Vitamin D(3) receptor ablation sensitizes skin to chemically induced tumorigenesis.

Abstract excerpt

1,25-Dihydroxyvitamin D(3) (1,25D(3)) is the biologically active form of vitamin D(3) that interacts with the nuclear vitamin D(3) receptor (VDR) to modulate gene expression in a tissue-specific fashion. 1,25D(3) is a potent regulator of cell proliferation, differentiation and apoptosis in a variety of cell types, including keratinocytes. In these studies, we assessed the sensitivity of mice homozygous for a null...

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