Valproic acid
(Synonyms: 丙戊酸; VPA; 2-Propylpentanoic Acid) 目录号 : GC11424
A class I HDAC inhibitor
Cas No.:99-66-1
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
| Kinase experiment [1]: | |
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In vitro Kinase assays |
For in vitro HDAC assays, myc epitope-tagged HDAC1 was transfected into HeLa cells and immunoprecipitated. Immunoprecipitates were washed, resuspended in HD buffer (20 mM Tris-HCl, pH 8.0, 150 mM NaCl, 10% glycerol), and stored as frozen aliquots. HDAC1 was then added to a tube containing 40,000 cpm 3H-labeled acetylated histones (purified from HeLa cells) in 200 μl of HD buffer ±valproic acid,. After rotation for 2 h at 37 °C, the reaction was stopped by the addition of 50 μl of stop solution and released 3H-labeled acetic acid was extracted and analyzed by scintillation counting. |
| Cell experiment [1, 2]: | |
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Cell lines |
Neuro2A cells, human ovarian cancer cell line SKOV3 |
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Preparation method |
Soluble in DMSO. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months. |
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Reacting condition |
0.5–5 mM for 24 h; or 4 mM for 48 h |
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Applications |
Valproic acid induced hyperacetylation of endogenous histones and inhibited nuclear HDAC activity in Neuro2A cells. Moreover, valproic acid inhibited cell proliferation, and induced apoptosis of SKOV3 cells in a dose- and time- dependent manner. |
| Animal experiment [2, 3]: | |
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Animal models |
human ovarian cancer model transplanted subcutaneously in nude mice |
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Dosage form |
500mg/kg/day, intraperitoneal injection, for 30 days |
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Applications |
Valproic acid induced growth inhibition of human ovarian cancer transplanted subcutaneously in nude mice. Moreover, valproic acid (50 mg/kg, IV infusion) decreased pro-inflammatory cytokine gene expression in a canine endotoxemia model in vivo. |
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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. Phiel, C. J., Zhang, F., Huang, E. Y., Guenther, M. G., Lazar, M. A. and Klein, P. S. (2001) Histone deacetylase is a direct target of valproic acid, a potent anticonvulsant, mood stabilizer, and teratogen. J Biol Chem. 276, 36734-36741 2. Shan, Z., Feng-Nian, R., Jie, G. and Ting, Z. (2012) Effects of valproic acid on proliferation, apoptosis, angiogenesis and metastasis of ovarian cancer in vitro and in vivo. Asian Pac J Cancer Prev. 13, 3977-3982 3. Song, R., Yu, D., Yoon, J. and Park, J. (2015) Valproic acid attenuates the expression of pro-inflammatory cytokines lipopolysaccharide-treated canine peripheral blood mononuclear cells (in vitro) and in a canine endotoxemia model (in vivo). Vet Immunol Immunopathol. 166, 132-137 |
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Valproic acid is an inhibitor of HDAC1 with IC50 value of 0.4mM [1].
Valproic acid (VPA) is a branched short-chain fatty acid. It is previously synthesized and used as an inert solvent of organic compounds. VPA is then found to have ability in preventing pentylenetetrazol-induced convulsions in rodents. It is used as an antiepileptic drug via inhibiting the activity of GABA. VPA is found to inhibit the degradation of GABA and increase GABA synthesis as well as inhibit GABA Transaminobutyratre. It also blocks Na+ channels, Ca2+ channels and voltage-gated K+ channels. Besides that, VPA is reported as an inhibitor of HDAC, making it to be a potential therapeutic for cancers. VPA inhibits HDAC1 in vitro with IC50 value of 0.4mM. For nuclear extracts from HeLa cells, VPA inhibits HDACs with IC50 values from 0.5mM to 2mM [1, 2].
References:
[1] Phiel C J, Zhang F, Huang E Y, et al. Histone deacetylase is a direct target of valproic acid, a potent anticonvulsant, mood stabilizer, and teratogen. Journal of Biological Chemistry, 2001, 276(39): 36734-36741.
[2] Chateauvieux S, Morceau F, Dicato M, et al. Molecular and therapeutic potential and toxicity of valproic acid. BioMed Research International, 2010, 2010.
| Cas No. | 99-66-1 | SDF | |
| 别名 | 丙戊酸; VPA; 2-Propylpentanoic Acid | ||
| 化学名 | 2-propylpentanoic acid | ||
| Canonical SMILES | CCCC(CCC)C(=O)O | ||
| 分子式 | C8H16O2 | 分子量 | 144.21 |
| 溶解度 | ≥ 36mg/mL in Water, ≥ 29mg/mL in EtOH, ≥ 12.35mg/mL in DMSO | 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 | 6.9343 mL | 34.6717 mL | 69.3433 mL |
| 5 mM | 1.3869 mL | 6.9343 mL | 13.8687 mL |
| 10 mM | 0.6934 mL | 3.4672 mL | 6.9343 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。