摘要:
近年来的研究发现,鸡、大鼠和人视网膜中的穆勒胶质细胞(mullercell)在一定条件下，可显示出视网膜干/前体细胞的功能。但是,有关人类近亲猕猴穆勒细胞的研究尚未见报道。该研究首先使用基础培养基(DMEM+10%FBS)建立猕猴的穆勒细胞系,其表达GS、vimentin、CRALBP和EGFR等穆勒细胞标记,不表达GFAP,与人的穆勒细胞基因表达相似而与啮齿类差异较大。穆勒细胞经神经干细胞培养基培养一周后可表达pax6、nestin、sox2、otx2、six6和six3等视网膜干细胞标记,继续使用视黄酸诱导,部分细胞可分化为神经元细胞，这说明猕猴的穆勒细胞在体外诱导条件下，可去分化为视网膜前体细胞,有望成为视网膜疾病细胞替代疗法的一种细胞来源。
Abstract:
Recent evidences indicate that retinal muller cells exhibit retinal progenitor characteristics under certain condition in chick, rat and human. However, there is no report on nonhuman primate, a close relative to human. In this study, we first established a muller cell line of rhesus monkey expressing GS, vimentin, CRALBP, EGFR, barely GFAP, which resemble the expression profile of human muller cells, differ from that of rodent. Expression of pax6, nestin, sox2, otx2, six6, and six3 was detected after one week culture in neural stem cell medium. Further culture with retinoic acid induced some cells differentiate toward neuron. These results suggest that primate muller cell is capable of dedifferentiating to retinal progenitors, which may serve as a potential cell source for cell therapy to treat retinal degenerative diseases.
点击查看大图
下载:
