Desformylflustrabromine hydrochloride is a selective agonist of α4β2 neuronal nicotinic acetylcholine receptor (nAChR) with a pEC50 of 6.48.
Desformylflustrabromine hydrochloride is a selective agonist of α4β2 neuronal nicotinic acetylcholine receptor (nAChR) with a pEC50 of 6.48[1]. ACh-induced currents are potentiated and inhibited by Desformylflustrabromine hydrochloride in the high sensitivity (HS) and low sensitivity (LS) isoform preparations, although Desformylflustrabromine hydrochloride displays a higher potency on the LS isoform (pEC50=6.4±0.2) compare with the HS isoform (pEC50=5.6±0.2). Desformylflustrabromine hydrochloride potentiates ACh-induced responses of wild-type receptors expressed using the HS isoform preparation maximally by 350±20%, which is similar to receptors expressed via the LS isoform preparation (350±30%)[2].
References:
[1]. Nadezhda German, et al. Deconstruction of the α4β2 Nicotinic Acetylchloine (nACh) Receptor Positive Allosteric Modulator des-Formylflustrabromine (dFBr). J Med Chem. 2011 Oct 27;54(20):7259-67.
[2]. Weltzin MM, et al. Desformylflustrabromine Modulates α4β2 Neuronal Nicotinic Acetylcholine Receptor High- and Low-Sensitivity Isoforms at Allosteric Clefts Containing the β2 Subunit. J Pharmacol Exp Ther. 2015 Aug;354(2):184-94.