COX-2、E-cad的mRNA及蛋白在乳腺浸润性导管癌中的表达及意义

目的 探讨环氧化酶-2(COX-2)、上皮钙黏素(E-cad)的mRNA及蛋白在乳腺浸润性导管癌中的表达及临床意义.方法 采用原位杂交和免疫组织化学法(SP法)检测30例乳腺纤维腺瘤和70例乳腺浸润性导管癌中COX-2、E-cad的mRNA及蛋白的表达,并进行比较分析.结果 COX-2的mRNA和蛋白在乳腺纤维腺瘤和乳腺浸润性导管癌组织中的阳性率分别为30.0%、74.2%,23.3%、72.8%,二者比较差异均有统计学意义(P＜0.01).E-cad的mRNA和蛋白在乳腺纤维腺瘤和乳腺浸润性导管癌组织中的阳性率分别为93.3%、35.7%,90.0%、32.8%,二者比较差异亦均有统计学意义(P＜0.01).乳腺浸润性导管癌中COX-2的mRNA及蛋白表达均与淋巴结转移有关(P＜0.01,P＜0.05);E-cad的mRNA及蛋白表达均与淋巴结转移和组织学分期有关(P＜0.01,P＜0.05).乳腺浸润性导管癌中COX-2和E-cad的mRNA及蛋白表达的变化趋势均相反,经Spearman相关性检验分析发现两者mRNA及蛋白表达均呈负相关(r=-0.49,P＜0.01;r=-0.26,P＜0.05).结论 COX-2的mRNA及蛋白过表达,E-cad的mRNA及蛋白低表达均可促进癌细胞浸润和转移.

Expressions of COX-2, E-cad Gene and Protein in Invasive Ductal Carcinoma and the Clinical Significance

Objective To investigate the expressions of COX-2,E-cad gene and protein in invasive ductal carcinoma and to analyze the clinical significance.Methods The expressions of COX-2,E-cad gene and protein in breast fibroadenoma tissues(n=30) and invasive ductal carcinoma tissues(n=70) were detected by in situ hybrid-dization and immunoshistochemisty(SP method).Results The positive rates of COX-2 mRNA and protein in invasive ductal carcinoma were 30.0% and 74.2%,and 23.3% and 72.8% in breast fibroadenoma respectiv...