哺乳动物神经发育中的清原体和清原代谢:一篇综述
Seiya Yamada1,2, Tomoya Mizukoshi1, Ayaka Sato1
1Laboratory for Molecular Neurobiology, Faculty of Human Sciences, Waseda University, Saitama, Japan.
Acta histochemica et cytochemica
|July 11, 2024
概括
纯素代谢由纯素体调节,对神经发育至关重要. 一种名为Nwd1的蛋白质对于纯酶体的形成至关重要,影响神经干细胞功能和大脑发育.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 生物化学 生物化学
背景情况:
- 神经干细胞/原生细胞 (NSPCs) 在发育过程中需要精确的代谢物调节.
- 纯氨酸对于DNA,RNA和能量 (ATP,GTP) 是必不可少的,对于大脑发育至关重要.
- purin 合成通过 de novo 和 salvage 途径发生,酶形成了 purin 酶复合体.
研究的目的:
- 审查纯素代谢和纯素体作为神经发育的调节者.
- 探索 NACHT 和 WD 重复域含有 1 (Nwd1) 在纯酶体形成和神经发育中的作用.
- 要突出蛋白质-蛋白质相互作用在纯酶组合中的重要性.
主要方法:
- 审查关于纯素代谢,纯素体和神经发育的现有文献.
- 讨论小鼠早期皮质发育期间 (大约P0) purin合成途径的过渡.
- 探索抑制de novo途径对mTORC1途径和前脑发育的影响.
主要成果:
- 在小鼠中,纯氨酸合成从de novo转移到产后0天左右的救援途径.
- 抑制de novo路径会破坏mTORC1路径,导致前脑形.
- 减少Nwd1的表达会损害纯酶体的形成,影响NSPC的增殖,神经元迁移,并导致周周异构.
结论:
- purinosomes 作为神经发育的时空调节者.
- 通过与PAICS等酶的相互作用,Nwd1对于纯酶体的形成至关重要.
- 对Nwd1的失调和纯酶体的形成有助于神经发育障碍,如周周结核异构.
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