中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (7): 1658-1668.doi: 10.12307/2026.591

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

淫羊藿苷缓释微球三维支架对兔骨髓间充质干细胞成骨分化的影响

金东升,赵张红,朱子银,张  森,孙祖延,邓  江   

  1. 遵义医科大学第三附属医院,贵州省遵义市  563000
  • 收稿日期:2024-12-19 修回日期:2025-05-11 接受日期:2025-05-29 出版日期:2026-03-08 发布日期:2025-08-18
  • 通讯作者: 邓江,教授,主任医师,博士生导师,遵义医科大学第三附属医院,贵州省遵义市 563000
  • 作者简介:金东升,男,2000年生,贵州省遵义市人,汉族,遵义医科大学在读硕士,医师,主要从事关节骨软骨损伤修复研究。
  • 基金资助:
    国家自然科学基金项目(81660367),项目负责人:邓江

Effects of icariin-loaded microsphere-three-dimensional scaffold on osteogenic differentiation of rabbit bone marrow mesenchymal stem cells

Jin Dongsheng, Zhao Zhanghong, Zhu Ziyin, Zhang Sen, Sun Zuyan, Deng Jiang   

  1. Third Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • Received:2024-12-19 Revised:2025-05-11 Accepted:2025-05-29 Online:2026-03-08 Published:2025-08-18
  • Contact: Deng Jiang, Professor, Chief physician, Doctoral supervisor, Third Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • About author:Jin Dongsheng, Master candidate, Physician, Third Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 81660367 (to DJ)

摘要:


文题释义:

淫羊藿苷:是一种从传统中药植物淫羊藿中提取的天然黄酮类化合物,淫羊藿苷作为淫羊藿的主要作用成分,因潜在的药理作用而备受关注,特别是在骨骼健康、免疫调节、心血管疾病等方面。
药物缓释:作为一种药物载体递送系统,能够有效地缓慢释放药物并改善药物的生物利用度,尤其是在骨组织工程中,不仅使药物定向释放,还能结合支架材料进一步促进骨组织的修复。

摘要
背景:既往研究表明淫羊藿苷具有良好的促成骨分化潜能,但存在药物易流失、易降解、难以持续作用等缺点。
目的:制备载有淫羊藿苷微球的三维支架,探索最佳载药浓度。
方法:分离培养出兔骨髓间充质干细胞,通过检测细胞表型和多向分化能力进行鉴定。采用复乳溶剂挥发法制备淫羊藿苷载药微球,将其加入丝素蛋白/壳聚糖/纳米羟基磷灰石混合溶液中,通过真空冷冻干燥化学交联法制备含不同浓度(0,0.1,1,10,50,100 μmol/L)淫羊藿苷的载药支架。通过CCK-8法、细胞活死染色、细胞划痕实验、茜素红染色、碱性磷酸酶染色、免疫印迹法检测含不同浓度淫羊藿苷缓释微球的三维支架对骨髓间充质干细胞增殖活性、迁移、成骨分化的影响。

结果与结论:①CCK-8法及细胞活死染色实验显示载淫羊藿苷缓释微球的三维支架能促进骨髓间充质干细胞增殖,细胞活性增加,以10 μmol/L淫羊藿苷组效果最佳(P < 0.05);②茜素红染色、碱性磷酸酶染色结果显示10 μmol/L淫羊藿苷组矿化结节、成骨分化能力高于对照组(P < 0.05);③Western bolt显示淫羊藿苷促进了Ⅰ型胶原、骨钙素、Runt相关转录因子2、血管内皮生长因子蛋白表达,其中以10 μmol/L淫羊藿苷组上调显著(P < 0.05)。结果显示,10 μmol/L淫羊藿苷为最佳载药缓释浓度。

https://orcid.org/0009-0007-5686-6005(金东升)


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: 三维支架, 淫羊藿苷, 缓释微球, 骨髓间充质干细胞, 细胞增殖, 成骨分化

Abstract: BACKGROUND: Previous studies have shown that icariin has good potential in promoting osteoblastic differentiation; however, it has drawbacks such as easy drug loss, degradation, and difficulty in sustaining its effects.
OBJECTIVE: To prepare a three-dimensional scaffold loaded with icariin microspheres and further explore the optimal drug concentration.
METHODS: Rabbit bone marrow mesenchymal stem cells were isolated and cultured, and identified by detecting cell phenotype and multidirectional differentiation ability. Icariin-loaded microspheres were prepared by double emulsion solvent evaporation method, added into silk fibroin/chitosan/nanohydroxyapatite mixed solution. Vacuum freeze-drying chemical cross-linking method was used to prepare drug-loaded scaffolds containing different concentrations (0, 0.1, 1, 10, 50, and 100 μmol/L) of icariin. The effects of sustained-release microsphere three-dimensional scaffolds containing different concentrations of icariin on the proliferation activity, migration, and osteogenic differentiation of bone marrow mesenchymal stem cells were detected by CCK-8 assay, live/dead cell staining, scratch wound assay, Alizarin red staining, alkaline phosphatase staining, and western blot analysis.
RESULTS AND CONCLUSION: (1) The CCK-8 assay and live/dead cell staining experiments indicated that the icariin-loaded sustained-release three-dimensional scaffold promoted the proliferation of bone marrow mesenchymal stem cells and enhanced cell viability, with the 10 μmol/L group showing the strongest effect 
(P < 0.05). (2) Alizarin red staining and alkaline phosphatase staining results suggested that the 10 μmol/L group exhibited higher in vitro osteogenic mineralization compared to the control group (P < 0.05). (3) Western blot analysis demonstrated that icariin promoted the expression of type I collagen, osteocalcin, Runt-related transcription factor 2, and vascular endothelial growth factor protein, with the 10 μmol/L group showing significantly upregulated osteogenesis-related gene expression (P < 0.05). These findings confirm that the optimal drug-loading sustained-release concentration of icariin is determined to be 10 μmol/L.


Key words: three-dimensional scaffold, icariin, sustained-release microsphere, bone marrow mesenchymal stem cell, cell proliferation, osteogenic differentiation

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