• 产品描述： Asapiprant (S-555739) is a potent and selective DP1 receptor antagonist (Ki: 0.44 nM). It exhibited high affinity and selectivity for the DP1 receptor

• 靶点： Prostaglandin Receptor;ProstaglandinReceptor

• 体外研究：
  Asapiprant strongly inhibited the cAMP elevation elicited by PGD2 in human platelets with a half-maximal inhibitory concentration (IC50) value of 16 nM. Strong inhibition by asapiprant was observed in the cAMP elevation induced by PGD2 in guinea pigs, rats, and sheep with IC50 values (nM) of 61, 74, and 15, respectively.

• 体内研究：
  Intranasal challenge with 0.5% PGD2 led to a rapid increase in nasal resistance (sRaw) from 5 min to 60 min in sensitized guinea pigs. Oral administration of asapiprant at 1 and 3 mg/kg significantly suppressed the increase in nasal resistance by 82% and 92%, respectively. By contrast, S-5751 showed partial suppression on PGD2-induced nasal resistance in guinea pigs at 30 mg/kg by 76% that was inferior to the suppression by asapiprant at 3 mg/kg

• 细胞实验： The functional antagonist activity of asapiprant on the DP1 receptor was evaluated by examining PGD2-induced elevation of cyclic adenosine monophosphate (cAMP) in platelet-rich plasma derived from venous blood (humans, guinea pigs, and sheep), and in rat DP1-transfected cells stimulated with PGD2, as described elsewhere. The functional antagonist activity of asapiprant on the DP2 receptor was evaluated by examining PGD2-induced shape change of peripheral eosinophils derived from humans and guinea pigs, as reported previously.

• 动物实验： After the oral administration of asapiprant or S-5751 to rats, guinea pigs, dogs, and sheep at 10 mg/kg in suspension with 0.5% methylcellulose solution, the plasma concentrations of the drugs were measured by liquid chromatography/tandem mass spectrometry or high-performance liquid chromatography

• 参考文献：
  1. Takahashi G, et al. Effect of the potent and selective DP1 receptor antagonist, asapiprant (S-555739), in animal models of allergic rhinitis and allergic asthma. Eur J Pharmacol. 2015 Oct 15;765:15-23.

• 溶解性： Soluble  in  DMSO

• 保存条件： 2-8°C

• 配置溶液浓度参考：
  

  	1mg	5mg	10mg
  1 mM	1.994 ml	9.969 ml	19.938 ml
  5 mM	0.399 ml	1.994 ml	3.988 ml
  10 mM	0.199 ml	0.997 ml	1.994 ml
  50 mM	0.04 ml	0.199 ml	0.399 ml

• 注意：部分产品我司仅能提供部分信息，我司不保证所提供信息的权威性，仅供客户参考交流研究之用。

输入产品批号：

本计算器可帮助您计算出特定溶液中溶质的质量、溶液浓度和体积之间的关系，公式为：

质量 (mg) = 浓度 (mM) x 体积 (mL) x 分子摩尔量 (g/mol)

• pg ng μg mg g kg =
  fM pM nM μM mM M *
  nL μL mL L *