疾病活动驱动着系统性红斑狼中单细胞亚群的异异表观遗传和转录基因重编程
Anna Guiomar Ferreté-Bonastre1, Mónica Martínez-Gallo2, Octavio Morante-Palacios3
1Epigenetics and Immune Disease Group, Josep Carreras Leukaemia Research Institute (IJC), Badalona, Barcelona, Spain.
Annals of the rheumatic diseases
|February 27, 2024
概括
系统性红斑狼 (SLE) 改变单细胞表观遗传学和转录组学,影响分化和功能. 这些变化与疾病活动和进展相关,为预测生物标志物提供了潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 文字转录学 (Transcriptomics) 是一个学科.
- 系统性红斑狼 (SLE) 是一种
背景情况:
- 系统性红斑狼 (SLE) 涉及由各种免疫细胞,特别是单细胞驱动的系统性炎症.
- 单细胞分化为经典,中间和非经典的子集,在SLE炎症中发挥着不同的作用.
- 了解单细胞子集的动态对于SLE的发病和进展至关重要.
研究的目的:
- 在SLE患者中研究单细胞子集的表观遗传和转录组概况.
- 为了将这些概况与SLE疾病活动和进展相关联.
- 确定新型单细胞子集及其在SLE中的作用.
主要方法:
- 从SLE患者和健康捐赠者获得经典,中间和非经典单细胞的DNA甲基组和转录组.
- 集成的批量数据与单细胞转录组学从SLE和健康的捐赠者.
- 分析了与疾病活动和进展有关的数据.
主要成果:
- 在SLE单细胞中确定了具有强烈干扰素特征的共享DNA甲基化和转录基因变异.
- 发现了单细胞子集特异性变化,特别是在DNA甲基化中,影响了SLE中的单细胞分化.
- 观察到的SLE经典单细胞具有预炎性特征,为巨细胞分化做准备;非经典单细胞显示T细胞分化表型.
- 发现单细胞比例,DNA甲基化和表达与疾病活性之间的相关性,涉及STAT通路.
- 综合数据显示,SLE特异性单细胞子集的疾病活动依赖的扩张,并将中间/非经典种群与加剧的补充激活联系在一起.
结论:
- 在SLE中疾病活动深刻地改变单细胞分化表观遗传学和转录组学.
- 这些变化会影响单细胞子集的功能.
- 这些发现使得开发SLE活动和进展的预测方法成为可能.
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