Cited by 295Exercise and Physiological ResponsesAdipokines, Inflammation, and Metabolic DiseasesCytokine Signaling Pathways and Interactions

Interleukin 6 as an Energy Allocator in Muscle Tissue

Kistner, Timothy M., Pedersen, Bente K., Lieberman, Daniel E.·2022·Nature Metabolism

Abstract

Extensive research has shown that interleukin 6 (IL-6) is a multifunctional molecule that is both proinflammatory and anti-inflammatory, depending on the context. Here, we combine an evolutionary perspective with physiological data to propose that IL-6's context-dependent effects on metabolism reflect its adaptive role for short-term energy allocation. This energy-allocation role is especially salient during physical activity, when skeletal muscle releases large amounts of IL-6. We predict that during bouts of physical activity, myokine IL-6 fulfills the three main characteristics of a short-term energy allocator: it is secreted from muscle in response to an energy deficit, it liberates somatic energy through lipolysis and it enhances muscular energy uptake and transiently downregulates immune function. We then extend this model of energy allocation beyond myokine IL-6 to reinterpret the roles that IL-6 plays in chronic inflammation, as well as during COVID-19-associated hyperinflammation and multiorgan failure.

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Crossref · 10.1038/s42255-022-00538-4

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149 of 149 references verified0 citation errors · 0 not checkable

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Authors
Kistner, T. M., Pedersen, B. K., & Lieberman, D. E.
Affiliations
  • Harvard University (US)
  • University of Copenhagen (DK)
Corresponding author
  • Kistner, Timothy M.
  • Pedersen, Bente K.
  • Lieberman, Daniel E.
Venue
Nature Metabolism
Published
2022-02-24
Volume
4
Issue
2
Pages
170-179
ISSN
2522-5812 (ISSN-L)
OpenAlex
W4213414654
Cited by
295
References
149
Citations by year
2026: 54 · 2025: 87 · 2024: 68 · 2023: 56 · 2022: 30
FWCI
7.14
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
interleukin-6, myokines, energy allocation, skeletal muscle, physical activity, lipolysis, energy metabolism, chronic inflammation, multiple organ failure, evolutionary perspective
MeSH terms
COVID-19, SARS-CoV-2, Humans, Exercise, Interleukin-6, Muscle, Skeletal

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