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. Gruber
  • Wolfgang 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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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