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Journal Articles European Journal of Immunology Year : 2021

Complement cascade in severe forms of COVID-19: Recent advances in therapy

Abstract

The complement system is an essential component of the innate immune system. The three complement pathways (classical, lectin, alternative) are directly or indirectly activated by the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2). In the most severe forms of COVID-19, overactivation of the complement system may contribute to the cytokine storm, endothelial inflammation (endotheliitis) and thrombosis. No antiviral drug has yet been shown to be effective in COVID-19. Therefore, immunotherapies represent a promising therapeutic in the immunopathological phase (following the viral phase) of the disease. Complement blockade, mostly C5a-C5aR axis blockade, may prevent acute respiratory distress syndrome (ARDS) from worsening or progression to death. Clinical trials are underway.
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Dates and versions

hal-03226299 , version 1 (14-05-2021)

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Nassima Chouaki Benmansour, Julien Carvelli, Eric Vivier. Complement cascade in severe forms of COVID-19: Recent advances in therapy. European Journal of Immunology, 2021, pp.1-8. ⟨10.1002/eji.202048959⟩. ⟨hal-03226299⟩
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