Cited by 78Metabolism, Diabetes, and CancerAdipose Tissue and MetabolismMuscle Physiology and Disorders

LKB1 and AMPK and the regulation of skeletal muscle metabolism

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Koh, Ho-Jin, Brandauer, Josef, Goodyear, Laurie J·2008·Current Opinion in Clinical Nutrition and Metabolic Care

Abstract

PURPOSE OF REVIEW: To address the role of LKB1 and AMP-activated protein kinase (AMPK) in glucose transport, fatty acid oxidation, and metabolic adaptations in skeletal muscle. RECENT FINDINGS: Contraction-mediated skeletal muscle glucose transport is decreased in muscle-specific LKB1 knockout mice, but not in whole body AMPKalpha2 knockout mice or AMPKalpha2 inactive transgenic mice. Chronic activation of AMPK by 5-aminoimidazole-4-carboxamide-1-beta-D-ribofuranoside (AICAR) and beta-guanadinopropionic acid enhances mitochondrial function in skeletal muscle, but AICAR or exercise-induced increases in mitochondrial markers are preserved in skeletal muscles from whole body AMPKalpha2 or muscle-specific LKB1 knockout mice. Pharmacological activation of AMPK increases glucose transport and fatty acid oxidation in skeletal muscle. Therefore, chronic activation of AMPK may be beneficial in the treatment of obesity and type 2 diabetes. SUMMARY: LKB1 and AMPK play important roles in regulating metabolism in resting and contracting skeletal muscle.

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  • AMPK detects the nutrient status of the cell and helps regulate glucose transport, fatty acid oxidation, and metabolic adaptations in skeletal muscle.

    “Another enzyme central to cellular bioenergetics is AMP-activated protein kinase (AMPK), which detects the nutrient status of the cell and helps regulate glucose transport, fatty acid oxidation, and metabolic adaptations in skeletal muscle 159.”

    From Cellular bioenergetics as a target for obesity therapy (2010) · cites this paper as [159]

  • Chronic activation of AMPK by AICAR enhances mitochondrial function in skeletal muscle.

    “Chronic activation of AMPK by 5-aminoimidazole-4-carboxamide-1-β-D-ribofuranoside (AICAR, Table 2) enhances mitochondrial function in skeletal muscle 159.”

    From Cellular bioenergetics as a target for obesity therapy (2010) · cites this paper as [159]

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  1. [37]Hirshman MF, Koh HJ, Goodyear LJ. LKB1 in muscle is critical for exercise capacity and partially regulates glucose transport. Diabetes. 2006;55 (Suppl 1):A13. [Google Scholar]

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Authors
Koh, H.-J., Brandauer, J., & Goodyear, L. J.
Affiliations
Joslin Diabetes Center (US)
Corresponding author
Goodyear, Laurie J
Venue
Current Opinion in Clinical Nutrition and Metabolic Care
Published
2008-05
Volume
11
Issue
3
Pages
227-232
ISSN
1363-1950 (ISSN-L)
OpenAlex
W2036199274
Cited by
78
References
80
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 6 · 2021: 3 · 2020: 3 · 2019: 5 · 2018: 3 · 2017: 5 · 2016: 6 · 2015: 6 · 2014: 1 · 2013: 5 · 2012: 4
FWCI
0.54
Type
journal article
Language
en
Open access
Locations
  • Current Opinion in Clinical Nutrition & Metabolic Care (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (T32-DK-07260-29, DK-68626, R01DK068626, T32DK007260)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR45670, R01AR045670)
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
LKB1, AMPK, skeletal muscle metabolism, glucose transport, fatty acid oxidation, mitochondrial function, muscle contraction, AMPKα2, AICAR, physical activity, obesity, type 2 diabetes
MeSH terms
AMP-Activated Protein Kinase Kinases, Animals, Enzyme Activation, Fatty Acids, Glucose, Humans, Multienzyme Complexes, Muscle Contraction, Protein Serine-Threonine Kinases, Mice, Knockout, Muscle, Skeletal, Mice, AMP-Activated Protein Kinases

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