Sonic Hedgehog Signaling and Hippocampal Neuroplasticity.

Sonic Hedgehog Signaling and Hippocampal Neuroplasticity.
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DOI:
10.1016/j.tins.2016.10.001
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发表时间:
2016-12
影响因子:
15.9
通讯作者:
Mattson MP
Mattson MP
中科院分区:
医学1区
文献类型:
--
作者:
Yao PJ;Petralia RS;Mattson MP

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Sonic hedgehog(Shh)是一种分泌蛋白,在发育过程中控制神经祖细胞及其神经元和神经胶质后代的模式。新的研究结果表明,Shh在海马神经元回路的形成和可塑性中也起着重要作用,海马是学习和记忆中至关重要的大脑区域。Shh介导活动依赖性和损伤诱导的海马神经发生。海马神经元树突中Shh受体的激活参与跨神经元信号传导通路,该通路加速轴突生长并增强突触前末梢的谷氨酸释放。受损的Shh信号传导可能有助于影响海马的几种发育和成人发作的神经系统疾病的发病机制,这表明靶向Shh通路的治疗干预的潜力。
Sonic hedgehog (Shh) is a secreted protein that controls the patterning of neural progenitor cells, and their neuronal and glial progeny, during development. Emerging findings suggest that Shh also plays important roles in the formation and plasticity of neuronal circuits in the hippocampus, a brain region of fundamental importance in learning and memory. Shh mediates activity-dependent and injury-induced hippocampal neurogenesis. Activation of Shh receptors in the dendrites of hippocampal neurons engages a trans-neuronal signaling pathway that accelerates axon outgrowth and enhances glutamate release from presynaptic terminals. Impaired Shh signaling may contribute to the pathogenesis of several developmental and adult-onset neurological disorders that affect the hippocampus, suggesting a potential for therapeutic interventions that target Shh pathways.
DOI: 10.1046/j.1471-4159.2002.01267.x
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