J Korean Assoc Oral Maxillofac Surg.  2007 Oct;33(5):405-418.

The effects of Bio-Oss(R) as a scaffolds during sinus bone graft using mesenchymal stem cells in rabbit

• Lee J
• Sung DH
• Choi JY
• Choi SR
• Cha SR
• Jang JD
• Kim EC

Abstract

Mesenchymal stem cells (MSCs) have been though to be multipotent cells that can replicate that have the potential to differentiate into lineages of mesenchymal tissue including the bone, cartilage, fat, tendon, muscle, and marrow stroma. Especially, scaffolds to support cell-based tissue engineering are critical determinants of clinical efforts to regenerate and repair the body. Selection of a matrix carrier imvolves consideration of the matrix's role as a scaffold for physical support and host tissue integration as well as its ability to support of synergize the osteoinductive program of the implanted mesenchymal stem cell. The aim of this study is to evaluate the effect of autobone and Bio-Oss(R) to adherent mesenchymal stem cells as scaffolds on sinus augmentation with fibrin glue mixture in a rabbit model. 16 New Zealand White rabbits were divided randomly into 4 groups based on their time of sacrifice (1, 2, 4 and 8 weeks). First, mesenchymal stem cells were isolated from iliac crest marrow of rabbits and expanded in vitro. Cell culture was performed in accordance with the technique described by Tsutsumi et al. In the present study, the animals were sacrificed at 1, 2, 4 and 8 weeks after transplantation, and the bone formation ability of each sides was evaluated clinically, radiologically, histologically and histomorphologically. According to the histological observations, autobone scaffolds group showed integrated graft bone with host bone from sinus wall. At 2 and 4 weeks, it showed active newly formed bone and neovascularization. At 8 weeks, lamellae bone was observed in sinus graft material area. Radiologically, autobone with stem cell showed more radiopaque than Bio-Oss(R) scaffolds group. there were significant differences in bone volume between 4 and 8 weeks (p<0.05).

Keyword

Mesenchymal stem cells (MSCs); Autobone scaffolds; Bio-Oss(R) scaffolds; Sinus floor elevation; Tissue engineering; Fibrin glue

MeSH Terms

Animals
Bone Marrow
Cartilage
Cell Culture Techniques
Fibrin Tissue Adhesive
Mesenchymal Stromal Cells*
Osteogenesis
Rabbits
Stem Cells
Tendons
Tissue Engineering
Transplants*
Fibrin Tissue Adhesive