Animal Models Ad Advances in Endometrial Cancer Epidemiology and - - PowerPoint PPT Presentation
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
DISCLOSURES
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- Consultant / Scientific Advisor / Inventor on IP licensed to
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/ / Molecular MD (LKB1 and oncology biomarker diagnostics)
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
The uterus: mouse vs. human
Mouse = “duplex type” uterus Human = “simplex type” uterus p yp
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)
+ -
Sprr2f RNA ISH Sprr2f RNA ISH
In situ Endometrinin
Contreras et al Dis Model Mech 2010 3:181
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
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
*
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
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
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
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
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
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
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
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
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
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
Endometrial cancer in Pot1a/p53 mice
Akbay et al Oncogene 2013 32:2219
Type II features in Pot1a/p53 tumors /
Akbay et al Oncogene 2013 32:2219
Tetraploidy in Pot1a/p53 Pot1a/p53 tumors
Akbay et al Oncogene 2013 32:2219
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
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