喉癌中MTA1分布特点及其与MMP-9、VEGF-C蛋白表达的相关性分析

Distribution characteristic of MTA1 and its relationship with MMP-9,VEGF-C protein expression in human laryngocarcinoma

目的研究肿瘤转移相关基因1(MTA1)蛋白在喉癌组织中的表达特点,并分析其与基质金属蛋白酶9(MMP-9)、血管内皮生长因子C(VEGF-C)蛋白的相关性。方法采用Western blot法检测40例喉癌患者的正常喉黏膜组织、癌周围组织及肿瘤组织样本中MTA1、MMP-9、VEGF-C蛋白表达,并统计分析其临床病理特性。结果与喉癌无颈淋巴结转移组、癌周围及正常组织相比,喉癌颈淋巴结转移组中MTA1蛋白的表达水平明显升高(P<0.05)。MTA1蛋白在喉癌组织中的表达与淋巴结转移、肿瘤分期及肿瘤分化程度呈正相关(P<0.05),并与VEGF-C、MMP-9表达正相关(P<0.05)。结论 MTA1可能参与喉癌的发生、发展和转移,且可能与MMP-9、VEGF-C蛋白之间存在调控作用。

Objective To investigate the expression characteristic of metastasis associated 1（MTA1） protein in laryngocarcino-ma tissue and to analyze its relationship with matrix metalloproteinase-9（MMP-9） and vascular endothelial growth factor C（VEGF-C） proteinin .Methods The Western blot method was adopt to detect the expression levels of MTA1 ,MMP-9 and VEGF-C protein in the specimens of normal laryngeal mucosal tissue ,paracarcinoma tissue and tumor tissue from 40 cases of laryngocarcinoma .Re-sults Compared with the groups of laryngocarcinoma without lymph node metastasis ,paracarcinoma and normal tissue ,the expres-sion level of MTA1 protein in the laryngocarcinoma with lymph node metastasis group was significantly increased （P〈0 .05） .The expression of MTA1 protein in the laryngocarcinoma tissue was significantly correlated with the lymph nodes metastasis ,tumor staging and differentiation degree of laryngocarcinoma （P〈0 .05） and was positively correlated with the expression of VEGF-C and MMP-9 （P〈0 .05） .Conclusion MTA1 may participate in the development ,progress and metastasis of laryngocarcinoma .Moreo-ver the regulating effect may exist among MTA1 ,MMP-9 and VEGF-C .