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后COVID症状与表现出不良炎症和静血调节的内型相关
Andy Yi An1, Arjun Baghela1, Peter G Y Zhang1
1Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada.
Frontiers in immunology
|September 8, 2023
概括
长期COVID影响了许多幸存者,原因是人们对其机制的理解不足. 这项研究根据基因表达确定了三种患者内型,揭示了与持续的COVID后症状相关的不同的炎症和凝血轨迹.
科学领域:
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
- 系统生物学 系统生物学
背景情况:
- 在COVID-19感染后持续的症状,称为长期COVID,影响了近一半的幸存者.
- 长期COVID的潜在病理生理学仍然不太清楚,这表明多个宿主系统的参与.
研究的目的:
- 用系统生物学方法研究长期COVID的机制.
- 识别不同的患者内型及其相关的基因表达特征,以潜在的临床分层.
主要方法:
- 在住院和出院后,从COVID-19患者的全血中进行RNA测序 (RNA-seq).
- 不同基因表达分析,通路丰富和机器学习,以识别后COVID症状的机制.
- 在外部患者队列中验证已识别的内型.
主要成果:
- 患有和没有后COVID症状的患者表现出不同的时间基因表达变化,特别是在炎症和凝固途径中.
- 确定了三种患者内型:"已解决"",抑制性"和"未解决",具有明显的炎症/静血反应模式.
- "未解决"和"抑制"的内型与较高的长期COVID症状率有关,并通过使用基因表达签名进行外部验证.
结论:
- 患者异质性是长期COVID病理生理学的关键因素.
- 两个内型",未解决"和"抑制",与持续的炎症或凝血异常以及长期COVID症状的增加有关.
- 血液基因生物标志物可能会将患者分为内型,从而实现长期COVID的个性化治疗策略.
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