“In additional studies, retinoic acid induced a dose-dependent … at concentrations of 0.1 to 1 microM. Dihydrotestosterone (10 nM.) also enhanced the secretion of PSA by … in a dose-dependent fashion by the addition of retinoic acid at 0.1-10 microM. Competitive … not bind to androgen receptors.”
“In the presence of 0.1 nM. dihydrotestosterone DHT ), LNCaP cell proliferation was inhibited by 10 microM. retinoic acid but not by lower concentrations of retinoic acid.”