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首页> 外文期刊>The Journal of Neuroscience: The Official Journal of the Society for Neuroscience >NF-protocadherin and TAF1 regulate retinal axon initiation and elongation in vivo.
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NF-protocadherin and TAF1 regulate retinal axon initiation and elongation in vivo.

机译:NF-procadadherin和TAF1在体内调节视网膜轴突的起始和延伸。

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摘要

NF-protocadherin (NFPC)-mediated cell-cell adhesion plays a critical role in vertebrate neural tube formation. NFPC is also expressed during the period of axon tract formation, but little is known about its function in axonogenesis. Here we have tested the role of NFPC and its cytosolic cofactor template-activating factor 1 (TAF1) in the emergence of the Xenopus retinotectal projection. NFPC is expressed in the developing retina and optic pathway and is abundant in growing retinal axons. Inhibition of NFPC function in developing retinal ganglion cells (RGCs) severely reduces axon initiation and elongation and suppresses dendrite genesis. Furthermore, an identical phenotype occurs when TAF1 function is blocked. These data provide evidence that NFPC regulates axon initiation and elongation and indicate a conserved role for TAF1, a transcriptional regulator, as a downstream cytosolic effector of NFPC in RGCs.
机译:NF-procadcadherin(NFPC)介导的细胞间粘附在脊椎动物神经管形成中起关键作用。 NFPC在轴突道形成期间也表达,但对其轴突生成的功能知之甚少。在这里,我们测试了NFPC及其胞质辅因子模板激活因子1(TAF1)在非洲爪蟾视网膜反射投射中的作用。 NFPC在发育中的视网膜和视神经通路中表达,在视网膜轴突生长中含量丰富。发育中的视网膜神经节细胞(RGCs)中NFPC功能的抑制会严重减少轴突的起始和伸长并抑制枝晶的发生。此外,当TAF1功能被阻断时,会出现相同的表型。这些数据提供了NFPC调节轴突起始和伸长的证据,并表明TAF1作为转录调节剂在RGC中作为NFPC的下游胞质效应子发挥了保守作用。

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