吉林大学学报(医学版)

• 基础研究 • 上一篇    下一篇

HIF-1α和RelA基因在急进高原正常人外周血单个核细胞中的表达
及其与急性高原反应的关联性

方盼盼1,2,宫璀璀1,2,仓宝成1,2,李正民1,2,李宗杰1,2,李文莉2,朱传杰2,王迎涛2   

  1. 1.郑州大学第三附属医院科研中心,河南 郑州450052;2. 中国人民解放军153中心
    医院中心实验室,河南 郑州450042
  • 收稿日期:2013-01-30 出版日期:2013-07-28 发布日期:2013-08-17
  • 通讯作者: 宫璀璀(Tel:0371-60645323,E-mail: gongcuijin@yahoo.com.cn) E-mail:gongcuijin@yahoo.com.cn
  • 作者简介:方盼盼(1988-),女,河南省周口市人,在读医学硕士,主要从事分子生物学方面的研究。
  • 基金资助:

    河南省科技厅基础与前沿技术研究计划项目资
    助课题(072300410440)

Expressions of HIF-1α  and RelA in mononuclear cells in peripheral 
blood of health adults after ascentting of plateau and their 
correlations with pathogenesis of acute mountain sickness

FANG Pan-pan1,2,GONG Cui-cui1,2,CANG Bao-cheng1,2,LI
Zheng-min1,2,LI Zong-jie1,2,LI Wen-li2,ZHU Chuan-jie2,WANG Ying-tao2   

  1. 1.Scientific Research  Center,Third Affiliated Hospital,Zhengzhou Unive
    rsity,Zhengzhou 450052,China; 2. Laboratory Center,No. 153 Hospital of PLA,Zhengzhou 450042,China
  • Received:2013-01-30 Online:2013-07-28 Published:2013-08-17

摘要:

目的:观察急进高原前后正常人单个核细胞中缺氧诱导因子1α(HIF-1α)和核转录因子NF
-κB p65亚基(RelA)表达水平的变化,探讨HIF-1α和RelA在急性高原
反应(AMS)发生中的作用及机制。方法:对某部赴玉树抗震的士兵分别于进入高原前和进入高原后
48 h采集外周血,提取单个核细胞中的mRNA和蛋白,采用RT-PCR方法检测RelA和HIF-1α mRNA表达水平,Western blotting法检测HIF-1α蛋白表达水平。Spearman相关分析法
分析RelA和HIF-1α基因表达与AMS发生的相关性。结果:与急进高原前比较,进入高原后H
IF-1α和RelA mRNA及HIF-1α蛋白表达水平均显著增高(P<0.01); HIF-1α mRNA和RelA
mRNA表达呈正相关关系(r= 0.806,P<0.01);HIF-1α蛋白表达与AMS的发生率
呈正相关关系(r= 0.875,P<0.01); HIF-1α和 RelA表达不同性别之间比较差异无统计
学意义(P>0.05)。结论:HIF-1α蛋白表达水平可作为预测和干预AMS的监测指标。
急进高原后HIF-1α和RelA mRNA表达水平显著增加且呈显著正相关关系,提示在其信号传导通路之间存在
cross-talk现象。

关键词: 急性高原反应, 缺氧诱导因子1&alpha, 核转录因子kappaB p65亚基, 缺氧, cross-talk

Abstract:

Abstract:Objective To observe the  changes of expression levels of  hypoxia-inducible factor 1 alpha(HIF-1α)and nuclear factor kappa B(NF-κB) p65 (RelA) in
mononuclear cells  after ascenting of plateau  and their correlations with the incidence
 rate of acute mountain sickness(AMS),and to explore the role and mechanism of
 HIF-1α  and RelA in pathogenesis of AMS.Methods The soldiers’ venous blood before ascentting of plateau and 48 h after arriving Yushu were collected,and the p
rotein and mRNA in mononuclear cells were extracted.The expressions of HIF-1α and RelA mRNA were determined by RT-PCR.The expression of HIF-1α  protein was
determined by Western blotting method.The correlations between the expressions of HIF-1α  and RelA and pathogenesis of  AMS were analyzed with Spearman anal
ysis.Results Compared with before ascentting,after ascentting of plateau the expression levels of  HIF-1α mRNA,RelA mRNA and
 HIF-1α   protein  were increased significantly(P<0.01).The expression of HIF-1α mRNA was positively correlated with the  RelA mRNA expression
(r=0.806,P<0.01).At the same time,the expression  of HIF-1α  protein was positively  correlated with the pathogenesis of AMS(r= 0.875,P<0.01);and the expression levels of HIF-1α  and RelA had no significant difference between women and men(P>0.05).Conclusion
The expression level of HIF-1α  protein is increased significantly after asentting of plateau,and has significantly positive correlation with the pathogenesis of AMS.The expression levels of HIF-1α  and RelA mRNA are significantly increased 48 h after ascentting of plateau,and they have positive correla
tion,prompting that the existence of cross-talk phenomenon between their signal transduction pathways.

Key words: acute mountain sickness, hypoxia-inducible factor 1 alpha , nuclear factor kappa B p65, hypoxia, cross-talk

中图分类号: 

  • R394.3