51
|
Lee KE, Ko J, Shin TJ, Hyun HK, Lee SH, Kim JW. Oligodontia and curly hair occur with ectodysplasin-a mutations. J Dent Res 2014; 93:371-5. [PMID: 24487376 DOI: 10.1177/0022034514522059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Oligodontia is the developmental absence of more than 5 permanent teeth except for the third molar. Familial oligodontia can occur as an isolated form or as part of a genetic syndrome. Mutations in the MSX1, PAX9, AXIN2, EDA, and WNT10A genes have been identified in familial non-syndromic oligodontia. Ectodermal dysplasia is a group of syndromes involving abnormalities of the ectodermal structures and is comprised of more than 150 different forms. Mutations in the ectodysplasin-A (EDA) gene have been associated with X-linked hypohidrotic ectodermal dysplasia, and partial disruption of the EDA signaling pathway has been shown to cause an isolated form of oligodontia. We identified 2 X-linked oligodontia families and performed mutational analysis of the EDA gene. The mutational analysis revealed 2 novel EDA mutations: c.866G>T, p.Arg289Leu and c.1135T>G, p.Phe379Val (reference sequence NM_001399.4). These mutations were perfectly segregated with oligodontia and curly hair within each family and were not found in the 150 control X-chromosomes with the same ethnic background and in the exome variant server. This study broadens the mutational spectrum of the EDA gene and the understanding of X-linked oligodontia with curly hair.
Collapse
Affiliation(s)
- K E Lee
- Department of Pediatric Dentistry & Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
| | | | | | | | | | | |
Collapse
|
52
|
Novel missense mutations in the AXIN2 gene associated with non-syndromic oligodontia. Arch Oral Biol 2013; 59:349-53. [PMID: 24581859 DOI: 10.1016/j.archoralbio.2013.12.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/20/2013] [Accepted: 12/23/2013] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Oligodontia, which is the congenital absence of six or more permanent teeth excluding third molars, may contribute to masticatory dysfunction, speech alteration, aesthetic problems and malocclusion. To date, mutations in EDA, AXIN2, MSX1, PAX9, WNT10A, EDAR, EDARADD, NEMO and KRT 17 are known to associate with non-syndromic oligodontia. The aim of the study was to search for AXIN2 mutations in 96 patients with non-syndromic oligodontia. DESIGN We performed mutation analysis of 10 exons of the AXIN2 gene in 96 patients with isolated non-syndromic oligodontia. RESULTS We identified two novel missense mutations (Exon 3 c.923C>T and Exon 11 c.2490G>C) in two patients. One mutation (c.923C>T) results in a Thr308Met substitution and the other mutation (c.2490G>C) results in a Met830Ile substitution. CONCLUSIONS This is the first report indicating that mutations in AXIN2 are responsible for oligodontia in the Chinese population. Our findings indicate that AXIN2 can be regarded as a candidate gene for mutation detection in individuals with non-syndromic oligodontia in the Chinese population.
Collapse
|
53
|
Wang J, Xu Y, Chen J, Wang F, Huang R, Wu S, Shu L, Qiu J, Yang Z, Xue J, Wang R, Zhao J, Lai W. PAX9 polymorphism and susceptibility to sporadic non-syndromic severe anodontia: a case-control study in southwest China. J Appl Oral Sci 2013; 21:256-64. [PMID: 23857653 PMCID: PMC3881902 DOI: 10.1590/1679-775720130079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 04/24/2013] [Indexed: 12/20/2022] Open
Abstract
Our research aimed to look into the clinical traits and genetic mutations in sporadic
non-syndromic anodontia and to gain insight into the role of mutations of
PAX9, MSX1, AXIN2 and EDA in anodontia
phenotypes, especially for the PAX9.
Collapse
Affiliation(s)
- Jing Wang
- Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, P.R. China
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
54
|
He H, Han D, Feng H, Qu H, Song S, Bai B, Zhang Z. Involvement of and interaction between WNT10A and EDA mutations in tooth agenesis cases in the Chinese population. PLoS One 2013; 8:e80393. [PMID: 24312213 PMCID: PMC3842385 DOI: 10.1371/journal.pone.0080393] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 10/02/2013] [Indexed: 11/18/2022] Open
Abstract
Background Dental agenesis is the most common, often heritable, developmental anomaly in humans. Although WNT10A gene mutations are known to cause rare syndromes associated with tooth agenesis, including onycho-odontodermal dysplasia (OODD), Schöpf-Schulz-Passarge syndrome (SSPS), hypohidrotic ectodermal dysplasia (HED), and more than half of the cases of isolated oligodontia recently, the genotype-phenotype correlations and the mode of inheritance of WNT10A mutations remain unclear. The phenotypic expression with WNT10A mutations shows a high degree of variability, suggesting that other genes might function with WNT10A in regulating ectodermal organ development. Moreover, the involvement of mutations in other genes, such as EDA, which is also associated with HED and isolated tooth agenesis, is not clear. Therefore, we hypothesized that EDA mutations interact with WNT10A mutations to play a role in tooth agenesis. Additionally, EDA, EDAR, and EDARADD encode signaling molecules in the Eda/Edar/NF-κB signaling pathways, we also checked EDAR and EDARADD in this study. Methods WNT10A, EDA, EDAR and EDARADD were sequenced in 88 patients with isolated oligodontia and 26 patients with syndromic tooth agenesis. The structure of two mutated WNT10A and two mutated EDA proteins was analyzed. Results Digenic mutations of both WNT10A and EDA were identified in 2 of 88 (2.27%) isolated oligodontia cases and 4 of 26 (15.38%) syndromic tooth agenesis cases. No mutation in EDAR or EDARADD gene was found. Conclusions WNT10A and EDA digenic mutations could result in oligodontia and syndromic tooth agenesis in the Chinese population. Moreover, our results will greatly expand the genotypic spectrum of tooth agenesis.
Collapse
Affiliation(s)
- Huiying He
- Department of Prosthodontics, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Dong Han
- Department of Prosthodontics, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Hailan Feng
- Department of Prosthodontics, School and Hospital of Stomatology, Peking University, Beijing, China
- * E-mail:
| | - Hong Qu
- College of Life Sciences, Peking University, Beijing, China
| | - Shujuan Song
- Department of Genetics, Peking University Health Science Center, Beijing, China
| | - Baojing Bai
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Zhenting Zhang
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, China
| |
Collapse
|
55
|
Liu H, Han D, Wong S, Nan X, Zhao H, Feng H. rs929387 of GLI3 is involved in tooth agenesis in Chinese Han population. PLoS One 2013; 8:e80860. [PMID: 24278334 PMCID: PMC3835326 DOI: 10.1371/journal.pone.0080860] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 10/15/2013] [Indexed: 11/19/2022] Open
Abstract
Tooth agenesis is one of the most common anomalies of human dentition. Recent studies suggest that a number of genes are related to both syndromic and non-syndromic forms of hypodontia. In a previous study, we observed that polymorphism in rs929387 of GLI3 might be associated with hypodontia in the Chinese Han population based on a limited population. To further confirm this observation, in this study, we employed 89 individuals diagnosed with sporadic non-syndromic oligodontia (40 males and 49 females) to investigate the relationship between polymorphism in rs929387 of GLI3 and tooth agenesis. These individuals were analyzed with 273 subjects (125 males and 148 females) diagnosed with non-syndromic hypodontia and 200 healthy control subjects (100 males and 100 females). DNA was obtained from whole blood or saliva samples and genotyping was performed by a Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) method. Significant differences were observed in the allele and genotype frequencies of rs929387 of GLI3. Distributions of genotypes TT, TC and CC of rs929387 polymorphism were significantly different between the case group and the control group (P = 0.013) and C allelic frequency was higher in case group [P = 0.002, OR = 1.690, 95% CI (1.200-2.379)]. Additionally, our analysis shows that this difference is more pronounced when compared between the male case group and the male control group. The function study suggests that variation in GLI3 caused by rs929387 leads to a decrease in its transcriptional activity. These data demonstrated an association between rs929387 of GLI3 and non-syndromic tooth agenesis in Chinese Han individuals. This information may provide further understanding of the molecular mechanisms of tooth agenesis. Furthermore, GLI3 can be regarded as a marker gene for the risk of tooth agenesis.
Collapse
Affiliation(s)
- Haochen Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Dong Han
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Singwai Wong
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xu Nan
- Department of Medical Genetics, Peking University Health Science Center, Beijing, China
- Peking University Center for Human Disease Genomics, Peking University Health Science Center, Beijing, China
| | - Hongshan Zhao
- Department of Medical Genetics, Peking University Health Science Center, Beijing, China
- Peking University Center for Human Disease Genomics, Peking University Health Science Center, Beijing, China
- * E-mail: (HF); (HZ)
| | - Hailan Feng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
- * E-mail: (HF); (HZ)
| |
Collapse
|
56
|
Song S, Zhao R, He H, Zhang J, Feng H, Lin L. WNT10A variants are associated with non-syndromic tooth agenesis in the general population. Hum Genet 2013; 133:117-24. [PMID: 24043634 DOI: 10.1007/s00439-013-1360-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 09/05/2013] [Indexed: 10/26/2022]
Abstract
Tooth agenesis is the most common developmental dental anomaly. Absence of one or two permanent teeth is found in the majority of affected subjects. Very few patients suffer severe tooth agenesis. Recent studies revealed that WNT10A gene mutations caused syndromic and isolated severe tooth agenesis. In this study, to determine the contribution of WNT10A variants in different severities of tooth agenesis, we investigated the association between WNT10A variants and non-syndromic tooth agenesis in a Chinese population consisting of 505 tooth agenesis patients and 451 normal controls. Twenty-three novel non-synonymous variants were identified. WNT10A variants were detected in 15.8 % (75/474) of patients with 1-3 missing teeth and 51.6 % (16/31) of patients with 4 or more missing teeth. As compared with a frequency of 3.1 % in individuals with full dentition, variant allele frequencies were significantly elevated in both groups with tooth agenesis (p values of 1.00 × 10(-6) and 3.89 × 10(-23), respectively). Our findings showed that WNT10A variants were associated with non-syndromic tooth agenesis from mild to severe tooth agenesis, and the more severe tooth agenesis, the stronger association. Biallelic genotypes of WNT10A variants may have a pathogenic effect on tooth development. Presence of a single variant allele would be predisposing for causation with low penetrance. Together with WNT10A variant, there should be other genetic or environmental factors leading to biallelic variant-related variable clinical manifestations and single allele variant-related low penetrance. The frequent missing tooth positions in the WNT10A-related cases were consistent with that in the general population, suggesting WNT10A plays a critically important role in the etiology of general tooth agenesis.
Collapse
Affiliation(s)
- Shujuan Song
- Department of Medical Genetics, School of Basic Medical Sciences Peking University, 38# Xueyuan Road, Haidian District, Beijing, 100191, China,
| | | | | | | | | | | |
Collapse
|
57
|
Arte S, Parmanen S, Pirinen S, Alaluusua S, Nieminen P. Candidate gene analysis of tooth agenesis identifies novel mutations in six genes and suggests significant role for WNT and EDA signaling and allele combinations. PLoS One 2013; 8:e73705. [PMID: 23991204 PMCID: PMC3750013 DOI: 10.1371/journal.pone.0073705] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 07/22/2013] [Indexed: 11/24/2022] Open
Abstract
Failure to develop complete dentition, tooth agenesis, is a common developmental anomaly manifested most often as isolated but also as associated with many developmental syndromes. It typically affects third molars or one or few other permanent teeth but severe agenesis is also relatively prevalent. Here we report mutational analyses of seven candidate genes in a cohort of 127 probands with non-syndromic tooth agenesis. 82 lacked more than five permanent teeth excluding third molars, called as oligodontia. We identified 28 mutations, 17 of which were novel. Together with our previous reports, we have identified two mutations in MSX1, AXIN2 and EDARADD, five in PAX9, four in EDA and EDAR, and nine in WNT10A. They were observed in 58 probands (44%), with a mean number of missing teeth of 11.7 (range 4 to 34). Almost all of these probands had severe agenesis. Only few of the probands but several relatives with heterozygous genotypes of WNT10A or EDAR conformed to the common type of non-syndromic tooth agenesis, incisor-premolar hypodontia. Mutations in MSX1 and PAX9 affected predominantly posterior teeth, whereas both deciduous and permanent incisors were especially sensitive to mutations in EDA and EDAR. Many mutations in EDAR, EDARADD and WNT10A were present in several families. Biallelic or heterozygous genotypes of WNT10A were observed in 32 and hemizygous or heterozygous genotypes of EDA, EDAR or EDARADD in 22 probands. An EDARADD variant were in seven probands present together with variants in EDAR or WNT10A, suggesting combined phenotypic effects of alleles in distinct genes.
Collapse
Affiliation(s)
- Sirpa Arte
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
- Department of Oral and Maxillofacial Diseases, Helsinki University Central Hospital, Helsinki, Finland
| | - Satu Parmanen
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
| | - Sinikka Pirinen
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
| | - Satu Alaluusua
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
- Department of Oral and Maxillofacial Diseases, Helsinki University Central Hospital, Helsinki, Finland
| | - Pekka Nieminen
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
| |
Collapse
|
58
|
Ruf S, Klimas D, Hönemann M, Jabir S. Genetic background of nonsyndromic oligodontia: a systematic review and meta-analysis. J Orofac Orthop 2013; 74:295-308. [PMID: 23828301 DOI: 10.1007/s00056-013-0138-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 11/02/2012] [Indexed: 12/28/2022]
Abstract
OBJECTIVES The goal of this work was to identify all known gene mutations that have been associated with the development of nonsyndromic oligodontia. METHODS A systematic literature search was performed electronically in two databases (PubMed, Medpilot) supplemented by a hand search. Articles published up to March 2012 were considered. Search terms were combined as follows: oligodontia and genes, oligodontia and mutations, tooth agenesis and genes, and tooth agenesis and mutations. A meta-analysis of the data was conducted based on the Tooth Agenesis Code (TAC). RESULTS Seven genes are currently known to have a potential for causing nonsyndromic oligodontia. All these genes vary both in terms of number of identified mutations and in terms of number of documented patients: 33 mutations and 93 patients are on record for PAX9, 10 mutations and 51 patients for EDA, 12 mutations and 33 patients for MSX1, 6 mutations and 17 patients for AXIN2, and 1 mutation in 1 patient for EDARADD, NEMO, and KRT17 each. A total TAC score of 250 was found to have cutoff properties, as 100% of MSX1 and 80% of EDA patients exhibited TAC ≤ 250, whereas 96.9% of PAX9 and 90% of AXIN2 patients exhibited TAC >250. Furthermore, 94.3% of EDA patients but only 28.6% of MSX1 patients exhibited odd-numbered TAC scores in at least one quadrant, and 72.7% of PAX9 but none of the AXIN2 patients were found to show TAC scores of 112 in at least one quadrant. CONCLUSION In order of decreasing frequency, PAX9, EDA, MSX1, AXIN2, EDARADD, NEMO, and KRT17 are the seven genes currently known to have a potential for causing nonsyndromic oligodontia. TAC scores enabled us to identify an association between oligodontia phenotypes and genotypes in the patients covered by this meta-analysis.
Collapse
Affiliation(s)
- Sabine Ruf
- Department of Orthodontics, Medical Center for Dental and Oral Medicine, Justus-Liebig-Universität Gießen, Germany.
| | | | | | | |
Collapse
|
59
|
Yang Y, Luo L, Xu J, Zhu P, Xue W, Wang J, Li W, Wang M, Cheng K, Liu S, Tang Z, Ring BZ, Su L. Novel EDA p.Ile260Ser mutation linked to non-syndromic hypodontia. J Dent Res 2013; 92:500-6. [PMID: 23625373 DOI: 10.1177/0022034513487557] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hypodontia, a tooth developmental disease, can affect chewing and pronunciation. Mutations in the ectodysplasin-A (EDA) gene can lead to both X-linked hypohidrotic ectodermal dysplasia (XLHED) and non-syndromic hypodontia (NSH). However, the mechanism by which these 2 related but different disorders are caused by the distinct mutations in EDA is unknown. In this study, we identified a novel missense mutation (c.779 T>G) in a Chinese family with NSH via a direct sequencing approach. This mutation results in an Ile260Ser substitution in the tumor necrosis factor (TNF) homology domain. Homology modeling suggests that this alteration may induce a conformational change in the hydrophobic center of the TNF homology domain. Furthermore, by exploring systematic 3D conformation analysis and calculation of residue relative solvent accessibility (RSA) for all the reported mutated amino acid sites on EDA's TNF homology domain, we found that the site mutations at the interior may be linked to XLHED, while those at the surface are more likely to be associated with NSH. These findings may aid in the discovery of unidentified functionally significant mutation sites in the EDA gene and provide a new way to clarify the mechanisms by which the XLHED and NSH phenotypes arise from mutations in the same gene.
Collapse
Affiliation(s)
- Y Yang
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
60
|
Nikopensius T, Annilo T, Jagomägi T, Gilissen C, Kals M, Krjutškov K, Mägi R, Eelmets M, Gerst-Talas U, Remm M, Saag M, Hoischen A, Metspalu A. Non-syndromic Tooth Agenesis Associated with a Nonsense Mutation in Ectodysplasin-A (EDA). J Dent Res 2013; 92:507-11. [DOI: 10.1177/0022034513487210] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Mutations in the ectodysplasin-A ( EDA) gene have been generally associated with X-linked hypohidrotic ectodermal dysplasia (XLHED). Recently, missense mutations in EDA have been reported to cause familial non-syndromic tooth agenesis. In this study, we report a novel EDA mutation in an Estonian family segregating non-syndromic tooth agenesis with variable expressivity. Affected individuals had no associated defects in other ectodermal organs. Using whole-exome sequencing, we identified a heterozygous nonsense mutation c.874G>T (p.Glu292X) in the TNF homology domain of EDA in all affected female patients. This protein-altering variant arose de novo, and the potentially causative allele was transmitted to affected offspring from the affected mother. We suggest that the dental phenotype variability described in heterozygous female carriers of EDA mutation may occur because of the differential pattern of X-chromosome inactivation, which retains reduced levels of EDA-receptor signaling in tissues involved in tooth morphogenesis. This results in selective tooth agenesis rather than XLHED phenotype. The present study broadens the mutation spectrum for this locus and demonstrates that EDA mutations may result in non-syndromic tooth agenesis in heterozygous females.
Collapse
Affiliation(s)
- T. Nikopensius
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
- Estonian Genome Center, University of Tartu, Estonia
| | - T. Annilo
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - T. Jagomägi
- Department of Stomatology, Faculty of Medicine, University of Tartu, Estonia
| | - C. Gilissen
- Department of Human Genetics, Nijmegen Center for Molecular Life Sciences, Institute for Genetic and Metabolic Disease, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - M. Kals
- Estonian Genome Center, University of Tartu, Estonia
| | - K. Krjutškov
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
- Department of Biosciences and Nutrition, Karolinska Institute, Huddinge, Sweden
| | - R. Mägi
- Estonian Genome Center, University of Tartu, Estonia
| | - M. Eelmets
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - U. Gerst-Talas
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - M. Remm
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - M. Saag
- Department of Stomatology, Faculty of Medicine, University of Tartu, Estonia
| | - A. Hoischen
- Department of Human Genetics, Nijmegen Center for Molecular Life Sciences, Institute for Genetic and Metabolic Disease, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - A. Metspalu
- Institute of Molecular and Cell Biology, University of Tartu, Estonia
- Estonian Genome Center, University of Tartu, Estonia
| |
Collapse
|
61
|
GHERGIE MIRCEA, COCÎRLA ELVIRA, LUPAN IULIA, KELEMEN BEATRICES, POPESCU OCTAVIAN. Genes and dental disorders. CLUJUL MEDICAL (1957) 2013; 86:196-9. [PMID: 26527946 PMCID: PMC4462493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 09/09/2013] [Indexed: 11/02/2022]
Abstract
In recent decades with the advancement of molecular research, information regarding specific molecular mechanisms has exploded. In the present review we present the molecular basis of dental pathologies that are of particular interest to clinicians.
Collapse
Affiliation(s)
- MIRCEA GHERGIE
- Faculty of Dental Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - ELVIRA COCÎRLA
- Faculty of Dental Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - IULIA LUPAN
- Molecular Biology Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University, Cluj-Napoca, Romania,Address for correspondence:
| | - BEATRICE S. KELEMEN
- Molecular Biology Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University, Cluj-Napoca, Romania
| | - OCTAVIAN POPESCU
- Molecular Biology Center, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeş-Bolyai University, Cluj-Napoca, Romania,Institute of Biology, Romanian Academy, Bucharest, Romania
| |
Collapse
|
62
|
Créton M, van den Boogaard MJ, Maal T, Verhamme L, Fennis W, Carels C, Kuijpers-Jagtman AM, Cune M. Three-dimensional analysis of tooth dimensions in the MSX1-missense mutation. Clin Oral Investig 2012; 17:1437-45. [PMID: 22936299 DOI: 10.1007/s00784-012-0828-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2011] [Accepted: 08/07/2012] [Indexed: 11/26/2022]
Abstract
OBJECTIVES A novel, 3D technique to measure the differences in tooth crown morphology between the MSX1 cases and non-affected controls was designed to get a better understanding of dental phenotype-genotype associations. MATERIALS AND METHODS Eight Dutch subjects from a single family with tooth agenesis, all with an established nonsense mutation c.332 C > A, p. Ser 111 Stop in exon 1 of MSX1, were compared with unaffected controls regarding several aspects of tooth crown morphology of incisor and molar teeth. A novel method of quantitative three-dimensional analysis was used to detect differences. RESULTS Statistically significant shape differences were observed for the maxillary incisor in the MSX1 family compared with the controls on the following parameters: surface area, buccolingual dimension, squareness, and crown volume (P ≤ 0.002). Molar crown shape was unaffected. CONCLUSIONS A better understanding of dental phenotype-genotype associations may contribute to earlier diagnosis of some multiple-anomaly congenital syndromes involving dental anomalies. CLINICAL RELEVANCE A "shape database" that includes associated gene mutations resulting from developmental syndromes may facilitate the genetic identification of hypodontia cases.
Collapse
Affiliation(s)
- Marijn Créton
- Department of Oral and Maxillofacial Surgery, Prosthodontics and Special Dental Care, University Medical Centre Utrecht, Utrecht, The Netherlands.
| | | | | | | | | | | | | | | |
Collapse
|
63
|
Bashyam M, Chaudhary A, Reddy E, Reddy V, Acharya V, Nagarajaram H, Devi A, Bashyam L, Dalal A, Gupta N, Kabra M, Agarwal M, Phadke S, Tainwala R, Kumar R, Hariharan S. A founder ectodysplasin A receptor (EDAR) mutation results in a high frequency of the autosomal recessive form of hypohidrotic ectodermal dysplasia in India. Br J Dermatol 2012; 166:819-29. [DOI: 10.1111/j.1365-2133.2011.10707.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
64
|
Mitsiadis TA, Luder HU. Genetic basis for tooth malformations: from mice to men and back again. Clin Genet 2011; 80:319-29. [DOI: 10.1111/j.1399-0004.2011.01762.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
65
|
Heuberer S, Dvorak G, Zauza K, Watzek G. The use of onplants and implants in children with severe oligodontia: a retrospective evaluation. Clin Oral Implants Res 2011; 23:827-31. [PMID: 21631598 DOI: 10.1111/j.1600-0501.2011.02226.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Simone Heuberer
- Department of Oral Surgery, Bernhard Gottlieb School of Dentistry, Medical University of Vienna, Sensengasse, Vienna, Austria.
| | | | | | | |
Collapse
|
66
|
Bergendal B, Klar J, Stecksén-Blicks C, Norderyd J, Dahl N. Isolated oligodontia associated with mutations in EDARADD, AXIN2, MSX1, and PAX9 genes. Am J Med Genet A 2011; 155A:1616-22. [PMID: 21626677 DOI: 10.1002/ajmg.a.34045] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Accepted: 03/17/2011] [Indexed: 12/30/2022]
Abstract
Oligodontia is defined as the congenital lack of six or more permanent teeth, excluding third molars. Oligodontia as well as hypodontia (lack of one or more permanent teeth) are highly heritable conditions associated with mutations in the AXIN2, MSX1, PAX9, EDA, and EDAR genes. Here we define the prevalence of mutations in the AXIN2, MSX1, PAX9, EDA, and EDAR genes, and the novel candidate gene EDARADD in a cohort of 93 Swedish probands with non-syndromic, isolated oligodontia. Mutation screening was performed using denaturing gradient gel electrophoresis and DNA sequence analysis. Analyses of the coding sequences of the six genes showed sequence alterations predicted to be damaging or potentially damaging in ten of 93 probands (10.8%). Mutations were identified in the EDARADD (n = 1), AXIN2 (n = 3), MSX1 (n = 2), and PAX9 (n = 4) genes, respectively. None of the 10 probands with mutations had other self-reported symptoms from ectodermal tissues. The oral parameters were similar when comparing individuals with and without mutations but a family history of oligodontia was three times more frequent for probands with mutations. EDARADD mutations have previously been reported in a few families segregating hypohidrotic ectodermal dysplasia and this is, to our knowledge, the first report of an EDARADD mutation associated with isolated oligodontia.
Collapse
Affiliation(s)
- Birgitta Bergendal
- National Oral Disability Centre, The Institute for Postgraduate Dental Education, Jönköping, Sweden
| | | | | | | | | |
Collapse
|
67
|
Zhang J, Han D, Song S, Wang Y, Zhao H, Pan S, Bai B, Feng H. Correlation between the phenotypes and genotypes of X-linked hypohidrotic ectodermal dysplasia and non-syndromic hypodontia caused by ectodysplasin-A mutations. Eur J Med Genet 2011; 54:e377-82. [PMID: 21457804 DOI: 10.1016/j.ejmg.2011.03.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 03/07/2011] [Indexed: 11/29/2022]
Abstract
Mutations in the ectodysplasin-A (EDA) gene can cause both X-linked hypohidrotic ectodermal dysplasia (XLHED) and non-syndromic hypodontia (NSH). The correlation between the phenotypes and genotypes of these two conditions has yet to be described. In the present study, 27 non-consanguineous Chinese XLHED subjects were screened and 17 EDA mutations were identified. In order to investigate the correlation between genotype and phenotype, we also reviewed related studies on NSH subjects with confirmed EDA mutations and compared the differences in the clinical manifestations and EDA mutations of the two conditions. Tooth agenesis was observed in addition to abnormalities of other ectodermal organs. Tooth agenesis was more severe in XLHED subjects than in NSH subjects, and there were statistically significant differences in 10 tooth positions in the XLHED and NSH subjects, including canines, premolars, and molars. With the exception of one splicing mutation, all mutations in the NSH subjects were missense mutations, and these were most likely to be located in the tumor necrosis factor (TNF) domain. Further, more than half of the mutations in the XLHED subjects were speculated to be loss of function mutations, such as nonsense, insertion, and deletion mutations, and these mutations were distributed across all EDA domains. Our results show that there exists a correlation between the phenotypes and genotypes of XLHED and NSH subjects harboring EDA mutations. Further, our findings suggest that NSH is probably a variable expression of XLHED. This finding might be useful for clinical diagnosis and genetic counseling in clinical practice, and provides some insight into the different manifestations of EDA mutations in different ectodermal organs.
Collapse
Affiliation(s)
- Jin Zhang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China
| | | | | | | | | | | | | | | |
Collapse
|
68
|
THALJI GHADEERN, COOPER LYNDONF. The Role of Complete Overdentures in Esthetic Rehabilitation of the Adolescent Oligodontia Patient. A Case Report. J ESTHET RESTOR DENT 2010; 22:213-21. [DOI: 10.1111/j.1708-8240.2010.00341.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
69
|
Kurban M, Michailidis E, Wajid M, Shimomura Y, Christiano AM. A common founder mutation in the EDA-A1 gene in X-linked hypodontia. Dermatology 2010; 221:243-7. [PMID: 20628232 DOI: 10.1159/000314329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Accepted: 04/26/2010] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND X-linked recessive hypohidrotic ectodermal dysplasia (XLHED; OMIM 305100) is a rare genodermatosis characterized clinically by developmental abnormalities affecting the teeth, hair and sweat glands. Mutations in the EDA-A1 gene have been associated with XLHED. Recently, mutations in the EDA-A1 gene have also been implicated in isolated X-linked recessive hypodontia (XLRH; OMIM 313500). METHODS We analyzed the DNA from members of 3 unrelated Pakistani families with XLRH for mutations in the EDA-A1 gene through direct sequencing and performed haplotype analysis. RESULTS We identified a common missense mutation in both families designated c.1091T→C (p.M364T). Haplotype analysis revealed that this is a founder mutation in the 3 families. CONCLUSION XLHED is a syndrome with variable clinical presentations that contain a spectrum of findings, including hypodontia. We suggest that XLRH should be grouped under XLHED as both share several phenotypic and genotypic similarities.
Collapse
Affiliation(s)
- Mazen Kurban
- Department of Dermatology, Columbia University, New York, N.Y., USA
| | | | | | | | | |
Collapse
|
70
|
Clauss F, Chassaing N, Smahi A, Vincent MC, Calvas P, Molla M, Lesot H, Alembik Y, Hadj-Rabia S, Bodemer C, Manière MC, Schmittbuhl M. X-linked and autosomal recessive Hypohidrotic Ectodermal Dysplasia: genotypic-dental phenotypic findings. Clin Genet 2010; 78:257-66. [DOI: 10.1111/j.1399-0004.2010.01376.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
71
|
Mues G, Tardivel A, Willen L, Kapadia H, Seaman R, Frazier-Bowers S, Schneider P, D'Souza RN. Functional analysis of Ectodysplasin-A mutations causing selective tooth agenesis. Eur J Hum Genet 2010; 18:19-25. [PMID: 19623212 PMCID: PMC2795113 DOI: 10.1038/ejhg.2009.127] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2009] [Revised: 06/18/2009] [Accepted: 06/19/2009] [Indexed: 11/09/2022] Open
Abstract
Mutations of the Ectodysplasin-A (EDA) gene are generally associated with the syndrome hypohidrotic ectodermal dysplasia (MIM 305100), but they can also manifest as selective, non-syndromic tooth agenesis (MIM300606). We have performed an in vitro functional analysis of six selective tooth agenesis-causing EDA mutations (one novel and five known) that are located in the C-terminal tumor necrosis factor homology domain of the protein. Our study reveals that expression, receptor binding or signaling capability of the mutant EDA1 proteins is only impaired in contrast to syndrome-causing mutations, which we have previously shown to abolish EDA1 expression, receptor binding or signaling. Our results support a model in which the development of the human dentition, especially of anterior teeth, requires the highest level of EDA-receptor signaling, whereas other ectodermal appendages, including posterior teeth, have less stringent requirements and form normally in response to EDA mutations with reduced activity.
Collapse
Affiliation(s)
- Gabriele Mues
- Department of Biomedical Sciences, Texas A&M University Health Science Center, Baylor College of Dentistry, Dallas, TX, USA
| | - Aubry Tardivel
- Department of Biochemistry, University of Lausanne, Epalinges, CH, Switzerland
| | - Laure Willen
- Department of Biochemistry, University of Lausanne, Epalinges, CH, Switzerland
| | - Hitesh Kapadia
- Department of Biomedical Sciences, Texas A&M University Health Science Center, Baylor College of Dentistry, Dallas, TX, USA
| | - Robyn Seaman
- Department of Biomedical Sciences, Texas A&M University Health Science Center, Baylor College of Dentistry, Dallas, TX, USA
| | - Sylvia Frazier-Bowers
- Department of Orthodontics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Pascal Schneider
- Department of Biochemistry, University of Lausanne, Epalinges, CH, Switzerland
| | - Rena N D'Souza
- Department of Biomedical Sciences, Texas A&M University Health Science Center, Baylor College of Dentistry, Dallas, TX, USA
| |
Collapse
|