基础医学与临床 ›› 2012, Vol. 32 ›› Issue (10): 1194-1197.

• 研究论文 • 上一篇    下一篇

GSTT1基因型和吸烟状况与肺癌易感性关系

刘京男1,周彩存2,朴红梅3,安昌善1   

  1. 1. 延边大学附属医院
    2. 上海市肺科医院
    3. 延边大学医学院附属医院呼吸内科
  • 收稿日期:2011-07-13 修回日期:2012-01-17 出版日期:2012-10-05 发布日期:2012-09-28
  • 通讯作者: 安昌善 E-mail:cs_an2003@yahoo.com.cn

Relationship Between the Genetic Polymorphism of GSTT1 Gene 、smoking and Lung Cancer Susceptibility

  • Received:2011-07-13 Revised:2012-01-17 Online:2012-10-05 Published:2012-09-28

摘要: 目的:探讨GSTT1基因多态性与肺癌遗传易感性的关系及GSTT1基因多态性和性别、吸烟在肺癌易感性中的交互作用。方法:采用病例对照和PCR-RFLP)方法对100例肺癌患者和135例健康对照者外周血的GSTT1基因型进行检测,并评价其与吸烟和肺癌遗传易感性的关系。 结果:(1)GSTT1(-)基因型在肺癌组和对照组分别为57%和41.5%,二者间有显著性差异( P=0.019)。GSTT1(-)基因型的吸烟者较不吸烟者患肺癌的风险增加3.643倍(P=0.016)。吸烟者携带GSTT1(-)基因型较携带GSTT1(+)基因型患肺癌的风险增加3.286倍(P=0.006)。吸烟量≥20包年的人群中携带GSTT1(-)基因型者较携带 GSTT1(+)基因型者患肺癌的风险增加7.81倍(P=0.002)。结论:GSTT1(-)基因型增加肺癌遗传易感性,吸烟与GSTT1(-)基因型间存在互交作用,二者协同增加患肺癌的风险性。吸烟量越大且携带GSTT1(-)基因型者患肺癌的风险越高

关键词: GSTT1, 基因多态性, 肺癌, 肺癌易感性, 吸烟

Abstract: Objective: To investigate the association between the genetic polymorphism of GSTT1 and the susceptibility to lung cancer and a synergetic interactions between smoking and genetic polymorphisms on lung cancer susceptibility.Methods: A case-control study and PCR—RFLP techniques were used to identify GSTT1 genotype in 100 cases of lung cancer and 135 controls.Results: The frequency of GSTT1(-) genotype in lung cancer group and controls was 57%(57/100) and 41.5%(56/135) respectively(P=0.016). There were no gender differences of GSTT1 (-) genotype distribution. In people with GSTT1(-) genotype ,smoking markedly increased the risk for lung cancer(P=0.016).In smokers,GSTT1 (-) genotype significantly increased the risk for lung cancer(P=0.006).In smokers≥ 20 packyears,GSTT1 (-) genotype remarkably increase the risk of lung cancer (P=0.002).Conclusions:The distribution frequency of GSTT1(-) genotype was higher in lung cancer,which Might increase the genetic susceptibility to lung cancer.There might be a synergetic interaction between smoking and GSTT1(-) genotype.

Key words: GSTT1, Gene Polymorphism, Lung Cancer, Susceptibility, smoke

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