Valategrast
(Synonyms: R-411 free base) 目录号 : GC63490
Valategrast (R-411 free base) 是一种有效的口服活性整联蛋白 α4β1 (VLA-4) 和 α4β7 双重拮抗剂。Valategrast 可用于慢性阻塞性肺疾病 (COPD) 和哮喘的研究。
Cas No.:220847-86-9
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Valategrast (R-411 free base) is a potent and orally active integrin α4β1 (VLA-4) and α4β7 dual antagonist. Valategrast has the potential for Chronic obstructive pulmonary disease (COPD) and asthma treatment[1][2].
Valategrast contains a common l-phenylalanine-N-aroyl motif where the carboxylic acid is responsible for binding to the metal ion in the metal-ion-dependent adhesion site (MIDAS)[2].
[1]. Woodside DG, et al. Cell adhesion antagonists: therapeutic potential in asthma and chronic obstructive pulmonary disease. BioDrugs. 2008;22(2):85-100.
[2]. Halland N, et al. Small Macrocycles As Highly Active Integrin α2β1 Antagonists. ACS Med Chem Lett. 2014 Jan 10;5(2):193-8.
| Cas No. | 220847-86-9 | SDF | |
| 别名 | R-411 free base | ||
| 分子式 | C30H32Cl3N3O4 | 分子量 | 604.95 |
| 溶解度 | DMSO : 170 mg/mL (281.01 mM; Need ultrasonic) | 储存条件 | -80°C, stored under nitrogen |
| 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 | 1.653 mL | 8.2651 mL | 16.5303 mL |
| 5 mM | 0.3306 mL | 1.653 mL | 3.3061 mL |
| 10 mM | 0.1653 mL | 0.8265 mL | 1.653 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。
Cell adhesion antagonists: therapeutic potential in asthma and chronic obstructive pulmonary disease
BioDrugs 2008;22(2):85-100.PMID:18345706DOI:10.2165/00063030-200822020-00002.
Chronic obstructive pulmonary disease (COPD) and asthma are inflammatory diseases of the lung where a hallmark feature is excessive leukocyte infiltration that leads to tissue injury. Cell adhesion molecules (e.g. selectins and integrins) play a key role in cell trafficking, and in the lung they regulate leukocyte extravasation, migration within the interstitium, cellular activation, and tissue retention. All selectin family members (including L-selectin, P-selectin, and E-selectin) and many of the beta1 and beta2 integrins appear to be important therapeutic targets, as numerous animal studies have demonstrated essential roles for these cell adhesion molecules in lung inflammation. Not surprisingly, these families of adhesion molecules have been under intense investigation by the pharmaceutical industry for the development of novel therapeutics. Integrins are validated drug targets, as drugs that antagonize integrin alphaIIbbeta3 (e.g. abciximab), integrin alphaLbeta2 (efalizumab), and integrin alpha4beta1 (natalizumab) are currently US FDA-approved for acute coronary syndromes, psoriasis, and multiple sclerosis, respectively. However, none has been approved for indications related to asthma or COPD. Here, we provide an overview of roles played by selectins and integrins in lung inflammation. We also describe recent clinical results (both failures and successes) in developing adhesion molecule antagonists, with specific emphasis on those targets that may have potential benefit in asthma and COPD. Early clinical trials using selectin and integrin antagonists have met with limited success. However, recent positive phase II clinical trials with a small-molecule selectin antagonist (bimosiamose) and a small-molecule integrin alpha4beta1 antagonist (Valategrast [R411]), have generated enthusiastic anticipation that novel strategies to treat asthma and COPD may be forthcoming.
Small Macrocycles As Highly Active Integrin α2β1 Antagonists
ACS Med Chem Lett 2014 Jan 10;5(2):193-8.PMID:24900800DOI:10.1021/ml4004556.
Starting from clinical candidates Firategrast, Valategrast, and AJM-300, a series of novel macrocyclic platelet collagen receptor α2β1 antagonists were developed. The amino acid derived low molecular weight 14-18-membered macrocycles turned out to be highly active toward integrin α2β1 with IC50s in the low nanomolar range. The conformation of the macrocycles was found to be highly important for the activity, and an X-ray crystal structure was obtained to clarify this. Subsequent docking into the metal-ion-dependent adhesion site (MIDAS) of a β1 unit revealed a binding model indicating key binding features. Macrocycle 38 was selected for further in vitro and in vivo profiling.