中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (24): 3796-3801.doi: 10.12307/2022.556

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

哇巴因体外诱导人骨髓间充质干细胞的成骨分化

崔寅鹏1,郭  艾2,马立峰2,刘振江1   

  1. 1首都儿科研究所附属儿童医院骨科,北京市  100020;2首都医科大学附属北京友谊医院骨科,北京市  100050
  • 收稿日期:2020-12-14 接受日期:2021-01-30 出版日期:2022-08-28 发布日期:2022-01-22
  • 通讯作者: 刘振江,博士,主任医师,首都儿科研究所附属儿童医院骨科,北京市 100020 马立峰,博士,副主任医师,首都医科大学附属北京友谊医院骨科,北京市 100050
  • 作者简介:崔寅鹏,女,1991年生,北京市人,汉族,2017年首都医科大学毕业,硕士,医师,主要从事干细胞培养、骨组织修复及骨病治疗研究。

Ouabain induces in vitro differentiation of human bone marrow mesenchymal stem cells into osteoblasts

Cui Yinpeng1, Guo Ai2, Ma Lifeng2, Liu Zhenjiang1   

  1. 1Department of Orthopedics, Children’s Hospital, Capital Institute of Pediatrics, Beijing 100020, China; 2Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
  • Received:2020-12-14 Accepted:2021-01-30 Online:2022-08-28 Published:2022-01-22
  • Contact: Liu Zhenjiang, MD, Chief physician, Department of Orthopedics, Children’s Hospital, Capital Institute of Pediatrics, Beijing 100020, China Ma Lifeng, MD, Associate chief physician, Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
  • About author:Cui Yinpeng, Master, Physician, Department of Orthopedics, Children’s Hospital, Capital Institute of Pediatrics, Beijing 100020, China

摘要:

文题释义:
哇巴因:是一种强心甾类固醇类激素,最初从生长于非洲及南美洲的植物中提取,属于洋地黄类化合物,可通过与Na+/K+-ATPase上的特异性受体结合,在不影响其离子转运功能情况下,激活下游的蛋白级联反应,参与调节细胞的生长、增殖、代谢、凋亡等生理变化。
成骨分化:多能干细胞向单能成骨细胞转变,并最终向骨组织发展的一系列生理过程称为成骨分化,对于调节骨形成和骨再生有重要意义。

背景:哇巴因作为Na+/K+-ATPase的配体可与其结合调节细胞的增殖代谢,研究哇巴因对骨髓间充质干细胞成骨分化的影响,可为骨缺损、骨病的治疗提供思路。
目的:探讨不同浓度Na+/K+-ATPase配体哇巴因对人骨髓间充质干细胞成骨分化的影响。
方法:以人工髋关节置换手术中废弃的新鲜骨髓为实验材料,采用全骨髓直接贴壁培养法分离纯化获得人骨髓间充质干细胞,作为诱导成骨分化的实验细胞;成骨诱导前以不同浓度哇巴因(10,100,1 000 nmol/L)处理人骨髓间充质干细胞24 h,未经药物处理的人骨髓间充质干细胞直接进行诱导作为对照组,然后成骨诱导21 d后进行茜素红染色,使用Image Pro Plus软件测量染色面积比例,比较各组产生钙化结节量的差异。
结果与结论:与对照组比较,低浓度(10 nmol/L)哇巴因刺激人骨髓间充质干细胞后,茜素红染色钙化结节数量增多,染色面积高于对照组(P < 0.05);高浓度(100,1 000 nmol/L)哇巴因刺激后钙化结节数量减少,染色面积低于对照组(P < 0.05),且浓度越高钙化结节数量越少。结果表明,人工髋关节置换术中废弃的新鲜骨髓可作为分离纯化得到人骨髓间充质干细胞的实验材料,低浓度哇巴因可促进人骨髓间充质干细胞成骨分化,高浓度哇巴因抑制人骨髓间充质干细胞成骨分化。

https://orcid.org/0000-0002-2070-6057 (崔寅鹏) 

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

关键词: 干细胞, 骨髓, 人骨髓间充质干细胞, 哇巴因, Na+/K+-ATPase, 成骨分化, 人工髋关节置换

Abstract:

BACKGROUND: As a ligand of Na+/K+-ATPase, ouabain can be combined with it to regulate cell proliferation and metabolism. Studying the effect of ouabain on the osteogenic differentiation of bone marrow mesenchymal stem cells can provide ideas for the treatment of bone defects and bone diseases.
OBJECTIVE: To explore the effects of different concentrations of Na+/K+-ATPase ligand ouabain on the osteogenic differentiation of human bone marrow mesenchymal stem cells.
METHODS: Human bone marrow mesenchymal stem cells were isolated from fresh bone marrow samples from patients that experienced hip replacement, using the whole bone marrow direct adherence method, as experimental cells for inducing osteogenic differentiation. Before osteoinduction, human bone marrow mesenchymal stem cells were treated in different concentrations of ouabain (10, 100, and 1 000 nmol/L) for 24 hours. The untreated human bone marrow mesenchymal stem cells were used as the control group to induce directly. At 21 days after osteoinduction, alizarin red staining was performed. The proportion area was measured using Image Pro Plus software to compare the differences in the amount of calcified nodules produced in each group. 
RESULTS AND CONCLUSION: Compared with the control group, as human bone marrow mesenchymal stem cells in vitro treated with ouabain in low concentration (10 nmol/L), the number of calcified nodules increased after alizarin red staining and the staining areas were higher than that in the control group (P < 0.05). The number of calcified nodules observed after treatment in the high concentration group (100, 1 000 nmol/L) was reduced, and the measured stained area was smaller than that in the control group (P < 0.05). The higher the concentration, the fewer the calcifiednodules were. It is concluded that the fresh bone marrow form hip arthroplasty can be used as a test material for isolating human bone marrow mesenchymal stem cells. Low concentrations of ouabain promote differentiation of human bone marrow mesenchymal stem cells into osteoblasts, while a high concentration of ouabain showed an inhibitory effect. 

Key words: stem cells, bone marrow, human bone marrow mesenchymal stem cells, ouabain, Na+/K+-ATPase, osteogenic differentiation, artificial hip replacement

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