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Plasmodium falciparum Erythrocyte Membrane Protein 1 (PfEMP1)

Target: PfEMP1
Molecular classification: Membrane protein, Adhesin, Antigen, Virulence factor

Overview

PfEMP1 is a highly variable surface antigen expressed on infected erythrocytes. It mediates cytoadherence to endothelial cells, leading to sequestration of infected cells in various organs. This process contributes to severe malaria pathologies. PfEMP1 is a major target of acquired immunity and a key virulence factor. Its sequence diversity allows for antigenic variation and immune evasion. Targeting PfEMP1 is a promising strategy for preventing severe malaria.

Other names: var gene product

Mechanism of action

Inhibition of PfEMP1 binding to endothelial receptors (e.g., ICAM-1, EPCR) to prevent cytoadherence and sequestration of infected erythrocytes.

Biological functions

CytoadherenceAntigenic variationImmune evasionHost cell remodeling

Disease associations

Malaria pathogenesisCerebral malariaSevere malaria

Safety considerations

Potential for off-target effects due to sequence variability within the PfEMP1 family.Development of resistance through altered PfEMP1 expression or sequence changes.

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