中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (41): 7199-7204.doi: 10.3969/j.issn.2095-4344.2013.41.003

• 骨组织构建 bone tissue construction • 上一篇    下一篇

新生大鼠成骨细胞原代培养与鉴定

程  浩1,张延芳1,许  巍2   

  1. 1广东医学院信息工程学院物理教研室,广东省东莞市  523808;2广西梧州制药(集团)股份有限公司,广西壮族自治区梧州市  543002
  • 收稿日期:2013-04-05 修回日期:2013-07-16 出版日期:2013-10-08 发布日期:2013-11-01
  • 通讯作者: 张延芳,博士,副教授,广东医学院信息工程学院物理教研室,广东省广州市 523808 zjzyf2006@163.com
  • 作者简介:程浩★,男,1986年生,山东省临沂市人,汉族,2013年广东医学院毕业,硕士,主要从事骨质疏松方面的研究。 chenghao712@163.com
  • 基金资助:

    东莞市医疗卫生重点课题(2012105102006)*;东莞市医疗卫生一般课题(201210515200001)*

Primary culture and identification of neonatal rat osteoblasts

Cheng Hao1, Zhang Yan-fang1, Xu Wei2   

  1. 1Department of Physics, School of Information Engineering, Guangdong Medical College, Guangzhou  523808, Guangdong Province, China; 2Guangxi Wuzhou Pharmaceutical (Group) Co., Ltd., Wuzhou  543002, Guangxi Zhuang Autonomous Region, China
  • Received:2013-04-05 Revised:2013-07-16 Online:2013-10-08 Published:2013-11-01
  • Contact: Zhang Yan-fang, M.D., Associate chief physician, Department of Physics, School of Information Engineering, Guangdong Medical College, Guangzhou 523808, Guangdong Province, China zjzyf2006@163.com
  • About author:Cheng Hao★, Master, Department of Physics, School of Information Engineering, Guangdong Medical College, Guangzhou 523808, Guangdong Province, China chenghao712@163.com
  • Supported by:

    Key Medical and Health Project of Dongguan, No. 2012105102006*; General Medical and Health Project of Dongguan Ctiy, No. 201210515200001*

摘要:

背景:组织工程需要大量的种子细胞,成骨细胞是骨组织工程的重要种子细胞之一。但是成骨细胞培养难度大,不同培养方法得到的成骨细胞数量、纯度、增殖及分化活性各有区别。
目的:验证及比较成骨细胞原代培养常用的3种方法,探索一种操作简便,既经济又高效的原代培养成骨细胞的方法,为进一步的实验研究奠定基础。
方法:取新出生72 h 内SD大鼠乳鼠颅骨,以胶原酶消化法、分段胶原酶消化法及组织块法分离成骨细胞,进行细胞形态观察、细胞化学染色、CCK-8法绘制生长曲线及锥虫蓝排斥法计数活细胞率。
结果与结论:分离培养的成骨细胞增殖良好,具备典型成骨细胞特性,细胞化学染色结果明显。胶原酶消化法比分段胶原酶消化法提取的成骨细胞数量多,细胞存活率高(P < 0.05);且比分段胶原酶消化法操作简单,耗时短。组织块法操作最为简单,对细胞损伤较小,但是细胞数量低、耗时长,很难用于大规模成骨细胞培养。胶原酶消化法是一种方便、高效、理想的原代成骨细胞分离培养方法。

关键词: 组织构建, 骨组织构建, 成骨细胞, 原代培养, 胶原酶消化法, 组织块法, 胶原酶, 成骨细胞鉴定

Abstract:

BACKGROUND: Tissue engineering requires a lot of seed cells. Osteoblasts have become important seed cells in bone tissue engineering. However, it is difficult to culture the osteoblasts, and cell number, purity, proliferation and differentiation activity are different obtained by different culture methods.
OBJECTIVE: To identify and compare three common primary osteoblat culture methods, and to explore a method for the primary culture of osteoblasts which is easy to operate, economical and effective, in order to provide basis for the further experimental research.  
METHODS: Calvarias were dissected from newborn Sprague Dawley rats in 72 hours, and osteoblasts were isolated with collagenase digestion method, sequential digestion method and bone tissue method respectively. The morphological observation and cytochemical staining were performed, the growth curve of the cells was drawn with Cell Counting Kit-8 method, and the rate of living osteobalsts was counted with trypan blue staining.
RESULTS AND CONCLUSION: The proliferation of the insolated and cultured osteoblasts was well with typical characteristics of osteoblasts, cytochemical staining results were positive. Compared with the sequential collagenase digestion method, the collagenase digestion method presented higher production of osteoblasts and higher cell survival rate (P < 0.05), and the collagenase digestion method was easier than the sequential collagenase digestion method and cost less than sequential collagenase digestion method. Bone tissue method was the easiest method with less damage to cells, but bone tissue method presented lower production of osteoblasts and cost much more time, which cannot be used in large-scale osteoblast culture. The collagenase digestion method is a simple, efficient and ideal method for isolation and culture of primary osteoblasts.

Key words: rats, skull, esteoblasts, cell culture techniques, cell proliferation, growth charts

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