Enhanced protective immunity against SARS-CoV-2 elicited by a VSV vector expressing a chimeric spike protein.
Enhanced protective immunity against SARS-CoV-2 elicited by a VSV vector expressing a chimeric spike protein.
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表达嵌合刺突蛋白的 VSV 载体可增强针对 SARS-CoV-2 的保护性免疫力
DOI:
10.1038/s41392-021-00797-9
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发表时间:
2021-11-10
影响因子:
39.3
通讯作者:
Zheng A
中科院分区:
文献类型:
--
作者:
Li H;Zhang Y;Li D;Deng YQ;Xu H;Zhao C;Liu J;Wen D;Zhao J;Li Y;Wu Y;Liu S;Liu J;Hao J;Yuan F;Duo S;Qin CF;Zheng A
SARS-CoV-2 and SARS-CoV are genetically related coronavirus and share the same cellular receptor ACE2. By replacing the VSV glycoprotein with the spikes (S) of SARS-CoV-2 and SARS-CoV, we generated two replication-competent recombinant viruses, rVSV-SARS-CoV-2 and rVSV-SARS-CoV. Using wild-type and human ACE2 (hACE2) knock-in mouse models, we found a single dose of rVSV-SARS-CoV could elicit strong humoral immune response via both intranasal (i.n.) and intramuscular (i.m.) routes. Despite the high genetic similarity between SARS-CoV-2 and SARS-CoV, no obvious cross-neutralizing activity was observed in the immunized mice sera. In macaques, neutralizing antibody (NAb) titers induced by one i.n. dose of rVSV-SARS-CoV-2 were eight-fold higher than those by a single i.m. dose. Thus, our data indicates that rVSV-SARS-CoV-2 might be suitable for i.n. administration instead of the traditional i.m. immunization in human. Because rVSV-SARS-CoV elicited significantly stronger NAb responses than rVSV-SARS-CoV-2 in a route-independent manner, we generated a chimeric antigen by replacing the receptor binding domain (RBD) of SARS-CoV S with that from the SARS-CoV-2. rVSV expressing the chimera (rVSV-SARS-CoV/2-RBD) induced significantly increased NAbs against SARS-CoV-2 in mice and macaques than rVSV-SARS-CoV-2, with a safe Th1-biased response. Serum immunized with rVSV-SARS-CoV/2-RBD showed no cross-reactivity with SARS-CoV. hACE2 mice receiving a single i.m. dose of either rVSV-SARS-CoV-2 or rVSV-SARS-CoV/2-RBD were fully protected against SARS-CoV-2 challenge without obvious lesions in the lungs. Our results suggest that transplantation of SARS-CoV-2 RBD into the S protein of SARS-CoV might be a promising antigen design for COVID-19 vaccines.
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影响因子:
64.5
作者:
Hou, Yixuan J.;Okuda, Kenichi;Baric, Ralph S.
通讯作者:
Baric, Ralph S.
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:
28.3
作者:
Gorbalenya, Alexander E.;Baker, Susan C.;Ziebuhr, John
通讯作者:
Ziebuhr, John
DOI:
10.1016/s0140-6736(16)32621-6
发表时间:
2017-02-04
期刊:
Lancet (London, England)
影响因子:
--
作者:
Henao-Restrepo AM;Camacho A;Longini IM;Watson CH;Edmunds WJ;Egger M;Carroll MW;Dean NE;Diatta I;Doumbia M;Draguez B;Duraffour S;Enwere G;Grais R;Gunther S;Gsell PS;Hossmann S;Watle SV;Kondé MK;Kéïta S;Kone S;Kuisma E;Levine MM;Mandal S;Mauget T;Norheim G;Riveros X;Soumah A;Trelle S;Vicari AS;Røttingen JA;Kieny MP
通讯作者:
Kieny MP
影响因子:
64.5
作者:
Dai, Lianpan;Zheng, Tianyi;Gao, George F.
通讯作者:
Gao, George F.