1
|
Yao Y, Yang R, Zhu J, Schlessinger D, Sima J. EDA ligand triggers plasma membrane trafficking of its receptor EDAR via PKA activation and SNAP23-containing complexes. Cell Biosci 2023; 13:128. [PMID: 37430358 DOI: 10.1186/s13578-023-01082-8] [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: 02/12/2023] [Accepted: 07/05/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Ectodysplasin-A (EDA), a skin-specific TNF ligand, interacts with its membrane receptor EDAR to trigger EDA signaling in skin appendage formation. Gene mutations in EDA signaling cause Anhidrotic/Hypohidrotic Ectodermal Dysplasia (A/HED), which affects the formation of skin appendages including hair, teeth, and several exocrine glands. RESULTS We report that EDA triggers the translocation of its receptor EDAR from a cytosolic compartment into the plasma membrane. We use protein affinity purification to show that upon EDA stimulation EDAR associates with SNAP23-STX6-VAMP1/2/3 vesicle trafficking complexes. We find that EDA-dependent PKA activation is critical for the association. Notably, either of two HED-linked EDAR mutations, T346M and R420W, prevents EDA-induced EDAR translocation; and both EDA-induced PKA activation and SNAP23 are required for Meibomian gland (MG) growth in a skin appendage model. CONCLUSIONS Overall, in a novel regulatory mechanism, EDA increases plasma membrane translocation of its own receptor EDAR, augmenting EDA-EDAR signaling in skin appendage formation. Our findings also provide PKA and SNAP23 as potential targets for the intervention of HED.
Collapse
Affiliation(s)
- Yuyuan Yao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Ruihan Yang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Jian Zhu
- Department of Psychology, Eastern Illinois University, Charleston, IL, 61920, USA
| | - David Schlessinger
- Laboratory of Genetics and Genomics, NIA/NIH-IRP, 251 Bayview Blvd, Room 10B014, Baltimore, MD, 21224, USA
| | - Jian Sima
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
| |
Collapse
|
2
|
Yagi S, Yasuno S, Ansai O, Hayashi R, Shimomura Y. Different degree of loss-of-function among four missense mutations in the EDAR gene responsible for autosomal recessive hypohidrotic ectodermal dysplasia may be associated with the phenotypic severity. J Dermatol 2023; 50:349-356. [PMID: 36258277 DOI: 10.1111/1346-8138.16610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 11/30/2022]
Abstract
Hypohidrotic ectodermal dysplasia is a rare condition characterized by hypohidrosis, hypodontia, and hypotrichosis. The disease can show X-linked recessive, autosomal dominant or autosomal recessive inheritance trait. Of these, the autosomal forms are caused by mutations in either EDAR or EDARADD. To date, the underlying pathomechanisms or genotype-phenotype correlations for autosomal forms have not completely been disclosed. In this study, we performed a series of in vitro studies for four missense mutations in the death domain of EDAR protein: p.R358Q, p.G382S, p.I388T, and p.T403M. The results revealed that p.R358Q- and p.T403M-mutant EDAR showed different expression patterns from wild-type EDAR in both western blots and immunostainings. NF-κB reporter assays demonstrated that all the mutant EDAR showed reduced activation of NF-κB, but the reduction by p.G382S- and p.I388T-mutant EDAR was moderate. Co-immunoprecipitation assays showed that p.R358Q- and p.T403M-mutant EDAR did not bind with EDARADD at all, whereas p.G382S- and p.I388T-mutant EDAR maintained the affinity to some extent. Furthermore, we demonstrated that all the mutant EDAR proteins analyzed aberrantly bound with TRAF6. Sum of the data suggest that the degree of loss-of-function is different among the mutant EDAR proteins, which may be associated with the severity of the disease.
Collapse
Affiliation(s)
- Sasagu Yagi
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Department of Plastic Surgery, Yamaguchi University Hospital, Ube, Japan
| | - Shuichiro Yasuno
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Osamu Ansai
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryota Hayashi
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yutaka Shimomura
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Pan Y, Lu T, Peng L, Zeng Q, Huang X, Yao X, Wu B, Xiong F. Functional Analysis of Ectodysplasin-A Mutations in X-Linked Nonsyndromic Hypodontia and Possible Involvement of X-Chromosome Inactivation. Stem Cells Int 2021; 2021:7653013. [PMID: 34545288 PMCID: PMC8449729 DOI: 10.1155/2021/7653013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/10/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Mutations of the Ectodysplasin-A (EDA) gene are generally associated with syndrome hypohidrotic ectodermal dysplasia or nonsyndromic tooth agenesis. The influence of EDA mutations on dentinogenesis and odontoblast differentiation has not been reported. The aim of this study was to identify genetic clues for the causes of familial nonsyndromic oligodontia and explore the underlying mechanisms involved, while focusing on the role of human dental pulp stem cells (hDPSCs). MATERIALS AND METHODS Candidate gene sequences were obtained by PCR amplification and Sanger sequencing. Functional analysis was conducted, and the pathogenesis associated with EDA mutations in hDPSCs was investigated to explore the impact of the identified mutation on the phenotype. Capillary electrophoresis (CE) was used to detect X-chromosome inactivation (XCI) in the blood of female carriers. RESULTS In this study, we identified an EDA mutation in a Chinese family: the missense mutation c.1013C>T (Thr338Met). Transfection of hDPSCs with a mutant EDA lentivirus decreased the expression of EDA and dentin sialophosphoprotein (DSPP) compared with transfection of control EDA lentivirus. Mechanistically, mutant EDA inhibited the activation of the NF-κB pathway. The CE results showed that symptomatic female carriers had a skewed XCI with a preferential inactivation of the X chromosome that carried the normal allele. CONCLUSIONS In summary, we demonstrated that EDA mutations result in nonsyndromic tooth agenesis in heterozygous females and that, mechanistically, EDA regulates odontogenesis through the NF-κB signalling pathway in hDPSCs. Due to the large heterogeneity of tooth agenesis, this study provided a genetic basis for individuals who exhibit similar clinical phenotypes.
Collapse
Affiliation(s)
- Yuhua Pan
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ting Lu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ling Peng
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qi Zeng
- Department of Pediatric Dentistry, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiangyu Huang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinchen Yao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, 143 Dongzong Road, Pingshan District, Shenzhen 518118, China
| | - Fu Xiong
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou, Guangdong, China
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Experimental Education/Administration Center, School of Basic Medical Science, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
5
|
Asano N, Yasuno S, Hayashi R, Shimomura Y. Characterization of EDARADD gene mutations responsible for hypohidrotic ectodermal dysplasia. J Dermatol 2021; 48:1533-1541. [PMID: 34219261 DOI: 10.1111/1346-8138.16044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 06/08/2021] [Indexed: 11/27/2022]
Abstract
Hypohidrotic ectodermal dysplasia (HED) is a genetic disorder characterized by hypohidrosis, hypodontia, and hypotrichosis. Autosomal forms of the disease are caused by mutations in either EDAR or EDARADD. To date, the underlying pathomechanisms for HED resulting from EDARADD mutations have not fully been disclosed. In this study, we performed detailed in vitro analyses in order to characterize three dominantly inherited missense mutations, p.D120Y, p.L122R, and p.D123N, and one recessively inherited missense mutation, p.E152K, in the EDARADD gene. Nuclear factor (NF)-κB reporter assays demonstrated that all the mutant EDARADD showed reduction in activation of NF-κB. Importantly, p.D120Y-, p.L122R-, and p.D123N-mutant EDARADD slightly reduced the NF-κB activity induced by wild-type EDARADD in a dominant negative manner. Co-immunoprecipitation assays showed that all of the mutant EDARADD were capable of binding to EDAR and wild-type EDARADD. Additional co-immunoprecipitation assays revealed that p.D120Y-, p.L122R-, and p.D123N-mutant EDARADD markedly prevented the interaction between EDAR and wild-type EDARADD, which further indicated a dominant negative effect by these mutations. Finally, we found that p.D120Y-, p.L122R-, and p.D123N-mutant EDARADD completely lost the ability to bind with TRAF6, while p.E152K-mutant EDARADD showed a mild reduction in the affinity. Our findings will provide crucial information toward unraveling the molecular mechanisms how EDARADD gene mutations cause the disease.
Collapse
Affiliation(s)
- Nobuyuki Asano
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shuichiro Yasuno
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Ryota Hayashi
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yutaka Shimomura
- Department of Dermatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| |
Collapse
|
6
|
Zhang H, Kong X, Ren J, Yuan S, Liu C, Hou Y, Liu Y, Meng L, Zhang G, Du Q, Shen W. A novel EDAR missense mutation identified by whole-exome sequencing with non-syndromic tooth agenesis in a Chinese family. Mol Genet Genomic Med 2021; 9:e1684. [PMID: 33943035 PMCID: PMC8222839 DOI: 10.1002/mgg3.1684] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Background Causative variants in genes of the EDA/EDAR/NF‐κB pathway, such as EDA and EDARADD, have been widely identified in patients with non‐syndromic tooth agenesis (NSTA). However, few cases of NSTA are due to ectodysplasin‐A receptor (EDAR) variants. In this study, we investigated NSTA‐associated variants in Chinese families. Methods Peripheral blood samples were collected from the family members of 24 individuals with NSTA for DNA extraction. The coding region of the EDA gene of the 24 probands was amplified by PCR and sequenced to investigate new variants. Whole‐exome sequencing and Sanger sequencing were then performed for probands without EDA variants detected by PCR. Results A novel missense variant EDAR c.338G>A (p.(Cys113Tyr)) was identified in one family. In addition, three known EDA variants (c.865C>T, c.866G>A, and c.1013C>T) were identified in three families. Genotype–phenotype correlation analysis of EDAR gene mutation showed that NSTA patients were most likely to lose the maxillary lateral incisors and the maxillary central incisors were the least affected. The phenotype of mutations at codon 289 of EDA in NSTA affected patients was characterized by lateral incisors loss, rarely affecting the maxillary first molars. Conclusion A novel EDAR missense variant c.338G>A (p.(Cys113Tyr)) was identified in a family with NSTA, extending the mutation spectrum of the EDAR gene. Genotype–phenotype correlation analyses of EDAR and EDA mutations could help to improve disease status prediction in NSTA families.
Collapse
Affiliation(s)
- Hongyu Zhang
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Xuanting Kong
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Jiabao Ren
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Shuo Yuan
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Chunyan Liu
- Department of Orthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Yan Hou
- Department of Orthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Ye Liu
- Department of Orthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Lingqiang Meng
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Guozhong Zhang
- College of Forensic Medicine, Hebei Medical University, Shijiazhuang, PR China
| | - Qingqing Du
- College of Forensic Medicine, Hebei Medical University, Shijiazhuang, PR China
| | - Wenjing Shen
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| |
Collapse
|
7
|
Li M, Bai YT, Han K, Li XD, Meng J. Knockdown of ectodysplasin-A receptor-associated adaptor protein exerts a tumor-suppressive effect in tongue squamous cell carcinoma cells. Exp Ther Med 2020; 19:3337-3347. [PMID: 32266031 PMCID: PMC7132229 DOI: 10.3892/etm.2020.8578] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 02/10/2020] [Indexed: 02/06/2023] Open
Abstract
Tongue squamous cell carcinoma (TSCC) is a common malignancy in oral cancer with a high mortality and morbidity. The ectodysplasin-A receptor-associated adaptor protein (EDARADD) is a death domain-containing adaptor protein that interacts with the TNF family ligand ectodysplasin A receptor. It is known that EDARADD has an effect on the development of ectodermal derivative tissues, such as hair and teeth. EDARADD expression is also associated with the development of melanoma. However, the role of EDARADD in TSCC remains unknown. The aim of the present investigation was to explore whether EDARADD plays a role in the biological function of TSCC. Immunohistochemistry was used to measure the expression of EDARADD in TSCC tissues and adjacent normal tissue. EDARADD was knocked down in a TSCC cell line in vitro using a specific lentivirus. The expression level of the EDARADD gene and the efficacy of gene knockdown were evaluated by reverse transcription-quantitative PCR, while EDARADD protein expression and the expression levels of Bcl-2, MYC and NF-κBp65 were determined by western blotting. Additionally, MTT assays, colony formation assays and apoptosis assays were carried out to examine the effect of EDARADD knockdown on the TSCC cells. A previous study showed that the majority of the TSCC tissues that were tested had high EDARADD expression. The expression of EDARADD both at mRNA and protein levels was significantly lower (P<0.01) after the gene was knocked down in the CAL27 cells compared with the level in control cells. Downregulation of EDARADD expression inhibited colony formation and proliferation and induced apoptosis of CAL27 cells when compared to control cells (P<0.01). Taken together, these results suggested that EDARADD may be actively involved in the progression of TSCC and that EDARADD may be a novel therapeutic target for the treatment of TSCC.
Collapse
Affiliation(s)
- Meng Li
- Department of Stomatology, Central Hospital of Xuzhou, The Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China.,Department of Oral Medicine, School of Stomatology, Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| | - Yu-Ting Bai
- Department of Stomatology, Central Hospital of Xuzhou, The Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China.,Department of Oral Medicine, School of Stomatology, Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| | - Kun Han
- Department of Stomatology, Central Hospital of Xuzhou, The Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| | - Xiao-Dong Li
- Department of Stomatology, Central Hospital of Xuzhou, The Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| | - Jian Meng
- Department of Stomatology, Central Hospital of Xuzhou, The Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China.,Department of Oral Medicine, School of Stomatology, Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| |
Collapse
|
8
|
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.
Collapse
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.
| | | |
Collapse
|
9
|
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.
Collapse
|
10
|
Okita T, Asano N, Yasuno S, Shimomura Y. Functional studies for a dominant mutation in the
EDAR
gene responsible for hypohidrotic ectodermal dysplasia. J Dermatol 2019; 46:710-715. [DOI: 10.1111/1346-8138.14983] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 05/21/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Tomoko Okita
- Department of Dermatology Yamaguchi University Graduate School of Medicine Ube, Yamaguchi Japan
| | - Nobuyuki Asano
- Department of Dermatology Yamaguchi University Graduate School of Medicine Ube, Yamaguchi Japan
| | - Shuichiro Yasuno
- Department of Dermatology Yamaguchi University Graduate School of Medicine Ube, Yamaguchi Japan
| | - Yutaka Shimomura
- Department of Dermatology Yamaguchi University Graduate School of Medicine Ube, Yamaguchi Japan
| |
Collapse
|
11
|
Rapid Discovery of De Novo Deleterious Mutations in Cattle Enhances the Value of Livestock as Model Species. Sci Rep 2017; 7:11466. [PMID: 28904385 PMCID: PMC5597596 DOI: 10.1038/s41598-017-11523-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 08/23/2017] [Indexed: 01/17/2023] Open
Abstract
In humans, the clinical and molecular characterization of sporadic syndromes is often hindered by the small number of patients and the difficulty in developing animal models for severe dominant conditions. Here we show that the availability of large data sets of whole-genome sequences, high-density SNP chip genotypes and extensive recording of phenotype offers an unprecedented opportunity to quickly dissect the genetic architecture of severe dominant conditions in livestock. We report on the identification of seven dominant de novo mutations in CHD7, COL1A1, COL2A1, COPA, and MITF and exploit the structure of cattle populations to describe their clinical consequences and map modifier loci. Moreover, we demonstrate that the emergence of recessive genetic defects can be monitored by detecting de novo deleterious mutations in the genome of bulls used for artificial insemination. These results demonstrate the attractiveness of cattle as a model species in the post genomic era, particularly to confirm the genetic aetiology of isolated clinical case reports in humans.
Collapse
|