胎盘生长因子调节了内皮NO的产生,并加剧了实验性肝肺综合征
Fabien Robert1,2, Feriel Benchenouf1,2, My Ngoc Ha1,2
1Université Paris-Saclay, Unité Mixte de Recherche en Santé (UMR_S) 999 Hypertension Pulmonaire: Physiopathologie et Innovation Thérapeutique (HPPIT), Le Kremlin-Bicêtre, France.
JHEP reports : innovation in hepatology
|February 21, 2025
概括
胎盘生长因子 (PlGF) 通过影响氧化,使肝硬化中的肝肺综合征 (HPS) 恶化. 缺少plgf可以防止肝硬化引起的hps,这表明plgf是治疗点.
科学领域:
- 血管生物学 血管生物学
- 肝病学 肝病学是一种肝病学.
- 肺部医学 肺部医学
背景情况:
- 肝肺综合征 (HPS) 涉及肺血管变化,导致门性高血压的低氧症.
- 胎盘生长因子 (PlGF) 在HPS病变发生过程中的作用尚不清楚.
研究的目的:
- 调查plgf在hps和患者的实验模型中的参与.
- 探索PlGF影响HPS的机制,特别是其与内皮氧化合成酶 (eNOS) 的相互作用.
主要方法:
- 在肝病和HPS患者中测量了循环Plgf水平.
- 使用HPS (CBDL和PPVL) 的老鼠模型和生成的plgf淘汰老鼠.
- 在人类肺微血管内皮细胞上进行了肺RNA测序和体外研究.
主要成果:
- 循环中的plgf水平在肝硬化中升高,但不是特别在hps中.
- PlGF缺陷对CBDL诱导的HPS有保护,但对PPVL诱导的HPS没有保护.
- PlGF调节了肺内eNOS活动,影响了氧化的产生.
结论:
- PlGF通过肺ENOS活动加剧了肝硬化诱导的HPS.
- PlGF不参与与肝外门高血压相关的HPS.
- PlGF代表了与肝硬化相关的HPS的潜在治疗标.
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