中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (5): 755-759.doi: 10.3969/j.issn.2095-4344.2017.05.017

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

人胎盘来源间充质干细胞的生物学性能及体外生物相容性

伍  佳1,温永梅1,吕欣荣1,牟雁东1,2   

  1. 1西南医科大学,四川省泸州市  646000
    2四川省人民医院,四川省成都市  610000
  • 出版日期:2017-02-18 发布日期:2017-03-20
  • 通讯作者: 牟雁东,教授,西南医科大学,四川省泸州市 646000 ;四川省人民医院,四川省成都市 610000
  • 作者简介:伍佳,女,1990年生,四川省遂宁市人,汉族,西南医科大学在读硕士,医师,主要从事口腔种植修复研究。
  • 基金资助:

    四川省科技厅项目(2016TD0008,2014JY0187)

Biological characterization and in vitro biocompatibility of human placenta derived mesenchymal stem cells

Wu Jia1, Wen Yong-mei1, Lv Xin-rong1, Mu Yan-dong1, 2   

  1. 1Southwest Medical University, Luzhou 646000, Sichuan Province, China
    2Sichuan Provincial People’s Hospital, Chengdu 610000, Sichuan Province, China
  • Online:2017-02-18 Published:2017-03-20
  • Contact: Mu Yan-dong, Professor, Southwest Medical University, Luzhou 646000, Sichuan Province, China; Sichuan Provincial People’s Hospital, Chengdu 610000, Sichuan Province, China
  • About author:Wu Jia, Studying for master’s degree, Physician, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

    the Projects of Sichuan Provincial Science and Technology Department, No. 2016TD0008, 2014JY0187

摘要:

文章快速阅读:

文题释义:
细胞连接:
在多细胞生物体内,细胞与细胞之间通过细胞膜相互联系,形成一个密切相关,彼此协调一致的统一体,称为细胞连接。对于维持组织的完整性非常重要,有的还具有细胞通讯作用。
细胞黏附:在细胞识别的基础上,同类细胞发生聚集形成细胞团或组织的过程叫细胞黏附。它对于胚胎发育及成体的正常结构和功能都有重要的作用。在发育过程中,由于细胞间细胞黏着的强度不同,决定着细胞在内、中、外三胚层的分布。在器官形成过程中,通过细胞黏着,使具有相同表面特性的细胞聚集在一起形成器官。

 

摘要
背景:
目前作为骨组织工程的种子细胞主要是骨髓间充质干细胞,但其在骨髓中的含量极低,只有0.001%-0.01%,同时分离纯化难度大。
目的:探讨人胎盘来源间充质干细胞的生物学性能及与三维多孔羟基磷灰石陶瓷支架的生物相容性。
方法:人胎盘来源间充质干细胞进行形态学观察和流式细胞仪鉴定;将人胎盘来源间充质干细胞经成骨、成脂、成软骨诱导分化培养3周,进行茜素红S、油红O、甲苯胺蓝染色,鉴定其多向分化潜能。将人胎盘来源间充质干细胞接种于三维多孔羟基磷灰石陶瓷支架,通过DAPI染色、扫描电镜观察人胎盘来源间充质干细胞在支架表面的黏附情况。
结果与结论:①人胎盘来源间充质干细胞呈长梭形,大小均匀一致;②人胎盘来源间充质干细胞高表达CD29,CD90等干细胞表面标志,不表达CD45,CD106等造血细胞表面标志;③诱导培养3周后,茜素红S染色可以看到红色的矿化结节,油红O染色观察到红色的脂滴,甲苯胺蓝染色可以看到软骨细胞染成蓝色;④DAPI染色、扫描电镜均观察到人胎盘来源间充质干细胞在支架表面能很好地黏附,可以作为组织工程良好的种子细胞。

 

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:
0000-0002-5024-6557(伍佳)

关键词: 干细胞, 分化, 胎盘间充质干细胞, 流式细胞仪, 多向分化潜能, 羟基磷灰石陶瓷支架, 生物相容性

Abstract:

BACKGROUND: At present bone marrow mesenchymal stem cells act as the main seed cells in bone tissue engineering, but only 0.001%-0.01% cells are in the bone with difficulty in cell separation and purification.
OBJECTIVE: To explore the biological characterization of human placenta derived mesenchymal stem cells and  biocompatibility with three-dimensional porous hydroxyapatite ceramic scaffold.
METHODS: Human placenta derived mesenchymal stem cells were morphologically observed and identified using flow cytometry, followed by osteogenic, adipogenic, chondrogenic induction for 3 weeks. Afterwards, the potential of multi-directional differentiation was identified by alizarin red S, oil red O and toluidine blue staining. DAPI staining was used to observe the adhesion of cells on the surface of the hydroxyapatite ceramic scaffold under scanning electron microscope.
RESULTS AND CONCLUSION: The human placenta derived mesenchymal stem cells showed long spindle shape and uniform size under the microscope; they highly expressed CD29 and D90, but did not express CD45 and CD106. Following induction, mineralized nodules were observed by alizarin red S staining, lipid droplets by oil red O staining and blue-dyed toluidine blue staining. These cells adhered well to the scaffold surface, indicting they are suitable 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

Key words: Placenta, Mesenchymal Stem Cells, Hydroxyapatites, Cell Adhesion, Tissue Engineering

中图分类号: