Necl-4/SynCAM-4 is expressed in myelinating oligodendrocytes but not required for axonal myelination.

Necl-4/SynCAM-4 is expressed in myelinating oligodendrocytes but not required for axonal myelination.
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Necl-4/SynCAM-4 在髓鞘少突胶质细胞中表达,但不是轴突髓鞘形成所必需的

DOI:
10.1371/journal.pone.0064264
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Qiu M
Qiu M
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhu Y;Li H;Li K;Zhao X;An T;Hu X;Park J;Huang H;Bin Y;Qiang B;Yuan J;Peng X;Qiu M

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轴突髓鞘形成的时间和进程是由发育中神经元和胶质细胞之间的细胞间相互作用精确控制的。先前的体外研究表明,Nectin like 4(Necl-4,也称为细胞粘附分子Cadm-4或SynCAM-4)在外周神经系统(PNS)中的许旺细胞的轴突髓鞘形成中起重要作用。然而,Necl-4蛋白在发育中的中枢神经系统(CNS)中轴突髓鞘形成中的作用仍然未知。在这项研究中,我们发现在围产期阶段,当轴突经历活跃的髓鞘形成时,成熟的少突胶质细胞中Necl-4的表达上调。我们产生了Necl-4基因敲除小鼠,但发现Necl-4基因的破坏并不影响CNS中少突胶质细胞的分化和髓鞘形成。令人惊讶的是,Necl-4的破坏对PNS中的轴突髓鞘形成也没有显著影响。因此,我们的结果表明,Necl-4是轴突髓鞘形成发育中的神经系统。
The timing and progression of axonal myelination are precisely controlled by intercellular interactions between neurons and glia in development. Previous in vitro studies demonstrated that Nectin like 4 (Necl-4, also known as cell adhesion molecule Cadm-4 or SynCAM-4) plays an essential role in axonal myelination by Schwann cells in the peripheral nervous system (PNS). However, the role of Necl-4 protein in axonal myelination in the developing central nervous system (CNS) has remained unknown. In this study, we discovered upregulation of Necl-4 expression in mature oligodendrocytes at perinatal stages when axons undergo active myelination. We generated Necl4 gene knockout mice, but found that disruption of Necl-4 gene did not affect oligodendrocyte differentiation and myelin formation in the CNS. Surprisingly, disruption of Necl-4 had no significant effect on axonal myelination in the PNS either. Therefore, our results demonstrated that Necl-4 is dispensable for axonal myelination in the developing nervous system.
DOI: 10.1523/jneurosci.2665-08.2008
发表时间: 2008-11-26
期刊: The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子: --
作者:
Park J;Liu B;Chen T;Li H;Hu X;Gao J;Zhu Y;Zhu Q;Qiang B;Yuan J;Peng X;Qiu M
通讯作者: Qiu M
DOI: 10.1016/s0896-6273(00)80897-1
发表时间: 2000-02-01
期刊: NEURON
影响因子: 16.2
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通讯作者: Rowitch, DH
DOI: 10.1523/jneurosci.2739-07.2007
发表时间: 2007-11-14
影响因子: 5.3
作者:
Fogel, Adam I.;Akins, Michael R.;Biederer, Thomas
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Nectin 样分子 1 是一种蛋白质 4.1N 相关蛋白,可将蛋白质 4.1N 从细胞质募集到质膜。
DOI: 10.1016/j.bbamem.2005.01.013
发表时间: 2005-05-20
影响因子: 3.4
作者:
Zhou, Y;Du, GW;Yuan, JG
通讯作者: Yuan, JG
DOI: 10.1074/jbc.m305387200
发表时间: 2003-09-12
影响因子: 4.8
作者:
Shingai, T;Ikeda, W;Takai, Y
通讯作者: Takai, Y