GSK 2830371
目录号 : GC12880
An inhibitor of Wip1 phosphatase
Cas No.:1404456-53-6
Sample solution is provided at 25 µL, 10mM.
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GSK 2830371 is a highly selective Wip1 phosphatase inhibitor with IC50 of 6 nM.
GSK 2830371 potently inhibits Wip1 (2-420) dephosphorylation of FDP and the endogenous substrates phospho-p38 MAPK (T180) with IC50 values of 6 nM and 13 nM, respectively. In the PPM1D-amplified MCF7 breast carcinoma cells, treatment with GSK 2830371 (0.04, 0.11, 0.33, 1, 3, and 9 μM) increased phosphorylation of substrates in a concentration-dependent manner. Treatment of MX-1 and MCF7 cells (Wip1amplified, p53 wild type) with GSK 2830371 (0.001, 0.01, 0.1, 1, and 10 μM) causes concentration-dependent effects in cell growth assays[1]. GSK2830371 has a 50% growth inhibitory concentration (GI50) of 2.65 μM±0.54 (SEM) in MCF-7 cells. Treatment of MCF-7 cells with 2.5μM GSK2830371 results in marked time-dependent degradation of both isoforms of WIP1 over 8 hours which correlated with p53 stabilisation and phospho-p53Ser15 (pp53Ser15)[2]
In a pharmacodynamic assay, orally administered GSK 2830371 increases phosphorylation of Chk2 (T68) and p53 (S15) and decreased Wip1protein concentrations in DOHH2 tumors. Following 14 d of oral dosing at 150 mg per kg body weight, BID (twice daily) and TID (thrice daily), GSK 2830371 inhibits the growth of DOHH2 tumor xenografts by 41% and 68%, respectively. Comparable tumor growth inhibition is observed in mice treated BID with either 75 or 150 mg per kg body weight. Greater tumor growth inhibition with the TID schedule is consistent with a short half-life of GSK 2830371 in mice and suggests that sustained inhibition of Wip1 may be required for maximal antitumor effect[1].
Reference：
[1]. Gilmartin AG, et al. Allosteric Wip1 phosphatase inhibition through flap-subdomain interaction. Nat Chem Biol. 2014 Mar;10(3):181-7.
[2]. Esfandiari A, et al. Chemical Inhibition of Wild-Type p53-Induced Phosphatase 1 (WIP1/PPM1D) by GSK2830371 Potentiates the Sensitivity to MDM2 Inhibitors in a p53-Dependent Manner. Mol Cancer Ther. 2016 Mar;15(3):379-91.
Kinase experiment: | The primary in vitro Wip1 enzymatic assay measured fluorescence generated by Wip-1 (2-420) hydrolysis of fluorescein diphosphate (FDP). 50 μM FDP substrate is added with GSK 2830371 or DMSO at room temperature before addition of 10 nM Wip1 in assay buffer (50 mM TRIS, pH 7.5, 30 mM MgCl2, 0.8 mM CHAPS, 0.05 mg/mL BSA). Fluorescent signal is detected on a Spectramax microplate reader (485/530 nm)[1]. |
Cell experiment: | Cells are seeded into 96 well plates at 200-400 cells per well and treated with GSK 2830371 dilution series on day 1. After 7 d, we used the CellTiter-Glo cell viability assay to determine effects on cell growth. Luminescent signal is detected on an EnVision 2104. For clonogenic assays, cells are seeded in 12-well tissue culture plates at 2,000 cells per well. Cells are treated with a compound dilution series on day 1 and again on day 7. After 14 d, cells are washed with 1× PBS, stained with 1 mL of Coomassie Brilliant Blue R-250, and colonies are quantitated with the Optomax Sorcerer colony counter[1]. |
Animal experiment: | Mice[1] Female SCID mice are subcutaneously inoculated with 1×107 DOHH2 cells and tumor growth is monitored with electronic calipers. When tumors reached 100-200 mm3, animals are treated orally twice (BID) or thrice (TID) daily with vehicle (2% DMSO and 40% Captisol, pH 4.0) or GSK 2830371. For efficacy studies, eight mice per group are administered with GSK 2830371 at 75 or 150 mg per kg body weight BID or 150 mg per kg body weight TID. Tumor growth inhibition (% difference in tumor growth compared to control) is calculated when tumors for vehicle-control mice exceeded 1,000 mm3 (day 11). For pharmacodynamic biomarker analysis, DOHH2 tumors from three mice are harvested 2 or 4 h after final dose following 14 d of treatment with either vehicle or GSK 2830371 at 75 or 150 mg per kg body weight, BID; tumors are frozen in liquid nitrogen for subsequent lysis and western blot analysis. |
References: [1]. Gilmartin AG, et al. Allosteric Wip1 phosphatase inhibition through flap-subdomain interaction. Nat Chem Biol. 2014 Mar;10(3):181-7. | |
| Cas No. | 1404456-53-6 | SDF | |
| 化学名 | (S,Z)-2-(5-(((5-chloro-2-methylpyridin-3-yl)amino)methyl)thiophene-2-carboxamido)-3-cyclopentyl-N-cyclopropylpropanimidic acid | ||
| Canonical SMILES | CC1=C(NCC(S2)=CC=C2C(N[C@@](/C(O)=N/C3CC3)([H])CC4CCCC4)=O)C=C(Cl)C=N1 | ||
| 分子式 | C23H29ClN4O2S | 分子量 | 461.02 |
| 溶解度 | DMF: 30 mg/ml,DMF:PBS (pH 7.2) (1:5): 0.1 mg/ml,DMSO: 25 mg/ml,Ethanol: 25 mg/ml | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.1691 mL | 10.8455 mL | 21.691 mL |
| 5 mM | 0.4338 mL | 2.1691 mL | 4.3382 mL |
| 10 mM | 0.2169 mL | 1.0846 mL | 2.1691 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
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Quality Control & SDS
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- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
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