内皮过度表达TGF-β诱导蛋白质损害静脉血栓分辨率:可能在CTEPH中的作用
Magdalena L Bochenek1,2,3, Kathrin Saar4,5, Maliheh Nazari-Jahantigh6,7
1Department of Cardiology, Cardiology I, University Medical Center Mainz, Germany.
JACC. Basic to translational science
|February 16, 2024
概括
转化生长因子β诱导蛋白 (TGFBI) 在内皮细胞中的过度表达促进纤维化静脉血栓重塑. 这导致慢性血栓栓塞性肺高血压 (CTEPH) 的血管阻塞.
科学领域:
- 血管生物学 血管生物学
- 肺高血压的病理生理学
- 血栓形成和血液静止.
背景情况:
- 内皮细胞对于静脉血栓重塑至关重要.
- 未解决的血栓导致慢性血栓栓塞性肺高血压 (CTEPH) 中的纤维性阻塞.
研究的目的:
- 确定静脉血栓解像度受损的内皮介质.
- 确定这些介质在CTEPH病变发生过程中的作用.
主要方法:
- 从肺内关节切除 (PEA) 标本中对内皮细胞的mRNA分析.
- 基因表达,免疫组织化学和血免疫测试.
- 静脉血栓分辨率的体外和体外模型.
主要成果:
- 发现了TGFBI的过度表达和其他与TGFβ相关的因素.
- 在内皮细胞的TGFBI过度表达增加了体外凝块纤维化.
- 在小鼠中,重组TGFBI延迟了静脉血栓的解决.
- 在CTEPH患者中血TGFBI水平升高,PEA后下降.
结论:
- 内皮TGFBI过度表达促进静脉血栓的非解和纤维化.
- TGFBI与CTEPH的病理生理学有因果关系.
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