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Indoleamine 2,3-dioxygenase 1

Indo, indoleamine 2,3-dioxygenase, IDO
This gene encodes indoleamine 2,3-dioxygenase (IDO) - a heme enzyme that catalyzes the first and rate-limiting step in tryptophan catabolism to N-formyl-kynurenine. This enzyme acts on multiple tryptophan substrates including D-tryptophan, L-tryptophan, 5-hydroxy-tryptophan, tryptamine, and serotonin. This enzyme is thought to play a role in a variety of pathophysiological processes such as antimicrobial and antitumor defense, neuropathology, immunoregulation, and antioxidant activity. Through its expression in dendritic cells, monocytes, and macrophages this enzyme modulates T-cell behavior by its peri-cellular catabolization of the essential amino acid tryptophan.[provided by RefSeq, Feb 2011] (from NCBI)
Top mentioned proteins: CAN, ACID, V1a, HAD, IL-10
Papers using Indo antibodies
To reg or not to reg: that is the question in COPD.
Idzko Marco, In PLoS ONE, 2007
... , the following molecules were added after T cell activation: indoleamine-2,3-dioxygenase-1 (IDO) inhibitor (L-1-methyl-tryptophan, L-1MT - Sigma Aldrich) [1 mM]; inhibitor of ...
MicroRNA-binding viral protein interferes with Arabidopsis development
Pooggin Mikhail M. et al., In Nucleic Acids Research, 2004
... This work was supported by the Swiss National Science Foundation, the Indo-Swiss Collaboration in Biotechnology, the Swiss Office for Education and Science as part of the EU Gene Silencing in Transgenic Plants Projects, and by ...
Inhibition of Allogeneic T Cell Proliferation by Indoleamine 2,3-Dioxygenase–expressing Dendritic Cells
Opelz Gerhard et al., In The Journal of Experimental Medicine, 1994
... Finally, the linearized recombinant IDO plasmid was transfected by Effectene Transfection Reagent kit (QIAGEN) into adenovirus packaging cells ...
Papers on Indo
The regulation of the Treg/Th17 balance by mesenchymal stem cells in human systemic lupus erythematosus.
Sun et al., In Cell Mol Immunol, 05 Nov 2015
Inhibitors targeting TGF-β, IL-6, indoleamine 2,3-dioxygenase (IDO), and prostaglandin E2 were added to the co-culture system, and the percentages of Treg and Th17 cells were observed.
Bioactivites of two common polyphenolic compounds: Verbascoside and catechin.
Fuchs et al., İstanbul, Turkey. In Pharm Biol, 01 Nov 2015
The effects of the compounds on immune activation markers such as indoleamine 2,3-dioxygenase (IDO) activity as well as on neopterin formation and nuclear factor-κB (NF-κB) activation were investigated.
Role of indoleamine 2,3-dioxygenase in health and disease.
Thomas et al., Sydney, Australia. In Clin Sci (lond), 31 Oct 2015
IDO1 (indoleamine 2,3-dioxygenase 1) is a member of a unique class of mammalian haem dioxygenases that catalyse the oxidative catabolism of the least-abundant essential amino acid, L-Trp (L-tryptophan), along the kynurenine pathway.
Study of Genetic Diversity of KIR and TLR in the Rabhas, an endogamous primitive tribe of India.
Chaudhuri et al., Shiliguri, India. In Hum Immunol, 28 Oct 2015
UNASSIGNED: The Rabha tribe is a little known small endogamous population belonging to an Indo-mongoloid group of north-eastern India.
Tumor-Expressed IDO Recruits and Activates MDSCs in a Treg-Dependent Manner.
Wolchok et al., New York City, United States. In Cell Rep, 22 Oct 2015
UNASSIGNED: Indoleamine 2,3-dioxygenase (IDO) has been described as a major mechanism of immunosuppression in tumors, though the mechanisms of this are poorly understood.
Suppression of IL-10 production by activated B cells via a cell contact-dependent cyclooxygenase-2 pathway upregulated in IFN-γ-treated mesenchymal stem cells.
Holan et al., Praha, Czech Republic. In Immunobiology, 12 Oct 2015
Analysis of the gene expression of IFN-γ- or IFN-γ and LPS-treated MSCs revealed a strong upregulation of genes for indoleamine-2,3-dioxygenase (IDO), cyclooxygenase-2 (Cox-2) and programmed cell death-ligand 1 (PD-L1).
Indoleamine 2,3-Dioxygenase Fine-Tunes Immune Homeostasis in Atherosclerosis and Colitis through Repression of Interleukin-10 Production.
Mallat et al., Paris, France. In Cell Metab, 01 Oct 2015
Indoleamine 2,3-dioxygenase 1 (Ido1) is a rate-limiting enzyme that catalizes the degradation of tryptophan along the kynurenine pathway.
Tumoral Immune Resistance Mediated by Enzymes That Degrade Tryptophan.
Van den Eynde et al., Brussels, Belgium. In Cancer Immunol Res, 30 Sep 2015
In view of recent observations, and taking into account the differences between human and mouse data that differ in several aspects, in this Cancer Immunology at the Crossroads article, we discuss the role of the three enzymes that have been proposed to control tryptophan catabolism in tumoral immune resistance: indoleamine 2,3-dioxygenase 1 (IDO1), tryptophan 2,3-dioxygenase (TDO), and indoleamine 2,3-dioxygenase 2 (IDO2).
Signaling Circuits and Regulation of Immune Suppression by Ovarian Tumor-Associated Macrophages.
Gujja et al., Little Rock, United States. In Vaccines (basel), Dec 2014
This review provides an appraisal of some of the key signaling pathways that may contribute to immune suppression in ovarian cancer, with a particular focus on the potential involvement of the c-KIT/PI3K/AKT, wnt/β-catenin, IL-6/STAT3 and AhR signaling pathways in regulation of indoleamine 2,3-dioxygenase expression in tumor-associated macrophages.
Tryptophan Catabolism in Chronic Viral Infections: Handling Uninvited Guests.
Routy et al., Montréal, Canada. In Int J Tryptophan Res, Dec 2014
l-Tryptophan (l-Trp) is an essential amino acid that possesses diverse metabolic, neurological, and immunological roles spanning from the synthesis of proteins, neurotransmitter serotonin, and neurohormone melatonin, to its degradation into immunosuppressive catabolites by indoleamine-2, 3-dioxygenase (IDO) in the kynurenine pathway (KP).
The Role of Indoleamine 2, 3-Dioxygenase in Immune Suppression and Autoimmunity.
Langridge et al., Loma Linda, United States. In Vaccines (basel), Dec 2014
Indoleamine 2, 3-dioxygenase (IDO) is the first and rate limiting catabolic enzyme in the degradation pathway of the essential amino acid tryptophan.
Aryl hydrocarbon receptor control of a disease tolerance defence pathway.
Puccetti et al., Perugia, Italy. In Nature, Aug 2014
However, on LPS rechallenge, AhR engaged in long-term regulation of systemic inflammation only in the presence of indoleamine 2,3-dioxygenase 1 (IDO1).
Neuroinflammation and comorbidity of pain and depression.
Dantzer et al., Houston, United States. In Pharmacol Rev, 2013
These mechanisms include direct effects of cytokines on the neuronal environment or indirect effects via downregulation of G protein-coupled receptor kinase 2, activation of the tryptophan-degrading enzyme indoleamine 2,3-dioxygenase that generates neurotropic kynurenine metabolites, increased brain extracellular glutamate, and the switch of GABAergic neurotransmission from inhibition to excitation.
Inhibition of increased indoleamine 2,3-dioxygenase activity attenuates Toxoplasma gondii replication in the lung during acute infection.
Saito et al., Kyoto, Japan. In Cytokine, 2012
Inhibition of increased IDO activity maybe involved in the antiparasitic mechanism during Toxoplasma gondii (T. gondii) infection in vivo.
Brain indoleamine 2,3-dioxygenase contributes to the comorbidity of pain and depression.
Mao et al., Boston, United States. In J Clin Invest, 2012
Ido1 gene knockout or pharmacological inhibition of hippocampal IDO1 activity attenuated both nociceptive and depressive behavior
M. tuberculosis induces potent activation of IDO-1, but this is not essential for the immunological control of infection.
Saunders et al., New York City, United States. In Plos One, 2011
IDO-1-deficiency fails to impact on the immune control and the outcome of the infection in the mouse model of tuberculosis.
Immunological and nonimmunological effects of indoleamine 2,3-dioxygenase on breast tumor growth and spontaneous metastasis formation.
Gorelik et al., Pittsburgh, United States. In Clin Dev Immunol, 2011
role in breast tumor cell proliferation, cell cycle regulation, and antiapoptotic signaling
Activation of indoleamine 2,3-dioxygenase in patients with scrub typhus and its role in growth restriction of Orientia tsutsugamushi.
Limwongse et al., Bangkok, Thailand. In Plos Negl Trop Dis, 2011
Activation of IDO1 appeared to be a defensive mechanism downstream of IFN-gamma that limited intracellular expansion of Orientia tsutsugamushi via tryptophan depletion.
Highlights of 10 years of immunology in Nature Reviews Immunology.
O'Garra et al., New Haven, United States. In Nat Rev Immunol, 2011
Highlights include our improved understanding of Toll-like receptor signalling, and of immune regulation mediated by regulatory T cells, indoleamine 2,3-dioxygenase, myeloid-derived suppressor cells and interleukin-10.
Imatinib potentiates antitumor T cell responses in gastrointestinal stromal tumor through the inhibition of Ido.
DeMatteo et al., New York City, United States. In Nat Med, 2011
Imatinib therapy activated CD8(+) T cells and induced regulatory T cell (T(reg) cell) apoptosis within the tumor by reducing tumor-cell expression of the immunosuppressive enzyme indoleamine 2,3-dioxygenase (Ido).
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