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VX-745

Cat. No. M3294
VX-745 Structure
Size Price Availability Quantity
10mg USD 120 In stock
50mg USD 550 In stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

VX-745 is a lead anti-inflammatory candidate, p38 MAPK inhibitor (IC50=10 nM) for the treatment of Rheumatoid arthritis (RA). p38 MAPK is a specific enzyme that regulates the production of IL-1,  IL-2, IL-6, TNFα, chemokines and nitric oxide (NO), as part of acute and chronic inflammatory responses. In vitro, VX-745 was selective for p38 MAPK compared to a large panel of kinases (IC50≥20µM). VX-745 selectively inhibited p38α MAPK (IC50=10 nM), p38β MAPK (IC50 =220 nM) [368149], but not p38γ MAPK (IC50≥20 µM). In addition, cell data for VX-745 provided IC50 values of 56 and 52 nM for IL-1β and TNFα, respectively, and VX-745 blocked IL-6 and IL-8 production induced by IL-1 and TNFα. In a human whole blood assay, IC50 values were 152 and 177 nM for IL-1β and TNFα inhibition, respectively.

Protocol
Cell Experiment
Cell lines Human bone marrow stromal cells (BMSCs) and multiple myeloma (MM) cells
Preparation method Incubating BMSCs (5 × 104 cells/well) or MM cells (3 × 104 cells/well) in 96-well culture plates in the presence or absence of VX-745 for 48 hours at 37 °C. Measuring DNA synthesis by [3H]-thymidine ([3H]TdR) uptake. Cells are pulsed with [3H]TdR (0.5 μCi/well [.0185 MBq]) during the last 8 hours of 48-hour cultures. Measuring 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) dye absorbance to assess growth inhibition of both MM cells and BMSCs by VX-745 .
Concentrations 60 nM - 20 μM, dissolved in DMSO.
Incubation time 48 hours
Animal Experiment
Animal models Type II collagen-induced arthritis (CIA) mice model (DBA/1J)
Formulation Dissolved in 100% polyethylene glycol
Dosages 2.5, 5, and 10 mg/kg
Administration Oral gavage twice daily
Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 436.26
Formula C19H9Cl2F2N3OS
CAS Number 209410-46-8
Purity >98%
Solubility DMSO 10 mg/mL
Storage at -20°C
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  Catalog
Abmole Inhibitor Catalog 2017




Keywords: VX-745 supplier, p38 MAPK, inhibitors

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