跨肺蛋白质组梯度识别了由于心力衰竭导致的肺血管疾病所涉及的途径
Vojtech Melenovsky1, Petr Jarolim2, Eva Kutilkova1
1Institute for Clinical and Experimental Medicine-IKEM, Prague, Czech Republic (V.M., E.K., D.J., J.B., H.A.-H., J.F., S.K., S.Y., M.A., M.M., B.A.B.).
Circulation. Heart failure
|September 23, 2025
概括
心力衰竭中的肺血管疾病 (PVD) 涉及肺部异常的蛋白质交换. 关键的炎症蛋白和生长因子与PVD的发展和进展有关.
科学领域:
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 肺血管疾病 (PVD) 将心力衰竭 (HF) 复杂化,使预后恶化.
- 在高频中PVD背后的机制仍然不太清楚.
- 识别PVD介导体对于治疗的发展至关重要.
研究的目的:
- 通过分析跨肺蛋白梯度来识别HF中PVD的媒介.
- 利用无偏的蛋白质组学来无偏地发现涉及的蛋白质.
- 为了区分HF患者的蛋白质动力学,患者的肺血管阻力 (PVR) 变化.
主要方法:
- 160名HF患者和21名对照组的肺动脉导管治疗.
- 从毛囊前和后位置取血样,以确定肺间的梯度.
- 在最高 (Q4) 和最低 (Q1) PVR四分位数中的275种蛋白质的蛋白质组分析 (奥林克试验).
主要成果:
- 肺表面活性剂相关蛋白D (PSP-D) 被确定为PVD标记物.
- 肺部高PVRHF显示炎症蛋白质 (化学因子,哥斯塔丁-M,MMP9) 和TGF/activin通路蛋白质 (GDF2/BMP9) 的吸收增加.
- 在高PVR HF中观察到IL6和IL33的显著释放,IL6的升高与右心室功能相关.
结论:
- 高PVR的HF肺部表现出异常的炎症性细胞因子 (IL6,IL33,oncostatin-M) 交换.
- 增加GDF2/BMP9的肺吸收表明它在血管重塑中起作用.
- 参与肺高血压炎症和血管重塑的蛋白质也在高血压相关的PVD中发挥作用.
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