Design and pharmacological evaluation of PF-4840154, a non-electrophilic reference agonist of the TrpA1 channel
作者:Thomas Ryckmans、Aisah A. Aubdool、Jennifer V. Bodkin、Peter Cox、Susan D. Brain、Thomas Dupont、Emma Fairman、Yoshinobu Hashizume、Naoko Ishii、Teruhisa Kato、Linda Kitching、Julie Newman、Kiyoyuki Omoto、David Rawson、Jade Strover
DOI:10.1016/j.bmcl.2011.06.035
日期:2011.8
TrpA1 is an ion channel involved in nociceptive and inflammatory pain. It is implicated in the detection of chemical irritants through covalent binding to a cysteine-rich intracellular region of the protein. While performing an HTS of the Pfizer chemical collection, a class of pyrimidines emerged as a non-reactive, non-covalently binding family of agonists of the rat and human TrpA1 channel. Given the issues identified with the reference agonist Mustard Oil (MO) in screening, a new, non-covalently binding agonist was optimized and proved to be a superior agent to MO for screening purposes. Compound 16a (PF-4840154) is a potent, selective agonist of the rat and human TrpA1 channel and elicited TrpA1-mediated nocifensive behaviour in mouse. (C) 2011 Elsevier Ltd. All rights reserved.