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Gaudin C, Born-Bony M, Villeret B, Jaillet M, Faille D, Timsit JF, Tran-Dinh A, Montravers P, Crestani B, Garcia-Verdugo I, Sallenave JM. COVID-19 PBMCs are doubly harmful, through LDN-mediated lung epithelial damage and monocytic impaired responsiveness to live Pseudomonas aeruginosa exposure. Front Immunol 2024; 15:1398369. [PMID: 38835759 PMCID: PMC11148249 DOI: 10.3389/fimmu.2024.1398369] [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: 03/09/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
Introduction Although many studies have underscored the importance of T cells, phenotypically and functionally, fewer have studied the functions of myeloid cells in COVID disease. In particular, the potential role of myeloid cells such as monocytes and low-density neutrophils (LDNs) in innate responses and particular in the defense against secondary bacterial infections has been much less documented. Methods Here, we compared, in a longitudinal study, healthy subjects, idiopathic fibrosis patients, COVID patients who were either hospitalized/moderate (M-) or admitted to ICU (COV-ICU) and patients in ICU hospitalized for other reasons (non-COV-ICU). Results We show that COVID patients have an increased proportion of low-density neutrophils (LDNs), which produce high levels of proteases (particularly, NE, MMP-8 and MMP-9) (unlike non-COV-ICU patients), which are partly responsible for causing type II alveolar cell damage in co-culture experiments. In addition, we showed that M- and ICU-COVID monocytes had reduced responsiveness towards further live Pseudomonas aeruginosa (PAO1 strain) infection, an important pathogen colonizing COVID patients in ICU, as assessed by an impaired secretion of myeloid cytokines (IL-1, TNF, IL-8,…). By contrast, lymphoid cytokines (in particular type 2/type 3) levels remained high, both basally and post PAO1 infection, as reflected by the unimpaired capacity of T cells to proliferate, when stimulated with anti-CD3/CD28 beads. Discussion Overall, our results demonstrate that COVID circulatory T cells have a biased type 2/3 phenotype, unconducive to proper anti-viral responses and that myeloid cells have a dual deleterious phenotype, through their LDN-mediated damaging effect on alveolar cells and their impaired responsiveness (monocyte-mediated) towards bacterial pathogens such as P. aeruginosa.
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Affiliation(s)
- Clémence Gaudin
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
| | - Maëlys Born-Bony
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
| | - Bérengère Villeret
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
| | - Madeleine Jaillet
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
| | - Dorothée Faille
- Université Paris Cité and Université Sorbonne Paris Nord, Inserm, LVTS, Paris, France
- Laboratoire d'Hématologie, AP-HP, Hôpital Bichat, Paris, France
| | - Jean-François Timsit
- Réanimation Médicale et des Maladies Infectieuses, Centre Hospitalier Universitaire Bichat-Claude Bernard, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Alexy Tran-Dinh
- Inserm UMR1148, Laboratory for Vascular Translational Science Bichat Hospital, Paris, France
- AP-HP Nord, Anesthesiology and Intensive Care Department, Bichat-Claude Bernard University Hospital, Paris, France
| | - Philippe Montravers
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
- AP-HP Nord, Anesthesiology and Intensive Care Department, Bichat-Claude Bernard University Hospital, Paris, France
| | - Bruno Crestani
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
- Service de Pneumologie A, Hôpital Bichat, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Ignacio Garcia-Verdugo
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
| | - Jean-Michel Sallenave
- Laboratoire d'Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale U1152, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université de Paris-Cité, Paris, France
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Wang Y, Zhu Z, Luo R, Chen W. Single-cell transcriptome analysis reveals heterogeneity of neutrophils in non-small cell lung cancer. J Gene Med 2024; 26:e3690. [PMID: 38735760 DOI: 10.1002/jgm.3690] [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: 12/23/2023] [Revised: 03/23/2024] [Accepted: 04/07/2024] [Indexed: 05/14/2024] Open
Abstract
BACKGROUND Lung cancer stands out as a highly perilous malignant tumor with severe implications for human health. There has been a growing interest in neutrophils as a result of their role in promoting cancer in recent years. Thus, the present study aimed to investigate the heterogeneity of neutrophils in non-small cell lung cancer (NSCLC). METHODS Single-cell RNA sequencing of tumor-associated neutrophils (TANs) and polymorphonuclear neutrophils sourced from the Gene Expression Omnibus database was analyzed. Moreover, cell-cell communication, differentiation trajectories and transcription factor analyses were performed. RESULTS Neutrophils were found to be closely associated with macrophages. Four major types of TANs were identified: a transitional subcluster that migrated from blood to tumor microenvironment (TAN-0), an inflammatory subcluster (TAN-1), a subpopulation that displayed a distinctive transcriptional signature (TAN-2) and a final differentiation state that promoted tumor formation (TAN-3). Meanwhile, TAN-3 displayed a marked increase in glycolytic activity. Finally, transcription factors were analyzed to uncover distinct TAN cluster-specific regulons. CONCLUSIONS The discovery of the dynamic characteristics of TANs in the present study is anticipated to contribute to yielding a better understanding of the tumor microenvironment and advancing the treatment of NSCLC.
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Affiliation(s)
- Yunzhen Wang
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ziyi Zhu
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Raojun Luo
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenwen Chen
- Nursing Department, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Horvath L, Puschmann C, Scheiber A, Martowicz A, Sturm G, Trajanoski Z, Wolf D, Pircher A, Salcher S. Beyond binary: bridging neutrophil diversity to new therapeutic approaches in NSCLC. Trends Cancer 2024; 10:457-474. [PMID: 38360439 DOI: 10.1016/j.trecan.2024.01.010] [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: 11/03/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/17/2024]
Abstract
Neutrophils represent the most abundant myeloid cell subtype in the non-small-cell lung cancer (NSCLC) tumor microenvironment (TME). By anti- or protumor polarization, they impact multiple aspects of tumor biology and affect sensitivity to conventional therapies and immunotherapies. Single-cell RNA sequencing (scRNA-seq) analyses have unraveled an extensive neutrophil heterogeneity, helping our understanding of their pleiotropic role. In this review we summarize recent data and models on tumor-associated neutrophil (TAN) biology, focusing on the diversity that evolves in response to tumor-intrinsic cues. We categorize available transcriptomic profiles from different cancer entities into a defined set of neutrophil subclusters with distinct phenotypic properties, to step beyond the traditional binary N1/2 classification. Finally, we discuss potential ways to exploit these neutrophil states in the setting of anticancer therapy.
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Affiliation(s)
- Lena Horvath
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria
| | - Constanze Puschmann
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria
| | - Alexandra Scheiber
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria
| | - Agnieszka Martowicz
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria
| | - Gregor Sturm
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria; Boehringer Ingelheim International Pharma GmbH & Co KG, Biberach, Germany
| | - Zlatko Trajanoski
- Biocenter, Institute of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Dominik Wolf
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria
| | - Andreas Pircher
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria
| | - Stefan Salcher
- Department of Hematology and Oncology, Internal Medicine V, Comprehensive Cancer Center Innsbruck (CCCI), Medical University of Innsbruck (MUI), Innsbruck, Austria.
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Shafqat A, Khan JA, Alkachem AY, Sabur H, Alkattan K, Yaqinuddin A, Sing GK. How Neutrophils Shape the Immune Response: Reassessing Their Multifaceted Role in Health and Disease. Int J Mol Sci 2023; 24:17583. [PMID: 38139412 PMCID: PMC10744338 DOI: 10.3390/ijms242417583] [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: 11/19/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Neutrophils are the most abundant of the circulating immune cells and are the first to be recruited to sites of inflammation. Neutrophils are a heterogeneous group of immune cells from which are derived extracellular traps (NETs), reactive oxygen species, cytokines, chemokines, immunomodulatory factors, and alarmins that regulate the recruitment and phenotypes of neutrophils, macrophages, dendritic cells, T cells, and B cells. In addition, cytokine-stimulated neutrophils can express class II major histocompatibility complex and the internal machinery necessary for successful antigen presentation to memory CD4+ T cells. This may be relevant in the context of vaccine memory. Neutrophils thus emerge as orchestrators of immune responses that play a key role in determining the outcome of infections, vaccine efficacy, and chronic diseases like autoimmunity and cancer. This review aims to provide a synthesis of current evidence as regards the role of these functions of neutrophils in homeostasis and disease.
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Affiliation(s)
- Areez Shafqat
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia (K.A.); (A.Y.); (G.K.S.)
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Riihimäki M, Fegraeus K, Nordlund J, Waern I, Wernersson S, Akula S, Hellman L, Raine A. Single-cell transcriptomics delineates the immune cell landscape in equine lower airways and reveals upregulation of FKBP5 in horses with asthma. Sci Rep 2023; 13:16261. [PMID: 37758813 PMCID: PMC10533524 DOI: 10.1038/s41598-023-43368-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 09/22/2023] [Indexed: 09/29/2023] Open
Abstract
Equine asthma (EA) is a heterogenous, complex disease, with a significant negative impact on horse welfare and performance. EA and human asthma share fundamental similarities, making EA a useful model for studying the disease. One relevant sample type for investigating chronic lung inflammation is bronchoalveolar lavage fluid (BALF), which provides a snapshot of the immune cells present in the alveolar space. To investigate the immune cell landscape of the respiratory tract in horses with mild-to-moderate equine asthma (mEA) and healthy controls, single-cell RNA sequencing was conducted on equine BALF cells. We characterized the major immune cell populations present in equine BALF, as well as subtypes thereof. Interestingly, the most significantly upregulated gene discovered in cases of mEA was FKBP5, a chaperone protein involved in regulating the activity of the glucocorticoid receptor.
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Affiliation(s)
- Miia Riihimäki
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Kim Fegraeus
- Department of Medical Sciences, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Jessica Nordlund
- Department of Medical Sciences, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ida Waern
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Sara Wernersson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Srinivas Akula
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Lars Hellman
- Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden
| | - Amanda Raine
- Department of Medical Sciences, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
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Tian L, He M, Fan H, Zhang H, Dong X, Qiao M, Tang C, Yu Y, Chen T, Zhou N. COVID-19 of differing severity: from bulk to single-cell expression data analysis. Cell Cycle 2023; 22:1777-1797. [PMID: 37486005 PMCID: PMC10446813 DOI: 10.1080/15384101.2023.2239620] [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: 02/23/2023] [Revised: 04/03/2023] [Accepted: 06/24/2023] [Indexed: 07/25/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is raging worldwide and causes an immense disease burden. Despite this, the biomarkers and targeting drugs of COVID-19 of differing severity remain largely unknown. Based on the GSE164805 dataset, we identified modules most critical for mild COVID-19 (mCOVID-19) and severe COVID-19 (sCOVID-19) through WGCNA, respectively. We subsequently constructed a protein-protein interaction network, and detected 16 hub genes for mCOVID-19 and 10 hub genes for sCOVID-19, followed by the prediction of upstream transcription factors (TFs) and kinases. The enrichment analysis then showed downregulation of TNFA signaling via NFKB for mCOVID-19, as well as downregulation of MYC targets V1 for sCOVID-19. Infiltration degrees of many immune cells, such as macrophages, were also sharply different between mCOVID-19 and sCOVID-19 samples. Predicted protein targeting drugs with the highest scores nearly all belong to naturally derived or synthetic glucocorticoids. For the two single-cell RNA-seq datasets, we explored the expression distribution of hub genes for mCOVID-19/sCOVID-19 in each cell type. The expression levels of PRKCA, MCM5, TYMS, RBBP4, BCL6, FLOT1, KDM6B, and TLR2 were found to be cell-type-specific. Furthermore, the expression levels of 10 hub genes for mCOVID-19 were significantly upregulated in PBMCs between eight healthy controls and eight mCOVID-19 patients at our institution. Collectively, we detected critical modules, pathways, TFs, kinases, immune cells, targeting drugs, hub genes, and their expression distributions in different cell types that may involve the pathogenesis of COVID-19 of differing severity, which may propel earlier diagnosis and more effective treatment of this intractable disease in the future.
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Affiliation(s)
- Linlin Tian
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Min He
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Huafeng Fan
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Hongying Zhang
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Xiaoxiao Dong
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Mengkai Qiao
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Chenyu Tang
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Yan Yu
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
| | - Tong Chen
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Nan Zhou
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R. China
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Müller S, Schultze JL. Systems analysis of human innate immunity in COVID-19. Semin Immunol 2023; 68:101778. [PMID: 37267758 PMCID: PMC10201327 DOI: 10.1016/j.smim.2023.101778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/13/2023] [Accepted: 05/13/2023] [Indexed: 06/04/2023]
Abstract
Recent developments in sequencing technologies, the computer and data sciences, as well as increasingly high-throughput immunological measurements have made it possible to derive holistic views on pathophysiological processes of disease and treatment effects directly in humans. We and others have illustrated that incredibly predictive data for immune cell function can be generated by single cell multi-omics (SCMO) technologies and that these technologies are perfectly suited to dissect pathophysiological processes in a new disease such as COVID-19, triggered by SARS-CoV-2 infection. Systems level interrogation not only revealed the different disease endotypes, highlighted the differential dynamics in context of disease severity, and pointed towards global immune deviation across the different arms of the immune system, but was already instrumental to better define long COVID phenotypes, suggest promising biomarkers for disease and therapy outcome predictions and explains treatment responses for the widely used corticosteroids. As we identified SCMO to be the most informative technologies in the vest to better understand COVID-19, we propose to routinely include such single cell level analysis in all future clinical trials and cohorts addressing diseases with an immunological component.
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Affiliation(s)
- Sophie Müller
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) e.V., Bonn, Germany; Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia; Genomics & Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Joachim L Schultze
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) e.V., Bonn, Germany; Genomics & Immunoregulation, Life and Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany; PRECISE Platform for Single Cell Genomics and Epigenomics, DZNE and University of Bonn, Bonn, Germany.
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Prebensen C, Lefol Y, Myhre PL, Lüders T, Jonassen C, Blomfeldt A, Omland T, Nilsen H, Berdal JE. Longitudinal whole blood transcriptomic analysis characterizes neutrophil activation and interferon signaling in moderate and severe COVID-19. Sci Rep 2023; 13:10368. [PMID: 37365222 PMCID: PMC10293211 DOI: 10.1038/s41598-023-37606-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 06/24/2023] [Indexed: 06/28/2023] Open
Abstract
A maladaptive inflammatory response has been implicated in the pathogenesis of severe COVID-19. This study aimed to characterize the temporal dynamics of this response and investigate whether severe disease is associated with distinct gene expression patterns. We performed microarray analysis of serial whole blood RNA samples from 17 patients with severe COVID-19, 15 patients with moderate disease and 11 healthy controls. All study subjects were unvaccinated. We assessed whole blood gene expression patterns by differential gene expression analysis, gene set enrichment, two clustering methods and estimated relative leukocyte abundance using CIBERSORT. Neutrophils, platelets, cytokine signaling, and the coagulation system were activated in COVID-19, and this broad immune activation was more pronounced in severe vs. moderate disease. We observed two different trajectories of neutrophil-associated genes, indicating the emergence of a more immature neutrophil phenotype over time. Interferon-associated genes were strongly enriched in early COVID-19 before falling markedly, with modest severity-associated differences in trajectory. In conclusion, COVID-19 necessitating hospitalization is associated with a broad inflammatory response, which is more pronounced in severe disease. Our data suggest a progressively more immature circulating neutrophil phenotype over time. Interferon signaling is enriched in COVID-19 but does not seem to drive severe disease.
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Affiliation(s)
- Christian Prebensen
- Department of Infectious Diseases, Oslo University Hospital, Kirkeveien 166, 0450, Oslo, Norway.
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Yohan Lefol
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Microbiology, University of Oslo, Oslo, Norway
| | - Peder L Myhre
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Akershus University Hospital, Lørenskog, Norway
| | - Torben Lüders
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Clinical Molecular Biology, Akershus University Hospital, Lørenskog, Norway
| | | | - Anita Blomfeldt
- Department of Microbiology and Infection Control, Akershus University Hospital, Lørenskog, Norway
| | - Torbjørn Omland
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Akershus University Hospital, Lørenskog, Norway
| | - Hilde Nilsen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Microbiology, University of Oslo, Oslo, Norway
| | - Jan-Erik Berdal
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Infectious Diseases, Akershus University Hospital, Lørenskog, Norway
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9
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Gong HH, Worley MJ, Carver KA, Goldstein DR, Deng JC. Neutrophils drive pulmonary vascular leakage in MHV-1 infection of susceptible A/J mice. Front Immunol 2023; 13:1089064. [PMID: 36685578 PMCID: PMC9853883 DOI: 10.3389/fimmu.2022.1089064] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/15/2022] [Indexed: 01/07/2023] Open
Abstract
Background Lung inflammation, neutrophil infiltration, and pulmonary vascular leakage are pathological hallmarks of acute respiratory distress syndrome (ARDS) which can lethally complicate respiratory viral infections. Despite similar comorbidities, however, infections in some patients may be asymptomatic while others develop ARDS as seen with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections for example. Methods In this study, we infected resistant C57BL/6 and susceptible A/J strains of mice with pulmonary administration of murine hepatitis virus strain 1 (MHV-1) to determine mechanisms underlying susceptibility to pulmonary vascular leakage in a respiratory coronavirus infection model. Results A/J animals displayed increased lung injury parameters, pulmonary neutrophil influx, and deficient recruitment of other leukocytes early in the infection. Moreover, under basal conditions, A/J neutrophils overexpressed primary granule protein genes for myeloperoxidase and multiple serine proteases. During infection, myeloperoxidase and elastase protein were released in the bronchoalveolar spaces at higher concentrations compared to C57BL/6 mice. In contrast, genes from other granule types were not differentially expressed between these 2 strains. We found that depletion of neutrophils led to mitigation of lung injury in infected A/J mice while having no effect in the C57BL/6 mice, demonstrating that an altered neutrophil phenotype and recruitment profile is a major driver of lung immunopathology in susceptible mice. Conclusions These results suggest that host susceptibility to pulmonary coronaviral infections may be governed in part by underlying differences in neutrophil phenotypes, which can vary between mice strains, through mechanisms involving primary granule proteins as mediators of neutrophil-driven lung injury.
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Affiliation(s)
- Henry H. Gong
- University of Michigan, Ann Arbor, MI, United States,Research Service, Veterans Affairs (VA) Ann Arbor Healthcare System, Department of Veterans Affairs Health System, Ann Arbor, MI, United States,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Matthew J. Worley
- Research Service, Veterans Affairs (VA) Ann Arbor Healthcare System, Department of Veterans Affairs Health System, Ann Arbor, MI, United States,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Kyle A. Carver
- Research Service, Veterans Affairs (VA) Ann Arbor Healthcare System, Department of Veterans Affairs Health System, Ann Arbor, MI, United States,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Daniel R. Goldstein
- Division of Cardiology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Jane C. Deng
- University of Michigan, Ann Arbor, MI, United States,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States,Medicine Service, Veterans Affairs (VA) Ann Arbor Healthcare System, Department of Veterans Affairs Health System, Ann Arbor, MI, United States,*Correspondence: Jane C. Deng,
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