生物活性
Ribociclib (LEE011) 是一种高度特异性的 CDK4/6 抑制剂，IC50 值分别为 10 nM 和 39 nM，对 cyclin B/CDK1 复合体的活性低于其 1000 倍。
化学数据
| 分子量 | 434.54 |
| 分子式 | C23H30N8O |
| CAS号 | 1211441-98-3 |
| 纯度 | >99% |
| 溶解性（25°C） | DMSO 8 mg/mL |
| 储存和运输条件 | 固体粉末： -20°C 冷藏长期储存
常温运输及临时存放 |
实验操作 来自于公开的文献，仅供相同实验参考（如实验材料、目的不同，请参考其他文献）
| 细胞实验 |
|---|
| 细胞系 | MYCN amplified neuroblastoma cell lines |
| 方法 | Pharmacologic growth inhibition LEE011 was provided by Novartis pharmaceuticals. A panel of neuroblastoma cell lines, selected based upon prior demonstration of substrate adherent growth, was plated in triplicate on the Xcelligence Real-Time Cell Electronic Sensing system (ACEA Biosciences) and treated 24 hours later with a four-log dose range of inhibitor or with a DMSO control. Cell indexes were monitored continuously for ~100 hours, and IC50 values were determined as follows: Growth curves were generated by plotting the cell index as a function of time and were normalized to the cell index at the time of treatment for a baseline cell index of 1. The area under the normalized growth curve from the time of treatment to 96 hours post-treatment was then calculated using a baseline area of 1 (the cell index at the time of treatment). Areas were normalized to the DMSO control, and the resulting data were analyzed using a non-linear log inhibitor vs. normalized response function (Graphpad). All experiments were repeated at least once. |
| 浓度 | 0~10μM |
| 处理时间 | 96h |
| 动物实验 |
|---|
| 动物模型 | BE2C, NB-1643, or EBC1 cell line-derived xenografts of CB17 SCID–/– mice |
| 配制 | 0.5 % methylcellulose |
| 剂量 | 200 mg/kg |
| 给药处理 | oral |
不同实验动物依据体表面积的等效剂量转换表（数据来源于FDA指南）
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
| 重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| 体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
| 动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
| 动物 A的Km系数 |
例如，依据体表面积折算法，将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量，需要将20 mg/kg 乘以小鼠的Km系数（3），再除以大鼠的Km系数（6），得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于产品分子量，对于特殊产品，请参照COA中的储备液配制条件和说明进行操作。
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 2.3013 mL | 11.5064 mL | 23.0128 mL |
| 5 mM | 0.4603 mL | 2.3013 mL | 4.6026 mL |
| 10 mM | 0.2301 mL | 1.1506 mL | 2.3013 mL |
