在暴露于病毒后的长期COVIDPBMC中,IFN-I反应过度模仿病毒
Bart Humer1, Julia C Berentschot2, Cornelia G van Helden-Meeuwsen3
1Department of Immunology, Erasmus MC, University Medical Center Rotterdam, P.O Box 2040, 3000 CA, Rotterdam, The Netherlands. b.humer@erasmusmc.nl.
Journal of clinical immunology
|December 10, 2025
概括
长期COVID患者表现出高反应性免疫细胞,对病毒模仿物表现出夸张的反应. 这种增强的免疫反应性可能有助于长期COVID的病理生理学,并需要进一步研究INTERFERON-I途径.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 遗传学 遗传学 是一个
背景情况:
- 长期COVID (LC) 病理生理学仍然不清楚,免疫失调是可疑的原因.
- 感染后的表观遗传变化可能会激发免疫细胞的反应性.
- I型干扰素 (IFN-I) 途径激活是LC中免疫动态变化的潜在机制.
研究的目的:
- 为了调查长期COVID患者是否表现出高反应性免疫细胞表型.
- 为了比较LC患者和健康对照者 (HC) 之间的免疫细胞对病毒模仿的反应.
- 探索IFN-I通路激活在长期COVID中的作用.
主要方法:
- 来自两个LC和HC队列的外周血液单核细胞 (PBMC) 用cGAS和RIG-I激动剂 (G3-YSD和3p-RNA) 刺激.
- 使用记者细胞系测量IFN-I生物活性.
- 使用无监督的等级聚类来分析免疫细胞的反应.
主要成果:
- 与HC相比,LC患者的PBMC在刺激时显著增加了IFN-I生物活性.
- 基于免疫反应的基础上,分离患者和HC成不同的群体.
- 在LC患者中观察到RIG-I刺激和疲劳严重程度之间的相关性.
结论:
- 长期COVID患者在受到病毒模仿剂刺激时表现出高反应性免疫细胞表型.
- 异常的IFN-I通路激活与长期COVID有关.
- 准IFN-I途径为长期COVID提供了一个潜在的治疗策略.
关键词:
表观遗传记忆是一种表观遗传记忆.疲劳 疲劳 疲劳 疲劳 疲劳天生的免疫记忆天生的免疫记忆.长时间的COVID.帕斯克 (Pasc) 是一个过去.在RIG-I中,RIG-I是指RIG-I.这是一种I型干扰子.cGAS 是一个气体.更多相关视频
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