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Osteoblastic cell proliferation with uniform distribution in a large scaffold using radial-flow bioreactor
Taichi Arano1, Toru Sato, Kenichi Matsuzaka
1Department of Crown and Bridge Prosthodontics, Oral Health Science Center HRC7, Tokyo Dental College, Chiba, Japan.
Tissue Engineering. Part C, Methods
|April 7, 2010
Summary
The radial-flow bioreactor (RFB) promotes uniform osteoblastic cell growth on large scaffolds, showing a fivefold increase in proliferation. This demonstrates the RFB
Area of Science:
- Tissue Engineering
- Biomedical Engineering
- Regenerative Medicine
Background:
- Three-dimensional (3D) cultivation is crucial for tissue engineering.
- In vitro physiological cell stimulation in bioreactors enhances cell growth.
- Large bone defect regeneration requires advanced scaffolding techniques.
Purpose of the Study:
- To evaluate osteoblastic cell proliferation and distribution on large scaffolds using a radial-flow bioreactor (RFB).
- To assess the potential of RFB for jaw bone regeneration applications.
Main Methods:
- Mouse osteoblastic cells (MC3T3-E1) were seeded onto collagen sheets and precultured.
- Precultured sheets were placed in an RFB for dynamic cultivation (1 week).
- Static cultivation and single culture served as controls for comparison.
Main Results:
- Dynamic cultivation in RFB resulted in a fivefold increase in cell proliferation compared to static controls.
- Uniform cell distribution was observed throughout the 3D scaffolds under RFB conditions.
- Cell proliferation was fourfold higher than in single cultures.
Conclusions:
- The radial-flow bioreactor (RFB) supports uniform and enhanced osteoblastic cell proliferation on large 3D scaffolds.
- RFB shows significant potential for tissue engineering applications, particularly in regenerating large bone defects.
- Dynamic cultivation in RFB is superior to static methods for osteoblastic cell expansion in tissue engineering.
