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Arl13b in Primary Cilia Regulates the Migration and Placement of Interneurons in the Developing Cerebral Cortex

Overview
Journal Dev Cell
Publisher Cell Press
Date 2012 Nov 17
PMID 23153492
Citations 134
Authors
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Abstract

Coordinated migration and placement of interneurons and projection neurons lead to functional connectivity in the cerebral cortex; defective neuronal migration and the resultant connectivity changes underlie the cognitive defects in a spectrum of neurological disorders. Here we show that primary cilia play a guiding role in the migration and placement of postmitotic interneurons in the developing cerebral cortex and that this process requires the ciliary protein, Arl13b. Through live imaging of interneuronal cilia, we show that migrating interneurons display highly dynamic primary cilia and we correlate cilia dynamics with the interneuron's migratory state. We demonstrate that the guidance cue receptors essential for interneuronal migration localize to interneuronal primary cilia, but their concentration and dynamics are altered in the absence of Arl13b. Expression of Arl13b variants known to cause Joubert syndrome induce defective interneuronal migration, suggesting that defects in cilia-dependent interneuron migration may in part underlie the neurological defects in Joubert syndrome patients.

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References
1.
Besschetnova T, Kolpakova-Hart E, Guan Y, Zhou J, Olsen B, Shah J . Identification of signaling pathways regulating primary cilium length and flow-mediated adaptation. Curr Biol. 2010; 20(2):182-7. PMC: 2990526. DOI: 10.1016/j.cub.2009.11.072. View

2.
Garcia-Gonzalo F, Corbit K, Sirerol-Piquer M, Ramaswami G, Otto E, Noriega T . A transition zone complex regulates mammalian ciliogenesis and ciliary membrane composition. Nat Genet. 2011; 43(8):776-84. PMC: 3145011. DOI: 10.1038/ng.891. View

3.
Cantagrel V, Silhavy J, Bielas S, Swistun D, Marsh S, Bertrand J . Mutations in the cilia gene ARL13B lead to the classical form of Joubert syndrome. Am J Hum Genet. 2008; 83(2):170-9. PMC: 2495072. DOI: 10.1016/j.ajhg.2008.06.023. View

4.
Wu S, Goebbels S, Nakamura K, Nakamura K, Kometani K, Minato N . Pyramidal neurons of upper cortical layers generated by NEX-positive progenitor cells in the subventricular zone. Proc Natl Acad Sci U S A. 2005; 102(47):17172-7. PMC: 1288007. DOI: 10.1073/pnas.0508560102. View

5.
Manzini M, Walsh C . What disorders of cortical development tell us about the cortex: one plus one does not always make two. Curr Opin Genet Dev. 2011; 21(3):333-9. PMC: 3139684. DOI: 10.1016/j.gde.2011.01.006. View