中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (21): 3364-3370.doi: 10.3969/j.issn.2095-4344.1756

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

大鼠关节软骨来源祖细胞的分离鉴定及成软骨分化

沈 序1,陆英杰1,路冬冬1,方跃鹏1,周乃慧2,朱雪松1,朱月倩2   

  1. 苏州大学附属第一医院,1骨科,2皮肤科,江苏省苏州市 215006
  • 修回日期:2019-03-10 出版日期:2019-07-28 发布日期:2019-07-28
  • 通讯作者: 朱月倩,副主任医师,苏州大学附属第一医院皮肤科,江苏省苏州市 215006; 并列通讯作者:朱雪松,研究员,苏州大学附属第一医院骨科,江苏省苏州市 215006
  • 作者简介:沈序,男,1992年生,江苏省苏州市人,汉族,在读硕士,主要从事软骨组织工程研究。 并列第一作者:陆英杰,男,1992年生,江苏省昆山市人,汉族,2018年苏州大学毕业,硕士,医师,主要从事脊柱外科研究。
  • 基金资助:

    国家自然科学基金(81772358),项目负责人:朱雪松;国家自然科学基金(81703144),项目负责人:周乃慧;江苏省自然科学基金青年基金项目(BK20160350),项目负责人:朱月倩;国家重点研发计划(SQ2018YFA010178),项目参与人:朱雪松

Isolation, identification and chondrogenic differentiation of rat articular cartilage-derived progenitor cells

Shen Xu1, Lu Yingjie1, Lu Dongdong1, Fang Yuepeng1, Zhou Naihui2, Zhu Xuesong1, Zhu Yueqian2   

  1. 1Department of Orthopedics, 2Department of Dermatology, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
  • Revised:2019-03-10 Online:2019-07-28 Published:2019-07-28
  • Contact: Zhu Yueqian, Associate chief physician, Department of Dermatology, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China; Zhu Xuesong, Researcher, Department of Orthopedics, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
  • About author:Shen Xu, Master candidate, Department of Orthopedics, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China. Lu Yingjie, Master, Physician, Department of Orthopedics, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China. Shen Xu and Lu Yingjie contributed equally to this work.
  • Supported by:

    the National Natural Science Foundation of China, No. 81772358 (to ZXS) and 81703144 (to ZNH); the Natural Science Foundation of Jiangsu Province (the Youth Program), No. BK20160350 (to ZYQ); the National Key R&D Program of China, No. SQ2018YFA010178 (to ZXS)

摘要:

文章快速阅读:

文题释义:
关节软骨来源祖细胞:
是一种主要位于关节软骨表层的软骨细胞,占软骨细胞含量的0.1%-1%,同时具有间充质细胞和软骨细胞的特点。关节软骨来源祖细胞具有比其他间充质细胞更强的软骨分化能力,同时其成骨分化能力有限,是软骨组织工程的理想种子细胞。
纤连蛋白分选:纤连蛋白是从动物血清中提取的一种蛋白质,最早是将其铺板用于皮肤干细胞的分离提纯,后发现可通过纤连蛋白黏附从软骨细胞中获得一批具有强增殖能力的软骨来源祖细胞,其差异性黏附机制可能是由于软骨来源祖细胞表达更高水平的整合素α5和β1,可特异性地和纤连蛋白结合。

 

摘要
背景:
关节软骨来源祖细胞具有较强的软骨分化能力,同时其成骨分化能力有限,但是经过扩增后其细胞特性是否会发生改变及如何改变目前仍没有相关报道。
目的:观察不同代次关节软骨来源祖细胞增殖、成骨和成软骨能力的改变情况,并与骨髓间充质干细胞相比较。
方法:利用纤连蛋白分选从关节软骨细胞中获得关节软骨来源祖细胞。通过克隆形成实验和CCK-8实验观察关节软骨来源祖细胞增殖能力改变;通过茜素红染色和成骨相关基因表达观察关节软骨来源祖细胞和骨髓间充质干细胞成骨分化潜能的变化;通过Ⅱ型胶原免疫组化染色和成软骨相关基因表达观察关节软骨来源祖细胞和骨髓间充质干细胞成软骨分化潜能的变化。
结果与结论:①通过纤连蛋白分选可从关节软骨细胞中获得具有干细胞特性的关节软骨来源祖细胞,其具有较强增殖能力以及成骨、成软骨分化潜能;②CCK-8和克隆形成实验结果显示随着细胞代次的增加,关节软骨来源祖细胞增殖能力略有下降;③骨髓间充质干细胞具有较强的成骨分化潜能,并且随着细胞扩增未有明显改变,成软骨分化潜能随着细胞扩增逐渐降低;④关节软骨来源祖细胞具有较强的成软骨潜能,并且随着细胞扩增未有明显改变,成骨分化潜能随着细胞扩增逐渐降低;⑤结果表明,关节软骨来源祖细胞的成骨潜能明显低于骨髓间充质干细胞并且随着细胞扩增逐渐减低,成软骨潜能高于骨髓间充质干细胞并且随着细胞扩增成软骨能力未有明显改变,说明关节软骨来源祖细胞可能是一种更加理想的软骨组织工程种子细胞。


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:
0000-0003-3579-2741(朱雪松)

关键词: 关节软骨来源祖细胞, 骨髓间充质干细胞, 成骨潜能, 成软骨潜能, 软骨组织工程, 纤连蛋白分选, ;细胞增殖, 国家自然科学基金

Abstract:

BACKGROUND: Articular cartilage-derived progenitor cells have strong chondrogenic differentiation ability and limited osteogenic differentiation ability. However, it is unclear whether and how the cellular characteristics of articular cartilage-derived progenitor cells after amplification change.
OBJECTIVE: To observe the proliferation, osteogenesis and chondrogenesis ability of articular cartilage-derived progenitor cells in different generations as compared with bone marrow mesenchymal stem cells.
METHODS: Articular cartilage-derived progenitor cells were sorted from chondrocytes by using differential adhesion to fibronectin. Cell counting kit-8 and colony formation assay were used to observe the proliferative capacity of articular cartilage-derived progenitor cells. Osteogenic differentiation potential of articular cartilage-derived progenitor cells and bone marrow mesenchymal stem cells were measured by alizarin red staining and determination of osteogenic gene expression. Collagen II immunohistochemical staining and determination of chondrogenic-related gene expression were used to measure the change in the chondrogenic ability of articular cartilage-derived progenitor cells and bone marrow mesenchymal stem cells.
RESULTS AND CONCLUSION: Articular cartilage-derived progenitor cells sorted by fibronectin had strong proliferation ability, osteogenic and chondrogenic differentiation potential. The results of cell counting kit-8 and colony formation assay showed that articular cartilage-derived progenitor cells had a slight decrease in cell proliferation during cell expansion. Bone marrow mesenchymal stem cells presented with strong osteogenic potential throughout cell expansion, while the chondrogenic potential of the cells decreased gradually during cell expansion. Articular cartilage-derived progenitor cells had strong chondrogenic potential with no considerable change during cell expansion, while the osteogenic potential of the cells decreased gradually significantly during cell expansion. To conclude, the osteogenic potential of articular cartilage-derived progenitor cells was significantly lower than that of bone marrow mesenchymal stem cells, and it gradually decreased during cell expansion. The chondrogenic potential of articular cartilage-derived progenitor cells was higher than that of bone marrow mesenchymal stem cells, but there was no significant change during cell expansion. These findings indicate that articular cartilage-derived progenitor cells may be an ideal kind of seed cells for cartilage tissue engineering.

Key words: articular cartilage-derived progenitor cells, bone marrow mesenchymal stem cells, osteogenic potential, chondrogenic potential, cartilage tissue engineering, fibronectin sorting, cell proliferation, National Natural Science Foundation of China

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