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IDO-Mediated Tryptophan Degradation in the Pathogenesis of Malignant Tumor Disease.
MedLine Citation:
PMID:  22084593     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Immune escape is a fundamental trait of cancer in which the Th1-type cytokine interferon- γ (IFN-γ) seems to play a key role. Among other tumoricidal biochemical pathways, IFN-γ induces the tryptophan-degrading enzyme indoleamine 2,3-dioxygenase (IDO) in a variety of cells including macrophages, dendritic cells (DCs) and tumor cells. IDO activity has been shown to reflect the extent and the course in a plethora of malignancies including prostate, colorectal, pancreatic, cervical, endometrial, gastric, lung, bladder, ovarian, esophageal and renal cell carcinomas, glioblastomas, mesotheliomas, and melanomas. Furthermore IDO activity during malignant tumor diseases seems to be part of the tumoricidal immune defense strategy, which in the long run is detrimental to the host, when tryptophan deprivation and production of pro-apoptotic tryptophan catabolites counteract T-cell responsiveness.
Authors:
Robert Sucher; Katharina Kurz; Guenter Weiss; Raimund Margreiter; Dietmar Fuchs; Gerald Brandacher
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Publication Detail:
Type:  Journal Article     Date:  2010-06-10
Journal Detail:
Title:  International journal of tryptophan research : IJTR     Volume:  3     ISSN:  1178-6469     ISO Abbreviation:  Int J Tryptophan Res     Publication Date:  2010  
Date Detail:
Created Date:  2011-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101513378     Medline TA:  Int J Tryptophan Res     Country:  New Zealand    
Other Details:
Languages:  eng     Pagination:  113-20     Citation Subset:  -    
Affiliation:
Center of Operative Medicine, Department of Visceral, Transplant and Thoracic Surgery.
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