identificazione di pathways molecolari associati alla...

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Rosanna Martinelli Ph.D. Dipartimento di Biochimica e Biotecnologie Mediche - CEINGE Biotecnologie Avanzate Identificazione di pathways molecolari associati alla resistenza all’imatinib nella leucemia mieloide cronica mediante la tecnologia del microarray. Dal design all’analisi dei dati Rosanna Martinelli Ph.D. Dipartimento di Biochimica e Biotecnologie Mediche Università degli Studi di Napoli “Federico II” CEINGE-Biotecnologie Avanzate ICAR-CNR 18 dicembre 2007

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Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

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iche

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GE

Bio

tecn

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Iden

tifica

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e di

pat

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sociat

i alla

resist

enza

all’im

atinib

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leu

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anna

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Ros

anna

Mar

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Bio

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ica

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Med

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Ros

anna

Mar

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Ros

anna

Mar

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h.D

. Dip

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Bio

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Ros

anna

Mar

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h.D

. Dip

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ica

e B

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Med

iche

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GE

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Ros

anna

Mar

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lli P

h.D

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anna

Mar

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h.D

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Med

iche

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GE

Bio

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vanz

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Ros

anna

Mar

tine

lli P

h.D

. Dip

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Ros

anna

Mar

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h.D

. Dip

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Bio

chim

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e B

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Med

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IMPO

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Ros

anna

Mar

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h.D

. Dip

arti

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todi

Bio

chim

ica

e B

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Med

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Ros

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Mar

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h.D

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Bio

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Med

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Bio

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Sample

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Ros

anna

Mar

tine

lli P

h.D

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arti

men

todi

Bio

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ica

e B

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Med

iche

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GE

Bio

tecn

olog

ie A

vanz

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Ros

anna

Mar

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arti

men

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Med

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Bio

tecn

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Ros

anna

Mar

tine

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h.D

. Dip

arti

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Bio

chim

ica

e B

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Med

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GE

Bio

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Ros

anna

Mar

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h.D

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arti

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todi

Bio

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Med

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GE

Bio

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Ros

anna

Mar

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h.D

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vanz

ate

Ros

anna

Mar

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h.D

. Dip

arti

men

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Bio

chim

ica

e B

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Med

iche

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GE

Bio

tecn

olog

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vanz

ate

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

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e B

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Med

iche

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anna

Mar

tine

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h.D

. Dip

arti

men

todi

Bio

chim

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Med

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GE

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Ros

anna

Mar

tine

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h.D

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arti

men

todi

Bio

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Med

iche

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GE

Bio

tecn

olog

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The

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anne

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Ros

anna

Mar

tine

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h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

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ogie

Med

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GE

Bio

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vanz

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Gene

exp

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analys

isof

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esfo

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e id

entifica

tion

of m

olec

ular

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hanism

sas

sociat

edto

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inib

resist

ance

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Ros

anna

Mar

tine

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h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

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Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

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ate

Chro

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nic

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ome

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activa

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e th

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th

e pa

thog

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is o

f CM

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anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

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e B

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Med

iche

-C

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GE

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olog

ie A

vanz

ate

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inib

clinical

effe

cton

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loge

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inib

(for

mal

lyS

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)ha

sbe

enre

port

edto

have

a sign

ifican

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cton

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onic

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loge

nous

leuk

emia

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in th

e ch

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e

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ive

BCR–

ABL

pr

otein

tyro

sine

kinas

e inhibi

tor

agains

t:

ABL

onc

opro

teins

(c-A

BL, BC

R-ABL

, ET

V1-A

BL),

c-KI

T

Plat

elet

-der

ived

gro

wth

fact

or r

ecep

tor

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Mec

hanism

of t

he d

rug

imat

inib

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Man

ypa

tien

tsin b

last

crisis

who

are

being

trea

ted

with

imat

inib

relaps

eat

a r

elat

ively

early

time,

su

gges

ting

that

leuk

emia

cells

tend

toac

quire

resist

ance

toim

atinib

easily

in b

last

crisis.

Dru

gre

sist

ance

isa

maj

or p

roblem

for

CML

patien

tsin b

last

crisis

who

are

being

trea

ted

with

imat

inib

.

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Imat

inib

res

ista

nce

mec

hanism

s

Intr

insic

resist

ance

to

imat

inib

src-

kina

se L

YNCo

nstitu

tive

nuc

lear

fac

tor

(NF)

-B a

ctivat

ion

Seco

ndar

y or

acq

uire

d re

sist

ance

Mut

ations

in

the

BCR–

ABL

dom

ain

Ove

rexp

ress

ion

of B

CR–A

BL o

ncop

rote

in

Neith

erov

erex

pres

sion

nor

mut

ations

of B

CR/A

BL h

ave

been

foun

din s

ome

imat

inib

-res

ista

ntce

lllin

esan

d pa

tien

ts

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

KCL2

2 an

d KC

L22R

CellLine

s

KCL2

2 is

a Ph

ilade

lphia

chro

mos

ome-

positive

cell

line

esta

blishe

dfr

ompe

riph

eral

bloo

dof

a

patien

twi

thCM

L in b

last

crisis

To

gene

rate

imat

inib

-res

ista

ntclon

es,

KCL2

2 ce

llswe

retr

eate

dwi

thst

ep-w

ise

incr

easing

conc

entr

ations

of

imat

inib

(0.1

–1.0

µM

)

The

IC5

0 va

lue

of imat

inib

for

KCL2

2/SR

isab

out

11.6

-fo

ld h

ighe

rth

anth

atto

KCL2

2 indica

ting

a sign

ifican

tre

sist

ance

toim

atinib

No

mut

ation

in th

e BC

R/ABL

ge

ne an

d no

incr

ease

in

BCR/

ABL

pro

tein

and

P-gp

leve

lswe

reob

serv

ed

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

exp

ress

ion

analys

isof

KCL

22 c

elllin

esfo

rth

e id

entifica

tion

of m

olec

ular

mec

hanism

sas

sociat

edto

imat

inib

resist

ance

Ana

lysis

of 2

2.00

0 hu

man

gene

sus

ing

60-m

er

oligon

ucleot

ides

(Agilent

) sint

hetize

don

glass

slid

es

Cell

lines

compa

riso

nan

d Tim

e Co

urse

For

each

expe

rimen

tsw

ap o

f dy

es

Imag

eac

quisition

with

the

Agilent

Sca

nner

Dat

a Ana

lysis

perf

ormed

with

Gene

Spring

, Ba

belomics

and

GO T

ree

Mac

hine

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

Spring

Dat

a Ana

lysis

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

Spring

dat

a no

rmalizat

ion

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

Spring

Dat

a Pr

oces

sing

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

Spring

Sta

tist

ical

Ana

lysis

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

Sor

ting

& I

nter

pret

atio

n

Gene

Ont

olog

yth

e G

O p

roje

ct h

asde

velo

ped

thre

est

ruct

ured

cont

rolle

dvo

cabu

larie

s(o

ntol

ogie

s) t

hat

desc

ribe

gene

pr

oduc

tsin

ter

ms

of t

heir

asso

ciat

ed

Biolog

ical P

roce

ssM

olec

ular

Fun

ction

Cellu

lar

Path

ways

KEGG

Pat

hway

sis

a co

llect

ion

of

man

ually

draw

npa

thwa

ym

aps

repr

esen

ting

know

ledg

eon

th

e m

olec

ular

inte

ract

ion

and

reac

tion

netw

orks

for:

Met

abolism

Gene

tic

info

rmat

ion

Enviro

men

talIn

form

ation

Cellu

lar

Proc

ess

Hum

andise

ases

Dru

gDev

elop

men

t

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Gene

Ont

olog

y

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

KCL2

2 Ti

me

Cour

se

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Ros

anna

Mar

tine

lli P

h.D

. Dip

arti

men

todi

Bio

chim

ica

e B

iote

cnol

ogie

Med

iche

-C

EIN

GE

Bio

tecn

olog

ie A

vanz

ate

Ack

nowl

edge

men

ts

Dot

t.ss

aTon

ia B

uono

mo

Dot

t.ss

aVe

ra R

ober

tiPr

of.

Fabr

izio P

ane

Sig.

Vitt

orio L

ucigna

no

Prof

.Fr

ance

sco

Salvat

ore