L-Canavanine sulfate
(Synonyms: L-刀豆氨酸硫酸盐) 目录号 : GC16656
L-Canavanine硫酸盐是诱导型NO合酶的选择性抑制剂。
Cas No.:2219-31-0
Sample solution is provided at 25 µL, 10mM.
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L-Canavanine sulfate is a selective inhibitor of inducible NO synthase.
L-Canavanine sulfate (L-CAV) causes only a limited degree of cytotoxicity in HeLa, Hep G2, and SK-HEP-1 cells when given alone in arginine-rich media with IC50 values ranging from 5 to 10 mM. In HaCaT keratinocyte cell line, IC50 of L-Canavanine sulfate exceeds the concentration of 10 mM, indicating low cytotoxicity in normal cells in vitro. In arginine-free media, IC50 of L-Canavanine sulfate in HeLa, Hep G2, and SK-HEP-1 cells are 0.21±0.04; 0.64±0.16; and 1.18±0.14 mM, respectively. L-Canavanine sulfate, which is hardly toxic alone, potentiates the cytotoxicity of vinblastine (VIN) and paclitaxel (PTX) in HeLa and hepatocellular carcinoma cells[2].
Administration of L-Canavanine sulfate (100 mg/kg) produces a moderate increase in mean arterial pressure of 20 mm Hg, returns blood pressure to near basal levels and completely attenuates the lipopolysaccharide-induced hypotension. All, but one, endotoxaemic rats dosed with L-Canavanine sulfate (100 mg/kg) survive for 6 h post lipopolysaccharide, after which time the experiment is terminated (n=7)[1]. L-canavanine inhibits DNA synthesis by Li 210 cells in vivo and significantly increases the lifespan of animals bearing the Li 210 leukemia. An optimal dose of 18 g/kg produces a peak increase in lifespan of 44%. The therapeutic dose range is narrow, and a dose of 24 g/kg causes death due to drug toxicity[3].
References:
[1]. Teale DM, et al. L-canavanine restores blood pressure in a rat model of endotoxic shock. Eur J Pharmacol. 1994 Dec 12;271(1):87-92.
[2]. Nurcahyanti AD, et al. Cytotoxic potentiation of vinblastine and paclitaxel by L-canavanine in human cervical cancer and hepatocellular carcinoma cells. Phytomedicine. 2015 Dec 15;22(14):1232-7.
[3]. Green MH, et al. Antitumor activity of L-canavanine against L1210 murine leukemia. Cancer Res. 1980 Mar;40(3):535-7.
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Cell experiment: |
A dose-dependent cytotoxicity is examined using the MTT assay. Into each well of 96-well plates, 2×104 of cells are seeded, and after 24 h incubation, cells are incubated with test compounds (including L-Canavanine sulfate). After 24 h, 0.5 mg/mL of MTT is added to each well of HeLa, Caco-2, MIA PaCa-2, BxPC-3 and SK-HEP-1 cells, while MTT is added to Hep G2 after 48 h incubation with test compounds (including L-Canavanine sulfate). The cells are then incubated for 3 h so that the viable cells could produce formazan crystals; they are then dissolved in 100 μL DMSO. After incubation for 10 min in a shaker, the absorption of the formazan is measured at 570 nm using a reader[2]. |
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Animal experiment: |
Male rats weighing 295 to 305 g are used. After a period of stabilization, 6 mg lipopolysaccharide/kg is administered intravenously in 0.3 mL over 2 min, and cardiovascular parameters are monitored over 5 to 6 h. L-Canavanine sulfate is administered intravenously in a 0.2 mL volume bolus injection at 100 mg/kg[1].Mice: L-Canavanine is dissolved in phosphate-buffered saline[1]. L-Canavanine (100 mg/mb) is infused at a rate of 0.1 mL/hr through a catheter implanted S.C. over the back. Groups of 5 mice are treated at each dose beveltogether with 6 to 8 control animals and are inspected twice per day for median time of death[1]. |
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References: [1]. Teale DM, et al. L-canavanine restores blood pressure in a rat model of endotoxic shock. Eur J Pharmacol. 1994 Dec 12;271(1):87-92. |
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| Cas No. | 2219-31-0 | SDF | |
| 别名 | L-刀豆氨酸硫酸盐 | ||
| 化学名 | (S)-2-amino-4-(((diaminomethylene)amino)oxy)butanoic acid compound with sulfuric acid (1:1) | ||
| Canonical SMILES | OS(O)(=O)=O.OC([C@H](CCO/N=C(N)\N)N)=O | ||
| 分子式 | C5H12N4O3.H2SO4 | 分子量 | 274.25 |
| 溶解度 | Soluble in sterile water | 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 | 3.6463 mL | 18.2315 mL | 36.4631 mL |
| 5 mM | 0.7293 mL | 3.6463 mL | 7.2926 mL |
| 10 mM | 0.3646 mL | 1.8232 mL | 3.6463 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: >97.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet