Key benefits of dexamethasone and antibody treatment in COVID-19 hamster models revealed by single-cell transcriptomics

Emanuel Wyler, Julia M. Adler, Kathrin Eschke, G. Teixeira Alves, Stefan Peidli, Fabian Pott, Julia Kazmierski, Laura Michalick, Olivia Kershaw, Judith Bushe, Sandro Andreotti, Peter Pennitz, Azza Abdelgawad, Dylan Postmus, Christine Goffinet, Jakob Kreye, S. Momsen Reincke, Harald Prüss, Nils Blüthgen, Achim D. GruberWolfgang M. Kuebler, Martin Witzenrath, Markus Landthaler, Geraldine Nouailles, Jakob Trimpert

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

For coronavirus disease 2019 (COVID-19), effective and well-understood treatment options are still scarce. Since vaccine efficacy is challenged by novel variants, short-lasting immunity, and vaccine hesitancy, understanding and optimizing therapeutic options remains essential. We aimed at better understanding the effects of two standard-of-care drugs, dexamethasone and anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies, on infection and host responses. By using two COVID-19 hamster models, pulmonary immune responses were analyzed to characterize effects of single or combinatorial treatments. Pulmonary viral burden was reduced by anti-SARS-CoV-2 antibody treatment and unaltered or increased by dexamethasone alone. Dexamethasone exhibited strong anti-inflammatory effects and prevented fulminant disease in a severe disease model. Combination therapy showed additive benefits with both anti-viral and anti-inflammatory potency. Bulk and single-cell transcriptomic analyses confirmed dampened inflammatory cell recruitment into lungs upon dexamethasone treatment and identified a specifically responsive subpopulation of neutrophils, thereby indicating a potential mechanism of action. Our analyses confirm the anti-inflammatory properties of dexamethasone and suggest possible mechanisms, validate anti-viral effects of anti-SARS-CoV-2 antibody treatment, and reveal synergistic effects of a combination therapy, thus informing more effective COVID-19 therapies.
Original languageEnglish
Pages (from-to)1952-1965
Number of pages14
JournalMolecular Therapy
Volume30
Issue number5
DOIs
Publication statusPublished - 4 May 2022
Externally publishedYes

Keywords

  • antibody
  • COVID-19 treatment
  • dexamethasone
  • hamster
  • monoclonal antibody therapy
  • SARS-CoV-2
  • scRNA-seq
  • transcriptomics

Fingerprint

Dive into the research topics of 'Key benefits of dexamethasone and antibody treatment in COVID-19 hamster models revealed by single-cell transcriptomics'. Together they form a unique fingerprint.

Cite this