Cited by 154Cytokine Signaling Pathways and InteractionsExercise and Physiological ResponsesAdipokines, Inflammation, and Metabolic Diseases

Role of Interleukin-6 in Vascular Health and Disease

Open access
Villar-Fincheira, Paulina, Sanhueza-Olivares, Fernanda, Norambuena-Soto, Ignacio, Cancino-Arenas, Nicole, Hernandez-Vargas, Felipe, Troncoso, Rodrigo, Gabrielli, Luigi, Chiong, Mario·2021·Frontiers in Molecular Biosciences

Abstract

IL-6 is usually described as a pleiotropic cytokine produced in response to tissue injury or infection. As a pro-inflammatory cytokine, IL-6 activates innate and adaptative immune responses. IL-6 is released in the innate immune response by leukocytes as well as stromal cells upon pattern recognition receptor activation. IL-6 then recruits immune cells and triggers B and T cell response. Dysregulated IL-6 activity is associated with pathologies involving chronic inflammation and autoimmunity, including atherosclerosis. However, IL-6 is also produced and released under beneficial conditions, such as exercise, where IL-6 is associated with the anti-inflammatory and metabolic effects coupled with physical adaptation to intense training. Exercise-associated IL-6 acts on adipose tissue to induce lipogenesis and on arteries to induce adaptative vascular remodeling. These divergent actions could be explained by complex signaling networks. Classical IL-6 signaling involves a membrane-bound IL-6 receptor and glycoprotein 130 (gp130), while trans-signaling relies on a soluble version of IL-6R (sIL-6R) and membrane-bound gp130. Trans-signaling, but not the classical pathway, is regulated by soluble gp130. In this review, we discuss the similarities and differences in IL-6 cytokine and myokine signaling to explain the differential and opposite effects of this protein during inflammation and exercise, with a special focus on the vascular system.

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  1. Croisier J. L. Camus G. Venneman I. Deby-Dupont G. Juchmes-Ferir A. Lamy M. (1999). Effects of training on exercise-induced muscle damage and interleukin 6 production. Muscle Nerve 22, 208– 212. 10.1002/(sici)1097-459810.1002/(sici)1097-4598(199902)22:2<208:aid-mus8>3.0.co;2-b 10024133 · DOI

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Authors
Villar-Fincheira, P., Sanhueza-Olivares, F., Norambuena-Soto, I., Cancino-Arenas, N., Hernandez-Vargas, F., Troncoso, R., Gabrielli, L., & Chiong, M.
Affiliations
  • Advanced Center for Chronic Diseases (CL)
  • University of Chile (CL)
  • Pontificia Universidad Católica de Chile (CL)
Corresponding author
  • Gabrielli, Luigi
  • Chiong, Mario
Venue
Frontiers in Molecular Biosciences
Published
2021-03-16
Volume
8
Pages
641734-641734
ISSN
2296-889X (ISSN-L)
OpenAlex
W3139260880
Cited by
154
References
154
Citations by year
2026: 20 · 2025: 39 · 2024: 32 · 2023: 35 · 2022: 19 · 2021: 9
FWCI
2.88
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Molecular Biosciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Universidad de Chile (submittedVersion, cc-by-nc-nd)
Funders
Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias (1170963, 15130011)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
interleukin-6, vascular health, vascular disease, atherosclerosis, chronic inflammation, autoimmunity, physical activity, myokines, IL-6 signaling, trans-signaling, soluble IL-6 receptor, gp130, adipose tissue lipogenesis, vascular remodeling, innate and adaptive immunity

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