Neflamapimod (VX-745)

For research use only.

Catalog No.S1458

10 publications

Neflamapimod (VX-745) Chemical Structure

CAS No. 209410-46-8

Neflamapimod (VX-745) is a potent and selective inhibitor of p38α with IC50 of 10 nM, 22-fold greater selectivity versus p38β and no inhibition to p38γ.

Size Price Stock Quantity  
USD 480 In stock
USD 1080 In stock
USD 1990 In stock
Bulk Discount
Bulk Inquiry

Free Overnight Delivery on orders over $ 500
Next day delivery by 10:00 a.m. Order now.

Selleck's Neflamapimod (VX-745) has been cited by 10 publications

1 Customer Review

  • A) TRAP staining of BMMs cultured with M-CSF and RANKL for 7 d in the presence of SB203580 (50 nM) or VX-745 (50 nM). B) Bone slice assay indicated the effects of compounds on bone resorption.

    FASEB J, 2018, doi:10.1096/fj.201801977R. Neflamapimod (VX-745) purchased from Selleck.

Purity & Quality Control

Choose Selective p38 MAPK Inhibitors

Biological Activity

Description Neflamapimod (VX-745) is a potent and selective inhibitor of p38α with IC50 of 10 nM, 22-fold greater selectivity versus p38β and no inhibition to p38γ.
Features A potent and selective inhibitor to p38α and p38β MAPK.
Targets
p38α [1] p38β [1]
10 nM 220 nM
In vitro

VX-745 selectively inhibits p38α and p38β MAPK with IC50 of 10 nM and 220 nM, respectively, but not p38γ MAPK and a large panel of other kinases, with IC50 larger than 20 µM. In a human peripheral blood mononuclear cell (PBMC) assay, VX-745 provides IC50 of 56 and 52 nM for IL-1β and TNFα, respectively. VX-745 blocks IL-6 and IL-8 production induced by IL-1 and TNFα, and COX-2 synthesis mediated by LPS and IL-1β. [1-3] VX-745 (60 nM-20 µM) inhibits IL-6 and VEGF secretion in bone marrow stromal cells (BMSCs), without affecting their viability. VX-745 also inhibits TNF-α-induced IL-6 secretion in BMSCs. VX-745 inhibits both multiple myeloma (MM) cell proliferation and IL-6 secretion in BMSCs triggered by adherence of MM cells to BMSCs, suggesting that VX-745 can inhibit paracrine multiple myeloma (MM) cell growth in the BM milieu and overcome cell adhesion-related drug resistance. [4]

In vivo VX-745 is effective against adjuvant-induced arthritis (AA) in the rat with ED50 of 5 mg/kg. Histological scores for VX-745 in AA rats are 93% inhibition of bone resorption and 56% inhibition of inflammation. In the classical cartilage-induced arthritis model, VX-745 exhibits a dose-responsive decrease in severity score. [1-3] In a type II collagen-induced arthritis (CIA) mice model, VX-745 (2.5, 5, and 10 mg/kg) has 27%, 31%, and 44% improvement in the inflammatory scores, respectively, when compared to vehicle-treated mice. In addition, histological scores show a 32-39% protection of bone and cartilage erosion by VX-745. [5]

Protocol

Kinase Assay:[5]
- Collapse

Spectrophotometric coupled-enzyme assay:

The IC50 for the inhibition of p38α and p38β homologs are obtained by a spectrophotometric coupled-enzyme assay. A fixed concentration of enzyme (15 nM of p38α or p38β) is incubated with VX-745 in DMSO for 10 min. at 30 °C in 0.1 M HEPES buffer, pH 7.5, containing 10% glycerol, 10 mM MgCl2, 2.5 mM phosphoenolpyruvate, 200 µM NADH, 150 µg/mL pyruvate kinase, 50 µg/mL lactate dehydrogenase, and 200 µM EGF receptor peptide (KRELVEPLTPSGEAPNQALLR). The reaction is initiated with 100 µM and 70 µM ATP for p38α and p38β assays, respectively. The decrease of absorbance at 340 nm is monitored to follow the rate of the reaction. IC50 is evaluated from the rate data as a function of the inhibitor concentration.
Cell Research:[4]
- Collapse
  • Cell lines: Human bone marrow stromal cells (BMSCs) and multiple myeloma (MM) cells
  • Concentrations: 60 nM - 20 μM, dissolved in DMSO.
  • Incubation Time: 48 hours
  • Method: BMSCs (5 × 104 cells/well) or MM cells (3 × 104 cells/well) are incubated in 96-well culture plates in the presence or absence of VX-745 for 48 hours at 37 °C. DNA synthesis is measured 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. Growth inhibition of both MM cells and BMSCs by VX-745 is also assessed by measuring 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) dye absorbance.
    (Only for Reference)
Animal Research:[5]
- Collapse
  • Animal Models: Type II collagen-induced arthritis (CIA) mice model (DBA/1J)
  • Dosages: 2.5, 5, and 10 mg/kg
  • Administration: Oral gavage twice daily
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 15 mg/mL (34.38 mM)
Water Insoluble
Ethanol Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
30% PEG400+0.5% Tween80+5% propylene glycol
For best results, use promptly after mixing. 		30 mg/mL

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 436.26
Formula

C19H9Cl2F2N3OS
CAS No. 209410-46-8
Storage powder
in solvent
Synonyms N/A
Smiles C1=CC(=C(C(=C1)Cl)C2=C3C=CC(=NN3C=NC2=O)SC4=C(C=C(C=C4)F)F)Cl

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Dosage mg/kg Average weight of animals g Dosing volume per animal ul Number of animals
Step 2: Enter the in vivo formulation ()
% DMSO % % Tween 80 % ddH2O
CalculateReset

Bio Calculators

Molarity Calculator

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)

  • Mass
    Concentration
    Volume
    Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).

Dilution Calculator

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

  • C1
    V1
    C2
    V2

* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
Molecular Weight Calculator

Molecular Weight Calculator

Enter the chemical formula of a compound to calculate its molar mass and elemental composition:

Total Molecular Weight: g/mol

Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

  • * Indicates a Required Field
selleck catalog

p38 MAPK Signaling Pathway Map

p38 MAPK Inhibitors with Unique Features

  • Pan p38 MAPK Inhibitor

    SB202190 (FHPI) : Pan-p38α/β inhibitor, IC50=50 nM/100 nM.

  • Most Potent p38 MAPK Inhibitor

    Skepinone-L New : p38α-MAPK, IC50=5 nM.

  • p38 MAPK Inhibitor in Clinical Trial

    PH-797804 : Phase II for Chronic Obstructive Pulmonary Disease (COPD).

  • Newest p38 MAPK Inhibitor

    Skepinone-L New : Selective p38α-MAPK inhibitor with IC50 of 5 nM.

Related p38 MAPK Products

  • Pexmetinib (ARRY-614) New

    Pexmetinib (ARRY-614) is a potent, orally bioavailable, dual p38 MAPK/Tie-2 inhibitor with IC50 of 4 nM/18 nM in a HEK-293 cell line. Phase 1.

  • SB239063 New

    SB239063 is a potent and selective p38 MAPKα/β inhibitor with IC50 of 44 nM, showing no activity against the γ- and δ-kinase isoforms.

  • Ravoxertinib (GDC-0994) New

    Ravoxertinib (GDC-0994) is a potent, orally available and highly selective ERK1/2 inhibitor with IC50 of 1.1 nM and 0.3 nM, respectively. Phase 1.

  • SB203580

    SB203580 (RWJ 64809, PB 203580) is a p38 MAPK inhibitor with IC50 of 0.3-0.5 μM in THP-1 cells, 10-fold less sensitive to SAPK3(106T) and SAPK4(106T) and blocks PKB phosphorylation with IC50 of 3-5 μM. SB203580 induces mitophagy and autophagy.

    Features:First reported p38 inhibitor.

  • Doramapimod (BIRB 796)

    Doramapimod (BIRB 796) is a pan-p38 MAPK inhibitor with IC50 of 38 nM, 65 nM, 200 nM and 520 nM for p38α/β/γ/δ in cell-free assays, and binds p38α with Kd of 0.1 nM in THP-1 cells, 330-fold greater selectivity versus JNK2, weak inhibition for c-RAF, Fyn and Lck, insignificant inhibition of ERK-1, SYK, IKK2.

    Features:The first p38 MAPK inhibitor to be tested in a phase III clinical trial.

  • SB202190 (FHPI)

    SB202190 (FHPI) is a potent p38 MAPK inhibitor targeting p38α/β with IC50 of 50 nM/100 nM in cell-free assays, sometimes used instead of SB 203580 to investigate potential roles for SAPK2a/p38 in vivo. SB202190 inhibits endothelial cell apoptosis via induction of autophagy and heme oxygenase-1. SB202190 significantly suppresses Erastin‐dependent ferroptosis.

  • Ralimetinib dimesylate

    Ralimetinib (LY2228820) dimesylate is a novel and potent inhibitor of p38 MAPK with IC50 of 7 nM in a cell-free assay, does not alter p38 MAPK activation. Phase 1/2.

  • Losmapimod (GW856553X)

    Losmapimod (GW856553X, GW856553, GSK-AHAB) is a selective, potent, and orally active p38 MAPK inhibitor with pKi of 8.1 and 7.6 for p38α and p38β, respectively. P38 MAPKs are involved in cell differentiation, apoptosis and autophagy. Phase 3.

  • PH-797804

    PH-797804 is a novel pyridinone inhibitor of p38α with IC50 of 26 nM in a cell-free assay; 4-fold more selective versus p38β and does not inhibit JNK2. Phase 2.

  • VX-702

    VX-702 is a highly selective inhibitor of p38α MAPK, 14-fold higher potency against the p38α versus p38β. Phase 2.

    Features:Highly selective, orally active inhibitor of p38 MAPK.

Tags: buy Neflamapimod (VX-745) | Neflamapimod (VX-745) supplier | purchase Neflamapimod (VX-745) | Neflamapimod (VX-745) cost | Neflamapimod (VX-745) manufacturer | order Neflamapimod (VX-745) | Neflamapimod (VX-745) distributor
×
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID