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dc.contributor.authorShanbhag, Siddharth
dc.contributor.authorKampleitner, Carina
dc.contributor.authorMohamed-Ahmed, Samih Salah Eldin Mahgoub
dc.contributor.authorYassin, Mohammed Ahmed Alamin Yousif
dc.contributor.authorDongre, Harsh Nitin
dc.contributor.authorCostea, Daniela Elena
dc.contributor.authorTangl, Stefan
dc.contributor.authorStavropoulos, Andreas
dc.contributor.authorBolstad, Anne Isine
dc.contributor.authorSuliman, Salwa
dc.contributor.authorMustafa, Kamal Babikeir Elnour
dc.description.abstractThree-dimensional (3D) spheroid culture can promote the osteogenic differentiation and bone regeneration capacity of mesenchymal stromal cells (MSC). Gingiva-derived progenitor cells (GPC) represent a less invasive alternative to bone marrow MSC (BMSC) for clinical applications. The aim of this study was to test the in vivo bone forming potential of human GPC and BMSC cultured as 3D spheroids or dissociated cells (2D). 2D and 3D cells encapsulated in constructs of human platelet lysate hydrogels (HPLG) and 3D-printed poly (L-lactide-co-trimethylene carbonate) scaffolds (HPLG-PLATMC) were implanted subcutaneously in nude mice; cell-free HPLG-PLATMC constructs served as a control. Mineralization was assessed using micro-computed tomography (µCT), histology, scanning electron microscopy (SEM) and in situ hybridization (ISH). After 4–8 weeks, µCT revealed greater mineralization in 3D-BMSC vs. 2D-BMSC and 3D-GPC (p < 0.05), and a similar trend in 2D-GPC vs. 2D-BMSC (p > 0.05). After 8 weeks, greater mineralization was observed in cell-free constructs vs. all 2D- and 3D-cell groups (p < 0.05). Histology and SEM revealed an irregular but similar mineralization pattern in all groups. ISH revealed similar numbers of 2D and 3D BMSC/GPC within and/or surrounding the mineralized areas. In summary, spheroid culture promoted ectopic mineralization in constructs of BMSC, while constructs of dissociated GPC and BMSC performed similarly. The combination of HPLG and PLATMC represents a promising scaffold for bone tissue engineering applications.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleEctopic Bone Tissue Engineering in Mice Using Human Gingiva or Bone Marrow-Derived Stromal/Progenitor Cells in Scaffold-Hydrogel Constructsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2021 the authorsen_US
dc.source.journalFrontiers in Bioengineering and Biotechnologyen_US
dc.identifier.citationFrontiers in Bioengineering and Biotechnology. 2021, 9, 783468.en_US

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