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Surgical Retrieval, Isolation and In vitro Expansion of Human Anterior Cruciate Ligament-derived Cells for Tissue Engineering Applications
Published on: April 30, 2014
Histochemical analyses of tissue-engineered human menisci
Andrew J Schoenfeld1, Robin Jacquet, Elizabeth Lowder
1Department of Integrative Medical Sciences, Northeastern Ohio Universities Colleges of Medicine and Pharmacy, Roots town, USA. ajschoen@neoucom.edu
Connective Tissue Research
|October 30, 2009
Summary
Tissue engineering shows promise for meniscal repair. Human meniscal cells on polyglycolic acid scaffolds promoted cell growth and collagen production in mice, forming new meniscal tissue.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Orthopedic Research
Background:
- Meniscal tears are common injuries.
- Current treatments have limitations.
- Tissue engineering offers a promising alternative for meniscal regeneration.
Purpose of the Study:
- To evaluate the potential of tissue engineering for meniscal repair.
- To assess the behavior of human meniscal cells on synthetic scaffolds in vivo.
- To investigate the formation of new meniscal tissue using cell-seeded scaffolds.
Main Methods:
- Meniscal fibrochondrocytes were isolated from human tissue.
- Cells were seeded onto polyglycolic acid (PGA) scaffolds.
- Constructs were implanted subcutaneously in athymic nude mice for 12 weeks.
- Histochemical staining analyzed cell proliferation, viability, and collagen production.
Main Results:
- Significant increase in meniscal fibrochondrocyte proliferation over 12 weeks.
- Cellular consolidation and scaffold hydrolysis observed.
- Increased collagen production over time.
- Constructs showed similarities to native human meniscal tissue in cell morphology and phenotype.
Conclusions:
- Polyglycolic acid scaffolds support meniscal fibrochondrocyte proliferation and phenotype expression.
- This approach demonstrates potential for creating functional meniscal tissue.
- Further research is warranted for clinical applications in meniscal repair.
