Elevated Calprotectin and Abnormal Myeloid Cell Subsets Discriminate Severe from Mild COVID-19

Aymeric Silvin, Nicolas Chapuis, Garett Dunsmore, Anne-Gaelle Goubet, Agathe Dubuisson, Lisa Derosa, Carole Almire, Clemence Henon, Olivier Kosmider, Nathalie Droin, Philippe Rameau, Cyril Catelain, Alexia Alfaro, Charles Dussiau, Chloe Friedrich, Elise Sourdeau, Nathalie Marin, Tali-Anne Szwebel, Delphine Cantin, Luc MouthonDidier Borderie, Marc Deloger, Delphine Bredel, Severine Mouraud, Damien Drubay, Muriel Andrieu, Anne-Sophie Lhonneur, Veronique Saada, Annabelle Stoclin, Christophe Willekens, Fanny Pommeret, Frank Griscelli, Lai Guan Ng, Zheng Zhang, Pierre Bost, Ido Amit, Fabrice Barlesi, Aurelien Marabelle, Frederic Pene, Bertrand Gachot, Fabrice Andre, Laurence Zitvogel, Florent Ginhoux, Michaela Fontenay, Eric Solary

Research output: Contribution to journalArticlepeer-review

Abstract

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 CD14(Low)CD16(High) 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 CD10(Low)CD101(-)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.

Original languageEnglish
Pages (from-to)1401-1418
Number of pages18
JournalCell
Volume182
Issue number6
Early online date5 Aug 2020
DOIs
StatePublished - 17 Sep 2020

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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