Stathmin基因在食管鳞癌中的表达及生物学意义

目的 探讨Stathmin基因在食管鳞癌(ESCC)中的表达及其与ESCC发生、发展的关系.方法 应用原位杂交和免疫组织化学法检测3株食管鳞癌细胞EC9706、Eca109和EC-1及75例食管鳞癌组织、25例癌旁不典型增生组织和正常食管黏膜组织中Stathmin mRNA和蛋白的表达,并分析Stathmin基因表达与临床病理特征的关系.结果 StathminmRNA和蛋白在3株食管鳞癌细胞EC9706、Eca109和EC-1中均呈高表达,阳性表达率>80%.在75例食管鳞癌组织标本中,Stathmin mRNA和蛋白的阳性表达率分别为82.7%和81.3%,与癌旁不典型增生组织及正常食管黏膜组织比较有显著性差异(χ2=19.204、25.03,均P<0.01).Stathmin mRNA和蛋白在食管鳞癌组织中的表达呈正相关(r=0.413,P=0.000).不同分化程度、有无淋巴结转移、肿瘤浸润深度和TNM分级的食管鳞癌组织之间Stathmin mRNA和蛋白表达差异均有统计学意义(均P<0.05).结论 食管鳞癌细胞株及组织中Stathmin mRNA及蛋白高表达,与食管鳞癌的分化程度、淋巴结转移、肿瘤浸润深度及TNM分期显著相关,Stathmin可能与食管鳞癌发生发展有关.Stathmin对ESCC的早期诊断及预后判断均有重要意义.Stathmin有望成为理想的生物治疗靶点.

Expression of stathmin in esophageal squamous cell carcinoma and its biological significance

Objective To explore the expression of stathmin gene in esophageal squamous cell carcinoma (ESCC) and its correlation to oncogenesis of ESCC. Methods Three ESCC cell lines, 75 ESCC samples, 25 tumor-adjacent samples and 30 normal esophageal mucosa samples were examined for the expression of stathmin mRNA and protein by in situ hybridization and immunohistochemistry, respectively. The correlations of stathmin expression to the clinicopathological features of the patients were analyzed. Results Overexpression...