Fig. 9From: A machine learning framework develops a DNA replication stress model for predicting clinical outcomes and therapeutic vulnerability in primary prostate cancerKnockdown of FEN1 and RFC5 inhibits cell growth and promotes apoptosis. Levels of FEN1 and RFC expression in C4-2B and PC-3 are decreased by siRNA knockdown as measured in the A real-time qPCR and B Western blot analysis. Comparison of cell growth among the control, FEN1, and RFC5 knockdown groups in C4-2B and PC-3 via C CCK-8 and D colony formation assays. E Measurement of cell apoptosis in control, FEN1, and RFC5 knockdown groups by flow cytometry. Cells are stained with Annexin V-fluorescein 5-isothiocyanate/PI assay. The asterisks represented the statistical P-value (*P < 0.05; **P < 0.01; ***P < 0.001, ****P < 0.0001)Back to article page