Genetic polymorphisms of XRCC1 and leukemia risk: a meta-analysis of 19 case-control studies. Academic Article Review uri icon



  • Case-Control Studies
  • Genetic Predisposition to Disease
  • Humans

MeSH Major

  • DNA-Binding Proteins
  • Leukemia
  • Polymorphism, Genetic


  • Three common X-ray repair cross-complementing groups 1 (XRCC1) polymorphisms, Arg399Gln, Arg194Trp, and Arg280His, have been reported to be implicated in the development of leukemia. However, previous results from different studies were inconsistent. Consequently, we performed a meta-analysis in order to accurately evaluate the association between XRCC1 Arg399Gln, Arg194Trp, and Arg280His polymorphisms and leukemia risk. Through computerized searching of PubMed, ISI Web of Knowledge, Cochrane, EBSCO, and OpenGrey databases, and manually searching relevant references, a total of 19 studies with 3387 cases and 6168 controls for Arg399Gln (G>A) polymorphism, 12 studies with 2043 cases and 4550 controls for Arg194Trp (C>T), and 6 studies with 1445 cases and 1905 controls for Arg280His (G>A) were collected to perform meta-analysis and stratified analysis to explore the associations between these variants and leukemia susceptibility. Based on three genetic models, the codominant model, dominant model and recessive model, odds ratios (ORs) as well as their 95% confidence intervals (CIs) were used to evaluate the association strength between XRCC1 genotypes and leukemia risk. With respect to overall leukemia susceptibility, no association was detected. In stratified analyses by tumor type, Arg399Gln was associated with higher acute lymphoblastic leukemia (ALL) risk (AA vs. GG, OR  =  1.50, 95% CI: 1.11-2.02; AA+GA vs. GG, OR  =  1.35, 95% CI: 1.02-1.78). Additionally, Arg399Gln, Arg194Trp, and Arg280His may influence the susceptibilities of some leukemia type and race populations. This meta-analysis indicates these three polymorphisms of XRCC1 do not associate with overall leukemia risks but could be associated with the risks for some specific subgroups.

publication date

  • 2013

has subject area

  • Case-Control Studies
  • DNA-Binding Proteins
  • Genetic Predisposition to Disease
  • Humans
  • Leukemia
  • Polymorphism, Genetic



  • Journal Article
  • Meta-Analysis



  • eng

PubMed Central ID

  • PMC3868451

Digital Object Identifier (DOI)

  • 10.1371/journal.pone.0080687

PubMed ID

  • 24363792

Additional Document Info

start page

  • e80687


  • 8


  • 11