中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (45): 7306-7311.doi: 10.3969/j.issn.2095-4344.2014.45.017

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

小鼠胚胎成纤维细胞的分离培养及饲养层制备

胡三强1,王妍妍2,马永宾2,胡嘉波2   

  1. 1连云港市妇幼保健院检验科,江苏省连云港市 222000;2江苏大学医学院,江苏省镇江市 212013
  • 出版日期:2014-11-05 发布日期:2014-11-05
  • 通讯作者: 胡嘉波,博士,教授,江苏大学医学院,江苏省镇江市 212013
  • 作者简介:胡三强,男,1973年生,江苏省东海县人,汉族,2012年江苏大学毕业,硕士,主要从事干细胞方面的研究。
  • 基金资助:

    江苏大学高级人才专项资助(09JDG037);国家自然科学基金资助项目(31071421)

Isolation and culture of mouse embryonic fibroblasts and preparation of feeder layers

Hu San-qiang1, Wang Yan-yan2, Ma Yong-bin2, Hu Jia-bo2   

  1. 1Department of Clinical Laboratory, Lianyungang Maternal and Child Health Hospital, Lianyungang 222000, Jiangsu Province, China; 2School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China
  • Online:2014-11-05 Published:2014-11-05
  • Contact: Hu Jia-bo, M.D., Professor, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China
  • About author:Hu San-qiang, Master, Department of Clinical Laboratory, Lianyungang Maternal and Child Health Hospital, Lianyungang 222000, Jiangsu Province, China
  • Supported by:

     the Senior Personnel Special Fund of Jiangsu University, No. 09JDG037; the National Natural Science Foundation of China, No. 31071421

摘要:

背景:建立一种既可以大量制备,又易于保存并保持较高活性的饲养层细胞是人胚胎干细胞培养研究的重要环节 。

 

目的:建立昆明小鼠胚胎成纤维细胞的最佳分离培养方法,评价其用于人胚胎干细胞饲养层研究的可行性。

 

方法:用不同浓度胰蛋白酶分步消化法体外分离和培养昆明小鼠胚胎成纤维细胞,观察其生物学特性,制备胚胎成纤维细胞饲养层,检测人胚胎干细胞在饲养层上培养的生长状态。

 

结果与结论:制备昆明小鼠胚胎成纤维细胞饲养层的最佳胎龄为13.5 d。不同浓度胰蛋白酶分步消化法制备的胚胎成纤维细胞生长状态好,获得的成纤维细胞纯度高,增殖活跃。冻存2周,1,3,6个月内复苏的细胞存活率差异无显著性意义。小鼠胚胎成纤维细胞在第2-4代增殖旺盛,第5代以后细胞增殖活力明显下降。人胚胎干细胞在小鼠胚胎成纤维细胞长期传代后呈典型的未分化形态,碱性磷酸酶和过碘酸-雪夫染色均为阳性。结果表明建立的昆明小鼠胚胎成纤维细胞饲养层分离培养法可为人胚胎干细胞扩增提供稳定、优质的饲养层细胞。

 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

关键词: 干细胞, 培养, 人胚胎干细胞, 小鼠胚胎成纤维细胞, 饲养层, 国家自然科学基金

Abstract:

OBJECTIVE: To establish the optimal method for isolation and culture of Kunming mouse embryonic fibroblasts, and to evaluate the feasibility of preparing feeder layers for culture of human embryonic stem cells.

METHODS: Embryonic fibroblasts were isolated and cultured by different concentrations of trypsin from Kunming mouse fetuses in vitro. The biological characteristics and growth rule of mouse embryonic fibroblasts were investigated, and then the feeder layers for human embryonic stem cells culture were produced. The growth of human embryonic stem cells on the prepared feeder layer was tested.
RESULTS AND CONCLUSION: The optimal fetal age for preparing Kunming mouse embryonic fibroblast feeder layer was 13.5 days. Kunming mouse embryonic fibroblasts at different concentrations grew well with high purity and active proliferation by trypsin digestion method. There was no significant difference in the survival rate of cells after cryopreservation for 2 weeks, 1 month, 3 months and 6 months. The cells were proliferative from the second to fourth passage and declined sharply after the fifth passage. Human embryonic stem cells which grew on Kunming mouse embryonic fibroblasts feeder layers were still to remain the typical undifferentiated morphology and were strongly positive for alkaline phosphatase and periodic acid-Schiff after long-term subculture. The mouse embryonic fibroblasts can be used as the stable and high-quality feeder cells for human embryonic stem cells.

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

Key words: embryonic stem cells, fibroblasts, trophoblasts

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