中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (6): 777-784.doi: 10.3969/j.issn.2095-4344.2016.06.003

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

淫羊藿苷对环磷酰胺化疗导致小鼠骨髓间充质干细胞成骨分化障碍的保护作用

杨志烈1,2,王成龙2,赵东峰2,常君丽2,杨 成1,杨燕萍2,王拥军2   

  1. 1滨州医学院中西医结合学院,山东省烟台市 264003;2上海中医药大学附属龙华医院,上海市 200032
  • 收稿日期:2016-01-04 出版日期:2016-02-05 发布日期:2016-02-05
  • 通讯作者: 杨燕萍,研究员,上海中医药大学附属龙华医院,上海市 200032 并列通讯作者:王拥军,教授,博士生导师,上海中医药大学附属龙华医院,上海市 200032
  • 作者简介:杨志烈,男,1987年生,贵州省遵义市人,汉族,2016年滨州医学院毕业,硕士,主要从事骨与关节方面的研究。
  • 基金资助:
    国家自然科学基金面上项目(81373667和81202708);国家重点基础研究发展计划(“973”计划)基金资助项目(2010CB530400);上海中医药大学“085”一流学科建设(085ZY1217和085ZY1204);教育部创新团队发展计划(IRT1270);国家中医临床研究基地龙医学者、龙医团队计划项目(LYTD-23);上海市科委“扬帆计划”项目(15YF1412200);上海中医药大学龙华医院自然基金(14YR03)

Icariin protects against cyclophosphamide-induced obstacle of mouse bone marrow mesenchymal stem cells differentiating into osteoblasts

Yang Zhi-lie1, 2, Wang Cheng-long2, Zhao Dong-feng2, Chang Jun-li2, Yang Cheng1, Yang Yan-ping2, Wang Yong-jun2   

  1. 1Institute of Integrated Chinese and Western Medicine, Binzhou Medical University, Yantai 264003, Shandong Province, China; 2Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
  • Received:2016-01-04 Online:2016-02-05 Published:2016-02-05
  • Contact: Yang Yan-ping, Researcher, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China Corresponding author: Wang Yong-jun, Professor, Doctoral supervisor, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
  • About author:Yang Zhi-lie, Master, Institute of Integrated Chinese and Western Medicine, Binzhou Medical University, Yantai 264003, Shandong Province, China; Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81373667, 81202708; the National Basic Research Program of China (973 Program), No. 2010CB530400; a grant for the “085” First-Class Disciplines Construction of Shanghai University of Traditional Chinese Medicine, No. 085ZY1217,
    085ZY1204; the Innovation Team Development Program of Ministry of Education in China,
    No. IRT1270; the Dragon Medical Scholar and Team Program of the National TCM Clinical Research Base, No. LYTD-23; the Sail Program of Shanghai Science and Technology Department, No. 15YF1412200; the Natural Science Foundation of Longhua Hospital of Shanghai University of Traditional Chinese Medicine, No. 14YR03

摘要:

文章快速阅读:

文题释义:

淫羊藿苷:属黄酮类化合物,为常用补肾中药淫羊藿的主要有效成分,现代药理学研究显示淫羊藿苷可促进骨形成,抑制骨吸收,具有很强的抗骨质疏松活性,在防治骨缺损、骨质疏松等骨疾病中具有广阔的应用前景。此外淫羊藿苷还具有抗炎、抗肿瘤和抗抑郁、抗神经元损伤、促神经突触生长等作用。

参与成骨细胞分化的信号通路:成骨细胞是人体骨组织的重要组成成分,也是参与骨形成的主要功能细胞,在骨骼生长发育及骨量维持方面扮演着关键角色。它来源于具有多向分化潜能的间充质干细胞,经细胞增殖、细胞外基质合成、成熟及矿化后最终发展成为骨细胞,从而促进骨形成及维持骨量。从分子生物学水平上看,目前已知多条信号通路参与了成骨细胞分化过程的调节,其中最重要的信号通路包括BMP-Smads、Wnt/β-catenin、Notch、Hedgehog、FGF等。这些信号通路在调控成骨细胞分化及骨生成方面起着重要作用,一旦其中一条或数条信号通路调节受阻,都会引起成骨细胞分化异常或骨形成障碍,进而导致相应骨代谢疾病的发生,如骨质疏松症、骨硬化症等。

 

 

 ORCID: 0000-0003-4736-1981 (杨志烈)

关键词: 干细胞, 骨髓干细胞, 环磷酰胺, 骨髓间充质干细胞, 成骨分化, 淫羊藿苷, 保护作用 , Wnt/β-catenin, 国家自然科学基金

Abstract:

BACKGROUND: Osteoporosis caused by chemotherapy has become one of the serious side effects that impact the skeletal system. Icariin shows a strong anti-osteoporosis activity, which can have protective effect on osteoporosis induced by chemotherapy.
OBJECTIVE: To study the protective effect and mechanism of icariin against cyclophosphamide-induced obstacle of mouse bone marrow mesenchymal stem cells differentiating into osteoblasts.
METHODS: MTT assay and alkaline phosphatase (ALP) staining were used to determine the optimal protective concentration of icariin against cyclophosphamide-induced obstacle of mouse bone marrow mesenchymal stem cells differentiating into osteoblasts. mRNA expressions of osteoblast-specific transcription factors, OC, ALP, Runx2, and Wnt/β-catenin signaling pathway target genes, β-catenin, C-Myc, cyclin D1, were determined using RT-PCR method at different time after intervention with the optimal concentration of icariin. Expressions of Runx2, β-catenin, c-Myc, cyclin D1 regulated by the optimal concentration of icariin were detected using western blot assay at the protein level.
RESULTS AND CONCLUSION: Cell viability and ALP activity decreased significantly in the cyclophosphamide group compared with the control group, but there was no significant difference in cell viability between icariin group and cyclophosphamide group. Icariin at 100 μmol/L showed the best protective effect against cyclophosphamide-induced obstacle of osteogenic differentiation of bone marrow mesenhymal stem cells. Compared with the control group, cyclophosphamide chemotherapy reduced the expressions of ALP, OC, Runx2 at mRNA level and Runx2 at protein level, weakened the expressions of β-catenin, cyclin D1 at mRNA level and active β-catenin, Cyclin D1, c-myc at protein level, and increased the expression of DKK1. Compared with the cyclophosphamide group, 100 μmol/L icariin increased the expression of osteoblast-specific transcription factors and Wnt/β-catenin signaling pathway genes at mRNA and protein levels, and reduced the expression of DKK1 protein. These results show that cyclophosphamide can lead to osteogenic differentiation disorder of mouse bone marrow mesenchymal stem cells, and in contrast, icariin shows a protective effect and its optimal intervention concentration is 100 μmol/L. Additionally, the protective role of icariin is probably related to activation of Wnt/β-catenin signal pathway.