非经典的循环单细胞表达高水平的微体质前列腺素E2合成酶-1标记在全身性硬化症中异常的IFN反应
Gonzalo Villanueva-Martin1, Marialbert Acosta-Herrera2, Elio G Carmona2
1Department of Cell Biology and Immunology, Institute of Parasitology and Biomedicine López-Neyra, CSIC, Granada, Spain.
Journal of autoimmunity
|August 26, 2023
概括
系统性硬化症 (SSc) 涉及纤维化和免疫细胞的改变. 在SSc患者的外周血液单细胞 (Mos) 显示出变化,非经典单细胞增加和M2经典单细胞减少,表明潜在的生物标志物.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 基因组学就是基因组学.
背景情况:
- 系统性硬化症 (SSc) 是一种纤维结合组织疾病.
- 周围血液单细胞 (Mos) 参与SSc的发病.
- 了解SSc中的单细胞子集对于识别疾病机制和治疗点至关重要.
研究的目的:
- 用单细胞转录学研究CD14+外周血液单细胞在系统性硬化症中的作用.
- 确定与SSc.相关的特定单细胞子集及其分子特征.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 在8名SSc患者和8名健康对照者的外周血液CD14+单细胞上进行.
- 使用无监督聚类来分类单细胞子集.
- 进行了差异基因表达分析,以确定SSc特定的分子特征.
主要成果:
- CD14+单细胞被分为11个不同的群体,细化已知的单细胞子集 (经典,中间,非经典) 并确定2型树突细胞.
- 在SSc患者中,非经典单细胞 (ncMos) 显著增加,表现出活性IFN签名,增加PTGES表达和单细胞运动/粘附标记的升高.
- 确定了一个特定的SSc相关的中间单细胞 (iMos) 集群,具有IRF7和STAT1激活以及异常的IFN反应.
- 在SSc患者中观察到M2极化经典单细胞 (cMos) 的耗尽.
结论:
- 周围血液单细胞在全身性硬化症中表现出不同的特征.
- 异常的干扰素反应和单细胞子集分布的改变 (ncMos增加,M2 cMos减少) 是SSc的特征.
- 周围血液单细胞是SSc诊断的潜在生物标志物,也是调节SSc先天免疫反应的新疗法标.
关键词:
CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14 CD14一个单细胞单细胞.单细胞转录组是一个单细胞转录组.系统性硬化症 系统性硬化症这就是 scRNA-seqq.更多相关视频
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