中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (23): 3622-3626.doi: 10.3969/j.issn.2095-4344.2014.23.003

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

大鼠颌骨来源骨髓间充质干细胞中Cbfα1/p56亚型的表达

周建华1,许艳彬2,邱建忠1,陈正岗1,江宏兵2,王莉莉3   

  1. 青岛大学附属青岛市市立医院,1口腔医学中心,3中心实验室,山东省青岛市 266011;2南京医科大学附属江苏省口腔医院,江苏省南京市 210029
  • 修回日期:2014-03-14 出版日期:2014-06-04 发布日期:2014-06-04
  • 通讯作者: 王莉莉,博士,青岛大学附属青岛市市立医院中心实验室,山东省青岛市 266011
  • 作者简介:周建华,男,1978年生,四川省资阳市人,汉族,2007年南京医科大学毕业,硕士,讲师,主要从事颌骨的修复与重建研究。
  • 基金资助:

    青岛市科技局项目支撑计划(KJZD-12-33-nsh)

Expression of Cbfα1/p56 subtype in bone marrow mesenchymal stem cells from rat mandible

Zhou Jian-hua1, Xu Yan-bin2, Qiu Jian-zhong1, Chen Zheng-gang1, Jiang Hong-bing2, Wang Li-li3   

  1. 1Department of Oral and Maxillofacial Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao 266011, Shandong Province, China; 2Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Jiangsu Province, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China; 3Department of Central Laboratories, Qingdao Municipal Hospital, Qingdao University, Qingdao 266011, Shandong Province, China
  • Revised:2014-03-14 Online:2014-06-04 Published:2014-06-04
  • Contact: Wang Li-li, M.D., Department of Central Laboratories, Qingdao Municipal Hospital, Qingdao University, Qingdao 266011, Shandong Province, China
  • About author:Zhou Jian-hua, Master, Lecturer, Department of Oral and Maxillofacial Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao 266011, Shandong Province, China
  • Supported by:

    the Supporting Project of Qingdao Science and Technology Bureau, No. KJZD-12-33-nsh

摘要:

背景:与来源于中胚层间充质的躯干四肢骨不同,颌骨来源于颅神经嵴外胚间充质,具有独特的膜内成骨机制。核心结合因子Cbfα1是骨分化的关键性转录因子,但其p56亚型在颌骨组织中的作用尚不明确。

目的:研究Cbfα1/p56亚型在大鼠颌骨来源骨髓间充质干细胞中的表达及意义。
方法:原代培养大鼠颌骨和髂骨来源的骨髓间充质干细胞,采用ELISA法检测骨髓间充质干细胞中的碱性磷酸酶活性,荧光定量PCR法检测骨髓间充质干细胞中Cbfα1/p56和p57亚型的mRNA相对表达量。

结果与结论:成功培养出大鼠颌骨和髂骨来源的骨髓间充质干细胞,颌骨来源骨髓间充质干细胞的增殖能力及碱性磷酸酶活性明显高于髂骨;在培养第6天,颌骨来源骨髓间充质干细胞的Cbfα1/p56亚型mRNA相对表达量高于髂骨来源骨髓间充质干细胞(P < 0.05),而Cbfα1/p57亚型在各培养时间点的mRNA 相对表达量两组间差异均无显著性意义(P > 0.05)。结果提示Cbfα1/p56亚型对颌骨来源骨髓间充质干细胞的早期成骨分化具有重要意义。


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, 核心结合因子α1, 亚型, p56, p57, 骨髓间充质干细胞, 成骨分化, 颌骨, 髂骨

Abstract:

BACKGROUND: Unlike the ilium derived from the paraxial mesoderm, the mandible from cranial neural crest has a unique mechanism. Core binding factor α1 (Cbfα1) is a key transcription factor for skeletogenic process. However, the role of Cbfα1/p56 subtype in mandible tissue is yet not clear.

OBJECTIVE: To research the expression of Cbfα1/p56 subtype in bone marrow mesenchymal cells from rat mandible in vitro.
METHODS: Bone marrow mesenchymal stem cells from rat mandible and ilium were in vitro isolated and purified by primary culture. The characteristics of bone marrow mesenchymal cells were compared through the methods of enzyme linked immunosorbent assay and real-time PCR, including growth curve, alkaline phosphatase activity and relative mRNA expression of Cbfα1 subtypes.

RESULTS AND CONCLUSION: Bone marrow mesenchymal cells from rat mandible and ilium were successfully obtained. Bone marrow mesenchymal cells from the mandible proliferated more rapidly, alkaline phosphatase activity of which was higher than iliac cells. The relative mRNA expression of Cbfα1/p56 subtype in bone marrow mesenchymal cells from the mandible was more than that in iliac cells at 6 days of culture (P < 0.05), while the expression of Cbfα1/p57 in each time showed no statistical significance (P > 0.05). The results showed that Cbfα1/p56 is very significant in the early osteogenic differentiation of bone marrow mesenchymal cells from the mandible.


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: bone marrow, mesenchymal stem cells, ilium, mandible, core binding factor alpha 1 subunit

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