Figure 7.

Raddeanin A (RA) enhances docetaxel efficacy in prostate cancer cells. A, Calculation of combination‐index values shows RA and docetaxel (DTX) synergistically inhibit the growth of 22Rv1 cells in the presence or absence of R1881. B, Graph shows the combination with the best synergistic effect. 22Rv1 cells cultured in androgen‐deprived condition were treated with 6 μmol/L RA with or without 5 nmol/L DTX for 48 h, and cell growth was assessed by the SRB assay. *P < 0.05 from the control group. ^# P < 0.05 from the single‐agent treatment groups