β1-Class integrins regulate the development of laminae and folia in the 
cerebral and cerebellar cortex

Graus-Porta, D.; Blaess, S.; Senften, M.; Littlewood-Evans, A.; Damsky, C.; Huang, Zhen; Orban, P.; Klein, Rüdiger; Schittny, J. C.; Muller, U.

doi:10.1016/s0896-6273(01)00374-9

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β1-Class integrins regulate the development of laminae and folia in the cerebral and cerebellar cortex

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Graus-Porta, D., Blaess, S., Senften, M., Littlewood-Evans, A., Damsky, C., Huang, Z., et al. (2001). β1-Class integrins regulate the development of laminae and folia in the cerebral and cerebellar cortex. Neuron, 31(3), 367-379. doi:10.1016/s0896-6273(01)00374-9.

Cite as: https://hdl.handle.net/21.11116/0000-0009-BE06-B

Abstract

Mice that lack all beta1-class integrins in neurons and glia die prematurely after birth with severe brain malformations. Cortical hemispheres and cerebellar folia fuse, and cortical laminae are perturbed. These defects result from disorganization of the cortical marginal zone, where beta1-class integrins regulate glial endfeet anchorage, meningeal basement membrane remodeling, and formation of the Cajal-Retzius cell layer. Surprisingly, beta1-class integrins are not essential for neuron-glia interactions and neuronal migration during corticogenesis. The phenotype of the beta1-deficient mice resembles pathological changes observed in human cortical dysplasias, suggesting that defective integrin-mediated signal transduction contributes to the development of some of these diseases.