title: Retinoic acid regulates 1,25-dihydroxyvitamin D3-binding sites in rat osteosarcoma cells.
mesh_terms: D000818:Animals; D002117:Calcitriol / Q000378:metabolism*; D002460:Cell Line; D012516:Osteosarcoma / Q000378:metabolism*; D051381:Rats; D018167:Receptors, Calcitriol; D011987:Receptors, Steroid / Q000187:drug effects / Q000378:metabolism*; D014212:Tretinoin / Q000494:pharmacology*
chemical_list: D018167:Receptors, Calcitriol; D011987:Receptors, Steroid; D014212:Tretinoin; D002117:Calcitriol