《口腔颌面外科杂志》 ›› 2013, Vol. 23 ›› Issue (2): 85-89. doi: 10.3969/j.issn.1005-4979.2013.02.002

• 基础研究 • 上一篇    下一篇

负压与BMSCs膜片促进细胞定植和体内成骨的探讨

温鑫鑫, 周鹂鹂, 刘宏伟   

  1. 同济大学附属口腔医院牙周科,同济大学口腔医学院口腔生物医学及转化医学实验室, 上海 200092
  • 出版日期:2013-04-28 发布日期:2013-07-03
  • 通讯作者: 刘宏伟,教授.hwliu@tongji.edu.cn E-mail:hwliu@tongji.edu.cn
  • 作者简介:温鑫鑫(1984—),男,安徽人,硕士研究生. E-mail:wenxinxin_2002@163.com
  • 基金资助:

    国家自然科学基金资助项目 (81271152); 
    上海市科委科技计划项目      (074119514)

Application of Negative Pressure System and BMSCs Cell Sheet in Bone Formation in vivo

WEN Xin-xin, ZHOU Li-li, LIU  Hong-wei   

  1. Department of Periodontology , Hospital of Stomatology, Laboratory of Oral Biomedical Science and Translation Medicine, School of Stomatology, Tongji University, Shanghai 200072,China
  • Online:2013-04-28 Published:2013-07-03

摘要: 目的: 研究经过负压处理的TCP支架材料与细胞复合后的体内成骨能力。方法:将TCP支架材料负压处理,和骨髓基质细胞(BMSCs)细胞共培养一段时间后,成骨诱导2周,电镜下观察支架材料和细胞复合情况。再将该复合物与BMSCS细胞膜片复合,植入到裸鼠皮下,8周后作组织切片,HE染色和Masson染色,观察其体内成骨能力。结果:负压(有细胞)+膜片组异位移植8周后,内部可见大量胶原纤维和成骨纤维,在团块样组织内部可见大量成骨细胞,并有血管形成。对照组仅有个别细胞密集区,胶原纤维和成骨纤维较少。空白组未见类似情况。结论:经过负压+骨髓基质细胞膜片处理的TCP支架材料,在体内有成骨潜能。

关键词: 组织工程, 骨再生, 骨髓基质细胞, 细胞膜片, 负压

Abstract:  Objective: The present study was proposed to investigate in vivo osteogenic potential of bone marrow stromal cells(BMSCs) in negative pressure treated β-Tricalcium phosphate(β-TCP) scaffolds. Methods: TCP was dealt with the syringe system (made for a subatmospheric pressure), cocultured or not cocultured with BMSCs, and differentiate into osteogenic direction for 2 weeks. BMSCs sheet was packed into TCP scaffolds and  embedded subcutaneously in nude mice for 8 weeks. Animals were sacrificed, osteogenic potential were observed histologically by HE, and Masson stain. Results:  TCP cocultured with BMSCs packed with cell sheets showed better osteogenic potential in vivo . Conclusion: Because of the formation of extracellular matrix, the negative pressure and cell sheets may promote cell colonization and improve bone formation in vivo.

Key words: tissue engineering, bone regeneration, bone marrow stromal cells, cell sheet, negative pressure system

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