Evidence map›Paper›PMID 26147206›Full record

ArticlePloS one2015

Analysis of a Multi-component Multi-stage Malaria Vaccine Candidate--Tackling the Cocktail Challenge.

Alexander Boes, Holger Spiegel, Nadja Voepel, Gueven Edgue, Veronique Beiss, Stephanie Kapelski, Rolf Fendel, Matthias Scheuermayer, Gabriele Pradel, Judith M Bolscher and 7 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

27 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
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  10. An AMA1/MSP1Molecular biotechnology · 2020
    Article
  11. Review
  12. [Development of malaria vaccines-state of the art].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2020
    Review
  13. Review
  14. Article
  15. The N-Terminal Region ofFrontiers in immunology · 2019
    Article
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  20. Review
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

17 authors at 5 institutions in 2 countries.

Alexander BoesFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Holger SpiegelFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Nadja VoepelFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Gueven EdgueFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Veronique BeissFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Stephanie KapelskiFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Rolf FendelFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany; RWTH Aachen University, Institute of Molecular Biotechnology, Aachen, Germany.
Matthias ScheuermayerZentrum für Infektionsforschung, Wuerzburg, Germany.
Gabriele PradelRWTH Aachen University, Institute of Molecular Biotechnology, Aachen, Germany.
Judith M BolscherTropIQ Health Sciences, Nijmegen, The Netherlands.
Marije C BehetRadboud university medical center, Nijmegen, The Netherlands.
Koen J DecheringTropIQ Health Sciences, Nijmegen, The Netherlands.
Cornelus C HermsenRadboud university medical center, Nijmegen, The Netherlands.
Robert W SauerweinTropIQ Health Sciences, Nijmegen, The Netherlands; Radboud university medical center, Nijmegen, The Netherlands.
Stefan SchillbergFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Andreas ReimannFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
Rainer FischerFraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany; RWTH Aachen University, Institute of Molecular Biotechnology, Aachen, Germany.
Fraunhofer Institute for Molecular Biology and Applied Ecology · DERadboud University Medical Center · NLRWTH Aachen University · DETropIQ Health Sciences · NLRadboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Combining key antigens from the different stages of the P. falciparum life cycle in the context of a multi-stage-specific cocktail offers a promising approach towards the development of a malaria vaccine ideally capable of preventing initial infection, the clinical manifestation as well as the transmission of the disease. To investigate the potential of such an approach we combined proteins and domains (11 in total) from the pre-erythrocytic, blood and sexual stages of P. falciparum into a cocktail of four different components recombinantly produced in plants. After immunization of rabbits we determined the domain-specific antibody titers as well as component-specific antibody concentrations and correlated them with stage specific in vitro efficacy. Using purified rabbit immune IgG we observed strong inhibition in functional in vitro assays addressing the pre-erythrocytic (up to 80%), blood (up to 90%) and sexual parasite stages (100%). Based on the component-specific antibody concentrations we calculated the IC50 values for the pre-erythrocytic stage (17-25 μg/ml), the blood stage (40-60 μg/ml) and the sexual stage (1.75 μg/ml). While the results underline the feasibility of a multi-stage vaccine cocktail, the analysis of component-specific efficacy indicates significant differences in IC50 requirements for stage-specific antibody concentrations providing valuable insights into this complex scenario and will thereby improve future approaches towards malaria vaccine cocktail development regarding the selection of suitable antigens and the ratios of components, to fine tune overall and stage-specific efficacy.

Indexed as

AnimalsAntibodies, ProtozoanImmunizationMalaria, FalciparumMalaria VaccinesPlasmodium falciparumRabbitsAntibodies, ProtozoanMalaria Vaccines

Identifiers

PMID26147206
PMCPMC4492585
OpenAlexW1624371787

What OpenQuestion holds

Textmetadata
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.