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论文类型：期刊论文

发表时间：2016-10-01

发表刊物：ANIMAL CELLS AND SYSTEMS

收录刊物：SCIE、Scopus

卷号：20

期号：5

页面范围：276-281

ISSN号：1976-8354

关键字：Bio-derived scaffold; osteoblast; fabrication; bioreactor; repair

摘要：Fabrication and transplantation of tissue-engineered bones in a rotating wall vessel bioreactor (RWVB) was studied in the present study aiming to repair segmental bone defects. Osteoblasts were transfected with green fluorescent protein prior to seeding on bio-derived porous bone scaffolds at a density of 1x10(6)cells/mL and cultured in an RWVB for one week. For comparison, constructs were also cultured in a static condition. Morphology and structure of fabricated bones were examined using an inverted microscope, scanning electron microscope and histology analysis via hematoxylin-eosin and toluidine blue staining. Moreover, an animal model for repairing segmental bone defects of a Zelanian rabbit was used to assess the efficacy and biosafety of fabricated bones. In conclusion, tissue-engineered bones grew favorably in RWVB. In animal study, a preliminary repair of bone defects was noticed only in the experimental group after 4 weeks of implantation. Using RWVB, the fabricated tissue-engineered bone constructs were approved with better bio-capability in repairing the segmental bone defect.