埃兹蛋白和膜突蛋白及上皮型钙黏蛋白与甲状腺乳头状癌侵袭性的相关性研究

目的 探讨埃兹蛋白(Ezrin)、膜突蛋白(Moesin)和上皮型钙黏蛋白(E-Cadherin)在甲状腺乳头状癌侵袭和转移中的作用。方法 选取2005-2008年手术切除的81例甲状腺乳头状癌石蜡包埋标本,以癌旁组织为对照,采用免疫组织化学SP法,检测Ezrin、Moesin和E-Cadherin在甲状腺乳头状癌中的表达,并结合患者的临床资料进行分析。结果 甲状腺乳头状癌中的Ezrin、Moesin的阳性表达率均高于癌旁组织（x2值分别为61.691、57.949,P值均＜0.01）。甲状腺乳头状癌中E-Cadherin的阳性表达率低于癌旁组织(x2 =64.241,P＜0.01)。患者年龄≥45岁、肿瘤侵犯甲状腺被膜外、有颈淋巴转移、Ⅲ～Ⅳ期甲状腺乳头状癌,Ezrin、Moesin的阳性表达率增高,差异有统计学意义（P值均＜0.01）;而E-Cadherin的阳性表达率降低,差异有统计学意义（P值均＜0.01）。结论 甲状腺乳头状癌中Ezrin、Moesin的高表达和E-Cadherin的低表达与肿瘤的侵袭和转移有关,三者之间可能具有协同作用,联合检测Ezrin、Moesin和E-Cadherin可作为判断甲状腺乳头状癌侵袭、转移和预后的指标。

Study of the correlation of papillary thyroid carcinoma's invasion with Ezrin, Moesin and E-Cadherin

Objecive To investigate the effects of Ezrin, Moesin and E-Cadherin on the invasion and metastasis of papillary thyroid carcinoma(PTC). Methods The 81 paraffln-embedded specimen of PTC treated in The Second Clinical College of Harbin Medical University from 2005 to 2008 were examined immunohistochemically for Ezrin, Moesin, and E-Cadherin. Normal thyroid tissues adjacent to cancer were control. The correlation of Ezrin, Moesin, and E-Cadherin expressions and clinical features of PTC,including gender, age, tumor size, invasion, lymph node metastasis, and TNM stage, was analyzed.Results Positive staining rates of Ezrin and Moesin in PTC were significantly higher than those in control (x2 were 61.691 and 57. 949, P ＜0.01, respectively). Positive staining rate of E-Cadherin in PTC was significantly lower than that in control (x2 = 64.241 ,P ＜ 0. 01 ) . The positive expression rates of Ezrin and Moesin in PTC incresed in the subgroups with age≥45 years,local invasion, lymph node metastasis and stage Ⅲ-Ⅳ, with significant difference respectively (P ＜ 0.01 ), while the positive expression rate of E-Cadherin in PTC significantly decreased ( P ＜ 0. 01 ). Conclusions The up-regulation expressions of Ezrin and Moesin and the down-regulation expression of E-Cadherin were associated with the invasion and metastasis of PTC. Combined detection of Ezrin, Moesin and E-Cadherin in PTC might served as an important predictor for the invasion, metastasis and prognosis of PTC.