Abstract |
In mice, marginal zone (MZ) B cells are found principally in the MZ of the spleen and characterized as CD23-negative cells, primarily express polyreactive BCRs, high levels of complement receptor-2 and TLRs. Collagen-induced arthritis (CIA) is a commonly used animal model of human rheumatoid arthritis, considered as a Th1-mediated disease. Although the importance of MZ B cells in the initiation of CIA is well established, their role in remission is unexplored. Besides, playing a central role in Th1 cell development, T-box transcription factor (T-bet) has important functions in B cells. T-bet is regulated by IFN-γ and through the BCR and TLR9, the signals that have an impact on regulatory IL-10 production. In this work, we aimed to analyze the contribution of T-bet to the function of IL-10-positive MZ B cells. We demonstrate that during the remission phase of CIA, MZ B cells express an elevated level of T-bet and confirm the existence of IL-10/T-bet coexpressing cells. Moreover, we show that T-bet-expressing MZ B cells migrate toward CXCR3 ligand and secrete IL-10 by inflammatory stimuli. Our data suggest that T-bet might contribute to the remission of CIA by facilitating the regulatory potential of IL-10-positive MZ B cells.
|
Authors | Krisztina Huber, Gabriella Sármay, Dorottya Kövesdi |
Journal | European journal of immunology
(Eur J Immunol)
Vol. 46
Issue 9
Pg. 2239-46
(09 2016)
ISSN: 1521-4141 [Electronic] Germany |
PMID | 27343199
(Publication Type: Journal Article)
|
Copyright | © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Chemical References |
- Antibodies, Anti-Idiotypic
- Oligodeoxyribonucleotides
- Receptors, CXCR3
- T-Box Domain Proteins
- T-box transcription factor TBX21
- anti-IgM
- Interleukin-10
- Interferon-gamma
|
Topics |
- Animals
- Antibodies, Anti-Idiotypic
(immunology)
- Arthritis, Experimental
(genetics, immunology, metabolism)
- B-Lymphocytes
(drug effects, immunology, metabolism)
- Cells, Cultured
- Chemotaxis
(genetics, immunology)
- Female
- Gene Expression
- Interferon-gamma
(pharmacology)
- Interleukin-10
(genetics, metabolism)
- Lymphocyte Activation
(immunology)
- Mice
- Oligodeoxyribonucleotides
(immunology)
- Receptors, CXCR3
(metabolism)
- T-Box Domain Proteins
(genetics, metabolism)
|