The invention provides an in vitro method for producing isolated mammalian primitive retinal stem cells (pRSCs) comprising: (a) culturing isolated embryonic stem cells (ESCs) from a mammal in a cell culture medium that is free of feeder cells, feeder-conditioned medium or serum so as to produce and grow a culture of the isolated ESCs; and (b) contacting the culture of the isolated ESCs so grown with one or more of an inhibitor for Wnt or TGF-β/BMP signaling so as to differentiate the isolated ESCs of (a) into primitive retinal stem cells thereby producing isolated mammalian pRSCs.
本发明提供了一种生产分离的哺乳动物原始视网膜干细胞(pRSCs)的体外方法,包括(a) 在不含饲养细胞、饲养调节
培养基或血清的
细胞培养基中培养来自哺乳动物的分离胚胎干细胞(ESCs),以产生和生长分离的ESCs培养物;以及 (b) 用一种或多种Wnt或TGF-β/
BMP信号转导抑制剂与如此生长的分离ESCs培养物接触,以使(a)中的分离ESCs分化为原始视网膜干细胞,从而产生分离的哺乳动物pRSCs。