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Liu Y, Sun J, Zhang C, Wu Y, Ma S, Li X, Wu X, Gao Q. Compound heterozygous WNT10A missense variations exacerbated the tooth agenesis caused by hypohidrotic ectodermal dysplasia. BMC Oral Health 2024; 24:136. [PMID: 38280992 PMCID: PMC10822191 DOI: 10.1186/s12903-024-03888-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 01/12/2024] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND The aim of this study was to analyse the differences in the phenotypes of missing teeth between a pair of brothers with hypohidrotic ectodermal dysplasia (HED) and to investigate the underlying mechanism by comparing the mutated gene loci between the brothers with whole-exome sequencing. METHODS The clinical data of the patients and their mother were collected, and genomic DNA was extracted from peripheral blood samples. By Whole-exome sequencing filtered for a minor allele frequency (MAF) ≤0.05 non-synonymous single-nucleotide variations and insertions/deletions variations in genes previously associated with tooth agenesis, and variations considered as potentially pathogenic were assessed by SIFT, Polyphen-2, CADD and ACMG. Sanger sequencing was performed to detect gene variations. The secondary and tertiary structures of the mutated proteins were predicted by PsiPred 4.0 and AlphaFold 2. RESULTS Both brothers were clinically diagnosed with HED, but the younger brother had more teeth than the elder brother. An EDA variation (c.878 T > G) was identified in both brothers. Additionally, compound heterozygous variations of WNT10A (c.511C > T and c.637G > A) were identified in the elder brother. Digenic variations in EDA (c.878 T > G) and WNT10A (c.511C > T and c.637G > A) in the same patient have not been reported previously. The secondary structure of the variant WNT10A protein showed changes in the number and position of α-helices and β-folds compared to the wild-type protein. The tertiary structure of the WNT10A variant and molecular simulation docking showed that the site and direction where WNT10A binds to FZD5 was changed. CONCLUSIONS Compound heterozygous WNT10A missense variations may exacerbate the number of missing teeth in HED caused by EDA variation.
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Affiliation(s)
- Yiting Liu
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Jing Sun
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Caiqi Zhang
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yi Wu
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Siyuan Ma
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Xuechun Li
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Xiaoshan Wu
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China.
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China.
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China.
| | - Qingping Gao
- The Stomatology Center of Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China.
- Academician Workstation for Oral & Maxillofacial Regenerative Medicine, Central South University, Changsha, Hunan Province, China.
- Research Center of Oral and Maxillofacial Development and Regeneration, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.
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Predictive Analysis of Maxillary Canine Impaction through Sella Turcica Bridging, Ponticulus Posticus Calcification, and Lateral Incisor Anomalies: A Retrospective Observational Study. Methods Protoc 2022; 5:mps5060091. [PMID: 36412813 PMCID: PMC9680360 DOI: 10.3390/mps5060091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/09/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022] Open
Abstract
Maxillary canine impaction is an increasing dental anomaly and is often related to other dento-skeletal anomalies. The aim of this work is to support the clinician in evaluating the relationship between a displaced maxillary canine and clinical (the features of lateral incisors)/skeletal (ponticulus posticus and sella turcica bridging) anomalies through orthopanoramic radiographs, lateral cephalograms, and plaster casts to identify the parameters that best predict maxillary canine impaction. A retrospective observational study was carried out on the analysis of the medical records, radiographic findings (panoramic radiographs and lateral cephalograms), and plaster casts of 203 orthodontic patients divided into a case group, with at least one impacted maxillary canine, and a control group, without an impaction. A chi-square test and logistic regression analysis were used to analyze the data. A statistically significant association was found between the impaction of the maxillary canine and the female sex, the bridging of the sella turcica, the ponticulus posticus calcification, and the anomaly of the lateral incisor; a logistic regression revealed that these significant variables were found to be positive predictors of impacted maxillary canines, particularly in reference to the impaction in the palatal area. Finding one of these clinical and radiographic elements can represent a predictive sign of the possible impaction of the maxillary canine.
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Kanchanasevee C, Sriwattanapong K, Theerapanon T, Thaweesapphithak S, Chetruengchai W, Porntaveetus T, Shotelersuk V. Phenotypic and Genotypic Features of Thai Patients With Nonsyndromic Tooth Agenesis and WNT10A Variants. Front Physiol 2020; 11:573214. [PMID: 33329022 PMCID: PMC7710930 DOI: 10.3389/fphys.2020.573214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/27/2020] [Indexed: 11/18/2022] Open
Abstract
Tooth agenesis is one of the most common orodental anomalies that demonstrate phenotypic and genotypic heterogeneity with a prevalence of 2.5%–7%. Mutations in WNT10A have been proposed to be the most common cause of nonsyndromic tooth agenesis (NSTA). The aim of this study was to characterize the dental features and genetic variants of NSTA in a Thai population. We recruited 13 unrelated patients with NSTA who attended the Faculty of Dentistry, Chulalongkorn University, Thailand, from 2017 to 2019. All 13 underwent whole exome sequencing that identified likely pathogenic genetic variants, all in WNT10A, in five patients. All five patients had second premolar agenesis, while three also had absent or peg-shaped upper lateral incisors. Patient 1 possessed a novel heterozygous duplication, c.916_918dupAAC (p.Asn306dup) in WNT10A. Patients 2 and 3 harbored a heterozygous and homozygous c.637G > A (p.Gly213Ser) in WNT10A, respectively. Patients 4 possessed a heterozygous c.511C > T (p.Arg171Cys) in WNT10A. Patient 5 harbored a homozygous c.511C > T (p.Arg171Cys) in WNT10A and a novel heterozygous c.413A > T (p.Asn138Ile) in EDARADD, suggesting digenic inheritance. We recruited another 18 family members of these five patients. Out of 23 participants, homozygous WNT10A variants were identified in 2 patients and heterozygous variants in 17 individuals. Both homozygous patients had NSTA. Eight out of 17 heterozygous individuals (8/17) had NSTA or a peg-shaped lateral incisor, indicating a 47% penetrance of the heterozygous variants or 53% (10/19) penetrance of either homozygous or heterozygous variants in WNT10A. The frequencies of the c.511C > T in our in-house 1,876 Thai exome database, Asian populations, and non-Asian populations were 0.016, 0.005–0.033, and 0.001, respectively; while those of the c.637G > A were 0.016, 0.004–0.029, and 0.000, respectively. In conclusion, our study reports two novel variants with one each in WNT10A and EDARADD, expanding the genotypic spectra of NSTA. Second premolar agenesis is a common phenotype in affected individuals with variants in WNT10A; however, its penetrance is incomplete. Lastly, the different frequencies of WNT10A variants, c.511C > T and c.637G > A, in diverse populations might contribute to the prevalence range of NSTA between continents.
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Affiliation(s)
- Charinya Kanchanasevee
- Geriatric Dentistry and Special Patients Care International Program, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Kanokwan Sriwattanapong
- Genomics and Precision Dentistry Research Unit, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Thanakorn Theerapanon
- Genomics and Precision Dentistry Research Unit, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Sermporn Thaweesapphithak
- Center of Excellence for Regenerative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Wanna Chetruengchai
- Center of Excellence for Medical Genomics, Medical Genomics Cluster, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Excellence Center for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Thantrira Porntaveetus
- Genomics and Precision Dentistry Research Unit, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Vorasuk Shotelersuk
- Center of Excellence for Medical Genomics, Medical Genomics Cluster, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Excellence Center for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
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Errichiello E, Malara A, Grimod G, Avolio L, Balduini A, Zuffardi O. Low penetrance COL5A1 variants in a young patient with intracranial aneurysm and very mild signs of Ehlers-Danlos syndrome. Eur J Med Genet 2020; 64:104099. [PMID: 33189937 DOI: 10.1016/j.ejmg.2020.104099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/18/2020] [Accepted: 11/04/2020] [Indexed: 11/26/2022]
Abstract
Spontaneous cervical artery dissection (CeAD) is a major cause of ischemic stroke in young adults, whose genetic susceptibility factors are still largely unknown. Nevertheless, subtle ultrastructural connective tissue alterations (especially in the collagen fibril morphology) are recognized in a large proportion of CeAD patients, in which recent genetic investigations reported an enrichment of variants in genes associated with known connective tissue disorders. In this regard, COL5A1 variants have been reported in a small subset of CeAD patients, with or without classical Ehlers-Danlos syndrome (cEDS) features. We investigated a 22-year-old patient with intracranial aneurysm and mild connective tissue manifestations reminiscent of EDS. Whole-exome sequencing identified two COL5A1 missense variants in trans configuration: NM_000093.5:c.[1588G>A];[4135C>T], NP_000084.3:p.[(Gly530Ser)];[(Pro1379Ser)]. Functional assays demonstrated a significant decrease of collagen α1(V) chain expression in both heterozygous parents compared to control cells, and an additive effect of these two variants in the proband. Interestingly, both parents manifested very subtle EDS signs, such as atrophic scars, recurrent bone fractures, colonic diverticulosis, varicose veins, and osteoarthritis. Our findings emphasize the involvement of COL5A1 in the predisposition to vascular phenotypes and provide novel insights on the c.1588G>A variant, whose functional significance has not been definitely established. In fact, it was previously reported as both "disease modifying", and as a biallelic causative mutation (with heterozygous individuals showing subtle clinical signs of cEDS). We speculated that the c.1588G>A variant might lead to overt phenotype in combination with additional genetic "hits" lowering the collagen α1(V) chain expression below a hypothetical disease threshold.
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Affiliation(s)
- Edoardo Errichiello
- Medical Genetics Unit, Department of Molecular Medicine, University of Pavia, Pavia, Italy.
| | - Alessandro Malara
- Department of Molecular Medicine, University of Pavia, Pavia, Italy; Laboratory of Biochemistry, Biotechnology and Advanced Diagnostics, Istituto di Ricovero e Cura a Carattere Scientifico San Matteo Foundation, Pavia, Italy
| | - Gianluca Grimod
- Unit of Neurosurgery, Department of Neuroscience, Hospital A. Manzoni, Lecco, Italy
| | - Luigi Avolio
- Department of Pediatric Surgery, Istituto di Ricovero e Cura a Carattere Scientifico San Matteo Foundation, Pavia, Italy
| | - Alessandra Balduini
- Department of Molecular Medicine, University of Pavia, Pavia, Italy; Laboratory of Biochemistry, Biotechnology and Advanced Diagnostics, Istituto di Ricovero e Cura a Carattere Scientifico San Matteo Foundation, Pavia, Italy
| | - Orsetta Zuffardi
- Medical Genetics Unit, Department of Molecular Medicine, University of Pavia, Pavia, Italy
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Martínez-Romero MC, Ballesta-Martínez MJ, López-González V, Sánchez-Soler MJ, Serrano-Antón AT, Barreda-Sánchez M, Rodriguez-Peña L, Martínez-Menchon MT, Frías-Iniesta J, Sánchez-Pedreño P, Carbonell-Meseguer P, Glover-López G, Guillén-Navarro E. EDA, EDAR, EDARADD and WNT10A allelic variants in patients with ectodermal derivative impairment in the Spanish population. Orphanet J Rare Dis 2019; 14:281. [PMID: 31796081 PMCID: PMC6892193 DOI: 10.1186/s13023-019-1251-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 11/05/2019] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Ectodermal dysplasias (ED) are a group of genetic conditions affecting the development and/or homeostasis of two or more ectodermal derivatives. An attenuated phenotype is considered a non-syndromic trait when the patient is affected by only one impaired ectodermal structure, such as in non-syndromic tooth agenesis (NSTA) disorder. Hypohidrotic ectodermal dysplasia (HED) is the most highly represented ED. X-linked hypohidrotic ectodermal dysplasia (XLHED) is the most common subtype, with an incidence of 1/50,000-100,000 males, and is associated with the EDA gene (Xq12-q13.1); the dominant and recessive subtypes involve the EDAR (2q13) and EDARADD (1q42.3) genes, respectively. The WNT10A gene (2q35) is associated more frequently with NSTA. Our goal was to determine the mutational spectrum in a cohort of 72 Spanish patients affected by one or more ectodermal derivative impairments referred to as HED (63/72) or NSTA (9 /72) to establish the prevalence of the allelic variants of the four most frequently associated genes. Sanger sequencing of the EDA, EDAR, EDARADD and WNT10A genes and multiplex ligation-dependent probe amplification (MLPA) were performed. RESULTS A total of 61 children and 11 adults, comprising 50 males and 22 females, were included. The average ages were 5.4 and 40.2 years for children and adults, respectively. A molecular basis was identified in 51/72 patients, including 47/63 HED patients, for whom EDA was the most frequently involved gene, and 4/9 NSTA patients, most of whom had variants of WNT10A. Among all the patients, 37/51 had variants of EDA, 8/51 had variants of the WNT10A gene, 4/51 had variants of EDAR and 5/51 had variants of EDARADD. In 42/51 of cases, the variants were inherited according to an X-linked pattern (27/42), with the remaining showing an autosomal dominant (10/42) or autosomal recessive (5/42) pattern. Among the NSTA patients, 3/9 carried pathogenic variants of WNT10A and 1/9 carried EDA variants. A total of 60 variants were detected in 51 patients, 46 of which were different, and out of these 46 variants, 12 were novel. CONCLUSIONS This is the only molecular study conducted to date in the Spanish population affected by ED. The EDA, EDAR, EDARADD and WNT10A genes constitute the molecular basis in 70.8% of patients with a 74.6% yield in HED and 44.4% in NSTA. Twelve novel variants were identified. The WNT10A gene has been confirmed as the second molecular candidate that has been identified and accounts for one-half of non-EDA patients and one-third of NSTA patients. Further studies using next generation sequencing (NGS) will help to identify other contributory genes in the remaining uncharacterized Spanish patients.
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Affiliation(s)
- María Carmen Martínez-Romero
- Centro de Bioquímica y Genética Clínica, Hospital Clínico Universitario Virgen de la Arrixaca, IMIB- Arrixaca. Murcia. CIBERER-ISCIII, Madrid, Spain.,Programa de doctorado en Ciencias de la Salud, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - María Juliana Ballesta-Martínez
- Sección Genética Médica. Servicio de Pediatría. Hospital Clínico Universitario Virgen de la Arrixaca. IMIB- Arrixaca, Universidad de Murcia. CIBERER-ISCIII, Madrid, Spain.,Cátedra de Genética. Facultad de Ciencias de la Salud, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - Vanesa López-González
- Sección Genética Médica. Servicio de Pediatría. Hospital Clínico Universitario Virgen de la Arrixaca. IMIB- Arrixaca, Universidad de Murcia. CIBERER-ISCIII, Madrid, Spain.,Cátedra de Genética. Facultad de Ciencias de la Salud, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - María José Sánchez-Soler
- Sección Genética Médica. Servicio de Pediatría. Hospital Clínico Universitario Virgen de la Arrixaca. IMIB- Arrixaca, Universidad de Murcia. CIBERER-ISCIII, Madrid, Spain.,Cátedra de Genética. Facultad de Ciencias de la Salud, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - Ana Teresa Serrano-Antón
- Sección Genética Médica. Servicio de Pediatría. Hospital Clínico Universitario Virgen de la Arrixaca. IMIB- Arrixaca, Universidad de Murcia. CIBERER-ISCIII, Madrid, Spain
| | - María Barreda-Sánchez
- Cátedra de Genética. Facultad de Ciencias de la Salud, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - Lidya Rodriguez-Peña
- Sección Genética Médica. Servicio de Pediatría. Hospital Clínico Universitario Virgen de la Arrixaca. IMIB- Arrixaca, Universidad de Murcia. CIBERER-ISCIII, Madrid, Spain
| | - María Teresa Martínez-Menchon
- Servicio de Dermatología. Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - José Frías-Iniesta
- Servicio de Dermatología. Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - Paloma Sánchez-Pedreño
- Servicio de Dermatología. Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - Pablo Carbonell-Meseguer
- Centro de Bioquímica y Genética Clínica, Hospital Clínico Universitario Virgen de la Arrixaca, IMIB- Arrixaca. Murcia. CIBERER-ISCIII, Madrid, Spain
| | - Guillermo Glover-López
- Centro de Bioquímica y Genética Clínica, Hospital Clínico Universitario Virgen de la Arrixaca, IMIB- Arrixaca. Murcia. CIBERER-ISCIII, Madrid, Spain
| | - Encarna Guillén-Navarro
- Departamento de Cirugía, Pediatría, Obstetricia y Ginecología. Facultad de Medicina, Universidad de Murcia, Murcia, Spain. .,Sección Genética Médica (Hospital Materno-Infantil. Planta 0), Hospital Clínico Universitario Virgen de la Arrixaca, Ctra. Madrid-Cartagena s/n, El Palmar, CP 30120, Murcia, Spain.
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