存活素在胰腺癌组织中的表达

目的　探讨胰腺癌中存活素(survivin)表达的意义。方法　应用免疫组织化学、逆转录聚合酶链反应(RT- PCR)、Western印迹法检测59例胰腺癌及其癌旁组织、11例慢性胰腺炎组织、7个胰腺癌细胞系中存活素的表达。结果　胰腺癌组织中存活素的阳性表达率为72. 8% (43 /59),与胰腺癌分期及分化程度无关(P>0 .05),癌旁组织及慢性胰腺炎组织中存活素表达均为阴性; 7个胰腺癌细胞系存活素mRNA及蛋白均为阳性表达。结论　存活素在胰腺癌中的表达具有一定的肿瘤特异性,可能是胰腺癌治疗的一个理想靶目标。

Expression of survivin gene in pancreatic carcinoma

Objective To determine the expression status of survivin gene in pancreatic carcinoma. Methods Expression of survivin gene was evaluated by immunohistochemistry, Western Blot and RT-PCR in 59 cases of pancreatic carcinoma along with their corresponding adjacent benign tissues, 11 cases of chronic pancreatitis, and 7 pancreatic carcinoma cell lines. Results The positive expression rate of survivin in pancreatic carcinoma was 72.8%(43/59). There was no relationship between the expression of survivin and tumor stage and differentiation. No expression of survivin was detected in benign tissue adjacent to the tumors as well as in samples of chronic pancreatitis. All 7 pancreatic carcinoma cell lines showed a positive expression of survivin mRNA and protein. Conclusions The expression of survivin appears to be tumor specific to some extent in our pancreatic carcinoma samples. Survivin may be an ideal target for therapy against pancreatic carcinoma.