当蛋白质变异时:未展开的蛋白质反应和ER压力
Doria Meiseles1, Narkis Arbeli1, Moran Dvela-Levitt1
1The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.
Nephron
|March 4, 2025
概括
细胞蛋白质稳定维护蛋白质平衡,但错误折叠的蛋白质会触发细胞内网膜 (ER) 的压力和未折叠的蛋白质反应 (UPR). 本综述探讨了UPR传感器和治疗蛋白质错折疾病的治疗策略.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 生物化学 生化学
背景情况:
- 细胞蛋白质稳定机制通过质量控制系统维持蛋白质稳定.
- 错误折叠的蛋白质的积累压倒了保护机制,破坏了蛋白质稳定,并导致了病理.
- 在分泌途径中错误折叠的蛋白质会诱导内质网膜 (ER) 的压力,激活未折叠蛋白质反应 (UPR).
研究的目的:
- 审查三个UPR跨膜传感器的信号通路:PERK,IRE1和ATF6.6.
- 讨论UPR激活的转录程序在细胞反应和细胞命运中的作用.
- 为了评估治疗蛋白质错折疾病的治疗策略.
主要方法:
- 对UPR信号通路和蛋白质错折疾病的文献综述.
- 对导致疾病异质性的遗传和环境因素的分析.
- 治疗方法的批判性评估,包括蛋白质稳定,贩运调制和UPR传感器准.
主要成果:
- 该UPR涉及三个关键传感器 (PERK,IRE1,ATF6) 激活不同的转录程序.
- 遗传变异和环境因素影响蛋白质错折疾病的表现.
- 治疗策略旨在稳定蛋白质,调节贩运或准UPR传感器.
结论:
- UPR传感器通路关键调节细胞对蛋白质压力的反应,并决定细胞命运.
- 蛋白质错误折叠可能会损害功能,导致毒性积累,并诱导细胞应激.
- 像法布里病这样的疾病的有效治疗可能需要结合疗法,以解决蛋白质功能的损失和增加.
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