鼻咽癌原发灶与自身颈部淋巴结转移癌组织中上上皮型钙黏附蛋白和β-链接素的表达差异

目的:研究鼻咽癌原发灶和自身颈部淋巴结转移癌组织中上皮型钙黏附蛋白(E-Cadherin)和β-链接素(β-catenin)表达水平的差异性。方法:采用免疫组化En Vision法检测22例鼻咽癌患者原发灶和自身颈部淋巴结转移癌组织中E-Cadherin和β-catenin基因产物的表达水平。结果:(1)22例鼻咽癌患者淋巴结转移癌组织中的E-Cadherin阳性表达率(40.9%)显著低于22例原发灶组织中的表达水平(63.6%)(P<0.05);(2)β-catenin在原发灶和淋巴结转移癌组织中均有较高的表达(86.4%,90.9%),未显示有差异性(P>0.05);(3)原发灶与颈部淋巴结转移癌组织中癌细胞表达的E-Cadherin呈正相关(r=0.676,P<0.01);转移癌组织中E-Cadherin与β-catenin呈正相关(r=0.507,P<0.05)。结论:(1)在鼻咽癌组织中,导致癌细胞侵袭转移的一个重要因素可能是E-Cadherin的表达下调。(2)因某些原因积聚于细胞内的β-catenin可能在协同促进鼻咽癌细胞侵袭转移过程中起作用。(3)在肿瘤侵袭转移的过程中,E-Cadheri...

Expressions of E-Cadherin and β-catenin in primary nasopharyngeal carcinoma and self cervical lymph node metastasis carcinoma

Objective To study the E-Cadherin(E-Cad)and β-catenin(β-cat)expressions and their clinical significance in primary nasopharyngeal carcinoma(NPC)and self control cervical lymph node metastasis carcinoma.Method EnVision immunohistochemical method was performed in 22 cases self-control of NPC and cervical lymph node metastasis cancer.Results The expression of E-Cad in cervical lymph node metastasis carcinoma was significantly stronger than that in NPC(63.6% vs 40.9%,P < 0.05=.β-cat had the higher expression in...