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Non-neutralizing anti-type I interferon autoantibodies could increase thrombotic risk in critical COVID-19 patients
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Non-neutralizing anti-type I interferon autoantibodies could increase thrombotic risk in critical COVID-19 patients
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Journal Article
Non-neutralizing anti-type I interferon autoantibodies could increase thrombotic risk in critical COVID-19 patients
2025
Overview
During the COVID-19 pandemic, approximately 15% of patients with severe COVID-19 pneumonia were reported to have neutralizing anti-type I interferon (IFN) autoantibodies, which impaired the antiviral response and led to a poorer prognosis. However, the physiological impact of non-neutralizing autoantibodies remains unclear. In our cohort of COVID-19 patients admitted to intensive care, the presence of non-neutralizing anti-type I IFN autoantibodies increased the risk of thrombotic complications, likely via a cytokine carrier mechanism, prolonging the half-life of cytokines and dysregulating vascular endothelial function. Previous studies have associated non-neutralizing anti-type I IFN autoantibodies with an increased risk of cardiovascular complications in autoimmune diseases like systemic lupus erythematosus, but their relevance in infectious diseases remains uncertain. Stratifying anti-type I IFN autoantibodies based on their neutralizing capacity may have clinical significance not only in terms of susceptibility to infectious diseases but also in predicting cardiovascular and thrombotic events.
Publisher
Frontiers Media SA
