Abstract
SARS-CoV-2, the etiological agentofCOVID-19, causeslife-threatening disease. This novel coronavirusenters host cellsvia the respiratory tract,promoting the formation ofsevere pulmonary lesions andsystemic disease. Few animal models can simulate the clinical signs and pathology ofCOVID-19patients.Diverse preclinical studies using K18-hACE2 mice and Syrian golden hamsters, which are highly permissive toSARS-CoV-2 in therespiratory tract, are emerging; however, the systemic pathogenesis and cellular tropism of these models remain obscure. We intranasally infected K18-hACE2 mice and Syrian golden hamsterswith SARS-CoV-2, and compared the clinical features, pathogenesis, cellular tropism,and infiltrated immune-cellsubsets. In K18-hACE2 mice, SARS-CoV-2 persistently replicated inalveolar cells and causedpulmonary and extra-pulmonary disease, resulting in fataloutcomes. Conversely, in Syrian golden hamsters, transient SARS-CoV-2infectioninbronchial cells causedreversible pulmonary disease,without mortality. Our findings provide comprehensive insightsinto thepathogenic spectrum of COVID-19 using pre-clinical models.
Original language | English |
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Journal | DMM Disease Models and Mechanisms |
Volume | 15 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2022 Nov |
Bibliographical note
Funding Information:Funding: This project was supported by the Korea Mouse Phenotyping Project (NRF-2016M3A9D5A01952416) and by the Brain Korea 21 PLUS Project for Medical Science at Yonsei University. K.T.N. is supported by the Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Korean government (MSIT) (Nos. 2016M3A9D5A01952416 and 2021M3H9A1038083).
Publisher Copyright:
© 2022. Published by The Company of Biologists Ltd.
All Science Journal Classification (ASJC) codes
- Neuroscience (miscellaneous)
- Medicine (miscellaneous)
- Immunology and Microbiology (miscellaneous)
- Biochemistry, Genetics and Molecular Biology(all)