The pan-RAR antagonists AGN194310, AGN19309, and AGN193776 were highly effective in inhibiting the growth of the three PCa cell lines (IC50 values from 3.5 to 6.8 × 10−7 M), AGN194310 was equally effective against patients’ PCa cells (IC50 value 4.7 × 10−7 M), and normal prostate epithelium was less sensitive to the AGN194310 antagonist than the PCa lines (IC50 value 1.0 × 10−6 M) [51,52,53]. This evidence concerns the gene RARA and posterior cortical atrophy.