Fig. 8

DY, DY-B, DYB4 induced apoptosis in HT29 cells. a Cells were stained by PI & RNase and DNA contents were then measured by flow cytometry system (FCMS). b Apoptotic CRC cells stained with Annexin V-FITC/PI were detected by FCMS, and apoptotic rate was showed below. All data are expressed as mean ± SD (n = 3), *P  < 0.05, **P  < 0.01, ***P  <  0.001, vs control group