Evidence map›Paper›PMID 25723525›Full record

ArticlePLoS neglected tropical diseases2015

Sm29, but not Sm22.6 retains its ability to induce a protective immune response in mice previously exposed to a Schistosoma mansoni infection.

Clarice Carvalho Alves, Neusa Araujo, Viviane Cristina Fernandes dos Santos, Flávia Bubula Couto, Natan R G Assis, Suellen B Morais, Sérgio Costa Oliveira, Cristina Toscano Fonseca

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.9field-weighted citation impact, top 29% 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

14 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  7. A comprehensive and critical overview of schistosomiasis vaccine candidates.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021
    Review
  8. Review
  9. Sm16, AJournal of immunology research · 2019
    Article
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  12. Review
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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

8 authors at 3 institutions in 1 country.

Clarice Carvalho AlvesLaboratório de Esquistossomose, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Barro Preto, Belo Horizonte, Minas Gerais, Brasil.
Neusa AraujoLaboratório de Esquistossomose, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Barro Preto, Belo Horizonte, Minas Gerais, Brasil.
Viviane Cristina Fernandes dos SantosLaboratório de Esquistossomose, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Barro Preto, Belo Horizonte, Minas Gerais, Brasil.
Flávia Bubula CoutoLaboratório de Esquistossomose, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Barro Preto, Belo Horizonte, Minas Gerais, Brasil.
Natan R G AssisInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Pampulha, Belo Horizonte, Minas Gerais, Brasil.
Suellen B MoraisInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Pampulha, Belo Horizonte, Minas Gerais, Brasil.
Sérgio Costa OliveiraInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Pampulha, Belo Horizonte, Minas Gerais, Brasil; Instituto Nacional de Ciências e Tecnologia em Doenças Tropicais (INCT-DT), CNPq, MCT, Salvador, Bahia, Brasil.
Cristina Toscano FonsecaLaboratório de Esquistossomose, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Barro Preto, Belo Horizonte, Minas Gerais, Brasil; Instituto Nacional de Ciências e Tecnologia em Doenças Tropicais (INCT-DT), CNPq, MCT, Salvador, Bahia, Brasil.
Fundação Oswaldo Cruz · BRUniversidade Federal de Minas Gerais · BRInstituto Nacional de Ciência e Tecnologia de Doenças Tropicais · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA vaccine against schistosomiasis would have a great impact in disease elimination. Sm29 and Sm22.6 are two parasite tegument proteins which represent promising antigens to compose a vaccine. These antigens have been associated with resistance to infection and reinfection in individuals living in endemic area for the disease and induced partial protection when evaluated in immunization trials using naïve mice. METHODOLOGY/PRINCIPALS

findingsIn this study we evaluated rSm29 and rSm22.6 ability to induce protection in Balb/c mice that had been previously infected with S. mansoni and further treated with Praziquantel. Our results demonstrate that three doses of the vaccine containing rSm29 were necessary to elicit significant protection (26%-48%). Immunization of mice with rSm29 induced a significant production of IL-2, IFN-γ, IL-17, IL-4; significant production of specific antibodies; increased percentage of CD4+ central memory cells in comparison with infected and treated saline group and increased percentage of CD4+ effector memory cells in comparison with naïve Balb/c mice immunized with rSm29. On the other hand, although immunization with Sm22.6 induced a robust immune response, it failed to induce protection. CONCLUSION/SIGNIFICANCE: Our results demonstrate that rSm29 retains its ability to induce protection in previously infected animals, reinforcing its potential as a vaccine candidate.

Indexed as

AnimalsAntibodies, HelminthAntigens, HelminthCD4-Positive T-LymphocytesCytokinesFemaleHelminth ProteinsHumansImmunizationImmunoglobulin GImmunologic MemoryMembrane GlycoproteinsMiceMice, Inbred BALB CMice, Inbred C57BLSchistosoma mansoniAntibodies, HelminthAntigens, HelminthCytokinesHelminth ProteinsImmunoglobulin GMembrane GlycoproteinsSm29 protein, Schistosoma mansoniVaccines

Identifiers

PMID25723525
PMCPMC4344193
OpenAlexW2083083362

What OpenQuestion holds

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LicenceCC BY
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.