The calcitriol receptor, more commonly known as the vitamin D receptor (VDR) and also known as NR1I1 (nuclear receptor subfamily 1, group I, member 1), is a member of the nuclear receptor family of transcription factors.[1]Calcitriol, the active form of vitamin D, binds to the VDR, which then forms a heterodimer with the retinoid-X receptor. The VDR heterodimer then enters the nucleus and binds to Vitamin D responsive elements (VDRE) in genomic DNA resulting in expression or transrepression of specific gene products. The VDR not only regulates transcriptional responses but also involved in microRNA-directed post transcriptional mechanisms.[2] In humans, the vitamin D receptor is encoded by the VDRgene.[3]
Glucocorticoids are known to decrease expression of VDR, which is expressed in most tissues of the body and regulate intestinal transport of calcium, iron and other minerals.[4]
This gene encodes the nuclear hormone receptor for vitamin D3. This receptor also functions as a receptor for the secondary bile acidlithocholic acid. The receptor belongs to the family of trans-acting transcriptional regulatory factors and shows similarity of sequence to the steroid and thyroid hormone receptors.[5]
Downstream targets of this nuclear hormone receptor are involved principally in mineral metabolism though the receptor regulates a variety of other metabolic pathways, such as those involved in the immune response and cancer.[6]
Mutations in this gene are associated with type II vitamin D-resistant rickets. A single nucleotide polymorphism in the initiation codon results in an alternate translation start site three codons downstream. Alternative splicing results in multiple transcript variants encoding the same protein.[7]
The vitamin D receptor plays an important role in regulating the hair cycle. Loss of VDR is associated with hair loss in experimental animals.[8]
Experimental studies have shown that the unliganded VDR interacts with regulatory regions in cWnt (wnt signaling pathway) and sonic hedgehog target genes and is required for the induction of these pathways during the postnatal hair cycle.[9]
These studies have revealed novel actions of the unliganded VDR in regulating the post-morphogenic hair cycle.
Interactions
Calcitriol receptor has been shown to interact with
↑Moore DD, Kato S, Xie W, Mangelsdorf DJ, Schmidt DR, Xiao R, Kliewer SA (December 2006). "International Union of Pharmacology. LXII. The NR1H and NR1I receptors: constitutive androstane receptor, pregnene X receptor, farnesoid X receptor alpha, farnesoid X receptor beta, liver X receptor alpha, liver X receptor beta, and vitamin D receptor". Pharmacol. Rev. 58 (4): 742–59. doi:10.1124/pr.58.4.6. PMID17132852.CS1 maint: Multiple names: authors list (link)
↑Germain P, Staels B, Dacquet C, Spedding M, Laudet V (December 2006). "Overview of nomenclature of nuclear receptors". Pharmacol. Rev. 58 (4): 685–704. doi:10.1124/pr.58.4.2. PMID17132848.CS1 maint: Multiple names: authors list (link)
↑Adorini L, Daniel KC, Penna G (2006). "Vitamin D receptor agonists, cancer and the immune system: an intricate relationship". Curr Top Med Chem. 6 (12): 1297–301. doi:10.2174/156802606777864890. PMID16848743.CS1 maint: Multiple names: authors list (link)
↑Luderer HF, Demay MB (July 2010). "The vitamin D receptor, the skin and stem cells". J. Steroid Biochem. Mol. Biol. 121 (1–2): 314–6. doi:10.1016/j.jsbmb.2010.01.015. PMID20138991.
↑Guzey M, Takayama S, Reed JC (December 2000). "BAG1L enhances trans-activation function of the vitamin D receptor". J. Biol. Chem. 275 (52): 40749–56. doi:10.1074/jbc.M004977200. PMID10967105.CS1 maint: Multiple names: authors list (link)
↑ 11.011.111.211.311.4Kitagawa H, Fujiki R, Yoshimura K, Mezaki Y, Uematsu Y, Matsui D, Ogawa S, Unno K, Okubo M, Tokita A, Nakagawa T, Ito T, Ishimi Y, Nagasawa H, Matsumoto T, Yanagisawa J, Kato S (June 2003). "The chromatin-remodeling complex WINAC targets a nuclear receptor to promoters and is impaired in Williams syndrome". Cell. 113 (7): 905–17. doi:10.1016/S0092-8674(03)00436-7. PMID12837248.CS1 maint: Multiple names: authors list (link)
↑ 13.013.113.2Ito M, Yuan CX, Malik S, Gu W, Fondell JD, Yamamura S, Fu ZY, Zhang X, Qin J, Roeder RG (March 1999). "Identity between TRAP and SMCC complexes indicates novel pathways for the function of nuclear receptors and diverse mammalian activators". Mol. Cell. 3 (3): 361–70. doi:10.1016/S1097-2765(00)80463-3. PMID10198638.CS1 maint: Multiple names: authors list (link)
↑ 14.014.1Tagami T, Lutz WH, Kumar R, Jameson JL (December 1998). "The interaction of the vitamin D receptor with nuclear receptor corepressors and coactivators". Biochem. Biophys. Res. Commun. 253 (2): 358–63. doi:10.1006/bbrc.1998.9799. PMID9878542.CS1 maint: Multiple names: authors list (link)
↑ 15.015.115.215.3Puccetti E, Obradovic D, Beissert T, Bianchini A, Washburn B, Chiaradonna F, Boehrer S, Hoelzer D, Ottmann OG, Pelicci PG, Nervi C, Ruthardt M (December 2002). "AML-associated translocation products block vitamin D(3)-induced differentiation by sequestering the vitamin D(3) receptor". Cancer Res. 62 (23): 7050–8. PMID12460926.CS1 maint: Multiple names: authors list (link)
↑Herdick M, Steinmeyer A, Carlberg C (June 2000). "Antagonistic action of a 25-carboxylic ester analogue of 1alpha, 25-dihydroxyvitamin D3 is mediated by a lack of ligand-induced vitamin D receptor interaction with coactivators". J. Biol. Chem. 275 (22): 16506–12. doi:10.1074/jbc.M910000199. PMID10748178.CS1 maint: Multiple names: authors list (link)
↑ 17.017.117.2Zhang C, Baudino TA, Dowd DR, Tokumaru H, Wang W, MacDonald PN (November 2001). "Ternary complexes and cooperative interplay between NCoA-62/Ski-interacting protein and steroid receptor coactivators in vitamin D receptor-mediated transcription". J. Biol. Chem. 276 (44): 40614–20. doi:10.1074/jbc.M106263200. PMID11514567.CS1 maint: Multiple names: authors list (link)
↑Ward JO, McConnell MJ, Carlile GW, Pandolfi PP, Licht JD, Freedman LP (December 2001). "The acute promyelocytic leukemia-associated protein, promyelocytic leukemia zinc finger, regulates 1,25-dihydroxyvitamin D(3)-induced monocytic differentiation of U937 cells through a physical interaction with vitamin D(3) receptor". Blood. 98 (12): 3290–300. doi:10.1182/blood.V98.12.3290. PMID11719366.CS1 maint: Multiple names: authors list (link)
Further reading
Hosoi T (2002). "[Polymorphisms of vitamin D receptor gene]". Nippon Rinsho. 60 Suppl 3: 106–10. PMID11979895.
Uitterlinden AG, Fang Y, Van Meurs JB, Pols HA, Van Leeuwen JP (2004). "Genetics and biology of vitamin D receptor polymorphisms". Gene. 338 (2): 143–56. doi:10.1016/j.gene.2004.05.014. PMID15315818.CS1 maint: Multiple names: authors list (link)
Norman AW (2007). "Minireview: vitamin D receptor: new assignments for an already busy receptor". Endocrinology. 147 (12): 5542–8. doi:10.1210/en.2006-0946. PMID16946007.
Bollag WB (2007). "Differentiation of human keratinocytes requires the vitamin d receptor and its coactivators". J. Invest. Dermatol. 127 (4): 748–50. doi:10.1038/sj.jid.5700692. PMID17363957.
Goto H, Chen KS, Prahl JM, DeLuca HF (1992). "A single receptor identical with that from intestine/T47D cells mediates the action of 1,25-dihydroxyvitamin D-3 in HL-60 cells". Biochim. Biophys. Acta. 1132 (1): 103–8. doi:10.1016/0167-4781(92)90063-6. PMID1324736.CS1 maint: Multiple names: authors list (link)
Szpirer J, Szpirer C, Riviere M, Levan G, Marynen P, Cassiman JJ, Wiese R, DeLuca HF (1992). "The Sp1 transcription factor gene (SP1) and the 1,25-dihydroxyvitamin D3 receptor gene (VDR) are colocalized on human chromosome arm 12q and rat chromosome 7". Genomics. 11 (1): 168–73. doi:10.1016/0888-7543(91)90114-T. PMID1662663.CS1 maint: Multiple names: authors list (link)
Yu XP, Mocharla H, Hustmyer FG, Manolagas SC (1991). "Vitamin D receptor expression in human lymphocytes. Signal requirements and characterization by western blots and DNA sequencing". J. Biol. Chem. 266 (12): 7588–95. PMID1850412.CS1 maint: Multiple names: authors list (link)
Sone T, Marx SJ, Liberman UA, Pike JW (1991). "A unique point mutation in the human vitamin D receptor chromosomal gene confers hereditary resistance to 1,25-dihydroxyvitamin D3". Mol. Endocrinol. 4 (4): 623–31. doi:10.1210/mend-4-4-623. PMID2177843.CS1 maint: Multiple names: authors list (link)
Hughes MR, Malloy PJ, Kieback DG, Kesterson RA, Pike JW, Feldman D, O'Malley BW (1989). "Point mutations in the human vitamin D receptor gene associated with hypocalcemic rickets". Science. 242 (4886): 1702–5. doi:10.1126/science.2849209. PMID2849209.CS1 maint: Multiple names: authors list (link)
Rut AR, Hewison M, Kristjansson K, Luisi B, Hughes MR, O'Riordan JL (1995). "Two mutations causing vitamin D resistant rickets: modelling on the basis of steroid hormone receptor DNA-binding domain crystal structures". Clin. Endocrinol. 41 (5): 581–90. doi:10.1111/j.1365-2265.1994.tb01822.x. PMID7828346.CS1 maint: Multiple names: authors list (link)
Malloy PJ, Weisman Y, Feldman D (1994). "Hereditary 1 alpha,25-dihydroxyvitamin D-resistant rickets resulting from a mutation in the vitamin D receptor deoxyribonucleic acid-binding domain". J. Clin. Endocrinol. Metab. 78 (2): 313–6. doi:10.1210/jc.78.2.313. PMID8106618.CS1 maint: Multiple names: authors list (link)
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Yagi H, Ozono K, Miyake H, Nagashima K, Kuroume T, Pike JW (1993). "A new point mutation in the deoxyribonucleic acid-binding domain of the vitamin D receptor in a kindred with hereditary 1,25-dihydroxyvitamin D-resistant rickets". J. Clin. Endocrinol. Metab. 76 (2): 509–12. doi:10.1210/jc.76.2.509. PMID8381803.CS1 maint: Multiple names: authors list (link)
Lin NU, Malloy PJ, Sakati N, al-Ashwal A, Feldman D (1996). "A novel mutation in the deoxyribonucleic acid-binding domain of the vitamin D receptor causes hereditary 1,25-dihydroxyvitamin D-resistant rickets". J. Clin. Endocrinol. Metab. 81 (7): 2564–9. doi:10.1210/jc.81.7.2564. PMID8675579.CS1 maint: Multiple names: authors list (link)
