Article (Scientific journals)
Developmentally Engineered Callus Organoid Bioassemblies Exhibit Predictive In Vivo Long Bone Healing.
Nilsson Hall, Gabriella; Mendes, Luís Freitas; Gklava, Charikleia et al.
2020In Advanced Science, 7 (2), p. 1902295
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Keywords :
developmental engineering; endochondral ossification; long‐bone defect; organoid; tissue engineering
Abstract :
[en] Clinical translation of cell-based products is hampered by their limited predictive in vivo performance. To overcome this hurdle, engineering strategies advocate to fabricate tissue products through processes that mimic development and regeneration, a strategy applicable for the healing of large bone defects, an unmet medical need. Natural fracture healing occurs through the formation of a cartilage intermediate, termed "soft callus," which is transformed into bone following a process that recapitulates developmental events. The main contributors to the soft callus are cells derived from the periosteum, containing potent skeletal stem cells. Herein, cells derived from human periosteum are used for the scalable production of microspheroids that are differentiated into callus organoids. The organoids attain autonomy and exhibit the capacity to form ectopic bone microorgans in vivo. This potency is linked to specific gene signatures mimicking those found in developing and healing long bones. Furthermore, callus organoids spontaneously bioassemble in vitro into large engineered tissues able to heal murine critical-sized long bone defects. The regenerated bone exhibits similar morphological properties to those of native tibia. These callus organoids can be viewed as a living "bio-ink" allowing bottom-up manufacturing of multimodular tissues with complex geometric features and inbuilt quality attributes.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Nilsson Hall, Gabriella
Mendes, Luís Freitas
Gklava, Charikleia
Geris, Liesbet  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Génie biomécanique
Luyten, Frank P.
Papantoniou, Ioannis
Language :
English
Title :
Developmentally Engineered Callus Organoid Bioassemblies Exhibit Predictive In Vivo Long Bone Healing.
Publication date :
2020
Journal title :
Advanced Science
ISSN :
2198-3844
Publisher :
Wiley, Weinheim, Germany
Volume :
7
Issue :
2
Pages :
1902295
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 772418 - INSITE - Development and use of an integrated in silico-in vitro mesofluidics system for tissue engineering
Funders :
CER - Conseil Européen de la Recherche [BE]
CE - Commission Européenne [BE]
Commentary :
© 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim.
Available on ORBi :
since 12 July 2020

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