Abstract |
Reducing aldosterone action is beneficial in various major diseases such as heart failure. Currently, this is achieved with mineralocorticoid receptor antagonists, however, aldosterone synthase ( CYP11B2) inhibitors may offer a promising alternative. In this study, we used three-dimensional modeling of CYP11B2 to model the binding modes of the natural substrate 18-hydroxycorticosterone and the recently published CYP11B2 inhibitor R- fadrozole as a rational guide to design 44 structurally simple and achiral 1-benzyl-1H-imidazoles. Their syntheses, in vitro inhibitor potencies, and in silico docking are described. Some promising CYP11B2 inhibitors were identified, with our novel lead MOERAS115 (4-((5-phenyl-1H-imidazol-1-yl)methyl)benzonitrile) displaying an IC(50) for CYP11B2 of 1.7 nM, and a CYP11B2 (versus CYP11B1) selectivity of 16.5, comparable to R- fadrozole (IC(50) for CYP11B2 6.0 nM, selectivity 19.8). Molecular docking of the inhibitors in the models enabled us to generate posthoc hypotheses on their binding modes, providing a valuable basis for future studies and further design of CYP11B2 inhibitors.
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Authors | Luc Roumen, Joris W Peeters, Judith M A Emmen, Ilona P E Beugels, Erica M G Custers, Marcel de Gooyer, Ralf Plate, Koen Pieterse, Peter A J Hilbers, Jos F M Smits, Jef A J Vekemans, Dirk Leysen, Harry C J Ottenheijm, Henk M Janssen, J J Rob Hermans |
Journal | Journal of medicinal chemistry
(J Med Chem)
Vol. 53
Issue 4
Pg. 1712-25
(Feb 25 2010)
ISSN: 1520-4804 [Electronic] United States |
PMID | 20121113
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- 4-((5-phenyl-1H-imidazol-1-yl)methyl)benzonitrile
- Benzyl Compounds
- Imidazoles
- 18-Hydroxycorticosterone
- Cytochrome P-450 CYP11B2
- Fadrozole
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Topics |
- 18-Hydroxycorticosterone
(chemistry)
- Animals
- Benzyl Compounds
(chemical synthesis, chemistry, pharmacology)
- Catalytic Domain
- Cell Line
- Cricetinae
- Cricetulus
- Cytochrome P-450 CYP11B2
(antagonists & inhibitors, chemistry)
- Fadrozole
(chemistry)
- Humans
- Imidazoles
(chemical synthesis, chemistry, pharmacology)
- Models, Molecular
- Molecular Dynamics Simulation
- Protein Binding
- Stereoisomerism
- Structure-Activity Relationship
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