Pharmacodynamic evaluation of novel Catechol-O-methyltransferase inhibitors
| Autor: | Maria Paula Serrão, Fernanda Borges, Patrício Soares-da-Silva, Tiago H. Silva, Sofia Pinheiro |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Cell Survival Catechols Pharmacology COMT inhibitor Catechol O-Methyltransferase behavioral disciplines and activities 03 medical and health sciences chemistry.chemical_compound Neuroblastoma 0302 clinical medicine Cell Line Tumor mental disorders Nitriles medicine Animals Humans Entacapone Viability assay Enzyme Inhibitors Cytotoxicity Catechol-O-methyl transferase Tolcapone fungi Liver Neoplasms Brain Catechol O-Methyltransferase Inhibitors Parkinson Disease medicine.disease Rats 030104 developmental biology nervous system chemistry Liver Pharmacodynamics 030217 neurology & neurosurgery medicine.drug |
| Zdroj: | European journal of pharmacology. 847 |
| ISSN: | 1879-0712 |
| Popis: | Currently, peripheral COMT inhibitors have an important role in the treatment of Parkinson's disease, and central COMT inhibitors have a potential role in the treatment of various neuropsychiatric disorders, such as attention deficit hyperactivity disorder. Adverse reactions, low bioavailability and short elimination half-lives have prompted the development of new selective COMT inhibitors. The objective of this study was to evaluate the pharmacodynamic properties of novel tight-binding COMT inhibitors (NC, NE, NDE, NCAPE, CNCAFBn, CNCAPE, NCAFBn, CNCAPA, CNCABA and CNCAHA) and compared to standard inhibitors tolcapone and entacapone. The activity of soluble (S) and membrane bound (MB) COMT from rat liver and brain was assessed in the presence of varying concentrations of each inhibitor. NE and NC behaved most potently against liver S-COMT, and CNCAPE was the most potent inhibitor against brain MB-COMT. The cytotoxicity of tolcapone and CNCAPE in human neuroblastoma SK-N-SH cells and human liver adenocarcinoma SK-HEP-1 cells was also assessed. At lower concentrations, CNCAPE did not reduce cell viability, suggesting that CNCAPE may have a potential therapeutic role as a centrally active COMT inhibitor. |
| Databáze: | OpenAIRE |
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