期刊
BIOMATERIALS ADVANCES
卷 139, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.bioadv.2022.212937
关键词
Template; Mineralization; hBMSCs; Bone tissue engineering
资金
- National Natural Science Foundation of China [31571008, 31971284]
- China Scholarship Council [202006780028]
In this study, a novel tissue-engineered bone was developed using templated human bone mesenchymal stem cells (hBMSCs) mineralization. The resulting bone exhibited an ordered alignment of collagen fibers and a high degree of osteomimicry in terms of composition and structure. When tested in a rat cranial bone defect model, the tissue-engineered bone significantly promoted new bone formation and integration with the host bone.
To develop bone implants, a novel tissue-engineered bone was constructed via templated human bone mesenchymal stem cells (hBMSCs) mineralization. Firstly, an osteoid-like template (Os-template) with aligned collagen fibers was prepared and followed by seeding hBMSCs to mimic the process of bone formation. After being cultured over weeks, the cells produced collagen fibers in an orderly aligned osteomorphic fashion. Further, a novel tissue-engineered bone with mineralized collagen fiber (mOs-ECM) was subsequently achieved after cell mineralization, showing a high degree of osteomimicry in terms of both composition and structure. When applied to the rat cranial bone defect model, the mOs-ECM significantly promoted the new bone formation and fused with the host bone. The study indicated that microscopic cell mineralization could be guided by artificially designed templates and successfully fabricated a macroscopic implant with a pronounced effect on bone repairing.
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