Cited by 516Exercise and Physiological ResponsesMuscle Physiology and DisordersAdipokines, Inflammation, and Metabolic Diseases

Muscle as a secretory organ

Pedersen, Bente K.·2013·Comprehensive physiology

Abstract

Skeletal muscle is the largest organ in the body. Skeletal muscles are primarily characterized by their mechanical activity required for posture, movement, and breathing, which depends on muscle fiber contractions. However, skeletal muscle is not just a component in our locomotor system. Recent evidence has identified skeletal muscle as a secretory organ. We have suggested that cytokines and other peptides that are produced, expressed, and released by muscle fibers and exert either autocrine, paracrine, or endocrine effects should be classified as "myokines." The muscle secretome consists of several hundred secreted peptides. This finding provides a conceptual basis and a whole new paradigm for understanding how muscles communicate with other organs such as adipose tissue, liver, pancreas, bones, and brain. In addition, several myokines exert their effects within the muscle itself. Many proteins produced by skeletal muscle are dependent upon contraction. Therefore, it is likely that myokines may contribute in the mediation of the health benefits of exercise.

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Registry

Crossref · 10.1002/cphy.c120033

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260 of 260 references verified0 citation errors · 0 not checkable

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Authors
Pedersen, B. K.
Affiliations
University of Copenhagen (DK)
Corresponding author
Pedersen, Bente K.
Venue
Comprehensive physiology
Publisher
Wiley
Published
2013-07
Volume
3
Issue
3
Pages
1337-1362
ISSN
2040-4603 (ISSN-L)
OpenAlex
W1851866395
Cited by
516
References
260
Citations by year
2026: 7 · 2025: 24 · 2024: 42 · 2023: 40 · 2022: 55 · 2021: 48 · 2020: 61 · 2019: 53 · 2018: 50 · 2017: 30 · 2016: 39 · 2015: 39 · 2014: 25 · 2013: 1 · 2012: 1
Type
other
Language
en
Open access
closed
Locations
  • Comprehensive physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
skeletal muscle, myokines, cytokines, paracrine signaling, hormone signaling, autocrine signaling, muscle contraction, inter-organ communication
MeSH terms
Animals, Humans, Muscle Contraction, Exercise, Interleukin-6, Cytokines, Muscle, Skeletal, Muscle Fibers, Skeletal, Brain-Derived Neurotrophic Factor, Adipokines

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