性差异和长期Covid发展的免疫相关性,症状的持续性和解决方案
Rebecca E Hamlin1, Shaun M Pienkos1, Leslie Chan1,2
1Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
Science translational medicine
|November 13, 2024
概括
免疫反应中的性别差异影响长期Covid (LC) 的发展. 这项研究揭示了男性和女性独特的免疫路径,这些免疫路径有助于LC的发病,为向治疗提供了洞察力.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 传染性疾病 传染性疾病
背景情况:
- 在COVID-19和长期Covid (LC) 结果中存在性别差异.
- 男人面临更高的急性疾病严重程度,而女性不成比例地受到LC的影响.
- 性别特异性免疫失调被假设是驱动LC病变的原因.
研究的目的:
- 调查LC发育和症状持续性的免疫学基础.
- 通过使用多原子分析来确定LC的性别特异性免疫相关物.
- 根据免疫特征,探索LC的潜在治疗点.
主要方法:
- 在急性SARS-CoV-2感染期间以及感染后3个月和12个月期间,从45名参与者的血液样本进行多原子分析.
- 在LC发病的人和康复的人之间比较免疫特征.
- 对性别特异性免疫通路的分析,包括TGF-β信号传递,XIST表达,NF-κB激活,ETS1表达和T细胞反应.
主要成果:
- 患上LC的男性在急性感染期间显示TGF-β信号增加;患上LC的女性减少了TGFB1表达.
- 患有LC的女性表现出XIST表达的增加,这是与自身免疫相关的RNA基因.
- 在LC中常见的免疫变化包括单细胞变化和NF-κB上调;在持久性LC中观察到T细胞中减少ETS1和增加IL-4.
结论:
- 该研究确定了长期Covid的多种先天性和适应性免疫相关物,其中一些因性别有显著差异.
- 性别特定的免疫失调,涉及TGF-β和XIST等途径,有助于LC.
- 研究结果表明,对于长期的Covid来说,有针对性治疗策略的潜力.
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