Functions of axon guidance molecules in synapse formation.

Functions of axon guidance molecules in synapse formation.
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DOI:
10.1016/j.conb.2009.09.005
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发表时间:
2009-10
影响因子:
5.7
通讯作者:
Cheng HJ
Cheng HJ
中科院分区:
医学2区
文献类型:
--
作者:
Chen SY;Cheng HJ

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轴突引导和突触形成是建立功能性神经元回路的重要发育事件。这两个相关的细胞过程以协调的方式发生,但以前对多个模型生物体的研究似乎表明,轴突引导和突触形成是由不同的分子线索介导的。因此,轴突导向分子负责将轴突导向其靶区域,而其他粘附或配体-受体分子指定靶区域内的突触形成。然而,越来越多的证据表明,轴突导向分子可以调节突触形成过程中突触前和突触后成分的定位和形成。这些结果证明了轴突导向分子在突触形成中的作用,并提供了轴突导向和突触形成如何在分子水平上协调的见解。
Axon guidance and synapse formation are important developmental events for establishing a functional neuronal circuitry. These two related cellular processes occur in a coordinated fashion but previous studies from multiple model organisms seemed to suggest that axon guidance and synapse formation are mediated by distinct molecular cues. Thus, axon guidance molecules are responsible for guiding the navigating axon toward its target area, while other adhesion or ligand-receptor molecules specify the synapse formation within the target area. However, accumulative evidence has shown that axon guidance molecules can regulate the localization and formation of pre- and post-synaptic components during synapse formation. These results demonstrate a role for axon guidance molecules in synapse formation and provide insight into how axon guidance and synapse formation are coordinated at the molecular level.
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