1
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Bao Y, Ma Q, Chen L, Feng K, Guo W, Huang T, Cai YD. Recognizing SARS-CoV-2 infection of nasopharyngeal tissue at the single-cell level by machine learning method. Mol Immunol 2025; 177:44-61. [PMID: 39700903 DOI: 10.1016/j.molimm.2024.12.004] [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: 09/14/2024] [Revised: 11/27/2024] [Accepted: 12/13/2024] [Indexed: 12/21/2024]
Abstract
SARS-CoV-2 has posed serious global health challenges not only because of the high degree of virus transmissibility but also due to its severe effects on the respiratory system, such as inducing changes in multiple organs through the ACE2 receptor. This virus makes changes to gene expression at the single-cell level and thus to cellular functions and immune responses in a variety of cell types. Previous studies have not been able to resolve these mechanisms fully, and so our study tries to bridge knowledge gaps about the cellular responses under conditions of infection. We performed single-cell RNA-sequencing of nasopharyngeal swabs from COVID-19 patients and healthy controls. We assembled a dataset of 32,588 cells for 58 subjects for analysis. The data were sorted into eight cell types: ciliated, basal, deuterosomal, goblet, myeloid, secretory, squamous, and T cells. Using machine learning, including nine feature ranking algorithms and two classification algorithms, we classified the infection status of single cells and analyzed gene expression to pinpoint critical markers of SARS-CoV-2 infection. Our findings show distinct gene expression profiles between infected and uninfected cells across diverse cell types, with key indicators such as FKBP4, IFITM1, SLC35E1, CD200R1, MT-ATP6, KRT13, RBM15, and FTH1 illuminating unique immune responses and potential pathways for viral spread and immune evasion. The machine learning methods effectively differentiated between infected and non-infected cells, shedding light on the cellular heterogeneity of SARS-CoV-2 infection. The findings will improve our knowledge of the cellular dynamics of SARS-CoV-2.
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Affiliation(s)
- YuSheng Bao
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - QingLan Ma
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China.
| | - KaiYan Feng
- Department of Computer Science, Guangdong AIB Polytechnic College, Guangzhou 510507, China.
| | - Wei Guo
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Tao Huang
- Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
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2
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Perovic V, Glisic S, Veljkovic M, Paessler S, Veljkovic V. In Silico Exploration of CD200 as a Therapeutic Target for COVID-19. Microorganisms 2024; 12:1185. [PMID: 38930566 PMCID: PMC11205781 DOI: 10.3390/microorganisms12061185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/06/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
SARS-CoV-2, the pathogen causing COVID-19, continues to pose a significant threat to public health and has had major economic implications. Developing safe and effective vaccines and therapies offers a path forward for overcoming the COVID-19 pandemic. The presented study, performed by using the informational spectrum method (ISM), representing an electronic biology-based tool for analysis of protein-protein interactions, identified the highly conserved region of spike protein (SP) from SARS-CoV-2 virus, which is essential for recognition and targeting between the virus and its protein interactors on the target cells. This domain is suggested as a promising target for the drug therapy and vaccines, which could be effective against all currently circulating variants of SARS-CoV-2 viruses. The analysis of the virus/host interaction, performed by the ISM, also revealed OX-2 membrane glycoprotein (CD200) as a possible interactor of SP, which could serve as a novel therapeutic target for COVID-19 disease.
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Affiliation(s)
- Vladimir Perovic
- Laboratory for Bioinformatics and Computational Chemistry, Institute of Nuclear Sciences VINCA, University of Belgrade, 11001 Belgrade, Serbia;
| | - Sanja Glisic
- Laboratory for Bioinformatics and Computational Chemistry, Institute of Nuclear Sciences VINCA, University of Belgrade, 11001 Belgrade, Serbia;
| | - Milena Veljkovic
- Department of Clinical Laboratory Medicine, Hospital for Cerebrovascular Diseases Sveti Sava, 11000 Belgrade, Serbia
| | - Slobodan Paessler
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
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3
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Clement M, Ladell K, Miners KL, Marsden M, Chapman L, Cardus Figueras A, Scott J, Andrews R, Clare S, Kriukova VV, Lupyr KR, Britanova OV, Withers DR, Jones SA, Chudakov DM, Price DA, Humphreys IR. Inhibitory IL-10-producing CD4 + T cells are T-bet-dependent and facilitate cytomegalovirus persistence via coexpression of arginase-1. eLife 2023; 12:e79165. [PMID: 37440306 PMCID: PMC10344424 DOI: 10.7554/elife.79165] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/11/2023] [Indexed: 07/14/2023] Open
Abstract
Inhibitory CD4+ T cells have been linked with suboptimal immune responses against cancer and pathogen chronicity. However, the mechanisms that underpin the development of these regulatory cells, especially in the context of ongoing antigen exposure, have remained obscure. To address this knowledge gap, we undertook a comprehensive functional, phenotypic, and transcriptomic analysis of interleukin (IL)-10-producing CD4+ T cells induced by chronic infection with murine cytomegalovirus (MCMV). We identified these cells as clonally expanded and highly differentiated TH1-like cells that developed in a T-bet-dependent manner and coexpressed arginase-1 (Arg1), which promotes the catalytic breakdown of L-arginine. Mice lacking Arg1-expressing CD4+ T cells exhibited more robust antiviral immunity and were better able to control MCMV. Conditional deletion of T-bet in the CD4+ lineage suppressed the development of these inhibitory cells and also enhanced immune control of MCMV. Collectively, these data elucidated the ontogeny of IL-10-producing CD4+ T cells and revealed a previously unappreciated mechanism of immune regulation, whereby viral persistence was facilitated by the site-specific delivery of Arg1.
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Affiliation(s)
- Mathew Clement
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Kristin Ladell
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Kelly L Miners
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Morgan Marsden
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Lucy Chapman
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Anna Cardus Figueras
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Jake Scott
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Robert Andrews
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Simon Clare
- Wellcome Sanger Institute, Wellcome Genome CampusHinxtonUnited Kingdom
| | - Valeriia V Kriukova
- Center of Life Sciences, Skolkovo Institute of Science and TechnologyMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Clinical Molecular Biology, Christian-Albrecht-University of KielKielGermany
| | - Ksenia R Lupyr
- Center of Life Sciences, Skolkovo Institute of Science and TechnologyMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
| | - Olga V Britanova
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Clinical Molecular Biology, Christian-Albrecht-University of KielKielGermany
- Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
| | - David R Withers
- Institute of Immunology and Immunotherapy, University of BirminghamBirminghamUnited Kingdom
| | - Simon A Jones
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Dmitriy M Chudakov
- Center of Life Sciences, Skolkovo Institute of Science and TechnologyMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Abu Dhabi Stem Cell CenterAl MuntazahUnited Arab Emirates
| | - David A Price
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Ian R Humphreys
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
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4
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Shao A, Owens DM. The immunoregulatory protein CD200 as a potentially lucrative yet elusive target for cancer therapy. Oncotarget 2023; 14:96-103. [PMID: 36738455 PMCID: PMC9899099 DOI: 10.18632/oncotarget.28354] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
CD200 is an immunoregulatory cell surface ligand with proven pro-tumorigenic credentials via its ability to suppress CD200 receptor (CD200R)-expressing anti-tumor immune function. This definitive role for the CD200-CD200R axis in regulating an immunosuppressive tumor microenvironment has garnered increasing interest in CD200 as a candidate target for immune checkpoint inhibition therapy. However, while the CD200 blocking antibody samalizumab is still in the early stages of clinical testing, alternative mechanisms for the pro-tumorigenic role of CD200 have recently emerged that extend beyond direct suppression of anti-tumor T cell responses and, as such, may not be susceptible to CD200 antibody blockade. Herein, we will summarize the current understanding of CD200 expression and function in the tumor microenvironment as well as alternative strategies for potential neutralization of multiple CD200 mechanisms in human cancers.
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Affiliation(s)
- Anqi Shao
- 1Department of Dermatology, Columbia University Irving Medical Center, Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - David M. Owens
- 1Department of Dermatology, Columbia University Irving Medical Center, Vagelos College of Physicians and Surgeons, New York, NY 10032, USA,2Department of Pathology and Cell Biology, Columbia University Irving Medical Center, Vagelos College of Physicians and Surgeons, New York, NY 10032, USA,Correspondence to:David M. Owens, email:
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5
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Smail SW, Babaei E, Amin K. Ct, IL-18 polymorphism, and laboratory biomarkers for predicting chemosensory dysfunctions and mortality in COVID-19. Future Sci OA 2023; 9:FSO838. [PMID: 36999046 PMCID: PMC10005086 DOI: 10.2144/fsoa-2022-0082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/17/2023] [Indexed: 03/11/2023] Open
Abstract
Aim Patients with COVID-19 often experience chemosensory dysfunction. This research intends to uncover the association of RT-PCR Ct value with chemosensory dysfunctions and SpO2. This study also aims to investigate Ct, SpO2, CRP, D-dimer, and -607 IL-18 T/G polymorphism in order to find out predictors of chemosensory dysfunctions and mortality. Materials & methods This study included 120 COVID-19 patients, of which 54 were mild, 40 were severe and 26 were critical. CRP, D-dimer, RT-PCR, and IL-18 polymorphism were evaluated. Results & conclusion: Low Ct was associated with SpO2 dropping and chemosensory dysfunctions. IL-18 T/G polymorphism did not show an association with COVID-19 mortality; conversely, age, BMI, D-dimer and Ct values did.
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Affiliation(s)
- Shukur Wasman Smail
- Department of Biology, College of Science, Salahaddin University-Erbil, Iraq
| | - Esmaeil Babaei
- Department of Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
| | - Kawa Amin
- College of Medicine, University of Sulaimani, Sulaymaniyah, Iraq
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6
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Clement M, Forbester JL, Marsden M, Sabberwal P, Sommerville MS, Wellington D, Dimonte S, Clare S, Harcourt K, Yin Z, Nobre L, Antrobus R, Jin B, Chen M, Makvandi-Nejad S, Lindborg JA, Strittmatter SM, Weekes MP, Stanton RJ, Dong T, Humphreys IR. IFITM3 restricts virus-induced inflammatory cytokine production by limiting Nogo-B mediated TLR responses. Nat Commun 2022; 13:5294. [PMID: 36075894 PMCID: PMC9454482 DOI: 10.1038/s41467-022-32587-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 08/08/2022] [Indexed: 11/20/2022] Open
Abstract
Interferon-induced transmembrane protein 3 (IFITM3) is a restriction factor that limits viral pathogenesis and exerts poorly understood immunoregulatory functions. Here, using human and mouse models, we demonstrate that IFITM3 promotes MyD88-dependent, TLR-mediated IL-6 production following exposure to cytomegalovirus (CMV). IFITM3 also restricts IL-6 production in response to influenza and SARS-CoV-2. In dendritic cells, IFITM3 binds to the reticulon 4 isoform Nogo-B and promotes its proteasomal degradation. We reveal that Nogo-B mediates TLR-dependent pro-inflammatory cytokine production and promotes viral pathogenesis in vivo, and in the case of TLR2 responses, this process involves alteration of TLR2 cellular localization. Nogo-B deletion abrogates inflammatory cytokine responses and associated disease in virus-infected IFITM3-deficient mice. Thus, we uncover Nogo-B as a driver of viral pathogenesis and highlight an immunoregulatory pathway in which IFITM3 fine-tunes the responsiveness of myeloid cells to viral stimulation.
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Affiliation(s)
- M Clement
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - J L Forbester
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, Oxford University, Oxford, OX3 9DS, UK
| | - M Marsden
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - P Sabberwal
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - M S Sommerville
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - D Wellington
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, Oxford University, Oxford, OX3 9DS, UK
- Chinese Academy of Medical Sciences (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - S Dimonte
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - S Clare
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK
| | - K Harcourt
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA, UK
| | - Z Yin
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, Oxford University, Oxford, OX3 9DS, UK
- Chinese Academy of Medical Sciences (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - L Nobre
- Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge, CB2 0XY, UK
| | - R Antrobus
- Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge, CB2 0XY, UK
| | - B Jin
- Fourth Military Medical University, Xian, China
| | - M Chen
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, 06536, USA
| | - S Makvandi-Nejad
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, Oxford University, Oxford, OX3 9DS, UK
| | - J A Lindborg
- Departments of Neurology and Neuroscience, Yale University School of Medicine, New Haven, CT, 06520, USA
| | - S M Strittmatter
- Departments of Neurology and Neuroscience, Yale University School of Medicine, New Haven, CT, 06520, USA
| | - M P Weekes
- Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge, CB2 0XY, UK
| | - R J Stanton
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - T Dong
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, Oxford University, Oxford, OX3 9DS, UK
- Chinese Academy of Medical Sciences (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - I R Humphreys
- Division of Infection and Immunity/Systems Immunity University Research Institute, Cardiff University, Cardiff, CF14 4XN, UK.
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7
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Salek-Ardakani S, Bell T, Jagger CP, Snelgrove RJ, Hussell T. CD200R1 regulates eosinophilia during pulmonary fungal infection in mice. Eur J Immunol 2019; 49:1380-1390. [PMID: 31365119 PMCID: PMC6773205 DOI: 10.1002/eji.201847861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 04/17/2019] [Indexed: 12/12/2022]
Abstract
CD200 receptor 1(CD200R1) signalling limits myeloid cell responses and reduces autoimmunity, alloimmunity and viral‐mediated immunopathology, but has never been examined in the context of eosinophilic inflammation. Susceptibility to lung fungal infection is associated with T‐helper 2 (Th2) cytokine dominated responses and strong eosinophilic pathology. Blockade of CD200R1 enhances type I cytokine responses in many infectious and non‐infectious settings and so may promote a more protective response to fungal infection. By contrast, we demonstrate that, rather than promoting type I cytokine responses, CD200R1 blockade enhanced eosinophilia in a mouse model of Cryptococcus neoformans infection, whereas CD200R1 agonism reduced lung eosinophilia – with neither strategy completely altering fungal burden. Thus, we reveal a surprising disconnect between pulmonary eosinophilia and cryptococcal burden and dissemination. This research has 2 important implications. Firstly, a lack of CD200R1 signalling enhances immune responses regardless of cytokine polarisation, and secondly reducing eosinophils does not allow protective immunity to develop in susceptible fungal system. Therefore, agonists of CD200R1 may be beneficial for eosinophilic pathologies.
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Affiliation(s)
- Samira Salek-Ardakani
- National Heart and Lung Institute, Department of Inflammation, Development & Repair, Imperial College London, UK.,Manchester Collaborative Centre for Inflammation Research (MCCIR), Manchester, UK
| | - Thomas Bell
- National Heart and Lung Institute, Department of Inflammation, Development & Repair, Imperial College London, UK
| | - Christopher P Jagger
- Manchester Collaborative Centre for Inflammation Research (MCCIR), Manchester, UK
| | - Robert J Snelgrove
- National Heart and Lung Institute, Department of Inflammation, Development & Repair, Imperial College London, UK
| | - Tracy Hussell
- Manchester Collaborative Centre for Inflammation Research (MCCIR), Manchester, UK
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8
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Alves JM, Carneiro M, Cheng JY, Lemos de Matos A, Rahman MM, Loog L, Campos PF, Wales N, Eriksson A, Manica A, Strive T, Graham SC, Afonso S, Bell DJ, Belmont L, Day JP, Fuller SJ, Marchandeau S, Palmer WJ, Queney G, Surridge AK, Vieira FG, McFadden G, Nielsen R, Gilbert MTP, Esteves PJ, Ferrand N, Jiggins FM. Parallel adaptation of rabbit populations to myxoma virus. Science 2019; 363:1319-1326. [PMID: 30765607 DOI: 10.1126/science.aau7285] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 12/10/2018] [Accepted: 02/01/2019] [Indexed: 12/18/2022]
Abstract
In the 1950s the myxoma virus was released into European rabbit populations in Australia and Europe, decimating populations and resulting in the rapid evolution of resistance. We investigated the genetic basis of resistance by comparing the exomes of rabbits collected before and after the pandemic. We found a strong pattern of parallel evolution, with selection on standing genetic variation favoring the same alleles in Australia, France, and the United Kingdom. Many of these changes occurred in immunity-related genes, supporting a polygenic basis of resistance. We experimentally validated the role of several genes in viral replication and showed that selection acting on an interferon protein has increased the protein's antiviral effect.
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Affiliation(s)
- Joel M Alves
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK. .,CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal.,Palaeogenomics and Bio-Archaeology Research Network Research Laboratory for Archaeology and History of Art, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford OX1 3QY, UK
| | - Miguel Carneiro
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal. .,Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
| | - Jade Y Cheng
- Departments of Integrative Biology and Statistics, University of California, Berkeley, Berkeley, CA 94720, USA.,Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark
| | - Ana Lemos de Matos
- The Biodesign Institute, Center for Immunotherapy, Vaccines, and Virotherapy, Arizona State University, Tempe, AZ 85287-5401, USA
| | - Masmudur M Rahman
- The Biodesign Institute, Center for Immunotherapy, Vaccines, and Virotherapy, Arizona State University, Tempe, AZ 85287-5401, USA
| | - Liisa Loog
- Palaeogenomics and Bio-Archaeology Research Network Research Laboratory for Archaeology and History of Art, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford OX1 3QY, UK.,Manchester Institute of Biotechnology, School of Earth and Environmental Sciences, University of Manchester, Manchester M1 7DN, UK
| | - Paula F Campos
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark.,CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Nathan Wales
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark.,Department of Plant and Microbial Biology, University of California, 111 Koshland Hall, Berkeley, CA 94720, USA.,Department of Archaeology, University of York, King's Manor, York YO1 7EP, UK
| | - Anders Eriksson
- Department of Medical and Molecular Genetics, King's College London, London SE1 9RT, UK
| | - Andrea Manica
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
| | - Tanja Strive
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT 2601, Australia.,Centre for Invasive Species Solutions, University of Canberra, Bruce, ACT 2601, Australia
| | - Stephen C Graham
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
| | - Sandra Afonso
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal
| | - Diana J Bell
- Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK
| | - Laura Belmont
- The Biodesign Institute, Center for Immunotherapy, Vaccines, and Virotherapy, Arizona State University, Tempe, AZ 85287-5401, USA
| | - Jonathan P Day
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
| | - Susan J Fuller
- School of Earth, Environmental and Biological Sciences, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia
| | | | - William J Palmer
- The Genome Center and Department of Plant Sciences, University of California, Davis, CA 95616, USA
| | - Guillaume Queney
- ANTAGENE, Wildlife Genetics Laboratory, La Tour de Salvagny (Lyon), France
| | - Alison K Surridge
- Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK
| | - Filipe G Vieira
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark
| | - Grant McFadden
- The Biodesign Institute, Center for Immunotherapy, Vaccines, and Virotherapy, Arizona State University, Tempe, AZ 85287-5401, USA
| | - Rasmus Nielsen
- Departments of Integrative Biology and Statistics, University of California, Berkeley, Berkeley, CA 94720, USA.,Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark
| | - M Thomas P Gilbert
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark.,Norwegian University of Science and Technology, University Museum, 7491 Trondheim, Norway
| | - Pedro J Esteves
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal.,Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (CESPU), Gandra, Portugal
| | - Nuno Ferrand
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal.,Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal.,Department of Zoology, Faculty of Sciences, University of Johannesburg, Auckland Park 2006, South Africa
| | - Francis M Jiggins
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK.
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9
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Ogishima J, Taguchi A, Kawata A, Kawana K, Yoshida M, Yoshimatsu Y, Sato M, Nakamura H, Kawata Y, Nishijima A, Fujimoto A, Tomio K, Adachi K, Nagamatsu T, Oda K, Kiyono T, Osuga Y, Fujii T. The oncogene KRAS promotes cancer cell dissemination by stabilizing spheroid formation via the MEK pathway. BMC Cancer 2018; 18:1201. [PMID: 30509235 PMCID: PMC6278087 DOI: 10.1186/s12885-018-4922-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 10/09/2018] [Indexed: 12/30/2022] Open
Abstract
Background Peritoneal dissemination is a critical prognostic factor in ovarian cancer. Although stabilized spheroid formation promotes cancer cell peritoneal dissemination in ovarian cancer, the associated oncogenes are unknown. In this study, we assessed the role of the KRAS oncogene in ovarian cancer cell dissemination, focusing on the stability of cells in spheroid condition, as well as the modulation of intracellular signaling following spheroid transformation. Methods We used ID8, a murine ovarian cancer cell line, and ID8-KRAS, an oncogenic KRAS (G12 V)-transduced ID8 cell line in this study. Spheroid-forming (3D) culture and cell proliferation assays were performed to evaluate the growth characteristics of these cells. cDNA microarray analysis was performed to identify genes involved in KRAS-associated signal transduction in floating condition. A MEK inhibitor was used to evaluate the effect on cancer peritoneal dissemination. Results Cell viability and proliferation in monolayer (2D) cultures did not differ between ID8 and ID8-KRAS cells. However, the proportions of viable and proliferating ID8-KRAS cells in 3D culture were approximately 2-fold and 5-fold higher than that of ID8, respectively. Spheroid-formation was increased in ID8-KRAS cells. Analysis of peritoneal floating cells obtained from mice intra-peritoneally injected with cancer cells revealed that the proportion of proliferating cancer cells was approximately 2-fold higher with ID8-KRAS than with ID8 cells. Comprehensive cDNA microarray analysis revealed that pathways related to cell proliferation, and cell cycle checkpoint and regulation were upregulated specifically in ID8-KRAS cells in 3D culture, and that some genes partially regulated by the MEK-ERK pathway were upregulated only in ID8-KRAS cells in 3D culture. Furthermore, a MEK inhibitor, trametinib, suppressed spheroid formation in 3D culture of ID8-KRAS cells, although trametinib did not affect 2D-culture cell proliferation. Finally, we demonstrated that trametinib dramatically improved the prognosis for mice with ID8-KRAS tumors in an in vivo mouse model. Conclusions Our data indicated that KRAS promoted ovarian cancer dissemination by stabilizing spheroid formation and that the MEK pathway is important for stabilized spheroid formation. Disruption of spheroid formation by a MEK inhibitor could be a therapeutic target for cancer peritoneal dissemination. Electronic supplementary material The online version of this article (10.1186/s12885-018-4922-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Juri Ogishima
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Ayumi Taguchi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Akira Kawata
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Nihon University, 30-1 Otaniguchi Uemachi, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Mitsuyo Yoshida
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yuki Yoshimatsu
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Masakazu Sato
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hiroe Nakamura
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yoshiko Kawata
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Akira Nishijima
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Asaha Fujimoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kensuke Tomio
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Katsuyuki Adachi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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10
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The Regulation of Inflammation by Innate and Adaptive Lymphocytes. J Immunol Res 2018; 2018:1467538. [PMID: 29992170 PMCID: PMC6016164 DOI: 10.1155/2018/1467538] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 05/16/2018] [Indexed: 02/08/2023] Open
Abstract
Inflammation plays an essential role in the control of pathogens and in shaping the ensuing adaptive immune responses. Traditionally, innate immunity has been described as a rapid response triggered through generic and nonspecific means that by definition lacks the ability to remember. Recently, it has become clear that some innate immune cells are epigenetically reprogrammed or “imprinted” by past experiences. These “trained” innate immune cells display altered inflammatory responses upon subsequent pathogen encounter. Remembrance of past pathogen encounters has classically been attributed to cohorts of antigen-specific memory T and B cells following the resolution of infection. During recall responses, memory T and B cells quickly respond by proliferating, producing effector cytokines, and performing various effector functions. An often-overlooked effector function of memory CD4 and CD8 T cells is the promotion of an inflammatory milieu at the initial site of infection that mirrors the primary encounter. This memory-conditioned inflammatory response, in conjunction with other secondary effector T cell functions, results in better control and more rapid resolution of both infection and the associated tissue pathology. Recent advancements in our understanding of inflammatory triggers, imprinting of the innate immune responses, and the role of T cell memory in regulating inflammation are discussed.
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11
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Stacey MA, Clare S, Clement M, Marsden M, Abdul-Karim J, Kane L, Harcourt K, Brandt C, Fielding CA, Smith SE, Wash RS, Brias SG, Stack G, Notley G, Cambridge EL, Isherwood C, Speak AO, Johnson Z, Ferlin W, Jones SA, Kellam P, Humphreys IR. The antiviral restriction factor IFN-induced transmembrane protein 3 prevents cytokine-driven CMV pathogenesis. J Clin Invest 2017; 127:1463-1474. [PMID: 28240600 PMCID: PMC5373880 DOI: 10.1172/jci84889] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 01/05/2017] [Indexed: 12/20/2022] Open
Abstract
The antiviral restriction factor IFN-induced transmembrane protein 3 (IFITM3) inhibits cell entry of a number of viruses, and genetic diversity within IFITM3 determines susceptibility to viral disease in humans. Here, we used the murine CMV (MCMV) model of infection to determine that IFITM3 limits herpesvirus-associated pathogenesis without directly preventing virus replication. Instead, IFITM3 promoted antiviral cellular immunity through the restriction of virus-induced lymphopenia, apoptosis-independent NK cell death, and loss of T cells. Viral disease in Ifitm3-/- mice was accompanied by elevated production of cytokines, most notably IL-6. IFITM3 inhibited IL-6 production by myeloid cells in response to replicating and nonreplicating virus as well as following stimulation with the TLR ligands Poly(I:C) and CpG. Although IL-6 promoted virus-specific T cell responses, uncontrolled IL-6 expression in Ifitm3-/- mice triggered the loss of NK cells and subsequently impaired control of MCMV replication. Thus, IFITM3 represents a checkpoint regulator of antiviral immunity that controls cytokine production to restrict viral pathogenesis. These data suggest the utility of cytokine-targeting strategies in the treatment of virus-infected individuals with impaired IFITM3 activity.
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Affiliation(s)
- Maria A. Stacey
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Simon Clare
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Mathew Clement
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Morgan Marsden
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Juneid Abdul-Karim
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Leanne Kane
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Katherine Harcourt
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Cordelia Brandt
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Ceri A. Fielding
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Sarah E. Smith
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Rachael S. Wash
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Silvia Gimeno Brias
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Gabrielle Stack
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - George Notley
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Emma L. Cambridge
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | | | - Anneliese O. Speak
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | | | | | - Simon A. Jones
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Paul Kellam
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
| | - Ian R. Humphreys
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, United Kingdom
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12
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Clement M, Marsden M, Stacey MA, Abdul-Karim J, Gimeno Brias S, Costa Bento D, Scurr MJ, Ghazal P, Weaver CT, Carlesso G, Clare S, Jones SA, Godkin A, Jones GW, Humphreys IR. Cytomegalovirus-Specific IL-10-Producing CD4+ T Cells Are Governed by Type-I IFN-Induced IL-27 and Promote Virus Persistence. PLoS Pathog 2016; 12:e1006050. [PMID: 27926930 PMCID: PMC5142785 DOI: 10.1371/journal.ppat.1006050] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 11/09/2016] [Indexed: 01/23/2023] Open
Abstract
CD4+ T cells support host defence against herpesviruses and other viral pathogens. We identified that CD4+ T cells from systemic and mucosal tissues of hosts infected with the β-herpesviridae human cytomegalovirus (HCMV) or murine cytomegalovirus (MCMV) express the regulatory cytokine interleukin (IL)-10. IL-10+CD4+ T cells co-expressed TH1-associated transcription factors and chemokine receptors. Mice lacking T cell-derived IL-10 elicited enhanced antiviral T cell responses and restricted MCMV persistence in salivary glands and secretion in saliva. Thus, IL-10+CD4+ T cells suppress antiviral immune responses against CMV. Expansion of this T-cell population in the periphery was promoted by IL-27 whereas mucosal IL-10+ T cell responses were ICOS-dependent. Infected Il27rα-deficient mice with reduced peripheral IL-10+CD4+ T cell accumulation displayed robust T cell responses and restricted MCMV persistence and shedding. Temporal inhibition experiments revealed that IL-27R signaling during initial infection was required for the suppression of T cell immunity and control of virus shedding during MCMV persistence. IL-27 production was promoted by type-I IFN, suggesting that β-herpesviridae exploit the immune-regulatory properties of this antiviral pathway to establish chronicity. Further, our data reveal that cytokine signaling events during initial infection profoundly influence virus chronicity. Viruses including the pathogenic β-herpesvirus human cytomegalovirus (HCMV) can replicate within and disseminate from mucosal tissues. Understanding how to improve antiviral immune responses to restrict virus replication in the mucosa could help counter virus transmission. Studies in the murine cytomegalovirus (MCMV) model have demonstrated the importance of the CD4+ T cells in control of mucosal MCMV replication. However, this process is inefficient, allowing virus persistence. Herein, we reveal that production by CD4+ T cells of the immune-suppressive soluble protein, or cytokine, interleukin (IL)-10 facilitates virus persistence in mucosal tissue. Mice deficient in T cell-derived IL-10 mounted heightened T cell responses and reduced virus replication in the salivary glands and shedding in the saliva. The cytokine IL-27 induced IL-10-producing CD4+ T cells in the periphery whereas a cell surface-expressed protein, ICOS, promoted mucosal IL-10+ T cell responses. IL-27 acted in the initial stages of infection to impinge on T cell responses and antiviral control. In turn, IL-27 production in response to viral infection was triggered by type-I interferon, a prototypic antiviral cytokine. Thus, our data suggest that herpesviruses may exploit immune-suppressive properties of this early antiviral cytokine response to facilitate persistence within and shedding from mucosal tissue.
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Affiliation(s)
- Mathew Clement
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
- * E-mail: (MC); (IRH)
| | - Morgan Marsden
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Maria A. Stacey
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Juneid Abdul-Karim
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Silvia Gimeno Brias
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Diana Costa Bento
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Martin J. Scurr
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Peter Ghazal
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Casey T. Weaver
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Gianluca Carlesso
- Respiratory, Inflammation and Autoimmunity, Research Department, MedImmune LLC, Gaithersburg, MD, United States of America
| | - Simon Clare
- Wellcome Trust Sanger Institute, Cambridgeshire, United Kingdom
| | - Simon A. Jones
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Andrew Godkin
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Gareth W. Jones
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
| | - Ian R. Humphreys
- Division of Infection & Immunity, Cardiff University, Cardiff, United Kingdom
- Wellcome Trust Sanger Institute, Cambridgeshire, United Kingdom
- * E-mail: (MC); (IRH)
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13
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Transcriptomic Analysis of Persistent Infection with Foot-and-Mouth Disease Virus in Cattle Suggests Impairment of Apoptosis and Cell-Mediated Immunity in the Nasopharynx. PLoS One 2016; 11:e0162750. [PMID: 27643611 PMCID: PMC5028045 DOI: 10.1371/journal.pone.0162750] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 08/26/2016] [Indexed: 12/15/2022] Open
Abstract
In order to investigate the mechanisms of persistent foot-and-mouth disease virus (FMDV) infection in cattle, transcriptome alterations associated with the FMDV carrier state were characterized using a bovine whole-transcriptome microarray. Eighteen cattle (8 vaccinated with a recombinant FMDV A vaccine, 10 non-vaccinated) were challenged with FMDV A24 Cruzeiro, and the gene expression profiles of nasopharyngeal tissues collected between 21 and 35 days after challenge were compared between 11 persistently infected carriers and 7 non-carriers. Carriers and non-carriers were further compared to 2 naïve animals that had been neither vaccinated nor challenged. At a controlled false-discovery rate of 10% and a minimum difference in expression of 50%, 648 genes were differentially expressed between FMDV carriers and non-carriers, and most (467) had higher expression in carriers. Among these, genes associated with cellular proliferation and the immune response-such as chemokines, cytokines and genes regulating T and B cells-were significantly overrepresented. Differential gene expression was significantly correlated between non-vaccinated and vaccinated animals (biological correlation +0.97), indicating a similar transcriptome profile across these groups. Genes related to prostaglandin E2 production and the induction of regulatory T cells were overexpressed in carriers. In contrast, tissues from non-carrier animals expressed higher levels of complement regulators and pro-apoptotic genes that could promote virus clearance. Based on these findings, we propose a working hypothesis for FMDV persistence in nasopharyngeal tissues of cattle, in which the virus may be maintained by an impairment of apoptosis and the local suppression of cell-mediated antiviral immunity by inducible regulatory T cells.
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14
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Gannavaram S, Bhattacharya P, Ismail N, Kaul A, Singh R, Nakhasi HL. Modulation of Innate Immune Mechanisms to Enhance Leishmania Vaccine-Induced Immunity: Role of Coinhibitory Molecules. Front Immunol 2016; 7:187. [PMID: 27242794 PMCID: PMC4865500 DOI: 10.3389/fimmu.2016.00187] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 05/02/2016] [Indexed: 12/14/2022] Open
Abstract
No licensed human vaccines are currently available against any parasitic disease including leishmaniasis. Several antileishmanial vaccine formulations have been tested in various animal models, including genetically modified live-attenuated parasite vaccines. Experimental infection studies have shown that Leishmania parasites utilize a broad range of strategies to undermine effector properties of host phagocytic cells, i.e., dendritic cells (DCs) and macrophages (MΦ). Furthermore, Leishmania parasites have evolved strategies to actively inhibit TH1 polarizing functions of DCs and to condition the infected MΦ toward anti-inflammatory/alternative/M2 phenotype. The altered phenotype of phagocytic cells is characterized by decreased production of antimicrobial reactive oxygen, nitrogen molecules, and pro-inflammatory cytokines, such as IFN-γ, IL-12, and TNF-α. These early events limit the activation of TH1-effector cells and set the stage for pathogenesis. Furthermore, this early control of innate immunity by the virulent parasites results in substantial alteration in the adaptive immunity characterized by reduced proliferation of CD4+ and CD8+ T cells and TH2-biased immunity that results in production of anti-inflammatory cytokines, such as TGF-β, and IL-10. More recent studies have also documented the induction of coinhibitory ligands, such as CTLA-4, PD-L1, CD200, and Tim-3, that induce exhaustion and/or non-proliferation in antigen-experienced T cells. Most of these studies focus on viral infections in chronic phase, thus limiting the direct application of these results to parasitic infections and much less to parasitic vaccines. However, these studies suggest that vaccine-induced protective immunity can be modulated using strategies that enhance the costimulation that might reduce the threshold necessary for T cell activation and conversely by strategies that reduce or block inhibitory molecules, such as PD-L1 and CD200. In this review, we will focus on the polarization of antigen-presenting cells and subsequent role of costimulatory and coinhibitory molecules in mediating vaccine-induced immunity using live-attenuated Leishmania parasites as specific examples.
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Affiliation(s)
- Sreenivas Gannavaram
- Laboratory of Emerging Pathogens, Division of Emerging and Transfusion Transmitted Diseases, Food and Drug Administration , Silver Spring, MD , USA
| | - Parna Bhattacharya
- Laboratory of Emerging Pathogens, Division of Emerging and Transfusion Transmitted Diseases, Food and Drug Administration , Silver Spring, MD , USA
| | - Nevien Ismail
- Laboratory of Emerging Pathogens, Division of Emerging and Transfusion Transmitted Diseases, Food and Drug Administration , Silver Spring, MD , USA
| | - Amit Kaul
- Laboratory of Emerging Pathogens, Division of Emerging and Transfusion Transmitted Diseases, Food and Drug Administration , Silver Spring, MD , USA
| | - Rakesh Singh
- Department of Biochemistry, Banaras Hindu University , Varanasi , India
| | - Hira L Nakhasi
- Laboratory of Emerging Pathogens, Division of Emerging and Transfusion Transmitted Diseases, Food and Drug Administration , Silver Spring, MD , USA
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15
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Kwong LS, Akkaya M, Barclay AN, Hatherley D. Herpesvirus orthologues of CD200 bind host CD200R but not related activating receptors. J Gen Virol 2015; 97:179-184. [PMID: 26538068 DOI: 10.1099/jgv.0.000335] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Several herpesviruses have acquired the gene for the CD200 membrane protein from their hosts and can downregulate myeloid activity through interaction of this viral CD200 orthologue with the host receptor for CD200, namely CD200R, which can give inhibitory signals. This receptor is a 'paired receptor', meaning proteins related to the inhibitory CD200R are present but differ in that they can give activating signals and also give a negligible interaction with CD200. We showed that the viral orthologues e127 from rat cytomegalovirus and K14 from human herpesvirus 8 do not bind the activating CD200R-like proteins from their respective species, although they do bind the inhibitory receptors. It is thought that the activating receptors have evolved in response to pathogens targeting the inhibitory receptor. In this case, the CD200 orthologue is not trapped by the activating receptor but has maintained the specificity of the host from which it was acquired, suggesting that the activating members of the CD200R family have evolved to protect against a different pathogen.
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Affiliation(s)
- Lai Shan Kwong
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Munir Akkaya
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - A Neil Barclay
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Deborah Hatherley
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
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16
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Byrareddy SN, Little D, Mayne AE, Villinger F, Ansari AA. Phenotypic and Functional Characterization of Monoclonal Antibodies with Specificity for Rhesus Macaque CD200, CD200R and Mincle. PLoS One 2015; 10:e0140689. [PMID: 26468886 PMCID: PMC4607400 DOI: 10.1371/journal.pone.0140689] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 09/28/2015] [Indexed: 12/28/2022] Open
Abstract
Lectin-like molecules and their receptors are cell surface molecules that have been shown to play a role in either facilitating infection or serving as transporters of HIV/SIV in vivo. The role of these lectin-like molecules in the pathogenesis of HIV/SIV infection continues to be defined. In efforts to gain further insight on the potential role of these lectin-like molecules, our laboratory generated monoclonal antibodies (mAb) against the human analogs of rhesus macaque CD200, CD200R and Mincle, since the rhesus macaques are accepted as the most reliable animal model to study human HIV infection. The characterization of the cell lineages from the blood and various tissues of rhesus macaques that express these lectin-like molecules are described herein. Among the mononuclear cells, the cells of the myeloid lineage of rhesus macaques are the predominant cell lineages that express readily detectable levels of CD200, CD200R and Mincle that is similar to the expression of Siglec-1 and Siglec-3 reported by our laboratory earlier. Subset analysis revealed that a higher frequency of the CD14+/CD16- subset from normal rhesus macaques express CD200, CD200R and Mincle. Differences in the frequencies and density of expression of these molecules by the gated population of CD14+ cells from various tissues are noted with PBMC and bone marrow expressing the highest and the mononuclear cells isolated from the colon and ileum expressing the lowest levels. While a significant frequency of pDCs and mDCs express Siglec-1/Siglec-3, a much lower frequency expresses CD200, CD200R and Mincle in PBMCs from rhesus macaques. The mAb against CD200 and CD200R but not Mincle appear to inhibit the infection of macrophage tropic SIV/SHIV in vitro. We conclude that these mAbs may have potential to be used as adjunctive therapeutic agents to control/inhibit SIV/HIV infection.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/metabolism
- Antibody Specificity
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Cells, Cultured
- Humans
- Lectins, C-Type/immunology
- Lectins, C-Type/metabolism
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/virology
- Macaca mulatta/immunology
- Macaca mulatta/metabolism
- Macrophages/metabolism
- Macrophages/virology
- Phenotype
- Receptors, Cell Surface/immunology
- Receptors, Cell Surface/metabolism
- Simian Acquired Immunodeficiency Syndrome/immunology
- Simian Immunodeficiency Virus/immunology
- U937 Cells
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Affiliation(s)
- Siddappa N. Byrareddy
- Department of Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Dawn Little
- Department of Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Ann E. Mayne
- Department of Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Francois Villinger
- Department of Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Department of Microbiology & Immunology, The Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - Aftab A. Ansari
- Department of Pathology & Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
- * E-mail:
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