Evidence map›Paper›PMID 31425514›Full record

ArticlePLoS neglected tropical diseases2019

Antibodies to Plasmodium vivax reticulocyte binding protein 2b are associated with protection against P. vivax malaria in populations living in low malaria transmission regions of Brazil and Thailand.

Wen-Qiang He, Stephan Karl, Michael T White, Wang Nguitragool, Wuelton Monteiro, Andrea Kuehn, Jakub Gruszczyk, Camila T França, Jetsumon Sattabongkot, Marcus V G Lacerda and 2 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2019. 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
4.4field-weighted citation impact, top 6% 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, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Identification of novelFrontiers in cellular and infection microbiology · 2023
    Article
  4. Review
  5. Article
  6. Article
  7. Frontiers in immunology · 2022
    Review
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Review
  13. Article
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

12 authors at 5 institutions in 6 countries.

Wen-Qiang HeInfection and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria Australia.
Stephan KarlDepartment of Medical Biology, University of Melbourne, Melbourne, Australia.
Michael T WhiteMalaria Parasites and Hosts Unit, Department of Parasites & Insect Vectors, Institut Pasteur, Paris, France.
Wang NguitragoolDepartment of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok Thailand.
Wuelton MonteiroFundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil.
Andrea KuehnFundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil.
Jakub GruszczykInfection and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria Australia.ORCID 0000-0003-4536-2964
Camila T FrançaDepartment of Medical Biology, University of Melbourne, Melbourne, Australia.
Jetsumon SattabongkotMahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Marcus V G LacerdaFundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil.
Wai-Hong ThamInfection and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria Australia.
Ivo MuellerDepartment of Medical Biology, University of Melbourne, Melbourne, Australia.ORCID 0000-0001-6554-6889
The University of Melbourne · AUFundação de Medicina Tropical · BRInstitut Pasteur · FRMahidol University · THWalter and Eliza Hall Institute of Medical Research · AU

Funding

Discovery & validation of novel P. vivax antigens for identification and monitoriR01AI104822 · NIAID · MAHIDOL UNIVERSITY · PI PRACHUMSRI, JETSUMON · 2013 to 2017
$672k
Howard Hughes Medical InstituteNIAID NIH HHS R01 AI104822Wellcome TrustWellcome Trust 208693/Z/17/Z
6 · The paper itself

Abstract

backgroundThe Plasmodium vivax Reticulocyte Binding Protein (PvRBP) family is involved in red blood cell recognition and members of this family are potential targets for antibodies that may block P. vivax invasion. To date, the acquisition of immunity against PvRBPs in low malaria transmission settings and in a broad age group of exposed individuals has not been investigated. METHODOLOGY/PRINCIPAL

findingsTotal IgG antibody levels to six members of the PvRBP family (PvRBP1a, PvRBP1b, PvRBP2a, PvRBP2b, a non-binding fragment of PvRBP2c (PvRBP2cNB) and PvRBP2-P2) were measured in samples collected from individuals living in two regions of low P. vivax endemicity in Brazil and Thailand. In both settings, levels of total IgG to PvRBP1a, PvRBP2b, PvRBP2cNB, and PvRBP2P-2 increased significantly with age (rho = 0.17-0.49; P<0.001). IgG responses to PvRBP1a, PvRBP2b and PvRBP2cNB were significantly higher in infected individuals by using Wilcoxon's signed-rank test (P<0.001). Of the six PvRBPs examined, only antibodies to PvRBP2b were associated with protection against clinical malaria in both settings. CONCLUSION/SIGNIFICANCE: Our results indicate that PvRBP2b warrants further preclinical development as a blood-stage vaccine candidate against P. vivax. Total IgG responses to PvRBPs were also shown to be promising immunological markers of exposure to P. vivax infection.

Indexed as

AdolescentAdultAgedAged, 80 and overAge FactorsAntibodies, ProtozoanBrazilChildChild, PreschoolCohort StudiesDisease Transmission, InfectiousFemaleHumansImmunoglobulin GInfantInfant, NewbornAntibodies, ProtozoanImmunoglobulin GMembrane ProteinsProtozoan Proteinsreticulocyte-binding protein, Plasmodium vivax

Identifiers

PMID31425514
PMCPMC6726234
OpenAlexW2969627647

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.