In the gastrointestinal tract, the intestinal epithelium forms an important barrier between bacteria and antigens of the intestinal lumen on the one hand and immune cells of the lamina propria on the other hand. In the present work, the role of selected chemokine receptors and type I and type II cytokine receptors that are expressed by intestinal epithelial cells was investigated. In detail, a comprehensive analysis of the expression, signal transduction and the specific biological functions of these receptor/ligand systems was performed. While CXCL12/CXCR4 play a major role in colorectal carcinogenesis and in metastasis of colorectal tumors, the chemokines CCL20 and CXCL16 as well as the cytokines IL-31, IL-22 and IL-26 mediate intestinal inflammation. Their expression is upregulated in patients with inflammatory bowel diseases. In addition, IL-22 contributes to the maintenance and protection of the intestinal barrier.
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In the gastrointestinal tract, the intestinal epithelium forms an important barrier between bacteria and antigens of the intestinal lumen on the one hand and immune cells of the lamina propria on the other hand. In the present work, the role of selected chemokine receptors and type I and type II cytokine receptors that are expressed by intestinal epithelial cells was investigated. In detail, a comprehensive analysis of the expression, signal transduction and the specific biological functions of...
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