促进长寿的线粒体未折叠蛋白反应激活需要PeBoW复合物的元素
Adebanjo Adedoja1,2, Niclole Stuhr1,3, Yifei Zhou1
1Department of Medicine, Diabetes Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.
Genes & development
|October 29, 2025
概括
降低电压依赖性离子通道-1 (VDAC-1) 功能通过激活线粒体展开蛋白反应 (UPR) 来延长寿命. PeBoW复合体调解了这种反应,对线粒体质量控制和寿命至关重要.
科学领域:
- 细胞生物学 细胞生物学
- 线粒体生物学 线粒体生物学
- 衰老研究研究 衰老研究
背景情况:
- 线粒体是细胞能量和稳态的核心,与衰老有关.
- 电压依赖性离子通道 (VDAC) 调节线粒体运输;其失调与疾病和衰老有关.
- 在*C. elegans*中增加的VDAC-1通过增加线粒体透性来减少寿命.
研究的目的:
- 为了研究降低VDAC-1功能影响寿命的机制.
- 为了确定线粒体展开蛋白质反应 (UPRmt) 激活的媒介.
- 探索PeBoW复合体在线粒体应激反应和寿命中的作用.
主要方法:
- *C. elegans*模型具有改变的VDAC-1功能.
- 没有偏见的基因组发现屏幕.
- 对线粒体未折叠蛋白质反应 (UPR) 激活的分析.
- 评估寿命和线粒体蛋白质稳定.
主要成果:
- 减少VDAC-1功能可以延长C. elegans*的寿命.
- 寿命延长是由线粒体展开蛋白反应 (UPR) 的激活介导的.
- 编码PeBoW复合蛋白的基因是UPR激活的关键调解者,并且在对线粒体压力因素的反应中普遍需要.
结论:
- 减少的VDAC-1功能通过UPR激活促进长寿.
- PeBoW复合体在UPRmt诱导和寿命延长中起到以前未知的作用.
- 在压力下,PeBoW组件对于线粒体质量控制和长寿途径至关重要.
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