中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (17): 2717-2721.doi: 10.3969/j.issn.2095-4344.0870

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

电穿孔法转染脐带华通胶间充质干细胞的最佳条件

王 泽1,2,李春花2,张宁坤2,高连如2,陈 宇1,2   

  1. 1安徽医科大学海军临床学院,北京市 100048;2解放军海军总医院心血管内科,北京市 100048
  • 修回日期:2018-05-15 出版日期:2018-06-18 发布日期:2018-06-18
  • 通讯作者: 陈宇,博士,博士后,副主任医师,硕士生导师,安徽医科大学海军临床学院,北京市 100048;解放军海军总医院心血管内科,北京市 100048
  • 作者简介:王泽,女,1991年生,安徽省池州市人,汉族,安徽医科大学海军临床学院在读硕士,主要从事干细胞治疗的研究。
  • 基金资助:

    国家自然科学基金(81370238,81370901)

Optimal conditions for transfecting Wharton’s Jelly-derived mesenchymal stem cells with electroporation method

Wang Ze1, 2, Li Chun-hua2, Zhang Ning-kun2, Gao Lian-ru2, Chen Yu1, 2   

  1. 1The Navy Clinical College of Anhui Medical University, Beijing 100048, China; 2Department of Cardiology, Navy General Hospital of PLA, Beijing 100048, China
  • Revised:2018-05-15 Online:2018-06-18 Published:2018-06-18
  • Contact: Chen Yu, M.D., Associate chief physician, Master’s supervisor, the Navy Clinical College of Anhui Medical University, Beijing 100048, China; Department of Cardiology, Navy General Hospital of PLA, Beijing 100048, China
  • About author:Wang Ze, Master candidate, the Navy Clinical College of Anhui Medical University, Beijing 100048, China; Department of Cardiology, Navy General Hospital of PLA, Beijing 100048, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81370238, 81370901

摘要:

文章快速阅读:

文题释义:
脐带华通胶间充质干细胞:
脐带华通胶间充质干细胞富含透明质酸,占脐带中黏多糖的70%,形成成纤维细胞周围的水凝胶结构,确保脐带中不仅含有大量的胶原纤维,还包括大量增殖能力极强的间充质干细胞。华通胶曾被认为是医疗的废弃物,然而现在很多研究者都以此为干细胞中的研究重点,认为其是理想的种子细胞。
电穿孔:当生物细胞暴露于足够幅度的脉冲电场时,它们的质膜通透性增加。在膜通透性增加时,不能进入细胞的分子可被导入细胞内部,或者细胞组分可从细胞中泄漏出来,这个现象称为电穿孔。电穿孔可有效转染干细胞等转染较难的细胞系,从而成为近10年来研究主题之一。

 

摘要
背景:
脐带华通胶间充质干细胞是目前较为原始的干细胞,为当前干细胞的研究热点之一,是基因治疗的理想载体。然而,目前尚未有对脐带华通胶间充质干细胞电转染条件的研究,因此探索脐带华通胶间充质干细胞的电转染最佳条件占据重要地位。
目的:探讨不同电穿孔条件对脐带华通胶间充质干细胞转染率的影响,以确定最佳电转染条件。
方法:通过控制电压、脉冲时长及细胞状态等转染条件,采用不同条件组合后用电穿孔法将质粒EEV-EGFP转入脐带华通胶间充质干细胞,流式细胞仪检测转染率。
结果与结论:①电压自125 V至150 V,转染率呈现递增趋势,150 V时获得最大转染率,但将电压进一步调高至170 V,转染率开始显著降低;②脉冲时长为5.0 ms时获得最大转染率;脉冲时长为2.5 ms和7.5 ms时转染效率均有所降低;③与低氧培养比较,正常培养的细胞转染率更高;④结果表明,正常培养的脐带华通胶间充质干细胞在电压150 V、脉冲时长5.0 ms、脉冲间隔时间50 ms、脉冲数2次时可达到较高的电转染率。

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
ORCID: 0000-0001-7316-7168(王泽)

关键词: 电穿孔, 电转染, 华通胶间充质干细胞, 华通胶, 低氧培养, 干细胞, 国家自然科学基金

Abstract:

BACKGROUND: Wharton’s Jelly-derived mesenchymal stem cells are relatively primitive stem cells that are ideal vectors for gene therapy. However, there is a lack of studies on the conditions for the electrotransfection of Wharton’s Jelly-derived mesenchymal stem cells. Therefore, exploring the optimal conditions for the electrotransfection of Wharton’s Jelly-derived mesenchymal stem cells occupies an important position.
OBJECTIVE: To investigate the effects of different electroporation conditions on the transfection efficiency of Wharton’s Jelly-derived mesenchymal stem cells, and to explore the optimal conditions for cell electroporation.
METHODS: By controlling the transfection conditions such as voltage, pulse duration and cell status, EEV-EGFP plasmids were transfected into Wharton’s Jelly-derived mesenchymal stem cells by electroporation under different conditions. Transfection efficiency was detected by flow cytometry.
RESULTS AND CONCLUSION: (1) The transfection efficiency was intended to increase when the voltage ranged from 125 V to 150 V, and the maximum transfection efficiency was obtained when the voltage was 150 V. However, when the voltage was further increased to 170 V, the transfection efficiency began to decrease considerably. (2) The maximum transfection efficiency was obtained when the pulse duration was 5.0 ms, while it was certainly decreased when the pulse duration was 2.5 and 7.5 ms. (3) The transfection efficiency of the cells cultured under normoxia was higher than that under hypoxic culture. These findings reveal that normally cultured Wharton’s Jelly-derived mesenchymal stem cells can achieve higher electroporation efficiency via two pulse sessions at a voltage of 150 V, pulse duration of 5.0 ms, and pulse interval time of 50 ms.

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

Key words: Umbilical Cord, Mesenchymal Stem Cells, Transfection, Tissue Engineering

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