SNS-314

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.

SNS-314化学構造

CAS No. 1057249-41-8

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SNS-314関連製品

Aurora Kinase阻害剤の選択性比較

生物活性

製品説明 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 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]
Kinase Assay 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
細胞実験 細胞株 HCT116 SCR and HCT116 p53 RNAi cells
濃度 ~125 nM
反応時間 48 hours
実験の流れ

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.

In Vivo
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]
動物実験 動物モデル HCT116 cells are injected s.c. into the right flank of nu/nu mice.
投与量 ≤42.5 mg/kg
投与経路 Administered via i.p.
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT00519662 Completed
Advanced Solid Tumors
Sunesis Pharmaceuticals
August 2007 Phase 1

化学情報

分子量 430.93 化学式

C18H15ClN6OS2

CAS No. 1057249-41-8 SDF Download SNS-314 SDFをダウンロードする
Smiles C1=CC(=CC(=C1)Cl)NC(=O)NC2=NC=C(S2)CCNC3=NC=NC4=C3SC=C4
保管

In vitro
Batch:

DMSO : 100 mg/mL ( (232.05 mM); 吸湿したDMSOは溶解度を減少させます。新しいDMSOをご使用ください。)

Water : Insoluble

Ethanol : Insoluble

モル濃度計算器

in vivo
Batch:

Add solvents to the product individually and in order.

投与溶液組成計算機

実験計算

モル濃度計算器

質量 濃度 体積 分子量

投与溶液組成計算機(クリア溶液)

ステップ1:実験データを入力してください。(実験操作によるロスを考慮し、動物数を1匹分多くして計算・調製することを推奨します)

mg/kg g μL

ステップ2:投与溶媒の組成を入力してください。(ロット毎に適した溶解組成が異なる場合があります。詳細については弊社までお問い合わせください)

% DMSO % % Tween 80 % ddH2O
%DMSO %

計算結果:

投与溶媒濃度: mg/ml;

DMSOストック溶液調製方法: mg 試薬を μL DMSOに溶解する(濃度 mg/mL, 注:濃度が当該ロットのDMSO溶解度を超える場合はご連絡ください。 )

投与溶媒調製方法:Take μL DMSOストック溶液に μL PEG300,を加え、完全溶解後μL Tween 80,を加えて完全溶解させた後 μL ddH2O,を加え完全に溶解させます。

投与溶媒調製方法:μL DMSOストック溶液に μL Corn oil,を加え、完全溶解。

注意:1.ストック溶液に沈殿、混濁などがないことをご確認ください;
2.順番通りに溶剤を加えてください。次のステップに進む前に溶液に沈殿、混濁などがないことを確認してから加えてください。ボルテックス、ソニケーション、水浴加熱など物理的な方法で溶解を早めることは可能です。

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