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Design of a Biaxial Mechanical Loading Bioreactor for Tissue Engineering
Published on: April 25, 2013
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What quantitative mechanical loading stimulates in vitro cultivation best?
Jerry Natenstedt1, Aimee C Kok2, Jenny Dankelman3
1Department of Biomechanical Engineering, Faculty of Mechanical, Materials and Maritime Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628 CD, The Netherlands. J.Natenstedt@student.tudelft.nl.
Journal of Experimental Orthopaedics
|February 26, 2016
Summary
Mechanical stimulation enhances in vitro cartilage cultivation. Optimal parameters for enhanced articular cartilage regeneration involve specific loading magnitudes, frequencies, and durations, guiding future therapeutic strategies.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Orthopedic Research
Background:
- Articular cartilage exhibits limited self-repair capabilities.
- Mechanical stimulation is a critical factor influencing in vitro cartilage cultivation.
- Optimal quantitative mechanical stimuli for cartilage regeneration remain unidentified.
Purpose of the Study:
- To conduct a literature review to identify optimal quantitative mechanical stimuli for in vitro articular cartilage cultivation.
- To synthesize existing data on mechanical loading parameters and their effects on cartilage quality.
Main Methods:
- Systematic literature search of Scopus and PubMed databases.
- Inclusion of studies with quantitative mechanical loading data and cartilage quality response.
- Analysis of loading type (hydrostatic/direct compression), magnitude, frequency, and duration.
Main Results:
- Thirty-three studies met the inclusion criteria, utilizing various animal and human cell sources.
- A threshold for enhanced cartilage cultivation was suggested (>20% strain and 0.5 Hz).
- Chondrocyte-seeded constructs demonstrated optimal response to physiological stimuli (5-10 MPa, 1 Hz, intermittent loading for ≥1 week).
Conclusions:
- Specific mechanical loading parameters significantly influence in vitro cartilage cultivation outcomes.
- Physiological mechanical stimuli are crucial for optimizing chondrocyte-seeded constructs.
- Further research is needed to translate these findings into effective in vivo therapies.
