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| Home > Publications Database > SARS-CoV-2 infection triggers profibrotic macrophage responses and lung fibrosis. |
| Home > Publications Database > SARS-CoV-2 infection triggers profibrotic macrophage responses and lung fibrosis. |
| Journal Article | DZNE-2022-00102 |
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2021
Elsevier
New York, NY
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Please use a persistent id in citations: doi:10.1016/j.cell.2021.11.033
Abstract: COVID-19-induced 'acute respiratory distress syndrome' (ARDS) is associated with prolonged respiratory failure and high mortality, but the mechanistic basis of lung injury remains incompletely understood. Here, we analyze pulmonary immune responses and lung pathology in two cohorts of patients with COVID-19 ARDS using functional single-cell genomics, immunohistology, and electron microscopy. We describe an accumulation of CD163-expressing monocyte-derived macrophages that acquired a profibrotic transcriptional phenotype during COVID-19 ARDS. Gene set enrichment and computational data integration revealed a significant similarity between COVID-19-associated macrophages and profibrotic macrophage populations identified in idiopathic pulmonary fibrosis. COVID-19 ARDS was associated with clinical, radiographic, histopathological, and ultrastructural hallmarks of pulmonary fibrosis. Exposure of human monocytes to SARS-CoV-2, but not influenza A virus or viral RNA analogs, was sufficient to induce a similar profibrotic phenotype in vitro. In conclusion, we demonstrate that SARS-CoV-2 triggers profibrotic macrophage responses and pronounced fibroproliferative ARDS.
Keyword(s): Antigens, CD: metabolism (MeSH) ; Antigens, Differentiation, Myelomonocytic: metabolism (MeSH) ; COVID-19: diagnostic imaging (MeSH) ; COVID-19: pathology (MeSH) ; COVID-19: virology (MeSH) ; Cell Communication (MeSH) ; Cohort Studies (MeSH) ; Fibroblasts: pathology (MeSH) ; Gene Expression Regulation (MeSH) ; Humans (MeSH) ; Idiopathic Pulmonary Fibrosis: diagnostic imaging (MeSH) ; Idiopathic Pulmonary Fibrosis: genetics (MeSH) ; Idiopathic Pulmonary Fibrosis: pathology (MeSH) ; Idiopathic Pulmonary Fibrosis: virology (MeSH) ; Macrophages: pathology (MeSH) ; Macrophages: virology (MeSH) ; Mesenchymal Stem Cells: pathology (MeSH) ; Phenotype (MeSH) ; Proteome: metabolism (MeSH) ; Receptors, Cell Surface: metabolism (MeSH) ; Respiratory Distress Syndrome: diagnostic imaging (MeSH) ; Respiratory Distress Syndrome: pathology (MeSH) ; Respiratory Distress Syndrome: virology (MeSH) ; SARS-CoV-2: physiology (MeSH) ; Tomography, X-Ray Computed (MeSH) ; Transcription, Genetic (MeSH) ; ARDS ; COVID-19 ; IPF ; SARS-CoV-2 ; fibrosis ; lung ; macrophages ; monocytes ; proteomics ; pulmonary fibrosis ; single-cell transcriptomics ; Antigens, CD ; Antigens, Differentiation, Myelomonocytic ; CD163 antigen ; Proteome ; Receptors, Cell Surface
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