Parasite food vacuole

The parasite food vacuole is a specialized lysosome-like organelle found in protozoan parasites such as Plasmodium falciparum, the causative agent of malaria. During the parasite’s intraerythrocytic stage, the food vacuole forms via endocytosis from the parasite surface, initially as multiple small vesicles that subsequently fuse to create a single large vacuole[1][3][7]. Its primary function is to digest host erythrocyte hemoglobin, releasing amino acids for parasite growth and resulting in the liberation of heme, which is then crystallized as hemozoin—a distinctive biomarker of malaria infection[4][3][1]. The food vacuole hosts an acidic environment containing proteases and other enzymes and is a principal site of action for several antimalarial drugs, making it a validated therapeutic target[5][4]. Resistance to various antimalarials often involves changes to food vacuole transport proteins, notably the chloroquine resistance transporter (PfCRT)[1][5][6].

Other names

Food vacuoleDigestive vacuoleFVDV

Inhibition of hemoglobin digestion; Disruption of heme crystallization (hemozoin formation); Accumulation of toxic heme and free radicals; Interference with acidification and enzymes inside the vacuole