“We found that the combination … (CI-994, MS-275, SAHA, … retinoids all-trans-retinoic acid (ATRA) or 13-cis-retinoic acid (13-CRA) or our atypical retinoic acid metabolism blocking agents (RAMBAs) …-1) or 2 (VN/66-1) produced synergistic anti-neoplastic activity on human LNCaP prostate cancer cells.”