Downregulated microRNA-488 enhances odontoblast differentiation of human dental pulp stem cells via activation of the p38 MAPK signaling pathway

2018 ◽  
Vol 234 (2) ◽  
pp. 1442-1451 ◽  
Author(s):  
Dan Yu ◽  
Xue Zhao ◽  
Jin-Zhang Cheng ◽  
Di Wang ◽  
Hui-Hui Zhang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Signaling Pathway ◽  
P38 Mapk ◽  
Dental Pulp ◽  
Mapk Signaling ◽  
Dental Pulp Stem Cells ◽  
Mapk Signaling Pathway ◽  
Odontoblast Differentiation ◽  
Human Dental Pulp

scholarly journals Amelogenin Exon 5 Peptide Promotes Cell Proliferation and Osteogenic Differentiation in Human Dental Pulp Stem Cells

2019 ◽  
Vol 9 (20) ◽  
pp. 4425
Author(s):  
Hirohito Kato ◽  
Yoichiro Taguchi ◽  
Isao Yamawaki ◽  
Yaru Ruan ◽  
Qingchao Wu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Osteogenic Differentiation ◽  
Signaling Pathway ◽  
Dental Pulp ◽  
Mapk Signaling ◽  
Dental Pulp Stem Cells ◽  
Mapk Signaling Pathway ◽  
Enamel Matrix ◽  
Dental Pulp Capping

Amelogenin is a complex enamel matrix protein that consists of various molecular-size proteins and amino acids. A spliced form of amelogenin was identified that included exons 2, 3, 5, 6, and 7. However, the biological function of amelogenin exon 5 on dental pulp remains unknown. We designed a synthetic amelogenin exon 5 encoded peptide (SP), which was based on a protein produced by cells in response to the enamel matrix derivative (EMD). We investigated the effect of the SP on potentiation of osteogenesis and its signal pathway in dental pulp stem cells (DPSCs). DPSCs are an important cell for pulp tissue homeostasis. DPSCs were cultured with SP to examine the effect of cell proliferation and osteogenic differentiation. We also investigated the mitogen-activated protein kinase (MAPK) signaling pathway. SP significantly enhanced cell proliferation and the expression of osteogenic differentiation. Moreover, SP promoted the expression of the MAPK signaling pathway. Therefore, amelogenin exon 5 might contribute to dental pulp capping.

MiR-21/STAT3 Signal Is Involved in Odontoblast Differentiation of Human Dental Pulp Stem Cells Mediated by TNF-α

2018 ◽  
Vol 20 (2) ◽  
pp. 107-116 ◽  
Author(s):  
Ke Xu ◽  
Jingwen Xiao ◽  
Ke Zheng ◽  
Xingmei Feng ◽  
Jinlong Zhang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Odontoblast Differentiation ◽  
Tnf Α ◽  
Human Dental Pulp

scholarly journals Exosomes Derived from Dental Pulp Stem Cells Accelerate Cutaneous wound Healing by Enhancing Angiogenesis via Cdc42/p38 MAPK Pathway

2021 ◽  
Author(s):  
Ziyu Zhou ◽  
Jianmao Zheng ◽  
Danle Lin ◽  
Yanan Chen ◽  
Xiaoli Hu
Keyword(s):  
Stem Cells ◽  
Wound Healing ◽  
Signaling Pathway ◽  
P38 Mapk ◽  
Dental Pulp ◽  
Mapk Pathway ◽  
Mapk Signaling ◽  
Cutaneous Wound Healing ◽  
Cutaneous Wound ◽  
Protein Levels

Abstract Background: Skin wound healing is a common challenging clinical problem and need advanced treatment strategies. Here, we investigated the therapeutic effects of exosomes derived from dental pulp stem cells (DPSC-Exos) on cutaneous wound healing and the underlying mechanisms. Methods: The effects of DPSC-Exos on cutaneous wound healing in mice were examined by measuring wound closure rates, histological and immunohistochemical analysis. A series of functional assays were performed to evaluate the effects of DPSC-Exos on the angiogenic activities of human umbilical vein endothelial cells (HUVECs) in vitro. TMT-based quantitative proteomic analysis of DPSCs and DPSC-Exos was performed. Gene ontology (GO) and KEGG pathway enrichment analysis were used to evaluate biological functions and pathways for the differentially expressed proteins in DPSC-Exos. Western blot was used to assess the protein levels of Cdc42 and p38 in DPSC-Exos-induced angiogenesis of HUVECs. SB203580, a p38 MAPK signaling pathway inhibitor, was employed to verify the role of p38 MAPK pathway in these processes.Results: Histological and immunohistochemical staining revealed that DPSC-Exos accelerated wound healing by improving neovascularization. DPSC-Exos augmented the migration, proliferation, and capillary formation capacity of HUVECs. Proteomic data demonstrated that proteins contained in DPSC-Exos regulated vasculature development and angiogenesis. Pathway analysis showed that proteins expressed in DPSC-Exos were involved in several pathways including MAPK pathway. Western blotting demonstrated that DPSC-Exos increased the protein levels of Cdc42 and phosphorylation of p38 in HUVECs. SB203580 suppressed the angiogenesis of HUVECs induced by DPSC-Exos.Conclusions: DPSC-Exos could accelerate cutaneous wound healing by enhancing the angiogenic properties of HUVECs via Cdc42/p38 MAPK signaling pathway.

scholarly journals The Conditioned Medium of Calcined Tooth Powder Promotes the Osteogenic and Odontogenic Differentiation of Human Dental Pulp Stem Cells via MAPK Signaling Pathways

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Jintao Wu ◽  
Na Li ◽  
Yuan Fan ◽  
Yanqiu Wang ◽  
Yongchun Gu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Signaling Pathways ◽  
Conditioned Medium ◽  
Dental Pulp ◽  
Mapk Signaling ◽  
Dental Pulp Stem Cells ◽  
Control Group ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp ◽  
Mapk Signaling Pathways

The calcined tooth powder (CTP), a type of allogeneic biomimetic mineralized material, has been confirmed that can promote new bone formation when obtained at high temperature. The aim of this study was to investigate effects of the conditioned medium of calcined tooth powder (CTP-CM) on the osteogenic and odontogenic differentiation of human dental pulp stem cells (hDPSCs) and the underlying mechanisms involved. First, ALP activity assay determined that 200 μg/mL was the optimal concentration of CTP-CM for the following experiments. CTP-CM had no significant effect on the proliferation of hDPSCs as indicated by CCK-8 and FCM analysis. Both the gene and protein (DSPP/DSPP, RUNX2/RUNX2, OCN/OCN, OSX/OSX, OPN/OPN, ALP/ALP, and COL-1/COL-1) expression levels increased in the CTP-CM-induced hDPSC group as compared with those in the control group at day 3 or 7, showing the positive regulation of CTP-CM on the osteo/odontogenic differentiation of hDPSCs. Mechanistically, MAPK signaling pathways were activated after the CTP-CM treatment, and the inhibitors targeting MAPK were identified which weakened the effects of CTM-CM on the committed differentiation of hDPSCs. These findings could lead to the creation of stem cell therapies for dental regeneration.

LncRNA CALB2 sponges miR-30b-3p to promote odontoblast differentiation of human dental pulp stem cells via up-regulating RUNX2

2020 ◽  
Vol 73 ◽  
pp. 109695 ◽  
Author(s):  
Shaoqin Tu ◽  
Jinyan Wu ◽  
Lingling Chen ◽  
Yaguang Tian ◽  
Wei Qin ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Odontoblast Differentiation ◽  
Human Dental Pulp
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