EAC-B induced G0/G1 arrest in MGC-803 cells. (A) Flow cytometry assay for the cell cycles of EAC-B treated MGC-803. Cells were treated with various doses of EAC-B for 4 h and then trypsinized, fixed, and stained with PI to measure cell cycle by flow cytometry. (B) bar graph summarized percentage of cells in every cycle. n = 3, mean ± SD. a: pp < 0.05, b: p < 0.01, vs. 0 μg/mL group.