Evidence map›Paper›PMID 25703704›Full record

ArticleCellular microbiology2015

Discovery of a novel and conserved Plasmodium falciparum exported protein that is important for adhesion of PfEMP1 at the surface of infected erythrocytes.

Adéla Nacer, Aurélie Claes, Amy Roberts, Christine Scheidig-Benatar, Hiroshi Sakamoto, Mehdi Ghorbal, Jose-Juan Lopez-Rubio, Denise Mattei

Abstract read
In one paragraph

Article in Cellular microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Plasmodium falciparum In Vitro Drug Resistance Selections and Gene Editing.Methods in molecular biology (Clifton, N.J.) · 2019
    Article
  6. Review
  7. Article
  8. Article
  9. TheeLife · 2017
    Article
  10. Review
  11. 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

8 authors.

Adéla NacerBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Aurélie ClaesBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Amy RobertsBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Christine Scheidig-BenatarBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Hiroshi SakamotoBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Mehdi GhorbalBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Jose-Juan Lopez-RubioBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.
Denise MatteiBiology of Parasite-Host Interactions Unit, Department of Parasites and Insect Vectors, Institut Pasteur, 25, Rue du Dr. Roux, Paris, F-75015, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plasmodium falciparum virulence is linked to its ability to sequester in post-capillary venules in the human host. Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) is the main variant surface antigen implicated in this process. Complete loss of parasite adhesion is linked to a large subtelomeric deletion on chromosome 9 in a number of laboratory strains such as D10 and T9-96. Similar to the cytoadherent reference line FCR3, D10 strain expresses PfEMP1 on the surface of parasitized erythrocytes, however without any detectable cytoadhesion. To investigate which of the deleted subtelomeric genes may be implicated in parasite adhesion, we selected 12 genes for D10 complementation studies that are predicted to code for proteins exported to the red blood cell. We identified a novel single copy gene (PF3D7_0936500) restricted to P. falciparum that restores adhesion to CD36, termed here virulence-associated protein 1 (Pfvap1). Protein knockdown and gene knockout experiments confirmed a role of PfVAP1 in the adhesion process in FCR3 parasites. PfVAP1 is co-exported with PfEMP1 into the host cell via vesicle-like structures called Maurer's clefts. This study identifies a novel highly conserved parasite molecule that contributes to parasite virulence possibly by assisting PfEMP1 to establish functional adhesion at the host cell surface.

Indexed as

Cell AdhesionErythrocytesGene Knockdown TechniquesGene Knockout TechniquesGenetic Complementation TestHumansPlasmodium falciparumProtein BindingProtozoan ProteinsSequence Deletionerythrocyte membrane protein 1, Plasmodium falciparumProtozoan Proteins

Identifiers

PMID25703704
PMCPMC4654329

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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.