Related Experiment Video
Updated: Jun 19, 2026
09:07
A Human Bone Marrow 3D Model to Investigate the Dynamics and Interactions Between Resident Cells in Physiological or Tumoral Contexts
Published on: December 16, 2022
Human tissue-engineered bone produced in clinically relevant amounts using a semi-automated perfusion bioreactor
F W Janssen1, R van Dijkhuizen-Radersma, A Van Oorschot
1Institute for Biomedical Technology, University of Twente, AB Bilthoven, The Netherlands. f.w.janssen@tnw.utwente.nl
Journal of Tissue Engineering and Regenerative Medicine
|October 17, 2009
Summary
This study demonstrates a semi-automated perfusion bioreactor effectively produces clinically relevant human tissue-engineered bone. The system supports cell proliferation and osteogenic differentiation, yielding bone with significant therapeutic potential.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Producing clinically relevant quantities of human tissue-engineered bone remains a challenge.
- Perfusion bioreactor systems offer potential for enhanced cell growth and tissue development.
Purpose of the Study:
- To evaluate a semi-automated perfusion bioreactor for producing clinically relevant human tissue-engineered bone.
- To assess cell viability, distribution, proliferation, and osteogenic differentiation within the system.
Main Methods:
- Human bone marrow stromal cells (hBMSCs) were cultured in a perfusion bioreactor using biphasic calcium phosphate scaffolds.
- Cell load, distribution, and viability were assessed using staining techniques (methylene blue, MTT).
- Proliferation was monitored via online oxygen measurements; tissue development was visualized using SEM.
Main Results:
- A homogeneous layer of viable hBMSCs covered the scaffolds after 20 days.
- Online oxygen measurements confirmed cell proliferation.
- SEM revealed interconnected hybrid constructs with dense extracellular matrix, indicating osteogenic differentiation (collagen type I, ALP expression).
- No significant differences in osteogenic gene expression or bone formation were observed between static and dynamic culture conditions.
Conclusions:
- The semi-automated perfusion bioreactor system is capable of producing clinically relevant, viable human tissue-engineered bone.
- The engineered bone exhibits potential for bone formation after implantation.
- Dynamic culture in this system supports osteogenic differentiation comparable to static methods.
