Erythro-VLPs: Anchoring SARS-CoV-2 spike proteins in erythrocyte liposomes.
Erythro-VLPs: Anchoring SARS-CoV-2 spike proteins in erythrocyte liposomes.
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DOI:
10.1371/journal.pone.0263671
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发表时间:
2022
期刊:
影响因子:
3.7
通讯作者:
Rheinstädter MC
中科院分区:
文献类型:
--
作者:
Himbert S;Gastaldo IP;Ahmed R;Pomier KM;Cowbrough B;Jahagirdar D;Ros S;Juhasz J;Stöver HDH;Ortega J;Melacini G;Bowdish DME;Rheinstädter MC
Novel therapeutic strategies are needed to control the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) pandemic. Here, we present a protocol to anchor the SARS-CoV-2 spike (S-)protein in the cytoplasmic membranes of erythrocyte liposomes. A surfactant was used to stabilize the S-protein’s structure in the aqueous environment before insertion and to facilitate reconstitution of the S-proteins in the erythrocyte membranes. The insertion process was studied using coarse grained Molecular Dynamics (MD) simulations. Liposome formation and S-protein anchoring was studied by dynamic light scattering (DLS), ELV-protein co-sedimentation assays, fluorescent microcopy and cryo-TEM. The Erythro-VLPs (erythrocyte based virus like particles) have a well defined size of ∼200 nm and an average protein density on the outer membrane of up to ∼300 proteins/μm2. The correct insertion and functional conformation of the S-proteins was verified by dose-dependent binding to ACE-2 (angiotensin converting enzyme 2) in biolayer interferometry (BLI) assays. Seroconversion was observed in a pilot mouse trial after 14 days when administered intravenously, based on enzyme-linked immunosorbent assays (ELISA). This red blood cell based platform can open novel possibilities for therapeutics for the coronavirus disease (COVID-19) including variants, and other viruses in the future.
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DOI:
10.3390/v13040697
发表时间:
2021-04-16
期刊:
Viruses
影响因子:
--
作者:
Huynh A;Arnold DM;Smith JW;Moore JC;Zhang A;Chagla Z;Harvey BJ;Stacey HD;Ang JC;Clare R;Ivetic N;Chetty VT;Bowdish DME;Miller MS;Kelton JG;Nazy I
通讯作者:
Nazy I
影响因子:
4.1
作者:
Himbert, Sebastian;Blacker, Matthew J.;Rheinstadter, Maikel C.
通讯作者:
Rheinstadter, Maikel C.
影响因子:
3.4
作者:
Himbert, Sebastian;Zhang, Lili;Rheinstadter, Maikel C.
通讯作者:
Rheinstadter, Maikel C.
影响因子:
64.8
作者:
Li W;Moore MJ;Vasilieva N;Sui J;Wong SK;Berne MA;Somasundaran M;Sullivan JL;Luzuriaga K;Greenough TC;Choe H;Farzan M
通讯作者:
Farzan M
影响因子:
3.5
作者:
Alsop RJ;Himbert S;Dhaliwal A;Schmalzl K;Rheinstädter MC
通讯作者:
Rheinstädter MC