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Repair of osteochondral defects in the minipig model by OPF hydrogel loaded with adipose-derived mesenchymal stem cells

Laura De Girolamo*, Stefania Niada, Elena Arrigoni, Alessia Di Giancamillo, Cinzia Domeneghini, Mahrokh Dadsetan, Michael J. Yaszemski, Dario Gastaldi, Pasquale Vena, Matteo Taffetani, Alberto Zerbi, Valerio Sansone, Giuseppe M. Peretti, Anna T. Brini

*Corresponding author for this work

    Research output: Contribution to journalArticle (Academic Journal)peer-review

    38 Citations (Scopus)

    Abstract

    Aim: Critical knee osteochondral defects in seven adult minipigs were treated with oligo(polyethylene glycol)fumarate (OPF) hydrogel combined with autologous or human adipose-derived stem cells (ASCs), and evaluated after 6 months. Methods: Four defects were made on the peripheral part of right trochleas (n = 28), and treated with OPF scaffold alone or pre-seeded with ASCs. Results: A better quality cartilage tissue characterized by improved biomechanical properties and higher collagen type II expression was observed in the defects treated by autologous or human ASC-loaded OPF; similarly this approach induced the regeneration of more mature bone with upregulation of collagen type I expression. Conclusion: This study provides the evidence that both porcine and human adipose-derived stem cells associated to OPF hydrogel allow improving osteochondral defect regeneration in a minipig model.

    Original languageEnglish
    Pages (from-to)135-151
    Number of pages17
    JournalRegenerative Medicine
    Volume10
    Issue number2
    DOIs
    Publication statusPublished - 1 Mar 2015

    Bibliographical note

    Publisher Copyright:
    © 2015 Future Medicine Ltd.

    Keywords

    • adipose-derived stem cells
    • bone
    • cartilage
    • oligo(polyethylene glycol)fumarate hydrogel
    • osteochondral defects

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