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从小鼠类ES细胞分化群中分离培养一类衍生细胞及其培养特性

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摘要 将小鼠囊胚在饲养层、无类LIF因子的培养基中培养出类ES细胞团,将该类ES细胞团传至第三代,暂停传代,继续培养,则4~5 d后该细胞团会向周围分化出一种圆而发亮的衍生细胞,该衍生细胞会不断地向周围生长,约20 d后该衍生细胞铺满培养皿底.将该衍生细胞传至铺有饲养层的培养瓶中继续传代至第七代,再将其传代至无饲养层的培养瓶中,约12 d后,其在无饲养层的培养瓶中长满瓶底.以后随着传代数的增加,该细胞长满瓶底所需时间越来越短,最后稳定在2~3 d.对传代至第30代的细胞进行生长曲线测定,并以不同的基础培养基、不同的血清浓度、不同的胰岛素浓度等条件培养该细胞,结果发现:该衍生细胞分别在DMEM高糖、DMEM低糖、DMEM-F12、PRMI1640等为基础的培养基中都能生长,但以DMEM-F12为最优.在血清浓度分别为10%、14%、18%的DMEM高糖培养基中培养显示:该细胞在高浓度血清的培养基中具有生长更好的趋势.在胰岛素浓度分别为0、0.25、0.5、1 μg/ml的DMEM高糖培养基中培养显示:该细胞在无胰岛素的培养基中无法正常生长,在0.5 μg/ml胰岛素浓度的培养基中生长最佳.
出处 《上海畜牧兽医通讯》 2005年第5期20-21,共2页 Shanghai Journal of Animal Husbandry and Veterinary Medicine
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