中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (34): 5021-5026.doi: 10.3969/j.issn.2095-4344.2016.34.001

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials •    下一篇

镁合金支架对成骨细胞功能的影响

王勇平1,刘小荣2,张炳春3,何耀华4   

  1. 1兰州大学第一医院骨科,甘肃省兰州市  7300002甘肃省第二人民医院检验科,甘肃省兰州市 730000;3中国科学院金属研究所,辽宁省沈阳市 110016;4上海交通大学附属第六人民医院骨科,上海市  200233
  • 收稿日期:2016-05-23 出版日期:2016-08-19 发布日期:2016-08-19
  • 通讯作者: 何耀华,主任医师,上海交通大学附属第六人民医院骨科,上海市 200233
  • 作者简介:王勇平,男,1975年生,甘肃省宁县人,汉族,博士、博士后,副主任医师,主要从事关节外科及骨科生物材料研究。
  • 基金资助:

    兰州大学第一医院科研基金资助项目(ldyyyn2013-01);国家自然科学基金资助项目(8127196181572106)

Effect of magnesium alloy scaffolds on osteoblast function

Wang Yong-ping1, Liu Xiao-rong2, Zhang Bing-chun3, He Yao-hua4   

  1. 1Department of Orthopedics, First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China; 2Department of Laboratory, Second People’s Hospital of Gansu, Lanzhou 730000, Gansu Province, China; 3Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning Province, China; 4Department of Orthopedics, Sixth Affiliated People’s Hospital of Shanghai Jiao Tong University, Shanghai 200233, China
  • Received:2016-05-23 Online:2016-08-19 Published:2016-08-19
  • Contact: He Yao-hua, Chief physician, Department of Orthopedics, Sixth Affiliated People’s Hospital of Shanghai Jiao Tong University, Shanghai 200233, China
  • About author:Wang Yong-ping, M.D., Associate chief physician, Department of Orthopedics, First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China
  • Supported by:

    the Scientific Research Foundation of the First Hospital of Lanzhou University, No. ldyyyn2013-01; the National Natural Science Foundation of China, No. 81271961, 81572106

摘要:

文章快速阅读:

 

文题释义:
镁合金支架材料
:可降解;弹性模量接近人骨,能有效降低应力遮挡效应;良好的生物相容性;是人体不可缺少的重要营养元素,几乎参与人体内所有新陈代谢过程,如参与蛋白质合成、能激活体内多种酶、调节神经肌肉和中枢神经系统活动等。因此,镁合金具备成为骨组织工程支架材料的潜力。
MC3T3-E1细胞:是小鼠前成骨细胞系,该细胞系具备体外培养成骨细胞的各种生物学特性,包括碱性磷酸酶活性、Ⅰ型胶原合成和基质矿化等,可作为良好的成骨细胞体外模型系统。


背景:课题组在前期研究的基础上,将镁合金加工成多孔支架。
目的:探讨镁合金多孔支架对成骨细胞功能的影响。
方法:分别将镁合金多孔支架、纯镁多孔支架与成骨细胞MC3T3-E1共培养,培养6,12,24 h,通过吖啶橙染色观察成骨细胞在支架表面的黏附能力;培养1,3,5 d,利用MTT法评价成骨细胞在支架表面的增殖能力;培养21 d,采用钙黄绿素染色观察支架对成骨细胞矿化功能的影响。
结果与结论:镁合金多孔支架组培养24 h的黏附细胞数量多于纯镁多孔支架组(P < 0.05),培养3,5 d的细胞增殖数量多于纯镁支架组(P < 0.05),培养21 d的支架表面矿化结节数量及面积大于纯镁多孔支架组(P < 0.05)。结果表明,多孔镁合金多孔支架能促进成骨细胞的黏附、增殖及矿化,具有良好的生物功能性。

ORCID: 0000-0002-0663-0375(何耀华)

关键词: 生物材料, 骨生物材料, 镁合金支架, 成骨细胞, 黏附, 增殖, 矿化, 国家自然科学基金

Abstract:

BACKGROUND: On the basis of the previous studies, the magnesium alloy is processed into porous scaffolds.
OBJECTIVE: To investigate the effect of porous magnesium alloy scaffolds on osteoblast function.
METHODS: MC3T3-E1 osteoblastic cell lines were seeded on the porous magnesium alloy scaffold or porous pure magnesium scaffold, respectively. After 6, 12 and 24 hours of incubation, the adhesion ability of osteoblasts on the scaffold was observed by acridine crange staining. At 1, 3 and 5 days after incubation, the proliferation ability of osteoblasts on the scaffold was evaluated by MTT assay; after 21-day incubation, the mineralization of osteoblasts was investigated using calcein staining.
RESULTS AND CONCLUSION: The number of osteoblasts adherent to the porous magnesium alloy scaffold was significantly more than that adherent to the porous pure magnesium scaffold after 24-hour incubation (P < 0.05). And the proliferation assay showed that a significantly higher absorbance was observed on the porous magnesium alloy scaffold than that of the porous pure magnesium scaffold after 3 and 5 days of incubation (P < 0.05). Moreover, the number and area of mineralized nodules formed on the the porous magnesium alloy scaffold were greater than those on the porous pure magnesium scaffold after 21-day incubation (P < 0.05). These results show that the porous magnesium alloy scaffold with an excellent bioactivity can promote the adhesion, proliferation and mineralization abilities of osteoblasts.

Key words: Magnesium, Osteoblasts, Tissue Engineering

中图分类号: