Figure 2.
Apoptotic index and growth inhibition analyses of HL-60 and HL-60/MX2 cells. HL-60 and HL-60/MX2 cells were treated with 100 nM doxorubicin (DOX), doxazolidine (DOXAZ) or vehicle for 24 h and analyzed for apoptosis or for 48 h and analyzed for growth inhibition. HL-60 is a human leukemic cell line and HL-60/MX2 is a topoisomerase-II deficient subline of HL-60.