人性化鼠标
免疫病理学
免疫学
免疫系统
医学
呼吸道疾病
病毒性疾病
干扰素
冠状病毒
病毒学
2019年冠状病毒病(COVID-19)
疾病
肺
病毒
生物
传染病(医学专业)
病理
内科学
作者
Esen Sefik,Benjamin Israelow,Haris Mirza,Jun Zhao,Rihao Qu,Eleanna Kaffe,Eric Song,Stephanie Halene,Eric Meffre,Yuval Kluger,Michel C. Nussenzweig,Craig B. Wilen,Akiko Iwasaki,Richard A. Flavell
标识
DOI:10.1038/s41587-021-01155-4
摘要
Coronavirus disease 2019 (COVID-19) is an infectious disease that can present as an uncontrolled, hyperactive immune response, causing severe immunological injury. Existing rodent models do not recapitulate the sustained immunopathology of patients with severe disease. Here we describe a humanized mouse model of COVID-19 that uses adeno-associated virus to deliver human ACE2 to the lungs of humanized MISTRG6 mice. This model recapitulates innate and adaptive human immune responses to severe acute respiratory syndrome coronavirus 2 infection up to 28 days after infection, with key features of chronic COVID-19, including weight loss, persistent viral RNA, lung pathology with fibrosis, a human inflammatory macrophage response, a persistent interferon-stimulated gene signature and T cell lymphopenia. We used this model to study two therapeutics on immunopathology, patient-derived antibodies and steroids and found that the same inflammatory macrophages crucial to containing early infection later drove immunopathology. This model will enable evaluation of COVID-19 disease mechanisms and treatments. A mouse model of chronic COVID-19 facilitates the study of disease mechanisms and therapies.
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