中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (14): 3494-3503.doi: 10.12307/2026.630

• 组织工程骨材料 tissue-engineered bone • 上一篇    下一篇

磁性生物活性玻璃支架的磁热抗肿瘤与促成骨性能

李青山1,2,李润萌2,高宇阳2,韩  纲1,3,陈继营1,郭全义1,2   

  1. 解放军医学院,北京市  100853;解放军总医院第四医学中心,2骨科研究所,国家骨科与运动康复临床医学研究中心,骨科再生医学北京市重点实验室,全军骨科战创伤重点实验室,3骨肿瘤科,北京市  100853
  • 收稿日期:2025-03-21 接受日期:2025-06-12 出版日期:2026-05-18 发布日期:2025-09-06
  • 通讯作者: 郭全义,博士,主任医师,教授,解放军医学院,北京市100853;解放军总医院第四医学中心骨科研究所,国家骨科与运动康复临床医学研究中心,骨科再生医学北京市重点实验室,全军骨科战创伤重点实验室,北京市 100853 陈继营,博士,主任医师,教授,解放军医学院,北京市 100853
  • 作者简介:李青山,男,2000年生,湖南省邵阳市人,汉族,解放军医学院在读硕士,主要从事骨与软骨组织工程修复研究。
  • 基金资助:
    国家重点研发计划项目(2021YFC2400504),项目负责人:韩纲

Magnetocaloric antitumor and osteogenic properties of magnetic bioactive glass scaffolds

Li Qingshan1, 2, Li Runmeng2, Gao Yuyang2, Han Gang1, 3, Chen Jiying1, Guo Quanyi1, 2   

  1. 1Chinese People's Liberation Army Medical School, Beijing 100853, China; 2Institute of Orthopedics, Fourth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Orthopedics and Sports Rehabilitation, Beijing Key Laboratory of Orthopedic Regenerative Medicine, Key Laboratory of Musculoskeletal Trauma & War Injuries, Beijing 100853, China; 3Department of Bone Tumors, Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
  • Received:2025-03-21 Accepted:2025-06-12 Online:2026-05-18 Published:2025-09-06
  • Contact: Guo Quanyi, MD, Chief physician, Professor, Chinese People's Liberation Army Medical School, Beijing 100853, China; Institute of Orthopedics, Fourth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Orthopedics and Sports Rehabilitation, Beijing Key Laboratory of Orthopedic Regenerative Medicine, Key Laboratory of Musculoskeletal Trauma & War Injuries, Beijing 100853, China Chen Jiying, MD, Chief physician, Professor, Chinese People's Liberation Army Medical School, Beijing 100853, China
  • About author:Li Qingshan, Master candidate, Chinese People's Liberation Army Medical School, Beijing 100853, China; Institute of Orthopedics, Fourth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Orthopedics and Sports Rehabilitation, Beijing Key Laboratory of Orthopedic Regenerative Medicine, Key Laboratory of Musculoskeletal Trauma & War Injuries, Beijing 100853, China
  • Supported by:
    National Key Research & Development Program, No. 2021YFC2400504 (to HG)

摘要:

文题释义:
生物活性玻璃支架:是一种用于骨组织工程的支架材料,具有良好的生物相容性。生物活性玻璃支架植入人体后会与体液反应,逐渐降解的同时释放硅、钙、磷等离子,形成与人体骨骼成分相近的羟基磷灰石层,促进成骨细胞的黏附和骨再生。
磁热效应:磁性纳米颗粒在交变磁场作用下可产生热效应,为抗肿瘤治疗提供了一种新策略。这种热疗方法具有非侵入性、低毒性、局部产热和高穿透性的特点,为深部组织疾病的治疗提供了一种新的、有效的方法。

背景:随着组织工程的发展,设计一种能够抗肿瘤预防复发和具有良好成骨性能的生物活性支架具有重要意义。
目的:评估负载磁性水凝胶硼硅酸盐生物活性玻璃支架的生物相容性、磁热抗肿瘤性能及促成骨分化潜力。 
方法:通过复合甲基丙烯酸酐化明胶与磁性四氧化三铁纳米颗粒制备磁性水凝胶,将磁性水凝胶负载于硼硅酸盐生物活性玻璃支架上制备磁性生物活性玻璃支架,表征磁性生物活性玻璃支架的形貌与磁热性能。采用硼硅酸盐生物活性玻璃支架、磁性生物活性玻璃支架浸提液分别培养大鼠骨髓间充质干细胞,通过CCK-8实验与死活染色评估支架的生物相容性;成骨诱导后,通过碱性磷酸酶染色、茜素红染色、成骨基因表达qRT-PCR检测评估支架的促成骨性能。将人骨肉瘤细胞分别与硼硅酸盐生物活性玻璃支架、磁性生物活性玻璃支架与交变磁场干预下的磁性生物活性玻璃支架共培养,通过CCK-8实验、死活染色、流式细胞凋亡检测评估支架的抗肿瘤性能。
结果与结论:①扫描电镜下可见携带磁性纳米颗粒水凝胶稳定负载在硼硅酸盐生物活性玻璃支架孔隙中,磁滞曲线和磁热曲线显示磁性生物活性玻璃支架具备良好的磁热性能;②CCK-8实验和死活染色实验显示,磁性生物活性玻璃支架与硼硅酸盐生物活性玻璃支架无明显的细胞毒性,均可促进大鼠骨髓间充质干细胞的增殖,其中磁性生物活性玻璃支架的促进作用更明显;成骨诱导条件下,两组支架均可促进大鼠骨髓间充质干细胞的成骨分化,提升骨钙素和Runx2的mRNA表达,其中磁性生物活性玻璃支架的促进作用更明显;③CCK-8实验、死活染色、流式细胞凋亡检测显示,与硼硅酸盐生物活性玻璃支架、磁性生物活性玻璃支架相比,交变磁场干预下的磁性生物活性玻璃支架可抑制人骨肉瘤细胞的增殖活性、诱导细胞凋亡。结果表明:磁性生物活性玻璃支架具备良好的磁热性能、促成骨性能与抗肿瘤性能。
https://orcid.org/0009-0005-2174-2139(李青山)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料;口腔生物材料;纳米材料;缓释材料;材料相容性;组织工程

关键词: 四氧化三铁纳米颗粒">, 水凝胶">, 磁热性能">, 硼硅酸盐">, 生物活性玻璃支架">, 抗肿瘤">, 成骨

Abstract: BACKGROUND: With the development of tissue engineering, it is of great significance to design a bioactive scaffold that prevents tumor recurrence and possesses good osteogenic properties.
OBJECTIVE: To evaluate the biocompatibility, magnetic thermal antitumor properties, and osteogenic differentiation potential of borosilicate bioactive glass scaffolds loaded with magnetic hydrogels.
METHODS: Magnetic hydrogels were prepared by combining methacrylated gelatin with magnetic ferric oxide nanoparticles and were loaded onto borosilicate bioactive glass scaffolds to create magnetic bioactive glass scaffolds. The morphology and magnetothermal properties of the magnetic bioactive glass scaffolds were characterized. Rat bone marrow mesenchymal stem cells were cultured with borosilicate bioactive glass scaffolds and magnetic bioactive glass scaffold extracts, respectively. The biocompatibility of the scaffolds was evaluated by CCK-8 assay and live/death staining. After osteogenic induction, the osteogenic properties of the scaffolds were evaluated by alkaline phosphatase staining, alizarin red staining, and qRT-PCR detection of osteogenic gene expression. Human osteosarcoma cells were co-cultured with borosilicate bioactive glass scaffolds, magnetic bioactive glass scaffolds, and magnetic bioactive glass scaffolds under alternating magnetic field intervention. The anti-tumor properties of the scaffolds were evaluated by CCK-8 assay, live/death staining, and flow cytometry apoptosis detection.
RESULTS AND CONCLUSION: (1) Scanning electron microscopy showed that the hydrogel carrying magnetic nanoparticles was stably loaded in the pores of the borosilicate bioactive glass scaffold. The hysteresis and magnetic thermal curves indicated that the magnetic bioactive glass scaffolds exhibited good magnetic thermal properties. (2) CCK-8 assay and live/dead staining the magnetic bioactive glass scaffold and the borosilicate bioactive glass scaffold had no obvious cytotoxicity and both promoted the proliferation of rat bone marrow mesenchymal stem cells, among which the magnetic bioactive glass scaffold had a more obvious promoting effect. Under osteogenic induction conditions, both groups of scaffolds could promote the osteogenic differentiation of rat bone marrow mesenchymal stem cells and increase the mRNA expression of osteocalcin and Runx2, among which the magnetic bioactive glass scaffold had a more obvious promoting effect. (3) CCK-8 assay, live/death staining, and flow cytometry apoptosis detection showed that compared with the borosilicate bioactive glass scaffold and the magnetic bioactive glass scaffold, the magnetic bioactive glass scaffold under the intervention of alternating magnetic field could inhibit the proliferation activity of human osteosarcoma cells and induce cell apoptosis. The results showed that the magnetic bioactive glass scaffold had good magnetocaloric properties, osteogenic properties and anti-tumor properties.

Key words: ferric oxide nanoparticle">, hydrogel">, magnetic thermal property">, borosilicate">, bioactive glass scaffold">, antitumor">, osteogenesis

中图分类号: