Evidence map›Paper›PMID 23874884›Full record

ArticlePloS one2013

Plasmodium falciparum expressing domain cassette 5 type PfEMP1 (DC5-PfEMP1) bind PECAM1.

Sanne S Berger, Louise Turner, Christian W Wang, Jens E V Petersen, Maria Kraft, John P A Lusingu, Bruno Mmbando, Andrea M Marquard, Dominique B A C Bengtsson, Lars Hviid and 3 more

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Knobs, Adhesion, and Severe Falciparum Malaria.Tropical medicine and infectious disease · 2023
    Review
  4. Ectopic Expression ofMicroorganisms · 2022
    Article
  5. Production of PfEMP1-Specific Mouse Monoclonal Antibodies.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  6. Article
  7. Article
  8. Review
  9. Stringent Selection of KnobbyMicroorganisms · 2020
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  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

13 authors.

Sanne S BergerCentre for Medical Parasitology at Department of International Health, Immunology and Microbiology, Copenhagen University Hospital (Rigshospitalet), University of Copenhagen, Copenhagen, Denmark. sansch@sund.ku.dk
Louise Turner
Christian W Wang
Jens E V Petersen
Maria Kraft
John P A Lusingu
Bruno Mmbando
Andrea M Marquard
Dominique B A C Bengtsson
Lars Hviid
Morten A Nielsen
Thor G Theander
Thomas Lavstsen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Members of the Plasmodium falciparum Erythrocyte Membrane protein 1 (PfEMP1) family expressed on the surface of malaria-infected erythrocytes mediate binding of the parasite to different receptors on the vascular lining. This process drives pathologies, and severe childhood malaria has been associated with the expression of particular subsets of PfEMP1 molecules. PfEMP1 are grouped into subtypes based on upstream sequences and the presence of semi-conserved PfEMP1 domain compositions named domain cassettes (DCs). Earlier studies have indicated that DC5-containing PfEMP1 (DC5-PfEMP1) are more likely to be expressed in children with severe malaria disease than in children with uncomplicated malaria, but these PfEMP1 subtypes only dominate in a relatively small proportion of the children with severe disease. In this study, we have characterised the genomic sequence characteristic for DC5, and show that two genetically different parasite lines expressing DC5-PfEMP1 bind PECAM1, and that anti-DC5-specific antibodies inhibit binding of DC5-PfEMP1-expressing parasites to transformed human bone marrow endothelial cells (TrHBMEC). We also show that antibodies against each of the four domains characteristic for DC5 react with native PfEMP1 expressed on the surface of infected erythrocytes, and that some of these antibodies are cross-reactive between the two DC5-containing PfEMP1 molecules tested. Finally, we confirm that anti-DC5 antibodies are acquired early in life by individuals living in malaria endemic areas, that individuals having high levels of these antibodies are less likely to develop febrile malaria episodes and that the antibody levels correlate positively with hemoglobin levels.

Indexed as

Antibodies, ProtozoanAntigens, ProtozoanBone Marrow CellsCluster AnalysisConserved SequenceEndothelial CellsErythrocytesGene Expression RegulationHumansImmunoglobulin GMalaria, FalciparumPlasmodium falciparumPlatelet Endothelial Cell Adhesion Molecule-1Protein BindingProtein Interaction Domains and MotifsProtozoan ProteinsAntibodies, ProtozoanAntigens, Protozoanerythrocyte membrane protein 1, Plasmodium falciparumImmunoglobulin GPlatelet Endothelial Cell Adhesion Molecule-1Protozoan Proteins

Identifiers

PMID23874884
PMCPMC3706608

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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.