CYP24A1 hydroxylase plays a key role in tuning the levels and function of 1,25(OH)2D3, and inhibitors of CYP24 may be used for the treatment of a wide variety of clinical conditions. In the present work we describe the synthesis and biological properties of a small series of novel cyclopropylamine vitamin D-like CYP24A1 inhibitors, designed as structural analogues of our previously described cyclopropylamine vitamin D-like highly selective CYP24A1 inhibitor, CPA1. When tested in a cell-free assay, two of these compounds, namely VN-23 and SAP-3, were found to be potent inhibitors of CYP24A1, with compound VN-23 exhibiting selectivity with respect to CYP27B1 almost comparable to that of the lead compound CPA1. Interestingly, although compound SAP-3, is only moderately selective with respect to CYP27B1, it is almost as potent as 1,25(OH)2D3 in binding for the vitamin D receptor (VDR) and transcriptional activity, while showing low calcemic activity in vivo.

Synthesis and Biological Evaluation of Cyclopropylamine Vitamin D‐Like CYP24A1 Inhibitors

Chiellini, G.
;
Rapposelli, S.;Nesi, G.;Sestito, S.;Sabatini, M.;
2017-01-01

Abstract

CYP24A1 hydroxylase plays a key role in tuning the levels and function of 1,25(OH)2D3, and inhibitors of CYP24 may be used for the treatment of a wide variety of clinical conditions. In the present work we describe the synthesis and biological properties of a small series of novel cyclopropylamine vitamin D-like CYP24A1 inhibitors, designed as structural analogues of our previously described cyclopropylamine vitamin D-like highly selective CYP24A1 inhibitor, CPA1. When tested in a cell-free assay, two of these compounds, namely VN-23 and SAP-3, were found to be potent inhibitors of CYP24A1, with compound VN-23 exhibiting selectivity with respect to CYP27B1 almost comparable to that of the lead compound CPA1. Interestingly, although compound SAP-3, is only moderately selective with respect to CYP27B1, it is almost as potent as 1,25(OH)2D3 in binding for the vitamin D receptor (VDR) and transcriptional activity, while showing low calcemic activity in vivo.
2017
Chiellini, G.; Rapposelli, S.; Nesi, G.; Sestito, S.; Sabatini, M.; Zhu, J.; Massarelli, I.; Plum, L. A.; Clagett‐dame, M.; Deluca, H. F.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/885602
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