7𝜶-Hydroxy-𝜷-Sitosterol from Chisocheton tomentosus Induces Apoptosis via Dysregulation of Cellular Bax/Bcl-2 Ratio and Cell Cycle Arrest by Downregulating ERK1/2 Activation

Figure 4

Cell cycle distribution of MCF-7 and HMEC cells using flow cytometry after staining with PI for 12 h and 24 h. I: Sub-G₁; II: G₀/G₁; III: S; IV: G₂/M. All experiments were a representative of 1.0 × 10⁴ cells and the percentage of cells in phases is indicated.