Lin Zongtao, Marepally Srinivasa Reddy, Ma Dejian, Myers Linda K, Postlethwaite Arnold E, Tuckey Robert C, Cheng Chloe Y S, Kim Tae-Kang, Yue Junming, Slominski Andrzej T, Miller Duane D, Li Wei
Department of Veterans Affairs Medical Center, Memphis, Tennessee 38104, United States.
School of Chemistry and Biochemistry, University of Western Australia , Crawley, WA 6009, Australia.
J Med Chem. 2015 Oct 8;58(19):7881-7. doi: 10.1021/acs.jmedchem.5b00881. Epub 2015 Sep 28.
Bioactive vitamin D3 metabolites 20S,24S-dihydroxyvitamin D3 [20S,24S(OH)2D3] and 20S,24R-dihydroxyvitamin D3 [20S,24R(OH)2D3] were chemically synthesized and confirmed to be identical to their enzymatically generated counterparts. The absolute configurations at C24 and its influence on the kinetics of 1α-hydroxylation by CYP27B1 were determined. Their corresponding 1α-hydroxyl derivatives were subsequently produced. Biological comparisons of these products showed different properties with respect to vitamin D3 receptor activation, anti-inflammatory activity, and antiproliferative activity, with 1α,20S,24R(OH)2D3 being the most potent compound.
生物活性维生素D3代谢物20S,24S-二羟基维生素D3 [20S,24S(OH)2D3]和20S,24R-二羟基维生素D3 [20S,24R(OH)2D3]经化学合成,并被证实与酶促生成的对应物相同。确定了C24处的绝对构型及其对CYP27B1进行1α-羟基化动力学的影响。随后制备了它们相应的1α-羟基衍生物。这些产物的生物学比较显示,在维生素D3受体激活、抗炎活性和抗增殖活性方面具有不同特性,其中1α,20S,24R(OH)2D3是最有效的化合物。