华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

舌癌组织中p53和c-myc的表达及端粒酶活性的实验研究

方泽强,李慧增,王常勇,杨军,周树夏   

  1. 710032 第四军医大学口腔医院口腔颌面外科(方泽强,周树夏),军事医学科学院(王常勇),第三军医大学西南医院口腔科(李慧增,杨 军)
  • 收稿日期:2003-08-25 修回日期:2003-08-25 出版日期:2003-08-20 发布日期:2003-08-20
  • 基金资助:
    本课题为国家自然科学基金青年基金资助项目(编号39900036)

The Experimental Study on Telomerase Activity and Expression of p53 and c-mycGenes in Tongue Cancer

FANG Zeqiang*,LIHuizeng,WANG Changyong,et al   

  1. *Department ofStomatology andMaxillofacialSurgery,Stomatological College ofthe Fourth MilitaryMedical University,Xi′an710032,China
  • Received:2003-08-25 Revised:2003-08-25 Online:2003-08-20 Published:2003-08-20

摘要:

目的 探讨端粒酶和原癌基因c-myc和p53在舌癌组织中的表达以及相互作用,分析它们与舌癌组织临床病理特征之间的可能关系。方法 采用原位杂交技术和端粒末端重复放大技术(TRAP)分别检测c-myc和 p53在舌癌组织中的表达以及舌癌组织中端粒酶的活性。结果 在低分化的舌癌组织中端粒酶活性明显升高 (P<0·05),c-myc在低分化1级舌癌组织中阳性表达显著升高(P<0·05);p53在舌癌伴淋巴结转移患者中阳性表达明显降低(P<0·05)。结论 端粒酶在舌癌的发生发展过程中可能起重要作用,c-myc和p53在舌癌发生过程中对端粒酶的激活发挥重要影响。

关键词: 端粒酶, c-myc, p53, 舌癌, 原位杂交

Abstract:

Objective To studytelomerase activity and expression of oncogenes c-mycand p53 in tongue cancer, analyse the interaction among them, and assess their possible correlations with tongue cancer clinicopathological features.Methods To detective the telomerase activity by TRAP and examine the positive expression of c-mycand p53 in tongue cancer by hybridization in situ.Results A high telomerase activity existed in lower differentiated tongue cancer (P<0·05); the positive expression of c-mycincreased significantly in lowergrade tongue cancer (P<0·05) and the positive expression of p53 decreased increasingly in tongue cancer accompanied with lymph node metastasis (P<0·05).Conclusion Telomerase may play a key role in the tumori- genesis of tongue cancer. Meantime, c-mycand p53 exerts important effect on telomerase activation during the course of tongue cancer generation and development.

Key words: telomerase, c-myc, p53, tongue cancer, hybridizationin situ