神经干细胞和原生细胞通过血管内皮生长因子分泌来支持和保护成人海马的功能
Lisa N Miller1, Ashley E Walters1, Jiyeon K Denninger1
1Department of Psychology, The Ohio State University, Columbus, OH, USA.
Molecular psychiatry
|November 11, 2024
概括
成人神经干细胞 (NSPCs) 分泌血管内皮生长因子 (VEGF),它支持海马功能并保护免受损伤,独立于神经发生. 这突显了NSPCs的新型非神经性作用.
科学领域:
- 神经科学是一个神经科学.
- 干细胞生物学 干细胞生物学
- 神经生物学 神经生物学 神经生物学
背景情况:
- 成人神经干细胞和前代细胞 (NSPCs) 在海马中产生新的神经元.
- 此外,NSPC还分泌可以改变其环境的因素.
- 之前的工作确定了NSPC衍生的血管内皮生长因子 (VEGF) 对于成人神经生成至关重要.
研究的目的:
- 为了调查NSPC衍生的VEGF是否影响海马体功能,独立于神经发生.
- 确定NSPC分泌的VEGF在牙状 (DG) 中的非神经性作用.
主要方法:
- 研究了改变NSPC衍生的VEGF水平对海马功能的影响.
- 评估记忆力,神经元刺激性和对激发性毒性损伤的反应.
- 检查了NSPC对总体GD VEGF和VEGF分配的贡献.
主要成果:
- 从NSPC衍生的VEGF的损失急性损害了海马内存,增加了神经元的过度兴奋性.
- 减少NSPC衍生的VEGF加剧了兴奋毒性损伤.
- 过度表达VEGF降低了对损伤的微质反应.
- 美国国家农产品保护局生产大量的 DG VEGF,它广泛分散.
结论:
- 来自NSPC的VEGF通过非神经性机制支持和保护牙状的功能.
- 这表明成年NSPCs在神经生成之外具有更广泛的功能作用.
- 通过分泌的VEGF,NSPCs积极调节海马的功能和弹性.
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