中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (1): 72-75.doi: 10.12307/2022.989

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

骨髓间充质干细胞移植可提高骨质疏松大鼠骨代谢水平

冯  皓1,张  斌2,王建平1   

  1. 1鹰潭市人民医院,江西省鹰潭市   335000;2南昌大学第一附属医院,江西省南昌市   330000
  • 收稿日期:2020-12-08 接受日期:2021-01-16 出版日期:2023-01-08 发布日期:2022-06-06
  • 通讯作者: 张斌,博士,主任医师,南昌大学第一附属医院,江西省南昌市 330000
  • 作者简介:冯皓,男,1981年生,江西省鹰潭市人,汉族,2009年南昌大学医学院毕业,硕士,副主任医师,主要从事创伤骨科方面的研究。
  • 基金资助:
    江西省卫生健康委科技计划(20204545),项目负责人:冯皓

Bone marrow mesenchymal stem cell transplantation can improve bone metabolism in osteoporotic rats

Feng Hao1, Zhang Bin2, Wang Jianping1   

  1. 1Yingtan City People’s Hospital, Yingtan 335000, Jiangxi Province, China; 2First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
  • Received:2020-12-08 Accepted:2021-01-16 Online:2023-01-08 Published:2022-06-06
  • Contact: Zhang Bin, MD, Chief physician, First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
  • About author:Feng Hao, Master, Associate chief physician, Yingtan City People’s Hospital, Yingtan 335000, Jiangxi Province, China
  • Supported by:
    Science and Technology Plan of Jiangxi Provincial Health Commission, No. 20204545 (to FH)

摘要:

文题释义:
骨髓间充质干细胞:是在动物的骨髓基质中发现的一种具有分化形成骨、软骨、脂肪、神经及成肌细胞多种分化潜能的细胞亚群,对骨髓中的造血干细胞具有机械支持作用,还可分泌多种生长因子来支持造血,骨髓间充质干细胞还具有修复骨、软骨、关节损伤、心脏损伤、肝脏损伤、脊髓损伤和神经系统疾病的作用。
骨代谢:人体正常的骨代谢过程是骨组织不断进行改建活动的一个复杂过程,包括骨吸收和骨形成2个方面。在骨代谢过程中,每天都有一定量的骨组织被吸收,又有相当数量的骨组织合成,两者保持着动态的平衡,当骨吸收大于骨形成时,可出现骨丢失,发生骨质疏松、骨软化等;当骨形成而无相应的骨吸收时,则可出现骨质硬化。

背景:研究证实骨髓间充质干细胞具有增加骨保护素水平、促进骨代谢的作用。
目的:探讨骨髓间充质干细胞对骨质疏松大鼠骨代谢的影响。
方法:实验所用健康SD大鼠42只,随机分为假手术组、骨质疏松组、干细胞移植组,每组14只,后2组采用去卵巢法制备大鼠骨质疏松症模型,造模成功后干细胞移植组经尾静脉移植骨髓间充质干细胞,移植28 d后采用ELISA法检测各组大鼠血清骨保护素、碱性磷酸酶、抗酒石酸酸性磷酸酶、骨钙素、胰岛素样生长因子1水平;Western blot检测各组大鼠骨组织中FoxO1的表达;AG-IX生物力学万能试验机检测股骨最大载荷和断开裂载荷;苏木精-伊红染色观察大鼠骨形态学改变。
结果与结论:①骨质疏松组骨保护素、碱性磷酸酶、胰岛素样生长因子1水平低于假手术组(P < 0.05),抗酒石酸酸性磷酸酶、骨钙素水平高于假手术组(P < 0.05);干细胞移植组骨保护素、碱性磷酸酶、胰岛素样生长因子1水平高于骨质疏松组(P < 0.05),抗酒石酸酸性磷酸酶、骨钙素的表达水平低于骨质疏松组(P < 0.05);②骨质疏松组最大载荷、断裂载荷值均低于假手术组(P < 0.05);干细胞移植组最大载荷、断裂载荷值高于骨质疏松组(P < 0.05);③干细胞移植组骨小梁明显增粗,排列较为有序,局部间隙较均匀,较骨质疏松组明显改善;④骨质疏松组大鼠骨髓组织中FoxO1蛋白表达水平低于假手术组(P < 0.05);干细胞移植组大鼠骨髓组织中FoxO1蛋白表达水平高于骨质疏松组(P < 0.05);⑤结果表明,骨髓间充质干细胞移植可提高骨质疏松大鼠骨代谢水平,其作用机制与促进骨保护素、碱性磷酸酶、FoxO1的表达有关。

https://orcid.org/0000-0001-8571-1183 (冯皓) 

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: 骨髓间充质干细胞, 骨质疏松, 骨保护素, FoxO1, 碱性磷酸酶, 大鼠

Abstract: BACKGROUND: Studies have confirmed that bone marrow mesenchymal stem cells can increase the level of osteoprotegerin and promote bone metabolism.  
OBJECTIVE: To analyze the effects of bone marrow mesenchymal stem cells on bone metabolism in osteoporotic rats.
METHODS:  Totally 42 healthy SD rats used in the experiment were divided into sham operation group, osteoporosis group, and transplantation group (n=14 per group). Rat osteoporosis model was prepared by ovariectomized method in the osteoporosis and transplantation groups. After successful model establishment, bone marrow mesenchymal stem cells were transplanted through the tail vein. At 28 days after transplantation, the serum levels of osteoprotegerin, alkaline phosphatase, tartrate resistant acid phosphatase, osteocalcin, and insulin-like growth factor 1 were detected by ELISA. Western blot assay was used to detect FoxO1 expression in the bone tissues of rats in each group. The AG-IX biomechanics machine was utilized to detect the maximum and breaking loads of the femur. Hematoxylin-eosin staining was used to observe the bone morphology of rats.  
RESULTS AND CONCLUSION: (1) The expression levels of osteoprotegerin, alkaline phosphatase, and insulin-like growth factor 1 were lower in the osteoporosis group than those in the sham operation group (P < 0.05). Tartrate resistant acid phosphatase and osteocalcin expression levels were higher in the osteoporosis group than those in the sham operation group (P < 0.05). Expression levels of osteoprotegerin, alkaline phosphatase, and insulin-like growth factor 1 were higher in the transplantation group than those in the osteoporosis group (P < 0.05). Tartrate resistant acid phosphatase and osteocalcin expression levels were lower in the transplantation group than those in the osteoporosis group (P < 0.05). (2) The maximum and breaking loads were lower in the osteoporosis group than those in the sham operation group (P < 0.05). The maximum and breaking loads were higher in the transplantation group than those in the osteoporosis group (P < 0.05). (3) The trabeculae became thicker, arranged orderly, and local space was even in the transplantation group, which was significantly improved compared with the osteoporosis group. (4) The expression level of FoxO1 protein in bone marrow tissue of rats was lower in the osteoporosis group than that in the sham operation group (P < 0.05). The expression level of FoxO1 protein in bone marrow tissue of rats was higher in the transplantation group than that in the osteoporosis group (P < 0.05). (5) It is concluded that bone marrow mesenchymal stem cell transplantation can improve bone metabolism in osteoporotic rats. Its therapeutic mechanism is related to promoting the expression of osteoprotegerin, alkaline phosphatase, and FoxO1.

Key words: bone marrow mesenchymal stem cell, osteoporosis, osteoprotegerin, FoxO1, alkaline phosphatase, rat

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