Article (Scientific journals)
A cell-based combination product for the repair of large bone defects.
Lammens, Johan; Maréchal, Marina; Delport, Hendrik et al.
2020In BONE, 138, p. 115511
Peer Reviewed verified by ORBi
 

Files


Full Text
1-s2.0-S875632822030291X-main.pdf
Author postprint (3.39 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Bone Morphogenetic Protein 2; Animals; Bone Regeneration; Periosteum; Sheep; Stem Cells; Tissue Scaffolds; Biologically exhausted defect; Bone Morphogenetic Protein; Large animal model; Periosteum-derived cells
Abstract :
[en] Regenerative cell-based implants using periosteum-derived stem cells were developed for the treatment of large 3 cm fresh and 4.5 centimeter biological compromised bone gaps in a tibial sheep model and compared with an acellular ceramic-collagen void filler. It was hypothesized that the latter is insufficient to heal large skeletal defects due to reduced endogenous biological potency. To this purpose a comparison was made between the ceramic dicalciumphosphate scaffold (CopiOs®) as such, the same ceramic coated with clinical grade Bone Morphogenetic Protein 2 and 6 (BMP) only or a BMP coated cell-seeded combination product. These implants were evaluated in 2 sheep models, a fresh 3 cm critical size tibial defect and a 4.5 cm biologically exhausted tibial defect. For the groups in which growth factors were applied, BMP-6 was chosen at a dose of 344 μg for 3 cm and 1.500 μg or 3.800 μg for 4.5 cm defects. An additional group in the 4.5 cm defect was tested using BMP-2 in a dose of 1.500 μg. For all the cell based implants autologous periosteum-derived cells were used which were cultured in monolayer during 6 weeks. For the fresh defect 408 million cells and for the biologically exhausted tibial defect 612 million cells were drop-seeded on the BMP coated scaffolds. Bone healing was studied during 16 weeks postimplantation, using standard radiographs. While fresh defects responded to all treatments, regardless the use of cells, the biologically hampered defects responded in half of the cases and only if the BMP-cell combination product was used, supporting the concept that cell-based therapies may become attractive in treating defects with a compromised biological status.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Lammens, Johan;  Department of Orthopaedic Surgery, University Hospitals Leuven, Herestraat 49,
Maréchal, Marina;  Prometheus, Division of Skeletal Tissue Engineering of the KU Leuven, Herestraat
Delport, Hendrik;  Prometheus, Division of Skeletal Tissue Engineering of the KU Leuven, Herestraat
Geris, Liesbet  ;  Université de Liège - ULiège > GIGA > GIGA In silico medecine - Biomechanics Research Unit ; Prometheus, Division of Skeletal Tissue Engineering of the KU Leuven, Herestraat
Oppermann, Hermann;  Genera Research, Svetonedeljska cesta 2, 10436 Kalinovica, Sveta Nedelja,
Vukicevic, Slobodan;  Laboratory for Mineralized Tissues, Center for Translational and Clinical
Luyten, Frank P;  Prometheus, Division of Skeletal Tissue Engineering of the KU Leuven, Herestraat
Language :
English
Title :
A cell-based combination product for the repair of large bone defects.
Publication date :
September 2020
Journal title :
BONE
ISSN :
8756-3282
eISSN :
1873-2763
Publisher :
Elsevier, Nl
Volume :
138
Pages :
115511
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright © 2020 Elsevier Inc. All rights reserved.
Available on ORBi :
since 29 June 2022

Statistics


Number of views
41 (0 by ULiège)
Number of downloads
93 (0 by ULiège)

Scopus citations®
 
17
Scopus citations®
without self-citations
9
OpenCitations
 
17

Bibliography


Similar publications



Contact ORBi