一个心-脑-轴控制心脏重塑到高血压压力
Sara Perrotta1, Lorenzo Carnevale1, Marialuisa Perrotta2
1Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Pozzilli, Italy.
Immunity
|March 1, 2025
概括
高血压性心脏病涉及神经反射扩大心脏巨细胞以抵消心力衰竭. 这种由胎盘生长因子 (PlGF) 驱动的适应性反应对于在压力下维持心脏功能至关重要.
科学领域:
- 心血管科学 心血管科学
- 神经免疫学 神经免疫学
- 内分泌学 在内分泌学.
背景情况:
- 高血压性心脏病 (HTN-HD) 是死亡的主要原因,从适应性反应到左心室 (LV) 功能障碍和心力衰竭 (HF) 的进展.
- 交感神经系统 (SNS) 活动升高和巨细胞扩张是高血压压力的标志,但它们在HTN-HD补偿期间的相互作用是未知的.
研究的目的:
- 阐明同情神经系统和巨细胞在高血压心脏病的补偿阶段之间的相互作用.
- 确定身体适应高血压压力的机制,并防止心力衰竭.
主要方法:
- 研究了LV压力过载模型,以确定涉及HTN-HD的神经电路和信号通路.
- 利用脏神经免疫轴抑制和心脏驻留巨细胞 (RM) 特定受体 (神经平素-1,NRP1) 切除来评估功能影响.
- 与人类心脏缩相关的循环胎盘生长因子 (PlGF) 水平,并检查了心脏衰竭患者的NRP1表达.
主要成果:
- LV压力过载激活了脑干神经回路,增强脏SNS活动并诱导胎盘生长因子 (PlGF) 的分泌.
- 在高血压压力期间,plGF促进了表达其受体NRP1的心脏RM的扩散.
- 在RM中抑制神经免疫轴或NRP1损害了适应性反应,导致HF. 循环中的PlGF与心脏缩相关,心脏衰竭显示RM NRP1表达.
结论:
- 涉及神经反射的多器官反应扩大心脏NRP1+ RMs,以抵消高血压压力期间的心力衰竭.
- 胎盘生长因子 (PlGF) 和它在心脏居民巨细胞 (RMs) 上的受体神经素-1 (NRP1) 对适应性应对高血压心脏病至关重要.
- 这项研究揭示了一种新的神经免疫机制,对于预防高血压心脏病中心力衰竭进展至关重要.
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