Nature Communications (Jul 2023)

Genetically diverse mouse models of SARS-CoV-2 infection reproduce clinical variation in type I interferon and cytokine responses in COVID-19

  • Shelly J. Robertson,
  • Olivia Bedard,
  • Kristin L. McNally,
  • Carl Shaia,
  • Chad S. Clancy,
  • Matthew Lewis,
  • Rebecca M. Broeckel,
  • Abhilash I. Chiramel,
  • Jeffrey G. Shannon,
  • Gail L. Sturdevant,
  • Rebecca Rosenke,
  • Sarah L. Anzick,
  • Elvira Forte,
  • Christoph Preuss,
  • Candice N. Baker,
  • Jeffrey M. Harder,
  • Catherine Brunton,
  • Steven Munger,
  • Daniel P. Bruno,
  • Justin B. Lack,
  • Jacqueline M. Leung,
  • Amirhossein Shamsaddini,
  • Paul Gardina,
  • Daniel E. Sturdevant,
  • Jian Sun,
  • Craig Martens,
  • Steven M. Holland,
  • Nadia A. Rosenthal,
  • Sonja M. Best

DOI
https://doi.org/10.1038/s41467-023-40076-5
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 13

Abstract

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Abstract Inflammation in response to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection drives severity of coronavirus disease 2019 (COVID-19) and is influenced by host genetics. To understand mechanisms of inflammation, animal models that reflect genetic diversity and clinical outcomes observed in humans are needed. We report a mouse panel comprising the genetically diverse Collaborative Cross (CC) founder strains crossed to human ACE2 transgenic mice (K18-hACE2) that confers susceptibility to SARS-CoV-2. Infection of CC x K18-hACE2 resulted in a spectrum of survival, viral replication kinetics, and immune profiles. Importantly, in contrast to the K18-hACE2 model, early type I interferon (IFN-I) and regulated proinflammatory responses were required for control of SARS-CoV-2 replication in PWK x K18-hACE2 mice that were highly resistant to disease. Thus, virus dynamics and inflammation observed in COVID-19 can be modeled in diverse mouse strains that provide a genetically tractable platform for understanding anti-coronavirus immunity.