Figure 7
BSO triggers phosphorylation of MCL1and BIM EL via activation of JNK. A, The phosphorylation of JNK, ERK1/2 and p38 was determined by immunoblotting. HL60 cells were treated with ATO/BSO or ATO in the presence or absence of NAC or DTT for 12 h. B, The phosphorylation of BIMEL and MCL1, and the cleavage of caspase 3 and PARP, were determined by immunoblotting. HL60 cells were treated with ATO/BSO or ATO in the presence of SP600125 (10 μM) as a JNK inhibitor, U0126 (2 μM) as an ERK1/2 inhibitor, or SB203580 (10 μM) as a p38 inhibitor, PD035901 (100 nM)as a MEK1/2 inhibitor for 12 h. A typical result of 3 independent experiments is shown.