Ligand design for human acetylcholinesterase and nicotinic acetylcholine receptors, extending beyond the conventional and canonical

Palmer Taylor, Yan Jye Shyong, Nathan Samskey, Kwok Yiu Ho, Zoran Radic', William Fenical, K. Barry Sharpless, Zrinka Kovarik, Gisela Andrea Camacho-Hernandez

研究成果: Review article同行評審

2 引文 斯高帕斯(Scopus)

摘要

We detail here distinctive departures from lead classical cholinesterase re-activators, the pyridinium aldoximes, to achieve rapid CNS penetration and reactivation of AChE in the CNS (brain and spinal cord). Such reactivation is consistent with these non-canonical re-activators enhancing survival parameters in both mice and macaques following exposure to organophosphates. Thus, the ideal cholinesterase re-activator should show minimal toxicity, limited inhibitory activity in the absence of an organophosphate, and rapid CNS penetration, in addition to its nucleophilic potential at the target, the conjugated AChE active center. These are structural properties directed to reactivity profiles at the conjugated AChE active center, reinforced by the pharmacokinetic and tissue disposition properties of the re-activator leads. In the case of nicotinic acetylcholine receptor (nAChR) agonists and antagonists, with the many existing receptor subtypes in mammals, we prioritize subtype selectivity in their design. In contrast to nicotine and its analogues that react with panoply of AChR subtypes, the substituted di-2-picolyl amine pyrimidines possess distinctive ionization characteristics reflecting in selectivity for the orthosteric site at the α7 subtypes of receptor. Here, entry to the CNS should be prioritized for the therapeutic objectives of the nicotinic agent influencing aberrant CNS activity in development or in the sequence of CNS ageing (longevity) in mammals, along with general peripheral activities controlling inflammation. (Figure presented.).

原文English
頁(從 - 到)1217-1222
頁數6
期刊Journal of Neurochemistry
158
發行號6
DOIs
出版狀態Published - 2021 9月

All Science Journal Classification (ASJC) codes

  • 生物化學
  • 細胞與分子神經科學

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