| 产品描述: | ICA-105665 (PF-04895162) is a potent and orally active neuronal Kv7.2/7.3 and Kv7.3/7.5 potassium channels opener. ICA-105665 inhibits liver mitochondrial function and bile salt export protein (BSEP) transport (IC50 of 311 μM). ICA-105665 can penetrate the blood-brain barrier and has antiseizure effects. |
| 靶点: |
Kv7.2/7.3 and Kv7.3/7.5 potassium channels |
| 体外研究: |
对于 ICA-105665 (PF-04895162),在为期 7 天的大鼠毒性研究中,观察到剂量依赖性丙氨酸氨基转移酶 (ALT) 升高,这可能表明存在肝毒性。然而,没有发现肝损伤的组织学证据,并且在重复的 7 天研究中也没有证实 ALT 升高。此外,在大鼠中进行的为期 28 天和 6 个月的毒性研究在转氨酶升高和肝毒性方面均呈阴性,在食蟹猴中长达 9 个月的毒性研究也呈阴性[2]。 ICA -105665 (PF-04895162) 在多种动物模型中表现出广谱抗惊厥活性,包括最大电击、6 Hz 癫痫发作、戊四唑和剂量为 <1 至 5 mg/kg 的电点燃[3] . |
| 体内研究: |
ICA-105665 (PF-04895162) 对 THLE 和 HepG2 细胞系 (72 小时后的 IC50=~192 μM 和 130 μM) 或人肝细胞 (48 小时后的AC50>125 μM) 没有表现出强毒性。 用浓度 >11 μM 的 ICA-105665 (PF-04895162) 处理人肝细胞 25 分钟后,线粒体呼吸储备功能受损。 |
| 参考文献: |
1. Aleo MD, et al. Phase I study of PF‐04895162, a Kv7 channel opener, reveals unexpected hepatotoxicity in healthy subjects, but not rats or monkeys: clinical evidence of disrupted bile acid homeostasis. Pharmacol Res Perspect. 2019 Feb;7(1):e00467. 2. Generaux G, et al. Quantitative systems toxicology (QST) reproduces species differences in PF-04895162 liver safety due to combined mitochondrial and bile acid toxicity. Pharmacol Res Perspect. 2019 Oct 9;7(6):e00523. 3. Kasteleijn-Nolst Trenité DG, et al. Kv7 potassium channel activation with ICA-105665 reduces photoparoxysmal EEG responses in patients with epilepsy. Epilepsia. 2013 Aug;54(8):1437-43. 4. Bialer M, et al. Progress report on new antiepileptic drugs: a summary of the Eleventh Eilat Conference (EILAT XI). Epilepsy Res. 2013 Jan;103(1):2-30. |
| 保存条件: |
-80°C 6个月;-20°C 1个月 |
| 配置溶液浓度参考: |
|
1mg |
5mg |
10mg |
| 1 mM |
2.814 ml |
14.071 ml |
28.142 ml |
| 5 mM |
0.563 ml |
2.814 ml |
5.628 ml |
| 10 mM |
0.281 ml |
1.407 ml |
2.814 ml |
| 50 mM |
0.056 ml |
0.281 ml |
0.563 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。 |