Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress

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...

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Main Authors: Mendonça, L, Howe, A, Gilchrist, JB, Sheng, Y, Sun, D, Knight, ML, Zanetti-Domingues, LC, Bateman, B, Krebs, A-S, Chen, L, Radecke, J, Li, VD, Ni, T, Kounatidis, I, Koronfel, MA, Szynkiewicz, M, Harkiolaki, M, Martin-Fernandez, ML, James, W, Zhang, P
Format: Journal article
Language:English
Published: Springer Nature 2021
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author Mendonça, L
Howe, A
Gilchrist, JB
Sheng, Y
Sun, D
Knight, ML
Zanetti-Domingues, LC
Bateman, B
Krebs, A-S
Chen, L
Radecke, J
Li, VD
Ni, T
Kounatidis, I
Koronfel, MA
Szynkiewicz, M
Harkiolaki, M
Martin-Fernandez, ML
James, W
Zhang, P
author_facet Mendonça, L
Howe, A
Gilchrist, JB
Sheng, Y
Sun, D
Knight, ML
Zanetti-Domingues, LC
Bateman, B
Krebs, A-S
Chen, L
Radecke, J
Li, VD
Ni, T
Kounatidis, I
Koronfel, MA
Szynkiewicz, M
Harkiolaki, M
Martin-Fernandez, ML
James, W
Zhang, P
author_sort Mendonça, L
collection OXFORD
description 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.
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spelling oxford-uuid:248ef07d-5b04-444b-b01b-6169c1a207802022-03-26T11:50:44ZCorrelative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egressJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:248ef07d-5b04-444b-b01b-6169c1a20780EnglishSymplectic ElementsSpringer Nature2021Mendonça, LHowe, AGilchrist, JBSheng, YSun, DKnight, MLZanetti-Domingues, LCBateman, BKrebs, A-SChen, LRadecke, JLi, VDNi, TKounatidis, IKoronfel, MASzynkiewicz, MHarkiolaki, MMartin-Fernandez, MLJames, WZhang, PSince 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.
spellingShingle Mendonça, L
Howe, A
Gilchrist, JB
Sheng, Y
Sun, D
Knight, ML
Zanetti-Domingues, LC
Bateman, B
Krebs, A-S
Chen, L
Radecke, J
Li, VD
Ni, T
Kounatidis, I
Koronfel, MA
Szynkiewicz, M
Harkiolaki, M
Martin-Fernandez, ML
James, W
Zhang, P
Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress
title Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress
title_full Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress
title_fullStr Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress
title_full_unstemmed Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress
title_short Correlative multi-scale cryo-imaging unveils SARS-CoV-2 assembly and egress
title_sort correlative multi scale cryo imaging unveils sars cov 2 assembly and egress
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