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. 2021 May 13;11:10200. doi: 10.1038/s41598-021-89655-w

Figure 4.

Figure 4

Antiproliferative effects of the two-drug combination are better than those of the single-drug combination in the RCC-24, 786-O and Caki-2 cell lines. (A) Combination effect of Ketoconazole and sunitinib on cell proliferation determined by using the MTT assay. Cells were treated with the indicated concentrations of Ketoconazole and sunitinib, and proliferation was determined 48 h later. (B) Clonogenic assay was performed in the 293-T, RCC-24, 786-O and Caki-2 cell lines. Colonies were counted 14 days later. Data are presented as the means ± SD from three independent experiments and shown in bar graphs (*p < 0.05 vs. K − K + S or S − K + S). (C) Note a significant decrease in cyclin D1 levels after sunitinib treatment and its enhancement in combination treatment with ketoconazole. The densitometric plots shows fold decrease in the expression of signaling molecule. GAPDH immunoblot used as loading control. Full blots are presented in Supplementary Fig. S6.