DYRK1A controls the transition from proliferation to quiescence during lymphoid development by destabilizing Cyclin D3

Autor: Lindsay R. Stolzenburg, Bertrand Leblond, Sébastien Malinge, Laurent Desire, Thierry Besson, John D. Crispino, Lauren Diebold, Daniel E. Cook, Casagrande Anne-Sophie, Benjamin J. Thompson, Rahul S. Bhansali
Přispěvatelé: Northwestern University [Evanston], Diaxonhit, Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Gustave Roussy (IGR)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Journal of Experimental Medicine
Journal of Experimental Medicine, Rockefeller University Press, 2015, 212 (6), pp.723-740. ⟨10.1084/jem.20150002⟩
The Journal of Experimental Medicine
ISSN: 0022-1007
1540-9538
DOI: 10.1084/jem.20150002⟩
Popis: Thompson et al. identify the dual specificity tyrosine-regulated kinase 1A (DYRK1A) as a new player in the control of lymphopoiesis. Loss of DYRK1A in mice results in Cyclin D3 stabilization and failure to repress E2F target genes, thus impairing cell cycle exit and proper pre–B and pre–T cell differentiation.
Pre–B and pre–T lymphocytes must orchestrate a transition from a highly proliferative state to a quiescent one during development. Cyclin D3 is essential for these cells’ proliferation, but little is known about its posttranslational regulation at this stage. Here, we show that the dual specificity tyrosine-regulated kinase 1A (DYRK1A) restrains Cyclin D3 protein levels by phosphorylating T283 to induce its degradation. Loss of DYRK1A activity, via genetic inactivation or pharmacologic inhibition in mice, caused accumulation of Cyclin D3 protein, incomplete repression of E2F-mediated gene transcription, and failure to properly couple cell cycle exit with differentiation. Expression of a nonphosphorylatable Cyclin D3 T283A mutant recapitulated these defects, whereas inhibition of Cyclin D:CDK4/6 mitigated the effects of DYRK1A inhibition or loss. These data uncover a previously unknown role for DYRK1A in lymphopoiesis, and demonstrate how Cyclin D3 protein stability is negatively regulated during exit from the proliferative phases of B and T cell development.
Databáze: OpenAIRE