Hydroxy Dynasore (Dyngo-4a) 是 Dynasore 结构模拟类似物，是一种改进的，低细胞毒性和通用的 dynamin 抑制剂，针对大脑重组 dynamin I 和重组鼠 dynamin II 的 IC50 值分别为 0.38 μM 和 2.3μM。Hydroxy Dynasore 抑制 dynamin 依赖性转铁蛋白的内吞作用 (endocytosis) 的 IC50 为 5.7 μM。
| CAS No. | 1256493-34-1 |
| 生物活性 | Hydroxy Dynasore (Dyngo-4a), a structural analog of Dynasore , is an potency improved, low cytotoxicity and non‐specific binding dynamin inhibitor with IC50 values of 0.38 μM and 2.3 μM for brain dynamin I and recombinant rat dynamin II, respectively. Hydroxy Dynasore inhibits dynamin‐dependent endocytosis of transferrin with an IC50 of 5.7 μM in vitro. |
| 分子式 | C18H14N2O5 |
| 分子量 | 338.31 |
| 运输条件 | Room temperature in continental US; may vary elsewhere. |
| 储存条件 | Powder -20°C 3 years |
| 溶解性数据 | DMSO : 62.5 mg/mL (184.74 mM; Need ultrasonic) |
| 体内研究 | Hydroxy Dynasore (intraperitoneal injection; 30 mg/kg; 1.5-2 h before BoNT/A injection) provides protection again BoNT/A-induced paralysis in the phrenic nerve-hemidiaphragm twitch model in CD-1 mice. |
| 体外研究 | Dynamin is a large GTPase enzyme that severs membrane‐bound clathrin‐coated vesicles. Endocytosis internalizes portions of cells’ plasma membrane along with extracellular material, is fundamentally important in cell physiology. Hydroxy Dynasore inhibits Dynamin I (Dyn I) activity with IC50 values of 2.7 μM and 0.38 μM with or without 0.06% Tween‐80 in the GTPase assay. Hydroxy Dynasore shows an IC50 of 5.7 μM in clathrin‐mediated endocytosis (CME) assay for inhibition of Tfn‐A594 uptake in U2OS cells. Hydroxy Dynasore shows IC50 values of 0.38 μM and 1.1 μM in absence of Tween-80, and exhibits IC50 values of 4.9 μM and 30.0 μM in presence of Tween-80, respectively. Hydroxy Dynasore is 2.1‐fold selective for DynI versus DynII from Sf21 cells] and DynII (recombinant protein from Sf21 cells) in this GTPase assay. Hydroxy Dynasore prevents the uptake of BoNT/A-Hc in cultured hippocampal neurons and in motor nerve terminals. Hydroxy Dynasore (1-100μM; 20 min prior to the addition of Alexa Fluor 488-BoNT/A-Hc) results in depolarization of Hippocampal neurons, it dose-dependently inhibits internalization of Alexa Fluor 488-BoNT/A-Hc with an IC50 of 16.0 ± 1.2 μM. |
| 纯度及产品资料 | 98% |
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