Novel Strategies for the Design of New Potent and Selective Human A3 Receptor Antagonists: An Update
Authors: Moro, S.; Deflorian, F.; Bacilieri, M.; Spalluto, G.
Source: Current Medicinal Chemistry, Volume 13, Number 6, March 2006 , pp. 639-645(7)
Publisher: Bentham Science Publishers
Abstract:A computer-aided approach has been developed in order to understand the molecular pharmacology of human A3R, and specifically, to lead to the discovery and structural refinement of new, potent and selective human A3R antagonists. This review focuses on our combined target-based and ligand-based drug design strategy, recently applied to provide more accurate information about the recognition mode on human A3R of some pyrazolotriazolopyrimidine and triazoloquinoxalinone analogs. The 3D rhodopsin-based homology model of human A3R has represented the starting point of our approach. A high throughput molecular docking method on the considered antagonists has allowed us to generate a receptor-based pharmacophore model. A novel "Y-shaped" pharmacophore binding motif has been proposed for both pyrazolotriazolopyrimidine and triazoloquinoxalinone derivatives. Moreover, related receptor-based 3D-QSAR analysis has been carried out to provide a suitable tool for prediction of the antagonists binding affinity on human A3R.
Document Type: Research Article
Affiliations: Molecular Modeling Section, Department of Pharmaceutical Sciences, University of Padova, Via Marzolo, 5 - 35100 Padova Italy.
Publication date: 2006-03-01
- Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.