Open AccessPolymorphisms in the DNA repair gene XRCC1 associated with basal cell carcinoma and squamous cell carcinoma of the skin in a Korean population
Author(s) -
Kang Sang Yoon,
Lee Kwang Gil,
Lee Wooseung,
Shim Jeong Yun,
Ji Seung Il,
Chung Ki Wha,
Chung Yoon Kyu,
Kim Nam Keun
Publication year - 2007
Publication title -
cancer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.035
H-Index - 141
eISSN - 1349-7006
pISSN - 1347-9032
DOI - 10.1111/j.1349-7006.2007.00436.x
Subject(s) - xrcc1 , basal cell carcinoma , dna repair , biology , genotype , skin cancer , odds ratio , dna damage , allele , population , cancer , genetics , medicine , cancer research , microbiology and biotechnology , oncology , gene , basal cell , dna , single nucleotide polymorphism , environmental health
DNA in most cells is regularly damaged by endogenous and exogenous mutagens. Unrepaired damage can result in apoptosis or may lead to unregulated cell growth and cancer. Inheritance of genetic variants at one or more loci results in reduced DNA repair capacity. This hospital‐based case‐control study examined whether polymorphisms in the DNA repair gene X‐ray repair cross‐complementing groups 1 ( XRCC1 ) (Arg194Trp[C > T], Arg280His[G > A] and Arg399Gln[G > A]) play a role in susceptibility to skin cancer. We genotyped these polymorphisms for 212 histopathologically confirmed skin cancer cases ( n = 114 basal cell carcinoma, n = 98 squamous cell carcinoma) and 207 age‐ and sex‐matched healthy control cases in Korea. We found that individuals with the Arg/Gln and Arg/Gln + Gln/Gln genotypes at XRCC1 Arg399Gln(G > A) had an approximately 2‐fold increased risk of basal cell carcinoma compared to individuals with the Arg/Arg genotype (adjusted odds ratio [AOR] = 2.812, 95% confidence interval [CI] 1.32–5.98, and AOR = 2.324, 95% CI 1.11–4.86). However, we observed that the 194Trp allele of the Arg194Trp(C > T) polymorphism was inversely associated with squamous cell carcinoma risk (Trp/Trp, AOR = 0.06, 95% CI 0.006–0.63). Our data suggest that the Arg194Trp and Arg399Gln polymorphisms may be differentially associated with skin cancer risk. ( Cancer Sci 2007; 98: 716–720)