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Repair of cranial bone defects with adipose derived stem cells and coral scaffold in a canine model

Paper ID Volume ID Publish Year Pages File Format Full-Text
10353 681 2007 10 PDF Available
Title
Repair of cranial bone defects with adipose derived stem cells and coral scaffold in a canine model
Abstract

Adipose derived stem cells (ASCs) with osteogenic differentiation potential have been documented as an alternative cell source for bone regeneration. However, most of previous in vivo studies were carried out on small animals along with relatively short-term follow-up. In this study, we investigated the feasibility of using ASCs and coral scaffolds to repair a cranial bone defect in a canine model, and followed up the outcome for up to 6 month. Autologous ASCs isolated from canine subcutaneous fat were expanded, osteogenically induced, and seeded on coral scaffolds. Bilateral full-thickness defects (20 mm×20 mm) of parietal bone were created. The defects were either repaired with ASC-coral constructs (experimental group) or with coral alone (control group). Three-dimensional CT scan showed that new bones were formed in the experimental group at 12 weeks post-implantation, while coral scaffolds were partially degraded in the control group. By radiographic analysis at 24 weeks post-transplantation, it was shown that an average of 84.19±6.45% of each defect volume had been repaired in experimental side, while the control side had only 25.04±18.82% of its volume filled. Histological examination revealed that the defect was repaired by typical bone tissue in experimental side, while only minimal bone formation with fibrous connection was observed in the control group. The successful repair of critical-sized bone defects via the current approach substantiates the potentiality of using ASCs with coral scaffolds for bone regeneration.

Keywords
Bone engineering; Adipose derived stem cells; Coral
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Repair of cranial bone defects with adipose derived stem cells and coral scaffold in a canine model
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 28, Issue 36, December 2007, Pages 5477–5486
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us