LEE011 succinate

CDK inhibitor CAS# 1374639-75-4

LEE011 succinate

2D Structure

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LEE011 succinate

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Chemical Properties of LEE011 succinate

Cas No. 1374639-75-4 SDF Download SDF
PubChem ID 57334219 Appearance Powder
Formula C27H36N8O5 M.Wt 552.63
Type of Compound N/A Storage Desiccate at -20°C
Synonyms Ribociclib succinate
Solubility DMSO : 41.67 mg/mL (75.40 mM; Need ultrasonic)
Chemical Name butanedioic acid;7-cyclopentyl-N,N-dimethyl-2-[(5-piperazin-1-ylpyridin-2-yl)amino]pyrrolo[2,3-d]pyrimidine-6-carboxamide
SMILES CN(C)C(=O)C1=CC2=CN=C(N=C2N1C3CCCC3)NC4=NC=C(C=C4)N5CCNCC5.C(CC(=O)O)C(=O)O
Standard InChIKey NHANOMFABJQAAH-UHFFFAOYSA-N
Standard InChI InChI=1S/C23H30N8O.C4H6O4/c1-29(2)22(32)19-13-16-14-26-23(28-21(16)31(19)17-5-3-4-6-17)27-20-8-7-18(15-25-20)30-11-9-24-10-12-30;5-3(6)1-2-4(7)8/h7-8,13-15,17,24H,3-6,9-12H2,1-2H3,(H,25,26,27,28);1-2H2,(H,5,6)(H,7,8)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of LEE011 succinate

DescriptionLEE011 succinate is a highly specific CDK4/6 inhibitor with IC50 values of 10 nM and 39 nM, respectively, and is over 1,000-fold less potent against the cyclin B/CDK1 complex.In Vitro:Treating a panel of 17 neuroblastoma cell lines with LEE011 (Ribociclib) across a four-log dose range (10 to 10,000 nM). Treatment with LEE011 significantly inhibits substrate adherent growth relative to the control in 12 of the 17 neuroblastoma cell lines examined (mean IC50=306±68 nM, considering sensitive lines only, where sensitivity is defined as an IC50 of less than 1 μM. LEE011 treatment of two neuroblastoma cell lines (BE2C and IMR5) with demonstrated sensitivity to CDK4/6 inhibition results in a dose-dependent accumulation of cells in the G0/G1 phase of the cell cycle. This G0/G1 arrest becomes significant at LEE011 concentrations of 100 nM (p=0.007) and 250 nM (p=0.01), respectively[2].In Vivo:CB17 immunodeficient mice bearing BE2C, NB-1643 (MYCN amplified, sensitive in vitro), or EBC1 (non-amplified, resistant in vitro) xenografts are treated once daily for 21 days with LEE011 (200 mg/kg) or with a vehicle control. This dosing strategy is well tolerated, as no weight loss or other signs of toxicity are observed in any of the xenograft models. Tumor growth is significantly delayed throughout the 21 days of treatment in mice harboring the BE2C or 1643 xenografts (both, p<0.0001), although growth resumed post-treatment[2].

References:
[1]. VanArsdale T, et al. Molecular Pathways: Targeting the Cyclin D-CDK4/6 Axis for Cancer Treatment. Clin Cancer Res. 2015 Jul 1;21(13):2905-10. [2]. Rader J, et al. Dual CDK4/CDK6 Inhibition Induces Cell-Cycle Arrest and Senescence in Neuroblastoma. Clin Cancer Res. 2013 Nov 15;19(22):6173-82.

Protocol

Cell Assay [2]
Cells are grown for 24 hours in 35 mm plates, treated with 500 nM LEE011 for 6 days, and then fixed and stained overnight. Cells are then imaged for SA-β-gal using an Axio Observer D.1 phase contrast microscope. The percentage of SA-β-gal positive cells is determined by counting the number of positive cells present in three separate microscope frames, and then normalizing to the control. To assess apoptotic activity, cells are plated in triplicate in 96 well plates, treated with LEE011, and assayed for caspase 3/7 activation 16 hours after treatment with Caspase-Glo 3/7. Cells treated with SN-38 are used as a positive control[2].

Animal Administration [2]
Mice[2] The BE2C, NB-1643, or EBC1 cell line-derived xenografts are implanted subcutaneously into the right flank of CB17 SCID-/- mice. Animals bearing engrafted tumors of 200-600 mm3 are then randomized to oral treatment with 200 mg/kg LEE011 in 0.5 % methylcellulose (n=10) or vehicle (n=10) daily for a total of 21 days. Tumor burden is determined periodically throughout treatment according to the formula (π/6)×d2, where d represents the mean tumor diameter obtained by caliper measurement.

References:
[1]. VanArsdale T, et al. Molecular Pathways: Targeting the Cyclin D-CDK4/6 Axis for Cancer Treatment. Clin Cancer Res. 2015 Jul 1;21(13):2905-10. [2]. Rader J, et al. Dual CDK4/CDK6 Inhibition Induces Cell-Cycle Arrest and Senescence in Neuroblastoma. Clin Cancer Res. 2013 Nov 15;19(22):6173-82.

LEE011 succinate Dilution Calculator

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Preparing Stock Solutions of LEE011 succinate

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.8095 mL 9.0476 mL 18.0953 mL 36.1906 mL 45.2382 mL
5 mM 0.3619 mL 1.8095 mL 3.6191 mL 7.2381 mL 9.0476 mL
10 mM 0.181 mL 0.9048 mL 1.8095 mL 3.6191 mL 4.5238 mL
50 mM 0.0362 mL 0.181 mL 0.3619 mL 0.7238 mL 0.9048 mL
100 mM 0.0181 mL 0.0905 mL 0.181 mL 0.3619 mL 0.4524 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on LEE011 succinate

LEE011 succinate is an orally available cyclin-dependent kinase (CDK) inhibitor targeting cyclin D1/CDK4 and cyclin D3/CDK6 cell cycle pathway, with potential antineoplastic activity.

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Description

Ribociclib succinate (LEE011 succinate) is a highly specific CDK4/6 inhibitor with IC50 values of 10 nM and 39 nM, respectively, and is over 1,000-fold less potent against the cyclin B/CDK1 complex.

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