The role of AMPA receptors in postsynaptic mechanisms of synaptic plasticity.

The role of AMPA receptors in postsynaptic mechanisms of synaptic plasticity.
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DOI:
10.3389/fncel.2014.00401
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发表时间:
2014
影响因子:
5.3
通讯作者:
Goda Y
Goda Y
中科院分区:
医学2区
文献类型:
--
作者:
Chater TE;Goda Y

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在哺乳动物中枢神经系统中,兴奋性突触利用通过α-氨基-3-羟基-5-甲基-4-异恶唑丙酸受体(AMPAR)的离子流介导的神经传递。富含于树突棘上突触后膜的AMPAR是高度动态的,并且以活性依赖的方式穿梭于突触中。它们的数量、亚基组成、磷酸化状态和辅助蛋白的变化都可以调节AMPAR,从而改变突触强度并支持细胞形式的学习。此外,AMPAR可塑性的失调与各种病理状态有关,对心理健康有重要影响。在这里,我们专注于控制AMPAR可塑性的机制,特别是从海马突触的广泛研究,并强调在该领域的最新进展沿着考虑未来的发展方向。
In the mammalian central nervous system, excitatory glutamatergic synapses harness neurotransmission that is mediated by ion flow through α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs). AMPARs, which are enriched in the postsynaptic membrane on dendritic spines, are highly dynamic, and shuttle in and out of synapses in an activity-dependent manner. Changes in their number, subunit composition, phosphorylation state, and accessory proteins can all regulate AMPARs and thus modify synaptic strength and support cellular forms of learning. Furthermore, dysregulation of AMPAR plasticity has been implicated in various pathological states and has important consequences for mental health. Here we focus on the mechanisms that control AMPAR plasticity, drawing particularly from the extensive studies on hippocampal synapses, and highlight recent advances in the field along with considerations for future directions.
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