生物活性

Stauprimide is an enhancer stem cell differentiation into endoderm. In vitro differentiation of embryonic stem cells is of great interest to regenerative medicine, and current protocols are labor-intensive and expensive. Small molecules that induce or enhance differentiation are highly desired. High-content screening identified compounds that enhance endodermal differentiation in the presence of low levels of Activin A. Stauprimide increased definitive endodermal markers but not markers for visceral/parietal endoderm or mesoderm. Stauprimide-differentiated cells could be further differentiated into hepatocytes. Stauprimide treatment during differentiation decreased the concentration of Activin A required for definitive endoderm formation, and it eliminated the need for serum. The mechanism of action of stauprimide is to sensitize cells for differentiation. Stauprimide enabled differentiation into other cell lineages under varying differentiation conditions, including neurons, hematopoietic mesoderm, beating cardiac myocytes, and skeletal muscle. The cellular target of stauprimide was determined to be inhibition of NME2 transcription factor translocation to the nucleus, leading to down-regulation of c-Myc expression.

化学数据

分子量	584.62
分子式	C35H28N4O5
CAS号	154589-96-5
纯度	>98%
溶解性（25°C）	DMSO: ≥20 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

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K_m系数（3），再除以大鼠的K_m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

以下数据基于半岛bd体育手机客户端 分子量，对于特殊半岛bd体育手机客户端 ，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	1.7105 mL	8.5526 mL	17.1051 mL
5 mM	0.3421 mL	1.7105 mL	3.421 mL
10 mM	0.1711 mL	0.8553 mL	1.7105 mL