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Updated: Jun 28, 2026

Local Application of Drugs to Study Nicotinic Acetylcholine Receptor Function in Mouse Brain Slices
Published on: October 29, 2012
Structure-Guided Optimization of α-Conotoxins Yields Potent and Selective Inhibitors of the Human α6β4 nAChR for
Zhengji Yin1,2, Linhong Huang1,2, Zhongdong Yang1,2
1Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
Abstract:
Nicotinic acetylcholine receptors (nAChRs) containing the α6 subunit represent a promising therapeutic target for nicotine addiction. By employing structure-guided optimization of these α-conotoxin leads, we developed potent and selective inhibitors of the human α6β4 nAChR subtype, achieving single-digit nanomolar potency and >40-fold selectivity over related nAChR subtypes. The lead compound demonstrated enhanced enzyme stability and, in a nicotine-induced conditioned place preference model in mice, effectively attenuated addictive behaviors. These results present a novel, potent and selective α6β4 nAChR antagonist with significant potential as a therapeutic candidate for nicotine use disorder.
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