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Cell Host & Microbe
Article
License: Elsevier Non-Commercial
Data sources: UnpayWall
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Cell Host & Microbe
Article . 2017 . Peer-reviewed
License: Elsevier Non-Commercial
Data sources: Crossref
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Linking EPCR-Binding PfEMP1 to Brain Swelling in Pediatric Cerebral Malaria

Authors: Kessler, A; Dankwa, S; Bernabeu, M; Harawa, V; Danziger, SA; Duffy, F; Kampondeni, SD; +15 Authors

Linking EPCR-Binding PfEMP1 to Brain Swelling in Pediatric Cerebral Malaria

Abstract

Brain swelling is a major predictor of mortality in pediatric cerebral malaria (CM). However, the mechanisms leading to swelling remain poorly defined. Here, we combined neuroimaging, parasite transcript profiling, and laboratory blood profiles to develop machine-learning models of malarial retinopathy and brain swelling. We found that parasite var transcripts encoding endothelial protein C receptor (EPCR)-binding domains, in combination with high parasite biomass and low platelet levels, are strong indicators of CM cases with malarial retinopathy. Swelling cases presented low platelet levels and increased transcript abundance of parasite PfEMP1 DC8 and group A EPCR-binding domains. Remarkably, the dominant transcript in 50% of swelling cases encoded PfEMP1 group A CIDRα1.7 domains. Furthermore, a recombinant CIDRα1.7 domain from a pediatric CM brain autopsy inhibited the barrier-protective properties of EPCR in human brain endothelial cells in vitro. Together, these findings suggest a detrimental role for EPCR-binding CIDRα1 domains in brain swelling.

Country
Australia
Keywords

Male, Malawi, Plasmodium falciparum, Malaria, Cerebral, Protozoan Proteins, 610, Brain, Endothelial Protein C Receptor, Infant, Brain Edema, Receptors, Cell Surface, Neoplasm Proteins, Protein Domains, Child, Preschool, Cell Adhesion, Humans, Female, Malaria, Falciparum, Child, Protein Binding

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
103
Top 1%
Top 10%
Top 1%
hybrid