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Bataclan M, Leoni C, Moro SG, Pecoraro M, Wong EH, Heissmeyer V, Monticelli S. Crosstalk between Regnase-1 and -3 shapes mast cell survival and cytokine expression. Life Sci Alliance 2024; 7:e202402784. [PMID: 38830770 DOI: 10.26508/lsa.202402784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024] Open
Abstract
Post-transcriptional regulation of immune-related transcripts by RNA-binding proteins (RBPs) impacts immune cell responses, including mast cell functionality. Despite their importance in immune regulation, the functional role of most RBPs remains to be understood. By manipulating the expression of specific RBPs in murine mast cells, coupled with mass spectrometry and transcriptomic analyses, we found that the Regnase family of proteins acts as a potent regulator of mast cell physiology. Specifically, Regnase-1 is required to maintain basic cell proliferation and survival, whereas both Regnase-1 and -3 cooperatively regulate the expression of inflammatory transcripts upon activation, with Tnf being a primary target in both human and mouse cells. Furthermore, Regnase-3 directly interacts with Regnase-1 in mast cells and is necessary to restrain Regnase-1 expression through the destabilization of its transcript. Overall, our study identifies protein interactors of endogenously expressed Regnase factors, characterizes the regulatory interplay between Regnase family members in mast cells, and establishes their role in the control of mast cell homeostasis and inflammatory responses.
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Affiliation(s)
- Marian Bataclan
- https://ror.org/05gfswd81 Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Cristina Leoni
- https://ror.org/05gfswd81 Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Simone G Moro
- https://ror.org/05gfswd81 Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Matteo Pecoraro
- https://ror.org/05gfswd81 Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Elaine H Wong
- Institute for Immunology, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians-Universität in Munich, Planegg-Martinsried, Germany
| | - Vigo Heissmeyer
- Institute for Immunology, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians-Universität in Munich, Planegg-Martinsried, Germany
- Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, Munich, Germany
| | - Silvia Monticelli
- https://ror.org/05gfswd81 Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
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Sun X, Nagahama Y, Singh SK, Kozakai Y, Nabeshima H, Fukushima K, Tanaka H, Motooka D, Fukui E, Vivier E, Diez D, Akira S. Deletion of the mRNA endonuclease Regnase-1 promotes NK cell anti-tumor activity via OCT2-dependent transcription of Ifng. Immunity 2024:S1074-7613(24)00259-0. [PMID: 38821052 DOI: 10.1016/j.immuni.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/31/2023] [Accepted: 05/07/2024] [Indexed: 06/02/2024]
Abstract
Limited infiltration and activity of natural killer (NK) and T cells within the tumor microenvironment (TME) correlate with poor immunotherapy responses. Here, we examined the role of the endonuclease Regnase-1 on NK cell anti-tumor activity. NK cell-specific deletion of Regnase-1 (Reg1ΔNK) augmented cytolytic activity and interferon-gamma (IFN-γ) production in vitro and increased intra-tumoral accumulation of Reg1ΔNK-NK cells in vivo, reducing tumor growth dependent on IFN-γ. Transcriptional changes in Reg1ΔNK-NK cells included elevated IFN-γ expression, cytolytic effectors, and the chemokine receptor CXCR6. IFN-γ induced expression of the CXCR6 ligand CXCL16 on myeloid cells, promoting further recruitment of Reg1ΔNK-NK cells. Mechanistically, Regnase-1 deletion increased its targets, the transcriptional regulators OCT2 and IκBζ, following interleukin (IL)-12 and IL-18 stimulation, and the resulting OCT2-IκBζ-NF-κB complex induced Ifng transcription. Silencing Regnase-1 in human NK cells increased the expression of IFNG and POU2F2. Our findings highlight NK cell dysfunction in the TME and propose that targeting Regnase-1 could augment active NK cell persistence for cancer immunotherapy.
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Affiliation(s)
- Xin Sun
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Quantitative Immunology Unit, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Joint Research Chair of Innate Immunity for Drug Discovery, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yasuharu Nagahama
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Host Defense Laboratory, Immunology Unit, Department of Medical Innovations, Osaka Research Center for Drug Discovery, Otsuka Pharmaceutical Co. Ltd., 5-1-35 Saito-aokita, Minoh, Osaka 562-0029, Japan; Joint Research Chair of Innate Immunity for Drug Discovery, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Shailendra Kumar Singh
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Joint Research Chair of Innate Immunity for Drug Discovery, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yuuki Kozakai
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Nabeshima
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Host Defense Laboratory, Immunology Unit, Department of Medical Innovations, Osaka Research Center for Drug Discovery, Otsuka Pharmaceutical Co. Ltd., 5-1-35 Saito-aokita, Minoh, Osaka 562-0029, Japan; Joint Research Chair of Innate Immunity for Drug Discovery, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Kiyoharu Fukushima
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Joint Research Chair of Innate Immunity for Drug Discovery, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Department of Host Defense, Research Institute for Microbial Diseases (RIMD), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hiroki Tanaka
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Daisuke Motooka
- NGS Core Facility of the Genome Information Research Center, RIMD, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Eriko Fukui
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Eric Vivier
- Aix-Marseille Université, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Centre d'Immunologie de Marseille-Luminy, Marseille, France; Innate Pharma Research Laboratories, Marseille, France; APHM, Hôpital de la Timone, Marseille-Immunopole, Marseille, France
| | - Diego Diez
- Quantitative Immunology Unit, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Shizuo Akira
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (WPI-IFReC), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Joint Research Chair of Innate Immunity for Drug Discovery, WPI-IFReC, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Department of Host Defense, Research Institute for Microbial Diseases (RIMD), Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan; Center for Advanced Modalities and Drug Delivery System (CAMaD), Osaka University, 2-8 Yamada-oka, Suita, Osaka 565-0871, Japan.
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3
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Tian C, Liu Q, Zhang X, Li Z. Blocking group 2 innate lymphoid cell activation and macrophage M2 polarization: potential therapeutic mechanisms in ovalbumin-induced allergic asthma by calycosin. BMC Pharmacol Toxicol 2024; 25:30. [PMID: 38650035 PMCID: PMC11036756 DOI: 10.1186/s40360-024-00751-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 04/10/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Calycosin, a flavonoid compound extracted from Astragalus membranaceus, has shown anti-asthma benefits in house dust mite-induced asthma. Recent studies have suggested that innate-type cells, including group 2 innate lymphoid cells (ILC2s) and macrophages, serve as incentives for type 2 immunity and targets for drug development in asthma. This work focuses on the effects of calycosin on the dysregulated ILC2s and macrophages in allergic asthma. METHODS In vivo, the asthmatic mouse model was established with ovalbumin (OVA) sensitization and challenge, and calycosin was intraperitoneally administered at doses of 20 and 40 mg/kg. In vivo, mouse primary ILC2s were stimulated with interleukin (IL)-33 and mouse RAW264.7 macrophages were stimulated with IL-4 and IL-13 to establish the cell models. Cells were treated with calycosin at doses of 5 and 10 µM. RESULTS In vivo, we observed significantly reduced numbers of eosinophils, neutrophils, monocyte macrophages and lymphocytes in the bronchoalveolar lavage fluid (BALF) of OVA-exposed mice with 40 mg/kg calycosin. Histopathological assessment showed that calycosin inhibited the airway inflammation and remodeling caused by OVA. Calycosin markedly decreased the up-regulated IL-4, IL-5, IL-13, IL-33, and suppression tumorigenicity 2 (ST2) induced by OVA in BALF and/or lung tissues of asthmatic mice. Calycosin repressed the augment of arginase 1 (ARG1), IL-10, chitinase-like 3 (YM1) and mannose receptor C-type 1 (MRC1) levels in the lung tissues of asthmatic mice. In vivo, calycosin inhibited the IL-33-induced activation as well as the increase of IL-4, IL-5, IL-13 and ST2 in ILC2s. Calycosin also repressed the increase of ARG1, IL-10, YM1 and MRC1 induced by IL-4 and IL-13 in RAW264.7 macrophages. In addition, we found that these changes were more significant in 40 mg/kg calycosin treatment than 20 mg/kg calycosin. CONCLUSIONS Collectively, this study showed that calycosin might attenuate OVA-induced airway inflammation and remodeling in asthmatic mice via preventing ILC2 activation and macrophage M2 polarization. Our study might contribute to further study of asthmatic therapy.
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Affiliation(s)
- Chunyan Tian
- Department of Respiratory Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- Department of Graduate, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Qi Liu
- Department of Respiratory Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaoyu Zhang
- Department of Respiratory Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zhuying Li
- Department of Respiratory Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China.
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Xie X, Li Y, Yan B, Peng Q, Yao R, Deng Q, Li J, Wu Y, Chen S, Yang X, Ma P. Mediation of the JNC/ILC2 pathway in DBP-exacerbated allergic asthma: A molecular toxicological study on neuroimmune positive feedback mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133360. [PMID: 38157815 DOI: 10.1016/j.jhazmat.2023.133360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Dibutyl phthalate (DBP), a commonly used plasticizer, has been found to be strongly linked to a consistently high prevalence of allergic diseases, particularly allergic asthma. Previous animal experiments have demonstrated that exposure to DBP can worsen asthma by triggering the production of calcitonin gene-related peptide (CGRP), a neuropeptide in the lung tissue. However, the precise neuroimmune mechanism and pathophysiology of DBP-exacerbated allergic asthma with the assistance of CGRP remain unclear. OBJECTIVE The present study was to investigate the potential pathophysiological mechanism in DBP-exacerbated asthma from the perspective of neural-immune interactions. METHODS AND RESULTS C57BL/6 mice were orally exposed to different concentrations (0.4, 4, 40 mg/kg) of DBP for 28 days. They were then sensitized with OVA and nebulized with OVA for 7 consecutive excitations. To investigate whether DBP exacerbates allergic asthma in OVA induced mice, we analyzed airway hyperresponsiveness and lung histopathology. To investigate the activation of JNC and TRPV1 neurons and the release of CGRP by JNC cells, we measured the levels of TRPV1 channels, calcium inward flow, and downstream neuropeptide CGRP. Results showed that TRPV1 expression, inward calcium flux, and CGRP levels were significantly elevated in the lung tissues of the 40DBP + OVA group, suggesting the release of CGRP by JNC cells. To counteract the detrimental effects of DBP mediated by CGRP, we employed olcegepant (also known as BIBN-4096), a CGRP receptor specific antagonist. Results revealed that 40DBP + OVA + olcegepant led to notable decreases in TRPV1, calcium inward flow, and CGRP expression in lung tissues compare with 40DBP + OVA, further supporting the efficacy of olcegepant. Additionally, we also conducted ILC2 flow sorting and observed that neuropeptide CGRP-activated ILC2 cells have a crucial role as key effector cells in DBP-induced neuroimmune positive feedback regulation. Finally, we examined the protein expression of CGRP, GATA3 and P-GATA3, and found that significant upregulations of CGRP and P-GATA3 in the 40DBP + OVA group, suggest that GATA3 acted as a key regulator of CGRP-activated ILC2. CONCLUSION The aforementioned studies indicate that exposure to DBP can exacerbate allergic asthma, leading to airway inflammation. This exacerbation occurs through the activation of TRPV1 in JNC, resulting in the release of CGRP. The excessive release of CGRP further promotes the release of Th2 cytokines by inducing the activation of ILC2 through GATA phosphorylation. Consequently, this process contributes to the development of airway inflammation and allergic asthma. The increased production of Th2 cytokines also triggers the production of IgE, which interacts with FcεRI on JNC neurons, thereby mediating neuro-immune positive feedback regulation.
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Affiliation(s)
- Xiaomin Xie
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Yan Li
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China; Department of Pharmacy, Ezhou Central Hospital, Ezhou 436000, China
| | - Biao Yan
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Qi Peng
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Runming Yao
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), Chongqing University, Chongqing 400045, China
| | - Qihong Deng
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jinquan Li
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Yang Wu
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Shaohui Chen
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Xu Yang
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Ping Ma
- Key Laboratory of Environmental Related Diseases and One Health, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China.
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Yoshinaga M, Takeuchi O. RNA Metabolism Governs Immune Function and Response. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1444:145-161. [PMID: 38467978 DOI: 10.1007/978-981-99-9781-7_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Inflammation is a complex process that protects our body from various insults such as infection, injury, and stress. Proper inflammation is beneficial to eliminate the insults and maintain organ homeostasis, however, it can become detrimental if uncontrolled. To tightly regulate inflammation, post-transcriptional mechanisms governing RNA metabolism play a crucial role in monitoring the expression of immune-related genes, such as tumor necrosis factor (TNF) and interleukin-6 (IL-6). These mechanisms involve the coordinated action of various RNA-binding proteins (RBPs), including the Regnase family, Roquin, and RNA methyltransferases, which are responsible for mRNA decay and/or translation regulation. The collaborative efforts of these RBPs are essential in preventing aberrant immune response activation and consequently safeguarding against inflammatory and autoimmune diseases. This review provides an overview of recent advancements in our understanding of post-transcriptional regulation within the immune system and explores the specific roles of individual RBPs in RNA metabolism and regulation.
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Affiliation(s)
- Masanori Yoshinaga
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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Tanaka Y, Yamagishi M, Motomura Y, Kamatani T, Oguchi Y, Suzuki N, Kiniwa T, Kabata H, Irie M, Tsunoda T, Miya F, Goda K, Ohara O, Funatsu T, Fukunaga K, Moro K, Uemura S, Shirasaki Y. Time-dependent cell-state selection identifies transiently expressed genes regulating ILC2 activation. Commun Biol 2023; 6:915. [PMID: 37673922 PMCID: PMC10482971 DOI: 10.1038/s42003-023-05297-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023] Open
Abstract
The decision of whether cells are activated or not is controlled through dynamic intracellular molecular networks. However, the low population of cells during the transition state of activation renders the analysis of the transcriptome of this state technically challenging. To address this issue, we have developed the Time-Dependent Cell-State Selection (TDCSS) technique, which employs live-cell imaging of secretion activity to detect an index of the transition state, followed by the simultaneous recovery of indexed cells for subsequent transcriptome analysis. In this study, we used the TDCSS technique to investigate the transition state of group 2 innate lymphoid cells (ILC2s) activation, which is indexed by the onset of interleukin (IL)-13 secretion. The TDCSS approach allowed us to identify time-dependent genes, including transiently induced genes (TIGs). Our findings of IL4 and MIR155HG as TIGs have shown a regulatory function in ILC2s activation.
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Affiliation(s)
- Yumiko Tanaka
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Mai Yamagishi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
- Live Cell Diagnosis, Ltd, Saitama, Japan
| | - Yasutaka Motomura
- Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takashi Kamatani
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- Department of AI Technology Development, M&D Data Science Center, Tokyo Medical and Dental University, Tokyo, Japan
- Division of Precision Cancer Medicine, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yusuke Oguchi
- PRESTO, JST, Saitama, Japan
- RIKEN Cluster for Pioneering Research, Saitama, Japan
| | - Nobutake Suzuki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Tsuyoshi Kiniwa
- RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Hiroki Kabata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Misato Irie
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tatsuhiko Tsunoda
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Fuyuki Miya
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Keisuke Goda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
- Institute of Technological Sciences, Wuhan University, Hubei, 430072, China
| | | | - Takashi Funatsu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kazuyo Moro
- Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan
- RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Sotaro Uemura
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.
| | - Yoshitaka Shirasaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.
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Yang G, Lee HE, Trzeciak M, Pawelczyk T, Takeuchi O, Kang HC, Cho YY, Lee HS, Lee JY. Regnase-1 plays an essential role in maintaining skin immune homeostasis via regulation of chemokine expression. Biomed Pharmacother 2023; 162:114558. [PMID: 36966666 DOI: 10.1016/j.biopha.2023.114558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Regnase-1 is an endoribonuclease that regulates the stability of target genes. Here, we investigated whether Regnase-1 plays a regulatory role in the pathophysiology of atopic dermatitis, a chronic inflammatory skin disease. Regnase-1 levels were decreased in skin and serum of atopic dermatitis patients and mice. Regnase-1+/- mice exhibited more severe atopic dermatitis symptoms than wild-type mice in a house dust mite allergen-induced atopic dermatitis model. Regnase-1 deficiency led to the global changes in gene expression related with innate immune and inflammatory responses, in particular chemokines. The skin Regnase-1 level had an inverse relationship with chemokine expression when we analyzed samples of atopic dermatitis patients and Regnase-1-deficient mice, suggesting that potentiated chemokine production contributes to the augmented inflammation at lesion sites. Subcutaneous administration of recombinant Regnase-1 to mice significantly ameliorated atopic dermatitis-like skin inflammation with reduced chemokine production in a house dust mite-induced atopic dermatitis NC/Nga mouse model. These results indicate that Regnase-1 plays an essential role in maintaining skin immune homeostasis as a regulator of chemokine expression. Modulating Regnase-1 activity may be an efficient therapeutic strategy for treating chronic inflammatory diseases, including atopic dermatitis.
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Affiliation(s)
- Gabsik Yang
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea; Department of Pharmacology, College of Korean Medicine, Woosuk University, Jeonbuk 565-701, Republic of Korea
| | - Hye Eun Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Magdalena Trzeciak
- Department of Dermatology, Venereology, and Allergology, Medical University of Gdansk, Gdansk 80-214, Poland
| | - Tadeusz Pawelczyk
- Department of Molecular Medicine, Medical University of Gdansk, Gdansk 80-214, Poland
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Han Chang Kang
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Hye Suk Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Joo Young Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Republic of Korea.
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8
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Nagashima R, Ishikawa H, Kuno Y, Kohda C, Iyoda M. HIF-PHD inhibitor regulates the function of group2 innate lymphoid cells and polarization of M2 macrophages. Sci Rep 2023; 13:1867. [PMID: 36725898 PMCID: PMC9892566 DOI: 10.1038/s41598-023-29161-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/31/2023] [Indexed: 02/03/2023] Open
Abstract
Hypoxia-inducible factor-prolyl hydroxylase (HIF-PHD) inhibitors are therapeutic agents for renal anemia that work through HIF2-mediated upregulation of erythropoietin (EPO) and have also been reported to suppress renal fibrosis. Group 2 innate lymphoid cells (ILC2s) have been proven to be involved in the pathogenesis of fibrosis in various organs, including the kidney. However, the relationship between the HIF pathway, renal fibrosis, and kidney ILC2s remains unclear. In the present study, we found that HIF activation by HIF-PHD inhibitors suppressed type 2 cytokine production from kidney ILC2s. The enhanced HIF pathway downregulated the IL-33 receptor ST2L on ILC2s, and phosphorylation of downstream p38 MAPK was attenuated. M2 macrophages that promote renal fibrosis were polarized by ILC2 supernatants, but reduced cytokine production from ILC2s treated with HIF-PHD inhibitors suppressed this polarization. Our findings suggest that HIF-PHD inhibitors are potential therapeutic agents for renal fibrosis that are mediated by the alteration of ILC2 function.
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Affiliation(s)
- Ryuichi Nagashima
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan.
| | - Hiroki Ishikawa
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
| | - Yoshihiro Kuno
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan.,Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Chikara Kohda
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan
| | - Masayuki Iyoda
- Department of Microbiology and Immunology, Showa University School of Medicine, Tokyo, Japan.,Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
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9
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Li Q, Zhang J, Ma L, Wu C, Zhao J, Guan W, Li X, Yang X, Wen F. ILC2s induce adaptive Th2-type immunity in different stages of tuberculosis through the Notch-GATA3 pathway. Int Immunopharmacol 2021; 101:108330. [PMID: 34862127 DOI: 10.1016/j.intimp.2021.108330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 02/05/2023]
Abstract
The study is to investigate the roles of group 2 innate lymphoid cells (ILC2s) in different courses of tuberculosis (TB). Serum and PBMCs were respectively isolated from the TST negative, LTBI (latent TB infection), ATB (active TB) and RTB (recurrent TB) patients. Flow cytometry was used to detect Th1, Th2 and ILC2s in the peripheral blood. The mRNA and protein levels of GATA3, RORα, CRTH2, Hes1, Notch1, NF-κB, and ID2 were detected by qRT-PCR and Western blotting. ILC2 cells from ATB and RTB patients were stimulated with rJagged2 or DAPT in vitro, and co-cultured with CD4+ T cells from TST negative group. ELISA was used to detect cytokine levels. The results showed that compared with the TST negative or LTBI group, Th2 cells and serum IL-4 in ATB group increased dramatically, accompanied by an increase of Th2/Th1 ratio in ATB patients, especially in RTB group. However, ILC2s in the ATB and RTB group increased significantly, along with increased GATA3, RORα, and CRTH2 levels. After rJagged2 stimulation in vitro, the levels of Hes1, Notch1, NF-κB, RORα, GATA3 and ID2 and those of IL-4, IL-5 and IL-13 were significantly increased. These effects were abrogated by DAPT treatment. Then, ILC2s, especially those from RTB patients, induced Th2-type immune response after co-culturing with CD4+ T cells. In conclusion, our results suggest that ILC2s may promote Th2-type immune response in different stages of TB via the Notch-GATA3 pathway.
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Affiliation(s)
- Qifeng Li
- Post-Doctoral Research Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China; Xinjiang Institute of Pediatrics, Children's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830054, China.
| | - Jianfeng Zhang
- Respiratory Department, The Eighth Affiliated Hospital of Xinjiang Medical University, Urumqi 830049, China
| | - Lanhong Ma
- Respiratory Department, Children's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830054, China
| | - Chao Wu
- Department of Respiratory and Critical Care Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - Jing Zhao
- Xinjiang Institute of Pediatrics, Children's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830054, China
| | - Wenlong Guan
- Respiratory Department, The Eighth Affiliated Hospital of Xinjiang Medical University, Urumqi 830049, China
| | - Xiaochun Li
- Respiratory Department, The Eighth Affiliated Hospital of Xinjiang Medical University, Urumqi 830049, China
| | - Xiaohong Yang
- Department of Respiratory and Critical Care Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China.
| | - Fuqiang Wen
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, and Department of Respiratory and Critical Care Medicine, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China.
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10
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Ghosh P, Singh R, Ganeshpurkar A, Pokle AV, Singh RB, Singh SK, Kumar A. Cellular and molecular influencers of neuroinflammation in Alzheimer's disease: Recent concepts & roles. Neurochem Int 2021; 151:105212. [PMID: 34656693 DOI: 10.1016/j.neuint.2021.105212] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/22/2021] [Accepted: 10/10/2021] [Indexed: 01/21/2023]
Abstract
Alzheimer's disease (AD), an extremely common neurodegenerative disorder of the older generation, is one of the leading causes of death globally. Besides the conventional hallmarks i.e. Amyloid-β (Aβ) plaques and neurofibrillary tangles (NFTs), neuroinflammation also serves as a major contributing factor in the pathogenesis of AD. There are mounting evidences to support the fundamental role of cellular (microglia, astrocytes, mast cells, and T-cells) and molecular (cytokines, chemokines, caspases, and complement proteins) influencers of neuroinflammation in producing/promoting neurodegeneration and dementia in AD. Genome-wide association studies (GWAS) have revealed the involvement of various single nucleotide polymorphisms (SNPs) of genes related to neuroinflammation with the risk of developing AD. Modulating the release of the neuroinflammatory molecules and targeting their relevant mechanisms may have beneficial effects on the onset, progress and severity of the disease. Here, we review the distinct role of various mediators and modulators of neuroinflammation that impact the pathogenesis and progression of AD as well as incite further research efforts for the treatment of AD through a neuroinflammatory approach.
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Affiliation(s)
- Powsali Ghosh
- Pharmaceutical Chemistry Research Laboratory 1, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Ravi Singh
- Pharmaceutical Chemistry Research Laboratory 1, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Ankit Ganeshpurkar
- Pharmaceutical Chemistry Research Laboratory 1, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Ankit Vyankatrao Pokle
- Pharmaceutical Chemistry Research Laboratory 1, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Ravi Bhushan Singh
- Institute of Pharmacy Harischandra PG College, Bawanbigha, Varanasi, India
| | - Sushil Kumar Singh
- Pharmaceutical Chemistry Research Laboratory 1, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Ashok Kumar
- Pharmaceutical Chemistry Research Laboratory 1, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India.
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11
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Zhang P, Liu Z, Peng L, Zhou J, Wang M, Li J, Lu H, Hu C, Zhao L, Yang H, Wang Q, Fei Y, Zhang X, Zhao Y, Zeng X, Zhang W. Phenotype, function and clinical significance of innate lymphoid cells in immunoglobulin G4-related disease. Rheumatology (Oxford) 2021; 61:2197-2209. [PMID: 34554231 DOI: 10.1093/rheumatology/keab610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 07/13/2021] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE Innate immune system participates in immunoglobulin G4 related disease (IgG4-RD). While the role of innate lymphoid cells (ILCs) in IgG4-RD remains to be elucidated, we aimed to evaluate the phenotype, function and clinical significance of ILCs in IgG4-RD patients. METHODS Sixty-seven untreated IgG4-RD patients, age and sex matched healthy controls (HCs) were enrolled. Circulating and tissue infiltration of ILCs were detected by flow cytometry. Serum suppression of tumorigenicity 2 (sST2) was detected by ELISA and membrane-bound ST2 (ST2L) was detected by flow cytometry. Tissue infiltration of IL-33 was measured by immunohistochemistry staining. RT-qPCR was performed to analyze the expression pattern of ILC2 associated genes between HCs and IgG4-RD patients. In addition, correlation analysis was performed in order to evaluate clinical significance of ILCs in IgG4-RD. RESULTS The frequency of circulating pan ILCs in IgG4-RD patients was lower than in HCs. ILC2s was higher in IgG4-RD compared with HCs, whereas ILC1s was lower in IgG4-RD. sST2 and ST2L were increased in IgG4-RD than HC. Infiltration of ILC1s in submandibular glands of IgG4-RD was more prominent than ILC2s. Intracellular secretion of IL-9 was increased in ILC2s of IgG4-RD than in HCs. Circulating ILC2s correlated positively with Treg cells, the surface expression of CD154, PD-1 and CXCR5 in ILC2s correlated positively with CD19+B cells, serum IgG4 level and serum IgE, respectively. CONCLUSION ILCs and their subsets were significantly altered in IgG4-RD. We demonstrated the dysfunction of ILC2s in IgG4-RD by phenotype, correlation analysis, and function investigation, revealing ILC2s participated in the pathogenesis of IgG4-RD.
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Affiliation(s)
- Panpan Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China.,Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zheng Liu
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Linyi Peng
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Jiaxin Zhou
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Mu Wang
- Department of Stomatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
| | - Jieqiong Li
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Hui Lu
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Chaojun Hu
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Lidan Zhao
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Huaxia Yang
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Qian Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Yunyun Fei
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Xuan Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Yan Zhao
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Xiaofeng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Wen Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
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12
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Mino T, Takeuchi O. Regnase-1-related endoribonucleases in health and immunological diseases. Immunol Rev 2021; 304:97-110. [PMID: 34514623 DOI: 10.1111/imr.13023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 12/12/2022]
Abstract
Dynamic changes in gene expression are key factors in the development and activation of immune cells. RNA metabolism is one of the critical steps for the control of gene expression. Together with transcriptional regulation, mRNA decay by specific ribonucleases (RNases) plays a vital role in shaping gene expression. In addition to the canonical exoribonuclease-mediated mRNA degradation through the recognition of cis-elements in mRNA 3' untranslated regions by RNA-binding proteins (RBPs), endoribonucleases are involved in the control of mRNAs in immune cells. In this review, we gleam insights on how Regnase-1, an endoribonuclease necessary for regulating immune cell activation and maintenance of immune homeostasis, degrades RNAs involved in immune cell activation. Additionally, we provide insights on recent studies which uncover the role of Regnase-1-related RNases, including Regnase-2, Regnase-3, and Regnase-4, as well as N4BP1 and KHNYN, in immune regulation and antiviral immunity. As the dysregulation of immune mRNA decay leads to pathologies such as autoimmune diseases or impaired activation of immune responses, RNases are deemed as essential components of regulatory feedback mechanisms that modulate inflammation. Given the critical role of RNases in autoimmunity, RNases can be perceived as emerging targets in the development of novel therapeutics.
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Affiliation(s)
- Takashi Mino
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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13
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Uehata T, Takeuchi O. Post-transcriptional regulation of immunological responses by Regnase-1-related RNases. Int Immunol 2021; 33:859-865. [PMID: 34320195 DOI: 10.1093/intimm/dxab048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 07/27/2021] [Indexed: 12/20/2022] Open
Abstract
Regulation of messenger RNA (mRNA) decay plays a crucial role in the control of gene expression. Canonical mRNA decay pathways are initiated by deadenylation and decapping, and are followed by exonucleolytic degradation. However, recent studies revealed that endoribonucleolytic cleavage also mediates mRNA decay, and both exoribonucleolytic and endoribonucleolytic decay pathways are important for the regulation of immune responses. Regnase-1 functions as an endoribonuclease to control immunity by damping mRNAs. Particularly, Regnase-1 controls cytokines and other inflammatory mediators by recognizing their mRNAs via stem-loop structures present in the 3' untranslated regions. Regnase-1 was found to be critical for human inflammatory diseases such as ulcerative colitis and idiopathic pulmonary fibrosis. Furthermore, a set of Regnase-1-related RNases contribute to immune regulation as well as antiviral host defense. In this review, we provide an overview of recent findings as to immune-related RNA-binding proteins (RBPs) with an emphasis on stem-loop-mediated mRNA decay via Regnase-1 and related RNases and discuss how the function of these RBPs is regulated and contributes to inflammatory disorders.
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Affiliation(s)
- Takuya Uehata
- Laboratory of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Osamu Takeuchi
- Laboratory of Medical Chemistry, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
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14
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Akiyama T, Suzuki T, Yamamoto T. RNA decay machinery safeguards immune cell development and immunological responses. Trends Immunol 2021; 42:447-460. [PMID: 33858774 DOI: 10.1016/j.it.2021.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/30/2022]
Abstract
mRNA decay systems control mRNA abundance by counterbalancing transcription. Several recent studies show that mRNA decay pathways are crucial to conventional T and B cell development in vertebrates, in addition to suppressing autoimmunity and excessive inflammatory responses. Selective mRNA degradation triggered by the CCR4-NOT deadenylase complex appears to be required in lymphocyte development, cell quiescence, V(D)J (variable-diversity-joining) recombination, and prevention of inappropriate apoptosis in mice. Moreover, a recent study suggests that mRNA decay may be involved in preventing human hyperinflammatory disease. These findings imply that mRNA decay pathways in humans and mice do not simply maintain mRNA homeostatic turnover but can also precisely regulate immune development and immunological responses by selectively targeting mRNAs.
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Affiliation(s)
- Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, Yokohama 230-0045, Japan.
| | - Toru Suzuki
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Tadashi Yamamoto
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan; Cell Signal Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan
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15
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Froidure A, Crestani B. Regulation of immune cells in lung fibrosis: the reign of regnase-1? Eur Respir J 2021; 57:57/3/2004029. [PMID: 33707169 DOI: 10.1183/13993003.04029-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 11/01/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Antoine Froidure
- Service de pneumologie, Cliniques universitaires Saint-Luc et Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Bruno Crestani
- Université de Paris, Inserm U1152, Labex Inflamex, Paris, France.,APHP, Service de Pneumologie A, Reference center for rare pulmonary diseases, DHU APOLLO, Hôpital Bichat, Paris, France
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16
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Nakatsuka Y, Yaku A, Handa T, Vandenbon A, Hikichi Y, Motomura Y, Sato A, Yoshinaga M, Tanizawa K, Watanabe K, Hirai T, Chin K, Suzuki Y, Uehata T, Mino T, Tsujimura T, Moro K, Takeuchi O. Profibrotic function of pulmonary group 2 innate lymphoid cells is controlled by regnase-1. Eur Respir J 2021; 57:13993003.00018-2020. [PMID: 32978308 DOI: 10.1183/13993003.00018-2020] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 09/11/2020] [Indexed: 12/23/2022]
Abstract
Regnase-1 is an RNase critical for post-transcriptional control of pulmonary immune homeostasis in mice by degrading immune-related mRNAs. However, little is known about the cell types Regnase-1 controls in the lung, and its relevance to human pulmonary diseases.Regnase-1-dependent changes in lung immune cell types were examined by a competitive bone marrow transfer mouse model, and group 2 innate lymphoid cells (ILC2s) were identified. Then the associations between Regnase-1 in ILC2s and human diseases were investigated by transcriptome analysis and a bleomycin-induced pulmonary fibrosis mouse model. The clinical significance of Regnase-1 in ILC2s was further assessed using patient-derived cells.Regnase-1-deficiency resulted in the spontaneous proliferation and activation of ILC2s in the lung. Intriguingly, genes associated with pulmonary fibrosis were highly upregulated in Regnase-1-deficient ILC2s compared with wild-type, and supplementation of Regnase-1-deficient ILC2s augmented bleomycin-induced pulmonary fibrosis in mice. Regnase-1 suppresses mRNAs encoding transcription factors Gata3 and Egr1, which are potent to regulate fibrosis-associated genes. Clinically, Regnase-1 protein levels in ILC2 negatively correlated with the ILC2 population in bronchoalveolar lavage fluid. Furthermore, idiopathic pulmonary fibrosis (IPF) patients with ILC2s >1500 cells·mL-1 peripheral blood exhibited poorer prognosis than patients with lower numbers, implying the contribution of Regnase-1 in ILC2s for the progression of IPF.Collectively, Regnase-1 was identified as a critical post-transcriptional regulator of the profibrotic function of ILC2s both in mouse and human, suggesting that Regnase-1 may be a novel therapeutic target for IPF.
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Affiliation(s)
- Yoshinari Nakatsuka
- Dept of Respiratory Care and Sleep Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Dept of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ai Yaku
- Dept of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Dept of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomohiro Handa
- Dept of Advanced Medicine for Respiratory Failure, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Alexis Vandenbon
- Laboratory of Systems Virology, Dept of Biosystems Science, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Yuki Hikichi
- Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Yasutaka Motomura
- Dept of Microbiology and Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ayuko Sato
- Dept of Pathology, Hyogo College of Medicine, Hyogo, Japan
| | - Masanori Yoshinaga
- Dept of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kiminobu Tanizawa
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kizuku Watanabe
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Toyohiro Hirai
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kazuo Chin
- Dept of Respiratory Care and Sleep Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yutaka Suzuki
- Laboratory of Functional Genomics, Dept of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Takuya Uehata
- Dept of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takashi Mino
- Dept of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Kazuyo Moro
- Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan.,Dept of Microbiology and Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Osamu Takeuchi
- Dept of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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17
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Abstract
Posttranscriptional control of mRNA regulates various biological processes, including inflammatory and immune responses. RNA-binding proteins (RBPs) bind cis-regulatory elements in the 3' untranslated regions (UTRs) of mRNA and regulate mRNA turnover and translation. In particular, eight RBPs (TTP, AUF1, KSRP, TIA-1/TIAR, Roquin, Regnase, HuR, and Arid5a) have been extensively studied and are key posttranscriptional regulators of inflammation and immune responses. These RBPs sometimes collaboratively or competitively bind the same target mRNA to enhance or dampen regulatory activities. These RBPs can also bind their own 3' UTRs to negatively or positively regulate their expression. Both upstream signaling pathways and microRNA regulation shape the interactions between RBPs and target RNA. Dysregulation of RBPs results in chronic inflammation and autoimmunity. Here, we summarize the functional roles of these eight RBPs in immunity and their associated diseases.
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Affiliation(s)
- Shizuo Akira
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0874, Japan.,Department of Host Defense, Division of Host Defense, Research Institute for Microbial Diseases (RIMD), Osaka University, Osaka 565-0874, Japan;
| | - Kazuhiko Maeda
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0874, Japan.,Department of Host Defense, Division of Host Defense, Research Institute for Microbial Diseases (RIMD), Osaka University, Osaka 565-0874, Japan;
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18
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Musson R, Szukała W, Jura J. MCPIP1 RNase and Its Multifaceted Role. Int J Mol Sci 2020; 21:ijms21197183. [PMID: 33003343 PMCID: PMC7582464 DOI: 10.3390/ijms21197183] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 12/11/2022] Open
Abstract
Inflammation is an organism’s physiological response to harmful septic and aseptic stimuli. This process begins locally through the influx of immune system cells to the damaged tissue and the subsequent activation and secretion of inflammatory mediators to restore homeostasis in the organism. Inflammation is regulated at many levels, and one of these levels is post-transcriptional regulation, which controls the half-life of transcripts that encode inflammatory mediators. One of the proteins responsible for controlling the amount of mRNA in a cell is the RNase monocyte chemoattractant protein-induced protein 1 (MCPIP1). The studies conducted so far have shown that MCPIP1 is involved not only in the regulation of inflammation but also in many other physiological and pathological processes. This paper provides a summary of the information on the role of MCPIP1 in adipogenesis, angiogenesis, cell differentiation, cancer, and skin inflammation obtained to date.
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19
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Fischer M, Weinberger T, Schulz C. The immunomodulatory role of Regnase family RNA-binding proteins. RNA Biol 2020; 17:1721-1726. [PMID: 32752923 DOI: 10.1080/15476286.2020.1795584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
RNA-binding proteins regulate RNA fate and govern post-transcriptional gene regulation. A new family of RNA-binding proteins is represented by regulatory RNases (Regnase, also known as Zc3h12 or MCPIP), which have emerged as important players in immune homoeostasis. Four members, Regnase1-4, have been identified to date. Here we summarize recent findings on the role of Regnase in the regulation of RNA biology and its consequences for cell functions and inflammatory processes.
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Affiliation(s)
- Maximilian Fischer
- Medizinische Klinik und Poliklinik I, Ludwig-Maximilians-Universitaet , Munich, Germany.,German Center for Cardiovascular Research (DZHK) , Munich, Germany
| | - Tobias Weinberger
- Medizinische Klinik und Poliklinik I, Ludwig-Maximilians-Universitaet , Munich, Germany.,German Center for Cardiovascular Research (DZHK) , Munich, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Ludwig-Maximilians-Universitaet , Munich, Germany.,German Center for Cardiovascular Research (DZHK) , Munich, Germany
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