相关实验视频

Updated: Sep 12, 2025

An Enzyme- and Serum-free Neural Stem Cell Culture Model for EMT Investigation Suited for Drug Discovery

An Enzyme- and Serum-free Neural Stem Cell Culture Model for EMT Investigation Suited for Drug Discovery

Published on: August 23, 2016

通过Wnt3a/β-catenin通路对Aβ受损的神经干细胞的迁移和分化:17β-E2的保护作用

Ying Yang¹, Lingdi Zhang¹, Yixin Zhao¹

¹Department of Human Anatomy, School of Basic Medical Sciences Chengde Medical University, Chengde 067000 Hebei Province, China.

Neuroscience letters

|August 10, 2025

概括

这项研究表明,17β-雌激醇 (17β-E2) 可以保护神经干细胞 (NSCs) 受到阿尔茨海默病 (AD) 病理损伤. 它通过激活Wnt3a/β-catenin通路来增强NSC迁移和神经元分化.

科学领域:

神经科学是一个神经科学.
内分泌学在内分泌学.
细胞生物学细胞生物学

背景情况:

阿尔茨海默病 (AD) 是一种影响老年人的神经退行性疾病,目前对性别特异性的脆弱性研究不足.
神经干细胞 (NSC) 对于神经发生是至关重要的,但它们的功能在AD中受损.

研究的目的:

研究17β-雌激醇 (17β-E2) 对粉素β (Aβ) 损坏的NSC的保护作用,重点研究分化和迁移.
为了阐明涉及Wnt3a/β-catenin通路的潜在机制,以女性为中心的AD疗法.

主要方法:

主要大鼠NSC暴露于Aβ25-35以建模AD病理.
细胞被用17β-E2处理,有或没有Wnt3a/β-catenin抑制剂 (BX795).
试验包括基因/蛋白质表达分析 (Wnt3a,β-catenin,GSK-3β),Transwell迁移和神经元标记物的免疫光 (MAP2,βIII-tubulin).

主要成果:

Aβ暴露减少了Wnt3a/β-catenin信号传递,并影响了NSC迁移和神经元分化.
17β-E2治疗恢复了Wnt3a/β-catenin水平,增强了GSK-3β酸化,并挽救了NSC迁移和分化.
使用BX795抑制Wnt3a/β-catenin消除了17β-E2.2的有益作用.

结论:

17β-E2通过GSK-3β酸化激活Wnt3a/β-catenin通路来减轻Aβ诱导的NSC功能障碍.
这些发现表明,17β-E2通过促进神经发生和NSC移动性,对AD具有治疗潜力.

关键词:

17β-雌二醇是17β-雌二醇中的一种.阿尔茨海默氏症是阿尔茨海默氏症的一种疾病.不同化的差异化神经干细胞的神经干细胞在Wnt3a/β-catenin路径中.

更多相关视频

Analysis of Retinoic Acid-induced Neural Differentiation of Mouse Embryonic Stem Cells in Two and Three-dimensional Embryoid Bodies

Analysis of Retinoic Acid-induced Neural Differentiation of Mouse Embryonic Stem Cells in Two and Three-dimensional Embryoid Bodies

Published on: April 22, 2017

Visualizing Axonal Growth Cone Collapse and Early Amyloid β Effects in Cultured Mouse Neurons

Visualizing Axonal Growth Cone Collapse and Early Amyloid β Effects in Cultured Mouse Neurons

Published on: October 30, 2018

相关概念视频

Neurogenesis and Regeneration of Nervous Tissue

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...