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  • Mouse model of SARS-CoV-2 r...
    Israelow, Benjamin; Song, Eric; Mao, Tianyang; Lu, Peiwen; Meir, Amit; Liu, Feimei; Alfajaro, Mia Madel; Wei, Jin; Dong, Huiping; Homer, Robert J; Ring, Aaron; Wilen, Craig B; Iwasaki, Akiko

    The Journal of experimental medicine, 12/2020, Letnik: 217, Številka: 12
    Journal Article

    Severe acute respiratory syndrome-coronavirus 2 (SARS-Cov-2) has caused over 13,000,000 cases of coronavirus disease (COVID-19) with a significant fatality rate. Laboratory mice have been the stalwart of therapeutic and vaccine development; however, they do not support infection by SARS-CoV-2 due to the virus's inability to use the mouse orthologue of its human entry receptor angiotensin-converting enzyme 2 (hACE2). While hACE2 transgenic mice support infection and pathogenesis, these mice are currently limited in availability and are restricted to a single genetic background. Here we report the development of a mouse model of SARS-CoV-2 based on adeno-associated virus (AAV)-mediated expression of hACE2. These mice support viral replication and exhibit pathological findings found in COVID-19 patients. Moreover, we show that type I interferons do not control SARS-CoV-2 replication in vivo but are significant drivers of pathological responses. Thus, the AAV-hACE2 mouse model enables rapid deployment for in-depth analysis following robust SARS-CoV-2 infection with authentic patient-derived virus in mice of diverse genetic backgrounds.