中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (19): 2987-2992.doi: 10.3969/j.issn.2095-4344.2014.19.006

• 脂肪干细胞 adipose-derived stem cells • 上一篇    下一篇

成人脂肪间充质干细胞的定向成骨诱导

郭艳萍1,2,陶常波2,张爱君2,李雪阳2,沈才齐2,李政道3,金培生2   

  1. 1徐州医学院研究生院,江苏省徐州市  221000
    2徐州医学院附属医院整形外科,江苏省徐州市  221000
    3政道干细胞实验室,江苏省徐州市  221000
  • 修回日期:2014-03-05 出版日期:2014-05-07 发布日期:2014-05-07
  • 通讯作者: 金培生,博士,教授,主任医师,徐州医学院附属医院整形外科,江苏省徐州市 221000
  • 作者简介:郭艳萍,1987年生,湖北省恩施市人,土家族, 2011年徐州医学院毕业,硕士,主要从事整形外科脂肪干细胞组织工程方面的研究。
  • 基金资助:

    江苏省科教兴卫重点人才资助项目(RC2011115)

Osteogenic induction of human adipose-derived stem cells

Guo Yan-ping1, 2, Tao Chang-bo2, Zhang Ai-jun2, Li Xue-yang2, Shen Cai-qi2, Li Zheng-dao3, Jin Pei-sheng2   

  1. 1Graduate School of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China
    2Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China
    3Zhengdao Stem Cell Laboratory, Xuzhou 221000, Jiangsu Province, China
  • Revised:2014-03-05 Online:2014-05-07 Published:2014-05-07
  • Contact: Jin Pei-sheng, M.D., Professor, Chief physician, Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China
  • About author:Guo Yan-ping, Master, Graduate School of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China; Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China
  • Supported by:

    Key Provincial Talents Program of Jiangsu Province, No. RC2011115

摘要:

背景:脂肪分离可获得大量的间充质干细胞并成功向骨、软骨、脂肪、心肌等多个方向诱导分化。
目的:建立成人脂肪间充质干细胞体外分离培养、成骨分化方法,并探讨脂肪间充质干细胞作为骨组织工程的种子细胞的前景。
方法:通过胶原酶消化法从成人脂肪中分离间充质干细胞,进行体外培养,流式细胞仪检测细胞表面标记物,CCK8检测细胞活性,成骨诱导液诱导干细胞向骨细胞分化,BCIP/NBT比色法染色检测碱性磷酸酶,茜素红染色检测钙结节形成,RT-PCR检测碱性磷酸酶,骨桥蛋白表达变化。
结果与结论:利用脂肪抽吸液成功培养出脂肪间充质干细胞,且能稳定传代,增殖能力旺盛;流式细胞仪检测证实有特定的间充质干细胞表面标记物表达;成骨诱导脂肪间充质干细胞后呈典型的成骨细胞形态;碱性磷酸酶染色阳性,茜素红染色后可见钙结节形成,成骨诱导培养0,3,7,14,21,28 d,RT-PCR定量检测结果证实碱性磷酸酶、骨桥蛋白阳性表达。说明用酶消化法可以从人脂肪中分离得到脂肪间充质干细胞;脂肪间充质干细胞可向骨细胞诱导分化,阳性表达骨桥蛋白,碱性磷酸酶,是一种优良的骨组织工程的种子细胞。


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


全文链接:

关键词: 干细胞, 脂肪干细胞, 培养, 诱导, 脂肪间充质干细胞, 成骨分化, 组织工程骨, 颅骨缺损, 碱性磷酸酶, 骨桥蛋白

Abstract:

BACKGROUND: A great amount of mesenchymal stem cells can be successfully derived from fat tissue and induced to differentiate into osteoblasts, chondrocytes, adipocytes and myocardial cells.
OBJECTIVE: To establish the method of isolating, culturing and osteogenic differentiation of adipose-derived stem cells in vitro, and to explore the potential of adipose-derived stem cells as seed cells for bone tissue engineering.
METHODS: Collagenase enzymatic digestion was used to isolate adipose-derived stem cells from human fat tissue which were then cultured in vitro. Flow cytometry was used to detect cell surface markers. Cell counting kit-8 assay was performed to examine cell viability. Adipose-derived stem cells were induced by osteogenic induced reagent to differentiate into bone cells. In addition, we also performed BCIP/NBT method to detect alkaline phosphatase activity. Alizarin red staining was used to detect the formation of calcium node. RT-PCR was performed to examine alkaline phosphatase and osteopontin expression.
RESULTS AND CONCLUSION: We successfully obtained adipose-derived stem cells from fat aspirated liquid. Adipose-derived stem cells obtained could passage stably and proliferate highly. Flow cytometry data showed the expression of stem cell surface markers. Adipose-derived stem cells showed typical osteoblast morphology after osteogenic differentiation. Alkaline phosphatase staining was positive and alizarin red staining displayed the formation of calcium node. Furthermore, we found that alkaline phosphatase and osteopontin mRNA was expressed after differentiation 0, 3, 7, 14, 21, 28 days. These findings indicate that adipose-derived stem cells can be obtained from fat tissue through enzymatic digestion, differentiate towards bone cells, and express alkaline phosphatase and osteopontin, which can become potential seed cells for bone tissue engineering.


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


全文链接:

Key words: stem cells, mesenchymal stem cells, subcutaneous fat, osteoblasts, osteopontin

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