| 产品描述: | NS3623 is an activator of human ether-a-go-go-related gene (hERG1/KV11.1) potassium channels. NS3623 activates the IKr and Ito currents and has antiarrhythmic effect. NS3623 has a dual mode of action, being an inhibitor of hERG1 channels |
| 靶点: |
Potassium Channel;PotassiumChannel |
| 体外研究: |
在分离的犬心肌细胞中,NS3623 (5 μM) 的应用大大增加了尾流的大小,证实了先前的研究表明该药物增加了 IKr。NS3623 对培养细胞IKr的影响也进行了评估。48 小时后,与新分离的细胞相比,IKr 的大小大大降低。新分离心肌细胞IKr 尾流峰值为0.47±0.08 pA/pF,培养2天的心肌细胞IKr 尾流峰值为 0.28±0.06 pA/pF。NS3623 的应用增加了培养的中间细胞的 IKr。对 IKr 尾流的电流电压 (I-V) 关系的分析表明,NS3623 在培养 1 天和 2 天的 |
| 体内研究: |
在麻醉豚鼠中,NS3623 (30mg/kg;静脉注射;持续 3 分钟) 使校正的QT间期缩短 25±4%。 在清醒豚鼠中,NS3623 (50 mg/kg) 使QT间期缩短 30±6%。NS3623 (50 mg/kg) 立即缩短 QTcF 间隔,并显著缩短约 30 分钟。 Animal Model: Anesthetized guinea pig Dosage: 30 mg/kg Administration: Intravenous injection; lasting for 3 minutes Result: Shortened the corrected QT interval by 25 +/- 4%. |
| 参考文献: |
1. Hansen RS, et al. In vivo effects of the IKr agonist NS3623 on cardiac electrophysiology of the guinea pig. J Cardiovasc Pharmacol. 2008 Jul;52(1):35-41. 2. Diness JG, et al. Antiarrhythmic effect of IKr activation in a cellular model of LQT3. Heart Rhythm. 2009 Jan;6(1):100-6. 3. Calloe K, et al. A dual potassium channel activator improves repolarization reserve and normalizes ventricular action potentials. Biochem Pharmacol. 2016 May 15;108:36-46. 4. Hansen RS, et al. Biophysical characterization of the new human ether-a-go-go-related gene channel opener NS3623 [N-(4-bromo-2-(1H-tetrazol-5-yl)-phenyl)-N'-(3'-trifluoromethylphenyl)urea]. Mol Pharmacol. 2006 Oct;70(4):1319-29. |
| 溶解性: |
Soluble in DMSO |
| 保存条件: |
-20℃ |
| 配置溶液浓度参考: |
|
1mg |
5mg |
10mg |
| 1 mM |
2.341 ml |
11.705 ml |
23.409 ml |
| 5 mM |
0.468 ml |
2.341 ml |
4.682 ml |
| 10 mM |
0.234 ml |
1.17 ml |
2.341 ml |
| 50 mM |
0.047 ml |
0.234 ml |
0.468 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。 |