Cited by 33Immune Response and InflammationComplement system in diseasesImmunotherapy and Immune Responses

Crosstalk between Toll like receptors and C5a receptor in human monocyte derived DCs suppress inflammatory cytokine production

Zaal, Anouk, Lissenberg-Thunnissen, Suzanne N., van Schijndel, Gijs, Wouters, Diana, Ham, S. Marieke van, ten Brinke, Anja·2013·Immunobiology

Abstract

The complement anaphylatoxin, C5a has been implicated in regulation of adaptive immune responses through modulation of APC function as shown mainly in studies in mice. C5a was shown to enhance cytokine production in immature DCs, but the effect of C5a on DC function during DC activation has not been elucidated in human. In this study we investigated the effect of C5a on human monocyte derived DCs when simultaneously stimulated with TLR ligands. While C5a indeed enhanced cytokine production of immature DCs, the addition of C5a inhibited production of IL-12, IL-23 and TNFα induced by various TLR ligands such as LPS, R848 and Pam(3)CSK(4). The inhibitory effect of C5a on LPS induced IL-6 production was less pronounced and LPS induced IL-10 was not affected at all. This indicates that C5aR signaling has a differential effect on human DC differentiation depending on the crosstalk with other receptors. Furthermore we found that C5a affects the LPS induced cytokines in a small time frame, and requires almost concurrent signaling of C5a receptor and TLR4. These data emphasize the complexity of DC regulation by anaphylatoxins. While complement activation may provide proinflammatory signals to immature DCs in the absence of pathogens, the same products may serve to downmodulate or deviate immune responses upon combat against infections. These context depending effects of anaphylatoxins on immune responses may have important implications for the emerging use of complement inhibitors in…

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Crossref · 10.1016/j.imbio.2012.02.014

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Authors
Zaal, A., Lissenberg-Thunnissen, S. N., van Schijndel, G., Wouters, D., Ham, S. M. V., & ten Brinke, A.
Affiliations
Amsterdam UMC Location University of Amsterdam (NL)
Venue
Immunobiology
Publisher
Elsevier BV
Published
2013-02
Volume
218
Issue
2
Pages
175-180
ISSN
0171-2985 (ISSN-L)
OpenAlex
W2086302783
Cited by
33
References
27
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 1 · 2021: 1 · 2019: 4 · 2018: 3 · 2017: 6 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 3
FWCI
1.25
Type
journal article
Language
en
Open access
closed
Locations
  • Immunobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Complement system in diseases
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
C5a receptor, anaphylatoxins, Toll-like receptors, monocyte-derived dendritic cells, cytokine production, IL-12, IL-23, TNF-α, interleukin-6, IL-10, TLR4, lipopolysaccharide, R848, Pam3CSK4, complement inhibition, immune regulation
MeSH terms
Cell Differentiation, Cells, Cultured, Dendritic Cells, Humans, Imidazoles, Immune Tolerance, Lipopolysaccharides, Monocytes, Receptors, Complement, Signal Transduction, Cytokines, Inflammation Mediators, Receptor Cross-Talk, Receptor, Anaphylatoxin C5a, Toll-Like Receptor 4, Lipopeptides

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