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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (9): 999-1002.

• 研究原著 • 上一篇    下一篇

臭氧应激对人支气管上皮细胞上皮钙粘素表达的影响

白洪波1,2, 管茶香1, 刘永平1, 张敏1, 郑世平1, 崔艳茹1, 刘惠君1   

  1. 1中南大学湘雅医学院生理学系, 长沙 410008 , 湖南;
    2广州医学院生理教研室, 广州 510182 , 广东
  • 收稿日期:2006-04-14 修回日期:2006-05-09 出版日期:2006-09-26 发布日期:2020-11-05
  • 通讯作者: 管茶香,女, 博士, 教授, 硕士生导师, 从事呼吸生理研究。Tel:0731-8836883 E-mail:guanchaxiang@mail.csu.edu.cn
  • 作者简介:白洪波, 女, 硕士, 助教, 从事呼吸生理研究。Tel:020-81340199  E-mail:baihongbo1@163.com
  • 基金资助:
    国家自然科学基金项目(No39800053)

Effects of ozone-stress on E-cadherin expression in human bronchial epithelial cells

BAI Hong-bo1,2, GUAN Cha-xiang1, LIU Yong-ping1, ZHANG Min2, ZHENG Shi-ping1, CUI Yan-ru1, LIU Hui-jun1   

  1. 1Department of Physiology , Xiangya Medical College , Central South University , Changsha 410078 , Hunan , China;
    2Department of Physiology , Guangzhou Medical College , Guangzhou 510182 , Guangdong , China
  • Received:2006-04-14 Revised:2006-05-09 Online:2006-09-26 Published:2020-11-05

摘要: 目的 观察人支气管上皮细胞(human bronchial epithelial cells , HBECs)上皮钙粘素(E-cadherin,E-cd)的表达, 探讨E-cd 在维持气道损伤修复过程中的变化及意义。方法 分别采用免疫细胞化学染色和RT-PCR 的方法检测HBECs E-cd 及HBECsE-cd mRNA 的表达。结果 臭氧(ozone ,O3)应激可使HBECs 膜上E-cd 的表达减少, 胞浆内E-cd 表达增加(p<0.05)。随着O3 应激停止后的时间延长, 膜上E-cd 表达逐渐增加, 胞浆内E-cd 表达则减少。在停止O3 应激后的第32 h E-cd 的表达恢复正常。O3 应激对HBECs E-cd mRNA 的表达无明显影响(P>0.05)。结论 HBECs 有E-cd 表达, O3 应激影响HBECs E-cd 的分布。

关键词: 上皮钙粘素, 支气管上皮, 臭氧

Abstract: AIM: To explore the expression of Ecadherin(E-cd)in the human bronchial epithelial cells(HBECs)and their role in the damage and injury of the airway.METHODS: The E-cd protein expression and the E-cd mRNA of HBECs were determined by immunocytochemistry analysisand RT-PTR analysis , respectively.RESULTS: Ozone-stress caused a decrease in the HBECs membrane E-cd expression and an increase the cytoplasmic E-cd expression (p<0.05).These changes returned to normal 32 h after the ozone-stress was withdrawn.O3-stress had little effect on the expression of HBECs E-cd mRNA (p>0.05).CONCLUSION: Ecd is distributed on HBECs.O3-stress decreases the membrane E-cd expression but increases the cytoplasmic E-cd expression.The change of E-cd expression may mediate HBECs injuries induced by O3-stress.

Key words: epithelial cadherin, human bronchial epithelial cells, ozone

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