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PARA PROTEINEMIAS Sheikha

medicine.myeloma.(dr.anwar shexa)

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Page 1: medicine.myeloma.(dr.anwar shexa)

PARAPROTEINEMIAS

Sheikha

Page 2: medicine.myeloma.(dr.anwar shexa)

ProfessorAnwar SheikhaAnwar Sheikha

MD, FRCP, FRCPath., FCAP, FRCPA, FRCPI, FACP

Senior Consultant Clinical & Lab. Hematologist

Clinical Professor of HematologyUniversity of Mississippi Medical Center, Jackson,

Mississippi

Professor of Hematology, University of Salahaddin, Erbil, Kurdistan,

IRAQ

Page 3: medicine.myeloma.(dr.anwar shexa)

Sheikha

PARAPROTEINEMIAS

Page 4: medicine.myeloma.(dr.anwar shexa)

Sheikha

Page 5: medicine.myeloma.(dr.anwar shexa)

MULTIPLE MYELOMA

WALDENSTROM’S MACROGLOBULINEMIA

PRIMARY AMYLOIDOSIS

HEAVY CHAIN DISEASES

M-GUS

PARAPROTEINEMIAS

Sheikha

Page 6: medicine.myeloma.(dr.anwar shexa)

BONE PAIN#

VERTEBRAL COLLAPSELYTIC BONE LESIONS

ANEMIA

BLEEDING

INFECTION

HYPERVISCOSITY RENAL FAILURE

NEPHRO-LOGISTS

NEURO-LOGIST

ORTHOPEDIC SURGEON

HEMATOLOGIST

Sheikha

Page 7: medicine.myeloma.(dr.anwar shexa)

MULTIPLEMYELOMAMULTIPLEMYELOMA

1% of All Cancers 2% of All Cancer Deaths

Average Age ~ 65 Black: White = 2:1

Page 8: medicine.myeloma.(dr.anwar shexa)

PARAPROTEINPRODUCTION

OSTEOLYTICBONE LESIONS

BONE MARROWINFILTRATION

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 9: medicine.myeloma.(dr.anwar shexa)

BONE MARROWINFILTRATION

PANCYTOPENIA

↓ PLATELET

↓ WBC ANEMIA

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 10: medicine.myeloma.(dr.anwar shexa)

BONE MARROWINFILTRATION

PANCYTOPENIA

↓ PLATELET

↓ WBC ANEMIA

BLEEDING

INFECTION

IMMUNESUPPRESSION MULTIPLE

MYELOMA

MULTIPLEMYELOMA

Sheikha

Page 11: medicine.myeloma.(dr.anwar shexa)

BONE MARROWINFILTRATION

PANCYTOPENIA↓ WBC

INFECTION

IMMUNESUPPRESSION

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Chemotherapy myelosuppression

Steroid immunosuppression

Sheikha

Page 12: medicine.myeloma.(dr.anwar shexa)

OSTEOLYTICBONE LESIONS

BONE PAIN

VERTEBRALCOLLAPSE

BONE

#

↑ Ca++ RENAL FAILURE

ANEMIAMULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 13: medicine.myeloma.(dr.anwar shexa)

PARAPROTEINPRODUCTION

ANEMIA

HYPERVISCOSITY

CNSSYMPTOMS

HEMO-DILUTION

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 14: medicine.myeloma.(dr.anwar shexa)

PARAPROTEINPRODUCTION

BLEEDING

INTERFERENCEWITH CLOTTING

FACTORS

COATING OFPLATELETS

ANEMIA

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 15: medicine.myeloma.(dr.anwar shexa)

PARAPROTEINPRODUCTION

RENAL FAILURE

AMYLOID

LIGHT CHAINS

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 16: medicine.myeloma.(dr.anwar shexa)

RENAL FAILURE

AMYLOID

LIGHT CHAINS

?RENALFAILUREINFECTION PYELONEPHRITIS

↑ Ca++

MULTIPLEMYELOMA

MULTIPLEMYELOMA Sheikha

Page 17: medicine.myeloma.(dr.anwar shexa)

PARAPROTEININTERFERENCEWITH CLOTTING

FACTORS

PARAPROTEINCOATING OFPLATELETS

?BLEEDING

BONE MARROWINFILTRATION BLEEDING

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 18: medicine.myeloma.(dr.anwar shexa)

RENAL FAILURE

?ANEMIA

BONE MARROWINFILTRATION

BLEEDING

HEMO-DILUTION

MULTIPLEMYELOMA

MULTIPLEMYELOMA

Sheikha

Page 19: medicine.myeloma.(dr.anwar shexa)

PARAPROTEINPRODUCTION

OSTEOLYTICBONE LESIONS

BONE MARROWINFILTRATION

MULTIPLEMYELOMA

MULTIPLEMYELOMAANEMIA

BLEEDINGINFECTION

RENALFAILURE

HYPER-VISCOSITY

↑ Ca++

BONE PAIN,# & VERT.COLLAPSE

Sheikha

Page 20: medicine.myeloma.(dr.anwar shexa)

The cytoplasm of Myeloma Cells contains abundant Endoplasmic Reticulum (ER) , which may contain retained, condensed or crystallised cytoplasmic Ig producinga variety of morphologically distinctive findings, including:

Multiple pale bluish-white, grape-like accumulation Mott or Morula Cells

Cherry-red refractive round bodies Russell Bodies

Vermilion staining glycogen-rich IgA Flame Cells

Overstuffed fibrils Gaucher-like cells; thesaurocytes

&

Crystalline Rods

THESE CHANGES ARE NOT PATHOGNOMONIC FOR MM SINCE THEY MAY BE FOUND IN REACTIVE PLASMA CELLS

Page 21: medicine.myeloma.(dr.anwar shexa)

MULTIPLE MYELOMA

IgG>50%

IgA25%

LightChain20%

IgDrare

Non-Secretory

Bi-clonal

?IgM

Sheikha

Page 22: medicine.myeloma.(dr.anwar shexa)

Immunofixation

performed on serum from a patient with monoclonal

immunoglobulin Gk (IgGk)

&

a patient without a monoclonal

protein

normal

IgG k

Page 23: medicine.myeloma.(dr.anwar shexa)

PLASMA CELLS OSTEOCLASTS

OAF(IL-1/ TNF)

PDGF/ IL-6

BMSC“Bone Marrow Stromal Cells”

IL- 6

Sheikha

Page 24: medicine.myeloma.(dr.anwar shexa)

Interleukin-6-mediated myeloma cell growth

BMSC: bone marrow stromal cell IL: interleukin NF: nuclear factor TGF: transforming growth factor

MM rely on contact with BM Stromal Cells “BMSC”Adhesive interaction between MM cells & BMSC induce cells to secrete IL-6which then acts a paracrine growth factor promoting survival of MM cells &

inhibiting apoptosis

Page 25: medicine.myeloma.(dr.anwar shexa)

OAF

IL-1 β

TGF- β

OtherCytokines

Osteoclast Activation

Osteoblast Suppression

OSTEO-LYTICBONE

LESIONS

Page 26: medicine.myeloma.(dr.anwar shexa)

I<1

KgPC

II1to2

KgPC

III>2

KgPC

1 trillion PC (1012) = 1 Kg

LOWCELLMASS

<0.6 x 1012/m2

HIGHCELLMASS

>1.2 X 1012/m2

STAGING OF MYELOMASheikha

Page 27: medicine.myeloma.(dr.anwar shexa)

Stage II Overall data

minimally abnormal as shown

for stage I and no Single value

abnormal as defined

For stage III

Stage IAll of the following:

Hemoglobin value >10 g/dL

Serum calcium value normal(<12 mg/dL)

On roentgenogram, normal bone structure (scale) or solitary bone plasmacytoma only

Low monoclonal component production rates

IgG value <50 g/L

IgA value <30 g/L

Urine light chain monoclonal component onelectrophoresis <4 g/24 h

Durie-Salmon Myeloma Staging System

Stage IIIone or more of the following:

Hemoglobin value <8.5 g/L

Serum Ca value >12 mg/dL

Advanced lytic bone lesions (scale 3)

High monoclonal component production rates

IgG value >70 g/L

IgA value >50 g/L

Urine light chain monoclonal component on electrophoresis >12 g/24 h

Subclassification:

a: Relatively normal renal function (serum creatinine value <2.0 mg/dL)

b: Abnormal renal function (serum creatinine >2.0 mg/dL)

Sheikha

Page 28: medicine.myeloma.(dr.anwar shexa)

Stage II Overall data

minimally abnormal as shown

for stage I and no Single value

abnormal as defined

For stage III

Stage IAll of the following:

Hemoglobin value >10 g/dL

Serum calcium value normal(<12 mg/dL)

On roentgenogram, normal bone structure (scale) or solitary bone plasmacytoma only

Low monoclonal component production rates

IgG value <5 g/dL

IgA value <3 g/dL

Urine light chain monoclonal component onelectrophoresis <4 g/24 h

Durie-Salmon Myeloma Staging System

Stage IIIone or more of the following:

Hemoglobin value <8.5 g/L

Serum Ca value >12 mg/dL

Advanced lytic bone lesions (scale 3)

High monoclonal component production rates

IgG value >7 g/dL

IgA value >5 g/dL

Urine light chain monoclonal component on electrophoresis >12 g/24 h

Subclassification:a: Relatively normal renal function (serum creatinine value <2.0 mg/dL)

b: Abnormal renal function (serum creatinine >2.0 mg/dL)

<1

KgPC

1to2

KgPC

>2

KgPC

Sheikha

Page 29: medicine.myeloma.(dr.anwar shexa)

Criteria for Diagnosis of Multiple Myeloma

Major criteria

1. Plasmacytomas on tissue biopsy

2. Bone marrow plasmacytosis (>30% plasma cells)

3. Monoclonal immunoglobulin spike on serum electrophoresis: IgG >35 g/L or IgA >20 g/L; or light-chain excretion >1.0 g/d on 24-h urine protein electrophoresis

Minor criteria

a. Bone marrow plasmacytosis (10-30% plasma cells)

b. Monoclonal immunoglobulin spike present but of lesser magnitude than in 3

c. Lytic bone lesions

d. Normal IgM <0.50 g/L, IgA <1.00 g/L, or IgG <6.00 g/L

Any of the following sets of criteria will confirm the diagnosis:

Any two major criteria

Major criterion 1 plus minor criterion b, c, or d

Major criterion 3 plus minor criterion a or c

Minor criteria a, b, and c or a, b, and dSheikha

Page 30: medicine.myeloma.(dr.anwar shexa)

g/L mg/dLIgM 0.5 – 1.5 50 - 150

IgA 1.5 – 5.0 150 - 500

IgG 5.0 – 15.0 500-1500

Normal Ig Values

Page 31: medicine.myeloma.(dr.anwar shexa)

Feature Incidence, %Age >40 yr 98

Male 61

Bone pain 68

Anemia 62

Renal insufficiency 55

Hypercalcemia 30

Hepatomegaly 21

Splenomegaly 5

Proteinuria 88

Bence Jones proteinuria 49

Skeletal roentgenographic abnormalities 79

Spike on SEP 76

Hypogammaglobulinemia on SEP 9

Minor or no abnormalities on SEP 15

Spike on urinary protein electrophoresis 75

Monoclonal heavy chain on serum IEP 83

Monoclonal light chain on IEP 8

Nonsecretory 0.3

Amyloidosis 7

Presenting Features of Multiple Myeloma

IEP:Immuno-electro-phoresis;

SEP: Serumprotein electro-phoresis

Page 32: medicine.myeloma.(dr.anwar shexa)

Frequency of Different Types of Monoclonal Proteins Produced By Plasma Cell Tumors

Monoclonal Protein Frequency, %

IgG 52

IgA 21

IgD 2

IgE <0.01

IgM (Waldenström's) 12

Light chain only 11

Heavy chain only <1

2 or more 0.5

None detected 1

Page 33: medicine.myeloma.(dr.anwar shexa)

A. M-GUSMonoclonal Gammopathy of Unclear Significance

1. Monoclonal component level:

IgG <35 g/L IgA <20 g/L

Bence Jones protein <1.0 g/24 h

2. Bone marrow plasma cells <10%

3. No bone lesions

4. No symptoms

B. Indolent myeloma (as in A except:)

1. No bone lesions or only limited bone lesions (<3 lytic lesions); no compression fractures

2. Monoclonal component levels

a. IgG <70 g/L b. IgA <50 g/L

3. No symptoms or associated disease features

a. Performance status >70%

b. Hemoglobin >10 g/dL

c. Serum calcium normal

d. Serum creatinine <2.0 mg/dL

e. No infections

C. Smoldering myeloma (as in B except:)

1. No bone lesions

2. Bone marrow plasma cells <30%

Classification of

Monoclonal Gammopathies

Page 34: medicine.myeloma.(dr.anwar shexa)

IMMUNOPHENOTYPING OF MYELOMA CELLS

Sheikha

Myeloma cells typically express monotypic Cytoplasmic Ig & lack SmIg

MostMyeloma

CellsLack Pan-BCD19

& CD20

Markers

CD38

CD79a

NORMAL PC

MYELOMA CELL

CD19+

CD19 -

CD56/58 -

CD56/58 +

CD138

CD45 -

Page 35: medicine.myeloma.(dr.anwar shexa)

Prognostic Parameters in Multiple Myeloma

Sheikha

Β2-Microglobulin LDH

Chromosome13

abnormalities

Β2- Microglobulin

ug/mLug/mLAlbumiAlbumi

nn

g/Lg/L

MEDIAN SUVIVALMEDIAN SUVIVAL

MonthsMonths

<6 Plus <6 Plus > 30> 30 5555

>6 Plus >6 Plus > 30> 30 1919

>6 Plus >6 Plus < 30< 30 44

Page 36: medicine.myeloma.(dr.anwar shexa)

MANAGEMENT OF

MULTPLE MYELOMA

Sheikha

Page 37: medicine.myeloma.(dr.anwar shexa)

MPVAD

Quicker ResponseBetter control of symptoms

Less Myelotoxic & more convenient before autologous Transplant

Good after MP relapse

4 day infusion iscumbersome & need

central Line

M2PROTOCOL

AggressiveAlkylating

Combination

Better reservedfor relapse after

autotransplantfailure & otherSpecial cases

STANDARDREGIMEN

NO OTHERREGIMEN

PRODUCED BETTER OS

OS > 3YRSSheikha

Page 38: medicine.myeloma.(dr.anwar shexa)

MPVAD

Melphalan1 mg/kg

÷ 5 days Each 5 weeks

Tailor dose ~ ANC nadir

Prednisolone60 mg/dayFor 5 daysEach 5 weeks

Vincristine0.4 mg/m2/day

i.v. infusion over 4 days

Adriamycin9 mg/m2/day

i.v. infusion over 4 days

Dexamethasone20 mg/m2

p.o. on days1-4, 9-12, & 17-20

REPEAT COURSE EACH 28 DAYS

M2PROTOCOL

Vincristine

Carmustine

Cyclophosphamide

Melphalan

Prednisolone

Sheikha

Page 39: medicine.myeloma.(dr.anwar shexa)

Thalidomide

Begin at200 mg p.o. daily

Increase by200 mg every

2 weeksfor a goal

of 800 mg

p.o.daily

Constipation Neuropathy Somnolence

Thalidomideis

NOTMyelotoxic

Sheikha

Page 40: medicine.myeloma.(dr.anwar shexa)

Thalidomide

potential mechanisms of antimyeloma activity: (a) Direct effects (b) antiadhesive action (a)(c) GF inhibition (d) antiangiogenesis (a)(e) immunomodulation

bFGF: basic fibroblast growth factor TNF: tumor necrosis factor ICAM: intracellular adhesion molecule IFN: interferon IL: interleukin VEGF: vascular endothelial growth factor

Thalidomide

Begin at 200 mg p.o. daily

Increase by 200 mg every 2 weeks for a goal of 800 mg p.o. daily

Angio-genesis

Page 41: medicine.myeloma.(dr.anwar shexa)

Thalidomide

Page 42: medicine.myeloma.(dr.anwar shexa)

Dexamethasone

Described as the single most effective agent in Myeloma

Effective efficacy comparable to VAD in Primary Refractory Myeloma

Not Myelosuppressive and suits patients with severe marrow compromise

In Frail & Elderly patients start with a lower dose

Dexamethasone20 mg/m2 p.o. on days

1-4, 9-12, & 17-20

REPEAT COURSE EACH 28 to 42 DAYS

Sheikha

Page 43: medicine.myeloma.(dr.anwar shexa)

2006 ASH UPDATE

VAD

MP

DEXA THALID-OMIDE MDT

*MPT

VMP

Velcade“Bortezomib”

RMP

Revlimid“Lena-

lidomide”

ThalDD

Pegylated Ribosomal Doxorubicin

+Dexa

ThalidomideLenalidomide “Revlimid”Bortezomib “Velcade”Pegylated Ribosomal Doxorubicin

Page 44: medicine.myeloma.(dr.anwar shexa)

French randomized trial of conventional versus high-dose therapy

Page 45: medicine.myeloma.(dr.anwar shexa)

BONEMARROW

or

PERIPHERALSTEM CELL

TRANSPLANTATION

HIGH DOSE CHEMOTHERAPY

“VAD”

AutologousTransplant

ALLOGENEICTRANSPLANT

Ideal for YoungPatients with

HistocompatibleDonor Sibling

Sheikha

Page 46: medicine.myeloma.(dr.anwar shexa)

PBSCT, peripheral blood stem cell transplantation

Stem Cell Transplantation as Up-Front versus Rescue Treatment

Measure PBSCT Early PBSCT Late

Estimated median overall survival 64.6 mo 64.0 mo

Median event-free survival 39.0 mo 13.0 mo

Quality-adjusted time without symptoms or toxicity 27.8 mo 22.3 mo

Page 47: medicine.myeloma.(dr.anwar shexa)

ADJUVANT TREATMENTS IN MULTIPLE MYELOMA

BIS-PHOSPHONATES

PAMIDRONATEZOLEDRONATE

EPO

RADIATION

HEMO-DIALYSIS

INTERFERON

Pneumovax

Inhibit Bone Resorption

Reduces Bone #

Suppresses Hypercalcemia

Convenient 1 injection/monthSheikha

Page 48: medicine.myeloma.(dr.anwar shexa)

DC: dendritic cell IL: interleukin IMIDS: immunomodulatory drugs MM: multiple myeloma VEGF: vascular endothelial growth factor

Novel treatment approaches to Myeloma from the bench to the bedside

Page 49: medicine.myeloma.(dr.anwar shexa)

Thalidomide:

potential mechanisms of antimyeloma activity. (a)Direct effects; (b) antiadhesive action;

(b)(c) growth factor inhibition; (d) antiangiogenesis; (c)(e) immunomodulation. bFGF, basic fibroblast growth factor;

(d)ICAM, intracellular adhesion molecule; IFN, (e)interferon; IL, interleukin; TNF, tumor necrosis factor;

(f)VEGF, vascular endothelial growth factor

Angio-genesis

Page 50: medicine.myeloma.(dr.anwar shexa)

AMYLOIDOSIS

Sheikha

Page 51: medicine.myeloma.(dr.anwar shexa)

PRIMARYAMYLOIDOSIS

Sheikha

Page 52: medicine.myeloma.(dr.anwar shexa)

Primary Amyloidosis

PC neoplasm that secretes an abnormal Ig,Which deposits in various tissues & forms a

β-pleated sheet structure that binds Congo Red dye with characteristic birefringence

RareAdult

Disease

80% of Patients have Monoclonal Ig

20% haveMyeloma

15% ofMyeloma have or develop

10

Amyloidosis

GUT

Mal-Absorp-

tion

CHFHMG

N.S.

CRF

Macroglossia

NERVESSensorimotorneuropathy

Loss of Sphinctercontrol

DiagnosticBiopsy Sites

Abd. s.c. fat-padBone Marrow

Rectum

Sheikha

Page 53: medicine.myeloma.(dr.anwar shexa)

Primary Amyloidosis

Deposition in organs ORGANOMEGALY

BLEEDINGIncreased vessel fragility

Coagulation factors binding

Amyloid is a fibrillary protein that causes organ failure

ALPrimary or

Ig- light chainAmyloidosis

(~ Myeloma)

AASecondary

~ inflammation

AFFamilial

β2 Micro-

globulin

~ Dialysis

Sheikha

Page 54: medicine.myeloma.(dr.anwar shexa)

SOP

Sheikha

Page 55: medicine.myeloma.(dr.anwar shexa)

SOP

SolitaryOsseous

Plasmacytoma

Sheikha

Page 56: medicine.myeloma.(dr.anwar shexa)

SOP

5% of PC neoplams

No other Lytic lesions should be detectedMarrow away from the lesion should not have plasmacytosis

Site depends on marrow activity

In order of frequency sites are:Vertebrae Ribs Skull Pelvis Femur Clavicle Scapula

35%CURED

55%MM

>10 years

10%Local Recurrennce

orAnother SOP

Treatment

RTIf Paraprotein +veit should disappear

after treatment

Sheikha

Page 57: medicine.myeloma.(dr.anwar shexa)

EXTRA-OSSEOUSPLASMACYTOMA

Sheikha

Page 58: medicine.myeloma.(dr.anwar shexa)

EOP

ExtraOsseous

Plasmacytoma

Sheikha

Page 59: medicine.myeloma.(dr.anwar shexa)

BMSC, bone marrow stromal cell ECM, extracellular matrix ICAM, intracellular adhesion molecule IL, interleukin

LFA, lymphocyte function-associated antigen MM, multiple myeloma VCAM, vascular cell adhesion molecule

VLA, very late antigen

Role of

adhesion molecules

in disease

pathogenesis

Page 60: medicine.myeloma.(dr.anwar shexa)

EOPEXTRA

OSSEOUSEXTRA

MEDULLARY

5% of PC neoplasmsNo Lytic lesions or marrow plasmacytomaMedian Age: 55 yearsM/F ratio: 2:1

80%UPPER

RESPIRATORY TRACT

OropharynxNasopharynx

SinusesLarynx GIT

BLADDER CNS BREAST THYROID

TESTIS

PAROTIDL. N.SKIN

15 – 20% may have PARAPROTEINEMIATreatment RT15%MM

25%Recurrence

Sheikha

Page 61: medicine.myeloma.(dr.anwar shexa)

WALDENSTOROM’SMACROGLOBULINEMIA

Sheikha

Page 62: medicine.myeloma.(dr.anwar shexa)

M-GUS

MONOCLONAL GAMMOPATHYOF UNDETERMINATE SIGNIFICANCE

BENIGN MONOCLONAL GAMMOPATHY

Sheikha

Page 63: medicine.myeloma.(dr.anwar shexa)

Sheikha

Page 64: medicine.myeloma.(dr.anwar shexa)

HCD

HEAVYCHAIN

DISEASES

Sheikha

Page 65: medicine.myeloma.(dr.anwar shexa)

HCD

αμ γ

Sheikha

Page 66: medicine.myeloma.(dr.anwar shexa)

HCD

γGamma

HCD

αAlphaHCD

μmuHCD

A variant

of

LPCLymphoma

A variant

ofExtranodal

Margianl Zone

MALTLymphoma

A variant

of

CLL

Sheikha

Page 67: medicine.myeloma.(dr.anwar shexa)

αHeavy Chain Disease

IPSIDImmunoproliferative Small Intestinal Disaese

Mediterranean Lymphoma

~ H. pyloriSheikha

Page 68: medicine.myeloma.(dr.anwar shexa)

POEMSSYNDROME

POLYNEUROPATHY(Sensorimotor Demyelination)

SKIN CHANGES(Hyperpigmentation;

Hypertrichosis)MONOCLONAL GAMMOPATHY

ENDOCRINOPATHY(Diabetes;

Gynecomastia;Testicular Atrophy;

Impotence)

ORGANOMEGALY(Hepato-

Splenomegaly)

OSTEOSCLEROTICMYELOMA

Marrow infiltrated by PC & bone trabeculae thickenedRare:1 to 2% of PC dyscrasias Median Age: 50 years

Page 69: medicine.myeloma.(dr.anwar shexa)
Page 70: medicine.myeloma.(dr.anwar shexa)
Page 71: medicine.myeloma.(dr.anwar shexa)

Cellular origin of myeloma: genetic and cellular events in disease pathogenesis

Page 72: medicine.myeloma.(dr.anwar shexa)

Interleukin-6-mediated myeloma cell growth. BMSC, bone marrow stromal cell; IL, interleukin;

NF, nuclear factor; TGF, transforming growth factor

Page 73: medicine.myeloma.(dr.anwar shexa)

Apoptosis signaling cascades in myeloma cells. IL, interleukin; JNK, c-jun N-terminal kinase; PYK, proline-rich tyrosine kinase; RAFTK, related adhesion focal tyrosine kinase; SAPK, stress-activated protein kinase

Page 74: medicine.myeloma.(dr.anwar shexa)

Interleukin-6 growth and antiapoptotic cascades in myeloma cells. MAP, mitogen-activated protein; RAFTK, related adhesion focal tyrosine kinase; SHP, Src homology protein tyrosine phosphatase

Page 75: medicine.myeloma.(dr.anwar shexa)

BMSC, bone marrow stromal cell ECM, extracellular matrix ICAM, intracellular adhesion molecule IL, interleukin

LFA, lymphocyte function-associated antigen MM, multiple myeloma VCAM, vascular cell adhesion molecule

VLA, very late antigen

Role of

adhesion molecules

in disease

pathogenesis

Page 76: medicine.myeloma.(dr.anwar shexa)

None 6