环氧合酶-2与血管内皮生长因子-C共表达在大肠癌患者淋巴结转移中的作用

目的:探讨环氧合酶-2(COX-2)和血管内皮生长因子-C(VEGF-C)在大肠癌组织中的共同表达与患者淋巴结转移等预后因素之间的关系。方法:运用免疫组化方法检测54例大肠癌组织中COX-2的表达,同时检测VEGF-C的表达状况。结果:COX-2在大肠癌中的阳性表达率为72.2%(39/54),在伴有淋巴结转移的大肠腺癌中,COX-2阳性表达率为87.5%(21/24),转移组与非转移组相比较差异有显著性(P<0.05);COX-2蛋白表达还与浸润深度、Duke′s分期有关(P<0.05)。VEGF-C蛋白在大肠癌中的阳性表达率为64.8%(35/54),在伴有淋巴结转移的大肠腺癌中,VEGF-C的阳性表达率为91.7%(22/24),转移组与非转移组相比较差异有显著性(P<0.05);COX-2与VEGF-C表达之间存在明显关系(P<0.01);VEGF-C表达与浸润深度、Duke′s分期有相关(P<0.05),与分化程度无关(P>0.05)。结论:COX-2蛋白与VEGF-C共表达可增加大肠癌局部侵袭和淋巴结转移能力,其检测有助于大肠癌恶性程度评价及临床预后的判断。

The role of coexpression of COX-2 and VEGF-C in lymph node metastasis in patients with colorectal carcinoma

Objective To explore the coexpression of cyclooxygenase-2(COX-2) and vascular endothelial growth factor-C(VEGF-C) in colorectal carcinoma and their correlation with lymph node metastasis and prognosis.Method The expressions of COX-2 and VEGF-C were detected in 54 cases of colorectal carcinoma by immunohistochemical stain(S-P method).Results The positive rate of COX-2 was 72.2% and that of VEGF-C was 64.8%.There were significantly differences between the patients with lymph node metastasis and those without .