长期COVID期间持续的免疫失调体现在针对信封和核囊蛋白的抗体中
Research square
|January 16, 2026
概括
长期COVID患者表现出持续的免疫系统失调,持续长达六个月. 这包括抗体反应的改变,免疫细胞的升高和自身抗体的增加,表明正在进行的炎症和自身免疫.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
- 病毒学 病毒学
背景情况:
- 长期COVID (LC) 或SARS-CoV-2感染的急性后续 (PASC) 是一个重大的健康问题.
- 免疫失调是已知的LC的标志,但其长期进展尚未完全理解.
研究的目的:
- 在6个月内评估LC患者的SARS-CoV-2特定抗体反应,免疫细胞概况,自身抗体和细胞因子.
- 为了比较LC患者和康复患者的免疫特征.
主要方法:
- 对患有SARS-CoV-2感染的参与者的长度研究,追踪康复和LC组长达6个月.
- 分析包括SARS-CoV-2特定抗体标位 (IgG),外周免疫细胞概况 (CyTOF),自身抗体查和血清细胞因子测量.
主要成果:
- 临床临床的参与者对抗SARS-CoV-2包膜和核囊蛋白质的IgG标位持续升高.
- 在LC患者中观察到IgG1/IgG3偏差的Spike蛋白对IgG反应较低.
- 循环T卵泡辅助细胞 (cTFH) 和粘膜相关的不变T细胞 (MAIT) 的升高与抗包膜IgG相关.
- 在LC患者中,血清细胞因子 (LIF,IL-11,Eotaxin-3,HMGB-1) 和自身抗体的比率增加.
结论:
- 长期COVID的特点是持续的免疫失调,包括改变抗体生产和自身免疫力.
- 研究结果表明,在长期COVID管理中,病毒持久性,抗体失调和自身免疫力等方面存在潜在的治疗点.
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