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Bio-artificial bone formation model with a radial-flow bioreactor for implant therapy-comparison between two cell culture carriers: porous hydroxyapatite and ?-tricalcium phosphate beads.


ABSTRACT: Bone grafting is necessary before dental implant treatment in patients with jaw bone defects. Currently, autologous bone grafting is a major burden on the patient. However, it is impossible to form a sufficient foundation for the implant with a bone-filling agent alone. It is, therefore, necessary to prepare hybrid artificial bone tissue containing osteoblasts and osteoclasts. In this study, mouse MC3T3-E1 pre-osteoblast cells and human embryonic-derived osteoblastic cell line hFOB1.19 were cultured in radial-flow bioreactors (RFB) to form three-dimensional artificial bone filled with porous beads of ?-tricalcium phosphate (?-TCP) or hydroxyapatite (HA)-which are clinically used as bone-filling agents-as cell culture carriers. When circulation culturing was performed in the growth medium for the first 10-12 days, glucose consumption was increased in the cultures with HA beads in comparison to the cultures with ?-TCP beads. When cultured in the differentiation culture medium during the second half of the culture period, the glucose consumption decreased in the culture with HA beads. A DNA microarray analysis suggested that osteogenesis progressed fast in three-dimensional culture filled with HA beads and that partly differentiation into osteoblasts was prominent in cultures with ?-TCP beads. In the growth process of MC3T3-E1 cells, the vitamin A metabolism was also activated, the synthesis and degradation of retinoic acid was enhanced, and the metabolism of the same process decreased at the end of differentiation in three-dimensional cultures. Three-dimensional circulation culture in RFB is considered to be useful for the formation of hybrid bio-artificial bone tissue.

SUBMITTER: Nomoto H 

PROVIDER: S-EPMC6315002 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Bio-artificial bone formation model with a radial-flow bioreactor for implant therapy-comparison between two cell culture carriers: porous hydroxyapatite and β-tricalcium phosphate beads.

Nomoto Hideki H   Maehashi Haruka H   Shirai Misako M   Nakamura Mariko M   Masaki Takahiro T   Mezaki Yoshihiro Y   Park Jonghyuk J   Aizawa Mamoru M   Ohkawa Kiyoshi K   Yoshida Kiyotsugu K   Matsuura Tomokazu T  

Human cell 20181001 1


Bone grafting is necessary before dental implant treatment in patients with jaw bone defects. Currently, autologous bone grafting is a major burden on the patient. However, it is impossible to form a sufficient foundation for the implant with a bone-filling agent alone. It is, therefore, necessary to prepare hybrid artificial bone tissue containing osteoblasts and osteoclasts. In this study, mouse MC3T3-E1 pre-osteoblast cells and human embryonic-derived osteoblastic cell line hFOB1.19 were cult  ...[more]

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