J Biomed Res.  2013 Jun;14(2):118-124.

The effect of angiogenic factors with HA/PCL scaffold containing matrigel in a rat calvarial defect model

• Kim SE
• Shim KM
• Choi SH
• Kang SS

Abstract

The current study was conducted in order to investigate bone formation using matrigel and angiogenic factors with HA and poly epsilon-caprolactone (HA/PCL) in a rat calvarial defect model. Calvarial defect formation was surgically created in Sprague Dawley rats (n=36). Rats in the control group (CD group, n=6) did not receive a graft. The HA/PCL scaffold was grafted with matrigel (M-HA/PCL group, n=6) or without matrigel (HA/PCL group, n=6); and 100 ng of vascular endothelial growth factor with HA/PCL scaffold containing matrigel (VEGF100 group, n=6), 100 ng (PDGF100 group, n=6) and 300 ng (PDGF300 group, n=6) of PDGF with HA/PCL scaffold containing matrigel were grafted in calvarial defects, respectively. Four weeks after surgery, bone formation was evaluated with micro computed tomography (micro CT) scanning, and histologically. According to the results, bone mineral density was significantly increased in the VEGF100, PDGF100, and PDGF300 groups compared to the HA/PCL group, in which angiogenic factors were not applied. In histological evaluation, more new bone formation around scaffolds was observed in the PDGF100 and the PDGF300 groups, compared with the VEGF100 group. Thus, the results indicate that HA/PCL containing matrigel with VEGF and PDGF is an effective grafting material for enhancement of bone formation in critical-sized bone defects. Especially, due to its price and capacity for bone formation, PDGF may be more effective than VEGF.

Keyword

HA and poly epsilon-caprolactone; angiogenic factor; matrigel; calvarial defect model; rat

MeSH Terms

Angiogenesis Inducing Agents*
Animals
Bone Density
Caproates
Collagen
Drug Combinations
Lactones
Laminin
Osteogenesis
Proteoglycans
Rats*
Rats, Sprague-Dawley
Transplants
Vascular Endothelial Growth Factor A
Angiogenesis Inducing Agents
Caproates
Collagen
Drug Combinations
Lactones
Laminin
Proteoglycans
Vascular Endothelial Growth Factor A