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Background & Aims The enteropathy in Celiac Disease (CD) is due the adaptive and to the innate immune response to gliadin peptides. Gliadin peptide P31-43 activates innate immune response and interferes with vesicular trafficking. Type 1 interferons (INFs) and viral infections play a role in CD pathogenesis. In this paper investigators investigated the role of P31-43 in the activation of the INF-α pathway.
Methods Small intestinal biopsies of CD patients both with active disease on gluten containing diet (GCD) and in remission phase of the disease on a gluten free diet (GFD) and controls were analyzed before and after culture with P31-43. The levels of toll like receptor 7 (TLR7), myeloid differentiation primary response 88 (MyD88), myxovirus resistance protein 1 (MxA) and nuclear factor-κB (NF-κB) proteins and INF-α mRNA was analyzed in intestinal biopsies.
Intestinal biopsies from CD patients and controls were obtained after EGDS performed during routine analysis. The biopsies were immediately immersed in culture medium (Dulbecco's modified medium, DMEM) in a falcon tube and kept for 16h at 37 C before cultivation. Biopsies were cultivated as described in Barone MV1, Caputo I, Ribecco MT, Maglio M, Marzari R, Sblattero D, Troncone R, Auricchio S, Esposito C. Humoral immune response to tissue transglutaminase is related to epithelial cell proliferation in celiac disease. Gastroenterology. 2007,132(4):1245-53.
Federico II University
Published on BioPortfolio: 2017-07-19T10:53:22-0400
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