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García-Martínez VE, Galiana-Vallés X, Zomeño-Alcalá O, Rodríguez-López R, Llena C, Martínez-Romero MDC, Guillén-Navarro E. Dental Phenotype with Minor Ectodermal Symptoms Suggestive of WNT10A Deficiency. Children (Basel) 2023; 10:children10020356. [PMID: 36832485 PMCID: PMC9955033 DOI: 10.3390/children10020356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023]
Abstract
Ectodermal dysplasias (EDs) represent a heterogeneous group of genetic disorders characterized by the abnormal development of ectodermal-derived tissues. They include the involvement of the hair, nails, skin, sweat glands, and teeth. Pathogenic variants in EDA1 (Xq12-13.1; OMIM*300451), EDAR (2q11-q13; OMIM*604095), EDARADD (1q42-q43, OMIM*606603), and WNT10A (2q35; OMIM*606268) genes are responsible for most EDs. Bi-allelic pathogenic variants of WNT10A have been associated with autosomal recessive forms of ED, as well as non-syndromic tooth agenesis (NSTA). The potential phenotypic impact of associated modifier mutations in other ectodysplasin pathway genes has also been pointed out. We present on an 11-year-old Chinese boy with oligodontia, with conical-shaped teeth as the main phenotype, and other very mild ED signs. The genetic study identified the pathogenic variants WNT10A (NM_025216.3): c.310C > T; p. (Arg104Cys) and c.742C > T; p. (Arg248Ter) in compound heterozygosis, confirmed by parental segregation. In addition, the patient had the polymorphism EDAR (NM_022336.4): c.1109T > C, p. (Val370Ala) in homozygosis, named EDAR370. A prominent dental phenotype with minor ectodermal symptoms is very suggestive of WNT10A mutations. In this case, the EDAR370A allele might also attenuate the severity of other ED signs.
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Affiliation(s)
| | - Ximo Galiana-Vallés
- Laboratory of Molecular Genetics, Clinical Analysis Service, Consortium General University Hospital, 46014 Valencia, Spain
| | - Otilia Zomeño-Alcalá
- Laboratory of Molecular Genetics, Clinical Analysis Service, Consortium General University Hospital, 46014 Valencia, Spain
| | - Raquel Rodríguez-López
- Laboratory of Molecular Genetics, Clinical Analysis Service, Consortium General University Hospital, 46014 Valencia, Spain
| | - Carmen Llena
- Primary Care Dentistry, Departament General University Hospital, 46070 Valencia, Spain
- Departament of Stomatology, Universitat de Valencia, 46010 Valencia, Spain
- Correspondence: ; Tel.: +34-609-92-13-77
| | - María del Carmen Martínez-Romero
- Molecular Genetics Section, Biochemistry and Clinical Genetics Center, University Clinical Hospital Virgen de la Arrixaca, Health Sciences PhD Program-UCAM, 30109 Murcia, Spain
- IMIB-Pascual Parrilla, 30007 Murcia, Spain
- CIBERER-ISCIII, 28029 Madrid, Spain
- Faculty of Medicine and Health Sciences, UCAM Catholic University of Murcia, 30109 Murcia, Spain
| | - Encarna Guillén-Navarro
- IMIB-Pascual Parrilla, 30007 Murcia, Spain
- CIBERER-ISCIII, 28029 Madrid, Spain
- Medical Genetics Section, Pediatrics Department, University Clinical Hospital Virgen de la Arrixaca, University of Murcia (UMU), 30120 Murcia, Spain
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