在没有传统风险因素的早发性心肌梗塞患者中,外周血液单核细胞过敏反应
Jan-Quinten Mol1, Julia van Tuijl2, Siroon Bekkering2
1Department of Cardiology, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands.
iScience
|July 17, 2023
概括
心肌梗塞 (MI) 患者缺乏标准风险因素,显示单细胞炎症的增加. 这种"训练有素的免疫力"可能是动脉血事件的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管疾病 心血管疾病
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 动脉血性心肌梗塞 (MI) 发生在没有标准可修改危险因子 (SMuRFs) 的患者中.
- 单细胞和巨细胞是动脉样硬化发展的关键.
- 单细胞可以通过表观遗传重编程获得超炎症状态,称为"训练免疫力",可能驱动动动脉动生成.
研究的目的:
- 在SMuRFlessMI患者中调查与训练免疫相关的单细胞表型,功能和表观遗传修饰.
- 将这些发现与匹配的健康对照进行比较.
主要方法:
- 评估循环单细胞表型和功能.
- 分析与训练免疫相关的特定基因素标记 (例如,H3K4me3).
- 在SMuRFlessMI患者和健康对照者之间进行比较.
主要成果:
- 来自SMuRFlessMI患者的单细胞表现出增加的细胞因子生产能力,即使没有系统性炎症.
- 在这些患者中,观察到LPS诱导的互白素-10产量的显著升高.
- 在SMuRFlessMI患者的单细胞中,在促进体区域发现了允许性基因素标记物H3K4me3的丰富.
结论:
- 在单细胞中训练有素的免疫力可能有助于缺乏传统风险因素的肌肉中风患者的动脉动脉生成.
- 这种表观遗传重编程为这个患者群体提供了潜在的治疗点.
- 对训练免疫的进一步研究可能会导致对动脉血性疾病的新型治疗策略.
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