TITLE

In Vitro Differentiation of Human Monocytes into Dendritic Cells by Peptic–Tryptic Digest of Gliadin Is Independent of Genetic Predisposition and the Presence of Celiac Disease

AUTHOR(S)
Maryam Rakhimova; Birgit Esslinger; Anja Schulze-Krebs; Eckhart Hahn; Detlef Schuppan; Walburga Dieterich
PUB. DATE
January 2009
SOURCE
Journal of Clinical Immunology;Jan2009, Vol. 29 Issue 1, p29
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Abstract Introduction  This study was done to further reveal the role of the innate immune system in celiac disease. Methods  Dendritic cells were matured from venous blood of patients with active or treated celiac disease and DQ2–DQ8-positive or negative controls. Dendritic cells were treated with a peptic–tryptic digest of gliadin (500 μg/ml) and their activation was analyzed by fluorescent-activated cell sorting analysis, cytokine secretion, and their ability to elicit T cell proliferation. Results and Discussion  Gliadin upregulated interleukin (IL)-6, IL-8, and IL-12 (p40) secretion in dendritic cells and induced strong expression of the maturation markers human leukocyte antigen (HLA)-DR, CD25, CD83, and CD86 of all subjects irrespective of their genotype or the presence of disease, whereas the digest of bovine serum albumin showed no effect. However, gliadin-stimulated dendritic cells from active celiac showed enhanced stimulation of autologous T cells compared to the other groups. Conclusion  Further research should be aimed at identifying the mechanisms that control inflammation in healthy individuals.
ACCESSION #
36359109

 

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