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The Wellcome Trust/DBT India Alliance Bimonthly Newsletter. To download the pdf of the newsletter, click on the 'share' under the newsletter display.
Citation preview
ISSUE 4
News amp Views Issue 4 July 2015
INDIA ALLIANCE
Somewhere something incredible is waiting to be known - Carl Sagan
As we enter the second half of this year with the fourth issue of our newsletter (and a brand new website) we are
very thankful to all those who have taken time out to generously contribute to this newsletter thus far
In this issue we give you a roundup of news on our Fellowship schemes updates on the IA funded-research public
engagement and science communication activities along with some interesting articles and interviews
On the Fellowships front full applications for Clinical and Public Health fellowships Research Training Fellowships
Margdarshi Fellowships and preliminary applications for Early Career Fellowships (basic research scheme)are currently
under review Deadline to submit preliminary applications for the Senior and Intermediate Fellowships (basic research
scheme May 2016 competition) is 13 August 2015
We will be holding two-day Science Communication workshop in September 2015 in Hyderabad (applications under
review) and the next one-day SciComm101 workshop will be held on 23 July 2015 at Jamia Millia Islamia New Delhi We
conducted two SciComm101 workshops at the University of Kashmir in May 2015 first of its kind in the valley Dr Shaida
Andrabi our host at the University writes about the importance and impact of these workshops in this issue In the
Public Engagement corner Intermediate Fellow Dr Mukund Thattai and his colleagues write about their project
Bodystorming hits Bangalorelsquo- first Public Engagement project of a Fellow funded by the India Alliance Prominent
scientist and co-inventor of a DNA sequencing technology Prof Shankar Balasubramanian gave the fourth and final
lecture in our DNA70 Public Lecture series at NII New Delhi and IISc Bangalore For those of you who missed Prof
Balasubramanianlsquos lectures we feature his interview in this newsletter where he recounts his scientific journey shares
sound advice and much more
Also in this issue our Intermediate Fellow and wildlife ecologist Dr Farah Ishtiaq talks about her passion for science
and birds in the Fellow in Spotlight section Read about the recently published research of our Fellows Drs Mahak
Sharma Soumen Basak C V Srikanth and Thomas Pucadyil in the Research Highlights section In the article titled ―Fat
cells and insulin resistance unraveling the physiological underpinnings of the epidemicrdquo Early Career Fellow Dr Joe
Varghese describes the links between adipose tissue inflammation and insulin resistance in the background of his work
Our Intermediate Fellow Dr Arun Sripatilsquos short piece ldquowhat is good science and when do you know you are doing itrdquo
offers interesting perspectives and implicitly encourages scientists to seek answers for these questions In the staff corner
section our Grants Adviser Dr Dipanwita Sengupta gives us a glimpse of her early life interests and tells us what has
made her India Alliance journey so special Our heartfelt appreciation for all the aforementioned people for their
valuable contributions for this issue Last but never the least for the cover image we extend our gratitude to Dr Farah
Ishtiaq for sharing a lovely picture of a Parus Major (Great Tit) from her field research outing
We will continue to bring to you interesting scientific discoveries and discussions
Happy Monsoon season
Sarah Iqbal
Public Engagement Officer
EDITORIAL
1
CONTENTS
2
3 CALL FOR INDIA ALLIANCE FELLOWSHIP APPLICATIONS
Senior and Intermediate Fellowships (Basic research scheme)
4 INDIA ALLIANCE SCICOMM WORKSHOPS
5 INDIA ALLIANCE PUBLIC ENGAGEMENT CORNER
A dance-science interaction at the National Centre for Biological Sciences
by Dr Mukund Thattai and colleagues
7 INDIA ALLIANCE RESEARCH HIGHLIGHTS
Featuring recent research articles by Fellows Drs Mahak Sharma Soumen Basak
CV Srikanth Thomas Pucadyil
10 INDIA ALLIANCE FELLOW IN SPOTLIGHT
Dr Farah Ishtiaq Intermediate Fellow
12 FEATURE ARTICLE
Fat cells and insulin resistance unraveling the physiological underpinnings of the
epidemic by Dr Joe Varghese Early Career Fellow CMC Vellore
14 IN CONVERSATION WITH
Prof Shankar Balasubramanian Herchel Smith Professor of
Medicinal Chemistry at University of Cambridge UK
15 VIEWPOINT
What is good science and when do you know yoursquore doing it
by Dr Arun Sripati Intermediate Fellow IISc Bangalore
16 INDIA ALLIANCE STAFF CORNER
Dr Dipanwita Sengupta Grants Adviser India Alliance
17 EXTERNAL EVENTS
SENIOR AND INTERMEDIATE FELLOWSHIPS IN BIOMEDICAL RESEARCH Deadline 13 August 2015
Preliminary applications are invited for the two Fellowship
schemes in basic research category Intermediate
Fellowships and Senior Fellowships
Senior Fellowships For researchers with a proven track
record of leading an independent research group to
establish or expand their research programme in India For
applicants with 7-15 years of post-PhD research experience
Intermediate Fellowships For postdoctoral researchers who
want to establish an independent research career in India
For applicants with 4-7 years of post-PhD research
experience
Recommended Awardees for
Senior and Intermediate Fellowship (Basic) from May 2015
interview round
Intermediate Fellowship
Dr Sabyasachi Rakshit Indian
Institute Of Science Education And
Research Mohali
Dr Smarajit Polley Bose Institute
Kolkata
Dr Athi Narayanan Naganathan Indian Institute Of Technology Madras
Dr Kalyaneswar Mandal Indian
Institute of Chemical Biology Kolkata
Dr Sandeepa Eswarappa Indian
Institute of Science Bangalore
Dr Gulam Syed Institute Of Life
Sciences Bhubaneswar
Senior Fellowship
Dr Rupinder Kaur Centre for DNA
Fingerprinting and Diagnostics
Hyderabad
Dr Poonkuzhali Balasubramanian Christian Medical College Vellore
INDIA ALLIANCE FELLOWSHIP ANNOUNCEMENT
CALL FOR APPLICATIONS
Application forms are available on
the India Alliance online application
System (IASys) at
httpsfellowshipswellcomedbtorg
Loginaspx
Eligibility
No age or nationality restrictions
A PhD in any discipline of science
The candidates need not be resident in India while
applying but should be willing to relocate and work
in India
A salaried position or commitment towards a
salaried position at the Host Institution is not required
Applications from Clinicians and Public health
researchers will not be processed through this
competition
Please visit our website for further information on the application process Please write to us with
queries to infowellcomedbtorg
3
UPCOMING EVENTS
SCIENCE COMMUNICATION WORKSHOPS
SciComm101 workshop
23 July 2015 Jamia Millia Islamia
Two-day SciComm workshop
14-15 September 2015 Hyderabad
Applications under review
actively participate in the discussions In our programmes we
intentionally excluded the local faculty members from the
workshop so that the students feel free during the discussions
especially in the topics that deal with the bioethics and
authorship issues After attending the workshop our students
and scholars felt thrilled and highly satisfied This was a unique
experience for them as most of them surely would have been
unable to attend such a programme
By holding such kinds of high impact workshops I believe
that the India Alliance is doing a great service to the Indian
Science The vast population of the research scholars and
scientists that work in the various Universities and institutes
across India probably never get exposed to these kinds of
awareness and training programmes that are so essential for
their overall professional development
It would also be sensible to engage and enable all the
institutes universities to hold such programmes by themselves
in the long run The Wellcome TrustDBT India Alliance needs to
be congratulated and appreciated for conducting these
types of workshops On behalf of the University of Kashmir I
thank the India Alliance team particularly Dr Shahid Jameel
Dr Madhankumar and Dr Sarah Iqbal for taking all the pains to
conduct this workshop so well I hope that the India Alliance
team will conduct such types of workshops in Kashmir and
elsewhere in the coming years as well
April 2015 marked one year since the launch of our one-day Science Communication (SciComm101) workshop Since its inception more than 700 PhD students Postdocs Clinicians and young faculty have been trained in research ethics scientific writing and presentation
skills In May 2015 we conducted two SciComm101 workshops in University of Kashmir Dr Shaida Andrabi who invited us to conduct these workshops writes here his views on the workshop and how it helped in reaching out to students and researchers who would otherwise not be exposed to this kind of training
We are immensely grateful to the Wellcome TrustDBT India
Alliance for showing keen interest to hold the SciComm
Workshop at the University of Kashmir This was the first time
such a workshop was held in Kashmir Research scholars
young investigators (postdoctoral fellows) and medical doctors
(MBBS MD DM) from various institutes participated in the
workshop We had a very good response due to which the
workshop was conducted for two days (11th-12th May 2015) to
cover students in two groups We had participants from the
University of Kashmir SK University of Agricultural Science and
Technology (SKUAST) SK Institute of Medical Sciences (SKIMS)
and the Government Medical College (GMC) Srinagar A
total of 130 participants attended this workshop These
workshops cover various critical aspects like the bioethics
manuscript and grant writing presentation communication
skills In addition they also prepare the young scientists for a
competitive scientific career right from the beginning of their
professional training
The schedule of these workshops is very well-designed
Though these programmes run for the whole day (8-9 hrs) the
contents topics are so compact and diverse that the
participants do not feel exhausted or bored The constant
changes in the topics keep their minds well-focused Another
great aspect of the programme is that the India Alliance
mentors make the students very comfortable so that they
For more details visit SciComm Workshop under Quick Links on our website
By Dr Shaida Andrabi Assistant Professor Department of Biochemistry University of Kashmir
4
SciComm101 at University of Kashmir
Science is caricatured as a dry and soulless enterprise The
reality is of course far from it Those of us who ―do science
everyday know how much our work depends on imagination
creativity and accidental collisions of thought Enter
―Bodystorming Bodystorming means brainstorming with the
physical world Creative work may be stifled if we do all our
thinking at a desk we think best when mind and body are
integrated In the past few years bodystorming has been
adapted to bridge the ―two culture divide between science
and art by the Black Label Movement a Minnesota-based
dance company under the direction of Carl Flink (University of
Minnesota) working together with biomedical engineer David
Odde (University of Minnesota) Flink and Odde first used
bodystorming to model violent intra-cellular dynamics riding
off of a mutual interest in catastrophe Each was surprised by
the creative insights that this collaboration led to in their own
research with Odde gaining intuitions about the effect of
―crowders on chemical reactions and Flink creating dance
pieces with the BLM that drew artistic inspiration from the cell
Odde Flink and eight BLM dancers (or ―movers as they
are called) spent eight event-filled days in Bangalore from
A dance-science interaction at the National Centre for Biological Sciences
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
25 April to 2 May 2015 working with Indian biologists and
dancers to initiate new collaborations between science and
art The interaction was the brain-child of Darius Koumlster a
researcher at the National Centre for Biological Sciences
(NCBS) who first encountered bodystorming at the Marine
Biological Laboratory at Woods Hole Massachusetts in 2014 A
dancer himself Darius wondered about the possibility of
bringing the energy of bodystorming back to India The timing
was perfect in May 2014 the Wellcome Trust DBT India
Alliance had just announced its first Public Engagement
Competition Mukund Thattai an India Alliance Fellow who
had previously organised similar artscience engagements at
NCBS saw a convergence of goals bodystorming was a
unique exercise in creativity but also a unique way to engage
the public and to spread awareness about the excitement of
science The Bodystorming Public Engagement proposal was
successful and in April 2015 the BLM team arrived in
Bangalore
A key component of the Public Engagement proposal
was outreach to the community of traditional and modern
dancers across India To achieve this Aparna Banerjee of the
Intermediate Fellow Dr Mukund Thattai received the first India Alliance Public Engagement Award in 2015 Here along with his colleagues Aparna U Banerjee and Anjali Vaidya he writes about his Public Engagement project lsquoBodystorming hits Bangalorersquo from its conception to execution
5
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
Somewhere something incredible is waiting to be known - Carl Sagan
As we enter the second half of this year with the fourth issue of our newsletter (and a brand new website) we are
very thankful to all those who have taken time out to generously contribute to this newsletter thus far
In this issue we give you a roundup of news on our Fellowship schemes updates on the IA funded-research public
engagement and science communication activities along with some interesting articles and interviews
On the Fellowships front full applications for Clinical and Public Health fellowships Research Training Fellowships
Margdarshi Fellowships and preliminary applications for Early Career Fellowships (basic research scheme)are currently
under review Deadline to submit preliminary applications for the Senior and Intermediate Fellowships (basic research
scheme May 2016 competition) is 13 August 2015
We will be holding two-day Science Communication workshop in September 2015 in Hyderabad (applications under
review) and the next one-day SciComm101 workshop will be held on 23 July 2015 at Jamia Millia Islamia New Delhi We
conducted two SciComm101 workshops at the University of Kashmir in May 2015 first of its kind in the valley Dr Shaida
Andrabi our host at the University writes about the importance and impact of these workshops in this issue In the
Public Engagement corner Intermediate Fellow Dr Mukund Thattai and his colleagues write about their project
Bodystorming hits Bangalorelsquo- first Public Engagement project of a Fellow funded by the India Alliance Prominent
scientist and co-inventor of a DNA sequencing technology Prof Shankar Balasubramanian gave the fourth and final
lecture in our DNA70 Public Lecture series at NII New Delhi and IISc Bangalore For those of you who missed Prof
Balasubramanianlsquos lectures we feature his interview in this newsletter where he recounts his scientific journey shares
sound advice and much more
Also in this issue our Intermediate Fellow and wildlife ecologist Dr Farah Ishtiaq talks about her passion for science
and birds in the Fellow in Spotlight section Read about the recently published research of our Fellows Drs Mahak
Sharma Soumen Basak C V Srikanth and Thomas Pucadyil in the Research Highlights section In the article titled ―Fat
cells and insulin resistance unraveling the physiological underpinnings of the epidemicrdquo Early Career Fellow Dr Joe
Varghese describes the links between adipose tissue inflammation and insulin resistance in the background of his work
Our Intermediate Fellow Dr Arun Sripatilsquos short piece ldquowhat is good science and when do you know you are doing itrdquo
offers interesting perspectives and implicitly encourages scientists to seek answers for these questions In the staff corner
section our Grants Adviser Dr Dipanwita Sengupta gives us a glimpse of her early life interests and tells us what has
made her India Alliance journey so special Our heartfelt appreciation for all the aforementioned people for their
valuable contributions for this issue Last but never the least for the cover image we extend our gratitude to Dr Farah
Ishtiaq for sharing a lovely picture of a Parus Major (Great Tit) from her field research outing
We will continue to bring to you interesting scientific discoveries and discussions
Happy Monsoon season
Sarah Iqbal
Public Engagement Officer
EDITORIAL
1
CONTENTS
2
3 CALL FOR INDIA ALLIANCE FELLOWSHIP APPLICATIONS
Senior and Intermediate Fellowships (Basic research scheme)
4 INDIA ALLIANCE SCICOMM WORKSHOPS
5 INDIA ALLIANCE PUBLIC ENGAGEMENT CORNER
A dance-science interaction at the National Centre for Biological Sciences
by Dr Mukund Thattai and colleagues
7 INDIA ALLIANCE RESEARCH HIGHLIGHTS
Featuring recent research articles by Fellows Drs Mahak Sharma Soumen Basak
CV Srikanth Thomas Pucadyil
10 INDIA ALLIANCE FELLOW IN SPOTLIGHT
Dr Farah Ishtiaq Intermediate Fellow
12 FEATURE ARTICLE
Fat cells and insulin resistance unraveling the physiological underpinnings of the
epidemic by Dr Joe Varghese Early Career Fellow CMC Vellore
14 IN CONVERSATION WITH
Prof Shankar Balasubramanian Herchel Smith Professor of
Medicinal Chemistry at University of Cambridge UK
15 VIEWPOINT
What is good science and when do you know yoursquore doing it
by Dr Arun Sripati Intermediate Fellow IISc Bangalore
16 INDIA ALLIANCE STAFF CORNER
Dr Dipanwita Sengupta Grants Adviser India Alliance
17 EXTERNAL EVENTS
SENIOR AND INTERMEDIATE FELLOWSHIPS IN BIOMEDICAL RESEARCH Deadline 13 August 2015
Preliminary applications are invited for the two Fellowship
schemes in basic research category Intermediate
Fellowships and Senior Fellowships
Senior Fellowships For researchers with a proven track
record of leading an independent research group to
establish or expand their research programme in India For
applicants with 7-15 years of post-PhD research experience
Intermediate Fellowships For postdoctoral researchers who
want to establish an independent research career in India
For applicants with 4-7 years of post-PhD research
experience
Recommended Awardees for
Senior and Intermediate Fellowship (Basic) from May 2015
interview round
Intermediate Fellowship
Dr Sabyasachi Rakshit Indian
Institute Of Science Education And
Research Mohali
Dr Smarajit Polley Bose Institute
Kolkata
Dr Athi Narayanan Naganathan Indian Institute Of Technology Madras
Dr Kalyaneswar Mandal Indian
Institute of Chemical Biology Kolkata
Dr Sandeepa Eswarappa Indian
Institute of Science Bangalore
Dr Gulam Syed Institute Of Life
Sciences Bhubaneswar
Senior Fellowship
Dr Rupinder Kaur Centre for DNA
Fingerprinting and Diagnostics
Hyderabad
Dr Poonkuzhali Balasubramanian Christian Medical College Vellore
INDIA ALLIANCE FELLOWSHIP ANNOUNCEMENT
CALL FOR APPLICATIONS
Application forms are available on
the India Alliance online application
System (IASys) at
httpsfellowshipswellcomedbtorg
Loginaspx
Eligibility
No age or nationality restrictions
A PhD in any discipline of science
The candidates need not be resident in India while
applying but should be willing to relocate and work
in India
A salaried position or commitment towards a
salaried position at the Host Institution is not required
Applications from Clinicians and Public health
researchers will not be processed through this
competition
Please visit our website for further information on the application process Please write to us with
queries to infowellcomedbtorg
3
UPCOMING EVENTS
SCIENCE COMMUNICATION WORKSHOPS
SciComm101 workshop
23 July 2015 Jamia Millia Islamia
Two-day SciComm workshop
14-15 September 2015 Hyderabad
Applications under review
actively participate in the discussions In our programmes we
intentionally excluded the local faculty members from the
workshop so that the students feel free during the discussions
especially in the topics that deal with the bioethics and
authorship issues After attending the workshop our students
and scholars felt thrilled and highly satisfied This was a unique
experience for them as most of them surely would have been
unable to attend such a programme
By holding such kinds of high impact workshops I believe
that the India Alliance is doing a great service to the Indian
Science The vast population of the research scholars and
scientists that work in the various Universities and institutes
across India probably never get exposed to these kinds of
awareness and training programmes that are so essential for
their overall professional development
It would also be sensible to engage and enable all the
institutes universities to hold such programmes by themselves
in the long run The Wellcome TrustDBT India Alliance needs to
be congratulated and appreciated for conducting these
types of workshops On behalf of the University of Kashmir I
thank the India Alliance team particularly Dr Shahid Jameel
Dr Madhankumar and Dr Sarah Iqbal for taking all the pains to
conduct this workshop so well I hope that the India Alliance
team will conduct such types of workshops in Kashmir and
elsewhere in the coming years as well
April 2015 marked one year since the launch of our one-day Science Communication (SciComm101) workshop Since its inception more than 700 PhD students Postdocs Clinicians and young faculty have been trained in research ethics scientific writing and presentation
skills In May 2015 we conducted two SciComm101 workshops in University of Kashmir Dr Shaida Andrabi who invited us to conduct these workshops writes here his views on the workshop and how it helped in reaching out to students and researchers who would otherwise not be exposed to this kind of training
We are immensely grateful to the Wellcome TrustDBT India
Alliance for showing keen interest to hold the SciComm
Workshop at the University of Kashmir This was the first time
such a workshop was held in Kashmir Research scholars
young investigators (postdoctoral fellows) and medical doctors
(MBBS MD DM) from various institutes participated in the
workshop We had a very good response due to which the
workshop was conducted for two days (11th-12th May 2015) to
cover students in two groups We had participants from the
University of Kashmir SK University of Agricultural Science and
Technology (SKUAST) SK Institute of Medical Sciences (SKIMS)
and the Government Medical College (GMC) Srinagar A
total of 130 participants attended this workshop These
workshops cover various critical aspects like the bioethics
manuscript and grant writing presentation communication
skills In addition they also prepare the young scientists for a
competitive scientific career right from the beginning of their
professional training
The schedule of these workshops is very well-designed
Though these programmes run for the whole day (8-9 hrs) the
contents topics are so compact and diverse that the
participants do not feel exhausted or bored The constant
changes in the topics keep their minds well-focused Another
great aspect of the programme is that the India Alliance
mentors make the students very comfortable so that they
For more details visit SciComm Workshop under Quick Links on our website
By Dr Shaida Andrabi Assistant Professor Department of Biochemistry University of Kashmir
4
SciComm101 at University of Kashmir
Science is caricatured as a dry and soulless enterprise The
reality is of course far from it Those of us who ―do science
everyday know how much our work depends on imagination
creativity and accidental collisions of thought Enter
―Bodystorming Bodystorming means brainstorming with the
physical world Creative work may be stifled if we do all our
thinking at a desk we think best when mind and body are
integrated In the past few years bodystorming has been
adapted to bridge the ―two culture divide between science
and art by the Black Label Movement a Minnesota-based
dance company under the direction of Carl Flink (University of
Minnesota) working together with biomedical engineer David
Odde (University of Minnesota) Flink and Odde first used
bodystorming to model violent intra-cellular dynamics riding
off of a mutual interest in catastrophe Each was surprised by
the creative insights that this collaboration led to in their own
research with Odde gaining intuitions about the effect of
―crowders on chemical reactions and Flink creating dance
pieces with the BLM that drew artistic inspiration from the cell
Odde Flink and eight BLM dancers (or ―movers as they
are called) spent eight event-filled days in Bangalore from
A dance-science interaction at the National Centre for Biological Sciences
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
25 April to 2 May 2015 working with Indian biologists and
dancers to initiate new collaborations between science and
art The interaction was the brain-child of Darius Koumlster a
researcher at the National Centre for Biological Sciences
(NCBS) who first encountered bodystorming at the Marine
Biological Laboratory at Woods Hole Massachusetts in 2014 A
dancer himself Darius wondered about the possibility of
bringing the energy of bodystorming back to India The timing
was perfect in May 2014 the Wellcome Trust DBT India
Alliance had just announced its first Public Engagement
Competition Mukund Thattai an India Alliance Fellow who
had previously organised similar artscience engagements at
NCBS saw a convergence of goals bodystorming was a
unique exercise in creativity but also a unique way to engage
the public and to spread awareness about the excitement of
science The Bodystorming Public Engagement proposal was
successful and in April 2015 the BLM team arrived in
Bangalore
A key component of the Public Engagement proposal
was outreach to the community of traditional and modern
dancers across India To achieve this Aparna Banerjee of the
Intermediate Fellow Dr Mukund Thattai received the first India Alliance Public Engagement Award in 2015 Here along with his colleagues Aparna U Banerjee and Anjali Vaidya he writes about his Public Engagement project lsquoBodystorming hits Bangalorersquo from its conception to execution
5
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
CONTENTS
2
3 CALL FOR INDIA ALLIANCE FELLOWSHIP APPLICATIONS
Senior and Intermediate Fellowships (Basic research scheme)
4 INDIA ALLIANCE SCICOMM WORKSHOPS
5 INDIA ALLIANCE PUBLIC ENGAGEMENT CORNER
A dance-science interaction at the National Centre for Biological Sciences
by Dr Mukund Thattai and colleagues
7 INDIA ALLIANCE RESEARCH HIGHLIGHTS
Featuring recent research articles by Fellows Drs Mahak Sharma Soumen Basak
CV Srikanth Thomas Pucadyil
10 INDIA ALLIANCE FELLOW IN SPOTLIGHT
Dr Farah Ishtiaq Intermediate Fellow
12 FEATURE ARTICLE
Fat cells and insulin resistance unraveling the physiological underpinnings of the
epidemic by Dr Joe Varghese Early Career Fellow CMC Vellore
14 IN CONVERSATION WITH
Prof Shankar Balasubramanian Herchel Smith Professor of
Medicinal Chemistry at University of Cambridge UK
15 VIEWPOINT
What is good science and when do you know yoursquore doing it
by Dr Arun Sripati Intermediate Fellow IISc Bangalore
16 INDIA ALLIANCE STAFF CORNER
Dr Dipanwita Sengupta Grants Adviser India Alliance
17 EXTERNAL EVENTS
SENIOR AND INTERMEDIATE FELLOWSHIPS IN BIOMEDICAL RESEARCH Deadline 13 August 2015
Preliminary applications are invited for the two Fellowship
schemes in basic research category Intermediate
Fellowships and Senior Fellowships
Senior Fellowships For researchers with a proven track
record of leading an independent research group to
establish or expand their research programme in India For
applicants with 7-15 years of post-PhD research experience
Intermediate Fellowships For postdoctoral researchers who
want to establish an independent research career in India
For applicants with 4-7 years of post-PhD research
experience
Recommended Awardees for
Senior and Intermediate Fellowship (Basic) from May 2015
interview round
Intermediate Fellowship
Dr Sabyasachi Rakshit Indian
Institute Of Science Education And
Research Mohali
Dr Smarajit Polley Bose Institute
Kolkata
Dr Athi Narayanan Naganathan Indian Institute Of Technology Madras
Dr Kalyaneswar Mandal Indian
Institute of Chemical Biology Kolkata
Dr Sandeepa Eswarappa Indian
Institute of Science Bangalore
Dr Gulam Syed Institute Of Life
Sciences Bhubaneswar
Senior Fellowship
Dr Rupinder Kaur Centre for DNA
Fingerprinting and Diagnostics
Hyderabad
Dr Poonkuzhali Balasubramanian Christian Medical College Vellore
INDIA ALLIANCE FELLOWSHIP ANNOUNCEMENT
CALL FOR APPLICATIONS
Application forms are available on
the India Alliance online application
System (IASys) at
httpsfellowshipswellcomedbtorg
Loginaspx
Eligibility
No age or nationality restrictions
A PhD in any discipline of science
The candidates need not be resident in India while
applying but should be willing to relocate and work
in India
A salaried position or commitment towards a
salaried position at the Host Institution is not required
Applications from Clinicians and Public health
researchers will not be processed through this
competition
Please visit our website for further information on the application process Please write to us with
queries to infowellcomedbtorg
3
UPCOMING EVENTS
SCIENCE COMMUNICATION WORKSHOPS
SciComm101 workshop
23 July 2015 Jamia Millia Islamia
Two-day SciComm workshop
14-15 September 2015 Hyderabad
Applications under review
actively participate in the discussions In our programmes we
intentionally excluded the local faculty members from the
workshop so that the students feel free during the discussions
especially in the topics that deal with the bioethics and
authorship issues After attending the workshop our students
and scholars felt thrilled and highly satisfied This was a unique
experience for them as most of them surely would have been
unable to attend such a programme
By holding such kinds of high impact workshops I believe
that the India Alliance is doing a great service to the Indian
Science The vast population of the research scholars and
scientists that work in the various Universities and institutes
across India probably never get exposed to these kinds of
awareness and training programmes that are so essential for
their overall professional development
It would also be sensible to engage and enable all the
institutes universities to hold such programmes by themselves
in the long run The Wellcome TrustDBT India Alliance needs to
be congratulated and appreciated for conducting these
types of workshops On behalf of the University of Kashmir I
thank the India Alliance team particularly Dr Shahid Jameel
Dr Madhankumar and Dr Sarah Iqbal for taking all the pains to
conduct this workshop so well I hope that the India Alliance
team will conduct such types of workshops in Kashmir and
elsewhere in the coming years as well
April 2015 marked one year since the launch of our one-day Science Communication (SciComm101) workshop Since its inception more than 700 PhD students Postdocs Clinicians and young faculty have been trained in research ethics scientific writing and presentation
skills In May 2015 we conducted two SciComm101 workshops in University of Kashmir Dr Shaida Andrabi who invited us to conduct these workshops writes here his views on the workshop and how it helped in reaching out to students and researchers who would otherwise not be exposed to this kind of training
We are immensely grateful to the Wellcome TrustDBT India
Alliance for showing keen interest to hold the SciComm
Workshop at the University of Kashmir This was the first time
such a workshop was held in Kashmir Research scholars
young investigators (postdoctoral fellows) and medical doctors
(MBBS MD DM) from various institutes participated in the
workshop We had a very good response due to which the
workshop was conducted for two days (11th-12th May 2015) to
cover students in two groups We had participants from the
University of Kashmir SK University of Agricultural Science and
Technology (SKUAST) SK Institute of Medical Sciences (SKIMS)
and the Government Medical College (GMC) Srinagar A
total of 130 participants attended this workshop These
workshops cover various critical aspects like the bioethics
manuscript and grant writing presentation communication
skills In addition they also prepare the young scientists for a
competitive scientific career right from the beginning of their
professional training
The schedule of these workshops is very well-designed
Though these programmes run for the whole day (8-9 hrs) the
contents topics are so compact and diverse that the
participants do not feel exhausted or bored The constant
changes in the topics keep their minds well-focused Another
great aspect of the programme is that the India Alliance
mentors make the students very comfortable so that they
For more details visit SciComm Workshop under Quick Links on our website
By Dr Shaida Andrabi Assistant Professor Department of Biochemistry University of Kashmir
4
SciComm101 at University of Kashmir
Science is caricatured as a dry and soulless enterprise The
reality is of course far from it Those of us who ―do science
everyday know how much our work depends on imagination
creativity and accidental collisions of thought Enter
―Bodystorming Bodystorming means brainstorming with the
physical world Creative work may be stifled if we do all our
thinking at a desk we think best when mind and body are
integrated In the past few years bodystorming has been
adapted to bridge the ―two culture divide between science
and art by the Black Label Movement a Minnesota-based
dance company under the direction of Carl Flink (University of
Minnesota) working together with biomedical engineer David
Odde (University of Minnesota) Flink and Odde first used
bodystorming to model violent intra-cellular dynamics riding
off of a mutual interest in catastrophe Each was surprised by
the creative insights that this collaboration led to in their own
research with Odde gaining intuitions about the effect of
―crowders on chemical reactions and Flink creating dance
pieces with the BLM that drew artistic inspiration from the cell
Odde Flink and eight BLM dancers (or ―movers as they
are called) spent eight event-filled days in Bangalore from
A dance-science interaction at the National Centre for Biological Sciences
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
25 April to 2 May 2015 working with Indian biologists and
dancers to initiate new collaborations between science and
art The interaction was the brain-child of Darius Koumlster a
researcher at the National Centre for Biological Sciences
(NCBS) who first encountered bodystorming at the Marine
Biological Laboratory at Woods Hole Massachusetts in 2014 A
dancer himself Darius wondered about the possibility of
bringing the energy of bodystorming back to India The timing
was perfect in May 2014 the Wellcome Trust DBT India
Alliance had just announced its first Public Engagement
Competition Mukund Thattai an India Alliance Fellow who
had previously organised similar artscience engagements at
NCBS saw a convergence of goals bodystorming was a
unique exercise in creativity but also a unique way to engage
the public and to spread awareness about the excitement of
science The Bodystorming Public Engagement proposal was
successful and in April 2015 the BLM team arrived in
Bangalore
A key component of the Public Engagement proposal
was outreach to the community of traditional and modern
dancers across India To achieve this Aparna Banerjee of the
Intermediate Fellow Dr Mukund Thattai received the first India Alliance Public Engagement Award in 2015 Here along with his colleagues Aparna U Banerjee and Anjali Vaidya he writes about his Public Engagement project lsquoBodystorming hits Bangalorersquo from its conception to execution
5
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
SENIOR AND INTERMEDIATE FELLOWSHIPS IN BIOMEDICAL RESEARCH Deadline 13 August 2015
Preliminary applications are invited for the two Fellowship
schemes in basic research category Intermediate
Fellowships and Senior Fellowships
Senior Fellowships For researchers with a proven track
record of leading an independent research group to
establish or expand their research programme in India For
applicants with 7-15 years of post-PhD research experience
Intermediate Fellowships For postdoctoral researchers who
want to establish an independent research career in India
For applicants with 4-7 years of post-PhD research
experience
Recommended Awardees for
Senior and Intermediate Fellowship (Basic) from May 2015
interview round
Intermediate Fellowship
Dr Sabyasachi Rakshit Indian
Institute Of Science Education And
Research Mohali
Dr Smarajit Polley Bose Institute
Kolkata
Dr Athi Narayanan Naganathan Indian Institute Of Technology Madras
Dr Kalyaneswar Mandal Indian
Institute of Chemical Biology Kolkata
Dr Sandeepa Eswarappa Indian
Institute of Science Bangalore
Dr Gulam Syed Institute Of Life
Sciences Bhubaneswar
Senior Fellowship
Dr Rupinder Kaur Centre for DNA
Fingerprinting and Diagnostics
Hyderabad
Dr Poonkuzhali Balasubramanian Christian Medical College Vellore
INDIA ALLIANCE FELLOWSHIP ANNOUNCEMENT
CALL FOR APPLICATIONS
Application forms are available on
the India Alliance online application
System (IASys) at
httpsfellowshipswellcomedbtorg
Loginaspx
Eligibility
No age or nationality restrictions
A PhD in any discipline of science
The candidates need not be resident in India while
applying but should be willing to relocate and work
in India
A salaried position or commitment towards a
salaried position at the Host Institution is not required
Applications from Clinicians and Public health
researchers will not be processed through this
competition
Please visit our website for further information on the application process Please write to us with
queries to infowellcomedbtorg
3
UPCOMING EVENTS
SCIENCE COMMUNICATION WORKSHOPS
SciComm101 workshop
23 July 2015 Jamia Millia Islamia
Two-day SciComm workshop
14-15 September 2015 Hyderabad
Applications under review
actively participate in the discussions In our programmes we
intentionally excluded the local faculty members from the
workshop so that the students feel free during the discussions
especially in the topics that deal with the bioethics and
authorship issues After attending the workshop our students
and scholars felt thrilled and highly satisfied This was a unique
experience for them as most of them surely would have been
unable to attend such a programme
By holding such kinds of high impact workshops I believe
that the India Alliance is doing a great service to the Indian
Science The vast population of the research scholars and
scientists that work in the various Universities and institutes
across India probably never get exposed to these kinds of
awareness and training programmes that are so essential for
their overall professional development
It would also be sensible to engage and enable all the
institutes universities to hold such programmes by themselves
in the long run The Wellcome TrustDBT India Alliance needs to
be congratulated and appreciated for conducting these
types of workshops On behalf of the University of Kashmir I
thank the India Alliance team particularly Dr Shahid Jameel
Dr Madhankumar and Dr Sarah Iqbal for taking all the pains to
conduct this workshop so well I hope that the India Alliance
team will conduct such types of workshops in Kashmir and
elsewhere in the coming years as well
April 2015 marked one year since the launch of our one-day Science Communication (SciComm101) workshop Since its inception more than 700 PhD students Postdocs Clinicians and young faculty have been trained in research ethics scientific writing and presentation
skills In May 2015 we conducted two SciComm101 workshops in University of Kashmir Dr Shaida Andrabi who invited us to conduct these workshops writes here his views on the workshop and how it helped in reaching out to students and researchers who would otherwise not be exposed to this kind of training
We are immensely grateful to the Wellcome TrustDBT India
Alliance for showing keen interest to hold the SciComm
Workshop at the University of Kashmir This was the first time
such a workshop was held in Kashmir Research scholars
young investigators (postdoctoral fellows) and medical doctors
(MBBS MD DM) from various institutes participated in the
workshop We had a very good response due to which the
workshop was conducted for two days (11th-12th May 2015) to
cover students in two groups We had participants from the
University of Kashmir SK University of Agricultural Science and
Technology (SKUAST) SK Institute of Medical Sciences (SKIMS)
and the Government Medical College (GMC) Srinagar A
total of 130 participants attended this workshop These
workshops cover various critical aspects like the bioethics
manuscript and grant writing presentation communication
skills In addition they also prepare the young scientists for a
competitive scientific career right from the beginning of their
professional training
The schedule of these workshops is very well-designed
Though these programmes run for the whole day (8-9 hrs) the
contents topics are so compact and diverse that the
participants do not feel exhausted or bored The constant
changes in the topics keep their minds well-focused Another
great aspect of the programme is that the India Alliance
mentors make the students very comfortable so that they
For more details visit SciComm Workshop under Quick Links on our website
By Dr Shaida Andrabi Assistant Professor Department of Biochemistry University of Kashmir
4
SciComm101 at University of Kashmir
Science is caricatured as a dry and soulless enterprise The
reality is of course far from it Those of us who ―do science
everyday know how much our work depends on imagination
creativity and accidental collisions of thought Enter
―Bodystorming Bodystorming means brainstorming with the
physical world Creative work may be stifled if we do all our
thinking at a desk we think best when mind and body are
integrated In the past few years bodystorming has been
adapted to bridge the ―two culture divide between science
and art by the Black Label Movement a Minnesota-based
dance company under the direction of Carl Flink (University of
Minnesota) working together with biomedical engineer David
Odde (University of Minnesota) Flink and Odde first used
bodystorming to model violent intra-cellular dynamics riding
off of a mutual interest in catastrophe Each was surprised by
the creative insights that this collaboration led to in their own
research with Odde gaining intuitions about the effect of
―crowders on chemical reactions and Flink creating dance
pieces with the BLM that drew artistic inspiration from the cell
Odde Flink and eight BLM dancers (or ―movers as they
are called) spent eight event-filled days in Bangalore from
A dance-science interaction at the National Centre for Biological Sciences
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
25 April to 2 May 2015 working with Indian biologists and
dancers to initiate new collaborations between science and
art The interaction was the brain-child of Darius Koumlster a
researcher at the National Centre for Biological Sciences
(NCBS) who first encountered bodystorming at the Marine
Biological Laboratory at Woods Hole Massachusetts in 2014 A
dancer himself Darius wondered about the possibility of
bringing the energy of bodystorming back to India The timing
was perfect in May 2014 the Wellcome Trust DBT India
Alliance had just announced its first Public Engagement
Competition Mukund Thattai an India Alliance Fellow who
had previously organised similar artscience engagements at
NCBS saw a convergence of goals bodystorming was a
unique exercise in creativity but also a unique way to engage
the public and to spread awareness about the excitement of
science The Bodystorming Public Engagement proposal was
successful and in April 2015 the BLM team arrived in
Bangalore
A key component of the Public Engagement proposal
was outreach to the community of traditional and modern
dancers across India To achieve this Aparna Banerjee of the
Intermediate Fellow Dr Mukund Thattai received the first India Alliance Public Engagement Award in 2015 Here along with his colleagues Aparna U Banerjee and Anjali Vaidya he writes about his Public Engagement project lsquoBodystorming hits Bangalorersquo from its conception to execution
5
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
UPCOMING EVENTS
SCIENCE COMMUNICATION WORKSHOPS
SciComm101 workshop
23 July 2015 Jamia Millia Islamia
Two-day SciComm workshop
14-15 September 2015 Hyderabad
Applications under review
actively participate in the discussions In our programmes we
intentionally excluded the local faculty members from the
workshop so that the students feel free during the discussions
especially in the topics that deal with the bioethics and
authorship issues After attending the workshop our students
and scholars felt thrilled and highly satisfied This was a unique
experience for them as most of them surely would have been
unable to attend such a programme
By holding such kinds of high impact workshops I believe
that the India Alliance is doing a great service to the Indian
Science The vast population of the research scholars and
scientists that work in the various Universities and institutes
across India probably never get exposed to these kinds of
awareness and training programmes that are so essential for
their overall professional development
It would also be sensible to engage and enable all the
institutes universities to hold such programmes by themselves
in the long run The Wellcome TrustDBT India Alliance needs to
be congratulated and appreciated for conducting these
types of workshops On behalf of the University of Kashmir I
thank the India Alliance team particularly Dr Shahid Jameel
Dr Madhankumar and Dr Sarah Iqbal for taking all the pains to
conduct this workshop so well I hope that the India Alliance
team will conduct such types of workshops in Kashmir and
elsewhere in the coming years as well
April 2015 marked one year since the launch of our one-day Science Communication (SciComm101) workshop Since its inception more than 700 PhD students Postdocs Clinicians and young faculty have been trained in research ethics scientific writing and presentation
skills In May 2015 we conducted two SciComm101 workshops in University of Kashmir Dr Shaida Andrabi who invited us to conduct these workshops writes here his views on the workshop and how it helped in reaching out to students and researchers who would otherwise not be exposed to this kind of training
We are immensely grateful to the Wellcome TrustDBT India
Alliance for showing keen interest to hold the SciComm
Workshop at the University of Kashmir This was the first time
such a workshop was held in Kashmir Research scholars
young investigators (postdoctoral fellows) and medical doctors
(MBBS MD DM) from various institutes participated in the
workshop We had a very good response due to which the
workshop was conducted for two days (11th-12th May 2015) to
cover students in two groups We had participants from the
University of Kashmir SK University of Agricultural Science and
Technology (SKUAST) SK Institute of Medical Sciences (SKIMS)
and the Government Medical College (GMC) Srinagar A
total of 130 participants attended this workshop These
workshops cover various critical aspects like the bioethics
manuscript and grant writing presentation communication
skills In addition they also prepare the young scientists for a
competitive scientific career right from the beginning of their
professional training
The schedule of these workshops is very well-designed
Though these programmes run for the whole day (8-9 hrs) the
contents topics are so compact and diverse that the
participants do not feel exhausted or bored The constant
changes in the topics keep their minds well-focused Another
great aspect of the programme is that the India Alliance
mentors make the students very comfortable so that they
For more details visit SciComm Workshop under Quick Links on our website
By Dr Shaida Andrabi Assistant Professor Department of Biochemistry University of Kashmir
4
SciComm101 at University of Kashmir
Science is caricatured as a dry and soulless enterprise The
reality is of course far from it Those of us who ―do science
everyday know how much our work depends on imagination
creativity and accidental collisions of thought Enter
―Bodystorming Bodystorming means brainstorming with the
physical world Creative work may be stifled if we do all our
thinking at a desk we think best when mind and body are
integrated In the past few years bodystorming has been
adapted to bridge the ―two culture divide between science
and art by the Black Label Movement a Minnesota-based
dance company under the direction of Carl Flink (University of
Minnesota) working together with biomedical engineer David
Odde (University of Minnesota) Flink and Odde first used
bodystorming to model violent intra-cellular dynamics riding
off of a mutual interest in catastrophe Each was surprised by
the creative insights that this collaboration led to in their own
research with Odde gaining intuitions about the effect of
―crowders on chemical reactions and Flink creating dance
pieces with the BLM that drew artistic inspiration from the cell
Odde Flink and eight BLM dancers (or ―movers as they
are called) spent eight event-filled days in Bangalore from
A dance-science interaction at the National Centre for Biological Sciences
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
25 April to 2 May 2015 working with Indian biologists and
dancers to initiate new collaborations between science and
art The interaction was the brain-child of Darius Koumlster a
researcher at the National Centre for Biological Sciences
(NCBS) who first encountered bodystorming at the Marine
Biological Laboratory at Woods Hole Massachusetts in 2014 A
dancer himself Darius wondered about the possibility of
bringing the energy of bodystorming back to India The timing
was perfect in May 2014 the Wellcome Trust DBT India
Alliance had just announced its first Public Engagement
Competition Mukund Thattai an India Alliance Fellow who
had previously organised similar artscience engagements at
NCBS saw a convergence of goals bodystorming was a
unique exercise in creativity but also a unique way to engage
the public and to spread awareness about the excitement of
science The Bodystorming Public Engagement proposal was
successful and in April 2015 the BLM team arrived in
Bangalore
A key component of the Public Engagement proposal
was outreach to the community of traditional and modern
dancers across India To achieve this Aparna Banerjee of the
Intermediate Fellow Dr Mukund Thattai received the first India Alliance Public Engagement Award in 2015 Here along with his colleagues Aparna U Banerjee and Anjali Vaidya he writes about his Public Engagement project lsquoBodystorming hits Bangalorersquo from its conception to execution
5
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
Science is caricatured as a dry and soulless enterprise The
reality is of course far from it Those of us who ―do science
everyday know how much our work depends on imagination
creativity and accidental collisions of thought Enter
―Bodystorming Bodystorming means brainstorming with the
physical world Creative work may be stifled if we do all our
thinking at a desk we think best when mind and body are
integrated In the past few years bodystorming has been
adapted to bridge the ―two culture divide between science
and art by the Black Label Movement a Minnesota-based
dance company under the direction of Carl Flink (University of
Minnesota) working together with biomedical engineer David
Odde (University of Minnesota) Flink and Odde first used
bodystorming to model violent intra-cellular dynamics riding
off of a mutual interest in catastrophe Each was surprised by
the creative insights that this collaboration led to in their own
research with Odde gaining intuitions about the effect of
―crowders on chemical reactions and Flink creating dance
pieces with the BLM that drew artistic inspiration from the cell
Odde Flink and eight BLM dancers (or ―movers as they
are called) spent eight event-filled days in Bangalore from
A dance-science interaction at the National Centre for Biological Sciences
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
25 April to 2 May 2015 working with Indian biologists and
dancers to initiate new collaborations between science and
art The interaction was the brain-child of Darius Koumlster a
researcher at the National Centre for Biological Sciences
(NCBS) who first encountered bodystorming at the Marine
Biological Laboratory at Woods Hole Massachusetts in 2014 A
dancer himself Darius wondered about the possibility of
bringing the energy of bodystorming back to India The timing
was perfect in May 2014 the Wellcome Trust DBT India
Alliance had just announced its first Public Engagement
Competition Mukund Thattai an India Alliance Fellow who
had previously organised similar artscience engagements at
NCBS saw a convergence of goals bodystorming was a
unique exercise in creativity but also a unique way to engage
the public and to spread awareness about the excitement of
science The Bodystorming Public Engagement proposal was
successful and in April 2015 the BLM team arrived in
Bangalore
A key component of the Public Engagement proposal
was outreach to the community of traditional and modern
dancers across India To achieve this Aparna Banerjee of the
Intermediate Fellow Dr Mukund Thattai received the first India Alliance Public Engagement Award in 2015 Here along with his colleagues Aparna U Banerjee and Anjali Vaidya he writes about his Public Engagement project lsquoBodystorming hits Bangalorersquo from its conception to execution
5
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
NCBS Science and Society program partnered with the Antara
Artistslsquo Collective to spread the word among the dance
community The response was tremendous Bodystorming Hits
Bangalorelsquo began with a weekend where BLM movers taught
bodystorming techniques to 25 Indian dancers This initial
training was followed by a residency at NCBS where biologists
and dancers worked together to model systems ranging from
the dynamics of virus propagation in bacterial populations to
glycosylation honey bee behaviour and speciation in frogs
Scientists searched for insights about their systems through the
physicality of dance often participating in their own models
Dancers in turn spent afternoons improvising on scientific
structures to create art Both products of the workshop came
together on May 2nd at the National Gallery of Modern Art
(NGMA) Bangalore as dancers showcased the human
simulations and art pieces created over the past week This
publicly-attended event presented science in an unusual and
very human light The audience engaged enthusiastically with
the performers and went away with new insights into the
scientific process
Several plans are now in the works to take bodystorming
forward in India Aparna Banerjee is working with Carl Flink and
others to create a bodystorming node in India with a focus on
community engagement One possibility is to expand
bodystorming beyond biology (for instance to economics)
given that bodystorming could help individuals build intuition
for any problems involving dynamic systems Another plan is to
look at the potential for bodystorming as a pedagogical tool
This is a specific interest of both Aparna Banerjee also a
dancer and Shabari Rao Research Artist in Residence at the
Antara Artistslsquo Collective who managed the documentation
process for this residency Bodystorming may be one way to
give students in a classroom a more visceral understanding of
complex scientific concepts A ―bodystorming club may also
be started at NCBS where scientists dancers and scientists
with dance proclivities can continue the efforts of Aprils week-
long residency and expand to cover new questions
----
To find out more about this project and the various workshops that took place visit httpsbodystormingindiawordpresscom httpbodystormingindiacom Photo credits BLM group amp Bill Cameron Photography
Public Engagement Competition for India Alliance Fellows
Besides its Fellowship Programme the Wellcome TrustDBT India
Alliance aims to enhance the public understanding of science
in India It has become increasingly important for scientists to
engage with the public to increase the awareness of science
technology and medicine (STM) research and themselves get
fresh perspectives on their research towards a larger picture
To enable our Fellows to effectively and creatively engage
with the society about biomedical science we announced
the first rolling Public Engagement competitionlsquo in May 2014
This competition is a valuable opportunity for our Fellows to
showcase and share their Science with the Public and
collaborate with other members of the society The
engagement can be through research social activities
teaching arts moviesdocumentary and other modes of
knowledge sharing with the central goal of educating and
improving public awareness of science and human health
issues To apply please download the application
form here and send the completed application form to
publicengagementwellcomedbtorg
INDIA ALLIANCE
PUBLIC ENGAGEMENT CORNER
6
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Regulating delivery to the recycling center of the cell Regulation of cargo trafficking to lysosomes
DR MAHAK SHARMA Intermediate Fellow IISER Mohali
Lysosomes are membrane-bound compartments within cells of
all eukaryotes that are dedicated to degradation of cellular
cargo and recycling their contents to maintain the normal
homeostasis of the cell Several of these cargo molecules
including signaling receptors or misfolded proteins if not
degraded can cause life-threatening diseases including
cancer or neurodegenerative disorders In our recently
published research we have described the regulation of a key
protein complex that resides on lysosomes and mediates
delivery of cargo molecules to this recycling center of the cell
This protein complex known as HOmotypic Fusion and Protein
Sorting (HOPS) complex is formed by six proteins that are
conserved from yeast to humans In this Journal of Cell Science
publication we have identified for the first time how the
human HOPS complex is targeted to lysosomes and how this
regulates function of this protein complex in trafficking
Our findings indicate that HOPS complex regulates destruction
of epidermal growth factor receptor (EGFR) in lysosomes
EGFR is a potent cancer-causing gene (oncogene) that drives
tumor progression Further it is known that HOPS complex is
required for the clearance of misfolded proteins associated
with Parkinsonlsquos disease We find that a previously-reported
variant of HOPS protein present in a small percentage of the
human population cannot bind to lysosomes It will be
important to study if this population has a higher risk of
diseases including Parkinsonlsquos and cancer that can be
caused due to interference with functions of lysosome
The small GTPase Arl8b regulates assembly of the mammalian HOPS
complex on lysosomes
Khatter D Raina VB Dwivedi D Sindhwani A Bahl S Sharma M
J Cell Sci 2015 May
Image HOPS protein subunits colocalise with small GTPase Arl8b on
lysosomes in the cell
The pleiotropic signaling pathways are
prevalent and are thought to impart the
capacity in mammalian cells to respond to a
variety of external stimuli Our recent work
has revealed an additional biological
function of these pleiotropic signaling systems
microbial agents Our results showed that the signal integration
via the NF-kB system reinforces pro-inflammatory cellular
responses to pathogenic cues within the intestinal niche and
ensures efficient clearance of the gut-pathogen Citrobacter
rodentium These findings further suggest that aberrant
signaling crosstalk via the NF-κB system may underlie the
pathophysiology of various inflammatory disorders and
autoimmune diseases
Integrating cellular cues
DR SOUMEN BASAK Intermediate Fellow NII New Delhi
present inside the cell in integrating signals derived from
diverse cell-activating cues In our recently published study in
eLife we have identified that the integration of inflammation-
provoking signals and cues from the tissue environment occurs
via the so-called ―NF-kB signaling system which plays a key
role in coordinating immune responses against invading
Stimulus-selective crosstalk via the NF-kB signaling system reinforces
innate immune response to alleviate gut infection Balaji Banoth
Budhaditya Chatterjee Bharath Vijayaragavan MVR Prasad Payel
Roy Soumen Basak eLife 2015
7
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Acute gastroenteritis caused by the bacterium Salmonella
Typhimurium (ST) is a clinical problem with significant public
health impact Symptoms such as diarrhea and abdominal
cramps are a consequence of bacteria-mediated
inflammation causative mechanisms of which are poorly
understood In our recently published report we have studied
these bacteria in an attempt to identify novel components of
Salmonella-host crosstalk and endeavored to investigate an
unexplored mechanism of pathogen mediated host
manipulation This mechanism called as SUMOylation is a form
of protein-modification that could drastically change the
function and fate of its target We demonstrate in cell culture
and mouse model that Salmonella infection leads to a global
SUMO-conjugated proteome alteration Our data reveals that
key enzymes that participate in SUMOylation processes were
targeted by ST during infection to achieve this alteration
Opposing the ST-mediated SUMO alteration resulted in severely
compromised bacterial infection particularly affecting the
intracellular life of bacteria Furthermore our results reveal that
mechanistically Salmonella orchestrates this process by
engaging small RNAs of the host Together we demonstrate
SUMOylation as a novel key pathway utilised by ST for its
infection and survival
Salmonella engages host microRNAs to modulate SUMOylation a new
arsenal for intracellular survival
Smriti Verma Gayatree Mohapatra Salman Mustafa Ahmed Sarika
Rana Swati Jain Jasneet Kaur Khalsa and C V Srikanth Molecular and
Cellular Biology June 2015
Images Salmonella tussle with host SUMO
Cells with more SUMO show lesser bacteria and vice versa Labeling
Salmonella labelled with red (mCherry) host-SUMOylome Yellow (Yellow
fluorescent protein)
lsquoCLASPrsquoing the uptake of membrane proteins Deciphering the molecular determinants of clathrin assembly
DR THOMAS PUCADYIL Intermediate Fellow IISER Pune
Salmonella SUMO tussle
DR CV SRIKANTH Intermediate Fellow RCB Faridabad
compartments Most membrane proteins are endocytosed
from the cell surface by a protein called clathrin which
polymerises into a basket-shaped structure to bud-out a
portion of the plasma membrane called the clathrin-coated
pit Clathrin requires a class of proteins called the clathrin-
associated sorting proteins (CLASPs) for its recruitment to the
plasma membrane Their ability to build a clathrin-coat around
the membrane is critical to the endocytic uptake of
membrane proteins CLASPs are an evolutionarily conserved
8
Critical aspects of cellular physiology such as cell-fate
determination self and non-self discrimination and effective
sensing of nutrients in the cellular microenvironment rely on
a finely controlled display of membrane proteins on the cell
surface The cell surface localisation of most membrane
proteins is not static but is in fact a balanced outcome of
complex trafficking pathways involving the endocytic
uptake from and recycling back of membrane proteins to
the cell surface or their diversion to internal endolysosomal
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
Thus sensitive assays that contribute to defining the molecular
determinants of these early sets of interactions are critical to
understanding the endocytic uptake of membrane proteins
Epsin is a prominent member of the CLASP family and is
essential for the success of clathrin-dependent endocytic
uptake of membrane proteins Our recent paper describes
analysis of the intrinsic molecular properties of epsin that would
help understand the cellular mechanisms by which epsin
functions in clathrin-dependent endocytic pathways Using
novel biochemical and fluorescence microscopic assays with
purified epsin and clathrin we demonstrate that epsin
effectively localises to membrane surfaces that are highly
curved and in turn directs clathrin assembly to such regions
Since every membrane budding event involves progressive
increase in membrane curvature these results highlight the
potential role of membrane curvature in orchestrating the
myriad molecular interactions necessary for the success of
clathrin-mediated membrane budding The set of biochemical
assays described in our paper which is the first to recreate
clathrin polymerisation on a membrane surface 40 years since
clathrin was discovered also sets the stage for a systematic
analysis of the clathrin polymerisation tendency of the other
members of the CLASP family
set of adaptors that function to expand the repertoire of
membrane proteins taken-up via the clathrin-mediated
endocytic pathway Each category of CLASPs mediates the
internalisation of significant classes of membrane proteins such
as the G-protein coupled receptors nutrient receptors cell
adhesion and antigen-presenting molecules CLASPs recognise
short stretches or folded domains on membrane proteins bind
specific lipids and clathrin These interactions define the early
rate-limiting steps during the formation of clathrin-coated pits
Since they require simultaneous lipid and protein interactions
for stability analysis of these early steps has remained elusive
JBC Podcasts
httpssoundcloudcomasbmbspatial-control-of-epsin-
induced-clathrin-assembly-by-membrane-curvature
http
Spatial control of epsin-induced clathrin assembly by membrane
curvature
Sachin S Holkar Sukrut C Kamerkar and Thomas J Pucadyil Journal of
Biological Chemistry April 2015
INDIA ALLIANCE
RESEARCH HIGHLIGHTS
Please email your research stories and publications to publicengagementwellcomedbtorg
Cover page article
9
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
Dr Farah Ishtiaq is a wildlife ecologist and Wellcome TrustDBT Intermediate Fellow at the
Centre for Ecological Sciences Indian Institute of Science Bangalore Her research examines the
effects of infectious diseases on the ecology and evolution of birds In this interview she talks about
her research and its impact what inspires and keeps her going everyday
INDIA ALLIANCE FELLOW IN SPOTLIGHT
DR FARAH ISHTIAQ Intermediate Fellow IISc Bangalore
Acrocephalus dumetorum migrant in southern India
What are you working on and what impact do you hope it will have
Avian malaria is a disease caused by a protozoan parasite
infecting birds in many parts of the world Unlike human
malaria to which it is closely related itlsquos not a tropical disease
and is also found in birds in temperate regions Most birds
survive without serious effects of the infection However like
many diseases malaria can be most dangerous in a host
species that has not been exposed to the disease before and
therefore wonlsquot have evolved resistance Islands in the
Hawaiian archipelago are a classic example of how biological
invasions can have a profound effect on endemic species
These islands have been isolated from the mainland for many
millions of years Geographical isolation and colonisation from
the mainland facilitated the evolution of countless unique life
forms mdash including the Hawaiian honeycreepers Avian malaria
and a mosquito species Culex quinquefasciatus that transmit it
was introduced accidentally to Hawaii about a century ago
and caused big population declines and extinctions in many
of the birds that were native to those islands since they also
had no resistance to malaria
The ultimate goal of my research is to determine the
influence of ecological variability such as changes in
temperature vector community bird migration patterns and
habitat on the epidemiology of avian malaria and spread of
disease in high altitude malaria-free zones My lab is focusing
on the distribution and movement of two widespread avian
blood parasites Plasmodium and Haemoproteus and by
determining the extent to which Himalayan migrant birds are
exposed to these parasites in their wintering grounds
Malaria parasites depend on the abundance and distribution
of arthropod vectors which seem to respond sensitively to
temperature changes and thereby global warming so
influencing the immunogenetics of hosts by exposing them to
new parasites on spatio-temporal scales
In the plains the resident birds may act as reservoirs for
blood parasites increasing the risk that migrants will become
infected with new parasites on their wintering grounds Insects
are among the groups of organisms most likely to be affected
by climate change because climate has a particularly strong
direct influence on their development reproduction and
survival Given that suitable vectors are present to transmit and
maintain the infection such migrants can form an effective
bridge for parasites between wintering and breeding grounds If
the high altitude avian fauna has evolved in the absence of
these blood parasites their risk of infection is potentially
increased
My research focuses on the distribution of both Plasmodium
and Haemoproteus blood parasites It also investigates the
extent to which these parasites are exchanged between
migrating and resident bird populations and how the vectors
that carry these parasites between hosts are expanding to new
areas in the Himalayas The study is challenging because
although we know the Western Himalayas are species-rich the
area is also relatively understudied and there has been no
research on the dynamics of the avian diseases and their
vectors to date The findings from this research will help to
understand avian malaria transmission zones and the risk of
range expansion of this disease in relation to naiumlve mountain
birds
10
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
biochemical and molecular biology approaches One of the
most important things that WTDBT India Alliance funding
allowed me to acquire was all the necessary equipment to set
up a molecular lab and to conduct field and lab experiments -
which can be restrictive with many other grants My association
with this prestigious fellowship has helped to attract talented
students and postdoctoral applicants to my laboratory which
has further helped my research
What keeps you going every day
I am passionate about birds and science My work takes me to
interesting and beautiful places teaming with birds and other
wildlife I like the fact that my research doesnlsquot just involve
being in a lab and processing samples Having a field research
component helps to bring important perspective to research
questions and ideas
INDIA ALLIANCE FELLOW SPOTLIGHT
FARAH ISHTIAQ
What inspired you to become a scientist
I have been fascinated by nature and science since my
childhood Why there is so much diversity in life and how they
co-exist compete and evolve into new species has always
fascinated me I have been an avid birdwatcher since as an
undergraduate My passion for birds (owls in particular)
science and conservation which started early when growing
up in Delhi watching wildlife documentaries learning about
long distance migration of Siberian cranes to the only
wintering site in India intrigued me a lot My father has been
the strongest driving force who gently pushed me to follow
my dreams to study birds and to take up wildlife ecology as
career which was at that time considered as chasing a goose
in the dark I am very glad to be able to combine both my
hobby and profession which gives me the best of both worlds
How has Wellcome TrustDBT India Alliance funding helped you and your research
The Wellcome TrustDBT India Alliance Intermediate
Fellowship has played a crucial role in setting up my research
program at Centre for Ecological Sciences IISc Bangalore I
had dreamed about this research programme since my
postdoctoral research I was very pleased to be selected for
Ramanujan Fellowship which of course I declined eventually
as the WTDBT India Alliance fellowship gave me more
support and flexibility My research deals with extensive field
experiments which involve mist netting of birds across
altitudinal gradient in Himalayas and mosquito sampling We
also conduct year-round experimental field work in
Bangalore The generous funds from this fellowship have
allowed me to set up field and lab components and to ask
several important and novel questions which have never
been explored in India My laboratory uses microscopy
mosquito salivary glands dissections and other routine
Image above (right) Mist net set up in the field
(Left) Haemoporteus parasite sampled Z33653 Acrocephalus dumetorum caught in Bangalore Farah Ishtiaq
sampling birds in western Himalaya
Photo credits Farah Ishtiaq
Find out more about Dr Farah Ishtiaqlsquos research work here
11
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
DR JOE VARGHESE Early Career Fellow
Adipose tissue (body fat) used to be considered as an inert
energy store The very appearance of a fat cell adipocyte
with its large lipid globule occupying most of its volume
minimal amounts of cytoplasm and a nucleus isolated to the
periphery of the cell gives it the most innocuous look
However it is now known that adipose tissue is a metabolically
active organ with multiple endocrine functions that can
influence whole-body metabolism in many ways Recent
research has focused on the adipose tissue as the key agent
behind the development of insulin resistance and diabetes
mellitus (1)
The problem of obesity has grown to epidemic proportions
over the last several decades with changing lifestyles and food
habits More than 50 of the population in the western world is
either overweight or obese (2) Reliable data from India is
unavailable however even by conservative estimates it is
believed that obesity contributes significantly to morbidity and
mortality in the general population Obesity puts an individual
at high risk for many disease conditions diabetes mellitus
coronary artery disease hypertension stroke cancer and
osteoarthritis are some examples It is by far the most important
risk factor for diabetes mellitus A number of studies have
shown a strong association between the body mass index
(BMI) and insulin resistance the hallmark of type 2 diabetes
mellitus (3)
Insulin resistance refers to the impaired ability of the body
to respond to insulin by reducing blood glucose levels Tissues
such as adipose tissue and skeletal muscle are unable to take
up glucose from the blood under these conditions resulting in
increased blood glucose levels (hyperglycemia)
Hyperglycemia triggers several biochemical events that
ultimately result in chronic complications of diabetes such as
nephropathy retinopathy and neuropathy
Although it is known that a strong association exists between
obesity and insulin resistance the exact molecular
mechanisms involved are not precisely clear A significant
proportion of obese individuals do not develop diabetes
mellitus they remain insulin- sensitive and are metabolically
healthy despite increased body weight (4) Morbidly obese
individuals who have undergone bariatric surgery have
remarkably improved insulin sensitivity that precedes significant
weight reduction (5) It therefore appears that adipose tissue
per se does not directly induce insulin resistance
Research over the last decade or so has shown that
inflammatory events in adipose tissue especially in the visceral
adipose depots play an important role in the development of
insulin resistance As fat accumulates the adipose tissue
undergoes a remodeling process that promotes local
inflammation A significant proportion of cells (up to 40) in the
visceral adipose tissue of obese patients with diabetes mellitus
consist of infiltrating immune cells chiefly macrophages These
macrophages are activated and have a pro-inflammatory
(M1) phenotype They secrete cytokines such as tumor
necrosis factor alpha (TNFα) and other inflammation mediators
that induce a state of chronic low-grade inflammation in the
adipose tissue (6) These mediators not only induce the
infiltration of more immune cells into the adipose tissue but
also re-program the adipocytes to stimulate fat breakdown a
process called lipolysis Consequently lipids stored as
triglycerides are broken down to release free fatty acids (FFA)
A number of studies have directly implicated increased blood
FFA in mediating resistance to the actions of insulin in tissues like
the skeletal muscle and the liver (78) Insulin is the chief
hormone that inhibits lipolysis in the adipose tissue Therefore
the development of insulin resistance under these
circumstances contributes to a vicious cycle where lipolysis
induces insulin resistance which in turn exacerbates lipolysis
The adipose tissue secretes a large number of hormones
(called adipokines) that can greatly influence metabolism and
nutrient homeostasis Among these adiponectin and leptin
have been extensively investigated Adiponectin has anti-
diabetic effects and increases insulin sensitivity in the liver and
muscle Leptin on the other hand modulates energy
homeostasis by regulating food intake and energy
expenditure More adipokines such as resistin and visfatin
have been discovered more recently
12
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
Their roles in the pathogenesis of insulin resistance are currently
being investigated (9) Adipose tissue inflammation can
modulate the synthesis and secretion of these adipokines
possibly mediating at least in part the effects of adipose tissue
inflammation on insulin sensitivity in the liver and muscle (10)
Insulin resistance and obesity are also associated with
changes in iron homeostasis in the body especially in the
adipose tissue A number of large epidemiological studies
have documented the observation that raised serum ferritin
levels are consistently associated with an increased risk of
developing diabetes mellitus (11) Serum ferritin levels are often
used as an indicator of body iron stores however high levels
are also associated with inflammatory conditions It is not
clearly known whether the raised ferritin levels seen in
association with insulin resistance is caused by increased body
iron stores or due to the inflammation associated with obesity
Nevertheless there is evidence to suggest that increased body
iron stores play a role in the pathogenesis of insulin resistance
(1213) Increased iron levels in adipocytes have been shown
to induce insulin resistance by initiating local inflammation and
modulating the secretion of adipokines especially adiponectin
(14) The yet to be published findings from my research funded
by the India Alliance show that increased intracellular iron can
directly inhibit insulin signaling and induce insulin resistance in
hepatocytes The current research in my laboratory is aimed at
systematically documenting the changes in iron homeostasis
that accompanies development of insulin resistance The
ultimate aim of these studies is to understand the role played
by iron in initiating andor exacerbating insulin resistance
associated with obesity
The way forward for research in this area is to identify
mechanisms that trigger inflammation in the adipose tissue in
obese individuals Drugs that inhibit lipolysis may preserve
insulin sensitivity at the cost of increasing body weight
Mechanisms that can decrease free fatty acid (FFA) levels are
also likely to improve insulin sensitivity Aerobic exercise
reduces body weight and also increases the ability of the body
to use free fatty acids as a source of energy thus decreasing
its levels in the blood These events may underlie the well-
known phenomenon of improved insulin sensitivity with
exercise
In conclusion adipose tissue metabolism and its role in
regulating nutrient homeostasis may have a central role to
play in the pathogenesis of insulin resistance and diabetes
mellitus Therapeutic modalities that are aimed at ameliorating
adipose tissue inflammation andor inhibiting lipolysis may be
promising new drug targets to help fight the obesity and
diabetes epidemics
References 1 Johnson AMF Olefsky JM The origins and drivers of insulin resistance
Cell 2013 Feb 14152(4)673ndash84
2 WHO | Obesity [Internet] [cited 2015 Jun 27] Available from
httpwwwwhointghoncdrisk_factorsobesity_texten
3 Twig G Afek A Derazne E Tzur D Cukierman-Yaffe T Gerstein HC et
al Diabetes risk among overweight and obese metabolically healthy
young adults Diabetes Care 2014 Nov37(11)2989ndash95
4 Primeau V Coderre L Karelis AD Brochu M Lavoie M-E Messier V et
al Characterizing the profile of obese patients who are metabolically
healthy Int J Obes (Lond) 2011 Jul35(7)971ndash81
5 Wickremesekera K Miller G Naotunne TD Knowles G Stubbs RS Loss of
insulin resistance after Roux-en-Y gastric bypass surgery a time course
study Obes Surg 2005 Apr15(4)474ndash81
6 Xu H Barnes GT Yang Q Tan G Yang D Chou CJ et al Chronic
inflammation in fat plays a crucial role in the development of obesity-
related insulin resistance J Clin Invest 2003 Dec112(12)1821ndash30
7 Perry RJ Camporez J-PG Kursawe R Titchenell PM Zhang D Perry CJ
et al Hepatic acetyl CoA links adipose tissue inflammation to hepatic
insulin resistance and type 2 diabetes Cell 2015 Feb 12160(4)745ndash58
8 Rachek LI Free fatty acids and skeletal muscle insulin resistance Prog
Mol Biol Transl Sci 2014121267ndash92
9 Antuna-Puente B Feve B Fellahi S Bastard J-P Adipokines the missing
link between insulin resistance and obesity Diabetes Metab 2008
Feb34(1)2ndash11
10 Ohashi K Yuasa D Shibata R Murohara T Ouchi N Adiponectin as a
Target in Obesity-related Inflammatory State Endocr Metab Immune
Disord Drug Targets 201515(2)145ndash50
11 Simcox JA McClain DA Iron and Diabetes Risk Cell Metabolism 2013
Mar 517(3)329ndash41
12 Jiang R Manson JE Meigs JB Ma J Rifai N Hu FB Body iron stores in
relation to risk of type 2 diabetes in apparently healthy women JAMA
2004 Feb 11291(6)711ndash7
13 Fernaacutendez-Real JM Pentildearroja G Castro A Garciacutea-Bragado F
Hernaacutendez-Aguado I Ricart W Blood letting in high-ferritin type 2
diabetes effects on insulin sensitivity and beta-cell function Diabetes
2002 Apr51(4)1000ndash4
14 Gabrielsen JS Gao Y Simcox JA Huang J Thorup D Jones D et al
Adipocyte iron regulates adiponectin and insulin sensitivity J Clin Invest
2012 Oct 1122(10)3529ndash40
Dr Joe Varghese is Wellcome
TrustDBT India Alliance Early Career Fellow based at CMC Vellore He is involved in studies on dysregulation of iron metabolism associated with alcoholic liver disease and insulin resistance Apart from research he has special interest in teaching undergraduate and post-graduate students basics of ethical academic research writing Find out more about his research here
Image Credit David GregoryampDebbie Marshall Wellcome Images
Adipose tissue close-up showing adipocytes SEM Scanning electron
micrograph of adipose tissue showing adipocytes Computer-coloured
orange Scanning electron micrograph 2003
FEATURE ARTICLE
Inflamed fat cells and insulin resistance unraveling the physiological underpinnings of the epidemic
13
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
IN CONVERSATION WITH
Prof Shankar Balasubramanian
Professor Shankar Balasubramanian is the Herchel Smith Professor of Medicinal Chemistry at
University of Cambridge co-inventor of a genome sequencing technology and co-founder of
Solexa His research is focused on elucidating the chemistry structure and function of DNA and
RNA He was the fourth and last speaker of our DNA70 Public Lecture series
DNA Quadruplex Model Credit Prof Balasubramanian
Could you briefly take us through your scientific journey so far
I studied Natural Sciences as an Undergraduate in Cambridge
University (1985-88) Whilst I ultimately specialised in chemistry
this broad science curriculum helped stimulate my interests
throughout the sciences I pursued a PhD in Cambridge (1988-
1991) under the supervision of Chris Abell in which I studied
the chemical reaction mechanism of an enzyme in detail I
then pursued a postdoc in the lab of Stephen Benkovic at the
Pennsylvania State University (1991-1993) This was a
stimulating interdisciplinary laboratory where I learned to
combine chemistry molecular biology and physical methods
to study the structure and function of several medically
important enzymes I began my independent research career
in 1994 in the Department of Chemistry Cambridge University
initially working on solid phase organic synthesis before moving
onto the study of nucleic acids chemistry and biology It was
during the course of fundamental single molecule
fluorescence experiments on the synthesis of DNA by a DNA
polymerase that my collaborator David Klenerman and I
conceived the ideas that ultimately led to Solexa sequencing
that we commercialised via our start-up company Solexa
formed in 1998 For the last decade or so my lab has focused
on discovering and elucidating dynamic structural and
chemical features that naturally occur in DNA andor RNA
such as G-quadruplex structures and covalent base
modifications I believe there is much that remains to be
discovered and understood about the structure(s) chemistry
and function(s) of nucleic acids This is what I will be continuing
to pursue in my research over the next decade
If you were not a scientist you would be
I actually wanted to be a professional footballer until I was17
and turned to science (I didnt make the cut with football)
Potential of genome sequencing technologies in tackling human health issues is immense but what do you see as the real challenges in this field
There are challenges in the adoption of genomic approaches
to human health Some of these will require a change in
culture both in society and in the way we practice
medicine Whilst there are emerging examples of how
genomic sequencing has provided important and sometimes
actionable insights in clinical cases in rare genetic disorders or
certain cancer sub-types population scale sequencing in
clinical settings is required to fully unlock and understand the
potential of genomic medicine As population scale
sequencing has really only just begun we need to allow at
least another decade and resist passing judgment on what is
possible prematurely There is also a need to build the
information architecture to optimally link genomic information
with clinical information (immediate and longitudinal) in a form
that is of practical use to drug discovererdevelopers and
ultimately doctors and their patients
What is the best advice you have ever received
Pursue your own path
Your message for young students and researchers
Seek out and address questions that may provide interesting
and important insights Only work on something that you find
highly stimulating
Find out more about Prof Balasubramanianrsquos research here
14
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
VIEWPOINT
What is good science and when do you know yoursquore doing it DR ARUN SRIPATI Intermediate Fellow
It has no doubt been extremely challenging to start a new
lab but I find myself surprised to admit that the external
challenges pale before a rather perplexing inner question
what is good science and when do you know yoursquore doing it
The question is rather perplexing because there are a
bewildering number of proxy answers which have gained
great traction with peers and funding agencies alike Consider
a few youlsquore doing good science if (1) you are publishing in
Nature and Science (2) your work has a high impact factor
(3) you are successful in getting grants (4) you have lots of
students and post-docs While successful scientists often qualify
on all these counts the reverse is not true qualifying on these
counts does not guarantee that you are doing good science
We all know spectacular examples from this category but at
the same time it is hard to resist measuring ourselves using
these criteria
But leave aside these proxy answers This question is
perplexing at a more fundamental level As an independent
investigator you become aware of several open scientific
problems from which you choose a few to work on given your
resources and expertise For a few problems you immediately
know their worth But most of them are hard to assess ndash will your
results be important or incremental Will your experiments
reveal something novel or will they always be hypothesis-
driven Are your experiments addressing important questions in
the field It is very easy to be deluded into thinking that your
experiments are the most important ones Separating truth
from self-delusion can be extremely hard - and this is the sort of
crucial feedback and mentoring missing in the system for
younger investigators
I have had the good fortune of working with or knowing
several excellent scientists They have wholeheartedly gone
after whatever questions they found interesting without regard
to importance Very frequently they do not fulfill the proxy
criteria but they are highly regarded by their peers They are
excellent teachers They remain focused on their science
despite all the distractions that are part and parcel of the job
They are devoted to the pursuit of the truth But above all their
defining characteristic is that they approach science with a
child-like enthusiasm and wonder I was once at a lunch table
with the eminent neuroscientist Vernon Mountcastle who was
then in his nineties He grasped a paper cup with his hands
and marveled at how our hand senses the weight of the cup
and lifts it with just the right amount of force It was
immediately clear why he was such a great scientist
Perhaps these internal qualities do not guarantee that you
are doing good science just like the external criteria do not
but there is one important difference Achieving single-minded
concentration child-like wonder and the pursuit of truth
without regard to its consequences are almost spiritual qualities
that seem as close to a guarantee as anything that you will do
good science Plus for free they give you an inner peace in a
way that no impact factor can
Dr Arun Sripati is Wellcome TrustDBT
India Alliance Intermediate Fellow based at the Indian Institute of Science Bangalore Visit his lab website to find out about his research
15
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
Dr Dipanwita Sengupta is one of the senior members in the grants team who joined this organisation in June 2012 as a Grants Adviser Since then Dipanwita has been juggling various grants-related responsibilities and outreach activities at the organisation In this interview she takes us through her childhood days her interest in music finding inspiration in prominent Bengali figures and more
INDIA ALLIANCE STAFF CORNER
DR DIPANWITA SENGUPTA Grants Adviser
Image credit wwwrabindrasangeetorg
16
What is your background
My ancestors were affected by the partition of Bengal With
the inspiring stories of their struggle to re-establish themselves
starting from nothing my childhood possession included a
photograph of my grandparents with other family members in
front of the ancestral house which I could never visit I grew up
in a small town in West Bengal My father worked in the steel
plant in Durgapur and we lived in the industrial township
Looking back I remember that caring for puppies of stray dogs
was the most favourite game between my younger sister and
me When it was time to look for courses in colleges I found
very limited opportunity there but influenced by a few friends
travelled across the country to study in Maharashtra I stayed in
Aurangabad for 5 years to complete by BSc and MSc in
Microbiology Soon after completing my masters I started
applying for PhD positions and got a call from Professor S K Sen
of IIT Kharagpur I visited his laboratory and subsequently joined
his group The project was based on a fermentation
technology and I was happy to be surrounded with plates of a
lot of colourful and some not so colourful bacterial colonies
and biochemical assays I went to Virginia Commonwealth
University for my postdoctoral studies The host pathogen
relationship of a dental pathogen and a diverse environment
and culture are some cherishing lessons of my life I also
worked at the Centre for Cellular and Molecular Biology
Hyderabad for some time before joining the India Alliance as a
Grants Adviser
How has your India Alliance journey been so far
I feel that the best part about working at the India Alliance is
being able to be in touch with a small but brilliant team every
day and having the opportunity to meet some renowned
scientists who are associated with the organisation either as a
Committee member or a Fellow As a team we share work we
share jokes and we also share interesting news in science The
transition from a research laboratory to the position of a Grants
Adviser was not very smooth for me This organisation and its
people have been with me through this important phase of my
life
When not busy on the job what do you enjoy doing
If this question was asked a year before I would have said
music and reading Bengali literature These days when not
busy being a Grants Adviser I am busy playing with my little
daughter Dripta She has somehow overshadowed all my
other likings and keeps me occupied completely At the end
of the day I feel happy content and of course very tired
During my childhood every evening music classes were held
at our home In addition to being a great home-maker my
mother spent many years receiving training in and teaching
Rabindra Sangeet and Hindustani classical music Though I was
forced to get formal training I did not involve myself seriously
at that time I thought that it would be wise to choose
academics and not waste my time practising music But it was
only when I went to college that I realised that you can make
quite a lot of admiring friends and connect with many people
through music My hobbies include listening to soothing
melodies accompanying my husband in his culinary
adventures and spending time with our friends
Who inspires you (living or dead)
Itlsquos a long list In addition to my parents and my little one I am
inspired by Netaji Subhash Chandra Bose and Rabindranath
Tagore
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
EXTERNAL EVENTS
India Session at 6th EMBO meeting 2015 Birmingham UK 5-8 September 2015 The India Alliance is organising a joint session in association with IndiaBioscience at the 6th EMBO meeting 2015 Birmingham UK on 7th September 2015 If you are planning to attend this meeting please join us at the India Session Life Sciences opportunities in India to find out about setting up your laboratory in India or moving to India for a post-doc
We are offering travel awards to attend the EMBO meeting
These awards are available to PhD students Postdocs and Young Investigators to cover travel expenses To qualify for the travel award an applicant must be an Indian national based in India or Europe and heshe must be the first author on the abstract To apply click here Deadline for submitting applications is 15 July 2015
17th International Congress on Infectious Diseases Hyderabad India 2-5 March 2016
The 17th ICID will encompass all of the fields of infectious diseases with particular attention being paid to the major challenges of the region including AIDS malaria tuberculosis pneumonia and enteric infections including typhoid fever and diarrhea In addition major areas of neglected tropical diseases will be discussed and there
will be a particular focus on disease prevention and vaccination One of the things that distinguishes ISID meetings is the unique blend of state-of-the-art scientific presentations that encompass both basic science and clinical practice delivered by a truly international faculty who uniquely have the hands on experience and knowledge of the conditions that they discuss The ISID meetings are also notable for their representation from an extraordinarily wide range of countries and the opportunity for close exchange and communication between the most senior and more junior colleagues httpwwwisidorgicidindexshtml
17
Please send your feedback suggestions and contributions to
publicengagementwellcomedbtorg
Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description
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Follow us on
As a part of Workshop Series 2015-2016lsquo IIPH-D is inviting applications for the following workshops Title Leadership in Health and Development Sectors Date July 21 ndash 24 2015 Last date of registration July 15 2015 Title Workshop on Data Management using CSPro Date July 28 - 31 2015 Last date of registration July 14 2015 Title Effective Behaviour Change Communication Strategies in Public Health Date August 3 - 7 2015 Last date of registration July 20 2015
Title Nutritional Management of Children with Severe Acute Malnutrition (SAM) Date August 17 - 21 2015 Last date of registration August 3 2015 Title Economic Evaluation of Health Care Programmes Date August 25 - 28 2015 Last date of registration August 11 2015
To view complete brochure click here-Workshop Series 2015-2016 (IIPH- Delhi)
EXTERNAL EVENTS
18
Cover image in this issue Great Tit (Parus
major) widely distributed in India
Image credit Dr Farah Ishtiaq
Erratum Cover and issue image in May 2015 issue showed
immunohistochemical staining in prostate cancer tissue for SPINK1
and not ERG as was mentioned in its description