Evidence map›Paper›PMID 23684840›Full record

ArticleVaccine2013

Functional evaluation of malaria Pfs25 DNA vaccine by in vivo electroporation in olive baboons.

Rajesh Kumar, Ruth Nyakundi, Thomas Kariuki, Hastings Ozwara, Onkoba Nyamongo, Godfree Mlambo, Barry Ellefsen, Drew Hannaman, Nirbhay Kumar

Abstract read
In one paragraph

Article in Vaccine, 2013. 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
4.8field-weighted citation impact, top 5% 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, 30 citations in OpenAlex.

  1. Article
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  4. Article
  5. A review of the tortuous path of nonviral gene delivery and recent progress.International journal of biological macromolecules · 2021
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Electroporation-mediated gene delivery.Advances in genetics · 2015
    Article
  15. Article
  16. Article
  17. 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

9 authors at 4 institutions in 2 countries.

Rajesh KumarDepartment of Tropical Medicine, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street (SL-17), New Orleans, LA 70112, USA.
Ruth Nyakundi
Thomas Kariuki
Hastings Ozwara
Onkoba Nyamongo
Godfree Mlambo
Barry Ellefsen
Drew Hannaman
Nirbhay Kumar
Institute of Primate Research · KEIchor Medical Systems (United States) · USJohns Hopkins University · USTulane University · US

Funding

A DNA VACCINE TO PREVENT TRANSMISSION OF HUMAN MALARIAR01AI047089 · NIAID · TULANE UNIVERSITY OF LOUISIANA · PI KUMAR, NIRBHAY · 2000 to 2011
$3.6M
Malaria Vaccine Adjuvant Immunogenicity and SafetyR21AI101427 · NIAID · TULANE UNIVERSITY OF LOUISIANA · PI KUMAR, NIRBHAY · 2012 to 2013
$415k
NIAID NIH HHS AI101427NIAID NIH HHS AI47089NIAID NIH HHS R01 AI047089NIAID NIH HHS R21 AI101427
6 · The paper itself

Abstract

Plasmodium falciparum Pfs25 antigen, expressed on the surface of zygotes and ookinetes, is one of the leading targets for the development of a malaria transmission-blocking vaccine (TBV). Our laboratory has been evaluating DNA plasmid based Pfs25 vaccine in mice and non-human primates. Previously, we established that in vivo electroporation (EP) delivery is an effective method to improve the immunogenicity of DNA vaccine encoding Pfs25 in mice. In order to optimize the in vivo EP procedure and test for its efficacy in more clinically relevant larger animal models, we employed in vivo EP to evaluate the immune response and protective efficacy of Pfs25 encoding DNA vaccine in nonhuman primates (olive baboons, Papio anubis). The results showed that at a dose of 2.5mg DNA vaccine, antibody responses were significantly enhanced with EP as compared to without EP resulting in effective transmission blocking efficiency. Similar immunogenicity enhancing effect of EP was also observed with lower doses (0.5mg and 1mg) of DNA plasmids. Further, final boosting with a single dose of recombinant Pfs25 protein resulted in dramatically enhanced antibody titers and significantly increased functional transmission blocking efficiency. Our study suggests priming with DNA vaccine via EP along with protein boost regimen as an effective method to elicit potent immunogenicity of malaria DNA vaccines in nonhuman primates and provides the basis for further evaluation in human volunteers.

Indexed as

ElectroporationAnimalsAntibodies, ProtozoanAntibody AffinityAntibody FormationAntigens, ProtozoanDose-Response Relationship, ImmunologicFemaleImmunization, SecondaryMalaria, FalciparumMalaria VaccinesMicePapio anubisPlasmidsPlasmodium falciparumProtozoan ProteinsAntibodies, ProtozoanAntigens, ProtozoanMalaria VaccinesPfs25 protein, Plasmodium falciparumProtozoan ProteinsRecombinant ProteinsVaccines, DNA

Identifiers

PMID23684840
PMCPMC3686897
OpenAlexW2072162271

What OpenQuestion holds

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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.