Figure 1.

Effect of papuamine on colony formation by MCF-7 cells. To determine the effects on cell growth, colony formation assays were performed in the presence or absence of 1–10 μM papuamine alone. (A) Representative colony formation assay results of incubation with papuamine for 14 days. (B) Colony number was counted following incubation with papuamine for 14 days. Results are the mean ± standard deviation of three individual studies. ^*P<0.05 or ^**P<0.01 vs. control group under indicated culture conditions.