Article (Scientific journals)
MicroRNA-124 Regulates Cell Specification in the Cochlea through Modulation of Sfrp4/5.
Huyghe, Aurelia; Van Den Ackerveken, Priscilla; SACHELI, Rosalie et al.
2015In Cell Reports, 13, p. 31-42
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Abstract :
[en] The organ of Corti, the auditory organ of the mammalian inner ear, contains sensory hair cells and supporting cells that arise from a common sensory progenitor. The molecular bases allowing the specification of these progenitors remain elusive. In the present study, by combining microarray analyses with conditional deletion of Dicer in the developing inner ear, we identified that miR-124 controls cell fate in the developing organ of Corti. By targeting secreted frizzled-related protein 4 (Sfrp4) and Sfrp5, two inhibitors of the Wnt pathway, we showed that miR-124 controls the β-catenin-dependent and also the PCP-related non-canonical Wnt pathways that contribute to HC differentiation and polarization in the organ of Corti. Thus, our work emphasizes the importance of miR-124 as an epigenetic safeguard that fine-tunes the expression of genes critical for cell patterning during cochlear differentiation.
Disciplines :
Otolaryngology
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Huyghe, Aurelia 
Van Den Ackerveken, Priscilla  ;  Université de Liège > Département des sciences biomédicales et précliniques > Biochimie et physiologie générales, et biochimie humaine
SACHELI, Rosalie  ;  Centre Hospitalier Universitaire de Liège - CHU > Microbiologie clinique
Prevot, Pierre-Paul ;  Université de Liège > GIGA - Neurosciences
Thelen, Nicolas  ;  Université de Liège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Renauld, Justine ;  Université de Liège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Thiry, Marc  ;  Université de Liège > Département des sciences de la vie > GIGA-R : Biologie cellulaire
Delacroix, Laurence ;  Université de Liège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Nguyen, Laurent  ;  Université de Liège > GIGA - Neurosciences
Malgrange, Brigitte  ;  Université de Liège > GIGA - Neurosciences
 These authors have contributed equally to this work.
Language :
English
Title :
MicroRNA-124 Regulates Cell Specification in the Cochlea through Modulation of Sfrp4/5.
Publication date :
2015
Journal title :
Cell Reports
eISSN :
2211-1247
Publisher :
Elsevier
Volume :
13
Pages :
31-42
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 January 2016

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