Cited by 92Fibroblast Growth Factor ResearchAdipose Tissue and MetabolismMetabolism, Diabetes, and Cancer

Impaired Mitochondrial Fat Oxidation Induces FGF21 in Muscle

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Vandanmagsar, Bolormaa, Warfel, Jaycob D., Wicks, Shawna E., Ghosh, Sujoy, Salbaum, J. Michael, Burk, David, Dubuisson, Olga S., Mendoza, Tamra M. +3 more·2016·Cell Reports

Abstract

Fatty acids are the primary fuel source for skeletal muscle during most of our daily activities, and impaired fatty acid oxidation (FAO) is associated with insulin resistance. We have developed a mouse model of impaired FAO by deleting carnitine palmitoyltransferase-1b specifically in skeletal muscle (Cpt1b(m-/-)). Cpt1b(m-/-) mice have increased glucose utilization and are resistant to diet-induced obesity. Here, we show that inhibition of mitochondrial FAO induces FGF21 expression specifically in skeletal muscle. The induction of FGF21 in Cpt1b-deficient muscle is dependent on AMPK and Akt1 signaling but independent of the stress signaling pathways. FGF21 appears to act in a paracrine manner to increase glucose uptake under low insulin conditions, but it does not contribute to the resistance to diet-induced obesity.

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Crossref · 10.1016/j.celrep.2016.04.057

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  • Muscle-dependent systemic release of FGF21 increases with starvation, endoplasmic reticulum stress, mitochondrial dysfunction, obesity, mitochondrial myopathies, and aging.

    “In contrast, muscle‐dependent systemic release of FGF21 increases with starvation, endoplasmic reticulum stress, mitochondrial dysfunction, obesity, mitochondrial myopathies, and aging.6, 13, 14, 15, 16, 17, 18, 19”
  • Skeletal muscle is not only a producer but also a target of FGF21 because it expresses the cofactor β-klotho and the FGFRs.

    “Recent studies reported that skeletal muscle is not only a producer but also a target of FGF21 because it expresses the cofactor β‐klotho and the FGFRs.6, 13, 14, 17, 18, 19”

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Authors
Vandanmagsar, B., Warfel, J. D., Wicks, S. E., Ghosh, S., Salbaum, J. M., Burk, D., Dubuisson, O. S., Mendoza, T. M., Zhang, J., Noland, R. C., & Mynatt, R. L.
Affiliations
Pennington Biomedical Research Center (US)
Corresponding author
Mynatt, Randall L.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2016-05
Volume
15
Issue
8
Pages
1686-1699
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2350983772
Cited by
92
References
58
Citations by year
2026: 4 · 2025: 5 · 2024: 11 · 2023: 12 · 2022: 6 · 2021: 10 · 2020: 12 · 2019: 9 · 2018: 10 · 2017: 9 · 2016: 4
FWCI
5.55
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Civil War Book Review (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Louisiana Clinical and Translational Science Center
  • National Institutes of Health
  • National Institute of General Medical Sciences (P20GM103528, P30GM118430, U54GM104940)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK089641, R01DK098687, R01DK103860, T32DK064584, P30DK072476)
  • National Center for Research Resources (P20RR021945)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fibroblast Growth Factor Research
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
mitochondrial fatty acid oxidation, FGF21, skeletal muscle, carnitine palmitoyltransferase 1b, AMPK signaling, AKT1 signaling, insulin resistance, glucose uptake, paracrine signaling, diet-induced obesity
MeSH terms
Adenylate Kinase, Animals, Adipose Tissue, Brown, Carnitine O-Palmitoyltransferase, Energy Metabolism, Fibroblast Growth Factors, Glucose, Humans, Insulin, Insulin-Like Growth Factor I, Mitochondria, Organ Size, Oxidation-Reduction, Stress, Physiological, Signal Transduction, Muscle, Skeletal, Adiposity, Lipid Metabolism, Proto-Oncogene Proteins c-akt, Mice, Adiponectin, Adipose Tissue, White, TOR Serine-Threonine Kinases

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