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Semjid D, Ahn H, Bayarmagnai S, Gantumur M, Kim S, Lee JH. Identification of novel candidate genes associated with non-syndromic tooth agenesis in Mongolian families. Clin Oral Investig 2023; 28:56. [PMID: 38157055 PMCID: PMC10756872 DOI: 10.1007/s00784-023-05415-2] [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: 04/27/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVES This study aimed to identify genetic variants associated with non-syndromic tooth agenesis (TA) in nine families from Mongolia using whole-exome sequencing (WES) and bioinformatics analysis. MATERIAL AND METHODS The study enrolled 41 participants, including three inherited and six non-inherited families. WES analysis was performed on 14 saliva samples from individuals with non-syndromic TA. The potential candidate genes were identified through variant filtering and segregation analysis. The filtered variants were then analyzed in silico mutation impact analysis. RESULTS WES analysis identified 21 variants associated with TA, and 5 of these variants met all filtering criteria. These variants were located in the exome region of MAST4, ITGA6, PITX2, CACNA1S, and CDON genes. The variant in PITX2 was found in eight participants from inherited and non-inherited families, while the MAST4 variant was identified in 6 participants from inherited families. CONCLUSIONS The study identified various genetic variant candidates associated with TA in different family groups, with PITX2 being the most commonly identified. Our findings suggest that MAST4 may also be a novel candidate gene for TA due to its association with the Wnt signaling pathway. Additionally, we found that five candidate genes related to focal adhesion and calcium channel complex were significant and essential in tooth development. CLINICAL RELEVANCE Identifying new pathogenic genes associated with TA can improve our understanding of the molecular mechanisms underlying the disease, leading to better diagnosis, prevention, and treatment. Early detection of TA based on biomarkers can improve dental management and facilitate orthodontic and prosthetic treatment.
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Affiliation(s)
- Dejidnorov Semjid
- Department of Prosthodontics, College of Dentistry at Yonsei University, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 120-752, Republic of Korea
| | - Hyunsoo Ahn
- Department of Life Sciences, Pohang University of Science and Technology, 80 Jigok-Ro, Nam-Gu, Pohang, 790-784, Republic of Korea
| | - Sapaar Bayarmagnai
- Department of Prosthodontics, School of Dentistry, Mongolian National University of Medical Sciences, Chingeltei District, Nuuriin 2-21, Ulaanbaatar, Mongolia
| | - Munkhjargal Gantumur
- Department of Prosthodontics, School of Dentistry, Mongolian National University of Medical Sciences, Chingeltei District, Nuuriin 2-21, Ulaanbaatar, Mongolia
| | - Sanguk Kim
- Department of Life Sciences, Pohang University of Science and Technology, 80 Jigok-Ro, Nam-Gu, Pohang, 790-784, Republic of Korea.
| | - Jae Hoon Lee
- Department of Prosthodontics, College of Dentistry at Yonsei University, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 120-752, Republic of Korea.
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4
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Pan Y, Lu T, Peng L, Zeng Q, Huang X, Yao X, Wu B, Xiong F. Functional Analysis of Ectodysplasin-A Mutations in X-Linked Nonsyndromic Hypodontia and Possible Involvement of X-Chromosome Inactivation. Stem Cells Int 2021; 2021:7653013. [PMID: 34545288 PMCID: PMC8449729 DOI: 10.1155/2021/7653013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/10/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Mutations of the Ectodysplasin-A (EDA) gene are generally associated with syndrome hypohidrotic ectodermal dysplasia or nonsyndromic tooth agenesis. The influence of EDA mutations on dentinogenesis and odontoblast differentiation has not been reported. The aim of this study was to identify genetic clues for the causes of familial nonsyndromic oligodontia and explore the underlying mechanisms involved, while focusing on the role of human dental pulp stem cells (hDPSCs). MATERIALS AND METHODS Candidate gene sequences were obtained by PCR amplification and Sanger sequencing. Functional analysis was conducted, and the pathogenesis associated with EDA mutations in hDPSCs was investigated to explore the impact of the identified mutation on the phenotype. Capillary electrophoresis (CE) was used to detect X-chromosome inactivation (XCI) in the blood of female carriers. RESULTS In this study, we identified an EDA mutation in a Chinese family: the missense mutation c.1013C>T (Thr338Met). Transfection of hDPSCs with a mutant EDA lentivirus decreased the expression of EDA and dentin sialophosphoprotein (DSPP) compared with transfection of control EDA lentivirus. Mechanistically, mutant EDA inhibited the activation of the NF-κB pathway. The CE results showed that symptomatic female carriers had a skewed XCI with a preferential inactivation of the X chromosome that carried the normal allele. CONCLUSIONS In summary, we demonstrated that EDA mutations result in nonsyndromic tooth agenesis in heterozygous females and that, mechanistically, EDA regulates odontogenesis through the NF-κB signalling pathway in hDPSCs. Due to the large heterogeneity of tooth agenesis, this study provided a genetic basis for individuals who exhibit similar clinical phenotypes.
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Affiliation(s)
- Yuhua Pan
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ting Lu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ling Peng
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qi Zeng
- Department of Pediatric Dentistry, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiangyu Huang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinchen Yao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, 143 Dongzong Road, Pingshan District, Shenzhen 518118, China
| | - Fu Xiong
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou, Guangdong, China
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Experimental Education/Administration Center, School of Basic Medical Science, Southern Medical University, Guangzhou 510515, China
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6
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de La Dure-Molla M, Fournier BP, Manzanares MC, Acevedo AC, Hennekam RC, Friedlander L, Boy-Lefèvre ML, Kerner S, Toupenay S, Garrec P, Vi-Fane B, Felizardo R, Berteretche MV, Jordan L, Ferré F, Clauss F, Jung S, de Chalendar M, Troester S, Kawczynski M, Chaloyard J, Manière MC, Berdal A, Bloch-Zupan A. Elements of morphology: Standard terminology for the teeth and classifying genetic dental disorders. Am J Med Genet A 2019; 179:1913-1981. [PMID: 31468724 DOI: 10.1002/ajmg.a.61316] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/24/2019] [Accepted: 07/17/2019] [Indexed: 12/14/2022]
Abstract
Dental anomalies occur frequently in a number of genetic disorders and act as major signs in diagnosing these disorders. We present definitions of the most common dental signs and propose a classification usable as a diagnostic tool by dentists, clinical geneticists, and other health care providers. The definitions are part of the series Elements of Morphology and have been established after careful discussions within an international group of experienced dentists and geneticists. The classification system was elaborated in the French collaborative network "TÊTECOU" and the affiliated O-Rares reference/competence centers. The classification includes isolated and syndromic disorders with oral and dental anomalies, to which causative genes and main extraoral signs and symptoms are added. A systematic literature analysis yielded 408 entities of which a causal gene has been identified in 79%. We classified dental disorders in eight groups: dental agenesis, supernumerary teeth, dental size and/or shape, enamel, dentin, dental eruption, periodontal and gingival, and tumor-like anomalies. We aim the classification to act as a shared reference for clinical and epidemiological studies. We welcome critical evaluations of the definitions and classification and will regularly update the classification for newly recognized conditions.
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Affiliation(s)
- Muriel de La Dure-Molla
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,INSERM UMR_S1163 Bases moléculaires et physiopathologiques des ostéochondrodysplasies, Institut Imagine, Necker, Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Benjamin Philippe Fournier
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Laboratoire de Physiopathologie Orale Moléculaire INSERM UMR S1138, Centre de Recherche des Cordeliers, Universités Paris-Diderot et Paris-Descartes, Paris, France
| | - Maria Cristina Manzanares
- Unitat d'Anatomia i Embriologia Humana, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Ana Carolina Acevedo
- ral Care Center for Inherited Diseases, University Hospital of Brasilia, University of Brasilia, Brasilia, Brazil.,Department of Dentistry, Health Sciences School, University of Brasilia, Brasilia, Brazil
| | - Raoul C Hennekam
- Department of Pediatrics, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Lisa Friedlander
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,INSERM UMR_S1123, ECEVE, Epidémiologie clinique, évaluation économique des populations vulnérables, Paris, France
| | - Marie-Laure Boy-Lefèvre
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Stephane Kerner
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Steve Toupenay
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Pascal Garrec
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Brigite Vi-Fane
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Rufino Felizardo
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Marie-Violaine Berteretche
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Laurence Jordan
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - François Ferré
- Laboratoire de Physiopathologie Orale Moléculaire INSERM UMR S1138, Centre de Recherche des Cordeliers, Universités Paris-Diderot et Paris-Descartes, Paris, France
| | - François Clauss
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sophie Jung
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Myriam de Chalendar
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | - Sebastien Troester
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marzena Kawczynski
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Jessica Chaloyard
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France
| | | | - Marie Cécile Manière
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Ariane Berdal
- Centre de Référence des Maladies rares Orales et Dentaires, Hôpital Rothschild, AP-HP, Faculté Odontologie Garancière, Université de Paris, France.,Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Laboratoire de Physiopathologie Orale Moléculaire INSERM UMR S1138, Centre de Recherche des Cordeliers, Universités Paris-Diderot et Paris-Descartes, Paris, France
| | - Agnès Bloch-Zupan
- Filière de santé Maladies Rares TETECOU: Malformations rares de la tête, du cou et des dents, Hôpital Necker-Enfants Malades, Paris, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Institut de Génétique et de Biologie Moléculaire and Cellulaire, Centre Européen de Recherche en Biologie et en Médecine, Université de Strasbourg, CNRS UMR7104, INSERM U1258, Illkirch, France.,Institut d'Etudes Avancées, Université de Strasbourg, USIAS, Strasbourg, France
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9
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Salvi A, Giacopuzzi E, Bardellini E, Amadori F, Ferrari L, De Petro G, Borsani G, Majorana A. Mutation analysis by direct and whole exome sequencing in familial and sporadic tooth agenesis. Int J Mol Med 2016; 38:1338-1348. [PMID: 27665865 PMCID: PMC5065298 DOI: 10.3892/ijmm.2016.2742] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 07/25/2016] [Indexed: 12/30/2022] Open
Abstract
Dental agenesis is one of the most common congenital craniofacial abnormalities. Dental agenesis can be classified, relative to the number of missing teeth (excluding third molars), as hypodontia (1 to 5 missing teeth), oligodontia (6 or more missing teeth), or anodontia (lack of all teeth). Tooth agenesis may occur either in association with genetic syndromes, based on the presence of other inherited abnormalities, or as a non-syndromic trait, with both familiar and sporadic cases reported. In this study, we enrolled 16 individuals affected by tooth agenesis, prevalently hypodontia, and we carried out direct Sanger sequencing of paired box 9 (PAX9) and Msh homeobox 1 (MSX1) genes in 9 subjects. Since no mutations were identified, we performed whole exome sequencing (WES) in the members of 5 families to identify causative gene mutations either novel or previously described. Three individuals carried a known homozygous disease mutation in the Wnt family member 10A (WNT10A) gene (rs121908120). Interestingly, two of these individuals were siblings and also carried a heterozygous functional variant in EDAR-associated death domain (EDARADD) (rs114632254), another disease causing gene, generating a combination of genetic variants never described until now. The analysis of exome sequencing data in the members of other 3 families highlighted new candidate genes potentially involved in tooth agenesis and considered suitable for future studies. Overall, our study confirmed the major role played by WNT10A in tooth agenesis and the genetic heterogeneity of this disease. Moreover, as more genes are shown to be involved in tooth agenesis, WES analysis may be an effective approach to search for genetic variants in familiar or sporadic tooth agenesis, at least in more severe clinical manifestations.
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Affiliation(s)
- Alessandro Salvi
- Department of Molecular and Translational Medicine, Division of Biology and Genetics, University of Brescia, I-25123 Brescia, Italy
| | - Edoardo Giacopuzzi
- Department of Molecular and Translational Medicine, Division of Biology and Genetics, University of Brescia, I-25123 Brescia, Italy
| | - Elena Bardellini
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, Dental Clinic, University of Brescia, I-25123 Brescia, Italy
| | - Francesca Amadori
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, Dental Clinic, University of Brescia, I-25123 Brescia, Italy
| | - Lia Ferrari
- Department of Molecular and Translational Medicine, Division of Biology and Genetics, University of Brescia, I-25123 Brescia, Italy
| | - Giuseppina De Petro
- Department of Molecular and Translational Medicine, Division of Biology and Genetics, University of Brescia, I-25123 Brescia, Italy
| | - Giuseppe Borsani
- Department of Molecular and Translational Medicine, Division of Biology and Genetics, University of Brescia, I-25123 Brescia, Italy
| | - Alessandra Majorana
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, Dental Clinic, University of Brescia, I-25123 Brescia, Italy
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