中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (21): 3382-3387.doi: 10.3969/j.issn.2095-4344.2017.21.017

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

腺病毒载体携带标记基因EGFP转染人羊膜上皮细胞

金 玲1,刘小勇2,徐 玮2,郝晓宁1,牛静宜1,王乙婷1,曹端荣1   

  1. 1深圳市宝安人民医院眼科,广东省深圳市 518101;2暨南大学附属第一医院眼科,广东省广州市  510630
  • 修回日期:2017-06-09 出版日期:2017-07-28 发布日期:2017-08-02
  • 通讯作者: 金玲,博士,副主任医师,深圳市宝安人民医院眼科,广东省深圳市 518101
  • 作者简介:金玲,女,1976年生,湖北省十堰市人,汉族,2009年暨南大学眼科学毕业,博士,副主任医师,主要从事眼科眼表疾病和白内障的基础和临床研究。 并列第一作者:刘小勇,男,1973年生,湖北省黄冈市人,汉族,2015年暨南大学眼科学毕业,博士,副主任医师,主要从事眼科眼表疾病的基础和临床研究。
  • 基金资助:

    国家自然科学基金项目(30872808,81100637);广东省医学科学技术研究基金项目(201512902216517);广东省科技计划项目(2015A020212026);广东省中医药局科研项目(20162044);深圳市科技计划基金项目(JCYJ20140414105820176, CXZZ20140418182638764)

Human amniotic epithelial cells transfected by enhanced green fluorescent protein gene mediated by adenovirus vector

Jin Ling1, Liu Xiao-yong2, Xu Wei2, Hao Xiao-ning1, Niu Jing-yi1, Wang Yi-ting1, Cao Duan-rong1   

  1. 1Department of Ophthalmology, People’s Hospital of Baoan, Shenzhen 518101, Guangdong Province, China; 2Department of Ophthalmology, Affiliated First Hospital of Jinan University, Guangzhou 510632, Guangdong Province, China
  • Revised:2017-06-09 Online:2017-07-28 Published:2017-08-02
  • Contact: Jin Ling, Department of Ophthalmology, People’s Hospital of Baoan, Shenzhen 518101, Guangdong Province, China
  • About author:Jin Ling, M.D., Associate chief physician, Department of Ophthalmology, People’s Hospital of Baoan, Shenzhen 518101, Guangdong Province, China. Liu Xiao-yong, M.D., Associate chief physician, Department of Ophthalmology, Affiliated First Hospital of Jinan University, Guangzhou 510632, Guangdong Province, China. Jin Ling and Liu Xiao-yong contributed equally to this work.
  • Supported by:

    the National Natural Science Foundation of China, No. 30872808, 81100637; the Medical Science and Technology Research Foundation of Guangdong Province, No. 201512902216517; the Science and Technology Plan Project of Guangdong Province, No. 2015A020212026; the Scientific Research Project of Guangdong Provincial Administration of Traditional Chinese Medicine, No. 20162044; the Science and Technology Plan Project of Shenzhen City, No. JCYJ20140414105820176, CXZZ20140418182638764

摘要:

文章快速阅读:

文题释义:
腺病毒载体:
典型的腺病毒载体系统包括穿梭质粒、腺病毒基因组质粒和包装细胞293细胞,其转基因效率高,可转染不同类型的人组织细胞,不受靶细胞是否为分裂细胞所限,且容易制得高滴度病毒载体,其进入细胞内并不整合到宿主细胞基因组,仅瞬间表达,安全性高,是目前广泛应用且最具前景的病毒载体。因而,实验选择腺病毒载体介导EGFP基因转染人羊膜上皮细胞。
细胞周期:是指细胞从一次分裂完成开始到下一次分裂结束所经历的全过程,分为间期与分裂期2个阶段,间期又分为3期,即DNA合成前期(G1期)、DNA合成期(S期)与DNA合成后期(G2期),细胞分裂期即M期,间期是细胞合成DNA、RNA、蛋白质和各种酶的关键时期,是为细胞分裂准备物质基础的主要阶段,通过检测细胞周期可判断细胞为周期性细胞、终端分化细胞或暂不增殖细胞群。

 

摘要
背景:
人羊膜上皮细胞具有干细胞的某些性能,可诱导分化为角膜样上皮细胞,但在体外培养时无法示踪,不能有效地监测其细胞转归。
目的:探讨利用腺病毒载体将标记基因EGFP转染入人羊膜上皮细胞的可行性及感染效率。
方法:pDC316-mCMV-EGFP腺病毒包装后,腺病毒载体携带标记基因EGFP转染体外培养的人羊膜上皮细胞,并扩增培养,观察转染后人羊膜上皮细胞与未转染人羊膜上皮细胞的形态差异,并在荧光显微镜下观察转染基因的表达,用流式细胞仪检测转染细胞的细胞周期及EGFP阳性表达率。
结果与结论:①多数转染细胞筛选出的抗性克隆以及培养的克隆细胞与正常体外培养的人羊膜上皮细胞在形态上无显著差异;②瞬时转染后48 h的人羊膜上皮细胞中增强型绿色荧光蛋白阳性表达率最高达99.01%;③转染后的人羊膜上皮细胞的细胞周期有所减慢,说明利用腺病毒载体能将标记基因EGFP转染入人羊膜上皮细胞,可更直观地观察到人羊膜上皮细胞在体外的进一步转归。

 

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: 0000-0002-2163-9992(金玲)

关键词: 干细胞, 培养, 腺病毒, 绿色荧光蛋白, 人羊膜上皮细胞, 原代培养, 扩增培养, 基因转染, 转染效率, 细胞周期, 国家自然科学基金

Abstract:

BACKGROUND: Human amniotic epithelial cells have some properties of stem cells, which can be induced to differentiate into corneal epithelial cells, but cannot be traced in vitro.
OBJECTIVE: To investigate the feasibility and infection efficiency of adenovirus vector carrying enhanced green fluorescent protein (EGFP) into the human amniotic epithelial cells.
METHODS: The adenovirus vectors carrying EGFP was transferred into human amniotic epithelial cells cultured in vitro. After cultured and amplified, the morphology difference between transfected and non-transfected human amniotic epithelial cells was observed. The transfected human amniotic epithelial cells were observed under fluorescence microscope, and the cell cycle and the expression rate of EGFP in transfected human amniotic epithelial cells were detected by flow cytometry.
RESULTS AND CONCLUSION: No obvious difference in the cell morphology was found between transfected human amniotic epithelial cells and normal human amniotic epithelial cells cultured in vitro. Flow cytometry analysis revealed that the EGFP positive rate was highest and reached up to 99.01% at 48 hours after transient transfection. The cell cycle of human amniotic epithelial cells transfected by the adenovirus vector was slowed a bit. To conclude, the adenovirus vector is a good medium of transfecting EGFP into human amniotic epithelial cells, and makes it more convenient to observe the further transformation of human amniotic epithelial cells in vitro.

 

 

Key words: Adenoviridae Infections, Green Fluorescent Proteins, Amnion, Epithelial Cells, Cell Cycle, Tissue Engineering

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