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首页> 外文期刊>Journal of Neuroscience Methods >Survival and differentiation of purified embryonic chick retinal ganglion cells cultured at low density in a chemically defined medium.
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Survival and differentiation of purified embryonic chick retinal ganglion cells cultured at low density in a chemically defined medium.

机译:在化学成分确定的培养基中低密度培养的纯化的胚胎雏鸡视网膜神经节细胞的存活和分化。

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摘要

Both, a tailored chemically defined nutrient medium (BP5) and a sandwich culture sustain the survival for more than a week and allow the differentiation of embryonic chick retinal ganglion cells (RGCs) seeded at low density. Purification of RGCs from 7-11-day old embryos was accomplished by panning using specific anti-chicken Thy-1 antibodies immobilized in plaques. Yield of RGCs was less than 1% of the calculated number of these cells in the used retinas. This result agrees with the scarce expression of Thy-1 in immature retina; accordingly, the most mature RGCs are those probably selected by the panning. This assumption obtained support on the expression of gangliotetraoxylgangliosides (GTOG), that characterize the differentiated retinal neurons. Thus, the outgrowth of processes observed in cultured cells, might imply axonal regeneration in mature neurons. This manageable RGC culture method approaches a system for studying the in vitro trophic factors and substrata which affect axonal regrowth in central nervous system cells.
机译:量身定制的化学成分确定的营养培养基(BP5)和三明治培养物均可维持超过一周的生存期,并能分化出低密度接种的雏鸡视网膜神经节细胞(RGC)。通过使用固定在噬菌斑中的特异性抗鸡Thy-1抗体淘选,可以从7-11天大的胚胎中纯化RGC。 RGC的产量不到所用视网膜中这些细胞计算数量的1%。这一结果与未成熟视网膜中Thy-1的稀缺表达相吻合。因此,最成熟的RGC是可能通过平移选择的RGC。该假设获得了对神经节四氧基神经节苷脂(GTOG)的表达的支持,该表达表征了分化的视网膜神经元。因此,在培养细胞中观察到的生长过程可能暗示成熟神经元中的轴突再生。这种易于管理的RGC培养方法采用了一种系统,用于研究影响中枢神经系统细胞轴突再生的体外营养因子和基质。

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