Figure 1 shows the cytotoxic effect of CAPE, curcumin, and quercetin at concentrations of 10 to 100 μM at 24 h and 48 h incubation on the LNCaP prostate cancer cell line using XTT (mitochondrial activity), NR (mitochondrial lysosomal), and SRB (total protein synthesis). This evidence concerns the gene CCT4 and Familial prostate cancer.