β-Catenin Upregulates the Constitutive and Virus-Induced Transcriptional Capacity of the Interferon Beta Promoter through T-Cell Factor Binding Sites. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Molecular and Cellular Biology Année : 2015

β-Catenin Upregulates the Constitutive and Virus-Induced Transcriptional Capacity of the Interferon Beta Promoter through T-Cell Factor Binding Sites.

Résumé

Rapid upregulation of interferon beta (IFN-β) expression following virus infection is essential to set up an efficient innate antiviral response. Biological roles related to the antiviral and immune response have also been associated with the constitutive production of IFN-β in naive cells. However, the mechanisms capable of modulating constitutive IFN-β expression in the absence of infection remain largely unknown. In this work, we demonstrate that inhibition of the kinase glycogen synthase kinase 3 (GSK-3) leads to the upregulation of the constitutive level of IFN-β expression in noninfected cells, provided that GSK-3 inhibition is correlated with the binding of β-catenin to the IFN-β promoter. Under these conditions, IFN-β expression occurred through the T-cell factor (TCF) binding sites present on the IFN-β promoter independently of interferon regulatory factor 3 (IRF3). Enhancement of the constitutive level of IFN-β per se was able to confer an efficient antiviral state to naive cells and acted in synergy with virus infection to stimulate virus-induced IFN-β expression. Further emphasizing the role of β-catenin in the innate antiviral response, we show here that highly pathogenic Rift Valley fever virus (RVFV) targets the Wnt/β-catenin pathway and the formation of active TCF/β-catenin complexes at the transcriptional and protein level in RVFV-infected cells and mice.
Fichier principal
Vignette du fichier
MCB00641-15R1_Merged_PDF.pdf (5.39 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

pasteur-01326511 , version 1 (03-06-2016)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Vasco Marcato, Lionel Luron, Lucie M Laqueuvre, Dominique Simon, Zeyni Mansuroglu, et al.. β-Catenin Upregulates the Constitutive and Virus-Induced Transcriptional Capacity of the Interferon Beta Promoter through T-Cell Factor Binding Sites.. Molecular and Cellular Biology, 2015, 36 (1), pp.13-29. ⟨10.1128/MCB.00641-15⟩. ⟨pasteur-01326511⟩
173 Consultations
184 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More