Abstract：
:In non-growing teeth, such as mouse and human molars, primary odontoblasts are long-lived post-mitotic cells that secrete dentine throughout the life of the tooth. New odontoblast-like cells are only produced in response to a damage or trauma. Little is known about the molecular events that initiate mesenchymal stem cells to proliferate and differentiate into odontoblast-like cells in response to dentine damage. The reparative and regenerative capacity of multiple mammalian tissues depends on the activation of Wnt/β-catenin signaling pathway. In this study, we investigated the molecular role of Wnt/β-catenin signaling pathway in reparative dentinogenesis using an in vivo mouse tooth damage model. We found that Axin2 is rapidly upregulated in response to tooth damage and that these Axin2-expressing cells differentiate into new odontoblast-like cells that secrete reparative dentine. In addition, the Axin2-expressing cells produce a source of Wnt that acts in an autocrine manner to modulate reparative dentinogenesis.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Babb R,Chandrasekaran D,Carvalho Moreno Neves V,Sharpe PTdoi
10.1038/s41598-017-03145-6subject
Has Abstractpub_date
2017-06-08 00:00:00pages
3102issue
1issn
2045-2322pii
10.1038/s41598-017-03145-6journal_volume
7pub_type
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