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  • Combining electrospinning and cell sheet technology for the development of a multiscale tissue engineered ligament construct (TELC)

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    PandiyanPUB5931.pdf (1.047Mb)
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    Accepted Manuscript (AM)
    Author(s)
    Vaquette, Cedryck
    Kumar, PT Sudheesh
    Petcu, Eugen Bogdan
    Ivanovski, Saso
    Griffith University Author(s)
    Petcu, Eugen B.
    Ivanovski, Saso
    Pandiyan Thodi, Sudheesh Kumar
    Vaquette, Cedryck
    Year published
    2018
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    Abstract
    Ligament tissue rupture is a common sport injury. Although current treatment modalities can achieve appropriate reconstruction of the damaged ligament, they present significant drawbacks, mostly related to reduced tissue availability and pain associated with tissue harvesting. Stem cell based tissue regeneration combined with electrospun scaffolds represents a novel treatment method for torn ligaments. In this study, a low fiber density polycaprolactone (PCL) electrospun mesh and sheep mesenchymal stem cells (sMSCs) were used to develop tissue engineered ligament construct (TELC) in vitro. The assembly of the TELC was based ...
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    Ligament tissue rupture is a common sport injury. Although current treatment modalities can achieve appropriate reconstruction of the damaged ligament, they present significant drawbacks, mostly related to reduced tissue availability and pain associated with tissue harvesting. Stem cell based tissue regeneration combined with electrospun scaffolds represents a novel treatment method for torn ligaments. In this study, a low fiber density polycaprolactone (PCL) electrospun mesh and sheep mesenchymal stem cells (sMSCs) were used to develop tissue engineered ligament construct (TELC) in vitro. The assembly of the TELC was based on the spontaneous capacity of the cells to organize themselves into a cell sheet once seeded onto the electrospun mesh. The cell sheet matured over 4 weeks and strongly integrated with the low fiber density electrospun mesh which was subsequently processed into a ligament‐like bundle and braided with two other bundles to develop the final construct. Live/dead assay revealed that the handling of the construct through the various phases of assembly did not cause significant difference in viability compared to the control. Mechanical evaluation demonstrated that the incorporation of the cell sheet into the braided construct resulted in significantly modifying the mechanical behavior. A stress/displacement J‐curve was observed for the TELC that was similar to native ligament, whereas this particular feature was not observed in the non‐cellularized specimens. The regenerative potential of the TELC was evaluated ectopically in immunocompromized rats, compared to non cellularized electrospun fiber mesh and this demonstrated that the TELC was well colonized by host cells and that a significant remodelling of the implanted construct was observed. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 399–409, 2018.
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    Journal Title
    Journal of Biomedical Materials Research Part B
    Volume
    106
    Issue
    1
    DOI
    https://doi.org/10.1002/jbm.b.33828
    Copyright Statement
    © 2018 Wiley Periodicals Inc. This is the peer reviewed version of the following article: Combining electrospinning and cell sheet technology for the development of a multiscale tissue engineered ligament construct (TELC), Journal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 106, Issue 1, which has been published in final form at 10.1002/jbm.b.33828. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
    Subject
    Biomedical engineering
    Biomedical engineering not elsewhere classified
    Materials engineering
    Publication URI
    http://hdl.handle.net/10072/382308
    Collection
    • Journal articles

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