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Front Biosci. 2008 May 1;13:3699-713.

Inflammatory bowel diseases: multiple benefits from therapy with dipeptidyl- and alanyl-aminopeptidase inhibitors.

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IMTM GmbH, Department ImmunoPharm, Magdeburg, Germany.


Inflammatory bowel diseases (IBD) are driven by imbalances in innate and acquired immune response. In IBD two dysregulated T cell subsets are in the focus of interest: activated effector T cells and regulatory T cells. These T cell subsets are characterized by a strong expression of the ectopeptidases dipeptidyl peptidase IV (DPIV /CD26) and aminopeptidase N (APN/CD13), which are thought to a role in the control of immune activation and in regulating cellular communication by hydrolyzing bioactive polypeptides. Since inhibitors of both enzymes were shown to be effective in limiting immune activation processes in vitro as well as in vivo, they emerged as new drug candidates for the treatment of diseases associated with an imbalanced T cell response, such as IBD. In this review we intent to throw light on the putative role of DPIV, APN and related enzymes in the regulation of immune and non-immune processes in inflammatory bowel diseases, on possible benefits from peptidase inhibitor therapy in these diseases as well on the gaps of knowledge in this field.

[Indexed for MEDLINE]

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