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Potent and selective inhibitor of tryptophan 2,3-dioxygenase (TDO) (Ki = 51 nM). Exhibits no activity against indoleamine 2,3-dioxygenase, monoamine oxidase A and B, 5-HT uptake or 5-HT1A, 1D, 2A and 2C receptors. Produces large increases in brain tryptophan and serotonin in vitro and in vivo in the rat.
|Storage||Store at +4°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 238.26. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||4.2 mL||20.99 mL||41.97 mL|
|5 mM||0.84 mL||4.2 mL||8.39 mL|
|10 mM||0.42 mL||2.1 mL||4.2 mL|
|50 mM||0.08 mL||0.42 mL||0.84 mL|
References are publications that support the biological activity of the product.
Salter et al (1995) The effects of a novel and selective inhibitor of tryptophan 2,3-dioxygenase on tryptophan and serotonin metabolism in the rat. Biochem.Pharmacol. 17 1435 PMID: 7539265
Salter et al (1995) The effects of an inhibitor of tryptophan 2,3-dioxygenase and a combined inhibitor of tryptophan 2,3-dioxygenase and 5-HT reuptake in the rat. Neuropharmacology 34 217 PMID: 7617147
Opitz et al (2011) An endogenous tumour-promoting ligand of the human aryl hydrocarbon receptor. Nature 478 197 PMID: 21976023
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Keywords: 680C91, 680C91 supplier, tryptophan, 2,3-dioxygenase, inhibits, TDO, inhibitors, catabolism, Tryptophan, 2,3, dioxygenase, Immune, Checkpoints, 4392, Tocris Bioscience
3 Citations for 680C91
Citations are publications that use Tocris products. Selected citations for 680C91 include:
D'Amato et al (2015) A TDO2-AhR Signaling Axis Facilitates Anoikis Resistance and Metastasis in Triple-Negative Breast Cancer. Cancer Res 75 4651 PMID: 26363006
Breda et al (2016) Tryptophan-2,3-dioxygenase (TDO) inhibition ameliorates neurodegeneration by modulation of kynurenine pathway metabolites. Proc.Natl.Acad.Sci.U.S.A. 113 5435 PMID: 27114543
Bostian et al (2016) Kynurenine Signaling Increases DNA Polymerase Kappa Expression and Promotes Genomic Instability in Glioblastoma Cells. Chem Res Toxicol 29 101 PMID: 26651356
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Literature in this Area
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Alzheimer's disease (AD) is a degenerative brain disease and the most common cause of dementia, affecting approximately 47 million people worldwide. Updated in 2015, this poster summarizes the structural and functional changes observed in the progression of this neurodegenerative disease, as well as classic AD drug targets.
Cancer Metabolism Poster
Adapted from the 2015 Cancer Product Guide, Edition 3, this poster summarizes the main targets for cancer metabolism researchers. Genetic changes and epigenetic modifications in cancer cells alter the regulation of cellular metabolic pathways. These distinct metabolic circuits could provide viable cancer therapeutic targets.