中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (1): 122-127.doi: 10.3969/j.issn.2095-4344.2017.01.022

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

体外定向诱导人羊膜间充质干细胞向骨、软骨及脂肪细胞的分化

李豫皖,朱喜忠,金  瑛,王胜民,杨继滨,熊华章,邹  刚,刘  毅   

  1. 遵义医学院附属医院骨科,贵州省遵义市  563000
  • 出版日期:2017-01-08 发布日期:2017-03-15
  • 通讯作者: 刘毅,教授,硕士生导师,遵义医学院附属医院骨科,贵州省遵义市 563000
  • 作者简介:李豫皖,男,1991年生,安徽省蚌埠市人,汉族,遵义医学院在读硕士,主要从事干细胞与组织工程,运动医学的研究。
  • 基金资助:

    贵州省科学技术基金资助项目(黔科合SY字[2010]3091)

Directional differentiation of human amniotic mesenchymal stem cells into osteoblasts, chondrocytes and lipocytes in vitro

Li Yu-wan, Zhu Xi-zhong, Jin Ying, Wang Sheng-min, Yang Ji-bin, Xiong Hua-zhang, Zou Gang, Liu Yi   

  1. Department of Orthopedics, the Affiliated Hospital of Zunyi Medical College, Zunyi 563000, Guizhou Province, China
  • Online:2017-01-08 Published:2017-03-15
  • Contact: Liu Yi, Professor, Master’s supervisor, Department of Orthopedics, the Affiliated Hospital of Zunyi Medical College, Zunyi 563000, Guizhou Province, China
  • About author:Li Yu-wan, Studying for master’s degree, Department of Orthopedics, the Affiliated Hospital of Zunyi Medical College, Zunyi 563000, Guizhou Province, China
  • Supported by:

    the Science & Technology Program of Guizhou Province, No. SY [2010]3091

摘要:

文章快速阅读:

文题释义:
流式细胞术:
是20世纪70年代发展起来的高科学技术,集计算机技术、激光技术、流体力学、细胞化学、细胞免疫学于一体,同时具有分析和分选细胞功能。它不仅可测量细胞大小、内部颗粒的性状,还可检测细胞表面和细胞浆抗原、细胞内DNA、RNA含量等,可对群体细胞在单细胞水平上进行分析, 在短时间内检测分析大量细胞,并收集、储存和处理数据,进行多参数定量分析; 能够分类收集(分选)某一亚群细胞,分选纯度> 95%。在血液学、免疫学、肿瘤学、药物学、分子生物学等学科广泛应用。

 

摘要
背景:
人羊膜间充质干细胞属于成体干细胞,在体外不同条件下诱导分化为骨、软骨及其他结缔组织,较其他类型间充质干细胞,因其来源广泛,分离无创伤,较低的免疫原性、生长周期短等特点,是组织工程种子细胞的重要来源。
目的:探讨人羊膜间充质干细胞是否具有间充质干细胞特性及诱导成骨、软骨及脂肪细胞诱导分化的能力。
方法:取足月产胎盘羊膜组织,酶消化法分离人羊膜间充质干细胞,取第3代细胞分别加入成骨、成软骨及成脂诱导液的培养基进行诱导。
结果与结论:①茜素红染色显示,成骨诱导后细胞存在多个矿化结节,细胞中碱性磷酸酶活性明显增加;②甲苯胺蓝染色显示,成软骨诱导后细胞基质中分泌大量的糖胺聚糖;③油红O染色显示,成脂诱导后,细胞浆内可见脂滴;④实时荧光PCR结果显示,成骨、成软骨及成脂诱导21 d后,相关基因表达较7 d时明显增高;⑤结果人羊膜间充质干细胞具有向成骨细胞,软骨细胞及脂肪细胞的潜能,可选作为组织工程学的种子细胞。

 

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
ORCID:
0000-0002-8116-604X(刘毅)

关键词: 干细胞, 分化, 人羊膜间充质干细胞, 成骨细胞, 成软骨细胞, 成脂细胞, 体外诱导

Abstract:

BACKGROUND: Human amniotic mesenchymal stem cells (hAMSCs) are a kind of adult stem cells that can differentiate into osteocytes, chondrocytes and lipocytes under different conditions in vitro. Compared with other mesenchymal stem cells (MSCs), hAMSCs have many advantages like wide source, noninvasive isolation, low immunogenicity and short growth cycle, making hAMSCs an important source of seed cells in tissue engineering.
OBJECTIVE: To investigate whether hAMSCs have the characteristics of MSCs and the ability of differentiation 
into osteoblasts, chondrocytes and lipocytes.
METHODS: Agreed by patients, the amniotic membrane from partus maturus parturients was separated, and hAMSCs were isolated by enzyme digestion. Passage 3 cells were cultured in osteogenic, chondrogenic or adipogenic medium induction.
RESULTS AND CONCLUSION: The alizarin red staining results showed multiple mineralized nodules after osteogenic induction, and the activity of alkaline phosphatase was significantly increased after induction. The toluidine blue staining showed positive results after chondrogenic induction, and a large amount of glycosaminoglycans were secreted from the cell matrix. After adipogenic differentiation, lipid droplets were observed in the cytoplasm of the cells shown by the oil red O staining. Real-time PCR results showed the mRNA expressions of relative genes at day 21 after osteogenic, chondrogenic and adipogenic induction upregulated significantly compared with the results at day 7 (P < 0.05). These experimental results demonstrate that hAMSCs have the basic characteristics of MSCs and possess the potential of differentiation into osteoblasts, chondrocytes and lipocytes, which could be selected as the seed cells for 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

Key words: Cell Differentiation, Amnion, Tissue Engineering

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