通过血管扩展剂逆转炎症重编程在肺高血压的血管扩展剂
Anna Kirillova1,2,3, Meena Sethuraman1,4,3, Xishuang Dong5
1Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung and Blood Vascular Medicine Institute, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA.
肺动脉高血压 (PAH) 患者在血管扩展剂治疗后显示炎症基因表达逆转. 这项研究确定了基于血液的标记物,用于跟踪PAH进展和治疗反应.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管医学 心血管医学
- 基因组学就是基因组学.
背景情况:
- 肺动脉高血压 (PAH) 是一种严重的疾病,缺乏有效的非侵入性诊断和预后工具.
- 血管扩张剂对PAH病原发生的炎症激活的影响尚未完全理解.
- 血液炎症细胞的单细胞分析为阐明PAH机制提供了潜在的途径.
研究的目的:
- 为了研究血管扩展剂治疗对PAH患者炎症细胞概况的影响.
- 识别潜在的基于血液的生物标志物,用于诊断和监测PAH进展和治疗反应.
主要方法:
- 单细胞RNA测序是在PAH患者 (原发性PAH和与系统性硬化相关的PAH) 和健康对照的外周血液单核细胞 (PBMC) 上进行的.
- 从未接受过治疗的PAH患者和接受化酶-5抑制剂 (PDE5i) 或PDE5i加上macitentan治疗的患者中分析了PBMCs.
- 用网络分析来评估PAH中改变的生物网络连接.
主要成果:
- 在经过血管扩展剂治疗后的PAH患者PBMC中发现了差异性的基因表达和网络连接性变化.
- 在血管扩展剂治疗后,在所有评估的PBMC类型中观察到炎症转录和通路的显著逆转.
- 单细胞中的"在代谢调节中的葡萄糖信号传递"途径通过两项独立分析显示,血管扩张器治疗后的逆转.
结论:
- 一种系统生物学方法揭示了PAH患者血液中的炎症重编程以及血管扩展剂的抗炎作用.
- 这些发现支持开发用于PAH管理的基于血液的诊断和预后工具.
- 该研究强调了监测血液中的炎症标志物的潜力,以追踪PAH进展和治疗疗效.
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