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Vadimezan

Vadimezan
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Purity:99.8%
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Vadimezan

Catalog No. T6273Cas No. 117570-53-3
Vadimezan (DMXAA) is a vascular disrupting agent, a murine STING agonist, and an inducer of cytokines such as type I IFN. Vadimezan has antitumor activity and induces a rapid cessation of blood flow in tumors without affecting blood flow in normal tissues.
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Pack SizePriceAvailabilityQuantity
2 mg$48In Stock
5 mg$81In Stock
10 mg$110In Stock
25 mg$239In Stock
50 mg$432In Stock
100 mg$475In Stock
1 mL x 10 mM (in DMSO)$90In Stock
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Product Introduction

Bioactivity
Description
Vadimezan (DMXAA) is a vascular disrupting agent, a murine STING agonist, and an inducer of cytokines such as type I IFN. Vadimezan has antitumor activity and induces a rapid cessation of blood flow in tumors without affecting blood flow in normal tissues.
In vitro
METHODS: DLBCL cells LY1 and LY3 were treated with Vadimezan (0-300 µM) for 24 h. Cell viability was measured by CCK-8 assay.
RESULTS: Vadimezan treatment decreased the viability of DLBCL cells in a dose-dependent manner, with IC50s of 177 μM and 165 μM for LY1 and LY3, respectively. [1]
METHODS: Human lung cancer cells A549 were treated with Vadimezan (0.1-1 µM) for 24 h. The expression levels of target proteins were detected by Western Blot.
RESULTS: Vadimezan induced a significant increase in the cytoplasmic level of cytochrome c and the activation of caspase 3, which ultimately led to apoptosis and death of A549 cells. [2]
In vivo
METHODS: To assay antitumor activity in vivo, Vadimezan (20 mg/kg) and BMS1166 (250 µg/mL) were injected intraperitoneally into Balb/c nude mice bearing DLBCL tumor LY1 once daily for eight days.
RESULTS: Vadimezan and BMS1166 acted at effective concentrations. The combination treatment significantly inhibited the growth of GCB-like DLBCL cells compared to monotherapy. [1]
METHODS: To assay antitumor activity in vivo, Vadimezan (25,5,5,25 mg/kg; 25,0,0,25 mg/kg; 25,25,25,25 mg/kg) was administered intraperitoneally every three days to C57BL/6J mice bearing mouse mesothelioma AE17 for four doses.
RESULTS: In group 1, 2/4 mice were cured, of which 2/4 showed long-term survival, but toxicity problems were observed. A better, less toxic response was observed in Group 2, with all four mice cured and showing long-term survival. In group 3, only 1 mouse was cured, but none showed long-term survival, possibly due to associated toxicity issues. [3]
Kinase Assay
DT-diaphorase activity and kinetic analysis of enzyme inhibition : Purified DT-diaphorase enzyme activity is assayed by measuring the reduction of cytochrome c at 550 nm on a Beckman DU 650 spectrophotometer. Each assay contains cytochrome c (70 μM), NADH (variable concentrations), purified DT-diaphorase (0.032 μg), and menadione (variable concentrations) in a final volume of 1 mL Tris–HCl buffer (50 mM, pH 7.4) containing 0.14% BSA. The reaction is started by the addition of NADH. Rates of reduction are calculated over the initial part of the reaction curve (30 seconds), and results are expressed in terms of μmol cytochrome c reduced/min/mg protein using a molar extinction coefficient of 21.1 mM?1 cm?1 for reduced cytochrome c. Enzyme assays are carried out at room temperature and all reactions are performed in triplicate. Inhibition of purified DT-diaphorase activity is performed by the inclusion of DMXAA (at various concentrations) in the reaction, and inhibition characteristics are determined by varying the concentration of NADH (constant menadione) or menadione (constant NADH) at several concentrations of inhibitor. Ki values are obtained by plotting 1/V against. The activity of DT-diaphorase in DLD-1 cells is determined by measuring the dicumarol-sensitive reduction of DCPIP at 600 nm. Briefly, DLD-1 cells in mid-exponential growth are harvested by scraping into ice-cold buffer (Tris–HCl, 25 mM, pH 7.4 and 250 mM sucrose) and sonicated on ice. Enzyme assay conditions are 2 mM NADH, 40 μM DCPIP, 20 μL of dicumarol (when required) in a final volume of 1 mL Tris–HCl (25 mM, pH 7.4) containing BSA (0.7 mg/mL). Results are expressed as the dicumarol-sensitive reduction of DCPIP using a molar extinction coefficient of 21 mM?1 cm?1. Protein levels are determined using the Bradford assay
Cell Research
DLD-1 human colon carcinoma and H460 human non-small cell lung carcinoma cells are routinely maintained as monolayer cultures in RPMI 1640 culture medium supplemented with foetal calf serum (10%), sodium pyruvate (2 mM), penicillin/streptomycin (50 IU mL?1/50 μg mL-1) and l-glutamine (2 mM). Chemosensitivity is assessed using the MTT assay and all assays are performed under aerobic conditions. Briefly, cells are plated into each well of a 96-well culture plate and incubated overnight in an atmosphere containing 5% CO2. Culture medium is completely removed from each well and replaced with medium containing a range of drug concentrations. In the case of menadione alone, the duration of drug exposure is 1 hour, after which the cells are washed twice with Hanks' balanced salt solution prior to the addition of 200 μL fresh RPMI 1640 medium to each well of the plate. In the case of DMXAA alone, the duration of drug exposure is 3 hours. Following a four-day incubation, cell survival is determined using the MTT assay. For combinations of DMXAA with menadione, cells are initially set up and a non-toxic (>95% cell survival) concentration of DMXAA is selected. Cells are then initially exposed to DMXAA (2 mM) for a period of 2 hours, following which the medium is removed and replaced with medium containing the inhibitor (DMXAA at a constant concentration of 2 mM) and menadione (at a range of drug concentrations). Following a further 7-hour incubation, cells are washed twice with Hanks' balanced salt solution prior to the addition of growth medium.(Only for Reference)
AliasDMXAA, 5,6-Dimethylxanthenone-4-acetic Acid, NSC 640488, ASA-404
Chemical Properties
Molecular Weight282.29
FormulaC17H14O4
Cas No.117570-53-3
Storage & Solubility Information
Storage Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Solubility Information
DMSO: 7.5 mg/mL (26.57 mM)
Solution Preparation Table
DMSO
1mg5mg10mg50mg
1 mM3.5425 mL17.7123 mL35.4246 mL177.1228 mL
5 mM0.7085 mL3.5425 mL7.0849 mL35.4246 mL
10 mM0.3542 mL1.7712 mL3.5425 mL17.7123 mL
20 mM0.1771 mL0.8856 mL1.7712 mL8.8561 mL

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