Abstract

Osteoblast differentiation requires the interaction of various cell signaling pathways to modulate cell responses. Notch and Wnt signaling are among the crucial pathways that control numerous biological processes, including osteo/odontogenic differentiation. The aim of the present study was to examine the involvement of Wnt signaling in the Jagged1-induced osteo/odontogenic differentiation in human dental pulp stem cells (hDPSCs). The Wnt-related gene expression was analyzed from publicly available data of Jagged1-treated human dental pulp cells. The mRNA expression of Wnt ligands (WNT2B, WNT5A, WNT5B, and WNT16) and Wnt inhibitors (DKK1, DKK2, and SOST) were confirmed using real-time polymerase chain reaction. Among the Wnt ligands, WNT2B and WNT5A mRNA levels were upregulated after Jagged1 treatment. In contrast, the Wnt inhibitors DKK1, DKK2, and SOST mRNA levels were downregulated. Recombinant WNT5A, but not WNT2B, significantly promoted in vitro mineral deposition by hDPSCs. Wnt signaling inhibition using IWP-2, but not DKK1, inhibited Jagged1-induced alkaline phosphatase (ALP) activity, mineralization, and osteo/odontogenic marker gene expression in hDPSCs. In conclusion, Jagged1 promoted hDPSC osteo/odontogenic differentiation by modulating the non-canonical Wnt pathway.

Details

Title
Non-canonical Wnt signaling participates in Jagged1-induced osteo/odontogenic differentiation in human dental pulp stem cells
Author
Chatvadee, Kornsuthisopon 1 ; Ajjima, Chansaenroj 2 ; Jeeranan, Manokawinchoke 1 ; Tompkins, Kevin A 3 ; Pirarat Nopadon 2 ; Thanaphum, Osathanon 4 

 Chulalongkorn University, Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Bangkok, Thailand (GRID:grid.7922.e) (ISNI:0000 0001 0244 7875) 
 Chulalongkorn University, Department of Pathology, Faculty of Veterinary Science, Bangkok, Bangkok, Thailand (GRID:grid.7922.e) (ISNI:0000 0001 0244 7875) 
 Chulalongkorn University, Office of Research Affairs, Faculty of Dentistry, Bangkok, Thailand (GRID:grid.7922.e) (ISNI:0000 0001 0244 7875) 
 Chulalongkorn University, Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Bangkok, Thailand (GRID:grid.7922.e) (ISNI:0000 0001 0244 7875); Chulalongkorn University, Department of Anatomy, Faculty of Dentistry, Bangkok, Thailand (GRID:grid.7922.e) (ISNI:0000 0001 0244 7875) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2661274376
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.