Evidence map›Paper›PMID 35609032›Full record

ArticlePloS one2022

Immunization with SARS-CoV-2 Nucleocapsid protein triggers a pulmonary immune response in rats.

Everidiene K V B Silva, Camila G Bomfim, Ana P Barbosa, Paloma Noda, Irene L Noronha, Bianca H V Fernandes, Rafael R G Machado, Edison L Durigon, Sergio Catanozi, Letícia G Rodrigues and 9 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 10% 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

17 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
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  4. Immunogenicity evaluation of altSonflex1-2-3Frontiers in immunology · 2025
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  9. Review
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  11. Observational
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Nucleocapsid as a next-generation COVID-19 vaccine candidate.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
    Article
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

19 authors at 2 institutions in 1 country.

Everidiene K V B SilvaRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Camila G BomfimDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Ana P BarbosaDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Paloma NodaRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Irene L NoronhaRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Bianca H V FernandesLaboratório de Controle Genético e Sanitário, Diretoria Técnica de Apoio ao Ensino e Pesquisa, Faculdade de Medicina da Universidade de São Paulo, Sao Paulo, Brazil.
Rafael R G MachadoDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.ORCID 0000-0001-6974-5092
Edison L DurigonDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Sergio CatanoziLaboratorio de Lipides (LIM-10), Hospital das Clinicas (HCFMUSP) da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil.
Letícia G RodriguesLaboratorio de Lipides (LIM-10), Hospital das Clinicas (HCFMUSP) da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil.
Fabiana PieroniLabinbraz Comercial Ltda. - Wiener lab, Sao Paulo, Brazil.
Sérgio G LimaLabinbraz Comercial Ltda. - Wiener lab, Sao Paulo, Brazil.
Walcy R TeodoroRheumatology Division of the Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo - SP, Sao Paulo, Brazil.
Zelita A J QueirozRheumatology Division of the Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo - SP, Sao Paulo, Brazil.
Lizandre K R SilveiraRheumatology Division of the Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo - SP, Sao Paulo, Brazil.
Ives Charlie-SilvaDepartment of Pharmacology, Institute of Biomedical Sciences, Universidade de Sao Paulo, Sao Paulo, Brazil.ORCID 0000-0002-7572-2767
Vera L CapelozziRheumatology Division of the Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo - SP, Sao Paulo, Brazil.
Cristiane R GuzzoDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Camilla FanelliRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.ORCID 0000-0003-4425-7708
Universidade de São Paulo · BRHospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The SARS-CoV-2 pandemic have been affecting millions of people worldwide, since the beginning of 2020. COVID-19 can cause a wide range of clinical symptoms, which varies from asymptomatic presentation to severe respiratory insufficiency, exacerbation of immune response, disseminated microthrombosis and multiple organ failure, which may lead to dead. Due to the rapid spread of SARS-CoV-2, the development of vaccines to minimize COVID-19 severity in the world population is imperious. One of the employed techniques to produce vaccines against emerging viruses is the synthesis of recombinant proteins, which can be used as immunizing agents. Based on the exposed, the aim of the present study was to verify the systemic and immunological effects of IM administration of recombinant Nucleocapsid protein (NP), derived from SARS-CoV-2 and produced by this research group, in 2 different strains of rats (Rattus norvegicus); Wistar and Lewis. For this purpose, experimental animals received 4 injections of NP, once a week, and were submitted to biochemical and histological analysis. Our results showed that NP inoculations were safe for the animals, which presented no clinical symptoms of worrying side effects, nor laboratorial alterations in the main biochemical and histological parameters, suggesting the absence of toxicity induced by NP. Moreover, NP injections successfully triggered the production of specific anti-SARS-CoV-2 IgG antibodies by both Wistar and Lewis rats, showing the sensitization to have been well sufficient for the immunization of these strains of rats. Additionally, we observed the local lung activation of the Bronchus-Associated Lymphoid Tissue (BALT) of rats in the NP groups, suggesting that NP elicits specific lung immune response. Although pre-clinical and clinical studies are still required, our data support the recombinant NP produced by this research group as a potential immunizing agent for massive vaccination, and may represent advantages upon other recombinant proteins, since it seems to induce specific pulmonary protection.

Indexed as

COVID-19SARS-CoV-2AnimalsAntibodies, ViralCOVID-19 VaccinesHumansImmunityImmunizationLungNucleocapsid ProteinsRatsRats, Inbred LewRats, WistarRecombinant ProteinsSpike Glycoprotein, CoronavirusVaccinationAntibodies, ViralCOVID-19 VaccinesNucleocapsid ProteinsRecombinant ProteinsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID35609032
PMCPMC9129034
OpenAlexW4281391361

What OpenQuestion holds

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LicenceCC BY
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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.