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首页> 外文期刊>Neuron >Chemorepulsion of neuronal migration by Slit2 in the developing mammalian forebrain.
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Chemorepulsion of neuronal migration by Slit2 in the developing mammalian forebrain.

机译:Slit2在发育中的哺乳动物前脑中对神经元迁移的化学脉冲作用。

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摘要

Newborn cerebral cortical neurons migrate along radial glia to the cortical plate. Experiments using a collagen gel assay revealed that the choroid plexus repelled cerebral cortical neurons and olfactory interneuron precursors, which were mimicked by Neuro-2A cells. Fractionation of Neuro-2A-conditioned medium identified a protein of 190 kDa, equivalent to full-length Slit proteins. Indeed, it cross-reacted with an antibody against Slit2, suggesting that it is either Slit2 or another Slit protein. Further, Slit2, expressed in COS cells, repelled cerebral cortical neurons and olfactory interneuron precursors. Thus, Slit2, which is expressed by the choroid plexus and the septum, acts as a chemorepulsive factor for neuronal migration. These results suggest chemorepulsion as a guidance mechanism for neuronal migration in the developing forebrain.
机译:新生的大脑皮层神经元沿着放射状神经胶质迁移到皮层板。使用胶原蛋白凝胶实验的实验表明,脉络丛可排斥被Neuro-2A细胞模拟的大脑皮层神经元和嗅觉中神经元前体。分离Neuro-2A条件培养基可鉴定出190 kDa的蛋白质,相当于全长Slit蛋白质。实际上,它与针对Slit2的抗体发生了交叉反应,表明它是Slit2或其他Slit蛋白。此外,在COS细胞中表达的Slit2排斥了大脑皮层神经元和嗅觉中神经元前体。因此,由脉络丛和隔膜表达的Slit2充当神经元迁移的化学驱动因子。这些结果表明化学脉冲作为发展中的前脑神经元迁移的指导机制。

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