uPA、uPAR与p38在子宫内膜癌组织的表达及意义

目的:探讨尿激酶型纤溶酶原激活物(uPA)与其受体uPAR及丝裂原活化蛋白激酶p38在子宫内膜癌组织的表达及相关性,并结合临床病理特征分析其在子宫内膜癌浸润、侵袭转移过程中的作用。方法:采用免疫组织化学方法(PV-6000二步法)检测12例正常子宫内膜(对照组)、20例子宫内膜增生组织(内膜增生组)及50例子宫内膜癌组织(内膜癌组)中uPA、uPAR及p38的表达,并研究其相关性,分析探讨各因子与子宫内膜癌临床病理分期、组织学分级、组织学类型等的关系。结果:(1)内膜癌组患者uPA、uPAR、p38阳性表达率均显著高于内膜增生组及对照组,差异有统计学意义(P<0.05);内膜增生组与对照组差异无统计学意义(P>0.05);(2)内膜癌组患者uPA和uPAR、p38的表达与临床病理分期、组织学分级、肌层浸润深度及有无淋巴结转移有关,差异有统计学意义(P<0.05);而与患者病理类型不相关(P>0.05);(3)子宫内膜癌组织uPA与uPAR的表达呈正相关(r=0.389,P<0.05);uPA与p38的表达也呈明显正相关(r=0.353,P<0.05)。结论:uPA与uPAR在子宫内膜癌发生发展侵袭转移过程中起着协同作用,p38MAPK信号通路在此过程中可能参与调节uPA,促进癌细胞浸润转移,因此uPA、uPAR、p38可能成为推测子宫内膜癌预后的重要参考指标。

Expression and correlation of urokinase-type plasminogen activator(uPA)and its receptor(uPAR)and mitogen activated protein kinase(MAPK)p38 in endometrial carcinomas.

Objective:To investigate the expression and correlation of urokinase-type plasminogen activator(uPA)and its receptor(uPAR),mitogen activated protein kinase(MAPK)p38 in endometrial carcinomas,and to analyze their effect in the process of invasion and metastasis of the endometrial carcinomas combining the clinicopathological features.Methods:12 cases of normal endometrium,20 cases of atypical hyperplasia,50 cases of endometrial cancer specimens were examined and marked through immunohistochemical PV-6000 meth...