Cited by 113Adipokines, Inflammation, and Metabolic DiseasesNitric Oxide and Endothelin EffectsChemokine receptors and signaling

Chemerin Regulates Crosstalk Between Adipocytes and Vascular Cells Through Nox

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Neves, Karla Bianca, Nguyen Dinh Cat, Aurelie, Lopes, Rheure Alves Moreira, Rios, Francisco Jose, Anagnostopoulou, Aikaterini, Lobato, Nubia Souza, de Oliveira, Ana Maria, Tostes, Rita C. +2 more·2015·Hypertension

Abstract

Adipocytes produce adipokines, including chemerin, a chemoattractant that mediates effects through its ChemR23 receptor. Chemerin has been linked to endothelial dysfunction and vascular injury in pathological conditions, such as obesity, diabetes mellitus, and hypertension. Molecular mechanisms underlying this are elusive. Here we assessed whether chemerin through redox-sensitive signaling influences molecular processes associated with vascular growth, apoptosis, and inflammation. Human microvascular endothelial cells and vascular smooth muscle cells were stimulated with chemerin (50 ng/mL). Chemerin increased generation of reactive oxygen species and phosphorylation of mitogen-activated protein kinases, effects that were inhibited by ML171, GKT137831 (Nox inhibitors), and N-acetylcysteine (reactive oxygen species scavenger). Chemerin increased mRNA expression of proinflammatory mediators in vascular cells and increased monocyte-to-endothelial cell attachment. In human vascular smooth muscle cells, chemerin induced phosphorylation of mitogen-activated protein kinases and stimulated proliferation (increased proliferating cell nuclear antigen expression [proliferation marker] and BrdU incorporation [proliferation assay]). Chemerin decreased phosphatidylinositol 3-kinase/protein kinase B activation and increased TUNEL-positive human vascular smooth muscle cells. In human microvascular endothelial cells, chemerin reduced endothelial nitric oxide synthase activity and nitric oxide production. Adipocyte-conditioned medium from obese/diabetic mice (db/db), which have elevated chemerin levels, increased reactive oxygen species generation in vascular smooth muscle cells, whereas adipocyte-conditioned medium from control mice had no effect. Chemerin actions were blocked by CCX 832, a ChemR23 inhibitor. Our data demonstrate that chemerin, through Nox activation and redox-sensitive mitogen-activated protein kinases signaling, exerts proapoptotic, proinflammatory, and proliferative effects in human vascular cells. These findings elucidate some molecular mechanisms through chemerin, which is increased in obesity, whereby adipocytes may influence vascular function. We identify chemerin as a novel vasoactive adipokine, which may be important in obesity-related vascular injury.

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Crossref · 10.1161/hypertensionaha.115.05616

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  • Chemerin is chemotactic for M1-like macrophages, exerts pro-inflammatory effects, and increases reactive oxygen species production in vascular cells.

    “Chemerin is a chemotactic molecule for M1-like macrophages114, exerts pro-inflammatory effects and increases the production of reactive oxygen species in vascular cells120.”

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  1. [3]3. Fonseca-Alaniz MH, Takada J, Alonso-Vale MI, Lima FB. [The adipose tissue as a regulatory center of the metabolism]. Arq Bras Endocrinol Metabol . 2006;50:216-229. doi: /S0004-27302006000200008.

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Authors
Neves, K. B., Nguyen Dinh Cat, A., Lopes, R. A. M., Rios, F. J., Anagnostopoulou, A., Lobato, N. S., de Oliveira, A. M., Tostes, R. C., Montezano, A. C., & Touyz, R. M.
Affiliations
  • Universidade de São Paulo (BR)
  • From the Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, College of Medicine, Veterinary and Life Sciences, University of Glasgow (K.B.N., A.N.D.C., R.A.M.L., F.J.R., A.A., A.C.M., R.M.T.); Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirao Preto (K.B.N., A.M.d.O.) and Department of Pharmacology (R.A.M.L., R.C.T.), University of Sao Paulo, Ribeirao Preto, SP, Brazil; and Department of Biological Sciences, Federal...
Corresponding author
Touyz, Rhian M.
Venue
Hypertension
Published
2015-09
Volume
66
Issue
3
Pages
657-666
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W2152629111
Cited by
113
References
51
Citations by year
2026: 8 · 2025: 7 · 2024: 10 · 2023: 9 · 2022: 9 · 2021: 8 · 2020: 8 · 2019: 16 · 2018: 12 · 2017: 14 · 2016: 8 · 2015: 4
FWCI
9.97
Type
journal article
Language
en
Open access
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
  • Strathprints: The University of Strathclyde institutional repository (University of Strathclyde) (submittedVersion)
Funders
  • British Heart Foundation (29762, RG/13/7/30099, 30099)
  • National Institutes of Health
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
Keywords
chemerin, NADPH oxidase, adipocytes, vascular smooth muscle cells, microvascular endothelial cells, reactive oxygen species, MAPK signaling, apoptosis, inflammation, cell proliferation, endothelial nitric oxide synthase, nitric oxide, adipokines, obesity, vascular injury, type 2 diabetes
MeSH terms
Cell Communication, Endothelium, Vascular, Humans, Muscle, Smooth, Vascular, Phosphorylation, Apoptosis, Reactive Oxygen Species, Adipocytes, Chemokines, Myocytes, Smooth Muscle, Intercellular Signaling Peptides and Proteins, Endothelial Cells, Caspase 3

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