中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (17): 2637-2643.doi: 10.3969/j.issn.2095-4344.1703

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

维甲酸诱导骨质疏松模型大鼠骨髓间充质干细胞的特征

龙燕鸣1,2,谢梦生1,2,薛文利1,黄加洁1,2,李晓捷1   

  1. 1广西医科大学附属口腔医院修复科,广西壮族自治区南宁市 530021;2广西口腔颌面修复与重建研究自治区级重点实验室,广西颅颌面畸形临床医学研究中心,颌面外科疾病诊治研究重点实验室(广西高校重点实验室),广西壮族自治区南宁市 530021
  • 修回日期:2019-01-15 出版日期:2019-06-18 发布日期:2019-06-18
  • 通讯作者: 李晓捷,副教授,硕士生导师,广西医科大学附属口腔医院修复科,广西壮族自治区南宁市 530021
  • 作者简介:龙燕鸣,女,1991年生,广西壮族自治区梧州市人,汉族,广西医科大学在读硕士,主要从事口腔修复方面的研究。
  • 基金资助:

    广西自然科学基金(2013GXNSFBA019162),项目负责人:李晓捷;广西高校中青年教师基础能力提升项目(2017KY0092),项目负责人:李晓捷

Characteristics of bone marrow mesenchymal stem cells in a rat model of retinoic acid-induced osteoporosis

Long Yanming1, 2, Xie Mengsheng1, 2, Xue Wenli1, Huang Jiajie1, 2, Li Xiaojie1   

  1. 1Department of Prosthodontics, Affiliated Hospital of Stomatology, Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China; 2Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • Revised:2019-01-15 Online:2019-06-18 Published:2019-06-18
  • Contact: Li Xiaojie, Associate professor, Master’s supervisor, Department of Prosthodontics, Affiliated Hospital of Stomatology, Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • About author:Long Yanming, Master candidate, Department of Prosthodontics, Affiliated Hospital of Stomatology, Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Guangxi Zhuang Autonomous Region, No. 2013GXNSFBA019162 (to LXJ); the Basic Ability Improving Project of Young Teachers in Guangxi Universities, No. 2017KY0092 (to LXJ)

摘要:

文章快速阅读:

文题释义:
骨质疏松大鼠模型:
骨质疏松研究需构建骨质疏松模型,目前常用的大鼠骨质疏松模型构建方式有5种:去势模型、维甲酸干预模型、糖皮质激素干预模型、失用模型以及营养不良模型;该实验采用的是维甲酸干预法构建大鼠骨质疏松模型,具有操作简单、造模时间短、骨质疏松典型等优点。
维甲酸:是一种维生素A的衍生物,主要用于皮肤科疾病和肿瘤等疾病的治疗,但是研究发现,维甲酸对骨代谢产生明显的影响。通常在使用维甲酸治疗过程中伴有骨质疏松。该实验中,维甲酸诱导的骨质疏松模型大鼠骨髓间充质干细胞的成骨能力减弱,成脂能力增强,其病理性分化与骨质疏松患者以及去卵巢骨质疏松大鼠来源骨髓间充质干细胞相似,说明其适合研究骨质疏松。

 

摘要
背景:
应用维甲酸直接体外干预骨髓间充质干细胞的研究较多,而维甲酸诱导骨质疏松模型大鼠骨髓间充质干细胞的相关研究尚未见报道。
目的:建立维甲酸诱导的大鼠骨质疏松模型,观察模型大鼠骨髓间充质干细胞的体外特征。
方法:将SD大鼠随机分为2组,实验组用维甲酸70 mg/(kg•d)连续灌胃2周快速建立骨质疏松模型,对照组灌胃等体积生理盐水。采用全骨髓贴壁法体外培养两组大鼠骨髓间充质干细胞,观察两组细胞体外特征,包括细胞形态、生长曲线、成骨诱导后体外矿化能力和碱性磷酸酶分泌能力、成脂诱导后向脂肪细胞分化能力。
结果与结论:①两组骨髓间充质干细胞各时期形态基本一致,第9天时实验组增殖能力强于对照组;②实验组碱性磷酸酶活力弱于对照组(P < 0.05),茜素红染色、碱性磷酸酶染色亦支持碱性磷酸酶活力检测结果;③实验组脂滴数量和油红O吸光度值高于对照组(P < 0.05);④结果表明,维甲酸灌胃法成功构建大鼠骨质疏松模型,其骨髓间充质干细胞成骨能力降低,成脂能力增强。


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
ORCID: 0000-0001-9756-2787(龙燕鸣)

关键词: 维甲酸, 骨质疏松模型, 骨髓间充质干细胞, 成骨分化, 成脂分化, 大鼠, 广西自然科学基金

Abstract:

BACKGROUND: Retinoic acid has been directly used to intervene with bone marrow mesenchymal stem cells in vitro; however, there is still a lack of research on in vitro characteristics of bone marrow mesenchymal stem cells in an osteoporosis rat model induced by retinoic acid.
OBJECTIVE: To establish the osteoporosis rat model induced by retinoic acid and to observe the characteristics of bone marrow mesenchymal stem cells from the rat model in vitro
METHODS: Sprague-Dawley rats were randomly divided into two groups. The experimental group was treated with retinoic acid, 70 mg/kg per day for 2 weeks, in order to quickly establish osteoporosis models, while the control group was given an equal volume of normal saline. Bone marrow mesenchymal stem cells were cultured using the whole bone marrow culture method in vitro and their characteristics (cell morphology, growth curve and surface antigens) were observed. After osteogenic induction, the in vitro mineralization capacity and alkaline phosphatase secretion capacity of the cells were measured. After adipogenic induction, the adipogenic ability of cells was detected.
RESULTS AND CONCLUSION: (1) Morphology of bone marrow mesenchymal stem cells was basically the same in the two groups. The proliferation capacity of the cells in the experimental group was higher than that in the control group at 9 days after culture. (2) After osteogenic induction, the alkaline phosphatase activity in the experimental group was lower than that in the control group (P < 0.05), which was consistent with the results of alizarin red staining and alkaline phosphatase staining. (3) After adipogenic induction, larger number of lipid droplets and higher absorbance value for oil red O could be observed in the experimental group than the control group (P < 0.05). To conclude, bone marrow mesenchymal stem cells from the osteoporosis rat model induced by retinoic acid have lower osteogenic capacity but higher adipogenic capacity than the normal cells.

Key words: retinoic acid, osteoporosis model, bone marrow mesenchymal stem cells, osteogenic differentiation, adipogenic differentiation, rat, Natural Science Foundation of Guangxi Zhuang Autonomous Region

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