Selective aldosterone synthase inhibitors reduce aldosterone formation in vitro and in vivo
| Autor: | Rolf W. Hartmann, Barbara Birk, Simon Lucas, Christina Ries, Ralf Heim |
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| Rok vydání: | 2008 |
| Předmět: |
Aldosterone synthase
Male medicine.medical_specialty medicine.drug_class Endocrinology Diabetes and Metabolism Clinical Biochemistry Drug Evaluation Preclinical Quinolones Biochemistry Cell Line chemistry.chemical_compound Structure-Activity Relationship Endocrinology Cricetulus Adrenocorticotropic Hormone In vivo Internal medicine Cricetinae Adrenal Glands medicine Animals Cytochrome P-450 CYP11B2 Humans Rats Wistar Molecular Biology Aldosterone chemistry.chemical_classification biology ATP synthase Cell Biology In vitro Rats Enzyme chemistry Mineralocorticoid biology.protein Molecular Medicine Homeostasis |
| Zdroj: | The Journal of steroid biochemistry and molecular biology. 116(3-5) |
| ISSN: | 1879-1220 |
| Popis: | Aldosterone plays a crucial role in salt and water homeostasis but in case of pathologically increased plasma aldosterone levels it is also involved in the development and the progression of severe cardiovascular diseases like heart failure and myocardial fibrosis. For the treatment of these diseases we propose inhibition of the aldosterone forming enzyme CYP11B2 as a new pharmacological strategy. We recently developed in vitro highly potent and selective inhibitors of human CYP11B2, but the evidence of their in vivo activity is still missing. For this purpose, rat aldosterone synthase gene was cloned and expressed in V79MZ cells to establish a new screening assay for the identification of “rat-active” substances. Compound 7 from the class of heteroaryl substituted 3,4-dihydro-1H-quinolin-2-ones showed a moderate inhibitory effect (65% at 2 μM) on rat CYP11B2 in vitro. Furthermore, it diminished the conversion of deoxycorticosterone to aldosterone in rat adrenals and significantly reduced plasma aldosterone levels in vivo. |
| Databáze: | OpenAIRE |
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