胃癌Survivin 、COX-2 蛋白的表达及其相关性分析

目的]探讨胃癌中Survivin蛋白表达与胃癌生物学行为及凋亡相关蛋白COX-2和凋亡指数(AI)的相关性.方法]应用免疫组化SP法检测51例胃癌组织、47例非癌胃黏膜组织中Survivin和COX-2的表达,应用TUNEL法检测AI.结果]Survivin蛋白在胃癌组织中的阳性表达率为70.58%较非癌胃黏膜组的36.17%明显增高(P＜0.05),COX-2在胃癌组织中的阳性表达率为68.63%较非癌胃黏膜组的30.04%明显增高(P＜0.05).Survivin蛋白在有淋巴结转移组阳性表达率显著高于无淋巴结转移组(94.59%vs 28.57%,P＜0.05),侵及浆膜组阳性表达率明显高于未及浆膜组(78.04%vs 40.00%,P＜0.05),且在Ⅲ-Ⅳ期胃癌病人Survivin阳性表达率明显高于Ⅰ～Ⅱ期(88.57%vs 31.25%,P＜0.05),COX-2蛋白在淋巴结转移组阳性表达率明显高于无淋巴结转移组(78.38%vs28.57%,P＜0.05),且Ⅲ-Ⅳ期病人阳性表达率明显高于Ⅰ～Ⅱ期(77.14%vs 37.50%,P＜0.05).Survivin阳性表达与COX-2阳性表达呈正相关(rs=0.32,P＜0.05).Survivin阳性组的平均AI明显低于阴性组(P＜0.05),而COX-2阳性组的平均AI明显高于阴性组(P＜0.05).结论]Survivin和COX-2蛋白与胃癌的发生及其恶性演变有关,检测Survivin和COX-2蛋白有利于判断胃癌的恶性程度和预后.

Expression of survivin and COX-2 in gastric carcinoma and their relationship

Objective] To observe the relationship of survivin expression to the biological behavior,the expression of COX-2 and apoptosis index(AI) in gastric carcinoma.Methods] The expressions of survivin and COX-2 were examined in 51 cases of the gastric carcinoma and 47 cases of peri-carcinoma tissues by immunohistochemical SP and TUNEL technique.Results] The positive rate of survivin in gastric carcinomas being 70.58% was significantly higher than that in peri-carcinoma tissues being 36.17%(P<0.05);the positive...