Article (Scientific journals)
p27(Kip1) Is a Microtubule-Associated Protein that Promotes Microtubule Polymerization during Neuron Migration.
Godin, Juliette; Thomas, Noemie; Laguesse, Sophie et al.
2012In Developmental Cell, 23 (4), p. 729-44
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Abstract :
[en] The migration of cortical interneurons is characterized by extensive morphological changes that result from successive cycles of nucleokinesis and neurite branching. Their molecular bases remain elusive, and the present work describes how p27(Kip1) controls cell-cycle-unrelated signaling pathways to regulate these morphological remodelings. Live imaging reveals that interneurons lacking p27(Kip1) show delayed tangential migration resulting from defects in both nucleokinesis and dynamic branching of the leading process. At the molecular level, p27(Kip1) is a microtubule-associated protein that promotes polymerization of microtubules in extending neurites, thereby contributing to tangential migration. Furthermore, we show that p27(Kip1) controls actomyosin contractions that drive both forward translocation of the nucleus and growth cone splitting. Thus, p27(Kip1) cell-autonomously controls nucleokinesis and neurite branching by regulating both actin and microtubule cytoskeletons.
Disciplines :
Neurology
Author, co-author :
Godin, Juliette  ;  Université de Liège - ULiège > Département des sciences cliniques > Neurologie
Thomas, Noemie 
Laguesse, Sophie   ;  Université de Liège - ULiège > Département des sciences cliniques > Neurologie
Malinouskaya, Lina
Close, Pierre  ;  Université de Liège - ULiège > Département de pharmacie > Chimie médicale
MALAISE, Olivier 
Purnelle, Audrey
Raineteau, Olivier
Campbell, Kenneth
Fero, Matthew
Moonen, Gustave  ;  Université de Liège - ULiège > Département des sciences cliniques > Département des sciences cliniques
Malgrange, Brigitte  ;  Université de Liège - ULiège > GIGA - Neurosciences
Chariot, Alain ;  Université de Liège - ULiège > Département de pharmacie > Chimie médicale
Metin, Christine
Besson, Arnaud
Nguyen, Laurent  ;  Université de Liège - ULiège > GIGA - Neurosciences
More authors (6 more) Less
 These authors have contributed equally to this work.
Language :
English
Title :
p27(Kip1) Is a Microtubule-Associated Protein that Promotes Microtubule Polymerization during Neuron Migration.
Publication date :
2012
Journal title :
Developmental Cell
ISSN :
1534-5807
Publisher :
Cell Press, United States
Volume :
23
Issue :
4
Pages :
729-44
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2012 Elsevier Inc. All rights reserved.
Available on ORBi :
since 26 November 2012

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