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山东大学学报(医学版) ›› 2014, Vol. 52 ›› Issue (3): 27-32.doi: 10.6040/j.issn.1671-7554.0.2013.483

• 基础医学 • 上一篇    下一篇

APC和β-catenin在食管胃连接部病变中的表达及意义

李帅1,吴洪磊1,周成军2,郭建强1   

  1. 山东大学第二医院 1.消化内科; 2.病理科,山东 济南 250033
  • 收稿日期:2013-08-06 出版日期:2014-03-10 发布日期:2014-03-10
  • 通讯作者: 郭建强。E-mail:jianqiangg@sdu.edu.cn

Expressions and effects of APC and β-catenin in lesions of  the esophagogastric junction

LI Shuai1, WU Honglei1, ZHOU Chengjun2, GUO Jianqiang1   

  1. 1. Department of Gastroenterology; 2. Department of Pathology, Second Hospital of Shandong University,
    Jinan 250033, Shandong,  China
  • Received:2013-08-06 Online:2014-03-10 Published:2014-03-10

摘要:

目的  研究肠腺瘤样息肉蛋白(APC)和β-连环蛋白(β-catenin)在Barrett′s食管肠化组织(BEM)、贲门肠化组织(CM)及食管胃连接部腺癌(AEG)中的表达,探讨其癌变的机制。方法  分别应用免疫组织化学法、RT-PCR及Western blotting法检测BEM(n=33)、CM(n=36)及AEG(n=42)组患者病变组织中APC和β-catenin的表达水平。结果  APC表达水平随着病变恶性程度的增高而降低;β-catenin在不同病变中定位位点有所不同,可能与APC蛋白的表达水平差异化有关;APC和β-catenin在BEM、CM组织中表达水平无明显差异,且在相关性研究中发现BEM、CM存在相似的表达特点。结论  BEM与CM可能系同一种病变类型,是发生AEG的高危因素之一。

关键词: 胃食管连接部腺癌;Barrett&prime, s食管肠化组织;贲门肠化组织;肠腺瘤样息肉蛋白;&beta, -连环蛋白

Abstract:

Objective  To study the expressions of adenomatous polyposis coli (APC) and β-catenin in lesions of Barrett′s esophagus intestinal metaplasia (BEM), cardia intestinal metaplasia (CM) and adenocarcinoma of the esophagogastric (AEG), and to investigate the mechanism of carcinogenesis. Methods  BEM specimens (n=33), CM specimens (n=36), and AEG specimens (n=42) were collected to examine the expressions of APC and β-catenin with immunochemical method, RT-PCR and Western blotting.  Results  The expression of APC decreased with the increasing malignancy of lesions. The different positioning sites of β-catenin might be related to the expression of APC in different lesions. The expressions of APC and β-catenin in the BEM group and CM group had no significant difference, and subsequent correlation studies discovered expressions of APC and β-catenin were similar in the BEM group and CM group. Conclusion  BEM and CM may be the same types of lesions, which are risk factors of AEG.

Key words: Adenocarcinoma of the esophagogastric junction, Barrett’s esophagus intestinal metaplasia, β-catenin, Cardia intestinal metaplasia, Adenomatous polyposis coli

中图分类号: 

  • R735.1
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