Polymorphisms in ERCC1 and XPF genes and risk of gastric cancer in an eastern Chinese population.

Journal Article (Journal Article)

BACKGROUND: Inherited functional single nucleotide polymorphisms (SNPs) in DNA repair genes may alter DNA repair capacity and thus contribute to cancer risk. METHODS: Three ERCC1 functional SNPs (rs2298881C>A, rs3212986C>A and rs11615G>A) and two XPF/ERCC4 functional SNPs (rs2276466C>G and rs6498486A>C) were genotyped for 1125 gastric adenocarcinoma cases and 1196 cancer-free controls by Taqman assays. Odds ratios (OR) and 95% confidence intervals (CI) were used to estimate risk associations, and false-positive report probabilities (FPRP) were calculated for assessing significant findings. RESULTS: ERCC1 rs2298881C and rs11615A variant genotypes were associated with increased gastric cancer risk (adjusted OR=1.33, 95% CI=1.05-1.67 for rs2298881 AC/CC and adjusted OR=1.23, 95% CI=1.05-1.46 for rs11615 AG/AA, compared with their common genotype AA and GG, respectively). Patients with 2-3 ERCC1 risk genotypes had significant increased risk (adjusted OR=1.56, 95% CI=1.27-1.93), compared with those with 0-1 ERCC1 risk genotypes, and this risk was more significantly in subgroups of never drinkers, non-gastric cardia adenocarcinoma (NGCA) and clinical stage I+II. All these risks were not observed for XPF SNPs. CONCLUSIONS: These findings suggest that functional ERCC1 SNPs may contribute to risk of gastric cancer. Larger and well-designed studies with different ethnic populations are needed to validate our findings.

Full Text

Duke Authors

Cited Authors

  • He, J; Xu, Y; Qiu, L-X; Li, J; Zhou, X-Y; Sun, M-H; Wang, J-C; Yang, Y-J; Jin, L; Wei, Q-Y; Wang, Y

Published Date

  • 2012

Published In

Volume / Issue

  • 7 / 11

Start / End Page

  • e49308 -

PubMed ID

  • 23166636

Pubmed Central ID

  • PMC3499547

Electronic International Standard Serial Number (EISSN)

  • 1932-6203

Digital Object Identifier (DOI)

  • 10.1371/journal.pone.0049308


  • eng

Conference Location

  • United States