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1?,20S-Dihydroxyvitamin D3 Interacts with Vitamin D Receptor: Crystal Structure and Route of Chemical Synthesis.

ABSTRACT: 1?,20S-Dihydroxyvitamin D3 [1,20S(OH)2D3], a natural and bioactive vitamin D3 metabolite, was chemically synthesized for the first time. X-ray crystallography analysis of intermediate 15 confirmed its 1?-OH configuration. 1,20S(OH)2D3 interacts with the vitamin D receptor (VDR), with similar potency to its native ligand, 1?,25-dihydroxyvitamin D3 [1,25(OH)2D3] as illustrated by its ability to stimulate translocation of the VDR to the nucleus, stimulate VDRE-reporter activity, regulate VDR downstream genes (VDR, CYP24A1, TRPV6 and CYP27B1), and inhibit the production of inflammatory markers (IFN? and IL1?). However, their co-crystal structures revealed differential molecular interactions of the 20S-OH moiety and the 25-OH moiety to the VDR, which may explain some differences in their biological activities. Furthermore, this study provides a synthetic route for the synthesis of 1,20S(OH)2D3 using the intermediate 1?,3?-diacetoxypregn-5-en-20-one (3), and provides a molecular and biological basis for the development of 1,20S(OH)2D3 and its analogs as potential therapeutic agents.

SUBMITTER: Lin Z 

PROVIDER: S-EPMC5579064 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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1α,20S-Dihydroxyvitamin D<sub>3</sub> Interacts with Vitamin D Receptor: Crystal Structure and Route of Chemical Synthesis.

Lin Zongtao Z   Chen Hao H   Belorusova Anna Y AY   Bollinger John C JC   Tang Edith K Y EKY   Janjetovic Zorica Z   Kim Tae-Kang TK   Wu Zhongzhi Z   Miller Duane D DD   Slominski Andrzej T AT   Postlethwaite Arnold E AE   Tuckey Robert C RC   Rochel Natacha N   Li Wei W  

Scientific reports 20170831 1

1α,20S-Dihydroxyvitamin D3 [1,20S(OH)<sub>2</sub>D<sub>3</sub>], a natural and bioactive vitamin D3 metabolite, was chemically synthesized for the first time. X-ray crystallography analysis of intermediate 15 confirmed its 1α-OH configuration. 1,20S(OH)<sub>2</sub>D<sub>3</sub> interacts with the vitamin D receptor (VDR), with similar potency to its native ligand, 1α,25-dihydroxyvitamin D<sub>3</sub> [1,25(OH)<sub>2</sub>D<sub>3</sub>] as illustrated by its ability to stimulate translocation of  ...[more]

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