中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (1): 24-29.doi: 10.3969/j.issn.2095-4344.2015.01.005

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

三维培养诱导人脂肪间充质干细胞微球的成软骨分化能力

毕晓娟1,郭晨明2,李  亮1,段显琳3,江  明1,3   

  1. 1新疆医科大学第一附属医院临床医学研究院干细胞研究室,新疆医科大学基础医学院生物化学与分子生物学教研室,新疆维吾尔自治区乌鲁木齐市  830054;新疆医科大学第一附属医院,2乳腺外科,3血液病中心、新疆维吾尔自治区血液病研究所,新疆维吾尔自治区乌鲁木齐市  830054
  • 修回日期:2014-12-08 出版日期:2015-01-01 发布日期:2015-01-01
  • 通讯作者: 江明,硕士,主任医师,教授,博士生导师,新疆医科大学第一附属医院临床医学研究院干细胞研究室、新疆医科大学第一附属医院血液病中心、新疆维吾尔自治区血液病研究所,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:毕晓娟,1983年生,新疆维吾尔自治区人,汉族,2007年新疆医科大学毕业,助理研究员,主要从事究脂肪源间充质干细胞研究。
  • 基金资助:

    新疆医科大学第一附属医院组织工程专项基金(2012ZZGC04)

Three-dimensional culture method induces the chondrogenic differentiation of human adipose-derived mesenchymal stem cell microspheres

Bi Xiao-juan1, Guo Chen-ming2, Li Liang1, Duan Xian-lin3, Jiang Ming1, 3   

  1. 1Stem Cell Laboratory, Clinical Medicine Research Institute, the First Affiliated Hospital of Xinjiang Medical University, Department of Biochemistry, Preclinical Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 2Department of Breast Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 3Hematologic Disease Center, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Research Institute of Hematology, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Revised:2014-12-08 Online:2015-01-01 Published:2015-01-01
  • Contact: Jiang Ming, Master, Chief physician, Professor, Doctoral supervisor, Stem Cell Laboratory, Clinical Medicine Research Institute, the First Affiliated Hospital of Xinjiang Medical University, Department of Biochemistry, Preclinical Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; Hematologic Disease Center, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Research Institute of Hematology, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Bi Xiao-juan, Assistant researcher, Stem Cell Laboratory, Clinical Medicine Research Institute, the First Affiliated Hospital of Xinjiang Medical University, Department of Biochemistry, Preclinical Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Special Fund for Tissue Engineering in the First Affiliated Hospital of Xinjiang Medical University, No. 2012ZZGC04

摘要:

背景:关节软骨损伤后修复结果不满意,需要新的手段,而脂肪间充质干细胞较适宜做种子细胞诱导软骨,然而怎么能够使诱导的软骨具有功能需要研究。
目的:采用三维培养体系诱导人脂肪间充质干细胞微球向软骨分化。
方法:无菌切取吸脂术后脂肪组织,分离培养人脂肪间充质干细胞,传至第3代进行流式细胞术分析,成骨成脂肪诱导等鉴定,同时也给予合适的培养条件用三维培养的方式向软骨细胞诱导,并行阿利辛蓝染色鉴定糖胺多糖的合成,苏木精-伊红染色进行组织学分析,免疫荧光检测Ⅱ型胶原表达,称质量测量软骨硬度。
结果与结论:分离的人脂肪间充质干细胞CD105,CD44,CD29均高表达,而 CD45,CD34低表达,并且成骨成脂诱导后细胞茜素红染色和油红O染色均为阳性。三维培养法诱导的软骨细胞可表达大量糖胺多糖及Ⅱ型胶原。结果证实,三维培养法诱导人脂肪间充质细胞向软骨分化后,具有软骨细胞的特性。


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, 三维培养体系, 软骨微球, 诱导分化, 间充质干细胞, 脂肪源间充质干细胞, 人脂肪间充质干细胞, 无支架微球, 培养条件优化, 软骨诱导

Abstract:

BACKGROUND: Adipose-derived mesenchymal stem cells are more appropriate as seed cells for cartilage induction in patients who have unsatisfied repair after articular cartilage injuries, but how to induce the cartilage function need to be studied.
OBJECTIVE: To induce the chondrogenic differentiation of human adipose-derived mesenchymal stem cell microspheres using three-dimensional culture system.
METHODS: Adipose tissues were extracted after liposuction under sterile, to isolate and culture human adipose-derived mesenchymal stem cells. The third passage cells were analyzed by flow cytometry and identified by osteogenic induction and adipogenic induction, and meanwhile, cells were cultured under three-dimensional culture system for chondrogenic differentiation. Then, cells were observed by Alcian blue staining for identification of glycosaminoglycan synthesis as well as hematoxylin-eosin staining for histological analysis. Expression of collagen type II was detected by immunofluorescence method. Cartilage stiffness was determined by mass measurement.
RESULTS AND CONCLUSION: Isolated human adipose-derived mesenchymal stem cells highly expressed CD105, CD44, CD29, but showed low expressions of CD45, CD34. After osteogenic and adipogenic induction, cells were positive for alizarin red staining and oil red O staining. Under the three-dimensional culture, chondrocytes could greatly express glycosaminoglycans and collagen type II. The results suggest that under the three-dimensional culture, human adipose-derived mesenchymal cells differentiate into chondrocytes and have the characteristics of chondrocytes.


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: Tissue Engineering, Stem Cells, Mesenchymal Stem Cells, Cartilage

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