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Expression of TGF-β1 and CDK4 in Normal Esophageal Mucosa and Esophageal Squamous Cell Carcinoma
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- Author:
- No author available
- Journal Title:
- JOURNAL OF CHINESE PHYSICIAN
- Issue:
- 1
- DOI:
- 10.3760/cma.j.issn.1008-1372.2004.01.007
- Key Word:
- 食管鳞癌;TGF-β1;CDK4;免疫组织化学
Abstract： 目的研究食管鳞癌中TGF-β1、CDK4的表达.方法用免疫组织化学方法(SABC法)研究TGF-β1和CDK4蛋白表达,显微镜下计数阳性细胞指数(LI),并进行统计分析.结果 1、TGF-β1的表达:正常食管黏膜阳性率达20%(2/10),食管鳞癌组织62%(31/50)两者差异有显著性(P＝0.05);LI分别为(5.588±6.186)及(29.469±27.481),后者高于前者(P＝0.01),正常食管黏膜弱阳性2例.2.CDK4表达:正常食管黏膜组织阳性率为10%(1/10),食管鳞癌组织为50%(25/50),两者比较差异有显著性(P＜0.05),LI分别为(3.158±4.400)、(24.011±26.965),(P＝0.05)1例正常食管黏膜阳性者为弱阳性(LI＜25%).结论食管鳞癌中存在TGF-β1的高表达,与正常粘膜差别显著,TGF-β1的检测有辅助诊断作用;CDK4在食管鳞癌中高表达,促进了细胞生长和肿瘤发展(G1→S过渡),反映了肿瘤的生物学特性,是食管癌发生发展中的重要事件.
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