fagosomien
Fagosomien (phagosomes) are membrane-bound vesicles formed inside phagocytic cells during phagocytosis. They enclose extracellular particles such as bacteria, apoptotic cells, or debris, by plasma membrane invagination and pseudopod extension.
After formation, phagosomes undergo maturation, involving sequential fusion with early and late endosomes and ultimately lysosomes
In professional phagocytes, processed material can be loaded onto MHC class II molecules in phagolysosomes, enabling
Pathogens have evolved strategies to block phagosome maturation, such as Mycobacterium tuberculosis and Legionella; others escape