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A Combinatorial Single-cell Approach to Characterize the Molecular and Immunophenotypic Heterogeneity of Human Stem and Progenitor Populations
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单细胞转录基因分析显示HFpEF和HFrEF之间的细胞类型异质性.

Xingqi Xiao1, Wenqian Wu1, Qilong Mao1,2

  • 1State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China.

Communications biology
|October 7, 2025
PubMed
概括

这项研究揭示了心脏衰竭与保存喷射分数 (HFpEF) 和心脏衰竭与减少喷射分数 (HFrEF) 之间的心脏细胞的关键差异. 心肌细胞是HFpEF中的中央通信枢纽,具有不同的亚型和遗传调节.

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科学领域:

  • 心血管生物学 心血管生物学
  • 基因组学就是基因组学.
  • 系统生物学 系统生物学

背景情况:

  • 保存喷射分数 (HFpEF) 的心力衰竭是一种异质综合征,与减少喷射分数 (HFrEF) 的心力衰竭不同.
  • HFpEF和HFrEF之间的细胞异质性差异在很大程度上是未知的.
  • 缺乏有效的HFpEF治疗方法.

研究的目的:

  • 描述HFpEF与HFrEF中的细胞类型和亚型异质性.
  • 在HFpEF中研究细胞-细胞通信网络.
  • 探索HFpEF和HFrEF背后的遗传敏感性.

主要方法:

  • 从HFpEF和HFrEF患者的21,747个心脏细胞的单细胞RNA测序 (scRNA-seq).
  • 细胞对细胞通信的分析.
  • 调节分析. 调节分析.
  • 集成scRNA-seq,全基因组关联研究 (GWAS) 和表达定量特征位置 (eQTL) 数据.

主要成果:

  • 心肌细胞,而不是内皮细胞或纤维细胞,是HFpEF中占主导地位的通信枢纽.
  • 在心肌细胞亚型中,HFpEF和HFrEF之间存在显著的异质性.
  • 一种特定的HFpEF心肌细胞亚型显示脂肪酸代谢基因表达变化和特定转录因子 (Ppargc1a,Atf6,E2f6,Mitf) 的高调节.
  • 确定了210个高频敏感性基因,并与分子数据集成.

结论:

  • 这项研究提供了一个关于心肌细胞在HFpEF和HFrEF中的差异的全面地图.
  • 这些发现强调了心肌细胞亚型和通信在HFpEF中的关键作用.
  • 已识别的分子标为HFpEF和HFrEF提供了潜在的治疗途径.