Synaptic organizing complexes.

Synaptic organizing complexes.
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DOI:
10.1016/j.conb.2010.08.016
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发表时间:
2011-02
影响因子:
5.7
通讯作者:
Craig AM
Craig AM
中科院分区:
医学2区
文献类型:
--
作者:
Siddiqui TJ;Craig AM

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许多突触发生因子在被呈递到轴突或树突时诱导突触前或突触后分化。许多这样的因子参与双向跨突触粘附复合物。轴突神经毒素以同种型特异性密码与多个树突伴侣(神经配蛋白、LRRTM或Cbln-GluRδ)相互作用,轴突蛋白酪氨酸磷酸酶受体与树突NGL-3相互作用,使高亲和力蛋白-蛋白相互作用的局部网络成核,导致对齐的突触前和突触后分化。另外的分泌的靶源性因子如成纤维细胞生长因子和胶质源性因子如血小板反应蛋白结合特异性轴突或树突受体,刺激信号转导机制以促进突触发育的选择性方面。与经典的粘附分子和转录级联控制,这些突触粘附复合物和分泌的因子组织的分子组成,从而中央突触的功能特性。
A number of synaptogenic factors induce presynaptic or postsynaptic differentiation when presented to axons or dendrites. Many such factors participate in bidirectional trans-synaptic adhesion complexes. Axonal neurexins interacting in an isoform-specific code with multiple dendritic partners (neuroligins, LRRTMs, or Cbln-GluRδ), and axonal protein tyrosine phosphatase receptors interacting with dendritic NGL-3, nucleate local networks of high affinity protein-protein interactions leading to aligned presynaptic and postsynaptic differentiation. Additional secreted target-derived factors such as fibroblast growth factors and glial-derived factors such as thrombospondin bind specific axonal or dendritic receptors stimulating signal transduction mechanisms to promote selective aspects of synapse development. Together with classical adhesion molecules and controlled by transcriptional cascades, these synaptogenic adhesion complexes and secreted factors organize the molecular composition and thus functional properties of central synapses.
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