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Multi-omics profiling reveals rhythmic liver function shaped by meal timing
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DOI：10.1038/s41467-023-41759-9.png)
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摘要
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Post-translational modifications (PTMs) couple feed-fast cycles to diurnal rhythms. However, it remains largely uncharacterized whether and how meal timing organizes diurnal rhythms beyond the transcriptome. Here, we systematically profile the daily rhythms of the proteome, four PTMs (phosphorylation, ubiquitylation, succinylation and N-glycosylation) and the lipidome in the liver from young female mice subjected to either day/sleep time-restricted feeding (DRF) or night/wake time-restricted feeding (NRF). We detect robust daily rhythms among different layers of omics with phosphorylation the most nutrient-responsive and succinylation the least. Integrative analyses reveal that clock regulation of fatty acid metabolism represents a key diurnal feature that is reset by meal timing, as indicated by the rhythmic phosphorylation of the circadian repressor PERIOD2 at Ser971 (PER2-pSer971). We confirm that PER2-pSer971 is activated by nutrient availability in vivo. Together, this dataset represents a comprehensive resource detailing the proteomic and lipidomic responses by the liver to alterations in meal timing. Post-translational modifications (PTMs) couple feed-fast cycles to circadian clocks. Here, the authors systematically profile daily rhythms of the proteome, 4 PTMs and lipidome in mouse livers under TRF, providing a comprehensive resource detailing rhythmic liver functions shaped by meal timing.
Keyword:
REV-ERB-ALPHA
CIRCADIAN CLOCK
GENE-EXPRESSION
PHOSPHORYLATION
TIME
ORGANIZATION
METABOLISM
SENSOR
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15.7
论文数:
9.4W
被引数:
91.2W
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