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Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy 5/2015

01.05.2015 | Experimental Study

PVA-chitosan composite hydrogel versus alginate beads as a potential mesenchymal stem cell carrier for the treatment of focal cartilage defects

verfasst von: Havva Dashtdar, Malliga Raman Murali, Azlina Amir Abbas, Abdulrazzaq Mahmod Suhaeb, Lakshmi Selvaratnam, Liang Xin Tay, Tunku Kamarul

Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy | Ausgabe 5/2015

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Abstract

Purpose

To investigate whether mesenchymal stem cells (MSCs) seeded in novel polyvinyl alcohol (PVA)-chitosan composite hydrogel can provide comparable or even further improve cartilage repair outcomes as compared to previously established alginate-transplanted models.

Methods

Medial femoral condyle defect was created in both knees of twenty-four mature New Zealand white rabbits, and the animals were divided into four groups containing six animals each. After 3 weeks, the right knees were transplanted with PVA-chitosan-MSC, PVA-chitosan scaffold alone, alginate-MSC construct or alginate alone. The left knee was kept as untreated control. Animals were killed at the end of 6 months after transplantation, and the cartilage repair was assessed through Brittberg morphological score, histological grading by O’Driscoll score and quantitative glycosaminoglycan analysis.

Results

Morphological and histological analyses showed significant (p < 0.05) tissue repair when treated with PVA-chitosan-MSC or alginate MSC as compared to the scaffold only and untreated control. In addition, safranin O staining and the glycosaminoglycan (GAG) content were significantly higher (p < 0.05) in MSC treatment groups than in scaffold-only or untreated control group. No significant difference was observed between the PVA-chitosan-MSC- and alginate-MSC-treated groups.

Conclusion

PVA-chitosan hydrogel seeded with mesenchymal stem cells provides comparable treatment outcomes to that of previously established alginate-MSC construct implantation. This study supports the potential use of PVA-chitosan hydrogel seeded with MSCs for clinical use in cartilage repair such as traumatic injuries.
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Metadaten
Titel
PVA-chitosan composite hydrogel versus alginate beads as a potential mesenchymal stem cell carrier for the treatment of focal cartilage defects
verfasst von
Havva Dashtdar
Malliga Raman Murali
Azlina Amir Abbas
Abdulrazzaq Mahmod Suhaeb
Lakshmi Selvaratnam
Liang Xin Tay
Tunku Kamarul
Publikationsdatum
01.05.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Knee Surgery, Sports Traumatology, Arthroscopy / Ausgabe 5/2015
Print ISSN: 0942-2056
Elektronische ISSN: 1433-7347
DOI
https://doi.org/10.1007/s00167-013-2723-5

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