General synthesis of β-alanine-containing spider polyamine toxins and discovery of nephila polyamine toxins 1 and 8 as highly potent inhibitors of ionotropic glutamate receptors

Simon Lucas, Mette H Poulsen, Niels G Nørager, Anne F Barslund, Tinna B Bach, Anders S Kristensen, Kristian Strømgaard

    8 Citationer (Scopus)

    Abstract

    Certain spiders contain large pools of polyamine toxins, which are putative pharmacological tools awaiting further discovery. Here we present a general synthesis strategy for this class of toxins and prepare five structurally varied polyamine toxins. Electrophysiological testing at three ionotropic glutamate receptor subtypes reveals that two of these, Nephila polyamine toxins 1 (NPTX-1) and 8 (NPTX-8), comprise intriguing pharmacological activities by having subnanomolar IC(50) values at kainate receptors.
    OriginalsprogEngelsk
    TidsskriftJournal of Medicinal Chemistry
    Vol/bind55
    Udgave nummer22
    Sider (fra-til)10297-10301
    Antal sider5
    ISSN0022-2623
    DOI
    StatusUdgivet - 26 nov. 2012

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