Figure 2.

Cantharidin (CTD) inhibits proliferation of human osteosarcoma cells in a concentration-and time-dependent manner. (A) MNNG/HOS and (B) MG-63 cells were treated with different concentrations of CTD for different time periods. The cells were examined using the MTS assay and the absorbance was obtained at 490 nm using a microplate reader. The inhibition rate is expressed as the percentage of cell inhibition compared with the control group. The data are expressed as the mean ±SD from samples in triplicate.