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5′-AMP-activated Protein Kinase Phosphorylates IRS-1 on Ser-789 in Mouse C2C12 Myotubes in Response to 5-Aminoimidazole-4-carboxamide Riboside
Open accessAbstract
Exercise is known to increase insulin sensitivity and is an effective form of treatment for the hyperglycemia observed in type 2 diabetes. Activation of 5'-AMP-activated protein kinase (AMPK) by 5-aminoimidazole-4-carboxamide riboside (AICAR), exercise, or electrically stimulated contraction leads to increased glucose transport in skeletal muscle. Here we report the first evidence of a direct interaction between AMPK and the most upstream component of the insulin-signaling cascade, insulin receptor substrate-1 (IRS-1). We find that AMPK rapidly phosphorylates IRS-1 on Ser-789 in cell-free assays as well as in mouse C2C12 myotubes incubated with AICAR. In the C2C12 myotubes activation of AMPK by AICAR matched the phosphorylation of IRS-1 on Ser-789. This phosphorylation correlates with a 65% increase in insulin-stimulated IRS-1-associated phosphatidylinositol 3-kinase activity in C2C12 myotubes preincubated with AICAR. The binding of phosphatidylinositol 3-kinase to IRS-1 was not affected by AICAR. These results demonstrate the existence of an interaction between AMPK and early insulin signaling that could be of importance to our understanding of the potentiating effects of exercise on insulin signaling.
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“It has been reported that AMPK rapidly phosphorylates IRS1 on S789 in vitro and treatment with AICAR increases IRS1 S789 phosphorylation in mouse C2C12 myotubes, suggesting a possible link between the potentiating effects of exercise on insulin signaling [145].”
From AMPK and Exercise: Glucose Uptake and Insulin Sensitivity (2013) · cites this paper as [145]
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“…et al. 1989; ; Watt et al., 2006 IRS1; adaptor protein Insulin receptor substrate 1, adaptor protein modulation of PI3 kinase signaling cytoplasm Jakobsen et al., 2001; Tzatsos & Tsichlis, 2007 KCNMA1 iso4; ┙ subunit of BKCa channel Potassium channel, activated in response to mem- brane…”
BackgroundShen, H.-C., Chen, Z., Liu, X., Guan, J.-F., Xie, D., Li, Y., & Xu, C. (2022) · American Journal of Physiology-Regulatory, Integrative and Comparative Physiology · doi:10.1152/ajpregu.00226.2022 · Cited by 14
Duan, H., Song, S., Li, R., Hu, S., Zhuang, S., Liu, S., Li, X., & Gao, W. (2024) · Diabetology & Metabolic Syndrome · doi:10.1186/s13098-024-01432-7 · Cited by 16
“Moreover, targeting AMPK signaling also improves insulin sensitivity, thereby addressing one of the central pathological features of MAFLD [40].”
BackgroundPark, S., Hong, S. M., Lee, J. E., & Sung, S. R. (2007) · Life Sciences · doi:10.1016/j.lfs.2007.04.001 · Cited by 17
Multiple AMPK activators inhibit l -carnitine uptake in C2C12 skeletal muscle myotubes
Shaw, A., Jeromson, S., Watterson, K. R., Pediani, J. D., Gallagher, I. J., Whalley, T., Dreczkowski, G., Brooks, N. E., Galloway, S. D. R., & Hamilton, D. L. (2017) · American Journal of Physiology-Cell Physiology · doi:10.1152/ajpcell.00026.2016 · Cited by 13
“1 M for insulin stimulation) at 80 Ci/ Mol] and each treatment was completed with the addition of insulin (100 nM and 150 nM) or one of the following AMPK activators: AICAR [250 M (previously shown to activate AMPK at 500 M) (23)], 2,4-dinitrophenol (DNP) [500 M (activates AMPK in L6 myotubes at 500 M) (39)],”
BackgroundSilva, F. D. F., Ortiz‐Silva, M., Galia, W. B. D. S., Cassolla, P., da Silva, F. G., Graciano, M. F. R., Carpinelli, Â. R., & de Souza, H. M. (2018) · Canadian Journal of Physiology and Pharmacology · doi:10.1139/cjpp-2017-0171 · Cited by 13
“Once activated, AMPK stimulates the INS signaling pathway proteins, such as protein kinase 3 (PI3K) and protein kinase B (Akt or PKB) (Kurth-Kraczek et al. 1999; Jakobsen et al. 2001).”
BackgroundThe Mechanisms of Insulin Action
White, M. F., & Copps, K. D. (2015) · Elsevier eBooks · doi:10.1016/b978-0-323-18907-1.00033-0 · Cited by 12
Gaidhu, M. P., & Ceddia, R. B. (2009) · Clinical Lipidology · doi:10.2217/clp.09.30 · Cited by 12
Chan, C. B., Liu, X., He, K., Qi, Q., Jung, D. Y., Kim, J. K., & Ye, K. (2011) · EMBO Reports · doi:10.1038/embor.2011.108 · Cited by 12
“Antibodies used in the western blot analysis were obtained from Santa Cruz Biotechnology (p110a, IRS1 and Akt) and Cell Signaling Technology (phospho-Akt and phospho-insulin-receptor, phospho-AMPK, phospho-ACC, phosphoFoxO1 and FoxO1).”
BackgroundInfluentialIGF-1 and Insulin Receptor Signalling in Insulin-Secreting Cells: From Function to Survival
Ullrich, S. (2013) · Springer eBooks · doi:10.1007/978-94-007-6686-0_26 · Cited by 12
The metabolic actions of thyroid hormone and leptin: a mandatory interplay or not?
Vettor, R. (2005) · Diabetologia · doi:10.1007/s00125-005-1703-9 · Cited by 11
“Early activation of AMPK occurs by leptin acting directly on muscle, whereas later activation depends on leptin functioning through the hypothalamic–sympathetic nervous system axis.”
BackgroundInfluentialSun, C., Yang, X., Jin, Z., & Gao, Z. (2022) · Journal of Chemotherapy · doi:10.1080/1120009x.2022.2091122 · Cited by 10
Im, J., Park, H., & Park, K. (2022) · Nutrients · doi:10.3390/nu14224771 · Cited by 8
“AMPK is an important cellular energy sensor and signal transducer for maintaining energy homeostasis, a process regulated by extensive metabolic stress [35,36] and which plays a role in regulating insulin sensitivity by directly phosphorylating insulin receptor substrate 1 [37] or by phosphorylating tuberous sclerosis…”
BackgroundAMPK signaling in neuronal polarization
Amato, S., & Man, H. (2012) · Communicative & Integrative Biology · doi:10.4161/cib.18968 · Cited by 9
Serpiello, F. R., McKenna, M. J., Coratella, G., Markworth, J. F., Tarperi, C., Bishop, D. J., Stepto, N. K., Cameron‐Smith, D., & Schena, F. F. (2014) · International Journal of Sports Medicine · doi:10.1055/s-0034-1367045 · Cited by 7
Park, S.-H., Kim, S.-Y., Baek, W., Lim, B., Park, J., Sung, H., Kim, Y., Bae, K., Bae, J., & Song, D. (2009) · Life Sciences · doi:10.1016/j.lfs.2009.05.010 · Cited by 7
Signaling by AMP‐activated Protein Kinase
Neumann, D., Wallimann, T., Rider, M. H., Tokarska-Schlattner, M., Hardie, D. G., & Schlattner, U. (2007) · Wiley eBooks · doi:10.1002/9783527621095.ch9 · Cited by 7
Self-citation
Metadata
- Authors
- Jakobsen, S. N., Hardie, D. G., Morrice, N., & Tornqvist, H. E.
- Affiliations
- Novo Nordisk (Denmark) (DK)
- Wellcome Trust (GB)
- University of Dundee (GB)
- Corresponding author
- Jakobsen, Søren N.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2001-12
- Volume
- 276
- Issue
- 50
- Pages
- 46912-46916
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2041502315
- Cited by
- 238
- References
- 36
- Citations by year
- 2025: 1 · 2024: 4 · 2023: 1 · 2022: 5 · 2021: 4 · 2020: 7 · 2019: 4 · 2018: 9 · 2017: 10 · 2016: 6 · 2015: 6 · 2014: 11 · 2013: 16 · 2012: 13
- FWCI
- 3.03
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Biological Chemistry (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Natural Antidiabetic Agents Studies
- Health Sciences › Medicine › Physiology (medical) › Adipose Tissue and Metabolism
- Keywords
- AMPK, IRS-1, AICAR, phosphatidylinositol 3-kinase, insulin signaling, skeletal muscle, C2C12 myotubes, physical activity, insulin sensitivity, type 2 diabetes, glucose transport
- MeSH terms
- Aminoimidazole Carboxamide, Animals, Binding Sites, Biological Transport, Cells, Cultured, Dose-Response Relationship, Drug, Electrophoresis, Polyacrylamide Gel, Enzyme Activation, Glucose, Humans, Insulin, Multienzyme Complexes, Myocardium, Peptides, Phosphoproteins, Phosphorylation, Protein Binding, Recombinant Proteins, Ribonucleosides, Serine, Subcellular Fractions, Time Factors, Blotting, Western, Signal Transduction, Protein Serine-Threonine Kinases, Muscle, Skeletal, Phosphatidylinositol 3-Kinases, Mice, AMP-Activated Protein Kinases, Insulin Receptor Substrate Proteins
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