基础医学与临床 ›› 2018, Vol. 38 ›› Issue (10): 1428-1433.

• 研究论文 • 上一篇    下一篇

DMB促进骨髓间充质干细胞向成骨细胞分化并缓解小鼠卵巢切除导致的骨质疏松

孙梦寒1,王宁2   

  1. 1. 兰陵县中医院
    2. 第四军医大学
  • 收稿日期:2017-11-28 修回日期:2018-01-30 出版日期:2018-10-05 发布日期:2018-09-28
  • 通讯作者: 王宁 E-mail:wn890114@126.com

DMB induces BMSCs differentiation to osteoblasts and alleviates osteoporosis in OVX mice

  • Received:2017-11-28 Revised:2018-01-30 Online:2018-10-05 Published:2018-09-28

摘要: 目的 探讨DMB能否促进骨髓间充质干细胞(BMSCs)向成骨细胞分化,促进骨形成,缓解由于小鼠去除卵巢引起的骨质疏松。方法 体外培养骨髓基质(BMSCs)细胞,将细胞分为对照组、成脂诱导组、成脂诱导+DMB(10-7、10-8和10-9 mol/L)、成骨诱导组和成骨诱导+DMB(10-7、10-8和10-9 mol/L)。分别通过油红O染色和茜素红染色分别鉴定骨髓间充质干细胞(BMSCs)的多向分化能力。将8周C57BL/6雌鼠分为对照组、卵巢去除(OVX)组和OVX+DMB(1mg/kg?d)组,共3组,每组10只。DMB连续给药2个月,观察骨量,骨小梁的形成。结果 BMSCs纯度达91.2%,DMB以浓度和时间依赖的方式促进BMSCs增殖(P<0.05)。DMB促进BMSCs向成骨细胞分化,但抑制向脂肪细胞分化。此外DMB可以显著地提高骨体积/组织体积(BV/TV)、骨小梁数量和厚度(P<0.05), 促进骨形成。结论 DMB能够促进BMSCs向成骨细胞分化,抑制向脂肪细胞分化,改善由于雌激素缺乏导致的骨质疏松,促进骨形成。

关键词: DMB, 间充质干细胞, OVX, 骨形成,成骨细胞

Abstract: Objective To determine the effect of DMB on bone formation in OVX mice via the differentiation of BMSCs to osteoblasts. Methods We isolated the BMSCs and identified them by flow cytometry. The mice were divided into three groups: control、OVX mice and OVX mice+DMB. DMB was given for 2 month to observe the bone formation. Results DMB induced BMSCs proliferation in dose- and time-dependent manner. Moreover, DMB promoted osteoblasts differentiation and inhibited adipocytes differentiation. DMB could also increase the rate of BV/TV, the trabecular number and thickness. Conclusion DMB promotes osteogenesis in OVX mice through osteoblasts differentiation of BMSCs.

Key words: DMB, BMSCs, OVX, bone formation, osteoblasts