前列腺癌中血管内皮生长因子-C、血管内皮生长因子受体-3的表达与病理分级的相关性

目的探讨血管内皮生长因子-C(VEGF-C)、血管内皮生长因子受体3(VEGFR-3)在前列腺癌(Pca)组织中的表达与肿瘤病理分级的关系。方法采用ElivisionTM Plus二步法检测Pca组织中VEGF-C、VEGFR-3的表达情况。结果在25例前列腺癌组织中,VEGF-C表达阳性率为80%,VEGFR-3表达阳性率为76%。Ⅰ组:Gleason评分≥6分的19例,Ⅱ组:Gleason评分大于4分但小于6分的6例,VEGF-C的表达阳性率分别为94.7%、33.3%,P<0.01,组间差别有显著性意义。VEGFR-3的表达阳性率分别为89.5%、33.3%,P<0.05,组间差别有显著性意义。VEGF-C在前列腺癌组织中的表达水平与Gleason评分相关(R=0.436,P<0.05)。VEGFR-3在前列腺癌组织中的表达水平与Gleason评分显著相关(R=0.608,P<0.01)。VEGF-C、VEGFR-3在前列腺癌组织中的表达水平与年龄、PSA、前列腺体积无关,P>0.05。结论在Gleason评分大于4分的Pca组织中,VEGF-C、VEGFR-3的表达水平与Gleason分级密切相关,VEGF-C、VEGFR-3的表达强度可作为前列腺癌恶性程度的判断指标之一。

Correlation of the expressions of VEGF-C and VEGFR-3 to the pathological grade of prostate cancer

Objective To investigate the correlation of the expression of VEGF-C and VEGFR-3 to the pathological grade of human prostate cancer.Methods Immunohistochemistry was used to detect the expression of VEGF-C and VEGFR-3 in 25 cases of prostate cancer tissues.Results The total positivity rates of VEGF-C and VEGFR-3 were 80% and 76% in these cancer tissues,respectively.The positivity rates of VEGF-C was 94.7% in the 19 cases with Gleason scores no less than 6(group I),significantly higher than the rate(33%) in t...