Cited by 875Exercise and Physiological ResponsesAdipokines, Inflammation, and Metabolic DiseasesMuscle Physiology and Disorders

Muscle‐derived interleukin‐6: mechanisms for activation and possible biological roles

FEBBRAIO, MARK A., PEDERSEN, BENTE KLARLUND·2002·The FASEB Journal

Abstract

It has recently been demonstrated that the marked increase in the systemic concentration of cytokine interleukin‐6 (IL‐6) seen with exercise originates from the contracting limb and that skeletal muscle cells per se are the likely source of the production. This review summarizes the possible mechanisms for activation and biological consequences of muscle‐derived IL‐6. It appears that intramuscular IL‐6 is stimulated by complex signaling cascades initiated by both calcium (Ca 2+ ) ‐dependent and ‐independent stimuli. It also seems likely that skeletal muscle produces IL‐6 to aid in maintaining metabolic homeostasis during periods of altered metabolic demand such as muscular exercise or insulin stimulation. It may do so via local and/or systemic effects. This review also explores the efficacy that IL‐6 may be used as a therapeutic drug in treating metabolic disorders such as obesity, type 2 diabetes, and atherosclerosis.—Febbraio, M. A., Pedersen, B. K. Muscle‐derived interleukin 6: mechanisms for activation and possible biological roles. FASEB J. 16, 1335–1347 (2002)

Integrity signals

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Crossref · 10.1096/fj.01-0876rev

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143 of 143 references verified0 citation errors · 0 not checkable

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  • Increased levels of IL-6 after exercise are followed by increased expression of IL-1ra and IL-10, constituting an anti-inflammatory component and a response to increased circulating IL-6 induced by exercise.

    “Increased levels of IL-6 after exercise are followed by increased expression of the IL-1 receptor antagonist (IL-1ra) and IL-10, such adjustment chronically constitutes an anti-inflammatory component and a response to the increase in circulating IL-6 induced by exercise (Febbraio and Pedersen, 2002).”
  • Interleukin-6 is produced in, and subsequently released from, contracting muscle.

    “However, there is also evidence that interleukin-6 is produced in, and subsequently released from, contracting muscle (61,62)”
  • The magnitude by which plasma IL-6 increases is related to exercise duration, intensity, and muscle mass involved in the mechanical work.

    “The magnitude by which plasma IL-6 increases is related to exercise duration, intensity, and muscle mass involved in the mechanical work [13, 18, 60, 62].”
  • Circulating IL-6 increases in an exponential fashion up to 100 fold in response to exercise and declines in the postexercise period.

    “The level of circulating IL-6 increases in an exponential fashion (up to 100 fold) in response to exercise, and declines in the postexercise period [60–62].”

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Authors
FEBBRAIO, M. A., & PEDERSEN, B. K.
Affiliations
University of Copenhagen (DK)
Venue
The FASEB Journal
Publisher
Wiley
Published
2002-09
Volume
16
Issue
11
Pages
1335-1347
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2127647469
Cited by
875
References
143
Citations by year
2026: 18 · 2025: 27 · 2024: 22 · 2023: 30 · 2022: 27 · 2021: 31 · 2020: 38 · 2019: 29 · 2018: 37 · 2017: 38 · 2016: 37 · 2015: 43 · 2014: 46 · 2013: 46 · 2012: 48
FWCI
6.36
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
interleukin-6, skeletal muscle, physical activity, cytokine production, calcium signaling, insulin signaling, metabolic homeostasis, obesity, type 2 diabetes, atherosclerosis, therapeutic drug targets
MeSH terms
Animals, Anti-Inflammatory Agents, Diabetes Mellitus, Type 2, Glucose, Glycogen, Humans, Insulin Resistance, Models, Biological, Monocytes, Signal Transduction, Exercise, Interleukin-6, Muscle, Skeletal, Lipid Metabolism

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