Polymorphisms of the DNA repair gene xeroderma pigmentosum group A and risk of primary lung cancer.
Polymorphisms in DNA repair genes may be associated with differences in the repair capacity of DNA damage and may influence an individual's susceptibility to smoking-related cancer. We investigated the association between two polymorphisms of the DNA repair gene XPA and risk of lung cancer in the Korean population. Two XPA polymorphisms (A23G and G709A) were typed in 265 lung cancer patients and 185 healthy controls who were frequency-matched on age and sex. The XPA G709A polymorphism was not detected in cases and controls. The XPA 23 GG genotype was associated with a significantly decreased risk for lung cancer [odds ratio (OR), 0.56; 95% confidence interval (CI), 0.35-0.90] when the combined AA and AG genotype was used as the reference. The reduction in risk for the XPA 23 GG genotype was significant in males (OR, 0.51; 95% CI, 0.30-0.86), younger individuals (OR, 0.39; 95% CI, 0.19-0.80), and current smokers (OR, 0.46; 95% CI, 0.25-0.83). These results suggest that the XPA A23G polymorphism contributes to genetic susceptibility for lung cancer.
Park
Jae Yong
JY
Department of Internal Medicine, Kyungpook National University Hospital, Taegu 700-412, Korea. jaeyong@kyungpook.ac.kr
Park
Sun Hee
SH
Choi
Jin Eun
JE
Lee
Su Yeon
SY
Jeon
Hyo-Sung
HS
Cha
Sung Ick
SI
Kim
Chang Ho
CH
Park
Jae-Ho
JH
Kam
Sin
S
Park
Rang Woon
RW
Kim
In-San
IS
Jung
Tae Hoon
TH
D000368:Aged; D016022:Case-Control Studies; D004249:DNA Damage; D004260:DNA Repair; D004268:DNA-Binding Proteins / Q000235:genetics*; D005260:Female; D006801:Humans; D007723:Korea; D008175:Lung Neoplasms / Q000209:etiology / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D011110:Polymorphism, Genetic; D012307:Risk Factors; D051760:Xeroderma Pigmentosum Group A Protein
D004268:DNA-Binding Proteins; C497314:XPA protein, human; D051760:Xeroderma Pigmentosum Group A Protein