中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (6): 860-865.doi: 10.3969/j.issn.2095-4344.2014.06.007

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

山羊骨髓间充质干细胞向纤维软骨分化的形态学改变

苏雪莲1,2,包广洁1,康 宏2,刘 琳1,孔楠楠2   

  1. 1西北民族大学国家民委口腔医学重点实验室,甘肃省兰州市 730030;2兰州大学口腔医学院,甘肃省兰州市 730000
  • 修回日期:2013-12-15 出版日期:2014-02-05 发布日期:2014-02-05
  • 作者简介:苏雪莲,女,1978年生,甘肃省武威市人,汉族,2010年兰州大学毕业,硕士,副教授,主要从事颞下颌关节盘组织工程的研究。
  • 基金资助:

    甘肃省科技支撑计划项目(1104FKCA144);西北民族大学中青年科研基金项目(12XB32);国家自然科学基金(81160139)资助

Morphological changes of goat bone marrow mesenchymal stem cells differentiating into fibrochondrocytes

Su Xue-lian1, 2, Bao Guang-jie1, Kang Hong2, Liu Lin1, Kong Nan-nan2   

  1. 1Key Laboratory of Stomatology, State Ethnic Affairs Commission, Medical College of Northwest University for Nationalities, Lanzhou 730030, Gansu Province, China; 2School of Stomatology, Lanzhou University, Lanzhou 730000, Gansu Province, China
  • Revised:2013-12-15 Online:2014-02-05 Published:2014-02-05
  • About author:Su Xue-lian, Master, Associate professor, Key Laboratory of Stomatology, State Ethnic Affairs Commission, Medical College of Northwest University for Nationalities, Lanzhou 730030, Gansu Province, China
  • Supported by:

     the Scientific Support Program of Gansu Province, No. 1104FKCA144; the Youth Research Foundation of Northwest University for Nationalities, No. 12XB32; the National Natural Science Foundation of China, No. 81160139

摘要:

背景:前期初步研究发现,碱性成纤维细胞生长因子可诱导骨髓间充质干细胞向颞下颌关节盘细胞方向分化,且碱性成纤维细胞生长因子 10 μg/L诱导组合成胶原量明显高于5 μg/L诱导组。

目的:观察经不同浓度碱性成纤维细胞生长因子诱导后的骨髓间充质干细胞的超微结构变化。
方法:原代分离培养山羊骨髓间充质干细胞,选P3,P4细胞,用5,10 μg/L碱性成纤维细胞生长因子诱导骨髓间充质干细胞,以未加碱性成纤维细胞生长因子培养的骨髓间充质干细胞做对照。倒置相差显微镜观察细胞生长状况,用第7,14,21天的细胞爬片行蕃红O、天狼猩红和Ⅰ型胶原免疫组织化学染色,并观察第21天细胞的超微结构。

结果与结论:经不同浓度碱性成纤维细胞生长因子诱导后,骨髓间充质干细胞可向颞下颌关节盘成纤维细胞样细胞形态分化,10 μg/L组细胞更像关节盘成纤维细胞样细胞。提示骨髓间充质干细胞有向颞下颌关节盘细胞方向分化的形态学基础。


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, 骨髓干细胞, 骨髓间充质干细胞, 颞下颌关节盘, 碱性成纤维细胞生长因子, 细胞培养, 组织工程, 透射电镜, 国家自然科学基金

Abstract:

BACKGROUND: Our preliminary studies have shown that basic fibroblast growth factor can induce the differentiation of bone marrow mesenchymal stem cells into disc cells of the temporomandibular joint, and for basic fibroblast growth factor, 10 μg/L is superior to 5 μg/L in collagen synthesis.

OBJECTIVE: To observe ultrastructural changes of bone marrow mesenchymal stem cells after being induced by different concentrations of basic fibroblast growth factor.
METHODS: We cultured primary sheep bone marrow mesenchymal stem cells and selected passage 3 and 4 cells at good growth state. Bone marrow mesenchymal stem cells were stimulated with 5 and 10 μg/L basic fibroblast growth factor and their growth state was observed under inverted phase contrast microscope. Uninduced cells served as controls. The slides with cell crawling pieces were stained with Safranin O, picrosirius and type I collagen immunohistochemistry at days 7, 14 and 21, respectively. Simultaneously we collected the cells at day 21 to observe the ultrastructural changes of bone marrow mesenchymal stem cells.
RESULTS AND CONCLUSION: After being induced with different concentrations of basic fibroblast growth factor, bone marrow mesenchymal stem cells were able to differentiate into disc cells of the temporomandibular joint; and after being induced with 10 μg/L basic fibroblast growth factor, cells were more like fibroblast-like cells of the temporomandibular joint disc. These findings indicate that bone marrow mesenchymal stem cells have morphological basis for differentiation to the fibroblast-like cells of the temporomandibular joint disc.

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: stem cells, mesenchymal stem cells, temporomandibular joint disk, fibroblast growth factor 2

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