Fig. 2
Alteration of cell cycle in breast cancer cell lines after CoCl2 treatment. Clear alteration of the cell cycle as analyzed by flow cytometry was observed in MCF-7 (a) and MDA-MB-231 (c) cells treated with CoCl2. The bar graphs in (b) and (d) depict the relative changes to cell percentage in different phases of the cell cycle in PGCCs with budding compared to that of control cells. All data represent the mean ± SD of three independent cultures