SARS-CoV-2 spike glycoprotein vaccine candidate NVX-CoV2373 immunogenicity in baboons and protection in mice.
SARS-CoV-2 spike glycoprotein vaccine candidate NVX-CoV2373 immunogenicity in baboons and protection in mice.
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SARS-CoV-2刺突糖蛋白疫苗候选物NVX-CoV 2373在狒狒中的免疫原性和在小鼠中的保护性。
DOI:
10.1038/s41467-020-20653-8
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发表时间:
2021-01-14
影响因子:
16.6
通讯作者:
Smith G
中科院分区:
文献类型:
--
作者:
Tian JH;Patel N;Haupt R;Zhou H;Weston S;Hammond H;Logue J;Portnoff AD;Norton J;Guebre-Xabier M;Zhou B;Jacobson K;Maciejewski S;Khatoon R;Wisniewska M;Moffitt W;Kluepfel-Stahl S;Ekechukwu B;Papin J;Boddapati S;Jason Wong C;Piedra PA;Frieman MB;Massare MJ;Fries L;Bengtsson KL;Stertman L;Ellingsworth L;Glenn G;Smith G
The COVID-19 pandemic continues to spread throughout the world with an urgent need for a safe and protective vaccine to effectuate herd protection and control the spread of SARS-CoV-2. Here, we report the development of a SARS-CoV-2 subunit vaccine (NVX-CoV2373) from the full-length spike (S) protein that is stable in the prefusion conformation. NVX-CoV2373 S form 27.2-nm nanoparticles that are thermostable and bind with high affinity to the human angiotensin-converting enzyme 2 (hACE2) receptor. In mice, low-dose NVX-CoV2373 with saponin-based Matrix-M adjuvant elicit high titer anti-S IgG that blocks hACE2 receptor binding, neutralize virus, and protects against SARS-CoV-2 challenge with no evidence of vaccine-associated enhanced respiratory disease. NVX-CoV2373 also elicits multifunctional CD4+ and CD8+ T cells, CD4+ follicular helper T cells (Tfh), and antigen-specific germinal center (GC) B cells in the spleen. In baboons, low-dose levels of NVX-CoV2373 with Matrix-M was also highly immunogenic and elicited high titer anti-S antibodies and functional antibodies that block S-protein binding to hACE2 and neutralize virus infection and antigen-specific T cells. These results support the ongoing phase 1/2 clinical evaluation of the safety and immunogenicity of NVX-CoV2373 with Matrix-M (NCT04368988). Here, the authors characterize a SARS-CoV-2 subunit vaccine candidate that contains full-length spike protein stabilized in its prefusion conformation, and show immunogenicity in baboons and protection in mice with Matrix-M adjuvanted vaccine.
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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
作者:
Sorzano, COS;Marabini, R;Pascual-Montano, A
通讯作者:
Pascual-Montano, A
DOI:
10.1073/pnas.1407087111
发表时间:
2014-10-21
影响因子:
11.1
作者:
Millet, Jean Kaoru;Whittaker, Gary R.
通讯作者:
Whittaker, Gary R.
影响因子:
158.5
作者:
Keech, Cheryl;Albert, Gary;Glenn, Gregory M.
通讯作者:
Glenn, Gregory M.
影响因子:
5.5
作者:
Bengtsson, Karin Lovgren;Song, Haifeng;Smith, Gale
通讯作者:
Smith, Gale