Skp2和p27以及p21在浆液性卵巢癌的表达与临床意义

目的 研究Skp2和p27kiP1、p21WAF1的表达与浆液性卵巢癌临床病理特征的关系,探讨其相关性。方法 采用免疫组化(SP)法检测Skp2、p27kiP1、p21WAF1在124例浆液性卵巢肿瘤组织中的表达(良性腺瘤25例、交界性肿瘤19例、卵巢浆液性腺癌80例)。结果 (1)在卵巢癌中Skp2、p27k1P1、p21WAF1蛋白染色阳性率分别为47.5％(38/80)、35.0％(27/80)和38.8％(28/80),显著高于交界性分别为0、73.7％(14/19)、73.7％(14/19)]和良性卵巢肿瘤分别为0、80.0％(20/25)、80.0％(20/25)],差异有统计学意义(K-W 值分别为29.042、37.223、36.255,P均＜0.001)。(2) Skp2蛋白在卵巢癌组织中的表达与肿瘤组织分化程度(Z=-4.345,P＜0.001)、临床病理分期(Z=-3.391,P=0.001)和有、无淋巴转移(Z=-4.141,P＜0.001)有关。而p27kiP1蛋白在卵巢癌组织中的表达与肿瘤组织分化程度(Z=-2.337,P=0.019)、临床病理分期(Z=-2.559,P=0.01)和有、无淋巴转移(Z=-2.340,P=0.019)有关。p21WAF1蛋白在卵巢癌组织中的表达与肿瘤组织分化程度(Z=-2.437,P=0.015)、临床病理分期(Z=-1.762,P=0.078)和有、无淋巴转移(Z=-2.632,P=0.008)有关。(3) Skp2和p27kiP1、p21WAF1蛋白在卵巢癌组织中表达呈负相关(rs=-0.479、rs=-0.450,P均＜0.001)。结论 Skp2蛋白在卵巢癌组织中表达增加,与肿瘤的组织分化程度、临床分期、淋巴转移呈正相关。而p27kiP1、p21WAF1蛋白在卵巢癌组织中表达降低,与上述临床病理特征呈负相关;Skp2蛋白表达与p27kiP1、p21wAF1蛋白表达之间呈负相关。提示Skp2、p27 KiP1、p21WAF1蛋白在卵巢癌的发生、发展中起着重要作用。

Clinical significance and expression of Skp2, p27 and p21 in Ovarian Serous Cystadenocarcinomas

Objective To investigate the correlation of Skp2,p27kiP1 and p21WAF1 expression with the clinicopathological features of ovarian serous cystadenocarcinomas.Methods Expressions of Skp2 ,p27kiP1 and p21WAF1 were examined by immunohistochemical staining in 124 epithelial ovarian tumors (25 serous cystadenomas, 19 borderline serous cystadenomas, and 80 serous cystadenocarcinomas) Results(1) The expression of Skp2 in serous cystadenocarcinomas (47.5％) was significantly higher than that in borderline serous cystadenomas (0％) and serous cystadenomas (0％) (P ＜ 0.001) .The p27kiP1 expression in serous cystadenocarcinomas (35.0％) was significantly lower than that in borderline serous cystadenomas(73.7％) and serous cystadenomas (80.0％) .The p21WAF1 staining frequency in serous cystadenocarcinomas (38.8％) was significantly lower than in borderline serous cystadenomas (73.7％) and serous cystadenomas (80.0％) .(2) The Skp2 protein expression in serous cystadenocarcinomas was positively correlated with clinicopathological stage,histological differentiation degree and lymph node metastasis of the tumors.The p27kiP1, p21WAF1 protein expression in serous cystadenocarcinomas was reversely correlated with clinicopathological stage and histological differentiation degree of the tumors(Ps ＜ 0.05) .(3) The Skp2 protein expression in serous cystadenocarcinomas was reversely correlated with that of p27kiP1 , p21WAF1.Conclusion The Skp2 protein expression in serous cystadenocarcinomas was increased and positively correlated with the clinicopathological features of ovarian serous cystadenocarcinomas.Skp2 protein expression was reversely correlated with p27kip1 ,p21WAF1.Skp2 protein expression may play an important role in the development and progression of serous cystadenocarcinomas.