Cited by 656Genetics, Aging, and Longevity in Model OrganismsFOXO transcription factor regulationMuscle Physiology and Disorders

FOXO/4E-BP Signaling in Drosophila Muscles Regulates Organism-wide Proteostasis during Aging

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Demontis, Fabio, Perrimon, Norbert·2010·Cell

Abstract

The progressive loss of muscle strength during aging is a common degenerative event of unclear pathogenesis. Although muscle functional decline precedes age-related changes in other tissues, its contribution to systemic aging is unknown. Here, we show that muscle aging is characterized in Drosophila by the progressive accumulation of protein aggregates that associate with impaired muscle function. The transcription factor FOXO and its target 4E-BP remove damaged proteins at least in part via the autophagy/lysosome system, whereas foxo mutants have dysfunctional proteostasis. Both FOXO and 4E-BP delay muscle functional decay and extend life span. Moreover, FOXO/4E-BP signaling in muscles decreases feeding behavior and the release of insulin from producing cells, which in turn delays the age-related accumulation of protein aggregates in other tissues. These findings reveal an organism-wide regulation of proteostasis in response to muscle aging and a key role of FOXO/4E-BP signaling in the coordination of organismal and tissue aging.

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Authors
Demontis, F., & Perrimon, N.
Affiliations
  • Harvard University (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Demontis, Fabio
  • Perrimon, Norbert
Venue
Cell
Publisher
Elsevier BV
Published
2010-11
Volume
143
Issue
5
Pages
813-825
ISSN
0092-8674 (ISSN-L)
OpenAlex
W1972597570
Cited by
656
References
64
Citations by year
2026: 26 · 2025: 41 · 2024: 40 · 2023: 34 · 2022: 54 · 2021: 73 · 2020: 42 · 2019: 38 · 2018: 37 · 2017: 48 · 2016: 49 · 2015: 39 · 2014: 44 · 2013: 42 · 2012: 22
FWCI
9.93
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (acceptedVersion)
Funders
  • Ellison Medical Foundation
  • National Institutes of Health
  • National Cancer Institute (P01CA120964)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK088718)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR057352)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › FOXO transcription factor regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
FOXO, 4E-BP, muscle aging, proteostasis, protein aggregates, autophagy-lysosome system, Drosophila, lifespan extension, insulin signaling, feeding behavior, systemic aging
MeSH terms
Aging, Animals, Autophagy, Drosophila melanogaster, Humans, Lysosomes, Muscle Proteins, Muscles, Peptide Initiation Factors, Signal Transduction, Models, Animal, Drosophila Proteins, Intracellular Signaling Peptides and Proteins, Forkhead Transcription Factors

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