University of Bologna Dr. Laura Mercolini Mentor and Professor Laboratory of Pharmaco-Toxicological...
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- Slide 1
- University of Bologna Dr. Laura Mercolini Mentor and Professor
Laboratory of Pharmaco-Toxicological Analysis; Department of
Pharmacy & Biotechnology (FaBiT), Alma Mater Studiorum -
University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy. VA
Long Beach Healthcare System Chris Reist, MD, MBA, ACOS Program
Director, Associate Chief of Staff (Research & Development)
5901 East 7th Street, Long Beach, CA 90822 (562) 826-8000 Ext. 5801
Filippo Martini Intern
- Slide 2
- Mental Health Research Internship Program VA Long Beach
Healthcare System Chris Reist, MD, MBA, ACOS Associate Chief of
Staff (Research & Development) 5901 East 7th Street, Long
Beach, CA 90822 (562) 826-8000 Ext. 5801
- Slide 3
- Program Objectives The goal of the mental health internship
program is the identification, characterization and validation of
Biomarkers / Bio-signature for the foremost mental disorders (i.e.
Major Depression - MD, Posttraumatic stress disorder - PTSD), that
would facilitate: 1. correct prediction of mental health disease
risk, 2. therapeutic responses, and 3. ultimately lead to
information-based diagnosis for preventive and treatment plans of
mental health illness..
- Slide 4
- Clinical Research Trials Observe, experience and understand the
mental health clinical research trial processes, techniques, safety
and security and privacy requirements Report write up Create Power
Points and present 1)Enhancing Exposure Therapy for Post- Traumatic
Stress Disorder (PTSD): Virtual Reality and Imaginal Exposure With
a Cognitive Enhancer. 2)VA Augmentation or Switching Treatment for
Improving Depression Outcomes (VAST-D)
- Slide 5
- Clinical Research Trials Comments: Observed but were not able
to participate due to strict Federal Regulation law Health
Insurance Portability and Accountability Act of 1996 (HIPAA). Only
individuals whose names are on the approved Clinical trial study
are allowed to have direct involvement (i.e. interviews, collect,
evaluate, with the patients. I was only able to review the clinical
trials write up
- Slide 6
- Biomarker Laboratory Research Hands on operation of scientific
instruments and performed Experiments used in the lab for detection
and interpretation of research data Methods used in Cancer
biomarker research Laboratory Include: 1) Cell Culture 2) Sample
Collection and Preparation 3) mRNA purification 4) real time PCR,
5) Western blot 6) Flow Cytometry 7) ELISA
- Slide 7
- Biomarker Laboratory Research Correlative Clinical Studies
& Development of Biomarkers from the Acute Effects of
Psychotropic Drug Using Cancer Cells Model Presentation on Nov 25,
2014 can be access on www.scire-lb.org
www.scire-lb.orgPresentation
- Slide 8
- Research Activities Attended two Lecturer seminars, and
Presented 3 presentations Discuss the strategies for developing
test for mental disorders, from the bench to bedside approaches and
applications for detecting, treating, and preventing mental health
disorders
- Slide 9
- Summary Gave three presentations: two Mental Health Clinical
Research Trial and one Biomarkers Research Laboratory Presentation
Attended Two Distinguish Lecturer Series Perform Pub med medical
database subject search and reference Contributed to two
manuscripts
- Slide 10
- Manuscript Fascin-1 knock-down of human glioma cells reduces
their microvilli/filopodia while improving their susceptibility to
lymphocyte- mediated cytotoxicity Neil T. Hoa 1, Lisheng Ge 1, Kate
L. Erickson 2, Carol A. Kruse 2, Andrew N. Cornforth 3, Yurii
Kuznetsov 4, Alex McPherson 4, Filippo Martini 1,7, Martin R. Jadus
1,5,6,* 1 Research Health Care Group, Veterans Affairs Medical
Center Long Beach, CA 9082, USA; 2 Department of Neurosurgery,
David Geffen School of Medicine, University of California, Los
Angeles, Los Angeles, CA 90095, USA; 3 California Stem Cells, Inc.
18301 Von Karman Avenue, Irvine, CA 92612, USA; 4 Molecular Biology
and Biochemistry, University of California, Irvine, Irvine, CA
92697, USA; 5 Pathology and Laboratory Medicine Service, Veterans
Affairs Medical Center, Long Beach, CA 90822, USA; 6 Department of
Pathology and Laboratory Medicine, University of California,
Irvine. Orange, CA 92868, USA; 7 Laboratory of
Pharmaco-Toxicological Analysis; Department of Pharmacy &
Biotechnology (FaBiT), Alma Mater Studiorum - University of
Bologna, Via Belmeloro 6, 40126 Bologna, Italy. The tracking number
for this manuscript is AJTR0003859 NOVEMBER 14, 2014
- Slide 11
- Manuscript Temozolomide induces the expression of the glioma
Big Potassium (gBK) ion channel, while inhibiting fascin-1
expression: A possible synergistic target for glioma immunotherapy.
Neil T. Hoa 1, Lisheng Ge 1, Filippo Martini 1, 2, Vincent Chau 1,
Amrita Ahluwalia 1, Carol A. Kruse 3, and Martin R. Jadus 1,4,5,6
1. VA Long Beach Healthcare System, Research Health Care Group,
Veterans Affairs Medical Center, Long Beach, CA 90822. 2.
Laboratory of Pharmaco-Toxicological Analysis; Department of
Pharmacy & Biotechnology (FaBiT), Alma Mater Studiorum -
University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy. 3.
Department of Neurosurgery, David Geffen School of Medicine,
University of California, Los Angeles, Los Angeles, CA 90095. 4.
Pathology and Laboratory Medicine Service, Veterans Affairs Medical
Center, Long Beach, CA 90822. 5. Department of Pathology and
Laboratory Medicine, University of California, Irvine. Orange, CA
92868. 6. Chao Comprehensive Cancer Center, University of
California, Irvine. Orange, CA 92868. Manuscript in preparation for
submission to Neuro Oncology for December 15, 2014
- Slide 12
- Filippo Martini Dr. Laura Mercolini Professor & Mentor
Laboratory of Pharmaco-Toxicological Analysis; Department of
Pharmacy & Biotechnology (FaBiT), Alma Mater Studiorum -
University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
- Slide 13
- Presentation Outline I. Mental health illness and Cancer
Relationship: Overview II. Psychotropic drugs III.
Biomarkers/Targets To Define Biomarker To Design appropriated
studies Roles of biomarkers in phase I, II, and III studies IV.
Laboratory methods used in biomarker research Sample types Gene
Analysis Real time-PCR (mRNA) Protein Analysis Flow Cytometry ELISA
Assay Western Blot V. Conclusion
- Slide 14
- Introduction Psychiatric diseases are chronic, recurrent and
have a complex etiology and particularly vulnerable to the
environmental factors (i.e. stress) Very little understanding of
the underlying disease process Have very few animal models that
have the validity to predict clinical efficacy The effects of
psychiatric drugs on the Biochemical Modulation of Target, Target
Pathway, and the Biological/Cellular Response of the target are not
well studied
- Slide 15
- Introduction patients clinical history symptom checklists
patient self-reports. The current treatment of Psychiatric
diseases, such as depression, and post-traumatic stress disorder
(PTSD) is established based on a patients clinical history, mental
status examination, duration of symptoms, and clinician
administered symptom checklists or patient self-reports. (not a
reliable means of measures) Unlike cancer management, markers and
laboratory tests are not available for the detection, diagnosis,
prevention and treatment of Psychiatric diseases.
- Slide 16
- Clinical Trials Diagram Psychotropic Drugs
AripiprazoleAripiprazole Bupropion-SRBupropion-SR
SertralineSertraline Mechanism of Drugs effect on biological
markers/targets that correlated with effective treatment outcomes,
a correlative studies.
- Slide 17
- The Drugs Psychotropic Drugs Aripiprazole (Abilify): A second
generation, or "atypical" antipsychotics developed in the 1990s and
used to treat schizophrenia and schizophrenia-related disorders.
Side effects: weight gain, metabolic disease, diabetes, and high
cholesterol.Aripiprazole (Abilify): A second generation, or
"atypical" antipsychotics developed in the 1990s and used to treat
schizophrenia and schizophrenia-related disorders. Side effects:
weight gain, metabolic disease, diabetes, and high cholesterol.
Antidepressants work to balance neurotransmitters such as
serotonin, norepinephrine, and dopamine in the brain. Have less
side effects. Sertraline (Zoloft) is AKA selective serotonin
reuptake inhibitors (SSRIs) specific to serotonin. (The happy
pill)Sertraline (Zoloft) is AKA selective serotonin reuptake
inhibitors (SSRIs) specific to serotonin. (The happy pill)
Bupropion-SR is serotonin and norepinephrine reuptake inhibitors
(SNRIs).Bupropion-SR is serotonin and norepinephrine reuptake
inhibitors (SNRIs).
- Slide 18
- Cancer Glioblastomas (GBM) are tumors (AKA glioma) that arise
from astrocytesthe star- shaped cells that make up the glue-like,
or supportive tissue of the brain. Late detection Quick Death
Mental Health Serious mental illnesses include Major Depression,
schizophrenia, bipolar disorder, obsessive compulsive disorder
(OCD), panic disorder, posttraumatic stress disorder (PTSD) and
borderline personality disorder. Early detection Slower Death
- Slide 19
- Similar Causes CANCER Immune System Metabolism Inflammatory
Response Stress MENTAL Health
- Slide 20
- Chronic Inflammation Major Depressive Disorder Stress PTSD
- Slide 21
- Mental Illness Risk Factors: Genetics (parent or sibling);
Exposure to viruses, toxins, drugs or alcohol during pregnancy.
Overweight, Stressful life situations, (financial, death, divorce)
A chronic medical condition, such as cancer. Traumatic brain injury
(TBI), such as Traumatic experiences, (PTSD).Use of illegal
substances Cancer Risk Factors: Genetics, aging, tobacco, sun
exposure, radiation exposure, chemicals and other substances, some
viruses and bacteria, certain hormones, family history of cancer,
alcohol, poor diet, lack of physical activity, or being
overweight.
- Slide 22
- Stress Perception Stress A PHYSIOLOGICAL RESPONSE Chronic
Inflammation
- Slide 23
- Morimoto R I Genes Dev. 2008;22:1427-1438 Copyright 2008, Cold
Spring Harbor Laboratory Press CANCER Stress
- Slide 24
- Induced Cellular Insulin Resistance An In-vitro Depression
Model Palmitic Acid- induced insulin resistance in astrocytes to
study targets effected by the Drugs using cell model
- Slide 25
- What is a Biomarker/Target? Biomarker - A characteristic that
is objectively measured and evaluated as an indicator of normal
biologic processes, pathogenic processes, or pharmacologic
responses to a therapeutic intervention Biomarkers Definitions
working Group National Institutes of Health 2001 Assay - A method
for determining the presence or quantity of a component (PCR,
ELISA, Western Blot, Flow Cytometry) Test - A procedure that makes
use of an assay for a particular purpose Good biomarkers Good
Assays Tests
- Slide 26
- The Biomarkers development process
- Slide 27
- Types of Clinical Biomarkers Pre- diagnosis Pre- treatment
Intra- treatment Post- treatment RiskRisk ScreeningScreening Early
detectionEarly detection Early response or futilityEarly response
or futility Toxicity monitoringToxicity monitoring
ConfirmationConfirmation StagingStaging SubtypingSubtyping
Treatment Diagnosis Therapeutic Drug Monitoring P11 BLOOD SERUM gBK
CELLSCELLS Phase 1 Phase 2 PrognosticPrognostic
PredictivePredictive Early endpointEarly endpoint Recurrence/
progression monitoringRecurrence/ progression monitoring Depression
Sertraline Metabolites ?
- Slide 28
- Glioma Large conductance calcium-activated potassium channels
(gBK) a possible target for Psychiatric Drug Effects Laboratory
methods used in cancer research for assay development for biomarker
of psychiatric disorders Why gBK? Because it is a candidate for
brain cancer biomarker 1.Study of postmortem brain in suicide
individual suffered from major depression shows low level of BK
large conductance calcium-activated potassium channel expression
compare to normal. 2.Neurochem Res. 2014 May;39(5):901-10. doi:
10.1007/s11064-014-1287- 1. Epub 2014 Mar 26. Large conductance
calcium-activated potassium channels: their expression and
modulation of glutamate release from nerve terminals isolated from
rat trigeminal caudal nucleus and cerebral cortex. Samengo I1, Curr
D, Barrese V, Taglialatela M, Martire M.
- Slide 29
- Modeling Depression with Insulin Resistance Palmitic
Acid-induced Insulin in Glioma Cell Line U251 and in-vitro model
This will simulate cells in the depressed individuals
- Slide 30
- NORMALCANCERInsulin Resistance + Cancer Proinflammatory
Cytokines (IL-6 and TNF-)
- Slide 31
- Stress activates the hypothalamic-pituitary-adrenal (HPA) axis,
releasing ACTH from the anterior pituitary gland and Glucocorticoid
from the adrenal cortex. Stress also activates the sympathetic
nervous system, evoking adrenaline release from the adrenal
medulla. Large- conductance calcium- and voltage-activated
potassium (BK) channels have been implicated in regulation of
cellular excitability in these systems. . These results support an
important role for BK channels in both the neural circuitry and
endocrine output of the HPA axis and indicate that the stress
hyporesponsiveness in BK(-/-) mice primarily results from reduced
activation of hypothalamic PVN neurosecretory neurons. BK channels
in both the neural circuitry and endocrine output of the HPA
axis
- Slide 32
- gBK is BK Glioma large conductance calcium-activated potassium
channels (gBK) is highly expressed in cancer cells and function for
ionic balance and modulate the release of neurotransmitters. gBK
form has the extra three putative sites which allow more
interactions and increase responsiveness SI-S4 S5-S6 P11 ?
- Slide 33
- The p11 protein is linked with the transport of
neurotransmitters. Found in the brain of humans and other mammals,
it has been implicated in the regulation of mood. In addition, due
to its interaction with serotonin-signaling proteins and its
correlation with symptoms of mood disorders, p11 is a new potential
target for drug therapy. P11 gBK
- Slide 34
- Pathways by which P11 mediates behavioral responses to
antidepressants diagram Non-Insulin Resistance model
- Slide 35
- Methods: Cell Culture RT-PCR FACS/Flow Cytometry Western Blot
ELISA Methods Used in the Laboratory Materials: Human Glioma Cell
line U-251 Aripiprazole Bupropion-SR Sertraline Palmitic Acid TNF-
antibody P11 (AKA: S100A10) antibody gBK Antibody IL-6
antibody
- Slide 36
- Cell Culture Biological Safety Cabinet: Personal Protection and
prevent contamination of Cells Culture Liquid Nitrogen Cryogenic
storage at very cold temperatures is presumed to provide an
indefinite longevity to cells
- Slide 37
- Purpose = grow cells outside of body Initially cells are
attached in T75 flask Media: DMEM (Dulbecco Modified Eagle Medium)
Conditions: Insulin Resistance (IR) inductions 24hrs with Palmitic
Acid then add the drugs 24 hrs, harvest cells for Assays. Images
courtesy of Judy Shon- 2012 Summer Scholar Methods: Cell Culture
Aripiprazole (10M) Bupropion (300M)Sertraline (5M) U251
IR-Control
- Slide 38
- Real time - Polymerase Chain Reaction (Rt-PCR)
- Slide 39
- Method #1: Polymerase Chain Reaction (PCR) By enabling the use
of DNA Polymerase on the DNA sample, the polymerase chain reaction
technique synthesizes new complementary DNA strands and amplifies
the sample up to millions of times.
- Slide 40
- Real-Time qRT-PCR Real-Time quantitative Reverse Transcription
(qRT) polymerase chain reaction (PCR) enables detection and
measurement of products generated during each cycle of PCR process
Introduction of an oligonucleotide probe which was designed to
hybridize within the target sequence. The Primers were synthesized
by Operon Biotech (Germantown, MD). The sequences were: gBK Forward
: 5'-CGTTGGGAAGAACATTGTTC -3'; gBK Reverse: 5'- AACTGGCTCGGTCACAAG
-3'; The relative quantification of expression of the gene was
determined by 2-CT
- Slide 41
- 1.ISOLATION of mRNA 2.QUANTIFICATION of mRNA 3.cDNA Synthesis
Preparation sample for PCR run Polymerase Chain Reaction (PCR)
- Slide 42
- Denaturation of the DNA template (no fluo), SYBR Green
molecules are free in the reaction mix (95C for 10- 15 minutes)
Primers anneal and SYBR Green molecules bind to the single stranded
cDNA DNA polymerase elongates the template and more SYBR Green
molecules bind to the product formed resulting in exponential
increase in the fluorescence level Polymerase Chain Reaction
(PCR)
- Slide 43
- RELATIVE QUANTIFICATION of mRNA Compared to the values of
threshold cycle, ie the number of cycles required so that the
fluorescence signal may become significant compared to the
background. The genic expression quantification is assessed by the
fold change method( 2-CT ) Using an endogenous control (18s) is
possible to normalize the amount of starting RNA, ie means to
calculate CT for each sample: CT= Ct target gene - Ct endogenous
control Its necessary to define a calibrator, ie a control sample
(no treated) that will be used to compare the other samples; this
is equivalent to calculating the CT= CT sample - CT calibrator The
relative quantification RQ = 2-CT ; this parameter tells us how
many times the gene is more expressed in the sample with respect to
the endogenous control Polymerase Chain Reaction (PCR)
- Slide 44
- In normal environment the cells didnt show a such as relevant
changing of gBK expression Meanwhile a significant increase in the
expression of GBK cells insulin resistant if normalized with the
normal environment Polymerase Chain Reaction (PCR)
- Slide 45
- Flow Cytometry is a rapid way to measure the characteristics of
individual cells. Hematopoietic cells (blood, bone marrow aspirate,
lymph nodes, etc.) Methods: Flow Cytometry/FACS Analysis Routinely
used in the diagnosis of health disorders, we used it in the lab to
analyze protein expression Cell Quest Pro takes the readings from
the machine and forms it into numerical data and graphs. Readings
use 10,000 cells each
- Slide 46
- 1x106 cells per 100 l sample ice cold Wash with PBS 0.2% Tween
20 3 times centrifuge 400 g for 5 min Incubate with fluorochrome
conjugated primary antibody (direct method) 15 to 45 min 4C in the
dark 0.1-10 g antibody/ml Fix: (optional) Add 100 l fixative (4%
PFA), Wash in PBS 0.2% Tween 20 3 times centrifuge 400 g for 5
minute, Resuspend to 500 l PBS, Store at 4C until analysis (within
24hr) Staining Cells for FACS Analysis
- Slide 47
- Cells flow single file in a stream of fluid Measures multiple
characteristics of each cell 10,000 cells are analyzed per reading
Flow Cytometry how it works
- Slide 48
- In glioma cell line, insulin resistance U251 has lower
expression of gBK compared to normal U251 baseline expression.
Treatment of Psychotropic Drugs increases gBK expression. Results:
gBK Flow Cytometry Analysis Aripiprazole BupropionSertraline U251 =
human glioma Cell IR = Insulin Resistance A = Aripiprazole (10M) B
= Bupropion (300M) S = Sertraline (5M)
- Slide 49
- Results: P11 Flow Cytometry Analysis P11 In glioma cell line,
insulin resistance (IR) U251 has lower expression of P11 than
normal U251 baseline expression. Treatment of Psychotropic Drugs
increases P11 expression. U251 = human glioma Cell IR = Insulin
Resistance A = Aripiprazole (10M) B = Bupropion (300M) S =
Sertraline (5M)
- Slide 50
- Results: TNF- Flow Cytometry Analysis Glioma insulin resistance
(IR) cell line U251 has higher expression of TNF- compared to
normal U251 baseline expression. Treatment of Psychotropic Drugs
decreases the pro-inflammation cytokine TNF-. U251 = human glioma
Cell IR = Insulin Resistance A = Aripiprazole (10M) B = Bupropion
(300M) S = Sertraline (5M) TNF-
- Slide 51
- Results: IL-6 Flow Cytometry Analysis Glioma insulin resistance
(IR) U251 expresses higher level IL-6 compared to normal U251. Over
all the treatment of (IR) U251 with Psychotropic Drugs decreases
the pro-inflammation cytokine IL-6. Sertraline significantly
reduces IL-6 level compare to Aripiprazole and Bupropion. U251 =
human glioma Cell IR = Insulin Resistance A = Aripiprazole (10M) B
= Bupropion (300M) S = Sertraline (5M) IL-6
- Slide 52
- SDS-PAGE Gel percentage Proteins (-) run towards the anode (+).
Separated in pores by size
http://www.siumed.edu/~bbartholomew/course_material/protein_methods.htmhttp://www.siumed.edu/~bbartholomew/course_material/protein_methods.htm
GE Handbook: Western Blotting Principles and Methods
http://bjpsbiotech.edublogs.org/labs-activities/western-blot/ % Gel
concentration Pore Size Western Blot
- Slide 53
- SDS PAGE Transfer to membrane Incubate with antibody
http://www.bio.davidson.edu/Courses/genomics/method/Westernblot.html
Amrita Ahluwalia, Ph.D. Gastrointestinal(GI) Research Detect
antibody Western Blot
- Slide 54
- Effect of Psychotropic Drugs on gBK protein expression in
insulin resistance (IR) glioma cell line U251. Results: Western
Blot gBK -Actin 120 kDa
- Slide 55
- ELISA: Enzyme-Linked Immuno- Sorbent Assay a widely used method
for determining the presence or absence of a specific target
protein and its respective quantification.
- Slide 56
- NOVOstar- plate reader for detection of ELISA Assays Samples
graph of Standard Curve for known amount protein concentration
- Slide 57
- ELISA
- Slide 58
- (1)Plate is coated with a capture antibody; (2) sample is
added, and any antigen present binds to capture antibody; (3)
detecting antibody is added, and binds to antigen; (4)
enzyme-linked secondary antibody is added, and binds to detecting
antibody; (5) substrate is added, and is converted by enzyme to
detectable form.
- Slide 59
- ELISA APPLICATIONS Determination of serum antibody
concentrations in a virus test home pregnancy test food industry
when detecting potential food allergens toxicology as a rapid
presumptive screen for certain classes of drugs various of areas
such as Immunology, Biological Pharmacy, Diagnostic industry, and
so on.
- Slide 60
- ELISA: Results
- Slide 61
- Slide 62
- Putting it all together
- Slide 63
- Pathways by which P11 and gBK mediates behavioral responses to
antidepressants protein p11 (also known as S100A10) IL-6 TNF- P11
gBK CELL MIGRATION AND PROLIFERATION
- Slide 64
- Conclusion The data from FACS Analysis, RT-PCR, Western Blot,
and ELISA suggests the mechanism of the ACUTE (24-28 hours) effects
of psychotropic drugs (Aripiprazole (10M), Bupropion (300M), and
Sertraline (5M) increase the expression of both P11 and gBK, and
down regulate the pro-inflammation cytokines IL-6 and TNF-alpha in
induced insulin resistance glioma cell line (U251) in-vitro. gBK
and P11 may be a possible biomarker candidate use for mental
illness clinical trial.
- Slide 65
- Markers and Endpoints for Trials of Molecularly Targeted Agents
PharmacokineticsBlood and tissue levels Biochemical Modulation of
Target Changes in protein function/phosphorylation Biochemical
Modulation of Target Pathway Protein phosphorylation/function
Expression array Markers of Biological/Cellular Response
Proliferation, Cell cycle phase, Apoptosis, Angiogenesis,
Metabolism Clinical ResponseObjective Behavior Response Prolonged
Mental Stability Clinical BenefitHappier, better quality of life
Phase 1 Phase 2 Phase 3
- Slide 66
- Slide 67
- Note
- Slide 68
- Note