CRA-026440
目录号 : GC32565
CRA-026440 是一种有效的广谱 HDAC 抑制剂。
Cas No.:847460-34-8
Sample solution is provided at 25 µL, 10mM.
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CRA-026440 is a potent, broad-spectrum HDAC inhibitor. The Ki values against recombinant HDAC isoenzymes HDAC1, HDAC2, HDAC3, HDAC6, HDAC8, and HDAC10 are 4, 14, 11, 15, 7, and 20 nM respectively.
CRA-026440 inhibits pure recombinant isozymes HDAC1, HDAC2, HDAC3/SMRT, HDAC6, HDAC8, and HDAC10 in the nanomolar range. Treatment of cultured tumor cell lines grown in vitro with CRA-026440 results in the accumulation of acetylated histone and acetylated tubulin, leading to an inhibition of tumor cell growth and the induction of apoptosis. To determine if HDAC inhibition by CRA-026440 affects the proliferation of tumor cells, a panel of human tumor cell lines is treated in vitro at various concentrations of inhibitor. Antitumor activity is observed in all 10 tumor cell lines tested, with GI50 values ranging from 0.12 to 9.95 μM. In addition, CRA-026440 has antiproliferative effect on HUVEC endothelial cells with a GI50 value of 1.41 μM[1].
CRA-026440 parenterally given to mice harboring HCT116 or U937 human tumor xenografts results in a statistically significant reduction in tumor growth. CRA-026440 is delivered i.v. to mice, and plasma concentrations are monitored over time. Based on these data, the clearance is calculated to be 38 mL/min/kg; the volume of distribution in the central compartment is 67 mL/kg. The steady-state volume of distribution is 454 mL/kg. The predominant plasma half-life is 7 minutes (44% of area under the curve); and the mean residence time is 12 minutes. One notable finding is that CRA-026440 has a different pharmacokinetic profile in tumor. It has a lower Cmax, but the compound concentration is maintained more steadily over time, probably due to the compound's large volume of distribution. CRA-026440 at 25 and 50 mg/kg given qdx3 per week significantly inhibits tumor growth at 40% (P<0.01) and 58% (P<0.01), respectively. The combination of Avastin at 25 mg/kg once a week and CRA-026440 at 25 and 50 mg/kg for three consecutive days per week lead to more profound tumor growth inhibition of 84% (P< 0.01) and 85% (P<0.01), respectively. Compared with Avastin alone, the combination yields a marginally better result (P<0.1). The combination of Avastin and CRA-026440 at 50 mg/kg is significantly better than CRA-026440 alone at 50 mg/kg (P<0.05). Both combination treatments are well tolerated with maximal weight loss <3%[1].
[1]. Cao ZA, et al. CRA-026440: a potent, broad-spectrum, hydroxamic histone deacetylase inhibitor with antiproliferative and antiangiogenic activity in vitro and in vivo. Mol Cancer Ther. 2006 Jul;5(7):1693-701.
Cell experiment: | Ten tumor cell lines and HUVECs are cultured for at least two doubling times, and growth is monitored at the end of compound exposure using an Alamar Blue fluorometric cell proliferation assay. CRA-026440 is assayed in triplicate wells at nine concentrations in half-log intervals from 0.0015 to 10 μM. The concentration required to inhibit cell growth by 50% (GI50) and 95% confidence intervals are estimated from nonlinear regression using a four-variable logistic equation[1]. |
Animal experiment: | Mice[1] Female BALB/c nu/nu mice are used. HCT116 at 3×106 and U937 at 4×106 are implanted s.c. Tumor-bearing mice are randomized based on tumor volume before the initiation of treatment. The treatment duration is 2 and 3 weeks for the U937 and the HCT 116 xenograft models, respectively. For combination studies, Avastin is given i.p. once a week, a day before the i.v. administration of CRA-026440. Tumor volume is calculated. Inhibition of tumor growth is calculated. HCT 116 tumor-bearing nude mice are treated with CRA-026440 at 100 mg/kg daily for three consecutive days. Tumor xenograft samples are fixed overnight in 10% zinc-buffered formalin and embedded in paraffin. Immunohistochemical staining on Ki-67 is done at BioPathology Sciences Medical Corp. |
References: [1]. Cao ZA, et al. CRA-026440: a potent, broad-spectrum, hydroxamic histone deacetylase inhibitor with antiproliferative and antiangiogenic activity in vitro and in vivo. Mol Cancer Ther. 2006 Jul;5(7):1693-701. | |
| Cas No. | 847460-34-8 | SDF | |
| Canonical SMILES | O=C(C(N1)=CC2=C1C=CC(OCCN(C)C)=C2)NCC#CC3=CC=C(C(NO)=O)C=C3 | ||
| 分子式 | C23H24N4O4 | 分子量 | 420.46 |
| 溶解度 | DMSO : 100 mg/mL (237.83 mM; Need ultrasonic) | 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 | 2.3783 mL | 11.8917 mL | 23.7835 mL |
| 5 mM | 0.4757 mL | 2.3783 mL | 4.7567 mL |
| 10 mM | 0.2378 mL | 1.1892 mL | 2.3783 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
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- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet