ArticleFrontiers in immunology2022
Severity of SARS-CoV-2 infection is associated with high numbers of alveolar mast cells and their degranulation.
Article in Frontiers in immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 27 citations in OpenAlex.
- Mast Cells in Acute COVID-19 Patients.Allergy · 2026Article
- Mast cells release DNA Extracellular Traps (DETs) in response to SARS-CoV-2 and its spike protein.Cell communication and signaling : CCS · 2026Article
- Mast cell-driven remodeling of pulmonary immune and stromal landscapes in COVID-19.Scientific reports · 2026Article
- Classifying Molecular Subtypes and Establishing a Prognosis Model using Oxidative Stress-related Genes for Lung Adenocarcinoma.Current medicinal chemistry · 2026Article
- Immunological Mechanisms Underlying Allergy Predisposition After SARS-CoV-2 Infection in Children.Cells · 2025Review
- Post-COVID-19 Femoral Head Osteonecrosis Exhibits Mast Cell Clusters, Fibrosis, and Vascular Thrombosis: Key Pathological Mechanisms in Long COVID-19 Bone Degeneration.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025Article
- Mast Cell Carboxypeptidase A3 Is Associated with Pulmonary Fibrosis Secondary to COVID-19.International journal of molecular sciences · 2024Article
- Sambou Bamboo salt™ down-regulates the expression levels of angiotensin-converting enzyme 2 in activated human mast cells.Food science and biotechnology · 2024Article
- Mast cell degranulation-triggered by SARS-CoV-2 induces tracheal-bronchial epithelial inflammation and injury.Virologica Sinica · 2024Article
- Potential Pathways and Pathophysiological Implications of Viral Infection-Driven Activation of Kallikrein-Kinin System (KKS).Viruses · 2024Review
- Coronavirus Receptor Expression Profiles in Human Mast Cells, Basophils, and Eosinophils.Cells · 2024Article
- Mast cell activation triggered by SARS-CoV-2 causes inflammation in brain microvascular endothelial cells and microglia.Frontiers in cellular and infection microbiology · 2024Article
- ATP/IL-33-Co-Sensing by Mast Cells (MCs) Requires Activated c-Kit to Ensure Effective Cytokine Responses.Cells · 2023Article
- Mast cell activation in lungs during SARS-CoV-2 infection associated with lung pathology and severe COVID-19.The Journal of clinical investigation · 2023Article
- Recombinant SARS-CoV-2 Spike Protein Stimulates Secretion of Chymase, Tryptase, and IL-1β from Human Mast Cells, Augmented by IL-33.International journal of molecular sciences · 2023Article
- Mechanisms of COVID-19 Associated Pulmonary Thrombosis: A Narrative Review.Biomedicines · 2023Review
- Review
- Mast cell-mediated immune regulation in health and disease.Frontiers in medicine · 2023Review
- Dysregulated early transcriptional signatures linked to mast cell and interferon responses are implicated in COVID-19 severity.Frontiers in immunology · 2023Article
- Mast cells selectively produce inflammatory mediators and impact the early response toFrontiers in immunology · 2023Article
Corrections and comments
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Authors and funding
17 authors at 5 institutions in 3 countries.
Funding
Abstract
Background: The systemic inflammatory response post-SARS-CoV-2 infection increases pro-inflammatory cytokine production, multi-organ damage, and mortality rates. Mast cells (MC) modulate thrombo-inflammatory disease progression ( Objective: To enhance our understanding of the contribution of MC and their proteases in SARS-CoV-2 infection and the pathogenesis of the disease, which might help to identify novel therapeutic targets. Methods: MC proteases chymase (CMA1), carboxypeptidase A3 (CPA3), and tryptase beta 2 (TPSB2), as well as cytokine levels, were measured in the serum of 60 patients with SARS-CoV-2 infection (30 moderate and 30 severe; severity of the disease assessed by chest CT) and 17 healthy controls by ELISA. MC number and degranulation were quantified by immunofluorescent staining for tryptase in lung autopsies of patients deceased from either SARS-CoV-2 infection or unrelated reasons (control). Immortalized human FcεR1 Results: The levels of all three proteases were increased in the serum of patients with COVID-19, and strongly correlated with clinical severity. The density of degranulated MC in COVID-19 lung autopsies was increased compared to control lungs. The total number of released granules and the number of granules per each MC were elevated and positively correlated with von Willebrand factor levels in the lung. SARS-CoV-2 or its viral proteins spike and nucleocapsid did not induce activation or degranulation of LUVA MC Conclusion: In this study, we demonstrate that SARS-CoV-2 is strongly associated with activation of MC, which likely occurs indirectly, driven by the inflammatory response. The results suggest that plasma MC protease levels could predict the disease course, and that severe COVID-19 patients might benefit from including MC-stabilizing drugs in the treatment scheme.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.