脱乙酶SIRT1调节抗病毒先天免疫力和自身免疫性疾病
Shuang-Shuang Yu1, Hengxiang Yu1, Shijin Geng1
1Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Medicine Innovation Center for Fundamental Research on Major Immunology-related Diseases, Peking University, Beijing 100191, China.
International journal of biological macromolecules
|September 26, 2025
概括
赛尔图因1 (SIRT1) 通过去乙IRF3/IRF7,抑制干扰素的产生来负面调节抗病毒反应. 抑制SIRT1增强抗病毒免疫力,并显示病毒感染和自身免疫性疾病的治疗潜力.
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:
- 赛尔图因1 (SIRT1) 参与免疫调节,但其在抗病毒信号传递中的作用尚不清楚.
- 在SIRT1表达和抗病毒免疫反应之间存在反向相关性.
研究的目的:
- 调查SIRT1在病毒诱导的I型干扰素 (IFN-I) 生产中的作用.
- 阐明SIRT1调节抗病毒信号的分子机制.
主要方法:
- 对GEO数据集的生物信息分析.
- 在体外实验涉及SIRT1过度表达和淘汰的实验.
- 共同免疫沉和西方抹布用于研究蛋白质相互作用和翻译后修改.
- 使用EX527.7进行SIRT1的药理抑制.
- 使用Trex1缺乏的小鼠进行体内研究.
主要成果:
- SIRT1负面调节病毒诱导的IFN-I产生以脱乙酶依赖的方式.
- SIRT1与IRF3和IRF7发生物理相互作用,使它们脱乙并抑制它们的核转位.
- 药理上抑制SIRT1可以增强抗病毒反应.
- 在患有自身免疫性疾病的患者中,SIRT1表达与IFN-I通路激活相反相关.
- 激活SIRT1可改善自身免疫性疾病的小鼠模型中的疾病表型.
结论:
- 通过去乙化IRF3/IRF7.1,SIRT1作为先天性免疫常态稳定的一种类风静电剂.
- 向SIRT1为病毒感染,干扰病和自身免疫性疾病提供了治疗潜力.
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