The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.
Higher activation of autophagy in skeletal muscle of mice during endurance exercise in the fasted state
Abstract
Activation of autophagy in skeletal muscle has been reported in response to endurance exercise and food deprivation independently. The purpose of this study was to evaluate whether autophagy was more activated when both stimuli were combined, namely when endurance exercise was performed in a fasted rather than a fed state. Mice performed a low-intensity running exercise (10 m/min for 90min) in both dietary states after which the gastrocnemius muscles were removed. LC3b-II, a marker of autophagosome presence, increased in both conditions, but the increase was higher in the fasted state. Other protein markers of autophagy, like Gabarapl1-II and Atg12 conjugated form as well as mRNA of Lc3b, Gabarapl1, and p62/Sqstm1 were increased only when exercise was performed in a fasted state. The larger activation of autophagy by exercise in a fasted state was associated with a larger decrease in plasma insulin and phosphorylation of Akt Ser473, Akt Thr308, FoxO3a Thr32, and ULK1 Ser757. AMPKα Thr172, ULK1 Ser317, and ULK1 Ser555 remained unchanged in both conditions, whereas p38 Thr180/Tyr182 increased during exercise to a similar extent in the fasted and fed conditions. The marker of mitochondrial fission DRP1 Ser616 was increased by exercise independently of the nutritional status. Changes in mitophagy markers BNIP3 and Parkin suggest that mitophagy was increased during exercise in the fasted state. In conclusion, our results highlight a major implication of the insulin-Akt-mTOR pathway and its downstream targets FoxO3a and ULK1 in the larger activation of autophagy observed when exercise is performed in a fasted state compared with a fed state.
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“Another instance when both mRNA and protein levels of SQSTM1 are elevated, even though autophagic flux is not impaired, is observed in aneuploid human and murine cells that are generated by introduction of one or two extra chromosomes [581, 582].”
From Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition) 1 (2021) · cites this paper as [582]
In the citing paper
“Furthermore, mounting evidence shows that autophagy is regulated by distinct mechanisms in different cell types [11–26], and these cell type-specific mechanisms underlie the differential vulnerability of separate tissues to autophagy mutations, resulting in heterogenous manifestations of disease.”
From Autophagy and ALS: mechanistic insights and therapeutic implications (2022) · cites this paper as [16]
In the citing paper
“Exercise also potentiates autophagy activation due to starvation and the resulting reduction in plasma insulin, which in turn downregulates AKT and FOXO3 signaling [16,18].”
From Autophagy and ALS: mechanistic insights and therapeutic implications (2022) · cites this paper as [16]
In the citing paper
“Studies in rodents have shown an increased abundance of autophagy proteins including Drp1 and Bcl-2 and 19 kDa interacting protein-3 (Bnip3) after exercise (60, 65, 71, 78).”
From Mitochondria initiate and regulate sarcopenia (2017) · cites this paper as [60]
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Cites
AMPK and mTOR regulate autophagy through direct phosphorylation of Ulk1
Kim, J., Kundu, M., Viollet, B., & Guan, K.-L. (2011) · Nature Cell Biology · doi:10.1038/ncb2152 · Cited by 7,227
Autophagy in the Pathogenesis of Disease
Levine, B., & Kroemer, G. (2008) · Cell · doi:10.1016/j.cell.2007.12.018 · Cited by 7,069
Pankiv, S., Clausen, T. H., Lamark, T., Brech, A., Bruun, J.-A., Outzen, H., Øvervatn, A., Bjørkøy, G., & Johansen, T. (2007) · Journal of Biological Chemistry · doi:10.1074/jbc.m702824200 · Cited by 4,578
Mitochondrial Fission, Fusion, and Stress
Youle, R. J., & van der Bliek, A. M. (2012) · Science · doi:10.1126/science.1219855 · Cited by 3,674
Fission and selective fusion govern mitochondrial segregation and elimination by autophagy
Twig, G., Elorza, A., Molina, A. J. A., Mohamed, H., Wikstrom, J. D., Walzer, G., Stiles, L., Haigh, S. E., Katz, S., Las, G., et al. (2008) · The EMBO Journal · doi:10.1038/sj.emboj.7601963 · Cited by 3,082
How to Interpret LC3 Immunoblotting
Mizushima, N., & Yoshimori, T. (2007) · Autophagy · doi:10.4161/auto.4600 · Cited by 2,595
Autophagy: from phenomenology to molecular understanding in less than a decade
Klionsky, D. J. (2007) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2245 · Cited by 1,977
FoxO3 Controls Autophagy in Skeletal Muscle In Vivo
Mammucari, C., Milan, G., Romanello, V., Masiero, E., Rudolf, R., Del Piccolo, P., Burden, S. J., Di Lisi, R., Sandri, C., Zhao, J., et al. (2007) · Cell Metabolism · doi:10.1016/j.cmet.2007.11.001 · Cited by 1,953
Bellot, G., Garcia-Medina, R., Gounon, P., Chiche, J., Roux, D., Pouysségur, J., & Mazure, N. M. (2009) · Molecular and Cellular Biology · doi:10.1128/mcb.00166-09 · Cited by 1,501
Zhao, J., Brault, J. J., Schild, A., Cao, P., Sandri, M., Schiaffino, S., Lecker, S. H., & Goldberg, A. L. (2007) · Cell Metabolism · doi:10.1016/j.cmet.2007.11.004 · Cited by 1,489
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Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition).
Klionsky, D. J., Abdelmohsen, K., Abe, A., Abedin, M. J., Abeliovich, H., Acevedo Arozena, A., Adachi, H., Adams, C. M., Adams, P. D., Adeli, K., et al. (2016) · Autophagy · doi:10.1080/15548627.2015.1100356 · Cited by 5,894
Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition) 1
Klionsky, D. J., Abdel-Aziz, A. K., Abdelfatah, S., Abdellatif, M., Abdoli, A., Abel, S., Abeliovich, H., Abildgaard, M. H., Abudu, Y. P., Acevedo-Arozena, A., et al. (2021) · Autophagy · doi:10.1080/15548627.2020.1797280 · Cited by 2,897
Lysosomal calcium signalling regulates autophagy through calcineurin and TFEB
Medina, D. L., Paola, S. D., Peluso, I., Armani, A., Stefani, D. D., Venditti, R., Montefusco, S., Rosato, A. S., Prezioso, C., Forrester, A. R., et al. (2015) · Nature Cell Biology · doi:10.1038/ncb3114 · Cited by 1,452
Monitoring and Measuring Autophagy
Yoshii, S. R., & Mizushima, N. (2017) · International Journal of Molecular Sciences · doi:10.3390/ijms18091865 · Cited by 1,107
Laker, R. C., Drake, J. C., Wilson, R. J., Lira, V. A., Lewellen, B. M., Ryall, K. A., Fisher, C. C., Zhang, M., Saucerman, J. J., Goodyear, L. J., et al. (2017) · Nature Communications · doi:10.1038/s41467-017-00520-9 · Cited by 529
Metadata
- Authors
- Jamart, C., Naslain, D., Gilson, H., & Francaux, M.
- Affiliations
- UCLouvain (BE)
- Corresponding author
- Francaux, Marc
- ORCID
- Francaux, Marc
- Venue
- American Journal of Physiology-Endocrinology and Metabolism
- Publisher
- American Physiological Society
- Published
- 2013-10-15
- Volume
- 305
- Issue
- 8
- Pages
- E964-E974
- ISSN
- 0193-1849 (ISSN-L)
- 1522-1555
- OpenAlex
- W2158565718
- Cited by
- 148
- References
- 55
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 7 · 2023: 5 · 2022: 19 · 2021: 16 · 2020: 12 · 2019: 10 · 2018: 17 · 2017: 17 · 2016: 15 · 2015: 17 · 2014: 6 · 2013: 2
- FWCI
- 9.72
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Physiology-Endocrinology and Metabolism (publishedVersion)
- PubMed (publishedVersion)
- Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion)
- Funders
- Fondation Louvain
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Autophagy in Disease and Therapy
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
- Health Sciences › Medicine › Physiology (medical) › Exercise and Physiological Responses
- Keywords
- autophagy, endurance exercise, fasting, skeletal muscle, gastrocnemius, FOXO3, ULK1, mitophagy, Drp1, AMPK, p38 MAPK, GABARAPL1, LC3B, p62, food deprivation
- MeSH terms
- Sequestosome-1 Protein, Animals, Autophagy, Fasting, Female, Heat-Shock Proteins, Membrane Proteins, Mice, Inbred C57BL, Microtubule-Associated Proteins, Motor Activity, Physical Endurance, RNA, Messenger, Signal Transduction, Biomarkers, Up-Regulation, Muscle, Skeletal, Cytoplasmic Vesicles, Mitochondrial Proteins, Dynamins, Adaptor Proteins, Signal Transducing, Mice, Mitochondrial Dynamics
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