摘要
目的 :研究细胞周期素E(cyclinE)和P53蛋白在胃癌组织中的表达水平及其与生物学行为和对预后的作用。方法 :应用免疫组化方法检测 1 2 8例胃癌组织中cyclinE和P53蛋白表达水平。 结果 :本组 1 2 8例中 ,cyclinE蛋白阳性 57例 ,占 44 .5 % ;P53蛋白阳性 67例 ,占 52 .3 % ,P53 +/cyclinE +者 48例 ,占 37.5 %。胃癌组织中cyclinE和P53蛋白表达水平与肿瘤大小、浸润深度、局部淋巴结转移、脉管侵犯和远处转移均相关。单因素生存分析显示 ,cyclinE阳性表达组五年生存率 (5 .3 % )显著低于cyclinE表达阴性组 (36 .6 % ,P <0 .0 0 1 ) ,P53蛋白表达阳性的病例五年生存率 (7.8% )显著低于P53表达阴性的病例 (2 2 .6 % ,P <0 .0 0 1 ) ,cyclinE和P53均阳性的病例五年生存率 (2 .3 % ) ,明显低于其他组的病例 (2 7.3 % ,P <0 .0 0 5)。COX模型多因素分析显示 ,cyclinE蛋白表达水平是独立的预后指标 ,P53蛋白表达水平不能作为独立的预后指标。结论 :CyclinE在胃癌中表达具有一定的预后意义 。
Purpose:To study the expressions of cyclin E and P53 in gastric carcinoma in relation to biological behavior and prognosis.Methods:Cyclin E and P53 expressions at protein level were determined by immunohistochemistry technique in 128 patients with gastric carcinoma.Results:Of the 128 patients , cyclin E positive expression was in 57(44 5%),P53 positive expression was in 67(52.3%),P53 and cyclin E were both positive in 48(37.5%),respectively.Cyclin E and P53 expression level were correlated with tumor size , invasion depth, regional lymph node status, vessel invasion, and distant metastasis, Univariate analysis demonstrated better survival in patients with negative cyclin E and P53 expressions than those with positive expression. By COX multivariate analysis, cyclin E expression level was found to be of independent prognostic significance, however p53 expression level was not found to be of independent prognostic significance.Conclusions:Cyclin E expression within gastric carcinoma tissues is an indicator of tumor behavior and prognosis, p53 expression within gastric carcinoma tissue is only an indicator of tumor behavior. [
出处
《中国癌症杂志》
CAS
CSCD
2003年第3期211-214,共4页
China Oncology
