华西口腔医学杂志

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口腔鳞癌中环氧合酶-2的表达与微血管密度的关系

曹选平1,张松涛1,周 弘1,吴豪阳1,刘学军1,张媛媛2   

  1. 1.郑州大学口腔医院 口腔颌面外科,河南 郑州450052; 2.四川大学华西口腔医学院 黏膜病研究室,四川 成都610041
  • 收稿日期:2005-10-25 修回日期:2005-10-25 出版日期:2005-10-20 发布日期:2005-10-20
  • 通讯作者: 张松涛, Tel:13540805969
  • 作者简介:曹选平(1963-),男,河南人,教授,博士
  • 基金资助:
    河南省医学科技创新人才工程资助项目(2002109)

Relationship between the Expression of Cyclooxygenase-2 and Microvessel Density in Oral Squamous Cell Carcinoma

CAO Xuan-ping1,ZHANGSong-tao1,ZHOUHong1,WUHao-yang1,LIUXue-jun1,ZHANG Yuan-yuan2   

  1. 1.Dept.ofOral and MaxillofacialSurgery,College ofStomatology,Zhengzhou University,Zhengzhou450052,China;2.Research Laboratory of Oral Mucosal Diseases,West China College ofStomatology,Sichuan University,Chengdu610041,China
  • Received:2005-10-25 Revised:2005-10-25 Online:2005-10-20 Published:2005-10-20

摘要: 目的 检测口腔鳞癌中环氧合酶-2(COX-2)和微血管密度(MVD)的表达,以探讨COX-2的表达与口腔鳞癌 血管生成的关系及其临床意义。方法 应用PV-9000两步免疫组织化学染色法检测76例口腔鳞癌组织、12例正常 口腔黏膜组织中的COX-2的表达,并通过CD34单抗标记检测肿瘤MVD。结果 COX-2在口腔鳞癌中的阳性表达 率为81·6%,明显高于对照组(P<0·001)。COX-2表达阳性组的MVD值为37·51±13·48,显著高于阴性组的MVD 值19·71±12·87 (t=4·547,P<0·01),亦明显高于正常组织的MVD值12·92±5·37 (t=5·308,P<0·01)。COX-2 的表达与口腔鳞癌颈淋巴结转移、瘤体大小、TNM分期及分化程度相关(P<0·05)。结论 口腔鳞癌组织COX-2高 表达与MVD及口腔鳞癌颈淋巴结转移、瘤体大小、TNM分期及分化程度有密切关系,COX-2可能是口腔鳞癌的重要 促血管生成因子之一。

关键词: 口腔鳞癌, 环氧合酶-2, 血管生成

Abstract:

Objective To detective the relationship between cyclooxygenase-2 (COX-2) and angiogenesis in oral squamous cell carcinoma (OSCC) and its clinical significance through observing the expression of COX-2 and determining microvessel density (MVD) in OSCC.Methods PV-9000 immunohistochemistry was used to determine the expression of COX-2 and CD34, which was used to determine MVD, in 76 OSCC tissues and 12 normal oral mucosa tissues.Results Overexpression of COX-2 was de- tected in OSCC, and was more intense compared with normal epithelium (P<0·001). The high expression of COX-2 in OSCC was related to neck lymphnode metastasis, tumor size, TNMstage and histological grade (P<0·05). The MVD value in COX-2- positive group was much higher than that in COX-2-negative group (P< 0·01) and that in normal oral mucosa tissues (P<0·01).Conclusion The high expression of COX-2 in OSCC was significantly associated withMVD, neck lymphnode me- tastasis, tumor size, TNM stage and histological grade. COX-2 might be one of the important factors in the angiogenesis of OSCC.

Key words: oral squamous cell carcinoma, cyclooxygenase-2, angiogenesis