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Foo IJH, Chua BY, Chang SY, Jia X, van der Eerden A, Fazakerley JK, Kedzierska K, Kedzierski L. Prior influenza virus infection alleviates an arbovirus encephalitis by reducing viral titer, inflammation, and cellular infiltrates in the central nervous system. J Virol 2025; 99:e0210824. [PMID: 39817772 PMCID: PMC11852871 DOI: 10.1128/jvi.02108-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2024] [Accepted: 12/14/2024] [Indexed: 01/18/2025] Open
Abstract
Respiratory and encephalitic virus infections represent a significant risk to public health globally. Detailed investigations of immunological responses and disease outcomes during sequential virus infections are rare. Here, we define the impact of influenza virus infection on a subsequent virus encephalitis. We used a model system in which mice were given influenza A virus (IAV) infection 8 days prior to Semliki Forest virus (SFV) infection (IAV→SFV). IAV infection clearly attenuated the subsequent SFV infection with reduced titers of infectious SFV and lower levels of cytokines and chemokines in the central nervous system (CNS). In contrast, the SFV viremia in both IAV→SFV and SFV-only mice was comparable. Increased type I interferon (IFN) levels in the CNS after IAV infection might have contributed to some level of protection towards SFV infection in the CNS, suggesting that early control of SFV replication in the CNS during IAV→SFV infection led to reduced adaptive response, given the lower number of CD8+ T cells recruited to the brain in IAV→SFV infection. In lungs, however, prior IAV infection elicited effector CD8+ T cells with highly activated CD38 and/or CD25 phenotypes, while SFV-only infection elicited distinct effector CD8+ T cells with increased frequencies of KLRG1 expression, a hallmark of short-lived effector T cells. Taken together, our findings demonstrate that prior IAV infection can confer protective immunity toward secondary SFV infection, confirmed by reduced disease severity and inflammatory immune responses in the brain. Our work provides important insights into therapies and vaccine regimens directed against unrelated pathogens. IMPORTANCE Influenza viruses are medically important human pathogens that caused epidemics and pandemics throughout history. Conversely, encephalitic arthropod-borne virus (arboviral) diseases affect both humans and domestic animals, creating massive public health issues. Influenza viruses circulate globally while arboviruses dominate tropical regions. Given both influenza virus and encephalitic arboviruses, such as alphaviruses, circulate in many regions globally, co-infections are likely to occur. In addition, arthropod-borne neurotropic infections are generally mild or asymptomatic, hence are likely to be unnoticed as a risk factor during influenza infection. However, the consequences of such co-infections are unclear. Our recent study showed that alphavirus infection preceding Influenza A virus (IAV) infection negatively impacted immune responses to the influenza virus in mice. Here, we aim to investigate the immune responses when the order of sequential infection with IAV and alphavirus are swapped. Altogether, our findings will provide key insights to improved diagnostics, preventative vaccines, and antiviral therapies.
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Affiliation(s)
- Isabelle J. H. Foo
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Veterinary Biosciences, Faculty of Science, University of Melbourne, Melbourne, Victoria, Australia
| | - Brendon Y. Chua
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - So Young Chang
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Xiaoxiao Jia
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Alice van der Eerden
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - John K. Fazakerley
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Veterinary Biosciences, Faculty of Science, University of Melbourne, Melbourne, Victoria, Australia
| | - Katherine Kedzierska
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Lukasz Kedzierski
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
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Pöpperl P, Stoff M, Beineke A. Alveolar Macrophages in Viral Respiratory Infections: Sentinels and Saboteurs of Lung Defense. Int J Mol Sci 2025; 26:407. [PMID: 39796262 PMCID: PMC11721917 DOI: 10.3390/ijms26010407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2024] [Revised: 01/02/2025] [Accepted: 01/03/2025] [Indexed: 01/13/2025] Open
Abstract
Respiratory viral infections continue to cause pandemic and epidemic outbreaks in humans and animals. Under steady-state conditions, alveolar macrophages (AlvMϕ) fulfill a multitude of tasks in order to maintain tissue homeostasis. Due to their anatomic localization within the deep lung, AlvMϕ are prone to detect and react to inhaled viruses and thus play a role in the early pathogenesis of several respiratory viral infections. Here, detection of viral pathogens causes diverse antiviral and proinflammatory reactions. This fact not only makes them promising research targets, but also suggests them as potential targets for therapeutic and prophylactic approaches. This review aims to give a comprehensive overview of the current knowledge about the role of AlvMϕ in respiratory viral infections of humans and animals.
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Affiliation(s)
- Pauline Pöpperl
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
- Center for Systems Neuroscience (ZSN), 30559 Hannover, Germany
| | - Melanie Stoff
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Andreas Beineke
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
- Center for Systems Neuroscience (ZSN), 30559 Hannover, Germany
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3
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West AC, Harpur CM, Le Page MA, Lam M, Hodges C, Ely LK, Gearing AJ, Tate MD. Harnessing Endogenous Peptide Compounds as Potential Therapeutics for Severe Influenza. J Infect Dis 2024; 230:e384-e394. [PMID: 38060822 PMCID: PMC11326819 DOI: 10.1093/infdis/jiad566] [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: 07/18/2023] [Accepted: 12/05/2023] [Indexed: 08/17/2024] Open
Abstract
BACKGROUND Excessive pulmonary inflammation and damage are characteristic features of severe influenza virus infections. LAT8881 is a synthetic 16-amino acid cyclic peptide form of a naturally occurring C-terminal fragment of human growth hormone with therapeutic efficacy against influenza. Shorter linear peptides are typically easier to manufacture and formulate for delivery than larger cyclic peptides. A 6-amino acid linear peptide fragment of LAT8881, LAT9997, was investigated as a potential influenza therapy. METHODS LAT9997 was evaluated for its potential to limit disease in a preclinical mouse model of severe influenza infection. RESULTS Intranasal treatment of mice with either LAT8881 or LAT9997 from day 1 following influenza infection significantly improved survival outcomes. Initiating LAT9997 treatment at the onset of severe disease also significantly improved disease severity. Greater disease resistance in LAT9997-treated mice correlated with reduced lung immunopathology, damage markers, vascular leak, and epithelial cell death. Treatment reduced viral loads, cytokines, and neutrophil infiltration in the airways yet maintained protective alveolar macrophages in a dose-dependent manner. Sequential trimming of N- and C-terminal amino acids from LAT9997 revealed a structure-activity relationship. CONCLUSIONS These findings provide preclinical evidence that therapeutic LAT9997 treatment limits viral burden and characteristic features of severe influenza, including hyperinflammation and lung damage. SUMMARY Excessive pulmonary inflammation and damage are characteristic features of severe influenza virus infections. LAT9997 is a linear peptide fragment derived from human growth hormone. This study provides preclinical evidence that therapeutic LAT9997 treatment limits viral burden, hyperinflammation, and lung damage.
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Affiliation(s)
- Alison C West
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research
- Department of Molecular and Translational Sciences, Monash University, Clayton
| | - Christopher M Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research
- Department of Molecular and Translational Sciences, Monash University, Clayton
| | - Mélanie A Le Page
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research
- Department of Molecular and Translational Sciences, Monash University, Clayton
| | - Maggie Lam
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research
- Department of Molecular and Translational Sciences, Monash University, Clayton
| | - Christopher Hodges
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research
- Department of Molecular and Translational Sciences, Monash University, Clayton
| | | | | | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research
- Department of Molecular and Translational Sciences, Monash University, Clayton
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4
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Pervizaj-Oruqaj L, Ferrero MR, Matt U, Herold S. The guardians of pulmonary harmony: alveolar macrophages orchestrating the symphony of lung inflammation and tissue homeostasis. Eur Respir Rev 2024; 33:230263. [PMID: 38811033 PMCID: PMC11134199 DOI: 10.1183/16000617.0263-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/20/2024] [Indexed: 05/31/2024] Open
Abstract
Recent breakthroughs in single-cell sequencing, advancements in cellular and tissue imaging techniques, innovations in cell lineage tracing, and insights into the epigenome collectively illuminate the enigmatic landscape of alveolar macrophages in the lung under homeostasis and disease conditions. Our current knowledge reveals the cellular and functional diversity of alveolar macrophages within the respiratory system, emphasising their remarkable adaptability. By synthesising insights from classical cell and developmental biology studies, we provide a comprehensive perspective on alveolar macrophage functional plasticity. This includes an examination of their ontology-related features, their role in maintaining tissue homeostasis under steady-state conditions and the distinct contribution of bone marrow-derived macrophages (BMDMs) in promoting tissue regeneration and restoring respiratory system homeostasis in response to injuries. Elucidating the signalling pathways within inflammatory conditions, the impact of various triggers on tissue-resident alveolar macrophages (TR-AMs), as well as the recruitment and polarisation of macrophages originating from the bone marrow, presents an opportunity to propose innovative therapeutic approaches aimed at modulating the equilibrium between phenotypes to induce programmes associated with a pro-regenerative or homeostasis phenotype of BMDMs or TR-AMs. This, in turn, can lead to the amelioration of disease outcomes and the attenuation of detrimental inflammation. This review comprehensively addresses the pivotal role of macrophages in the orchestration of inflammation and resolution phases after lung injury, as well as ageing-related shifts and the influence of clonal haematopoiesis of indeterminate potential mutations on alveolar macrophages, exploring altered signalling pathways and transcriptional profiles, with implications for respiratory homeostasis.
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Affiliation(s)
- Learta Pervizaj-Oruqaj
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Maximiliano Ruben Ferrero
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), Buenos Aires, Argentina
| | - Ulrich Matt
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Susanne Herold
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
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5
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Giovanetti M, Pannella G, Altomare A, Rocchi G, Guarino M, Ciccozzi M, Riva E, Gherardi G. Exploring the Interplay between COVID-19 and Gut Health: The Potential Role of Prebiotics and Probiotics in Immune Support. Viruses 2024; 16:370. [PMID: 38543736 PMCID: PMC10975078 DOI: 10.3390/v16030370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 05/23/2024] Open
Abstract
The COVID-19 pandemic has profoundly impacted global health, leading to extensive research focused on developing strategies to enhance outbreak response and mitigate the disease's severity. In the aftermath of the pandemic, attention has shifted towards understanding and addressing long-term health implications, particularly in individuals experiencing persistent symptoms, known as long COVID. Research into potential interventions to alleviate long COVID symptoms has intensified, with a focus on strategies to support immune function and mitigate inflammation. One area of interest is the gut microbiota, which plays a crucial role in regulating immune responses and maintaining overall health. Prebiotics and probiotics, known for their ability to modulate the gut microbiota, have emerged as potential therapeutic agents in bolstering immune function and reducing inflammation. This review delves into the intricate relationship between long COVID, the gut microbiota, and immune function, with a specific focus on the role of prebiotics and probiotics. We examine the immune response to long COVID, emphasizing the importance of inflammation and immune regulation in the persistence of symptoms. The potential of probiotics in modulating immune responses, including their mechanisms in combating viral infections such as COVID-19, is discussed in detail. Clinical evidence supporting the use of probiotics in managing long COVID symptoms is summarized, highlighting their role as adjunctive therapy in addressing various aspects of SARS-CoV-2 infection and its aftermath.
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Affiliation(s)
- Marta Giovanetti
- Sciences and Technologies for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, 00128 Roma, Italy; (G.P.); (A.A.)
- Climate Amplified Diseases and Epidemics (CLIMADE), Brasilia 70070-130, Brazil
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-002, Brazil
| | - Gianfranco Pannella
- Sciences and Technologies for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, 00128 Roma, Italy; (G.P.); (A.A.)
- Department of Agricultural, Enviromental and Food Science, University of Molise, 86100 Campobasso, Italy
| | - Annamaria Altomare
- Sciences and Technologies for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, 00128 Roma, Italy; (G.P.); (A.A.)
- Research Unit of Gastroenterology, Università Campus Bio-Medico di Roma, 00128 Rome, Italy; (G.R.); (M.G.)
| | - Giulia Rocchi
- Research Unit of Gastroenterology, Università Campus Bio-Medico di Roma, 00128 Rome, Italy; (G.R.); (M.G.)
| | - Michele Guarino
- Research Unit of Gastroenterology, Università Campus Bio-Medico di Roma, 00128 Rome, Italy; (G.R.); (M.G.)
- Operative Research Unit of Gastroenterology, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
| | - Massimo Ciccozzi
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, 00128 Roma, Italy;
| | - Elisabetta Riva
- Unit of Virology, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy;
- Applied Bacteriological Sciences Unit, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
| | - Giovanni Gherardi
- Applied Bacteriological Sciences Unit, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
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6
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Cardenas M, Seibert B, Cowan B, Fraiha ALS, Carnaccini S, Gay LC, Faccin FC, Caceres CJ, Anderson TK, Vincent Baker AL, Perez DR, Rajao DS. Amino acid 138 in the HA of a H3N2 subtype influenza A virus increases affinity for the lower respiratory tract and alveolar macrophages in pigs. PLoS Pathog 2024; 20:e1012026. [PMID: 38377132 PMCID: PMC10906893 DOI: 10.1371/journal.ppat.1012026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/01/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024] Open
Abstract
Influenza A virus (FLUAV) infects a wide range of hosts and human-to-swine spillover events are frequently reported. However, only a few of these human viruses have become established in pigs and the host barriers and molecular mechanisms driving adaptation to the swine host remain poorly understood. We previously found that infection of pigs with a 2:6 reassortant virus (hVIC/11) containing the hemagglutinin (HA) and neuraminidase (NA) gene segments from the human strain A/Victoria/361/2011 (H3N2) and internal gene segments of an endemic swine strain (sOH/04) resulted in a fixed amino acid substitution in the HA (A138S, mature H3 HA numbering). In silico analysis revealed that S138 became predominant among swine H3N2 virus sequences deposited in public databases, while 138A predominates in human isolates. To understand the role of the HA A138S substitution in the adaptation of a human-origin FLUAV HA to swine, we infected pigs with the hVIC/11A138S mutant and analyzed pathogenesis and transmission compared to hVIC/11 and sOH/04. Our results showed that the hVIC/11A138S virus had an intermediary pathogenesis between hVIC/11 and sOH/04. The hVIC/11A138S infected the upper respiratory tract, right caudal, and both cranial lobes while hVIC/11 was only detected in nose and trachea samples. Viruses induced a distinct expression pattern of various pro-inflammatory cytokines such as IL-8, TNF-α, and IFN-β. Flow cytometric analysis of lung samples revealed a significant reduction of porcine alveolar macrophages (PAMs) in hVIC/11A138S-infected pigs compared to hVIC/11 while a MHCIIlowCD163neg population was increased. The hVIC/11A138S showed a higher affinity for PAMs than hVIC/11, noted as an increase of infected PAMs in bronchoalveolar lavage fluid (BALF), and showed no differences in the percentage of HA-positive PAMs compared to sOH/04. This increased infection of PAMs led to an increase of granulocyte-monocyte colony-stimulating factor (GM-CSF) stimulation but a reduced expression of peroxisome proliferator-activated receptor gamma (PPARγ) in the sOH/04-infected group. Analysis using the PAM cell line 3D4/21 revealed that the A138S substitution improved replication and apoptosis induction in this cell type compared to hVIC/11 but at lower levels than sOH/04. Overall, our study indicates that adaptation of human viruses to the swine host involves an increased affinity for the lower respiratory tract and alveolar macrophages.
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Affiliation(s)
- Matias Cardenas
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Brittany Seibert
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Brianna Cowan
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Ana Luiza S. Fraiha
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Silvia Carnaccini
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - L. Claire Gay
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Flavio Cargnin Faccin
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - C. Joaquin Caceres
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Tavis K. Anderson
- Virus and Prion Research Unit, National Animal Disease Center, United States Department of Agriculture, Agricultural Research Service, Ames, Iowa, United States of America
| | - Amy L. Vincent Baker
- Virus and Prion Research Unit, National Animal Disease Center, United States Department of Agriculture, Agricultural Research Service, Ames, Iowa, United States of America
| | - Daniel R. Perez
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Daniela S. Rajao
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
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7
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Rosli S, Harpur CM, Lam M, West AC, Hodges C, Mansell A, Lawlor KE, Tate MD. Gasdermin D promotes hyperinflammation and immunopathology during severe influenza A virus infection. Cell Death Dis 2023; 14:727. [PMID: 37945599 PMCID: PMC10636052 DOI: 10.1038/s41419-023-06258-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Excessive inflammation and tissue damage during severe influenza A virus (IAV) infection can lead to the development of fatal pulmonary disease. Pyroptosis is a lytic and pro-inflammatory form of cell death executed by the pore-forming protein gasdermin D (GSDMD). In this study, we investigated a potential role for GSDMD in promoting the development of severe IAV disease. IAV infection resulted in cleavage of GSDMD in vivo and in vitro in lung epithelial cells. Mice genetically deficient in GSDMD (Gsdmd-/-) developed less severe IAV disease than wildtype mice and displayed improved survival outcomes. GSDMD deficiency significantly reduced neutrophil infiltration into the airways as well as the levels of pro-inflammatory cytokines TNF, IL-6, MCP-1, and IL-1α and neutrophil-attracting chemokines CXCL1 and CXCL2. In contrast, IL-1β and IL-18 responses were not largely impacted by GSDMD deficiency. In addition, Gsdmd-/- mice displayed significantly improved influenza disease resistance with reduced viral burden and less severe pulmonary pathology, including decreased epithelial damage and cell death. These findings indicate a major role for GSDMD in promoting damaging inflammation and the development of severe IAV disease.
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Affiliation(s)
- Sarah Rosli
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Christopher M Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Maggie Lam
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Alison C West
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Christopher Hodges
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Ashley Mansell
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
- Adiso Therapeutics, Concord, MA, USA
| | - Kate E Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia.
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia.
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8
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Malireddi RKS, Sharma BR, Bynigeri RR, Wang Y, Lu J, Kanneganti TD. ZBP1 Drives IAV-Induced NLRP3 Inflammasome Activation and Lytic Cell Death, PANoptosis, Independent of the Necroptosis Executioner MLKL. Viruses 2023; 15:2141. [PMID: 38005819 PMCID: PMC10674287 DOI: 10.3390/v15112141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 11/26/2023] Open
Abstract
Influenza A virus (IAV) continues to pose a significant global health threat, causing severe respiratory infections that result in substantial annual morbidity and mortality. Recent research highlights the pivotal role of innate immunity, cell death, and inflammation in exacerbating the severity of respiratory viral diseases. One key molecule in this process is ZBP1, a well-recognized innate immune sensor for IAV infection. Upon activation, ZBP1 triggers the formation of a PANoptosome complex containing ASC, caspase-8, and RIPK3, among other molecules, leading to inflammatory cell death, PANoptosis, and NLRP3 inflammasome activation for the maturation of IL-1β and IL-18. However, the role for other molecules in this process requires further evaluation. In this study, we investigated the role of MLKL in regulating IAV-induced cell death and NLRP3 inflammasome activation. Our data indicate IAV induced inflammatory cell death through the ZBP1-PANoptosome, where caspases and RIPKs serve as core components. However, IAV-induced lytic cell death was only partially dependent on RIPK3 at later timepoints and was fully independent of MLKL throughout all timepoints tested. Additionally, NLRP3 inflammasome activation was unaffected in MLKL-deficient cells, establishing that MLKL and MLKL-dependent necroptosis do not act upstream of NLRP3 inflammasome activation, IL-1β maturation, and lytic cell death during IAV infection.
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Affiliation(s)
- R K Subbarao Malireddi
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, USA
| | - Bhesh Raj Sharma
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, USA
| | - Ratnakar R Bynigeri
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, USA
| | - Yaqiu Wang
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, USA
| | - Jianlin Lu
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, USA
| | - Thirumala-Devi Kanneganti
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, USA
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9
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Zhang L, Li Y(H, Kibler K, Kraberger S, Varsani A, Turk J, Elmadbouly N, Aliskevich E, Spaccarelli L, Estifanos B, Enow J, Zanetti IR, Saldevar N, Lim E, Schlievert J, Browder K, Wilson A, Juan FA, Pinteric A, Garg A, Monder H, Saju R, Gisriel S, Jacobs B, Karr TL, Florsheim EB, Kumar V, Wallen J, Rahman M, McFadden G, Hogue BG, Lucas AR. Viral anti-inflammatory serpin reduces immuno-coagulopathic pathology in SARS-CoV-2 mouse models of infection. EMBO Mol Med 2023; 15:e17376. [PMID: 37534622 PMCID: PMC10493584 DOI: 10.15252/emmm.202317376] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 08/04/2023] Open
Abstract
SARS-CoV-2 acute respiratory distress syndrome (ARDS) induces uncontrolled lung inflammation and coagulopathy with high mortality. Anti-viral drugs and monoclonal antibodies reduce early COVID-19 severity, but treatments for late-stage immuno-thrombotic syndromes and long COVID are limited. Serine protease inhibitors (SERPINS) regulate activated proteases. The myxoma virus-derived Serp-1 protein is a secreted immunomodulatory serpin that targets activated thrombotic, thrombolytic, and complement proteases as a self-defense strategy to combat clearance. Serp-1 is effective in multiple animal models of inflammatory lung disease and vasculitis. Here, we describe systemic treatment with purified PEGylated Serp-1 as a therapy for immuno-coagulopathic complications during ARDS. Treatment with PEGSerp-1 in two mouse-adapted SARS-CoV-2 models in C57Bl/6 and BALB/c mice reduced lung and heart inflammation, with improved outcomes. PEGSerp-1 significantly reduced M1 macrophages in the lung and heart by modifying urokinase-type plasminogen activator receptor (uPAR), thrombotic proteases, and complement membrane attack complex (MAC). Sequential changes in gene expression for uPAR and serpins (complement and plasminogen inhibitors) were observed. PEGSerp-1 is a highly effective immune-modulator with therapeutic potential for severe viral ARDS, immuno-coagulopathic responses, and Long COVID.
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Affiliation(s)
- Liqiang Zhang
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Yize (Henry) Li
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
| | - Karen Kibler
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Simona Kraberger
- Center of Fundamental and Applied MicrobiomicsBiodesign Institute, Arizona State UniversityTempeAZUSA
| | - Arvind Varsani
- School of Life SciencesArizona State UniversityTempeAZUSA
- Center of Fundamental and Applied MicrobiomicsBiodesign Institute, Arizona State UniversityTempeAZUSA
- Center for Evolution and Medicine, School of Life SciencesArizona State UniversityTempeAZUSA
| | - Julie Turk
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Nora Elmadbouly
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Emily Aliskevich
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Laurel Spaccarelli
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Bereket Estifanos
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Junior Enow
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Isabela Rivabem Zanetti
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Nicholas Saldevar
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Efrem Lim
- School of Life SciencesArizona State UniversityTempeAZUSA
- Center of Fundamental and Applied MicrobiomicsBiodesign Institute, Arizona State UniversityTempeAZUSA
| | - Jessika Schlievert
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Kyle Browder
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Anjali Wilson
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Fernando Arcos Juan
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Aubrey Pinteric
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Aman Garg
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Henna Monder
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Rohan Saju
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Savanah Gisriel
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
- Departments of Pathology & Lab MedicineYale‐New Haven HospitalNew HavenCTUSA
| | - Bertram Jacobs
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
| | - Timothy L Karr
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
- Neurodegenerative Disease Research Center & Proteomics Center, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Esther Borges Florsheim
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
| | - Vivek Kumar
- New Jersey Institute of TechnologyNewarkNJUSA
| | | | - Masmudur Rahman
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Grant McFadden
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
| | - Brenda G Hogue
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
- Center for Applied Structural Discovery, Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Alexandra R Lucas
- Center for Personalized Diagnostics, Biodesign InstituteArizona State UniversityTempeAZUSA
- Center of Immunotherapy, Vaccines and Virotherapy, Biodesign InstituteArizona State UniversityTempeAZUSA
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10
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Harpur CM, West AC, Le Page MA, Lam M, Hodges C, Oseghale O, Gearing AJ, Tate MD. Naturally derived cytokine peptides limit virus replication and severe disease during influenza A virus infection. Clin Transl Immunology 2023; 12:e1443. [PMID: 36969366 PMCID: PMC10034483 DOI: 10.1002/cti2.1443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/25/2023] Open
Abstract
Objectives Novel host‐targeted therapeutics could treat severe influenza A virus (IAV) infections, with reduced risk of drug resistance. LAT8881 is a synthetic form of the naturally occurring C‐terminal fragment of human growth hormone. Acting independently of the growth hormone receptor, it can reduce inflammation‐induced damage and promote tissue repair in an animal model of osteoarthritis. LAT8881 has been assessed in clinical trials for the treatment of obesity and neuropathy and has an excellent safety profile. We investigated the potential for LAT8881, its metabolite LAT9991F and LAT7771 derived from prolactin, a growth hormone structural homologue, to treat severe IAV infection. Methods LAT8881, LAT9991F and LAT7771 were evaluated for their effects on cell viability and IAV replication in vitro, as well as their potential to limit disease in a preclinical mouse model of severe IAV infection. Results In vitro LAT8881 treatment enhanced cell viability, particularly in the presence of cytotoxic stress, which was countered by siRNA inhibition of host lanthionine synthetase C‐like proteins. Daily intranasal treatment of mice with LAT8881 or LAT9991F, but not LAT7771, from day 1 postinfection significantly improved influenza disease resistance, which was associated with reduced infectious viral loads, reduced pro‐inflammatory cytokines and increased abundance of protective alveolar macrophages. LAT8881 treatment in combination with the antiviral oseltamivir phosphate led to more pronounced reduction in markers of disease severity than treatment with either compound alone. Conclusion These studies provide the first evidence identifying LAT8881 and LAT9991F as novel host‐protective therapies that improve survival, limit viral replication, reduce local inflammation and curtail tissue damage during severe IAV infection. Evaluation of LAT8881 and LAT9991F in other infectious and inflammatory conditions of the airways is warranted.
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Affiliation(s)
- Christopher M Harpur
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
| | - Alison C West
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
| | - Mélanie A Le Page
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
| | - Maggie Lam
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
| | - Christopher Hodges
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
| | - Osezua Oseghale
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
| | | | - Michelle D Tate
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVICAustralia
- Department of Molecular and Translational SciencesMonash UniversityClaytonVICAustralia
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11
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Creisher PS, Seddu K, Mueller AL, Klein SL. Biological Sex and Pregnancy Affect Influenza Pathogenesis and Vaccination. Curr Top Microbiol Immunol 2023; 441:111-137. [PMID: 37695427 DOI: 10.1007/978-3-031-35139-6_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Males and females differ in the outcome of influenza A virus (IAV) infections, which depends significantly on age. During seasonal influenza epidemics, young children (< 5 years of age) and aged adults (65+ years of age) are at greatest risk for severe disease, and among these age groups, males tend to suffer a worse outcome from IAV infection than females. Following infection with pandemic strains of IAVs, females of reproductive ages (i.e., 15-49 years of age) experience a worse outcome than their male counterparts. Although females of reproductive ages experience worse outcomes from IAV infection, females typically have greater immune responses to influenza vaccination as compared with males. Among females of reproductive ages, pregnancy is one factor linked to an increased risk of severe outcome of influenza. Small animal models of influenza virus infection and vaccination illustrate that immune responses and repair of damaged tissue following IAV infection also differ between the sexes and impact the outcome of infection. There is growing evidence that sex steroid hormones, including estrogens, progesterone, and testosterone, directly impact immune responses during IAV infection and vaccination. Greater consideration of the combined effects of sex and age as biological variables in epidemiological, clinical, and animal studies of influenza pathogenesis is needed.
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Affiliation(s)
- Patrick S Creisher
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD, United States
| | - Kumba Seddu
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD, United States
| | - Alice L Mueller
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD, United States
| | - Sabra L Klein
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD, United States.
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12
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Shi X, Wu B, Chen J, Luo J, Li M, Jiang Z, Shi Y. Enhanced activity of NLRP3 inflammasome and its proinflammatory effect in influenza A viral pneumonia. Future Virol 2022. [DOI: 10.2217/fvl-2021-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Aim: The aim of this study was to investigate the activity of NLRP3 inflammasome and its effect on inducing severe pneumonia 1 week after influenza A virus (IAV) infection. Materials & methods: The expression levels of NLRP3, caspase-1 and IL-1β were assessed in murine macrophages stimulated with IAV. And the severity of viral pneumonia in mice was explored. Results & conclusion: The data showed that although the expression of NLRP3 diverged, activity of NLRP3 inflammasome was enhanced 1 week after IAV infection, and more severe viral pneumonia was associated with IL-1β in serum. It infers that enhanced activity of NLRP3 inflammasome induces augmented expression of IL-1β and severe pneumonia in a NLRP3-independent way, 1 week after IAV infection.
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Affiliation(s)
- Xiaohan Shi
- Department of MICU, Department of Respiratory & Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, PR China
- Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, PR China
| | - Benquan Wu
- Department of MICU, Department of Respiratory & Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, PR China
- Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, PR China
| | - Junxian Chen
- Department of MICU, Department of Respiratory & Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, PR China
- Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, PR China
| | - Jinmei Luo
- Department of MICU, Department of Respiratory & Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, PR China
- Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, PR China
| | - Mei Li
- VIP Healthcare Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, PR China
| | - ZhenYou Jiang
- Department of Microbiology & Immunology, Basic Medical College, Jinan University, Guangzhou, PR China
| | - Yunfeng Shi
- Department of MICU, Department of Respiratory & Critical Care Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, PR China
- Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, PR China
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13
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McGraw MD, Yee M, Kim SY, Dylag AM, Lawrence BP, O'Reilly MA. Diacetyl inhalation impairs airway epithelial repair in mice infected with influenza A virus. Am J Physiol Lung Cell Mol Physiol 2022; 323:L578-L592. [PMID: 36068185 PMCID: PMC9639765 DOI: 10.1152/ajplung.00124.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 08/12/2022] [Accepted: 08/29/2022] [Indexed: 01/11/2023] Open
Abstract
Bronchiolitis obliterans (BO) is a debilitating disease of the small airways that can develop following exposure to toxic chemicals as well as respiratory tract infections. BO development is strongly associated with diacetyl (DA) inhalation exposures at occupationally relevant concentrations or severe influenza A viral (IAV) infections. However, it remains unclear whether lower dose exposures or more mild IAV infections can result in similar pathology. In the current work, we combined these two common environmental exposures, DA and IAV, to test whether shorter DA exposures followed by sublethal IAV infection would result in similar airways disease. Adult mice exposed to DA vapors 1 h/day for 5 consecutive days followed by infection with the airway-tropic IAV H3N2 (HKx31) resulted in increased mortality, increased bronchoalveolar lavage (BAL) neutrophil percentage, mixed obstruction and restriction by lung function, and subsequent airway remodeling. Exposure to DA or IAV alone failed to result in significant pathology, whereas mice exposed to DA + IAV showed increased α-smooth muscle actin (αSMA) and epithelial cells coexpressing the basal cell marker keratin 5 (KRT5) with the club cell marker SCGB1A1. To test whether DA exposure impairs epithelial repair after IAV infection, mice were infected first with IAV and then exposed to DA during airway epithelial repair. Mice exposed to IAV + DA developed similar airway remodeling with increased subepithelial αSMA and epithelial cells coexpressing KRT5 and SCGB1A1. Our findings reveal an underappreciated concept that common environmental insults while seemingly harmless by themselves can have catastrophic implications on lung function and long-term respiratory health when combined.
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Affiliation(s)
- Matthew D McGraw
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
| | - Min Yee
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - So-Young Kim
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - Andrew M Dylag
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - B Paige Lawrence
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
| | - Michael A O'Reilly
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
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14
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Warren R, Dylag AM, Behan M, Domm W, Yee M, Mayer-Pröschel M, Martinez-Sobrido L, O'Reilly MA. Ataxia telangiectasia mutated is required for efficient proximal airway epithelial cell regeneration following influenza A virus infection. Am J Physiol Lung Cell Mol Physiol 2022; 322:L581-L592. [PMID: 35196880 PMCID: PMC8993527 DOI: 10.1152/ajplung.00378.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/11/2022] [Accepted: 02/21/2022] [Indexed: 11/22/2022] Open
Abstract
Children and young adults with mutant forms of ataxia telangiectasia mutated (ATM), a kinase involved in DNA damage signaling and mitochondrial homeostasis, suffer from recurrent respiratory infections, immune deficiencies, and obstructive airways disease associated with disorganized airway epithelium. We previously showed in mice how Atm was required to mount a protective immune memory response to influenza A virus [IAV; Hong Kong/X31 (HKx31), H3N2]. Here, Atm wildtype (WT) and knockout (Atm-null) mice were used to investigate how Atm is required to regenerate the injured airway epithelium following IAV infection. When compared with WT mice, naive Atm-null mice had increased airway resistance and reduced lung compliance that worsened during infection before returning to naïve levels by 56 days postinfection (dpi). Although Atm-null lungs appeared pathologically normal before infection by histology, they developed an abnormal proximal airway epithelium after infection that contained E-cadherin+, Sox2+, and Cyp2f2+ cells lacking secretoglobin family 1 A member 1 (Scgb1a1) protein expression. Patchy and low expression of Scgb1a1 were eventually observed by 56 dpi. Genetic lineage tracing in HKx31-infected mice revealed club cells require Atm to rapidly and efficiently restore Scgb1a1 expression in proximal airways. Since Scgb1a1 is an immunomodulatory protein that protects the lung against a multitude of respiratory challenges, failure to efficiently restore its expression may contribute to the respiratory diseases seen in individuals with ataxia telangiectasia.
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Affiliation(s)
- Rachel Warren
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Andrew M Dylag
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Molly Behan
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - William Domm
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Min Yee
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Margot Mayer-Pröschel
- Biomedical Genetics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Luis Martinez-Sobrido
- Disease Intervention and Prevention Program, Texas Biomedical Research Institute, San Antonio, Texas
| | - Michael A O'Reilly
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
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15
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Nguyen QV, Chong LC, Hor YY, Lew LC, Rather IA, Choi SB. Role of Probiotics in the Management of COVID-19: A Computational Perspective. Nutrients 2022; 14:274. [PMID: 35057455 PMCID: PMC8781206 DOI: 10.3390/nu14020274] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 02/01/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) was declared a pandemic at the beginning of 2020, causing millions of deaths worldwide. Millions of vaccine doses have been administered worldwide; however, outbreaks continue. Probiotics are known to restore a stable gut microbiota by regulating innate and adaptive immunity within the gut, demonstrating the possibility that they may be used to combat COVID-19 because of several pieces of evidence suggesting that COVID-19 has an adverse impact on gut microbiota dysbiosis. Thus, probiotics and their metabolites with known antiviral properties may be used as an adjunctive treatment to combat COVID-19. Several clinical trials have revealed the efficacy of probiotics and their metabolites in treating patients with SARS-CoV-2. However, its molecular mechanism has not been unraveled. The availability of abundant data resources and computational methods has significantly changed research finding molecular insights between probiotics and COVID-19. This review highlights computational approaches involving microbiome-based approaches and ensemble-driven docking approaches, as well as a case study proving the effects of probiotic metabolites on SARS-CoV-2.
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Affiliation(s)
- Quang Vo Nguyen
- Centre for Bioinformatics, School of Data Sciences, Perdana University, Suite 9.2, 9th Floor, Wisma Chase Perdana, Changkat Semantan, Wilayah Persekutuan, Kuala Lumpur 50490, Malaysia;
| | - Li Chuin Chong
- Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Beykoz, Istanbul 34820, Turkey;
| | - Yan-Yan Hor
- Department of Biotechnology, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Korea;
| | - Lee-Ching Lew
- Probionic Corporation, Jeonbuk Institute for Food-Bioindustry, Jeonju 54810, Korea;
| | - Irfan A. Rather
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Center of Excellence in Bionanoscience Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Sy-Bing Choi
- Centre for Bioinformatics, School of Data Sciences, Perdana University, Suite 9.2, 9th Floor, Wisma Chase Perdana, Changkat Semantan, Wilayah Persekutuan, Kuala Lumpur 50490, Malaysia;
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16
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Dylag AM, Haak J, Warren R, Yee M, Pryhuber GS, O'Reilly MA. Low Dose Hyperoxia Primes Airways for Fibrosis in Mice after Influenza A Infection. Am J Physiol Lung Cell Mol Physiol 2021; 321:L750-L763. [PMID: 34323115 DOI: 10.1152/ajplung.00289.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
It is well known that supplemental oxygen used to treat preterm infants in respiratory distress is associated with permanently disrupting lung development and the host response to influenza A virus (IAV). However, many infants who go home with normally functioning lungs are also at risk for hyperreactivity after a respiratory viral infection. We recently reported a new, low-dose hyperoxia mouse model (40% for 8 days; 40x8) that causes a transient change in lung function that resolves, rendering 40x8 adult animals functionally indistinguishable from room air controls. Here we reported that when infected with IAV, 40x8 mice display an early transient activation of TGFβ signaling and later airway hyperreactivity associated with peribronchial inflammation (profibrotic macrophages) and fibrosis compared to infected room air controls, suggesting neonatal oxygen induced hidden molecular changes that prime the lung for hyperreactive airways disease. While searching for potential activators of TGFβ signaling, we discovered that thrombospondin-1 (TSP-1) is elevated in naïve 40x8 mice compared to controls and localized to lung megakaryocytes and platelets before and during IAV infection. Elevated TSP-1 was also identified in human autopsy samples of former preterm infants with bronchopulmonary dysplasia. These findings reveal how low doses of oxygen that do not durably change lung function may prime it for hyperreactive airways disease by changing expression of genes, such as TSP-1, thus helping to explain why former preterm infants who have normal lung function are susceptible to airway obstruction and increased morbidity after viral infection.
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Affiliation(s)
- Andrew M Dylag
- Department of Pediatrics, University of Rochester, Rochester, NY, United States
| | - Jeannie Haak
- Department of Pediatrics, University of Rochester, Rochester, NY, United States
| | - Rachel Warren
- Department of Microbiology and Immunology, University of Rochester, Rochester, NY, United States
| | - Min Yee
- Department of Pediatrics, University of Rochester, Rochester, NY, United States
| | - Gloria S Pryhuber
- Department of Pediatrics, University of Rochester, Rochester, NY, United States
| | - Michael A O'Reilly
- Department of Pediatrics, University of Rochester, Rochester, NY, United States
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17
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Harpur CM, Le Page MA, Tate MD. Too young to die? How aging affects cellular innate immune responses to influenza virus and disease severity. Virulence 2021; 12:1629-1646. [PMID: 34152253 PMCID: PMC8218692 DOI: 10.1080/21505594.2021.1939608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Influenza is a respiratory viral infection that causes significant morbidity and mortality worldwide. The innate immune cell response elicited during influenza A virus (IAV) infection forms the critical first line of defense, which typically is impaired as we age. As such, elderly individuals more commonly succumb to influenza-associated complications, which is reflected in most aged animal models of IAV infection. Here, we review the important roles of several major innate immune cell populations in influenza pathogenesis, some of which being deleterious to the host, and the current knowledge of how age-associated numerical, phenotypic and functional cell changes impact disease development. Further investigation into age-related modulation of innate immune cell responses, using appropriate animal models, will help reveal how immunity to IAV may be compromised by aging and inform the development of novel therapies, tailored for use in this vulnerable group.
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Affiliation(s)
- Christopher M Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Australia
| | - Mélanie A Le Page
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Australia
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18
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Abstract
Biological sex affects the outcome of diverse respiratory viral infections. The pathogenesis of respiratory infections caused by viruses ranging from respiratory syncytial virus to influenza viruses and severe acute respiratory syndrome coronavirus 2 differs between the sexes across the life course. Generally, males are more susceptible to severe outcomes from respiratory viral infections at younger and older ages. During reproductive years (i.e., after puberty and prior to menopause), females are often at greater risk than males for severe outcomes. Pregnancy and biological sex affect the pathogenesis of respiratory viral infections. In addition to sex differences in the pathogenesis of disease, there are consistent sex differences in responses to treatments, with females often developing greater immune responses but experiencing more adverse reactions than males. Animal models provide mechanistic insights into the causes of sex differences in respiratory virus pathogenesis and treatment outcomes, where available. Expected final online publication date for the Annual Review of Virology, Volume 8 is September 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Rebecca L Ursin
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA 21205;
| | - Sabra L Klein
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA 21205; .,W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Maryland, USA 21205
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19
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Bawazeer AO, Rosli S, Harpur CM, Docherty CA, Mansell A, Tate MD. Interleukin-1β exacerbates disease and is a potential therapeutic target to reduce pulmonary inflammation during severe influenza A virus infection. Immunol Cell Biol 2021; 99:737-748. [PMID: 33834544 PMCID: PMC8453884 DOI: 10.1111/imcb.12459] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/16/2021] [Accepted: 04/07/2021] [Indexed: 12/13/2022]
Abstract
Hyperinflammatory responses including the production of NLRP3-dependent interleukin (IL)-1β is a characteristic feature of severe and fatal influenza A virus (IAV) infections. The NLRP3 inflammasome has been shown to play a temporal role during severe IAV immune responses, with early protective and later detrimental responses. However, the specific contribution of IL-1β in modulating IAV disease in vivo is currently not well defined. Here, we identified that activation of NLRP3-dependent IL-1β responses occurs rapidly following HKx31 H3N2 infection, prior to the onset of severe IAV disease. Mature IL-1β was detectable in vivo in both hemopoietic and nonhemopoietic cells. Significantly, therapeutic inhibition of IL-1β in the airways with intranasal anti-IL-1β antibody treatment from day 3 postinfection, corresponding to the onset of clinical signs of disease, significantly prolonged survival and reduced inflammation in the airways. Importantly, early targeting of IL-1β from day 1 postinfection also improved survival. Together, these studies specifically define a role for IL-1β in contributing to the development of hyperinflammation and disease and indicate that targeting IL-1β is a potential therapeutic strategy for severe IAV infections.
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Affiliation(s)
- Abdulah Os Bawazeer
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia.,King Faisal Medical City for Southern Regions, Abha, Saudi Arabia
| | - Sarah Rosli
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
| | - Christopher M Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
| | - Callum Ah Docherty
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
| | - Ashley Mansell
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
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20
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Laghlali G, Lawlor KE, Tate MD. Die Another Way: Interplay between Influenza A Virus, Inflammation and Cell Death. Viruses 2020; 12:v12040401. [PMID: 32260457 PMCID: PMC7232208 DOI: 10.3390/v12040401] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 02/08/2023] Open
Abstract
Influenza A virus (IAV) is a major concern to human health due to the ongoing global threat of a pandemic. Inflammatory and cell death signalling pathways play important roles in host defence against IAV infection. However, severe IAV infections in humans are characterised by excessive inflammation and tissue damage, often leading to fatal disease. While the molecular mechanisms involved in the induction of inflammation during IAV infection have been well studied, the pathways involved in IAV-induced cell death and their impact on immunopathology have not been fully elucidated. There is increasing evidence of significant crosstalk between cell death and inflammatory pathways and a greater understanding of their role in host defence and disease may facilitate the design of new treatments for IAV infection.
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Affiliation(s)
- Gabriel Laghlali
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (G.L.); (K.E.L.)
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
- Master de Biologie, École Normale Supérieure de Lyon, Université Claude Bernard Lyon I, Université de Lyon, 69007 Lyon, France
| | - Kate E. Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (G.L.); (K.E.L.)
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
| | - Michelle D. Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (G.L.); (K.E.L.)
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
- Correspondence: ; Tel.: +61-85722742
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21
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Chao TL, Gu SY, Lin PH, Chou YT, Ling TY, Chang SY. Characterization of Influenza A Virus Infection in Mouse Pulmonary Stem/Progenitor Cells. Front Microbiol 2020; 10:2942. [PMID: 32038512 PMCID: PMC6985155 DOI: 10.3389/fmicb.2019.02942] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/06/2019] [Indexed: 12/26/2022] Open
Abstract
The pulmonary stem/progenitor cells, which could be differentiated into downstream cells to repair tissue damage caused by influenza A virus, have also been shown to be the target cells of influenza virus infection. In this study, mouse pulmonary stem/progenitor cells (mPSCs) with capability to differentiate into type I or type II alveolar cells were used as an in vitro cell model to characterize replication and pathogenic effects of influenza viruses in PSCs. First, mPSCs and its immortalized cell line mPSCsOct4+ were shown to be susceptible to PR8, seasonal H1N1, 2009 pandemic H1N1, and H7N9 influenza viruses and can generate infectious virus particles, although with a lower virus titer, which could be attributed by the reduced vRNA replication and nucleoprotein (NP) aggregation in the cytoplasm. Nevertheless, a significant increase of interleukin (IL)-6 and interferon (IFN)-γ at 12 h and IFN-β at 24 h post infection in mPSCs implicates that mPSCs might function as a sensor to modulate immune responses to influenza virus infection. In summary, our results demonstrated mPSCs, as one of the target cells for influenza A viruses, could modulate early proinflammatory responses to influenza virus infection.
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Affiliation(s)
- Tai-Ling Chao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Sing-Yi Gu
- Department of Pharmacology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Pi-Han Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Tien Chou
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Thai-Yen Ling
- Department of Pharmacology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
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22
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Misra RS, Nayak JL. The Importance of Vaccinating Children and Pregnant Women against Influenza Virus Infection. Pathogens 2019; 8:pathogens8040265. [PMID: 31779153 PMCID: PMC6963306 DOI: 10.3390/pathogens8040265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 12/21/2022] Open
Abstract
Influenza virus infection is responsible for significant morbidity and mortality in the pediatric and pregnant women populations, with deaths frequently caused by severe influenza-associated lower respiratory tract infection and acute respiratory distress syndrome (ARDS). An appropriate immune response requires controlling the viral infection through activation of antiviral defenses, which involves cells of the lung and immune system. High levels of viral infection or high levels of inflammation in the lower airways can contribute to ARDS. Pregnant women and young children, especially those born prematurely, may develop serious complications if infected with influenza virus. Vaccination against influenza will lead to lower infection rates and fewer complications, even if the vaccine is poorly matched to circulating viral strains, with maternal vaccination offering infants protection via antibody transmission through the placenta and breast milk. Despite the health benefits of the influenza vaccine, vaccination rates around the world remain well below targets. Trust in the use of vaccines among the public must be restored in order to increase vaccination rates and decrease the public health burden of influenza.
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Affiliation(s)
- Ravi S Misra
- Department of Pediatrics Division of Neonatology, The University of Rochester Medical Center, Rochester, NY 14623, USA
- Correspondence:
| | - Jennifer L Nayak
- Department of Pediatrics Division of Pediatric Infectious Diseases, The University of Rochester Medical Center, Rochester, NY 14623, USA;
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23
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Fujino N, Brand OJ, Morgan DJ, Fujimori T, Grabiec AM, Jagger CP, Maciewicz RA, Yamada M, Itakura K, Sugiura H, Ichinose M, Hussell T. Sensing of apoptotic cells through Axl causes lung basal cell proliferation in inflammatory diseases. J Exp Med 2019; 216:2184-2201. [PMID: 31289116 PMCID: PMC6719415 DOI: 10.1084/jem.20171978] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 03/18/2019] [Accepted: 06/14/2019] [Indexed: 12/16/2022] Open
Abstract
Epithelial cell proliferation, division, and differentiation are critical for barrier repair following inflammation, but the initial trigger for this process is unknown. Here we define that sensing of apoptotic cells by the TAM receptor tyrosine kinase Axl is a critical indicator for tracheal basal cell expansion, cell cycle reentry, and symmetrical cell division. Furthermore, once the pool of tracheal basal cells has expanded, silencing of Axl is required for their differentiation. Genetic depletion of Axl triggers asymmetrical cell division, leading to epithelial differentiation and ciliated cell regeneration. This discovery has implications for conditions associated with epithelial barrier dysfunction, basal cell hyperplasia, and continued turnover of dying cells in patients with chronic inflammatory pulmonary diseases.
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Affiliation(s)
- Naoya Fujino
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Oliver J Brand
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
- Lydia Becker Institute of Immunology and Inflammation, the University of Manchester, Manchester, UK
| | - David J Morgan
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
- Lydia Becker Institute of Immunology and Inflammation, the University of Manchester, Manchester, UK
| | - Toshifumi Fujimori
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
| | - Aleksander M Grabiec
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Christopher P Jagger
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
- Lydia Becker Institute of Immunology and Inflammation, the University of Manchester, Manchester, UK
| | - Rose A Maciewicz
- Respiratory, Inflammation, and Autoimmunity Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Gothenburg, Sweden
- Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, UK
| | - Mitsuhiro Yamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koji Itakura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masakazu Ichinose
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tracy Hussell
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, UK
- Lydia Becker Institute of Immunology and Inflammation, the University of Manchester, Manchester, UK
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24
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Rosli S, Tate MD. TANKing Influenza A Virus in the Lung. Am J Respir Cell Mol Biol 2019; 60:255-256. [PMID: 30365353 DOI: 10.1165/rcmb.2018-0337ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Sarah Rosli
- 1 Centre for Innate Immunity and Infectious Diseases Hudson Institute of Medical Research Clayton, Australia and.,2 Department of Molecular and Translational Sciences Monash University Clayton, Australia
| | - Michelle D Tate
- 1 Centre for Innate Immunity and Infectious Diseases Hudson Institute of Medical Research Clayton, Australia and.,2 Department of Molecular and Translational Sciences Monash University Clayton, Australia
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25
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Laghlali G, Tate MD. Targeting endosomal NOX2 as a potential therapy to limit influenza A virus infection. Respirology 2019; 24:935-936. [PMID: 31225681 DOI: 10.1111/resp.13629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 06/04/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Gabriel Laghlali
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Melbourne, VIC, Australia.,Master de Biologie, École Normale Supérieure de Lyon, Université Claude Bernard Lyon I, Université de Lyon, Lyon, France
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Melbourne, VIC, Australia.,Department of Molecular and Translational Sciences, Monash University, Melbourne, VIC, Australia
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26
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Morgan R, Klein SL. The intersection of sex and gender in the treatment of influenza. Curr Opin Virol 2019; 35:35-41. [PMID: 30901632 DOI: 10.1016/j.coviro.2019.02.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/06/2019] [Accepted: 02/12/2019] [Indexed: 12/19/2022]
Abstract
Males/men and females/women differ in the outcome of influenza A virus (IAV) infections, vaccination, and antiviral treatments. Both sex (i.e. biological factors) and gender (i.e. sociocultural factors) can impact exposure and severity of IAV infections as well as responses and outcomes of treatments for IAV. Greater consideration of the combined effects of sex and gender in epidemiological, clinical, and animal studies of influenza pathogenesis is needed.
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Affiliation(s)
- Rosemary Morgan
- Department of International Health, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Sabra L Klein
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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27
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Unique Transcriptional Architecture in Airway Epithelial Cells and Macrophages Shapes Distinct Responses following Influenza Virus Infection Ex Vivo. J Virol 2019; 93:JVI.01986-18. [PMID: 30626665 DOI: 10.1128/jvi.01986-18] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 12/19/2018] [Indexed: 12/15/2022] Open
Abstract
Airway epithelial cells and macrophages differ markedly in their responses to influenza A virus (IAV) infection. To investigate transcriptional responses underlying these differences, purified subsets of type II airway epithelial cells (ATII) and alveolar macrophages (AM) recovered from the lungs of mock- or IAV-infected mice at 9 h postinfection were subjected to RNA sequencing. This time point was chosen to allow for characterization of cell types first infected with the virus inoculum, prior to multicycle virus replication and the infiltration of inflammatory cells into the airways. In the absence of infection, AM predominantly expressed genes related to immunity, whereas ATII expressed genes consistent with their physiological roles in the lung. Following IAV infection, AM almost exclusively activated cell-intrinsic antiviral pathways that were dependent on interferon (IFN) regulatory factor 3/7 (IRF3/7) and/or type I IFN signaling. In contrast, IAV-infected ATII activated a broader range of physiological responses, including cell-intrinsic antiviral pathways, which were both independent of and dependent on IRF3/7 and/or type I IFN. These data suggest that transcriptional profiles hardwired during development are a major determinant underlying the different responses of ATII and AM to IAV infection.IMPORTANCE Airway epithelial cells (AEC) and airway macrophages (AM) represent major targets of influenza A virus (IAV) infection in the lung, yet the two cell types respond very differently to IAV infection. We have used RNA sequencing to define the host transcriptional responses in each cell type under steady-state conditions as well as following IAV infection. To do this, different cell subsets isolated from the lungs of mock- and IAV-infected mice were subjected to RNA sequencing. Under steady-state conditions, AM and AEC express distinct transcriptional activities, consistent with distinct physiological roles in the airways. Not surprisingly, these cells also exhibited major differences in transcriptional responses following IAV infection. These studies shed light on how the different transcriptional architectures of airway cells from two different lineages drive transcriptional responses to IAV infection.
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28
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Vom Steeg LG, Klein SL. Sex and sex steroids impact influenza pathogenesis across the life course. Semin Immunopathol 2019; 41:189-194. [PMID: 30298431 PMCID: PMC6370518 DOI: 10.1007/s00281-018-0718-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 09/24/2018] [Indexed: 10/28/2022]
Abstract
Males and females differ in the outcome of influenza A virus (IAV) infections, which depends significantly on age. During a typical seasonal influenza epidemic, young children (< 10 years of age) and aged adults (65+ years of age) are at greatest risk for severe disease, and among these age groups, males tend to suffer a worse outcome from IAV infection than females. Following infection with either pandemic or outbreak strains of IAVs, females of reproductive ages (i.e., 15-49 years of age) experience a worse outcome than their male counterparts. Among females of reproductive ages, pregnancy is one factor linked to an increased risk of severe outcome of influenza, although it is not the sole factor explaining the female-preponderance of severe disease. Small animal models of influenza virus infection illustrate that inflammatory immune responses and repair of damaged tissue following IAV infection also differ between the sexes and impact the outcome of infection. There also is growing evidence that sex steroid hormones, including estrogens, progesterone, and testosterone, directly impact immune responses during IAV infection to alter outcomes. Greater consideration of the combined effects of sex and age as biological variables in epidemiological, clinical, and animal studies of influenza pathogenesis is needed.
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Affiliation(s)
- Landon G Vom Steeg
- Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Sabra L Klein
- Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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29
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Role of Nrf2 and Its Activators in Respiratory Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7090534. [PMID: 30728889 PMCID: PMC6341270 DOI: 10.1155/2019/7090534] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/22/2018] [Accepted: 12/03/2018] [Indexed: 02/07/2023]
Abstract
Transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) is a major regulator of antioxidant response element- (ARE-) driven cytoprotective protein expression. The activation of Nrf2 signaling plays an essential role in preventing cells and tissues from injury induced by oxidative stress. Under the unstressed conditions, natural inhibitor of Nrf2, Kelch-like ECH-associated protein 1 (Keap1), traps Nrf2 in the cytoplasm and promotes the degradation of Nrf2 by the 26S proteasome. Nevertheless, stresses including highly oxidative microenvironments, impair the ability of Keap1 to target Nrf2 for ubiquitination and degradation, and induce newly synthesized Nrf2 to translocate to the nucleus to bind with ARE. Due to constant exposure to external environments, including diverse pollutants and other oxidants, the redox balance maintained by Nrf2 is fairly important to the airways. To date, researchers have discovered that Nrf2 deletion results in high susceptibility and severity of insults in various models of respiratory diseases, including bronchopulmonary dysplasia (BPD), respiratory infections, acute respiratory distress syndrome (ARDS), chronic obstructive pulmonary disease (COPD), asthma, idiopathic pulmonary fibrosis (IPF), and lung cancer. Conversely, Nrf2 activation confers protective effects on these lung disorders. In the present review, we summarize Nrf2 involvement in the pathogenesis of the above respiratory diseases that have been identified by experimental models and human studies and describe the protective effects of Nrf2 inducers on these diseases.
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30
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van Wilgenburg B, Loh L, Chen Z, Pediongco TJ, Wang H, Shi M, Zhao Z, Koutsakos M, Nüssing S, Sant S, Wang Z, D'Souza C, Jia X, Almeida CF, Kostenko L, Eckle SBG, Meehan BS, Kallies A, Godfrey DI, Reading PC, Corbett AJ, McCluskey J, Klenerman P, Kedzierska K, Hinks TSC. MAIT cells contribute to protection against lethal influenza infection in vivo. Nat Commun 2018; 9:4706. [PMID: 30413689 PMCID: PMC6226485 DOI: 10.1038/s41467-018-07207-9] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 10/16/2018] [Indexed: 01/28/2023] Open
Abstract
Mucosal associated invariant T (MAIT) cells are evolutionarily-conserved, innate-like lymphocytes which are abundant in human lungs and can contribute to protection against pulmonary bacterial infection. MAIT cells are also activated during human viral infections, yet it remains unknown whether MAIT cells play a significant protective or even detrimental role during viral infections in vivo. Using murine experimental challenge with two strains of influenza A virus, we show that MAIT cells accumulate and are activated early in infection, with upregulation of CD25, CD69 and Granzyme B, peaking at 5 days post-infection. Activation is modulated via cytokines independently of MR1. MAIT cell-deficient MR1-/- mice show enhanced weight loss and mortality to severe (H1N1) influenza. This is ameliorated by prior adoptive transfer of pulmonary MAIT cells in both immunocompetent and immunodeficient RAG2-/-γC-/- mice. Thus, MAIT cells contribute to protection during respiratory viral infections, and constitute a potential target for therapeutic manipulation.
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Affiliation(s)
- Bonnie van Wilgenburg
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
- Peter Medawar Building for Pathogen Research and Translational Gastroenterology Unit, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, OX3 3SY, UK
| | - Liyen Loh
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Zhenjun Chen
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Troi J Pediongco
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Huimeng Wang
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Mai Shi
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Zhe Zhao
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Marios Koutsakos
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Simone Nüssing
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Sneha Sant
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Zhongfang Wang
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Criselle D'Souza
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Xiaoxiao Jia
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Catarina F Almeida
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
- ARC Centre of Excellence in Advanced Molecular Imaging, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Lyudmila Kostenko
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Sidonia B G Eckle
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Bronwyn S Meehan
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Axel Kallies
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Dale I Godfrey
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
- ARC Centre of Excellence in Advanced Molecular Imaging, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Patrick C Reading
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Alexandra J Corbett
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - James McCluskey
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Paul Klenerman
- Peter Medawar Building for Pathogen Research and Translational Gastroenterology Unit, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, OX3 3SY, UK.
| | - Katherine Kedzierska
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
| | - Timothy S C Hinks
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3000, Australia
- Respiratory Medicine Unit, Nuffield Department of Medicine, Experimental Medicine Division, University of Oxford, Oxford, OX3 9DU, UK
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31
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Downey J, Pernet E, Coulombe F, Divangahi M. Dissecting host cell death programs in the pathogenesis of influenza. Microbes Infect 2018; 20:560-569. [PMID: 29679740 PMCID: PMC7110448 DOI: 10.1016/j.micinf.2018.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 02/06/2023]
Abstract
Influenza A virus (IAV) is a pulmonary pathogen, responsible for significant yearly morbidity and mortality. Due to the absence of highly effective antiviral therapies and vaccine, as well as the constant threat of an emerging pandemic strain, there is considerable need to better understand the host-pathogen interactions and the factors that dictate a protective versus detrimental immune response to IAV. Even though evidence of IAV-induced cell death in human pulmonary epithelial and immune cells has been observed for almost a century, very little is known about the consequences of cell death on viral pathogenesis. Recent study indicates that both the type of cell death program and its kinetics have major implications on host defense and survival. In this review, we discuss advances in our understanding of cell death programs during influenza virus infection, in hopes of fostering new areas of investigation for targeted clinical intervention.
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Affiliation(s)
- Jeffrey Downey
- Department of Medicine, Department of Microbiology & Immunology, Department of Pathology, McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Canada
| | - Erwan Pernet
- Department of Medicine, Department of Microbiology & Immunology, Department of Pathology, McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Canada
| | - François Coulombe
- Department of Medicine, Department of Microbiology & Immunology, Department of Pathology, McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Canada
| | - Maziar Divangahi
- Department of Medicine, Department of Microbiology & Immunology, Department of Pathology, McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Canada.
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32
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Vermillion MS, Ursin RL, Kuok DIT, Vom Steeg LG, Wohlgemuth N, Hall OJ, Fink AL, Sasse E, Nelson A, Ndeh R, McGrath-Morrow S, Mitzner W, Chan MCW, Pekosz A, Klein SL. Production of amphiregulin and recovery from influenza is greater in males than females. Biol Sex Differ 2018; 9:24. [PMID: 30012205 PMCID: PMC6048771 DOI: 10.1186/s13293-018-0184-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 05/30/2018] [Indexed: 01/07/2023] Open
Abstract
Background Amphiregulin (AREG) is an epidermal growth factor that is a significant mediator of tissue repair at mucosal sites, including in the lungs during influenza A virus (IAV) infection. Previous research illustrates that males of reproductive ages experience less severe disease and recover faster than females following infection with IAV. Methods Whether males and females differentially produce and utilize AREG for pulmonary repair after IAV infection was investigated using murine models on a C57BL/6 background and primary mouse and human epithelial cell culture systems. Results Following sublethal infection with 2009 H1N1 IAV, adult female mice experienced greater morbidity and pulmonary inflammation during the acute phase of infection as well as worse pulmonary function during the recovery phase of infection than males, despite having similar virus clearance kinetics. As compared with females, AREG expression was greater in the lungs of male mice as well as in primary respiratory epithelial cells derived from mouse and human male donors, in response to H1N1 IAVs. Internalization of the epidermal growth factor receptor (EGFR) was also greater in respiratory epithelial cells derived from male than female mice. IAV infection of Areg knock-out (Areg−/−) mice eliminated sex differences in IAV pathogenesis, with a more significant role for AREG in infection of male compared to female mice. Deletion of Areg had no effect on virus replication kinetics in either sex. Gonadectomy and treatment of either wild-type or Areg−/− males with testosterone improved the outcome of IAV as compared with their placebo-treated conspecifics. Conclusions Taken together, these data show that elevated levels of testosterone and AREG, either independently or in combination, improve resilience (i.e., repair and recovery of damaged tissue) and contribute to better influenza outcomes in males compared with females.
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Affiliation(s)
- Meghan S Vermillion
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Molecular and Comparative Pathobiology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Rebecca L Ursin
- Department of Biochemistry and Molecular Biology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Denise I T Kuok
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Landon G Vom Steeg
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Nicholas Wohlgemuth
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Olivia J Hall
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ashley L Fink
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Eric Sasse
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Andrew Nelson
- Department of Environmental Health and Engineering, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Roland Ndeh
- Department of Pediatrics, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Sharon McGrath-Morrow
- Department of Environmental Health and Engineering, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Department of Pediatrics, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Wayne Mitzner
- Department of Environmental Health and Engineering, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Michael C W Chan
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Andrew Pekosz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Department of Environmental Health and Engineering, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Sabra L Klein
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. .,Department of Biochemistry and Molecular Biology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Naumenko V, Turk M, Jenne CN, Kim SJ. Neutrophils in viral infection. Cell Tissue Res 2018; 371:505-516. [PMID: 29327081 DOI: 10.1007/s00441-017-2763-0] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/28/2017] [Indexed: 12/20/2022]
Abstract
Neutrophils are the first wave of recruited immune cells to sites of injury or infection and are crucial players in controlling bacterial and fungal infections. Although the role of neutrophils during bacterial or fungal infections is well understood, their impact on antiviral immunity is much less studied. Furthermore, neutrophil function in tumor pathogenesis and cancer treatment has recently received much attention, particularly within the context of oncolytic virus infection where neutrophils produce antitumor cytokines and enhance oncolysis. In this review, multiple functions of neutrophils in viral infections and immunity are discussed. Understanding the role of neutrophils during viral infection may provide insight into the pathogenesis of virus infections and the outcome of virus-based therapies.
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Affiliation(s)
- Victor Naumenko
- Department of Microbiology, Immunology and Infectious Diseases, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, HRIC 3330 Hospital Drive N.W, Calgary, Alberta, T2N 4N1, Canada.,National University of Science and Technology "MISIS", Leninskiy prospect 4, 119991, Moscow, Russia
| | - Madison Turk
- Department of Microbiology, Immunology and Infectious Diseases, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, HRIC 3330 Hospital Drive N.W, Calgary, Alberta, T2N 4N1, Canada
| | - Craig N Jenne
- Department of Microbiology, Immunology and Infectious Diseases, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, HRIC 3330 Hospital Drive N.W, Calgary, Alberta, T2N 4N1, Canada. .,Calvin, Phoebe & Joan Snyder Institute for Chronic Diseases, Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, HRIC 2C26, 3280 Hospital Drive N.W., Calgary, Alberta, T2N 4N1, Canada.
| | - Seok-Joo Kim
- Department of Microbiology, Immunology and Infectious Diseases, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, HRIC 3330 Hospital Drive N.W, Calgary, Alberta, T2N 4N1, Canada. .,Calvin, Phoebe & Joan Snyder Institute for Chronic Diseases, Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, HRIC 4C49, 3280 Hospital Drive N.W., Calgary, Alberta, T2N 4N1, Canada.
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Abstract
The lung is constantly exposed to both environmental and microbial challenge. As a "contained" organ, it also constitutes an excellent "self-contained" tissue to examine inflammatory responses and cellular infiltration into a diseased organ. Influenza A virus (IAV) causes both mild and severe inflammation that is strain specific following infection of the lung epithelium that spreads to other cells of the lung environment. Here, we describe a method of intranasal inoculation of the lung with IAV that can be used as a preclinical model of infection. Mice can be monitored for clinical signs of infection and tissue and lung fluid collected for further analysis to dissect the immunological consequences of IAV infection. Importantly, this method can be modified to introduce other pathogens, therapies and environmental stimuli to examine immune responses in the lung.
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Affiliation(s)
- Ashley Mansell
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.
- Department of Molecular Translational Science, School of Clinical Sciences, Monash University, Clayton, VIC, Australia.
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.
- Department of Molecular Translational Science, School of Clinical Sciences, Monash University, Clayton, VIC, Australia.
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35
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Jung YJ, Lee YT, Ngo VL, Cho YH, Ko EJ, Hong SM, Kim KH, Jang JH, Oh JS, Park MK, Kim CH, Sun J, Kang SM. Heat-killed Lactobacillus casei confers broad protection against influenza A virus primary infection and develops heterosubtypic immunity against future secondary infection. Sci Rep 2017; 7:17360. [PMID: 29234060 PMCID: PMC5727132 DOI: 10.1038/s41598-017-17487-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 11/23/2017] [Indexed: 02/08/2023] Open
Abstract
Lactic acid bacteria (LAB) are the common probiotics. Here, we investigated the antiviral protective effects of heat-killed LAB strain Lactobacillus casei DK128 (DK128) on influenza viruses. Intranasal treatment of mice with DK128 conferred protection against different subtypes of influenza viruses by lessening weight loss and lowering viral loads. Protection via heat-killed DK128 was correlated with an increase in alveolar macrophage cells in the lungs and airways, early induction of virus specific antibodies, reduced levels of pro-inflammatory cytokines and innate immune cells. Importantly, the mice that were protected against primary viral infection as a result of heat-killed DK128 pretreatment developed subsequent heterosubtypic immunity against secondary virus infection. For protection against influenza virus via heat-killed DK128 pretreatment, B cells and partially CD4 T cells but not CD8 T cells were required as inferred from studies using knockout mouse models. Our study provides insight into how hosts can be equipped with innate and adaptive immunity via heat-killed DK128 treatment to protect against influenza virus, supporting that heat-killed LAB may be developed as anti-virus probiotics.
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Affiliation(s)
- Yu-Jin Jung
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Young-Tae Lee
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Vu Le Ngo
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Young-Hee Cho
- Department of Animal Resource Science, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 330-714, Korea
| | - Eun-Ju Ko
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Sung-Moon Hong
- Department of Animal Resource Science, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 330-714, Korea
| | - Ki-Hye Kim
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Ji-Hun Jang
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, 331-858, Korea
| | - Joon-Suk Oh
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, 331-858, Korea
| | - Min-Kyung Park
- Department of Human Nutrition and Food Science, Chungwoon University, Namjang-Ri, Hongsung-Eup, Hongsung-Kun, Chungnam, 350-701, Korea
| | - Cheol-Hyun Kim
- Department of Animal Resource Science, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 330-714, Korea
| | - Jun Sun
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, USA
| | - Sang-Moo Kang
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA.
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36
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Ko EJ, Lee YT, Lee Y, Kim KH, Kang SM. Distinct Effects of Monophosphoryl Lipid A, Oligodeoxynucleotide CpG, and Combination Adjuvants on Modulating Innate and Adaptive Immune Responses to Influenza Vaccination. Immune Netw 2017; 17:326-342. [PMID: 29093654 PMCID: PMC5662782 DOI: 10.4110/in.2017.17.5.326] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 12/31/2022] Open
Abstract
Monophosphoryl lipid A (MPL) and oligodeoxynucleotide CpG are toll-like receptor (TLR) 4 and 9 agonist, respectively. Here, we investigated the effects of MPL, CpG, and combination adjuvants on stimulating in vitro dendritic cells (DCs), in vivo innate and adaptive immune responses, and protective efficacy of influenza vaccination. Combination of MPL and CpG was found to exhibit distinct effects on stimulating DCs in vitro to secrete IL-12p70 and tumor necrosis factor (TNF)-α and proliferate allogeneic CD8 T cells. Prime immunization of mice with inactivated split influenza vaccine in the presence of low dose MPL+CpG adjuvants increased the induction of virus-specific IgG and IgG2a isotype antibodies. MPL and CpG adjuvants contribute to improving the efficacy of prime influenza vaccination against lethal influenza challenge as determined by body weight monitoring, lung function, viral titers, and histology. A combination of MPL and CpG adjuvants was effective in improving vaccine efficacy as well as in reducing inflammatory immune responses locally and in inducing cellular immune responses upon lethal influenza virus challenge. This study demonstrates unique adjuvant effects of MPL, CpG, and combination adjuvants on modulating innate and adaptive immune responses to influenza prime vaccination.
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Affiliation(s)
- Eun-Ju Ko
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.,Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA
| | - Young-Tae Lee
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA
| | - Youri Lee
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA
| | - Ki-Hye Kim
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA
| | - Sang-Moo Kang
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA
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Cline TD, Beck D, Bianchini E. Influenza virus replication in macrophages: balancing protection and pathogenesis. J Gen Virol 2017; 98:2401-2412. [PMID: 28884667 DOI: 10.1099/jgv.0.000922] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Macrophages are essential for protection against influenza A virus infection, but are also implicated in the morbidity and mortality associated with severe influenza disease, particularly during infection with highly pathogenic avian influenza (HPAI) H5N1 virus. While influenza virus infection of macrophages was once thought to be abortive, it is now clear that certain virus strains can replicate productively in macrophages. This may have important consequences for the antiviral functions of macrophages, the course of disease and the outcome of infection for the host. In this article, we review findings related to influenza virus replication in macrophages and the impact of productive replication on macrophage antiviral functions. A clear understanding of the interactions between influenza viruses and macrophages may lead to new antiviral therapies to relieve the burden of severe disease associated with influenza viruses.
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Affiliation(s)
- Troy D Cline
- Department of Biological Sciences, California State University, Chico, California, USA
| | - Donald Beck
- Department of Biological Sciences, California State University, Chico, California, USA
| | - Elizabeth Bianchini
- Department of Biological Sciences, California State University, Chico, California, USA
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38
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Domm W, Yee M, Misra RS, Gelein R, Nogales A, Martinez-Sobrido L, O'Reilly MA. Oxygen-dependent changes in lung development do not affect epithelial infection with influenza A virus. Am J Physiol Lung Cell Mol Physiol 2017; 313:L940-L949. [PMID: 28798254 DOI: 10.1152/ajplung.00203.2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 12/16/2022] Open
Abstract
Infants born prematurely often require supplemental oxygen, which contributes to aberrant lung development and increased pulmonary morbidity following a respiratory viral infection. We have been using a mouse model to understand how early-life hyperoxia affects the adult lung response to influenza A virus (IAV) infection. Prior studies showed how neonatal hyperoxia (100% oxygen) increased sensitivity of adult mice to infection with IAV [IAV (A/Hong Kong/X31) H3N2] as defined by persistent inflammation, pulmonary fibrosis, and mortality. Since neonatal hyperoxia alters lung structure, we used a novel fluorescence-expressing reporter strain of H1N1 IAV [A/Puerto Rico/8/34 mCherry (PR8-mCherry)] to evaluate whether it also altered early infection of the respiratory epithelium. Like Hong Kong/X31, neonatal hyperoxia increased morbidity and mortality of adult mice infected with PR8-mCherry. Whole lung imaging and histology suggested a modest increase in mCherry expression in adult mice exposed to neonatal hyperoxia compared with room air-exposed animals. However, this did not reflect an increase in airway or alveolar epithelial infection when mCherry-positive cells were identified and quantified by flow cytometry. Instead, a modest increase in the number of CD45-positive macrophages expressing mCherry was detected. While neonatal hyperoxia does not alter early epithelial infection with IAV, it may increase the activity of macrophages toward infected cells, thereby enhancing early epithelial injury.
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Affiliation(s)
- William Domm
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Min Yee
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York; and
| | - Ravi S Misra
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York; and
| | - Robert Gelein
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Aitor Nogales
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Luis Martinez-Sobrido
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Michael A O'Reilly
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York; and
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39
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Yee M, Domm W, Gelein R, Bentley KLDM, Kottmann RM, Sime PJ, Lawrence BP, O'Reilly MA. Alternative Progenitor Lineages Regenerate the Adult Lung Depleted of Alveolar Epithelial Type 2 Cells. Am J Respir Cell Mol Biol 2017; 56:453-464. [PMID: 27967234 DOI: 10.1165/rcmb.2016-0150oc] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
An aberrant oxygen environment at birth increases the severity of respiratory viral infections later in life through poorly understood mechanisms. Here, we show that alveolar epithelial cell (AEC) 2 cells (AEC2s), progenitors for AEC1 cells, are depleted in adult mice exposed to neonatal hypoxia or hyperoxia. Airway cells expressing surfactant protein (SP)-C and ATP binding cassette subfamily A member 3, alveolar pod cells expressing keratin (KRT) 5, and pulmonary fibrosis were observed when these mice were infected with a sublethal dose of HKx31, H3N2 influenza A virus. This was not seen in infected siblings birthed into room air. Genetic lineage tracing studies in mice exposed to neonatal hypoxia or hyperoxia revealed pre-existing secretoglobin 1a1+ cells produced airway cells expressing SP-C and ATP binding cassette subfamily A member 3. Pre-existing Kr5+ progenitor cells produced squamous alveolar cells expressing receptor for advanced glycation endproducts, aquaporin 5, and T1α in alveoli devoid of AEC2s. They were not the source of KRT5+ alveolar pod cells. These oxygen-dependent changes in epithelial cell regeneration and fibrosis could be recapitulated by conditionally depleting AEC2s in mice using diphtheria A toxin and then infecting with influenza A virus. Likewise, airway cells expressing SP-C and alveolar cells expressing KRT5 were observed in human idiopathic pulmonary fibrosis. These findings suggest that alternative progenitor lineages are mobilized to regenerate the alveolar epithelium when AEC2s are severely injured or depleted by previous insults, such as an adverse oxygen environment at birth. Because these lineages regenerate AECs in spatially distinct compartments of a lung undergoing fibrosis, they may not be sufficient to prevent disease.
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Affiliation(s)
| | | | | | | | - R Matthew Kottmann
- 4 Department of Medicine, School of Medicine and Dentistry, The University of Rochester, Rochester, New York
| | - Patricia J Sime
- 4 Department of Medicine, School of Medicine and Dentistry, The University of Rochester, Rochester, New York
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40
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VanLeuven JT, Ridenhour BJ, Gonzalez AJ, Miller CR, Miura TA. Lung epithelial cells have virus-specific and shared gene expression responses to infection by diverse respiratory viruses. PLoS One 2017; 12:e0178408. [PMID: 28575086 PMCID: PMC5456070 DOI: 10.1371/journal.pone.0178408] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 05/13/2017] [Indexed: 12/28/2022] Open
Abstract
The severity of respiratory viral infections is partially determined by the cellular response mounted by infected lung epithelial cells. Disease prevention and treatment is dependent on our understanding of the shared and unique responses elicited by diverse viruses, yet few studies compare host responses to viruses from different families while controlling other experimental parameters. Murine models are commonly used to study the pathogenesis of respiratory viral infections, and in vitro studies using murine cells provide mechanistic insight into the pathogenesis observed in vivo. We used microarray analysis to compare changes in gene expression of murine lung epithelial cells infected individually by three respiratory viruses causing mild (rhinovirus, RV1B), moderate (coronavirus, MHV-1), and severe (influenza A virus, PR8) disease in mice. RV1B infection caused numerous gene expression changes, but the differential effect peaked at 12 hours post-infection. PR8 altered an intermediate number of genes whose expression continued to change through 24 hours. MHV-1 had comparatively few effects on host gene expression. The viruses elicited highly overlapping responses in antiviral genes, though MHV-1 induced a lower type I interferon response than the other two viruses. Signature genes were identified for each virus and included host defense genes for PR8, tissue remodeling genes for RV1B, and transcription factors for MHV-1. Our comparative approach identified universal and specific transcriptional signatures of virus infection that can be used to distinguish shared and virus-specific mechanisms of pathogenesis in the respiratory tract.
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Affiliation(s)
- James T. VanLeuven
- Center for Modeling Complex Interactions, University of Idaho, Moscow, Idaho, United States of America
| | - Benjamin J. Ridenhour
- Center for Modeling Complex Interactions, University of Idaho, Moscow, Idaho, United States of America
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America
| | - Andres J. Gonzalez
- Center for Modeling Complex Interactions, University of Idaho, Moscow, Idaho, United States of America
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America
| | - Craig R. Miller
- Center for Modeling Complex Interactions, University of Idaho, Moscow, Idaho, United States of America
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America
- Department of Mathematics, University of Idaho, Moscow, Idaho, United States of America
| | - Tanya A. Miura
- Center for Modeling Complex Interactions, University of Idaho, Moscow, Idaho, United States of America
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America
- * E-mail:
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41
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Taye B, Chen H, Myaing MZ, Tan BH, Maurer-Stroh S, Sugrue RJ. Systems-based approach to examine the cytokine responses in primary mouse lung macrophages infected with low pathogenic avian Influenza virus circulating in South East Asia. BMC Genomics 2017; 18:420. [PMID: 28558796 PMCID: PMC5450074 DOI: 10.1186/s12864-017-3803-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 05/17/2017] [Indexed: 02/08/2023] Open
Abstract
Background Influenza A virus (IAV) is a major public health concern, being responsible for the death of approximately half a million people each year. Zoonotic transmissions of the virus from swine and avian origin have occurred in the past, and can potentially lead to the emgergence of new IAV stains in future pandemics. Pulmonary macrophages have been implicated in disease severity in the lower airway, and understanding the host response of macrophages infected with avian influenza viruses should provide new therapeutic strategies. Results We used a systems-based approach to investigate the transcriptome response of primary murine lung macrophages (PMФ) infected with the mouse-adapted H1N1/WSN virus and low pathogenic avian influenza (LPAI) viruses H5N2 and H5N3. The results showed that the LPAI viruses H5N2 and H5N3 can infect PMФ with similar efficiency to the H1N1/WSN virus. While all viruses induced antiviral responses, the H5N3 virus infection resulted in higher expression levels of cytokines and chemokines associated with inflammatory responses. Conclusions The LPAI H5N2 and H5N3 viruses are able to infect murine lung macrophages. However, the H5N3 virus was associated with increased expression of pro-inflammatory mediators. Although the H5N3 virus it is capable of inducing high levels of cytokines that are associated with inflammation, this property is distinct from its inability to efficiently replicate in a mammalian host. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3803-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Biruhalem Taye
- Bioinformatics Institute, A*STAR, 30 Biopolis Street #07-01, Matrix, Singapore, 138671, Republic of Singapore.,School of Biological Science, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore.,Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, P.O.BOX 1176, Ethiopia
| | - Hui Chen
- School of Biological Science, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore.,Current address Genome Institute of Singapore, A*STAR, 60 Biopolis Street, #02-01, Genome, Singapore, 138672, Republic of Singapore
| | - Myint Zu Myaing
- School of Biological Science, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore
| | - Boon Huan Tan
- Detection and Diagnostics Laboratory, Defence Science Organisation National Laboratories, 27 Medical Drive, Singapore, 117510, Republic of Singapore.,LKC School of Medicine, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Republic of Singapore
| | - Sebastian Maurer-Stroh
- Bioinformatics Institute, A*STAR, 30 Biopolis Street #07-01, Matrix, Singapore, 138671, Republic of Singapore.,National Public Health Laboratory, Ministry of Health, Singapore, Republic of Singapore.,Department of Biological Sciences, National University of Singapore, 8 Medical Drive, Singapore, 117597, Republic of Singapore
| | - Richard J Sugrue
- School of Biological Science, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore.
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42
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Zhang H, Luo J, Alcorn JF, Chen K, Fan S, Pilewski J, Liu A, Chen W, Kolls JK, Wang J. AIM2 Inflammasome Is Critical for Influenza-Induced Lung Injury and Mortality. THE JOURNAL OF IMMUNOLOGY 2017; 198:4383-4393. [PMID: 28424239 PMCID: PMC5439025 DOI: 10.4049/jimmunol.1600714] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 03/24/2017] [Indexed: 11/19/2022]
Abstract
The absent in melanoma 2 (AIM2) inflammasome plays an important role in many viral and bacterial infections, but very little is known about its role in RNA virus infection, including influenza A virus (IAV). In this study, we have designed in vivo and in vitro studies to determine the role of AIM2 in infections with lethal doses of IAVs A/PR8/34 and A/California/07/09. In wild-type mice, IAV infection enhanced AIM2 expression, induced dsDNA release, and stimulated caspase-1 activation and release of cleaved IL-1β in the lung, which was significantly reduced in AIM2-deficient mice. Interestingly, AIM2 deficiency did not affect the transcription of caspase-1 and IL-1β. In addition, AIM2-deficient mice exhibited attenuated lung injury and significantly improved survival against IAV challenges, but did not alter viral burden in the lung. However, AIM2 deficiency did not seem to affect adaptive immune response against IAV infections. Furthermore, experiments with AIM2-specific small interfering RNA-treated and AIM2-deficient human and mouse lung alveolar macrophages and type II cells indicated a macrophage-specific function of AIM2 in regulation of IAV-stimulated proinflammatory response. Collectively, our results demonstrate that influenza infection activates the AIM2 inflammasome, which plays a critical role in IAV-induced lung injury and mortality. AIM2 might serve as a therapeutic target for combating influenza-associated morbidity and mortality without compromising the host antiviral responses.
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Affiliation(s)
- Hongbo Zhang
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224
| | - Jiadi Luo
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224.,Department of Pathology, Second Affiliated Xiangya Hospital, Central South University, Changsha 410078, China
| | - John F Alcorn
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224
| | - Kong Chen
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224
| | - Songqing Fan
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224.,Department of Pathology, Second Affiliated Xiangya Hospital, Central South University, Changsha 410078, China
| | - Joseph Pilewski
- Pulmonary, Allergy, and Critical Care Medicine Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224; and
| | - Aizhong Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Central South University, Changsha 410078, China
| | - Wei Chen
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224
| | - Jay K Kolls
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224
| | - Jieru Wang
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224;
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43
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LeMessurier KS, Lin Y, McCullers JA, Samarasinghe AE. Antimicrobial peptides alter early immune response to influenza A virus infection in C57BL/6 mice. Antiviral Res 2016; 133:208-17. [PMID: 27531368 DOI: 10.1016/j.antiviral.2016.08.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/12/2016] [Indexed: 02/07/2023]
Abstract
Influenza is a disease of the respiratory system caused by single stranded RNA viruses with varying genotypes. Immunopathogenesis to influenza viruses differs based on virus strain, dose, and mouse strain used in laboratory models. Although effective mucosal immune defenses are important in early host defense against influenza, information on the kinetics of these immune defense mechanisms during the course of influenza infection is limited. We investigated changes to antimicrobial peptides and primary innate immune cells at early time points after infection and compared these variables between two prominent H1N1 influenza A virus (IAV) strains, A/CA/04/2009 and A/PR/08/1934 in C57BL/6 mice. Alveolar and parenchymal macrophage ratios were altered after IAV infection and pro-inflammatory cytokine production in macrophages was induced after IAV infection. Genes encoding antimicrobial peptides, β-defensin (Defb4), bactericidal-permeability increasing protein (Bpifa1), and cathelicidin antimicrobial peptide (Camp), were differentially regulated after IAV infection and the kinetics of Defb4 expression differed in response to each virus strain. Beta-defensin reduced infectivity of A/CA/04/2009 virus but not A/PR/08/1934. Beta defensins also changed the innate immune cell profile wherein mice pre-treated with β-defensin had increased alveolar macrophages and CD103(+) dendritic cells, and reduced CD11b(+) dendritic cells and neutrophils. In addition to highlighting that immune responses may vary based on influenza virus strain used, our data suggest an important role for antimicrobial peptides in host defense against influenza virus.
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Affiliation(s)
- Kim S LeMessurier
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Yanyan Lin
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Jonathan A McCullers
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA; Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Amali E Samarasinghe
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA; Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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44
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Maelfait J, Roose K, Vereecke L, Mc Guire C, Sze M, Schuijs MJ, Willart M, Ibañez LI, Hammad H, Lambrecht BN, Beyaert R, Saelens X, van Loo G. A20 Deficiency in Lung Epithelial Cells Protects against Influenza A Virus Infection. PLoS Pathog 2016; 12:e1005410. [PMID: 26815999 PMCID: PMC4731390 DOI: 10.1371/journal.ppat.1005410] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 12/31/2015] [Indexed: 12/24/2022] Open
Abstract
A20 negatively regulates multiple inflammatory signalling pathways. We here addressed the role of A20 in club cells (also known as Clara cells) of the bronchial epithelium in their response to influenza A virus infection. Club cells provide a niche for influenza virus replication, but little is known about the functions of these cells in antiviral immunity. Using airway epithelial cell-specific A20 knockout (A20AEC-KO) mice, we show that A20 in club cells critically controls innate immune responses upon TNF or double stranded RNA stimulation. Surprisingly, A20AEC-KO mice are better protected against influenza A virus challenge than their wild type littermates. This phenotype is not due to decreased viral replication. Instead host innate and adaptive immune responses and lung damage are reduced in A20AEC-KO mice. These attenuated responses correlate with a dampened cytotoxic T cell (CTL) response at later stages during infection, indicating that A20AEC-KO mice are better equipped to tolerate Influenza A virus infection. Expression of the chemokine CCL2 (also named MCP-1) is particularly suppressed in the lungs of A20AEC-KO mice during later stages of infection. When A20AEC-KO mice were treated with recombinant CCL2 the protective effect was abrogated demonstrating the crucial contribution of this chemokine to the protection of A20AEC-KO mice to Influenza A virus infection. Taken together, we propose a mechanism of action by which A20 expression in club cells controls inflammation and antiviral CTL responses in response to influenza virus infection. Influenza viruses are a major public health threat. Each year, the typical seasonal flu epidemic affects millions of people with sometimes fatal outcomes, especially in high risk groups such as young children and elderly. The sporadic pandemic outbreaks can have even more disastrous consequences. The protein A20 is an important negative regulator of antiviral immune responses. We show that the specific deletion of A20 in bronchial epithelial cells improves the protection against influenza virus infections. This increased protection correlates with a dampened pulmonary cytotoxic T cell response and a strongly suppressed expression of the chemokine CCL2 during later stages of infection.
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Affiliation(s)
- Jonathan Maelfait
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kenny Roose
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Medical Biotechnology Center, VIB, Ghent, Belgium
| | - Lars Vereecke
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Conor Mc Guire
- Medical Biotechnology Center, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Mozes Sze
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Martijn J Schuijs
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Respiratory Medicine, Ghent University, Ghent, Belgium
| | - Monique Willart
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Respiratory Medicine, Ghent University, Ghent, Belgium
| | - Lorena Itati Ibañez
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Medical Biotechnology Center, VIB, Ghent, Belgium
| | - Hamida Hammad
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Respiratory Medicine, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Respiratory Medicine, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Xavier Saelens
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Medical Biotechnology Center, VIB, Ghent, Belgium
| | - Geert van Loo
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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45
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Characterization of the Localized Immune Response in the Respiratory Tract of Ferrets following Infection with Influenza A and B Viruses. J Virol 2015; 90:2838-48. [PMID: 26719259 DOI: 10.1128/jvi.02797-15] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 12/20/2015] [Indexed: 01/09/2023] Open
Abstract
UNLABELLED The burden of infection with seasonal influenza viruses is significant. Each year is typically characterized by the dominance of one (sub)type or lineage of influenza A or B virus, respectively. The incidence of disease varies annually, and while this may be attributed to a particular virus strain or subtype, the impacts of prior immunity, population differences, and variations in clinical assessment are also important. To improve our understanding of the impacts of seasonal influenza viruses, we directly compared clinical symptoms, virus shedding, and expression of cytokines, chemokines, and immune mediators in the upper respiratory tract (URT) of ferrets infected with contemporary A(H1N1)pdm09, A(H3N2), or influenza B virus. Gene expression in the lower respiratory tract (LRT) was also assessed. Clinical symptoms were minimal. Overall cytokine/chemokine profiles in the URT were consistent in pattern and magnitude between animals infected with influenza A and B viruses, and peak expression levels of interleukin-1α (IL-1α), IL-1β, IL-6, IL-12p40, alpha interferon (IFN-α), IFN-β, and tumor necrosis factor alpha (TNF-α) mRNAs correlated with peak levels of viral shedding. MCP1 and IFN-γ were expressed after the virus peak. Granzymes A and B and IL-10 reached peak expression as the virus was cleared and seroconversion was detected. Cytokine/chemokine gene expression in the LRT following A(H1N1)pdm09 virus infection reflected the observations seen for the URT but was delayed 2 or 3 days, as was virus replication. These data indicate that disease severities and localized immune responses following infection with seasonal influenza A and B viruses are similar, suggesting that other factors are likely to modulate the incidence and impact of seasonal influenza. IMPORTANCE Both influenza A and B viruses cocirculate in the human population, and annual influenza seasons are typically dominated by an influenza A virus subtype or an influenza B virus lineage. Surveillance data indicate that the burden of disease is higher in some seasons, yet it is unclear whether this is due to specific virus strains or to other factors, such as cross-reactive immunity or clinical definitions of influenza. We directly compared disease severities and localized inflammatory responses to different seasonal influenza virus strains, including the 2009 pandemic strain, in healthy naive ferrets. We found that the disease severities and the cytokine and chemokine responses were similar irrespective of the seasonal strain or the location of the infection in the respiratory tract. This suggests that factors other than the immune response to a particular virus (sub)type contribute to the variable impact of influenza virus infection in a population.
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46
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Londrigan SL, Tate MD, Job ER, Moffat JM, Wakim LM, Gonelli CA, Purcell DFJ, Brooks AG, Villadangos JA, Reading PC, Mintern JD. Endogenous Murine BST-2/Tetherin Is Not a Major Restriction Factor of Influenza A Virus Infection. PLoS One 2015; 10:e0142925. [PMID: 26566124 PMCID: PMC4643895 DOI: 10.1371/journal.pone.0142925] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 10/28/2015] [Indexed: 01/23/2023] Open
Abstract
BST-2 (tetherin, CD317, HM1.24) restricts virus growth by tethering enveloped viruses to the cell surface. The role of BST-2 during influenza A virus infection (IAV) is controversial. Here, we assessed the capacity of endogenous BST-2 to restrict IAV in primary murine cells. IAV infection increased BST-2 surface expression by primary macrophages, but not alveolar epithelial cells (AEC). BST-2-deficient AEC and macrophages displayed no difference in susceptibility to IAV infection relative to wild type cells. Furthermore, BST-2 played little role in infectious IAV release from either AEC or macrophages. To examine BST-2 during IAV infection in vivo, we infected BST-2-deficient mice. No difference in weight loss or in viral loads in the lungs and/or nasal tissues were detected between BST-2-deficient and wild type animals. This study rules out a major role for endogenous BST-2 in modulating IAV in the mouse model of infection.
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Affiliation(s)
- Sarah L. Londrigan
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Michelle D. Tate
- Centre for Innate Immunity and Infectious Diseases, MIMR-PHI Institute of Medical Research, Clayton, Victoria, 3168, Australia
- Monash University, Clayton, Victoria, 3168, Australia
| | - Emma R. Job
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jessica M. Moffat
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Linda M. Wakim
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Christopher A. Gonelli
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Damien F. J. Purcell
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Andrew G. Brooks
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jose A. Villadangos
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria, 3010, Australia
| | - Patrick C. Reading
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria, 3010, Australia
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Justine D. Mintern
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria, 3010, Australia
- * E-mail:
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47
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Ivanova PT, Myers DS, Milne SB, McClaren JL, Thomas PG, Brown HA. Lipid composition of viral envelope of three strains of influenza virus - not all viruses are created equal. ACS Infect Dis 2015; 1:399-452. [PMID: 26448476 DOI: 10.1021/acsinfecdis.5b00040] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
While differences in the rate of virus fusion and budding from the host cell membrane have been correlated with pathogenicity, no systematic study of the contribution of differences in viral envelope composition has previously been attempted. Using rigorous virus purification, marked differences between virions and host were observed. Over 125 phospholipid species have been quantitated for three strains of influenza (HKx31- H3N2, PR8- H1N1, and VN1203- H5N1) grown in eggs. The glycerophospholipid composition of purified virions differs from that of the host or that of typical mammalian cells. Phosphatidylcholine is the major component in most mammalian cell membranes, while in purified virions phosphatidylethanolamine dominates. Due to its effects on membrane curvature, it is likely that the variations in its content are important to viral processing during infection. This integrated method of virion isolation with systematic analysis of glycerophospholipids provides a tool for the assessment of species specific biomarkers of viral pathogenicity.
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Affiliation(s)
- Pavlina T. Ivanova
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-6600, United States
| | - David S. Myers
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-6600, United States
| | - Stephen B. Milne
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-6600, United States
| | - Jennifer L. McClaren
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105-3678, United States
| | - Paul G. Thomas
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105-3678, United States
| | - H. Alex Brown
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-6600, United States
- Department of Biochemistry, The Vanderbilt
Institute of Chemical Biology, The Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232-6600, United States
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48
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Campbell GM, Nicol MQ, Dransfield I, Shaw DJ, Nash AA, Dutia BM. Susceptibility of bone marrow-derived macrophages to influenza virus infection is dependent on macrophage phenotype. J Gen Virol 2015; 96:2951-2960. [PMID: 26297234 DOI: 10.1099/jgv.0.000240] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The role of the macrophage in influenza virus infection is complex. Macrophages are critical for resolution of influenza virus infections but implicated in morbidity and mortality in severe infections. They can be infected with influenza virus and consequently macrophage infection is likely to have an impact on the host immune response. Macrophages display a range of functional phenotypes, from the prototypical pro-inflammatory classically activated cell to alternatively activated anti-inflammatory macrophages involved in immune regulation and wound healing. We were interested in how macrophages of different phenotype respond to influenza virus infection and therefore studied the infection of bone marrow-derived macrophages (BMDMs) of classical and alternative phenotype in vitro. Our results show that alternatively activated macrophages are more readily infected and killed by the virus than classically activated. Classically activated BMDMs express the pro-inflammatory markers inducible nitric oxide synthase (iNOS) and TNF-α, and TNF-α expression was further upregulated following infection. Alternatively activated macrophages express Arginase-1 and CD206; however, following infection, expression of these markers was downregulated whilst expression of iNOS and TNF-α was upregulated. Thus, infection can override the anti-inflammatory state of alternatively activated macrophages. Importantly, however, this results in lower levels of pro-inflammatory markers than those produced by classically activated cells. Our results showed that macrophage phenotype affects the inflammatory macrophage response following infection, and indicated that modulating the macrophage phenotype may provide a route to develop novel strategies to prevent and treat influenza virus infection.
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Affiliation(s)
- Gillian M Campbell
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh EH25 9RG, UK
| | - Marlynne Q Nicol
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh EH25 9RG, UK
| | - Ian Dransfield
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TL, UK
| | - Darren J Shaw
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh EH25 9RG, UK
| | - Anthony A Nash
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh EH25 9RG, UK
| | - Bernadette M Dutia
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh EH25 9RG, UK
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49
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Huang MT, Chen ST, Wu HY, Chen YJ, Chou TY, Hsieh SL. DcR3 suppresses influenza virus-induced macrophage activation and attenuates pulmonary inflammation and lethality. J Mol Med (Berl) 2015; 93:1131-43. [PMID: 25940317 DOI: 10.1007/s00109-015-1291-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 04/19/2015] [Accepted: 04/24/2015] [Indexed: 12/28/2022]
Abstract
UNLABELLED Influenza A virus (IAV) infects macrophages and stimulates innate immunity receptors and sensors to produce proinflammatory cytokines and chemokines, which are responsible for IAV-induced pulmonary inflammation and injury. Decoy receptor 3 (DcR3) is a soluble protein belonging to the tumor necrosis factor receptor superfamily (TNFRSF), and is able to skew macrophage differentiation into an M2 phenotype. We demonstrated that DcR3 attenuated IAV-induced secretion of proinflammatory cytokines and chemokine from macrophages, and mitigated pulmonary infiltration and reduce lethality. Proteome-wide phosphoproteomic mapping revealed that DcR3 not only activated STK10, a negative regulator of cell migration, but also inactivated PKC-α, which are crucial for the activation of ERK and JNK in human macrophages. Furthermore, less pulmonary infiltration with lower levels of proinflammatory cytokines and chemokine in bronchoalveolar lavage fluid (BALF) were observed in DcR3-transgenic mice. Moreover, recombinant DcR3.Fc and heparan sulfate proteoglycan binding domain of DcR3.Fc (HBD.Fc) fusion proteins attenuated weight loss and protected mice from IAV-induced lethality. Thus, DcR3-mediated protection is not only via suppression of proinflammatory cytokine and chemokine release, but also via activation of STK10 to inhibit cell infiltration. DcR3 fusion proteins may become therapeutic agents to protect host from IAV-induced lethality in the future. KEY MESSAGE • DcR3 suppresses IAV-induced cytokine secretion.• DcR3 inhibits IAV-induced JNK and ERK activation in human macrophages.• DcR3 downregulates TLR3 and 7 expressions in human macrophages.• DcR3 protects mice from IAV-induced lethality.
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Affiliation(s)
- Ming-Ting Huang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Szu-Ting Chen
- Department of Microbiology and Immunology, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsin-Yi Wu
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
| | - Yu-Ju Chen
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan
| | - Teh-Ying Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shie-Liang Hsieh
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan.
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
- Genomics Research Center, Academia Sinica, 128, Academia Road, Sec. 2, Nankang District, Taipei, 115, Taiwan.
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.
- Institute for Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan.
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50
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Glucocorticosteroids enhance replication of respiratory viruses: effect of adjuvant interferon. Sci Rep 2014; 4:7176. [PMID: 25417801 PMCID: PMC5384105 DOI: 10.1038/srep07176] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 11/05/2014] [Indexed: 01/13/2023] Open
Abstract
Glucocorticosteroids (GCS) are used on a daily basis to reduce airway inflammation in asthma and chronic obstructive pulmonary disease (COPD). This treatment is usually escalated during acute disease exacerbations, events often associated with virus infections. We examined the impact of GCS on anti-viral defences and virus replication and assessed supplementary interferon (IFN) treatment. Here, we report that treatment of primary human airway cells in vitro with GCS prior to rhinovirus (RV) or influenza A virus (IAV) infection significantly reduces the expression of innate anti-viral genes and increases viral replication. Mice given intranasal treatment with GCS prior to IAV infection developed more severe disease associated with amplified virus replication and elevated inflammation in the airways. Adjuvant IFN treatment markedly reduced GCS-amplified infections in human airway cells and in mouse lung. This study demonstrates that GCS cause an extrinsic compromise in anti-viral defences, enhancing respiratory virus infections and provides a rationale for adjuvant IFN treatment.
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