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Evaluation of a co-culture of rapidly isolated chondrocytes and stem cells seeded on tri-layered collagen-based scaffolds in a caprine osteochondral defect model

Levingstone, Tanya J. orcid logoORCID: 0000-0002-9751-2314, Sheehy, Eamon J. orcid logoORCID: 0000-0002-2902-4562, Moran, Conor J. orcid logoORCID: 0000-0001-6808-5766, Cunniffe, Gráinne M. orcid logoORCID: 0000-0001-7085-1706, Diaz Payno, Pedro J. orcid logoORCID: 0000-0002-3744-9093, Brady, Robert T., Almeida, Henrique V. orcid logoORCID: 0000-0002-3036-3211, Carroll, Simon F., O’Byrne, John orcid logoORCID: 0000-0002-7705-4344, Kelly, Daniel J., Brama, Pieter AJ. and O’ Brien, Fergal J. (2022) Evaluation of a co-culture of rapidly isolated chondrocytes and stem cells seeded on tri-layered collagen-based scaffolds in a caprine osteochondral defect model. Biomaterials and Biosystems, 8 . ISSN 2666-5344

Abstract
Cartilage has poor regenerative capacity and thus damage to the joint surfaces presents a major clinical challenge. Recent research has focussed on the development of tissue-engineered and cell-based approaches for the treatment of cartilage and osteochondral injuries, with current clinically available cell-based approaches including autologous chondrocyte implantation and matrix-assisted autologous chondrocyte implantation. However, these approaches have significant disadvantages due to the requirement for a two-stage surgical procedure and an in vitro chondrocyte expansion phase which increases logistical challenges, hospital times and costs. In this study, we hypothesized that seeding biomimetic tri-layered scaffolds, with proven regenerative potential, with chondrocyte/infrapatellar fat pad stromal cell co-cultures would improve their regenerative capacity compared to scaffolds implanted cell-free. Rapid cell isolation techniques, without the requirement for long term in vitro culture, were utilised to achieve co-cultures of chondrocytes and stromal cells and thus overcome the limitations of existing cell-based techniques. Cell-free and cell-seeded scaffolds were implanted in osteochondral defects, created within the femoral condyle and trochlear ridge, in a translational large animal goat model. While analysis showed trends towards delayed subchondral bone healing in the cell-seeded scaffold group, by the 12 month timepoint the cell-free and cell-seeded groups yield cartilage and bone tissue with comparable quality and quantity. The results of the study reinforce the potential of the biomimetic tri-layered scaffold to repair joint defects but failed to demonstrate a clear benefit from the addition of the CC/FPMSC co-culture to this scaffold. Taking into consideration the additional cost and complexity associated with the cell-seeded scaffold approach, this study demonstrates that the treatment of osteochondral defects using cell-free tri-layered scaffolds may represent a more prudent clinical approach.
Metadata
Item Type:Article (Published)
Refereed:Yes
Additional Information:Article number: 100066
Uncontrolled Keywords:Tissue engineering; Collagen; In vivo; Osteochondral; Cartilage; Caprine model
Subjects:Biological Sciences > Biochemistry
Biological Sciences > Biotechnology
Engineering > Biomedical engineering
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Mechanical and Manufacturing Engineering
Research Institutes and Centres > Advanced Processing Technology Research Centre (APTRC)
Publisher:Elsevier
Official URL:https://doi.org/10.1016/j.bbiosy.2022.100066
Copyright Information:© 2022 The Authors.
Funders:Science Foundation Ireland (SFI)/ Health Research Board (HRB) Translational Research Award (TRA/2011/19), EU BlueHuman Interreg Atlantic Area Project (EAPA_151/2016), European Research Council (grant agreement no. 788,753-ReCaP), Irish Research Council (GOIPG/2015/3186)
ID Code:29581
Deposited On:07 Feb 2024 15:36 by Thomas Murtagh . Last Modified 07 Feb 2024 15:36
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