using three monoclonal antibodies against antigens known to be associated with differentiation and three monoclonal antibodies that distinguish our multiple drug-resistant human leukemic cem/vlb100 cells from their drug-sensitive counterparts , we found that the resistant cells were neither altered in their apparent state of differentiation nor were they altered in their ability to respond to a differentiation stimulus with the phorbol ester , 12-o-tetradecanoylphorbol-13-acetate .
C0031586
phorbol ester
C0039654
12-o-tetradecanoylphorbol-13-acetate