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Huang H, Chen M, Liu X, Xiong X, Zhou L, Su Z, Lu Y, Liang B. A novel variant in the GJB6 gene in a large Chinese family with a unique phenotype of Clouston syndrome. Front Med 2023; 17:330-338. [PMID: 36645631 DOI: 10.1007/s11684-022-0933-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 04/21/2022] [Indexed: 01/17/2023]
Abstract
Clouston syndrome (OMIM #129500), also known as hidrotic ectodermal dysplasia type 2, is a rare autosomal dominant skin disorder. To date, four mutations in the GJB6 gene, G11R, V37E, A88V, and D50N, have been confirmed to cause this condition. In previous studies, the focus has been mainly on gene sequencing, and there has been a lack of research on clinical manifestations and pathogenesis. To confirm the diagnosis of this pedigree at the molecular level and summarize and analyse the clinical phenotype of patients and to provide a basis for further study of the pathogenesis of the disease, we performed whole-exome and Sanger sequencing on a large Chinese Clouston syndrome pedigree. Detailed clinical examination included histopathology, hair microscopy, and scanning electron microscopy. We found a novel heterozygous missense variant (c.134G>C:p.G45A) for Clouston syndrome. We identified a new clinical phenotype involving all nail needling pain in all patients and found a special honeycomb hole structure in the patients' hair under scanning electron microscopy. Our data reveal that a novel variant (c.134G>C:p.G45A) plays a likely pathogenic role in this pedigree and highlight that genetic testing is necessary for the diagnosis of Clouston syndrome.
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Affiliation(s)
- Hequn Huang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230000, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230000, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, 230000, China
| | - Mengyun Chen
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230000, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230000, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, 230000, China
| | - Xia Liu
- Huai'an District Skin Disease Prevention and Treatment Hospital, Huai'an, 223000, China
| | - Xixi Xiong
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Lanbo Zhou
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Zhonglan Su
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Yan Lu
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210000, China.
| | - Bo Liang
- Institute of Dermatology and Department of Dermatology, the First Affiliated Hospital, Anhui Medical University, Hefei, 230000, China.
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, 230000, China.
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, 230000, China.
- Department of Clinical Laboratory, The First Affiliated Hospital, Anhui Medical University, Hefei, 230000, China.
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Liao MY, Peng H, Li LN, Yang T, Xiong SY, Ye XY. Hidrotic ectodermal dysplasia in a Chinese pedigree: A case report. World J Clin Cases 2023; 11:1403-1409. [PMID: 36926140 PMCID: PMC10013106 DOI: 10.12998/wjcc.v11.i6.1403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/26/2022] [Accepted: 02/07/2023] [Indexed: 02/23/2023] Open
Abstract
BACKGROUND We report on a large family of Chinese Han individuals with hidrotic ectodermal dysplasia (HED) with a variation in GJB6 (c.31G>A). The patients in the family had a triad of clinical manifestations of varying degrees. Although the same variation locus have been reported, the clinical manifestations of this family were difficult to distinguish from those of congenital thick nail disorder, palmoplantar keratosis, and congenital hypotrichosis.
CASE SUMMARY This investigation involved a large Chinese family of 46 members across five generations and included 12 patients with HED. The proband (IV4) was a male patient with normal sweat gland function and dental development, no skeletal dysplasia, no cognitive disability, and no hearing impairments. His parents were not consanguineously married. Physical examination of the proband revealed thinning hair and thickened grayish-yellow nails and toenails with some longitudinal ridges, in addition to mild bilateral palmoplantar hyperkeratosis. GJB6, GJB2, and GJA1 have been reported to be the causative genes of HED; therefore, we subjected the patient’s samples to Sanger sequencing of these three genes. In this family, the variation locus was at GJB6 (c.31G>A, p.Gly11Arg). Overexpression vectors of wild-type GJB6 and its variants were established and transfected into HaCaT cell models, and the related mRNA and protein expression changes were determined using real-time reverse transcriptase-polymerase chain reaction and Western blot, respectively.
CONCLUSION We report another HED phenotype associated with GJB6 variations, which can help clinicians to diagnose HED despite its varying presentations.
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Affiliation(s)
- Ming-Yi Liao
- Department of Dermatology, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China
| | - Hui Peng
- Department of Dermatology, Ganzhou People's Hospital, Ganzhou 341000, Jiangxi Province, China
| | - Long-Nian Li
- Department of Dermatology, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China
| | - Tao Yang
- Department of Dermatology, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China
| | - Shi-Yin Xiong
- Department of Dermatology, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China
| | - Xiao-Ying Ye
- Department of Dermatology, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China
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Deng W, Zhou Z, Leng B, Zeng X, Shen Z, Hong Y. Reconstruction of a nail bed with double-layer artificial dermis for a pincer nail: A case report and literature review. Front Surg 2023; 9:1047171. [PMID: 36700009 PMCID: PMC9869056 DOI: 10.3389/fsurg.2022.1047171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 12/02/2022] [Indexed: 01/12/2023] Open
Abstract
Background A pincer nail (PN) is a type of nail deformity. Although it is a minor ailment, it can cause intractable pain, affecting daily work and life. Currently, there is no standard invention for PN. The main purpose of treatment is to correct the curvature of the nail, so we apply double-layer artificial dermis (DLAD), a novel treatment, for PN according to this aim. Case presentation A 40-year-old man suffering from PN was treated with DLAD. After 1 year of follow-up, the patient's great toenail plate of the right foot was completely grown out. His pain was relieved, and the curvature of the toenail was corrected. Conclusion The innovative method of using DLAD to fill the ingrown nail bed not only solves the problem of recurrent pincer nail deformity but also restores the original appearance of the toenail. It suggested that this simple procedure can be widely applied in clinical practice.
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Affiliation(s)
- Weicong Deng
- Department of Hand Microvascular Surgery, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, China
| | - Zelin Zhou
- The First Clinical Medical School, The First Clinical Medical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bo Leng
- Department of Hand Microvascular Surgery, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, China
| | - Xinming Zeng
- Department of Hand Microvascular Surgery, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, China
| | - Zi Shen
- The First Clinical Medical School, The First Clinical Medical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yongchang Hong
- Department of Hand Microvascular Surgery, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, China,Correspondence: Yongchang Hong
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Huang C, Huang R, Yu M, Guo W, Zhao Y, Li R, Zhu Z. Pincer Nail Deformity: Clinical Characteristics, Causes, and Managements. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2939850. [PMID: 32382542 PMCID: PMC7180426 DOI: 10.1155/2020/2939850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/27/2020] [Indexed: 11/18/2022]
Abstract
A pincer nail is a common nail deformity of toenails and is characterized by nail thickening and nail plate deformation. It often causes severe pain for patients. We perform a thorough literature review and an additional review of pertinent clinical cases, aiming to provide a comprehensive review of the etiology, pathogenesis, clinical classification, differential diagnosis, and treatment of pincer nail deformity (PND). Understanding the clinical characteristics and treatment progress of a pincer nail will provide clinicians with comprehensive and evidence-based information about PND, thus allowing the selection of an appropriate treatment according to the patient's request and the clinical manifestations of PND, which should maximize patient satisfaction.
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Affiliation(s)
- Chao Huang
- Department of Hand Surgery, The Second Hospital of Jilin University, No. 218, Lane Ziqiang, Nanguan District, Changchun City, Jilin 130041, China
| | - Rui Huang
- Department of Neurosurgery, The Second Hospital of Jilin University, No. 218, Lane Ziqiang, Nanguan District, Changchun City, Jilin 130041, China
| | - Min Yu
- Department of Anesthesiology, Chungking General Hospital, 69 Xingguang Avenue, Yubei District, Chongqing 401121, China
| | - Wenlai Guo
- Department of Hand Surgery, The Second Hospital of Jilin University, No. 218, Lane Ziqiang, Nanguan District, Changchun City, Jilin 130041, China
| | - Ying Zhao
- Department of Hand Surgery, The Second Hospital of Jilin University, No. 218, Lane Ziqiang, Nanguan District, Changchun City, Jilin 130041, China
| | - Rui Li
- Department of Hand Surgery, The Second Hospital of Jilin University, No. 218, Lane Ziqiang, Nanguan District, Changchun City, Jilin 130041, China
| | - Zhe Zhu
- Department of Hand Surgery, The Second Hospital of Jilin University, No. 218, Lane Ziqiang, Nanguan District, Changchun City, Jilin 130041, China
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Stylianaki EA, Karpouzis A, Tripsianis G, Veletza S. Assessment of Gap Junction Protein Beta-2 rs3751385 Gene Polymorphism in Psoriasis Vulgaris. J Clin Med Res 2019; 11:642-650. [PMID: 31523338 PMCID: PMC6731047 DOI: 10.14740/jocmr3845] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/25/2019] [Indexed: 02/05/2023] Open
Abstract
Background Gap junction protein beta 2 (GJB2) upregulation in psoriasis transcriptome analysis as well as connexin 26 (Cx26, encoded by GJB2) expression upregulation in psoriatic plaques has already been substantiated. GJB2 rs72474224 and rs3751385 have been correlated with psoriasis vulgaris incidence in Chinese populations. Here we study the effect of rs3751385 in patients suffering from psoriasis vulgaris in a Caucasian Greek population at the prefecture of Thrace in Northern Greece. Methods One hundred and seventy-three (111 males and 62 females) psoriatic patients (108 were of early-onset psoriasis) and 171 matched controls were included in the study. Genomic DNA was extracted from peripheral blood leukocytes and genotyping was carried out by polymerase chain reaction-restriction-fragment length polymorphism (PCR-RFLP). Results A statistically significant lower frequency of C/T genotype in late-onset male psoriasis vulgaris (P = 0.029) as well as of T allele in female early-onset psoriasis vulgaris (P = 0.049) were ascertained. Conclusions On condition that all other genetic or environmental factors remain stable, the existence and possible interaction between GJB2 rs3751385 C and T alleles in male psoriatic patients may be considered as protective gene component against late-onset psoriasis appearance, while presence of the T allele in female might block the histogenetic mechanisms of early-onset psoriasis lesions.
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Affiliation(s)
- Elli-Anna Stylianaki
- Department of Biology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Anthony Karpouzis
- Department of Dermatology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Gregory Tripsianis
- Department of Medical Statistics, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Stavroula Veletza
- Department of Biology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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Sukakul T, Yang H, Onoufriadis A, Hsu C, McGrath JA. Pterygium and thinning of nails as an unusual manifestation in Clouston syndrome. J Dermatol 2019; 46:e329-e330. [DOI: 10.1111/1346-8138.14867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thanisorn Sukakul
- Department of Dermatology Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand
| | - Hsing‐San Yang
- Department of Dermatology National Cheng Kung University Hospital National Cheng Kung University Tainan Taiwan
| | | | - Chao‐Kai Hsu
- Department of Dermatology National Cheng Kung University Hospital National Cheng Kung University Tainan Taiwan
- Institute of Clinical Medicine College of Medicine National Cheng Kung University Tainan Taiwan
| | - John A. McGrath
- St John's Institute of Dermatology King's College London Guy's Hospital London UK
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Shi X, Li D, Chen M, Liu Y, Yan Q, Yu X, Zhu Y, Li Y. GJB6 mutation A88V for hidrotic ectodermal dysplasia in a Chinese family. Int J Dermatol 2019; 58:1462-1465. [PMID: 30620052 PMCID: PMC6905398 DOI: 10.1111/ijd.14341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 08/05/2018] [Accepted: 11/23/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaofeng Shi
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Dongya Li
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Min Chen
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yichen Liu
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Qi Yan
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xianqiu Yu
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yan Zhu
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yumei Li
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
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Yang R, Hu ZL, Kong QT, Li WW, Zhang LL, Du X, Huang SY, Xia XY, Sang H. A known mutation in GJB6 in a large Chinese family with hidrotic ectodermal dysplasia. J Eur Acad Dermatol Venereol 2016; 30:1362-5. [PMID: 27137747 DOI: 10.1111/jdv.13600] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 12/16/2015] [Indexed: 12/18/2022]
Affiliation(s)
- R. Yang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - ZL. Hu
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - QT. Kong
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - WW. Li
- Department of Reproduction and Genetics; Institute of Laboratory Medicine; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - LL. Zhang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - X. Du
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - SY. Huang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - XY. Xia
- Department of Reproduction and Genetics; Institute of Laboratory Medicine; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - H. Sang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
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