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. 2019 Apr 11;10(4):322. doi: 10.1038/s41419-019-1555-8

Fig. 3. SC66 enhances the efficacy of anticancer drugs in ovarian cancer cells.

Fig. 3

Fig. 3

a Ovarian cancer cells were treated with different concentrations of cisplatin (CDDP, 0–32 μM) or paclitaxel (PAC, 0–64 μM), or combined with 2 μM SC66 for 48 h. Each combination was tested with n = 5 replicates. After 48 h of treatment, cell viability was assessed by MTT assays. All experiments were performed in triplicate. The IC50 values of each agent in single or combination treatments and CI values of the SC66 + CDDP or SC66 + PAC combinations. P-value between the IC50 values of single vs. combination treatment. b Ovarian cancer cells were treated for 24 h with 2 μM SC66 alone or with the addition of anticancer drugs (10 μM) indicated. The percentage of apoptotic cells was determined by Annexin V and PI staining. Mean ± SD for three independent experiments are shown. *P < 0.05 and **P < 0.005, SC66 + CDDP vs. CDDP or SC66 + PAC vs. PAC. c Colony formation assay. Ovarian cancer cells were treated with 2 μM SC66 with or without the addition of the anticancer drugs (10 μM) indicated for 14 d (A2780 and A2780CP70) or 21 d (ES-2 and ES-2CP). After treatment, cells were stained with crystal violet. Mean ± SD for three independent experiments are shown. *P < 0.05 and **P < 0.005, SC66 + CDDP vs. CDDP or SC66 + PAC vs. PAC