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Regis E, Fontanella S, Curtin JA, Pinot de Moira A, Edwards MR, Murray CS, Simpson A, Johnston SL, Custovic A. Association between polymorphisms on chromosome 17q12-q21 and rhinovirus-induced interferon responses. J Allergy Clin Immunol 2024; 154:308-315. [PMID: 38494094 DOI: 10.1016/j.jaci.2024.03.005] [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: 08/09/2023] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND Single nucleotide polymorphisms (SNPs) in genes on chromosome 17q12-q21 are associated with childhood-onset asthma and rhinovirus-induced wheeze. There are few mechanistic data linking chromosome 17q12-q21 to wheezing illness. OBJECTIVE We investigated whether 17q12-q21 risk alleles were associated with impaired interferon responses to rhinovirus. METHODS In a population-based birth cohort of European ancestry, we stimulated peripheral blood mononuclear cells with rhinovirus A1 (RV-A1) and rhinovirus A16 (RV-A16) and measured IFN and IFN-induced C-X-C motif chemokine ligand 10 (aka IP10) responses in supernatants. We investigated associations between virus-induced cytokines and 6 SNPs in 17q12-q21. Bayesian profile regression was applied to identify clusters of individuals with different immune response profiles and genetic variants. RESULTS Five SNPs (in high linkage disequilibrium, r2 ≥ 0.8) were significantly associated with RV-A1-induced IFN-β (rs9303277, P = .010; rs11557467, P = .012; rs2290400, P = .006; rs7216389, P = .008; rs8079416, P = .005). A reduction in RV-A1-induced IFN-β was observed among individuals with asthma risk alleles. There were no significant associations for RV-A1-induced IFN-α or CXCL10, or for any RV-A16-induced IFN/CXCL10. Bayesian profile regression analysis identified 3 clusters that differed in IFN-β induction to RV-A1 (low, medium, high). The typical genetic profile of the cluster associated with low RV-A1-induced IFN-β responses was characterized by a very high probability of being homozygous for the asthma risk allele for all SNPs. Children with persistent wheeze were almost 3 times more likely to be in clusters with reduced/average RV-A1-induced IFN-β responses than in the high immune response cluster. CONCLUSIONS Polymorphisms on chromosome 17q12-q21 are associated with rhinovirus-induced IFN-β, suggesting a novel mechanism-impaired IFN-β induction-links 17q12-q21 risk alleles with asthma/wheeze.
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Affiliation(s)
- Eteri Regis
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sara Fontanella
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - John A Curtin
- Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | | | - Michael R Edwards
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Clare S Murray
- Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, Faculty of Biology, Medicine and Health, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | - Sebastian L Johnston
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, United Kingdom.
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Burgess MO, Janas P, Berry K, Mayr H, Mack M, Jenkins SJ, Bain CC, McSorley HJ, Schwarze J. Helminth induced monocytosis conveys protection from respiratory syncytial virus infection in mice. Allergy 2024. [PMID: 38924546 DOI: 10.1111/all.16206] [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: 05/10/2023] [Revised: 04/17/2024] [Accepted: 05/08/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) infection in infants is a major cause of viral bronchiolitis and hospitalisation. We have previously shown in a murine model that ongoing infection with the gut helminth Heligmosomoides polygyrus protects against RSV infection through type I interferon (IFN-I) dependent reduction of viral load. Yet, the cellular basis for this protection has remained elusive. Given that recruitment of mononuclear phagocytes to the lung is critical for early RSV infection control, we assessed their role in this coinfection model. METHODS Mice were infected by oral gavage with H. polygyrus. Myeloid immune cell populations were assessed by flow cytometry in lung, blood and bone marrow throughout infection and after secondary infection with RSV. Monocyte numbers were depleted by anti-CCR2 antibody or increased by intravenous transfer of enriched monocytes. RESULTS H. polygyrus infection induces bone marrow monopoiesis, increasing circulatory monocytes and lung mononuclear phagocytes in a IFN-I signalling dependent manner. This expansion causes enhanced lung mononuclear phagocyte counts early in RSV infection that may contribute to the reduction of RSV load. Depletion or supplementation of circulatory monocytes prior to RSV infection confirms that these are both necessary and sufficient for helminth induced antiviral protection. CONCLUSIONS H. polygyrus infection induces systemic monocytosis contributing to elevated mononuclear phagocyte numbers in the lung. These cells are central to an anti-viral effect that reduces the peak viral load in RSV infection. Treatments to promote or modulate these cells may provide novel paths to control RSV infection in high risk individuals.
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Affiliation(s)
- Matthew O Burgess
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Piotr Janas
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Karla Berry
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Hannah Mayr
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Stephen J Jenkins
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Calum C Bain
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Henry J McSorley
- Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Jurgen Schwarze
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
- Child Life and Health, Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
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Gambadauro A, Galletta F, Li Pomi A, Manti S, Piedimonte G. Immune Response to Respiratory Viral Infections. Int J Mol Sci 2024; 25:6178. [PMID: 38892370 PMCID: PMC11172738 DOI: 10.3390/ijms25116178] [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: 05/07/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
The respiratory system is constantly exposed to viral infections that are responsible for mild to severe diseases. In this narrative review, we focalized the attention on respiratory syncytial virus (RSV), influenza virus, and severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infections, responsible for high morbidity and mortality in the last decades. We reviewed the human innate and adaptive immune responses in the airways following infection, focusing on a particular population: newborns and pregnant women. The recent Coronavirus disease-2019 (COVID-19) pandemic has highlighted how our interest in viral pathologies must not decrease. Furthermore, we must increase our knowledge of infection mechanisms to improve our future defense strategies.
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Affiliation(s)
- Antonella Gambadauro
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy; (A.G.); (F.G.); (A.L.P.)
| | - Francesca Galletta
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy; (A.G.); (F.G.); (A.L.P.)
| | - Alessandra Li Pomi
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy; (A.G.); (F.G.); (A.L.P.)
| | - Sara Manti
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy; (A.G.); (F.G.); (A.L.P.)
| | - Giovanni Piedimonte
- Office for Research and Departments of Pediatrics, Biochemistry, and Molecular Biology, Tulane University, New Orleans, LA 70112, USA;
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Liu Y, Zhang J, Leng G, Hu J, Wang W, Deng G, Ma Y, Sha S. Mycobacterium tuberculosis Rv1987 protein attenuates inflammatory response and consequently alters microbiota in mouse lung. Front Cell Infect Microbiol 2023; 13:1256866. [PMID: 38029253 PMCID: PMC10646435 DOI: 10.3389/fcimb.2023.1256866] [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: 07/11/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Healthy lung microbiota plays an important role in preventing Mycobacterium tuberculosis (Mtb) infections by activating immune cells and stimulating production of T-helper cell type 1 cytokines. The dynamic stability of lung microbiota relies mostly on lung homeostasis. In our previous studies, we found that Mtb virulence factor, Rv1987 protein, can mediate host immune response and enhance mycobacterial survival in host lung. However, the alteration of lung microbiota and the contribution of lung microbiota dysbiosis to mycobacterial evasion in this process are not clear so far. Methods M. smegmatis which does not contain the ortholog of Rv1987 protein was selected as a model strain to study the effects of Rv1987 on host lung microbiota. The lung microbiota, immune state and metabolites of mice infected by M. smegmatis overexpressing Rv1987 protein (MS1987) were detected and analyzed. Results The results showed that Rv1987 inhibited inflammatory response in mouse lung and anaerobic bacteria and Proteobacteria, Bacteroidota, Actinobacteriota and Acidobacteriota bacteria were enriched in the lung tissues correspondingly. The immune alterations and microbiota dysbiosis affected host metabolic profiles, and some of significantly altered bacteria in MS1987-infected mouse lung, such as Delftia acidovorans, Ralstonia pickettii and Escherichia coli, led to anti-inflammatory responses in mouse lung. The secretory metabolites of these altered bacteria also influenced mycobacterial growth and biofilm formation directly. Conclusion All these results suggested that Rv1987 can attenuate inflammatory response and alter microbiota in the lung, which in turn facilitates mycobacterial survival in the host.
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Affiliation(s)
- Yingying Liu
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
| | - Jiaqi Zhang
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
| | - Guangxian Leng
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
| | - Junxing Hu
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
| | - Wenzhen Wang
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
| | - Guoying Deng
- Department of Microbiology, Dalian Medical University, Dalian, Liaoning, China
| | - Yufang Ma
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
- Department of Microbiology, Dalian Medical University, Dalian, Liaoning, China
| | - Shanshan Sha
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, Liaoning, China
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5
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Antos D, Alcorn JF. IFNλ: balancing the light and dark side in pulmonary infection. mBio 2023; 14:e0285022. [PMID: 37278532 PMCID: PMC10470512 DOI: 10.1128/mbio.02850-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/10/2023] [Indexed: 06/07/2023] Open
Abstract
Interferon (IFN) represents a well-known component of antiviral immunity that has been studied extensively for its mechanisms of action and therapeutic potential when antiviral treatment options are limited. Specifically in the respiratory tract, IFNs are induced directly on viral recognition to limit the spread and transmission of the virus. Recent focus has been on the IFNλ family, which has become an exciting focus in recent years for its potent antiviral and anti-inflammatory activities against viruses infecting barrier sites, including the respiratory tract. However, insights into the interplay between IFNλs and other pulmonary infections are more limited and suggest a more complex role, potentially detrimental, than what was seen during viral infections. Here, we review the role of IFNλs in pulmonary infections, including viral, bacterial, fungal, and multi-pathogen super-infections, and how this may impact future work in the field.
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Affiliation(s)
- Danielle Antos
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John F. Alcorn
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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6
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Dalskov L, Gad HH, Hartmann R. Viral recognition and the antiviral interferon response. EMBO J 2023:e112907. [PMID: 37367474 DOI: 10.15252/embj.2022112907] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/08/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
Interferons (IFNs) are antiviral cytokines that play a key role in the innate immune response to viral infections. In response to viral stimuli, cells produce and release interferons, which then act on neighboring cells to induce the transcription of hundreds of genes. Many of these gene products either combat the viral infection directly, e.g., by interfering with viral replication, or help shape the following immune response. Here, we review how viral recognition leads to the production of different types of IFNs and how this production differs in spatial and temporal manners. We then continue to describe how these IFNs play different roles in the ensuing immune response depending on when and where they are produced or act during an infection.
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Affiliation(s)
- Louise Dalskov
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Hans Henrik Gad
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Rune Hartmann
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
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7
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Martínez-Espinoza I, Guerrero-Plata A. Current Landscape of IFN-λ: Induction, Inhibition, and Potential Clinical Applications to Treat Respiratory Viral Infections. Immunohorizons 2023; 7:265-272. [PMID: 37071039 PMCID: PMC10579847 DOI: 10.4049/immunohorizons.2200010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/23/2023] [Indexed: 04/19/2023] Open
Abstract
IFN-λ or type III IFN is an important mediator of antiviral response. Several respiratory viruses induce the production of IFN-λ during their course of infection. However, they have also developed intricate mechanisms to inhibit its expression and activity. Despite a considerable amount of research on the regulatory mechanisms of respiratory viruses on the IFN-λ response, little is still known about the effect of this cytokine on immune cells and the antiviral effects of all IFN-λ isoforms, and a better understanding of the detrimental effects of IFN-λ treatment is required. Here we highlight the relevance of IFN-λ as an antiviral cytokine in the respiratory tract. Data from studies in vitro, ex vivo, experimental animal models, and ongoing clinical trials emphasize the therapeutic opportunity that IFN-λ represents to treat and prevent different types of respiratory viral infections.
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Affiliation(s)
- Iván Martínez-Espinoza
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
| | - Antonieta Guerrero-Plata
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
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8
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Influenza Virus Infection during Pregnancy as a Trigger of Acute and Chronic Complications. Viruses 2022; 14:v14122729. [PMID: 36560733 PMCID: PMC9786233 DOI: 10.3390/v14122729] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/18/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022] Open
Abstract
Influenza A virus (IAV) infection during pregnancy disrupts maternal and fetal health through biological mechanisms, which are to date poorly characterised. During pregnancy, the viral clearance mechanisms from the lung are sub-optimal and involve hyperactive innate and adaptive immune responses that generate wide-spread inflammation. Pregnancy-related adaptations of the immune and the cardiovascular systems appear to result in delayed recovery post-viral infection, which in turn promotes a prolonged inflammatory phenotype, increasing disease severity, and causing maternal and fetal health problems. This has immediate and long-term consequences for the mother and fetus, with complications including acute cardiopulmonary distress syndrome in the mother that lead to perinatal complications such as intrauterine growth restriction (IUGR), and birth defects; cleft lip, cleft palate, neural tube defects and congenital heart defects. In addition, an increased risk of long-term neurological disorders including schizophrenia in the offspring is reported. In this review we discuss the pathophysiology of IAV infection during pregnancy and its striking similarity to other well-established complications of pregnancy such as preeclampsia. We discuss general features of vascular disease with a focus on vascular inflammation and define the "Vascular Storm" that is triggered by influenza infection during pregnancy, as a pivotal disease mechanism for short and long term cardiovascular complications.
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Belyakov NA, Boeva EV, Simakina OE, Danilenko DM, Lioznov DA. EPIDEMIOLOGY AND COURSE OF INFECTIOUS DISEASES DURING THE COVID-19 PANDEMIC. REPORT 2: REALIZATION OF INTERFERENCE BETWEEN SARS-COV-2 AND ACUTE RESPIRATORY VIRAL INFECTIONS. RUSSIAN JOURNAL OF INFECTION AND IMMUNITY 2022. [DOI: 10.15789/2220-7619-eac-1960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The analytical review, based on the analysis of literature and own materials, outlines the features of the interaction of a new coronavirus infection (COVID-19) and acute respiratory diseases. Particular attention is paid to the combined course of SARS-CoV-2 and the influenza virus, a comparative characteristic of the severity of the clinical picture. An assessment of the epidemic situation against the background of the COVID-19 pandemic in foreign countries and the Russian Federation made it possible to establish the presence of the phenomenon of SARS-CoV-2 interference with other viral respiratory agents, based on the facts of a sharp suppression of the circulation of influenza viruses, respiratory syncytial virus (RSV) and other pathogens of acute respiratory viral infections (ARVI) during the period of active spread of pandemic coronavirus. The results obtained confirm the need to ensure effective surveillance and additional diagnostic capabilities for monitoring SARS, which can significantly affect the decision-making on appropriate preventive measures and clinical management of relevant diseases.
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10
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Li Q, Tan F, Wang Y, Liu X, Kong X, Meng J, Yang L, Cen S. The gamble between oncolytic virus therapy and IFN. Front Immunol 2022; 13:971674. [PMID: 36090998 PMCID: PMC9453641 DOI: 10.3389/fimmu.2022.971674] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Various studies are being conducted on oncolytic virotherapy which one of the mechanisms is mediating interferon (IFN) production by it exerts antitumor effects. The antiviral effect of IFN itself has a negative impact on the inhibition of oncolytic virus or tumor eradication. Therefore, it is very critical to understand the mechanism of IFN regulation by oncolytic viruses, and to define its mechanism is of great significance for improving the antitumor effect of oncolytic viruses. This review focuses on the regulatory mechanisms of IFNs by various oncolytic viruses and their combination therapies. In addition, the exerting and the producing pathways of IFNs are briefly summarized, and some current issues are put forward.
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Affiliation(s)
- Qingbo Li
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fengxian Tan
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuanyuan Wang
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaohui Liu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xianbin Kong
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Xianbin Kong, ; Jingyan Meng, ; Long Yang, ; Shan Cen,
| | - Jingyan Meng
- College of Traditional Chinese medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Xianbin Kong, ; Jingyan Meng, ; Long Yang, ; Shan Cen,
| | - Long Yang
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Xianbin Kong, ; Jingyan Meng, ; Long Yang, ; Shan Cen,
| | - Shan Cen
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science, Beijing, China
- *Correspondence: Xianbin Kong, ; Jingyan Meng, ; Long Yang, ; Shan Cen,
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A systems immunology approach to investigate cytokine responses to viruses and bacteria and their association with disease. Sci Rep 2022; 12:13463. [PMID: 35931775 PMCID: PMC9356009 DOI: 10.1038/s41598-022-16509-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 07/11/2022] [Indexed: 11/08/2022] Open
Abstract
Patterns of human immune responses to viruses and bacteria and how this impacts risk of infections or onset/exacerbation of chronic respiratory diseases are poorly understood. In a population-based birth cohort, we measured peripheral blood mononuclear cell responses (28 cytokines) to respiratory viruses and bacteria, Toll-like receptor ligands and phytohemagglutinin, in 307 children. Cytokine responses were highly variable with > 1000-fold differences between children. Machine learning revealed clear distinction between virus-associated and bacteria-associated stimuli. Cytokines clustered into three functional groups (anti-viral, pro-inflammatory and T-cell derived). To investigate mechanisms potentially explaining such variable responses, we investigated cytokine Quantitative Trait Loci (cQTLs) of IL-6 responses to bacteria and identified nine (eight novel) loci. Our integrative approach describing stimuli, cytokines and children as variables revealed robust immunologically and microbiologically plausible clustering, providing a framework for a greater understanding of host-responses to infection, including novel genetic associations with respiratory disease.
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12
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To EE, Erlich JR, Liong F, Liong S, Luong R, Oseghale O, Miles MA, Papagianis PC, Quinn KM, Bozinovski S, Vlahos R, Brooks RD, O’Leary JJ, Brooks DA, Selemidis S. Therapeutic Targeting of Endosome and Mitochondrial Reactive Oxygen Species Protects Mice From Influenza Virus Morbidity. Front Pharmacol 2022; 13:870156. [PMID: 35401240 PMCID: PMC8984148 DOI: 10.3389/fphar.2022.870156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/02/2022] [Indexed: 11/29/2022] Open
Abstract
There is an urgent need to develop effective therapeutic strategies including immunomodulators to combat influenza A virus (IAV) infection. Influenza A viruses increase ROS production, which suppress anti-viral responses and contribute to pathological inflammation and morbidity. Two major cellular sites of ROS production are endosomes via the NOX2-oxidase enzyme and the electron transport chain in mitochondria. Here we examined the effect of administration of Cgp91ds-TAT, an endosome-targeted NOX2 oxidase inhibitor, in combination with mitoTEMPO, a mitochondrial ROS scavenger and compared it to monotherapy treatment during an established IAV infection. Mice were infected with IAV (Hkx31 strain; 104PFU/mouse) and 24 h post infection were treated with Cgp91ds-TAT (0.2 mg/kg), mitoTEMPO (100 μg) or with a combination of these inhibitors [Cgp91ds-TAT (0.2 mg/kg)/mitoTEMPO (100 μg)] intranasally every day for up to 2 days post infection (pi). Mice were euthanized on Days 3 or 6 post infection for analyses of disease severity. A combination of Cgp91ds-TAT and mitoTEMPO treatment was more effective than the ROS inhibitors alone at reducing airway and neutrophilic inflammation, bodyweight loss, lung oedema and improved the lung pathology with a reduction in alveolitis following IAV infection. Dual ROS inhibition also caused a significant elevation in Type I IFN expression at the early phase of infection (day 3 pi), however, this response was suppressed at the later phase of infection (day 6 pi). Furthermore, combined treatment with Cgp91ds-TAT and mitoTEMPO resulted in an increase in IAV-specific CD8+ T cells in the lungs. In conclusion, this study demonstrates that the reduction of ROS production in two major subcellular sites, i.e. endosomes and mitochondria, by intranasal delivery of a combination of Cgp91ds-TAT and mitoTEMPO, suppresses the severity of influenza infection and highlights a novel immunomodulatory approach for IAV disease management.
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Affiliation(s)
- Eunice E. To
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- F.M Kirby Neurobiology Centre, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Jonathan R. Erlich
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Felicia Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Stella Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Raymond Luong
- Department of Pharmacology, Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia
| | - Osezua Oseghale
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Mark A. Miles
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Paris C. Papagianis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Kylie M. Quinn
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Ross Vlahos
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Robert D. Brooks
- Cancer Research Institute and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - John J. O’Leary
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, Department of Histopathology Trinity College Dublin, Dublin, Ireland
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, Dublin, Ireland
| | - Doug A. Brooks
- Cancer Research Institute and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, Dublin, Ireland
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- *Correspondence: Stavros Selemidis,
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Manivasagam S, Williams JL, Vollmer LL, Bollman B, Bartleson JM, Ai S, Wu GF, Klein RS. Targeting IFN-λ Signaling Promotes Recovery from Central Nervous System Autoimmunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1341-1351. [PMID: 35181638 PMCID: PMC9012116 DOI: 10.4049/jimmunol.2101041] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Type III IFNs (IFNLs) are newly discovered cytokines, acting at epithelial and other barriers, that exert immunomodulatory functions in addition to their primary roles in antiviral defense. In this study, we define a role for IFNLs in maintaining autoreactive T cell effector function and limiting recovery in a murine model of multiple sclerosis (MS), experimental autoimmune encephalomyelitis. Genetic or Ab-based neutralization of the IFNL receptor (IFNLR) resulted in lack of disease maintenance during experimental autoimmune encephalomyelitis, with loss of CNS Th1 effector responses and limited axonal injury. Phenotypic effects of IFNLR signaling were traced to increased APC function, with associated increase in T cell production of IFN-γ and GM-CSF. Consistent with this, IFNL levels within lesions of CNS tissues derived from patients with MS were elevated compared with MS normal-appearing white matter. Furthermore, expression of IFNLR was selectively elevated in MS active lesions compared with inactive lesions or normal-appearing white matter. These findings suggest IFNL signaling as a potential therapeutic target to prevent chronic autoimmune neuroinflammation.
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Affiliation(s)
- Sindhu Manivasagam
- Department of Medicine, Washington University in St. Louis, St. Louis, MO
| | | | - Lauren L Vollmer
- Department of Medicine, Washington University in St. Louis, St. Louis, MO
| | - Bryan Bollman
- Department of Neurology, Washington University in St. Louis, St. Louis, MO; and
| | - Juliet M Bartleson
- Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, MO
| | - Shenjian Ai
- Department of Medicine, Washington University in St. Louis, St. Louis, MO
| | - Gregory F Wu
- Department of Neurology, Washington University in St. Louis, St. Louis, MO; and
- Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, MO
| | - Robyn S Klein
- Department of Medicine, Washington University in St. Louis, St. Louis, MO;
- Department of Neurology, Washington University in St. Louis, St. Louis, MO; and
- Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, MO
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14
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Guo-Parke H, Linden D, Weldon S, Kidney JC, Taggart CC. Deciphering Respiratory-Virus-Associated Interferon Signaling in COPD Airway Epithelium. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:121. [PMID: 35056429 PMCID: PMC8781535 DOI: 10.3390/medicina58010121] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/08/2022] [Accepted: 01/11/2022] [Indexed: 01/08/2023]
Abstract
COPD is a chronic lung disorder characterized by a progressive and irreversible airflow obstruction, and persistent pulmonary inflammation. It has become a global epidemic affecting 10% of the population, and is the third leading cause of death worldwide. Respiratory viruses are a primary cause of COPD exacerbations, often leading to secondary bacterial infections in the lower respiratory tract. COPD patients are more susceptible to viral infections and associated severe disease, leading to accelerated lung function deterioration, hospitalization, and an increased risk of mortality. The airway epithelium plays an essential role in maintaining immune homeostasis, and orchestrates the innate and adaptive responses of the lung against inhaled and pathogen insults. A healthy airway epithelium acts as the first line of host defense by maintaining barrier integrity and the mucociliary escalator, secreting an array of inflammatory mediators, and initiating an antiviral state through the interferon (IFN) response. The airway epithelium is a major site of viral infection, and the interaction between respiratory viruses and airway epithelial cells activates host defense mechanisms, resulting in rapid virus clearance. As such, the production of IFNs and the activation of IFN signaling cascades directly contributes to host defense against viral infections and subsequent innate and adaptive immunity. However, the COPD airway epithelium exhibits an altered antiviral response, leading to enhanced susceptibility to severe disease and impaired IFN signaling. Despite decades of research, there is no effective antiviral therapy for COPD patients. Herein, we review current insights into understanding the mechanisms of viral evasion and host IFN antiviral defense signaling impairment in COPD airway epithelium. Understanding how antiviral mechanisms operate in COPD exacerbations will facilitate the discovery of potential therapeutic interventions to reduce COPD hospitalization and disease severity.
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Affiliation(s)
- Hong Guo-Parke
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast BT9 7AE, UK; (H.G.-P.); (D.L.); (S.W.)
| | - Dermot Linden
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast BT9 7AE, UK; (H.G.-P.); (D.L.); (S.W.)
| | - Sinéad Weldon
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast BT9 7AE, UK; (H.G.-P.); (D.L.); (S.W.)
| | - Joseph C. Kidney
- Department of Respiratory Medicine, Mater Hospital Belfast, Belfast BT14 6AB, UK;
| | - Clifford C. Taggart
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast BT9 7AE, UK; (H.G.-P.); (D.L.); (S.W.)
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15
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Huebner ST, Henny S, Giezendanner S, Brack T, Brutsche M, Chhajed P, Clarenbach C, Dieterle T, Egli A, Frey M, Heijnen I, Irani S, Sievi NA, Thurnheer R, Trendelenburg M, Kohler M, Leuppi-Taegtmeyer AB, Leuppi JD. Prediction of Acute COPD Exacerbation in the Swiss Multicenter COPD Cohort Study (TOPDOCS) by Clinical Parameters, Medication Use, and Immunological Biomarkers. Respiration 2021; 101:441-454. [PMID: 34942619 PMCID: PMC9153354 DOI: 10.1159/000520196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 09/17/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Whether immunological biomarkers combined with clinical characteristics measured during an exacerbation-free period are predictive of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) frequency and severity is unknown. METHOD We measured immunological biomarkers and clinical characteristics in 271 stable chronic obstructive pulmonary disease (COPD) patients (67% male, mean age 63 years) from "The Obstructive Pulmonary Disease Outcomes Cohort of Switzerland" cohort on a single occasion. One-year follow-up data were available for 178 patients. Variables independently associated with AECOPD frequency and severity were identified by multivariable regression analyses. Receiver operating characteristic analysis was used to obtain optimal cutoff levels and measure the area under the curve (AUC) in order to assess if baseline data can be used to predict future AECOPD. RESULTS Higher number of COPD medications (adjusted incident rate ratio [aIRR] 1.17) and platelet count (aIRR 1.03), and lower FEV1% predicted (aIRR 0.84) and IgG2 (aIRR 0.84) were independently associated with AECOPD frequency in the year before baseline. Optimal cutoff levels for experiencing frequent (>1) AECOPD were ≥3 COPD medications (AUC = 0.72), FEV1 ≤40% predicted (AUC = 0.72), and IgG2 ≤2.6 g/L (AUC = 0.64). The performance of a model using clinical and biomarker parameters to predict future, frequent AECOPD events in the same patients was fair (AUC = 0.78) but not superior to a model using only clinical parameters (AUC = 0.79). The IFN-lambda rs8099917GG-genotype was more prevalent in patients who had severe AECOPD. CONCLUSIONS Clinical and biomarker parameters assessed at a single point in time correlated with the frequency of AECOPD events during the year before and the year after assessment. However, only clinical parameters had fair discriminatory power in identifying patients likely to experience frequent AECOPD.
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Affiliation(s)
- Simona Tabea Huebner
- University Clinic of Medicine, Cantonal Hospital Baselland, Liestal, Switzerland,
- Faculty of Medicine, University of Basel, Basel, Switzerland,
| | - Simona Henny
- University Clinic of Medicine, Cantonal Hospital Baselland, Liestal, Switzerland
| | | | - Thomas Brack
- Department of Internal Medicine, Cantonal Hospital Glarus, Glarus, Switzerland
| | - Martin Brutsche
- Division of Respiratory Medicine, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Prashant Chhajed
- University Clinic of Medicine, Cantonal Hospital Baselland, Liestal, Switzerland
| | - Christian Clarenbach
- Division of Respiratory Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Thomas Dieterle
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Adrian Egli
- Division of Clinical Microbiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Martin Frey
- Division of Respiratory Medicine, Hospital Barmelweid, Barmelweid, Switzerland
| | - Ingmar Heijnen
- Division of Medical Immunology, Department of Laboratory Medicine, University Hospital Basel, Basel, Switzerland
| | - Sarosh Irani
- Division of Respiratory Medicine, Cantonal Hospital Aarau, Aarau, Switzerland
| | | | - Robert Thurnheer
- Division of Respiratory Medicine, Cantonal Hospital Münsterlingen, Münsterlingen, Switzerland
| | - Marten Trendelenburg
- Faculty of Medicine, University of Basel, Basel, Switzerland
- Division of Internal Medicine, University Hospital Basel, and Clinical Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Malcolm Kohler
- Division of Respiratory Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Anne Barbara Leuppi-Taegtmeyer
- Faculty of Medicine, University of Basel, Basel, Switzerland
- Department of Clinical Pharmacology, University Hospital Basel, Basel, Switzerland
| | - Joerg Daniel Leuppi
- University Clinic of Medicine, Cantonal Hospital Baselland, Liestal, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
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16
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Sex differences in innate anti-viral immune responses to respiratory viruses and in their clinical outcomes in a birth cohort study. Sci Rep 2021; 11:23741. [PMID: 34887467 PMCID: PMC8660814 DOI: 10.1038/s41598-021-03044-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 11/23/2021] [Indexed: 11/21/2022] Open
Abstract
The mechanisms explaining excess morbidity and mortality in respiratory infections among males are poorly understood. Innate immune responses are critical in protection against respiratory virus infections. We hypothesised that innate immune responses to respiratory viruses may be deficient in males. We stimulated peripheral blood mononuclear cells from 345 participants at age 16 years in a population-based birth cohort with three live respiratory viruses (rhinoviruses A16 and A1, and respiratory syncytial virus) and two viral mimics (R848 and CpG-A, to mimic responses to SARS-CoV-2) and investigated sex differences in interferon (IFN) responses. IFN-α responses to all viruses and stimuli were 1.34-2.06-fold lower in males than females (P = 0.018 - < 0.001). IFN-β, IFN-γ and IFN-induced chemokines were also deficient in males across all stimuli/viruses. Healthcare records revealed 12.1% of males and 6.6% of females were hospitalized with respiratory infections in infancy (P = 0.017). In conclusion, impaired innate anti-viral immunity in males likely results in high male morbidity and mortality from respiratory virus infections.
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17
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Cheemarla NR, Watkins TA, Mihaylova VT, Wang B, Zhao D, Wang G, Landry ML, Foxman EF. Dynamic innate immune response determines susceptibility to SARS-CoV-2 infection and early replication kinetics. J Exp Med 2021; 218:e20210583. [PMID: 34128960 PMCID: PMC8210587 DOI: 10.1084/jem.20210583] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/21/2021] [Accepted: 06/01/2021] [Indexed: 12/25/2022] Open
Abstract
Initial replication of SARS-CoV-2 in the upper respiratory tract is required to establish infection, and the replication level correlates with the likelihood of viral transmission. Here, we examined the role of host innate immune defenses in restricting early SARS-CoV-2 infection using transcriptomics and biomarker-based tracking in serial patient nasopharyngeal samples and experiments with airway epithelial organoids. SARS-CoV-2 initially replicated exponentially, with a doubling time of ∼6 h, and induced interferon-stimulated genes (ISGs) in the upper respiratory tract, which rose with viral replication and peaked just as viral load began to decline. Rhinovirus infection before SARS-CoV-2 exposure accelerated ISG responses and prevented SARS-CoV-2 replication. Conversely, blocking ISG induction during SARS-CoV-2 infection enhanced viral replication from a low infectious dose. These results show that the activity of ISG-mediated defenses at the time of SARS-CoV-2 exposure impacts infection progression and that the heterologous antiviral response induced by a different virus can protect against SARS-CoV-2.
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Affiliation(s)
- Nagarjuna R. Cheemarla
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT
- Department of Immunobiology, Yale School of Medicine, New Haven, CT
| | - Timothy A. Watkins
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT
- Department of Immunobiology, Yale School of Medicine, New Haven, CT
| | - Valia T. Mihaylova
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT
| | - Bao Wang
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT
- Department of Immunobiology, Yale School of Medicine, New Haven, CT
| | - Dejian Zhao
- Department of Genetics, Yale School of Medicine, New Haven, CT
- Yale Center for Genomic Analysis, Yale School of Medicine, New Haven, CT
| | - Guilin Wang
- Department of Genetics, Yale School of Medicine, New Haven, CT
- Yale Center for Genomic Analysis, Yale School of Medicine, New Haven, CT
| | - Marie L. Landry
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT
| | - Ellen F. Foxman
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT
- Department of Immunobiology, Yale School of Medicine, New Haven, CT
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18
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ILRUN Downregulates ACE2 Expression and Blocks Infection of Human Cells by SARS-CoV-2. J Virol 2021; 95:e0032721. [PMID: 33963054 DOI: 10.1128/jvi.00327-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The human protein-coding gene ILRUN (inflammation and lipid regulator with UBA-like and NBR1-like domains; previously C6orf106) was identified as a proviral factor for Hendra virus infection and was recently characterized to function as an inhibitor of type I interferon expression. Here, we have utilized transcriptome sequencing (RNA-seq) to define cellular pathways regulated by ILRUN in the context of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection of Caco-2 cells. We find that inhibition of ILRUN expression by RNA interference alters transcription profiles of numerous cellular pathways, including upregulation of the SARS-CoV-2 entry receptor ACE2 and several other members of the renin-angiotensin aldosterone system. In addition, transcripts of the SARS-CoV-2 coreceptors TMPRSS2 and CTSL were also upregulated. Inhibition of ILRUN also resulted in increased SARS-CoV-2 replication, while overexpression of ILRUN had the opposite effect, identifying ILRUN as a novel antiviral factor for SARS-CoV-2 replication. This represents, to our knowledge, the first report of ILRUN as a regulator of the renin-angiotensin-aldosterone system (RAAS). IMPORTANCE There is no doubt that the current rapid global spread of COVID-19 has had significant and far-reaching impacts on our health and economy and will continue to do so. Research in emerging infectious diseases, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is growing rapidly, with new breakthroughs in the understanding of host-virus interactions to assist with the development of innovative and exciting therapeutic strategies. Here, we present the first evidence that modulation of the human protein-coding gene ILRUN functions as an antiviral factor for SARS-CoV-2 infection, likely through its newly identified role in regulating the expression of SARS-CoV-2 entry receptors ACE2, TMPRSS2, and CTSL. These data improve our understanding of biological pathways that regulate host factors critical to SARS-CoV-2 infection, contributing to the development of antiviral strategies to deal with the current SARS-CoV-2 pandemic.
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19
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Padayachee Y, Flicker S, Linton S, Cafferkey J, Kon OM, Johnston SL, Ellis AK, Desrosiers M, Turner P, Valenta R, Scadding GK. Review: The Nose as a Route for Therapy. Part 2 Immunotherapy. FRONTIERS IN ALLERGY 2021; 2:668781. [PMID: 35387044 PMCID: PMC8974912 DOI: 10.3389/falgy.2021.668781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/28/2021] [Indexed: 12/12/2022] Open
Abstract
The nose provides a route of access to the body for inhalants and fluids. Unsurprisingly it has a strong immune defense system, with involvement of innate (e.g., epithelial barrier, muco- ciliary clearance, nasal secretions with interferons, lysozyme, nitric oxide) and acquired (e.g., secreted immunoglobulins, lymphocytes) arms. The lattice network of dendritic cells surrounding the nostrils allows rapid uptake and sampling of molecules able to negotiate the epithelial barrier. Despite this many respiratory infections, including SARS-CoV2, are initiated through nasal mucosal contact, and the nasal mucosa is a significant "reservoir" for microbes including Streptococcus pneumoniae, Neisseria meningitidis and SARS -CoV-2. This review includes consideration of the augmentation of immune defense by the nasal application of interferons, then the reduction of unnecessary inflammation and infection by alteration of the nasal microbiome. The nasal mucosa and associated lymphoid tissue (nasopharynx-associated lymphoid tissue, NALT) provides an important site for vaccine delivery, with cold-adapted live influenza strains (LAIV), which replicate intranasally, resulting in an immune response without significant clinical symptoms, being the most successful thus far. Finally, the clever intranasal application of antibodies bispecific for allergens and Intercellular Adhesion Molecule 1 (ICAM-1) as a topical treatment for allergic and RV-induced rhinitis is explained.
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Affiliation(s)
- Yorissa Padayachee
- Department of Respiratory Medicine, Faculty of Medicine, Imperial College Healthcare NHS Trust, Imperial College London, London, United Kingdom
| | - Sabine Flicker
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Sophia Linton
- Division of Allergy and Immunology, Department of Medicine, Queen's University, Kingston, ON, Canada
- Allergy Research Unit, Kingston Health Sciences Centre (KHSC), Kingston, ON, Canada
| | - John Cafferkey
- Department of Respiratory Medicine, Faculty of Medicine, Imperial College Healthcare NHS Trust, Imperial College London, London, United Kingdom
| | - Onn Min Kon
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sebastian L. Johnston
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Anne K. Ellis
- Division of Allergy and Immunology, Department of Medicine, Queen's University, Kingston, ON, Canada
| | - Martin Desrosiers
- Department of Otorhinolaryngologie, The University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada
| | - Paul Turner
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Rudolf Valenta
- Division of Immunopathology, Medical University of Vienna, Vienna, Austria
| | - Glenis Kathleen Scadding
- Royal National Ear Nose and Throat Hospital, University College London Hospitals NHS Foundation Trust, London, United Kingdom
- Division of Infection and Immunity, Faculty of Medical Sciences, University College London, London, United Kingdom
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20
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Wronski S, Beinke S, Obernolte H, Belyaev NN, Saunders KA, Lennon MG, Schaudien D, Braubach P, Jonigk D, Warnecke G, Zardo P, Fieguth HG, Wilkens L, Braun A, Hessel EM, Sewald K. Rhinovirus-induced Human Lung Tissue Responses Mimic COPD and Asthma Gene Signatures. Am J Respir Cell Mol Biol 2021; 65:544-554. [PMID: 34181859 PMCID: PMC8641849 DOI: 10.1165/rcmb.2020-0337oc] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Human rhinovirus (RV) is a major risk factor for chronic obstructive pulmonary disease (COPD) and asthma exacerbations. The exploration of RV pathogenesis has been hampered by a lack of disease-relevant model systems. We performed a detailed characterization of host responses to RV infection in human lung tissue ex vivo and investigated whether these responses are disease relevant for patients with COPD and asthma. In addition, impact of the viral replication inhibitor rupintrivir was evaluated. Human precision-cut lung slices (PCLS) were infected with RV1B with or without rupintrivir. At Days 1 and 3 after infection, RV tissue localization, tissue viability, and viral load were determined. To characterize host responses to infection, mediator and whole genome analyses were performed. RV successfully replicated in PCLS airway epithelial cells and induced both antiviral and proinflammatory cytokines such as IFNα2a, CXCL10, CXCL11, IFN-γ, TNFα, and CCL5. Genomic analyses revealed that RV not only induced antiviral immune responses but also triggered changes in epithelial cell–associated pathways. Strikingly, the RV response in PCLS was reflective of gene expression changes described in patients with COPD and asthma. Although RV-induced host immune responses were abrogated by rupintrivir, RV-triggered epithelial processes were largely refractory to antiviral treatment. Detailed analysis of RV-infected human PCLS and comparison with gene signatures of patients with COPD and asthma revealed that the human RV PCLS model represents disease-relevant biological mechanisms that can be partially inhibited by a well-known antiviral compound and provide an outstanding opportunity to evaluate novel therapeutics.
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Affiliation(s)
- Sabine Wronski
- Fraunhofer Institute for Toxicology and Experimental Medicine, Member of Fraunhofer international Consortium for Anti-Infective Research (iCAIR), Member of Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany;
| | - Soren Beinke
- Research and Development, GlaxoSmithKline, Stevenage, United Kingdom of Great Britain and Northern Ireland
| | - Helena Obernolte
- Fraunhofer Institute for Toxicology and Experimental Medicine, Member of Fraunhofer international Consortium for Anti-Infective Research (iCAIR), Member of Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany
| | - Nikolai N Belyaev
- Research and Development, GlaxoSmithKline, Stevenage, United Kingdom of Great Britain and Northern Ireland
| | - Ken A Saunders
- Research and Development, GlaxoSmithKline, Stevenage, United Kingdom of Great Britain and Northern Ireland
| | - Mark G Lennon
- Research and Development, GlaxoSmithKline, Stevenage, United Kingdom of Great Britain and Northern Ireland
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine, Member of Fraunhofer international Consortium for Anti-Infective Research (iCAIR), Member of Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Dsease (BREATH), Hannover, Germany
| | - Peter Braubach
- Hannover Medical School, 9177, Department of Pathology, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany
| | - Danny Jonigk
- Hannover Medical School, 9177, Department of Pathology, Hannover, Niedersachsen, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany
| | - Gregor Warnecke
- Hannover Medical School, 9177, Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany
| | - Patrick Zardo
- Hannover Medical School, 9177, Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover, Germany
| | | | | | - Armin Braun
- Fraunhofer Institute for Toxicology and Experimental Medicine, Member of Fraunhofer international Consortium for Anti-Infective Research (iCAIR), Member of Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany
| | - Edith M Hessel
- Research and Development, GlaxoSmithKline, Stevenage, United Kingdom of Great Britain and Northern Ireland
| | - Katherina Sewald
- Fraunhofer Institute for Toxicology and Experimental Medicine, Member of Fraunhofer international Consortium for Anti-Infective Research (iCAIR), Member of Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hannover, Germany.,Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Hannover, Germany
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21
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Respiratory syncytial virus activates Rab5a to suppress IRF1-dependent IFN-λ production, subverting the antiviral defense of airway epithelial cells. J Virol 2021; 95:JVI.02333-20. [PMID: 33504607 PMCID: PMC8103688 DOI: 10.1128/jvi.02333-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The limited antiviral options and lack of an effective vaccine against human respiratory syncytial virus (RSV) highlight the need for a novel antiviral therapy. One alternative is to identify and target the host factors required for viral infection. Here, using RNA interference to knock down Rab proteins, we provide multiple lines of evidence that Rab5a is required for RSV infection: (a) Rab5a is upregulated both in RSV-A2-infected A549 cells and RSV-A2-challenged BALB/c mice's airway epithelial cells at early infection phase; (b) shRNA-mediated knockdown of Rab5a is associated with reduced lung pathology in RSV A2 challenged mice; (c) Rab5a expression is correlated with disease severity of RSV infection of infants. Knockdown of Rab5a increases IFN-λ (lambda) production by mediating IRF1 nuclear translocation. Our results highlight a new role for Rab5a in RSV infection, such that its depletion inhibits RSV infection by stimulating the endogenous respiratory epithelial antiviral immunity, which suggests that Rab5a is a potential target for novel therapeutics against RSV infection.Importance This study highlights the important role of Rab5a in RSV infection, such that its depletion inhibits RSV infection by stimulating the endogenous respiratory epithelial antiviral immunity and attenuates inflammation of the airway, which suggests that Rab5a is a powerful potential target for novel therapeutics against RSV infection.
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22
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Johnston SL, Goldblatt DL, Evans SE, Tuvim MJ, Dickey BF. Airway Epithelial Innate Immunity. Front Physiol 2021; 12:749077. [PMID: 34899381 PMCID: PMC8662554 DOI: 10.3389/fphys.2021.749077] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/28/2021] [Indexed: 01/21/2023] Open
Abstract
Besides providing an essential protective barrier, airway epithelial cells directly sense pathogens and respond defensively. This is a frontline component of the innate immune system with specificity for different pathogen classes. It occurs in the context of numerous interactions with leukocytes, but here we focus on intrinsic epithelial mechanisms. Type 1 immune responses are directed primarily at intracellular pathogens, particularly viruses. Prominent stimuli include microbial nucleic acids and interferons released from neighboring epithelial cells. Epithelial responses revolve around changes in the expression of interferon-sensitive genes (ISGs) that interfere with viral replication, as well as the further induction of interferons that signal in autocrine and paracrine manners. Type 2 immune responses are directed primarily at helminths and fungi. Prominent pathogen stimuli include proteases and chitin, and important responses include mucin hypersecretion and chitinase release. Type 3 immune responses are directed primarily at extracellular microbial pathogens, including bacteria and fungi, as well as viruses during their extracellular phase of infection. Prominent microbial stimuli include bacterial wall components, such as lipopeptides and endotoxin, as well as microbial nucleic acids. Key responses are the release of reactive oxygen species (ROS) and antimicrobial peptides (AMPs). For all three types of response, paracrine signaling to neighboring epithelial cells induces resistance to infection over a wide field. Often, the epithelial effector molecules themselves also have signaling properties, in addition to the release of inflammatory cytokines that boost local innate immunity. Together, these epithelial mechanisms provide a powerful first line of pathogen defense, recruit leukocytes, and instruct adaptive immune responses.
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Affiliation(s)
- Sebastian L Johnston
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - David L Goldblatt
- Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, United States.,University of Texas Rio Grande School of Medicine, Edinburg, TX, United States.,Howard Hughes Medical Institute, Chevy Chase, MD, United States
| | - Scott E Evans
- Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Michael J Tuvim
- Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Burton F Dickey
- Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, United States
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23
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Murphy RC, Lai Y, Barrow KA, Hamerman JA, Lacy-Hulbert A, Piliponsky AM, Ziegler SF, Altemeier WA, Debley JS, Gharib SA, Hallstrand TS. Effects of Asthma and Human Rhinovirus A16 on the Expression of SARS-CoV-2 Entry Factors in Human Airway Epithelium. Am J Respir Cell Mol Biol 2020; 63:859-863. [PMID: 32946274 PMCID: PMC7790138 DOI: 10.1165/rcmb.2020-0394le] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
| | - Ying Lai
- University of WashingtonSeattle, Washington
| | | | | | | | | | | | | | - Jason S. Debley
- Seattle Children’s Research InstituteSeattle, Washington
- Seattle Children’s HospitalSeattle, Washington
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24
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van der Heide SL, Xi Y, Upham JW. Natural Killer Cells and Host Defense Against Human Rhinoviruses Is Partially Dependent on Type I IFN Signaling. Front Cell Infect Microbiol 2020; 10:510619. [PMID: 33194777 PMCID: PMC7609819 DOI: 10.3389/fcimb.2020.510619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 10/02/2020] [Indexed: 12/12/2022] Open
Abstract
Rhinovirus (RV), the causative agent of the common cold, causes only mild upper respiratory tract infections in healthy individuals, but can cause longer lasting and more severe pulmonary infections in people with chronic lung diseases and in the setting of immune suppression or immune deficiency. RV-infected lung structural cells release type I interferon (IFN-I), initiating the immune response, leading to protection against viruses in conjunction with migratory immune cells. However, IFN-I release is deficient in some people with asthma. Innate immune cells, such as natural killer (NK) cells, are proposed to play major roles in the control of viral infections, and may contribute to exacerbations of chronic lung diseases, such as asthma. In this study, we characterized the NK cell response to RV infection using an in vitro model of infection in healthy individuals, and determined the extent to which IFN-I signaling mediates this response. The results indicate that RV stimulation in vitro induces NK cell activation in healthy donors, leading to degranulation and the release of cytotoxic mediators and cytokines. IFN-I signaling was partly responsible for NK cell activation and functional responses to RV. Overall, our findings suggest the involvement of NK cells in the control of RV infection in healthy individuals. Further understanding of NK cell regulation may deepen our understanding of the mechanisms that contribute to susceptibility to RV infections in asthma and other chronic lung diseases.
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Affiliation(s)
- Saskia L van der Heide
- Lung and Allergy Research Centre, Diamantina Institute, The University of Queensland, Woolloongabba, QLD, Australia
| | - Yang Xi
- Lung and Allergy Research Centre, Diamantina Institute, The University of Queensland, Woolloongabba, QLD, Australia
| | - John W Upham
- Lung and Allergy Research Centre, Diamantina Institute, The University of Queensland, Woolloongabba, QLD, Australia.,Department of Respiratory Medicine, Princess Alexandra Hospital, Brisbane, QLD, Australia
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25
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Wehenkel C. Positive association between COVID-19 deaths and influenza vaccination rates in elderly people worldwide. PeerJ 2020. [DOI: 10.7717/peerj.10112] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BackgroundThe coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is an ongoing global health crisis, directly and indirectly impacting all spheres of human life. Some pharmacological measures have been proposed to prevent COVID-19 or reduce its severity, such as vaccinations. Previous reports indicate that influenza vaccination appears to be negatively correlated with COVID-19-associated mortality, perhaps as a result of heterologous immunity or changes in innate immunity. The understanding of such trends in correlations could prevent deaths from COVID-19 in the future. The aim of this study was therefore to analyze the association between COVID-19 related deaths and influenza vaccination rate (IVR) in elderly people worldwide.MethodsTo determine the association between COVID-19 deaths and influenza vaccination, available data sets from countries with more than 0.5 million inhabitants were analyzed (in total 39 countries). To accurately estimate the influence of IVR on COVID-19 deaths and mitigate effects of confounding variables, a sophisticated ranking of the importance of different variables was performed, including as predictor variables IVR and some potentially important geographical and socioeconomic variables as well as variables related to non-pharmaceutical intervention. The associations were measured by non-parametric Spearman rank correlation coefficients and random forest functions.ResultsThe results showed a positive association between COVID-19 deaths and IVR of people ≥65 years-old. There is a significant increase in COVID-19 deaths from eastern to western regions in the world. Further exploration is needed to explain these findings, and additional work on this line of research may lead to prevention of deaths associated with COVID-19.
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26
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Seasonal Influenza Vaccination and the Heightened Risk of Coronavirus and Other Pandemic Virus Infections: Fact or Fiction? Indian Pediatr 2020. [PMID: 32525495 PMCID: PMC7444173 DOI: 10.1007/s13312-020-1936-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Cafferkey J, Coultas JA, Mallia P. Human rhinovirus infection and COPD: role in exacerbations and potential for therapeutic targets. Expert Rev Respir Med 2020; 14:777-789. [PMID: 32498634 DOI: 10.1080/17476348.2020.1764354] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Respiratory virus infections (predominantly rhinoviruses) are the commonly identified in COPD exacerbations but debate about their role as a trigger of exacerbations continues. Experimental infection studies have provided significant new evidence establishing a causal relationship between virus infection and COPD exacerbations and contributed to a better understanding of the mechanisms of virus-induced exacerbations. However as yet no anti-viral treatments have undergone clinical trials in COPD patients. AREAS COVERED This review discusses the evidence for and against respiratory viruses being the main trigger of COPD exacerbations from both epidemiological studies and experimental infection studies. The host immune response to rhinovirus infection and how abnormalities in host immunity may underlie increased susceptibility to virus infection in COPD are discussed and the role of dual viral-bacterial infection in COPD exacerbations. Finally the current state of anti-viral therapy is discussed and how these may be used in the future treatment of COPD exacerbations. EXPERT OPINION Respiratory virus infections are the trigger of a substantial proportion of COPD exacerbations and rhinoviruses are the most common virus type. Clinical trials of anti-viral agents are needed in COPD patients to determine whether they are effective in virus-induced COPD exacerbations.
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Affiliation(s)
- John Cafferkey
- Department of Respiratory Medicine, Imperial College Healthcare NHS Trust , London, UK
| | | | - Patrick Mallia
- Department of Respiratory Medicine, Imperial College Healthcare NHS Trust , London, UK.,National Heart and Lung Institute, Imperial College London , London, UK
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28
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Campbell LK, Magor KE. Pattern Recognition Receptor Signaling and Innate Responses to Influenza A Viruses in the Mallard Duck, Compared to Humans and Chickens. Front Cell Infect Microbiol 2020; 10:209. [PMID: 32477965 PMCID: PMC7236763 DOI: 10.3389/fcimb.2020.00209] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/16/2020] [Indexed: 12/25/2022] Open
Abstract
Mallard ducks are a natural host and reservoir of avian Influenza A viruses. While most influenza strains can replicate in mallards, the virus typically does not cause substantial disease in this host. Mallards are often resistant to disease caused by highly pathogenic avian influenza viruses, while the same strains can cause severe infection in humans, chickens, and even other species of ducks, resulting in systemic spread of the virus and even death. The differences in influenza detection and antiviral effectors responsible for limiting damage in the mallards are largely unknown. Domestic mallards have an early and robust innate response to infection that seems to limit replication and clear highly pathogenic strains. The regulation and timing of the response to influenza also seems to circumvent damage done by a prolonged or dysregulated immune response. Rapid initiation of innate immune responses depends on viral recognition by pattern recognition receptors (PRRs) expressed in tissues where the virus replicates. RIG-like receptors (RLRs), Toll-like receptors (TLRs), and Nod-like receptors (NLRs) are all important influenza sensors in mammals during infection. Ducks utilize many of the same PRRs to detect influenza, namely RIG-I, TLR7, and TLR3 and their downstream adaptors. Ducks also express many of the same signal transduction proteins including TBK1, TRIF, and TRAF3. Some antiviral effectors expressed downstream of these signaling pathways inhibit influenza replication in ducks. In this review, we summarize the recent advances in our understanding of influenza recognition and response through duck PRRs and their adaptors. We compare basal tissue expression and regulation of these signaling components in birds, to better understand what contributes to influenza resistance in the duck.
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Affiliation(s)
- Lee K Campbell
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.,Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
| | - Katharine E Magor
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.,Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
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29
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Altman MC, Beigelman A, Ciaccio C, Gern JE, Heymann PW, Jackson DJ, Kennedy JL, Kloepfer K, Lemanske RF, McWilliams LM, Muehling L, Nance C, Peebles RS. Evolving concepts in how viruses impact asthma: A Work Group Report of the Microbes in Allergy Committee of the American Academy of Allergy, Asthma & Immunology. J Allergy Clin Immunol 2020; 145:1332-1344. [PMID: 31926183 PMCID: PMC7577409 DOI: 10.1016/j.jaci.2019.12.904] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022]
Abstract
Over the past decade, there have been substantial advances in our understanding about how viral infections regulate asthma. Important lessons have been learned from birth cohort studies examining viral infections and subsequent asthma and from understanding the relationships between host genetics and viral infections, the contributions of respiratory viral infections to patterns of immune development, the impact of environmental exposure on the severity of viral infections, and how the viral genome influences host immune responses to viral infections. Further, there has been major progress in our knowledge about how bacteria regulate host immune responses in asthma pathogenesis. In this article, we also examine the dynamics of bacterial colonization of the respiratory tract during viral upper respiratory tract infection, in addition to the relationship of the gut and respiratory microbiomes with respiratory viral infections. Finally, we focus on potential interventions that could decrease virus-induced wheezing and asthma. There are emerging therapeutic options to decrease the severity of wheezing exacerbations caused by respiratory viral infections. Primary prevention is a major goal, and a strategy toward this end is considered.
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Affiliation(s)
| | - Avraham Beigelman
- Division of Pediatric Allergy, Immunology & Pulmonary Medicine, Washington University School of Medicine, St Louis, Mo; Kipper Institute of Allergy and Immunology, Schneider Children's Medical Center of Israel, Tel Aviv University, Petach Tikvah, Israel
| | - Christina Ciaccio
- Allergy/Immunology and Pediatric Pulmonology and Sleep Medicine, University of Chicago School of Medicine, Chicago, Ill
| | - James E Gern
- Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Peter W Heymann
- Department of Pediatrics, University of Virginia Medical Center, Charlottesville, Va
| | - Daniel J Jackson
- Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Joshua L Kennedy
- Division of Allergy/Immunology, Departments of Pediatrics and Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, Ark
| | - Kirsten Kloepfer
- Division of Pediatric Pulmonology, Allergy and Sleep Medicine, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Ind
| | - Robert F Lemanske
- Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | | | - Lyndsey Muehling
- Department of Medicine, University of Virginia Medical Center, Charlottesville, Va
| | - Christy Nance
- Department of Pediatrics, Baylor College of Medicine, Houston, Tex; Department of Immunology/Pathology, Baylor College of Medicine, Houston, Tex
| | - R Stokes Peebles
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, Tenn.
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30
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Nikonova A, Khaitov M, Jackson DJ, Traub S, Trujillo-Torralbo MB, Kudlay DA, Dvornikov AS, Del-Rosario A, Valenta R, Stanciu LA, Khaitov R, Johnston SL. M1-like macrophages are potent producers of anti-viral interferons and M1-associated marker-positive lung macrophages are decreased during rhinovirus-induced asthma exacerbations. EBioMedicine 2020; 54:102734. [PMID: 32279057 PMCID: PMC7152663 DOI: 10.1016/j.ebiom.2020.102734] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/04/2020] [Accepted: 03/09/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Macrophages (Mф) can be M1/M2 polarized by Th1/2 signals, respectively. M2-like Mф are thought to be important in asthma pathogenesis, and M1-like in anti-infective immunity, however their roles in virus-induced asthma exacerbations are unknown. Our objectives were (i) to assess polarised Mф phenotype responses to rhinovirus (RV) infection in vitro and (ii) to assess Mф phenotypes in healthy subjects and people with asthma before and during experimental RV infection in vivo. METHODS We investigated characteristics of polarized/unpolarized human monocyte-derived Mф (MDM, from 3-6 independent donors) in vitro and evaluated frequencies of M1/M2-like bronchoalveolar lavage (BAL) Mф in experimental RV-induced asthma exacerbation in 7 healthy controls and 17 (at baseline) and 18 (at day 4 post infection) people with asthma. FINDINGS We observed in vitro: M1-like but not M2-like or unpolarized MDM are potent producers of type I and III interferons in response to RV infection (P<0.0001), and M1-like are more resistant to RV infection (P<0.05); compared to M1-like, M2-like MDM constitutively produced higher levels of CCL22/MDC (P = 0.007) and CCL17/TARC (P<0.0001); RV-infected M1-like MDM were characterized as CD14+CD80+CD197+ (P = 0.002 vs M2-like, P<0.0001 vs unpolarized MDM). In vivo we found reduced percentages of M1-like CD14+CD80+CD197+ BAL Mф in asthma during experimental RV16 infection compared to baseline (P = 0.024). INTERPRETATION Human M1-like BAL Mф are likely important contributors to anti-viral immunity and their numbers are reduced in patients with allergic asthma during RV-induced asthma exacerbations. This mechanism may be one explanation why RV-triggered clinical and pathologic outcomes are more severe in allergic patients than in healthy subjects. FUNDING ERC FP7 Advanced grant 233015, MRC Centre Grant G1000758, Asthma UK grant 08-048, NIHR Biomedical Research Centre funding scheme, NIHR BRC Centre grant P26095, the Predicta FP7 Collaborative Project grant 260895, RSF grant 19-15-00272, Megagrant No 14.W03.31.0024.
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Affiliation(s)
- Alexandra Nikonova
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Norfolk Place, London W2 1PG, United Kingdom; NRC Institute of Immunology FMBA, Kashirskoe shosse 24, 115478 Moscow, Russian Federation; Mechnikov Research Institute for Vaccines and Sera, M. Kazenny per., 5A, 105064 Moscow, Russian Federation.
| | - Musa Khaitov
- NRC Institute of Immunology FMBA, Kashirskoe shosse 24, 115478 Moscow, Russian Federation.
| | - David J Jackson
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; Imperial College Healthcare NHS Trust, Norfolk Place, London W2 1PG, United Kingdom; MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Norfolk Place, London W2 1PG, United Kingdom.
| | - Stephanie Traub
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Norfolk Place, London W2 1PG, United Kingdom.
| | - Maria-Belen Trujillo-Torralbo
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; Imperial College Healthcare NHS Trust, Norfolk Place, London W2 1PG, United Kingdom
| | - Dmitriy A Kudlay
- NRC Institute of Immunology FMBA, Kashirskoe shosse 24, 115478 Moscow, Russian Federation
| | - Anton S Dvornikov
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117513 Moscow, Russian Federation.
| | - Ajerico Del-Rosario
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; Imperial College Healthcare NHS Trust, Norfolk Place, London W2 1PG, United Kingdom.
| | - Rudolf Valenta
- NRC Institute of Immunology FMBA, Kashirskoe shosse 24, 115478 Moscow, Russian Federation; Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
| | - Luminita A Stanciu
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Norfolk Place, London W2 1PG, United Kingdom.
| | - Rahim Khaitov
- NRC Institute of Immunology FMBA, Kashirskoe shosse 24, 115478 Moscow, Russian Federation.
| | - Sebastian L Johnston
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, United Kingdom; Imperial College Healthcare NHS Trust, Norfolk Place, London W2 1PG, United Kingdom; MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, Norfolk Place, London W2 1PG, United Kingdom.
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31
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Chen ICM, Loh JP, Chuah CXP, Gao QHC, Sun Y, Ng SH, Koh WHV, Goh EH, Zhao X, Tambyah PA, Cook AR, Chng J, Pang J, Tan BH, Lee VJ. Evidence for Cross-Protection Against Subsequent Febrile Respiratory Illness Episodes From Prior Infections by Different Viruses Among Singapore Military Recruits 2009-2014. J Infect Dis 2020; 219:1913-1923. [PMID: 30722024 PMCID: PMC6534195 DOI: 10.1093/infdis/jiz046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/27/2019] [Indexed: 12/22/2022] Open
Abstract
Background Few studies have evaluated the relative cross-protection conferred by infection with different groups of viruses through studies of sequential infections in humans. We investigated the presence of short-lived relative cross-protection conferred by specific prior viral infections against subsequent febrile respiratory illness (FRI). Methods Men enlisted in basic military training between December 2009 and December 2014 were recruited, with the first FRI as the study entry point. ResPlex II assays and real-time polymerase chain reaction assays were used to detect viral pathogens in nasal wash samples, and survival analyses were performed to determine whether infection with particular viruses conferred short-lived relative cross-protection against FRI. Results Prior infection with adenovirus (hazard ratio [HR], 0.24; 95% confidence interval [CI], .14–.44) or influenza virus (HR, 0.52; 95% CI, .38–.73) conferred relative protection against subsequent FRI episode. Results were statistically significant even after adjustment for the interval between enlistment and FRI (P < .001). Adenovirus-positive participants with FRI episodes tended to be protected against subsequent infection with adenovirus, coronavirus, enterovirus/rhinovirus, and influenza virus (P = .062–.093), while men with influenza virus–positive FRI episodes tended be protected against subsequent infection with adenovirus (P = .044) and influenza virus (P = .081). Conclusion Prior adenovirus or influenza virus infection conferred cross-protection against subsequent FRI episodes relative to prior infection due to other circulating viruses.
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Affiliation(s)
- I-Cheng Mark Chen
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore.,Infectious Disease Research and Training Office, National Centre for Infectious Diseases, Singapore
| | | | - Cheryl X P Chuah
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore
| | | | - Yinxiaohe Sun
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore.,Centre for Infectious Disease Epidemiology and Research, Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore
| | | | | | - Ee Hui Goh
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore
| | - Xiahong Zhao
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore
| | - Paul Anantharajah Tambyah
- Yong Loo Lin School of Medicine, National University of Singapore and National University Hospital System, Singapore
| | - Alex R Cook
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore
| | - Jeremiah Chng
- Biodefence Centre, Headquarters Medical Corps, Singapore Armed Forces, Singapore
| | - Junxiong Pang
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore.,Centre for Infectious Disease Epidemiology and Research, Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore
| | - Boon-Huan Tan
- DSO National Laboratories, Singapore.,Infection and Immunity, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Vernon J Lee
- Saw Swee Hock School of Public Health, National University of Singapore and National University Hospital System, Singapore.,Biodefence Centre, Headquarters Medical Corps, Singapore Armed Forces, Singapore
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Katayama S, Stenberg Hammar K, Krjutškov K, Einarsdottir E, Hedlin G, Kere J, Söderhäll C. Acute wheeze-specific gene module shows correlation with vitamin D and asthma medication. Eur Respir J 2020; 55:13993003.01330-2019. [PMID: 31619476 DOI: 10.1183/13993003.01330-2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 10/07/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Airway obstruction and wheezing in preschool children with recurrent viral infections are a major clinical problem, and are recognised as a risk factor for the development of chronic asthma. We aimed to analyse whether gene expression profiling provides evidence for pathways that delineate distinct groups of children with wheeze, and in combination with clinical information could contribute to diagnosis and prognosis of disease development. METHODS We analysed leukocyte transcriptomes from preschool children (6 months-3 years) at acute wheeze (n=107), and at a revisit 2-3 months later, comparing them to age-matched healthy controls (n=66). RNA-sequencing applying GlobinLock was used. The cases were followed clinically until age 7 years. Differential expression tests, weighted correlation network analysis and logistic regression were applied and correlations to 76 clinical traits evaluated. FINDINGS Significant enrichment of genes involved in the innate immune responses was observed in children with wheeze. We identified a unique acute wheeze-specific gene-module, which was associated with vitamin D levels (p<0.005) in infancy, and asthma medication and FEV1%/FVC (forced expiratory volume in 1 s/forced vital capacity) ratio several years later, at age 7 years (p<0.005). A model that predicts leukotriene receptor antagonist medication at 7 years of age with high accuracy was developed (area under the curve 0.815, 95% CI 0.668-0.962). INTERPRETATION Gene expression profiles in blood from preschool wheezers predict asthma symptoms at school age, and therefore serve as biomarkers. The acute wheeze-specific gene module suggests that molecular phenotyping in combination with clinical information already at an early episode of wheeze may help to distinguish children who will outgrow their wheeze from those who will develop chronic asthma.
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Affiliation(s)
- Shintaro Katayama
- Dept of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.,Both authors contributed equally
| | - Katarina Stenberg Hammar
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Dept of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.,Both authors contributed equally
| | - Kaarel Krjutškov
- Dept of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.,Competence Centre on Health Technologies, Tartu, Estonia.,Folkhälsan Institute of Genetics, and Stem Cells and Metabolism Research Program, University of Helsinki, Helsinki, Finland
| | - Elisabet Einarsdottir
- Dept of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.,Folkhälsan Institute of Genetics, and Stem Cells and Metabolism Research Program, University of Helsinki, Helsinki, Finland.,SciLifeLab, Dept of Gene Technology, KTH-Royal Institute of Technology, Solna, Sweden
| | - Gunilla Hedlin
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Dept of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Juha Kere
- Dept of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.,Folkhälsan Institute of Genetics, and Stem Cells and Metabolism Research Program, University of Helsinki, Helsinki, Finland.,School of Basic and Medical Biosciences, King's College London, Guy's Hospital, London, UK
| | - Cilla Söderhäll
- Dept of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden .,Dept of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
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33
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Rugwizangoga B, Andersson ME, Kabayiza JC, Nilsson MS, Ármannsdóttir B, Aurelius J, Nilsson S, Hellstrand K, Lindh M, Martner A. IFNL4 Genotypes Predict Clearance of RNA Viruses in Rwandan Children With Upper Respiratory Tract Infections. Front Cell Infect Microbiol 2019; 9:340. [PMID: 31637221 PMCID: PMC6787560 DOI: 10.3389/fcimb.2019.00340] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/20/2019] [Indexed: 12/14/2022] Open
Abstract
Polymorphisms in the interferon lambda gene locus (IFNL) such as the IFNL4 genetic variants rs12979860 and rs368234815 are predictive of resolution of hepatitis C virus infection, but information about the impact of these variants in other infections is scarce. This study aimed at determining the potential impact of IFNL4 variation for the clearance of respiratory tract pathogens in Rwandan children (≤5 years old, n = 480) seeking medical care for acute respiratory infections. Nasopharyngeal swabs were retrieved from all children at the first hospital referral and from 161 children at follow-up visits 2 weeks later. The swabs were analyzed for pathogens by real-time PCR and for host cell IFNL4 genotype at rs12979860 and rs368234815. Approximately 1/3 of the children were homozygous for the rs12979860 T allele and the rs368234815 ΔG allele, which are overrepresented in subjects of African descent. These IFNL4 variants were significantly associated with reduced clearance of RNA viruses. Our results suggest that IFNL4 genotypes that are common among subjects of African descent may determine inefficacious clearance of RNA viruses from the respiratory tract.
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Affiliation(s)
- Belson Rugwizangoga
- TIMM Laboratory, Department of Infectious Diseases, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Pathology Unit, Department of Clinical Biology, School of Medicine and Pharmacy, University of Rwanda, Kigali, Rwanda
| | - Maria E Andersson
- Department of Virology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jean-Claude Kabayiza
- Department of Virology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Pediatrics, School of Medicine and Pharmacy, University of Rwanda, Kigali, Rwanda
| | - Malin S Nilsson
- TIMM Laboratory, Department of Infectious Diseases, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Brynja Ármannsdóttir
- Department of Virology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Johan Aurelius
- TIMM Laboratory, Department of Infectious Diseases, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Staffan Nilsson
- Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg, Sweden.,Department of Laboratory Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Kristoffer Hellstrand
- TIMM Laboratory, Department of Infectious Diseases, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Virology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Magnus Lindh
- Department of Virology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anna Martner
- TIMM Laboratory, Department of Infectious Diseases, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Hwang JW, Lee KJ, Choi IH, Han HM, Kim TH, Lee SH. Decreased expression of type I (IFN-β) and type III (IFN-λ) interferons and interferon-stimulated genes in patients with chronic rhinosinusitis with and without nasal polyps. J Allergy Clin Immunol 2019; 144:1551-1565.e2. [PMID: 31449915 PMCID: PMC7111475 DOI: 10.1016/j.jaci.2019.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/21/2019] [Accepted: 08/02/2019] [Indexed: 12/15/2022]
Abstract
Background Little is known about antiviral responses in the sinonasal mucosal tissue of patients with chronic rhinosinusitis (CRS). Objective we investigated the presence of virus and the expression of Toll-like receptor (TLR) 3, TLR7, and interferon and interferon-stimulated genes (ISGs) in healthy mucosal tissue of control subjects and the inflammatory sinus mucosal tissue of CRS patients, and evaluated whether levels of interferons and ISGs might be affected by CRS-related cytokines and by treatment with macrolides, dexamethasone, or TLR3 and TLR7 agonists. Methods The presence of virus in the sinonasal mucosa was evaluated with real-time PCR. The expression of interferons and ISGs in the sinonasal mucosa and in cultured epithelial cells treated with TH1 and TH2 cytokines, macrolides, dexamethasone, or TLR3 and TLR7 agonists were evaluated with real-time PCR and Western blotting. The expression of TLR3 and TLR7 in the sinonasal mucosa were evaluated with immunohistochemistry. Results Respiratory viruses were detected in 15% of samples. Interferons and ISGs are expressed in normal mucosa, but their levels were decreased in patients with CRS. Interferon and ISG levels were upregulated in cells treated with macrolides, dexamethasone, or TLR3 agonist, but some were decreased in cytokine-treated cells. TLR3 and TLR7 levels showed no significant difference between normal and inflammatory sinus mucosal tissue. Conclusion These results suggest that decreased levels of interferons and ISGs in patients with CRS might contribute to impairment of the antiviral innate response in inflammatory sinonasal epithelial cells. Macrolides and glucocorticoids might provide positive effects on the treatment of CRS by upregulating interferon and ISG expression.
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Affiliation(s)
- Jae Woong Hwang
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Ki Jeong Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - In Hak Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Hye Min Han
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Sang Hag Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea.
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Warner SM, Wiehler S, Michi AN, Proud D. Rhinovirus replication and innate immunity in highly differentiated human airway epithelial cells. Respir Res 2019; 20:150. [PMID: 31299975 PMCID: PMC6626354 DOI: 10.1186/s12931-019-1120-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/01/2019] [Indexed: 12/23/2022] Open
Abstract
Background Human rhinovirus (HRV) infections are the primary cause of the common cold and are a major trigger for exacerbations of lower airway diseases, such as asthma and chronic obstructive pulmonary diseases. Although human bronchial epithelial cells (HBE) are the natural host for HRV infections, much of our understanding of how HRV replicates and induces host antiviral responses is based on studies using non-airway cell lines (e.g. HeLa cells). The current study examines the replication cycle of HRV, and host cell responses, in highly differentiated cultures of HBE. Methods Highly differentiated cultures of HBE were exposed to initial infectious doses ranging from 104 to 101 50% tissue culture-infective dose (TCID50) of purified HRV-16, and responses were monitored up to 144 h after infection. Viral genomic RNA and negative strand RNA template levels were monitored, along with levels of type I and II interferons and selected antivirals. Results Regardless of initial infectious dose, relatively constant levels of both genomic and negative strand RNA are generated during replication, with negative strand copy numbers being10,000-fold lower than those of genomic strands. Infections were limited to a small percentage of ciliated cells and did not result in any overt signs of epithelial death. Importantly, regardless of infectious dose, HRV-16 infections were cleared by HBE in the absence of immune cells. Levels of type I and type III interferons (IFNs) varied with initial infectious dose, implying that factors other than levels of double-stranded RNA regulate IFN induction, but the time-course of HRV-16 clearance HBE was the same regardless of levels of IFNs produced. Patterns of antiviral viperin and ISG15 expression suggest they may be generated in an IFN-independent manner during HRV-16 infections. Conclusions These data challenge a number of aspects of dogma generated from studies in HeLa cells and emphasize the importance of appropriate cell context when studying HRV infections.
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Affiliation(s)
- Stephanie M Warner
- Department of Physiology & Pharmacology and Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Shahina Wiehler
- Department of Physiology & Pharmacology and Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Aubrey N Michi
- Department of Physiology & Pharmacology and Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - David Proud
- Department of Physiology & Pharmacology and Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
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36
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Kotenko SV, Rivera A, Parker D, Durbin JE. Type III IFNs: Beyond antiviral protection. Semin Immunol 2019; 43:101303. [PMID: 31771761 PMCID: PMC7141597 DOI: 10.1016/j.smim.2019.101303] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 09/15/2019] [Indexed: 12/29/2022]
Abstract
The unexpected discovery of a novel family of antiviral mediators, type III IFNs or IFN-λs, challenged the widely accepted primacy of type I IFNs in antiviral immunity, and it is now well recognized that the IFN-λ-based antiviral system plays a major role in antiviral protection of epithelial barriers. The recent characterization of previously unknown IFN-λ-mediated activities has prompted further reassessment of the role of type I IFNs in innate and adaptive immune and inflammatory responses. Since type I and type III IFNs are co-produced in response to a variety of stimuli, it is likely that many physiological processes are simultaneously and coordinately regulated by these cytokines in pathological conditions, and likely at steady state, as baseline expression of both IFN types is maintained by microbiota. In this review, we discuss emerging differences in the production and signaling of type I and type III IFNs, and summarize results of recent studies describing the involvement of type III IFNs in anti-bacterial and anti-fungal, as well as antiviral, defenses.
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Affiliation(s)
- Sergei V Kotenko
- Department of Microbiology, Biochemistry and Molecular Genetics, Newark, NJ, 07103, USA; Center for Cell Signaling, Newark, NJ, 07103, USA; Center for Immunity and Inflammation, Rutgers New Jersey Medical School, RBHS, Newark, NJ, 07103, USA.
| | - Amariliz Rivera
- Department of Pediatrics, Newark, NJ, 07103, USA; Center for Immunity and Inflammation, Rutgers New Jersey Medical School, RBHS, Newark, NJ, 07103, USA
| | - Dane Parker
- Department of Pathology, Immunology and Laboratory Medicine, Newark, NJ, 07103, USA; Center for Immunity and Inflammation, Rutgers New Jersey Medical School, RBHS, Newark, NJ, 07103, USA
| | - Joan E Durbin
- Department of Pathology, Immunology and Laboratory Medicine, Newark, NJ, 07103, USA; Center for Immunity and Inflammation, Rutgers New Jersey Medical School, RBHS, Newark, NJ, 07103, USA.
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Burleson JD, Siniard D, Yadagiri VK, Chen X, Weirauch MT, Ruff BP, Brandt EB, Hershey GKK, Ji H. TET1 contributes to allergic airway inflammation and regulates interferon and aryl hydrocarbon receptor signaling pathways in bronchial epithelial cells. Sci Rep 2019; 9:7361. [PMID: 31089182 PMCID: PMC6517446 DOI: 10.1038/s41598-019-43767-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 05/01/2019] [Indexed: 01/10/2023] Open
Abstract
Previous studies have suggested a role for Tet1 in the pathogenesis of childhood asthma. However, how Tet1 contributes to asthma remains unknown. Here we used mice deficient for Tet1 in a well-established model of allergic airway inflammation and demonstrated that loss of Tet1 increased disease severity including airway hyperresponsiveness and lung eosinophilia. Increased expression of Muc5ac, Il13, Il33, Il17a, Egfr, and Tff2 were observed in HDM-challenged Tet1-deficient mice compared to Tet1+/+ littermates. Further, transcriptomic analysis of lung RNA followed by pathway and protein network analysis showed that the IFN signaling pathway was significantly upregulated and the aryl hydrocarbon receptor (AhR) pathway was significantly downregulated in HDM-challenged Tet1-/- mice. This transcriptional regulation of the IFN and AhR pathways by Tet1 was also present in human bronchial epithelial cells at base line and following HDM challenges. Genes in these pathways were further associated with changes in DNA methylation, predicted binding of transcriptional factors with relevant functions in their promoters, and the presence of histone marks generated by histone enzymes that are known to interact with Tet1. Collectively, our data suggest that Tet1 inhibits HDM-induced allergic airway inflammation by direct regulation of the IFN and AhR pathways.
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Affiliation(s)
- J D Burleson
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Dylan Siniard
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Pyrosequencing lab for genomic and epigenomic research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Veda K Yadagiri
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Xiaoting Chen
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Brandy P Ruff
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Eric B Brandt
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Gurjit K Khurana Hershey
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Hong Ji
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. .,Pyrosequencing lab for genomic and epigenomic research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA. .,Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA. .,California National Primate Research Center, Davis, CA, USA.
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Transcriptomic Analysis Reveals Priming of The Host Antiviral Interferon Signaling Pathway by Bronchobini ® Resulting in Balanced Immune Response to Rhinovirus Infection in Mouse Lung Tissue Slices. Int J Mol Sci 2019; 20:ijms20092242. [PMID: 31067687 PMCID: PMC6540047 DOI: 10.3390/ijms20092242] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 12/22/2022] Open
Abstract
Rhinovirus (RV) is the predominant virus causing respiratory tract infections. Bronchobini® is a low dose multi component, multi target preparation used to treat inflammatory respiratory diseases such as the common cold, described to ease severity of symptoms such as cough and viscous mucus production. The aim of the study was to assess the efficacy of Bronchobini® in RV infection and to elucidate its mode of action. Therefore, Bronchobini®’s ingredients (BRO) were assessed in an ex vivo model of RV infection using mouse precision-cut lung slices, an organotypic tissue capable to reflect the host immune response to RV infection. Cytokine profiles were assessed using enzyme-linked immunosorbent assay (ELISA) and mesoscale discovery (MSD). Gene expression analysis was performed using Affymetrix microarrays and ingenuity pathway analysis. BRO treatment resulted in the significant suppression of RV-induced antiviral and pro-inflammatory cytokine release. Transcriptome analysis revealed a multifactorial mode of action of BRO, with a strong inhibition of the RV-induced pro-inflammatory and antiviral host response mediated by nuclear factor kappa B (NFkB) and interferon signaling pathways. Interestingly, this was due to priming of these pathways in the absence of virus. Overall, BRO exerted its beneficial anti-inflammatory effect by priming the antiviral host response resulting in a reduced inflammatory response to RV infection, thereby balancing an otherwise excessive inflammatory response.
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Manley GCA, Parker LC, Zhang Y. Emerging Regulatory Roles of Dual-Specificity Phosphatases in Inflammatory Airway Disease. Int J Mol Sci 2019; 20:E678. [PMID: 30764493 PMCID: PMC6387402 DOI: 10.3390/ijms20030678] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 12/16/2022] Open
Abstract
Inflammatory airway disease, such as asthma and chronic obstructive pulmonary disease (COPD), is a major health burden worldwide. These diseases cause large numbers of deaths each year due to airway obstruction, which is exacerbated by respiratory viral infection. The inflammatory response in the airway is mediated in part through the MAPK pathways: p38, JNK and ERK. These pathways also have roles in interferon production, viral replication, mucus production, and T cell responses, all of which are important processes in inflammatory airway disease. Dual-specificity phosphatases (DUSPs) are known to regulate the MAPKs, and roles for this family of proteins in the pathogenesis of airway disease are emerging. This review summarizes the function of DUSPs in regulation of cytokine expression, mucin production, and viral replication in the airway. The central role of DUSPs in T cell responses, including T cell activation, differentiation, and proliferation, will also be highlighted. In addition, the importance of this protein family in the lung, and the necessity of further investigation into their roles in airway disease, will be discussed.
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Affiliation(s)
- Grace C A Manley
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore.
- Immunology Programme, Life Science Institute, National University of Singapore, Singapore 117597, Singapore.
| | - Lisa C Parker
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield S10 2RX, UK.
| | - Yongliang Zhang
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore.
- Immunology Programme, Life Science Institute, National University of Singapore, Singapore 117597, Singapore.
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40
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Zhu J, Message SD, Mallia P, Kebadze T, Contoli M, Ward CK, Barnathan ES, Mascelli MA, Kon OM, Papi A, Stanciu LA, Edwards MR, Jeffery PK, Johnston SL. Bronchial mucosal IFN-α/β and pattern recognition receptor expression in patients with experimental rhinovirus-induced asthma exacerbations. J Allergy Clin Immunol 2019; 143:114-125.e4. [PMID: 29698627 PMCID: PMC6320262 DOI: 10.1016/j.jaci.2018.04.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 03/12/2018] [Accepted: 04/03/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND The innate immune system senses viral infection through pattern recognition receptors (PRRs), leading to type I interferon production. The role of type I interferon and PPRs in rhinovirus-induced asthma exacerbations in vivo are uncertain. OBJECTIVES We sought to compare bronchial mucosal type I interferon and PRR expression at baseline and after rhinovirus infection in atopic asthmatic patients and control subjects. METHODS Immunohistochemistry was used to detect expression of IFN-α, IFN-β, and the PRRs: Toll-like receptor 3, melanoma differentiation-associated gene 5, and retinoic acid-inducible protein I in bronchial biopsy specimens from 10 atopic asthmatic patients and 15 nonasthmatic nonatopic control subjects at baseline and on day 4 and 6 weeks after rhinovirus infection. RESULTS We observed IFN-α/β deficiency in the bronchial epithelium at 3 time points in asthmatic patients in vivo. Lower epithelial IFN-α/β expression was related to greater viral load, worse airway symptoms, airway hyperresponsiveness, and reductions in lung function during rhinovirus infection. We found lower frequencies of bronchial subepithelial monocytes/macrophages expressing IFN-α/β in asthmatic patients during infection. Interferon deficiency at baseline was not accompanied by deficient PRR expression in asthmatic patients. Both epithelial and subepithelial PRR expression were induced during rhinovirus infection. Rhinovirus infection-increased numbers of subepithelial interferon/PRR-expressing inflammatory cells were related to greater viral load, airway hyperresponsiveness, and reductions in lung function. CONCLUSIONS Bronchial epithelial IFN-α/β expression and numbers of subepithelial IFN-α/β-expressing monocytes/macrophages during infection were both deficient in asthmatic patients. Lower epithelial IFN-α/β expression was associated with adverse clinical outcomes after rhinovirus infection in vivo. Increases in numbers of subepithelial cells expressing interferon/PRRs during infection were also related to greater viral load/illness severity.
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Affiliation(s)
- Jie Zhu
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom
| | - Simon D Message
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Patrick Mallia
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Tatiana Kebadze
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom
| | - Marco Contoli
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom; Research Centre on Asthma and COPD, University of Ferrara, Ferrara, Italy
| | | | | | | | - Onn M Kon
- Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Alberto Papi
- Research Centre on Asthma and COPD, University of Ferrara, Ferrara, Italy
| | - Luminita A Stanciu
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom
| | - Michael R Edwards
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom
| | - Peter K Jeffery
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom
| | - Sebastian L Johnston
- Airway Disease Infection, National Heart and Lung Institute, Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom.
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Lasfar A, Zloza A, Silk AW, Lee LY, Cohen-Solal KA. Interferon Lambda: Toward a Dual Role in Cancer. J Interferon Cytokine Res 2019; 39:22-29. [DOI: 10.1089/jir.2018.0046] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Ahmed Lasfar
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Andrew Zloza
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Ann W. Silk
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Leonard Y. Lee
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
- Robert Wood Johnson University Hospital, New Brunswick, New Jersey
| | - Karine A. Cohen-Solal
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
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42
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Fukutani KF, Nascimento-Carvalho CM, Bouzas ML, Oliveira JR, Barral A, Dierckx T, Khouri R, Nakaya HI, Andrade BB, Van Weyenbergh J, de Oliveira CI. In situ Immune Signatures and Microbial Load at the Nasopharyngeal Interface in Children With Acute Respiratory Infection. Front Microbiol 2018; 9:2475. [PMID: 30473680 PMCID: PMC6238668 DOI: 10.3389/fmicb.2018.02475] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/27/2018] [Indexed: 12/13/2022] Open
Abstract
Acute respiratory infection (ARI) is the most frequent cause for hospitalization in infants and young children. Using multiplexed nCounter technology to digitally quantify 600 human mRNAs in parallel with 14 virus- and 5 bacterium-specific RNAs, we characterized viral and bacterial presence in nasopharyngeal aspirates (NPA) of 58 children with ARI and determined the corresponding in situ immune profiles. NPA contained different groups of organisms and these were classified into bacterial (n = 27), viral (n = 5), codetection [containing both viral and bacterial transcripts (n = 21), or indeterminate intermediate where microbial load is below threshold (n = 5)]. We then identified differentially expressed immune transcripts (DEITs) comparing NPAs from symptomatic children vs. healthy controls, and comparing children presenting NPAs with detectable microbial load vs. indeterminate. We observed a strong innate immune response in NPAs, due to the presence of evolutionarily conserved type I Interferon (IFN)-stimulated genes (ISG), which was correlated with total bacterial and/or viral load. In comparison with indeterminate NPAs, adaptive immunity transcripts discriminated among viral, bacterial, and codetected microbial profiles. In viral NPAs, B cell transcripts were significantly enriched among DEITs, while only type III IFN was correlated with viral load. In bacterial NPAs, myeloid cells and coinhibitory transcripts were enriched and significantly correlated with bacterial load. In conclusion, digital nCounter transcriptomics provide a microbial and immunological in situ “snapshot” of the nasopharyngeal interface in children with ARI. This enabled discrimination among viral, bacterial, codetection, and indeterminate transcripts in the samples using non-invasive sampling.
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Affiliation(s)
| | - Cristiana M Nascimento-Carvalho
- School of Medicine, Federal University of Bahia, Salvador, Brazil.,Department of Pediatrics, School of Medicine, Federal University of Bahia, Salvador, Brazil
| | - Maiara L Bouzas
- School of Medicine, Federal University of Bahia, Salvador, Brazil
| | | | - Aldina Barral
- Instituto Gonçalo Moniz-FIOCRUZ, Salvador, Brazil.,School of Medicine, Federal University of Bahia, Salvador, Brazil
| | - Tim Dierckx
- Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Ricardo Khouri
- Instituto Gonçalo Moniz-FIOCRUZ, Salvador, Brazil.,School of Medicine, Federal University of Bahia, Salvador, Brazil
| | - Helder I Nakaya
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Bruno B Andrade
- Instituto Gonçalo Moniz-FIOCRUZ, Salvador, Brazil.,Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Fundação José Silveira, Salvador, Brazil
| | - Johan Van Weyenbergh
- Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Camila I de Oliveira
- Instituto Gonçalo Moniz-FIOCRUZ, Salvador, Brazil.,School of Medicine, Federal University of Bahia, Salvador, Brazil
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Strand-Specific Dual RNA Sequencing of Bronchial Epithelial Cells Infected with Influenza A/H3N2 Viruses Reveals Splicing of Gene Segment 6 and Novel Host-Virus Interactions. J Virol 2018; 92:JVI.00518-18. [PMID: 29976658 DOI: 10.1128/jvi.00518-18] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/24/2018] [Indexed: 02/08/2023] Open
Abstract
Host-influenza virus interplay at the transcript level has been extensively characterized in epithelial cells. Yet, there are no studies that simultaneously characterize human host and influenza A virus (IAV) genomes. We infected human bronchial epithelial BEAS-2B cells with two seasonal IAV/H3N2 strains, Brisbane/10/07 and Perth/16/09 (reference strains for past vaccine seasons) and the well-characterized laboratory strain Udorn/307/72. Strand-specific RNA sequencing (RNA-seq) of the infected BEAS-2B cells allowed for simultaneous analysis of host and viral transcriptomes, in addition to pathogen genomes, to reveal changes in mRNA expression and alternative splicing (AS). In general, patterns of global and immune gene expression induced by the three IAVs were mostly shared. However, AS of host transcripts and small nuclear RNAs differed between the seasonal and laboratory strains. Analysis of viral transcriptomes showed deletions of the polymerase components (defective interfering-like RNAs) within the genome. Surprisingly, we found that the neuraminidase gene undergoes AS and that the splicing event differs between seasonal and laboratory strains. Our findings reveal novel elements of the host-virus interaction and highlight the importance of RNA-seq in identifying molecular changes at the genome level that may contribute to shaping RNA-based innate immunity.IMPORTANCE The use of massively parallel RNA sequencing (RNA-seq) has revealed insights into human and pathogen genomes and their evolution. Dual RNA-seq allows simultaneous dissection of host and pathogen genomes and strand-specific RNA-seq provides information about the polarity of the RNA. This is important in the case of negative-strand RNA viruses like influenza virus, which generate positive (complementary and mRNA) and negative-strand RNAs (genome) that differ in their potential to trigger innate immunity. Here, we characterize interactions between human bronchial epithelial cells and three influenza A/H3N2 strains using strand-specific dual RNA-seq. We focused on this subtype because of its epidemiological importance in causing significant morbidity and mortality during influenza epidemics. We report novel elements that differ between seasonal and laboratory strains highlighting the complexity of the host-virus interplay at the RNA level.
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44
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Denney L, Ho LP. The role of respiratory epithelium in host defence against influenza virus infection. Biomed J 2018; 41:218-233. [PMID: 30348265 PMCID: PMC6197993 DOI: 10.1016/j.bj.2018.08.004] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 12/18/2022] Open
Abstract
The respiratory epithelium is the major interface between the environment and the host. Sophisticated barrier, sensing, anti-microbial and immune regulatory mechanisms have evolved to help maintain homeostasis and to defend the lung against foreign substances and pathogens. During influenza virus infection, these specialised structural cells and populations of resident immune cells come together to mount the first response to the virus, one which would play a significant role in the immediate and long term outcome of the infection. In this review, we focus on the immune defence machinery of the respiratory epithelium and briefly explore how it repairs and regenerates after infection.
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Affiliation(s)
- Laura Denney
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Ling-Pei Ho
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK.
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45
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Kalinowski A, Galen BT, Ueki IF, Sun Y, Mulenos A, Osafo-Addo A, Clark B, Joerns J, Liu W, Nadel JA, Cruz CSD, Koff JL. Respiratory syncytial virus activates epidermal growth factor receptor to suppress interferon regulatory factor 1-dependent interferon-lambda and antiviral defense in airway epithelium. Mucosal Immunol 2018; 11:958-967. [PMID: 29411775 PMCID: PMC6431552 DOI: 10.1038/mi.2017.120] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 12/17/2017] [Indexed: 02/04/2023]
Abstract
Respiratory syncytial virus (RSV) persists as a significant human pathogen that continues to contribute to morbidity and mortality. In children, RSV is the leading cause of lower respiratory tract infections, and in adults RSV causes pneumonia and contributes to exacerbations of chronic lung diseases. RSV induces airway epithelial inflammation by activation of the epidermal growth factor receptor (EGFR), a tyrosine kinase receptor. Recently, EGFR inhibition was shown to decrease RSV infection, but the mechanism(s) for this effect are not known. Interferon (IFN) signaling is critical for innate antiviral responses, and recent experiments have implicated IFN-λ (lambda), a type III IFN, as the most significant IFN for mucosal antiviral immune responses to RSV infection. However, a role for RSV-induced EGFR activation to suppress airway epithelial antiviral immunity has not been explored. Here, we show that RSV-induced EGFR activation suppresses IFN regulatory factor (IRF) 1-induced IFN-λ production and increased viral infection, and we implicate RSV F protein to mediate this effect. EGFR inhibition, during viral infection, augmented IRF1, IFN-λ, and decreased RSV titers. These results suggest a mechanism for EGFR inhibition to suppress RSV by activation of endogenous epithelial antiviral defenses, which may be a potential target for novel therapeutics.
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Affiliation(s)
- April Kalinowski
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Benjamin T. Galen
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Iris F. Ueki
- Division of Pulmonary, Critical Care, Allergy &
Sleep Medicine, University of California San Francisco
| | - Ying Sun
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Arielle Mulenos
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Awo Osafo-Addo
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Brian Clark
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - John Joerns
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Wei Liu
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
| | - Jay A. Nadel
- Division of Pulmonary, Critical Care, Allergy &
Sleep Medicine, University of California San Francisco
| | - Charles S. Dela Cruz
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University,Department of Microbial Pathogenesis, Yale
University
| | - Jonathan L. Koff
- Section of Pulmonary, Critical Care, & Sleep Medicine,
Yale University
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46
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Interferon lambda receptor 1 (IFNL1R) transcript is highly expressed in rhinovirus bronchiolitis and correlates with disease severity. J Clin Virol 2018; 102:101-109. [PMID: 29549834 DOI: 10.1016/j.jcv.2018.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/23/2018] [Accepted: 03/09/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND As the expression of type III IFN receptor is restricted to the mucosal surfaces, its evaluation could be crucial to characterize the role of IFNλs during bronchiolitis. OBJECTIVES This study was designed to investigate airway type III IFN receptor (IFNLR1/IL10RB) expression during respiratory syncytial virus (RSV) or human rhinovirus (HRV) bronchiolitis. STUDY DESIGN Seventy-one 1-6 month old infants hospitalized with their first episode of acute RSV or HRV bronchiolitis were selected for this study. Expression of IFNLR1, IL10RB and IFN-stimulated genes (ISGs) MxA and ISG56 in cells of nasopharyngeal washings taken within the first 48 h of admission were determined by a real-time hydrolysis probe RT-PCR assay. The ability of types I and III IFNs to induce the expression of both IFNLR1 and IL10RB in vitro was also evaluated. RESULTS Airway IFNLR1 transcript levels were significantly higher in HRV bronchiolitis infants compared to those with RSV bronchiolitis. No differences were recorded for IL10RB-mRNA between RSV or HRV infection. IFNLR1 mRNA levels increased significantly in infants infected with the C species of HRV and in those with a higher clinical score index and with an eosinophil count >3%. There were no correlations in vivo between type III IFN receptors and those of ISGs and neither IFNLR1 nor IL10RB were induced in vitro by IFNs. CONCLUSIONS These results suggest that IFNLR1 are increased in HRV-infected infants with more severe bronchiolitis and blood eosinophilia and in those infected with the HRVC species.
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47
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Rikin S, Jia H, Vargas CY, Castellanos de Belliard Y, Reed C, LaRussa P, Larson EL, Saiman L, Stockwell MS. Assessment of temporally-related acute respiratory illness following influenza vaccination. Vaccine 2018. [PMID: 29525279 PMCID: PMC7115556 DOI: 10.1016/j.vaccine.2018.02.105] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We investigated risk of acute respiratory illness post-influenza vaccination. Post-vaccination risk of non-influenza respiratory pathogen was higher in children. Patient perceptions of illness following influenza vaccination may be supported. Assessments of potential mechanisms for findings are needed.
Background A barrier to influenza vaccination is the misperception that the inactivated vaccine can cause influenza. Previous studies have investigated the risk of acute respiratory illness (ARI) after influenza vaccination with conflicting results. We assessed whether there is an increased rate of laboratory-confirmed ARI in post-influenza vaccination periods. Methods We conducted a cohort sub-analysis of children and adults in the MoSAIC community surveillance study from 2013 to 2016. Influenza vaccination was confirmed through city or hospital registries. Cases of ARI were ascertained by twice-weekly text messages to household to identify members with ARI symptoms. Nasal swabs were obtained from ill participants and analyzed for respiratory pathogens using multiplex PCR. The primary outcome measure was the hazard ratio of laboratory-confirmed ARI in individuals post-vaccination compared to other time periods during three influenza seasons. Results Of the 999 participants, 68.8% were children, 30.2% were adults. Each study season, approximately half received influenza vaccine and one third experienced ≥1 ARI. The hazard of influenza in individuals during the 14-day post-vaccination period was similar to unvaccinated individuals during the same period (HR 0.96, 95% CI [0.60, 1.52]). The hazard of non-influenza respiratory pathogens was higher during the same period (HR 1.65, 95% CI [1.14, 2.38]); when stratified by age the hazard remained higher for children (HR 1·71, 95% CI [1.16, 2.53]) but not for adults (HR 0.88, 95% CI [0.21, 3.69]). Conclusion Among children there was an increase in the hazard of ARI caused by non-influenza respiratory pathogens post-influenza vaccination compared to unvaccinated children during the same period. Potential mechanisms for this association warrant further investigation. Future research could investigate whether medical decision-making surrounding influenza vaccination may be improved by acknowledging patient experiences, counseling regarding different types of ARI, and correcting the misperception that all ARI occurring after vaccination are caused by influenza.
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Affiliation(s)
- Sharon Rikin
- Department of Medicine, Columbia University, New York, NY, USA
| | - Haomiao Jia
- School of Nursing, Columbia University, New York, NY, USA; Mailman School of Public Health, Columbia University, New York, NY, USA
| | | | | | - Carrie Reed
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Philip LaRussa
- Department of Pediatrics, Columbia University, New York, NY, USA
| | - Elaine L Larson
- School of Nursing, Columbia University, New York, NY, USA; Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Lisa Saiman
- Department of Pediatrics, Columbia University, New York, NY, USA; NewYork-Presbyterian Hospital, New York, NY, USA
| | - Melissa S Stockwell
- Mailman School of Public Health, Columbia University, New York, NY, USA; Department of Pediatrics, Columbia University, New York, NY, USA; NewYork-Presbyterian Hospital, New York, NY, USA.
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48
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Gao X, Yuan YY, Lin QF, Xu JC, Wang WQ, Qiao YH, Kang DY, Bai D, Xin F, Huang SS, Qiu SW, Guan LP, Su Y, Wang GJ, Han MY, Jiang Y, Liu HK, Dai P. Mutation of IFNLR1, an interferon lambda receptor 1, is associated with autosomal-dominant non-syndromic hearing loss. J Med Genet 2018; 55:298-306. [PMID: 29453195 PMCID: PMC5931241 DOI: 10.1136/jmedgenet-2017-104954] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/28/2017] [Accepted: 12/11/2017] [Indexed: 11/04/2022]
Abstract
Background Hereditary sensorineural hearing loss is a genetically heterogeneous disorder. Objectives This study was designed to explore the genetic etiology of deafness in a large Chinese family with autosomal dominant, nonsyndromic, progressive sensorineural hearing loss (ADNSHL). Methods Whole exome sequencing and linkage analysis were performed to identify pathogenic mutation. Inner ear expression of Ifnlr1 was investigated by immunostaining in mice. ifnlr1 Morpholino knockdown Zebrafish were constructed to explore the deafness mechanism. Results We identified a cosegregating heterozygous missense mutation, c.296G>A (p.Arg99His) in the gene encoding interferon lambda receptor 1 (IFNLR1) - a protein that functions in the Jak/ STAT pathway- are associated with ADNSHL Morpholino knockdown of ifnlr1 leads to a significant decrease in hair cells and non-inflation of the swim bladder in late-stage zebrafish, which can be reversed by injection with normal Zebrafish ifnlr1 mRNA. Knockdown of ifnlr1 in zebrafish causes significant upregulation of cytokine receptor family member b4 (interleukin-10r2), jak1, tyrosine kinase 2, stat3, and stat5b in the Jak1/STAT3 pathway at the mRNA level. ConclusionIFNLR1 function is required in the auditory system and that IFNLR1 mutations are associated with ADNSHL. To the best of our knowledge, this is the first study implicating an interferon lambda receptor in auditory function.
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Affiliation(s)
- Xue Gao
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China.,Department of Otolaryngology, The General Hospital of the PLA Rocket Force, Beijing, China
| | - Yong-Yi Yuan
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
| | - Qiong-Fen Lin
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Jin-Cao Xu
- Department of Otolaryngology, The General Hospital of the PLA Rocket Force, Beijing, China
| | - Wei-Qian Wang
- Department of Otolaryngology, The General Hospital of the PLA Rocket Force, Beijing, China
| | - Yue-Hua Qiao
- Department of Audiology and Balance Science, Xuzhou Medical University, Xuzhou, China
| | - Dong-Yang Kang
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
| | - Dan Bai
- Department of Otolaryngology, Xi'an Medical College, Xi'an, China
| | - Feng Xin
- Department of Otolaryngology, Head and Neck Surgery, Shanxi Medical University, Taiyuan, China
| | - Sha-Sha Huang
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
| | - Shi-Wei Qiu
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China.,Department of Audiology and Balance Science, Xuzhou Medical University, Xuzhou, China
| | - Li-Ping Guan
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Yu Su
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
| | - Guo-Jian Wang
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
| | - Ming-Yu Han
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
| | - Yi Jiang
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China.,Department of Otolaryngology, Fujian Medical University ShengLi Clinical College, Fujian Provincial Hospital, Fuzhou, China
| | - Han-Kui Liu
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Pu Dai
- Department of Otolaryngology, Head and Neck Surgery, PLA General Hospital, Beijing, China
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49
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Moskwa S, Piotrowski W, Marczak J, Pawełczyk M, Lewandowska-Polak A, Jarzębska M, Brauncajs M, Głobińska A, Górski P, Papadopoulos NG, Edwards MR, Johnston SL, Kowalski ML. Innate Immune Response to Viral Infections in Primary Bronchial Epithelial Cells is Modified by the Atopic Status of Asthmatic Patients. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2018; 10:144-154. [PMID: 29411555 PMCID: PMC5809763 DOI: 10.4168/aair.2018.10.2.144] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 09/10/2017] [Accepted: 09/24/2017] [Indexed: 12/18/2022]
Abstract
Purpose In order to gain an insight into determinants of reported variability in immune responses to respiratory viruses in human bronchial epithelial cells (HBECs) from asthmatics, the responses of HBEC to viral infections were evaluated in HBECs from phenotypically heterogeneous groups of asthmatics and in healthy controls. Methods HBECs were obtained during bronchoscopy from 10 patients with asthma (6 atopic and 4 non-atopic) and from healthy controls (n=9) and grown as undifferentiated cultures. HBECs were infected with parainfluenza virus (PIV)-3 (MOI 0.1) and rhinovirus (RV)-1B (MOI 0.1), or treated with medium alone. The cell supernatants were harvested at 8, 24, and 48 hours. IFN-α, CXCL10 (IP-10), and RANTES (CCL5) were analyzed by using Cytometric Bead Array (CBA), and interferon (IFN)-β and IFN-λ1 by ELISA. Gene expression of IFNs, chemokines, and IFN-regulatory factors (IRF-3 and IRF-7) was determined by using quantitative PCR. Results PIV3 and RV1B infections increased IFN-λ1 mRNA expression in HBECs from asthmatics and healthy controls to a similar extent, and virus-induced IFN-λ1 expression correlated positively with IRF-7 expression. Following PIV3 infection, IP-10 protein release and mRNA expression were significantly higher in asthmatics compared to healthy controls (median 36.03-fold). No differences in the release or expression of RANTES, IFN-λ1 protein and mRNA, or IFN-α and IFN-β mRNA between asthmatics and healthy controls were observed. However, when asthmatics were divided according to their atopic status, HBECs from atopic asthmatics (n=6) generated significantly more IFN-λ1 protein and demonstrated higher IFN-α, IFN-β, and IRF-7 mRNA expressions in response to PIV3 compared to non-atopic asthmatics (n=4) and healthy controls (n=9). In response to RV1B infection, IFN-β mRNA expression was lower (12.39-fold at 24 hours and 19.37-fold at 48 hours) in non-atopic asthmatics compared to atopic asthmatics. Conclusions The immune response of HBECs to virus infections may not be deficient in asthmatics, but seems to be modified by atopic status.
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Affiliation(s)
- Sylwia Moskwa
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland.,Department of Microbiology and Laboratory Medical Immunology, Medical University of Lodz, Lodz, Poland
| | - Wojciech Piotrowski
- Department of Pneumonology and Allergy, Medical University of Lodz, Lodz, Poland
| | - Jerzy Marczak
- Department of Pneumonology and Allergy, Medical University of Lodz, Lodz, Poland
| | - Małgorzata Pawełczyk
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Anna Lewandowska-Polak
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland.,Department of Rheumatology, Medical University of Lodz, Lodz, Poland
| | - Marzanna Jarzębska
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Małgorzata Brauncajs
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Anna Głobińska
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland
| | - Paweł Górski
- Department of Pneumonology and Allergy, Medical University of Lodz, Lodz, Poland
| | - Nikolaos G Papadopoulos
- Allergy Research Centre, 2nd Pediatric Clinic, National Kapodistrian, University of Athens, Athens, Greece
| | - Michael R Edwards
- National Heart and Lung Institute, Imperial College London, London, UK; Asthma UK Centre in Allergic Mechanisms of Asthma
| | - Sebastian L Johnston
- National Heart and Lung Institute, Imperial College London, London, UK; Asthma UK Centre in Allergic Mechanisms of Asthma
| | - Marek L Kowalski
- Department of Immunology, Rheumatology and Allergy; Healthy Ageing Research Centre, Medical University of Lodz, Lodz, Poland.
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50
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Edwards MR, Walton RP, Jackson DJ, Feleszko W, Skevaki C, Jartti T, Makrinoti H, Nikonova A, Shilovskiy IP, Schwarze J, Johnston SL, Khaitov MR. The potential of anti-infectives and immunomodulators as therapies for asthma and asthma exacerbations. Allergy 2018; 73:50-63. [PMID: 28722755 PMCID: PMC7159495 DOI: 10.1111/all.13257] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2017] [Indexed: 12/30/2022]
Abstract
Asthma is responsible for approximately 25,000 deaths annually in Europe despite available medicines that maintain asthma control and reduce asthma exacerbations. Better treatments are urgently needed for the control of chronic asthma and reduction in asthma exacerbations, the major cause of asthma mortality. Much research spanning >20 years shows a strong association between microorganisms including pathogens in asthma onset, severity and exacerbation, yet with the exception of antibiotics, few treatments are available that specifically target the offending pathogens. Recent insights into the microbiome suggest that modulating commensal organisms within the gut or lung may also be a possible way to treat/prevent asthma. The European Academy of Allergy & Clinical Immunology Task Force on Anti-infectives in Asthma was initiated to investigate the potential of anti-infectives and immunomodulators in asthma. This review provides a concise summary of the current literature and aimed to identify and address key questions that concern the use of anti-infectives and both microbe- and host-based immunomodulators and their feasibility for use in asthma.
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Affiliation(s)
- M. R. Edwards
- Airway Disease Infection Section National Heart Lung Institute Imperial College London London UK
- MRC and Asthma UK Centre for Allergic Mechanisms of Asthma London UK
| | - R. P. Walton
- Airway Disease Infection Section National Heart Lung Institute Imperial College London London UK
- MRC and Asthma UK Centre for Allergic Mechanisms of Asthma London UK
| | - D. J. Jackson
- Airway Disease Infection Section National Heart Lung Institute Imperial College London London UK
- MRC and Asthma UK Centre for Allergic Mechanisms of Asthma London UK
- Division of Asthma, Allergy & Lung Biology King's College London & Guy's and St Thomas' NHS Trust London UK
| | - W. Feleszko
- Department of Pediatric Respiratory Diseases and Allergy The Medical University of Warsaw Warsaw Poland
| | - C. Skevaki
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics Philipps University Marburg & University Hospital Giessen Marburg Germany
| | - T. Jartti
- The Department of Pediatrics Turku University Hospital Turku Finland
| | - H. Makrinoti
- Airway Disease Infection Section National Heart Lung Institute Imperial College London London UK
- MRC and Asthma UK Centre for Allergic Mechanisms of Asthma London UK
| | - A. Nikonova
- National Research Center Institute of Immunology of Federal Medicobiological Agency Moscow Russia
- Mechnikov Research Institute of Vaccines and Sera Moscow Russia
| | - I. P. Shilovskiy
- National Research Center Institute of Immunology of Federal Medicobiological Agency Moscow Russia
| | - J. Schwarze
- Centre for Inflammation Research University of Edinburgh The Queens Medical Research Institute Edinburgh Edinburgh UK
| | - S. L. Johnston
- Airway Disease Infection Section National Heart Lung Institute Imperial College London London UK
- MRC and Asthma UK Centre for Allergic Mechanisms of Asthma London UK
| | - M. R. Khaitov
- National Research Center Institute of Immunology of Federal Medicobiological Agency Moscow Russia
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