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内质网应激的信号通路及其与细胞凋亡相关疾病关系的研究进展
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  • 作者:叶勇 ; 赵海霞 ; 张长城
  • 关键词:内质网应激 ; 细胞凋亡 ; 凋亡相关疾病
  • 中文刊名:SDYY
  • 英文刊名:Shandong Medical Journal
  • 机构:三峡大学第一临床医学院;三峡大学医学院;
  • 出版日期:2019-06-15
  • 出版单位:山东医药
  • 年:2019
  • 期:v.59;No.1139
  • 语种:中文;
  • 页:SDYY201917028
  • 页数:4
  • CN:17
  • ISSN:37-1156/R
  • 分类号:104-107
摘要
细胞凋亡是指生理性或者病理性因素触发细胞内预存的死亡程序,内质网应激(ERS)在细胞凋亡过程中发挥着重要作用。氧化应激、Ca2+稳态失衡及缺氧等可引起蛋白质在内质网内的折叠受到抑制,促使未折叠蛋白聚集,引起ERS,激活未折叠蛋白反应,若此反应持续存在,则可诱发细胞凋亡。ERS包括PERK、IRE1、ATF6三条经典的信号通路,由PERK介导的信号通路能快速减少蛋白质的合成,减轻内质网的负荷; IRE1和ATF6介导的信号通路能增加内质网分子伴侣蛋白的合成,增加内质网蛋白的折叠、转运和降解的能力,减轻内质网的负荷。ERS参与了心肌缺血再灌注损伤、衰老、骨质疏松、肝硬化、肿瘤等疾病的发生发展,针对ERS进行干预有望成为治疗凋亡相关疾病的重要靶点。
        
引文
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