Journal
JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY
Volume 121, Issue 1-2, Pages 142-145Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsbmb.2010.03.020
Keywords
Chromatin; Cytokine; VDR; Vitamin D response elements; Transcription
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A number of studies have described the effects of 1 alpha,25(OH)(2)D-3 in immune system. Most of the known effects of 1 alpha,25(OH)(2)D-3 are indirect since only two functional VDREs that regulate transcription of cytokine gene has been reported until today. In this study we have examined a possibility of direct transcriptional regulation of IL-2, IL-10 and IL-12B genes in activated Jurkat or THP-1 cells via liganded VDR by using gene expression analysis and chromatin immunoprecipitation assays. According to our data the IL-2, IL-10 and IL-12B genes respond to 1,25(OH)(2)D-3 treatment by 3-6 h. In addition, all of these genes contain several genomic regions that recruit VDR in a ligand dependent fashion. These data suggest that the above cytokines are under direct transcriptional regulation by 1 alpha,25(OH)(2)D-3. (C) 2010 Elsevier Ltd. All rights reserved.
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