Authors

N. Yamashita; Y. Uchida; T. Ohshima; S. Hirai; F. Nakamura; M. Taniguchi; K. Mikoshiba; J. Honnorat; P. Kolattukudy; N. Thomasset; K. Takei; T. Takahashi;Y. Goshima

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Abbreviated Journal Title

J. Neurosci.

Keywords

CRMP; Reln; Dab1; tyrosine phosphorylation; neuronal migration; cerebral; cortex; DEVELOPING RAT-BRAIN; TYROSINE PHOSPHORYLATION; NERVOUS-SYSTEM; DISABLED; 1; FAMILY; GENE; MOUSE; ORGANIZATION; INVOLVEMENT; DISRUPTION; Neurosciences

Abstract

Collapsin response mediator protein 1 ( CRMP1) is one of the CRMP family members that mediates signal transduction of axon guidance molecules. Here, we show evidence that CRMP1 is involved in Reelin ( Reln) signaling to regulate neuronal migration in the cerebral cortex. In crmp1(-/-) mice, radial migration of cortical neurons was retarded. This phenotype was not observed in the sema3A(-/-) and crmp1(+/+); sema3A(+/+) cortices. However, CRMP1 was colocalized with disabled- 1 ( Dab1), an adaptor protein in Reln signaling. In the Reln(rl/rl) cortex, CRMP1 and Dab1 were expressed at a higher level, yet tyrosine phosphorylated at a lower level. Loss of crmp1 in a dab1 heterozygous background led to the disruption of hippocampal lamination, a Reeler- like phenotype. In addition to axon guidance, CRMP1 regulates neuronal migration by mediating Reln signaling.

Journal Title

Journal of Neuroscience

Volume

26

Issue/Number

51

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

13357

Last Page

13362

WOS Identifier

WOS:000242996300025

ISSN

0270-6474

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