摘要
目的 :探究凋亡抑制基因survivin在胃癌组织中的表达与COX 2表达的相关性。方法 :运用S P免疫组化技术 ,检测survivin和COX 2蛋白在 93例胃癌组织、2 0例正常胃黏膜组织以及胃癌细胞株MGC 80 3中的阳性率。结果 :survivin蛋白在 2 0例正常胃黏膜组织中阴性 ,而 93例胃癌组织中有 66例阳性 ,占 71% ,差异有显著性 (P <0 .0 1) ,COX 2蛋白在胃癌组织中的阳性率为 76.3 % ,MGC 80 3细胞中survivin和COX 2蛋白均阳性。Survivin蛋白阳性率与胃癌组织的分化程度、淋巴结转移、TNM分期相关 ,而与浸润程度不相关 ,并与COX 2蛋白阳性呈正相关 (Pearson列联系数 0 .2 2 7P <0 .0 5)。结论 :肿瘤组织中survivin蛋白的特异性阳性在胃癌的发生发展中起重要作用 ;survivin蛋白与胃癌组织中COX 2蛋白的阳性密切相关 ,两者可能存在共同的激活机制 。
Purpose:To detect the expression of a novel i nh ibitor gene of apoptosis,survivin,in gastric cancer and in gastric carcinoma MGC -803 cell line,also to analyze its correlation with the expression of COX-2. Methods:In 93 stomach carcinoma tissues and 20 normal gastric tissues , the expression o f survivin and COX-2 were examined by using the streptavidin-biotin peroxidase (SP) method. Results:In contrast to negative expression in normal gastric mucosa,survivin was express ed in 66 of 93(71%) cases of gastric cancer samples,Overexpression of survivin i n gastric carcinoma MGC-803 cell line was also found,There was a relationship b etween survivin gene expression and degrees of differentiation,lymph node metast ases and TNM stages.The expression of survivin was positively correlated with th at of COX-2(liner index of Pearson=0.227 P<0.05).Conclusions :The specific up-regulation of survivin in gastric cancer suggested that sur vivin may play an important role in the process of carcinogenesis.A positive cor relation between expressions of survivin and COX-2 was observed,It was speculat ed that there may be a common transcription mechanism which constructed multiple pathways contributing to the inhibition of apoptosis in gastric cancer.
出处
《中国癌症杂志》
CAS
CSCD
2004年第1期15-18,共4页
China Oncology
