Počet záznamů: 1  

Autologous Mesenchymal Stromal Cells Immobilized in Plasma-Based Hydrogel for the Repair of Articular Cartilage Defects in a Large Animal Model

  1. 1.
    0577426 - ÚEM 2024 RIV CZ eng J - Článek v odborném periodiku
    Berounský, K. - Vacková, I. - Vištejnová, L. - Malečková, A. - Havránková, J. - Klein, P. - Kolinko, Y. - Petrenko, Yuriy - Pražák, Š. - Hanák, F. - Přidal, J. - Havlas, V.
    Autologous Mesenchymal Stromal Cells Immobilized in Plasma-Based Hydrogel for the Repair of Articular Cartilage Defects in a Large Animal Model.
    Physiological Research. Roč. 72, č. 4 (2023), s. 485-495. ISSN 0862-8408. E-ISSN 1802-9973
    Grant CEP: GA MZd(CZ) NV19-06-00355
    Institucionální podpora: RVO:68378041
    Klíčová slova: Bone marrow mesenchymal stromal cells * Scaffold Osteochondral defect * Minipig * Implantation
    Obor OECD: Orthopaedics
    Impakt faktor: 1.9, rok: 2023
    Způsob publikování: Open access
    https://www.biomed.cas.cz/physiolres/pdf/2023/72_485.pdf

    The treatment of cartilage defects in trauma injuries and degenerative diseases represents a challenge for orthopedists. Advanced mesenchymal stromal cell (MSC)-based therapies are currently of interest for the repair of damaged cartilage. However, an approved system for MSC delivery and maintenance in the defect is still missing. This study aimed to evaluate the effect of autologous porcine bone marrow MSCs anchored in a commercially available polyglycolic acid-hyaluronan scaffold (Chondrotissue (R)) using autologous blood plasma-based hydrogel in the repair of osteochondral defects in a large animal model. The osteochondral defects were induced in twenty-four minipigs with terminated skeletal growth. Eight animals were left untreated, eight were treated with Chondrotissue (R) and eight received Chondrotissue (R) loaded with MSCs. The animals were terminated 90 days after surgery. Macroscopically, the untreated defects were filled with newly formed tissue to a greater extent than in the other groups. The histological evaluations showed that the defects treated with Chondrotissue (R) and Chondrotissue (R) loaded with pBMSCs contained a higher amount of hyaline cartilage and a lower amount of connective tissue, while untreated defects contained a higher amount of connective tissue and a lower amount of hyaline cartilage. In addition, undifferentiated connective tissue was observed at the edges of defects receiving Chondrotissue (R) loaded with MSCs, which may indicate the extracellular matrix production by transplanted MSCs. The immunological analysis of the blood samples revealed no immune response activation by MSCs application. This study demonstrated the successful and safe immobilization of MSCs in commercially available scaffolds and defect sites for cartilage defect repair.
    Trvalý link: https://hdl.handle.net/11104/0346559

     
     
Počet záznamů: 1  

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