To avoid the direct contact with mouse cells and possible heterogeneous pathogen in future application, we need to replace mouse embryonic fibroblasts with human fibroblasts as the feeder layer to maintain human embry...To avoid the direct contact with mouse cells and possible heterogeneous pathogen in future application, we need to replace mouse embryonic fibroblasts with human fibroblasts as the feeder layer to maintain human embryonic stem cells growth in the undifferentiated state. We success-fully use human fibroblasts derived from aborted fetus and adult prepuce as feeder layer to maintain human embryonic stem cells growth. During the passage and growth on this feeder layer, the human embryonic stem cells can keep their undifferentiated state.展开更多
目的探讨使用人脐静脉内皮细胞制备饲养层的方法。方法使用健康产妇剖宫产后同意遗弃的脐带,无菌状态下胶原酶消化法收集内皮细胞,进行传代培养和增殖扩增,免疫组化法进行Ⅷ因子相关抗原鉴定,分别取 P2～P5代内皮细胞经丝裂霉素 C(10μg...目的探讨使用人脐静脉内皮细胞制备饲养层的方法。方法使用健康产妇剖宫产后同意遗弃的脐带,无菌状态下胶原酶消化法收集内皮细胞,进行传代培养和增殖扩增,免疫组化法进行Ⅷ因子相关抗原鉴定,分别取 P2～P5代内皮细胞经丝裂霉素 C(10μg/ml)分别处理30、60、90、120 min 后再接种 E14.1胚胎干细胞。观察 E14.1胚胎干细胞在内皮细胞上的生长情况。结果经丝裂霉素 C 处理30～60 min 后的 P2～P3代内皮细胞可以很好的支持胚胎干细胞的生长。结论人脐静脉血管内皮细胞可作为一种来源丰富、取材方便的人源化饲养层细胞,为以后临床应用打下基础。 [临床儿科杂志,2008,26(10):890-892]展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.30030070 and 3010403048)the National Major Basic Research Project(Grant No.001CB51010)+1 种基金the Natural Science Fund of Hunan Province(Grant No.00JJY2036)the Science and Technology Conquest of Hunan Province(Grant No.01SSY1001).
文摘To avoid the direct contact with mouse cells and possible heterogeneous pathogen in future application, we need to replace mouse embryonic fibroblasts with human fibroblasts as the feeder layer to maintain human embryonic stem cells growth in the undifferentiated state. We success-fully use human fibroblasts derived from aborted fetus and adult prepuce as feeder layer to maintain human embryonic stem cells growth. During the passage and growth on this feeder layer, the human embryonic stem cells can keep their undifferentiated state.
文摘目的探讨使用人脐静脉内皮细胞制备饲养层的方法。方法使用健康产妇剖宫产后同意遗弃的脐带,无菌状态下胶原酶消化法收集内皮细胞,进行传代培养和增殖扩增,免疫组化法进行Ⅷ因子相关抗原鉴定,分别取 P2～P5代内皮细胞经丝裂霉素 C(10μg/ml)分别处理30、60、90、120 min 后再接种 E14.1胚胎干细胞。观察 E14.1胚胎干细胞在内皮细胞上的生长情况。结果经丝裂霉素 C 处理30～60 min 后的 P2～P3代内皮细胞可以很好的支持胚胎干细胞的生长。结论人脐静脉血管内皮细胞可作为一种来源丰富、取材方便的人源化饲养层细胞,为以后临床应用打下基础。 [临床儿科杂志,2008,26(10):890-892]
