electron microscope examination of spleen tissue excised 20 min after intravenous injection of liposomes encapsulating percoll showed the presence of both liposome-encapsulated percoll and free percoll in phagolysosomes , suggesting that liposomes had been phagocytosed by macrophages in a way similar to circulating blood cells and that enzymatic digestion had already begun .
C0031309
phagolysosomes
C0007634
cells