期刊
NEUROSCIENCE
卷 138, 期 2, 页码 447-456出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuroscience.2005.11.025
关键词
cytoskeleton; anatomy; synaptic plasticity; NMDA; actin; electron microscopy
资金
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS035527, R01NS039444] Funding Source: NIH RePORTER
- NINDS NIH HHS [NS-35527, NS-39444] Funding Source: Medline
Synaptic plasticity is associated with morphological changes in dendritic spines. The actin-based cytoskeleton plays a key role in regulating spine structure, and actin reorganization in spines is critical for the maintenance of long term potentiation. To test the hypothesis that a stable pool of F-actin rests in the spine core, while a dynamic pool lies peripherally in its shell, we performed immunoelectron microscopy in the stratum radiatum of rat hippocampus to elucidate the subcellular distribution of cofilin, an actin-depolymerizing protein that mediates reorganization of the actin cytoskeleton. We provide direct evidence that cofilin in spines avoids the core, and instead concentrates in the shell and within the postsynaptic density. These data suggest that cofilin may link synaptic plasticity to the actin remodeling that underlies changes in spine morphology. (c) 2005 IBRO. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据