retinoic-acid-treated cells , compared to controls , demonstrated increased functional maturation , with phagocytosis of opsonized zymosan ( 90 % versus 10 % ) and production of superoxide ( measured by nitroblue tetrazolium reduction ) in response to phorbol ester , opsonized zymosan , or the chemotaxin f-met-leu-phe .
C0007634
cells
C0031308
phagocytosis