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在缺血性中风后,VEGF-E通过促进修复性再血管化来减轻损伤
Romain Menet1,2, Leila Nasrallah1,2, Maxime Bernard1,2
1Department of Psychiatry and Neuroscience, Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada.
The European journal of neuroscience
|April 25, 2025
概括
血管内皮生长因子 (VEGF) -E在缺血性中风后促进稳定的再血管化,改善神经恢复和大脑输液,比VEGF-A更好. 这表明VEGF-E是中风恢复的有希望的治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
- 再生医学是一种再生医学.
背景情况:
- 脑卒中诱导的血管生成对于恢复至关重要,但可以被血管内皮生长因子 (VEGF-A.A.) 破坏稳定.
- VEGF-A疗法存在血管并发症的风险.
- 作为VEGF-A同源的VEGF-E促进了稳定的血管和伤口愈合.
研究的目的:
- 调查VEGF-E作为在缺血性中风后修复性再血管化的潜在治疗方法.
- 在小鼠中风模型中比较VEGF-E与VEGF-A的疗效和安全性.
主要方法:
- 在C57BL6/J小鼠中诱导实验性中风.
- 在亚急性阶段,VEGF-E或VEGF-A通过鼻腔输送.
- 评估了神经恢复,血管密度,透性和大脑输液.
- 基于细胞的测定检查了内皮细胞-细胞相互作用和信号通路 (PDGF-D,ERK,MAPK).
主要成果:
- 在不影响透性的情况下,VEGF-E改善了神经恢复和增加了血管密度,性能优于VEGF-A.
- VEGF-E恢复了正常的大脑输液,而VEGF-A导致了高输液.
- VEGF-E增强了内皮细胞-细胞相互作用,并减少了微血管停滞.
- VEGF-E增加了PDGF-D的表达,并在大脑内皮细胞中激活了ERK/MAPK信号.
- 受到VEGF-E刺激的内皮细胞促进了细胞周转移.
结论:
- 在缺血性中风后,VEGF-E促进了稳定和功能性的再血管化.
- 在中风治疗中,VEGF-E提供了一个比VEGF-A更安全,更有效的替代品.
- 对于缺血性中风的VEGF-E的治疗潜力需要进一步研究.
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