TY - JOUR
T1 - Insulin/IGF-1 Drives PERIOD Synthesis to Entrain Circadian Rhythms with Feeding Time
AU - Crosby, Priya
AU - Hamnett, Ryan
AU - Putker, Marrit
AU - Hoyle, Nathaniel P
AU - Reed, Martin
AU - Karam, Carolyn J
AU - Maywood, Elizabeth S
AU - Stangherlin, Alessandra
AU - Chesham, Johanna E
AU - Hayter, Edward A
AU - Rosenbrier-Ribeiro, Lyn
AU - Newham, Peter
AU - Clevers, Hans
AU - Bechtold, David A
AU - O'Neill, John S
N1 - Copyright © 2019 MRC Laboratory of Molecular Biology. Published by Elsevier Inc. All rights reserved.
PY - 2019/5/2
Y1 - 2019/5/2
N2 - In mammals, endogenous circadian clocks sense and respond to daily feeding and lighting cues, adjusting internal ∼24 h rhythms to resonate with, and anticipate, external cycles of day and night. The mechanism underlying circadian entrainment to feeding time is critical for understanding why mistimed feeding, as occurs during shift work, disrupts circadian physiology, a state that is associated with increased incidence of chronic diseases such as type 2 (T2) diabetes. We show that feeding-regulated hormones insulin and insulin-like growth factor 1 (IGF-1) reset circadian clocks in vivo and in vitro by induction of PERIOD proteins, and mistimed insulin signaling disrupts circadian organization of mouse behavior and clock gene expression. Insulin and IGF-1 receptor signaling is sufficient to determine essential circadian parameters, principally via increased PERIOD protein synthesis. This requires coincident mechanistic target of rapamycin (mTOR) activation, increased phosphoinositide signaling, and microRNA downregulation. Besides its well-known homeostatic functions, we propose insulin and IGF-1 are primary signals of feeding time to cellular clocks throughout the body.
AB - In mammals, endogenous circadian clocks sense and respond to daily feeding and lighting cues, adjusting internal ∼24 h rhythms to resonate with, and anticipate, external cycles of day and night. The mechanism underlying circadian entrainment to feeding time is critical for understanding why mistimed feeding, as occurs during shift work, disrupts circadian physiology, a state that is associated with increased incidence of chronic diseases such as type 2 (T2) diabetes. We show that feeding-regulated hormones insulin and insulin-like growth factor 1 (IGF-1) reset circadian clocks in vivo and in vitro by induction of PERIOD proteins, and mistimed insulin signaling disrupts circadian organization of mouse behavior and clock gene expression. Insulin and IGF-1 receptor signaling is sufficient to determine essential circadian parameters, principally via increased PERIOD protein synthesis. This requires coincident mechanistic target of rapamycin (mTOR) activation, increased phosphoinositide signaling, and microRNA downregulation. Besides its well-known homeostatic functions, we propose insulin and IGF-1 are primary signals of feeding time to cellular clocks throughout the body.
U2 - 10.1016/j.cell.2019.02.017
DO - 10.1016/j.cell.2019.02.017
M3 - Article
C2 - 31030999
SN - 0092-8674
VL - 177
SP - 896-909.e20
JO - Cell
JF - Cell
IS - 4
ER -