TY - JOUR
T1 - Efficacy of honeycomb TCP-induced microenvironment on bone tissue regeneration in craniofacial area
AU - Watanabe, Satoko
AU - Takabatake, Kiyofumi
AU - Tsujigiwa, Hidetsugu
AU - Watanabe, Toshiyuki
AU - Tokuyama, Eijiro
AU - Ito, Satoshi
AU - Nagatsuka, Hitoshi
AU - Kimata, Yoshihiro
N1 - Funding Information:
This study was supported by a Grant-in-Aid for Scientific Research(C), 15K20309 provided by the Japan Society for Promotion of Science (JSPS).
Publisher Copyright:
© Ivyspring International Publisher.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Artificial bone materials that exhibit high biocompatibility have been developed and are being widely used for bone tissue regeneration. However, there are no biomaterials that are minimally invasive and safe. In a previous study, we succeeded in developing honeycomb β-tricalcium phosphate (β-TCP) which has through-and-through holes and is able to mimic the bone microenvironment for bone tissue regeneration. In the present study, we investigated how the difference in hole-diameter of honeycomb β-TCP (hole-diameter: 75, 300, 500, and 1600 μm) influences bone tissue regeneration histologically. Its osteoconductivity was also evaluated by implantation into zygomatic bone defects in rats. The results showed that the maximum bone formation was observed on the β-TCP with hole-diameter 300μm, included bone marrow-like tissue and the pattern of bone tissue formation similar to host bone. Therefore, the results indicated that we could control bone tissue formation by creating a bone microenvironment provided by β-TCP. Also, in zygomatic bone defect model with honeycomb β-TCP, the result showed there was osseous union and the continuity was reproduced between the both edges of resected bone and β-TCP, which indicated the zygomatic bone reproduction fully succeeded. It is thus thought that honeycomb β-TCP may serve as an excellent biomaterial for bone tissue regeneration in the head, neck and face regions, expected in clinical applications.
AB - Artificial bone materials that exhibit high biocompatibility have been developed and are being widely used for bone tissue regeneration. However, there are no biomaterials that are minimally invasive and safe. In a previous study, we succeeded in developing honeycomb β-tricalcium phosphate (β-TCP) which has through-and-through holes and is able to mimic the bone microenvironment for bone tissue regeneration. In the present study, we investigated how the difference in hole-diameter of honeycomb β-TCP (hole-diameter: 75, 300, 500, and 1600 μm) influences bone tissue regeneration histologically. Its osteoconductivity was also evaluated by implantation into zygomatic bone defects in rats. The results showed that the maximum bone formation was observed on the β-TCP with hole-diameter 300μm, included bone marrow-like tissue and the pattern of bone tissue formation similar to host bone. Therefore, the results indicated that we could control bone tissue formation by creating a bone microenvironment provided by β-TCP. Also, in zygomatic bone defect model with honeycomb β-TCP, the result showed there was osseous union and the continuity was reproduced between the both edges of resected bone and β-TCP, which indicated the zygomatic bone reproduction fully succeeded. It is thus thought that honeycomb β-TCP may serve as an excellent biomaterial for bone tissue regeneration in the head, neck and face regions, expected in clinical applications.
KW - Bone microenvironment
KW - Bone morphogenetic protein-2
KW - Bone tissue regeneration
KW - Honeycomb β-TCP
KW - Pore size
UR - http://www.scopus.com/inward/record.url?scp=84971375788&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84971375788&partnerID=8YFLogxK
U2 - 10.7150/ijms.15560
DO - 10.7150/ijms.15560
M3 - Article
C2 - 27279797
AN - SCOPUS:84971375788
VL - 13
SP - 466
EP - 476
JO - International Journal of Medical Sciences
JF - International Journal of Medical Sciences
SN - 1449-1907
IS - 6
ER -