Evidence map›Paper›PMID 27403891›Full record

ArticleScientific reports2016

Host protective ASP-based vaccine against the parasitic nematode Ostertagia ostertagi triggers NK cell activation and mixed IgG1-IgG2 response.

Ana González-Hernández, Stefanie Van Coppernolle, Jimmy Borloo, Frederik Van Meulder, Oonagh Paerewijck, Iris Peelaers, Georges Leclercq, Edwin Claerebout, Peter Geldhof

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 36 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Ana González-HernándezLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Stefanie Van CoppernolleLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Jimmy BorlooLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Frederik Van MeulderLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Oonagh PaerewijckLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Iris PeelaersLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Georges LeclercqLaboratory of Experimental Immunology, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Belgium.
Edwin ClaereboutLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Peter GeldhofLaboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
Ghent University · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mucus-dwelling parasite Ostertagia ostertagi is one of the most important gastrointestinal nematodes in cattle. Our group has previously demonstrated the protective capacity of a vaccine against this parasite based on a native activation-associated secreted protein ASP1 (nASP) in combination with the saponin adjuvant QuilA. The aim of the current study was to analyse the effect of both antigen and adjuvant on the cellular and humoral vaccine-induced immune responses by comparing the native ASP to a recombinant version expressed in Pichia pastoris (pASP) and replacing QuilA by Al(OH)3. Immunization of cattle with the protective nASP+QuilA vaccine was associated with antigen-induced proliferation of natural killer (NK) cells combined with IFN-γ secretion and the induction of a mixed IgG1/IgG2 antibody response. ASP-specific activation and proliferation of NK cells was also observed in mice following the same vaccination regime. Replacing QuilA by Al(OH)3 or nASP by pASP significantly decreased the capacity of the vaccines to trigger both NK cell activation and antibody responses and failed to induce protection against a challenge infection. Reduction of the structurally anchoring disulphide bonds of the nASP completely abolished its ability to induce NK cell activation and antibody responses, highlighting the importance of protein conformation for the immunostimulatory activity.

Indexed as

Adjuvants, ImmunologicAluminum HydroxideAnimalsAntibodies, HelminthAntigens, HelminthCattleCattle DiseasesGastrointestinal DiseasesHelminth ProteinsImmunoglobulin GInterferon-gammaKiller Cells, NaturalLymphocyte ActivationMiceMice, Inbred C57BLOstertagiaAdjuvants, ImmunologicAluminum HydroxideAntibodies, HelminthAntigens, HelminthHelminth ProteinsImmunoglobulin GInterferon-gammaProtozoan VaccinesQuil AQuillaja Saponins

Identifiers

PMID27403891
PMCPMC4941725
OpenAlexW2473743243

What OpenQuestion holds

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Registered trials

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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.