Cited by 49Adipokines, Inflammation, and Metabolic DiseasesRegulation of Appetite and ObesityNeuroinflammation and Neurodegeneration Mechanisms

Interleukin-17 as a key player in neuroimmunometabolism

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Douglas, Aaron, Stevens, Brenneth, Lynch, Lydia·2023·Nature Metabolism

Abstract

In mammals, interleukin (IL)-17 cytokines are produced by innate and adaptive lymphocytes. However, the IL-17 family has widespread expression throughout evolution, dating as far back as cnidaria, molluscs and worms, which predate lymphocytes. The evolutionary conservation of IL-17 suggests that it is involved in innate defence strategies, but also that this cytokine family has a fundamental role beyond typical host defence. Throughout evolution, IL-17 seems to have a major function in homeostatic maintenance at barrier sites. Most recently, a pivotal role has been identified for IL-17 in regulating cellular metabolism, neuroimmunology and tissue physiology, particularly in adipose tissue. Here we review the emerging role of IL-17 signalling in regulating metabolic processes, which may shine a light on the evolutionary role of IL-17 beyond typical immune responses. We propose that IL-17 helps to coordinate the cross-talk among the nervous, endocrine and immune systems for whole-body energy homeostasis as a key player in neuroimmunometabolism.

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  • Emerging evidence underscores the neuroimmune role of Treg cells and TH17 cells in the gut-brain axis, extending to neuropathological conditions such as AD.

    “Emerging evidence has underscored the neuroimmune role of Treg cells and TH17 cells in the gut–brain axis, extending to neuropathological conditions such as AD, suggesting potential areas for future research.621,622”

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  1. [113]Yu Y, Cao Y, Felder RB & Wei S-G Knockdown of interleukin 17 receptor A (IL-17RA) in paraventricular nucleus of hypothalamus attenuates IL-17-induced pressor responses and sympathetic excitation. FASEB J. 34, 1 (2020).

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Authors
Douglas, A., Stevens, B., & Lynch, L.
Affiliations
  • Trinity College Dublin (IE)
  • Brigham and Women's Hospital (US)
Corresponding author
Lynch, Lydia
Venue
Nature Metabolism
Published
2023-07-20
Volume
5
Issue
7
Pages
1088-1100
ISSN
2522-5812 (ISSN-L)
OpenAlex
W4384934670
Cited by
49
References
156
Citations by year
2026: 13 · 2025: 14 · 2024: 20 · 2023: 2
FWCI
1.92
Type
journal article
Language
en
Open access
Locations
  • Nature Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Diabetes Association (1-16-JDF-061)
  • Division of Intramural Research, National Institute of Allergy and Infectious Diseases (R01AI134861)
  • Irish Research Council
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
IL-17, energy homeostasis, IL-17 signaling, evolutionary conservation, innate immunity, adipose tissue metabolism, host defense
MeSH terms
Adipose Tissue, Animals, Immunity, Innate, Lymphocytes, Mammals, Cytokines, Interleukin-17

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