Reelin inhibits migration of sympathetic preganglionic neurons in the spinal cord of the chick

Reelin inhibits migration of sympathetic preganglionic neurons in the spinal cord of the chick
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Reelin 抑制雏鸡脊髓中交感神经节前神经元的迁移

DOI:
10.1002/cne.22616
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发表时间:
2011
期刊:
影响因子:
2.5
通讯作者:
Yip JW
Yip JW
中科院分区:
医学3区
文献类型:
--
作者:
Yip YP;Zhou G;Kubo K;Nakajima K;Yip JW

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本研究观察了Reelin对鸡脊髓交感节前神经元(SPN)迁移的影响。鸡的SPN首先从神经上皮迁移到脊髓腹外侧。然后,它们进行二次迁移,聚集在中央管附近,形成特尔尼柱(CT)。在二次迁移过程中,大量的Reelin被发现在腹侧脊髓的大面积;唯一缺乏Reelin的区域是由SPN或躯体运动神经元占据的区域以及SPN迁移的沿着路径。通过电穿孔全长Reelin DNA在SPN途径中的Reelin异位表达阻止了SPN向其目的地的迁移。Reelin表达的时空模式,沿着外源性Reelin对SPN迁移的抑制,表明Reelin在脊髓的正常发育过程中起着SPN迁移的屏障的作用。J. Comp.神经元519:1970-1978,2011.© 2011 Wiley‐利斯公司
The present study examined the effects of Reelin in the migration of sympathetic preganglionic neurons (SPN) in the spinal cord of the chick. SPN in the chick first migrate from the neuroepithelium to the ventrolateral spinal cord. They then undergo a secondary migration to cluster adjacent to the central canal, forming the column of Terni (CT). During secondary migration, abundant Reelin is found in large areas of the ventral spinal cord; the only areas devoid of Reelin are areas occupied by SPN or somatic motor neurons and the pathway along which SPN migrate. Ectopic expression of Reelin in the pathway of SPN through electroporation of full‐length Reelin DNA stopped SPN migration toward their destination. The spatiotemporal pattern of Reelin expression, along with the inhibition of SPN migration by exogenous Reelin, suggests that Reelin functions as a barrier to SPN migration during normal development of the spinal cord. J. Comp. Neurol. 519:1970–1978, 2011. © 2011 Wiley‐Liss, Inc.
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