在十字路口展开的蛋白质反应:将内质网膜压力与细胞压力网络集成
Sebastian Gawlak-Socka1, Edward Kowalczyk1, Anna Wiktorowska-Owczarek1
1Department of Pharmacology and Toxicology, Medical University of Lodz, Zeligowskiego 7/9, 90-752 Lodz, Poland.
International journal of molecular sciences
|February 27, 2026
概括
展开的蛋白质反应 (UPR) 通过协调蛋白质折叠在内分泌网膜 (ER) 中来管理细胞压力. 暂时的UPR激活有助于适应,而持续的ER压力导致细胞功能障碍和细胞亡.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 细胞内膜网膜 (ER) 对于细胞蛋白质稳定至关重要,控制蛋白质折叠,脂质代谢和信号传递.
- 在ER功能中断触发了展开的蛋白质反应 (UPR),一个涉及PERK,IRE1α和ATF6.6的保存信号网络.
研究的目的:
- 对UPR信号通路的机制性见解进行审查.
- 探索UPR和其他细胞应激反应之间的交叉声,包括氧化应激,线粒体功能,自和炎症.
- 为理解ER蛋白质稳定和在压力下细胞命运决策提供一个框架.
主要方法:
- 整合来自生物化学和结构研究的证据.
- 对遗传和药物干扰模型的分析.
- 在PubMed和谷歌学者 (2000-2025) 的体内调查的审查.
主要成果:
- 暂时的UPR激活通过协调的转录,转化和器官特异性反应促进细胞适应.
- 持续或未解决的ER压力将UPR信号转移到诸如线粒体功能障碍,失调的自,氧化失衡和亡等不适应的结果.
- UPR是多种细胞应激反应途径的中心协调者,而不仅仅是减轻压力的机制.
结论:
- 在压力下,UPR在细胞适应和生存中发挥着关键作用.
- 了解UPR与其他压力通路的相互联系是解读细胞命运决定的关键.
- UPR信号的失调有助于细胞功能障碍和疾病进展.
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