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Faria-Teixeira MC, Tordera C, Salvado E Silva F, Vaz-Carneiro A, Iglesias-Linares A. Craniofacial syndromes and class III phenotype: common genotype fingerprints? A scoping review and meta-analysis. Pediatr Res 2024; 95:1455-1475. [PMID: 38347173 PMCID: PMC11126392 DOI: 10.1038/s41390-023-02907-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/03/2023] [Accepted: 10/12/2023] [Indexed: 02/18/2024]
Abstract
Skeletal Class III (SCIII) is among the most challenging craniofacial dysmorphologies to treat. There is, however, a knowledge gap regarding which syndromes share this clinical phenotype. The aims of this study were to: (i) identify the syndromes affected by the SCIII phenotype; (ii) clarify the involvement of maxillary and/or mandibular structures; (iii) explore shared genetic/molecular mechanisms. A two-step strategy was designed: [Step#1] OMIM, MHDD, HPO, GeneReviews and MedGen databases were explored; [Step#2]: Syndromic conditions indexed in [Step#1] were explored in Medline, Pubmed, Scopus, Cochrane Library, WOS and OpenGrey. Eligibility criteria were defined. Individual studies were assessed for risk of bias using the New Ottawa Scale. For quantitative analysis, a meta-analysis was conducted. This scoping review is a hypothesis-generating research. Twenty-two studies met the eligibility criteria. Eight syndromes affected by the SCIII were targeted: Apert syndrome, Crouzon syndrome, achondroplasia, X-linked hypohidrotic ectodermal dysplasia (XLED), tricho-dento-osseous syndrome, cleidocranial dysplasia, Klinefelter and Down syndromes. Despite heterogeneity between studies [p < 0.05], overall effects showed that midface components were affected in Apert and Down Syndromes, lower face in Klinefelter Syndrome and midface and lower face components in XLED. Our review provides new evidence on the craniofacial characteristics of genetically confirmed syndromes exhibiting the SCIII phenotype. Four major regulatory pathways might have a modulatory effect on this phenotype. IMPACT: What does this review add to the existing literature? To date, there is no literature exploring which particular syndromes exhibit mandibular prognathism as a common trait. Through this research, it was possibly to identify the particular syndromes that share the skeletal Class III phenotype (mandibular prognathism) as a common trait highlighting the common genetic and molecular pathways between different syndromes acknowledging their impact in craniofacial development.
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Affiliation(s)
- Maria Cristina Faria-Teixeira
- Complutense University of Madrid, School of Dentistry, 28040, Madrid, Spain
- University of Lisbon, School of Medicine, University Clinic of Stomatology, 1200, Lisbon, Portugal
| | - Cristina Tordera
- Complutense University of Madrid, School of Dentistry, 28040, Madrid, Spain
| | | | | | - Alejandro Iglesias-Linares
- Complutense University of Madrid, School of Dentistry, 28040, Madrid, Spain.
- BIOCRAN (Craniofacial Biology) Research Group, Complutense University, 28040, Madrid, Spain.
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2
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Xing Q, Zhou Q, Li H, Wang Z, Li S, Wu J, Zhu H, Liang D, Li Z, Wu L. Identification of six novel mutations in EDA from 20 hypohidrotic ectodermal dysplasia families. Oral Dis 2023. [PMID: 38129747 DOI: 10.1111/odi.14838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/28/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE To investigate the genetic causes of 22 patients with clinically high suspicion of X-linked hypohidrotic ectodermal dysplasia from 20 unrelated Chinese families, expand the spectrum of ectodysplasin-A mutations, and provide more evidence for variants of uncertain significance. SUBJECTS AND METHODS Whole-exome sequencing was performed and potentially pathogenic variants were verified by Sanger sequencing. Western blotting, real-time PCR and immunofluorescence analyses were performed to investigate the preliminary functions of the candidate variants. RESULTS Nineteen ectodysplasin-A variants were identified, six of which were not previously reported. Among these variants, we identified a patient who carried two mutations in ectodysplasin-A and exhibited more severe phenotypes. Additionally, mutant protein expression levels decreased, whereas mRNA transcription levels increased. Cellular sublocalisation of the variants located in the tumour necrosis factor homologous domain showed that the proteins accumulated in the nucleus, whereas wild-type proteins remained in the cell membrane. A rare indel variant and two classical splicing variants that lead to exon 7 skipping were detected. CONCLUSIONS This study provides definitive diagnoses for 20 families with suspected X-linked hypohidrotic ectodermal dysplasia and additional information on clinical heterogeneity and genotype-phenotype relationships.
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Affiliation(s)
- Qin Xing
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Qimin Zhou
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Hongyan Li
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Zhongjie Wang
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Shun Li
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Jiayu Wu
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Huimin Zhu
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Desheng Liang
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
- Laboratory of Molecular Genetics, Hunan Jiahui Genetics Hospital, Changsha, Hunan, China
| | - Zhuo Li
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
| | - Lingqian Wu
- Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics & Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Central South University, Changsha, China
- Laboratory of Molecular Genetics, Hunan Jiahui Genetics Hospital, Changsha, Hunan, China
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3
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Kovalskaia VA, Cherevatova TB, Polyakov AV, Ryzhkova OP. Molecular basis and genetics of hypohidrotic ectodermal dysplasias. Vavilovskii Zhurnal Genet Selektsii 2023; 27:676-683. [PMID: 38023809 PMCID: PMC10643535 DOI: 10.18699/vjgb-23-78] [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: 08/19/2022] [Revised: 02/06/2023] [Accepted: 03/24/2023] [Indexed: 12/01/2023] Open
Abstract
Ectodermal dysplasia (ED) is a heterogeneous group of hereditary diseases of the skin and its appendages, which are characterized by impaired development and/or homeostasis of two or more ectoderm derivatives, including: hair, teeth, nails, sweat glands and their modifications (mammary glands, for instance). The overall prevalence of ectodermal dysplasia remains precisely unknown not only in Russia, but also in the world, nor is known the contribution of individual genes to its structure. This complicates the DNA diagnosis establishment of this disease due to the lack of an accurate diagnostic algorithm and a universal cost-effective method of analysis. To date, the most highly-researched genes involved in the development of anhydrous or hypohidrotic forms of ED are EDA, EDAR, EDARADD and WNT10A. The ectodysplasin A (EDA) gene is the cause of the most common X-linked form of ED, a gene from the Wnt family (WNT10A) is responsible for the autosomal recessive form of the disease, and two other genes (EDAR and EDARADD) can cause both autosomal recessive and autosomal dominant forms. This review provides the characteristics of the genes involved in ED, their mutation spectra, the level of their expression in human tissues, as well as the interrelation of the aforementioned genes. The domain structures of the corresponding proteins are considered, as well as the molecular genetic pathways in which they are involved. Animal models for studying this disorder are also taken into consideration. Due to the cross-species genes conservation, their mutations cause the disruption of the development of ectoderm derivatives not only in humans, but also in mice, cows, dogs, and even fish. It can be exploited for a better understanding of the etiopathogenesis of ectodermal dysplasias. Moreover, this article brings up the possibility of recurrent mutations in the EDA and WNT10A genes. The review also presents data on promising approaches for intrauterine ED treatment.
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Affiliation(s)
| | | | - A V Polyakov
- Research Centre for Medical Genetics, Moscow, Russia
| | - O P Ryzhkova
- Research Centre for Medical Genetics, Moscow, Russia
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Callea M, Bellacchio E, Cammarata Scalisi F, El Feghaly J, El-Ghandour RK, Avendaño A, Yavuz Y, Diociaiuti A, Digilio MC, DI Stazio M, Novelli A, Oranges T, Filippeschi C, Pisaneschi E, Jilani H, Gigola F, Willoughby CE, Morabito A. Next generation sequencing panel target genes: possible diagnostic tool for ectodermal dysplasia related diseases. Ital J Dermatol Venerol 2023; 158:32-38. [PMID: 36939501 DOI: 10.23736/s2784-8671.23.07540-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
BACKGROUND Ectodermal dysplasias (EDs) are a large and complex group of disorders affecting the ectoderm-derived organs; the clinical and genetic heterogeneity of these conditions renders an accurate diagnosis more challenging. The aim of this study is to demonstrate the clinical utility of a targeted resequencing panel through enhancing the molecular and clinical diagnosis of EDs. Given the recent developments in gene and protein-based therapies for X-linked hypohidrotic ectodermal dysplasia, there is a re-emerging interest in identifying the genetic basis of EDs and the respective phenotypic presentations, in an aim to facilitate potential treatments for affected families. METHODS We assessed seventeen individuals, from three unrelated families, who presented with diverse phenotypes suggestive of ED. An extensive multidisciplinary clinical evaluation was performed followed by a targeted exome resequencing panel (including genes that are known to cause EDs). MiSeqTM data software was used, variants with Qscore >30 were accepted. RESULTS Three different previously reported hemizygous EDA mutations were found in the families. However, a complete genotype-phenotype correlation could not be established, neither in our patients nor in the previously reported patients. CONCLUSIONS Targeted exome resequencing can provide a rapid and accurate diagnosis of EDs, while further contributing to the existing ED genetic data. Moreover, the identification of the disease-causing mutation in an affected family is crucial for proper genetic counseling and the establishment of a genotype-phenotype correlation which will subsequently provide the affected individuals with a more suitable treatment plan.
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Affiliation(s)
- Michele Callea
- Unit of Pediatric Dentistry and Special Dental Care, Meyer Children's Hospital IRCCS, Florence, Italy
| | | | | | - Jinia El Feghaly
- Department of Pediatric Dermatology, University of Rochester, Rochester, MN, USA
| | - Rabab K El-Ghandour
- Department of Pediatric Dentistry, Faculty of Dentistry, Pharos University, Alexandria, Egypt
| | - Andrea Avendaño
- Unit of Genetic Medicine, Department of Childcare Pediatrics, University of Los Andes, Mérida, Venezuela
| | - Yasemine Yavuz
- Department of Restorative Dentistry, Faculty of Dentistry, Harran University, Sanliurfa, Türkiye
| | - Andrea Diociaiuti
- Division of Dermatology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Maria C Digilio
- Division of Genetics and Rare Diseases Research, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Antonio Novelli
- Division of Genetics and Rare Diseases Research, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | | | - Elisa Pisaneschi
- Division of Genetics and Rare Diseases Research, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Houweyda Jilani
- Department of Genetics, Mongi Slim Hospital, Marsa, Tunisia
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Francesca Gigola
- Department of Neurofarba, University of Florence, Florence, Italy -
- Department of Pediatric Surgery, Meyer Children's Hospital IRCCS, Florence, Italy
| | | | - Antonino Morabito
- Department of Neurofarba, University of Florence, Florence, Italy
- Department of Pediatric Surgery, Meyer Children's Hospital IRCCS, Florence, Italy
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5
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Zheng J, Liu H, Yu M, Lin B, Sun K, Liu H, Feng H, Liu Y, Han D. BMPR2 Variants Underlie Nonsyndromic Oligodontia. Int J Mol Sci 2023; 24:ijms24021648. [PMID: 36675162 PMCID: PMC9860601 DOI: 10.3390/ijms24021648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/18/2023] Open
Abstract
Oligodontia manifests as a congenital reduction in the number of permanent teeth. Despite the major efforts that have been made, the genetic etiology of oligodontia remains largely unknown. Bone morphogenetic protein receptor type 2 (BMPR2) variants have been associated with pulmonary arterial hypertension (PAH). However, the genetic significance of BMPR2 in oligodontia has not been previously reported. In the present study, we identified a novel heterozygous variant (c.814C > T; p.Arg272Cys) of BMPR2 in a family with nonsyndromic oligodontia by performing whole-exome sequencing. In addition, we identified two additional heterozygous variants (c.1042G > A; p.Val348Ile and c.1429A > G; p.Lys477Glu) among a cohort of 130 unrelated individuals with nonsyndromic oligodontia by performing Sanger sequencing. Functional analysis demonstrated that the activities of phospho-SMAD1/5/8 were significantly inhibited in BMPR2-knockout 293T cells transfected with variant-expressing plasmids, and were significantly lower in BMPR2 heterozygosity simulation groups than in the wild-type group, indicating that haploinsufficiency may represent the genetic mechanism. RNAscope in situ hybridization revealed that BMPR2 transcripts were highly expressed in the dental papilla and adjacent inner enamel epithelium in mice tooth germs, suggesting that BMPR2 may play important roles in tooth development. Our findings broaden the genetic spectrum of oligodontia and provide clinical and genetic evidence supporting the importance of BMPR2 in nonsyndromic oligodontia.
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Affiliation(s)
- Jinglei Zheng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Haochen Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Miao Yu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Bichen Lin
- Frist Clinical Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Kai Sun
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Hangbo Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Hailan Feng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Yang Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
- Correspondence: (Y.L.); (D.H.)
| | - Dong Han
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
- Correspondence: (Y.L.); (D.H.)
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6
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Inazawa-Terada M, Namiki T, Omigawa C, Fujimoto T, Munetsugu T, Ugajin T, Shimomura Y, Ohshima Y, Yoshida K, Niizeki H, Hayashi R, Nakano H, Yokozeki H. An epidemiological survey of anhidrotic/hypohidrotic ectodermal dysplasia in Japan: High prevalence of allergic diseases. J Dermatol 2021; 49:422-431. [PMID: 34897795 DOI: 10.1111/1346-8138.16278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/04/2021] [Accepted: 11/19/2021] [Indexed: 11/29/2022]
Abstract
Anhidrotic/hypohidrotic ectodermal dysplasia (A/HED) is a congenital disorder characterized by anhidrosis/hypohidrosis and inadequate hair and dental dysplasia. Large-scale case studies of patients with A/HED have already been conducted overseas, while there has been no large-scale study, but only a few case reports in Japan. Furthermore, an epidemiological study of this disease has not been conducted in Japan to date. The purpose of this study was to investigate the clinical characteristics of A/HED patients, the status of genetic aberrations and complications of A/HED in Japan. Initially, we conducted a physician-initiated questionnaire survey of A/HED patients who visited medical institutions across Japan to investigate their backgrounds, clinical symptoms, genotypes, diagnostic methods and complications of A/HED. We also investigated the presence or absence of various allergic diseases (atopic dermatitis-like skin manifestations, bronchial asthma and food allergies). Questionnaires were also obtained from 26 patients with ectodermal dysplasia (ED) who visited four medical institutions. We compared the incidence of allergic diseases in healthy controls in a similar study to that of patients. Twenty-four of those patients were considered to have A/HED, of which 18 had a confirmed genetic diagnosis and were genotyped. All patients had anhidrosis or hypohidrosis, hair and dental dysplasia, and unique facial appearance; 23 patients had several cutaneous manifestations and seven patients had periorbital pigmentation. In addition, there was a significantly higher incidence of atopic dermatitis-like cutaneous manifestations, bronchial asthma and food allergies in the A/HED patients than in healthy controls. We report the results from a questionnaire survey of 24 patients with A/HED. This is the first report of a large number of A/HED patients in Japan. This study clarifies the status of clinical diagnosis and genetic testing of A/HED patients in Japan, as well as the characteristics of their skin symptoms and allergic complications.
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Affiliation(s)
- Minako Inazawa-Terada
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takeshi Namiki
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chika Omigawa
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomoko Fujimoto
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takichi Munetsugu
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tsukasa Ugajin
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yutaka Shimomura
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yuichiro Ohshima
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Kazue Yoshida
- Division of Dermatology, National Center for Child Health and Development, Tokyo, Japan
| | - Hironori Niizeki
- Division of Dermatology, National Center for Child Health and Development, Tokyo, Japan
| | - Ryota Hayashi
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hajime Nakano
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiroo Yokozeki
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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7
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Chaudhary AK, Gholse A, Nagarajaram HA, Dalal AB, Gupta N, Dutta AK, Danda S, Gupta R, Sankar HV, Bhavani GS, Girisha KM, Phadke SR, Ranganath P, Bashyam MD. Ectodysplasin pathogenic variants affecting the furin-cleavage site and unusual clinical features define X-linked hypohidrotic ectodermal dysplasia in India. Am J Med Genet A 2021; 188:788-805. [PMID: 34863015 DOI: 10.1002/ajmg.a.62579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/20/2021] [Accepted: 11/02/2021] [Indexed: 11/09/2022]
Abstract
Hypohidrotic ectodermal dysplasia (HED) is a rare genetic disorder caused by mutational inactivation of a developmental pathway responsible for generation of tissues of ectodermal origin. The X-linked form accounts for the majority of HED cases and is caused by Ectodysplasin (EDA) pathogenic variants. We performed a combined analysis of 29 X-linked hypohidrotic ectodermal dysplasia (XLHED) families (including 12 from our previous studies). In addition to the classical triad of symptoms including loss (or reduction) of ectodermal structures, such as hair, teeth, and sweat glands, we detected additional HED-related clinical features including facial dysmorphism and hyperpigmentation in several patients. Interestingly, global developmental delay was identified as an unusual clinical symptom in many patients. More importantly, we identified 22 causal pathogenic variants that included 15 missense, four small in-dels, and one nonsense, splice site, and large deletion each. Interestingly, we detected 12 unique (India-specific) pathogenic variants. Of the 29 XLHED families analyzed, 11 (38%) harbored pathogenic variant localized to the furin cleavage site. A comparison with HGMD revealed significant differences in the frequency of missense pathogenic variants; involvement of specific exons and/or protein domains and transition/transversion ratios. A significantly higher proportion of missense pathogenic variants (33%) localized to the EDA furin cleavage when compared to HGMD (7%), of which p.R155C, p.R156C, and p.R156H were detected in three families each. Therefore, the first comprehensive analysis of XLHED from India has revealed several unique features including unusual clinical symptoms and high frequency of furin cleavage site pathogenic variants.
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Affiliation(s)
- Ajay Kumar Chaudhary
- Laboratory of Molecular Oncology, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
| | - Aishwarya Gholse
- Laboratory of Computational Biology, Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Hampapathalu Adimurthy Nagarajaram
- Laboratory of Computational Biology, Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Ashwin Bhikaji Dalal
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
| | - Neerja Gupta
- Division of Genetics, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Atanu Kumar Dutta
- Department of Clinical Genetics, Christian Medical College and Hospital, Vellore, India
| | - Sumita Danda
- Department of Clinical Genetics, Christian Medical College and Hospital, Vellore, India
| | - Rekha Gupta
- Department of Medical Genetics, Mahatma Gandhi Medical College and Hospital, Jaipur, India
| | - Hariharan V Sankar
- Department of Pediatrics, SAT Hospital, Medical College, Trivandrum, India
| | - Gandham SriLakshmi Bhavani
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Katta M Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Shubha Rao Phadke
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Prajnya Ranganath
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India.,Department of Medical Genetics, Nizam's Institute of Medical Sciences, Hyderabad, India
| | - Murali Dharan Bashyam
- Laboratory of Molecular Oncology, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
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8
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Moura E, Daltro SRT, Sás DM, Engracia Filho JR, Farias MR, Pimpão CT. Genetic analysis of a possible case of canine X-linked ectodermal dysplasia. J Small Anim Pract 2021; 62:1127-1130. [PMID: 34076266 DOI: 10.1111/jsap.13385] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/07/2021] [Accepted: 05/16/2021] [Indexed: 11/30/2022]
Abstract
In the present report, we describe targeted next-generation sequencing of the EDA gene of a male poodle with a clinical and histopathological diagnosis of X-linked hypohidrotic ectodermal dysplasia. The result was compared with the reference sequence and with the result of the sequencing of a normal dog's EDA gene. No point variant, small deletion or insertion were found in the exons and splice sites, but a transition and a transversion were found in the intron 6' and 3' UTR, respectively. The cause of the dysplasia of the affected dog in this study is neither a point variant nor a small deletion or insertion in the exons and splice sites of the EDA gene. Therefore, patients with phenotype of XLHED may have other types of variants in the EDA gene or variants in other genes of the EDA signalling pathway.
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Affiliation(s)
- E Moura
- Service of Medical Genetics, Course of Veterinary Medicine, School of Life Sciences, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba, Paraná, Brazil
| | - S R T Daltro
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil
| | - D M Sás
- Genotyping - Diagnósticos Genéticos, Botucatu, São Paulo, Brazil
| | - J R Engracia Filho
- Graduate Program in Animal Science, School of Life Sciences, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba, Paraná, Brazil
| | - M R Farias
- Graduate Program in Animal Science, School of Life Sciences, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba, Paraná, Brazil
| | - C T Pimpão
- Graduate Program in Animal Science, School of Life Sciences, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba, Paraná, Brazil
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9
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Abstract
Genodermatoses are inherited disorders presenting with cutaneous manifestations with or without the involvement of other systems. The majority of these disorders, particularly in cases that present with a cutaneous patterning, may be explained in the context of genetic mosaicism. Despite the barriers to the genetic analysis of mosaic disorders, next-generation sequencing has led to a substantial progress in understanding their pathogenesis, which has significant implications for the clinical management and genetic counseling. Advances in paired and deep sequencing technologies in particular have made the study of mosaic disorders more feasible. In this review, we provide an overview of genetic mosaicism as well as mosaic cutaneous disorders and the techniques required to study them.
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Affiliation(s)
- Shayan Cheraghlou
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut, USA; Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA; Department of Genetics, Yale School of Medicine, New Haven, Connecticut, USA
| | - Young Lim
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut, USA; Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA; Department of Genetics, Yale School of Medicine, New Haven, Connecticut, USA
| | - Keith A Choate
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut, USA; Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA; Department of Genetics, Yale School of Medicine, New Haven, Connecticut, USA.
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10
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Wang X, Zhang Z, Yuan S, Ren J, Qu H, Zhang G, Chen W, Zheng S, Meng L, Bai J, Du Q, Yang D, Shen W. A novel EDA1 missense mutation in X-linked hypohidrotic ectodermal dysplasia. Medicine (Baltimore) 2020; 99:e19244. [PMID: 32176048 PMCID: PMC7220389 DOI: 10.1097/md.0000000000019244] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
A mutation in the epithelial morphogen gene ectodysplasin-A1 (EDA1) is responsible for the disorder X-linked hypohidrotic ectodermal dysplasia (XLHED), the most common form of ectodermal dysplasia. XLHED is characterized by impaired development of hair, eccrine sweat glands, and teeth. This study aimed to identify potentially pathogenic mutations in four Chinese XLHED families.Genomic DNA was extracted from the peripheral blood and sequenced. Sanger sequencing was used to carry out mutational analysis of the EDA1 gene, and the three-dimensional structure of the novel mutant residues in the EDA trimer was determined. Transcriptional activity of NF-κB was tested by Dual luciferin assay.We identified a novel EDA1 mutation (c.1046C>T) and detected 3 other previously-reported mutations (c.146T>A; c.457C>T; c.467G>A). Our findings demonstrated that novel mutation c.1046C>T (p.A349 V) resulted in XLHED. The novel mutation could cause volume repulsion in the protein due to enlargement of the amino acid side chain. Dual luciferase assay revealed that transcriptional NF-κB activation induced by XLHED EDA1 protein was significantly reduced compared with wild-type EDA1.These results extend the spectrum of EDA1 mutations in XLHED patients and suggest a functional role of the novel mutation in XLHED.
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Affiliation(s)
- Xu Wang
- Department of Prosthodontics, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang
| | - Zhiyu Zhang
- Department of Prosthodontics, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang
| | - Shuo Yuan
- Department of Prosthodontics, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang
| | - Jiabao Ren
- Department of Prosthodontics, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang
| | - Hong Qu
- College of Life Sciences, Peking University, Beijing
| | | | - Wenjing Chen
- Department of Orthodontics, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology, Shijiazhuang
| | | | - Lingqiang Meng
- Department of Prosthodontics, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang
| | - Jiuping Bai
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang, PR China
| | - Qingqing Du
- College of Forensic Medicine, Hebei Medical University
| | | | - Wenjing Shen
- Department of Prosthodontics, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang
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11
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Anbouba GM, Carmany EP, Natoli JL. The characterization of hypodontia, hypohidrosis, and hypotrichosis associated with X-linked hypohidrotic ectodermal dysplasia: A systematic review. Am J Med Genet A 2020; 182:831-841. [PMID: 31981414 DOI: 10.1002/ajmg.a.61493] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 01/12/2023]
Abstract
The objective of this study was to review the published literature on X-linked hypohidrotic ectodermal dysplasia (XLHED) for the prevalence and characteristics of three features of XLHED: hypodontia, hypohidrosis, and hypotrichosis. A systematic search of English-language articles was conducted in May 2019 to identify publications with information on any of the three features of XLHED. We excluded studies with five or fewer participants, that did not specify X-linked inheritance or an EDA mutation, and discussed only management of features. The weighted means for total missing teeth, location of missing teeth, prevalence of reduced and absent sweating ability, and sparse or absent hair were analyzed across all studies. Additional findings for hypodontia, hypohidrosis, and hypotrichosis were summarized qualitatively. Twenty publications (18 studies) were accepted. Reported findings for males tended to be more informative than for carrier females. The weighted mean for missing teeth for affected males was 22.4 (range: 10-28) and carrier females was 3.4 (range: 0-22). The most common conserved teeth for males were the canines. The most common missing teeth for females were the maxillary lateral incisors. The weighted mean prevalence of reduced or absent sweating ability was 95.7% for males and 71.6% for females. The weighted mean prevalence for hypotrichosis was 88.1% for males and 61.6% for females. This systematic review provides insight into the prevalence, characteristics, and variability of the three classic features of XLHED. These findings provide detailed natural history information for families with XLHED as well as key characteristics that can aid in diagnosis.
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Affiliation(s)
- Grace M Anbouba
- Waisman Center, University of Wisconsin-Madison, Madison, Wisconsin.,Wayne State University School of Medicine, Detroit, Michigan
| | - Erin P Carmany
- Wayne State University School of Medicine, Detroit, Michigan
| | - Jaime L Natoli
- Kaiser Permanente Southern California, Pasadena, California
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12
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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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13
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Deleterious Variants in WNT10A, EDAR, and EDA Causing Isolated and Syndromic Tooth Agenesis: A Structural Perspective from Molecular Dynamics Simulations. Int J Mol Sci 2019; 20:ijms20215282. [PMID: 31652981 PMCID: PMC6862269 DOI: 10.3390/ijms20215282] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/18/2019] [Accepted: 10/20/2019] [Indexed: 02/07/2023] Open
Abstract
The dental abnormalities are the typical features of many ectodermal dysplasias along with congenital malformations of nails, skin, hair, and sweat glands. However, several reports of non-syndromic/isolated tooth agenesis have also been found in the literature. The characteristic features of hypohidrotic ectodermal dysplasia (HED) comprise of hypodontia/oligodontia, along with hypohidrosis/anhidrosis, and hypotrichosis. Pathogenic variants in EDA, EDAR, EDARADD, and TRAF6, cause the phenotypic expression of HED. Genetic alterations in EDA and WNT10A cause particularly non-syndromic/isolated oligodontia. In the current project, we recruited 57 patients of 17 genetic pedigrees (A-Q) from different geographic regions of the world, including Pakistan, Egypt, Saudi Arabia, and Syria. The molecular investigation of different syndromic and non-syndromic dental conditions, including hypodontia, oligodontia, generalized odontodysplasia, and dental crowding was carried out by using exome and Sanger sequencing. We have identified a novel missense variant (c.311G>A; p.Arg104His) in WNT10A in three oligodontia patients of family A, two novel sequence variants (c.207delinsTT, p.Gly70Trpfs*25 and c.1300T>G; p.Try434Gly) in EDAR in three patients of family B and four patients of family C, respectively. To better understand the structural and functional consequences of missense variants in WNT10A and EDAR on the stability of the proteins, we have performed extensive molecular dynamic (MD) simulations. We have also identified three previously reported pathogenic variants (c.1076T>C; p.Met359Thr), (c.1133C>T; p.Thr378Met) and (c.594_595insC; Gly201Argfs*39) in EDA in family D (four patients), E (two patients) and F (one patient), correspondingly. Presently, our data explain the genetic cause of 18 syndromic and non-syndromic tooth agenesis patients in six autosomal recessive and X-linked pedigrees (A-F), which expand the mutational spectrum of these unique clinical manifestations.
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14
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Rahbaran M, Hassani Doabsari M, Salavitabar S, Mokhberian N, Morovvati Z, Morovvati S. A novel frameshift mutation in the EDA gene in an Iranian patient affected by X-linked hypohidrotic ectodermal dysplasia. Cell Mol Biol Lett 2019; 24:54. [PMID: 31452656 PMCID: PMC6700831 DOI: 10.1186/s11658-019-0174-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 06/27/2019] [Indexed: 01/01/2023] Open
Abstract
Purpose Ectodermal dysplasias are characterized by developmental abnormalities in ectodermal structures. Hypohidrotic ectodermal dysplasias (HED) are the most common subtype. They are most commonly inherited via X-linked recessive routes. We report on a novel ectodysplasin-A (EDA) mutation that is expected to be involved in pathogenesis of HED. Methods Hypohidrotic ectodermal dysplasia genes, including EDA, EDAR and EDARADD, were analyzed using next-generation sequencing (NGS). The detected mutation on the EDA gene was confirmed in the patient and his mother using Sanger sequencing. Results The patient presented with adontia, absence of gum development, hyperthermia and hypohidrosis. Our genetic analysis of the patient revealed a novel frameshift hemizygous mutation (c.898_924 + 8del35ins4CTTA) on the EDA gene. The patient's mother showed a mild HED phenotype. Direct sequencing of the EDA gene in the region where her son had the mutation showed the same mutation in a heterozygous state. Conclusion We identified a novel frameshift mutation in the EDA gene in an Iranian patient affected by X-linked HED. The difference between our patient's symptoms and those recorded for some previous subjects may be due to the differences in the mutations involved.
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Affiliation(s)
| | | | | | - Neda Mokhberian
- 2Department of biotechnology, School of Advanced Technology in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ziba Morovvati
- 3Department of Medical Genetics, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan, Iran
| | - Saeid Morovvati
- 4Human Genetics Research Center, Baqiyatallah University of Medical Sciences, Mollasadra St, Tehran, Iran
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15
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Milovidova TB, Schagina OA, Freire MV, Demina NA, Filatova AY, Skoblov MY, Stepanova AA, Chuhrova AL, Polyakov AV. X-linked hypohidrotic ectodermal dysplasia: clinical and molecular genetic analysis of a large Russian family with a synonymous p.Ser267= (c.801A>G) splice site mutation. J Eur Acad Dermatol Venereol 2019; 33:e468-e470. [PMID: 31306530 DOI: 10.1111/jdv.15798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- T B Milovidova
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - O A Schagina
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - M V Freire
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - N A Demina
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - A Y Filatova
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - M Y Skoblov
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - A A Stepanova
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - A L Chuhrova
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
| | - A V Polyakov
- Federal State Budgetary Scientific Institution "Research Centre for Medical Genetics", Moscow, Russia
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16
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Park JS, Ko JM, Chae JH. Novel and Private EDA Mutations and Clinical Phenotypes of Korean Patients with X-Linked Hypohidrotic Ectodermal Dysplasia. Cytogenet Genome Res 2019; 158:1-9. [PMID: 31129666 DOI: 10.1159/000500214] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2018] [Indexed: 11/19/2022] Open
Abstract
X-linked hypohidrotic ectodermal dysplasia (XLHED; OMIM 305100) is the most common form of ectodermal dysplasia, presenting with the triad of hypotrichosis, hypodontia, and hypohidrosis. This disorder is caused by mutations in EDA, which encodes ectodysplasin A, a member of the tumor necrosis factor superfamily. In this study, we describe clinical and genetic characteristics of 10 Korean XLHED patients (9 males, 1 female) from 9 families. Nine out of the 10 patients manifested the cardinal triad of symptoms. Six patients had a positive family history, while 2 patients were brothers. The most common initial presentation was hypotrichosis or hypodontia, while 1 patient presented with recurrent high fever in early infancy. Sanger sequencing of the EDA gene was performed and revealed 9 different mutations. Three had been reported previously, and 6 were novel mutations. One female patient, carrying a previously reported missense mutation, might be affected by skewed X-inactivation. This is the first observational study investigating genetically confirmed XLHED patients in Korea. To provide appropriate supportive care and genetic counseling, clinicians should consider the possibility of XLHED in the differential diagnosis of recurrent fever in infants, as well as recognize the typical triad of symptoms.
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17
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Cluzeau C, Marrakchi S, Picard C, Munnich A, Smahi A, Turki H. First homozygous large deletion in EDARADD
gene associated with a severe form of anhidrotic ectodermal dysplasia. J Eur Acad Dermatol Venereol 2018; 33:e55-e57. [DOI: 10.1111/jdv.15182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- C. Cluzeau
- Department of Genetics; Institut Imagine; Assistance Publique-Hôpitaux de Paris (AP-HP); Necker Hospital for Sick Children; INSERM UMR 1163; University Paris Descartes; Paris France
| | - S. Marrakchi
- Department of Dermatology; Hedi Chaker Hospital; Sfax Tunisia
| | - C. Picard
- Laboratory of Lymphocyte Activation and Susceptibility to EBV infection; Imagine Institut; University Paris Descartes; INSERM UMR 1163; Paris France
- Study Center for Primary Immunodeficiencies; AP-HP; Necker Hospital for Sick Children; Paris France
| | - A. Munnich
- Department of Genetics; Institut Imagine; Assistance Publique-Hôpitaux de Paris (AP-HP); Necker Hospital for Sick Children; INSERM UMR 1163; University Paris Descartes; Paris France
| | - A. Smahi
- Department of Genetics; Institut Imagine; Assistance Publique-Hôpitaux de Paris (AP-HP); Necker Hospital for Sick Children; INSERM UMR 1163; University Paris Descartes; Paris France
| | - H. Turki
- Department of Dermatology; Hedi Chaker Hospital; Sfax Tunisia
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18
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Liu Y, Huang Y, Hua R, Zhao X, Yang W, Liu Y, Zhang X. Mutation Screening of the EDA Gene in Seven Chinese Families with X-Linked Hypohidrotic Ectodermal Dysplasia. Genet Test Mol Biomarkers 2018; 22:487-491. [PMID: 30117778 DOI: 10.1089/gtmb.2018.0100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND As the most common form of ectodermal dysplasia (ED), X-linked hypohidrotic ED (XLHED) is characterized by the triad of hypohidrosis, hypotrichosis, and anodontia in male patients. The gene responsible for XLHED is EDA. To date, more than 300 mutations have been identified in this gene, including point mutations, deletions, and insertions. Most of the mutations result in XLHED, while the rest cause X-linked dominant incisor hypodontia. OBJECTIVE Mutation screening was performed in seven Chinese families with XLHED. RESULTS Mutations were identified in all seven families, including four previously reported missense mutations (p.M1T, p.R156C, p.G299S, and p.A349T) and three novel mutations; missense mutation (p.Q358 L), indel (P228Tfs*52), as well as a large deletion. CONCLUSION Our results extend the mutational spectrum of EDA and can be helpful with genetic counseling and prenatal diagnosis for these families.
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Affiliation(s)
- Yanshan Liu
- 1 McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences , School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Yingzhi Huang
- 1 McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences , School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Rui Hua
- 2 Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University , Guangzhou, China
| | - Xiuli Zhao
- 1 McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences , School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Wei Yang
- 1 McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences , School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Yaping Liu
- 1 McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences , School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Xue Zhang
- 1 McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences , School of Basic Medicine Peking Union Medical College, Beijing, China
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19
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Zeng B, Zhao Q, Li S, Lu H, Lu J, Ma L, Zhao W, Yu D. Novel EDA or EDAR Mutations Identified in Patients with X-Linked Hypohidrotic Ectodermal Dysplasia or Non-Syndromic Tooth Agenesis. Genes (Basel) 2017; 8:genes8100259. [PMID: 28981473 PMCID: PMC5664109 DOI: 10.3390/genes8100259] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 09/21/2017] [Accepted: 09/29/2017] [Indexed: 01/02/2023] Open
Abstract
Both X-linked hypohidrotic ectodermal dysplasia (XLHED) and non-syndromic tooth agenesis (NSTA) result in symptoms of congenital tooth loss. This study investigated genetic causes in two families with XLHED and four families with NSTA. We screened for mutations of WNT10A, EDA, EDAR, EDARADD, PAX9, MSX1, AXIN2, LRP6, and WNT10B through Sanger sequencing. Whole exome sequencing was performed for the proband of NSTA Family 4. Novel mutation c.1051G>T (p.Val351Phe) and the known mutation c.467G>A (p.Arg156His) of Ectodysplasin A (EDA) were identified in families with XLHED. Novel EDA receptor (EDAR) mutation c.73C>T (p.Arg25*), known EDA mutation c.491A>C (p.Glu164Ala), and known Wnt family member 10A (WNT10A) mutations c.511C>T (p.Arg171Cys) and c.742C>T (p.Arg248*) were identified in families with NSTA. The novel EDA and EDAR mutations were predicted as being pathogenic through bioinformatics analyses and structural modeling. Two variants of WNT10A, c.374G>A (p.Arg125Lys) and c.125A>G (p.Asn42Ser), were found in patients with NSTA. The two WNT10A variants were predicted to affect the splicing of message RNA, but minigene experiments showed normal splicing of mutated minigenes. This study uncovered the genetic foundations with respect to six families with XLHED or NSTA. We identified six mutations, of which two were novel mutations of EDA and EDAR. This is the first report of a nonsense EDAR mutation leading to NSTA.
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Affiliation(s)
- Binghui Zeng
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
| | - Qi Zhao
- Department of Oncology, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China.
| | - Sijie Li
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
| | - Hui Lu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
| | - Jiaxuan Lu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
| | - Lan Ma
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
| | - Wei Zhao
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
| | - Dongsheng Yu
- Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
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Abstract
PURPOSE OF REVIEW The ebb and flow of genetic influence relative to the understanding of craniofacial and dental disorders has evolved into a tacit acceptance of the current genetic paradigm. This review explores the science behind craniofacial and dental disorders through the lens of recent past and current findings and using tooth agenesis as a model of advances in craniofacial genetics. RECENT FINDINGS Contemporary studies of craniofacial biology takes advantage of the technological resources stemming from the genomic and post-genomic eras. Emerging data highlights the role of key genes and the epigenetic landscape controlling these genes, in causing dentofacial abnormalities. We also report here a novel Glu78FS MSX1 mutation in one family segregating an autosomal dominant form of severe tooth agenesis as an illustration of an evolving theme, i.e., different mutations in the same gene can result in a spectrum of dentofacial phenotypic severity. The future of clinical therapeutics will benefit from advances in genetics and molecular biology that refine the genotype-phenotype correlation. Indeed, the past century suggests a continued convergence of genetic science in the practice of clinical dentistry.
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Affiliation(s)
- Sylvia A Frazier-Bowers
- Department of Orthodontics, School of Dentistry, University of North Carolina at Chapel Hill, CB #7450, Chapel Hill, NC, 27599-7450, USA.
| | - Siddharth R Vora
- Department of Oral Health Sciences, Faculty of Dentistry, University of British Columbia, JBM-184 - 2199 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
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Eight Mutations of Three Genes (EDA, EDAR, and WNT10A) Identified in Seven Hypohidrotic Ectodermal Dysplasia Patients. Genes (Basel) 2016; 7:genes7090065. [PMID: 27657131 PMCID: PMC5042395 DOI: 10.3390/genes7090065] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/01/2016] [Accepted: 09/12/2016] [Indexed: 01/03/2023] Open
Abstract
Hypohidrotic ectodermal dysplasia (HED) is characterized by abnormal development of the teeth, hair, and sweat glands. Ectodysplasin A (EDA), Ectodysplasin A receptor (EDAR), and EDAR-associated death domain (EDARADD) are candidate genes for HED, but the relationship between WNT10A and HED has not yet been validated. In this study, we included patients who presented at least two of the three ectodermal dysplasia features. The four genes were analyzed in seven HED patients by PCR and Sanger sequencing. Five EDA and one EDAR heterozygous mutations were identified in families 1–6. Two WNT10A heterozygous mutations were identified in family 7 as a compound heterozygote. c.662G>A (p.Gly221Asp) in EDA and c.354T>G (p.Tyr118*) in WNT10A are novel mutations. Bioinformatics analyses results confirmed the pathogenicity of the two novel mutations. In family 7, we also identified two single-nucleotide polymorphisms (SNPs) that were predicted to affect the splicing of EDAR. Analysis of the patient’s total RNA revealed normal splicing of EDAR. This ascertained that the compound heterozygous WNT10A mutations are the genetic defects that led to the onset of HED. Our data revealed the genetic basis of seven HED patients and expended the mutational spectrum. Interestingly, we confirmed WNT10A as a candidate gene of HED and we propose WNT10A to be tested in EDA-negative HED patients.
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Chaudhary AK, Sankar VH, Bashyam MD. A novel large deletion that encompasses EDA and the downstream gene AWAT2 causes X-linked hypohidrotic/anhidrotic ectodermal dysplasia. J Dermatol Sci 2016; 84:105-107. [PMID: 27443954 DOI: 10.1016/j.jdermsci.2016.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/28/2016] [Accepted: 06/28/2016] [Indexed: 10/21/2022]
Affiliation(s)
- Ajay K Chaudhary
- Laboratory of Molecular Oncology, Centre for DNA Fingerprinting and Diagnostics (CDFD), Hyderabad, India
| | - V H Sankar
- Department of Paediatrics, SAT Hospital, Medical College, Trivandrum, India
| | - Murali D Bashyam
- Laboratory of Molecular Oncology, Centre for DNA Fingerprinting and Diagnostics (CDFD), Hyderabad, India.
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De novo EDA mutations: Variable expression in two Egyptian families. Arch Oral Biol 2016; 68:21-8. [PMID: 27054699 DOI: 10.1016/j.archoralbio.2016.03.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/28/2016] [Accepted: 03/29/2016] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Mutations in the EDA gene, encoding the epithelial morphogen ectodysplasin-A, can result in different but overlapping phenotypes. Therefore the aim of the study was to search for etiological variations of EDA and other candidate genes in two unrelated Egyptian male children with sporadic non-syndromic tooth agenesis (NTA) and hypohidrotic ectodermal dysplasia (HED). DESIGN Direct sequencing of the coding regions including exon-intron boundaries of EDA, MSX1, PAX9, WNT10A and EDAR was performed in probands and their available family members. RESULTS Two etiological mutations were found in the EDA coding region. The patient with NTA in both deciduous and permanent dentition was a carrier of a novel in-frame deletion situated in the short collagenous domain (c.663-680delTCCTCCTGGTCCTCAAGG, p.222-227delPPGPQG). The second mutation, located outside the minimal furin consensus motif (c.463C>T, p.Arg155Cys, rs132630312), was identified in the patient exhibiting all typical features of HED. The identified EDA mutations were not detected in probands' family members as well as in 188 unrelated control individuals. No pathogenic variants were found in the MSX1, PAX9, WNT10A and EDAR genes. CONCLUSION Our results increase the knowledge of the spectrum of EDA mutations and confirm that this gene is an important candidate gene for two developmental diseases sharing the common feature of the congenital lack of teeth. In addition, these results can support the hypothesis that X-linked HED and EDA-related NTA are the same disease with different degrees of severity.
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Li D, Xu R, Huang F, Wang B, Tao Y, Jiang Z, Li H, Yao J, Xu P, Wu X, Ren L, Zhang R, Kelsoe JR, Ma J. A novel missense mutation in collagenous domain of EDA gene in a Chinese family with X-linked hypohidrotic ectodermal dysplasia. J Genet 2016; 94:115-9. [PMID: 25846883 DOI: 10.1007/s12041-015-0474-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Daxu Li
- Stomatology Clinic, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China.
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Zeng B, Lu H, Xiao X, Zhou L, Lu J, Zhu L, Yu D, Zhao W. NovelEDAmutation in X-linked hypohidrotic ectodermal dysplasia and genotype-phenotype correlation. Oral Dis 2015; 21:994-1000. [DOI: 10.1111/odi.12376] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 08/25/2015] [Accepted: 09/16/2015] [Indexed: 11/28/2022]
Affiliation(s)
- B Zeng
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
- Department of Medical Genetics; Zhongshan School of Medicine and Center for Genome Research; Sun Yat-sen University; Guangzhou China
| | - H Lu
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
| | - X Xiao
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
| | - L Zhou
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
| | - J Lu
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
| | - L Zhu
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
| | - D Yu
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
| | - W Zhao
- Guanghua School of Stomatology; Guangdong Provincial Key Laboratory of Stomatology; Sun Yat-sen University; Guangzhou China
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Salas-Alanis JC, Wozniak E, Mein CA, Duran Mckinster CC, Ocampo-Candiani J, Kelsell DP, Hua R, Garza-Rodriguez ML, Choate KA, Barrera Saldaña HA. Mutations in EDA and EDAR Genes in a Large Mexican Hispanic Cohort with Hypohidrotic Ectodermal Dysplasia. Ann Dermatol 2015; 27:474-7. [PMID: 26273176 PMCID: PMC4530170 DOI: 10.5021/ad.2015.27.4.474] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/12/2014] [Accepted: 09/19/2014] [Indexed: 11/10/2022] Open
Affiliation(s)
- Julio C Salas-Alanis
- Dermatology Department, Hospital Universitario, Universidad Autonoma de Nuevo Leon, Monterrey, NL, Mexico. ; Basic Science Department, Medicine School, Universidad de Monterrey, Monterrey, NL, Mexico
| | - Eva Wozniak
- Barts and the London Genome Centre, John Vane Science Centre, Barts and the London School of Medicine and Dentistry, University of London, London, United Kingdom
| | - Charles A Mein
- Barts and the London Genome Centre, John Vane Science Centre, Barts and the London School of Medicine and Dentistry, University of London, London, United Kingdom
| | | | - Jorge Ocampo-Candiani
- Dermatology Department, Hospital Universitario, Universidad Autonoma de Nuevo Leon, Monterrey, NL, Mexico
| | - David P Kelsell
- Centre for Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Rong Hua
- Departments of Dermatology, Genetics, and Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Maria L Garza-Rodriguez
- Facultad de Medicina, Departamento de Bioquímica y Medicina Molecular, Universidad Autonoma de Nuevo Leon, Monterrey, NL, Mexico
| | - Keith A Choate
- Departments of Dermatology, Genetics, and Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Hugo A Barrera Saldaña
- Facultad de Medicina, Departamento de Bioquímica y Medicina Molecular, Universidad Autonoma de Nuevo Leon, Monterrey, NL, Mexico. ; Vitagenesis, Monterrey, NL, Mexico
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Reinholz M, Gauglitz G, Giehl K, Braun-Falco M, Schwaiger H, Schauber J, Ruzicka T, Berneburg M, von Braunmühl T. Non-invasive diagnosis of sweat gland dysplasia using optical coherence tomography and reflectance confocal microscopy in a family with anhidrotic ectodermal dysplasia (Christ-Siemens-Touraine syndrome). J Eur Acad Dermatol Venereol 2015; 30:677-82. [DOI: 10.1111/jdv.13085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 01/23/2015] [Indexed: 02/01/2023]
Affiliation(s)
- M. Reinholz
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - G.G. Gauglitz
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - K. Giehl
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - M. Braun-Falco
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - H. Schwaiger
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - J. Schauber
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - T. Ruzicka
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - M. Berneburg
- Department of Dermatology; University of Regensburg; Regensburg Germany
| | - T. von Braunmühl
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
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Pozo-Molina G, Reyes-Reali J, Mendoza-Ramos MI, Villalobos-Molina R, Garrido-Guerrero E, Méndez-Cruz AR. Novel missense mutation in the EDA1 gene identified in a family with hypohidrotic ectodermal dysplasia. Int J Dermatol 2015; 54:790-4. [DOI: 10.1111/ijd.12775] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 04/15/2014] [Accepted: 06/01/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Glustein Pozo-Molina
- Laboratorio de Inmunología; Facultad de Estudios Superiores Iztacala; Universidad Nacional Autónoma de México; Mexico City Mexico
- Laboratorio de Investigación en Biología Molecular y Celular del Cáncer; Departamento de Genética y Biología Molecular; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Mexico City Mexico
| | - Julia Reyes-Reali
- Laboratorio de Inmunología; Facultad de Estudios Superiores Iztacala; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - María Isabel Mendoza-Ramos
- Laboratorio de Inmunología; Facultad de Estudios Superiores Iztacala; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - Rafael Villalobos-Molina
- Unidad de Biomedicina; Facultad de Estudios Superiores Iztacala; Universidad Nacional Autónoma de México; Tlalnepantla Edo. de México, México Mexico
| | - Efraín Garrido-Guerrero
- Laboratorio de Investigación en Biología Molecular y Celular del Cáncer; Departamento de Genética y Biología Molecular; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Mexico City Mexico
| | - Adolfo René Méndez-Cruz
- Laboratorio de Inmunología; Facultad de Estudios Superiores Iztacala; Universidad Nacional Autónoma de México; Mexico City Mexico
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Wang H, Xie LS. Novel nonsense mutation of the EDA gene in a Chinese family with X-linked hypohidrotic ectodermal dysplasia. J Dermatol 2014; 41:1014-6. [PMID: 25296636 DOI: 10.1111/1346-8138.12644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Wang
- Hangzhou First People's Hospital, Hangzhou, Zhejiang, China
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Al Marzouqi F, Michot C, Dos Santos S, Bonnefont JP, Bodemer C, Hadj-Rabia S. Bilateral amastia in a female with X-linked hypohidrotic ectodermal dysplasia. Br J Dermatol 2014; 171:671-3. [PMID: 24689965 DOI: 10.1111/bjd.13023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- F Al Marzouqi
- Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), 149 rue de Sèvres, FR-75015, Paris, France
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Guazzarotti L, Tadini G, Mancini GE, Giglio S, Willoughby CE, Callea M, Sani I, Nannini P, Mameli C, Tenconi AA, Mauri S, Bottero A, Caimi A, Morelli M, Zuccotti GV. Phenotypic heterogeneity and mutational spectrum in a cohort of 45 Italian males subjects with X-linked ectodermal dysplasia. Clin Genet 2014; 87:338-42. [PMID: 24724966 DOI: 10.1111/cge.12404] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 04/11/2014] [Accepted: 04/11/2014] [Indexed: 11/26/2022]
Abstract
Ectodermal dysplasias (EDs) are a group of genetic disorders characterized by the abnormal development of the ectodermal-derived structures. X-linked hypohidrotic ectodermal dysplasia, resulting from mutations in ED1 gene, is the most common form. The main purpose of this study was to characterize the phenotype spectrum in 45 males harboring ED1 mutations. The study showed that in addition to the involvement of the major ectodermal tissues, the majority of patients also have alterations of several minor ectodermal-derived structures. Characterizing the clinical spectrum resulting from ED1 gene mutations improves diagnosis and can direct clinical care.
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Affiliation(s)
- L Guazzarotti
- Department of Pediatrics, University of Milan, Luigi Sacco Hospital, Milan, Italy
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Fete M, Hermann J, Behrens J, Huttner KM. X-linked hypohidrotic ectodermal dysplasia (XLHED): clinical and diagnostic insights from an international patient registry. Am J Med Genet A 2014; 164A:2437-42. [PMID: 24664614 DOI: 10.1002/ajmg.a.36436] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 12/01/2013] [Indexed: 11/10/2022]
Abstract
The web-based Ectodermal Dysplasia International Registry (EDIR) is a comprehensive patient-reported survey contributing to an understanding of ectodermal dysplasia (ED). XLHED is the most common of the genetic ED syndromes and was the primary diagnosis reported by 223/835 respondents (141 males and 82 females). Overall, 96% of XLHED registrants reported as least one other affected family member and 21% reported a family history of infant or childhood deaths, consistent with the published mortality data in this disorder. In general, XLHED is diagnosed by the triad of decreased sweating, reduced hair, and hypodontia (present in 89%, 74%, and 74% of XLHED respondents). Additionally, the registry dataset confirmed a spectrum of life-long XLHED clinical complications including recurrent sinus infections (49% males, 52% females), nasal congestion often foul smelling and interfering with feeding (73% males, 27% females), eczema (66% males, 40% females), wheezing (66% males, 45% females), and a hoarse, raspy voice (67% males, 23% females). The Registry results also highlighted features consistently differentiating XLHED from the non-hypohidrotic ED syndromes including the frequency of infant/childhood deaths, the presence of limb/digit abnormalities, feeding issues related to nasal discharge, dentures, and a diagnosis of asthma. These results represent the largest collection of data on a broad-spectrum of health-related issues affecting ED patients. This project provides information for expanding knowledge of the natural history of XLHED, and as such may facilitate the diagnosis and treatment of its varied and lifelong medical challenges.
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Affiliation(s)
- Mary Fete
- National Foundation for Ectodermal Dysplasia, Mascoutah, Illinois
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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.
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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
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Dietz J, Kaercher T, Schneider AT, Zimmermann T, Huttner K, Johnson R, Schneider H. Early respiratory and ocular involvement in X-linked hypohidrotic ectodermal dysplasia. Eur J Pediatr 2013; 172:1023-31. [PMID: 23553579 DOI: 10.1007/s00431-013-1985-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/21/2013] [Accepted: 02/27/2013] [Indexed: 02/04/2023]
Abstract
UNLABELLED X-linked hypohidrotic ectodermal dysplasia (XLHED; ectodysplasin deficiency) has been classically described as affecting hair, sweat glands, and dentition. What may be underappreciated is the effect ectodysplasin deficiency has on glands surrounding the airways and eyes and the resulting chronic health issues. In this study, 12 male children (age range 6-13 years) and 14 male adults with XLHED (18-58 years of age) were investigated by pulmonary function tests, measurement of fractional exhaled nitric oxide, and by ophthalmologic assessments. Twelve healthy individuals (six children, six adults) served as controls. Signs of airway constriction and inflammation were detected in eight children with XLHED, including the youngest subject, and in ten adult XLHED patients. Increased tear osmolarity, reduced tear film break-up time, and other ocular abnormalities were also present at an early age. Five of 12 XLHED subjects not reporting a history of asthma and 7 of the 12 patients not reporting a history of dry eye issues showed at least two abnormal test results in the respective organ system. The presence of residual sweat ducts, suggestive of partial ectodysplasin gene expression, correlated with milder disease in two XLHED subjects with mutations affecting the collagen-like domain of ectodysplasin. CONCLUSION The high prevalence of asthma-like symptoms in XLHED patients as young as 6 years and a similar prevalence of dry eye problems indicate that screening evaluation, regular monitoring, and consideration of therapeutic intervention should begin in early childhood.
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Affiliation(s)
- Jasna Dietz
- German Competence Centre for Children with Ectodermal Dysplasias, Department of Pediatrics, University of Erlangen-Nürnberg, Erlangen, Germany
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Nguyen-Nielsen M, Skovbo S, Svaneby D, Pedersen L, Fryzek J. The prevalence of X-linked hypohidrotic ectodermal dysplasia (XLHED) in Denmark, 1995–2010. Eur J Med Genet 2013; 56:236-42. [DOI: 10.1016/j.ejmg.2013.01.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 01/28/2013] [Indexed: 11/29/2022]
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Yin W, Ye X, Fan H, Bian Z. Methylation state of the EDA gene promoter in Chinese X-linked hypohidrotic ectodermal dysplasia carriers. PLoS One 2013; 8:e62203. [PMID: 23626789 PMCID: PMC3633848 DOI: 10.1371/journal.pone.0062203] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 03/20/2013] [Indexed: 12/15/2022] Open
Abstract
Introduction Hypodontia, hypohidrosis, sparse hair and characteristic faces are the main characters of X-linked hypohidrotic ectodermal dysplasia (XLHED) which is caused by genetic ectodysplasin A (EDA) deficiency. Heterozygous female carriers tend to have mild to moderate XLHED phenotype, even though 30% of them present no obvious symptom. Methods A large Chinese XLHED family was reported and the entire coding region and exon–intron boundaries of EDA gene were sequenced. To elucidate the mechanism for carriers’ tempered phenotype, we analyzed the methylation level on four sites of the promoter of EDA by the pyrosequencing system. Results A known frameshift mutation (c.573–574 insT) was found in this pedigree. Combined with the pedigrees we reported before, 120 samples comprised of 23 carrier females from 11 families and 97 healthy females were analyzed for the methylation state of EDA promoter. Within 95% confidence interval (CI), 18 (78.26%) carriers were hypermethylated at these 4 sites. Conclusion Chinese XLHED carriers often have a hypermethylated EDA promoter.
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Affiliation(s)
- Wei Yin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
- Department of Endodontics and Periodontics, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Xiaoqian Ye
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Huali Fan
- The Second General Department, Hangzhou Stomatology Hospital, Hangzhou, Zhejiang, China
| | - Zhuan Bian
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
- * E-mail:
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Yin W, Ye X, Bian Z. The Second Deletion Mutation in Exon 8 ofEDAGene in an XLHED Pedigree. Dermatology 2013; 226:105-10. [DOI: 10.1159/000346610] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 10/24/2012] [Indexed: 11/19/2022] Open
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Yin W, Ye X, Bian Z. Phenotypic findings in Chinese families with X-linked hypohydrotic ectodermal dysplasia. Arch Oral Biol 2012; 57:1418-22. [DOI: 10.1016/j.archoralbio.2012.03.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 03/29/2012] [Accepted: 03/31/2012] [Indexed: 10/28/2022]
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39
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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]
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Tian S, Huajun W, Wu J. Computational prediction of furin cleavage sites by a hybrid method and understanding mechanism underlying diseases. Sci Rep 2012; 2:261. [PMID: 22355773 PMCID: PMC3281273 DOI: 10.1038/srep00261] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 01/23/2012] [Indexed: 11/09/2022] Open
Abstract
Furin cleaves diverse types of protein precursors in the secretory pathway. The substrates
for furin cleavage possess a specific 20-residue recognition sequence motif. In this report,
based on the functional characterisation of the 20-residue sequence motif, we developed a
furin cleavage site prediction tool, PiTou, using a hybrid method composed of a hidden
Markov model and biological knowledge-based cumulative probability score functions. PiTou
can accurately predict the presence and location of furin cleavage sites in protein
sequences with high sensitivity (96.9%) and high specificity (97.3%). PiTou's prediction
scores are biological meaningful and reflect binding strength and solvent accessibility of
furin substrates. A prediction result is interpreted within cellular contexts: subcellular
localisation, cellular function and interference by other dynamic protein modifications.
Combining next-generation sequencing, PiTou can help with elucidating the molecular
mechanism of furin cleavage-associated human diseases. PiTou has been made freely available
at the associated website.
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Godefroy JE, Bornert F, Gros CI, Constantinesco A. Elliptical Fourier descriptors for contours in three dimensions: a new tool for morphometrical analysis in biology. C R Biol 2012; 335:205-13. [PMID: 22464428 DOI: 10.1016/j.crvi.2011.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 12/12/2011] [Accepted: 12/18/2011] [Indexed: 11/16/2022]
Abstract
Elliptical Fourier descriptor analysis is a method for the morphometric study of curves. It has been used in the two-dimensional plane for closed contours, but rarely for lines in the three-dimensional space. The method consists of an expansion of a contour as a sum of ellipses. In this article, we study three-dimensional contours, i.e. lines embedded in the three-dimensional space. We compute for the first time the relations between the Fourier coefficients and its geometric parameters. We then use these relations for normalization and reorientation of three-dimensional contours. Such an algorithm can be used to perform inter-individual comparisons between contours, regardless of differences in viewpoint or global size. Human and small animal illustrative examples using biomedical X-ray CT imaging data of open bone structures demonstrate the interest and potential of the method for morphological analysis.
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Affiliation(s)
- Jérémy E Godefroy
- Preclinical Imaging Lab, biophysique et médecine nucléaire, hôpitaux universitaires de Strasbourg, Strasbourg cedex, France.
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Keller MD, Petersen M, Ong P, Church J, Risma K, Burham J, Jain A, Stiehm ER, Hanson EP, Uzel G, Deardorff MA, Orange JS. Hypohidrotic ectodermal dysplasia and immunodeficiency with coincident NEMO and EDA mutations. Front Immunol 2011; 2:61. [PMID: 22566850 PMCID: PMC3341983 DOI: 10.3389/fimmu.2011.00061] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 10/20/2011] [Indexed: 12/29/2022] Open
Abstract
Ectodermal dysplasias (ED) are uncommon genetic disorders resulting in abnormalities in ectodermally derived structures. Many ED-associated genes have been described, of which ectodysplasin-A (EDA) is one of the more common. The NF-κB essential modulator (NEMO encoded by the IKBKG gene) is unique in that mutations result in severe humoral and cellular immunologic defects in addition to ED. We describe three unrelated kindreds with defects in both EDA and IKBKG resulting from X-chromosome crossover. This demonstrates the importance of thorough immunologic consideration of patients with ED even when an EDA etiology is confirmed, and raises the possibility of a specific phenotype arising from coincident mutations in EDA and IKBKG.
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Affiliation(s)
- Michael D Keller
- Division of Immunology, Children's Hospital of Philadelphia Philadelphia, PA, USA
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43
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Cañueto J, Zafra-Cobo M, Ciria S, Unamuno P, González-Sarmiento R. A novel EDA gene mutation in a Spanish family with X-linked hypohidrotic ectodermal dysplasia. ACTAS DERMO-SIFILIOGRAFICAS 2011. [DOI: 10.1016/j.adengl.2011.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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44
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Cañueto J, Zafra-Cobo M, Ciria S, Unamuno P, González-Sarmiento R. A novel EDA gene mutation in a Spanish family with X-linked hypohidrotic ectodermal dysplasia. ACTAS DERMO-SIFILIOGRAFICAS 2011; 102:722-5. [DOI: 10.1016/j.ad.2011.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 03/29/2011] [Accepted: 04/03/2011] [Indexed: 10/18/2022] Open
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Lobito AA, Gabriel TL, Medema JP, Kimberley FC. Disease causing mutations in the TNF and TNFR superfamilies: Focus on molecular mechanisms driving disease. Trends Mol Med 2011; 17:494-505. [PMID: 21724465 DOI: 10.1016/j.molmed.2011.05.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 05/04/2011] [Accepted: 05/18/2011] [Indexed: 12/31/2022]
Abstract
The tumor necrosis factor (TNF) and TNF receptor (TNFR) superfamilies comprise multidomain proteins with diverse roles in cell activation, proliferation and cell death. These proteins play pivotal roles in the initiation, maintenance and termination of immune responses and have vital roles outside the immune system. The discovery and analysis of diseases associated with mutations in these families has revealed crucial mechanistic details of their normal functions. This review focuses on mutations causing four different diseases, which represent distinct pathological mechanisms that can exist within these superfamilies: autoimmune lymphoproliferative syndrome (ALPS; FAS mutations), common variable immunodeficiency (CVID; TACI mutations), tumor necrosis factor receptor associated periodic syndrome (TRAPS; TNFR1 mutations) and hypohidrotic ectodermal dysplasia (HED; EDA1/EDAR mutations). In particular, we highlight how mutations have revealed information about normal receptor-ligand function and how such studies might direct new therapeutic approaches.
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Affiliation(s)
- Adrian A Lobito
- Protein Sciences, Catalyst Biosciences, 260 Littlefield Avenue, South San Francisco, CA 94080, USA
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46
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Bornert F, Choquet P, Gros CI, Aubertin G, Perrin-Schmitt F, Clauss F, Lesot H, Constantinesco A, Schmittbuhl M. Subtle Morphological Changes in the Mandible of Tabby Mice Revealed by Micro-CT Imaging and Elliptical Fourier Quantification. Front Physiol 2011; 2:15. [PMID: 21541253 PMCID: PMC3082932 DOI: 10.3389/fphys.2011.00015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2011] [Accepted: 03/26/2011] [Indexed: 11/13/2022] Open
Abstract
X-linked hypohidrotic ectodermal dysplasia (XLHED) is a genetic disorder due to a mutation of the EDA gene and is mainly characterized by an impaired formation of hair, teeth and sweat glands, and craniofacial dysmorphologies. Although tooth abnormalities in Tabby (Ta) mutant mice - the murine model of XLHED - have been extensively studied, characterization of the craniofacial complex, and more specifically the mandibular morphology has received less attention. From 3D micro-CT reconstructions of the left mandible, the mandibular outline observed in lateral view, was quantified using 2D elliptical Fourier analysis. Comparisons between Ta specimens and their wild-type controls were carried out showing significant shape differences between mouse strains enabling a clear distinction between hemizygous Ta specimens and the other mouse groups (WT and heterozygous Eda(Ta/+) specimens). Morphological differences associated with HED correspond not only to global mandibular features (restrained development of that bone along dorsoventral axis), but also to subtle aspects such as the marked backward projection of the coronoid process or the narrowing of the mandibular condylar neck. These modifications provide for the first time, evidence of a predominant effect of the Ta mutation on the mandibular morphology. These findings parallel the well described abnormalities of jugal tooth row and skeletal defects in Ta mice, and underline the role played by EDA-A in the reciprocal epithelial-mesenchymal interactions that are of critical importance in normal dental and craniofacial development.
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Affiliation(s)
- Fabien Bornert
- Institut National de la Santé et de la Recherche Médicale, INSERM UMR 977, University of Strasbourg Strasbourg, France
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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.
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Affiliation(s)
- Jin Zhang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China
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48
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Cluzeau C, Hadj-Rabia S, Jambou M, Mansour S, Guigue P, Masmoudi S, Bal E, Chassaing N, Vincent MC, Viot G, Clauss F, Manière MC, Toupenay S, Le Merrer M, Lyonnet S, Cormier-Daire V, Amiel J, Faivre L, de Prost Y, Munnich A, Bonnefont JP, Bodemer C, Smahi A. Only four genes (EDA1, EDAR, EDARADD, and WNT10A) account for 90% of hypohidrotic/anhidrotic ectodermal dysplasia cases. Hum Mutat 2010; 32:70-2. [PMID: 20979233 DOI: 10.1002/humu.21384] [Citation(s) in RCA: 195] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Céline Cluzeau
- Université Paris Descartes, INSERM U, Hôpital Necker-Enfants Malades, France
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49
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Reyes-Chicuellar N, De Haro R, Jiménez-Flores R, Monje-Martínez J, Motta-Castañeda N, Mendoza-Ramos MI, Méndez-Cruz AR. Case report: Higher-than-expected prevalence of hypohidrotic ectodermal dysplasia in a rural Mexican setting: report of 20 cases. Int J Dermatol 2010; 49:1050-5. [DOI: 10.1111/j.1365-4632.2009.04362.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Khabour OF, Mesmar FS, Al-Tamimi F, Al-Batayneh OB, Owais AI. Missense mutation of the EDA gene in a Jordanian family with X-linked hypohidrotic ectodermal dysplasia: phenotypic appearance and speech problems. GENETICS AND MOLECULAR RESEARCH 2010; 9:941-8. [PMID: 20486090 DOI: 10.4238/vol9-2gmr810] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Mutations in the EDA gene are responsible for X-linked hypohidrotic ectodermal dysplasia, the most common form of ectodermal dysplasia. Males show a severe form of this disease, while females often manifest mild to moderate symptoms. We identified a missense mutation (c.463C>T) in the EDA gene in a Jordanian family, using direct DNA sequencing. This mutation leads to an amino acid change of arginine to cysteine in the extracellular domain of ectodysplasin-A, a protein encoded by the EDA gene. The phenotype of a severely affected 11-year-old boy with this mutation included heat intolerance, sparse hair (hypotrichosis), absence of 17 teeth (oligodontia), speech problems, and damaged eccrine glands, resulting in reduced sweating (anhidrosis). Both the mother (40 years old) and the sister (10 years old) were carriers with mild to moderate symptoms of this disease, while the father was healthy. This detailed description of the phenotype caused by this missense mutation could be useful for prenatal diagnosis.
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Affiliation(s)
- O F Khabour
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid, Jordan.
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