Figure 3: Synergistic effects of TP-GE11 and Sal on OS cell proliferation. Synergistic inhibition of cell proliferation after 48 h (a) and 72 h (b). The effect of different concentrations of TPG-GE11 (c) or Sal (d) on the proliferation of U2OS cells. Results are representative of three independent experiments, and the error bars represent the standard deviation **P < 0.01, *P < 0.05