B and T Lymphocyte Attenuator Suppresses IL-21 Production from Follicular Th Cells and Subsequent Humoral Immune Responses
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- Akira Suto
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Yukiko Hiramatsu
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Kei Ikeda
- Department of Allergy and Clinical Immunology, Chiba University Hospital , Asahi, Chiba ,
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- Hiroaki Takatori
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Kotaro Suzuki
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Daisuke Kashiwakuma
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Norihiko Watanabe
- Department of Allergy and Clinical Immunology, Chiba University Hospital , Asahi, Chiba ,
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- Hiroshi Nakajima
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Itsuo Iwamoto
- Research Center for Allergy and Clinical Immunology, Asahi General Hospital , Asahi, Chiba ,
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- Shin-ichiro Kagami
- Department of Molecular Genetics, Graduate School of Medicine, Chiba University , Asahi, Chiba ,
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- Koichi Hirose
- Department of Allergy and Clinical Immunology, Chiba University Hospital , Asahi, Chiba ,
書誌事項
- 公開日
- 2010-09-01
- 資源種別
- journal article
- 権利情報
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- https://academic.oup.com/pages/standard-publication-reuse-rights
- DOI
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- 10.4049/jimmunol.0903839
- 公開者
- Oxford University Press (OUP)
この論文をさがす
説明
<jats:title>Abstract</jats:title> <jats:p>We recently showed that mice lacking B and T lymphocyte attenuator (BTLA), a third inhibitory coreceptor expressed on B cells and T cells, exhibit an increased Ag-specific IgG response and gradually develop hyper-γ–globulinemia and autoantibody production. Recent studies revealed that follicular Th (Tfh) cells, which are non-Th1, non-Th2 effector T cells that express CXCR5 and provide help for B cells to produce Ig, also express BTLA. However, the role of BTLA in Tfh cell function remains unknown. In this study, we examined the regulatory role of BTLA in the development and function of Tfh cells. We found that CXCR5+ Tfh cells expressed higher levels of BTLA than did CXCR5− conventional CD4+ T cells. We also found that adoptive transfer of BTLA−/− CD4+ T cells, stimulated under Tfh cell-inducing conditions (Tfh-like cells), to wild-type (WT) mice induced more Ag-specific IgG2a and IgG2b production compared with that of WT Tfh-like cells. By contrast, another adoptive-transfer experiment using BTLA−/− mice as recipients showed that the expression of BTLA on B cells was not involved in the regulation of Tfh-like cell-mediated Ag-specific IgG responses. Moreover, the development of IL-21–producing CXCR5+ Tfh-like cells was significantly increased in BTLA−/− CD4+ T cells compared with WT CD4+ T cells. Furthermore, Tfh-like cell-mediated IgG responses were abolished when IL-21R−/− mice were used as recipients. These results suggest that BTLA signaling suppresses IL-21 production from Tfh cells and subsequent Tfh cell-mediated IgG responses.</jats:p>
収録刊行物
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- The Journal of Immunology
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The Journal of Immunology 185 (5), 2730-2736, 2010-09-01
Oxford University Press (OUP)
