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| 活性类型 | Relation | Activity value | Units | Action Type | 期刊 | PubMed Id | doi | Assay Aladdin ID |
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提供 ≥98% 纯度,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
Information
ICI-118551 is a highly selectiveβ2-adrenergic receptor antagonistwithKivalues of 0.7, 49.5 and 611 nM for β2, β1 and β3 receptors, respectively.
Targets
β2-adrenergic receptor (Cell-free assay); β1-adrenergic receptor (Cell-free assay); β3-adrenoceptor (Cell-free assay) 0.7nM(Ki); 49.5nM(Ki); 611nM(Ki)
In vitro
ICI-118551 inhibits cAMP accumulation by 50% (IC50 = 1.7 mM). Pharmacological experiments proves that the right shift of the norepinephrine dose-response curve by ICI 118551 is mediated via a beta(2)-adrenoceptor/G(i/o) protein-dependent pathway enhancing NO production in the endothelium; these results are corroborated in beta-adrenoceptor and endothelial NO synthase knockout mice where ICI 118551 has no effect. ICI 118551 increases vascular lumen diameter in lung sections and reduces pulmonary arterial pressure under normoxia and under hypoxia in the isolated perfused lung model. Transgenic mice with high beta(2)AR number and increased G(i) levels have normal basal contractility but show a similar negative inotropic response to ICI 118,551. Overexpression of human beta(2)AR in rabbit myocytes using adenovirus potentiates the negative inotropic effect of ICI 118,551. In human, rabbit, and mouse myocytes, the negative inotropic effects are blocked after treatment of cells with pertussis toxin to inactivate G(i), and overexpression of G(i)alpha(2) induces the effect de novo in normal rat myocytes.
In vivo
After 1 week of treatment, ICI 118,551 has no effect on the beta 1-receptor mediated shortening of electromechanical systole (QS2I), the rise in systolic pressure and rise in renin, whereas these responses are blocked by a dose factor of eight after propranolol. ICI 118,551 and propranolol equally block the beta 2-receptor mediated fall in diastolic pressure and the rise in noradrenaline. beta 2-selective blockade by ICI 118,551 lowers blood pressure.
Cell Research(from reference)
Cell lines:MEF cell line
Concentrations:10μM
Incubation Time:2-hours incubation at room-temperature
分类树(Taxonomy Tree)
| 界(kingdom) | 有机化合物 |
|---|---|
| 超类(Superclass) | 苯类化合物 |
| 类(Class) | Indanes |
| 亚类(Subclass) | 暂无 |
| 中间层级节点(Intermediate Tree Nodes) | 暂无 |
| 直接上位类(Direct Parent) | Indanes |
| 其他上位类(Alternative Parents) | 烷基芳基醚 仲醇 1,2-氨基醇 二烷基胺 有机光子化合物 盐酸盐 碳氢化合物衍生物 |
| 分子骨架(Molecular Framework) | 芳香族同多环化合物 |
| 取代基(Substituents) | 1,2-氨基醇 - 羟基苯甲酸酯 - 芳基醚 - 氨基酸 - 芳香族同多环化合物 - 乙醚 - 烃衍生物 - 氟氯烃 - 茚烷 - 有机硝基化合物 - 有机氧化合物 - 有机氮化合物 - 有机氧化合物 - 有机氮化合物 - 醛基 - 二级脂肪胺 - 醛基 |
| 描述(Description) | 该化合物属于称为茚烷的有机化合物类别。这类化合物含有茚烷结构单元,其由环戊烷与苯环共环构成。 |
| 外部描述符(External Descriptors) | 暂无 |
| IC50 | β3-adrenoceptor, Ki: 611nM; β2-adrenergic receptor, Ki: 0.7nM; β1-adrenergic receptor, Ki: 49.5nM |
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