Fiche publication
Date publication
juin 2021
Journal
Cell reports
Auteurs
Membres identifiés du Cancéropôle Est :
Pr FAIVRE Laurence
Tous les auteurs :
MacPherson MJ, Erickson SL, Kopp D, Wen P, Aghanoori MR, Kedia S, Burns KML, Vitobello A, Tran Mau-Them F, Thomas Q, Gold NB, Brucker W, Amlie-Wolf L, Gripp KW, Bodamer O, Faivre L, Muona M, Menzies L, Baptista J, Guegan K, Male A, Wei XC, He G, Long Q, Innes AM, Yang G
Lien Pubmed
Résumé
The development of the cerebral cortex requires balanced expansion and differentiation of neural stem/progenitor cells (NPCs), which rely on precise regulation of gene expression. Because NPCs often exhibit transcriptional priming of cell-fate-determination genes, the ultimate output of these genes for fate decisions must be carefully controlled in a timely fashion at the post-transcriptional level, but how that is achieved is poorly understood. Here, we report that de novo missense variants in an RNA-binding protein CELF2 cause human cortical malformations and perturb NPC fate decisions in mice by disrupting CELF2 nucleocytoplasmic transport. In self-renewing NPCs, CELF2 resides in the cytoplasm, where it represses mRNAs encoding cell fate regulators and neurodevelopmental disorder-related factors. The translocation of CELF2 into the nucleus releases mRNA for translation and thereby triggers NPC differentiation. Our results reveal that CELF2 translocation between subcellular compartments orchestrates mRNA at the translational level to instruct cell fates in cortical development.
Mots clés
CELF2, RNA-binding proteins, cell fate decision, cortical development, neural stem cells, neurodevelopmental disorder, neurogenesis, nucleocytoplasmic translocation, rare disease, translational repression
Référence
Cell Rep. 2021 Jun 8;35(10):109226
