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Kamikaseda Y, Uruno T, Kunimura K, Harada A, Saiki K, Oisaki K, Sakata D, Nakahara T, Kido-Nakahara M, Kanai M, Nakamura S, Ohkawa Y, Furue M, Fukui Y. Targeted inhibition of EPAS1-driven IL-31 production by a small-molecule compound. J Allergy Clin Immunol 2021; 148:633-638. [PMID: 33819507 DOI: 10.1016/j.jaci.2021.03.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 02/26/2021] [Accepted: 03/16/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND IL-31 is a major pruritogen associated with atopic dermatitis (AD). Although a specific antibody for IL-31 receptor has been shown to alleviate pruritus in patients with AD, therapeutic approaches to inhibition of IL-31 production remain unexploited. IL-31 production by TH cells critically depends on the transcription factor EPAS1, which mediates IL31 promoter activation in collaboration with SP1. OBJECTIVE We aimed at developing small-molecule inhibitors that selectively block IL-31 production by TH cells. METHODS We generated the reporter cell line that inducibly expressed EPAS1 in the presence of doxycycline to mediate Il31 promoter activation, and we screened 9600 chemical compounds. The selected compounds were further examined by using TH cells from a spontaneous mouse model of AD and TH cells from patients with AD. RESULTS We have identified 4-(2-(4-isopropylbenzylidene)hydrazineyl)benzoic acid (IPHBA) as an inhibitor of IL31 induction. Although IPHBA did not affect nonspecific T-cell proliferation, IPHBA inhibited antigen-induced IL-31 production by TH cells from both an AD mouse model and patients with AD without affecting other cytokine production and hypoxic responses. In line with this, itch responses induced by adoptive transfer of IL-31-producing TH cells were attenuated when mice were orally treated with IPHBA. Mechanistically, IPHBA inhibited the association between EPAS1 and SP1, resulting in defective recruitment of both transcription factors to the specific sites of the IL31 promoter. We also determined the structure-activity relationship of IPHBA by synthesizing and analyzing 201 analogous compounds. CONCLUSION IPHBA could be a potential drug leading to inhibition of EPAS1-driven IL-31 production.
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Affiliation(s)
- Yasuhisa Kamikaseda
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan; Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takehito Uruno
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Kazufumi Kunimura
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Akihito Harada
- Division of Transcriptomics, Research Center for Transomics Medicine, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Kuniko Saiki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Kounosuke Oisaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Daiji Sakata
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Takeshi Nakahara
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Makiko Kido-Nakahara
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Seiji Nakamura
- Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yasuyuki Ohkawa
- Division of Transcriptomics, Research Center for Transomics Medicine, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Masutaka Furue
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshinori Fukui
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan.
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Kunimura K, Sakata D, Tun X, Uruno T, Ushijima M, Katakai T, Shiraishi A, Aihara R, Kamikaseda Y, Matsubara K, Kanegane H, Sawa S, Eberl G, Ohga S, Yoshikai Y, Fukui Y. S100A4 Protein Is Essential for the Development of Mature Microfold Cells in Peyer's Patches. Cell Rep 2020; 29:2823-2834.e7. [PMID: 31775048 DOI: 10.1016/j.celrep.2019.10.091] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 09/20/2019] [Accepted: 10/22/2019] [Indexed: 01/22/2023] Open
Abstract
Intestinal microfold cells (M cells) in Peyer's patches are a special subset of epithelial cells that initiate mucosal immune responses through uptake of luminal antigens. Although the cytokine receptor activator of nuclear factor-κB ligand (RANKL) expressed on mesenchymal cells triggers differentiation into M cells, other environmental cues remain unknown. Here, we show that the metastasis-promoting protein S100A4 is required for development of mature M cells. S100A4-producing cells are a heterogenous cell population including lysozyme-expressing dendritic cells and group 3 innate lymphoid cells. We found that in the absence of DOCK8, a Cdc42 activator critical for interstitial leukocyte migration, S100A4-producing cells are reduced in the subepithelial dome, resulting in a maturation defect of M cells. While S100A4 promotes differentiation into mature M cells in organoid culture, genetic inactivation of S100a4 prevents the development of mature M cells in mice. Thus, S100A4 is a key environmental cue that regulates M cell differentiation in collaboration with RANKL.
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Affiliation(s)
- Kazufumi Kunimura
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Daiji Sakata
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Research Center for Advanced Immunology, Kyushu University, Fukuoka 812-8582, Japan
| | - Xin Tun
- Division of Host Defence, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Takehito Uruno
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Research Center for Advanced Immunology, Kyushu University, Fukuoka 812-8582, Japan
| | - Miho Ushijima
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Tomoya Katakai
- Department of Immunology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Akira Shiraishi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Ryosuke Aihara
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Yasuhisa Kamikaseda
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Keisuke Matsubara
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Shinichiro Sawa
- Division of Mucosal Immunology, Research Center for Systems Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Gérard Eberl
- Microenvironment & Immunity Unit, INSERM U1224, Institut Pasteur, Paris 75724, France
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yasunobu Yoshikai
- Division of Host Defence, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Yoshinori Fukui
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Research Center for Advanced Immunology, Kyushu University, Fukuoka 812-8582, Japan.
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Sakata D, Uruno T, Matsubara K, Andoh T, Yamamura K, Magoshi Y, Kunimura K, Kamikaseda Y, Furue M, Fukui Y. Selective role of neurokinin B in IL-31–induced itch response in mice. J Allergy Clin Immunol 2019; 144:1130-1133.e8. [DOI: 10.1016/j.jaci.2019.06.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 06/17/2019] [Accepted: 06/25/2019] [Indexed: 10/26/2022]
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Ushijima M, Uruno T, Nishikimi A, Sanematsu F, Kamikaseda Y, Kunimura K, Sakata D, Okada T, Fukui Y. The Rac Activator DOCK2 Mediates Plasma Cell Differentiation and IgG Antibody Production. Front Immunol 2018; 9:243. [PMID: 29503648 PMCID: PMC5820292 DOI: 10.3389/fimmu.2018.00243] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 09/25/2017] [Accepted: 01/29/2018] [Indexed: 12/12/2022] Open
Abstract
A hallmark of humoral immune responses is the production of antibodies. This process involves a complex cascade of molecular and cellular interactions, including recognition of specific antigen by the B cell receptor (BCR), which triggers activation of B cells and differentiation into plasma cells (PCs). Although activation of the small GTPase Rac has been implicated in BCR-mediated antigen recognition, its precise role in humoral immunity and the upstream regulator remain elusive. DOCK2 is a Rac-specific guanine nucleotide exchange factor predominantly expressed in hematopoietic cells. We found that BCR-mediated Rac activation was almost completely lost in DOCK2-deficient B cells, resulting in defects in B cell spreading over the target cell-membrane and sustained growth of BCR microclusters at the interface. When wild-type B cells were stimulated in vitro with anti-IgM F(ab′)2 antibody in the presence of IL-4 and IL-5, they differentiated efficiently into PCs. However, BCR-mediated PC differentiation was severely impaired in the case of DOCK2-deficient B cells. Similar results were obtained in vivo when DOCK2-deficient B cells expressing a defined BCR specificity were adoptively transferred into mice and challenged with the cognate antigen. In addition, by generating the conditional knockout mice, we found that DOCK2 expression in B-cell lineage is required to mount antigen-specific IgG antibody. These results highlight important role of the DOCK2–Rac axis in PC differentiation and IgG antibody responses.
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Affiliation(s)
- Miho Ushijima
- Division of Immunogenetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Takehito Uruno
- Division of Immunogenetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan.,Research Center for Advanced Immunology, Kyushu University, Fukuoka, Japan
| | - Akihiko Nishikimi
- Department of Biosciences, School of Science, Kitasato University, Sagamihara, Japan
| | - Fumiyuki Sanematsu
- Department of Pharmacology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Yasuhisa Kamikaseda
- Division of Immunogenetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Kazufumi Kunimura
- Division of Immunogenetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Daiji Sakata
- Division of Immunogenetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan.,Research Center for Advanced Immunology, Kyushu University, Fukuoka, Japan
| | - Takaharu Okada
- Laboratory for Tissue Dynamics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yoshinori Fukui
- Division of Immunogenetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan.,Research Center for Advanced Immunology, Kyushu University, Fukuoka, Japan
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