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Disease Severity

Plasmodium yoelii Erythrocyte-Binding-like Protein Modulates Host Cell Membrane Structure, Immunity, and Disease Severity

January 14, 2020 - 12:00 -- Open Access
Author(s): 
Peng YC, Qi Y, Su XZ, et al.
Reference: 
mBio. 2020 Jan 7;11(1). pii: e02995-19

Erythrocyte-binding-like (EBL) proteins are known to play an important role in malaria parasite invasion of red blood cells (RBCs); however, any roles of EBL proteins in regulating host immune responses remain unknown. Here, we show that Plasmodium yoelii EBL (PyEBL) can shape disease severity by modulating the surface structure of infected RBCs (iRBCs) and host immune responses. We identified an amino acid substitution (a change of C to Y at position 741 [C741Y]) in the protein trafficking domain of PyEBL between isogenic P. yoellii nigeriensis strain N67 and N67C parasites that produce different disease phenotypes in C57BL/6 mice.

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