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3D-QSAR and 3D-QSSR models of negative allosteric modulators facilitate the design of a novel selective antagonist of human ?4?2 neuronal nicotinic acetylcholine receptors.


ABSTRACT: Subtype selective molecules for ?4?2 neuronal nicotinic acetylcholine receptors (nAChRs) have been sought as novel therapeutics for nicotine cessation. ?4?2 nAChRs have been shown to be involved in mediating the addictive properties of nicotine while other subtypes (i.e., ?3?4 and ?7) are believed to mediate the undesired effects of potential CNS drugs. To obtain selective molecules, it is important to understand the physiochemical features of ligands that affect selectivity and potency on nAChR subtypes. Here we present novel QSAR/QSSR models for negative allosteric modulators of human ?4?2 nAChRs and human ?3?4 nAChRs. These models support previous homology model and site-directed mutagenesis studies that suggest a novel mechanism of antagonism. Additionally, information from the models presented in this work was used to synthesize novel molecules; which subsequently led to the discovery of a new selective antagonist of human ?4?2 nAChRs.

SUBMITTER: Henderson BJ 

PROVIDER: S-EPMC3274641 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature

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3D-QSAR and 3D-QSSR models of negative allosteric modulators facilitate the design of a novel selective antagonist of human α4β2 neuronal nicotinic acetylcholine receptors.

Henderson Brandon J BJ   Orac Crina M CM   Maciagiewicz Iwona I   Bergmeier Stephen C SC   McKay Dennis B DB  

Bioorganic & medicinal chemistry letters 20111120 4


Subtype selective molecules for α4β2 neuronal nicotinic acetylcholine receptors (nAChRs) have been sought as novel therapeutics for nicotine cessation. α4β2 nAChRs have been shown to be involved in mediating the addictive properties of nicotine while other subtypes (i.e., α3β4 and α7) are believed to mediate the undesired effects of potential CNS drugs. To obtain selective molecules, it is important to understand the physiochemical features of ligands that affect selectivity and potency on nAChR  ...[more]

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