| Name | Indoximod |
| Description | Indoximod (NLG-8189) is a methylated tryptophan with immune checkpoint inhibitory activity. Indoximod inhibits the enzyme indoleamine 2, 3-dioxygenase (IDO), which degrades the essential amino acid tryptophan, and may increase or maintain tryptophan levels important to T cell function. Tryptophan depletion is associated with immunosuppression involving T cell arrest and anergy. |
| Kinase Assay | 1MT enantiomers are solubilized in DMSO containing 0.1N HCl and added at concentrations of 100, 50, and 0 μM to wells containing the reaction mixture with tryptophan (0-200 μM) followed by addition of IDO enzyme. Plates are sealed and incubated 1 hr in a humidified 37°C incubator, after which the reactions are terminated by addition of 12.5 μl 30% TCA per well. Plates are then resealed in plastic wrap, incubated 30 min at 50°C to hydrolyze the reaction product N-formylkynurenine to kynurenine, and centrifuged. Supernatants are transferred to a flat-bottom 96-well plate, mixed with 100 μl Ehrlich reagent and incubated 10 min at room temperature. Absorbance at 490 nm is read[1]. |
| In vitro | Indoximod significantly reverses the suppression of T cells created by IDO-expressing dendritic cells, using both human monocyte-derived dendritic cells and murine dendritic cells isolated directly from tumor-draining lymph nodes. [1] Indoximod activates a Trp sufficiency signal that stimulates mTOR, and relieves IDO-induced Trp deprivation as well as an autophagic response. [2] |
| In vivo | In mouse models of transplantable melanoma and transplantable and autochthonous breast cancer, Indoximod (400 mg/kg p.o.) enhances antitumor immunity in the setting of combined chemo-immunotherapy regimens. [1] |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
| Solubility Information | DMSO : Slightly soluble
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| Keywords | mTORC1 | inhibit | NLG 8189 | NLG8189 | tryptophan | Inhibitor | Indoleamine 2,3-Dioxygenase (IDO) | Trp mimetic | cancer | Indoximod | immunotherapeutic vaccines |
| Inhibitors Related | Palmatine chloride | GNF-PF-3777 | Coptisine chloride | Necrostatin-1 | IDO-IN-7 | Palmatine | IDO inhibitor 1 | Epacadostat | IDO5L | IDO-IN-12 |
| Related Compound Libraries | Bioactive Compound Library | Autophagy Compound Library | Anti-Cancer Clinical Compound Library | Drug Repurposing Compound Library | Inhibitor Library | Clinical Compound Library | Bioactive Compounds Library Max | Human Metabolite Library | Anti-Cancer Drug Library | Anti-Cancer Active Compound Library |
United States
