Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Τετάρτη 24 Οκτωβρίου 2018

KDF1 is a novel candidate gene of non-syndromic tooth agenesis

Publication date: Available online 23 October 2018

Source: Archives of Oral Biology

Author(s): Binghui Zeng, Hui Lu, Xue Xiao, Xinlin Yu, Sijie Li, Ling Zhu, Dongsheng Yu, Wei Zhao

Abstract
Objective

Tooth agenesis (TA) is featured by congenital loss of teeth, and can be divided into two subtypes, non-syndromic TA (NSTA) and syndromic TA (STA). Although 12 candidate genes of NSTA have been revealed, the genetic basis of NSTA needs to be further studied. We noticed an overlap of candidate genes between NSTA and STA, and hypothesized that some candidate genes of STA may be new candidate genes of NSTA.

Methods

Sanger sequencing, whole exome sequencing, bioinformatics analyses and immunohistochemical staining were performed to reveal the genetic basis of the patients in a family with NSTA.

Results

No pathogenic mutation was found in the 12 candidate genes of NSTA. We screened the variants of 76 STA candidate genes and identified a novel pathogenic mutation c.G908C (p.R303 P) inKeratinocyte Differentiation Factor 1 (KDF1). This mutation was cosegregated with the disease in the family. Bioinformatics analyses predicted the mutation to be pathogenic. Immunohistochemical staining of kdf1 in developing tooth germs indicated that kdf1 expression is important for the development of teeth.

Conclusions

This study identifiedKDF1 as a novel candidate gene for NSTA. STA candidate genes may be a promising source of new NSTA genes.



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