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Hormone Research in Paediatrics • 2000 | View Paper
“In various experimental systems it was shown that the activities of vitamin D analogs can be enhanced by combined application with retinoids or other biological active compounds such as cytokines and growth factors.”
“ Retinoids and vitamin D analogs were found to have synergistic inhibitory effects on tumor cell proliferation and angiogenic capability, and both agents applied simultaneously are efficacious in small doses.”
The Journal of Biological Chemistry • 1999 | View Paper
“ Retinoids and vitamin D (VD) cooperate to induce the differentiation and inhibit the proliferation of human myelomonocytic leukemia cells.”
“These results confirm that various retinoids can cooperate with VD and demonstrate that, at a whole cell level, optimal effects require the activation of both RAR and RXR receptors.”
“Both VD3 and RA also reduced [3H]leucine incorporation (VD3:30%; RA:33%; VD3 + RA:45% inhibition) in endothelin-stimulated ventriculocytes and, once again, the combination of the two was more effective than either agent used in isolation.”
Molecular and cellular biology • 1993 | View Paper
“Maxacalcitol has been developed as a less-calcemic vitamin D analog, but even topical application of that drug can … cause hypercalcemia in patients with renal failure and creatinine levels above 1.1 mg ⁄ dL. The combination of oral retinoid with a topical … form of vitamin D can also … hypercalcemia.”
“Our data suggest that ATRA suppresses 24-hydroxylase expression through RARalpha-dependent signaling pathway and can enhance vitamin D action in suppression of cell growth.”