中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (19): 3012-3016.doi: 10.3969/j.issn.2095-4344.2014.19.010

• 脐带脐血干细胞 umbilical cord blood stem cells • 上一篇    下一篇

人脐带间充质干细胞的分离鉴定及多向诱导分化

李  茂,黄  文   

  1. 重庆医科大学附属第一医院血管外科,重庆市  400016
  • 修回日期:2014-04-05 出版日期:2014-05-07 发布日期:2014-05-07
  • 通讯作者: 黄文,博士,主任医师,教授,重庆医科大学附属第一医院血管外科,重庆市 400016
  • 作者简介:李茂,男,1975年生,江西省抚州市人,汉族,2014年重庆医科大学毕业,硕士,主治医师,主要从事干细胞移植治疗下肢缺血性疾病的研究。
  • 基金资助:

    重庆市基金资助项目(2009-2-333),项目名称:人鼠脊髓蛛网膜下腔移植人脐带间充质干细胞于脊髓损伤部位归巢的研究

Human umbilical cord mesenchymal stem cells: isolation, identification and multi-directional differentiation

Li Mao, Huang Wen   

  1. Department of Vascular Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
  • Revised:2014-04-05 Online:2014-05-07 Published:2014-05-07
  • Contact: Huang Wen, M.D., Chief physician, Professor, Department of Vascular Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
  • About author:Li Mao, Master, Attending physician, Department of Vascular Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
  • Supported by:

    the Supporting Fund of Chongqing City, No. 2009-2-333

摘要:

背景:脐带间充质干细胞取材方便、无创,不受伦理学限制,比一般干细胞原始,免疫原性小,其应用前景广阔,是一种理想的种子细胞。
目的:分离鉴定脐带间充质干细胞,并诱导其向成骨细胞和成脂细胞分化。
方法:组织块贴壁法分离纯化脐带间充质干细胞,取对数生长期的第3代细胞,观察细胞形态、生长方式;流式细胞仪检测干细胞表型CD90、CD105、CD34和CD45的表达情况,并在体外检测能否将其诱导分化为成脂细胞及成骨细胞。
结果与结论:用组织块法成功分离培养出脐带间充质干细胞,流式细胞学鉴定显示细胞强表达CD90和CD105,不表达CD34和CD45;能在体外将其成功诱导为脂肪细胞和成骨细胞。结果显示组织块贴壁法能够从人脐带中分离出间充质干细胞,该细胞可向成脂细胞及成骨细胞分化。


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, 脐带脐血干细胞, 脐带间充质干细胞, 分化, 成脂细胞, 成骨细胞

Abstract:

BACKGROUND: The umbilical cord mesenchymal stem cells can be obtained conveniently, noninvasively, without ethical restrictions, which are more original that stem cells from other sources and have little immunogenicity. Therefore, umbilical cord mesenchymal stem cells are a kind of ideal seed cells with promising application prospects.
OBJECTIVE: To induce the differentiation of mesenchymal stem cells derived from human umbilical cord into adipocytes and osteoblasts.
METHODS: The umbilical cord mesenchymal stem cells were isolated by tissue explants method. The morphology, proliferation and immunophenotype of the 3rd passage cells were analyzed, and then cells were induced to adipocytes and osteoblasts in vitro. The expressions of CD90, CD105, CD34 and CD15 were detected by flow cytometry.
RESULTS AND CONCLUSION: The umbilical cord mesenchymal stem cells isolated by tissue explants method could be cultured and proliferated in vitro. Flow cytometry analysis revealed that the cells were strongly positive for CD90 and CD105, but negative for CD34 and CD45. The umbilical cord mesenchymal stem cells could be induced to adipocytes and osteoblasts in vitro. These findings indicate that mesenchymal stem cells can be successfully obtained from human umbilical cord by tissue explants method and have the potential of multi-directional differentiation.


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: umbilical cord, mesenchymal stem cells, cell culture techniques, cell differentiation, adipogenesis

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