ArticleJournal of translational medicine2025
MicroRNA-27a transfected dental pulp stem cells undergo odonto/osteogenic differentiation via targeting DKK3 and SOSTDC1 in Wnt/BMP signaling in vitro and enhance bone formation in vivo.
Article in Journal of translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Advances in Regenerative Dentistry: From Biological Mechanisms to Clinical Translation.Life (Basel, Switzerland) · 2026Review
- Integrated Genetic Networks and Epigenetic Regulation inTooth Development and Maturation.Cells · 2026Review
- MicroRNA signatures in inflammatory dental tissues: biomarkers and molecular mechanisms.Frontiers in molecular biosciences · 2026Review
- The Cross Talk of MicroRNAs and SATB2 Signaling Pathway in Osteogenesis in the Context of Dental Implants.International journal of molecular and cellular medicine · 2025Review
- Dot1l Regulates the Spontaneous Bone Regeneration of Periosteum-Derived Stem Cells by Regulating Chac1 Expression.Stem cells international · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
backgroundMicroRNAs (miRNAs) play a crucial role in cell differentiation through epigenetic regulation of gene expression. In human dental pulp cells, we have identified miRNA-27a being upregulated under inflammatory conditions. Here, we aimed to examine whether (i) overexpression of miRNA-27a in human dental pulp stem cells (hDPSCs) enhances their odonto/osteoblastic differentiation via Wnt and bone morphogenetic protein signaling; and (ii) hDPSCs overexpressing miRNA-27a promote new bone formation in vivo.
methodshDPSCs were cultured in osteogenic medium to promote differentiation. To examine the role of miRNA-27a, hDPSCs were transfected with either a miRNA-27a mimic to enhance or an inhibitor to suppress miRNA-27a expression. Odonto/osteoblastic differentiation was assessed by evaluating the expression of specific markers, Wnt and bone morphogenetic protein (BMP) signaling molecules, and mineralization capacity using RT-qPCR, western blotting, Alizarin Red S (ARS) staining, and alkaline phosphatase (ALP) activity. Potential miRNA-27a binding sites in the 3'UTRs of DKK3 and SOSTDC1 were identified via bioinformatics analysis and validated through the luciferase reporter assay. In vivo, miRNA-27a-overexpressing hDPSCs were seeded into collagen honeycomb scaffolds and implanted into mouse calvarial bone cavities to assess new bone formation.
resultsMiRNA-27a was highly upregulated in hDPSCs committed to odonto/osteoblastic differentiation. Overexpression of miRNA-27a led to increased expression of odonto/osteoblastic markers and enhanced mineralization capacity, while inhibition of miRNA-27a had the opposite effect. MiRNA-27a targeted DKK3, promoting β-catenin nuclear translocation and inhibiting SOSTDC1, which enhanced SMAD1/5 phosphorylation. Binding sites for miRNA-27a were identified in the 3'UTRs of DKK3 and SOSTDC1. In vivo, miRNA-27a-overexpressing hDPSCs promoted new bone formation in mouse calvaria bone cavities.
conclusionTransfection of miRNA-27a in hDPSCs enhanced their odonto/osteoblastic differentiation by targeting DKK3 and SOSTDC1, thereby promoting the Wnt and BMP signaling. Transplantation of miRNA-27a-overexpressing hDPSCs promoted new bone formation in vivo. These findings deepen our understanding of the effects of miRNA on Wnt and BMP pathways and suggest a potential clinical application for miRNA-27a in promoting hard tissue regeneration, offering a promising therapeutic target for dental and craniofacial tissue reconstruction.
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