ArticleJournal of clinical immunology2024
Similar Kinetics of Pulmonary SARS-CoV-2 Load in Intensive Care Unit Patients with COVID-19 Pneumonia with or Without Autoantibodies Neutralizing Type I Interferons.
Article in Journal of clinical immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic Review and Meta-analysis of Anti-interferon Auto-antibodies in Infectious Diseases.Journal of clinical immunology · 2026Pooled it
- Autoantibodies neutralizing type I interferons in COVID-19 patients from southern Brazil.Journal of human immunity · 2026Article
- High Nasopharyngeal SARS-CoV-2 Load and Delayed Clearance in Hospitalized Patients With Blood Autoantibodies Neutralizing Type I Interferons.The Journal of infectious diseases · 2026Article
- Anti-Type I Interferon Autoantibodies in COVID-19 and Systemic Lupus Erythematosus: A Comparative Review.Antibodies (Basel, Switzerland) · 2026Review
- Type I IFNs Decrease SARS-CoV-2 Replication in Human Cardiomyocytes and Increase Cytokine Production in Macrophages.Journal of clinical immunology · 2025Article
- Article
Corrections and comments
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Authors and funding
16 authors.
Funding
Abstract
purposeThe pathogenesis of life-threatening coronavirus disease 2019 (COVID-19) pneumonia in ICU patients can involve pre-existing auto-antibodies (auto-Abs) neutralizing type I interferons (IFNs). The impact of these auto-Abs on SARS-CoV-2 clearance in the lower respiratory tract (LRT) is unclear.
methodsWe performed a retrospective study in 99 ICU patients with COVID-19 pneumonia between March and May 2020. LRT SARS-CoV-2 load (intensity and duration) was analyzed according to the presence or not of circulating auto-Abs neutralizing type I IFNs.
resultsAmong the 99 included patients, 38 (38%) were positive for auto-Abs neutralizing type I IFNs, with 5 (5%) harboring auto-Abs neutralizing IFN-α2 at any concentration, while 33 (33%) had auto-Abs neutralizing only IFN-ω at the lower concentration. SARS-CoV-2 load in the LRT and duration of viral shedding, were similar in patients with or without auto-Abs neutralizing type I IFNs. Patients with auto-Abs had the same mortality than those without auto-Abs, despite greater occurrence of renal failure and ECMO support, and longer duration of mechanical ventilation and ICU stay.
conclusionIn summary, 5% of patients with critical COVID-19 pneumonia carried auto-Abs neutralizing IFN-α2, while about 1/3 harbored auto-Abs neutralizing low concentrations of IFN-ω. The detection of either type of auto-Abs did not impact LRT viral clearance and mortality, although it was associated with greater morbidity and a longer hospitalization. These findings suggest that similar albeit hitherto unknown mechanisms of disease drive critical COVID-19 pneumonia in patients without auto-Abs against type I IFNs.
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