Affiliation:
1. The Nippon Dental University Graduate School of Life Dentistry at Niigata
2. The Nippon Dental University School of Life Dentistry at Niigata
Abstract
Abstract
Objectives: This study aimed to clarify the effects of strontium (Sr2⁺), borate (BO33−), and silicate (SiO32−) on cell proliferative capacity, the induction of differentiation into odontoblast-like cells (OLCs), and substrate formation of human dental pulp stem cells (hDPSCs).
Methods: Sr2+, BO33−, and SiO32− solutions were added to the hDPSC culture medium at three different concentrations, totaling nine experimental groups. The effects of these ions on hDPSC proliferation, calcification, and collagen formation after 14, 21, and 28 days of culture were evaluated using a cell proliferation assay, a quantitative alkaline phosphatase (ALP) activity assay, and Alizarin red S and Sirius red staining, respectively. Further, the effects of these ions on hDPSC differentiation into OLCs were assessed via real-time polymerase chain reaction and immunohistochemistry.
Results: Sr2+ and SiO32− increased the expression of odontoblast markers; i.e., nestin, DMP-1, dentin sialophospholipoprotein, and ALP genes, compared with the control group. BO33− increased the ALP gene expression and activity.
Significance: The results of this study suggested that Sr2+, BO33−, and SiO₃²− may induce hDPSC differentiation into OLCs.
Publisher
Research Square Platform LLC
Reference74 articles.
1. Minimal intervention in dentistry: A literature review on biodentine as a bioactive pulp capping material;Arandi NZ;BioMed Res Int 5569313,2021
2. Treatment of deep carious lesions by complete excavation or partial removal: A critical review;Thompson V;J Am Dent Assoc,2008
3. Long term clinical assessment of direct pulp capping;Baume LJ;Int Dent J,1981
4. Postnatal human dental pulp stem cells (DPSCs) in vitro and in vivo;Gronthos S;Proc Natl Acad Sci U S A,2000
5. Basic mechanisms of cytodifferentiation and dentinogenesis during dental pulp repair;Tziafas D;Int J Dev Biol,1995