• Cancer research · Nov 2008

    Association study of prostate cancer susceptibility variants with risks of invasive ovarian, breast, and colorectal cancer.

    • Honglin Song, Thibaud Koessler, Shahana Ahmed, Susan J Ramus, Susanne Krüger Kjaer, Richard A Dicioccio, Eva Wozniak, Estrid Hogdall, Alice S Whittemore, Valerie McGuire, Bruce A J Ponder, Clare Turnbull, Sarah Hines, Nazneen Rahman, Breast Cancer Susceptibility Collaboration UK, Rosalind A Eeles, Douglas F Easton, Simon A Gayther, Alison M Dunning, and Paul D P Pharoah.
    • CR-UK Department of Oncology, Strangeways Research Laboratory, University of Cambridge, Cambridge, United Kingdom. honglin@srl.cam.ac.uk
    • Cancer Res. 2008 Nov 1; 68 (21): 8837-42.

    AbstractSeveral prostate cancer susceptibility loci have recently been identified by genome-wide association studies. These loci are candidates for susceptibility to other epithelial cancers. The aim of this study was to test these tag single nucleotide polymorphisms (SNP) for association with invasive ovarian, colorectal, and breast cancer. Twelve prostate cancer-associated tag SNPs were genotyped in ovarian (2,087 cases/3,491 controls), colorectal (2,148 cases/2,265 controls) and breast (first set, 4,339 cases/4,552 controls; second set, 3,800 cases/3,995 controls) case-control studies. The primary test of association was a comparison of genotype frequencies between cases and controls, and a test for trend stratified by study where appropriate. Genotype-specific odds ratios (OR) were estimated by logistic regression. SNP rs2660753 (chromosome 3p12) showed evidence of association with ovarian cancer [per minor allele OR, 1.19; 95% confidence interval (95% CI), 1.04-1.37; P(trend) = 0.012]. This association was stronger for the serous histologic subtype (OR, 1.29; 95% CI, 1.09-1.53; P = 0.003). SNP rs7931342 (chromosome 11q13) showed some evidence of association with breast cancer (per minor allele OR, 0.95; 95% CI, 0.91-0.99; P(trend) = 0.028). This association was somewhat stronger for estrogen receptor-positive tumors (OR, 0.92; 95% CI, 0.87-0.98; P = 0.011). None of these tag SNPs were associated with risk of colorectal cancer. In conclusion, loci associated with risk of prostate cancer may also be associated with ovarian and breast cancer susceptibility. However, the effects are modest and warrant replication in larger studies.

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