Figure 2

Inhibition of cell viability by QNT11 and levofloxacin treatment in human cancer cells and BMSCs. Hep3B cells (A), SMMC-7721 cells (B), MCF-7 cells (C), HCT-8 cells (D) and BMSCs (E) were treated with various concentrations of QNT11 for 12–72 h. Hep3B cells were treated with various concentrations of Levofloxacin (F) for 12–72 h. Control cells were treated with the same volume of DMSO as a vehicle control (the final concentration of DMSO was below 0.1%). After treatment, cell viability was measured by MTT assay as described in Methods, and then calculated as a percentage of viability of the control cells. Data represent means ± SD of three independent measurements.