Regenerative neurogenesis: the integration of developmental, physiological and immune signals.

Regenerative neurogenesis: the integration of developmental, physiological and immune signals.
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DOI:
10.1242/dev.199907
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发表时间:
2022-04-15
期刊:
Development (Cambridge, England)
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其他
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在鱼类和蝾螈中,但在哺乳动物中,神经干细胞在受伤后会恢复神经发生。受损细胞的存在以及免疫细胞和其他细胞的涌入会强烈改变神经干细胞的信号传导环境。在这里,我们总结了我们最近扩展的关于发育、生理和免疫信号的知识,这些信号作用于斑马鱼中枢神经系统中的神经干细胞,直接或间接影响其神经源状态。这些信号作用于多个细胞内途径,导致染色质可及性和基因表达的变化,最终导致再生神经发生。非再生哺乳动物的转化方法表明,中枢神经系统干细胞可以重新编程以进行神经发生。了解自然再生物种的信号机制表明了通过实验促进哺乳动物神经发生的途径。摘要:这篇综述总结了影响斑马鱼中枢神经系统再生神经发生的一系列信号,表明在非再生哺乳动物中激活类似信号通路的可能途径。
In fishes and salamanders, but not mammals, neural stem cells switch back to neurogenesis after injury. The signalling environment of neural stem cells is strongly altered by the presence of damaged cells and an influx of immune, as well as other, cells. Here, we summarise our recently expanded knowledge of developmental, physiological and immune signals that act on neural stem cells in the zebrafish central nervous system to directly, or indirectly, influence their neurogenic state. These signals act on several intracellular pathways, which leads to changes in chromatin accessibility and gene expression, ultimately resulting in regenerative neurogenesis. Translational approaches in non-regenerating mammals indicate that central nervous system stem cells can be reprogrammed for neurogenesis. Understanding signalling mechanisms in naturally regenerating species show the path to experimentally promoting neurogenesis in mammals. Summary: This Review summarises the array of signals that influence regenerative neurogenesis in the central nervous system of zebrafish, indicating possible avenues for activation of similar signalling pathways in non-regenerating mammals.
血清素促进斑马鱼脊髓运动神经元的发育和再生。
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