中文名称: 普仑司特 促销  一键复制产品信息
英文名称: Pranlukast
CAS No: 103177-37-3
分子式: C27H23N5O4
分子量: 481.5
EINEC: 201-616-4
P10021 普仑司特 ≥99% (普西唐-psaitong)
熔点:
236-238°C
包装规格:
100mg 1g 5g in poly bottle
产品简介:
一种半胱氨酰白三烯受体(CYSLTR1)选择性拮抗剂。减轻气道平滑肌收缩。降低支气管哮喘症状的可能性。
溶解性:
溶于DMSO、甲醇、DMF(~ 20mg/ml)
储备液保存:
-80°C, 2 years
-20°C, 1 year
体内实验:
1、请依序添加每种溶剂: 10% DMSO→40% PEG300→5% Tween-80→45% Saline
Solubility: 2.75 mg/mL (5.71 mM); 悬浊液; 超声助溶
此方案可获得 2.75 mg/mL 的均匀悬浊液,悬浊液可用于口服和腹腔注射。
以 1 mL 工作液为例,取 100 μL 27.5 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;再向上述体系中加入50 μL Tween-80,混合均匀;然后再继续加入 450 μL 生理盐水 定容至 1 mL。
2、请依序添加每种溶剂: 10% DMSO→90% Corn Oil
Solubility: ≥ 2.75 mg/mL (5.71 mM); 澄清溶液
此方案可获得 ≥ 2.75 mg/mL(饱和度未知)的澄清溶液,此方案实验周期在半个月以上的动物实验酌情使用。
以 1 mL 工作液为例,取 100 μL 27.5 mg/mL 的澄清 DMSO 储备液加到 900 μL 玉米油中,混合均匀。

<1mg/ml表示微溶或不溶。
普西唐提供的所有化合物浓度为内部测试所得,实际溶液度可能与公布值有所偏差,属于正常的批间细微差异现象。
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。
靶点:
LTE4:0.63 nM (Ki);LTD4:0.99 nM (Ki);LTC4:5640 nM (Ki)
体外研究:
In the radioligand binding assay, Pranlukast (ONO-1078) inhibits [3H]LTE4, [3H]LTD4, and[3H]LTC4 bindings to lung membranes with Kis of 0.63±0.11, 0.99±0.19, and 5640±680 nM,respectively. The antagonism of Pranlukast against [3H]LTD4binding is competitive. In functional experiments, Pranlukast shows competitive antagonism against the LTC4- and LTD4-induced contractions of guinea pig trachea and lung parenchymal strips with a pA2 range of 7.70 to 10.71.
In the presence of an inhibitor of the bioconversion of LTC4 to LTD4, Pranlukast also antagonizes the LTC4-induced contraction of guinea pig trachea (pA2=7.78). Pranlukast significantly reverses the LTD4-induced prolonged contraction without effect on the KCl- and BaCl2-induced contractions of guinea pig trachea. Oxygen-glucose deprivation (OGD)-induced nuclear translocation of CysLT1 receptors is inhibited by pretreatment with the CysLT1 receptor antagonist Pranlukast (10μM). Pranlukast protects endothelial cells against ischemia-like injury. The effects of the CysLT1 receptor antagonist Pranlukast and the 5-lipoxygenase inhibitor Zileuton on translocation are also assessed. The results show that Pranlukast, but not Zileuton, inhibits the translocation of the CysLT1 receptor 6 h after OGD
体内研究:
Carrageenan (CAR, 5 mg per mouse) is injected i.p. 24 h before LPS (50 p,g per mouse) is injected i.v. Various doses of Pranlukast (ONO-1078; 40, 20, and 10 mmol/kg), AA-861 (20, 10, and 5 mmol/kg),Indomethacin (40 mmollkg), and the controls are injected s.c. into mice 30 min before they are challenged with 50 p,g of LPS. The maximum soluble doses are 0.6 mmol/mL in 10% DMSO for AA-861 and 1.2 mmol/mL in 10% ethanol for Pranlukast. These solutions are used as the maximum doses for the treatments. The mortality of mice is significantly decreased in AA-861- Pranlukast-treated mice relative to that in the control mice. Pretreatment with CAR (5 mg i.p.) renders the mice more sensitive to the effect of LPS. Although the survival rate of mice treated with each solvent is 20% at 72 h after LPS (50 p,g per mouse) administration, s.c. treatment with AA-861 (20 mmol/kg) or Pranlukast (40 mmol/kg) significantly increases the survival rate after the LPS administration (AA-861, P<0.001; Pranlukast, P<0.01).
保存条件:
2-8℃
注意事项:
1、为了您的安全和健康,请穿实验服并戴一次性手套操作。
2、以上信息仅做参考交流之用。
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