5 research outputs found

    Hipoxia szerepe a vaszkuláris simaizom sejtek oszteogenikus differenciációjában

    No full text
    A vaszkuláris kalcifikáció a kardiovaszkuláris betegségek hátterében álló, súlyos következményekkel járó folyamat. Kialakulásában meghatározó szerepet játszik a hipoxia. A hipoxia bizonyítottan elősegíti a vaszkuláris kalcifikációt illetve a simaizomsejtek oszteokondrogenikus differenciációját.BSc/BABiológia Bscg

    Efficient treatment of a preclinical inflammatory bowel disease model with engineered bacteria

    Get PDF
    We developed an orally administered, engineered, bacterium-based, RNA interference-mediated therapeutic method to significantly reduce the symptoms in the most frequently used animal model of inflammatory bowel disease. This bacterium-mediated RNA interference strategy was based on the genomically stable, non-pathogenic E. coli MDS42 strain, which was engineered to constitutively produce invasin and the listeriolysin O cytolysin. These proteins enabled the bacteria first to invade the colon epithelium and then degrade in the phagosome. This allowed the delivery of a plasmid encoding small hairpin RNA (shRNA) targeting tumor necrosis factor (TNF) into the cytoplasm of the target cells. The expression levels of TNF and other cytokines significantly decreased upon this treatment in dextran sulfate sodium (DSS)-induced colitis, and the degree of inflammation was significantly reduced. With further safety modifications this method could serve as a safe and side effect-free alternative to biologicals targeting TNF or other inflammatory mediators
    corecore