ID1通过对抗PRMT5介导的STING甲基化来增强抗病毒免疫力
Manman Li1, Yihua Zhang1, Wenyi Jiang1
1Shanghai Public Health Clinical Center, Ningbo Research Institute and Academy for Engineering & Technology, Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai 201508, China.
Cell reports
|November 8, 2025
概括
抑制DNA结合1 (ID1) 通过破坏PRMT5介导的STING抑制来增强抗病毒免疫力. 一种PRMT5抑制剂EPZ015666,增强免疫反应,显示治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 病毒学 病毒学
背景情况:
- 干扰素基因刺激器 (STING) 对于I型干扰素在免疫反应中的信号传递至关重要.
- 甲基化在调节STING活动中的确切作用尚未完全理解.
研究的目的:
- 调查甲基化在STING激活中的调控作用.
- 探索ID1,PRMT5和STING在抗病毒免疫中的相互作用.
主要方法:
- 在病毒感染期间评估STING介导的基因表达.
- 研究了PRMT5和STING之间的蛋白质-蛋白质相互作用.
- 使用了甲基化缺陷的STING突变物.
- 研究了EPZ015666对体外和体内抗病毒反应的影响.
主要成果:
- 在病毒感染期间,ID1增强了STING介导的基因表达.
- PRMT5与STING结合,导致Arg281的甲基化,并抑制STING的激活.
- 甲基化缺陷的STING突变体显示活性增加.
- 病毒感染上调ID1,破坏PRMT5-STING相互作用并缓解抑制.
- 作为PRMT5抑制剂的EPZ015666,显著增强了抗病毒免疫反应.
结论:
- ID1和PRMT5形成了一个控制STING活动的新型监管轴.
- EPZ015666显示出作为抗病毒治疗剂的巨大潜力.
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