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Kwon HJ, Yoo DW, Yoon JH, Kim N, Kim KH. Missense Variant c.3301C>T (p.R1101W) in von Willebrand Factor A Sequence in a Patient with Recessive Dystrophic Epidermolysis Bullosa Pruriginosa with Compound Heterozygous COL7A1 Variants. Ann Dermatol 2023; 35:S195-S200. [PMID: 38061702 PMCID: PMC10727861 DOI: 10.5021/ad.21.176] [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: 08/26/2021] [Revised: 11/23/2021] [Accepted: 01/12/2022] [Indexed: 12/20/2023] Open
Abstract
Dystrophic epidermolysis bullosa (DEB) pruriginosa is a rare subtype of DEB characterized by multiple, violaceous, and severe pruritic lichenified nodules along with blisters. Here, we report the case of a Korean male who, since the age of 3 years, had multiple pruritic nodules with blisters on both lower extremities. Genetic testing is required to diagnose DEB pruriginosa because its clinical and histologic features are inconclusive. We identified compound heterozygous COL7A1 variants of c.5797C>T (p.R1933*) and c.3301C>T (p.R1101W) in the patient, leading to a diagnosis of recessive DEB pruriginosa. Among the variants identified, c.3301C>T is a novel missense variant that has not been reported previously. This variant is in exon 26, which encodes von Willebrand factor A (vWFA) in collagen type VII. vWFA is known to preserve normal dermal structures by interacting with dermal collagens and basement membranes. Considering that this variant contradicts the general concept that autosomal dominant inheritance is more common and that variants typically occur in the triple helical collagenous domain of COL7A1 in DEB pruriginosa, we focus on the rarity of this case and the possible pathogenic role of the c.3301C>T (p.R1101W) variant.
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Affiliation(s)
- Hyeok-Jin Kwon
- Department of Dermatology, College of Medicine, Dong-A University, Busan, Korea
| | - Dong-Wha Yoo
- Department of Dermatology, College of Medicine, Dong-A University, Busan, Korea
| | - Jung-Ho Yoon
- Department of Dermatology, College of Medicine, Dong-A University, Busan, Korea
| | - Namhee Kim
- Department of Laboratory Medicine, College of Medicine, Dong-A University, Busan, Korea
| | - Ki-Ho Kim
- Department of Dermatology, College of Medicine, Dong-A University, Busan, Korea.
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Kim J, Kim TG, Lee SH, Lee MK, Kim JH, Lee SE, Kim DY, Roh MR, Park CO, Lee JH, Lee MG, Bang D, Oh SH, Chung KY. Centennial History of Yonsei University Dermatology in Korea: 1917 to 2017. Ann Dermatol 2018; 30:513-521. [PMID: 33911472 PMCID: PMC7992467 DOI: 10.5021/ad.2018.30.5.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 03/23/2018] [Indexed: 11/18/2022] Open
Abstract
Yonsei Dermatology celebrated its centennial in 2017, marking 100 years since Kung Sun Oh established the first Department of Dermatology and Urology in Korea in 1917. Following the footsteps of Kung Sun Oh, a pioneer of Korean dermatology, its members united and worked to provide the best medical service and achieve academic milestones in dermatology. Over the past hundred years, Yonsei Dermatology has played a pivotal role in the advancement of medical science and academia in Korea. The main activities of the department include medical care, education, and dermatologic research. Its research activities have encompassed a wide spectrum of dermatologic manifestations from skin immunology and pathology to introduction of newly developed treatment technologies. As Kung Sun Oh was the first Korean professor of dermatology at Severance Medical School and a passionate educator, we continue to serve his will by nurturing medical students and dermatology specialists to serve as global medical leaders. The Kung Sun Oh Memorial Lecture, first hosted in 1977, was the beginning of mutual international academic exchange in the field of dermatology in Korea. The memorial lecture has played a major role in advancing the academic status of Korean dermatological science by inviting distinguished dermatologists from around the world as guest lecturers. Yonsei Dermatology has played a key role in the history of modern medicine and dermatology in Korea over the last 100 years and continues to make an impact.
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Affiliation(s)
- Jihee Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Tae-Gyun Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Si Hyung Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min Kyung Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Hoon Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Eun Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Do Young Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Ryung Roh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ju Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min-Geol Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Dongsik Bang
- Department of Dermatology, Catholic Kwandong University International St. Mary's Hospital, Incheon, Korea
| | - Sang Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kee Yang Chung
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Shi BJ, Zhu XJ, Liu Y, Hao J, Yan GF, Wang SP, Wang XY, Diao QC. Transient bullous dermolysis of the newborn: a novelde novomutation in theCOL7A1gene. Int J Dermatol 2015; 54:438-42. [PMID: 25800346 DOI: 10.1111/ijd.12704] [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] [Indexed: 11/30/2022]
Affiliation(s)
- Bing-Jun Shi
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Xiao-Juan Zhu
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Yi Liu
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Jin Hao
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Guo-Fu Yan
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Su-Ping Wang
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Xiu-Yong Wang
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
| | - Qing-Chun Diao
- Department of Dermatology; Chongqing Hospital of Traditional Chinese Medicine (First People's Hospital of Chongqing City); Chongqing China
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Caminsky NG, Mucaki EJ, Rogan PK. Interpretation of mRNA splicing mutations in genetic disease: review of the literature and guidelines for information-theoretical analysis. F1000Res 2015. [DOI: 10.12688/f1000research.5654.2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The interpretation of genomic variants has become one of the paramount challenges in the post-genome sequencing era. In this review we summarize nearly 20 years of research on the applications of information theory (IT) to interpret coding and non-coding mutations that alter mRNA splicing in rare and common diseases. We compile and summarize the spectrum of published variants analyzed by IT, to provide a broad perspective of the distribution of deleterious natural and cryptic splice site variants detected, as well as those affecting splicing regulatory sequences. Results for natural splice site mutations can be interrogated dynamically with Splicing Mutation Calculator, a companion software program that computes changes in information content for any splice site substitution, linked to corresponding publications containing these mutations. The accuracy of IT-based analysis was assessed in the context of experimentally validated mutations. Because splice site information quantifies binding affinity, IT-based analyses can discern the differences between variants that account for the observed reduced (leaky) versus abolished mRNA splicing. We extend this principle by comparing predicted mutations in natural, cryptic, and regulatory splice sites with observed deleterious phenotypic and benign effects. Our analysis of 1727 variants revealed a number of general principles useful for ensuring portability of these analyses and accurate input and interpretation of mutations. We offer guidelines for optimal use of IT software for interpretation of mRNA splicing mutations.
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Boccaletti V, Zambruno G, Castiglia D, Magnani C, Tognetti E, Fabrizi G, Cortelazzi C, Pagliarello C, Di Nuzzo S. Recessive bullous dermolysis of the newborn in preterm siblings with a missense mutation in type VII collagen. Pediatr Dermatol 2015; 32:e42-7. [PMID: 25639640 DOI: 10.1111/pde.12513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bullous dermolysis of the newborn is a dominant or recessive inherited subtype of dystrophic epidermolysis bullosa characterized by the tendency to spontaneously stop blistering within the first months of life. Here we report two siblings with bullous dermolysis of the newborn who were born prematurely and have a novel recessive mutation, p.Pro2259Leu, in the triple helix domain of type VII collagen. We discuss the possible relationship between genotype and prematurity and clinical manifestations in these patients.
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Caminsky N, Mucaki EJ, Rogan PK. Interpretation of mRNA splicing mutations in genetic disease: review of the literature and guidelines for information-theoretical analysis. F1000Res 2014; 3:282. [PMID: 25717368 PMCID: PMC4329672 DOI: 10.12688/f1000research.5654.1] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/10/2014] [Indexed: 12/14/2022] Open
Abstract
The interpretation of genomic variants has become one of the paramount challenges in the post-genome sequencing era. In this review we summarize nearly 20 years of research on the applications of information theory (IT) to interpret coding and non-coding mutations that alter mRNA splicing in rare and common diseases. We compile and summarize the spectrum of published variants analyzed by IT, to provide a broad perspective of the distribution of deleterious natural and cryptic splice site variants detected, as well as those affecting splicing regulatory sequences. Results for natural splice site mutations can be interrogated dynamically with Splicing Mutation Calculator, a companion software program that computes changes in information content for any splice site substitution, linked to corresponding publications containing these mutations. The accuracy of IT-based analysis was assessed in the context of experimentally validated mutations. Because splice site information quantifies binding affinity, IT-based analyses can discern the differences between variants that account for the observed reduced (leaky) versus abolished mRNA splicing. We extend this principle by comparing predicted mutations in natural, cryptic, and regulatory splice sites with observed deleterious phenotypic and benign effects. Our analysis of 1727 variants revealed a number of general principles useful for ensuring portability of these analyses and accurate input and interpretation of mutations. We offer guidelines for optimal use of IT software for interpretation of mRNA splicing mutations.
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Affiliation(s)
- Natasha Caminsky
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, ON, N6A 2C1, Canada
| | - Eliseos J Mucaki
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, ON, N6A 2C1, Canada
| | - Peter K Rogan
- Departments of Biochemistry and Computer Science, Western University, London, ON, N6A 2C1, Canada
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Lee SH, Kim SE, Noh EB, Oh SW, Kim SC. Novel deletion mutation (c.3717del5) in COL7A1 in a patient with recessive dystrophic epidermolysis bullosa. J Dermatol 2012; 40:59-61. [PMID: 22974128 DOI: 10.1111/j.1346-8138.2012.01666.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cho JW, Nakano H, Lee KS. Type VII collagen gene mutations (c.8569G>T and c.4879G>A) result in the moderately severe phenotype of recessive dystrophic epidermolysis bullosa in a Korean patient. J Korean Med Sci 2009; 24:256-61. [PMID: 19399267 PMCID: PMC2672125 DOI: 10.3346/jkms.2009.24.2.256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Accepted: 06/22/2008] [Indexed: 11/20/2022] Open
Abstract
Dystrophic epidermolysis bullosa (DEB) are caused by mutations in the COL7A1 gene, which encodes type VII collagen. Even though more than 500 different COL7A1 mutations have been identified in DEB, it still remains to be under-investigated. To investigate the mutation of COL7A1 in moderately severe phenotype of recessive DEB (RDEB) in a Korean patient, the mutation detection strategy was consisted of polymerase chain reaction (PCR) amplification of genomic DNA, followed by heteroduplex analysis, nucleotide sequencing of the PCR products demonstrating altered mobility. In this study, we found that one mutation (c.8569G>T) was detected within exon 116. The mutation of c.8569G>T in exon 116 changed the GAG (Glu) to TAG, eventually resulted in premature termination of type VII collagen polypeptide. Furthermore the mother did not have the mutation c.8569G>T in exon 116. The other novel mutation (c.4879G>A) was detected within exon 51 of both patient and mother, thereby resulting in changing valine (Val) to isoleucine (Ile) in type VII collagen polypeptide. Taken together, in this study we identified compound heterozygosity for COL7A1 mutations (c.8569G>T and c.4879G>A) in moderately severe RDEB in a Korean patient. We hope that this data contribute to the expanding database on COL7A1 mutations in DEB.
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Affiliation(s)
- Jae-We Cho
- Department of Dermatology, Keimyung University, School of Medicine, Daegu, Korea
| | - Hajime Nakano
- Department of Dermatology, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Kyu-Suk Lee
- Department of Dermatology, Keimyung University, School of Medicine, Daegu, Korea
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