解读心力衰竭中的巨分化和细胞死亡动态:一个单细胞测序奥德赛
Jin Wei1,2,3,4,5, Yao Sun1,2,3,4,5, Bao-Xi Qu1,2,3,4,5
1Ward General Practice, Tianjin Third Central Hospital, Tianjin, China.
Frontiers in immunology
|October 23, 2025
概括
在心力衰竭 (HF) 中,特定的巨细胞亚型参与编程细胞死亡 (PCD) 途径,如铁和无菌,影响疾病的进展. 这项研究揭示了HF的不同巨细胞状态和生物标志物,提供了新的诊断和治疗途径.
科学领域:
- 心血管研究研究心血管研究
- 免疫学 免疫学 免疫学
- 细胞死亡途径 细胞死亡途径
背景情况:
- 心力衰竭 (HF) 涉及复杂的免疫失调,与巨细胞异质性和编程细胞死亡 (PCD) 途径,如铁和无菌不太了解.
- 在HF病变发生过程中的不良免疫重塑强调了研究巨细胞谱系动态及其与细胞死亡机制的参与的必要性.
研究的目的:
- 在人类心力衰竭中以单细胞分辨率划分心脏巨细胞亚群及其与PCD途径的接触.
- 确定特定亚型的分化轨迹和影响HF进展的相关细胞死亡程序.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 分析了来自心力衰竭和非衰竭捐赠者的心脏组织.
- 伪素体轨迹推断和通路活性评分 (AUCell,GSVA) 用于分析细胞死亡特征.
- 使用独立数据集进行了差异表达分析,网络映射和生物标志物验证.
主要成果:
- 解决了四种不同的巨细胞亚型,表现出高的转录异质性和与疾病相关的分化轨迹.
- 铁和阿诺基斯通路在心力衰竭巨细胞中显示出亚型特定的丰富和差异性激活.
- 抑制铁亡和阿诺基与晚期,HF丰富的巨细胞状态相关;生物标志物CD163,FPR1和VSIG4显示出诊断潜力 (AUC>0.80).
结论:
- 这项研究提供了首次对scRNA-seq,轨迹推断和心脏巨细胞中心脏巨细胞的PCD通路得分的综合分析.
- 已识别的巨细胞状态和生物标志物为HF病原发生提供了新的机制性见解,并为心血管疾病的精密免疫学提供了潜在的目标.
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