血蛋白质组概况显示,在SARS-CoV-2感染的急性后续症状中,持续的免疫激活
Serena Fineschi1,2, Joakim Klar3,4, Jens Schuster3
1Department of Public Health and Caring Sciences, Faculty of Medicine, Uppsala University, Uppsala, Sweden.
Frontiers in immunology
|March 11, 2026
概括
长期COVID (PASC) 患者表现出持续的炎症特征,其中包括哥斯M (OSM) 和IL-1受体对手 (IL1RN) 等蛋白质的升高,这表明免疫激活正在进行中.
科学领域:
- 免疫学 免疫学 免疫学
- 蛋白质组学是指蛋白质组学.
- 在SARS-CoV-2感染 (PASC) 后急性后续研究中.
背景情况:
- SARS-CoV-2 感染 (PASC) 的急性后续,通常称为长期COVID, presents一个复杂的临床挑战.
- 了解PASC的潜在生物机制对于开发有效治疗方法至关重要.
研究的目的:
- 为了研究患有PASC的个体的血蛋白质组概况.
- 为了确定与PASC相关的特定蛋白质生物标志物.
- 阐明参与PASC持续症状的免疫路径.
主要方法:
- 使用近距离延伸测定技术对92名PASC患者进行血蛋白质组分析.
- 358种蛋白质的量化,与26种蛋白质的差异表达分析.
- 利用随机森林和基因组丰富分析来识别关键蛋白质和激活免疫通路.
主要成果:
- 在PASC患者中鉴定了26种差异表达蛋白 (DEP),其中Onkostatin M (OSM) 和IL-1受体对抗剂 (IL1RN) 是最上调的.
- 确认IL1RN,OSM,ANGPTL2,HLA-DRA和CLEC4A作为PASC患者和对照人群之间的显著歧视因素.
- 揭示了关键免疫路径的激活,包括炎症反应,TNF-α/NF-κB信号传递和IL-6/JAK/STAT3,表明持久的先天和适应性免疫激活.
结论:
- PASC的特点是明显的,持久的低级炎症特征.
- 观察到的炎症似乎独立于正在进行的病毒复制,因为血尖端蛋白水平没有差异.
- 研究结果表明,PASC中存在统一的炎症机制,但没有证据表明有不同的生物亚型.
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