SU9516

Alias:
Cat No.:V1542 Purity: ≥98%
SU 9516 (SU-9516; SU9516), a 3-substituted indolinone, is a potent and selectiveCyclin-dependent kinases (CDKs) inhibitor with potential antineoplastic activity.
SU9516 Chemical Structure CAS No.: 377090-84-1
Product category: CDK
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

SU 9516 (SU-9516; SU9516), a 3-substituted indolinone, is a potent and selective Cyclin-dependent kinases (CDKs) inhibitor with potential antineoplastic activity. With respective IC50s of 22 nM, 40 nM, and 200 nM, it inhibits CDK2, CDK1, and CDK4. SU 9516 (5 μM) reduced pRb's phosphorylation in RKO cells by 52%, specifically in the cdk2-specific region. In SW480 cells, however, SU9516 (5 μM) significantly reduced the phosphorylation of pRb that is specific to either CDK2 or CDK4, by 64% and 49%, respectively. Moreover, G0-G1 or G2-M block and dose-dependent induction of apoptosis were the outcomes of SU 9516 (5 μM). Time-dependently, SU9516 (5 μM) prevented pRb from dissociating from E2F1 in human colon cancer cells HT-29, SW480, and RKO.

Biological Activity I Assay Protocols (From Reference)
Targets
CDK2 (IC50 = 22 nM); CDK1 (IC50 = 40 nM); CDK4 (IC50 = 200 nM); PDGFr (IC50 = 18000 nM)
ln Vitro

SU9516 exhibits marginal activity against PDGFr, EGFR, PKC, and p38, with IC50 values of >10, >10, 18, and >100 μM, respectively. In RKO cells, SU9516 (5 μM) inhibits the progression of the cell cycle and reduces the phosphorylation of pRB that is specific to cdk2. Additionally, SU9516 (5 μM) causes apoptosis in SW480 and RKO cells[1]. In HT-29 cells, SU9516 (5 μM) leads to increased pRb/E2F complex formation. E2F species are more prevalent in multiprotein complexes when SU9516 is present[2]. SU9516 (5 μM) causes a significant down-regulation of the antiapoptotic protein Mcl-1, which in turn causes cytochrome c release, Bax mitochondrial translocation, and apoptosis to occur quickly. Additionally, treatment with SU9516 causes a significant rise in the production of reactive oxygen species[3].

ln Vivo

Enzyme Assay
Polypropylene plates with 96 wells are used for kinase assays. A 40 μL volume containing 10 mM MgCl2, 1 mM DTT, 0.01% Triton X-100, 10% glycerol, and 2 μg of histone H1 at a final concentration of 10 μM [-33P]ATP (0.2 μCi/well) is used in each reaction. 20 μL of the enzyme (6 ng cdk2/well, or 1.6 nM at the end concentration) is added to start the reaction. The enzyme has been diluted 1:50–1:200 in the same buffer and has been left to proceed for one hour at room temperature. 25 μL of the reaction mixture is transferred to P30 phosphocellulose filter mat paper, and the reaction is stopped by adding 0.01 mL of 10% phosphoric acid. The filter mat is air dried, rinsed three times with 1.0% phosphoric acid, and then its radioactivity is measured using a liquid scintillation counter.
Cell Assay
In 96-well plates, RKO and SW480 cells are seeded at a density of 1×104 cells/well in duplicates (n = 6) and left to attach overnight. Following a 24-hour addition of SU9516 at concentrations ranging from 0.05 μM to 50.00 μM, the cells are twice washed with PBS and restocked with full media. Using a modified SRB cytotoxicity assay, the cells are fixed at 0, 4, and 7 days after the drug is removed and their protein levels are measured. After being fixed for one hour in 10% trichloroacetic acid, the cells are cleaned in distilled water and stained for thirty minutes in 0.4% SRB/acetic acid. After solubilizing in 10 mM Tris (pH 9), the cells are rinsed in 0.1% acetic acid and examined at 595 nm using a Bio-Rad 360 microplate reader. Every experiment is run through three times or more.
Animal Protocol


References

[1]. A novel cdk2-selective inhibitor, SU9516, induces apoptosis in colon carcinoma cells. Cancer Res. 2001 Aug 15;61(16):6170-7.

[2]. SU9516, a cyclin-dependent kinase 2 inhibitor, promotes accumulation of high molecular weight E2F complexes in human colon carcinoma cells. Biochem Pharmacol. 2002 Oct 1;64(7):1091-100.

[3]. The three-substituted indolinone cyclin-dependent kinase 2 inhibitor 3-[1-(3H-imidazol-4-yl)-meth-(Z)-ylidene]-5-methoxy-1,3-dihydro-indol-2-one (SU9516) kills human leukemia cells via down-regulation of Mcl-1 through a transcriptional mechanism. Mol Pharmacol. 2006 Aug;70(2):645-55.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C13H11N3O2
Molecular Weight
241.25
Exact Mass
241.09
Elemental Analysis
C, 64.72; H, 4.60; N, 17.42; O, 13.26
CAS #
377090-84-1
Related CAS #
377090-84-1
Appearance
Solid powder
SMILES
C1=CC=C(C=C1)CC(C2=CC=CC=C2)C(=O)NC3=CN=C(C=C3)C(=O)NC4=CC=CC=C4N
InChi Key
FUOLFAHJLGZFME-UHFFFAOYSA-N
InChi Code
InChI=1S/C27H24N4O2/c28-23-13-7-8-14-24(23)31-27(33)25-16-15-21(18-29-25)30-26(32)22(20-11-5-2-6-12-20)17-19-9-3-1-4-10-19/h1-16,18,22H,17,28H2,(H,30,32)(H,31,33)
Chemical Name
N-(2-aminophenyl)-5-(2,3-diphenylpropanoylamino)pyridine-2-carboxamide
Synonyms

SU-9516; SU 9516; SU9516

HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ~48 mg/mL (~199.0 mM)
Water: <1 mg/mL
Ethanol: ~12 mg/mL(~49.7 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 3.25 mg/mL (13.47 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 32.5 mg/mL clear DMSO stock solution to 400 μL of PEG300 and mix evenly; then add 50 μL of Tween-80 to the above solution and mix evenly; then add 450 μL of 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.

Solubility in Formulation 2: ≥ 3.25 mg/mL (13.47 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 32.5 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 4.1451 mL 20.7254 mL 41.4508 mL
5 mM 0.8290 mL 4.1451 mL 8.2902 mL
10 mM 0.4145 mL 2.0725 mL 4.1451 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.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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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.

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