MLi-2 别名：MLi2
MLi-2 是一种高选择性的，具有口服活性的 LRRK2 抑制剂，在纯化的LRRK2激酶体外测定中的IC50值为0.76 nM，在pSer935 LRRK2去磷酸化的细胞测定中的IC50值为1.4 nM，在放射性配体竞争结合测定中的IC50值为3.4 nM。
CAS No.：1627091-47-7
化学性质/溶解性/储存
| 分子量 | 379.46 |
| 分子式 | C21H25N5O2 |
| CAS号 | 1627091-47-7 |
| 溶解性 | DMSO 60 mg/mL |
| 储存条件 |
粉末型式 -20°C 3年；4°C 2年 溶于溶剂 -80°C 6个月；-20°C 1个月 |
| 运输方式 | 冰袋运输，根据产品的不同，可能会有相应调整。 |
生物活性
MLi-2 is a highly potent, and selective LRRK2 kinase inhibitor with central nervous system activity. MLi-2 exhibits exceptional potency in a purified LRRK2 kinase assay in vitro (IC50 = 0.76 nM), a cellular assay monitoring dephosphorylation of LRRK2 pSer935 LRRK2 (IC50 = 1.4 nM), and a radioligand competition binding assay (IC50 = 3.4 nM). MLi-2 has greater than 295-fold selectivity for over 300 kinases in addition to a diverse panel of receptors and ion channels.
Acute oral and subchronic dosing in MLi-2 mice resulted in dosedependent central and peripheral target inhibition over a 24-hour period as measured by dephosphorylation of pSer935 LRRK2. Treatment of MitoPark mice with MLi-2 is well tolerated over a 15-week period at brain and plasma exposures >100× the in vivo plasma IC50 for LRRK2 kinase inhibition as measured by pSer935 dephosphorylation. Morphologic changes in the lung, consistent with enlarged type II pneumocytes, are observed in MLi-2-treated MitoPark mice.
实验参考
下述溶液配置方法仅为基于分子量计算出的理论值。不同产品在配置溶液前，需考虑其在不同溶剂中的溶解度限制。
| 浓度/溶剂体积/质量 | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 2.6353 mL | 13.1766 mL | 26.3532 mL |
| 5 mM | 0.5271 mL | 2.6353 mL | 5.2706 mL |
| 10 mM | 0.2635 mL | 1.3177 mL | 2.6353 mL |
*吸湿的DMSO对产品的溶解度有显著影响，请使用新开封的DMSO；
请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
| 细胞系 | SH-SY5Y cells |
| 方法 | A human neuroblastoma cell line, SH-SY5Y, is used for the LRRK2 stable cell line construction. SH-SY5Y cells are cultured in Dulbecco’s modified Eagle’s medium/F-12 supplemented with GlutaMax, 10% tetracycline (Tet)-free fetal bovine serum, nonessential amino acids, pen-strep at 37°C and 5% carbon dioxide. Parental cells are transfected with plasmid constructs that overexpress full-length human LRRK2 wildtype or mutant (G2019S) under the control of a Tet-inducible promoter. Transfected cells are selected and maintained with hygromycin (2 mg/ml) and zeocin (100 mg/ml). Cells are seeded into six-well plates and induced with Tet (2 mg/ml) for 72 hours prior to treatment. After 90 minutes of MLi-2 incubation, cells were mechanically lifted, pelleted, and lysed with lysis buffer supplemented with protease, and phosphatase inhibitors. Pellets are further bead homogenized and then spun at 13,200 rpm for 20 minutes at 4°C. Supernatants are then removed for subsequent Western blot analyses. |
| 浓度 | 10 serial 3-fold dilutions, top concentration 5 μM |
| 处理时间 | 90 min |
* 上述方法来自公开文献，仅供相同目的实验参考。如实验目的、材料、方法不同，请参考其他文献。
建议您制定动物给药及实验方案时，尽量参考已发表的相关实验文献（溶剂种类及配比众多，简单地溶解目的化合物，并不能解决动物给药依从性、体内生物利用度、组织分布等相关问题，未必能保证目的化合物在动物体内充分发挥生物学效用）。
体内实验的工作液，建议您现用现配，当天使用；如在配制过程中出现沉淀、析出现象，可以通过超声和（或）加热的方式助溶。
切勿一次性将产品全部溶解。
请在下面的计算器中，输入您的动物实验相关数据并点击计算，即可得到该实验的总需药量和工作液终浓度。
例如您给药剂量是10 mg/kg，平均每只动物的体重为20 g，每只动物的给药体积是100 μL，动物数量为20只，则该动物实验的总需药量为4 mg，工作液终浓度为2 mg/mL。
1：鉴于实验过程的损耗，建议您至少多配1-2只动物的量；
2：为该产品最终给药时的浓度。
| 动物模型 | male C57Bl/6 mice weighing 20-25g |
| 配制 | suspended in 30% Captisol |
| 剂量 | 1-100 mg/kg; administered in a volume of 10 ml/kg |
| 给药处理 | IV or PO administration |
* 上述方法来自公开文献，仅供相同目的实验参考。如实验目的、材料、方法不同，请参考其他文献。
其他相关的LRRK2产品
参考文献
