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Title: N-cadherin-dependent neuron-neuron interaction is required for the maintenance of activity-induced dendrite growth
Author: Tan, Zhu-Jun ; Peng, Yun ; Song, He-Ling ; Zheng, Jing-Jing ; Yu, Xiang
Source: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Issued Date: 2010
Volume: 107, Issue:21, Pages:9873-9878
Keyword: cell adhesion molecule ; catenin ; actin ; CELL-ADHESION ; BETA-CATENIN ; HIPPOCAMPAL-NEURONS ; NEURITE OUTGROWTH ; SYNAPSE FORMATION ; ALPHA-CATENIN ; PLASTICITY ; COMPLEX ; SYNAPTOGENESIS ; MORPHOGENESIS
Subject: Science & Technology - Other Topics
Corresponding Author: Yu, XA (reprint author), Chinese Acad Sci, Inst Neurosci, Shanghai 200031, Peoples R China,yuxiang@ion.ac.cn
English Abstract: Formation of neural circuits depends on stable contacts between neuronal processes, mediated by interaction of cell adhesion molecules, including N-cadherin. In the present study, we found that activity-dependent dendrite arborization specifically requires N-cadherin-mediated extracellular neuron-neuron interaction, because the enhancement did not occur for neurons cultured in isolation or plated on an astrocyte monolayer and was abolished by a recombinant soluble N-cadherin ectodomain. Furthermore, depolarization elevated the level of membrane-associated cadherin/catenin complexes and surface N-cadherin. Importantly, surface N-cadherin elevationis specifically required for the maintenance of nascent dendrite arbors. Through loss- and gain-of-function approaches, we showed that N-cadherin-mediated dendrite growth requires association of the cadherin/catenin complex with the actin cytoskeleton. In summary, these results identify a previously unexplored and specific function for activity-induced, N-cadherin-mediated neuron-neuron contacts in the maintenance of dendrite arbors.
Indexed Type: sci
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1591
Appears in Collections:神经所(总)_期刊论文
树突发育与神经环路形成研究组_期刊论文

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Tan, Zhu-Jun; Peng, Yun; Song, He-Ling; Zheng, Jing-Jing; Yu, Xiang.N-cadherin-dependent neuron-neuron interaction is required for the maintenance of activity-induced dendrite growth,PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2010,107(21):9873-9878
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