Figure 2.

Effect of PA on cell cycle regulation in HeLa cells. (A) Cells were treated with various concentrations of PA (0 to 30 μM) and cell cycle progression was measured by flow cytometry; (B) expression of proteins that regulate the cell cycle were measured after treatment of cells with various concentrations of PA (0 to 30 μM) for 24 h. Values are means and standard errors of 3 replicates, ** indicates p < 0.01 versus control.