阿皮利莫德通过溶酶体介导的线粒体损伤激活NLRP3炎症体
Yingting Hou1,2, Hongbin He1, Ming Ma1,2
1Center for Advanced Interdisciplinary Science and Biomedicine of Institute of Health and Medicine (IHM), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
Frontiers in immunology
|June 26, 2023
概括
阿皮利莫德是一种溶酶体干扰剂,激活NLRP3炎症体,这是先天免疫的关键组成部分. 这种药物触发了溶酶体的释放,导致细胞损伤和炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- NLRP3炎症体是先天免疫系统中的关键传感器,介导IL-1β分泌和热致死等炎症反应.
- 已知溶解体损伤会触发NLRP3炎症酶激活,但精确的分子机制尚未完全理解.
研究的目的:
- 为了识别调节NLRP3炎症酶活性的小分子.
- 阐明 lysosomal 损伤导致 NLRP3 炎症酶激活的机制.
主要方法:
- 一个小分子库的选,以识别NLRP3激动剂.
- 研究阿皮利莫德对炎症酶激活,IL-1β分泌和热的作用.
- 分析流出,直接结合,线粒体损伤, lysosomal 功能障碍和流在 apilimod 诱导的 NLRP3 激活中的作用.
主要成果:
- 阿皮利莫德被确定为一种选择性和强大的NLRP3激动剂,诱导炎酶激活,IL-1β分泌和热.
- 通过阿皮利莫德介导的NLRP3激活独立于流和直接结合.
- 阿皮利莫德会触发线粒体损伤和 lysosomal 功能障碍,特别是诱导TRPML1-依赖的流在 lysosomes,这随后导致线粒体损伤和NLRP3炎症酶激活.
结论:
- 阿皮利莫德表现出促炎酶体活性,并作为研究NLRP3炎酶体激活的宝贵工具.
- 这项研究揭示了依赖的新型机制,酶介导的NLRP3炎症酶激活途径,涉及TRPML1和线粒体损伤.
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