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HOXB13 mutations in a population-based, case-control study of prostate cancer.


ABSTRACT: BACKGROUND:Prostate cancer (PC) is the most frequently diagnosed non-skin malignancy in men in the Western world, yet few disease-associated mutations have been found. Recently, a low frequency recurring mutation in the HOXB13 gene was reported among both hereditary PC families and men from the general population. MATERIALS AND METHODS:We determined the distribution and frequency of the G84E HOXB13 variant in 1,310 incipient PC cases and 1,259 age-mated controls from a population-based, case-control study of PC. RESULTS:The G84E mutation was more frequent in cases than controls (1.3% vs. 0.4%, respectively), and men with the HOXB13 G84E variant had a 3.3-fold higher relative risk of PC compared with noncarriers (95% CI, 1.21-8.96). There was a stronger association between the G84E variant and PC among men with no first-degree relative with PC (OR, 4.04; 95% CI, 1.12-14.51) compared to men with a family history of PC (OR, 1.49; 95% CI, 0.30-7.50; P?=?0.36 for interaction). We observed some evidence of higher risk estimates associated with the variant for men with higher versus lower Gleason score (OR, 4.13; 95% CI, 1.38-12.38 vs. OR, 2.71; 95% CI, 0.88-8.30), and advanced versus local stage (OR, 4.47; 95% CI, 1.28-15.57 vs. OR, 2.98; 95% CI, 1.04-8.49), however these differences were not statistically different. CONCLUSIONS:These results confirm the association of a rare HOXB13 mutation with PC in the general population and suggest that this variant may be associated with features of more aggressive disease.

SUBMITTER: Stott-Miller M 

PROVIDER: S-EPMC3612366 | BioStudies | 2013-01-01

REPOSITORIES: biostudies

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