中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (10): 1729-1733.doi: 10.3969/j.issn.1673-8225.2010.10.004

• 干细胞培养与分化 • 上一篇    下一篇

人脐带间充质干细胞冻存复苏后的生物学特征

王有为1,韩之波2,严淑琳1,毛爱彬1,王 斌1,王 丁2,陈 可2,韩忠朝12   

  1. 1细胞产品国家工程研究中心,天津昂赛细胞基因工程有限公司,天津市  300457;
    2中国医学科学院北京协和医学院血液学研究所实验血液学国家重点实验室,天津市  300020
  • 出版日期:2010-03-05 发布日期:2010-03-05
  • 通讯作者: 韩忠朝,细胞产品国家工程研究中心,天津昂赛细胞基因工程有限公司,天津市 300457;中国医学科学院北京协和医学院血液学研究所实验血液学国家重点实验室,天津市 300020
  • 作者简介:王有为,男,1981年生,重庆市人,汉族,2006年四川大学毕业,硕士,主要从事干细胞生物学的研究。 Wangyouwei 1981@hotmail.com
  • 基金资助:

    天津市科技创新专项资金项目(08FDZDSH02900),课题名称:脐带间充质干细胞治疗产品的研制及细胞产品国家工程研究中心建设。

Biological characteristics of human umbilical cord mesenchymal stem cells following cryopreservation

Wang You-wei1, Han Zhi-bo2, Yan Shu-lin1, Mao Ai-bin1, Wang Bin1, Wang Ding2, Chen Ke2, Han Zhong-chao1,2   

  1. 1National Engineering Research Center of Cell Products, AmCell Gene Co., Ltd., TEDA, Tianjin 300457, China;
    2State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin   300020, China
  • Online:2010-03-05 Published:2010-03-05
  • Contact: Han Zhong-chao, National Engineering Research Center of Cell Products, AmCell Gene Co., Ltd., TEDA, Tianjin 300457, China; State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
  • About author:Wang You-wei, Master, National Engineering Research Center of Cell Products, AmCell Gene Co., Ltd., TEDA, Tianjin 300457, China wangyouwei1981@hotmail.com
  • Supported by:

    Special Foundation Project for Technology Innovation of Tianjin, No. 08FDZDSH02900*

摘要:

背景:冻存脐带间充质干细胞,并有效地保持其生物学特性,是储存脐带间充质干细胞以供临床使用的重要工艺之一。
目的:观察冻存后脐带间充质干细胞的生物学特性,验证其是否仍具有间充质干细胞的基本特征。
方法:从脐带分离得到间充质干细胞后,将其冻存于液氮之中。比较经冻存复苏后的脐带间充质干细胞和新鲜制备的脐带间充质干细胞活率、抑制人外周血单个核细胞分泌γ-干扰素等方面的异同。检验经冻存复苏后的脐带间充质干细胞是否具有多向分化潜能,其表型是否满足间充质干细胞的基本特征。
结果与结论:在细胞活率和抑制人外周血单个核细胞分泌γ-干扰素方面,冻存和新鲜的脐带间充质干细胞差异无显著性意义。经冻存复苏后的脐带间充质干细胞保持了间充质干细胞的基本形态,其表型满足间充质干细胞的基本要求,具有多向分化的潜能。

关键词: 冻存, 脐带间充质干细胞, 成骨分化, 成脂分化, 调节免疫

Abstract:

BACKGROUND: An effective freezing-thawing technique is crucial for the clinical application of human umbilical cord mesenchymal stem cells (UC-MSCs).
OBJECTIVE: To investigate biological characteristics of UC-MSCs after cryopreservation.
METHODS: UC-MSCs were isolated from human umbilical cord and frozen in liquid nitrogen. The survival rate and the suppressive effect of γ-interferon (IFN-γ) of cryopreserved-thawed and fresh human UC-MSCs were compared. Furthermore, the multiple potentials and phenotype of UC-MSCs were estimated after cryopreservation.
RESULTS AND CONCLUSION: There was no significant difference between cryopreserved-thawed and fresh human UC-MSCs on the survival rate and the suppressive effect of IFN-γ of peripheral blood mononuclear cells (PBMCs). After cryopreservation, human UC-MSCs had the potential differentiation and the phenotype of mesenchymal stem cells.

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