中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (24): 3501-3507.doi: 10.3969/j.issn.2095-4344.2016.24.001

• 骨组织构建 bone tissue construction •    下一篇

淫羊藿苷促进骨髓间充质干细胞成骨分化

鲍  远,黄俊明,靖兴志,李兴艳,董永辉,张津铭,郭风劲,陈安民   

  1. 华中科技大学同济医学院附属同济医院骨科,湖北省武汉市  430030
  • 出版日期:2016-06-10 发布日期:2016-06-10
  • 通讯作者: 陈安民,博士,教授,主任医师,华中科技大学同济医学院附属同济医院骨科,湖北省武汉市 430030
  • 作者简介:鲍远,男,1986年生,浙江省杭州市人,汉族,在读博士,主要从事软骨再生修复及骨髓间充质干细胞的研究。
  • 基金资助:

    国家自然科学基金资助项目(81171696,81472082)

Icariin promotes osteogenic differentiation of bone marrow mesenchymal stem cells

Bao Yuan, Huang Jun-ming, Jing Xing-zhi, Li Xing-yan, Dong Yong-hui, Zhang Jin-ming, Guo Feng-jin, Chen An-min   

  1. Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
  • Online:2016-06-10 Published:2016-06-10
  • Contact: Chen An-min, M.D., Professor, Chief physician, Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
  • About author:Bao Yuan, Studying for doctorate, Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81171696 and 81472082

摘要:

文章快速阅读:

文题释义:
RUNX2:即runt相关转录因子2,是一种与成骨分化相关的转录因子,在成骨分化过程的早期即有表达。它与DNA的特定区域结合,并调控OCN、OSX等促成骨分化相关基因的转录活性。RUNX2缺陷小鼠膜内成骨和软骨内成骨过程均不能发生,说明它是成骨分化不可缺少的转录因子。
骨小梁和骨皮质的结构参数:骨体积密度(BV/TV),即相对骨体积或相对骨体积分数;骨小梁厚度(trabecular thickness,Tb.Th),即骨小梁的平均厚度;骨小梁数目(trabecular number,Tb.N),即给定长度内骨组织与非骨组织的交点数量;骨小梁分离度(trabecular separation,Tb.Sp),即骨小梁之间的髓腔平均宽度。

摘要
背景
:传统中药淫羊藿应用于各类骨科疾病有着悠久的历史,其主要成分之一淫羊藿苷有多种生物学效应。
目的:探讨淫羊藿苷在体内及体外对骨髓间充质干细胞成骨分化的作用及机制。
方法:在体外存在或不存在成骨诱导培养的条件下,用淫羊藿苷作用于骨髓间充质干细胞,通过RT-PCR检测runx2、ocn和osx基因的表达情况,以及通过茜素红染色检测成骨细胞分泌的钙结节数量。用淫羊藿苷喂养大鼠(2 mg/d)5周后,进行MicroCT扫描并分析胫骨上段骨结构。
结果与结论:①无论是否存在成骨诱导培养条件,淫羊藿苷均能促进成骨分化相关基因的表达;②在成骨诱导培养时,淫羊藿苷能明显增加钙结节沉积;③动物实验表明淫羊藿苷能显著促进骨小梁的生成。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0003-3592-9904(鲍远)

关键词: 组织构建, 骨细胞, 淫羊藿苷, 骨髓间充质干细胞, 成骨分化, runt相关转录因子2, 骨钙素, 成骨细胞特异性转录因子, 国家自然科学基金

Abstract:

BACKGROUND: Herba epimedii, a traditional Chinese medicine, has a long time in dealing with various orthopedic disorders. Icariin with many biological activites is one of the most important compositions of Herba epimedii.
OBJECTIVE: To investigate the effects of icariin on osteogenic differentiation of mesenchymal stem cells and the underlying mechanisms.
METHODS: Bone marrow mesenchymal stem cells were treated using icariin with or without osteogenic medium in vitro. Osteogenic differentiation markers, including runt-related transcription factor 2, osteocalcin and osterix, were detected by real time-qPCR. Alizarin red staining was used to measure calcium nodes generated by osteoblasts induced from bone marrow mesenchymal stem cells. The proximal tibia bone structure of rats fed with icariin (2 mg per day) for 5 weeks was detected and analyzed by MicroCT.
RESULTS AND CONCLUSION: Icariin was able to promote the expression of genes related to osteogenic differentiation in the absence or presence of osteogenic induction. Icariin could obviously increase the quantity of calcium nodes when mesenchymal stem cells were cultured in the osteogenic medium. The animal experiment showed that icariin improved formation of trabecular bone.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Epimedium, Bone Marrow, Mesenchymal Stem Cells, Osteocalcin, Core Binding Factor Alpha 1 Subunit, Tissue Engineering

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