Cancer-specific effectiveness and bioactivity of plant-made SAC-Par-4-GFP was confirmed by mammalian cell proliferation assays in PC3, MAT-LyLu, LNCaP prostate cancer cells lines, and HEK293 non-cancerous cells along with apoptosis induction in PC3 and NF-κB suppression activities in PC3, MAT-LyLu, and HEK293 cells. The gene discussed is NFKB1; the disease is Familial prostate cancer.