The present invention provides compositions and methods for human neural cell production. More particularly, the present invention provides cellular differentiation methods employing amphiphilic lipid compounds, preferably ceramide analogs of the β-hydroxyalkylamine type and optionally employing an essentially serum free MEDII conditioned medium for the generation of human neural cells from pluripotent human cells. The methods alternatively comprise modulating apoptosis by modifying the levels of PAR-4, with or without the presence of amphiphilic lipid compounds and optionally employing MEDII conditioned medium. The methods alternatively encompass modulating apoptosis by modulating the intracellular concentration of endogenous lipid second messengers, such as ceramide.
本发明提供了用于人类神经细胞生产的组合物和方法。更具体地说,本发明提供了细胞分化方法,采用两亲脂质化合物,最好是β-羟基烷基
胺类神经酰胺类似物,并可选择地采用基本上无血清的MEDII条件
培养基,从多能人类细胞中产生人类神经细胞。这些方法还包括通过调节 PAR-4 的
水平来调节细胞凋亡,无论是否存在两亲脂质化合物,并可选择使用 MEDII 条件
培养基。这些方法还包括通过调节内源性脂质第二信使(如神经酰胺)的细胞内浓度来调节细胞凋亡。