中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (7): 1371-1379.doi: 10.12307/2025.013

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

淫羊藿苷含药血清促进3种细胞共培养体系中软骨细胞增殖和干细胞成软骨分化

刘  琪1,2,李林臻1,2,李玉生1,2,焦泓焯1,2,杨  程1,2,张君涛1,2   

  1. 1天津中医药大学第一附属医院,天津市   300381;2国家中医针灸临床医学研究中心,天津市   300381
  • 收稿日期:2023-10-24 接受日期:2024-01-15 出版日期:2025-03-08 发布日期:2024-06-27
  • 通讯作者: 张君涛,博士,主任中医师,硕士生导师,天津中医药大学第一附属医院,天津市 300381;国家中医针灸临床医学研究中心,天津市 300381
  • 作者简介:刘琪,男,1997年生,安徽省亳州市人,在读硕士,主要从事中医药治疗骨关节炎及软骨修复再生相关基础研究。
  • 基金资助:
    国家自然科学基金面上项目(82074470,51573137),项目负责人:张君涛

Icariin-containing serum promotes chondrocyte proliferation and chondrogenic differentiation of stem cells in the co-culture system of three kinds of cells

Liu Qi1, 2, Li Linzhen1, 2, Li Yusheng1, 2, Jiao Hongzhuo1, 2, Yang Cheng1, 2, Zhang Juntao1, 2   

  1. 1First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, China; 2National Clinical Research Center for Traditional Chinese Medicine and Acupuncture, Tianjin 300381, China 
  • Received:2023-10-24 Accepted:2024-01-15 Online:2025-03-08 Published:2024-06-27
  • Contact: Zhang Juntao, MD, Chief physician, Master’s supervisor, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, China; National Clinical Research Center for Traditional Chinese Medicine and Acupuncture, Tianjin 300381, China
  • About author:Liu Qi, Master candidate, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, China; National Clinical Research Center for Traditional Chinese Medicine and Acupuncture, Tianjin 300381, China
  • Supported by:
    National Natural Science Foundation of China, No. 82074470, 51573137 (to ZJT)

摘要:

文题释义:

软骨细胞-骨髓间充质干细胞-滑膜间充质干细胞共培养体系:是指由软骨细胞、骨髓间充质干细胞、滑膜间充质干细胞3种细胞非接触共培养建立起来的多细胞共培养体系,该体系上室分别培养骨髓间充质干细胞、滑膜间充质干细胞,下室培养软骨细胞,上室底部为半透膜封闭(孔径0.4 μm),只允许生物活性因子通过而细胞彼此不接触,方便观察细胞间的相互影响和诱导作用。
淫羊藿苷含药血清:是指动物连续灌胃淫羊藿苷溶液后,采集血液并分离得到血清,即为淫羊藿苷含药血清。


背景:关节软骨损伤修复能力十分有限,组织工程技术为修复受损软骨提供了新的治疗方案,其中软骨细胞、骨髓间充质干细胞和滑膜间充质干细胞之间的相互影响和诱导作用是自体软骨损伤愈合的基础。
目的:构建软骨细胞-骨髓间充质干细胞-滑膜间充质干细胞共培养体系用以模拟软骨细胞体内微环境,并探究其最佳细胞接种比例,同时观察淫羊藿苷含药血清对该体系中软骨细胞增殖和干细胞成软骨分化的影响。
方法:提取、培养、鉴定大鼠膝关节软骨细胞、骨髓间充质干细胞和滑膜间充质干细胞,按不同细胞接种比例构建软骨细胞-骨髓间充质干细胞-滑膜间充质干细胞非接触共培养体系,共培养72 h后观察软骨细胞增殖活性和表型能力,选择综合效应最佳的共培养体系;用淫羊藿苷溶液(0.25 mg/mL)灌胃新西兰大白兔制备淫羊藿苷含药血清,对照组共培养体系用含体积分数为10%胎牛血清、1%双抗的高糖DMEM培养液培养,实验组共培养体系在此基础之上加入体积分数为10%淫羊藿苷含药血清进行干预,24,48 h后检测两组软骨细胞增殖活性和Ⅱ型胶原表达,14 d后采用免疫荧光染色检测骨髓间充质干细胞、滑膜间充质干细胞成软骨分化情况。 
结果与结论:①3种细胞以不同比例共培养时均可正常贴壁生长,当软骨细胞、骨髓间充质干细胞、滑膜间充质干细胞接种比例为2∶1∶1时,共培养体系中软骨细胞表现出最佳增殖活性和表型能力;②与对照组相比,实验组培养24 h后软骨细胞增殖活性和Ⅱ型胶原表达显著升高(P < 0.01),48 h后两组仍有差异(P < 0.05),培养14 d后两组骨髓间充质干细胞和滑膜间充质干细胞出现明显的软骨分化,部分细胞呈现圆形或椭圆形,胞浆Ⅱ型胶原免疫荧光染色为阳性,实验组荧光强度明显高于对照组(P < 0.01);③结果表明,以非接触共培养方法可以成功建立软骨细胞-骨髓间充质干细胞-滑膜间充质干细胞共培养体系且细胞比例为2∶1∶1时软骨细胞增殖活性和表型能力最佳;同时淫羊藿苷含药血清具有促进该体系中软骨细胞增殖及骨髓间充质干细胞、滑膜间充质干细胞成软骨分化的作用。

https://orcid.org/0009-0003-2030-5522 (刘琪) 


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: 淫羊藿苷含药血清, 软骨细胞, 骨髓间充质干细胞, 滑膜间充质干细胞, 共培养, 细胞增殖, Ⅱ型胶原, 成软骨分化

Abstract: BACKGROUND: The capability of repairing articular cartilage damage is very limited, and tissue engineering technology provides new therapeutic options for repairing damaged cartilage, in which the interaction and induction between chondrocytes, bone marrow mesenchymal stem cells, and synovial mesenchymal stem cells is the basis of autologous healing of cartilage damage.
OBJECTIVE: To construct the chondrocyte-bone marrow mesenchymal stem cell-synovial mesenchymal stem cell co-culture system to simulate the in vitro microenvironment of chondrocytes, and to explore the optimal cell inoculation ratio, meanwhile to observe the effects of icariin-containing serum on the proliferation of chondrocytes and the chondrogenic differentiation of stem cells in the system.
METHODS: Rat knee chondrocytes, bone marrow mesenchymal stem cells and synovial mesenchymal stem cells were extracted, cultured and identified, and a chondrocyte-bone marrow mesenchymal stem cell-synovial mesenchymal stem cell non-contact co-culture system was constructed according to different cell inoculation ratios. After 72 hours of co-culturing, the chondrocyte proliferative activity and phenotypic ability were observed, and the co-culture system with the best overall effect was selected. New Zealand white rabbits were gavaged with icariin solution (0.25 mg/mL) to prepare icariin-containing serum, and cultured in conventional complete medium (high sugar DMEM culture medium containing 10% fetal bovine serum and 1% double antibody by volume) as the control group, while the experimental group was intervened by adding 10% icariin-containing serum by volume on the basis of above. The proliferative activity of chondrocytes and the expression of collagen type II were tested for the two groups after 24 and 48 hours. The differentiation of bone marrow mesenchymal stem cells and synovial mesenchymal stem cells into chondrocytes in the co-culture system was tested by immunofluorescence staining after 14 days. 
RESULTS AND CONCLUSION: (1) The three kinds of cells grew normally adherently to the wall in different ratios of co-culture, where chondrocytes showed the best proliferative activity and phenotypic ability in the co-culture system when chondrocytes: bone marrow mesenchymal stem cells: synovial mesenchymal stem cells = 2:1:1. (2) Compared with the control group, the proliferative activity and type II collagen expression of chondrocytes in the experimental group were significantly increased after 24 hours (P < 0.01), and the two groups still had difference after 48 hours (P < 0.05). The two groups showed obvious chondrogenic differentiation of bone marrow mesenchymal stem cells and synovial mesenchymal stem cells after 14 days (P < 0.01), and some of the cells appeared round or oval, and the cytoplasmic type II collagen immunofluorescence staining was positive. The fluorescence intensity of the experimental group was significantly higher than that of the control group (P < 0.01). (3) The results showed that the chondrocyte-bone marrow mesenchymal stem cell-synovial mesenchymal stem cell co-culture system could be successfully established by the non-contact co-culture method, and the best chondrocyte proliferative activity and phenotypic ability could be obtained when the cell ratio was 2:1:1. Icariin-containing serum had the promoting effect on chondrocyte proliferation, and chondrogenic differentiation of bone marrow mesenchymal stem cells and synovial mesenchymal stem cells in the system. 

Key words: icariin-containing serum, chondrocyte, bone marrow mesenchymal stem cell, synovial mesenchymal stem cell, co-culture, cell proliferation, type II collagen, chondrogenic differentiation

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