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中国应用生理学杂志 ›› 2017, Vol. 33 ›› Issue (1): 47-50.doi: 10.12047/j.cjap.5448.2017.011

• 研究论文 • 上一篇    下一篇

ERK1/2通路在低氧上调大鼠PASMCs钙激活性氯离子通道表达的作用

赵美平1, 马迎春3, 张聪聪1, 黄林静1, 郑梦晓1, 黎关龙4, 应磊1,2, 王万铁1,2   

  1. 1. 温州医科大学基础医学院病理生理学教研室, 浙江 温州 325035;
    2. 温州医科大学缺血-再灌注损伤研究所, 浙江 温州 325035;
    3. 兰州军区兰州总医院病理科, 甘肃 兰州 7300504;
    4. 浙江省医学科学院卫生学研究所毒理学研究室, 杭州 310013
  • 收稿日期:2016-03-11 修回日期:2016-10-22 出版日期:2017-01-28 发布日期:2018-06-19
  • 通讯作者: 王万铁,Tel:0577-86689817,E-mail:wwt@wmu.edu.cn E-mail:wwt@wmu.edu.cn
  • 基金资助:
    浙江省公益性技术应用研究计划项目(2015C37121)

The effects of ERK1/2 pathway on the expression of calcium activated chloride channel in hypoxia in PASMCs rat model

ZHAO Mei-ping1, MA Ying-chun3, ZHANG Cong-cong1, HUANG Lin-jing1, ZHENG Meng-xiao1, LI Guan-long4, YING Lei1,2, WANG Wan-tie1,2   

  1. 1. Department of Pathophysiology, Wenzhou Medical University, Wenzhou 325035;
    2. Research Institute of Wenzhou Medical University in ischemia-reperfusion injury, Wenzhou 325035;
    3. Department of Pathology, Lanzhou General Hospital of Lanzhou Military Region, Lanzhou 730050;
    4. Zhejiang Provincial Academy of Medical Sciences and Health Research Institute of Toxicology Laboratory, Hangzhou 310013, China
  • Received:2016-03-11 Revised:2016-10-22 Online:2017-01-28 Published:2018-06-19
  • Supported by:
    浙江省公益性技术应用研究计划项目(2015C37121)

摘要: 目的:探讨钙激活性氯离子通道(CLCA2)在大鼠低氧性肺动脉平滑肌细胞(PASMCs)中mRNA和蛋白表达的变化及其与ERK1/2信号通路的关系。方法:PASMCs随机分为:常氧组(N组),低氧组(H组),DMSO对照组(D组),U0126干预组(U组),Staurosporine aglycone干预组(SA组),采用免疫印迹法检测CLCA2蛋白的表达;选用半定量逆转录-聚合酶链反应(RT-PCR)技术测定CLCA2 mRNA水平的表达。结果:PASMCs中CLCA2 mRNA和蛋白的表达量,H组较N组明显上调(P<0.01);U组较D组明显上调(P<0.01);SA组较D组mRNA的表达显著下调(P<0.01),蛋白的表达轻微下调。结论:低氧可上调CLCA2中mRNA和蛋白在PASMCs的表达;ERK1/2通路激活剂-Staurosporine aglycone能下调CLCA2在PASMCs中mRNA和蛋白的表达量;ERK1/2通路抑制剂-U0126可上调CLCA2在PASMCs中mRNA和蛋白的表达量。

关键词: 钙激活性氯离子通道, 低氧, PASMCs, ERK1/2, 大鼠

Abstract: Objective: To investigate the expression of mRNA and protein of Calcium activated chloride channel (CLCA2) in hypoxic pulmonary artery smooth muscle cell (PASMCs) of rat and it's relationship with ERK1/2 signal pathway.Methods: PASMCs were randomly divided into 5 groups including normal group(N group), hypoxia group(H group), DMSO group(D group), U0126 group (U group) and Staurosporine aglycone group(SA group). The protein expression of CLCA2 in PASMCs was detected by Western blot.The mRNA expression of CLCA2 was detected by half quantitative reverse transcription polymerase chain reaction (RT-PCR).Results: The mRNA and protein expressions of CLCA2 in H group were significantly higher than N group (P<0.01). Comparing with D group,the mRNA and protein expressions of CLCA2 were significantly increased in U group (P<0.01),the mRNA expression of CLCA2 in SA group was obviously decreased (P<0.01) with slightly decreasing of its protein expression.Conclusion: Hypoxia promotes the expressions of mRNA and protein of CLCA2 in rat PASMCs. The ERK1/2 pathway activator Staurosporine aglycone reduces the mRNA and protein expression of CLCA2 in rats PASMCs and the ERK1/2 pathway inhibitor U0126 induces the upregulation of the mRNA and protein expressiosn of CLCA2 in rats PASMCs.

Key words: calcium activated chloride channel, hypoxia, ERK1/2, rat

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