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Title

Vitamin D has wide regulatory effects on histone demethylase genes

AuthorsPereira, Fábio; Barbáchano, Antonio ; Singh, Prashant K.; Campbell, Moray J.; Muñoz Terol, Alberto ; Larriba, María Jesús
KeywordsVitamin D
Histone demethylases
Epigenetic regulation
Jumonji
Epithelialmesenchymal transition
MicroRNAs
Issue Date15-Mar-2012
PublisherLandes Bioscience
Taylor & Francis
CitationCell Cycle 11(6): 1081-1089 (2012)
AbstractVitamin D from the diet or synthesized in the skin upon UV-B irradiation is converted in the organism into the active metabolite 1α,25- dihydroxyvitamin D3 [1,25(OH)2D3, calcitriol], a pleiotropic hormone with wide regulatory actions. The classical model of 1,25(OH)2D3 action implies the activation of the vitamin D receptor, which binds specific DNA sequences in its target genes and modulates their transcription rate. We have recently shown that 1,25(OH)2D3 induces the expression of the JMJD3 gene coding for a histone demethylase that is involved in epigenetic regulation. JMJD3 mediates the effects of 1,25(OH)2D3 on a subset of target genes and affects the expression of ZEB1, ZEB2 and SNAI1, inducers of epithelial-mesenchymal transition. Novel data indicate that 1,25(OH)2D3 has an unanticipated wide regulatory action on the expression of genes coding for histone demethylases of the Jumonji C (JmjC) domain and lysine-specific demethylase (LSD) families. Moreover, JMJD3 knockdown decreases the expression of miR‑200b and miR‑200c, two microRNAs targeting ZEB1 RNA. This may explain the upregulation of this transcription factor found in JMJD3-depleted cells. Thus, 1,25(OH)2D3 exerts an ample regulatory effect on the expression of histone-modifying enzymes involved in epigenetic regulation that may mediate its actions on gene transcription and cell phenotype.
Publisher version (URL)http://dx.doi.org/10.4161/cc.11.6.19508
URIhttp://hdl.handle.net/10261/75734
DOI10.4161/cc.11.6.19508
ISSN1538-4101
E-ISSN1551-4005
Appears in Collections:(IIBM) Artículos
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