Characterization of in vivo brain muscarinic acetylcholine receptor subtype selectivity by competition studies against (R,S)-[125I]QNB

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 ◽  
...  
Keyword(s):  
Acetylcholine Receptor ◽  
Muscarinic Acetylcholine Receptor ◽  
Receptor Subtype ◽  
Muscarinic Acetylcholine ◽  
Subtype Selectivity

scholarly journals Detection and Quantification of Allosteric Modulation of Endogenous M4 Muscarinic Acetylcholine Receptor Using Impedance-Based Label-Free Technology in a Neuronal Cell Line

2014 ◽  
Vol 20 (5) ◽  
pp. 646-654 ◽  
Author(s):  
Amy N. Y. Chen ◽  
Daniel T. Malone ◽  
Kavita Pabreja ◽  
Patrick M. Sexton ◽  
Arthur Christopoulos ◽  
...  
Keyword(s):  
Cell Line ◽  
Acetylcholine Receptor ◽  
Muscarinic Acetylcholine Receptor ◽  
Neuronal Cell ◽  
Allosteric Modulation ◽  
Receptor Subtype ◽  
Label Free ◽  
Neuronal Cell Line ◽  
Muscarinic Acetylcholine ◽  
Subtype Selectivity

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.

scholarly journals Characterization of Muscarinic Acetylcholine Receptor in Rat Sertoli Cells

Endocrinology ◽  
2001 ◽  
Vol 142 (11) ◽  
pp. 4701-4710 ◽  
Author(s):  
Marilene O. R. Borges ◽  
Maria L. C. Abreu ◽  
Catarina S. Porto ◽  
Maria Christina W. Avellar
Keyword(s):  
Acetylcholine Receptor ◽  
Sertoli Cells ◽  
Muscarinic Acetylcholine Receptor ◽  
Muscarinic Acetylcholine
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