FIGURE 5.
The effects of DHA, cisplatin, and their combination on cell viability and sphere and colony formation. (A) Growth curves of TE-1 cells after treatment with DHA, cisplatin (CDDP), and their combination. (B) Analysis of the combination of DHA and CDDP in TE-1 cells. The cells were treated by using various concentrations of DHA and CDDP, either alone or in a fixed ratio for 48 h. The combination index was analyzed using the Calcusyn program. (C) Representative images for sphere formation of ALDH + TE-1 cells after treatment with DHA, CDDP, and DHA + CDDP at designated concentrations for 24 h. (D) Bar graph of sphere formation efficiency of ALDH + TE-1 cells after treatment with DHA or/and CDDP. *P < 0.05, compared with DMSO treated group. (E) Representative images of colony formation of ALDH + TE-1 cells after treatment with DHA, CDDP and DHA + CDDP at designated concentrations for 24 h. (F) Bar graph of colony formation efficiency of ALDH + TE-1 cells after treatment with DHA or/and CDDP. *P < 0.05, compared with DMSO treated group.