Evidence map›Paper›PMID 34376744›Full record

ArticleScientific reports2021

In silico characterisation of putative Plasmodium falciparum vaccine candidates in African malaria populations.

O Ajibola, M F Diop, A Ghansah, L Amenga-Etego, L Golassa, T Apinjoh, M Randrianarivelojosia, O Maiga-Ascofare, W Yavo, M Bouyou-Akotet and 7 more

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Genetic polymorphism and evidence of signatures of selection in themedRxiv : the preprint server for health sciences · 2024
    Article
  9. Article
  10. 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.

O Ajibola *Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia.
M F Diop *Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia.
A GhansahNoguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Ghana.
L Amenga-EtegoWest African Center for Cell Biology of Infectious Pathogens, University of Ghana, Accra, Ghana.
L GolassaAklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia.
T ApinjohDepartment of Biochemistry and Molecular Biology, University of Buea, Buea, Cameroon.
M RandrianarivelojosiaInstitut Pasteur of Madagascar, Antanarivo, Madagascar.
O Maiga-AscofareBernhard Nocht Institute for Topical Medicine (BNITM), Hamburg, Germany.
W YavoUnite Des Sciences Pharmaceutiques et Biologiques, University Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire.
M Bouyou-AkotetFaculty of Medicine, University of Health Sciences, Libreville, Gabon.
K M OyebolaDepartment of Zoology, University of Lagos, Lagos, Nigeria.
B AndagaluUnited States Army Medical Research Directorate-Africa, Kenya Medical Research Institute/Walter Reed Project, Kisumu, Kenya.
U D'AlessandroMedical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia.
D IshengomaNational Institute for Medical Research (NIMR), Tanga, Tanzania.
A A DjimdeMalaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali.
E KamauDepartment of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA. edwin.kamau.mil@mail.mil.
A Amambua-NgwaMedical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia. angwa@mrc.gm.

Funding

Medical Research Council G0600718Wellcome Trust
6 · The paper itself

Abstract

Genetic diversity of surface exposed and stage specific Plasmodium falciparum immunogenic proteins pose a major roadblock to developing an effective malaria vaccine with broad and long-lasting immunity. We conducted a prospective genetic analysis of candidate antigens (msp1, ama1, rh5, eba175, glurp, celtos, csp, lsa3, Pfsea, trap, conserved chrom3, hyp9, hyp10, phistb, surfin8.2, and surfin14.1) for malaria vaccine development on 2375 P. falciparum sequences from 16 African countries. We described signatures of balancing selection inferred from positive values of Tajima's D for all antigens across all populations except for glurp. This could be as a result of immune selection on these antigens as positive Tajima's D values mapped to regions with putative immune epitopes. A less diverse phistb antigen was characterised with a transmembrane domain, glycophosphatidyl anchors between the N and C- terminals, and surface epitopes that could be targets of immune recognition. This study demonstrates the value of population genetic and immunoinformatic analysis for identifying and characterising new putative vaccine candidates towards improving strain transcending immunity, and vaccine efficacy across all endemic populations.

Indexed as

Antigenic VariationComputer SimulationAfricaAntigens, ProtozoanEpitopesHumansMalaria, FalciparumMalaria VaccinesPlasmodium falciparumProspective StudiesProtozoan ProteinsAntigens, ProtozoanEpitopesMalaria VaccinesProtozoan Proteins

Identifiers

PMID34376744
PMCPMC8355234

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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.