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LGX818 (Synonyms: LGX818)

Catalog No.GC16576

LGX818 (LGX818) is a highly potent BRAF inhibitor with selective anti-proliferative and apoptotic activity in cells expressing BRAFV600E (EC50=4 nM).

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LGX818 Chemical Structure

Cas No.: 1269440-17-6

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1mg
$32.00
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5mg
$81.00
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Sample solution is provided at 25 µL, 10mM.

Product Documents

Quality Control & SDS

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Protocol

Cell experiment [1]:

Cell lines

Human melanoma A375 (BRAFV600E) cells

Preparation method

The solubility of this compound in DMSO is > 10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below - 20 °C for several months.

Reacting condition

3 ~ 900 nM

Applications

In human melanoma A375 (BRAFV600E) cells, LGX818 suppressed phospho-ERK (EC50 = 3 nM), thus potently inhibiting cell proliferation (EC50 = 4 nM). Meanwhile, LGX818 did not show any significant inhibition against a panel of 100 kinases (IC50 > 900 nM) as well as proliferation of > 400 cell lines expressing wild-type BRAF. In addition, biochemical assays showed that the dissociation half-life of LGX818 was >24 hrs. Thus, the inhibition effect of LGX818 remained following drug wash-out.

Animal experiment [1]:

Animal models

BRAF mutant or wild-type human tumor xenograft models

Dosage form

1 ~ 300 mg/kg; p.o.

Applications

At an oral dose as low as 6 mg/kg, LGX818 potently (75%) and continuously (> 24 hrs) decreased phospho-MEK in human melanoma xenograft models (BRAFV600E). In nude mice and rats bearing multiple BRAF mutant human tumors, LGX818 induced tumor regression at the dose as low as 1 mg/kg. Moreover, for BRAF wild-type tumors, LGX818 did not show any activity at the dose up to 300 mg/kg (b.i.d.), with good tolerability and linear increase in exposure.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

[1]. Stuart D D, Li N, Poon D J, et al. Preclinical profile of LGX818: A potent and selective RAF kinase inhibitor. Cancer Research, 2012, 72(8 Supplement): 3790.

Background

LGX818 is a potent and selective inhibitor of RAF kinase with EC50 value of 3nM in A375 cells [1].

The V600E mutation of B-Raf in the kinase domain results in constitutive activation of B-Raf and promotes cancer development. LGX818 is a RAF kinase inhibitor targeting V600E mutant B-Raf. It has little effect against wild-type BRAF. LGX818 has selective anti-proliferative and apoptotic activity ion in cells expressing BRAFV600E. It shows no significant activity against a panel of 100 kinases and no suppression of cell growth with more than 400 cell lines expressing BRAFV600E. In the A375 human melanoma cell line, LGX818 inhibits the phospho-ERK with EC50 value of 3nM and causes subsequent cell proliferation inhibition with EC50 value of 4nM. In human melanoma xenograft models, oral administration of LGX818 shows strong decrease in phospho-MEK and induces tumor regression [1, 2].

References:
[1] Stuart D D, Li N, Poon D J, et al. Preclinical profile of LGX818: A potent and selective RAF kinase inhibitor. Cancer Research, 2012, 72(8 Supplement): 3790.
[2] Huang T, Karsy M, Zhuge J, et al. B-Raf and the inhibitors: from bench to bedside. J Hematol Oncol, 2013, 6(1): 30.

Chemical Properties

Cas No. 1269440-17-6 SDF
Synonyms LGX818
Chemical Name methyl N-[(2S)-1-[[4-[3-[5-chloro-2-fluoro-3-(methanesulfonamido)phenyl]-1-propan-2-ylpyrazol-4-yl]pyrimidin-2-yl]amino]propan-2-yl]carbamate
Canonical SMILES CC(C)N1C=C(C(=N1)C2=CC(=CC(=C2F)NS(=O)(=O)C)Cl)C3=NC(=NC=C3)NCC(C)NC(=O)OC
Formula C22H27ClFN7O4S M.Wt 540.01
Solubility DMF: 25 mg/ml,DMF:PBS(pH 7.2)(1:1): 0.5 mg/ml,DMSO: 20 mg/ml,Ethanol: 15 mg/ml Storage Store at -20°C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table

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1 mg 5 mg 10 mg
1 mM 1.8518 mL 9.2591 mL 18.5182 mL
5 mM 0.3704 mL 1.8518 mL 3.7036 mL
10 mM 0.1852 mL 0.9259 mL 1.8518 mL
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

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Average Rating: 5 ★★★★★ (Based on Reviews and 2 reference(s) in Google Scholar.)

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