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Matsumoto N, Kon S, Nakatsuru T, Miyashita T, Inui K, Saitoh K, Kitai Y, Muromoto R, Kashiwakura JI, Uede T, Matsuda T. A Novel α9 Integrin Ligand, XCL1/Lymphotactin, Is Involved in the Development of Murine Models of Autoimmune Diseases. J Immunol 2017; 199:82-90. [PMID: 28550205 DOI: 10.4049/jimmunol.1601329] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 04/27/2017] [Indexed: 11/19/2022]
Abstract
The integrin α9β1 is a key receptor involved in the development of autoimmune diseases. However, the detailed mechanism for the association of α9β1 integrin with its ligands remains unclear. In this study, we introduce XCL1/lymphotactin, a member of the chemokine family, as a novel ligand for α9 integrin. Using α9 integrin-overexpressing NIH3T3 cells and endogenously α9 integrin-expressing human rhabdomyosarcoma cells, the interaction between XCL1 and α9 integrin was confirmed by pull-down assays. XCL1 enhanced α9 integrin-dependent cell migration of these cells, thus acting on α9 integrin as a chemoattractant. We also analyzed the in vivo function of XCL1 in the development of anti-type II collagen Ab-induced inflammatory arthritis (CAIA) in BALB/c mice and experimental autoimmune encephalomyelitis in C57BL/6 mice, because α9 integrin is involved in these autoimmune disease models. In CAIA, recombinant XCL1 aggravated the disease and this exacerbation was inhibited by an anti-α9 integrin Ab. An XCL1-neutralizing Ab produced in this study also ameliorated CAIA. Furthermore, the XCL1-neutralizing Ab abrogated the disease progression in experimental autoimmune encephalomyelitis. Therefore, to our knowledge this study provides the first in vitro and in vivo evidence that the interaction between XCL1 and α9 integrin has an important role for autoimmune diseases.
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Affiliation(s)
- Naoki Matsumoto
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Shigeyuki Kon
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan; .,Department of Molecular Immunology, Faculty of Pharmaceutical Sciences, Fukuyama University, Fukuyama 729-0292, Japan; and
| | - Takuya Nakatsuru
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Tomoe Miyashita
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Kyosuke Inui
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Kodai Saitoh
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Yuichi Kitai
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Ryuta Muromoto
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Jun-Ichi Kashiwakura
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
| | - Toshimitsu Uede
- Division of Molecular Immunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0817, Japan
| | - Tadashi Matsuda
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0815, Japan
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Saitoh K, Kon S, Nakatsuru T, Inui K, Ihara T, Matsumoto N, Kitai Y, Muromoto R, Matsuda T. Anti-IL-17A blocking antibody reduces cyclosporin A-induced relapse in experimental autoimmune encephalomyelitis mice. Biochem Biophys Rep 2016; 8:139-145. [PMID: 28955949 PMCID: PMC5613930 DOI: 10.1016/j.bbrep.2016.08.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 08/22/2016] [Accepted: 08/24/2016] [Indexed: 12/12/2022] Open
Abstract
Cyclosporin A (CsA) is effective at reducing pathogenic immune responses, but upon withdrawal of CsA the immune response often “rebounds” resulting in a relapse or exacerbation of disease. The mechanisms, cells and cytokines involved in the relapse or exacerbation after CsA withdrawal are unknown. We hypothesized that CsA withdrawal induces IL-17 production that could be responsible for relapse, and examined the effect of anti-IL-17A antibody on relapse induced after CsA withdrawal in mouse experimental autoimmune encephalomyelitis (EAE). CsA treatment markedly decreased the EAE disease score during the first episode, but augmented disease severity after CsA withdrawal, compared to untreated mice. After discontinuation of CsA the production of IL-17A was increased and the severity of relapse in EAE was reduced by treatment with anti-IL-17A antibody. These results suggest that the resumption of T cell immune responses after CsA withdrawal leads to a burst of IL-17A production that is at least partially responsible for relapse in EAE mice. Establishment of murine rebound model induced by CsA withdrawal. Enhanced local and systemic secretion of IL-17A in EAE mice after CsA withdrawal. Anti-IL-17A antibody prevents EAE relapse after CsA withdrawal.
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Key Words
- CNS, central nervous system
- CsA, cyclosporine A
- Cyclosporin A (CsA)
- EAE, Experimental autoimmune encephalomyelitis
- Experimental autoimmune encephalomyelitis (EAE)
- IL, interleukin
- IL-17A
- MOG, myelin oligodendrocyte glycoprotein
- MS, multiple sclerosis
- NFAT, Nuclear factor of activated T-cells
- PLP, proteolipid protein
- ROR-γT (, RAR-related orphan receptor-γT
- Relapse
- STAT3, signal transducer and activator of transcription 3, Tc cells: cytotoxic T cells
- TNF-α, tumour necrosis factor-α
- Th cells, helper T cells
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Affiliation(s)
- Kodai Saitoh
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Shigeyuki Kon
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan.,Department of Molecular Immunology, Faculty of Pharmaceutical Sciences, Fukuyama University, Fukuyama 729-0292, Japan
| | - Takuya Nakatsuru
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Kyosuke Inui
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Takeru Ihara
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Naoki Matsumoto
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Yuichi Kitai
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Ryuta Muromoto
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
| | - Tadashi Matsuda
- Department of Immunology, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan
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Kouro H, Kon S, Matsumoto N, Miyashita T, Kakuchi A, Ashitomi D, Saitoh K, Nakatsuru T, Togi S, Muromoto R, Matsuda T. The novel α4B murine α4 integrin protein splicing variant inhibits α4 protein-dependent cell adhesion. J Biol Chem 2014; 289:16389-98. [PMID: 24755217 DOI: 10.1074/jbc.m114.553610] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Integrins affect the motility of multiple cell types to control cell survival, growth, or differentiation, which are mediated by cell-cell and cell-extracellular matrix interactions. We reported previously that the α9 integrin splicing variant, SFα9, promotes WT α9 integrin-dependent adhesion. In this study, we introduced a new murine α4 integrin splicing variant, α4B, which has a novel short cytoplasmic tail. In inflamed tissues, the expression of α4B, as well as WT α4 integrin, was up-regulated. Cells expressing α4B specifically bound to VCAM-1 but not other α4 integrin ligands, such as fibronectin CS1 or osteopontin. The binding of cells expressing WT α4 integrin to α4 integrin ligands is inhibited by coexpression of α4B. Knockdown of α4B in metastatic melanoma cell lines results in a significant increase in lung metastasis. Expression levels of WT α4 integrin are unaltered by α4B, with α4B acting as a regulatory subunit for WT α4 integrin by a dominant-negative effect or inhibiting α4 integrin activation.
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Affiliation(s)
- Hitomi Kouro
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Shigeyuki Kon
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Naoki Matsumoto
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Tomoe Miyashita
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Ayaka Kakuchi
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Dai Ashitomi
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Kodai Saitoh
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Takuya Nakatsuru
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Sumihito Togi
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Ryuta Muromoto
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
| | - Tadashi Matsuda
- From the Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-Ku, Sapporo, 060-0812, Japan
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