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  • α-Tocopheryl succinate inhibits proliferation of mesothelioma cells by selective down-regulation of fibroblast growth factor receptors

    Author(s)
    Stapelberg, M
    Tomasetti, M
    Alleva, R
    Gellert, N
    Procopio, A
    Neuzil, J
    Griffith University Author(s)
    Neuzil, Jiri
    Year published
    2004
    Metadata
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    Abstract
    a-Tocopheryl succinate (a-TOS), a redox-silent analogue of vitamin E, inhibits malignant mesotheliomas (MM) in a pre-clinical model. Here we investigated the underlying mechanism. Exposure of MM cells to a-TOS triggered apoptosis at higher and inhibited proliferation at lower concentrations, while this effect was not observed in non-malignant mesothelial cells. Sub-apoptotic doses of a-TOS caused down-regulation of fibroblast growth factor receptor-1 (FGFR1) selectively in MM cells, while the effect on FGFR2 was only marginal. FGF1 and FGF2 enhanced MM cell proliferation that was suppressed by a-TOS. Over-expression of E2F1, ...
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    a-Tocopheryl succinate (a-TOS), a redox-silent analogue of vitamin E, inhibits malignant mesotheliomas (MM) in a pre-clinical model. Here we investigated the underlying mechanism. Exposure of MM cells to a-TOS triggered apoptosis at higher and inhibited proliferation at lower concentrations, while this effect was not observed in non-malignant mesothelial cells. Sub-apoptotic doses of a-TOS caused down-regulation of fibroblast growth factor receptor-1 (FGFR1) selectively in MM cells, while the effect on FGFR2 was only marginal. FGF1 and FGF2 enhanced MM cell proliferation that was suppressed by a-TOS. Over-expression of E2F1, a transcriptional factor of FGFR1, but not its dominant-negative counterpart, partially blocked the inhibitory activity of a-TOS on MM cell proliferation. Our data suggest a novel mechanism by which a clinically intriguing agent selectively suppresses proliferation of cancer cells, as shown here for the untreatable mesotheliomas.
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    Journal Title
    Biochemical and biophysical research communications
    Volume
    318
    Issue
    3
    Publisher URI
    http://www.elsevier.com/wps/find/journaldescription.cws_home/622790/description
    DOI
    https://doi.org/10.1016/j.bbrc.2004.04.072
    Copyright Statement
    © 2004 Elsevier : Reproduced in accordance with the copyright policy of the publisher : This journal is available online - use hypertext links.
    Subject
    Medicinal and biomolecular chemistry
    Biochemistry and cell biology
    Medical biochemistry and metabolomics
    Publication URI
    http://hdl.handle.net/10072/5502
    Collection
    • Journal articles

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