Role of neuritin in retinal ganglion cell death in adult mice following optic nerve injury.

Role of neuritin in retinal ganglion cell death in adult mice following optic nerve injury.
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DOI:
10.1038/s41598-018-28425-7
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发表时间:
2018-07-04
期刊:
影响因子:
4.6
通讯作者:
Harada T
Harada T
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Azuchi Y;Namekata K;Shimada T;Guo X;Kimura A;Harada C;Saito A;Yamagata K;Harada T

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神经素是一种小的细胞外蛋白,在神经发育、突触可塑性和神经细胞存活过程中发挥重要作用。本文研究了神经素在视神经损伤小鼠模型中的作用。ONI诱导WT小鼠视网膜神经素mRNA表达上调。神经素敲除(KO)小鼠的视网膜结构和视网膜神经节细胞(RGCs)数量均正常。体内视网膜成像和组织病理学分析表明,神经素KO小鼠ONI后的RGC死亡和视网膜内变性更为严重。免疫印迹分析显示,oni诱导的Akt和ERK磷酸化在neuritin KO小鼠中被抑制。我们的研究结果表明,神经素在ONI后具有神经保护作用,可能有助于治疗创伤后并发症。
Neuritin is a small extracellular protein that plays important roles in the process of neural development, synaptic plasticity, and neural cell survival. Here we investigated the function of neuritin in a mouse model of optic nerve injury (ONI). ONI induced upregulation of neuritin mRNA in the retina of WT mice. The retinal structure and the number of retinal ganglion cells (RGCs) were normal in adult neuritin knockout (KO) mice. In vivo retinal imaging and histopathological analyses demonstrated that RGC death and inner retinal degeneration following ONI were more severe in neuritin KO mice. Immunoblot analyses revealed that ONI-induced phosphorylation of Akt and ERK were suppressed in neuritin KO mice. Our findings suggest that neuritin has neuroprotective effects following ONI and may be useful for treatment of posttraumatic complication.
DOI: 10.1155/2017/2817252
发表时间: 2017
影响因子: --
作者:
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通讯作者: Harada T
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发表时间: 2016-09-20
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