FGF2 and dual agonist of NCAM and FGF receptor 1, Enreptin, rescue neurite outgrowth loss in hippocampal neurons expressing mutated huntingtin proteins

Mirolyuba Ilieva, Troels T. Nielsen, Tanja Michel, Stanislava Pankratova

    Abstract

    In the present study, we developed an in vitro model of Huntington disease (HD) by transfecting primary rat hippocampal neurons with plasmids coding for m-htt exon 1 with different number of CAG repeats (18, 50 and 115) and demonstrated the influence of the length of polyQ sequence on neurite elongation. We found that exogenously applied FGF2 significantly rescued the m-htt-induced loss of neurite outgrowth. Moreover, the Enreptin peptide, an FGFR1 and NCAM dual agonist, had a similar neuritogenic effect to FGF2 in clinically relevant m-htt 50Q-expressing neurons. This study has developed an in vitro model of primary hippocampal neurons transfected with m-htt-coding vectors that is a powerful tool to study m-htt–related effects on neuronal placticity.

    OriginalsprogEngelsk
    TidsskriftJournal of Neural Transmission
    Vol/bind126
    Udgave nummer11
    Sider (fra-til)1493-1500
    Antal sider8
    ISSN0300-9564
    DOI
    StatusUdgivet - 1 nov. 2019

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