ArticleScientific reports2024
Notum regulates the cusp and root patterns in mouse molar.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Notum1a Inhibition promotes neurogenesis in the adult zebrafish brain.Scientific reports · 2025Article
- Progressive tooth pattern changes in Cilk1-deficient mice depending on Hedgehog signaling.International journal of oral science · 2025Article
- Notum as a Crucial Regulator of Matrix Integrity in Dentinogenesis.Journal of cellular physiology · 2025Article
- Decoding dental mesenchymal stem cells diversity: single-cell transcriptomics maps heterogeneity in molar development.Frontiers in cell and developmental biology · 2025Review
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Authors and funding
7 authors.
Funding
Abstract
Notum is a direct target of Wnt/β-catenin signaling and plays a crucial role as a Wnt inhibitor within a negative feedback loop. In the tooth, Notum is known to be expressed in odontoblasts, and severe dentin defects and irregular tooth roots have been reported in Notum-deficient mice. However, the precise expression pattern of Notum in early tooth development, and the role of Notum in crown and root patterns remain elusive. In the present study, we identified a novel Notum expression in primary enamel knot (EK), secondary EKs, and dental papilla during tooth development. Notum-deficient mice exhibited enlarged secondary EKs, resulting in broader cusp tips, altered cusp patterns, and reduced concavity in crown outline. These alterations in crown outline led to a reduction in cervical tongue length, thereby inducing root fusion in Notum-deficient mice. Overall, these results suggest that the secondary EK size, regulated by the Wnt/Notum negative feedback loop, has a significant impact on the patterns of crown and root during tooth morphogenesis.
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Registered trials
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