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Comparative immune profiling of acute respiratory distress syndrome patients with or without SARS-CoV2 infection

Abstract : Acute respiratory distress syndrome (ARDS) is the main complication of coronavirus disease 2019 (COVID-19), requiring admission to the intensive care unit (ICU). Despite extensive immune profiling of COVID-19 patients, to what extent COVID-19-associated ARDS differs from other causes of ARDS remains unknown. To address this question, here, we build 3 cohorts of patients categorized in COVID-19ARDS, COVID-19ARDS, and COVID-19ARDS, and compare, by high-dimensional mass cytometry, their immune landscape. A cell signature associating S100A9/calprotectin-producing CD169 monocytes, plasmablasts, and Th1 cells is found in COVID-19ARDS, unlike COVID-19ARDS patients. Moreover, this signature is essentially shared with COVID-19ARDS patients, suggesting that severe COVID-19 patients, whether or not they experience ARDS, display similar immune profiles. We show an increase in CD14HLA-DR and CD14CD16 monocytes correlating to the occurrence of adverse events during the ICU stay. We demonstrate that COVID-19-associated ARDS displays a specific immune profile and may benefit from personalized therapy in addition to standard ARDS management.
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Submitted on : Wednesday, May 19, 2021 - 9:04:27 AM
Last modification on : Friday, December 3, 2021 - 11:44:01 AM
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Mikaël Roussel, J. Ferrant, F. Reizine, S. Le Gallou, J. Dulong, et al.. Comparative immune profiling of acute respiratory distress syndrome patients with or without SARS-CoV2 infection. Cell Reports Medicine, Cell Press, 2021, pp.100291. ⟨10.1016/j.xcrm.2021.100291⟩. ⟨hal-03229515⟩

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