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• 临床研究 • 上一篇    下一篇

COX-2和VEGF蛋白在HCC组织中表达及其与HCC血管形成的关系 

方艳秋1,齐亚灵2,刘 婷/*,段秀梅1,谭 岩1,陈 东3   

  1. (1.吉林大学第一医院中心实验室,吉林 长春 130021;2.佳木斯大学基础医学院组织学与胚胎学教研室,黑龙江 佳木斯 154007;3. 广东医学院组织学与胚胎学教研室,广东 湛江 524023)
  • 收稿日期:2007-09-12 修回日期:1900-01-01 出版日期:2008-09-28 发布日期:2008-09-28
  • 通讯作者: 谭 岩

Expressions of cyclooxygenase-2 and vascular endothelial growth factor in primary hepatocellular carcinoma and their relationship with angiogenesis

FANG Yan-qiu1,QI Ya-ling2,LIU Ting*,DUAN Xiu-mei1,TAN Yan1,CHEN Dong3   

  1. (1.Central Laboratary,First Hospital,Jilin University,Changchun 130021,China;2.Department of Histology and Embryology,School of Basic Medical Sciences,Jamusi University,Jamusi 154007,China;3.Department of Histology and Embryology,Guangdong Medical College,Zhanjiang 524023,China)
  • Received:2007-09-12 Revised:1900-01-01 Online:2008-09-28 Published:2008-09-28
  • Contact: TAN Yan

摘要: 目的:通过检测COX-2蛋白与VEGF蛋白在肝细胞癌(HCC)中的表达情况,探讨COX-2对HC血管形成的影响。方法:应用免疫组织化学(SP)法对30例肝癌组织、10例正常肝组织中的COX-2、VEGF蛋白进行定量检测。同时应用CD34标记肿瘤新生血管,根据CD34阳性的血管内皮细胞计数来测定微血管密度(MVD)值。结果:HCC组织中COX-2和VEGF表达阳性率明显高于对照组(P<0.001),COX-2表达与VEGF表达显著相关(r=0.632,P<0.01),且COX-2和VEGF均阳性的HCC组织MVD值明显高于两者均为阴性的组织(P<0.01)。结论:VEGF的表达随着COX-2表达增高而增高,提示COX-2可能通过诱导VEGF表达而促进HCC血管形成。

关键词: 肝细胞, 环氧合酶-2, 血管内皮生长因子, 微血管密度, 免疫组织化学

Abstract: To investigate the effect of cyclooxygenase-2(COX-2) on angiogenesis through detecting the expressions of COX-2 and vascular endothelial growth factor (VEGF) in hepatic cell carcinoma (HCC) tissues.Methods The expressions of COX-2 and VEGF in 30 cases of HCC and 10 normal liver tissues were detected by immunohistochemistry (SP).At the same time,the new vessels were marked with CD34, the tumor microvessel density(MVD) was determined by counting the number of CD34 positive cells of blood vessel endothelium.Results The  expressions of COX-2 and VEGF in HCC tissues were significant higher than those in normal liver tissues(P<0.001).There was significant positive correlation between the expressions of COX-2 and VEGF (r=0.632,P<0.01).MVD in the positive expression tissues of COX-2 and VEGF was significant higher than that in both negative tissues(P<0.01). Conclusion The high expression of VEGF is significantly correlated with the expression of COX-2,it indicates that COX-2 can induce VEGF expression and promote angiogenesis in HCC.

Key words: cyclooxygenase-2, vascular endothelial growth factor, microvessel density, immunohistochemistry

中图分类号: 

  • R735.7