Flavonoids with M1 Muscarinic Acetylcholine Receptor Binding Activity

Autor: Stephen W. Doughty, Meyyammai Swaminathan, Noorsaadah Abd Rahman, Michael J. C. Buckle, Chin Fei Chee, Lip Yong Chung, Sek Peng Chin
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Molecules, Vol 19, Iss 7, Pp 8933-8948 (2014)
Molecules; Volume 19; Issue 7; Pages: 8933-8948
Molecules
ISSN: 1420-3049
Popis: Muscarinic acetylcholine receptor-active compounds have potential for the treatment of Alzheimer’s disease. In this study, a series of natural and synthetic flavones and flavonols was assayed in vitro for their ability to inhibit radioligand binding at human cloned M1 muscarinic receptors. Several compounds were found to possess competitive binding affinity (Ki = 40–110 µM), comparable to that of acetylcholine (Ki = 59 µM). Despite the fact that these compounds lack a positively-charged ammonium group under physiological conditions, molecular modelling studies suggested that they bind to the orthosteric site of the receptor, mainly through non-polar interactions.
Databáze: OpenAIRE