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The Role of AMPARs Composition and Trafficking in Synaptic Plasticity and Diseases

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Abstract

AMPA receptors are tetrameric ionic glutamate receptors, which mediate 90% fast excitatory synaptic transmission induced by excitatory glutamate in the mammalian central nervous system through the activation or inactivation of ion channels. The alternation of synaptic AMPA receptor number and subtype is thought to be one of the primary mechanisms that involve in synaptic plasticity regulation and affect the functions in learning, memory, and cognition. The increasing of surface AMPARs enhances synaptic strength during long-term potentiation, whereas the decreasing of AMPARs weakens synaptic strength during the long-term depression. It is closely related to the AMPA receptor as well as its subunits assembly, trafficking, and degradation. The dysfunction of any step in these precise regulatory processes is likely to induce the disorder of synaptic transmission and loss of neurons, or even cause neuropsychiatric diseases ultimately. Therefore, it is useful to understand how AMPARs regulate synaptic plasticity and its role in related neuropsychiatric diseases via comprehending architecture and trafficking of the receptors. Here, we reviewed the progress in structure, expression, trafficking, and relationship with synaptic plasticity of AMPA receptor, especially in anxiety, depression, neurodegenerative disorders, and cerebral ischemia.

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Funding

This work was supported by the National Natural Science Foundation of China [Grant Numbers 81773924, 81730096]; the Drug Innovation Major Project [Grant Numbers 2018ZX09711001-002-007, 2018ZX09711001-003-005, 2018ZX09711001-009-013]; CAMS Innovation Fund for Medical Sciences (CIFMS) [Grant Number 2016-I2M-1-004].

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Correspondence to Nai-Hong Chen.

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Wu, QL., Gao, Y., Li, JT. et al. The Role of AMPARs Composition and Trafficking in Synaptic Plasticity and Diseases. Cell Mol Neurobiol 42, 2489–2504 (2022). https://doi.org/10.1007/s10571-021-01141-z

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  • DOI: https://doi.org/10.1007/s10571-021-01141-z

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