【摘要】 目的:观察微小染色体维持蛋白5(MCM5)和转录因子1(E2F-1)在胃癌组织中的表达及其与胃癌病理参数之间的关系,探讨二者相关性。方法:采用免疫组织化学SP方法,对57例胃癌患者的癌组织及20例正常胃黏膜进行检测,分析MCM5、E2F-1蛋白表达及其与胃癌病理参数之间的关系。结果:MCM5在胃癌组中的阳性表达率为71.9%(41/57),显著高于正常组0(0/20),2组差异有统计学意义(P<0.001)。E2F-1在正常胃组织、胃癌组织中的阳性表达率分别为35.0%(7/20)、66.7%(38/57),差异有统计学意义(P<0.05)。MCM5和E2F-1的表达与性别、年龄、胃癌分化程度、浸润深度、淋巴结转移、远处转移及TNM分期均无关(P>0.05)。MCM5和E2F-1在胃癌组织中的表达呈正相关(r=0.635,P=0.000)。结论:MCM5和E2F-1在胃癌细胞中阳性表达,参与了胃癌的发生、发展。MCM5和E2F-1可能共同作用于胃癌发生的早期阶段。更多还原

【Abstract】 Objective:To explore the relationship between the expressions of MCM5 and E2F-1 with the genesis,clinicopathological parameters of gastric carcinoma.Methods:Immunohistochemistry SP method was used to detect the expressions of MCM5 and E2F-1 in gastric car- cinoma tissues of 57 cases and in normal gastric mucosa of 20 cases.The correlation between expressions of MCM5 and E2F-1 and clinicopathological parameters of gastric carcinoma was analysed. Results:The positive expression rate of MCM5 in cancer tissues was 71.9%(41/57),while in normal mucosa it was 0(0/20).The difference between the two groups was statistically significant (P<0.001).The positive rates of E2F-1 in normal and gastric carcinoma tissues were 35%(7/20)and 66.7%(38/57),denoted a significant diference(P<0.05).The expressions of MCM5 and E2F-1 in cancer tissues were not correlated with sex,age,the cell differentiation,the depth of invasion,lymph node metastases,distant metastases and TNM stage(P>0.05).The correlation between MCM5 and E2F-1 expressions in gastric carcinoma was highly significant positive(r=0.635,P=0.000).Conclusion: Overexpression of MCM5 and E2F-1 corelates with occurence and development of gastric carcinoma.MCM5 and E2F-1 may work in the early phase in carcinogenesis of gastric carcinoma.更多还原