ArticleStem cell research & therapy2025
Odontogenic differentiation of dental pulp stem cells by glycogen synthase kinase-3β inhibitory peptides.
Article in Stem cell research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Inflammation-Regeneration Axis of Dental Pulp Stem Cells: Wnt/NF-κB Crosstalk.International endodontic journal · 2026Review
- Dose-dependent effects of Metformin on proliferation and odontogenic differentiation of dental pulp stem cells.BMC oral health · 2026Article
- MARCH2 suppresses odontoblast differentiation by polyubiquitinating PTPRD.International journal of oral science · 2026Article
- Optogenetic control of odontoblastic differentiation in dental pulp stem cells (DPSC).Journal of dental sciences · 2026Article
- A bioactive composite of freeze-dried stem cells, porous microcarriers, and fibrinogen-thrombin gel for dental pulp tissue engineering.American journal of stem cells · 2026Article
- Effects of sodium hypochlorite on the viability and osteogenic differentiation of dental pulp stem cells in regenerative pulp therapy.Journal of dental sciences · 2025Article
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Authors and funding
5 authors.
Funding
Abstract
backgroundTo investigate the effects of peptide-based substrate competitive inhibitors of GSK-3β (GSK-3βi) on promoting odontogenic differentiation of human dental pulp stem cells (hDPSCs).
methodsThe biocompatibility and proliferation of hDPSCs treated with GSK-3βi peptides (pS9, LRP 6a, L803, and L803-mts) were evaluated using the tetrazolium reduction assay and cell counting kit-8 assay, respectively. The differentiation of hDPSCs following peptide treatment was determined using the alkaline phosphatase assay (ALP), calcium mineralization (alizarin red staining), and quantification of mRNA expression of differentiation markers via quantitative real-time polymerase chain reaction. The accumulation of β-catenin in the nucleus of GSK3-βi-treated hDPSCs was determined using immunofluorescence staining. The effect of peptide treatment on hDPSC migration was characterized using the transwell assay.
resultsAll tested concentrations of the peptides were found to be biocompatible with the hDPSCs, with no significant difference compared to the control (p > 0.05). The peptides had no effect on the proliferation of hDPSCs compared to the control (p > 0.05). However, all the tested peptides significantly increased ALP activity and calcium deposition in a dose-dependent manner (p < 0.05). Specifically, L803-mts showed significantly greater ALP activity and mineralization compared to the other peptides and the controls (p < 0.05). Additionally, L803-mts showed a significant increase (p < 0.05) in the expression of DSPP, DMP-1, Runx-2, along with increased protein expression of DSPP and DMP-1 compared to the control. Furthermore, it enhanced the nuclear translocation of β-catenin and increased the chemotactic migratory potential of hDPSCs.
conclusionsL803-mts, a peptide-based substrate competitive inhibitor of GSK-3β, enhanced the odontogenic differentiation of hDPSCs by activating the Wnt signaling pathway.
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