在自闭症中,与Shank3相关的寡类细胞变化通过Erk通路的抑制恢复
Yuhua Ma1,2,3,4, Helen Friedericke Bauer1,2, Juergen Bockmann1
1Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany.
Molecular psychiatry
|November 7, 2025
概括
尚克3缺乏通过Wnt5a-Erk通路扰乱寡细胞成熟,从而损害大脑白质的发育. 针对这种途径为与Shank3相关的自闭症谱系障碍 (ASD) 提供了潜在的治疗策略.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 白质异常常见于与Shank3相关的自闭症谱系障碍 (ASD).
- 在Shank3-ASD中,导致寡腺细胞功能障碍和髓化缺陷的确切机制尚不清楚.
研究的目的:
- 为了研究Shank3在寡腺细胞发育和髓化中的作用.
- 阐明涉及Shank3缺乏引起的白质异常的分子通路.
- 探索与Shank3相关的ASD的潜在治疗点.
主要方法:
- 在Shank3缺陷模型中研究了寡基细胞前体细胞 (OPC) 增殖和成熟.
- 研究了Erk和Wnt信号通路的参与.
- 在体外和体内利用药理学Erk途径抑制.
- 进行了转录基因分析,以确定失调的信号通路.
- 用于Wnt5a,以评估其对寡细胞功能的影响.
主要成果:
- 尚克3缺乏促进了OPC的增殖,但损害了寡基细胞的成熟和髓化.
- 尚克3缺乏导致Erk通路过度激活,损害了寡细胞的成熟,并导致低髓化.
- 在Shank3缺乏的小鼠中,Erk通路的抑制恢复了寡细胞的成熟,挽救了髓化缺陷,并改善了行为结果.
- 尚克3缺陷导致Wnt信号失调,Wnt5a表达增加.
- Wnt5a治疗激活了Erk信号,并复制了髓化缺陷.
结论:
- 克3对于适当的寡腺细胞发育和髓化至关重要.
- Wnt5a-Erk信号轴是Shank3相关的ASD中寡干细胞功能障碍的关键调解者.
- 准Wnt5a-Erk通路为Shank3-ASD中白质缺陷提供了一个有希望的治疗途径.
相关概念视频
01:19Autism Spectrum Disorder
931
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
931
03:14Notch Signaling Pathway
6.4K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
6.4K