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Malaria Journal
Article . 2014 . Peer-reviewed
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Malaria Journal
Article . 2015
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PubMed Central
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Horizon / Pleins textes
Other literature type . 2014
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Cytoadherence phenotype of Plasmodium falciparum- infected erythrocytes is associated with specific pfemp-1 expression in parasites from children with cerebral malaria

Authors: Maroufou J. Alao; Rachida Tahar; Rachida Tahar; Annick Amoussou; Gratien Sagbo; Philippe Deloron; Philippe Deloron; +6 Authors

Cytoadherence phenotype of Plasmodium falciparum- infected erythrocytes is associated with specific pfemp-1 expression in parasites from children with cerebral malaria

Abstract

Cytoadherence of Plasmodium falciparum-infected erythrocytes (IEs) in deep microvasculature endothelia plays a major role in the pathogenesis of cerebral malaria (CM). This biological process is thought to be mediated by P. falciparum erythrocyte membrane protein-1 (PfEMP-1) and human receptors such as CD36 and ICAM-1. The relationship between the expression of PfEMP-1 variants and cytoadherence phenotype in the pathology of malaria is not well established.Cytoadherence phenotypes of IEs to CD36, ICAM-1, CSPG and the transcription patterns of A, B, var2csa, var3, var gene groups and domain cassettes DC8 and DC13 were assessed in parasites from children with CM and uncomplicated malaria (UM) to determine if cytoadherence is related to a specific transcription profile of pfemp-1 variants.Parasites from CM patients bind significantly more to CD36 than those from UM patients, but no difference was observed in their binding ability to ICAM-1 and CSPG. CM isolates highly transcribed groups A, B, var2csa, var3, DC8 and DC13 compared to UM parasites. The high transcription levels of var genes belonging to group B positively correlated with increased binding level to CD36.CM isolates bind significantly more to CD36 than to ICAM-1, which was correlated with high transcription level of group B var genes, supporting their implication in malaria pathogenesis.

Keywords

CD36 Antigens, Erythrocytes, Genotype, TECHNIQUE RT PCR, Plasmodium falciparum, Malaria, Cerebral, Protozoan Proteins, 610, Gene Expression, Receptors, Cell Surface, PHENOTYPE, CYTOADHERENCE, Cell Adhesion, Humans, PARASITE, Child, Research, MICROORGANISME, PALUDISME, Intercellular Adhesion Molecule-1, ENFANT, Infectious Diseases, Parasitology, ANALYSE GENETIQUE

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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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citations
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!
12
Average
Average
Top 10%
Green
gold