实用医学杂志 ›› 2022, Vol. 38 ›› Issue (2): 150-155.doi: 10.3969/j.issn.1006⁃5725.2022.02.005

• 基础研究 • 上一篇    下一篇

雌激素对香烟烟雾诱导肺上皮间质转化的影响

杨晓蕾 李娜 范敏娟 张金桃 刘向   

  1. 昆明医科大学第二附属医院全科医学科(昆明 650101)

  • 出版日期:2022-01-25 发布日期:2022-01-25
  • 通讯作者: 范敏娟 E⁃mail:fminjuan@163.com
  • 基金资助:
    云南省科技厅⁃昆明医科大学应用基础研究联合专项资金项目[编号:2018FE001(⁃45)]

Effect of estrogen on cigarette smoke ⁃induced pulmonary epithelial mesenchymal transformation

YANG Xiaolei,LI Na,FAN Minjuan,ZHANG Jintao,LIU Xiang.   

  1. Department of General Practicethe Second Affiliated Hospital of Kunming Medical UniversityKunming 650101China
  • Online:2022-01-25 Published:2022-01-25
  • Contact: FAN Minjuan E⁃mail:fminjuan@163.com

摘要:

目的 探究在慢性阻塞性肺疾病(chronic obstructive pulmonary disease,COPD)中,雌激素通 过调控 miR⁃21/SMAD 信号通路对香烟烟雾诱导的肺上皮间质转化(epithelial mesenchymal transition,EMT 的影响。方法 RT⁃qPCR、Western blot、MTT 检测 miR⁃21 E⁃cadherin、α⁃SMA、Vimentin mRNA 水平、SMAD 相关蛋白表达、HBE 增殖活力。结果 雌激素促进香烟烟雾(CSE)诱导的人肺支气管上皮细胞(HBE EMT 和活力下降;上调 miR⁃21,激活 SMAD 通路;促进 CSE 诱导的 EMT 和细胞活力下降;过表达 miR⁃21,激 SMAD 通路;雌激素通过激活 SMAD 促进 CSE 诱导的 EMT 和细胞活力下降。结论 雌激素通过上调 miR⁃21,激活SMDA 通路,抑制HBE 增殖,促进HBE 发生EMT,促进COPD 发展进程。

关键词:

雌激素, miR?21, SMAD, 慢性阻塞性肺疾病, 上皮间质转化

Abstract:

Objective To explore the effect of estrogen on cigarette smoke⁃induced epithelial mesenchymal transition(EMT)in chronic obstructive pulmonary disease(COPD)patients by regulating miR⁃21/SMAD signaling pathway. Methods The mRNA levels of miR⁃21,E⁃cadherin,α⁃SMA and vimentin,the expression of SMAD⁃ related proteins and the proliferation activity of HBE were detected by RT⁃qPCR,Western blot and MTT. Results Estrogen promoted the decrease of EMT and vitality of HBE cells induced by CSE,up⁃regulated miR⁃21 to activate SMAD pathway,promoted the decline of EMT and cell vitality induced by CSE;It activated SMAD pathway by overexpressing miR⁃21. It could promote the declines of CSE⁃induced EMT and cell viability by activating SMAD. Conclusion Estrogen can activate SMDA pathway by up⁃regulating miR⁃21 and promote COPD development by inhibiting HBE proliferation and promoting its EMT.

Key words:

estrogen, miR?21, SMAD, chronic obstructive pulmonary disease, epithelial mesen? chymal transition