Genetic analysis: Wnt and other pathways in nonsyndromic tooth agenesis.

Genetic analysis: Wnt and other pathways in nonsyndromic tooth agenesis.
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遗传分析:非综合征性牙齿发育不全中的 Wnt 和其他通路

DOI:
10.1111/odi.12931
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发表时间:
2019-04
期刊:
影响因子:
3.8
通讯作者:
Cai T
Cai T
中科院分区:
医学3区
文献类型:
--
作者:
Yu M;Wong SW;Han D;Cai T

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牙齿发育不全(TA)是影响牙齿数量的最常见的发育异常之一。对公开的数据库进行广泛的分析,发现了15个与非综合征性TA有关的致病基因,以及它们在WNT/β-连环蛋白、转化生长因子-β/骨形态发生蛋白和EDA/EDAR/NF-κB中的信号通路。在15个与非综合征TA相关的基因的198个不同突变中,182个突变(91.9%)来自7个基因(AXIN2、EDA、LRP6、Msx1、PAX9、WNT10A和WNT10B),而其余8个基因(BMP4、Dkk1、EDAR、EDARADD、GREM2、KREMEN1、LTBP3和SMOC2)则有16个突变(8.1%)。此外,根据上述7个基因的非综合征TA突变与综合征突变的比率进行的特异性分析显示,PAX9、WNT10A、Msx1、WNT10B、LRP6、AXIN2和EDA的特异性分别为98.2%、58.9%、56.6%、41.2%、31.4%、23.8%和8.4%。这些发现强调了Wnt和Wnt相关途径在这种杂合性疾病的遗传病因学中的重要作用,并为发现与牙齿发育不全相关的新的分子机制提供了新的线索。
Tooth agenesis (TA) is one of the most common developmental anomalies that affects the number of teeth. An extensive analysis of publicly accessible databases revealed 15 causative genes responsible for non-syndromic TA, along with their signaling pathways in Wnt/β-catenin, TGF-β/BMP and Eda/Edar/NF-κB. However, genotype-phenotype correlation analysis showed that most of the causal genes are also responsible for syndromic TA or other conditions. In a total of 198 different mutations of the 15 genes responsible for non-syndromic TA, 182 mutations (91.9%) are derived from 7 genes (AXIN2, EDA, LRP6, MSX1, PAX9, WNT10A and WNT10B) compared to the remaining 16 mutations (8.1%) identified in the remaining 8 genes (BMP4, DKK1, EDAR, EDARADD, GREM2, KREMEN1, LTBP3 and SMOC2). Furthermore, specificity analysis in terms of the ratio of non-syndromic TA mutations verses syndromic mutations in each of the aforementioned 7 genes showed a 98.2% specificity rate in PAX9, 58.9% in WNT10A, 56.6% in MSX1, 41.2% in WNT10B, 31.4% in LRP6, 23.8% in AXIN2, and 8.4% in EDA. These findings underscore an important role of the Wnt and Wnt-associated pathways in the genetic etiology of this heterozygous disease and shed new lights on the discovery of novel molecular mechanisms associated with tooth agenesis.
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发表时间: 2018-04
期刊: American journal of medical genetics. Part A
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