Evidence map›Paper›PMID 26118955›Full record

ArticleCellular microbiology2015

Plasmodium falciparum adhesion domains linked to severe malaria differ in blockade of endothelial protein C receptor.

Sowmya Sampath, Andrew Jay Brazier, Marion Avril, Maria Bernabeu, Vladimir Vigdorovich, Anjali Mascarenhas, Edwin Gomes, D Noah Sather, Charles T Esmon, Joseph D Smith

Open access · bronzeAbstract 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 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
6.6field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Frontiers in cellular and infection microbiology · 2022
    Article
  8. Article
  9. Review
  10. Mediterranean Diet: Lipids, Inflammation, and Malaria Infection.International journal of molecular sciences · 2020
    Review
  11. Review
  12. Testing the effect of PAR1 inhibitors onWellcome open research · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Infected erythrocytes expressing DC13 PfEMP1 differ from recombinant proteins in EPCR-binding function.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

10 authors at 4 institutions in 2 countries.

Sowmya SampathCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Andrew Jay BrazierCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Marion AvrilCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Maria BernabeuCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Vladimir VigdorovichCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Anjali MascarenhasDepartment of Chemistry, University of Washington, Seattle, WA, USA.
Edwin GomesDepartment of Medicine, Goa Medical College and Hospital, Bambolim, Goa, India.
D Noah SatherCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Charles T EsmonCoagulation Biology Laboratory, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.
Joseph D SmithCenter for Infectious Disease Research (formerly Seattle Biomedical Research Institute), Seattle, WA, USA.
Center for Infectious Disease Research · USUniversity of Washington · USGoa Medical College · INOklahoma Medical Research Foundation · US

Funding

Shared TechnologyU19AI089688 · NIAID · UNIVERSITY OF WASHINGTON · PI TULJAPURKAR, SHRIPAD D. · 2010 to 2023
$22.4M
Molecular Analysis of the PfEMP1 Binding ActivityR01AI047953 · NIAID · SEATTLE BIOMEDICAL RESEARCH INSTITUTE · PI SMITH, JOSEPH D · 2001 to 2016
$6.1M
Binding Mechanisms in P.falciparum Cerebral MalariaR56AI104238 · NIAID · SEATTLE BIOMEDICAL RESEARCH INSTITUTE · PI SMITH, JOSEPH D · 2013 to 2013
$538k
NIAID NIH HHS R01 AI047953NIAID NIH HHS R01 AI47953NIAID NIH HHS R56 AI104238NIAID NIH HHS U19 AI089688
6 · The paper itself

Abstract

Cytoadhesion of Plasmodium falciparum-infected erythrocytes to endothelial protein C receptor (EPCR) is associated with severe malaria. It has been postulated that parasite binding could exacerbate microvascular coagulation and endothelial dysfunction in cerebral malaria by impairing the protein C-EPCR interaction, but the extent of binding inhibition has not been fully determined. Here we expressed the cysteine-rich interdomain region (CIDRα1) domain from a variety of domain cassette (DC) 8 and DC13 P. falciparum erythrocyte membrane protein 1 proteins and show they interact in a distinct manner with EPCR resulting in weak, moderate and strong inhibition of the activated protein C (APC)-EPCR interaction. Overall, there was a positive correlation between CIDRα1-EPCR binding activity and APC blockade activity. In addition, our analysis from a combination of mutagenesis and blocking antibodies finds that an Arg81 (R81) in EPCR plays a pivotal role in CIDRα1 binding, but domains with weak and strong APC blockade activity were distinguished by their sensitivity to inhibition by anti-EPCR mAb 1535, implying subtle differences in their binding footprints. These data reveal a previously unknown functional heterogeneity in the interaction between P. falciparum and EPCR and have major implications for understanding the distinct clinical pathologies of cerebral malaria and developing new treatment strategies.

Indexed as

Cell AdhesionHost-Pathogen InteractionsAnimalsAntigens, CDCHO CellsCricetulusDNA Mutational AnalysisEndothelial CellsEndothelial Protein C ReceptorHumansMalariaPlasmodium falciparumProtein BindingProtein Structure, TertiaryProtozoan ProteinsReceptors, Cell SurfaceAntigens, CDEndothelial Protein C Receptorerythrocyte membrane protein 1, Plasmodium falciparumPROCR protein, humanProtozoan ProteinsReceptors, Cell Surface

Identifiers

PMID26118955
PMCPMC4661071
OpenAlexW1543948682

What OpenQuestion holds

Textmetadata
LicenceTDM
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.