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PLoS One. 2016 Jun 30;11(6):e0158238. doi: 10.1371/journal.pone.0158238. eCollection 2016.

A Stem Cell Strategy Identifies Glycophorin C as a Major Erythrocyte Receptor for the Rodent Malaria Parasite Plasmodium berghei.

Author information

1
Malaria Programme, Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
2
Mouse Developmental Genetics and ES Cells Mutagenesis, Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
3
Cellular Genetics, Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
4
Microbial Pathogenesis, Wellcome Trust Sanger Institute, Cambridge, United Kingdom.

Abstract

The clinical complications of malaria are caused by the parasite expansion in the blood. Invasion of erythrocytes is a complex process that depends on multiple receptor-ligand interactions. Identification of host receptors is paramount for fighting the disease as it could reveal new intervention targets, but the enucleated nature of erythrocytes makes genetic approaches impossible and many receptors remain unknown. Host-parasite interactions evolve rapidly and are therefore likely to be species-specific. As a results, understanding of invasion receptors outside the major human pathogen Plasmodium falciparum is very limited. Here we use mouse embryonic stem cells (mESCs) that can be genetically engineered and differentiated into erythrocytes to identify receptors for the rodent malaria parasite Plasmodium berghei. Two proteins previously implicated in human malaria infection: glycophorin C (GYPC) and Band-3 (Slc4a1) were deleted in mESCs to generate stable cell lines, which were differentiated towards erythropoiesis. In vitro infection assays revealed that while deletion of Band-3 has no effect, absence of GYPC results in a dramatic decrease in invasion, demonstrating the crucial role of this protein for P. berghei infection. This stem cell approach offers the possibility of targeting genes that may be essential and therefore difficult to disrupt in whole organisms and has the potential to be applied to a variety of parasites in diverse host cell types.

PMID:
27362409
PMCID:
PMC4928779
DOI:
10.1371/journal.pone.0158238
[Indexed for MEDLINE]
Free PMC Article

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