Cited by 97Metabolism, Diabetes, and CancerAdipose Tissue and MetabolismMuscle Physiology and Disorders

AMPK and TBC1D1 Regulate Muscle Glucose Uptake After, but Not During, Exercise and Contraction

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Kjøbsted, Rasmus, Roll, Julie L.W., Jørgensen, Nicolas O., Birk, Jesper B., Foretz, Marc, Viollet, Benoit, Chadt, Alexandra, Al-Hasani, Hadi +1 more·2019·Diabetes

Abstract

Exercise increases glucose uptake in skeletal muscle independently of insulin signaling. This makes exercise an effective stimulus to increase glucose uptake in insulin-resistant skeletal muscle. AMPK has been suggested to regulate muscle glucose uptake during exercise/contraction, but findings from studies of various AMPK transgenic animals have not reached consensus on this matter. Comparing methods used in these studies reveals a hitherto unappreciated difference between those studies reporting a role of AMPK and those that do not. This led us to test the hypothesis that AMPK and downstream target TBC1D1 are involved in regulating muscle glucose uptake in the immediate period after exercise/contraction but not during exercise/contraction. Here we demonstrate that glucose uptake during exercise/contraction was not compromised in AMPK-deficient skeletal muscle, whereas reversal of glucose uptake toward resting levels after exercise/contraction was markedly faster in AMPK-deficient muscle compared with wild-type muscle. Moreover, muscle glucose uptake after contraction was positively associated with phosphorylation of TBC1D1, and skeletal muscle from TBC1D1-deficient mice displayed impaired glucose uptake after contraction. These findings reconcile previous observed discrepancies and redefine the role of AMPK activation during exercise/contraction as being important for maintaining glucose permeability in skeletal muscle in the period after, but not during, exercise/contraction.

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  • AMPK decreases inhibition of GLUT4 by phosphorylating AS160 and TBC1D1 proteins.

    “AMPK decreases the inhibition of GLUT4 by phosphorylating Akt substrate 160 (AS160) and TBC1 domain family member 1 (TBC1D1) proteins (252, 254).”

    From Sex differences in the metabolism of glucose and fatty acids by adipose tissue and skeletal muscle in humans (2025) · cites this paper as [254]

    The Results (p. 6) say AMPK-mediated phosphorylation of TBC1D1 has been suggested to increase GLUT4 translocation, supporting the TBC1D1 part of the claim. The Discussion (p. 12) says AMPK can target TBC1D4 (AS160), but that most evidence favors TBC1D1, not TBC1D4, for AMPK-mediated effects on muscle glucose uptake. The paper does not establish that AMPK relieves GLUT4 inhibition by phosphorylating both proteins. (LLM, conf=0.87)

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  1. [10]10. Wasserman DH, Kang L, Ayala JE, Fueger PT, Lee-Young RS. The physiological regulation of glucose fl ux into muscle in vivo. J Exp Biol 2011;214:254 -262

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Authors
Kjøbsted, R., Roll, J. L. W., Jørgensen, N. O., Birk, J. B., Foretz, M., Viollet, B., Chadt, A., Al-Hasani, H., & Wojtaszewski, J. F. P.
Affiliations
  • University of Copenhagen (DK)
  • Section of Molecular Physiology, Department of Nutrition, Exercise, and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
  • Centre National de la Recherche Scientifique (FR)
  • INSERM, U1016, Institut Cochin, Paris, France
  • Deutsches Diabetes-Zentrum e.V. (DE)
  • German Diabetes Center, Leibniz Center for Diabetes Research, Heinrich Heine University Düsseldorf, Medical Faculty, Düsseldorf, Germany
Corresponding author
Wojtaszewski, Jørgen F.P.
Venue
Diabetes
Published
2019-04-22
Volume
68
Issue
7
Pages
1427-1440
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2938098774
Cited by
97
References
67
Citations by year
2026: 5 · 2025: 11 · 2024: 13 · 2023: 12 · 2022: 16 · 2021: 21 · 2020: 17 · 2019: 2
FWCI
4.64
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, other-oa)
  • HAL (submittedVersion)
Funders
  • Danish Council for Independent Research Medical Sciences
  • Novo Nordisk Foundation
  • Lundbeck Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
AMPK, TBC1D1, muscle glucose uptake, physical activity, skeletal muscle contraction, insulin-independent glucose uptake, glucose permeability, insulin resistance
MeSH terms
Animals, Biological Transport, Electrophoresis, Polyacrylamide Gel, Female, Glucose, Insulin, Muscle Contraction, Phosphorylation, Physical Conditioning, Animal, Blotting, Western, Mice, Knockout, Muscle, Skeletal, Glucose-6-Phosphate, GTPase-Activating Proteins, Mice, AMP-Activated Protein Kinases

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