USP7通过duebiquitination和FBXO7的稳定减弱了内质网膜压力诱导的细胞死亡
Su Hyoun Lee1, Kwang Chul Chung1
1Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea.
PloS one
|October 24, 2023
概括
乌比基特异性蛋白酶7 (USP7) 稳定F-box只有蛋白7 (FBXO7),减轻内质网膜应激和亡. 这种USP7-FBXO7相互作用对于帕金森病的发病过程至关重要.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 帕金森病 (PD) 涉及多巴胺基神经元损失和有毒蛋白质聚合物.
- 细胞内膜网膜 (ER) 压力与PD等神经退行性疾病 (NDD) 有关.
- 在FBXO7 (PARK15) 突变导致早期家族性PD;其调节不清楚.
研究的目的:
- 研究乌比基特异蛋白酶7 (USP7) 在PD病变发生过程中的作用.
- 确定USP7对FBXO7.7.的监管机制.
- 为了确定USP7对ER压力诱导的亡的影响.
主要方法:
- 研究了USP7与FBXO7.7的相互作用.
- 分析了USP7在FBXO7.7.上对FBXO7.7的二氧化化活性.
- 评估了USP7对ER压力诱导的细胞死亡和FBXO7稳定性的影响.
主要成果:
- USP7通过与Lys48相关的deubiquitination积极调节FBXO7的稳定性.
- USP7 防止了FBXO7 蛋白质体的降解.
- USP7通过稳定FBXO7.7来减轻ER压力诱导的细胞毒性和亡.
结论:
- USP7是FBXO7的新型调节剂,增强了其稳定性.
- USP7-FBXO7相互作用在ER压力诱导的亡中起着关键作用.
- 这一途径对于了解帕金森病的发病过程具有重要意义.
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