Cited by 20Advanced Glycation End Products researchImmune Response and InflammationS100 Proteins and Annexins

cAMP ameliorates inflammation by modulation of macrophage receptor for advanced glycation end-products

Motoyoshi, So, Yamamoto, Yasuhiko, Munesue, Seiichi, Igawa, Hirobumi, Harashima, Ai, Saito, Hidehito, Han, Dong, Watanabe, Takuo +2 more·2014·Biochemical Journal

Abstract

Clarification of the roles of PAMPs (pathogen-associated molecular patterns) and DAMPs (damage-associated molecular patterns) is indispensable for therapeutic strategies against various inflammatory diseases. RAGE (receptor for advanced glycation end-products) is one of the PRRs (pattern recognition receptors) and has been implicated in autoimmune and inflammatory diseases. Effective remedies targeting RAGE are required for the diseases. In the present study, we show that cAMP-induced modulation of the RAGE isoform in macrophages can control the inflammatory state in both in vitro and in vivo experimental conditions. The RAGE ligand S100B stimulated MCP-1 (monocyte chemoattractant protein-1) secretion from peritoneal macrophages, but cAMP elevation suppressed it by converting the RAGE isoform from a membrane-bound into a soluble form. This shedding is the result of ectodomain cleavage of mRAGE (membrane-bound RAGE) by MMP9 (matrix metalloproteinase 9). Furthermore, forskolin significantly inhibited peritoneal macrophage accumulation in a mouse S100B-induced peritonitis model. These results suggest that cAMP serves as a negative regulator of ligand–RAGE signalling and macrophage recruitment by mRAGE down-regulation and formation of decoys as soluble receptors. The present study should deepen our understanding of the pathogenesis of RAGE-mediated tissue derangement and provide new clues for overcoming RAGE-related inflammatory diseases.

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Crossref · 10.1042/bj20140084

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Authors
Motoyoshi, S., Yamamoto, Y., Munesue, S., Igawa, H., Harashima, A., Saito, H., Han, D., Watanabe, T., Sato, H., & Yamamoto, H.
Affiliations
Kanazawa University (JP)
Corresponding author
  • Motoyoshi, So
  • Yamamoto, Yasuhiko
  • Munesue, Seiichi
  • Igawa, Hirobumi
  • Harashima, Ai
  • Saito, Hidehito
  • Han, Dong
  • Watanabe, Takuo
  • Yamamoto, Hiroshi
Venue
Biochemical Journal
Published
2014-09-08
Volume
463
Issue
1
Pages
75-82
ISSN
  • 0264-6021 (ISSN-L)
  • 1470-8728
OpenAlex
W1966518454
Cited by
20
References
48
Citations by year
2026: 1 · 2025: 1 · 2022: 3 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 1 · 2016: 2 · 2015: 3
FWCI
1.15
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (26450152, 25461335, 26860187, 24590375)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › S100 Proteins and Annexins
Keywords
cyclic AMP, receptor for advanced glycation end products, RAGE, macrophages, S100B, soluble RAGE, MMP-9, ectodomain shedding, MCP-1, peritonitis, inflammation, pattern recognition receptors, forskolin
MeSH terms
Receptor for Advanced Glycation End Products, Cyclic AMP, Animals, Inflammation, Receptors, Immunologic, Signal Transduction, Protein Structure, Tertiary, Macrophages, Peritoneal, Mice, Knockout, Chemokine CCL2, Matrix Metalloproteinase 9, Mice, Proteolysis, S100 Calcium Binding Protein beta Subunit

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