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. 2020 May 12;10:700. doi: 10.3389/fonc.2020.00700

Figure 4.

Figure 4

Drug sensitivity of drug-selected ABCG2-overexpressing cell lines to various chemotherapeutic agents in the absence or presence of sitravatinib. The IC50 values of mitoxantrone (A,B), topotecan (C,D), SN-38 (E,F), and cisplatin (G,H) in NCI-H460 and its mitoxantrone-selected resistance cell line (NCI-H460/MX20), S1 and its mitoxantrone-selected resistance cell line (S1-M1-80). Data were collected from independent experiments repeated at least three times and are shown as mean ± SD. *p < 0.05 compared with control group.