Cited by 228Genetics, Aging, and Longevity in Model OrganismsDietary Effects on HealthCircadian rhythm and melatonin

Circadian autophagy drives iTRF-mediated longevity

Open access
Ulgherait, Matt, Midoun, Adil M., Park, Scarlet J., Gatto, Jared A., Tener, Samantha J., Siewert, Julia, Klickstein, Naomi, Canman, Julie C. +2 more·2021·Nature

Abstract

Time-restricted feeding (TRF) has recently gained interest as a potential anti-ageing treatment for organisms from Drosophila to humans 1-5. TRF restricts food intake to specific hours of the day. Because TRF controls the timing of feeding, rather than nutrient or caloric content, TRF has been hypothesized to depend on circadian-regulated functions; the underlying molecular mechanisms of its effects remain unclear. Here, to exploit the genetic tools and well-characterized ageing markers of Drosophila, we developed an intermittent TRF (iTRF) dietary regimen that robustly extended fly lifespan and delayed the onset of ageing markers in the muscles and gut. We found that iTRF enhanced circadian-regulated transcription and that iTRF-mediated lifespan extension required both circadian regulation and autophagy, a conserved longevity pathway. Night-specific induction of autophagy was both necessary and sufficient to extend lifespan on an ad libitum diet and also prevented further iTRF-mediated lifespan extension. By contrast, day-specific induction of autophagy did not extend lifespan. Thus, these results identify circadian-regulated autophagy as a critical contributor to iTRF-mediated health benefits in Drosophila. Because both circadian regulation and autophagy are highly conserved processes in human ageing, this work highlights the possibility that behavioural or pharmaceutical interventions that stimulate circadian-regulated autophagy might provide people with similar health benefits, such as delayed ageing and lifespan extension.

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  • Time-restricted feeding (TRF), a healthy diet, extends Drosophila lifespan and delays onset of ageing markers in muscles and gut by stimulating circadian-regulated autophagy.

    “Time-restricted feeding (TRF), a healthy diet, extends the Drosophila lifespan and delays the onset of ageing markers in the muscles and gut by stimulating circadian-regulated autophagy.487”

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  1. [21]Delventhal R Dissection of central clock function in Drosophila through cell-specific CRISPR-mediated clock gene disruption. bioRxiv, 640011, doi: 10.1101/640011 (2019). PMC6794090 31613218 · DOI

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Authors
Ulgherait, M., Midoun, A. M., Park, S. J., Gatto, J. A., Tener, S. J., Siewert, J., Klickstein, N., Canman, J. C., Ja, W. W., & Shirasu-Hiza, M.
Affiliations
  • Columbia University (US)
  • Université Paris Sciences et Lettres (FR)
  • Scripps Research Institute (US)
Venue
Nature
Published
2021-09-29
Volume
598
Issue
7880
Pages
353-358
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W3202239352
Cited by
226
References
46
Citations by year
2026: 30 · 2025: 48 · 2024: 44 · 2023: 56 · 2022: 43 · 2021: 5
FWCI
13.31
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health (1r56ag065986-01, P40OD018537)
  • National Institute on Aging (R56AG065986, R01AG045842)
  • National Institute of General Medical Sciences (R01GM117407, T32GM007088, R01GM105775, R35GM127049, T32GM141882, R01GM130764)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
circadian rhythm, autophagy, lifespan extension, aging, Drosophila, feeding timing, muscle aging, ad libitum feeding
MeSH terms
Aging, Animals, Autophagy, Circadian Rhythm, Darkness, Drosophila melanogaster, Feeding Behavior, Female, Longevity, Male, Time Factors, Biomarkers, Circadian Clocks

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