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首页> 外文期刊>The European Journal of Neuroscience >Coronin 3 and its role in murine brain morphogenesis.
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Coronin 3 and its role in murine brain morphogenesis.

机译:Coronin 3及其在鼠脑形态发生中的作用。

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Abstract Coronins belong to the fundamental WD40-repeat proteins. They are mainly found at the submembraneous area, they bind F-actin in vitro, and most of the seven mammalian coronins have unclear roles. Coronin 3 is abundantly expressed in the adult CNS. All murine brain areas express coronin 3 during embryogenesis and the first postnatal stages. Expression in grey matter decreases postnatally, except for hippocampal pyramidal and dentate gyrus neurons, and cerebellar Purkinje cells, while levels in white matter increase in the course of myelination. Consistently, coronin 3 is abundant in differentiating neuro-2a and PC-12 cells and in primary oligodendrocytes. Treatment with PKC activator PMA reduced coronin 3 protein levels. To address its functions, neuro-2a and PC-12 cells were transfected with GFP-tagged coronin 3 versions. Full-length coronin 3 among other areas localized to outgrowing neurites, whereas truncated proteins efficiently suppressed neurite formation. Our results favour a role for coronin 3 in neuron morphogenesis and possibly migration.
机译:摘要Coronins属于基本的WD40重复蛋白。它们主要在膜下区域发现,它们在体外与F-肌动蛋白结合,并且七个哺乳动物冠状蛋白中的大多数具有不清楚的作用。 Coronin 3在成人CNS中大量表达。所有鼠脑区域在胚胎发生期间和出生后的最初阶段都表达冠蛋白3。除海马锥体和齿状回神经元以及小脑浦肯野细胞外,灰质的表达在出生后减少,而白质的水平在髓鞘化过程中增加。一致地,Coronin 3在分化神经2a和PC-12细胞以及原代少突胶质细胞中含量丰富。用PKC激活剂PMA处理可降低冠心病3蛋白水平。为了解决其功能,将神经元2a和PC-12细胞用GFP标记的coronin 3版本转染。全长coronin 3以及其他区域都位于向外生长的神经突,而截短的蛋白质可有效抑制神经突的形成。我们的研究结果支持Coronin 3在神经元形态发生和可能迁移中的作用。

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