Additional file 2: Fig S2. Cell cytotoxicity after A922500 treatment. Cells were treated with a range of concentrations of A922500 for 48 h. Cell viability using crystal violet staining of uninfected (A) SH-SY5Y cells and (B) NSCs treated with A922500. Cytotoxicity was evaluated by LDH activity in (C) SH-SY5Y cells and (D) NSCs. (E) CC50, EC50 and SI for SH-SY5Y cells and NSCs treated with A922500. Data information: In (A and C), the data are presented as the means ± SEMs of five independent experiments, and in (B and D), the data are presented as the means ± SEMs of four independent experiments. *P < 0.05 versus untreated cells.