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Genome Res. 2007 Dec;17(12):1717-22. Epub 2007 Oct 31.

Confirmation study of prostate cancer risk variants at 8q24 in African Americans identifies a novel risk locus.

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Division of Integrated Cancer Genomics, Translational Genomics Research Institute, Phoenix, Arizona 85004, USA.


Prostate cancer is a common complex disease that disproportionately affects men of African descent. Recently, several different common variants on chromosome 8q24 have been shown to be associated with prostate cancer in multiple studies and ethnic groups. The objective of this study was to confirm the association of 8q24 markers with prostate cancer in African Americans. We genotyped 24 markers along 8q24 and 80 unlinked ancestry informative markers in a hospital-based case-control sample of 1057 African American men (490 prostate cancer cases and 567 controls). Association analyses of 8q24 markers with prostate cancer risk were adjusted for both global and local 8q24 admixture stratification using estimates from ancestry informative markers. We report that rs7008482, which maps to the 8q24.13 region, is an additional independent prostate cancer risk variant (P = 5 x 10(-4)), and we also replicate the association of rs16901979 with prostate cancer (P = 0.002). Other published risk variants in the region such as rs1447295 and rs6983267 showed a similar direction and magnitude of effect, but were not significant in our population. Both rs7008482 and rs16901979 independently predicted risk and remained significant (P < 0.001) after controlling for each other. Our data combined with additional replications of 8q24 markers provide compelling support for multiple regions of risk for prostate cancer on 8q24.

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