中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (1): 100-105.doi: 10.3969/j.issn.2095-4344.2014.01.017

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

软骨细胞上清液诱导滑膜间充质干细胞微团培养成软骨

邵  博,龚忠诚,刘  慧,凌  彬,克热木,尹小朋,胡露露,王  冰,宁晓婷,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
  • 修回日期:2013-12-10 出版日期:2014-01-01 发布日期:2014-01-01
  • 通讯作者: 龚忠诚,博士,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 通讯作者:林兆全,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:邵博,男,1986年生,新疆维吾尔自治区乌鲁木齐市人,汉族,新疆医科大学在读硕士,主要从事口腔颌面外科学研究。 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,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:

    新疆维吾尔自治区自然科学基金项目(2011211A068),项目名称:PLLA/PDLA三维支架与滑膜间充质干细胞构建颞下颌关节盘的实验研究

Chondrocyte supernatant induces chondrogenesis and pellet cultivation of rat synovial mesenchymal stem cells

Shao Bo, Gong Zhong-cheng, Liu Hui, Ling Bin, Ke Re-mu, Yin Xiao-peng, Hu Lu-lu, Wang Bing, Ning Xiao-ting, Lin Zhao-quan   

  1. Oncology Department of Oral & Maxillofacial Surgery, the First Teaching Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Province, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Revised:2013-12-10 Online:2014-01-01 Published:2014-01-01
  • Contact: Gong Zhong-cheng, Oncology Department of Oral & Maxillofacial Surgery, the First Teaching Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Province, Urumqi 830054, Xinjiang Uygur Autonomous Region, China Corresponding author: Lin Zhao-quan, Chief physician, Oncology Department of Oral & Maxillofacial Surgery, the First Teaching Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Province, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Shao Bo, Studying for master’s degree, Oncology Department of Oral & Maxillofacial Surgery, the First Teaching Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Province, Urumqi 830054, Xinjiang Uygur Autonomous Region, China Gong Zhong-cheng, M.D., Associate chief physician, Oncology Department of Oral & Maxillofacial Surgery, the First Teaching Hospital of Xinjiang Medical University, Stomatology College of Xinjiang Medical University, Stomatology Research Institute of Xinjiang Province, Urumqi 830054, Xinjiang Uygur Autonomous Region, China Shao Bo and Gong Zhong-cheng contributed equally to this work.
  • Supported by:

    the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2011211A068

摘要:

背景:滑膜间充质干细胞在体外具有多向分化的能力,有望成为软骨组织工程中治疗软骨缺损的种子细胞,在其向软骨细胞分化过程中,合适的生长因子起了重要作用。
目的:利用富含生长因子的软骨细胞上清液诱导滑膜间充质干细胞向软骨细胞分化,并对其鉴定。
方法:采用消化法分别获得SD大鼠滑膜间充质干细胞、软骨细胞。收集软骨细胞上清液离心、过滤冻存备用。培养滑膜间充质干细胞至第3代后离心成微团,并用软骨细胞上清液进行成软骨诱导分化,通过形态学观察、免疫组织化学法、RT-PCR检测进行鉴定。
结果与结论:滑膜间充质干细胞使用软骨细胞上清液成软骨诱导21 d后,微团可见似软骨样组织。免疫组化法进行Ⅱ型胶原鉴定,基质能被Ⅱ型胶原染色,细胞染色呈现棕黄色。RT-PCR结果显示诱导后的微团表达软骨特异性基因Ⅱ型胶原和蛋白聚糖。证实软骨细胞分泌的可溶性因子可以诱导大鼠滑膜间充质干细胞向软骨方向分化。


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, 诱导, 滑膜间充质干细胞, 软骨形成, 软骨细胞, 可溶性因子, 生长因子, 种子细胞, 三维培养, 新疆维吾尔自治区自然科学基金

Abstract:

BACKGROUND: Synovial mesenchymal stem cells have the ability of multilineage differentiation in vitro, which are expected to be seed cells for the treatment of cartilage defects in cartilage tissue engineering. Appropriate growth factors are critical for the chondrocyte differentiation of synovial mesenchymal stem cells.
OBJECTIVE: To study the role of secreted factors by chondrocytes to induce chondrogenesis of synovial mesenchymal stem cells.
METHODS: The synovial mesenchymal stem cells and chondrocytes were harvested from rat knee joints and cultured through the digestion method. The supernatant was collected from chondrocytes, and centrifuged, filtered and cryopreserved. The third passage synovial mesenchymal stem cells centrifuged as pellets were cultured in the chondrocyte supernatant for 21 days. And the cells morphology was examined and the type II collagen and aggrecan were detected through immunohistochemistry and RT-PCR.
RESULTS AND CONCLUSION: The synovial mesenchymal stem cell pellets cultured in the chondrocyte supernatant became cartilage-like tissue after 21 days. The type II collagen was detected positively in the matrix of synovial mesenchymal stem cell pellet immunohistochemically. RT-PCR examination showed that the type II collagen and aggrecan expressed in the synovial mesenchymal stem cellpellet cultured in the chondrocyte supernatant. It suggested that synovial mesenchymal stem cell could be induced to differentiate into chondrocytes depending on soluble factors secreted by 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: chondrocytes, synovial membrane, mesenchymal stem cells, cell culture, cell differentiation, tissue engineering

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