Cited by 767Adipokines, Inflammation, and Metabolic DiseasesLipid metabolism and biosynthesisAdipose Tissue and Metabolism

Interleukin-6 stimulates lipolysis and fat oxidation in humans

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van Hall, Gerrit, Steensberg, Adam, Sacchetti, Massimo, Fischer, Christian, Keller, Charlotte, Schjerling, Peter, Hiscock, Natalie, Møller, Kirsten +3 more·2003·The Journal of Clinical Endocrinology & Metabolism

Abstract

Although IL-6 is a key modulator of immune function, it also plays a role in regulating substrate metabolism. To determine whether IL-6 affects lipid metabolism, 18 healthy men were infused for 3 h with saline (Con; n = 6) or a high dose (High-rhIL6; n = 6) or a low dose (Low-rhIL6; n = 6) of recombinant human IL-6 (rhIL-6). The IL-6 concentration during Con, Low-rhIL6, and High-rhIL6 was at a steady state after 30 min of infusion at approximately 4, 140, and 320 pg/ml, respectively. Either dose of rhIL-6 was associated with a similar increase in fatty acid (FA) concentration and endogenous FA rate of appearance (R(a)) from 90 min after the start of the infusion. The FA concentration and FA R(a) continued to increase until the cessation of rhIL-6 infusion, reaching levels approximately 50% greater than Con values. The elevated levels reached at the end of rhIL-6 infusion persisted at least 3 h postinfusion. Triacylglycerol concentrations were unchanged during rhIL-6 infusion, whereas whole body fat oxidation increased after the second hour of rhIL-6 infusion. Of note, during Low-rhIL6, the induced elevation in FA concentration and FA R(a) occurred in the absence of any change in adrenaline, insulin, or glucagon, and no adverse side effects were observed. In conclusion, the data identify IL-6 as a potent modulator of fat metabolism in humans, increasing fat oxidation and FA reesterification without causing hypertriacylglyceridemia.

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Crossref · 10.1210/jc.2002-021687

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Authors
van Hall, G., Steensberg, A., Sacchetti, M., Fischer, C., Keller, C., Schjerling, P., Hiscock, N., Møller, K., Saltin, B., Febbraio, M. A., & Pedersen, B. K.
Affiliations
University of Copenhagen (DK)
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2003-07
Volume
88
Issue
7
Pages
3005-3010
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2112857693
Cited by
767
References
20
Citations by year
2026: 23 · 2025: 38 · 2024: 54 · 2023: 37 · 2022: 47 · 2021: 35 · 2020: 39 · 2019: 23 · 2018: 23 · 2017: 23 · 2016: 30 · 2015: 31 · 2014: 30 · 2013: 38 · 2012: 35
FWCI
23.26
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • RMIT Research Repository (RMIT University Library) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • Sundhed og Sygdom, Det Frie Forskningsråd
  • Danmarks Grundforskningsfond (504–14)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
interleukin-6, lipolysis, fat oxidation, fatty acid content, triglycerides, lipid metabolism, substrate metabolism, hypertriglyceridemia
MeSH terms
Adult, Energy Metabolism, Epinephrine, Fatty Acids, Glucagon, Glycerol, Humans, Hydrocortisone, Insulin, Lipolysis, Male, Norepinephrine, Oxidation-Reduction, Oxygen Consumption, Recombinant Proteins, Triglycerides, Interleukin-6

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