中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (19): 2748-2755.doi: 10.3969/j.issn.2095-4344.2016.19.002

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

骨髓间充质干细胞联合血管内皮祖细胞修复骨质疏松性牙槽骨缺损

文  艺1,杨鸿旭2,刘  倩1,梁  源1,刘竹影1,丁  寅1   

  1. 1解放军军事口腔医学国家重点实验室,解放军第四军医大学口腔医院正畸科,陕西省西安市  710032
    2解放军第四军医大学口腔医院口腔解剖生理学教研室,陕西省西安市  710032
  • 收稿日期:2016-03-31 出版日期:2016-05-06 发布日期:2016-05-06
  • 通讯作者: 丁寅,博士,教授,解放军军事口腔医学国家重点实验室,解放军第四军医大学口腔医院正畸科,陕西省西安市 710032
  • 作者简介:文艺,女,1989年生,河南省新乡市人,汉族,2016年解放军第四军医大学毕业,硕士,主要从事口腔正畸临床治疗及干细胞成骨方面的研究。
  • 基金资助:

    国家自然科学基金(81170982)

Bone marrow mesenchymal stem cells combined with endothelial progenitor cells for repair of alveolar bone defect in ovariectomized rats

Wen Yi1, Yang Hong-xu2, Liu Qian1, Liang Yuan1, Liu Zhu-ying1, Ding Yin1   

  1. 1Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
    2Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
  • Received:2016-03-31 Online:2016-05-06 Published:2016-05-06
  • Contact: Ding Yin, M.D., Professor, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
  • About author:Wen Yi, Master, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81170982

摘要:

文章快速阅读:
 
文题释义:
细胞膜片:
细胞膜片技术获得的细胞具有丰富的细胞外基质,这些细胞外基质在膜片中构成一个完整的细胞层。与传统获取细胞膜片技术相比,实验制备细胞膜片过程中不使用胰蛋白酶消化,从而保存完整的细胞膜片结构,确保细胞间的联系不被破坏。
血管化:在骨缺损修复过程中如果缺乏与宿主血液连接的功能性微脉管系统,工程骨的形成将受到限制。通常建立并保持良好的血液供应是组织生存所必需的。因此,血管内皮祖细胞近年来受到了更多的关注。当组织缺血时,血管内皮祖细胞和细胞因子均动员至损伤区域,继而分化成为成熟的血管内皮细胞,参与新生血管的形成。


摘要
背景:
国内外已有多项研究证实雌激素可以调控血管内皮祖细胞的增殖和迁移能力,同时血管内皮祖细胞也可提高体外培养骨髓间充质干细胞的活性与功能。
目的:评价骨髓间充质干细胞联合血管内皮祖细胞复合膜片修复去势大鼠牙槽骨缺损的能力。
方法:将制备好的骨髓间充质干细胞/血管内皮祖细胞复合膜片、骨髓间充质干细胞膜片、血管内皮祖细胞膜片植入去势大鼠牙槽骨缺损处,或不植入作为空白对照。植入后2,4,8周分别取材,通过Micro-CT扫描的方法评价牙槽骨缺损的修复效果。
结果与结论:相对于单一的正常骨髓间充质干细胞膜片以及单一的正常血管内皮祖细胞膜片,正常骨髓间充质干细胞/血管内皮祖细胞复合膜片具有更强的成骨活性以及骨修复能力。

 

 


ORCID: 0000-0001-9938-2878(丁寅)

关键词: 干细胞, 骨髓干细胞, 细胞膜片, 骨髓间充质干细胞, 血管内皮祖细胞, 共培养, 骨质疏松, 牙槽骨缺损, 国家自然科学基金

Abstract:

BACKGROUND: Numerous studies have demonstrated that estrogen can regulate the proliferation and migration of endothelial progenitor cells (EPCs), while EPCs can also promote the function and activity of bone marrow mesenchymal stem cells (BMSCs) in vitro.
OBJECTIVE: To evaluate the ability of the BMSCs and EPCs which construct the composite cell sheet in the repair of alveolar bone defect in ovariectomized rats.
METHODS: BMSCs/EPCs composite sheet, EPCs sheet and BMSCs sheet were respectively implanted into the defects of the alveolar bone in ovariectomized rats. Rats with no implantation served as control group. Repaired alveolar bone was assessed by gross examination, histological observation and micro-CT scan at 2, 4, 8 weeks after operation.
RESULTS AND CONCLUSION: BMSCs/EPCs composite sheet has greater osteogensis activity and bone repair capacity than BMSCs or EPCs sheet alone.

 

 

Key words: Osteoporosis, Postmenopausal, Alveolar Bone Loss, Bone Marrow, Mesenchymal Stem Cells, Tissue Engineering

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