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Zhang W, Li Y, Xin S, Yang L, Jiang M, Xin Y, Wang Y, Cao P, Zhang S, Yang Y, Lu J. The emerging roles of IFIT3 in antiviral innate immunity and cellular biology. J Med Virol 2023; 95:e28259. [PMID: 36305096 DOI: 10.1002/jmv.28259] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/23/2022] [Accepted: 10/25/2022] [Indexed: 01/11/2023]
Abstract
The interferon-inducible protein with tetrapeptide repeats 3 (IFIT3) is one of the most important members in both the IFIT family and interferon-stimulated genes family. IFIT3 has typical features of the IFIT family in terms of gene and protein structures, and is able to be activated through the classical PRRs-IFN-JAK/STAT pathway. A variety of viruses can induce the expression of IFIT3, which in turn inhibits the replication of viruses, with the underlying mechanism showing its crucial role in antiviral innate immunity. Emerging studies have also identified that IFIT3 is involved in cellular biology changes, including cell proliferation, apoptosis, differentiation, and cancer development. In this review, we summarize the characteristics of IFIT3 with respect to molecular structure and regulatory pathways, highlighting the role of IFIT3 in antiviral innate immunity, as well as its diverse biological roles. We also discuss the potential of IFIT3 as a biomarker in disease diagnosis and therapy.
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Affiliation(s)
- Wentao Zhang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Yanling Li
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Shuyu Xin
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Li Yang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Mingjuan Jiang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Yujie Xin
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Yiwei Wang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Pengfei Cao
- NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Senmiao Zhang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Yang Yang
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
| | - Jianhong Lu
- Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan, Changsha, China.,Department of Microbiology, School of Basic Medical Science, Central South University, Hunan, Changsha, China.,NHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Hunan, Changsha, China.,Department of Hematology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Hunan, Changsha, China
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2
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West PW, Bulfone-Paus S. Mast cell tissue heterogeneity and specificity of immune cell recruitment. Front Immunol 2022; 13:932090. [PMID: 35967445 PMCID: PMC9374002 DOI: 10.3389/fimmu.2022.932090] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Mast cells occupy a unique niche within tissues as long lived perpetrators of IgE mediated hypersensitivity and anaphylaxis, as well as other immune responses. However, mast cells are not identical in different tissues and the impact of this tissue heterogeneity on the interaction with other immune cells and on defined immune responses is still unclear. In this review, we synthesize the characteristics of mast cell heterogeneity in the gut and the skin. Furthermore, we attempt to connect mast cell heterogeneity with functional diversity by exploring differences in mast cell-induced immune cell recruitment in these two model organs. The differential expression of certain receptors on mast cells of different tissues, notably tissue-specific expression patterns of integrins, complement receptors and MRGPRX2, could indicate that tissue environment-dependent factors skew mast cell-immune cell interactions, for example by regulating the expression of these receptors.
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Affiliation(s)
| | - Silvia Bulfone-Paus
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
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3
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Ogawa Y, Kinoshita M, Kawamura T, Shimada S. Intracellular TLRs of Mast Cells in Innate and Acquired Immunity. Handb Exp Pharmacol 2022; 276:133-159. [PMID: 34505203 DOI: 10.1007/164_2021_540] [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] [Indexed: 06/13/2023]
Abstract
Mast cells (MCs) distribute to interface tissues with environment, such as skin, airway, and gut mucosa, thereby functioning as the sentinel against invading allergens and pathogens. To respond to and exclude these external substances promptly, MCs possess granules containing inflammatory mediators, including heparin, proteases, tumor necrosis factor, and histamine, and produce these mediators as a consequence of degranulation within minutes of activation. As a delayed response to external substances, MCs de novo synthesize inflammatory mediators, such as cytokines and chemokines, by sensing pathogen- and damage-associated molecular patterns through their pattern recognition receptors, including Toll-like receptors (TLRs). A substantial number of studies have reported immune responses by MCs through surface TLR signaling, particularly TLR2 and TLR4. However, less attention has been paid to immune responses through nucleic acid-recognizing intracellular TLRs. Among intracellular TLRs, human and rodent MCs express TLR3, TLR7, and TLR9, but not TLR8. Some virus infections modulate intracellular TLR expression in MCs. MC-derived mediators, such as histamine, cysteinyl leukotrienes, LL-37, and the granulocyte-macrophage colony-stimulating factor, have also been reported to modulate intracellular TLR expression in an autocrine and/or paracrine fashion. Synthetic ligands for intracellular TLRs and some viruses are sensed by intracellular TLRs of MCs, leading to the production of inflammatory cytokines and chemokines including type I interferons. These MC responses initiate and facilitate innate responses and the subsequent recruitment of additional innate effector cells. MCs also associate with the regulation of adaptive immunity. In this overview, the expression of intracellular TLRs in MCs and the recognition of pathogens, including viruses, by intracellular TLRs in MCs were critically evaluated.
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Affiliation(s)
- Youichi Ogawa
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.
| | - Manao Kinoshita
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Tatsuyoshi Kawamura
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shinji Shimada
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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4
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Cabanillas B, Akdis CA, Novak N. COVID-19 vaccine anaphylaxis: IgE, complement or what else? A reply to: "COVID-19 vaccine anaphylaxis: PEG or not?". Allergy 2021; 76:1938-1940. [PMID: 34128561 PMCID: PMC8441702 DOI: 10.1111/all.14725] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 01/31/2023]
Affiliation(s)
- Beatriz Cabanillas
- Department of Allergy Research Institute Hospital Doce de Octubre Madrid Spain
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
| | - Natalija Novak
- Department of Dermatology and Allergy University Hospital Bonn Bonn Germany
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5
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Cholesterol loading suppresses the atheroinflammatory gene polarization of human macrophages induced by colony stimulating factors. Sci Rep 2021; 11:4923. [PMID: 33649397 PMCID: PMC7921113 DOI: 10.1038/s41598-021-84249-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/05/2021] [Indexed: 12/11/2022] Open
Abstract
In atherosclerotic lesions, blood-derived monocytes differentiate into distinct macrophage subpopulations, and further into cholesterol-filled foam cells under a complex milieu of cytokines, which also contains macrophage-colony stimulating factor (M-CSF) and granulocyte–macrophage-colony stimulating factor (GM-CSF). Here we generated human macrophages in the presence of either M-CSF or GM-CSF to obtain M-MØ and GM-MØ, respectively. The macrophages were converted into cholesterol-loaded foam cells by incubating them with acetyl-LDL, and their atheroinflammatory gene expression profiles were then assessed. Compared with GM-MØ, the M-MØ expressed higher levels of CD36, SRA1, and ACAT1, and also exhibited a greater ability to take up acetyl-LDL, esterify cholesterol, and become converted to foam cells. M-MØ foam cells expressed higher levels of ABCA1 and ABCG1, and, correspondingly, exhibited higher rates of cholesterol efflux to apoA-I and HDL2. Cholesterol loading of M-MØ strongly suppressed the high baseline expression of CCL2, whereas in GM-MØ the low baseline expression CCL2 remained unchanged during cholesterol loading. The expression of TNFA, IL1B, and CXCL8 were reduced in LPS-activated macrophage foam cells of either subtype. In summary, cholesterol loading converged the CSF-dependent expression of key genes related to intracellular cholesterol balance and inflammation. These findings suggest that transformation of CSF-polarized macrophages into foam cells may reduce their atheroinflammatory potential in atherogenesis.
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6
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Paivandy A, Pejler G. Novel Strategies to Target Mast Cells in Disease. J Innate Immun 2021; 13:131-147. [PMID: 33582673 DOI: 10.1159/000513582] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/03/2020] [Indexed: 12/12/2022] Open
Abstract
Mast cells (MCs) are versatile effector cells of the immune system, characterized by a large content of secretory granules containing a variety of inflammatory mediators. They are implicated in the host protection toward various external insults, but are mostly well known for their detrimental impact on a variety of pathological conditions, including allergic disorders such as asthma and a range of additional disease settings. Based on this, there is currently a large demand for therapeutic regimens that can dampen the detrimental impact of MCs in these respective pathological conditions. This can be accomplished by several strategies, including targeting of individual mediators released by MCs, blockade of receptors for MC-released compounds, inhibition of MC activation, limiting mast cell growth or by inducing mast cell apoptosis. Here, we review the currently available and emerging regimens to interfere with harmful mast cell activities in asthma and other pathological settings and discuss the advantages and limitations of such strategies.
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Affiliation(s)
- Aida Paivandy
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden,
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.,Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
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7
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Type I Interferon α/β Receptor-Mediated Signaling Negatively Regulates Antiviral Cytokine Responses in Murine Bone-Marrow-Derived Mast Cells and Protects the Cells from Virus-Induced Cell Death. Int J Mol Sci 2020; 21:ijms21239041. [PMID: 33261178 PMCID: PMC7729593 DOI: 10.3390/ijms21239041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/10/2020] [Accepted: 11/23/2020] [Indexed: 12/20/2022] Open
Abstract
Mast cells (MCs) are critical for initiating inflammatory responses to pathogens including viruses. Type I interferons (IFNs) that exert their antiviral functions by interacting with the type I IFN receptor (IFNAR) play a central role in host cellular responses to viruses. Given that virus-induced excessive toxic inflammatory responses are associated with aberrant IFNAR signaling and considering MCs are an early source of inflammatory cytokines during viral infections, we sought to determine whether IFNAR signaling plays a role in antiviral cytokine responses of MCs. IFNAR-intact, IFNAR-blocked, and IFNAR-knockout (IFNAR−/−) bone-marrow-derived MCs (BMMCs) were treated in vitro with a recombinant vesicular stomatitis virus (rVSVΔm51) to assess cytokine production by these cells. All groups of MCs produced the cytokines interleukin-6 and tumor necrosis factor-α in response to rVSVΔm51. However, production of the cytokines was lowest in IFNAR-intact cells as compared with IFNAR−/− or IFNAR-blocked cells at 20 h post-stimulation. Surprisingly, rVSVΔm51 was capable of infecting BMMCs, but functional IFNAR signaling was able to protect these cells from virus-induced death. This study showed that BMMCs produced pro-inflammatory cytokines in response to rVSVΔm51 and that IFNAR signaling was required to down-modulate these responses and protect the cells from dying from viral infection.
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Yamada M, Uehara T, Suzuki H, Takenouchi T, Inui A, Ikemiyagi M, Kamimaki I, Kosaki K. Shortfall of exome analysis for diagnosis of Shwachman-Diamond syndrome: Mismapping due to the pseudogene SBDSP1. Am J Med Genet A 2020; 182:1631-1636. [PMID: 32412173 DOI: 10.1002/ajmg.a.61598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/28/2020] [Accepted: 04/01/2020] [Indexed: 01/11/2023]
Abstract
Shwachman-Diamond syndrome characterized by metaphyseal dysplasia, pancreatic insufficiency, and pancytopenia is caused by biallelic mutations in SBDS. Gene conversion between SBDS and its pseudogene SBDSP1 is the major cause. Here, we report two unrelated patients with Shwachman-Diamond syndrome who were shown to be compound heterozygotes for relatively frequent pathogenic alleles (the 258+2T>C allele and another allele composed of 183-184TA>CT and 201A>G) using an established polymerase chain reaction sequencing assay with SBDS-specific primers. Exome analysis of the patients showed discrepant results: 258+2T>C with variant allele frequency around 0.85, and no variants detected for the 183-184TA>CT allele. Parental exome analysis of the two families further supported this notion. Confronted with two patients with an unexpected segregation pattern, we performed a transcriptome analysis of peripheral blood-derived mRNA to demonstrate that the results were compatible with those obtained using SBDS-specific PCR primers. Both alleles could be accounted for by gene conversion events. The diagnostic discrepancy can be accounted for by a decreased efficiency in the computational mapping of the reads with 183-184TA>CT and 201A>G to the reference sequence of the SBDS locus during exome analysis. This report highlights the pitfall of exome analysis for genes with pseudogenes, such as SBDS and the alternative use of RNA-seq is recommended to circumvent this problem.
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Affiliation(s)
- Mamiko Yamada
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Tomoko Uehara
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Hisato Suzuki
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Toshiki Takenouchi
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Ayano Inui
- Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohama City Tobu Hospital, Kanagawa, Japan
| | - Masako Ikemiyagi
- Department of Pediatrics, National Hospital Organization Saitama Hospital, Saitama, Japan
| | - Isamu Kamimaki
- Department of Pediatrics, National Hospital Organization Saitama Hospital, Saitama, Japan
| | - Kenjiro Kosaki
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
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The Response of Tissue Mast Cells to TLR3 Ligand Poly(I:C) Treatment. J Immunol Res 2020; 2020:2140694. [PMID: 32185237 PMCID: PMC7060451 DOI: 10.1155/2020/2140694] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/23/2020] [Accepted: 02/01/2020] [Indexed: 12/18/2022] Open
Abstract
Mast cells (MCs) are found mainly at the anatomical sites exposed to the external environment; thus, they are localized close to blood vessels, lymphatic vessels, and a multitude of immune cells. Moreover, those cells can recognize invading pathogens through a range of surface molecules known as pathogen recognition receptors (PRRs), mainly Toll-like receptors (TLRs). MCs are extensively engaged in the control and clearance of bacterial infections, but much less is known about their contribution to antiviral host response as well as pathomechanisms of virus-induced diseases. In the study, we employed in vivo differentiated mature tissue mast cells freshly isolated from rat peritoneal cavity. Here, we demonstrated that rat peritoneal mast cells (rPMCs) express viral dsRNA-specific TLR3 molecule (intracellularly and on the cell surface) as well as other proteins associated with cellular antiviral response: IRF3, type I and II IFN receptors, and MHC I. We found that exposure of rPMCs to viral dsRNA mimic, i.e., poly(I:C), induced transient upregulation of surface TLR3 (while temporarily decreased TLR3 intracellular expression), type II IFN receptor, and MHC I. TLR3 ligand-stimulated rPMCs did not degranulate but generated and/or released type I IFNs (IFN-α and IFNβ) as well as proinflammatory lipid mediators (cysLTs), cytokines (TNF, IL-1β), and chemokines (CCL3, CXCL8). We documented that rPMC priming with poly(I:C) did not affect FcεRI-dependent degranulation. However, their costimulation with TLR3 agonist and anti-IgE led to a significant increase in cysLT and TNF secretion. Our findings confirm that MCs may serve as active participants in the antiviral immune response. Presented data on modulated FcεRI-mediated MC secretion of mediators upon poly(I:C) treatment suggests that dsRNA-type virus infection could influence the severity of allergic reactions.
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Agier J, Różalska S, Wiktorska M, Żelechowska P, Pastwińska J, Brzezińska-Błaszczyk E. The RLR/NLR expression and pro-inflammatory activity of tissue mast cells are regulated by cathelicidin LL-37 and defensin hBD-2. Sci Rep 2018; 8:11750. [PMID: 30082780 PMCID: PMC6079022 DOI: 10.1038/s41598-018-30289-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/27/2018] [Indexed: 12/27/2022] Open
Abstract
Considering the significance of mast cells (MCs) in the course of various physiological and pathological processes, and the pivotal role of endogenous molecules, i.e., cathelicidins and defensins as multifunctional modulators, the study examines the constitutive and cathelicidin LL-37/defensin hBD-2-induced expression of certain NLRs and RLRs, i.e., NOD1, NOD2, and RIG-I, in fully-mature tissue MCs, and the impact of LL-37 and hBD-2 on MC pro-inflammatory activity. All experiments were carried out in vitro on freshly-isolated peritoneal (P)MCs. qRT-PCR, western blotting, flow cytometry, and confocal microscopy were used to evaluate both constitutive and LL-37/hBD-2-induced expression of NOD1, NOD2, and RIG-I receptors. ROS was determined using H2DCFDA, and Boyden microchamber assay was used to define the migratory response. Standard techniques assessed histamine, cysLT, and chemokine generation. PMCs express NOD1, NOD2, and RIG-I constitutively. LL-37 and hBD-2 enhance the expression and induce translocation of the studied receptors and directly activate the pro-inflammatory and migratory responses of PMCs. Observations demonstrate that LL-37 and hBD-2 might augment MC capability and sensitivity to NLR and RLR ligands and strengthen the role of MCs in inflammation.
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Affiliation(s)
- Justyna Agier
- Department of Experimental Immunology, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Sylwia Różalska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Magdalena Wiktorska
- Department of Molecular Cell Mechanisms, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Paulina Żelechowska
- Department of Experimental Immunology, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Joanna Pastwińska
- Department of Experimental Immunology, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
- Laboratory of Cellular Immunology, Institute of Medical Biology, Polish Academy of Sciences, Lodz, Poland
| | - Ewa Brzezińska-Błaszczyk
- Department of Experimental Immunology, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland.
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11
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An overview of mast cell pattern recognition receptors. Inflamm Res 2018; 67:737-746. [PMID: 29909493 PMCID: PMC6096630 DOI: 10.1007/s00011-018-1164-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/20/2018] [Accepted: 06/14/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Mast cells (MCs) are long-lived immune cells of the connective tissue which play a key role in development and amplification of inflammatory process initiated inter alia by allergic reactions or microbial infections. They reside in strategic locations in the body that are notably exposed to deleterious factors disturbing homeostasis, which enables them to become one of the first-line defense strategy. MCs have developed a wide range of various mechanisms to deal with invading intruders and harmful endogenic factors. Those include storage and synthesis with a subsequent release of inflammatory mediators, forming of MC-extracellular traps, and phagocytosis. FINDINGS Particularly, important role in microbial sensing is achieved due to the presence of different pattern recognition receptors (PRRs). The best-described receptors are Toll-like receptors activated by different pathogen- and damage-associated molecular patterns. However, MCs express also C-type lectin receptors specialized in antifungal defense, NOD-like receptors detecting bacterial peptidoglycans, and RIG-like receptors relevant in viral sensing. CONCLUSION This review will focus on the current knowledge of PRRs expressed within different types of MCs.
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Oldford SA, Salsman SP, Portales-Cervantes L, Alyazidi R, Anderson R, Haidl ID, Marshall JS. Interferon α2 and interferon γ induce the degranulation independent production of VEGF-A and IL-1 receptor antagonist and other mediators from human mast cells. IMMUNITY INFLAMMATION AND DISEASE 2017; 6:176-189. [PMID: 29235261 PMCID: PMC5818443 DOI: 10.1002/iid3.211] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/07/2017] [Accepted: 11/20/2017] [Indexed: 01/05/2023]
Abstract
Background Mast cells are resident immune effector cells, often studied in the context of allergic disease. Found in substantial numbers at sites of potential infection they are increased at sites of angiogenesis and can be pivotal for the sensing and clearance of a variety of pathogens. Interferons (IFNs) are cytokines that are critical for host defence against intracellular pathogens. Increased levels of IFNs are observed during viral infection and in autoimmune diseases. IFNs are also widely used therapeutically and have been examined in the therapy of severe asthma. Objective To define the selective human mast cell cytokine and chemokine response following activation with type I or type II IFN's. Methods The ability of both IFNα2 and IFNγ to induce cytokine production by human cord blood‐derived mast cells was examined in vitro. Cytokine and chemokine production at 6 and 24 h was assessed by multiplex protein analysis. Degranulation was assessed by β‐hexosaminidase release. Mast cells were also treated with reovirus or respiratory syncytial virus and their production of CXCL10, IL‐1 receptor antagonist (IL‐1Ra), and vascular endothelial growth factor (VEGF) examined after 24 h. Results In addition to increased expression of classical IFN response genes, such as CXCL10, small but significant increases in CCL5 and IL‐17 production were observed following IFN activation. Notably, human mast cells produced both VEGF and IL‐1Ra in a dose dependent manner. These responses occurred in the absence of mast cell degranulation by a mechanism consistent with classical IFN signaling. Both reovirus and respiratory syncytial virus infection of mast cells, were also associated with IFN‐dependent IL‐1Ra expression. Conclusion and Clinical Relevance Our findings demonstrate that IFNs have profound impact on cytokine and chemokine expression by human mast cells, alone or in the context of viral infection. Mast cell VEGF and IL‐1Ra responses to IFNs could impact the regulation of local inflammatory responses and subsequent tissue remodeling.
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Affiliation(s)
- Sharon A Oldford
- Dalhousie Inflammation Group, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada.,Canadian Center for Vaccinology, IWK Health Centre, Halifax, Nova Scotia, Canada
| | - Suzanne P Salsman
- Dalhousie Inflammation Group, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Liliana Portales-Cervantes
- Dalhousie Inflammation Group, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Raidan Alyazidi
- Dalhousie Inflammation Group, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada.,Faculty of Medicine, Department of Pediatrics, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Robert Anderson
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada.,Canadian Center for Vaccinology, IWK Health Centre, Halifax, Nova Scotia, Canada.,Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Ian D Haidl
- Dalhousie Inflammation Group, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Jean S Marshall
- Dalhousie Inflammation Group, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada
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Sontheimer C, Liggitt D, Elkon KB. Ultraviolet B Irradiation Causes Stimulator of Interferon Genes-Dependent Production of Protective Type I Interferon in Mouse Skin by Recruited Inflammatory Monocytes. Arthritis Rheumatol 2017; 69:826-836. [PMID: 27863141 DOI: 10.1002/art.39987] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 11/03/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Photosensitivity is common in patients with systemic lupus erythematosus, although the mechanisms linking ultraviolet (UV) light to flares are not well understood. We undertook this study to determine whether repetitive UVB exposure could induce type I interferon (IFN) production in normal mouse skin, and to investigate the roles of inflammatory monocytes and plasmacytoid dendritic cells (PDCs) in type I IFN production and development of UVB irradiation-induced inflammation. METHODS Mice were irradiated with UVB at 100 mJ/cm2 for 5 days, and cutaneous manifestations were examined by messenger RNA expression of inflammatory and type I IFN response genes, histology, and flow cytometry. Inflammatory monocyte and PDC depletion experiments were performed in CCR2-diphtheria toxin receptor (DTR)-transgenic mice and blood dendritic cell antigen 2-DTR-transgenic mice. The roles of type I IFN and of the adaptor protein stimulator of IFN genes (STING) in UVB irradiation-induced inflammation were investigated using IFN-α/β/ω receptor (IFNAR)-knockout mice and STING-knockout mice. RESULTS Repeated UVB irradiation stimulated an inflammatory cell infiltrate and induction of type I IFN and proinflammatory cytokines. Interestingly, the type I IFN response was independent of PDCs but dependent on inflammatory monocytes, which were recruited following UVB irradiation. The adaptor protein STING was necessary for both type I IFN and proinflammatory cytokine expression in the skin. UVB-irradiated IFNAR-knockout mice showed increased levels of proinflammatory genes and more severe inflammation by histology, suggesting a protective role for type I IFN. CONCLUSION In wild-type mice, repeated doses of UVB irradiation induce monocyte-dependent and PDC-independent expression of type I IFN together with expression of other proinflammatory cytokines. Induction is dependent on the adaptor protein STING. Surprisingly, studies using IFNAR-deficient mice revealed that type I IFN protects against UVB irradiation-induced skin inflammation, in part by attenuating proinflammatory cytokine expression and limiting tissue damage.
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Akoto C, Davies DE, Swindle EJ. Mast cells are permissive for rhinovirus replication: potential implications for asthma exacerbations. Clin Exp Allergy 2017; 47:351-360. [PMID: 28008678 PMCID: PMC5396281 DOI: 10.1111/cea.12879] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/28/2016] [Accepted: 11/22/2016] [Indexed: 01/19/2023]
Abstract
BACKGROUND Human rhinoviruses (HRVs) are a major trigger of asthma exacerbations, with the bronchial epithelium being the major site of HRV infection and replication. Mast cells (MCs) play a key role in asthma where their numbers are increased in the bronchial epithelium with increasing disease severity. OBJECTIVE In view of the emerging role of MCs in innate immunity and increased localization to the asthmatic bronchial epithelium, we investigated whether HRV infection of MCs generated innate immune responses which were protective against infection. METHODS The LAD2 MC line or primary human cord blood-derived MCs (CBMCs) were infected with HRV or UV-irradiated HRV at increasing multiplicities of infection (MOI) without or with IFN-β or IFN-λ. After 24 h, innate immune responses were assessed by RT-qPCR and IFN protein release by ELISA. Viral replication was determined by RT-qPCR and virion release by TCID50 assay. RESULTS HRV infection of LAD2 MCs induced expression of IFN-β, IFN-λ and IFN-stimulated genes. However, LAD2 MCs were permissive for HRV replication and release of infectious HRV particles. Similar findings were observed with CBMCs. Neutralization of the type I IFN receptor had minimal effects on viral shedding, suggesting that endogenous type I IFN signalling offered limited protection against HRV. However, augmentation of these responses by exogenous IFN-β, but not IFN-λ, protected MCs against HRV infection. CONCLUSION AND CLINICAL RELEVANCE MCs are permissive for the replication and release of HRV, which is prevented by exogenous IFN-β treatment. Taken together, these findings suggest a novel mechanism whereby MCs may contribute to HRV-induced asthma exacerbations.
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Affiliation(s)
- C Akoto
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, University Hospital Southampton, Southampton, UK
| | - D E Davies
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, University Hospital Southampton, Southampton, UK.,NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton, Southampton, UK
| | - E J Swindle
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, University Hospital Southampton, Southampton, UK.,NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton, Southampton, UK
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15
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Mast cells in gastrointestinal disorders. Eur J Pharmacol 2016; 778:139-45. [DOI: 10.1016/j.ejphar.2016.02.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 01/25/2016] [Accepted: 02/03/2016] [Indexed: 01/01/2023]
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16
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Hoffmann HJ. News in Cellular Allergology: A Review of the Human Mast Cell and Basophil Granulocyte Literature from January 2013 to May 2015. Int Arch Allergy Immunol 2016; 168:253-62. [DOI: 10.1159/000443960] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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17
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Dauletbaev N, Cammisano M, Herscovitch K, Lands LC. Stimulation of the RIG-I/MAVS Pathway by Polyinosinic:Polycytidylic Acid Upregulates IFN-β in Airway Epithelial Cells with Minimal Costimulation of IL-8. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2015; 195:2829-41. [PMID: 26283481 DOI: 10.4049/jimmunol.1400840] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/22/2015] [Indexed: 12/24/2022]
Abstract
Pharmacological stimulation of the antiviral cytokine IFN-β in the airways may help to counter deleterious virus-induced exacerbations in chronic inflammatory lung diseases (asthma, chronic obstructive pulmonary disease, or cystic fibrosis). Polyinosinic-polycytidylic acid [poly(I:C)] is a known inducer of IFN-β but also costimulates an inflammatory response. The latter response is undesirable given the pre-existing airway inflammation in these diseases. The objective of our study was to identify conditions for poly(I:C) to selectively upregulate IFN-β in airway epithelial cells without a concomitant inflammatory response. The inflammatory response was gauged by production of the chemokine IL-8. Using cell lines and primary airway epithelial cells (both submerged and well-differentiated), we observed that pure poly(I:C) stimulated IFN-β mainly through the TLR3/TRIF pathway and IL-8 through an unidentified pathway. The magnitude of the IL-8 response stimulated by pure poly(I:C) matched or even exceeded that of IFN-β. Furthermore, this IL-8 response could not be pharmacologically downregulated without affecting IFN-β. In contrast, we show that stimulation of the RIG-I/MAVS pathway, such as when poly(I:C) is delivered intracellularly in a complex with liposomes or via nucleofection, selectively stimulates IFN-β with low IL-8 costimulation. The magnitude of IFN-β stimulation by liposome-encapsulated poly(I:C) is markedly diminished in well-differentiated cells. In conclusion, it is feasible to augment IFN-β production in airway epithelial cells without excessive costimulation of IL-8 if the RIG-I/MAVS pathway is stimulated, such as via liposomal delivery of poly(I:C). Better cytoplasmic delivery vehicles are needed to efficiently stimulate this pathway in well-differentiated cells.
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Affiliation(s)
- Nurlan Dauletbaev
- The Research Institute of McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Maria Cammisano
- The Research Institute of McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Kassey Herscovitch
- The Research Institute of McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Larry C Lands
- Respiratory Medicine, Montreal Children's Hospital, Montreal, Quebec H4A 3J1, Canada
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Graham AC, Temple RM, Obar JJ. Mast cells and influenza a virus: association with allergic responses and beyond. Front Immunol 2015; 6:238. [PMID: 26042121 PMCID: PMC4435071 DOI: 10.3389/fimmu.2015.00238] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 05/01/2015] [Indexed: 12/07/2022] Open
Abstract
Influenza A virus (IAV) is a widespread infectious agent commonly found in mammalian and avian species. In humans, IAV is a respiratory pathogen that causes seasonal infections associated with significant morbidity in young and elderly populations, and has a large economic impact. Moreover, IAV has the potential to cause both zoonotic spillover infection and global pandemics, which have significantly greater morbidity and mortality across all ages. The pathology associated with these pandemic and spillover infections appear to be the result of an excessive inflammatory response leading to severe lung damage, which likely predisposes the lungs for secondary bacterial infections. The lung is protected from pathogens by alveolar epithelial cells, endothelial cells, tissue resident alveolar macrophages, dendritic cells, and mast cells. The importance of mast cells during bacterial and parasitic infections has been extensively studied; yet, the role of these hematopoietic cells during viral infections is only beginning to emerge. Recently, it has been shown that mast cells can be directly activated in response to IAV, releasing mediators such histamine, proteases, leukotrienes, inflammatory cytokines, and antiviral chemokines, which participate in the excessive inflammatory and pathological response observed during IAV infections. In this review, we will examine the relationship between mast cells and IAV, and discuss the role of mast cells as a potential drug target during highly pathological IAV infections. Finally, we proposed an emerging role for mast cells in other viral infections associated with significant host pathology.
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Affiliation(s)
- Amy C Graham
- Department of Microbiology and Immunology, Montana State University , Bozeman, MT , USA
| | - Rachel M Temple
- Department of Microbiology and Immunology, Montana State University , Bozeman, MT , USA
| | - Joshua J Obar
- Department of Microbiology and Immunology, Montana State University , Bozeman, MT , USA
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Tsutsui-Takeuchi M, Ushio H, Fukuda M, Yamada T, Niyonsaba F, Okumura K, Ogawa H, Ikeda S. Roles of retinoic acid-inducible gene-I-like receptors (RLRs), Toll-like receptor (TLR) 3 and 2'-5' oligoadenylate synthetase as viral recognition receptors on human mast cells in response to viral infection. Immunol Res 2015; 61:240-9. [PMID: 25550087 PMCID: PMC4336646 DOI: 10.1007/s12026-014-8617-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To investigate the anti-viral responses of human mast cells, we performed PCR array analysis of these cells after infection with vesicular stomatitis virus (VSV). PCR array analysis revealed that human mast cells up-regulated several anti-viral genes, including melanoma differentiation-associated gene 5, retinoic acid-inducible gene-I, and Toll-like receptor 3, together with type I interferons and chemokines, upon VSV infection. Additionally, we found that 2'-5' oligoadenylate synthetase, which also works as a virus recognition receptor by activating the latent form of RNase L, leading to viral RNA degradation, was up-regulated in human mast cells upon VSV infection. Moreover, small interfering RNA analysis to identify the receptors responsible for mast cell activation by VSV revealed that these receptors reciprocally cooperate to produce anti-viral cytokines and chemokines, inhibiting VSV replication. Our findings suggest that human mast cells produce cytokines and chemokines using several viral recognition receptors, leading to the inhibition of viral replication. These data provide novel information that improves our understanding of the roles of human mast cells in immune responses against viruses.
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Affiliation(s)
- Mizuho Tsutsui-Takeuchi
- Department of Dermatology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421 Japan
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Hiroko Ushio
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Minoru Fukuda
- Department of Infection Control Science, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Takahiko Yamada
- Department of Dermatology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421 Japan
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
| | - François Niyonsaba
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Hideoki Ogawa
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Shigaku Ikeda
- Department of Dermatology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421 Japan
- Atopy (Allergy) Research Center, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421 Japan
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Vasiadi M, Newman J, Theoharides TC. Isoflavones inhibit poly(I:C)-induced serum, brain, and skin inflammatory mediators - relevance to chronic fatigue syndrome. J Neuroinflammation 2014; 11:168. [PMID: 25359293 PMCID: PMC4236420 DOI: 10.1186/s12974-014-0168-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 09/17/2014] [Indexed: 02/06/2023] Open
Abstract
Background Chronic Fatigue Syndrome (CFS) is a neuroimmunoendocrine disease affecting about 1% of the US population, mostly women. It is characterized by debilitating fatigue for six or more months in the absence of cancer or other systemic diseases. Many CFS patients also have fibromyalgia and skin hypersensitivity that worsen with stress. Corticotropin-releasing hormone (CRH) and neurotensin (NT), secreted under stress, activate mast cells (MC) necessary for allergic reactions to release inflammatory mediators that could contribute to CFS symptoms. Objective To investigate the effect of isoflavones on the action of polyinosinic:polycytidylic acid (poly(I:C)), with or without swim stress, on mouse locomotor activity and inflammatory mediator expression, as well as on human MC activation. Methods Female C57BL/6 mice were randomly divided into four groups: (a) control/no-swim, (b) control/swim, (c) polyinosinic:polycytidylic acid (poly(I:C))/no swim, and (d) polyinosinic:polycytidylic acid (poly(I:C))/swim. Mice were provided with chow low or high in isoflavones for 2 weeks prior to ip injection with 20 mg/kg poly(I:C) followed or not by swim stress for 15 minutes. Locomotor activity was monitored overnight and animals were sacrificed the following day. Brain and skin gene expression, as well as serum levels, of inflammatory mediators were measured. Data were analyzed using the non-parametric Mann-Whitney U-test. Results Poly(I:C)-treated mice had decreased locomotor activity over 24 hours, and increased serum levels of TNF-α, IL-6, KC (IL-8/CXCL8 murine homolog), CCL2,3,4,5, CXCL10, as well as brain and skin gene expression of TNF, IL-6, KC (Cxcl1, IL8 murine homolog), CCL2, CCL4, CCL5 and CXCL10. Histidine decarboxylase (HDC) and NT expression were also increased, but only in the skin, over the same period. High isoflavone diet reversed these effects. Conclusion Poly(I:C) treatment decreased mouse locomotor activity and increased serum levels and brain and skin gene expression of inflammatory mediators. These effects were inhibited by isoflavones that may prove useful in CFS. Electronic supplementary material The online version of this article (doi:10.1186/s12974-014-0168-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Magdalini Vasiadi
- Department of Integrative Physiology and Pathobiology, Molecular Immunopharmacology and Drug Discovery Laboratory, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA. .,Graduate Program in Pharmacology and Experimental Therapeutics, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA.
| | - Jennifer Newman
- Department of Neuroscience, Tufts University, School of Medicine, Boston, MA, USA.
| | - Theoharis C Theoharides
- Department of Integrative Physiology and Pathobiology, Molecular Immunopharmacology and Drug Discovery Laboratory, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA. .,Graduate Program in Pharmacology and Experimental Therapeutics, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA. .,Department of Internal Medicine, Tufts University School of Medicine and Tufts Medical Center, Boston, MA, USA.
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Moret FM, Radstake TRDJ, van Roon JAG. Targeting Th2-typified immune responses to prevent immunopathology in rheumatic diseases: belittled therapeutic strategies? Ann Rheum Dis 2013; 73:477-9. [PMID: 24323396 DOI: 10.1136/annrheumdis-2013-204285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Frederique M Moret
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, , Utrecht, The Netherlands
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