内皮TDP-43控制芽血管生成和血管屏障完整性,其删除会触发神经炎症
Víctor Arribas1, Yara Onetti1, Marina Ramiro-Pareta2,3
1Department of Physiological Sciences, Faculty of Medicine and Health Sciences, University of Barcelona and Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet del Llobregat, Spain.
JCI insight
|February 1, 2024
概括
TAR DNA 结合蛋白 43 (TDP-43) 对于血管形成和稳定性至关重要. 内皮细胞中TDP-43的损失会损害血管的生长和完整性,影响血管功能.
科学领域:
- 分子生物学分子生物学
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
背景情况:
- 塔尔DNA结合蛋白43 (TDP-43) 以其在基因调节和神经元功能中的作用而闻名.
- 它在内皮细胞 (ECs),血管生成和血管健康中的功能在很大程度上仍未被探索.
研究的目的:
- 研究TDP-43在内皮细胞中的作用及其对血管生成和血管稳定性的影响.
- 阐明TDP-43在血管发育和维护中的作用的机制.
主要方法:
- 使用可诱导的EC特定的TDP-43-Knockout (KO) 鼠标模型.
- 分析了视网膜的低血管化,血管发芽,EC增殖,迁移和血脑屏障的完整性.
- 检查了纤维内素矩阵和β-catenin信号通路.
主要成果:
- 对TDP-43的EC特异性删除导致视网膜低血管化和发芽血管生成受损.
- 失去TDP-43会损害血管屏障的完整性和血管的稳定性,影响成熟的血管.
- 血管缺陷与受损的纤维内素矩阵和降低的β-catenin信号在ECs,以及神经炎症相关.
结论:
- TDP-43对于生长血管生成,血管屏障完整性和血管稳定性至关重要.
- 在形成稳定和成熟的血管系统方面,TDP-43起着至关重要的作用.
- 在EC中TDP-43的功能障碍对血管健康和潜在的神经退行性疾病有重大影响.
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