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5mg |
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10mg |
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25mg |
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50mg |
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100mg |
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250mg |
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500mg |
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MLN120B (MLN-120B) is a novel, potent, specific and ATP competitive IKKβ (IκB kinase beta subunit) inhibitor with anti-inflammatory activity. With an IC50 of 60 nM, it inhibits IKK. IkappaBalpha and p65 nuclear factor-kappaB phosphorylation are down-regulated, and MLN120B inhibits nuclear factor-kappaB activation both at rest and when tumor necrosis factor-alpha is present. In multiple myeloma cell lines, MLN120B causes a dose-dependent 25% to 90% growth inhibition and significantly increases the cytotoxicity caused by tumor necrosis factor-alpha in MM.1S cells. In both RPMI 8226 and IL-6-dependent INA6 cell lines, MLN120B increases the growth inhibition caused by doxorubicin and melphalan. The growth-inhibitory effect of MLN120B is not reversed by IL-6 or IGF-1. Without affecting viability, MLN120B reduces BMSCs' ability to secrete IL-6 on a constant basis by 70% to 80%. It's significant to note that MLN120B effectively prevents IL-6 secretion from BMSCs and stimulation of MM.1S, U266, and INA6 cell growth that is brought on by multiple myeloma cell adhesion to BMSCs. The protective effect of BMSCs against conventional (dexamethasone) therapy is overridden by MLN120B. The activation of nuclear factor kappaB (NF-kappaB) by inflammatory cytokines depends on IKKβ. Major cell types that contribute to the pathophysiological process of rheumatoid arthritis (RA) function in a way that depends on NF-kappaB.
Targets |
IKKβ (IC50 = 60 nM)
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ln Vitro |
The anti-inflammatory drug MLN120B inhibits IKK2 and functions as an NF-kB pathway blocker. It also has an inhibitory effect on LPS-induced NF-kB activation. IKK2 inhibition most effectively affects the transcriptional activity of the NF-kB2 promoter, as evidenced by the IC50 values of NF-kB2-luc2, IL8-luc2, and TNF-AIP3-luc2 reporter transfected cells of 1.4, 14.8 and 27.3 M, respectively.
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ln Vivo |
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Enzyme Assay |
MLN120B is a novel, potent, specific and ATP competitive IKKβ (IκB kinase beta subunit) inhibitor with an IC50 of 60 nM.
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Cell Assay |
RAW267.4 cells should be transfected momentarily with NF-kB reporters, and LPS should be used to cause inflammation. These substances' impact on LPS-induced luciferase expression was evaluated.
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Animal Protocol |
NF-kB2-luc2 transfected mice
300 mg/kg p.o. |
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References |
Molecular Formula |
C19H15CLN4O2
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Molecular Weight |
366.81
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Exact Mass |
366.810
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Elemental Analysis |
C, 62.22; H, 4.12; Cl, 9.66; N, 15.27; O, 8.72
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CAS # |
783348-36-7
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Related CAS # |
1782573-78-7 (2HCl);783348-36-7;1350272-92-2 (HCl);
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Appearance |
Solid powder
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SMILES |
CC1=C(C=CC=N1)C(=O)NC2=C3C(=CC(=C2OC)Cl)C4=C(N3)C=NC=C4
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InChi Key |
ZNOLRTPMNMPLHY-UHFFFAOYSA-N
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InChi Code |
InChI=1S/C19H15ClN4O2/c1-10-11(4-3-6-22-10)19(25)24-17-16-13(8-14(20)18(17)26-2)12-5-7-21-9-15(12)23-16/h3-9,23H,1-2H3,(H,24,25)
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Chemical Name |
N-(6-chloro-7-methoxy-9H-pyrido[3,4-b]indol-8-yl)-2-methylpyridine-3-carboxamide
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Synonyms |
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HS Tariff Code |
2934.99.03.00
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.82 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly. Solubility in Formulation 2: ≥ 2.08 mg/mL (5.67 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. View More
Solubility in Formulation 3: 2.08 mg/mL (5.67 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication. |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 2.7262 mL | 13.6310 mL | 27.2621 mL | |
5 mM | 0.5452 mL | 2.7262 mL | 5.4524 mL | |
10 mM | 0.2726 mL | 1.3631 mL | 2.7262 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
MLN120B inhibits IκBα phosphorylation and NF-κB activation in multiple myeloma cells.Clin Cancer Res.2006 Oct 1;12(19):5887-94. td> |
MLN120B inhibits proliferation of multiple myeloma cell lines.Clin Cancer Res.2006 Oct 1;12(19):5887-94. td> |
MLN120B enhances cytotoxicity of conventional [dexamethasone (Dex), melphalan (Mel), doxorubicin (Dox)] agents.Clin Cancer Res.2006 Oct 1;12(19):5887-94. td> |