Fig. 2.

Effect of PFE treatment of PC3 cells on protein expression of WAF1/p21 and KIP1/p27 (A), cyclins D1, D2, and E (B), and cdk2, cdk4, and cdk6 (C). The cells were treated with vehicle only or specified concentrations of PFE for 48 h and harvested, and cell lysates were prepared. The data are representative of three independent experiments with similar results. The values above the blots represent the change in the protein expression of the bands normalized to β-actin where vehicle-treated cells are represented as 1.0.