To study and evaluate BMP7s functions in osteogenic differentiation of human periosteal cells in vitro. Human periosteal cells from adult tibia were collected and cultured as experimental samples. BMP7 was used to induce periosteal cells in the experiment group with common osteogenic medium. The proliferative activity of periosteal cells was detected by CCK-8. The potentials of osteogenic differentiation were demonstrated as follows: (1) realtime-PCR and ELISA to confirm the expression of the OC, ALP and OPN, (2) Colorimetry, ALP staining and Von Kossa staining were performed to identify ALP activity, ALP expression and calcium nodules, respectively. Based on the significant different expression of OC, ALP and OPN, BMP7 ability of osteogenic differentiation can be identified. ALP activity detection, calcium nodules staining and toluidine staining also provide the power evidence to support BMP7 can promote osteogenic differentiation of human periosteal cells in vitro. To human periosteal cells, BMP7 is a good inducer for osteogenic differentiation. Therefore, it's maybe a potential tool for clinical application.
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http://dx.doi.org/10.1007/s11033-012-1748-z | DOI Listing |
Biomaterials
January 2025
Prometheus Division of Skeletal Tissue Engineering, KU Leuven, O&N1, Herestraat 49, PB 813, 3000, Leuven, Belgium; Skeletal Biology and Engineering Research, KU Leuven, ON1 Herestraat 49, PB 813, 3000, Leuven, Belgium. Electronic address:
Self-assembled cartilaginous microtissues provide a promising means of repairing challenging skeletal defects and connective tissues. However, despite their considerable promise in tissue engineering, the mechanical response of these engineered microtissues is not well understood. Here we examine the mechanical and viscoelastic response of progenitor cell aggregates formed from human primary periosteal cells and the resulting cartilaginous microtissues under large deformations as might be encountered in vivo.
View Article and Find Full Text PDFBiomater Res
January 2025
Department of Orthopedics, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310000, China.
Large bone defects are still a persistent challenge in orthopedics. The availability limitations and associated complications of autologous and allogeneic bone have prompted an increasing reliance on tissue engineering and regenerative medicine. In this study, we developed an injectable scaffold combining an acellular extracellular periosteal matrix hydrogel with poly(d,l-lactate--glycol-acetate) microspheres loaded with the E7 peptide and miR217 (miR217/E7@MP-GEL).
View Article and Find Full Text PDFBioengineering (Basel)
December 2024
Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, 72076 Tübingen, Germany.
Cell functionality, driven by remarkable plasticity, is strongly influenced by mechanical forces that regulate mesenchymal stem cell (MSC) fate. This study explores the biomechanical properties of jaw periosteal cells (JPCs) and induced mesenchymal stem cells (iMSCs) under different culture conditions. We cultured both JPCs and iMSCs (n = 3) under normoxic and hypoxic environments, with and without osteogenic differentiation, and on laminin- or gelatin-coated substrates.
View Article and Find Full Text PDFbioRxiv
December 2024
Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
Bone fracture repair initiates by periosteal expansion. The periosteum is typically quiescent, but upon fracture, periosteal cells proliferate and contribute to bone fracture repair. The expansion of the periosteum is regulated by gene transcription; however, the molecular mechanisms behind periosteal expansion are unclear.
View Article and Find Full Text PDFJ Clin Med
November 2024
Department of Restorative Dentistry, Medical University of Bialystok, 15-089 Białystok, Poland.
Titanium miniplates and screws are commonly used in the surgical management of dentofacial deformities. Despite the opinion of the biocompatibility of these bone fixations, some patients experience symptoms of chronic inflammation around titanium implants even many years after their application. The aim of this study was to examine the levels of cytokines, chemokines, and growth factors released from the maxilla and mandible periosteum surrounding titanium fixations 11 months after the implantation procedure.
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