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Resorcinol-, catechol- and saligenin-based bronchodilating beta2-agonists as inhibitors of human cholinesterase activity

Bosak, Anita; Knežević, Anamarija; Gazić Smilović, Ivana; Šinko, Goran; Kovarik, Zrinka (2017) Resorcinol-, catechol- and saligenin-based bronchodilating beta2-agonists as inhibitors of human cholinesterase activity. Journal of Enzyme Inhibition and Medicinal Chemistry, 32 (1). pp. 789-797. ISSN 1475-6366

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We investigated the influence of bronchodilating 2-agonists on the activity of human acetylcholinesterase (AChE) and usual, atypical and fluoride-resistant butyrylcholinesterase (BChE). We determined the inhibition potency of racemate and enantiomers of fenoterol as a resorcinol derivative, isoetharine and epinephrine as catechol derivatives, and salbutamol and salmeterol as saligenin derivatives. All of the tested compounds reversibly inhibited cholinesterases with Ki constants ranging from 9.8 µM to 6.4 mM, and had the highest inhibition potency toward usual BChE, but generally none of the cholinesterases displayed any stereoselectivity. Kinetic and docking results revealed that the inhibition potency of the studied compounds could be related to the size of the hydroxyaminoethyl chain on the benzene ring. The additional - interaction of salmeterol’s benzene ring and Trp286 and hydrogen bond with His447 probably enhanced inhibition by salmeterol which was singled out as the most potent inhibitor of all the cholinesterases.

Item Type: Article
Uncontrolled Keywords: acetylcholinesterase; butyrylcholinesterase; adrenaline; salmeterol; terbutaline
Subjects: BIOMEDICINE AND HEALTHCARE > Basic Medical Sciences
BIOMEDICINE AND HEALTHCARE > Public Health and Health Care > Public Health
Divisions: Division of Organic Chemistry and Biochemistry
Project titleProject leaderProject codeProject type
Dizajn, sinteza i evaluacija novih protuotrova kod trovanja živčanim bojnim otrovima i pesticidima-CHOLINESTERASEZrinka KovarikIP-2013-11-4307HRZZ
Depositing User: Anamarija Knežević
Date Deposited: 25 Aug 2017 12:15
DOI: 10.1080/14756366.2017.1326109

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