Critical regulation of Th17 cell differentiation by serum amyloid-A signalling in Behcet's disease
Copyright © 2018 European Federation of Immunological Societies. Published by Elsevier B.V. All rights reserved..
The current understandings on cellular and molecular biology suggest that Th17 axis plays a pivotal role in Behcet's disease (BD) pathogenesis. Recently the role of serum amyloid-A (SAA) as a potential marker of disease activity in BD patients has been explored, and it has been reported that the occurrence of specific clinical features are significantly associated with high serum levels of this inflammatory mediator. The aim of this study was to investigate the cytokine-like activity of SAA in inducing Th17 differentiation from CD4 + T naive cells in BD. Purified peripheral monocytes from BD and healthy control (HC) were stimulated with SAA "in vitro", and secreted IL-8, TNF-α, IL-18, IFN-α, IFN-γ, IL-1β and IL-6 were measured using a Bio-Rad multiplex cytokine immunoassay. To assess Th17 differentiation, purified CD4 + T cells were challenged with anti-CD3/CD28 antibodies, while cultured with supernatant derived from SAA stimulated monocytes, and intracellular staining of IL-17A and IFN-γ was evaluated by flow-cytometry. Furthermore, peripheral blood mononuclear cells (PBMCs) were stimulated with SAA and transcript levels of RAR-related orphan nuclear receptor (ROR)-γt and IL-17A were assessed by Real-time PCR. Upon stimulation with SAA, monocytes obtained from both HC and BD groups released large amounts of IL-8, IL-6, TNF-α, IL-1β and IFN-α. Monocytes-derived supernatants from BD patients, but not HC, were capable of promoting Th17 but not Th1 differentiation from CD4 + T cells. However, SAA did not induce up-regulation of Th17 specific mRNA transcript such as IL-17A and (ROR)-γt in PBMCs from both HC and BD. In BD patients SAA induced Th17 polarization rather than Th1 differentiation from CD4 + T cells. These data suggest that a critical regulation of Th17 may be the functional link between acute SAA increase and the induction of Th17 mediated inflammatory response in BD.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:201 |
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| Enthalten in: |
Immunology letters - 201(2018) vom: 15. Sept., Seite 38-44 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lucherini, Orso Maria [VerfasserIn] |
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| Links: |
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| Themen: |
Behcet’s disease |
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| Anmerkungen: |
Date Completed 30.07.2019 Date Revised 30.07.2019 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.imlet.2018.10.013 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM290187346 |
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| 520 | |a Copyright © 2018 European Federation of Immunological Societies. Published by Elsevier B.V. All rights reserved. | ||
| 520 | |a The current understandings on cellular and molecular biology suggest that Th17 axis plays a pivotal role in Behcet's disease (BD) pathogenesis. Recently the role of serum amyloid-A (SAA) as a potential marker of disease activity in BD patients has been explored, and it has been reported that the occurrence of specific clinical features are significantly associated with high serum levels of this inflammatory mediator. The aim of this study was to investigate the cytokine-like activity of SAA in inducing Th17 differentiation from CD4 + T naive cells in BD. Purified peripheral monocytes from BD and healthy control (HC) were stimulated with SAA "in vitro", and secreted IL-8, TNF-α, IL-18, IFN-α, IFN-γ, IL-1β and IL-6 were measured using a Bio-Rad multiplex cytokine immunoassay. To assess Th17 differentiation, purified CD4 + T cells were challenged with anti-CD3/CD28 antibodies, while cultured with supernatant derived from SAA stimulated monocytes, and intracellular staining of IL-17A and IFN-γ was evaluated by flow-cytometry. Furthermore, peripheral blood mononuclear cells (PBMCs) were stimulated with SAA and transcript levels of RAR-related orphan nuclear receptor (ROR)-γt and IL-17A were assessed by Real-time PCR. Upon stimulation with SAA, monocytes obtained from both HC and BD groups released large amounts of IL-8, IL-6, TNF-α, IL-1β and IFN-α. Monocytes-derived supernatants from BD patients, but not HC, were capable of promoting Th17 but not Th1 differentiation from CD4 + T cells. However, SAA did not induce up-regulation of Th17 specific mRNA transcript such as IL-17A and (ROR)-γt in PBMCs from both HC and BD. In BD patients SAA induced Th17 polarization rather than Th1 differentiation from CD4 + T cells. These data suggest that a critical regulation of Th17 may be the functional link between acute SAA increase and the induction of Th17 mediated inflammatory response in BD | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Behcet’s disease | |
| 650 | 4 | |a IL-17A | |
| 650 | 4 | |a Monocyte | |
| 650 | 4 | |a Serum amyloid-A | |
| 650 | 4 | |a Th17 cell | |
| 650 | 7 | |a Biomarkers |2 NLM | |
| 650 | 7 | |a Blood Proteins |2 NLM | |
| 650 | 7 | |a Cytokines |2 NLM | |
| 650 | 7 | |a Inflammation Mediators |2 NLM | |
| 650 | 7 | |a Serum Amyloid A Protein |2 NLM | |
| 700 | 1 | |a Lopalco, Giuseppe |e verfasserin |4 aut | |
| 700 | 1 | |a Cantarini, Luca |e verfasserin |4 aut | |
| 700 | 1 | |a Emmi, Giacomo |e verfasserin |4 aut | |
| 700 | 1 | |a Lopalco, Antonio |e verfasserin |4 aut | |
| 700 | 1 | |a Venerito, Vincenzo |e verfasserin |4 aut | |
| 700 | 1 | |a Vitale, Antonio |e verfasserin |4 aut | |
| 700 | 1 | |a Iannone, Florenzo |e verfasserin |4 aut | |
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