Toll‐like receptor 2–mediated innate immune response in human nonparenchymal liver cells toward adeno‐associated viral vectors
Marianna Hösel, Mathias Broxtermann, Hanna Janicki, Knud Esser, Silke Arzberger, Pia Hartmann, Sonja Gillen, Jörg Kleeff, Dirk Stabenow, Margarete Odenthal, Percy Knolle, Michael Hallek, Ulrike Protzer, Hildegard Büning – 24 August 2011 – Adeno‐associated viral vectors (rAAV) are frequently used in gene therapy trials. Although rAAV vectors are of low immunogenicity, humoral as well as T cell responses may be induced. While the former limits vector reapplication, the expansion of cytotoxic T cells correlates with liver inflammation and loss of transduced hepatocytes.