The association between the Lys751Gln polymorphism in the XPD gene and the risk of bladder cancer

Mol Biol Rep. 2014;41(4):2629-34. doi: 10.1007/s11033-014-3121-x. Epub 2014 Feb 18.

Abstract

The Lys751Gln polymorphism in the XPD gene have been suggested as a risk factor for bladder cancer, however the results were inconclusive. The aim of the current study is to assess the association by meta-analysis. A total of 15 case-control studies concerning the association between the XPD Lys751Gln polymorphism and bladder cancer risk were included in the meta-analysis. The results suggested that the Lys751Gln polymorphism was not associated with an increased risk of bladder cancer in the dominant model (OR = 1.03, 95 % CI 0.95-1.11, P = 0.53 for Lys/Gln+Gln/Gln vs. Lys/Lys) in overall analysis. In the subgroup analysis by ethnicity, no significant association was found in Caucasians or Asians. Other comparatives suggested a slight significant association between the polymorphism with the risk of bladder cancer in the recessive comparative (OR = 1.14, 95 % CI 1.02-1.29, P = 0.03). The current meta-analysis indicated that the Lys751Gln polymorphism in the XPD gene might be a risk factor for bladder cancer. In the future, more large-scale case-control studies are needed to validate our results.

Publication types

  • Meta-Analysis

MeSH terms

  • Amino Acid Substitution
  • Case-Control Studies
  • Codon
  • DNA-Binding Proteins / genetics*
  • Endonucleases / genetics*
  • Ethnicity / genetics
  • Genetic Association Studies
  • Genetic Predisposition to Disease*
  • Humans
  • Nuclear Proteins / genetics*
  • Odds Ratio
  • Polymorphism, Genetic*
  • Publication Bias
  • Risk
  • Transcription Factors / genetics*
  • Urinary Bladder Neoplasms / genetics*

Substances

  • Codon
  • DNA excision repair protein ERCC-5
  • DNA-Binding Proteins
  • Nuclear Proteins
  • Transcription Factors
  • Endonucleases