中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (11): 1544-1560.doi: 10.3969/j.issn.2095-4344.2016.11.004

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

三维环境下软骨细胞诱导滑膜间充质干细胞向软骨样细胞的分化

杨 萌,邵 博,龚忠诚,宁晓婷,刘 慧,克热木•阿巴斯,凌 彬,尹小朋, 王 冰,胡露露,王 玥,胡 鑫,林兆全   

  1. 新疆医科大学第一附属医院颌面肿瘤外科,新疆医科大学口腔医学院,新疆维吾尔自治区口腔医学研究所,新疆维吾尔自治区乌鲁木齐市  830054
  • 收稿日期:2016-01-18 出版日期:2016-03-11 发布日期:2016-03-11
  • 通讯作者: 龚忠诚,博士,教授,副主任医师,新疆医科大学第一附属医院颌面肿瘤外科,新疆医科大学口腔医学院,新疆维吾尔自治区口腔医学研究所,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:杨萌,男,1989年生,山西省临汾市人,汉族,新疆医科大学在读硕士,主要从事颞下颌关节基础研究。 并列第一作者:龚忠诚,男,1974年生,新疆维吾尔自治区乌鲁木齐市人,汉族,博士,教授,副主任医师,主要从事颞下颌关节的临床与基础研究。
  • 基金资助:
    国家自然科学基金项目(31260229);新疆维吾尔自治区青年科技创新人才培养工程项目(2014721046)

Chondrocyte-like differentiation of synovial mesenchymal stem cells co-cultured with chondrocytes on a three-dimensional scaffold

Yang Meng, Shao Bo, Gong Zhong-cheng, Ning Xiao-ting, Liu Hui, Rekemu Abasi, Ling Bin, Yin Xiao-peng, Wang Bing, Hu Lu-lu, Wang Yue, Hu Xin, Lin Zhao-quan   

  1. Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Received:2016-01-18 Online:2016-03-11 Published:2016-03-11
  • Contact: Gong Zhong-cheng, M.D., Professor, Associate chief physician, Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Yang Meng, Studying for master’s degree, Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China Gong Zhong-cheng, M.D., Professor, Associate chief physician, Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China Yang Meng and Gong Zhong-cheng contributed equally to this work.
  • Supported by:

    the National Natural Science Foundation of China, No. 31260229; the Project for Training Youth Talents of Scientific Innovation in Xinjiang Uygur Autonomous Region, No. 2014721046

摘要:

文章快速阅读:

文题释义:

细胞支架复合物:由细胞与支架材料共同组成,支架材料为细胞生长、增殖、分化提供立体空间,同时对机体无毒、无害,不会引起炎症反应,细胞可由单一细胞组成或两种细胞混合培养,但一定含有具有多向分化潜能的间充质干细胞。
滑膜间充质干细胞的多向分化潜能:滑膜来源间充质干细胞具有高度多向分化潜能,而且其潜能不受细胞代数、供体年龄或细胞是否冷冻复苏的影响,相同条件下滑膜间充质干细胞成软骨能力最强,在病理状态下出现的滑膜性软骨化进一步支持滑膜的软骨形成潜能。滑膜间充质干细胞在特定条件下还可分化为骨组织和脂肪组织,除此以外,滑膜间充质干细胞在体外和体内实验中还具有生肌功能。

 

背景:体外环境下软骨细胞与滑膜间充质干细胞共培养能够使滑膜间充质干细胞向软骨分化,关于体内环境下细胞共培养诱导干细胞分化的研究很少。
目的:拟将滑膜间充质干细胞/软骨细胞与壳聚糖/Ⅰ型胶原复合支架材料植入大鼠背部皮下,了解细胞复合支架在体内向软骨分化的情况。
方法:取SD大鼠膝关节滑膜组织及软骨组织,用酶消化法获得滑膜间充质干细胞及软骨细胞分别进行培养。实验设单纯软骨细胞组,单纯滑膜间充质干细胞组,滑膜间充质干细胞︰软骨细胞为1︰2组,无细胞材料组,取第3代滑膜间充质干细胞及第2代软骨细胞培养于壳聚糖/Ⅰ型胶原复合支架材料中移植于SD大鼠皮下,4,8周时取材进行苏木精-伊红染色、甲苯胺蓝染色和免疫组织化学检测。

结果与结论:植入4,8周后,细胞支架材料保持圆盘状,单纯软骨细胞组、滑膜间充质干细胞︰软骨细胞为1︰2组可见细胞及细胞基质Ⅱ型胶原阳性表达,单纯软骨细胞组、滑膜间充质干细胞︰软骨细胞为   1︰2组蛋白聚糖阳性表达,结果表明两种细胞混合培养于壳聚糖/Ⅰ型胶原复合支架材料中,在体内环境下能够形成软骨样组织。 

ORCID: 0000-0002-3010-4017(龚忠诚)

关键词: 组织构建, 软骨组织工程, 滑膜间充质干细胞, 软骨细胞, 共培养技术, Ⅱ型胶原, 蛋白聚糖, 国家自然科学基金

Abstract:

BACKGROUND: The co-culture of chondrocytes and synovial mesenchymal stem cells can induce the cartilage differentiation of synovial mesenchymal stem cells in vitro, but the cell differentiation induced by co-culture in vivo is rarely reported. OBJECTIVE: To investigate the chondrogenic differentiation of synovial mesenchymal stem cells co-cultured with chondrocytes on the chitosan/type I collagen composite scaffolds after being transplanted into the subcutaneous layer of Sprague-Dawley rats.
METHODS: The synovial mesenchymal stem cells and chondrocytes harvested from the synovial membrane and articular cartilage of Sprague-Dawley rats were obtained by enzyme digestion method and cultured respectively. Passage 3 synovial mesenchymal stem cells and passage 2 chondrocytes, which were divided into four groups: group A (chondrocytes alone), group B (synovial mesenchymal stem cells alone), group C (ratio of synovial mesenchymal stem cells:chondrocytes=1:2) and group D (scaffold material without cells), were cultured on chitosan/type I collagen composite scaffolds and transplanted into the subcutaneous layer of rats followed by morphological observation and immunohistochemical staining at 4 and 8 weeks.   .
RESULTS AND CONCLUSION: After 4 and 8 weeks, the discoid-like scaffold was visible. The immunohistochemical staining of type II collagen and the toluidine blue staining of aggrecan were significantly positive in groups A and C. These results show that the co-culture of synovial mesenchymal stem cells and chondrocytes on the scaffold in vivo can form cartilage-like tissues.