【摘要】 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StathminmRNA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,StathminmRNA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)。StathminmRNA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StathminmRNA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StathminmRNA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。更多还原

【Abstract】 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 of stathmin mRNA and protein was found in 3 ESCC cell lines EC9706, Eca109 and EC-1, with the positive expression rates exceeding 80%. The positive rates of stathmin mRNA and protein in ESCC samples were 82.7% and 81.3%, respectively. There were significant differences in the relative contents of stathmin mRNA and protein among normal mucosa tissue, tumor-adjacent tissue and cancer tissue (χ2=19.204 and 25.03, respectively, P<0.01). In addition, a positive correlation was noted between stathmin mRNA and protein expressions in ESCC (r=0.413, P=0.000). The relative contents of stathmin mRNA and protein were significantly correlated to the differentiation degree, lymph node metastasis, invasive depth and TNM stage of ESCC (P<0.05). Conclusions The expression of stathmin mRNA and protein is upregulated in ESCC with correlation to the differentiation degree, lymph node metastasis, invasive depth and TNM stage of ESCC, suggesting the possible involvement of stathmin in the oncogenesis of ESCC. Combined detection of stathmin mRNA and protein may prove valuable for early diagnosis and prognosis of ESCC, and stathmin may serve as a potential molecular target for biotherapy of the tumor.更多还原