title: Inhibition of breast and ovarian carcinoma cell growth by 1,25-dihydroxyvitamin D3 combined with retinoic acid or dexamethasone.
abstract: This study examined the growth inhibitory effects of combining 1,25-dihydroxyvitamin D3 (calcitriol) with retinoic acid or dexamethasone against cultured breast and ovarian carcinoma cells. Retinoic acid (12.5-50 nM) increased the effectiveness of calcitriol (12.5-50 nM) against MCF-7 and NIH:OVCAR3 cells, with synergistic interactions at two of the three ratios tested. Dexamethasone augmented calcitriol effects, with synergism at 0.05 and 0.1 nM dexamethasone in MCF-7 cells and 5 nM in Caov-4 ovarian cells. This study showed favorable interactions for calcitriol-retinoic acid and calcitriol-dexamethasone combinations in breast and ovarian cancer cell lines.
authors.affiliation: CS Mott Center, Department of OB/GYN, Wayne State University, Detroit, MI 48201, USA.
authors.forename: D E
authors.initials: DE
authors.lastname: Saunders
authors.forename: C
authors.initials: C
authors.lastname: Christensen
authors.forename: J R
authors.initials: JR
authors.lastname: Williams
authors.forename: N L
authors.initials: NL
authors.lastname: Wappler
authors.forename: W D
authors.initials: WD
authors.lastname: Lawrence
authors.forename: J M
authors.initials: JM
authors.lastname: Malone
authors.forename: V K
authors.initials: VK
authors.lastname: Malviya
authors.forename: G
authors.initials: G
authors.lastname: Deppe
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D018931:Antineoplastic Agents, Hormonal / Q000494:pharmacology*; D001943:Breast Neoplasms / Q000473:pathology*; D002117:Calcitriol / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects; D003907:Dexamethasone / Q000494:pharmacology*; D004357:Drug Synergism; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000473:pathology*; D014212:Tretinoin / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D018931:Antineoplastic Agents, Hormonal; D014212:Tretinoin; D003907:Dexamethasone; D002117:Calcitriol