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Background: The aim to this study was to explore the effect of p75NTR on the mineralization and development of maxillofacial processes. Moreover, we tried to elaborate the potential mechanism of p75NTR's effect on the odontogenic or osteogenic differentiation ability of neural crest cells (s).
Methods: We used gene p75NTR knockout (p75NTR) mice and wildtype (p75NTR) mice embryos as a model. And We isolated p75NTR and p75NTR ectodermal mesenchymal stem cells (EMSCs) from the embryonic maxillofacial process of the same pregnant p75NTR mice. The potential mechanism of p75NTR's effect on the odontogenic or osteogenic differentiation ability of EMSCs was analyzed by single cell RNA sequence(scRNA-seq). The results were further verified by mineralize induction and wound-healing Assay.
Results: We found the deletion of p75NTR could impact the communications between different cell types, influence differentiation and suppress odontogenesis via regulation networks of cytokines that associating with migration, proliferation and differentiation. The volcano plot characterized the distribution of differentially expressed genes (DEGs) in the selection at threshold level. p75NTR deletion suppressed EMSCs migration, proliferation and odonto/osteogenic differentiation in vitro.
Conclusions: This study provides a comprehensive analysis of the cellular fate of EMSCs in the maxillofacial process. p75NTR plays a crucial role in initiating hard tissue development and regulates the odontogenic and osteogenic differentiation of EMSCs during embryonic development.
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http://dx.doi.org/10.1186/s12903-025-06399-z | DOI Listing |
Eur J Dent
September 2025
Doctoral Program, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia.
Although platelet-rich plasma (PRP) has demonstrated considerable regenerative potential in regenerative endodontic treatment, its clinical efficacy may be limited by the rapid degradation of its bioactive components, leading to inconsistent outcomes. To overcome this challenge, the present study explores the use of nano-sized exosomes derived from PRP-a novel designated as PRP exosomes (PRP-Exo)-as a more stable and targeted biomolecular delivery system to promote odontogenic differentiation within the dentin-pulp complex. The primary objective is to investigate the expression of key odontogenic markers, transforming growth factor-β1 (TGF-β1) and Dentin Sialophosphoprotein (DSPP), in human dental pulp stem cells (hDPSCs) following PRP-Exo treatment.
View Article and Find Full Text PDFArch Oral Biol
August 2025
College of Life Sciences, Nankai University, Tianjin 300071, China. Electronic address:
Objective: Odontogenic keratocysts (OKCs) are aggressive jaw lesions, either linked to Gorlin-Goltz syndrome or sporadic. We aimed to investigate the impact of the Hedgehog (Hh) pathway inhibitor GDC-0449 on OKC fibroblasts (OKC-Fs). Additionally, we explored whether secreted protein acidic and rich in cysteine (SPARC) was a novel Hh target and its association with OKC aggressiveness.
View Article and Find Full Text PDFFront Mol Biosci
August 2025
State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China.
N-methyladenosine (mA), an abundant internal RNA modification in eukaryotes, serves as a dynamic post-transcriptional regulator of gene expression by influencing RNA splicing, stability, translation, and decay. This reversible epitranscriptomic mechanism, which is mediated by methyltransferase (writers), demethylase (erasers), and mA-binding proteins (readers), is pivotal in diverse biological contexts. Among mA erasers, alkylation repair homolog protein 5 (ALKBH5), an Fe(II)/α-ketoglutarate-dependent dioxygenase, is the second to be discovered and one of the most significant demethylases.
View Article and Find Full Text PDFSurgical debridement of infected oral tissues can compromise maxillofacial aesthetics and anatomical function, thereby reinforcing the use of antibiotics as a first-line therapy. However, the escalating threat of multidrug-resistant pathogens has intensified the need for non-antibiotic alternatives that can be applied topically and eliminate microbes regardless of their resistance profiles. In this study, we introduce hybrid gallium-silver metal-organic frameworks (MOFs) as a novel therapeutic platform that integrates gallium-mediated disruption of iron-dependent metabolic pathways with the biophysical antimicrobial effects of silver nanoparticles, resulting in potent and rapid inhibition of oral streptococcal growth.
View Article and Find Full Text PDFJ Biomed Mater Res B Appl Biomater
August 2025
Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.
Managing bone defects is challenging, with autologous grafts being the most effective treatment. Biomaterials like alginate/hydroxyapatite (Alg/Hap) composites are increasingly used due to their biocompatibility and osteoconductive properties. Graft implantation in the oral cavity may trigger inflammatory responses, such as periodontitis, pulpitis, or caries, due to biomaterial recognition as non-self and the presence of pathogens like Streptococcus mutans.
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