Prostate cancer susceptibility is mediated by interactions between exposure to ultraviolet radiation and polymorphisms in the 5' haplotype block of the vitamin D receptor gene

Cancer Lett. 2007 Mar 18;247(2):328-35. doi: 10.1016/j.canlet.2006.05.012. Epub 2006 Jul 3.

Abstract

Vitamin D receptor (VDR) polymorphisms are prostate cancer risk candidates. We determined if SNPs in haplotype block sub-regions C2 (SNPs C2-1, G/C(3436), C2-2, A/G(3944)) or C1 (C1-1, C/T(20965), C1-2, C/T(30056)) are associated with risk in an ultraviolet radiation (UVR)-dependent manner. In men with very low exposure, SNPs in both sub-regions were associated with risk. Various haplotypes in haplotype block C including G(3436)-A(3944)-C(20965)-C(30056), (G or C)-A-C-C and G-A-(C or T)-C were significantly associated with increased risk (odds ratios between 1.95 and 2.37). These findings suggest various block C SNPs are associated with prostate cancer risk via a mechanism involving exposure to sunlight.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • DNA Primers
  • Genotype
  • Haplotypes*
  • Humans
  • Male
  • Polymorphism, Single Nucleotide*
  • Prostatic Neoplasms / genetics*
  • Receptors, Calcitriol / genetics*
  • Ultraviolet Rays*

Substances

  • DNA Primers
  • Receptors, Calcitriol