中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (20): 5103-5114.doi: 10.12307/2026.330

• 组织工程血管材料 tissue-engineered vascular materials • 上一篇    下一篇

含Cu2+医用镁合金微弧氧化功能涂层的制备及抗肿瘤、促血管形成效应

林科建1,柴应红2,邹  杰1,黄蕊欣3,方永超3,黄  警4,杨  沁1,罗  霞2,张  红1   

  1. 1成都医学院第一附属医院烧伤整形外科,四川省成都市   610599;2西南石油大学新能源与材料学院,四川省成都市   610500;3成都医学院药学院,四川省成都市   610500;4自贡市第四人民医院,四川省自贡市   643000
  • 接受日期:2025-04-22 出版日期:2026-07-18 发布日期:2025-11-21
  • 通讯作者: 张红,副主任医师,成都医学院第一附属医院 烧伤整形外科,四川省成都市 610599 罗霞,副教授,硕士生导师,西南石油大学新能源与材料学院,四川省成都市 610500
  • 作者简介:林科建,女,1997年生,贵州省毕节市人,汉族,硕士,主要从事临床医学烧伤整形外科方面的研究。
  • 基金资助:
    四川省科技计划项目(2020YFH0151),项目负责人:罗霞;发育与再生四川省重点实验室研究基金(SYS19-09),项目负责人:张红

Preparation of Cu2+-containing microarc oxidation functional coating on medical magnesium alloy and its anti-tumor and angiogenesis-promoting effects

Lin Kejian1, Chai Yinghong2, Zou Jie1, Huang Ruixin3, Fang Yongchao3, Huang Jing4, Yang Qin1, Luo Xia2, Zhang Hong1   

  1. 1Department of Burn and Plastic Surgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610599, Sichuan Province, China; 2School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan Province, China; 3School of Pharmacy, Chengdu Medical College, Chengdu 610500, Sichuan Province, China; 4The Fourth People’s Hospital of Zigong, Zigong 643000, Sichuan Province, China
  • Accepted:2025-04-22 Online:2026-07-18 Published:2025-11-21
  • Contact: Zhang Hong, Associate chief physician, Department of Burn and Plastic Surgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610599, Sichuan Province, China Luo Xia, Associate professor, Master’s supervisor, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, Sichuan Province, China
  • About author:Lin Kejian, MS, Department of Burn and Plastic Surgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610599, Sichuan Province, China
  • Supported by:
    Sichuan Provincial Science and Technology Plan Project, No. 2020YFH0151 (to LX); Sichuan Provincial Key Laboratory of Development and Regeneration Research Fund Project, No. SYS19-09 (to ZH)

摘要:

文题释义:
微弧氧化:是一种在有色金属表面原位生长陶瓷膜的新型表面处理技术,在航空航天、汽车、电子、生物医药等领域有广泛应用前景。
镁合金:是一种以镁为基体加入其他元素(如铝、锌、锰等)组成的合金材料,继承了镁的低密度、高比强度等特性,在航空航天、汽车、电子等众多领域有着广泛应用。

背景:医用镁合金因优异的生物相容性被广泛用作骨肉瘤手术植入物,然而镁合金在人体内的降解速度较快,限制了它在临床上的应用。因此,迫切需要具有功能性的植入材料来解决骨肉瘤手术治疗及局部骨骼功能重建问题。
目的:在镁合金表面制备含Cu2+微弧氧化涂层,表征该材料的抗肿瘤与促血管形成效应。
方法:①采用半固态粉末成型技术制备镁合金(合金中镁与锌的质量比为94∶6)。以含不同质量浓度(0.26,0.32,0.38 g/L)醋酸铜的硅酸盐作为电解液,采用微弧氧化工艺在镁合金表面制备含Cu2+微弧氧化涂层,涂层中Cu2+质量分数分别为0.30%,0.34%,0.69%,表征涂层的形貌、厚度、显微硬度与耐腐蚀性能,以单纯负载微弧氧化涂层的镁合金为对照。②将对照镁合金浸提液、负载含Cu2+微弧氧化涂层的镁合金浸提液分别与大鼠动脉血混合,检测溶血率。将大鼠骨髓间充质干细胞分别接种于负载微弧氧化涂层镁合金与负载含Cu2+微弧氧化涂层镁合金表面,检测细胞黏附情况。将大鼠骨髓间充质干细胞分别与对照镁合金浸提液、负载含Cu2+微弧氧化涂层镁合金浸提液共培养,检测细胞增殖率。③将大鼠骨肉瘤细胞UMR-106分别与对照镁合金浸提液、负载含Cu2+微弧氧化涂层镁合金浸提液共培养,检测细胞增殖率。将UMR-106细胞分别接种于对照镁合金与负载含Cu2+微弧氧化涂层镁合金表面,检测细胞黏附情况。将UMR-106细胞培养上清作为肿瘤条件培养基,在加入(或不加入)肿瘤条件培养基情况下,将大鼠血管内皮细胞分别与对照镁合金浸提液、负载含Cu2+微弧氧化涂层镁合金浸提液共培养,检测细胞增殖率与血管形成。
结果与结论:①Cu2+降低了负载微弧氧化涂层镁合金表面的孔隙率、孔径与腐蚀速率,提高了负载微弧氧化涂层镁合金的表面显微硬度。②CCK-8检测结果显示,当涂层中Cu2+质量分数为0.30%,0.34%时,大鼠骨髓间充质干细胞相对增殖率均大于80%,符合生物安全材料植入标准。负载涂层镁合金的溶血率均低于5%,具有良好的血液相容性。随着涂层中Cu2+质量浓度的升高,镁合金表面黏附的大鼠骨髓间充质干细胞数量减少。③随着涂层中Cu2+质量分数的增加,镁合金表面的UMR-106细胞相对增殖率、黏附数量均减少。在未加入与加入肿瘤条件培养基情况下,当Cu2+质量分数为0.30%,0.34%时,镁合金表面的大鼠血管内皮细胞相对增殖率与血管形成能力良好。结果表明,负载含适量Cu2+微弧氧化涂层的镁合金具有良好的抗肿瘤与促血管形成效应。

https://orcid.org/0009-0000-6196-5613 (林科建) 

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: 医用镁合金, 微弧氧化, 含Cu2+涂层, 骨缺损, 抗肿瘤, 成血管, 骨植入物

Abstract: BACKGROUND: Medical magnesium alloys are widely used as surgical implants for osteosarcoma due to their excellent biocompatibility. However, magnesium alloys degrade rapidly in the human body, which limits their clinical application. Therefore, functional implant materials are urgently needed to solve the problems of surgical treatment of osteosarcoma and local bone function reconstruction.
OBJECTIVE: To prepare a microarc oxidation coating containing Cu2+ on the surface of magnesium alloy and characterize the anti-tumor and angiogenesis-promoting effects of the material. 
METHODS: (1) Magnesium alloy (the mass ratio of magnesium to zinc in the alloy is 94:6) was prepared by semi-solid powder molding technology. Microarc oxidation coatings containing Cu2+ were prepared on the surface of magnesium alloy using silicate containing copper acetate with different mass concentrations (0.26, 0.32, and 0.38 g/L) as electrolyte. The mass fraction of Cu2+ in the coating was 0.30%, 0.34%, and 0.69%, respectively. The morphology, thickness, microhardness and corrosion resistance of the coating were characterized. The magnesium alloy simply loaded with miroarc oxidation coating was used as the control. (2) The extract of control magnesium alloy and the extract of magnesium alloy loaded with microarc oxidation coating containing Cu2+ were mixed with rat arterial blood, and the hemolysis rate was detected. Rat bone marrow mesenchymal stem cells were inoculated on the surface of magnesium alloy loaded with microarc oxidation coating and magnesium alloy loaded with microarc oxidation coating containing Cu2+, and the cell adhesion was detected. Rat bone marrow mesenchymal stem cells were co-cultured with the extract of control magnesium alloy and the extract of magnesium alloy loaded with microarc oxidation coating containing Cu2+, and the cell proliferation rate was detected. (3) Rat osteosarcoma cells UMR-106 were co-cultured with the extract of control magnesium alloy and the extract of magnesium alloy loaded with microarc oxidation coating containing Cu2+, and the cell proliferation rate was detected. UMR-106 cells were inoculated on the surface of control magnesium alloy and magnesium alloy loaded with microarc oxidation coating containing Cu2+, and the cell adhesion was detected. The culture supernatant of UMR-106 cells was used as tumor conditioned medium. In the presence of (or without) tumor conditioned medium, rat vascular endothelial cells were co-cultured with extracts of control magnesium alloy and extracts of magnesium alloy loaded with microarc oxidation coating containing Cu2+, respectively, and the cell proliferation rate and angiogenesis were detected.
RESULTS AND CONCLUSION: (1) Cu2+ reduced the porosity, pore size, and corrosion rate of the surface of magnesium alloy loaded with microarc oxidation coating, and increased the surface microhardness of magnesium alloy loaded with microarc oxidation coating. (2) CCK-8 assay results showed that when the mass fraction of Cu2+ in the coating was 0.30% and 0.34%, the relative proliferation rate of rat bone marrow mesenchymal stem cells was greater than 80%, which met the implantation standard of biosafety materials. The hemolysis rate of magnesium alloy loaded with coating was less than 5%, which had good blood compatibility. With the increase of Cu2+ mass concentration in the coating, the number of rat bone marrow mesenchymal stem cells adhered to the surface of magnesium alloy decreased. (3) With the increase of Cu2+ mass fraction in the coating, the relative proliferation rate and adhesion number of UMR-106 cells on the surface of magnesium alloy decreased. In the absence and addition of tumor conditioned medium, when the mass fraction of Cu2+ was 0.30% and 0.34%, the relative proliferation rate and angiogenesis ability of rat vascular endothelial cells on the surface of magnesium alloy were good. The results show that magnesium alloy loaded with microarc oxidation coating containing an appropriate amount of Cu2+ has good anti-tumor and pro-angiogenesis effects.

Key words: medical magnesium alloy, microarc oxidation, containing Cu2+ coating, bone defect, anti-tumor, angiogenesis, bone implant

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