华西口腔医学杂志

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人脐静脉内皮细胞的分离培养和鉴定及酪氨酸激酶受体-2在其中的表达

吴世卿1 郑俊发1 曾曙光1 陈少鹏2 薛国初1 章锦才1   

  1. 1.南方医科大学附属口腔医院·广东省口腔医院口腔颌面外科,广东广州510280;2.中国科学院广州生物医药与健康研究所, 广东广州510663
  • 收稿日期:2009-12-25 修回日期:2009-12-25 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 曾曙光,Tel:13662375681
  • 作者简介:吴世卿(1982—),女,广东人,硕士,现在南方医科大学附属顺德市第一人民医院工作
  • 基金资助:

    广东省科技计划基金资助项目(2008B030301190);广东省科研基金资助项目(A2006115)

Culture and identify the human umbilical vein endothelial cells and investigate the expression of tyrosine kinase-2 with immunoglobulin-like and epidermal growth factor homology domains in the cells

WU Shiqing1, ZHENG Jun-fa1, ZENG Shu-guang1, CHEN Shao-peng2, XUE Guo-chu1, ZHANG Jin-cai1   

  1. 1. Dept. of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatology Hospital, The Affiliated Stomatology Hospital of Southern Medical University, Guangzhou 510280, China; 2. Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510663, China
  • Received:2009-12-25 Revised:2009-12-25 Online:2009-12-20 Published:2009-12-20
  • Contact: ZENG Shu-guang,Tel:13662375681

摘要:

目的分离和培养人脐静脉内皮细胞(HUVECs),对其进行鉴定,并探讨酪氨酸激酶受体-2(Tie-2)基因在HUVECs中的表达情况。方法用胰蛋白酶消化、分离HUVECs并对其进行培养,根据细胞生长特点、形态特征和Ⅷ因子免疫荧光组化技术对细胞进行鉴定。分别采用逆转录-聚合酶链反应(RT-PCR)和SABC免疫细胞化学染色对HUVECs中Tie-2 mRNA和蛋白表达情况进行检测。结果原代培养的HUVECs约于24 h完全贴壁,4~5 d后融合成单层铺路石样结构。Ⅷ因子免疫荧光组化法证实细胞是HUVECs。RT-PCR检测到HUVECs中Tie-2 mRNA条带明显,SABC免疫细胞组化法检测到Tie-2蛋白在HUVECs胞浆、核膜中呈强阳性表达,阳性率为85%以上。结论胰蛋白酶灌流消化法可获得高纯度的HUVECs,Tie-2在HUVECs中呈强阳性表达。

关键词: 人脐静脉内皮细胞, 酪氨酸激酶受体-2, 肿瘤

Abstract:

Objective To study the cultural method and identification of human umbilical vein endothelial cells (HUVECs), and investigate the expression of tyrosine kinase-2 with immunoglobulin-like and epidermal growth factor homology domains(Tie-2) in HUVECs. Methods HUVECs were isolated from umbilical veins by the technique of irrigative digestion, and were cultivated in plates. The cells were identified by Ⅷ monoclonal antibody. Tie-2 mRNA and protein were detected by reverse transcription-polymerase chain reaction (RT-PCR) and SABC immunocytochemistry. Results HUVECs could adhere to the plates completely after 24 hours, and confluence a monolayer 4-5 days later. The band of Tie-2 mRNA was obviously and the expression of Tie-2 protein was strongly positive by immunocytochemistry in HUVECs. The positive rate was over 85%. Conclusion Highly purified endothelial cells were isolated. And there were overexpression of Tie-2 in HUVECs.

Key words: human umbilical vein endothelial cells, tyrosine kinase-2 with immunoglobulin-like and epidermal growth factor homology domains, tumor