中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (16): 2961-2967.doi: 10.3969/j.issn.2095-4344.2013.16.016

• 细胞外基质材料 extracellular matrix materials • 上一篇    下一篇

胶原支架上体外三维培养成年大鼠心肌细胞

王慧玲1,李  琼1,郭志坤1,孙永琨2,Kuboki Y2   

  1. 1新乡医学院河南省医用组织再生重点实验室,河南省新乡市  453003
    2日本北海道大学,日本
  • 收稿日期:2012-07-24 修回日期:2012-09-02 出版日期:2013-04-16 发布日期:2013-04-16
  • 通讯作者: 郭志坤,博士,教授,新乡医学院,河南省新乡市 453003
  • 作者简介:王慧玲★,1985年生,河南省商丘市人,汉族,新乡医学院在读硕士,主要从事心肌组织工程研究。mcolourful@126.com
  • 基金资助:

    河南省21世纪优秀人才支持计划(2005H ANCET215);河南省重点攻关项目(072102310012)资助。

Collagen scaffold facilitates the three-dimensional culture of myocardial cells from adult rats in vitro

Wang Hui-ling1, Li Qiong1, Guo Zhi-kun1, Sun Yong-kun2, Kuboki Y2   

  1. 1 Key Laboratory for Medical Tissue Regeneration of Henan Province, Xinxiang Medical University, Xinxiang  453003, Henan Province, China
    2 Hokkaido University, Hokkaido, Japan
  • Received:2012-07-24 Revised:2012-09-02 Online:2013-04-16 Published:2013-04-16
  • Contact: Guo Zhi-kun, Doctor, Professor, Key Laboratory for Medical Tissue Regeneration of Henan Province, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
  • About author:Wang Hui-ling★, Studying for master’s degree, Key Laboratory for Medical Tissue Regeneration of Henan Province, Xinxiang Medical University, Xinxiang 453003, Henan Province, China mcolourful@126.com
  • Supported by:

    an Province, No. 2005HANCET215*; the Tackle Key Program of Henan Province, No. 072102310012*

摘要:

背景:前期研究中已经在Atelocollagen胶原支架培养出了具有收缩功能的乳鼠心肌细胞。
目的:在Atelocollagen胶原支架上三维培养成年大鼠心肌细胞。
方法:将成年SD大鼠心肌细胞经消化培养并纯化后,种植到Atelocollagen胶原支架上进行三维培养。应用倒置显微镜动态观察心肌细胞在Atelocollagen胶原支架上的生长状况;对三维培养的心肌细胞块进行冰冻切片,分别进行肌钙蛋白免疫组织化学和免疫荧光显色,对支架上生长的细胞进行鉴定。
结果与结论:成年SD大鼠心肌细胞接种12 h开始贴附支架生长,24 h与支架汇合、紧密黏附,但心肌细胞并不产生自律性搏动,细胞之间夹杂少量崩解的细胞碎片;48 h换液后支架网孔中崩解的细胞被换掉,剩下大部分细胞贴附在支架壁边缘生长。苏木精-伊红染色显示培养48 h细胞与支架形成复合体。形态学鉴定证明支架网孔中生长的主要是心肌细胞。免疫组织化学和免疫荧光显色均显示在支架内生长的大部分是心肌细胞,并且紧贴支架,生长良好。

关键词: 生物材料, 细胞外基质材料, 胶原支架, 心肌细胞, 三维培养, 免疫组织化学, 免疫荧光, 成年大鼠, 省级基金

Abstract:

BACKGROUND: Three-dimensional contractible myocardial cell block of neonatal rats in the Atelocollagen scaffold has been cultured in the previous study.
OBJECTIVE: To perform three-dimensional culture of myocardial cells from adult rats on the Atelocollagen scaffold.
METHODS: After being cultured and purified, myocardial cells from adult Sprague-Dawley rats were implanted onto the Atelocollagen scaffold for three-dimensional cultures. The growth of myocardial cells on the Atelocollagen scaffold was dynamically observed by inverted microscopy. Myocardial cell blocks were separately tested by hematoxylin-eosin staining, immunohistochemistry and immunofluorecence of troponin after frozen section.
RESULTS AND CONCLUSION: After being implanted, myocardial cells from adult Sprague-Dawley rats began to grow on the Atelocollagen scaffold in 12 hours, showed mutual integration with the scaffold and the integration became more closely 24 hours later. However, the myocardial cells did not have autorhythmiciting beats at all, and among the cells there were some cell debris. After replaced with the same fresh medium 48 hours later, the cell debris was washed away and most of the rest cells grew on the edge of the Atelocollagen scaffold. After 48 hours, the cells formed a complex with the scaffold tested by hematoxylin-eosin staining, and the cells which grew well and were coalesced with the scaffold meshes were mainly myocardial cells, identified by immunohistochemistry and immunofluorecence.

Key words: biomaterials, extracellular matrix materials, collagen scaffold, myocardial cells, three-dimensional culture, immunohistochemistry, immunofluorecence, adult rats, provincial grants-supported paper

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