FIGURE 2.

Effects of AZ-628 in ABCG2-overexpressing drug-selected cancer cells. Sensitization of mitoxantrone resistance by AZ-628 in (A) H460/MX20 and (B) S1-M1-80 cells. Sensitization of SN-38 resistance by AZ-628 in (C) H460/MX20 and (D) S1-M1-80 cells. Sensitization of topotecan resistance by AZ-628 in (E) H460/MX20 and (F) S1-M1-80 cells. Effects of AZ-628 on (G) H460/MX20 and (H) S1-M1-80 cells when incubated with cisplatin. Parental cells (H460 or S1) were used as drug sensitive control cell lines. Columns and error bars represent mean ± SD. Statistical significance (*) was determined by p < 0.05.