层粘连蛋白在乙肝相关性肝癌中的表达、分布及意义

The distribution and the significance of laminin gene expression in hepatitis B virus-related hepatocellular carcinoma

目的探讨层粘连蛋白(laminin,LN)在乙型肝炎病毒(hepatitis Bvirus,HBV)感染相关性肝癌(hepatocellular carcinoma,HCC)中的表达分布及意义。方法选取2003-01至2013-05在武警总医院施行了原位肝移植手术的215例HBV相关性HCC伴肝硬化患者的组织标本,应用免疫组化的方法检测LN在肝癌组织和癌旁组织中的表达情况,并以30例正常肝组织和良性肝病组作为对照。结果 LN主要定位于HBV相关性肝癌组织肝窦窦壁,其次为癌旁间质血管与新生血管及细胞膜/浆。LN在肝癌组织中肝窦窦壁和新生血管的阳性表达率为70.23%(151/215),在癌旁组织和良性肝病中肝窦窦壁和新生血管的阳性表达率分别为57.20%(123/215)和13.33%(3/30),LN在癌组织中的表达显著高于其在癌旁及良性肝病中的表达(P=0.000),LN在癌组织中的阳性表达与微卫星灶(P=0.026)、肿瘤数量(P=0.053)、血管侵犯(P=0.005)、TNM分期(P=0.029)显著相关。结论 LN的过表达可能与肝癌的发生发展及侵袭转移相关。

Objective Investigated the expression of laminin gene in hepatitis B induced-hepatocellular carcinoma（ HCC）,both of the specificity of the expression. Method Objects were 215 patients of HBV induced-HCCwith cirrhosis in our hospital who had been in the liver transplantation operation from 2003 /1 to 2013 /5. We examined the expression of laminin in 215 cases of HCC and adjacent tissues by immunohistochemistry. As the normal controls were normal liver tissue and benign liver disease. Results Localization of laminin on hepatic sinusoidal endothelial cell（ SEC） and neovascularization of the stromal tissue and membrane / plasma.The expression of the laminin postive on hepatic sinusoidal endothelial cell and neovascularization of the HCC tissues was 70. 23%（ 151 /215）,with 57. 20%（ 123 /215） in cancer adjacent tissues,with 13. 33%（ 3 /30） in benign liver diseases tissues. The expression of laminin protein in tumour tissues was significantly higher than that in cancer adjacent tissues and benign liver diseases tissues（ P =0. 000）. By clinicopathologic rank correlation analysis,the expression of laminin was associated with tumour microsatellite focal（ P =0. 026）,tumor number（ P = 0. 053）,vascular invasion（ P = 0. 005） and TNM（ P = 0. 029）. Conclusion laminin expression at the protein levels was also observed in association with developing and metastasisof the hepatocellular carcinoma.