The hepatocyte insulin receptor is required to program the liver clock and rhythmic gene expression.
Détails
Télécharger: Fougeray 2022 .pdf (2798.28 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_AC77AB13666C
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The hepatocyte insulin receptor is required to program the liver clock and rhythmic gene expression.
Périodique
Cell reports
ISSN
2211-1247 (Electronic)
Statut éditorial
Publié
Date de publication
12/04/2022
Peer-reviewed
Oui
Volume
39
Numéro
2
Pages
110674
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Publication Status: ppublish
Résumé
Liver physiology is circadian and sensitive to feeding and insulin. Food intake regulates insulin secretion and is a dominant signal for the liver clock. However, how much insulin contributes to the effect of feeding on the liver clock and rhythmic gene expression remains to be investigated. Insulin action partly depends on changes in insulin receptor (IR)-dependent gene expression. Here, we use hepatocyte-restricted gene deletion of IR to evaluate its role in the regulation and oscillation of gene expression as well as in the programming of the circadian clock in the adult mouse liver. We find that, in the absence of IR, the rhythmicity of core-clock gene expression is altered in response to day-restricted feeding. This change in core-clock gene expression is associated with defective reprogramming of liver gene expression. Our data show that an intact hepatocyte insulin receptor is required to program the liver clock and associated rhythmic gene expression.
Mots-clé
ARNTL Transcription Factors/genetics, ARNTL Transcription Factors/metabolism, Animals, CLOCK Proteins/genetics, CLOCK Proteins/metabolism, Circadian Clocks/genetics, Circadian Rhythm/genetics, Gene Expression, Gene Expression Regulation, Hepatocytes/metabolism, Insulin/metabolism, Liver/metabolism, Mice, Receptor, Insulin/genetics, Receptor, Insulin/metabolism, CLOCK, CP: Metabolism, CP: Molecular biology, circadian, hepatocyte, insulin, insulin receptor, liver, metabolism
Pubmed
Web of science
Open Access
Oui
Création de la notice
26/04/2022 13:03
Dernière modification de la notice
26/07/2023 6:14