Genetic dissection of synaptic specificity.

Genetic dissection of synaptic specificity.
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DOI:
10.1016/j.conb.2010.10.004
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发表时间:
2011-02
影响因子:
5.7
通讯作者:
Shen K
Shen K
中科院分区:
医学2区
文献类型:
--
作者:
Maeder CI;Shen K

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神经系统是由无数的神经元组成的,这些神经元由更多的突触连接在一起。虽然人们早就知道神经元在发育过程中会在许多可能的选择中专门选择它们的突触伙伴,但我们直到现在才开始了解它们是如何做出这些决定的。最近的发现已经开始阐明突触靶标选择的分子机制,包括来自突触伙伴、中间靶标和周围组织的积极和消极信号。此外,新出现的证据表明,突触连接不仅在特定的神经元集合之间形成,而且它们也针对特定的亚细胞域。最后,这些分子线索的空间和时间转录调控代表了一种额外的、多功能的机制来提供连接特异性。
Nervous systems are built of a myriad of neurons connected by an even larger number of synapses. While it has been long known that neurons specifically select their synaptic partners among many possible choices during development, we only begin to understand how they make those decisions. Recent findings have started to elucidate the molecular mechanisms underlying synaptic target selection including positive as well as negative cues from synaptic partners, intermediate targets and surrounding tissues. Furthermore, emerging evidence suggests that synaptic connections are not only formed among specific sets of neurons, but they are also targeted to specific subcellular domains. Finally, spatial and temporal transcriptional regulation of these molecular cues represents an additional, versatile mechanism to provide wiring specificity.
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