PCI-24781 (CRA-024781)
(Synonyms: 阿贝司他; 艾贝司他; CRA 024781; PCI-24781) 目录号 : GC14682
An HDAC inhibitor
Cas No.:783355-60-2
Sample solution is provided at 25 µL, 10mM.
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CRA-024781 is a novel HDAC inhibitor targeting HDAC1, HDAC2, HADC3, HADC6, HADC8, HADC10 with IC50 value of 7 nM(Ki), 19 nM(Ki), 8.2 nM(Ki), 17 nM(Ki), 280 nM(Ki), 24 nM(Ki), respectively [1].
Histone deacetylases (HDAC) are a class of enzymes that remove acetyl groups (O=C-CH3) from an ε-N-acetyl lysine amino acid on a histone, allowing the histones to wrap the DNA more tightly.
CRA-024781 exhibits potent antitumor activity against ten human tumor cell lines with GI50 ranging from 0.15 μM to 3.09 μM. CRA-024781 also has an antiproliferative effect on HUVEC endothelial cells with GI50 of 0.43 μM. CRA-024781 treatment causes dose-dependent accumulation of both acetylated histones and acetylated tubulin in HCT116 or DLD-1 cells suggesting that HDAC enzymes are inhibited in these cells. CRA-024781 also induces the expression of p21 (a protein playing a role in the antitumor effect) and leads to PARP cleavage and accumulation of the γH2AX, which indicate apoptosis [1].
Treatment with CRA-024781 at 200 mg/kg once daily every other day significantly inhibits the growth of HCT116 and DLD-1 xenografts in mice by 69% and 59%, respectively. In the HCT116 model, treatment with CRA-024781 at 20 mg/kg, 40 mg/kg, 80 mg/kg, or 160 mg/kg (q.d. × 4 per week) causes inhibition of tumor growth by 48%, 57%, 82.2%, or 80.0%, respectively [1].
Reference:
[1]. Buggy JJ, Cao ZA, Bass KE, et al. CRA-024781: a novel synthetic inhibitor of histone deacetylase enzymes with antitumor activity in vitro and in vivo. Mol Cancer Ther, 2006, 5(5): 1309-1317.
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| Kinase experiment [1]: | |
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HDAC activity |
HDAC activity was measured using a continuous trypsin-coupled assay. For inhibitor characterization, measurements were done in a reaction volume of 100 μL using 96-well assay plates. For each isozyme, the HDAC protein in reaction buffer [50 mM HEPES, 100 mM KCl, 0.001% Tween 20, 5% DMSO (pH 7.4), supplemented with bovine serum albumin at concentrations of 0% (HDAC1), 0.01% (HDAC2, 3, 8, and 10), or 0.05% (HDAC6)] was mixed with PCI-24781 at various concentrations and allowed to incubate for 15 mins. Trypsin was added to a final concentration of 50 nM, and acetyl-Gly-Ala-(N-acetyl-Lys)-AMC was added to a final concentration of 25 μM (HDAC1, 3, and 6), 50 μM (HDAC2 and 10), or 100 μM (HDAC8) to initiate the reaction. Negative control reactions were done in the absence of PCI-24781 in replicates of eight. Reactions were monitored in a fluorescence plate reader. After a 30-min lag time, the fluorescence was measured over a 30-min time frame using an excitation wavelength of 355 nm and a detection wavelength of 460 nm. The increase in fluorescence with time was used as the measure of the reaction rate. Inhibition constants Ki(app) were obtained using the program BatchKi. |
| Cell experiment [1]: | |
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Cell lines |
HCT116, DLD-1, HCT-15, MCF-7, BT-549, NCI-H226, CWR-22RV1, NCI-PC3, SKOV-3, OVCAR-3 and HUVEC cell lines |
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Preparation method |
The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20 °C for several months. |
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Reaction Conditions |
~ 10 μM; 48, 72, 96, or 120 hrs |
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Applications |
PCI-24781 exhibited potent antitumor activity against a variety of tumor cell lines with the GI50% values ranging from 0.15 μM to 3.09 μM. In addition, PCI-24781 also showed an antiproliferative effect on HUVEC with the GI50% value of 0.43 μM. |
| Animal experiment [1]: | |
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Animal models |
Female BALB/c nu/nu mice implanted s.c. with HCT116 and DLD-1 tumor cells |
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Dosage form |
200 mg/kg; i.v.; q.d., every other day |
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Applications |
Administration of PCI-24781 (200 mg/kg; i.v.; q.d., every other day) significantly inhibited the growth of HCT116 and DLD-1 xenografts in mice by 69% and 59%, respectively. |
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Other notes |
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
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References: [1]. Buggy JJ, Cao ZA, Bass KE, et al. CRA-024781: a novel synthetic inhibitor of histone deacetylase enzymes with antitumor activity in vitro and in vivo. Mol Cancer Ther, 2006, 5(5): 1309-1317. |
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| Cas No. | 783355-60-2 | SDF | |
| 别名 | 阿贝司他; 艾贝司他; CRA 024781; PCI-24781 | ||
| 化学名 | 3-[(dimethylamino)methyl]-N-[2-[4-(hydroxycarbamoyl)phenoxy]ethyl]-1-benzofuran-2-carboxamide | ||
| Canonical SMILES | CN(C)CC1=C(OC2=CC=CC=C21)C(=O)NCCOC3=CC=C(C=C3)C(=O)NO | ||
| 分子式 | C21H23N3O5 | 分子量 | 397.42 |
| 溶解度 | ≥ 11.75 mg/mL in DMSO with gentle warming | 储存条件 | Store at -20°C,unstable in solution, ready to use. |
| 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 | 2.5162 mL | 12.5811 mL | 25.1623 mL |
| 5 mM | 0.5032 mL | 2.5162 mL | 5.0325 mL |
| 10 mM | 0.2516 mL | 1.2581 mL | 2.5162 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。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
- View current batch:
- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet