Improved Bone Regeneration With Multiporous PLGA Scaffold and BMP-2-Transduced Human Adipose-Derived Stem Cells by Cell-Permeable Peptide
Related Experiment Video
Updated: Mar 11, 2026
Use of Human Perivascular Stem Cells for Bone Regeneration
Published on: May 25, 2012
Suhyun Park1, Hyun-A Heo, Kwang-Bae Lee
1*Assistant Professor, Department of Oral and Maxillofacial Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea. †Graduate Student, Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul, Korea. ‡Professor, Department of Oral and Maxillofacial Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Objective:
Currently, much work has focused on the engineering of bone using adipose-derived stem cells (ADSCs), which differentiate into osteogenic cells. This study was conducted to assess the bone-regenerating capacity of ADSCs with genetic modification.
Materials And Methods:
ADSCs were cultured and transduced with recombinant adenovirus-expressing bone morphogenetic protein-2 (rAd/BMP-2). Two 5-mm full-thickness bone defects were created on the parietal bones of 24 rats. The defects were left empty (n = 12), restored with a scaffold alone (n = 12), transplanted with ADSCs in osteogenic media (n = 12), or transplanted with rAd/BMP-2-transduced ADSCs (n = 12). Six defects from each group were assessed by histologic observation, histomorphometric analysis, and microcomputed tomography (micro-CT) imaging at 4 and 8 weeks after transplantation.
Results:
Increased new bone formation was observed in the rAd/BMP-2-transduced ADSC groups, compared with the other groups. On micro-CT, significant differences were noted in bone volume-to-tissue volume ratios between rAd/BMP-2-transduced ADSCs group and the other groups at both time points (P < 0.05).
Conclusion:
The result demonstrates that transferring BMP-2 promotes the osteogenic differentiation of ADSCs and enhances bone regeneration. Under limitation of this study, genetic modification of ADSCs with BMP-2 could be adopted in clinical application.
More Related Videos
11:31Repair of a Critical-sized Calvarial Defect Model Using Adipose-derived Stromal Cells Harvested from Lipoaspirate
Published on: October 31, 2012
09:34Visualizing Angiogenesis by Multiphoton Microscopy In Vivo in Genetically Modified 3D-PLGA/nHAp Scaffold for Calvarial Critical Bone Defect Repair
Published on: September 7, 2017