Fig. 6

PD inhibits the proliferation of HCC cells. (A) Cell viability assay showed that PD could decrease the viability of HCC cells. The HCC cells were treated with PD at different concentrations for 24, 48 and 72 h. (B) Representative images showing colonies formed by HCC cells treated with various concentrations of PD for 2 weeks. (C) Representative images and statistical graphs of HCC-LM3 and MHCC-97 H cell cycle analysis. *P < 0.05, **P < 0.01 versus the untreated group