中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (41): 6561-6566.doi: 10.3969/j.issn.2095-4344.2014.41.001

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

血管内皮祖细胞/骨髓间充质干细胞复合细胞膜片的构建

梁 源1,隋 珂1,2,尚冯青1,唐 丽1,王阿娴1,季海宁1,丁 寅1   

  1. 1解放军第四军医大学口腔医院正畸科,军事口腔医学国家重点实验室,陕西省西安市 710032;2解放军空军总医院口腔科,北京市 100036
  • 修回日期:2014-09-04 出版日期:2014-10-01 发布日期:2014-10-01
  • 通讯作者: 丁寅,博士,教授,解放军第四军医大学口腔医院正畸科,军事口腔医学国家重点实验室,陕西省西安市 710032
  • 作者简介:梁源,女,1984年生,山东省蓬莱市人,汉族,2014年解放军第四军医大学博士毕业,医师,主要从事口腔正畸临床与基础研究。
  • 基金资助:

    国家自然科学基金资助项目(81170982)

Construction of endothelial progenitor cells/bone marrow mesenchymal stem cells composite sheets

Liang Yuan1, Sui Ke1, 2, Shang Feng-qing1, Tang Li1, Wang A-xian1, Ji Hai-ning1, Ding Yin1   

  1. 1State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University of PLA, Xi’an 710032, Shaanxi Province, China; 2Department of Stomatology, Air Force General Hospital, Beijing 100036, China
  • Revised:2014-09-04 Online:2014-10-01 Published:2014-10-01
  • Contact: Ding Yin, M.D., Professor, State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University of PLA, Xi’an 710032, Shaanxi Province, China
  • About author:Liang Yuan, Master, Physician, State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University of PLA, Xi’an 710032, Shaanxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81170982

摘要:

背景:研究发现充足的血供是骨组织修复与再生必不可少的条件。

目的:应用血管内皮祖细胞与骨髓间充质干细胞构建出复合细胞膜片。
方法:体外分离培养SD大鼠血管内皮祖细胞及骨髓间充质干细胞,将两种细胞直接共培养,经成膜诱导10 d后构建出复合细胞膜片并对获得的膜片进行大体、倒置显微镜及苏木精-伊红染色观察。将血管内皮祖细胞及骨髓间充质干细胞分别应用荧光标记液标记后,观察膜片诱导过程中两种细胞的分布及交流情况。对复合细胞膜片进行碱性磷酸酶活性检测及茜素红染色,观察其成骨分化能力。

结果与结论:血管内皮祖细胞与骨髓间充质干细胞直接共培养成膜诱导10 d后可成功获得复合细胞膜片,两种细胞在成膜诱导过程中存在细胞间接触。获得的膜片由多层细胞及细胞外基质构成,经碱性磷酸酶活性检测及茜素红染色结果证实该膜片具有较强的成骨分化能力,为进一步将血管内皮祖细胞/骨髓间充质干细胞复合细胞膜片应用于骨缺损的修复提供了条件。


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, 细胞膜片, 骨髓间充质干细胞, 血管内皮祖细胞, 血管化, 直接共培养, 成膜诱导, 细胞外基质, 成骨诱导, 组织工程, 国家自然科学基金

Abstract:

BACKGROUND: Many studies have showed that enough blood supply is an essential condition of bone repair and regeneration.

OBJECTIVE: To construct the endothelial progenitor cells/bone marrow mesenchymal stem cells (EPCs/BMSCs) composite sheet.
METHODS: After isolation and culture, EPCs and BMSCs were co-cultured directly to form EPCs/BMSCs sheet by cell sheet-inducing medium. After 10 days of induction, the sheet was investigated by gross observation, inverted microscope and hematoxylin-eosin staining. The distribution and communication of EPCs and BMSCs during the process of cell sheet induction were observed after the fluorescence labeling separately. Alkaline phosphatase assay and alizarin red staining were applied to examine the ability of osteogenic differentiation of EPCs/BMSCs sheet.
RESULTS AND CONCLUSION: EPCs/BMSCs sheet was harvested after 10-day induction. Cell-cell contact between EPCs and BMSCs could be observed during the process of the cell sheet preparation. The harvested sheet was composed of multiple layers of cells and cell-produced extracellular matrix. Alkaline phosphatase assay and alizarin red staining both demonstrated that EPCs/BMSCs sheet had good osteogenic differentiation ability. These results suggested that EPCs/BMSCs sheet can be constructed successfully, and the sheet has strong osteogenic differentiation capability in vitro, providing the foundation for the repair of bone defects.

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, extracellular matrix, tissue engineering

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