Axon guidance at the midline: of mice and flies.

Axon guidance at the midline: of mice and flies.
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DOI:
10.1016/j.conb.2009.12.006
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发表时间:
2010-02
影响因子:
5.7
通讯作者:
Bashaw, Greg J.
Bashaw, Greg J.
中科院分区:
医学2区
文献类型:
--
作者:
Evans, Timothy A.;Bashaw, Greg J.

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在两侧对称的生物体中,中线是发育中的中枢神经系统的关键组织中心。在脊椎动物和无脊椎动物的神经系统中,控制轴突中线路径的分子和机制有着惊人的保守性。中枢神经系统中的大多数轴突在投射到对侧突触靶点之前穿过中线,这种交叉决定受到精细的空间和时间调节。生长的连合轴突最初对吸引的信号做出反应,而抑制对排斥信号的反应。一旦穿过,排斥力占主导地位,允许轴突离开并阻止它们重新进入中线。在这里,我们回顾了苍蝇和小鼠的最新进展,阐明了在中线建立精确连接的分子机制。
In bilaterally symmetric organisms, the midline is a critical organizing center for the developing central nervous system. There is a striking conservation of the molecules and mechanisms that control axon path finding at the midline in vertebrate and invertebrate nervous systems. The majority of axons in the CNS cross the midline before projecting to their contralateral synaptic targets and this crossing decision is under exquisite spatial and temporal regulation. Growing commissural axons initially respond to attractive signals, while inhibiting responses to repulsive signals. Once across, repulsion dominates, allowing axons to leave and preventing them from re-entering the midline. Here we review recent advances in flies and mice that illuminate the molecular mechanisms underlying the establishment of precise connectivity at the midline.
DOI: 10.1371/journal.pone.0003798
发表时间: 2008
期刊: PloS one
影响因子: 3.7
作者:
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通讯作者: Gilestro GF
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