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    Discovery of 9-phenylacridinediones as highly selective butyrylcholinesterase inhibitors through structure-based virtual screening

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    Date
    2020
    Author
    Joubert, Jacques
    Kapp, Erika
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    Abstract
    Butyrylcholinesterase (BuChE) is considered a promising drug target as it plays an important role in the pro-gression of late stage Alzheimer’s disease (AD). Two compound libraries were selected and 64 124 aminecontaining moieties were screened using a hierarchical virtual screening protocol to discover new selectiveBuChE inhibitors. From these and subsequent docking experiments, 9-phenylacridinedione (9-PAD) was iden-tified as a promising scaffold for selective inhibition of BuChE. Selected top dock scored 9-PADs were assayedand compounds3and6exhibited potent and highly selective human BuChE inhibition (IC50: 98 nM and 142 nM,respectively). Both molecules were also predicted to show sufficient brain permeability, not have any substantialtoxicities, especially hepatotoxicity, and no significantinvitrocytotoxicity against SH-SY5Y neuroblastoma cellsat concentrations up to 100 μM. These findings indicate that 9-PAD is a promising lead structure for the de-velopment of agents able to treat late stage AD.
    URI
    https://doi.org/10.1016/j.bmcl.2020.127075
    http://hdl.handle.net/10566/7064
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