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Cited by 213

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Activin Signaling Targeted by Insulin/dFOXO Regulates Aging and Muscle Proteostasis in Drosophila

Open access
Bai, Hua, Kang, Ping, Hernandez, Ana Maria, Tatar, Marc·2013·PLoS Genetics

Abstract

Reduced insulin/IGF signaling increases lifespan in many animals. To understand how insulin/IGF mediates lifespan in Drosophila, we performed chromatin immunoprecipitation-sequencing analysis with the insulin/IGF regulated transcription factor dFOXO in long-lived insulin/IGF signaling genotypes. Dawdle, an Activin ligand, is bound and repressed by dFOXO when reduced insulin/IGF extends lifespan. Reduced Activin signaling improves performance and protein homeostasis in muscles of aged flies. Activin signaling through the Smad binding element inhibits the transcription of Autophagy-specific gene 8a (Atg8a) within muscle, a factor controlling the rate of autophagy. Expression of Atg8a within muscle is sufficient to increase lifespan. These data reveal how insulin signaling can regulate aging through control of Activin signaling that in turn controls autophagy, representing a potentially conserved molecular basis for longevity assurance. While reduced Activin within muscle autonomously retards functional aging of this tissue, these effects in muscle also reduce secretion of insulin-like peptides at a distance from the brain. Reduced insulin secretion from the brain may subsequently reinforce longevity assurance through decreased systemic insulin/IGF signaling.

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Metadata

Authors
Bai, H., Kang, P., Hernandez, A. M., & Tatar, M.
Venue
PLoS Genetics
Published
2013-11-07
Volume
9
Issue
11
Pages
e1003941
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2084796956
Cited by
213
References
13
FWCI
4.59
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Activin Signaling Targeted by Insulin/dFOXO Regulates Aging and Muscle Proteostasis in Drosophila. https://app.cochat.ai/papers/10.1371/journal.pgen.1003941
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Bai, H., Kang, P., Hernandez, A. M., & Tatar, M. (2013). Activin Signaling Targeted by Insulin/dFOXO Regulates Aging and Muscle Proteostasis in Drosophila. PLoS Genetics. https://doi.org/10.1371/journal.pgen.1003941

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