Channelopathies in fragile X syndrome.

Channelopathies in fragile X syndrome.
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DOI:
10.1038/s41583-021-00445-9
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发表时间:
2021-05
期刊:
Nature reviews. Neuroscience
影响因子:
--
通讯作者:
Klyachko VA
Klyachko VA
中科院分区:
其他
文献类型:
--
作者:
Deng PY;Klyachko VA

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脆性X综合征(FXS)是智力残疾的最常见遗传形式,也是自闭症的主要单基因原因。这种情况源于脆性X智力低下蛋白(FMRP)的丢失,该蛋白通过翻译控制,蛋白质-蛋白质相互作用和第二信使途径调节广泛的离子通道。迅速增加的证据表明,FMRP的丧失导致许多离子通道功能障碍,即,通道病,这反过来又显著有助于FXS病理生理学。与此一致,靶向失调离子通道的药理学或遗传干预有效地恢复FXS动物模型中的神经元兴奋性、突触功能和行为表型。最近的研究进一步支持了直接和快速的FMRP通道相互作用在调节离子通道功能中的作用。本文综述了目前该领域关于通道病和FXS发病机制的知识现状,包括有前途的治疗意义。
Fragile X syndrome (FXS) is the most common inherited form of intellectual disability and the leading monogenic cause of autism. The condition stems from loss of fragile X mental retardation protein (FMRP), which regulates a wide range of ion channels via translational control, protein-protein interactions, and second messenger pathways. Rapidly increasing evidence demonstrates that loss of FMRP leads to numerous ion channel dysfunctions, i.e., channelopathies, which in turn contribute significantly to FXS pathophysiology. Consistent with this, pharmacological or genetic interventions that target dysregulated ion channels effectively restore neuronal excitability, synaptic function, and behavioral phenotypes in FXS animal models. Recent studies further support a role for direct and rapid FMRP-channel interactions in regulating ion channel function. This review lays out the current state of knowledge in the field regarding channelopathies and the pathogenesis of FXS, including promising therapeutic implications.
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