ジャーナル: Nat Commun / 年: 2021 タイトル: Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress. 著者: Luiza Mendonça / Andrew Howe / James B Gilchrist / Yuewen Sheng / Dapeng Sun / Michael L Knight / Laura C Zanetti-Domingues / Benji Bateman / Anna-Sophia Krebs / Long Chen / Julika Radecke / ...著者: Luiza Mendonça / Andrew Howe / James B Gilchrist / Yuewen Sheng / Dapeng Sun / Michael L Knight / Laura C Zanetti-Domingues / Benji Bateman / Anna-Sophia Krebs / Long Chen / Julika Radecke / Vivian D Li / Tao Ni / Ilias Kounatidis / Mohamed A Koronfel / Marta Szynkiewicz / Maria Harkiolaki / Marisa L Martin-Fernandez / William James / Peijun Zhang / 要旨: Since the outbreak of the SARS-CoV-2 pandemic, there have been intense structural studies on purified viral components and inactivated viruses. However, structural and ultrastructural evidence on how ...Since the outbreak of the SARS-CoV-2 pandemic, there have been intense structural studies on purified viral components and inactivated viruses. However, structural and ultrastructural evidence on how the SARS-CoV-2 infection progresses in the native cellular context is scarce, and there is a lack of comprehensive knowledge on the SARS-CoV-2 replicative cycle. To correlate cytopathic events induced by SARS-CoV-2 with virus replication processes in frozen-hydrated cells, we established a unique multi-modal, multi-scale cryo-correlative platform to image SARS-CoV-2 infection in Vero cells. This platform combines serial cryoFIB/SEM volume imaging and soft X-ray cryo-tomography with cell lamellae-based cryo-electron tomography (cryoET) and subtomogram averaging. Here we report critical SARS-CoV-2 structural events - e.g. viral RNA transport portals, virus assembly intermediates, virus egress pathway, and native virus spike structures, in the context of whole-cell volumes revealing drastic cytppathic changes. This integrated approach allows a holistic view of SARS-CoV-2 infection, from the whole cell to individual molecules.
EMPIAR-10753 (タイトル: Tilt-series taken from SARS-CoV-2 infected Vero cells. Data size: 52.7 Data #1: Tilt-series taken on the periphery of SARS-CoV-2 infected Vero cells [tilt series] Data #2: Tilt-series taken on cryolamella of SARS-CoV-2 infected Vero cells [tilt series])