期刊
MOLECULAR AND CELLULAR NEUROSCIENCE
卷 46, 期 1, 页码 1-8出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.mcn.2010.08.014
关键词
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The amount of AMPARs at synapses is not a fixed number but varies according to different factors including synaptic development, activity and disease. Because the number of AMPARs sets the strength of synaptic transmission, their trafficking is subject to fine and tight regulation. In this review, we will describe the different steps taken by AMPARs in order to reach the synapse. We propose a three-step mechanism involving exocytosis at extra/perisynaptic sites, lateral diffusion to synapses and a subsequent rate-limiting diffusional trapping step. We will describe how the different trafficking steps are regulated during synaptic plasticity or altered during neurodegenerative diseases such as Alzheimer's. (C) 2010 Elsevier Inc. All rights reserved.
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