Circadian clock NAD+ cycle drives mitochondrial oxidative metabolism in mice

Clara Bien, Alison H. Affinati, Kathryn M Ramsey, Hsin Yu Kuo, Wei Yu, Laura A. Sena, Olga Ilkayeva, Biliana Marcheva, Yumiko Kobayashi, Chiaki Omura, Daniel C. Levine, David J. Bacsik, David R Gius, Christopher B. Newgard, Eric Goetzman, Navdeep Chandel, John M. Denu, Milan Mrksich, Joseph Bass*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

361 Scopus citations

Abstract

Circadian clocks are self-sustained cellular oscillators that synchronize oxidative and reductive cycles in anticipation of the solar cycle. We found that the clock transcription feedback loop produces cycles of nicotinamide adenine dinucleotide (NAD+) biosynthesis, adenosine triphosphate production, and mitochondrial respiration through modulation of mitochondrial protein acetylation to synchronize oxidative metabolic pathways with the 24-hour fasting and feeding cycle. Circadian control of the activity of the NAD +-dependent deacetylase sirtuin 3 (SIRT3) generated rhythms in the acetylation and activity of oxidative enzymes and respiration in isolated mitochondria, and NAD+ supplementation restored protein deacetylation and enhanced oxygen consumption in circadian mutant mice. Thus, circadian control of NAD+ bioavailability modulates mitochondrial oxidative function and organismal metabolism across the daily cycles of fasting and feeding.

Original languageEnglish (US)
Article number1243417
JournalScience
Volume342
Issue number6158
DOIs
StatePublished - 2013

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Circadian clock NAD<sup>+</sup> cycle drives mitochondrial oxidative metabolism in mice'. Together they form a unique fingerprint.

Cite this