摘要
研究卵巢上皮肿瘤血管内皮生长因子C(VEGF-C)的表达与新生淋巴管和血管生成及肿瘤转移的关系。应用原位杂交和免疫组织化学法,检测卵巢上皮癌、交界性肿瘤和良性肿瘤组织VEGF-CmRNA和蛋白的表达,并结合图像分析,计数血管内皮生长因子受体3(VEGFR-3)阳性脉管数和以CD31标记的微血管密度(MVD)。结果显示,卵巢上皮癌VEGF-CmRNA和蛋白表达阳性率、VEGFR-3阳性脉管数和MVD均显著高于交界性肿瘤和良性肿瘤(p<0.05)。卵巢上皮癌组织中,有淋巴结转移患者VEGF-C表达阳性率、VEGFR-3阳性脉管数和MVD高于无淋巴结转移患者,临床分期Ⅲ-Ⅳ期患者VEGF-C表达阳性率、VEGFR-3阳性脉管数和MVD高于Ⅰ-Ⅱ期患者(p<0.05),VEGF-C阳性表达患者的VEGFR-3阳性脉管数和MVD均显著高于阴性表达患者(p<0.05),VEGFR-3阳性脉管数和MVD呈正相关(p<0.01)。研究提示VEGF-C促进了肿瘤诱导的淋巴管生成和血管生成,在卵巢上皮癌的淋巴转移中起重要作用,VEGF-C可作为判断肿瘤淋巴转移的生物学指标之一。
The aim of the present study was to explore the role of vascular endothelial growth fac-
tor-C (VEGF-C) in the process of angiogenesis, lymphangiogenesis and lymphatic metastasis in epithelial ovarian tumors. In situ hybridization and immunohistochemical staining for VEGF-C were performed in 30 epithelial ovarian carcinomas, 9 borderline tumors and 26 benign cystadenomas. Endothelial cells were immunostained with anti-VEGFR-3 pAb and anti-CD31 mAb, and VEGFR-3 positive vessels and microvessel density (MVD) were assessed by image analysis. VEGF-C mRNA and protein expression in ovarian epithelial carcinomas were significantly higher than that in borderline tumors and benign cystadenomas(p < 0. 05 or p < 0. 01). In ovarian epithelial carcinomas, VEGF-C protein expression, VEGFR-3 positive vessels and MVD were significantly higher in the cases of clinical stageⅢ - Ⅳ and with lymphatic metastasis than those of clinical stage Ⅰ - Ⅱ and without lymphatic metastasis respectively (p<0.05 or p<0.01) , VEGFR-3 positive vessels and MVD was significantly higher in the VEGF-C protein positive tumors than negative tumors (p<0.05), VEGFR-3 positive vessels was significantly correlated with MVD(p <0. 01). These data suggest that VEGF-C might play a role in lympatic metastasis via lymphangiogenesis and angiogenesis in epithelial ovarian carcinomas, and VEGF-C could be used as a biologic marker of metastasis in ovarian epithelial carcinomas.
出处
《实验生物学报》
CSCD
北大核心
2003年第6期445-452,共8页
Acta Biologiae Experimentalis Sinica
基金
浙江省分析测试基金(No.02089)
浙江省卫生厅科研基金(No.2002A087)
