Evidence map›Paper›PMID 33741598›Full record

ArticleScience advances2021

Single-component, self-assembling, protein nanoparticles presenting the receptor binding domain and stabilized spike as SARS-CoV-2 vaccine candidates.

Linling He, Xiaohe Lin, Ying Wang, Ciril Abraham, Cindy Sou, Timothy Ngo, Yi Zhang, Ian A Wilson, Jiang Zhu

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
6.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

82 citing papers in PubMed, 118 citations in OpenAlex.

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22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Linling HeDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.ORCID 0000-0001-8846-5352
Xiaohe LinDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Ying WangFels Institute for Cancer Research and Molecular Biology, Temple University, Philadelphia, PA 19140, USA.
Ciril AbrahamFels Institute for Cancer Research and Molecular Biology, Temple University, Philadelphia, PA 19140, USA.
Cindy SouDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Timothy NgoDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Yi ZhangFels Institute for Cancer Research and Molecular Biology, Temple University, Philadelphia, PA 19140, USA.
Ian A WilsonDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.ORCID 0000-0002-6469-2419
Jiang ZhuDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. jiang@scripps.edu.ORCID 0000-0003-0259-7157
Scripps Research Institute · USTemple University · US

Funding

Uncleaved prefusion-optimized trimers on nanoparticles as HIV vaccinesR01AI140844 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI ZHU, JIANG · 2019 to 2023
$4.9M
Rational design and B cell responses of HIV epitope vaccinesR01AI129698 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI ZHU, JIANG · 2017 to 2021
$3.2M
NIAID NIH HHS R01 AI129698NIAID NIH HHS R01 AI140844
6 · The paper itself

Abstract

Vaccination against SARS-CoV-2 provides an effective tool to combat the COVID-19 pandemic. Here, we combined antigen optimization and nanoparticle display to develop vaccine candidates for SARS-CoV-2. We first displayed the receptor-binding domain (RBD) on three self-assembling protein nanoparticle (SApNP) platforms using the SpyTag/SpyCatcher system. We then identified heptad repeat 2 (HR2) in S2 as the cause of spike metastability, designed an HR2-deleted glycine-capped spike (S2GΔHR2), and displayed S2GΔHR2 on SApNPs. An antibody column specific for the RBD enabled tag-free vaccine purification. In mice, the 24-meric RBD-ferritin SApNP elicited a more potent neutralizing antibody (NAb) response than the RBD alone and the spike with two stabilizing proline mutations in S2 (S2P). S2GΔHR2 elicited twofold higher NAb titers than S2P, while S2GΔHR2 SApNPs derived from multilayered E2p and I3-01v9 60-mers elicited up to 10-fold higher NAb titers. The S2GΔHR2-presenting I3-01v9 SApNP also induced critically needed T cell immunity, thereby providing a promising vaccine candidate.

Indexed as

COVID-19 VaccinesNanoparticlesSARS-CoV-2Spike Glycoprotein, CoronavirusAnimalsAntibodies, NeutralizingAntibodies, ViralCOVID-19HEK293 CellsHumansImmunogenicity, VaccineMiceMice, Inbred BALB CProtein DomainsAntibodies, NeutralizingAntibodies, ViralCOVID-19 VaccinesSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID33741598
PMCPMC7978432
OpenAlexW3137628368

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.