COX-2和NET-1基因蛋白在宫颈癌中表达的意义
The Significance of Expression of COX-2 and NET-1 Gene Protein in Cervical Cancer
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摘要: 目的研究环氧合酶-2(COX-2)和NET-1基因蛋白在宫颈癌中的表达及与宫颈癌生物学行为的关系。方法采用免疫组化SP法,检测COX-2和NET-1基因蛋白在50例宫颈鳞癌组织、36例宫颈上皮内瘤样病变(CINⅠ~Ⅲ级)及5例正常宫颈组织中的表达。结果COX-2表达在宫颈浸润癌中明显高于CINⅢ级和早期浸润癌(P<0.01),而在CINⅢ级与早期浸润癌中无显著差异(P>0.05);COX-2阳性表达在低、中分化癌中均显著高于高分化癌(P<0.01);在淋巴结转移组中显著高于无淋巴结转移组(P<0.01)。NET-1在CINⅢ级中表达显著高于CINⅠ级和CINⅡ级(P<0.01)。而CINⅢ级和宫颈癌比较无显著差异(P>0.05)。NET-1阳性表达在淋巴结转移组明显高于无淋巴结转移组(P<0.01)。宫颈癌中COX-2表达与NET-1表达呈正相关(P<0.01)。结论COX-2表达上调是宫颈癌演进中的常见的分子事件。可作为判断宫颈癌淋巴结转移的一个指标。NET-1的过表达可能是宫颈癌发生的早期分子事件,有可能成为宫颈癌早期诊断的组织标记。在宫颈癌中COX-2和NET-1基因蛋白之间有协同作用。Abstract: Objective To study the expression of COX-2 and NET-1 gene protein in cervical cancer,and investigate the relationship between the expression and biologic behavior of cervical cancer. Methods Immunohistochemical SP method was used to detect the expression of COX-2 and NET-1 in 50 cases of cervical invasive squamous cell carcinomas,36 cases of cervical intraepithelial neoplasias(CINⅠ～Ⅲ) and 5 cases of normal cervical tissues. Results The positive expression rate of COX-2 in invasive carcinoma of cervix was si...
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