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Erschienen in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie 1/2022

16.03.2021 | Original Article

Targeted next-generation sequencing (NGS) analysis of mutations in nonsyndromic tooth agenesis candidate genes

Analysis of a Turkish cohort

verfasst von: Gül Keskin, Kadri Karaer, Zübeyde Uçar Gündoğar

Erschienen in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie | Sonderheft 1/2022

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Abstract

Purpose

The goal of this study was to assess genes known to be associated with tooth agenesis with next-generation sequencing (NGS) and analyze the relationship between these mutations and tooth agenesis phenotypes.

Methods

The study included 49 individuals aged between 6 and 13 years. A total of 14 genes related to nonsyndromic tooth agenesis were selected for targeted NGS. Mutations in Msh homeobox 1 (MSX1), Wnt family member 10A (WNT10A), axis inhibition protein 2 (AXIN2), keratin 17 (KRT17), lipoprotein receptor 6 (LRP6), and secreted protein, acidic and rich in cysteine (SPARC)-related modular calcium-binding protein 2 (SMOC2) genes were investigated.

Results

Mutations in six genes were detected in 12 of 49 subjects. Fifteen variants were identified, including the unknown variants c.657G > C in MSX1, c.2029C > T in AXIN2, and c.1603A > T in LRP6. Second premolar tooth agenesis was observed in 43.3% of all tooth agenesis cases with mutations, and it was the predominant phenotype observed for each mutated gene, followed by tooth agenesis of the lateral incisors (20%).

Conclusions

Variations in MSX1, WNT10A, AXIN2, KRT17, LRP6, and SMOC2 may be a risk factor for hypodontia or oligodontia in the Turkish population.
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Metadaten
Titel
Targeted next-generation sequencing (NGS) analysis of mutations in nonsyndromic tooth agenesis candidate genes
Analysis of a Turkish cohort
verfasst von
Gül Keskin
Kadri Karaer
Zübeyde Uçar Gündoğar
Publikationsdatum
16.03.2021
Verlag
Springer Medizin
Erschienen in
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie / Ausgabe Sonderheft 1/2022
Print ISSN: 1434-5293
Elektronische ISSN: 1615-6714
DOI
https://doi.org/10.1007/s00056-021-00284-4

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