癌变·畸变·突变 ›› 2005, Vol. 17 ›› Issue (2): 101-103.doi: 10.3969/j.issn.1004-616x.2005.02.010

• 论著 • 上一篇    下一篇

DNA修复基因hOGG1多态与肺癌遗传易感性

王 威;吴拥军;吴逸明   

  1. 郑州大学公共卫生学院劳动卫生学及卫生毒理学教研室, 河南 郑州, 450052
  • 收稿日期:2004-11-23 修回日期:2004-12-21 出版日期:2005-03-30 发布日期:2005-03-30
  • 通讯作者: 吴逸明

Genetic Polymorphism in hOGG1 and Susceptibility to Lung Cancer

WANG Wei;WU Yong-jun;WU Yi-ming   

  1. Department of Occupational Health and Health Toxicology, College of Public Health, Zhengzhou University,Henan Zhengzhou 450052, China
  • Received:2004-11-23 Revised:2004-12-21 Online:2005-03-30 Published:2005-03-30
  • Contact: WU Yi-ming

摘要: 背景与目的: 研究修复8-羟基鸟嘌呤的hOGG1基因Ser326Cys多态与中国人肺癌易感性的关系。 材料与方法: 采用病例-对照分子流行病学方法,以PCR-限制性片段多态(Restriction fragment length polymorphism, RFLP)技术,对128名正常对照和124例肺癌患者hOGG1基因第326位点Ser/Cys多态性进行分析,并比较不同基因型与肺癌发病危险的关系。 结果: 对照组和肺癌组人群的Cys等位基因频率基本相同(37.5 %和39.9 %),但肺癌组的Cys/Cys基因型频率为19.4 %,高于对照组的10.2 %。与携带Ser/Ser或Ser/Cys基因型者比较,携带Cys/Cys基因型个体患肺癌的危险约增加1倍(=2.12,95 % CI=1.03~4.39)。 结论: hOGG1基因Ser326Cys多态可能与中国人肺癌易感性相关,可以作为肺癌遗传易感性标志物,用于易感个体的预警和预防。

关键词: hOGG1基因, 肺癌, 基因多态, 遗传易感性

Abstract: BACKGROUND & AIM: To examine the association between Ser326Cys polymorphism in hOGG1 gene, which is involved in the repair of 8-hydroxyguanine in damaged DNA, and investigate the risk of lung cancer in Chinese. MATERIAL AND METHODS: Ser326Cys polymorphism in hOGG1 gene was determined by PCR-RFLP among 128 normal controls and 124 patients with lung cancer. The association between this genetic polymorphism and the risk of the cancer was examined by a multivariate analysis. RESULTS: The Cys/Cys genotype of hOGG1 was found in 19.4 % of patients with lung cancer and in 10.2 % of the controls (P<0.05). Homozygosity for the Cys/Cys genotype significantly increased the risk of developing cancer, with the odds ratio adjusted for age, sex and smoking being 2.12 (95 %CI=1.03~4.39). CONCLUSION: Polymorphism of hOGG1 Ser326Cys may play a role in lung carcinogenesis.

Key words: hOGG1 gene, lung cancer, genetic polymorphism, susceptibility