Admixture mapping identifies 8q24 as a prostate cancer risk locus in African-American men.


Journal Article

A whole-genome admixture scan in 1,597 African Americans identified a 3.8 Mb interval on chromosome 8q24 as significantly associated with susceptibility to prostate cancer [logarithm of odds (LOD) = 7.1]. The increased risk because of inheriting African ancestry is greater in men diagnosed before 72 years of age (P < 0.00032) and may contribute to the epidemiological observation that the higher risk for prostate cancer in African Americans is greatest in younger men (and attenuates with older age). The same region was recently identified through linkage analysis of prostate cancer, followed by fine-mapping. We strongly replicated this association (P < 4.2 x 10(-9)) but find that the previously described alleles do not explain more than a fraction of the admixture signal. Thus, admixture mapping indicates a major, still-unidentified risk gene for prostate cancer at 8q24, motivating intense work to find it.

Full Text

Duke Authors

Cited Authors

  • Freedman, ML; Haiman, CA; Patterson, N; McDonald, GJ; Tandon, A; Waliszewska, A; Penney, K; Steen, RG; Ardlie, K; John, EM; Oakley-Girvan, I; Whittemore, AS; Cooney, KA; Ingles, SA; Altshuler, D; Henderson, BE; Reich, D

Published Date

  • September 19, 2006

Published In

Volume / Issue

  • 103 / 38

Start / End Page

  • 14068 - 14073

PubMed ID

  • 16945910

Pubmed Central ID

  • 16945910

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.0605832103


  • eng

Conference Location

  • United States