【作者】 高叶梅；

【导师】 涂青松；

【作者基本信息】 中南大学 ， 肿瘤学， 2009， 硕士

【摘要】 目的:检测鼻咽癌组织中埃兹蛋白(Ezrin)及上皮细胞钙黏蛋白(E-cadherin)的表达情况,探讨他们与肿瘤侵袭、转移及预后的关系,以及两者的相关性。材料与方法:收集临床确诊的存档鼻咽低分化鳞癌石蜡标本42例,将每个标本的4张切片分别进行HE染色、免疫组化SP法及阴性对照。HE确认病理类型,结合临床资料进行TNM分期,根据IHC染色结果检测Ezrin及E-cadherin的表达,同时对所选病例进行随访。所得结果用SPSS16.0进行统计学检验。结果:Ezrin呈阳性表达在鼻咽炎性标本上皮细胞中只有1例(1/10),鼻咽癌组织中28例(28/42),阳性信号沿细胞膜内侧线性分布,也有部分在胞浆呈棕色颗粒分布;Ezrin的表达与鼻咽癌的T分期(p=0.001)、淋巴结转移(p=0.015)、临床分期(p=0.028)显著相关;与鼻咽癌的性别、年龄无明显相关;而E-cadherin在鼻咽癌组织中呈不同程度的降低(P＜0.01),与性别、年龄无明显相关;与T分期(p=0.023)、淋巴结转移(p=0.039)、分期(p=0.003)显著相关;经Spearman相关分析,Ezrin与E-ceadherin在鼻咽癌组织中的表达呈明显负相关(r=-0.450,P＜0.05);生存分析提示Ezrin阳性表达、肿瘤TNM分期、E-cadherin表达下调及有淋巴结转移者与生存率有关。结论:1.Ezrin表达升高及E-cadherin的表达减弱或丢失与鼻咽癌临床分期、淋巴结转移有关,可作为鼻咽癌重要的恶性生物学指标之一。2.Ezrin及E-cadherin在鼻咽癌组织中的表达呈明显的负相关。3.联合检测Ezrin、E-cadherin的表达水平,可能为鼻咽癌预后判断提供依据。更多还原

【Abstract】 Objective To investigate the expression of Ezrin and E-cadherin ,as well as their correlations with the invasion and metastasis of nasopharyngeal carcinoma.Materials and Methods 42 cases of nasopharyngeal poorly differentiated squamous cell carcinoma were selected, each of the four sections specimens were HE staining, immunohistochemical sp method and negative control. According to the staining results of the expression of Ezrin and E-cadherin, while follow-up of the selected cases .The results of statistical rests conducted by spss 16.0.Results Ezrin was positive expression only in one of 10 cases of chronic nasopharyngitis (1/10),but 28 cases of positive expression(28/42) in nasophyaryngeal carcinoma,positive signal linearity distributed along the inside of cell membrane ,as well as some in the cytolymph as brown slurry particle. Ezrin expression was closed corrected with depth of invasion(p=0.001) ,lymph node metastasis(p=0.015)and TNM stage(p=0.028),not with gender and age; and E-cadherin was decreased or completely loss in nasopharyngeal carcinoma (P <0.01),and was closed corrected with depth of invasion(p=0.023) ,lymph node metastasis(p=0.039)and TNM stage(p=0.003),not with gender and age; by Spearman correlation analysis, Ezrin and E-cadherin in nasopharyngeal carcinoma expression was negatively correlated (r =- 0.450, P <0.01); survival analysis showed that positive expression of Ezrin, tumor TNM staging,decreased of E-cadherin expression were associated with survival rate of post-operation.CONCLUSIONS1. Excess expression of Ezrin protein and E-cadherin expression weakened or lost is closely related to primary tumor of invasion, TNM stage, lymph node metastasis, which suggested that the high expression of Ezrin protein may play an important role in development, invasion and metastasis of nasopharyngeal cancer.2. The relationship of Ezrin and E-cadherin in nasopharyngeal carcinoma is significantly negative correlation.3. Combined detection can be used as a valid set of tumor marker and prognostic indicator of nasopharyngeal carcinoma , and they can be used as biological signs to assess recurrence risk of patients with nasopharyngeal carcinoma.更多还原