ArticleJCI insight2024
Emergence of dysfunctional neutrophils with a defect in arginase-1 release in severe COVID-19.
Article in JCI insight, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prognostic value of the systemic immune-inflammation index in gastrointestinal cancers treated with immune checkpoint inhibitors: a systematic review and meta-analysis.BMC gastroenterology · 2026Pooled it
- Single-cell and spatial transcriptomic profiling reveals distinct immune landscapes in murine lungs infected with H1N1 versus H5N1 influenza viruses.Journal of virology · 2026Article
- Low-density neutrophil heterogeneity and spleen tyrosine kinase as therapeutic targets in sepsis.JCI insight · 2026Article
- Identification of neutrophil-related genes associated with the severity of RSV infection.Microbiology spectrum · 2026Article
- Machine Learning Identification of Cell-Type-Specific Molecular Signatures Distinguishing COVID-19 from Other Lower Respiratory Tract Diseases.Life (Basel, Switzerland) · 2026Article
- Review
- Disruption of neutrophil homeostasis is associated with functional alterations in mitochondria of critically ill COVID-19 patients.Scientific reports · 2026Article
- Neutrophil extracellular traps in asthma and chronic obstructive pulmonary disease: pathogenic roles, and therapeutic opportunities.Frontiers in immunology · 2026Review
- Cytosolic proliferating cell nuclear antigen (PCNA) orchestrates neutrophil hyperactivation in COVID-19.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Epigenetic Regulation of Neutrophils in ARDS.Cells · 2025Review
- Low-Density Neutrophils: Enigmatic Cells in Health and Disease.Journal of immunology research · 2025Review
Corrections and comments
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Authors and funding
19 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Neutrophilia occurs in patients infected with SARS-CoV-2 (COVID-19) and is predictive of poor outcomes. Here, we link heterogenous neutrophil populations to disease severity in COVID-19. We identified neutrophils with features of cellular aging and immunosuppressive capacity in mild COVID-19 and features of neutrophil immaturity and activation in severe disease. The low-density neutrophil (LDN) number in circulating blood correlated with COVID-19 severity. Many of the divergent neutrophil phenotypes in COVID-19 were overrepresented in the LDN fraction and were less detectable in normal-density neutrophils. Functionally, neutrophils from patients with severe COVID-19 displayed defects in neutrophil extracellular trap formation and reactive oxygen species production. Soluble factors secreted by neutrophils from these patients inhibited T cell proliferation. Neutrophils from patients with severe COVID-19 had increased expression of arginase-1 protein, a feature that was retained in convalescent patients. Despite this increase in intracellular expression, there was a reduction in arginase-1 release by neutrophils into serum and culture supernatants. Furthermore, neutrophil-mediated T cell suppression was independent of arginase-1. Our results indicate the presence of dysfunctional, activated, and immature neutrophils in severe COVID-19.
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