Osteoporosis occurs frequently in women after menopause and old age, and it is very easy to cause osteoporotic fractures, resulting in disability and death. In osteoporosis patients, the potential of bone marrow mesenchymal stem cells (BMSCs) to differentiate into osteoblasts gradually is inhibited, leading to decreased new bone formation. In the current study, the potential effect of G-protein-coupled receptor 124 (GPR124) on the osteoblastic differentiation of BMSCs was determined. BMSCs were isolated and cultured in osteogenic media to induced osteogenic differentiation. Then, osteogenic differentiation was evaluated by Alizarin Red staining and ALP activity. The expression of osteogenic differentiation biomarkers, and Wnt/β-catenin signaling were determined by qRT-PCR and Western blotting. The results indicated that the expression of GPR124 was significantly increased during osteogenic differentiation of BMSCs. Moreover, GPR124 knockdown significantly inhibited osteoblastic differentiation and GPR124 overexpression promoted osteoblastic differentiation of BMSCs. GPR124 knockdown suppressed the activation of Wnt/β-catenin signaling pathway. What's more, the increased osteogenic differentiation induced by GPR124 overexpression was abolished by the inhibitor of Wnt/β-catenin pathway and Wnt7a knockdown. Taken together, GPR124 promotes osteogenic differentiation of BMSCs through the Wnt/β-catenin pathway and may serve as a potential target for enhancing osteogenesis of osteoporosis patients.
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http://dx.doi.org/10.1007/s11626-022-00684-9 | DOI Listing |
Biochem Pharmacol
January 2025
School of Medicine, Nankai University, Tianjin, PR China. Electronic address:
Osteoporosis is a chronic disease distinguished by decreased bone density and degradation of bone microstructure, frequently linked with inflammation and oxidative stress, both of which contribute to the acceleration of bone resorption. The compound 5,7-Dihydroxy-4-methylcoumarin (D4M) present in Artemisia dracunculus exhibits significant antioxidant and anti-inflammatory properties. Nonetheless, the potential anti-osteoporotic effects of D4M, along with the molecular targets and mechanisms responsible for these effects, have not been studied.
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Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266023, China. Electronic address:
Gigascience
January 2025
Laboratory of Regenerative Biomedicine, Institute of Cytology Russian Academy of Science, St. Petersburg, 194064, Russia.
Osteogenic differentiation is crucial in normal bone formation and pathological calcification, such as calcific aortic valve disease (CAVD). Understanding the proteomic and transcriptomic landscapes underlying this differentiation can unveil potential therapeutic targets for CAVD. In this study, we employed RNA sequencing transcriptomics and proteomics on a timsTOF Pro platform to explore the multiomics profiles of valve interstitial cells (VICs) and osteoblasts during osteogenic differentiation.
View Article and Find Full Text PDFCell Signal
January 2025
The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, Jilin Province, China. Electronic address:
Most osteosarcoma (OS) cases exhibit poor differentiation at the histopathological level. Disruption of the normal osteogenic differentiation process results in the unregulated proliferation of precursor cells, which is a critical factor in the development of OS. Differentiation therapy aims to slow disease progression by restoring the osteogenic differentiation process of OS cells and is considered a new approach to treating OS.
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January 2025
Department of Materials Engineering, Indian Institute of Science, C. V. Raman Avenue, Bangalore 560012, India.
Emerging techniques of additive manufacturing, such as vat-based three-dimensional (3D) bioprinting, offer novel routes to prepare personalized scaffolds of complex geometries. However, there is a need to develop bioinks suitable for clinical translation. This study explored the potential of bacterial-sourced methacrylate levan (LeMA) as a bioink for the digital light processing (DLP) 3D bioprinting of bone tissue scaffolds.
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