连续的棕化和化协调NLRP3膜贩运和炎症酶激活
Li Nie1, Chenjie Fei1, Yizeng Fan2
1State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, School of Marine Sciences, Ningbo University, Ningbo 315211, P.R. China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, P.R. China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Ningbo University, Ningbo 315211, P.R. China.
Molecular cell
|August 22, 2024
概括
在疾病中至关重要的NLRP3炎症酶由棕化和化调节. 本研究详细介绍了zDHHC1-介导的棕化和LATS1/2化如何控制NLRP3的贩运和激活.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- NLRP3炎症体在免疫反应中起着至关重要的作用,并与各种疾病有关.
- NLRP3激活涉及复杂的亚细胞事件,包括膜贩运和构造变化,在微管组织中心 (MTOC) 炎酶组装之前.
研究的目的:
- 阐明NLRP3炎症酶激活的调节机制,重点关注其亚细胞贩运和组装.
- 研究棕化和化在控制NLRP3局部化和激活中的作用.
主要方法:
- 利用人类和小鼠细胞模型研究NLRP3炎症酶激活.
- 研究了棕基转移酶zDHHC1在NLRP3棕化和亚细胞贩运中的作用.
- 在MTOC检查了NLRP3通过LATS1/2的酸化及其与NEK7.7的相互作用.
主要成果:
- NLRP3通过zDHHC1进行棕化,通过zDHHC1在线粒体,TGN和内分泌体之间进行中介.
- 棕化促进NLRP3定位到MTOC,在那里它被LATS1/2.2.化.
- 这种酸化增强了NLRP3与NEK7的相互作用,导致完全的炎症酶激活.
- 在小鼠中,zDHHC1缺乏减少了LPS诱导的炎症和改善了生存率.
结论:
- NLRP3的激活通过一个涉及zDHHC1-依赖的棕化和LATS1/2-介导的酸化的序列过程来严格调节.
- 这些翻译后的修改协调了NLRP3膜的贩运和在MTOC的组装,为炎症性疾病提供了潜在的治疗点.
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