首都医科大学学报 ›› 1999, Vol. 20 ›› Issue (2): 95-98.

• 论著 • 上一篇    下一篇

食道鳞癌凋亡相关基因表达及原位凋亡的同步检测

战烨1, 曾辉1, 张勇2, 王植平2, 赵相印1   

  1. 1. 首都医科大学附属北京同仁医院内科;2. 北京同仁医院病理科
  • 收稿日期:1998-03-20 修回日期:1900-01-01 出版日期:1999-04-15 发布日期:1999-04-15

Multiple Apoptosisrelated Genes Expression and in Situ Detection of Apoptosis in Human Esophageal Squamous Cell Carcinoma

Zhan Ye1, Zeng Hui1, Zhang Yong2, Wang Zhiping2, Zhao Xiangyin1   

  1. 1. Department of Internal Medicine, Beijing Tongren Hospital, Affiliate of Capital University of Medical Sciences;2. Depatment of Pathology,Beijing Tongren Hospital
  • Received:1998-03-20 Revised:1900-01-01 Online:1999-04-15 Published:1999-04-15

摘要: 用免疫组织化学染色法对食道鳞癌标本进行凋亡相关基因P53、Fas、Bcl-2和Bax表达的检测,同时采用TUNEL方法原位探测细胞凋亡。检测结果显示:①52例食道鳞癌标本中,P53、Fas、Bcl-2、Bax和细胞凋亡的阳性率分别是61.5%、61.5%、69.2%、98.1%和28.8%.②18例对照标本中相应指标的阳性率分别为16.7%、100%、38.9%、100%和61.1%.③比较2组标本,肿瘤组P53和Bcl 2的阳性率显着高于对照组(P<0.01及P<0.05),肿瘤组Fas与TUNEL的阳性率显着低于对照组(P<0.01及P<0.05).④以上4种蛋白与细胞凋亡存在与否无独立相关性。上述结果表明,在食道癌变中,不仅存在细胞凋亡功能的减低,同时伴有多种凋亡相关基因的表达异常。凋亡功能的异常,可能是多基因共同调控的结果。

关键词: 食道肿瘤, 鳞癌, 细胞凋亡, 基因表达

Abstract: By means of immunohistochemistry and TUNEL, the expression of four apoptosisrelated genes and apoptosis ability were examined in situ in human esophageal squamous cell carcinomas. Results: In 52 cases of tumor group, the positive rate (PR) of P53, Fas, Bcl-2 and Bax expression was 61.5%, 61.5%, 69.2% and 98.1%,respectively. The PR of apoptotic cell was 28.8%. In 18 cases of control group, the corresponding parameters were 16.7%, 100%, 38.9%, 100% and 61.1%, respectively. As compared with control group, the PR of P53, Bcl-2 expression were significantly higher in tumor group (P<0.01 and P<0.05), with the significantly decreased PR of Fas expression and apoptotic cell (P<0.01 and P<0.05). No correlation was showed between each protein expression of four and apoptosis detection. These findings implicate that, during the course of carcinogenesis in esophageal squamous cell carcinomas, the reduction of apoptosis ability is prominent, accompanied with abnormal expression of multiple apoptosisrelated genes

Key words: esophageal neoplasms, squamous cell carcinoma, apoptosis, gene expression

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