Fachbereich Veterinärmedizin



    Transcriptomic Analysis of Intestinal Tissues from Two 90-Day Feeding Studies in Rats Using Genetically Modified MON810 Maize Varieties (2017)

    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Sharbati, Jutta (WE 3)
    Bohmer, Marc
    Bohmer, Nils
    Keller, Andreas
    Backes, Christina
    Franke, Andre
    Steinberg, Pablo
    Zeljenková, Dagmar
    Einspanier, Ralf (WE 3)
    Frontiers in Genetic; Vol. 8(222) — S. 1
    DOI: 10.3389/fgene.2017.00222
    Institut für Veterinär-Biochemie

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    14163 Berlin
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    Abstract / Zusammenfassung

    Global as well as specific expression profiles of selected rat tissues
    were characterized to assess the safety of genetically modified (GM) maize MON810
    containing the insecticidal protein Cry1Ab. Gene expression was evaluated by use of
    Next Generation Sequencing (NGS) as well as RT-qPCR within rat intestinal tissues
    based on mandatory 90-day rodent feeding studies. In parallel to two 90-day feeding
    studies, the transcriptional response of rat tissues was assessed as another endpoint
    to enhance the mechanistic interpretation of GM feeding studies and/or to facilitate the
    generation of a targeted hypothesis. Rats received diets containing 33% GM maize
    (MON810) or near-isogenic control maize. As a site of massive exposure to ingested
    feed the transcriptomic response of ileal and colonic tissue was profiled via RT-qPCR
    arrays targeting apoptosis, DNA-damage/repair, unfolded protein response (UPR). For
    global RNA profiling of rat ileal tissue, we applied NGS.