SNS-314 Mesylate

Catalog No.S1154

SNS-314 Mesylate Chemical Structure

Molecular Weight(MW): 527.04

SNS-314 Mesylate is a potent and selective inhibitor of Aurora A, Aurora B and Aurora C with IC50 of 9 nM, 31 nM, and 3 nM, respectively. It is less potent to Trk A/B, Flt4, Fms, Axl, c-Raf and DDR2. Phase 1.

Size Price Stock Quantity  
In DMSO USD 250 In stock
USD 120 In stock
USD 210 In stock
USD 670 In stock

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2 Customer Reviews

  • Nuclear morphology and cell cycle distribution (green for phases G2/M, and red for phase G1) of NMuMG-Fucci cells exposed to 1 uM SNS-314 for 96 h.

    Exp Cell Res 2012 318(4), 336-49. SNS-314 Mesylate purchased from Selleck.

    Western blot analysis of Histone H3 and Aurora. 0-10μM SNS-314 was added.

     

     

    Dr. Zhang of Tianjin Medical University. SNS-314 Mesylate purchased from Selleck.

Purity & Quality Control

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Notes:

2. For more details, such as half maximal inhibitory concentrations (IC50s) and working concentrations of each inhibitor, please click on the link of the inhibitor of interest.
3. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation.
4. Orange "√" refers to compounds which do inhibitory effects on the related isoform, but without specific value.

Biological Activity

Description SNS-314 Mesylate is a potent and selective inhibitor of Aurora A, Aurora B and Aurora C with IC50 of 9 nM, 31 nM, and 3 nM, respectively. It is less potent to Trk A/B, Flt4, Fms, Axl, c-Raf and DDR2. Phase 1.
Targets
Aurora C [1] Aurora A [1] Aurora B [1]
3 nM 9 nM 31 nM
In vitro

In HCT116 colorectal carcinoma cell line, with intact or depleted p53 protein levels, SNS-314 Mesylate shows enhanced efficacy when administered sequentially with other standard chemotherapeutic agents and the most profound synergies are identified for agents that activate the spindle assembly checkpoint, e.g., docetaxel and vincristine. [2] A recent study shows that SNS-314 Mesylate shows potent antiproliferative activity in HCT116 cells and inhibits soft agar colony formation. [3]

In vivo The sequential treatment with SNS-314 Mesylate followed by docetaxel 24 hours later produces a significant 72.5% tumor growth inhibition of HCT116 xenografts, while docetaxel and SNS-314 Mesylate as single agents produce no significant inhibition of HCT116 tumor growth. [2] In the HCT116 human colon cancer xenograft model, administration of 50 and 100 mg/kg SNS-314 Mesylate results a dose-dependent inhibition of histone H3 phosphorylation, indicating effective Aurora-B inhibition in vivo. In addition, HCT116 tumors from animals treated with SNS-314 Mesylate exhibits potent and sustained responses including reduction of phosphorylated histone H3 levels, increased caspase-3 and appearance of increased nuclear size. [3]

Protocol

Kinase Assay
+ Expand

Aurora-A Kinase Assay:

Humanized mouse Aurora A (amino acids 107-403) is expressed in E. coli as described previously. For IC50 assays, compounds are titrated three-fold in DMSO and diluted 12.5-fold into assay buffer (10 mM Tris HCl pH 7.2, 10 mM MgCl2, 0.05% NaN3, 0.01% Tween-20, and 0.1% BSA). Compounds are then diluted 4-fold into assay buffer containing Aurora A and FAM-PKAtide at final concentrations of 2 nM and 50 nM, respectively. The kinase reaction is initiated by adding ATP in assay buffer at a final concentration of 10 mM and incubated at 21 °C for 25 minutes. As a positive control, DMSO is added instead of compound and as a negative control assay buffer is added instead of Aurora A. Both control reactions are conducted in triplicate. To detect phosphorylated PKAtide, the kinase reaction is combined with Progressive Binding Solution (1:400 Progressive Binding Reagent, 1 × Buffer A, Molecular Devices) in a 1:3 ratio. The mixture is incubated for 30 minutes at 21 °C and the plate is scanned on an Analyst AD with excitation at 485 nm and emission at 530 nm. The percent relative enzymatic activity is calculated by normalizing the mP value for each well to the average positive control. Relative enzymatic activity values are plotted as a function of the logarithm of compound concentration and IC50 values are generated in GraphPad Prism software using a sigmoidal dose-response curve-fit. IC50's are calculated as the concentration of compound at which enzymatic activity i
Cell Research
+ Expand
  • Cell lines: HCT116 SCR and HCT116 p53 RNAi cells
  • Concentrations: ~125 nM
  • Incubation Time: 48 hours
  • Method: Viability is measured using the CellTiter-Blue cell viability assay. Cells are treated as described above, although with a 5-day incubation period. Cytotoxicity is determined by measuring intracellular ATP using the CellTiter-Glo Luminescence Cell Viability Assay. Cells are seeded in white 96-well tissue culture plates at a density of 1.5-2 × 103 cells/well, and a serial dilution of SNS-314 is dosed in combination with fixed concentrations of either docetaxel or vincristine for a total of 72 hours. Viability is determined as the ratio between the ATP in treated cells versus control cells. Apoptosis is measured using the caspase-Glo 3/7 system. Cells are plated in white 96-well plates as described above and treated first with SNS-314 for 24 hours, washed with 200 μL of 1× PBS, and fresh medium is added with the second agent for 24 hours.
    (Only for Reference)
Animal Research
+ Expand
  • Animal Models: HCT116 cells are injected s.c. into the right flank of nu/nu mice.
  • Formulation: SNS-314 is formulated in 20% Captisol R.
  • Dosages: ≤42.5 mg/kg
  • Administration: Administered via i.p.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 105 mg/mL (199.22 mM)
Water 6 mg/mL (11.38 mM)
Ethanol <1 mg/mL
In vivo 15% Captisol 30 mg/mL

* 1 mg/ml means slightly soluble or insoluble.
* 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 527.04
Formula

C18H15ClN6OS2.CH4O3S

CAS No. 1146618-41-8
Storage powder
in solvent
Synonyms N/A

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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

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Aurora Kinase Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID