title: The XRCC1 Arg194Trp polymorphism is significantly associated with lung adenocarcinoma: a case-control study in an Eastern European Caucasian group.
abstract: DNA repair plays an important role in maintaining the integrity of the genome by repairing DNA damage induced by carcinogens. Certain genetic polymorphisms that occur in DNA-repair genes may affect the ability to repair DNA defects, and may represent a risk factor in carcinogenesis. The gene XRCC1 is involved in DNA repair. The purpose of our study was to investigate the association between XRCC1 Arg194Trp and Arg399Gln polymorphisms and the risk of lung cancer in a Romanian population. We recruited 222 healthy controls and 102 patients with lung cancer. Genotypes were determined by multiplex polymerase chain-reaction restriction fragment-length polymorphism. Statistical analysis (odds ratio, recessive model) revealed an increased risk for lung cancer for the homozygous 194Trp genotype (χ (2)=0.186, odds ratio 10.667, 95% confidence interval 1.309-86.933; P=0.007). Also, we found an association between the 194Trp allele and women with lung adenocarcinoma. In conclusion, the results of the study place the XRCC1 Arg194Trp polymorphism among independent risk factors for developing lung cancer.
authors.affiliation: Department of Molecular Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Andreea
authors.initials: A
authors.lastname: Cătană
authors.affiliation: Department of Pneumology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Monica
authors.initials: M
authors.lastname: Pop
authors.affiliation: Department of Pneumology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Bianca Domokos
authors.initials: BD
authors.lastname: Hincu
authors.affiliation: Department of Molecular Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Ioan V
authors.initials: IV
authors.lastname: Pop
authors.affiliation: Department of Molecular Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Felicia M
authors.initials: FM
authors.lastname: Petrişor
authors.affiliation: Department of Internal Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Mihai D
authors.initials: MD
authors.lastname: Porojan
authors.affiliation: Department of Molecular Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
authors.forename: Radu A
authors.initials: RA
authors.lastname: Popp
keywords: XRCC1 Arg194Trp; XRCC1 Arg399Gln; lung cancer