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- W3030983513 abstract "目的 探讨胚胎干细胞(ESC)在视黄酸联合视网膜细胞共培养诱导条件下的分化特征.方法将ESC自液氮中复苏、培养,传1代后进行拟胚体培养.将部分3.5 d拟胚体离心重悬后加入含有视黄酸的24孔板中进行诱导,另一部分加入已经培养有视网膜混合细胞的培养瓶中,培养液中同时也加入视黄酸.视网膜混合细胞中仅加入视黄酸未加拟胚体作为对照.倒置相差显微镜下观察细胞在整个诱导过程中形态学的改变并使用免疫细胞化学检测诱导细胞中巢蛋白、胶质纤维酸性蛋白、广谱细胞角蛋白、微管相关蛋白-2、视紫质蛋白表达情况.结果(1)形态学改变仅由视黄酸诱导,诱导细胞呈多种形态;在共培养条件下,绝大多数拟胚体分化出来的细胞形态非常单一,呈透明圆形.部分原贴壁的视网膜细胞出现了明显的网状结构.(2)免疫细胞化学显示两种诱导条件均可见大部分诱导细胞MAP-2阳性,并可见Nestin阳性细胞.共培养诱导尚可见GFAP阳性、Cytokeratin阳性和Rhodopsin阳性的细胞.结论视黄酸可以诱导大部分细胞成为神经细胞,在视黄酸和与视网膜细胞共培养诱导条件下,可以获得更为纯化的形态一致的神经样细胞,部分诱导细胞表达视网膜细胞的特性。" @default.
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- W3030983513 date "2004-12-15" @default.
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- W3030983513 title "In vitro differentiation of embryonic stem cells induced by retinoid acid and co-culture of retinal cells" @default.
- W3030983513 doi "https://doi.org/10.3760/cma.j.issn.2095-0160.2004.06.002" @default.
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