Effects of upregulated indoleamine 2, 3-dioxygenase 1 by interferon γ gene transfer on interferon γ-mediated antitumor activity
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چکیده
منابع مشابه
Increasing Affinity of Interferon-γ Receptor 1 to Interferon-γ by Computer-Aided Design
We describe a computer-based protocol to design protein mutations increasing binding affinity between ligand and its receptor. The method was applied to mutate interferon-γ receptor 1 (IFN-γ-Rx) to increase its affinity to natural ligand IFN-γ, protein important for innate immunity. We analyzed all four available crystal structures of the IFN-γ-Rx/IFN-γ complex to identify 40 receptor residues ...
متن کاملInterferon-induced indoleamine 2,3-dioxygenase activity in human mononuclear phagocytes.
Interferon (IFN)-induced tryptophan degradation, catalyzed by indoleamine 2,3-dioxygenase (IDO), has been shown to mediate antimicrobial activity in epithelial cells. IDO activity has also been augmented in peripheral blood mononuclear cells (PBMC) treated with IFN or interleukin-2 (IL-2). The effector cells in this population have now been further characterized. PBMCs were isolated from normal...
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Indoleamine 2,3-dioxygenase (IDO) catalyzes the initial, rate-limiting step of tryptophan (Trp) catabolism along the kynurenine (KYN) pathway, and its induction in cells of the immune system in response to cytokines has been implicated in the regulation of antigen presentation and responses to cell-mediated immune attack. Microarray and quantitative PCR analyses of isolated human islets incubat...
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Cyclooxygenases (Cox) are rate-limiting enzymes that initiate the conversion of arachidonic acid to prostanoids. Cox-2 is the inducible isoform that is upregulated by proinflammatory agents, initiating many prostanoid-mediated pathological aspects of inflammation. In this study, we demonstrate that interferon (IFN)-gamma alone or in synergy with lipopolysaccharide (LPS) or interleukin 1alpha in...
متن کاملInhibition of Chlamydia pneumoniae replication in human aortic smooth muscle cells by gamma interferon-induced indoleamine 2, 3-dioxygenase activity.
Infection with Chlamydia pneumoniae, a human respiratory pathogen, has been implicated as a potential risk factor in atherosclerosis, possibly because the pathogen can exist in a persistent form similar to that described for Chlamydia trachomatis. The present study investigated whether gamma interferon (IFN-gamma) can induce indoleamine 2,3-dioxygenase (IDO) activity in aortic smooth muscle cel...
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ژورنال
عنوان ژورنال: Gene Therapy
سال: 2014
ISSN: 0969-7128,1476-5462
DOI: 10.1038/gt.2014.54