机器学习在HFpEF心脏中识别了明显的Treg介导重塑,这些心脏被治疗了新生儿介质干细胞及其分泌体
bioRxiv : the preprint server for biology
|February 9, 2026
概括
新生儿介质层细胞 (nMSCs) 和它们的分泌体 (SEC) 通过促进调节性T细胞 (Tregs) 来改善心力衰竭与保存的喷射分数 (HFpEF). 在HFpEF模型中,这种免疫调节是恢复心脏功能的关键.
科学领域:
- 心脏病学 心脏病学
- 再生医学是一种再生医学.
- 免疫学 免疫学 免疫学
背景情况:
- 由于其异质性,心力衰竭与保留喷射分数 (HFpEF) 存在复杂的挑战.
- 新生儿介质层细胞 (nMSCs) 和它们的分泌体 (SEC) 显示出治疗心力衰竭的潜力.
研究的目的:
- 在HFpEF模型中研究nMSC和SEC疗法的疗效.
- 阐明HFpEF中这些再生疗法的潜在分子机制和因果路径.
主要方法:
- 开发了一种机器学习框架 (VIPcell),集成数据增强,PLS回归和对单核RNA测序数据的因果推理.
- 将VIPcell应用于接受治疗的HFpEF小鼠模型中的心脏组织,以确定心脏重塑的因果调节者.
- 评估功能和组织学终点,包括透缩功能,炎症,纤维化和运动能力.
主要成果:
- 在HFpEF模型中,nMSC和SEC疗法都显著改善了透析功能,减少了炎症和纤维化,并提高了运动能力.
- 因果推断确定了调节性T细胞 (Treg) 生物学和免疫调节途径作为关键的上游调节者.
- 在体内和体外研究证实了Treg扩张,Treg耗尽取消了治疗效益,确定了Tregs作为中心调解者.
结论:
- nMSC和SEC疗法通过不同的机制在HFpEF中增强透析功能,这些机制汇聚在Treg介导的免疫调节上.
- 该VIPcell框架成功识别了因果调节器,强调了Treg相关的信号在心肌恢复中.
- 这些发现支持针对HFpEF治疗的有针对性,以Treg为重点的干预措施.
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