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Silvin, Aymeric; Chapuis, Nicolas; Dunsmore, Garett; Goubet, Anne-Gaëlle; Dubuisson, Agathe; Derosa, Lisa; Almire, Carole; Hénon, Clémence; Kosmider, Olivier; Droin, Nathalie; Rameau, Philippe; Catelain, Cyril; Alfaro, Alexia; Dussiau, Charles; Friedrich, Chloé; Sourdeau, Elise; Marin, Nathalie; Szwebel, Tali-Anne; Cantin, Delphine; Mouthon, Luc; Borderie, Didier; Deloger, Marc; Bredel, Delphine; Mouraud, Severine; Drubay, Damien; Andrieu, Muriel; Lhonneur, Anne-Sophie; Saada, Véronique; Stoclin, Annabelle; Willekens, Christophe; Pommeret, Fanny; Griscelli, Frank; Ng, Lai Guan; Zhang, Zheng; Bost, Pierre; Amit, Ido; Barlesi, Fabrice; Marabelle, Aurélien; Pène, Frédéric; Gachot, Bertrand; André, Fabrice; Zitvogel, Laurence; Ginhoux, Florent; Fontenay, Michaela; Solary, Eric
Cell, 09/2020, Letnik: 182, Številka: 6Journal Article
Blood myeloid cells are known to be dysregulated in coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2. It is unknown whether the innate myeloid response differs with disease severity and whether markers of innate immunity discriminate high-risk patients. Thus, we performed high-dimensional flow cytometry and single-cell RNA sequencing of COVID-19 patient peripheral blood cells and detected disappearance of non-classical CD14LowCD16High monocytes, accumulation of HLA-DRLow classical monocytes (Human Leukocyte Antigen - DR isotype), and release of massive amounts of calprotectin (S100A8/S100A9) in severe cases. Immature CD10LowCD101−CXCR4+/− neutrophils with an immunosuppressive profile accumulated in the blood and lungs, suggesting emergency myelopoiesis. Finally, we show that calprotectin plasma level and a routine flow cytometry assay detecting decreased frequencies of non-classical monocytes could discriminate patients who develop a severe form of COVID-19, suggesting a predictive value that deserves prospective evaluation. Display omitted •Patients with severe COVID-19 accumulate HLA-DRLow monocytes and immature neutrophils in blood/lungs•Calprotectin level positively correlates with neutrophil count and disease severity•Loss of non-classical monocytes could identify high risk of severe COVID-19 An analysis of patients with severe COVID-19 reveals immature neutrophil and non-classical monocyte pools, with levels of the protein calprotectin linked to disease severity.
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in: SICRIS
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