The role of ILCs in the development of rheumatoid arthritis
Project/Area Number |
16K09897
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Collagenous pathology/Allergology
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Research Institution | Kyushu University |
Principal Investigator |
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 関節リウマチ / 自然リンパ球 / Th17サイトカイン / CCR6 / ILC3 / IL-17 / IL-22 / arthritis / IL-17A |
Outline of Final Research Achievements |
Recent studies show that Innate Lymphoid Cells (ILCs) contribute to development of chronic inflammation and autoimmune disease. In this study, we assessed ILC function in the pathogenesis of rheumatoid arthritis (RA). In the mouse of collagen-induced arthritis (CIA) , the proportion of CCR6+ ILC3s to total ILCs in joints with active inflammation significantly increased relative to non-arthritic joints (median 29.6% vs 16.7%, p=0.035). CCR6+ ILC3s from mice with arthritis expressed significantly higher levels of IL-17A and IL-22 mRNA than did comparable cells from control mice (p < 0.0001 and p=0.015). In RA patients, relatively high levels of CCR6+ ILC3s in SF were positively correlated with tender joint count (TJC) and swollen joint count (SJC) (ρ=0.689, p=0.0032 and ρ=0.644, p=0.0071 respectively). These data suggest that CCR6+ ILC3s are positively associated with RA development through production of IL-17 and IL-22.
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Academic Significance and Societal Importance of the Research Achievements |
近年、関節リウマチの治療成績は飛躍的に改善したが、未だ臨床的寛解に到達できず、関節破壊が進行する症例が少なからず存在する。この理由の一つに、未だ解明できていない病態があり、その制御が不十分な可能性がある。今回我々は、新規細胞系列であるILCに着目した。この細胞系列は、ヘルパーT細胞に非常に類似した機能を有している。本研究にて、関節炎発症においてCCR6+ILC3が関与している可能性が新たに示唆された。これにより、関節リウマチの病態の理解が進むだけでなく、関節リウマチの新たな治療戦略構築にも役立つと考えられる。
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Report
(4 results)
Research Products
(18 results)
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[Journal Article] CD34-selected versus unmanipulated autologous hematopoietic stem cell transplantation in the treatment of severe systemic sclerosis: a post hoc analysis of a phase I/II clinical trial conducted in Japan.2019
Author(s)
Ayano M, Tsukamoto H, Mitoma H, Kimoto Y, Akahoshi M, Arinobu Y, Miyamoto T, Horiuchi T, Niiro H, Nagafuji K, Harada M, Akashi K
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Journal Title
Arthritis Res Ther.
Volume: 21
Issue: 1
Pages: 30-30
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Effects of tumor necrosis factor inhibitors and tocilizumab on the glycosylated hemoglobin levels in patients with rheumatoid arthritis; an observational study2018
Author(s)
(2)Otsuka Y, Kiyohara C, Kashiwado Y, Sawabe T, Nagano S, Kimoto Y, Ayano M, Mitoma H, Akahoshi M, Arinobu Y, Niiro H, Akashi K, Horiuchi T
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Journal Title
PLoS One
Volume: 13
Issue: 4
Pages: e0196368-e0196368
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Identification of unipotent megakaryocyte progenitors in human hematopoiesis.2017
Author(s)
K. Miyawaki. Iwasaki, T. Jiromaru, H. Kusumoto, A. Yurino, T. Sugio, Y. Uehara, J. Odawara, S. Daitoku, Y. Kunisaki, Y. Mori, Y. Arinobu, H. Tsuzuki, Y. Kikushige, T. Iino, K. Kato, K. Takenaka, T. Miyamoto, T. Maeda, *K. Akashi
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Journal Title
Blood
Volume: 印刷中
Issue: 25
Pages: 3332-3343
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Functional interleukin-33 receptors are expressed in early progenitor stages of allergy-related granulocytes.2017
Author(s)
Tsuzuki H, Arinobu Y, Miyawaki K, Takaki A, Ota SI, Ota Y, Mitoma H, Akahoshi M, Mori Y, Iwasaki H, Niiro H, Tsukamoto H, Akashi K.
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Journal Title
Immunology
Volume: 150
Pages: 64-73
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Functional and Quantitative Changes of CCR6+type3 Innate Lymphoid Cells in Murine Collagen-Induced Arthritis2016
Author(s)
Takaki A, Arinobu Y, Irino K, Tsuzuki H, Ota Y, Oryoji D, Ayano M, Kimoto Y, Mitoma H, Akahoshi M, Niiro H, Tsukamoto H, Horiuchi T, Akashi K
Organizer
American College of Rheumatology 2016 Annual meeting
Place of Presentation
Washington, DC
Year and Date
2016-11-11
Related Report
Int'l Joint Research
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