Evidence map›Paper›PMID 22174947›Full record

Trial reportPloS one2011

Antibodies against PfEMP1, RIFIN, MSP3 and GLURP are acquired during controlled Plasmodium falciparum malaria infections in naïve volunteers.

Louise Turner, Christian W Wang, Thomas Lavstsen, Steven B Mwakalinga, Robert W Sauerwein, Cornelus C Hermsen, Thor G Theander

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.8field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 43 citations in OpenAlex.

  1. Genome-Wide Analysis of the Malaria ParasiteFrontiers in immunology · 2020
    Trial
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Global Repertoire of Human Antibodies AgainstFrontiers in immunology · 2020
    Article
  10. Article
  11. Genetic Diversity of theThe American journal of tropical medicine and hygiene · 2018
    Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Trade-offs in antibody repertoires to complex antigens.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Article
  18. Article
  19. Article
  20. 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

7 authors at 4 institutions in 2 countries.

Louise TurnerDepartment of International Health, Centre for Medical Parasitology, University of Copenhagen, Copenhagen, Denmark.
Christian W Wang
Thomas Lavstsen
Steven B Mwakalinga
Robert W Sauerwein
Cornelus C Hermsen
Thor G Theander
Radboud University Nijmegen · NLUniversity of Copenhagen · DKCopenhagen University Hospital · DKRigshospitalet · DK

Funding

Medical Research Council
6 · The paper itself

Abstract

Antibodies to polymorphic antigens expressed during the parasites erythrocytic stages are important mediators of protective immunity against P. falciparum malaria. Therefore, polymorphic blood stage antigens like MSP3, EBA-175 and GLURP and variant surface antigens PfEMP1 and RIFIN are considered vaccine candidates. However, to what extent these antibodies to blood stage antigens are acquired during naive individuals' first infections has not been studied in depth. Using plasma samples collected from controlled experimental P. falciparum infections we show that antibodies against variant surface antigens, PfEMP1 and RIFIN as well as MSP3 and GLURP, are acquired during a single short low density P. falciparum infection in non-immune individuals including strain transcendent PfEMP1 immune responses. These data indicate that the immunogenicity of the variant surface antigens is similar to the less diverse merozoite antigens. The acquisition of a broad and strain transcendent repertoire of PfEMP1 antibodies may reflect a parasite strategy of expressing most or all PfEMP1 variants at liver release optimizing the likelihood of survival and establishment of chronic infections in the new host.

Indexed as

Human ExperimentationAnimalsAntibodies, ProtozoanAntigens, ProtozoanHumansImmunizationImmunoglobulin GLife Cycle StagesLiverMalaria, FalciparumMembrane ProteinsPlasmodium falciparumProtein Structure, TertiaryProtozoan ProteinsAntibodies, ProtozoanAntigens, Protozoanglutamate-rich protein, PlasmodiumImmunoglobulin GMembrane Proteinsmerozoite surface protein 3, PlasmodiumProtozoan ProteinsRIFIN protein, Plasmodium falciparum

Identifiers

PMID22174947
PMCPMC3236238
OpenAlexW2005191103

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.