Figure 2
From: Survivin gene silencing sensitizes prostate cancer cells to selenium growth inhibition
MSA induces apoptosis in PC-3M cells. Untreated cells (A) or cells treated with 5 μM MSA for 48 hr (B) or 72 hr (C) were labeled with propidium iodide (PI) and the histograms of DNA content were obtained by flow cytometry analysis. The x-axis indicates PI fluorescence intensity, and y-axis indicates cell number. The numbers above the histogram are percentage of cells in the sub-G1 (apoptotic) phase.