| 产品描述: | Icerguastat (Sephin1), a derivative of Guanabenz lacking the α2-adrenergic activity, is a selective inhibitor of the phosphatase regulatory subunit PPP1R15A (R15A). Icerguastat inhibits eIF2α dephosphorylation, thereby prolonging the protective response. Anti-prion effect |
| 靶点: |
Phosphatase |
| 体外研究: |
Icerguastat (5 μM) 在应激条件下延长少突胶质细胞中的 eIF2α 磷酸化。 Icerguastat (Sephin1) (一种全磷酸酶的选择性抑制剂),在体内安全和选择性地抑制蛋白磷酸酶 1 的调节亚基。Icerguastat 选择性结合并抑制应激诱导的 PPP1R15A,但不结合和抑制相关的组成型 PPP1R15B,以延长适应性磷酸信号通路的益处,保护细胞免受其他致命的蛋白质错误折叠应激 |
| 体内研究: |
Icerguastat (4-8 mg/kg;腹腔注射;每日一次,持续 35 天) 可延缓 EAE (实验性自身免疫性脑脊髓炎) 的发作。 Icerguastat (100 μg;ip) 延长了感染朊病毒的小鼠的存活时间。 Animal Model: C57BL/6J female mice immunized with MOG35-55/CFA to induce chronic EAE Dosage: 4 mg/kg, 8 mg/kg Administration: I.p.; daily for 35 days Result: Significantly delayed clinical disease onset with both dosages, but to a greater extent with the 8 mg/kg treatment. Animal Model: Five-week-old female FVB mice (intracerebrally with mouse-adapted RML prions) Dosage: 100 μg Administration: I.p.; 3 times per week for 60 days, after 60 days of treatment, the treatment was reduced to two i.p. injections per week for another 20 days. Result: Significantly prolonged survival of prion-infected mice. |
| 参考文献: |
1. Chen Y, et al. Sephin1, which prolongs the integrated stress response, is a promising therapeutic for multiple sclerosis. Brain. 2019;142(2):344-361. 2. Das I, et al. Preventing proteostasis diseases by selective inhibition of a phosphatase regulatory subunit. Science. 2015;348(6231):239-242 3. Thapa S, et al. Sephin1 Reduces Prion Infection in Prion-Infected Cells and Animal Model. Mol Neurobiol. 2020;57(5):2206-2219. |
| 溶解性: |
Soluble in DMSO |
| 保存条件: |
-20℃ |
| 配置溶液浓度参考: |
|
1mg |
5mg |
10mg |
| 1 mM |
5.085 ml |
25.427 ml |
50.855 ml |
| 5 mM |
1.017 ml |
5.085 ml |
10.171 ml |
| 10 mM |
0.509 ml |
2.543 ml |
5.085 ml |
| 50 mM |
0.102 ml |
0.509 ml |
1.017 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。 |