Prostate Cancer, Hereditary, X-Linked 2

For a general discussion of hereditary prostate cancer, see 176807.

Mapping

Gudmundsson et al. (2008) conducted a genomewide single-nucleotide polymorphism (SNP) association study on prostate cancer on over 23,000 Icelanders, followed by a replication study including over 15,500 individuals from Europe and the United States. Two newly identified variants were shown to be associated with prostate cancer: rs5945572 on Xp11.22, and rs721048 on 2p15 (HPC12; 611868). The A allele of rs5945572 showed the strongest association of markers on the X chromosome in analysis of the Icelandic samples (allele-specific OR = 1.21, P = 3.36 x 10(-4)). Combining results from the Icelandic group with those from 7 other prostate cancer study groups of European descent resulted in achievement of genomewide significance for rs5945572: OR = 1.23, P = 3.95 x 10(-13). The rs5945572 SNP is located on Xp11.22, with the closest genes being NUDT10 (300527) and NUDT11 (300528) on Xp11.23. The A allele correlated with a population-attributable risk (PAR) of approximately 7% in individuals of European descent.

Eeles et al. (2008) conducted a genomewide association study (GWAS) using blood DNA samples from 1,854 individuals with clinically detected prostate cancer diagnosed at or before the age of 60 years or with a family history of disease, and 1,894 population-screened controls with a low prostate-specific antigen (PSA) concentration (less than 0.5 ng/ml). Eeles et al. (2008) analyzed these samples for 541,129 SNPs using the Illumina Infinium platform. Initial putative associations were confirmed using a further 3,268 cases and 3,366 controls. Eeles et al. (2008) identified association of a SNP on chromosome Xp, rs5945619 (P = 1.5 x 10(-9)), between NUDT10 and NUDT11 (about 2 kb upstream of the latter).