Parasite membrane integrity

“Parasite membrane integrity” is not a discrete molecule or receptor but a broad, multi-factorial cellular property describing the structural and functional soundness of Plasmodium parasite membranes (e.g., parasite plasma membrane and inner membrane complex) required for invasion of red blood cells and intracellular development. Studies show that specific parasite proteins and machineries are essential to maintain membrane integrity during invasion and growth. For example, the micronemal sheddase SUB2 is required for proper shedding of surface proteins and sealing of the host red blood cell membrane upon merozoite entry; its loss causes abortive invasion, red blood cell lysis, and developmental arrest, underscoring the link between proteolytic processing and membrane integrity during entry[1]. The inner membrane complex (a double-membrane organelle beneath the plasma membrane) provides structural stability, scaffolds daughter cell formation, and supports motility/invasion; its dynamic assembly and rapid disassembly are central to parasite morphology and function[2]. In infected red blood cells, phospholipid asymmetry can be perturbed, with increased exposure of phosphatidylserine on the outer leaflet reported at the population level, reflecting altered membrane organization during infection[3]. While these findings highlight pathways that influence “membrane integrity,” the term itself does not denote a single drug target and therefore should not be considered a canonical therapeutic target.

Other names

Parasite plasma membrane integrityPlasmodium membrane integrityInner membrane complex integrityErythrocyte invasion membrane integrity