Human iPSC-derived iMSCs improve bone regeneration in mini-pigs.
Bone
Bone quality and biomechanics
Journal
Bone research
ISSN: 2095-4700
Titre abrégé: Bone Res
Pays: China
ID NLM: 101608652
Informations de publication
Date de publication:
2019
2019
Historique:
received:
22
10
2018
revised:
04
06
2019
accepted:
22
07
2019
entrez:
1
11
2019
pubmed:
2
11
2019
medline:
2
11
2019
Statut:
epublish
Résumé
Autologous bone marrow concentrate (BMC) and mesenchymal stem cells (MSCs) have beneficial effects on the healing of bone defects. To address the shortcomings associated with the use of primary MSCs, induced pluripotent stem cell (iPSC)-derived MSCs (iMSCs) have been proposed as an alternative. The aim of this study was to investigate the bone regeneration potential of human iMSCs combined with calcium phosphate granules (CPG) in critical-size defects in the proximal tibias of mini-pigs in the early phase of bone healing compared to that of a previously reported autograft treatment and treatment with a composite made of either a combination of autologous BMC and CPG or CPG alone. iMSCs were derived from iPSCs originating from human fetal foreskin fibroblasts (HFFs). They were able to differentiate into osteoblasts in vitro, express a plethora of bone morphogenic proteins (BMPs) and secrete paracrine signaling-associated cytokines such as PDGF-AA and osteopontin. Radiologically and histomorphometrically, HFF-iMSC + CPG transplantation resulted in significantly better osseous consolidation than the transplantation of CPG alone and produced no significantly different outcomes compared to the transplantation of autologous BMC + CPG after 6 weeks. The results of this translational study imply that iMSCs represent a valuable future treatment option for load-bearing bone defects in humans.
Identifiants
pubmed: 31667001
doi: 10.1038/s41413-019-0069-4
pii: 69
pmc: PMC6813363
doi:
Types de publication
Journal Article
Langues
eng
Pagination
32Informations de copyright
© The Author(s) 2019.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing interests.
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