硅酸盐生物活性玻璃纤维对磷酸钙骨水泥性能的影响  

Effect of silicate bioactive glass fiber on properties of calcium phosphate bone cement

作　　者：卢雨征 熊英杰 单验博 叶健廷 武艳斌 宋继鹏 张垚 林万程 瓮琪瑞 程萱 孟昊业[2] 许文静[2] 彭江[2] 丁立祥 Lu Yuzheng;Xiong Yingjie;Shan Yanbo;Ye Jianting;Wu Yanbin;Song Jipeng;Zhang Yao;Lin Wancheng;Weng Qirui;Cheng Xuan;Meng Haoye;Xu Wenjing;Peng Jiang;Ding Lixiang(Beijing Shijitan Hospital,Capital Medical University,Beijing 100038,China;Research Institute of Orthopedic Medicine Department of Fourth Medical Center of Chinese PLA General Hospital,Beijing 100853,China)

机构地区：[1]首都医科大学附属北京世纪坛医院,北京市100038 [2]解放军总医院第四医学中心骨科医学部研究所,北京市100853

出　　处：《中国组织工程研究》2025年第28期5994-6002,共9页Chinese Journal of Tissue Engineering Research

基　　金：京津冀基础研究合作专项项目(22JCZXJC00130),项目负责人:许文静。

摘　　要：背景:磷酸钙骨水泥的力学性能差、成骨能力弱等问题阻碍了其进一步发展。硅酸盐生物活性玻璃因具有良好的生物活性及成骨能力而备受青睐,同时其纤维结构能够加强材料的力学强度。目的:探究硅酸盐生物活性玻璃纤维复合磷酸钙骨水泥的力学性能、生物相容性及成骨效果。方法:将不同质量百分比(0%,10%,20%)的硅酸盐生物活性玻璃纤维分别加入磷酸钙骨水泥固相中,与液相混合后固化48 h,得到磷酸钙骨水泥与硅酸盐生物活性玻璃纤维复合磷酸钙骨水泥,表征骨水泥的力学性能、凝固时间及离子析出情况。将3组骨水泥浸提液分别与MC3T3-E1细胞共培养,通过CCK-8检测、活死染色、鬼笔环肽染色评估材料的细胞相容性;成骨诱导后,通过碱性磷酸酶染色、茜素红染色、RUNX2免疫荧光染色及RT-PCR检测评估材料的成骨诱导能力。结果与结论:①随着硅酸盐生物活性玻璃纤维含量的增加,骨水泥的抗压强度与抗弯强度均升高,凝固时间延长;将骨水泥浸泡于模拟体液中均可检测到硅离子、钙离子、磷离子析出,并且随着硅酸盐生物活性玻璃纤维含量的增加,骨水泥释放的硅离子、磷离子质量浓度升高,钙离子质量浓度降低;②活死染色、鬼笔环肽染色结果显示,硅酸盐生物活性玻璃纤维复合磷酸钙骨水泥对MC3T3-E1细胞无毒性作用;CCK-8检测结果显示,硅酸盐生物活性玻璃纤维复合磷酸钙骨水泥可促进MC3T3-E1细胞的增殖;③随着骨水泥中硅酸盐生物活性玻璃纤维含量的增加,MC3T3-E1细胞的碱性磷酸酶活性及细胞外钙沉积均增加,RUNX2蛋白表达增加,碱性磷酸酶、骨钙素、骨桥蛋白、RUNX2 mRNA表达增加;④结果表明,硅酸盐生物活性玻璃纤维可增强磷酸钙骨水泥的力学性能与成骨诱导能力,其中以20%硅酸盐生物活性玻璃纤维的效果更明显。BACKGROUND:The development of calcium phosphate bone cement is limited due to its poor mechanical properties and weak osteogenic ability.Silicate bioactive glass is highly favored due to its excellent biological activity and osteogenic ability.Simultaneously,fiber structures can enhance the mechanical strength of materials.OBJECTIVE:To investigate the mechanical properties,biocompatibility,and osteogenic effect of silicate bioactive glass fiber composite calcium phosphate bone cement.METHODS:Different mass percentages(0%,10%,and 20%)of silicate bioactive glass fiber were added to the solid phase of calcium phosphate bone cement,mixed with the liquid phase and cured for 48 hours to obtain silicate bioactive glass fiber composite calcium phosphate bone cement.The mechanical properties,setting time,and ion precipitation of the cement were characterized.The three groups of bone cement extracts were co-cultured with MC3T3-E1 cells.The cell compatibility of the materials was evaluated by CCK-8 assay,live/dead staining,and phalloidin staining.After osteogenic induction,the osteogenic induction ability of the materials was evaluated by alkaline phosphatase staining,alizarin red staining,RUNX2 immunofluorescence staining,and RT-PCR.RESULTS AND CONCLUSION:(1)With the increase of silicate bioactive glass fiber content,the compressive strength and flexural strength of bone cement increased,and the setting time was prolonged.When bone cement was immersed in simulated body fluid,the precipitation of silicon ions,calcium ions,and phosphorus ions could be detected.Moreover,with the increase of silicate bioactive glass fiber content,the mass concentration of silicon ions and phosphorus ions released by bone cement increased,and the mass concentration of calcium ions decreased.(2)Live/dead staining and phalloidin staining results exhibited that silicate bioactive glass fiber composite calcium phosphate bone cement had no toxic effect on MC3T3-E1 cells.CCK-8 assay results showed that silicate bioactive glass fiber composite calcium

关 键 词：骨缺损 骨水泥 硅酸盐生物活性玻璃 磷酸钙骨水泥 骨移植 

分 类 号：R459.9[医药卫生—治疗学] R318.08[医药卫生—临床医学] R687.3