淋巴管标记物LYVE-1、D2-40在胃癌组织中的表达及临床意义

目的:检测两种新的淋巴管特异标记物LYVE-1、D2-40在胃癌组织中的表达,探讨它们在胃癌中的临床病理意义。方法:应用免疫组化对50例胃癌组织和30例正常胃组织中LYVE-1及D2-40的表达进行检测。结果:LYVE-1和D2-40在淋巴管内皮细胞阳性表达,呈棕黄色。胃癌组织中LYVE-1和D2-40阳性率均显著高于正常胃组织;癌周LYVE-1和D2-40阳性率均明显高于癌内组织;低未分化,Ⅲ～Ⅳ期,有淋巴结转移和远处转移的胃癌组织中LYVE-1和D2-40的表达水平分别比高中分化,Ⅰ～Ⅱ期,无淋巴结转移和远处转移的高。且胃癌组织各分期,各分级,无论有无远处转移和淋巴结转移及正常组织,同等条件下D2-40阳性率均高于LYVE-1,且两者表达呈显著正相关(r=0.497,P<0.05)。结论:胃癌的新生淋巴管主要位于瘤周,从而促进其淋巴结转移,且淋巴管密度与肿瘤进展程度相关。与LYVE-1相比,D2-40能更敏感和特异地预测肿瘤的淋巴管微转移,具有更好的临床病理应用价值。

The expressions and significances of LYVE-1 and D2-40 in gastric cancer

Objective To investigate the expressions and significances of LYVE-1 and D2-40(new lymphatic endothelial markers) in gastric cancer.Methods Immunohistochemistry was used to detect the expressions of LYVE-1 and D2-40 in the cancer tissues from 50 cases of gastric cancer and the gastric tissues from 30 normal controls.Results LYVE-1 and D2-40 were positively expressed with brown-yellow color in the endothelial cells of lymphatic vessels.The positive rates of LYVE-1 and D2-40 were significantly higher in gastr...