雌、孕激素受体在子宫内膜良恶性肿瘤组织中的表达及其意义

目的 检测分析雌激素受体(ER)、孕激素受体(PR)在子宫内膜良恶性肿瘤组织中的表达情况,探讨ER、PR与子宫内膜癌发生、发展的关系.方法 采用免疫组织化学SP法对58例子宫内膜癌、37例子宫内膜非典型增生,25例子宫内膜单纯性增生,25例正常子宫内膜标本进行ER和PR的检测.结果 ER、PR的阳性表达率在正常子宫内膜分别为24.0%、20.0%;单纯性增生52.0%、44.0%;非典型增生70.3%、64.9%;子宫内膜癌62.1%、56.8%.正常内膜到单纯型增生及非典型增生阳性表达率呈阶梯样上升,子宫内膜癌略低于非典型增生,两者均明显高于正常内膜(P＜0.05).子宫内膜癌ER、PR强阳性表达率在不同组织分级中高分化Ⅰ级53.8%、53.8%;中分化Ⅱ级27.8%、22.2%,低分化Ⅲ级7.1%、0,低分化低表达.高分化高表达,Ⅰ级与Ⅲ级差异有统计学意义(P＜0.05).ER、PR强阳性表达率在年龄≤50岁患者41.9%、38.7%,＞50岁25.9%、22.2%,≤50岁组高于＞50岁组,但差异无统计学意义.临床各分期之间差异无统计学意义(P＞0.10).结论 正常子宫内膜到非典型增生、癌变过程中出现ER、PR异常高表达.ER、PR表达高低与癌组织分化程度密切相关,可能与子宫内膜癌的发生、预后有一定关系.

Expression of ER and PR in endometrial tumor

Objective To detect and analyze the expression of ER and PR in endometrial benign and malignant tumor,and to study its correlation of ER and PR with the establishment and development of endometrial carcinoma.Methods The expressions of ER and PR were examined by immunohistochemical method in 58 eases of endometrial carcinoma,37 cases of atypism endometrial hyperplasia,25 cases of simple endometrial carcinoma.and 25 eases of normal endometrium.Results The expressions of ER and PR were higher in normal endometrium,atypism endometrial hyperplasia and endometrial carcinoma.They were lower in endometrial carcinoma than in atypism endometrial hyperplasia,both were higher than that in normal endometrium(P＜0.05).The rates of expression in ER and PR increased gradually from histological grade Ⅰ,Ⅱto Ⅲ.The expressions of ER and PR in histological grade Ⅰ were significantly different from that in histologic grade Ⅲ(P＜0.05).There were no correlation between expressions and ages,which expression rates less than 50 years were higher than those above 50 years.Its expression W88 not related to different clinic grade(P＞0.10).Conclusion The expressions of ER and PR increased gradually from normal endometrium,atypism endometrial hyperplasia to endometrial carcinoma.ER and PR expressions were obviously related to histologic degree.It maybe related to establishment and development of endometrial carcinoma.