Cited by 267Adipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and MetabolismMuscle Physiology and Disorders

Oversecretion of interleukin-15 from skeletal muscle reduces adiposity

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Quinn, LeBris S., Anderson, Barbara G., Strait-Bodey, Lena, Stroud, Ashley M., Argilés, Josép M.·2009·American Journal of Physiology-Endocrinology and Metabolism

Abstract

Obesity is a risk factor for development of insulin resistance, type 2 diabetes, cardiovascular disease, osteoarthritis, and some forms of cancer. Many of the adverse health consequences of excess fat deposition are caused by increased secretion of proinflammatory adipokines by adipose tissue. Reciprocal muscle-to-fat signaling factors, or myokines, are starting to be identified. Interleukin-15 (IL-15) is a cytokine that is highly expressed in muscle tissue and that, on the basis of cell culture experiments, has been proposed to act as a circulating myokine that inhibits adipose tissue deposition. To test this hypothesis in vivo, two lines of transgenic mice that overexpressed IL-15 mRNA and protein in skeletal muscle tissue were constructed. By substitution of the inefficient native IL-15 signal peptide with a more efficient signal peptide, one of the transgenic mouse lines also exhibited elevated secretion of IL-15 in the circulation. Overexpression of IL-15 in muscle tissue without secretion in the bloodstream resulted in no differences in body composition. Elevated circulating levels of IL-15 resulted in significant reductions in body fat and increased bone mineral content, without appreciably affecting lean body mass or levels of other cytokines. Elevated circulating levels of IL-15 also inhibited adiposity induced by consumption of a high-fat/high-energy diet in male, but not female, transgenic mice. Female mice with elevated serum IL-15 exhibited increased deposition of lean body mass on a low-fat/low-energy diet and a high-fat/high-energy diet. These findings indicate that muscle-derived circulating IL-15 can modulate adipose tissue deposition and support addition of IL-15 to the growing list of potential myokines that are increasingly being implicated in regulation of body composition.

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Registry

Crossref · 10.1152/ajpendo.90506.2008

Cites

78 of 78 references verified0 citation errors · 0 not checkable

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  • In a murine model overexpressing IL-15, the percentage of visceral fat mass measured by DEXA was approximately half compared with controls.

    “as exemplified in a murine model overexpressing IL-15 in which the percentage of visceral fat mass, measured by DEXA, was approximately half when compared with controls [88].”

    From The Role of Exercise in the Interplay between Myokines, Hepatokines, Osteokines, Adipokines, and Modulation of Inflammation for Energy Substrate Redistribution and Fat Mass Loss: A Review (2020) · cites this paper as [88]

    The Results (page unavailable) report that DEXA-measured percentage body fat was lower in IL-15-secreting transgenic mice, and total fat mass was approximately 50% lower in males than in controls. They do not report that DEXA-measured visceral fat mass was halved; a separate Results passage says visceral fat cell area was approximately half that of controls in males. (LLM, conf=0.91)

    Experimental — accuracy not yet measured
  • Interleukin-15 exerts local anabolic/anti-catabolic effects and increases glucose uptake, thus inhibiting lipid deposition.

    “Interleukin-15 exerts local anabolic/anti-catabolic effects [10] and increases glucose uptake, thus inhibiting lipid deposition [10, 11].”

    From β-hydroxy-β -methylbutyrate supplementation benefits the effects of resistance training on body fat reduction via increased irisin expression in white adipose tissue (2021) · cites this paper as [11]

    The Abstract reports anti-atrophic effects in muscle, increased glucose uptake, and reduced fat deposition. It does not establish that increased glucose uptake causes the reduction in lipid deposition; the Discussion says the mechanism remains to be explored and suggests a possible direct effect on adipose tissue. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • IL-15 overexpression is related to reduced adiposity.

    “The ability of IL-15 to act on muscle- adipose tissue crosstalk was investigated by the same group, showing IL-15 overexpression in relation to reduced adiposity.”

    From Physical Exercise-Induced Myokines and Muscle-Adipose Tissue Crosstalk: A Review of Current Knowledge and the Implications for Health and Metabolic Diseases (2018) · cites this paper as Quinn et al., 2009

    The Abstract reports reduced body fat in mice with elevated circulating IL-15, supporting the link to reduced adiposity. It also reports that IL-15 overexpression in muscle without increased secretion produced no difference in body composition; the citing sentence omits that important condition. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • In transgenic animals overexpressing IL-15 in skeletal muscle, only the group with increased levels of IL-15 from muscle in circulation had a reduction in adiposity, due to greater targeting of substrate for energy generation.

    “Only the group that had the increased levels of IL-15 from the muscle in circulation had a reduction in adiposity due to the greater targeting of this substrate for energy generation (Quinn et al., 2009).”

    From Physical Exercise-Induced Myokines and Muscle-Adipose Tissue Crosstalk: A Review of Current Knowledge and the Implications for Health and Metabolic Diseases (2018) · cites this paper as Quinn et al., 2009

    The Abstract and Discussion report that only the transgenic mouse line with elevated circulating muscle-derived IL-15 had reduced adiposity. They do not establish that the reduction was due to greater targeting of substrate for energy generation; the Discussion instead proposes a direct endocrine effect on adipose tissue. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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Cites

2 retracted

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Research works printed but not linked: 2

  1. [22]Gosset M, Berenbaum F, Salat C, Sautet A, Pigenet A, Tahiri K, Jacques C. Crucial role of visfatin/pre-B cell colony-enhancing factor in matrix degradation and prostaglandin E2 synthesis in chrondrocytes. Arthr Rheum 58: 1399–1409, 2008. [DOI] [PubMed] [Google Scholar]
  2. [40]Lollini PL, Palmieri G, De Giovanni C, Landuzzi L, Nicoletti G, Rossi I, Griffoni C, Frabetti F, Scotland K, Benini S, Baldini N, Santoni A, Nanni P. Expression of interleukin 15 (IL-15) in human rhabdomyosarcoma, osteosarcoma and Ewing's sarcoma. Intl J Cancer 71: 732–736, 1997. [DOI] [PubMed] [Google Scholar]

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Sorted by citations

Authors
Quinn, L. S., Anderson, B. G., Strait-Bodey, L., Stroud, A. M., & Argilés, J. M.
Affiliations
VA Puget Sound Health Care System (US)
Venue
American Journal of Physiology-Endocrinology and Metabolism
Published
2009-01
Volume
296
Issue
1
Pages
E191-E202
ISSN
  • 0193-1849 (ISSN-L)
  • 1522-1555
OpenAlex
W2167204431
Cited by
267
References
78
Citations by year
2026: 9 · 2025: 11 · 2024: 10 · 2023: 12 · 2022: 21 · 2021: 18 · 2020: 16 · 2019: 16 · 2018: 24 · 2017: 21 · 2016: 14 · 2015: 21 · 2014: 16 · 2013: 16 · 2012: 21
FWCI
5.20
Type
journal article
Language
en
Open access
Locations
  • American Journal of Physiology-Endocrinology and Metabolism (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (R01AG024136, P30AG013280)
  • National Institute of Diabetes and Digestive and Kidney Diseases (5-P30-DK-17047, P30DK017047)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
IL-15, myokines, skeletal muscle, adiposity, fat deposition, transgenic mice, bone mineral content, high-fat diet, sex differences, body composition, obesity
MeSH terms
Animals, Body Composition, Crosses, Genetic, Dietary Fats, Female, Male, Mice, Inbred C3H, Mice, Inbred C57BL, Mice, Transgenic, RNA, Messenger, Specific Pathogen-Free Organisms, Muscle, Skeletal, Interleukin-15, Reverse Transcriptase Polymerase Chain Reaction, Adiposity, Mice

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