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Cell Metab. 2011 Feb 2;13(2):125-37. doi: 10.1016/j.cmet.2011.01.006.

Crosstalk between components of circadian and metabolic cycles in mammals.

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1
Department of Molecular Biology and National Centre of Competence in Research Frontiers in Genetics, Sciences III, University of Geneva, 30, Quai Ernest Ansermet, CH-1211 Geneva-4, Switzerland. gad.asher@unige.ch

Abstract

In mammals, most metabolic processes are influenced by biological clocks and feeding rhythms. The mechanisms that couple metabolism to circadian oscillators are just emerging. NAD-dependent enzymes (e.g., Sirtuins and poly[ADP-ribose] polymerases), redox- and/or temperature-dependent transcription factors (e.g., CLOCK, NPAS2, and HSF1), nutrient-sensing transcriptional regulatory proteins (e.g., CREB-CBP-CRCT2, FOXO-p300, nuclear receptors, PGC-1, and SP1 family members) and protein kinases (e.g., AMPK), are plausible candidates for conveying a cell's metabolic state to the core clock circuitry. The intertwining between these acute regulators and circadian clock components is so tight that the discrimination between metabolic and circadian oscillations may be somewhat arbitrary.

PMID:
21284980
DOI:
10.1016/j.cmet.2011.01.006
[Indexed for MEDLINE]
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