Negative impact of Interleukin-9 on synovial regulatory T cells in rheumatoid arthritis

Copyright © 2023 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 257(2023) vom: 31. Dez., Seite 109814
1. Verfasser: Chakraborty, Sushmita (VerfasserIn)
Weitere Verfasser: Gupta, Ranjan, Kubatzky, Katharina F, Kar, Santanu, Kraus, Franziska V, Souto-Carneiro, M Margarida, Lorenz, Hanns-Martin, Kumar, Pankaj, Kumar, Vijay, Mitra, Dipendra Kumar
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Inflammatory cytokines Interleukin −9 Regulatory T cells Rheumatoid arthritis Synovial fluid Cytokines Interleukin-9
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520 |a In Rheumatoid Arthritis (RA), regulatory T cells (Tregs) have been found to be enriched in the synovial fluid. Despite their accumulation, they are unable to suppress synovial inflammation. Recently, we showed the synovial enrichment of interleukin-9 (IL-9) producing helper T cells and its positive correlation with disease activity. Therefore, we investigated the impact of IL-9 on synovial Tregs in RA. Here, we confirmed high synovial Tregs in RA patients, however these cells were functionally impaired in terms of suppressive cytokine production (IL-10 and TGF-β). Abrogating IL-9/ IL-9 receptor interaction could restore the suppressive cytokine production of synovial Tregs and reduce the synovial inflammatory T cells producing IFN-γ, TNF-α, IL-17. However, blocking these inflammatory cytokines failed to show any effect on IL-9 producing T cells, highlighting IL-9's hierarchy in the inflammatory network. Thus, we propose that blocking IL-9 might dampen synovial inflammation by restoring Tregs function and inhibiting inflammatory T cells 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Inflammatory cytokines 
650 4 |a Interleukin −9 
650 4 |a Regulatory T cells 
650 4 |a Rheumatoid arthritis 
650 4 |a Synovial fluid 
650 7 |a Cytokines  |2 NLM 
650 7 |a Interleukin-9  |2 NLM 
700 1 |a Gupta, Ranjan  |e verfasserin  |4 aut 
700 1 |a Kubatzky, Katharina F  |e verfasserin  |4 aut 
700 1 |a Kar, Santanu  |e verfasserin  |4 aut 
700 1 |a Kraus, Franziska V  |e verfasserin  |4 aut 
700 1 |a Souto-Carneiro, M Margarida  |e verfasserin  |4 aut 
700 1 |a Lorenz, Hanns-Martin  |e verfasserin  |4 aut 
700 1 |a Kumar, Pankaj  |e verfasserin  |4 aut 
700 1 |a Kumar, Vijay  |e verfasserin  |4 aut 
700 1 |a Mitra, Dipendra Kumar  |e verfasserin  |4 aut 
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