Abstract
目的探讨p21WAF1、细胞周期蛋白D1(cyclin D1)和pRb在膀胱移行细胞癌(BTCC)中的表达及相互关系和其意义.方法应用免疫组织化学SP法检测57例BTCC患者癌组织中p21WAF1、Cyclin D1和pRb的蛋白表达.结果 p21WAF1、cyclin D1和pRb的阳性表达率分别为36.8%、49.1%和45.6%,p21WAF1随病理分级升高阳性率显著下降,cyclin D1和pRb的表达与BTCC的病理分级、临床分期和有无转移均相关,p21WAF1与pRb的表达呈负相关,cyclin D1和pRb的表达呈正相关,而p21WAF1与cyclin D1的表达无关.结论 p21WAF1/cyclin D1/pRb通路异常与BTCC的发生发展密切相关,p21WAF1的改变可能为癌变的早期事件,联合检测p21WAF1、cyclin D1和pRb可较准确地评价BTCC的生物学特性,估计预后,指导治疗.
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