华西口腔医学杂志

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口腔鳞癌组织hMSH2外显子突变筛选的初步研究

程斌,夏鸿彬,李春阳,洪筠,杨灵澜   

  1. 510060 中山大学光华口腔医学院
  • 收稿日期:2002-04-25 修回日期:2002-04-25 出版日期:2002-04-20 发布日期:2002-04-20
  • 基金资助:

    本课题为国家自然科学基金(编号39700159)和广东省卫生厅基金(编号A1998231)资助项目

The Detection of Exon Mutation of hMSH2 in Tissues of Oral Squamous Cell Carcinoma

Cheng Bin, Xia Hongbin, Li Chunyang, et al   

  1. Guanghua College of Stomatology,Sun Yat-Sen University
  • Received:2002-04-25 Revised:2002-04-25 Online:2002-04-20 Published:2002-04-20

摘要:

目的:探讨错配修复基因hMSH2在口腔鳞癌发生发展中的作用。方法:应用PCR-SSCP法检测30例口腔粘膜鳞状细胞癌组织标本中hMSH2外显子5、6、7、8、9、12的突变情况。结果:在30例口腔鳞癌中,hMSH2六个外显子 PCR均扩增到目的DNA片段;SSCP检测未检出hMSH2六个外显子发生突变。结论:口腔鳞癌hMSH2外显子结构改变模式与遗传性肿瘤不同;错配修复基因在口腔鳞癌发生发展中的作用值得探讨。

关键词: 口腔鳞状细胞癌, 错配修复基因, hMSH2, 突变

Abstract:

Objective:The purpose of this study was to detect the exon mutation of mismatch repair gene hMSH2 in tissues of oral squa- mous cell carcinoma (OSCC) and investigate the role of hMSH2 in the pathogenesis of OSCC.Methods:The mutations of hMSH2 exon 5, 6, 7, 8, 9 and 12 in the tissues of 30 human OSCC cases were analyzed using PCR-SSCP.Results:The six exons of hMSH2 were amplified successfully by using PCR technique, while no mutations in these exons were identified by using PCR-SSCP.Conclusion:The structure changes of hMSH2 exons in OSCC may be different from that in hereditary non-polyposis colorectal carcinoma (HNPCC); the role of hMSH2 in carcinogenesis of OSCC needs to be evaluated further.

Key words: oral squamous cell carcinoma, mismatch repair, hMsh2, mutation