Regulation mechanism of resveratrol on odontogenic differentiation of human dental pulp stem cells

doi:10.19439/j.sjos.2023.02.004

Abstract

Abstract: PURPOSE: To investigate whether resveratrol promotes odontogenic differentiation of human dental pulp stem cells(DPSCs) by up-regulating the expression of silent information regulator 1 (SIRT1) and activating β-catenin signaling pathway. METHODS: Different concentrations of resveratrol(0, 10, 15, 20 and 50 μmol/L) were used to treat DPSCs for 7 days and 14 days, and cell proliferative activity was detected by CCK-8. After odontogenic differentiation induced by 15 μmol/L resveratrol for 7 days, alkaline phosphatase(ALP) staining was performed and real-time quantitative reverse transcription PCR(qRT-PCR) was used to detect the mRNA expression of Runt-related transcription factor 2 (Runx2), dentin sialophosphoprotein(DSPP) and dentin matrix protein-1(DMP-1) in DPSCs. Western blot was used to detect the expression of SIRT1 in DPSCs on a specific day (0, 3rd, 5th, 7th and 14th) after differentiation induction. Western blot was also used to detect the expression of SIRT1 and activated β-catenin during odontogenic differentiation of DPSCs treated by 15 μmol/L resveratrol for 7 days. The experimental data was analyzed with GraphPad Prism 9 software package. RESULTS: 15 μmol/L resveratrol had no significant effect on proliferation of DPSCs on the 7th and 14th day; 15 μmol/L resveratrol promoted odontogenic differentiation of DPSCs and up-regulated mRNA expression of RUNX2, DSPP, and DMP-1 in DPSCs; the expression of SIRT1 was the highest on the 7th day during odontogenic differentiation induction. Resveratrol resulted in the increasing protein expressions of SIRT1 and activated β-catenin when DPSCs was induced to odontogenic differentiation for 7 days. CONCLUSIONS: Resveratrol promotes odontogenic differentiation of human DPSCs by up-regulating the expression of SIRT1 protein and activating β-catenin signaling pathway.

Key words: Resveratrol, Dental pulp stem cells, Odontogenic differentiation, Silent information regulator 1, β-catenin

CLC Number:

R781.3

LI Zong-yu, LI Xiao-lin, WEI Peng-gong, QU Liu, QIU Li-hong, YU Ya-qiong. Regulation mechanism of resveratrol on odontogenic differentiation of human dental pulp stem cells[J]. Shanghai Journal of Stomatology, 2023, 32(2): 132-136.

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