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Chappin K, Besteman SB, Hennus MP, Wildenbeest JG, Mokry M, Bont LJ, van der Vlist M, Calis JJA. Airway and Blood Monocyte Transcriptomic Profiling Reveals an Antiviral Phenotype in Infants With Severe Respiratory Syncytial Virus Infection. J Infect Dis 2024; 229:S100-S111. [PMID: 37941411 DOI: 10.1093/infdis/jiad487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) infection is the primary cause of lower respiratory tract infections in children <5 years of age. Monocytes, especially in the respiratory tract, are suggested to contribute to RSV pathology, but their role is incompletely understood. With transcriptomic profiling of blood and airway monocytes, we describe the role of monocytes in severe RSV infection. METHODS Tracheobronchial aspirates and blood samples were collected from control patients (n = 9) and those infected with RSV (n = 14) who were admitted to the pediatric intensive care unit. Monocytes (CD14+) were sorted and analyzed by RNA sequencing for transcriptomic profiling. RESULTS Peripheral blood and airway monocytes of patients with RSV demonstrated increased expression of antiviral and interferon-responsive genes as compared with controls. Cytokine signaling showed a shared response between blood and airway monocytes while displaying responses that were more pronounced according to the tissue of origin. Airway monocytes upregulated additional genes related to migration and inflammation. CONCLUSIONS We found that the RSV-induced interferon response extends from the airways to the peripheral blood. Moreover, RSV induces a migration-promoting transcriptional program in monocytes. Unraveling the monocytic response and its role in the immune response to RSV infection could help the development of therapeutics to prevent severe disease.
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Affiliation(s)
- K Chappin
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht University
| | | | - M P Hennus
- Department of Paediatric Intensive Care, Wilhelmina Children's Hospital, University Medical Centre Utrecht
| | | | - M Mokry
- Experimental Cardiology, Department of Heart and Lungs, University Medical Centre Utrecht, the Netherlands
| | - L J Bont
- Department of Paediatric Infectious Diseases and Immunology
| | - M van der Vlist
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht University
| | - J J A Calis
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht University
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2
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Díaz FE, McGill JL. Modeling Human Respiratory Syncytial Virus (RSV) Infection: Recent Contributions and Future Directions Using the Calf Model of Bovine RSV Disease. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1180-1186. [PMID: 37782855 PMCID: PMC10558079 DOI: 10.4049/jimmunol.2300260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 05/24/2023] [Indexed: 10/04/2023]
Abstract
The human orthopneumovirus (human respiratory syncytial virus [RSV]) is a leading cause of respiratory disease in children worldwide and a significant cause of infant mortality in low- and middle-income countries. The natural immune response to the virus has a preponderant role in disease progression, with a rapid neutrophil infiltration and dysbalanced T cell response in the lungs associated with severe disease in infants. The development of preventive interventions against human RSV has been difficult partly due to the need to use animal models that only partially recapitulate the immune response as well as the disease progression seen in human infants. In this brief review, we discuss the contributions of the calf model of RSV infection to understanding immunity to RSV and in developing vaccine and drug candidates, focusing on recent research areas. We propose that the bovine model of RSV infection is a valuable alternative for assessing the translational potential of interventions aimed at the human population.
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Affiliation(s)
- Fabián E. Díaz
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, United States
| | - Jodi L. McGill
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, United States
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3
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Korkmaz FT, Traber KE. Innate immune responses in pneumonia. Pneumonia (Nathan) 2023; 15:4. [PMID: 36829255 PMCID: PMC9957695 DOI: 10.1186/s41479-023-00106-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 01/05/2023] [Indexed: 02/26/2023] Open
Abstract
The lungs are an immunologically unique environment; they are exposed to innumerable pathogens and particulate matter daily. Appropriate clearance of pathogens and response to pollutants is required to prevent overwhelming infection, while preventing tissue damage and maintaining efficient gas exchange. Broadly, the innate immune system is the collection of immediate, intrinsic immune responses to pathogen or tissue injury. In this review, we will examine the innate immune responses of the lung, with a particular focus on their role in pneumonia. We will discuss the anatomic barriers and antimicrobial proteins of the lung, pathogen and injury recognition, and the role of leukocytes (macrophages, neutrophils, and innate lymphocytes) and lung stromal cells in innate immunity. Throughout the review, we will focus on new findings in innate immunity as well as features that are unique to the lung.
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Affiliation(s)
- Filiz T Korkmaz
- Department of Medicine, Division of Immunology & Infectious Disease, University of Massachusetts, Worcester, MA, USA
- Pulmonary Center, Boston University School of Medicine, Boston, MA, USA
| | - Katrina E Traber
- Pulmonary Center, Boston University School of Medicine, Boston, MA, USA.
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
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4
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Macedo-da-Silva J, Rosa-Fernandes L, Gomes VDM, Santiago VF, Santos DM, Molnar CMS, Barboza BR, de Souza EE, Marques RF, Boscardin SB, Durigon EL, Marinho CRF, Wrenger C, Marie SKN, Palmisano G. Protein Arginylation Is Regulated during SARS-CoV-2 Infection. Viruses 2023; 15:v15020290. [PMID: 36851505 PMCID: PMC9964439 DOI: 10.3390/v15020290] [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: 10/26/2022] [Revised: 01/09/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND In 2019, the world witnessed the onset of an unprecedented pandemic. By February 2022, the infection by SARS-CoV-2 has already been responsible for the death of more than 5 million people worldwide. Recently, we and other groups discovered that SARS-CoV-2 infection induces ER stress and activation of the unfolded protein response (UPR) pathway. Degradation of misfolded/unfolded proteins is an essential element of proteostasis and occurs mainly in lysosomes or proteasomes. The N-terminal arginylation of proteins is characterized as an inducer of ubiquitination and proteasomal degradation by the N-degron pathway. RESULTS The role of protein arginylation during SARS-CoV-2 infection was elucidated. Protein arginylation was studied in Vero CCL-81, macrophage-like THP1, and Calu-3 cells infected at different times. A reanalysis of in vivo and in vitro public omics data combined with immunoblotting was performed to measure levels of arginyl-tRNA-protein transferase (ATE1) and its substrates. Dysregulation of the N-degron pathway was specifically identified during coronavirus infections compared to other respiratory viruses. We demonstrated that during SARS-CoV-2 infection, there is an increase in ATE1 expression in Calu-3 and Vero CCL-81 cells. On the other hand, infected macrophages showed no enzyme regulation. ATE1 and protein arginylation was variant-dependent, as shown using P1 and P2 viral variants and HEK 293T cells transfection with the spike protein and receptor-binding domains (RBD). In addition, we report that ATE1 inhibitors, tannic acid and merbromine (MER) reduce viral load. This finding was confirmed in ATE1-silenced cells. CONCLUSIONS We demonstrate that ATE1 is increased during SARS-CoV-2 infection and its inhibition has potential therapeutic value.
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Affiliation(s)
- Janaina Macedo-da-Silva
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Livia Rosa-Fernandes
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
- Laboratory of Experimental Immunoparasitology, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Vinicius de Morais Gomes
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Veronica Feijoli Santiago
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Deivid Martins Santos
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | | | - Bruno Rafael Barboza
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Edmarcia Elisa de Souza
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences at the University of São Paulo, São Paulo 05508-000, Brazil
| | - Rodolfo Ferreira Marques
- Laboratory of Antigen Targeting for Dendritic Cells, Department of Parasitology, Institute of Biomedical Sciences at the University of São Paulo, São Paulo 05508-000, Brazil
| | - Silvia Beatriz Boscardin
- Laboratory of Antigen Targeting for Dendritic Cells, Department of Parasitology, Institute of Biomedical Sciences at the University of São Paulo, São Paulo 05508-000, Brazil
| | - Edison Luiz Durigon
- Laboratory of Clinical and Molecular Virology, Department of Microbiology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Claudio Romero Farias Marinho
- Laboratory of Experimental Immunoparasitology, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
| | - Carsten Wrenger
- Unit for Drug Discovery, Department of Parasitology, Institute of Biomedical Sciences at the University of São Paulo, São Paulo 05508-000, Brazil
| | - Suely Kazue Nagahashi Marie
- Laboratory of Molecular and Cellular Biology (LIM 15), Department of Neurology, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Giuseppe Palmisano
- GlycoProteomics Laboratory, Department of Parasitology, ICB, University of São Paulo, São Paulo 05508-000, Brazil
- School of Natural Sciences, Macquarie University, Sydney 2109, Australia
- Correspondence: or ; Tel.: +55-11-99920-8662
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5
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Nannapaneni P, Sundh J, Prast-Nielsen S, Rhedin S, Örtqvist Å, Naucler P, Henriques-Normark B. Metatranscriptomics of Nasopharyngeal Microbiota and Host Distinguish between Pneumonia and Health. Am J Respir Crit Care Med 2022; 206:1564-1567. [PMID: 35947760 PMCID: PMC9757092 DOI: 10.1164/rccm.202203-0463le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
| | | | | | - Samuel Rhedin
- Karolinska InstitutetStockholm, Sweden,Sachs Children and Youth HospitalStockholm, Sweden
| | | | | | - Birgitta Henriques-Normark
- Karolinska InstitutetStockholm, Sweden,Karolinska University Hospital, SolnaStockholm, Sweden,Corresponding author (e-mail: )
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6
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Salcher S, Sturm G, Horvath L, Untergasser G, Kuempers C, Fotakis G, Panizzolo E, Martowicz A, Trebo M, Pall G, Gamerith G, Sykora M, Augustin F, Schmitz K, Finotello F, Rieder D, Perner S, Sopper S, Wolf D, Pircher A, Trajanoski Z. High-resolution single-cell atlas reveals diversity and plasticity of tissue-resident neutrophils in non-small cell lung cancer. Cancer Cell 2022; 40:1503-1520.e8. [PMID: 36368318 PMCID: PMC9767679 DOI: 10.1016/j.ccell.2022.10.008] [Citation(s) in RCA: 93] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/26/2022] [Accepted: 10/06/2022] [Indexed: 11/12/2022]
Abstract
Non-small cell lung cancer (NSCLC) is characterized by molecular heterogeneity with diverse immune cell infiltration patterns, which has been linked to therapy sensitivity and resistance. However, full understanding of how immune cell phenotypes vary across different patient subgroups is lacking. Here, we dissect the NSCLC tumor microenvironment at high resolution by integrating 1,283,972 single cells from 556 samples and 318 patients across 29 datasets, including our dataset capturing cells with low mRNA content. We stratify patients into immune-deserted, B cell, T cell, and myeloid cell subtypes. Using bulk samples with genomic and clinical information, we identify cellular components associated with tumor histology and genotypes. We then focus on the analysis of tissue-resident neutrophils (TRNs) and uncover distinct subpopulations that acquire new functional properties in the tissue microenvironment, providing evidence for the plasticity of TRNs. Finally, we show that a TRN-derived gene signature is associated with anti-programmed cell death ligand 1 (PD-L1) treatment failure.
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Affiliation(s)
- Stefan Salcher
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Gregor Sturm
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Lena Horvath
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Gerold Untergasser
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Christiane Kuempers
- Institute of Pathology, University of Luebeck and University Hospital Schleswig-Holstein, Campus Luebeck, Luebeck, Germany
| | - Georgios Fotakis
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Elisa Panizzolo
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Agnieszka Martowicz
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria; Tyrolpath Obrist Brunhuber GmbH, Zams, Austria
| | - Manuel Trebo
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Georg Pall
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Gabriele Gamerith
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Martina Sykora
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Florian Augustin
- Department of Visceral, Transplant and Thoracic Surgery, Medical University Innsbruck, Innsbruck, Austria
| | - Katja Schmitz
- Tyrolpath Obrist Brunhuber GmbH, Zams, Austria; INNPATH GmbH, Institute of Pathology, Innsbruck, Austria
| | - Francesca Finotello
- Institute of Molecular Biology, University of Innsbruck, Innsbruck, Austria; Digital Science Center, University of Innsbruck, Innsbruck, Austria
| | - Dietmar Rieder
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Sven Perner
- Institute of Pathology, University of Luebeck and University Hospital Schleswig-Holstein, Campus Luebeck, Luebeck, Germany; Pathology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany; German Center for Lung Research (DZL), Luebeck and Borstel, Germany
| | - Sieghart Sopper
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Dominik Wolf
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria
| | - Andreas Pircher
- Department of Internal Medicine V, Haematology & Oncology, Comprehensive Cancer Center Innsbruck (CCCI) and Tyrolean Cancer Research Institute (TKFI), Medical University of Innsbruck, Innsbruck, Austria.
| | - Zlatko Trajanoski
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria.
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7
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Koch CM, Prigge AD, Setar L, Anekalla KR, Do-Umehara HC, Abdala-Valencia H, Politanska Y, Shukla A, Chavez J, Hahn GR, Coates BM. Cilia-related gene signature in the nasal mucosa correlates with disease severity and outcomes in critical respiratory syncytial virus bronchiolitis. Front Immunol 2022; 13:924792. [PMID: 36211387 PMCID: PMC9540395 DOI: 10.3389/fimmu.2022.924792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022] Open
Abstract
Background Respiratory syncytial virus (RSV) can cause life-threatening respiratory failure in infants. We sought to characterize the local host response to RSV infection in the nasal mucosa of infants with critical bronchiolitis and to identify early admission gene signatures associated with clinical outcomes. Methods Nasal scrape biopsies were obtained from 33 infants admitted to the pediatric intensive care unit (PICU) with critical RSV bronchiolitis requiring non-invasive respiratory support (NIS) or invasive mechanical ventilation (IMV), and RNA sequencing (RNA-seq) was performed. Gene expression in participants who required shortened NIS (</= 3 days), prolonged NIS (> 3 days), and IMV was compared. Findings Increased expression of ciliated cell genes and estimated ciliated cell abundance, but not immune cell abundance, positively correlated with duration of hospitalization in infants with critical bronchiolitis. A ciliated cell signature characterized infants who required NIS for > 3 days while a basal cell signature was present in infants who required NIS for </= 3 days, despite both groups requiring an equal degree of respiratory support at the time of sampling. Infants who required invasive mechanical ventilation had increased expression of genes involved in neutrophil activation and cell death. Interpretation Increased expression of cilia-related genes in clinically indistinguishable infants with critical RSV may differentiate between infants who will require prolonged hospitalization and infants who will recover quickly. Validation of these findings in a larger cohort is needed to determine whether a cilia-related gene signature can predict duration of illness in infants with critical bronchiolitis. The ability to identify which infants with critical RSV bronchiolitis may require prolonged hospitalization using non-invasive nasal samples would provide invaluable prognostic information to parents and medical providers.
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Affiliation(s)
- Clarissa M. Koch
- Department of Medicine, Northwestern University, Chicago, IL, United States
| | - Andrew D. Prigge
- Department of Pediatrics, Northwestern University, Chicago, IL, United States
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
| | - Leah Setar
- Department of Pediatrics, Northwestern University, Chicago, IL, United States
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
| | | | | | | | - Yuliya Politanska
- Department of Medicine, Northwestern University, Chicago, IL, United States
| | - Avani Shukla
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
| | - Jairo Chavez
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
| | - Grant R. Hahn
- Department of Pediatrics, Northwestern University, Chicago, IL, United States
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
| | - Bria M. Coates
- Department of Pediatrics, Northwestern University, Chicago, IL, United States
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States
- *Correspondence: Bria M. Coates,
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8
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Wang X, Wen D, You C, Ma L. Identification of the key immune-related genes in aneurysmal subarachnoid hemorrhage. Front Mol Neurosci 2022; 15:931753. [PMID: 36172261 PMCID: PMC9511034 DOI: 10.3389/fnmol.2022.931753] [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: 04/29/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Subarachnoid hemorrhage (SAH) is a major cause of death and morbidity worldwide, often due to rupture of intracranial aneurysms (IAs). Immune infiltration and inflammatory activation play key roles in the process of aneurysmal SAH (aSAH). This study aimed to elaborate the immune infiltration and identify related biomarkers both in blood and tissue samples from patients with aSAH. Expression data of aSAH and healthy control samples were obtained from gene expression omnibus (GEO) database. Overall, a blood sample dataset GSE36791 and a tissue sample dataset GSE122897 were included. Differentially expressed genes (DEGs) between aSAH and healthy samples were explored. We applied GO biological and Gene Set Enrichment Analyses (GSEA) processes to access the functional enrichment. Then feature elimination algorithms based on random forest were used to screen and verify the biomarkers of aSAH. We performed three computational algorithms including Cell type Identification by Estimating Relative Subsets of RNA Transcripts (CIBERSORT), Microenvironment Cell Populations-counter (MCPcounter), and xcell to evaluate the immune cell infiltration landscape to identify the unique infiltration characteristics associated with rupturing. We found 2,220 DEGs (856 upregulated and 1,364 downregulated) in the original dataset. Functional analysis revealed most of these genes are enriched in immunological process, especially related with neutrophil response. Similar signaling pathway enrichment patterns were observed in tissue sample dataset and ClueGo. Analysis of immune microenvironment infiltration suggested neutrophils were abnormally upregulated in aSAH compared with those in the control group. Key gene SRPK1 was then filtered based on feature elimination algorithms, and transcription factor (TF) ZNF281 is assumed to participate in immunomodulation by regulating expression of SRPK1. Several immunomodulators such as CXCR1 and CXCR2 also appear to be involved in the progression of aSAH. In the present study, we performed a comprehensive stratification and quantification of the immune infiltration status of aSAH. By exploring the potential mechanism for aSAH based on several computational algorithms, key genes including SRPK1 and ZNF281 were filtered. This study may be of benefit to patients who are at high risk of suffering aSAH which allows for early diagnosis and potential therapy.
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Affiliation(s)
- Xing Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Dingke Wen
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Chao You
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
- West China Brain Research Centre, Sichuan University, Chengdu, China
- *Correspondence: Chao You Lu Ma
| | - Lu Ma
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Chao You Lu Ma
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9
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Besteman SB, Phung E, Raeven HHM, Amatngalim GD, Rumpret M, Crabtree J, Schepp RM, Rodenburg LW, Siemonsma SG, Verleur N, van Slooten R, Duran K, van Haaften GW, Beekman JM, Chang LA, Meyaard L, van der Bruggen T, Berbers GAM, Derksen N, Nierkens S, Morabito KM, Ruckwardt TJ, Kurt-Jones EA, Golenbock D, Graham BS, Bont LJ. Recurrent Respiratory Syncytial Virus Infection in a CD14-Deficient Patient. J Infect Dis 2022; 226:258-269. [PMID: 35429403 PMCID: PMC9400420 DOI: 10.1093/infdis/jiac114] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 04/14/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Recurrent respiratory syncytial virus (RSV) infection requiring hospitalization is rare and the underlying mechanism is unknown. We aimed to determine the role of CD14-mediated immunity in the pathogenesis of recurrent RSV infection. METHODS We performed genotyping and longitudinal immunophenotyping of the first patient with a genetic CD14 deficiency who developed recurrent RSV infection. We analyzed gene expression profiles and interleukin (IL)-6 production by patient peripheral blood mononuclear cells in response to RSV pre- and post-fusion (F) protein. We generated CD14-deficient human nasal epithelial cells cultured at air-liquid interface (HNEC-ALI) of patient-derived cells and after CRISPR-based gene editing of control cells. We analyzed viral replication upon RSV infection. RESULTS Sanger sequencing revealed a homozygous single-nucleotide deletion in CD14, resulting in absence of the CD14 protein in the index patient. In vitro, viral replication was similar in wild-type and CD14-/- HNEC-ALI. Loss of immune cell CD14 led to impaired cytokine and chemokine responses to RSV pre- and post-F protein, characterized by absence of IL-6 production. CONCLUSIONS We report an association of recurrent RSV bronchiolitis with a loss of CD14 function in immune cells. Lack of CD14 function led to defective immune responses to RSV pre- and post-F protein without a change in viral replication.
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Affiliation(s)
- Sjanna B Besteman
- Correspondence: Sjanna B. Besteman, M.D., Department of Pediatrics, Wilhelmina Children’s Hospital, University Medical Centre Utrecht, Utrecht, Lundlaan 6, 3584 EA Utrecht, the Netherlands ()
| | | | | | - Gimano D Amatngalim
- Department of Pediatric Pulmonology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Matevž Rumpret
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands,Oncode Institute, Utrecht, the Netherlands
| | - Juliet Crabtree
- Department of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Rutger M Schepp
- National Institute of Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Lisa W Rodenburg
- Department of Pediatric Pulmonology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Susanna G Siemonsma
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Nile Verleur
- Department of Pediatrics, Wilhelmina Children’s Hospital, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Rianne van Slooten
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Karen Duran
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Gijs W van Haaften
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Jeffrey M Beekman
- Department of Pediatric Pulmonology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands,Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Lauren A Chang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Linde Meyaard
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands,Oncode Institute, Utrecht, the Netherlands
| | - Tjomme van der Bruggen
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Guy A M Berbers
- National Institute of Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | | | - Stefan Nierkens
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Kaitlyn M Morabito
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Tracy J Ruckwardt
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Evelyn A Kurt-Jones
- Department of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Douglas Golenbock
- Department of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Barney S Graham
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Louis J Bont
- Center for Translational Immunology, University Medical Centre Utrecht, Utrecht, the Netherlands,Department of Pediatrics, Wilhelmina Children’s Hospital, University Medical Centre Utrecht, Utrecht, the Netherlands
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10
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Rios Guzman E, Hultquist JF. Clinical and biological consequences of respiratory syncytial virus genetic diversity. Ther Adv Infect Dis 2022; 9:20499361221128091. [PMID: 36225856 PMCID: PMC9549189 DOI: 10.1177/20499361221128091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
Respiratory syncytial virus (RSV) is one of the most common etiological agents of global acute respiratory tract infections with a disproportionate burden among infants, individuals over the age of 65, and immunocompromised populations. The two major subtypes of RSV (A and B) co-circulate with a predominance of either group during different epidemic seasons, with frequently emerging genotypes due to RSV's high genetic variability. Global surveillance systems have improved our understanding of seasonality, disease burden, and genomic evolution of RSV through genotyping by sequencing of attachment (G) glycoprotein. However, the integration of these systems into international infrastructures is in its infancy, resulting in a relatively low number (~2200) of publicly available RSV genomes. These limitations in surveillance hinder our ability to contextualize RSV evolution past current canonical attachment glycoprotein (G)-oriented understanding, thus resulting in gaps in understanding of how genetic diversity can play a role in clinical outcome, therapeutic efficacy, and the host immune response. Furthermore, utilizing emerging RSV genotype information from surveillance and testing the impact of viral evolution using molecular techniques allows us to establish causation between the clinical and biological consequences of arising genotypes, which subsequently aids in informed vaccine design and future vaccination strategy. In this review, we aim to discuss the findings from current molecular surveillance efforts and the gaps in knowledge surrounding the consequence of RSV genetic diversity on disease severity, therapeutic efficacy, and RSV-host interactions.
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Affiliation(s)
- Estefany Rios Guzman
- Department of Medicine, Division of Infectious
Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL,
USA
- Center for Pathogen Genomics and Microbial
Evolution, Institute for Global Health, Northwestern University Feinberg
School of Medicine, Chicago, IL, USA
| | - Judd F. Hultquist
- Robert H. Lurie Medical Research Center,
Northwestern University, 9-141, 303 E. Superior St., Chicago, IL 60611,
USA
- Department of Medicine, Division of Infectious
Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL,
USA
- Center for Pathogen Genomics and Microbial
Evolution, Institute for Global Health, Northwestern University Feinberg
School of Medicine, Chicago, IL, USA
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11
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Tiotiu A, Badi Y, Kermani NZ, Sanak M, Kolmert J, Wheelock CE, Hansbro PM, Dahlén SE, Sterk PJ, Djukanovic R, Guo Y, Mumby S, Adcock IM, Chung KF. Association of Differential Mast Cell Activation to Granulocytic Inflammation in Severe Asthma. Am J Respir Crit Care Med 2021; 205:397-411. [PMID: 34813381 DOI: 10.1164/rccm.202102-0355oc] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Mast cells (MC) play a role in inflammation and both innate and adaptive immunity but their involvement in severe asthma (SA) remains undefined. OBJECTIVE We investigated the phenotypic characteristics of the U-BIOPRED asthma cohort by applying published MC activation signatures to the sputum cell transcriptome. METHODS 84 SA, 20 mild/moderate (MMA) asthma, and 16 non-asthmatic healthy participants were studied. We calculated enrichment scores (ES) for nine MC activation signatures by asthma severity, sputum granulocyte status and three previously-defined sputum molecular phenotypes or transcriptome-associated clusters (TAC1, 2, 3) using gene-set variation analysis. RESULTS MC signatures except unstimulated, repeated FcεR1-stimulated and IFNγ-stimulated were enriched in SA. A FcεR1-IgE-stimulated and a single cell signature from asthmatic bronchial biopsies were highly enriched in eosinophilic asthma and in the TAC1 molecular phenotype. Subjects with a high ES for these signatures had elevated sputum levels of similar genes and pathways. IL-33- and LPS-stimulated MC signatures had greater ES in neutrophilic and mixed granulocytic asthma and in the TAC2 molecular phenotype. These subjects exhibited neutrophil, NF-κB, and IL-1β/TNFα pathway activation. The IFNγ-stimulated signature had the greatest ES in TAC2 and TAC3 that was associated with responses to viral infection. Similar results were obtained in an independent ADEPT asthma cohort. CONCLUSIONS Gene signatures of MC activation allow the detection of SA phenotypes and indicate that MC can be induced to take on distinct transcriptional phenotypes associated with specific clinical phenotypes. IL-33-stimulated MCs signature was associated with severe neutrophilic asthma while IgE-activated MC with an eosinophilic phenotype.
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Affiliation(s)
- Angelica Tiotiu
- National Heart and Lung Institute Division of Respiratory Science, 228067, London, United Kingdom of Great Britain and Northern Ireland.,University Hospital Centre Nancy, 26920, Nancy, France
| | - Yusef Badi
- National Heart and Lung Institute Division of Respiratory Science, 228067, London, United Kingdom of Great Britain and Northern Ireland
| | | | - Marek Sanak
- Jagiellonian University School of Medicine, Department of Medicine, Kraków, Poland
| | - Johan Kolmert
- Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden
| | - Craig E Wheelock
- Karolinska Institutet, 27106, Medical Biochemistry and Biophysics, Stockholm, Sweden
| | - Philip M Hansbro
- University of Technology Sydney, 1994, Sydney, New South Wales, Australia
| | - Sven-Erik Dahlén
- Karolinska Intitutet, Centre for Allergy Research, Stockholm, Sweden
| | - Peter J Sterk
- University of Amsterdam, 1234, Amsterdam, Netherlands
| | - Ratko Djukanovic
- Southampton University, Clinical and Experimental Sciences and Southampton NIHR Respiratory Biomedical Research Unit, Southampton, United Kingdom of Great Britain and Northern Ireland
| | - Yike Guo
- Imperial College London, 4615, London, United Kingdom of Great Britain and Northern Ireland
| | - Sharon Mumby
- Imperial College London, 4615, London, United Kingdom of Great Britain and Northern Ireland
| | - Ian M Adcock
- NHLI, Imperial College London, Airways Disease, London, United Kingdom of Great Britain and Northern Ireland
| | - Kian Fan Chung
- National Heart and Lung Institute, London, United Kingdom of Great Britain and Northern Ireland;
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12
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Mejias A, Cohen S, Glowinski R, Ramilo O. Host transcriptional signatures as predictive markers of infection in children. Curr Opin Infect Dis 2021; 34:552-558. [PMID: 34232136 PMCID: PMC8446306 DOI: 10.1097/qco.0000000000000750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Analyses of the host transcriptional response to infection has proved to be an alternative diagnostic strategy to standard direct pathogen detection. This review summarizes the value of applying blood and mucosal transcriptome analyses for the diagnosis and management of children with viral and bacterial infections. RECENT FINDINGS Over the years, studies have validated the concept that RNA transcriptional profiles derived from children with infectious diseases carry a pathogen-specific biosignature that can be qualitatively and quantitively measured. These biosignatures can be translated into a biologically meaningful context to improve patient diagnosis, as seen in children with tuberculosis, rhinovirus infections, febrile infants and children with pneumonia; understand disease pathogenesis (i.e. congenital CMV) and objectively classify patients according to clinical severity (i.e. respiratory syncytial virus). SUMMARY The global assessment of host RNA transcriptional immune responses has improved our understanding of the host-pathogen interactions in the clinical setting. It has shown the potential to be used in clinical situations wherein our current diagnostic tools are inadequate, guiding the diagnosis and classification of children with infectious diseases.
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Affiliation(s)
- Asuncion Mejias
- Division of Pediatric Infectious Diseases and Center for Vaccines and Immunity, Abigail Wexner Research Institute at Nationwide Children's Hospital and The Ohio State University, Columbus, Ohio, USA
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13
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Brügger M, Démoulins T, Barut GT, Zumkehr B, Oliveira Esteves BI, Mehinagic K, Haas Q, Schögler A, Rameix-Welti MA, Eléouët JF, Moehrlen U, Marti TM, Schmid RA, Summerfield A, Posthaus H, Ruggli N, Hall SRR, Alves MP. Pulmonary mesenchymal stem cells are engaged in distinct steps of host response to respiratory syncytial virus infection. PLoS Pathog 2021; 17:e1009789. [PMID: 34320038 PMCID: PMC8351988 DOI: 10.1371/journal.ppat.1009789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 08/09/2021] [Accepted: 07/08/2021] [Indexed: 02/06/2023] Open
Abstract
Lung-resident (LR) mesenchymal stem and stromal cells (MSCs) are key elements of the alveolar niche and fundamental regulators of homeostasis and regeneration. We interrogated their function during virus-induced lung injury using the highly prevalent respiratory syncytial virus (RSV) which causes severe outcomes in infants. We applied complementary approaches with primary pediatric LR-MSCs and a state-of-the-art model of human RSV infection in lamb. Remarkably, RSV-infection of pediatric LR-MSCs led to a robust activation, characterized by a strong antiviral and pro-inflammatory phenotype combined with mediators related to T cell function. In line with this, following in vivo infection, RSV invades and activates LR-MSCs, resulting in the expansion of the pulmonary MSC pool. Moreover, the global transcriptional response of LR-MSCs appears to follow RSV disease, switching from an early antiviral signature to repair mechanisms including differentiation, tissue remodeling, and angiogenesis. These findings demonstrate the involvement of LR-MSCs during virus-mediated acute lung injury and may have therapeutic implications.
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Affiliation(s)
- Melanie Brügger
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Thomas Démoulins
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - G. Tuba Barut
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Beatrice Zumkehr
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Blandina I. Oliveira Esteves
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Kemal Mehinagic
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Quentin Haas
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Aline Schögler
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Marie-Anne Rameix-Welti
- Université Paris-Saclay, INSERM, Université de Versailles St. Quentin, UMR 1173 (2I), Versailles, France
| | | | - Ueli Moehrlen
- Pediatric Surgery, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Thomas M. Marti
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Ralph A. Schmid
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Artur Summerfield
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Horst Posthaus
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Nicolas Ruggli
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Sean R. R. Hall
- Department of General Thoracic Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Gillies McIndoe Research Institute, Wellington, New Zealand
| | - Marco P. Alves
- Institute of Virology and Immunology, University of Bern, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
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14
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Stegelmeier AA, Darzianiazizi M, Hanada K, Sharif S, Wootton SK, Bridle BW, Karimi K. Type I Interferon-Mediated Regulation of Antiviral Capabilities of Neutrophils. Int J Mol Sci 2021; 22:4726. [PMID: 33946935 PMCID: PMC8125486 DOI: 10.3390/ijms22094726] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/09/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023] Open
Abstract
Interferons (IFNs) are induced by viruses and are the main regulators of the host antiviral response. They balance tissue tolerance and immune resistance against viral challenges. Like all cells in the human body, neutrophils possess the receptors for IFNs and contribute to antiviral host defense. To combat viruses, neutrophils utilize various mechanisms, such as viral sensing, neutrophil extracellular trap formation, and antigen presentation. These mechanisms have also been linked to tissue damage during viral infection and inflammation. In this review, we presented evidence that a complex cross-regulatory talk between IFNs and neutrophils initiates appropriate antiviral immune responses and regulates them to minimize tissue damage. We also explored recent exciting research elucidating the interactions between IFNs, neutrophils, and severe acute respiratory syndrome-coronavirus-2, as an example of neutrophil and IFN cross-regulatory talk. Dissecting the IFN-neutrophil paradigm is needed for well-balanced antiviral therapeutics and development of novel treatments against many major epidemic or pandemic viral infections, including the ongoing pandemic of the coronavirus disease that emerged in 2019.
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Affiliation(s)
| | | | | | | | | | - Byram W. Bridle
- Correspondence: (B.W.B.); (K.K.); Tel.: +1-(519)-824-4120 (ext. 54657) (B.W.B.); +1-(519)-824-4120 (ext. 54668) (K.K.)
| | - Khalil Karimi
- Correspondence: (B.W.B.); (K.K.); Tel.: +1-(519)-824-4120 (ext. 54657) (B.W.B.); +1-(519)-824-4120 (ext. 54668) (K.K.)
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15
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Tahamtan A, Besteman S, Samadizadeh S, Rastegar M, Bont L, Salimi V. Neutrophils in respiratory syncytial virus infection: From harmful effects to therapeutic opportunities. Br J Pharmacol 2020; 178:515-530. [PMID: 33169387 DOI: 10.1111/bph.15318] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 12/15/2022] Open
Abstract
Respiratory syncytial virus (RSV) is an important infectious agent in infants and young children. In most cases, RSV infection only causes mild disease, but in some, it requires invasive ventilation. Although antiviral drugs are obvious candidates to treat viral illness, and some have shown antiviral effects in humans, antivirals such as GS-5806, ALX-0171 and ALS-8176 have not yet met their expectations. Since the inappropriate or dysregulated immune response against RSV leads to harmful immune pathology, a robust immune cascade is probably underway by the time patients reach the hospital. RSV infection is associated with a strong neutrophil influx into the airway. It not clear if these cells contribute to antiviral defence or to lung pathology. This article discusses the protective and harmful roles of neutrophils during RSV infection and provides an overview of mechanisms by which neutrophil function could be targeted to prevent tissue injury and preserve homeostasis.
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Affiliation(s)
- Alireza Tahamtan
- Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Sjanna Besteman
- Department of Paediatrics, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands.,Center for Translation Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Saeed Samadizadeh
- Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mostafa Rastegar
- Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Louis Bont
- Department of Paediatrics, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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