Evidence map›Paper›PMID 34774590›Full record

ArticleInternational journal of biological macromolecules2021

Nanoparticular CpG-adjuvanted SARS-CoV-2 S1 protein elicits broadly neutralizing and Th1-biased immunoreactivity in mice.

Hui-Tsu Lin, Cheng-Cheung Chen, Der-Jiang Chiao, Tein-Yao Chang, Xin-An Chen, Jenn-Jong Young, Szu-Cheng Kuo

Open access · greenAbstract read
In one paragraph

Article in International journal of biological macromolecules, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.0field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 17 citations in OpenAlex.

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  6. Mutations in SARS-CoV-2: Insights on structure, variants, vaccines, and biomedical interventions.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Hui-Tsu LinInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
Cheng-Cheung ChenInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC; Graduate Institute of Medical Science, National Defense Medical Center, Taipei 11490, Taiwan, ROC.
Der-Jiang ChiaoInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
Tein-Yao ChangInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
Xin-An ChenInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC.
Jenn-Jong YoungInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC. Electronic address: jjyoung@ms49.hinet.net.
Szu-Cheng KuoInstitute of Preventive Medicine, National Defense Medical Center, New Taipei City 23742, Taiwan, ROC; Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei 11490, Taiwan, ROC. Electronic address: szucheng1234@gmail.com.
National Defense Medical Center · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The spike (S) protein is a leading vaccine candidate against SARS-CoV-2 infection. The S1 domain of S protein, which contains a critical receptor-binding domain (RBD) antigen, potentially induces protective immunoreactivities against SARS-CoV-2. In this study, we presented preclinical evaluations of a novel insect cell-derived SARS-CoV-2 recombinant S1 (rS1) protein as a potent COVID-19 vaccine candidate. The native antigenicity of rS1 was characterized by enzyme-linked immunosorbent assay with a neutralizing monoclonal antibody targeting the RBD antigen. To improve its immunogenicity, rS1-adjuvanted with fucoidan/trimethylchitosan nanoparticles (FUC-TMC NPs) and cytosine-phosphate-guanosine-oligodeoxynucleotides (CpG-ODNs) were investigated using a mouse model. The S1-specific immunoglobulin G (IgG) titers, FluoroSpot assay, pseudovirus- and prototype SARS-CoV-2-based neutralization assays were assessed. The results showed that the rS1/CpG/ FUC-TMC NPs (rS1/CpG/NPs) formulation induced a broad-spectrum IgG response with potent, long-lasting, and cross-protective neutralizing activity against the emerging SARS-CoV-2 variant of concern, along with a Th1-biased cellular response. Thus, the rS1/CpG/NPs formulation presents a promising vaccination approach against COVID-19.

Indexed as

Adjuvants, ImmunologicCOVID-19 VaccinesImmunogenicity, VaccineNanoparticlesOligodeoxyribonucleotidesSpike Glycoprotein, CoronavirusAnimalsAntibodies, ViralBroadly Neutralizing AntibodiesMiceMice, Inbred BALB CSARS-CoV-2Th1 CellsAdjuvants, ImmunologicAntibodies, ViralBroadly Neutralizing AntibodiesCOVID-19 VaccinesCPG-oligonucleotideOligodeoxyribonucleotidesSpike Glycoprotein, CoronavirusCpG adjuvantFucoidan-trimethylchitosan nanoparticlesImmunogenicity enhancementNeutralizing antibodyRecombinant S1 proteinSARS-CoV-2 infectionTh1-biased cellular immune responses

Identifiers

PMID34774590
PMCPMC8580573
OpenAlexW3211990486

What OpenQuestion holds

Textmetadata
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.