Discovery and structure-activity relationships of spiroindolines as novel inducers of oligodendrocyte progenitor cell differentiation

A novel series of spiroindoline derivatives was discovered for use as inducers of oligodendrocyte progenitor cell (OPC) differentiation, resulting from optimization of screening hit 1. Exploration of structure-activity relationships led to compound 18, which showed improved potency (rOPC EC₅₀ = 0.0032 μM). Furthermore, oral administration of compound 18 significantly decreased clinical severity in an experimental autoimmune encephalomyelitis (EAE) model.     

Efficient induction of neural progenitor cells from human ESC/iPSCs on Type I Collagen

Science China Life Sciences - A stable, rapid and effective neural differentiation method is essential for the clinical applications of human embryonic stem cells (ESCs) or induced pluripotent stem...     

发酵法生产紫杉醇的检测分析

目的:采用高效液相色谱法对发酵液中的紫杉醇进行测定。方法:将紫杉醇产生菌发酵产物经乙酸乙酯萃取得测定样品,高效液相色谱分析方法为苯基柱(250mm×4.6mm,5μm),流动相乙腈-甲醇-水(36∶4∶60),流速1mL/min,检测波长227nm,进样体积20μL,柱温室温。结果:紫杉醇与干扰物可达到基线分离,在2.2～110μg/mL范围内,紫杉醇的峰面积与浓度线性关系良好,相关系数0.9996,平均回收率为99.55%,RSD为0.60%。结论:与使用C18柱色谱条件相比,该分析方法灵敏度高,不需要复杂的样品前处理过程,仪器配置不复杂、操作方便、准确性高,可有效地检测发酵液中紫杉醇的含量。