Figure 6. Analysis of cell apoptosis by flow cytometry.
HuH-7/ADM cells were treated with different drug formulations (2 μM DOX and 4 μM ATO) for 24 h and stained with 7-aminoactinomycin D (7-AAD, Invitrogen) and Annexin-V (Roche). Combo NP significantly increased the apoptosis of drug resistant cancer cells.