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Articles by P Devilee
Total Records ( 3 ) for P Devilee
  P. J Koelink , E. C Robanus Maandag , P Devilee , D. W Hommes , C. B.H.W Lamers and H. W. Verspaget

Genetic predisposition, life-style habits and inflammatory bowel diseases (IBD)-related colitis are a main risk factor for colorectal cancer (CRC). 5-Aminosalicylic acid (5-ASA, mesalazine) is a mainstay therapy in IBD and believed to reduce the risk for developing CRC. We aimed to determine the ability of 5-ASA enemas to inhibit the development of sporadic and colitis-related neoplasia in mice. FabplCre;Apc15lox/+ mice, which spontaneously develop sporadic colorectal tumours, were treated at 5 weeks of age with 5-ASA or placebo enemas for 3 weeks and examined for colorectal tumourigenesis at 8 weeks of age. Colitis-related tumour development was investigated in these mice by administration of dextran sodium sulphate, inducing intestinal inflammation and accelerating colorectal tumourigenesis, combined with treatment of 5-ASA or placebo enemas during and/or after colitis induction. 5-ASA significantly reduced colitis-accelerated neoplasia development by 50%, from 19.4 ± 2.7 to 9.4 ± 2.4 (mean tumour numbers ± SEM, P = 0.02), in the distal part of the large intestine covered by the enema. 5-ASA was only effective when given during and/or after the intestinal inflammatory period. 5-ASA did not reduce, however, sporadic neoplasia development in the FabplCre;Apc15lox/+ mice. 5-ASA tended to reduce proliferation of epithelial cells in the colitis-associated colorectal tumours but not in the sporadic colorectal tumours. In conclusion, 5-ASA medication inhibits the development of colitis-associated tumours in FabplCre;Apc15lox/+ mice when administered during and/or after the induction of inflammation. 5-ASA does not reduce, however, sporadic tumour development in this mouse model.

  E. C Robanus Maandag , P. J Koelink , C Breukel , D. C. F Salvatori , S. C Jagmohan Changur , C. A. J Bosch , H. W Verspaget , P Devilee , R Fodde and R. Smits

Mutations of the adenomatous polyposis coli (APC) gene predispose individuals to familial adenomatous polyposis (FAP), characterized by multiple tumours in the large intestine. Most mouse models heterozygous for truncating mutant Apc alleles mimic FAP, however, the intestinal tumours occur mainly in the small intestine. To model large intestinal tumours, we generated a new conditional Apc-mutant allele, Apc15lox, with exon 15 flanked by loxP sites. Similar survival of Apc1638N/15lox and Apc1638N/+ mice indicated that the normal function of Apc was not impaired by the loxP sites. Deletion of exon 15, encoding nearly all functional Apc domains and containing the polyadenylation signal, resulted in a mutant allele expressing low levels of a 74 kDa truncated Apc protein. Germ line Cre-mediated deletion of exon 15 resulted in Apc15/+ mice, showing a severe ApcMin/+-like phenotype characterized by multiple tumours in the small intestine and early lethality. In contrast, conditional Cre-mediated deletion of exon 15 specifically directed to the epithelia of distal small and large intestine of FabplCre;Apc15lox/+ mice led to longer survival and to tumours that developed predominantly in the large intestine, mimicking human FAP-associated colorectal cancer and sporadic colorectal cancer. We conclude that the FabplCre;Apc15lox/+ mouse should be an attractive model for studies on prevention and treatment of colorectal cancer.

  R. L Milne , J Benitez , H Nevanlinna , T Heikkinen , K Aittomaki , C Blomqvist , J. I Arias , M. P Zamora , B Burwinkel , C. R Bartram , A Meindl , R. K Schmutzler , A Cox , I Brock , G Elliott , M. W. R Reed , M. C Southey , L Smith , A. B Spurdle , J. L Hopper , F. J Couch , J. E Olson , X Wang , Z Fredericksen , P Schurmann , M Bremer , P Hillemanns , T Dork , P Devilee , C. J van Asperen , R. A. E. M Tollenaar , C Seynaeve , P Hall , K Czene , J Liu , Y Li , S Ahmed , A. M Dunning , M Maranian , P. D. P Pharoah , G Chenevix Trench , J Beesley , kConFab Investigators , N. N Antonenkova , I. V Zalutsky , H Anton Culver , A Ziogas , H Brauch , C Justenhoven , Y. D Ko , S Haas , P. A Fasching , R Strick , A. B Ekici , M. W Beckmann , G. G Giles , G Severi , L Baglietto , D. R English , O Fletcher , N Johnson , I dos Santos Silva , J Peto , C Turnbull , S Hines , A Renwick , N Rahman , B. G Nordestgaard , S. E Bojesen , H Flyger , D Kang , K. Y Yoo , D. Y Noh , A Mannermaa , V Kataja , V. M Kosma , M Garcia Closas , S Chanock , J Lissowska , L. A Brinton , J Chang Claude , S Wang Gohrke , C. Y Shen , H. C Wang , J. C Yu , S. T Chen , M Bermisheva , T Nikolaeva , E Khusnutdinova , M. K Humphreys , J Morrison , R Platte , D. F Easton and on behalf of the Breast Cancer Association Consortium

A recent genome-wide association study identified single-nucleotide polymorphism (SNP) 2q35-rs13387042 as a marker of susceptibility to estrogen receptor (ER)–positive breast cancer. We attempted to confirm this association using the Breast Cancer Association Consortium.


2q35-rs13387042 SNP was genotyped for 31 510 women with invasive breast cancer, 1101 women with ductal carcinoma in situ, and 35 969 female control subjects from 25 studies. Odds ratios (ORs) were estimated by logistic regression, adjusted for study. Heterogeneity in odds ratios by each of age, ethnicity, and study was assessed by fitting interaction terms. Heterogeneity by each of invasiveness, family history, bilaterality, and hormone receptor status was assessed by subclassifying case patients and applying polytomous logistic regression. All statistical tests were two-sided.


We found strong evidence of association between rs13387042 and breast cancer in white women of European origin (per-allele OR = 1.12, 95% confidence interval [CI] = 1.09 to 1.15; Ptrend = 1.0 x 10–19). The odds ratio was lower than that previously reported (P = .02) and did not vary by age or ethnicity (all P ≥ .2). However, it was higher when the analysis was restricted to case patients who were selected for a strong family history (P = .02). An association was observed for both ER-positive (OR = 1.14, 95% CI = 1.10 to 1.17; P = 10–15) and ER-negative disease (OR = 1.10, 95% CI = 1.04 to 1.15; P = .0003) and both progesterone receptor (PR)–positive (OR = 1.15, 95% CI = 1.11 to 1.19; P = 5 x 10–14) and PR-negative disease (OR = 1.10, 95% CI = 1.06 to 1.15; P = .00002).


The rs13387042 is associated with both ER-positive and ER-negative breast cancer in European women.

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