Figure 1.
Effect of standard cordycepin and isolated cordycepin on PC-9 human lung cancer cell viability. Cells were seeded at a density of 6 × 103 cells/well in a 96-well plate and then treated with different concentrations of standard cordycepin and isolated cordycepin (10, 30, 100, and 300 µM) for 48 h. The culture supernatant was removed, and cell counting kit-8 was added. All data are expressed as mean ± SD of three independent experiments. ** p < 0.01, *** p < 0.001 compared to the control.