Animal Models Ad Advances in Endometrial Cancer Epidemiology and - - PowerPoint PPT Presentation

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Animal Models Ad Advances in Endometrial Cancer Epidemiology and - - PowerPoint PPT Presentation

Animal Models Ad Advances in Endometrial Cancer Epidemiology and Biology i E d i l C E id i l d Bi l Harvard School of Public Health 2014 Diego H. Castrilln, M.D., Ph.D. Department of Pathology and Department of Pathology and Simmons


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Animal Models

Ad i E d i l C E id i l d Bi l Advances in Endometrial Cancer Epidemiology and Biology Harvard School of Public Health 2014 Diego H. Castrillón, M.D., Ph.D.

Department of Pathology and Department of Pathology and Simmons Comprehensive Cancer Center University of Texas Southwestern Medical Center D ll T Dallas, Texas

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DISCLOSURES

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  • Consultant / Scientific Advisor / Inventor on IP licensed to

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/ / Molecular MD (LKB1 and oncology biomarker diagnostics)

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Genetically-engineered d l f h mouse models of human cancer

  • Cancer is defined by complex tumor/host cell interactions

y p /

  • Cancer cannot be fully modelled in vitro
  • Diversity of genetic tools and alleles is needed
  • Useful for hypothesis testing and hypothesis generation
  • Preclinical models / therapy individualization
  • TCGA  many new endometrial cancer genes
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SLIDE 4

The uterus: mouse vs. human

Mouse = “duplex type” uterus Human = “simplex type” uterus p yp

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SLIDE 5

4000 5000 1000 2000 3000

s c l e

Neonatal Ovary Adult Ovary Eggs Cumulus Cells ES Cells Testis E11 Embryo Adrenal Gland Placenta Uterus

  • B. Marrow

Spleen Thymus Brain Eye

  • Sk. Muscle

Heart Intestine Kidney Liver Lung

Discovery of Sprr2f as endometrial specific gene

S k i n T

  • n

g u e L u n g H e a r t S k e l e t a l M u s c S p l e e n T h y m u s I n t e s t i n e L i v e r S t

  • m

a c h K i d n e y B r a i n T e s t i s U t e r u s 0.8 -

endometrial-specific gene

Day 4 (Estrus) O v a r y MG Uterus Vagina E2 3 Wk Uterus Cycle Day: 0.8 -

1 2 3 4 5

( s us)

+ -

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SLIDE 6

Sprr2f RNA ISH Sprr2f RNA ISH

In situ Endometrinin

Contreras et al Dis Model Mech 2010 3:181

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SLIDE 7

Generation and validation f S 2f C T ll l

  • f Sprr2f-Cre Tg allele

S 2f C x R26R Sprr2f-Cre x R26R

Contreras et al Dis Model Mech 2010 3:181

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SLIDE 8

Stereotypical tumor progression in Sprr2f-Cre; Lkb1L/L ♀ Sprr2f-Cre; Lkb1 / ♀

WT Cre + Lkb1 L/L Cre + Lkb1 L/L Cre + Lkb1 L/L Cre + Lkb1 L/L 16 weeks 6 weeks 12 weeks 16 weeks 20 weeks

0.46g 0.19g 0.14g 1.17g

* * * *

0.11g bladder

  • ar

cervix extra uterine fat

* * *

peritoneum bladder

  • vary

cervix extra-uterine fat peritoneum

*

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SLIDE 9

60 80 100 Cre; Lkb1L/L (n=25) +/+ (n=10) Cre; Lkb1L/+ (n=12)

vival

S 2f C Lkb1L/L

20 40

p < 0.0001 % surv

Sprr2f-Cre; Lkb1L/L tumors are highly lethal

2.0 2.5 200 400 600 800 1000

days

highly lethal

1.0 1.5

wt Cre; Lkb1L/L weight (g)

3 5 6 8 4 1 1 2 1 4 1 6 8 1 9 6 0.0 0.5

Cre; Lkb1 days days

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SLIDE 10

mTOR inhibitors for cancer therapy py

  • Mixed results

Everolimus (RAD001) Temsirolimus (CCI-779) Rapamycin

  • Mixed results
  • No benefit: melanoma, GBM, etc.
  • T

i li FDA d f RCC

  • Temsirolimus: FDA approved for RCC
  • Responses in endometrial ca

N di i

  • No predictive tests
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Rapamycin sensitivity in endometrial cancer cell lines

A B

Cell line Rank Sensitivity (10 µM) AN3CA 4 0 086

endometrial cancer cell lines

AN3CA 4 0.086 MFE-319 11 0.157 MFE-296 16 0.195 HEC-1 24 0.228 Ishikawa 86 0.395 Heraklio 02 ER- 103 0.419 SNG-M 113 0.428 EN 149 0.474

p=3x10-5

C

28 e

EN 149 0.474 EFE-184 155 0.48 MFE-280 374 0.635

16 20 24 f a particular tumor type 4 8 12 f responding cell lines of endometrial cancer 10 20 30 40 50 60 70 80 90 100 % of responding cell lines of a particular tumor type # of

Jeff Settleman

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mTOR inhibitor trial: early disease y Sprr2f-Cre; Lkb1L/L ♀ Sprr2f Cre; Lkb1 ♀ age: 12 weeks rapamycin vehicle rapamycin vehicle

(2mg/kg qD)

4 weeks

autopsy

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1.0 p<0.0001 0.4 0.6 0.8 erine weight (g) Lkb1 pa wt wt + Rapa Lkb1 Lkb1 + Rapa 0.0 0.2 ute Lkb1+Rap

150 200 250 positivity 100 150 200 positivity

p=0.013

200 300

  • sitivity

p=0.004 p<0.0001

Rapamycin halts tumor progression

wt Lkb1 Lkb1+Rapa 50 100 p-S6K p wt Lkb1 Lkb1+Rapa 50 TUNEL p wt Lkb1 Lkb1+Rapa 100 Ki67 po

p-S6K p wt Lkb1 Lkb1 + Rapa

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mTOR inhibitor trial: advanced disease Sprr2f-Cre; Lkb1L/L ♀ p ; ♀ age >20 wks (advanced disease) rapamycin

(2mg/kg qD)

serial MRI (q 2 wks) se a M (q w s)

Contreras et al Dis Model Mech 2010 3:181

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SLIDE 15

Rapamycin results in tumor regression

1800 1200 1500 1800

† ↓

mm 3) 2.0 2.5 ge

600 900

† ↓

volume (m 0.5 1.0 1.5

↓ ↓

fold chang

2 4 6 8 1 300

weeks

Pre-tx (0 wks) 2 wks Rapa 4 wks Rapa 6 wks Rapa 8 wks (2 wks off)

2 4 6 8 10 0.0 weeks

Pre tx (0 wks) 2 wks Rapa 4 wks Rapa 6 wks Rapa 8 wks (2 wks off)

Contreras et al Dis Model Mech 2010 3:181

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Oophorectomy prolongs survival in Lkb1-driven endometrial cancer

100

Lkb1 (n=11) Lkb1 + oophorectomy (n=13)

50

ival (%)

50

surv

50 100 150 200 250 300 350 400 450

p = 0.0004 Age (days)

Dennis Ruder

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SLIDE 17

Validation of Lkb1 mAB

(Cell Signalling clone #D60C5)

in mosaic mice (6 weeks)

40 60 80 100 20 3wks 6wks 12wks 20wks

Lkb1L/L 6 weeks Sprr2f-Cre; Lkb1L/L 6 weeks 6 weeks 6 weeks

Nakada et al PLOS ONE 2013 8:e73449

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Telomere shortening in Type II cancers?

TELO-CISH Type II << Type I

Akbay et al Am J Pathol 2008 173:536

Type II << Type I

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Endometrial cancer in Pot1a/p53 mice

Akbay et al Oncogene 2013 32:2219

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Type II features in Pot1a/p53 tumors /

Akbay et al Oncogene 2013 32:2219

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Tetraploidy in Pot1a/p53 Pot1a/p53 tumors

Akbay et al Oncogene 2013 32:2219

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Summary/outlook Summary/outlook

  • Mouse models rich potential resource for

understanding biology of endometrial carcinogenesis understanding biology of endometrial carcinogenesis (Type I vs. Type II)

  • Untapped potential in the ultimate goal of validation

and individualization of cancer therapy and individualization of cancer therapy

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SLIDE 23

Acknowledgments

  • Castrillon Lab
  • MGH Cancer Center Harvard

– Cristina Contreras – Shana Wingo – Esra Akbay*** Teresa Gallardo – Nabeel Bardeesy – Jeff Settleman – John Schorge – Teresa Gallardo – Marshall Haynie – George John – Meredith Shidler

  • DFCI

– Kwok Kin-Wong – David Kwiatkowski

Y l S h l f M di i

– Lane Shirley – Jose Michel – Yuji Nakada – Chris Peña

  • Yale School of Medicine

– Sandy Chang

  • UNC Lineberger

Norman Sharpless Chris Peña – Dennis Ruder – Ileana Cuevas – Norman Sharpless – Neil Hayes

  • MD Anderson

– Russel Broaddus

  • Support

– NCI MMHCC UO1 – NCI RO1 – CPRIT Individual Investigator Award Russel Broaddus

  • UTSW Advanced Imaging Center

– Masaya Takahashi g – NIH Mouse Pathobiologist Award (K26) – Sidney Kimmel Foundation – ACS