Structural Features of Iperoxo–BQCA Muscarinic Acetylcholine Receptor Hybrid Ligands Determining Subtype Selectivity and Efficacy

Author(s):  
Matthew C. L. Wakeham ◽  
Briana J. Davie ◽  
David K. Chalmers ◽  
Arthur Christopoulos ◽  
Ben Capuano ◽  
...  
1995 ◽  
Vol 687 (1-2) ◽  
pp. 71-78 ◽  
Author(s):  
Miriam S. Gitler ◽  
Sheila F. Boulay ◽  
Virendar K. Sood ◽  
Dan W. McPherson ◽  
F.F. (Russ) Knap ◽  
...  

2014 ◽  
Vol 20 (5) ◽  
pp. 646-654 ◽  
Author(s):  
Amy N. Y. Chen ◽  
Daniel T. Malone ◽  
Kavita Pabreja ◽  
Patrick M. Sexton ◽  
Arthur Christopoulos ◽  
...  

Allosteric modulators of G protein–coupled receptors have the potential to achieve greater receptor subtype selectivity compared with ligands targeting the orthosteric site of this receptor family. However, the high attrition rate in GPCR drug discovery programs has highlighted the need to better characterize lead compounds in terms of their allosteric action, as well as the signals they elicit. Recently, the use of label-free technologies has been proposed as an approach to overcome some limitations of endpoint-based assays and detect global changes in the ligand-stimulated cell. In this study, we assessed the ability of an impedance-based label-free technology, xCELLigence, to detect allosteric modulation in a neuronal cell line natively expressing rodent M4 muscarinic acetylcholine receptors. We were able to demonstrate that positive allosteric modulation of the endogenous M4 muscarinic acetylcholine receptor can be detected using this technology. Importantly, the allosteric parameters estimated from the label-free approach are comparable to those estimated from endpoint-based assays.


2017 ◽  
Vol 137 ◽  
pp. 327-337 ◽  
Author(s):  
Fabio Del Bello ◽  
Alessandro Bonifazi ◽  
Gianfabio Giorgioni ◽  
Riccardo Petrelli ◽  
Wilma Quaglia ◽  
...  

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