中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (13): 2020-2026.doi: 10.12307/2022.327

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

龟鹿二仙胶含药血清介导大鼠骨髓间充质干细胞的成骨分化

陈锦成1,2,朱国涛1,2,秦晓飞1,2,陈彦丞2,罗  骏2,刘洪文1,2,吴宜璟2,徐  杰1,2   

  1. 1福建中医药大学中医骨伤及运动康复教育部重点实验室,福建省福州市   350122;2福建省立医院骨二科,福建医科大学,福建省福州市   350001
  • 收稿日期:2020-12-18 修回日期:2020-12-19 接受日期:2021-01-23 出版日期:2022-05-08 发布日期:2021-12-20
  • 通讯作者: 徐杰,博士,教授,福建中医药大学中医骨伤及运动康复教育部重点实验室,福建省福州市 350122;福建省立医院骨二科,福建医科大学,福建省福州市 350001
  • 作者简介:陈锦成,男,广西壮族自治区贵港市人,汉族,福建中医药大学在读硕士,主要从事骨质疏松、肌少-骨质疏松症基础与临床研究。
  • 基金资助:
    福建省自然科学基金面上项目(2019J01173),项目负责人:徐杰;2019福建省卫生教育联合攻关项目(2019-WJ-01),项目负责人:徐杰;卫生健康委医学创新课题(2019-CX-1),项目负责人:徐杰

Guilu Erxian Gum medicated serum mediated osteogenic differentiation of rat bone marrow mesenchymal stem cells

Chen Jincheng1, 2, Zhu Guotao1, 2, Qin Xiaofei1, 2, Chen Yancheng2, Luo Jun2, Liu Hongwen1, 2, Wu Yijing2, Xu Jie1, 2   

  1. 1Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (Fujian University of Traditional Chinese Medicine), Ministry of Education, Fuzhou 350122, Fujian Province, China; 2Second Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
  • Received:2020-12-18 Revised:2020-12-19 Accepted:2021-01-23 Online:2022-05-08 Published:2021-12-20
  • Contact: Xu Jie, MD, Professor, Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (Fujian University of Traditional Chinese Medicine), Ministry of Education, Fuzhou 350122, Fujian Province, China; Second Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
  • About author:Chen Jincheng, Master candidate, Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (Fujian University of Traditional Chinese Medicine), Ministry of Education, Fuzhou 350122, Fujian Province, China; Second Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou 350001, Fujian Province, China
  • Supported by:
    the General Project of Natural Science Foundation of Fujian Province, No. 2019J01173 (to XJ); the Health Education Joint Research Project of Fujian Province in 2019, No. 2019-WJ-01 (to XJ); the Medical Innovation Project of the Health Commission, No. 2019-CX-1 (to XJ)

摘要:

文题释义:
中药含药血清:是指将中药古法煎煮、浓缩成一定浓度并高压灭菌后,按人与动物体质量折算的等效剂量换算给动物灌胃,经过动物机体自然吸收并进入血液循环代谢,在血药代谢峰值时间内采集动物血液,离心得到含有动物真实血药浓度的上层血清,将含药血清加入目的细胞培养体系中,观察含药血清对目的细胞形态学与分子学所产生药理作用的一种体外实验方法。
骨髓间充质干细胞三系诱导分化:骨髓间充质干细胞是来源于发育早期中胚层的具有高度自我更新能力和多向分化潜能的多能干细胞,能够分化为肝细胞样细胞、成纤维细胞、成骨细胞、软骨细胞、脂肪细胞、肌原细胞以及神经外胚泡等,在做骨髓间充质干细胞诱导分化实验时,根据其成骨、成软骨、成脂3个方向诱导分化水平来判断它的分化潜能。

背景:在研究骨髓间充质干细胞增殖的基础上揭示其分化机制是防治骨质疏松症研究的热门课题之一。
目的:探讨龟鹿二仙胶含药血清诱导骨髓间充质干细胞成骨分化以防治骨质疏松症的分子机制与激活细胞外信号调节激酶1/2/E26转录因子1信号通路因子之间的相关性。
方法:购买商品化第3代 SD大鼠骨髓间充质干细胞,根据加入不同成分培养基分为胎牛血清组、空白血清组、龟鹿二仙胶含药血清组、经典诱导组以及通路抑制剂组、龟鹿二仙胶含药血清+通路抑制剂组,根据分组条件进行成骨诱导分化,每3 d换液1次,干预7 d时采用碱性磷酸酶活性检测试剂盒测定前4组骨髓间充质干细胞的成骨分化水平;干预14 d时采用茜素红染色观察前4组骨髓间充质干细胞的成骨矿化水平,实时荧光定量PCR检测前4组骨髓间充质干细胞中碱性磷酸酶、runt家族相关转录因子2、过氧化物酶体增殖物激活受体γ和E26转录因子1的基因表达水平,Western blot法检测6组骨髓间充质干细胞中Ⅰ型胶原、碱性磷酸酶、runt家族相关转录因子2、过氧化物酶体增殖物激活受体γ、E26转录因子1、细胞外信号调节激酶1/2和磷酸化细胞外信号调节激酶1/2蛋白表达。
结果与结论:①与空白血清组比较,龟鹿二仙胶含药血清组碱性磷酸酶、runt家族相关转录因子2、E26转录因子1 mRNA的表达水平均明显升高,成脂分化特异性指标过氧化物酶体增殖物激活受体γ mRNA的表达水平则受到抑制;②与胎牛血清组和空白血清组比较,Ⅰ型胶原、碱性磷酸酶、runt家族相关转录因子2、E26转录因子1、磷酸化细胞外信号调节激酶1/2等成骨分化相关蛋白表达水平明显升高,过氧化物酶体增殖物激活受体γ蛋白表达水平同样受到抑制,使用MAPK信号通路抑制剂PD98059可下调上述成骨分化相关蛋白表达水平,上调过氧化物酶体增殖物激活受体γ蛋白表达水平;③与胎牛血清组和空白血清组比较,龟鹿二仙胶含药血清组骨髓间充质干细胞的碱性磷酸酶活性(P < 0.05)和钙化能力(P < 0.05)明显提高;④结果表明,龟鹿二仙胶含药血清可能通过调节细胞外信号调节激酶1/2/E26转录因子1信号通路因子介导骨髓间充质干细胞成骨分化,这可能是其防治骨质疏松症的重要机制之一。

https://orcid.org/0000-0003-0168-7599 (陈锦成) 

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, 骨髓间充质干细胞, 龟鹿二仙胶, 骨质疏松, 成骨分化, 细胞外信号调节激酶, 机制

Abstract: BACKGROUND: On the basis of studying the proliferation of bone marrow mesenchymal stem cells, revealing their differentiation mechanism is one of the hot topics in the study of prevention and treatment of osteoporosis.  
OBJECTIVE: To explore the relationship between the molecular mechanism of Guilu Erxian Gum medicated serum that induces osteogenic differentiation of bone marrow mesenchymal stem cells to prevent osteoporosis and the activation of extracellular signal-regulated kinase 1/2/E26 transcription factor 1 signaling pathway factors.
METHODS:  Passage 3 commercial SD rat bone marrow mesenchymal stem cells were purchased, and divided into fetal bovine serum group, blank serum group, Guilu Erxian Gum medicated serum group, classical induction group, pathway inhibitor group, and Guilu Erxian Gum+pathway inhibitor group. Osteogenic differentiation was conducted according to group conditions, and the fluid was altered every 3 days. At 7 days after intervention, alkaline phosphatase activity detection kit was used to determine the osteogenic differentiation level of bone marrow mesenchymal stem cells in the first four groups. At 14 days after intervention, alizarin red staining was used to verify the level of bone formation and mineralization of bone marrow mesenchymal stem cells in the first four groups. Real-time fluorescent quantitative PCR was used to detect the gene expression levels of alkaline phosphatase, core binding protein 2, peroxisome proliferator activated receptor γ, and E26 transcription factor 1 in bone marrow mesenchymal stem cells of the first four groups. Western blot assay was utilized to determine protein expression of type I collagen, alkaline phosphatase, core binding protein 2, peroxisome proliferator activated receptor γ, E26 transcription factor 1, extracellular signal-regulated kinase 1/2 and phosphorylated extracellular signal-regulated kinase 1/2 in bone marrow mesenchymal stem cells of the six groups.  
RESULTS AND CONCLUSION: (1) Compared with the blank serum group, the mRNA expression levels of alkaline phosphatase, core binding protein 2, and E26 transcription factor 1 were significantly higher in the Guilu Erxian Gum medicated serum group, while the mRNA expression levels of the adipogenic differentiation specific index peroxisome proliferator activated receptor γ were inhibited. (2) Compared with the fetal calf serum group and the blank serum group, the expression levels of osteogenic differentiation-related proteins, such as type I collagen, alkaline phosphatase, core binding protein 2, E26 transcription factor 1, and phosphorylated extracellular signal-regulated kinase 1/2 were significantly increased; and the expression level of peroxisome proliferator activated receptor γ protein was also suppressed. The use of MAPK signaling pathway inhibitor PD98059 could down-regulate the expression levels of osteogenic differentiation-related proteins and up-regulate the expression levels of peroxisome proliferator activated receptor γ protein. (3) Compared with the fetal bovine serum group and the blank serum group, the alkaline phosphatase activity (P < 0.05) and calcification capacity (P < 0.05) of bone marrow mesenchymal stem cells were significantly improved in the Guilu Erxian Gum medicated serum group. (4) The results show that Guilu Erxian Gum medicated serum may mediate the osteogenic differentiation of bone marrow mesenchymal stem cells through extracellular signal-regulated kinase 1/2/E26 transcription factor 1 signaling pathway factors, which may be one of its important mechanisms for preventing and treating osteoporosis.

Key words: stem cells, bone marrow mesenchymal stem cells, Guilu Erxian Gum, osteoporosis, osteogenic differentiation, extracellular signal regulated kinase, mechanism

中图分类号: