Reelin regulates cadherin function via Dab1/Rap1 to control neuronal migration and lamination in the neocortex.

Reelin regulates cadherin function via Dab1/Rap1 to control neuronal migration and lamination in the neocortex.
复制标题

DOI:
10.1016/j.neuron.2011.01.003
复制
发表时间:
2011-02-10
期刊:
影响因子:
16.2
通讯作者:
Müller U
Müller U
中科院分区:
医学1区
文献类型:
--
作者:
Franco SJ;Martinez-Garay I;Gil-Sanz C;Harkins-Perry SR;Müller U

文献摘要

参考文献

被引文献

相似文献

神经元迁移对于新皮质细胞层的建立至关重要,迁移缺陷可导致神经和精神疾病。近期研究表明,放射状迁移的新皮质神经元采用依赖神经胶质和不依赖神经胶质的迁移模式,但控制不同迁移模式以及它们之间转换的信号通路尚不明确。在此,我们发现Dab1(一种reelin通路的关键成分)是放射状迁移神经元进行不依赖神经胶质的胞体移位所必需的,但对于神经胶质引导的移动则不是必需的。在迁移过程中,Dab1在移位神经元中以依赖Rap1的方式稳定其前沿突起。反过来,Rap1控制钙黏蛋白的功能以调节胞体移位。此外,胞体移位中细胞自主性的神经元缺陷足以导致严重的新皮质分层缺陷。因此,我们明确了放射状迁移过程中reelin功能的细胞机制,阐明了胞体移位过程中Dab1下游的分子通路,并确定了不依赖神经胶质的运动性在新皮质发育中的重要性。
Neuronal migration is critical for establishing neocortical cell layers and migration defects can cause neurological and psychiatric diseases. Recent studies show that radially migrating neocortical neurons use glia-dependent and glia-independent modes of migration, but the signaling pathways that control different migration modes and the transitions between them are poorly defined. Here, we show that Dab1, an essential component of the reelin pathway, is required in radially migrating neurons for glia-independent somal translocation, but not for glia-guided locomotion. During migration, Dab1 acts in translocating neurons to stabilize their leading processes in a Rap1-dependent manner. Rap1, in turn, controls cadherin function to regulate somal translocation. Furthermore, cell-autonomous neuronal deficits in somal translocation are sufficient to cause severe neocortical lamination defects. Thus, we define the cellular mechanism of reelin function during radial migration, elucidate the molecular pathway downstream of Dab1 during somal translocation, and establish the importance of glia-independent motility in neocortical development.
DOI: 10.1038/ng1257
发表时间: 2003-11-01
期刊: NATURE GENETICS
影响因子: 30.8
作者:
Assadi, AH;Zhang, GC;Clark, GD
通讯作者: Clark, GD
DOI: 10.1523/jneurosci.17-01-00023.1997
发表时间: 1997-01-01
影响因子: 5.3
作者:
DArcangelo, G;Nakajima, K;Curran, T
通讯作者: Curran, T
DOI: 10.1016/s0896-6273(00)00007-6
发表时间: 2000-07-01
期刊: NEURON
影响因子: 16.2
作者:
Dulabon, L;Olson, EC;Anton, ES
通讯作者: Anton, ES
DOI: 10.1038/nn1153
发表时间: 2003-12-01
影响因子: 25
作者:
Bai, JL;Ramos, RL;LoTurco, JJ
通讯作者: LoTurco, JJ
DOI: 10.1242/dev.00654
发表时间: 2003-10-01
期刊: DEVELOPMENT
影响因子: 4.6
作者:
Hartfuss, E;Förster, E;Götz, M
通讯作者: Götz, M