1
|
Curtis KL, Echeandia-Francis C, Falotico JM, Luo A, Qiu Y, Grover C, Piraccini BM, Choate KA, Lipner SR. Retrospective analysis of nail findings in the National Registry for Ichthyosis and Related Disorders database. J Am Acad Dermatol 2024:S0190-9622(24)02819-6. [PMID: 39278313 DOI: 10.1016/j.jaad.2024.08.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/01/2024] [Accepted: 08/19/2024] [Indexed: 09/18/2024]
Affiliation(s)
| | | | | | - Angela Luo
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut
| | - Yuqing Qiu
- Department of Population Health Sciences, Weill Cornell Medicine, New York, New York
| | - Chander Grover
- University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India
| | - Bianca Maria Piraccini
- Dermatology Unit, IRCCS Azienda Ospedaliero, Universitaria di Bologna, Bologna, Italy; Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Keith A Choate
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut; Department of Genetics, Yale University School of Medicine, New Haven, Connecticut; Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Shari R Lipner
- Department of Dermatology, Weill Cornell Medicine, New York, New York.
| |
Collapse
|
2
|
Zalewska-Janowska A, Reich A. Inherited ichthyoses patients: Individualized care and support urgently needed. J Eur Acad Dermatol Venereol 2024; 38:1683-1684. [PMID: 39177309 DOI: 10.1111/jdv.20220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 08/24/2024]
Affiliation(s)
- Anna Zalewska-Janowska
- Psychodermatology Department, Chair of Pulmonology, Rheumatology and Clinical Immunology, Medical University of Lodz, Lodz, Poland
| | - Adam Reich
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszów, Poland
| |
Collapse
|
3
|
Pan C, Wang C, Zhao Y, Bo T, Han L, Yao D, Wang Y, Wang X, Shi L, Zhao A, Cao Q, Chen F, He W, Ye Y, Zhang S, Li M. Superior COL7A1 and TGM1 gene expression in difficult-to-transfect skin cell mediated by highly branched poly(β-amino esters) through stepwise fractionation. J Control Release 2024; 370:82-94. [PMID: 38643938 DOI: 10.1016/j.jconrel.2024.04.030] [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: 11/29/2023] [Revised: 03/24/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
Delivering functional gene into targeted skin cells or tissues to modulate the genes expression, has the potential to treat various hereditary cutaneous disorders. Nevertheless, the lack of safe and effective gene delivery vehicles greatly limits the clinical translation of gene therapy for inherited skin diseases. Herein, we developed a facile elution fractionation strategy to isolate eight HPAEs with Mw ranging from 7.6 to 131.8 kg/mol and Đ < 2.0 from the one crude HPAE23.7k, and investigated the expression efficiency for TGM1 and COL7A1 plasmids. Gene transfection results revealed that the intermediate MW HPAEs, HPAE20.6k, exhibited the highest gene transfection efficiency (46.4%) and the strongest mean fluorescence intensity (143,032 RLU), compared to other isolated components and the crude product. Importantly, best-performing isolated HPAE effectively delivered COL7A1 (15,974 bp) and TGM1 (7181 bp) plasmids, promoting the efficient expression of type VII collagen (C7) and transglutaminase-1 proteins in cutaneous cells. Our study establishes a straightforward step-by-step elution fractionation strategy for the development of HPAEs gene delivery vectors, expediting their clinical translation in inherited skin diseases.
Collapse
Affiliation(s)
- Chaolan Pan
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Chenfei Wang
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China.
| | - Yitong Zhao
- School of Medicine, Anhui University of Science and Technology, Huainan, Anhui 232000, China
| | - Tao Bo
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Liping Han
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China; Department of Blood Transfusion, Huashan Hospital, Fudan University, Shanghai, China
| | - Dingjin Yao
- Shanghai EditorGene Technology Co., Ltd, Shanghai, 200000, China
| | - Yumeng Wang
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Xiaoxiao Wang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Linjing Shi
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Anqi Zhao
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Qiaoyu Cao
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Fuying Chen
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Wei He
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Ying Ye
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Si Zhang
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
| | - Ming Li
- Department of Dermatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China.
| |
Collapse
|
4
|
Frommherz L, Giehl K, Hofmann J, Huebner S, Kiekbusch K, Sabkova T, Süßmuth K, Alter S, Tantcheva-Poór I, Ott H, Fischer J, Has C. Epidermolytic ichthyosis: Clinical spectrum and burden of disease in a large German cohort. J Eur Acad Dermatol Venereol 2024. [PMID: 38741524 DOI: 10.1111/jdv.20096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/20/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND Keratinopathic ichthyoses are a group of hereditary skin disorders caused by pathogenic variants in keratin genes such as KRT1, KRT2 and KRT10, resulting in conditions such as epidermolytic ichthyosis (EI), autosomal-recessive EI, superficial EI and epidermal nevus. Case reports highlight the diversity of clinical manifestations, but only limited information exists regarding the quality of life and burden of disease. OBJECTIVES The objective of this study was to assess the clinical spectrum, genotype-phenotype correlations and burden of disease in patients with epidermolytic ichthyosis in Germany. METHODS We conducted an observational study involving 48 patients diagnosed with EI. Evaluations included the severity of skin involvement using the Investigator's Global Assessment (IGA), the modified Ichthyosis Area Severity Index (mIASI) and complications. The burden of disease was evaluated using the Dermatology Life Quality Index (DLQI) or the Children's Dermatology Life Quality Index (cDLQI). RESULTS Based on clinical features, mIASI and IGA, EI can be categorized into localized, intermediate and severe forms. Patients with keratin 1 mutations tended to have severe EI, while the three forms were evenly distributed in those with keratin 10 mutations. The study highlights that around half of the patients with EI experienced itch and severe pain. Quality of life was affected, with daily life restrictions of 78% due to care and therapies. Reimbursement for moisturizing ointments by health insurance was insufficient for one-quarter of cases. CONCLUSIONS The results emphasize the need for targeted interventions and comprehensive care strategies to enhance the quality of life for affected individuals.
Collapse
Affiliation(s)
- Leonie Frommherz
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Kathrin Giehl
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Josephine Hofmann
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Stefanie Huebner
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Kirstin Kiekbusch
- German Support Group for Ichthyosis, Mittenwalde OT Brusendorf, Mittenwalde, Germany
| | - Teodora Sabkova
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Kira Süßmuth
- Department of Dermatology and Allergology, Helios Klinikum Berlin-Buch, Berlin, Germany
| | - Svenja Alter
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Iliana Tantcheva-Poór
- Department of Dermatology and Venereology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Hagen Ott
- Department of Pediatric Dermatology, Center for Rare Congenital Skin Diseases, Children's Hospital Auf der Bult, Hanover, Germany
| | - Judith Fischer
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cristina Has
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| |
Collapse
|
5
|
Severino-Freire M, Granier Tournier C, Chiaverini C, Audouze A, Morice-Picard F, Texier H, Dreyfus I, Bing-Lecointe AC, Mallet S, Bodemer C, Fischer J, Jonca N, Mazereeuw-Hautier J. French national protocol for the management of congenital ichthyosis. Ann Dermatol Venereol 2024; 151:103247. [PMID: 38513308 DOI: 10.1016/j.annder.2024.103247] [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: 02/23/2023] [Accepted: 09/27/2023] [Indexed: 03/23/2024]
Abstract
Congenital ichthyoses (CI) comprise a heterogeneous group of monogenic genetic skin diseases characterized by diffuse scaling, often associated with skin inflammation. Diagnosis of the individual form of ichthyosis is complex and is guided by clinical expertise. CI usually has a major impact on quality of life (QOL) and thus requires lifelong treatment. To date, there are no curative therapies, although various symptomatic treatment options exist. The present protocol for the management of CI has been drawn up in accordance with the recommendations published in 2012 by the French National Authority for Health, based on a literature review, with the help and validation of members of the French network for rare skin diseases (FIMARAD). It provides a summary of evidence and expert-based recommendations and is intended to help clinicians with the management of these rare and often complex diseases.
Collapse
Affiliation(s)
- M Severino-Freire
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - C Granier Tournier
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - C Chiaverini
- University Hospital Center of Nice, Department of Dermatology, Archet 2 Hospital, CS 23079, 06202 Nice Cedex 3, France
| | - A Audouze
- Association Ichtyose France, 37 rue du Golf, 03700 Bellerive sur Allier, France
| | - F Morice-Picard
- Department of Dermatology, University Hospital Center of Bordeaux - Hôpital Saint André, 1 Rue Jean Burguet, 33075 Bordeaux Cedex, France
| | - H Texier
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - I Dreyfus
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France
| | - A-C Bing-Lecointe
- Hospital Annecy-Genevois site Annecy, 1 Avenue De L'hôpital, 74370 Annecy, France
| | - S Mallet
- Department of Dermatology, University Hospital Center of Marseille, 264 rue Saint-Pierre, 13005 Marseille, France
| | - C Bodemer
- Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), Hôpital Necker-Enfants Malades, AP-HP, 149 Rue de Sèvres, 75743 Paris cedex 15, France
| | - J Fischer
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 153, 79110 Freiburg, Germany
| | - N Jonca
- University Hospital Center of Toulouse, Hôpital Purpan, Cell Biology and Cytology Laboratory, Institut Fédératif de Biologie, Toulouse F-31300, France
| | - J Mazereeuw-Hautier
- University Hospital Center of Toulouse, Reference Centre for Rare Skin Diseases, Department of Dermatology, Larrey Hospital, 24, Chemin de Pouvourville, TSA 30030 Toulouse Cedex 9, France.
| |
Collapse
|
6
|
Liu Y, Mo R, Chen Z, Yang Y. Novel variants in ABCA12 cause erythrokeratodermia variabilis. Br J Dermatol 2024; 190:454. [PMID: 38085035 DOI: 10.1093/bjd/ljad494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/26/2023] [Accepted: 12/04/2023] [Indexed: 02/18/2024]
Abstract
We present a patient clinically diagnosed with erythrokeratodermia variabilis harbored compound heterozygous variants in the ABCA12 gene, including an unreported c.3653A>G variant and c.7247C>T, both of which were predicted to be pathogenic.
This finding provide evidence that ABCA12 pathogenic variants were associated with recessive erythrokeratodermia variabilis, an otherwise dominant disorder.
This case highlighted the clinical diversity of ABCA12 variants and the genetic heterogeneity underlying the erythrokeratodermia variabilis, which is significant for genetic counseling and prenatal diagnosis.
Collapse
Affiliation(s)
- Yihe Liu
- Genetic Skin Disease Center, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Ran Mo
- Genetic Skin Disease Center, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Zhiming Chen
- Genetic Skin Disease Center, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Yong Yang
- Genetic Skin Disease Center, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| |
Collapse
|
7
|
Chen G, Goldust M, Choate KA, Cohen JM. Associations between ichthyosis and mood disorders: A case-control study in the All of Us Research Program. J Am Acad Dermatol 2024; 90:439-440. [PMID: 37863200 DOI: 10.1016/j.jaad.2023.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/08/2023] [Accepted: 10/09/2023] [Indexed: 10/22/2023]
Affiliation(s)
- Gloria Chen
- Yale School of Medicine, New Haven, Connecticut
| | - Mohamad Goldust
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut
| | - Keith A Choate
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut; Department of Genetics, Yale University School of Medicine, New Haven, Connecticut; Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Jeffrey M Cohen
- Department of Dermatology, Yale School of Medicine, New Haven, Connecticut; Section of Biomedical Informatics and Data Science, Yale School of Medicine, New Haven, Connecticut.
| |
Collapse
|
8
|
Takeichi T, Hamada T, Yamamoto M, Ito Y, Kawaguchi A, Kobashi H, Yoshikawa T, Koga H, Ishii N, Nakama T, Muro Y, Ogi T, Akiyama M. Patients with keratinization disorders due to ABCA12 variants showing pityriasis rubra pilaris phenotypes. J Dermatol 2024; 51:101-105. [PMID: 37752865 DOI: 10.1111/1346-8138.16967] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/17/2023] [Accepted: 09/01/2023] [Indexed: 09/28/2023]
Abstract
Pathogenic variants in ABCA12 are important causative genetic defects for autosomal recessive congenital ichthyoses (ARCI), which include congenital ichthyosiform erythroderma (CIE), harlequin ichthyosis, and lamellar ichthyosis. In addition, pathogenic variants in ABCA12 are known to cause a localized nevoid form of CIE due to recessive mosaicism. We previously reported siblings who carried an ABCA12 variant but did not show a "congenital" phenotype. They were considered to have pityriasis rubra pilaris (PRP). Here, we present a further patient with ABCA12 variants whose phenotype was not congenital ichthyosis, in an independent family. Notably, these three patients had geographic unaffected areas. Such areas are not usually found in patients with ARCI who have ABCA12 variants, suggesting mild phenotypes for these patients. Interestingly, the histological features of the ichthyotic lesions in these patients resembled those of PRP. All three patients had homozygous pathogenic missense variants in ABCA12. Our findings expand the phenotypic spectrum of patients with ABCA12 variants.
Collapse
Affiliation(s)
- Takuya Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takahiro Hamada
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
| | - Mayuko Yamamoto
- Department of Dermatology, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Yasutoshi Ito
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Aya Kawaguchi
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
| | - Haruka Kobashi
- Department of Dermatology, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Takenori Yoshikawa
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Koga
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
- Kurume University Institute of Cutaneous Cell Biology, Kurume, Japan
| | - Norito Ishii
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
- Kurume University Institute of Cutaneous Cell Biology, Kurume, Japan
| | - Takekuni Nakama
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
- Kurume University Institute of Cutaneous Cell Biology, Kurume, Japan
| | - Yoshinao Muro
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoo Ogi
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| |
Collapse
|
9
|
Park JS, Saeidian AH, Youssefian L, Kondratuk KE, Pride HB, Vahidnezhad H, Uitto J. Inherited ichthyosis as a paradigm of rare skin disorders: Genomic medicine, pathogenesis, and management. J Am Acad Dermatol 2023; 89:1215-1226. [PMID: 35963288 DOI: 10.1016/j.jaad.2022.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 11/26/2022]
Abstract
Great advances have been made in the field of heritable skin disorders using next-generation sequencing (NGS) technologies (ie, whole-genome sequencing, whole-exome sequencing, whole-transcriptome sequencing, and disease-targeted multigene panels). When NGS first became available, the cost and lack of access to these technologies were limiting factors; however, with decreasing sequencing costs and the expanding knowledge base of genetic skin diseases, fundamental awareness of NGS has become prudent. The heritable ichthyoses comprise a genotypically and phenotypically heterogeneous group of monogenic keratinization disorders characterized by persistent scaling, with at least 55 distinct genes currently implicated in causing nonsyndromic and syndromic forms of the disease. By providing a simplified overview of available NGS techniques and applying them in the context of ichthyosis, one of the most common genodermatoses, we hope to encourage dermatologists to offer, when appropriate, genetic testing earlier in patients with unsolved presentations. With the aid of NGS, dermatologists can provide diagnostic certainty in cases of suspected genodermatoses and offer potentially life-changing genome-guided and targeted therapies as they become available.
Collapse
Affiliation(s)
- Jason S Park
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Howard B Pride
- Department of Dermatology, Geisinger Medical Center, Danville, Pennsylvania
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
| |
Collapse
|
10
|
King AD, Deirawan H, Klein PA, Dasgeb B, Dumur CI, Mehregan DR. Next-generation sequencing in dermatology. Front Med (Lausanne) 2023; 10:1218404. [PMID: 37841001 PMCID: PMC10570430 DOI: 10.3389/fmed.2023.1218404] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 09/04/2023] [Indexed: 10/17/2023] Open
Abstract
Over the past decade, Next-Generation Sequencing (NGS) has advanced our understanding, diagnosis, and management of several areas within dermatology. NGS has emerged as a powerful tool for diagnosing genetic diseases of the skin, improving upon traditional PCR-based techniques limited by significant genetic heterogeneity associated with these disorders. Epidermolysis bullosa and ichthyosis are two of the most extensively studied genetic diseases of the skin, with a well-characterized spectrum of genetic changes occurring in these conditions. NGS has also played a critical role in expanding the mutational landscape of cutaneous squamous cell carcinoma, enhancing our understanding of its molecular pathogenesis. Similarly, genetic testing has greatly benefited melanoma diagnosis and treatment, primarily due to the high prevalence of BRAF hot spot mutations and other well-characterized genetic alterations. Additionally, NGS provides a valuable tool for measuring tumor mutational burden, which can aid in management of melanoma. Lastly, NGS demonstrates promise in improving the sensitivity of diagnosing cutaneous T-cell lymphoma. This article provides a comprehensive summary of NGS applications in the diagnosis and management of genodermatoses, cutaneous squamous cell carcinoma, melanoma, and cutaneous T-cell lymphoma, highlighting the impact of NGS on the field of dermatology.
Collapse
Affiliation(s)
- Andrew D. King
- Department of Dermatology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Hany Deirawan
- Department of Dermatology, Wayne State University School of Medicine, Detroit, MI, United States
| | | | - Bahar Dasgeb
- Department of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, United States
| | - Catherine I. Dumur
- Bernhardt Laboratories, Sonic Healthcare Anatomic Pathology Division, Jacksonville, FL, United States
| | - Darius R. Mehregan
- Department of Dermatology, Wayne State University School of Medicine, Detroit, MI, United States
| |
Collapse
|
11
|
Zaver SA, Sarkar MK, Egolf S, Zou J, Tiwaa A, Capell BC, Gudjonsson JE, Simpson CL. Targeting SERCA2 in organotypic epidermis reveals MEK inhibition as a therapeutic strategy for Darier disease. JCI Insight 2023; 8:e170739. [PMID: 37561594 PMCID: PMC10561730 DOI: 10.1172/jci.insight.170739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 08/08/2023] [Indexed: 08/12/2023] Open
Abstract
Mutation of the ATP2A2 gene encoding sarco-endoplasmic reticulum calcium ATPase 2 (SERCA2) was linked to Darier disease more than 2 decades ago; however, there remain no targeted therapies for this disorder causing recurrent skin blistering and infections. Since Atp2a2-knockout mice do not phenocopy its pathology, we established a human tissue model of Darier disease to elucidate its pathogenesis and identify potential therapies. Leveraging CRISPR/Cas9, we generated human keratinocytes lacking SERCA2, which replicated features of Darier disease, including weakened intercellular adhesion and defective differentiation in organotypic epidermis. To identify pathogenic drivers downstream of SERCA2 depletion, we performed RNA sequencing and proteomics analysis. SERCA2-deficient keratinocytes lacked desmosomal and cytoskeletal proteins required for epidermal integrity and exhibited excess MAPK signaling, which modulates keratinocyte adhesion and differentiation. Immunostaining patient biopsies substantiated these findings, with lesions showing keratin deficiency, cadherin mislocalization, and ERK hyperphosphorylation. Dampening ERK activity with MEK inhibitors rescued adhesive protein expression and restored keratinocyte sheet integrity despite SERCA2 depletion or chemical inhibition. In sum, coupling multiomic analysis with human organotypic epidermis as a preclinical model, we found that SERCA2 haploinsufficiency disrupts critical adhesive components in keratinocytes via ERK signaling and identified MEK inhibition as a treatment strategy for Darier disease.
Collapse
Affiliation(s)
- Shivam A. Zaver
- Division of Dermatology, Department of Medicine, and
- Medical Scientist Training Program, University of Washington, Seattle, Washington, USA
| | - Mrinal K. Sarkar
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - Shaun Egolf
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Jonathan Zou
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Afua Tiwaa
- Division of Dermatology, Department of Medicine, and
| | - Brian C. Capell
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | | | - Cory L. Simpson
- Division of Dermatology, Department of Medicine, and
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington, USA
| |
Collapse
|
12
|
Shearer Z, White G, Steed JZ, Brown C, Venable T, Baber M. A novel combination of mutations leading to congenital ichthyosis and ichthyosis vulgaris. Clin Case Rep 2023; 11:e7910. [PMID: 37736478 PMCID: PMC10509338 DOI: 10.1002/ccr3.7910] [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: 04/13/2023] [Revised: 08/11/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
Coexistence of TGM1 and FLG mutations in a newborn with congenital ichthyosis is not well described in the literature. Early genetic testing and counseling are crucial for accurate diagnosis and appropriate management. Further exploration of associated problems, including hearing loss and developmental delay, is warranted in patients with these mutations.
Collapse
Affiliation(s)
- Zackary Shearer
- University of Arkansas for Medical SciencesLittle RockArkansasUSA
| | - Gwenevere White
- University of Arkansas for Medical SciencesLittle RockArkansasUSA
| | | | - Carla Brown
- University of Arkansas for Medical SciencesLittle RockArkansasUSA
| | - Tara Venable
- University of Arkansas for Medical SciencesLittle RockArkansasUSA
| | - Megan Baber
- University of Arkansas for Medical SciencesLittle RockArkansasUSA
| |
Collapse
|
13
|
Butala S, Mazereeuw-Hautier J, Paller AS. Ichthyosis: presentation and management. Curr Opin Pediatr 2023; 35:467-474. [PMID: 37345742 DOI: 10.1097/mop.0000000000001264] [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] [Indexed: 06/23/2023]
Abstract
PURPOSE OF REVIEW This review focuses on the presentation and management of ichthyoses and highlights recent advances in treatment that hold promise for better targeted therapy. RECENT FINDINGS The ichthyoses are a group of rare genetic diseases with a wide phenotypic spectrum, characterized most often by generalized hyperkeratosis and scaling with variable erythema. The highly visible scaling and frequent itch contribute to decreased quality of life. Management for ichthyosis focuses on symptomatic relief and scale reduction with emollients, keratolytics, and retinoids. Recent advances in immune profiling and genotype-phenotype mapping have increased understanding of ichthyosis and shifted focus to pathogenesis-based targeted therapies with emerging biologics, small molecular inhibitors, and gene therapy. SUMMARY This article discusses clinical assessment and genotyping to make the diagnosis of specific forms of ichthyosis, provides guidance for management, and reviews new treatment options with systemic agents.
Collapse
Affiliation(s)
- Sneha Butala
- Department of Pediatrics, Yale New Haven Health - Bridgeport Site, Bridgeport, Connecticut; Pediatric Healthcare Associates, Shelton, Connecticut, USA
| | - Juliette Mazereeuw-Hautier
- Centre for Rare Skin Diseases, Dermatology Department, Larrey Hospital, Paul Sabatier University, Toulouse, France
| | - Amy S Paller
- Departments of Dermatology and Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| |
Collapse
|
14
|
Frommherz L, Komlosi K, Hewel C, Kopp J, Dewenter M, Zimmer A, Bartsch O, Linke M, Technau-Hafsi K, Gerber S, Fischer J, Has C. Acral lamellar ichthyosis with amino acid substitution in the C-terminus of keratin 2. J Eur Acad Dermatol Venereol 2023; 37:817-822. [PMID: 36331357 DOI: 10.1111/jdv.18719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Most cases of hereditary ichthyoses present with generalized scaling and skin dryness. However, in some cases skin involvement is restricted to particular body regions as in acral lamellar ichthyosis. OBJECTIVES We report on the genetic basis of acral ichthyosis in two families presenting with a similar phenotype. METHODS Genetic testing was performed by targeted next generation sequencing and whole-exome sequencing. For identity-by-descent analysis, the parents were genotyped and data analysis was performed with the Chromosome Analysis Suite Software. RT-PCR with RNA extracted from skin samples was used to analyse the effect of variants on splicing. RESULTS Genetic testing identified a few heterozygous variants, but only the variant in KRT2 c.1912 T > C, p.Phe638Leu segregated with the disease and remained the strongest candidate. Pairwise identity-by-descent analysis revealed no indication of family relationship. Phenylalanine 638 is the second last amino acid upstream of the termination codon in the tail of K2, and substitution to leucine is predicted as probably damaging. Assessment of the variant is difficult, in part due to the lack of crystal structures of this region. CONCLUSIONS Altogether, we show that a type of autosomal dominant acral ichthyosis is most probably caused by an amino acid substitution in the C-terminus of keratin 2.
Collapse
Affiliation(s)
- Leonie Frommherz
- Department of Dermatology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Department of Dermatology and Allergy, Ludwig-Maximilians-Universität München (LMU) Munich, University Hospital, Munich, Germany
| | - Katalin Komlosi
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Charlotte Hewel
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Julia Kopp
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Malin Dewenter
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Andreas Zimmer
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Oliver Bartsch
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Matthias Linke
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kristin Technau-Hafsi
- Department of Dermatology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Susanne Gerber
- Institute of Human Genetics, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
- Computational Systems Genomics Group, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Judith Fischer
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cristina Has
- Department of Dermatology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| |
Collapse
|
15
|
Zaver SA, Sarkar MK, Egolf S, Zou J, Tiwaa A, Capell BC, Gudjonsson JE, Simpson CL. Targeting SERCA2 in organotypic epidermis reveals MEK inhibition as a therapeutic strategy for Darier disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.07.531620. [PMID: 36945477 PMCID: PMC10028894 DOI: 10.1101/2023.03.07.531620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Mutation of the ATP2A2 gene encoding sarco-endoplasmic reticulum calcium ATPase 2 (SERCA2) was linked to Darier disease more than two decades ago; however, there remain no targeted therapies for this disorder causing recurrent skin blistering and infections. Since Atp2a2 knockout mice do not phenocopy its pathology, we established a human tissue model of Darier disease to elucidate its pathogenesis and identify potential therapies. Leveraging CRISPR/Cas9, we generated human keratinocytes lacking SERCA2, which replicated features of Darier disease, including weakened intercellular adhesion and defective differentiation in organotypic epidermis. To identify pathogenic drivers downstream of SERCA2 depletion, we performed RNA sequencing and proteomic analysis. SERCA2-deficient keratinocytes lacked desmosomal and cytoskeletal proteins required for epidermal integrity and exhibited excess MAP kinase signaling, which modulates keratinocyte adhesion and differentiation. Immunostaining patient biopsies substantiated these findings with lesions showing keratin deficiency, cadherin mis-localization, and ERK hyper-phosphorylation. Dampening ERK activity with MEK inhibitors rescued adhesive protein expression and restored keratinocyte sheet integrity despite SERCA2 depletion or chemical inhibition. In sum, coupling multi-omic analysis with human organotypic epidermis as a pre-clinical model, we found that SERCA2 haploinsufficiency disrupts critical adhesive components in keratinocytes via ERK signaling and identified MEK inhibition as a treatment strategy for Darier disease.
Collapse
|
16
|
Meyer JM, Vávrová K, Radner FPW, Schneider H, Dick A, Mauro TM, Elias PM. ALOX12B and PNPLA1 Have Distinct Roles in Epidermal Lipid Lamellar Organization. J Invest Dermatol 2023; 143:332-335.e4. [PMID: 36116510 DOI: 10.1016/j.jid.2022.07.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/14/2022] [Accepted: 07/27/2022] [Indexed: 01/27/2023]
Affiliation(s)
- Jason M Meyer
- Dermatology Service, Tennessee Valley Healthcare System, Nashville, Tennesse, USA; Department of Dermatology, Vanderbilt University Medical Center, Nashville, Tennesse, USA.
| | - Kateřina Vávrová
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Franz P W Radner
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Holm Schneider
- Department of Pediatrics, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Angela Dick
- Department of Pediatrics, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Theodora M Mauro
- Dermatology Branch, San Francisco VA Medical Center, San Francisco, California, USA; Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Peter M Elias
- Dermatology Branch, San Francisco VA Medical Center, San Francisco, California, USA; Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| |
Collapse
|
17
|
Gutiérrez-Cerrajero C, Sprecher E, Paller AS, Akiyama M, Mazereeuw-Hautier J, Hernández-Martín A, González-Sarmiento R. Ichthyosis. Nat Rev Dis Primers 2023; 9:2. [PMID: 36658199 DOI: 10.1038/s41572-022-00412-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/02/2022] [Indexed: 01/20/2023]
Abstract
The ichthyoses are a large, heterogeneous group of skin cornification disorders. They can be inherited or acquired, and result in defective keratinocyte differentiation and abnormal epidermal barrier formation. The resultant skin barrier dysfunction leads to increased transepidermal water loss and inflammation. Disordered cornification is clinically characterized by skin scaling with various degrees of thickening, desquamation (peeling) and erythema (redness). Regardless of the type of ichthyosis, many patients suffer from itching, recurrent infections, sweating impairment (hypohidrosis) with heat intolerance, and diverse ocular, hearing and nutritional complications that should be monitored periodically. The characteristic clinical features are considered to be a homeostatic attempt to repair the skin barrier, but heterogeneous clinical presentation and imperfect phenotype-genotype correlation hinder diagnosis. An accurate molecular diagnosis is, however, crucial for predicting prognosis and providing appropriate genetic counselling. Most ichthyoses severely affect patient quality of life and, in severe forms, may cause considerable disability and even death. So far, treatment provides only symptomatic relief. It is lifelong, expensive, time-consuming, and often provides disappointing results. A better understanding of the molecular mechanisms that underlie these conditions is essential for designing pathogenesis-driven and patient-tailored innovative therapeutic solutions.
Collapse
Affiliation(s)
- Carlos Gutiérrez-Cerrajero
- Department of Medicine, Faculty of Medicine, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| | - Eli Sprecher
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amy S Paller
- Departments of Dermatology and Paediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | | | | | - Rogelio González-Sarmiento
- Department of Medicine, Faculty of Medicine, University of Salamanca, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
| |
Collapse
|
18
|
Murashkin NN, Avetisyan KO, Ivanov RA, Makarova SG. Congenital Ichthyosis: Clinical and Genetic Characteristics of the Disease. CURRENT PEDIATRICS 2022. [DOI: 10.15690/vsp.v21i5.2459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Congenital ichthyosis is a group (almost 100 clinical variants) of rare genetic skin diseases caused by pathogenic changes in more than 50 genes. Clinical features of ichthyosis, regardless of its genotype, are dry skin, peeling, hyperkeratosis frequently accompanied with erythroderma. These patients have extremely low quality of life due to changes in appearance, discomfort due to itching and functional limitations (pain during walking, impaired hands motor skills and functions due to hyperkeratosis foci in functionally relevant areas), as well as impaired functions of various organs and systems in syndromic forms of disease. Patients need daily skin care and systemic medications. By now, there is no definitive treatment for ichthyosis. Diagnostic difficulties in determining the clinical forms of congenital ichthyosis are associated with their clinical heterogeneity and with similarity in external manifestations. Difficulties in differential diagnosis with other dermatoses are particularly crucial in case of syndromic forms of disease. This review presents the modern classification of ichthyoses, provides data on disease clinical and genetic variants, diagnostic algorithms, treatment methods for patients with this severe disease.
Collapse
Affiliation(s)
- N. N. Murashkin
- National Medical Research Center of Children’s Health; Sechenov First Moscow State Medical University; Central State Medical Academy of Department of Presidential Affairs
| | | | - R. A. Ivanov
- National Medical Research Center of Children’s Health; Central State Medical Academy of Department of Presidential Affairs
| | - S. G. Makarova
- National Medical Research Center of Children’s Health; Pirogov Russian National Research Medical University
| |
Collapse
|
19
|
Kim M, Mikhaylov D, Rangel SM, Pavel AB, He H, Renert-Yuval Y, Del Duca E, Malik K, Huynh T, Ibler E, Sun M, Zhang N, Estrada Y, Krueger J, Paller AS, Guttman-Yassky E. Transcriptomic Analysis of the Major Orphan Ichthyosis Subtypes Reveals Shared Immune and Barrier Signatures. J Invest Dermatol 2022; 142:2363-2374.e18. [PMID: 35421402 PMCID: PMC10234672 DOI: 10.1016/j.jid.2022.03.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 12/30/2022]
Abstract
Preliminary work suggested upregulation of inflammatory pathways in patients with common forms of ichthyosis. However, a comprehensive characterization of skin from various ichthyosis subtypes is unavailable, precluding the development of targeted treatments. Thus, we sought to characterize the immune and barrier profiles of common and subtype-specific skin transcriptomes in a large group of patients with ichthyosis. We performed a global RNA-sequencing analysis in 54 patients with ichthyosis (7 with Netherton syndrome, 13 with epidermolytic ichthyosis, 16 with lamellar ichthyosis, and 18 with congenital ichthyosiform erythroderma) and 40 healthy controls. Differentially expressed genes were defined on the basis of fold changes > 2 and false discovery rate < 0.05 criteria. We found robust and significant T helper (Th) 22/Th17 skewing in all subtypes (e.g., IL-17A/C/F, S100A7/8/9/12; P < 0.001) with modest changes in Th2 pathway, primarily in Netherton syndrome, and Th1 skewing in congenital ichthyosiform erythroderma. Across all subtypes (less evident in epidermolytic ichthyosis), lipid metabolism and barrier junction markers were downregulated (e.g., FA2H, CDH10/11/12/2; P < 0.05), whereas epidermal cornification and proliferation measures were upregulated (e.g., SPRR1A/1B/2C/2G, EREG; P < 0.05). Our findings suggest that the common ichthyosis variants share aberrations in Th17/Th22 and barrier function, with minimal Th2 modulation. This may help to elucidate the pathogeneses of these subtypes and inform the development of subtype-specific treatments.
Collapse
Affiliation(s)
- Madeline Kim
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Daniela Mikhaylov
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stephanie M Rangel
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ana B Pavel
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Department of Biomedical Engineering, The University of Mississippi, Oxford, Mississippi, USA
| | - Helen He
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yael Renert-Yuval
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Ester Del Duca
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Department of Dermatology, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Kunal Malik
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Thy Huynh
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Erin Ibler
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Mary Sun
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ning Zhang
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yeriel Estrada
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - James Krueger
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Amy S Paller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
| |
Collapse
|
20
|
Zeng J, Shan B, Guo L, Lv S, Li F. Compound Heterozygous Mutations in TGM1 Causing a Severe Form of Lamellar Ichthyosis: A Case Report. Pharmgenomics Pers Med 2022; 15:583-588. [PMID: 35698621 PMCID: PMC9188366 DOI: 10.2147/pgpm.s361350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/31/2022] [Indexed: 12/03/2022] Open
Abstract
We aimed to detect the pathogenic gene mutations in a patient with lamellar ichthyosis (LI). The genomic DNA of the patient was examined using high-throughput whole-exome sequencing to identify the causative mutations. Compound heterozygous mutations of c.1187G>T (p.Arg396Leu) and c.607C>T (p.Gln203*) were found in the transglutaminase-1 gene (TGM1) on chromosome 14 of the proband. The mutations stated above have been reported to impair the function of TGM1 protein and to be pathogenic. Our data suggest that the proband carried compound heterozygous mutations of c.1187G>T(p.Arg396Leu) and c.607C>T(p.Gln203*) in TGM1, which were in the trans position and the cause of his disease. We also found some dermoscopic in this patient which may be specific in LI.
Collapse
Affiliation(s)
- Jing Zeng
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Baihui Shan
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Lu Guo
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Sha Lv
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Fuqiu Li
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, People’s Republic of China
- Correspondence: Fuqiu Li, Department of Dermatology, the Second Hospital of Jilin University, No. 218 Nanguan District, Changchun, CN 130041, People’s Republic of China, Tel +8613039123758, Fax +86-0431-81136888, Email
| |
Collapse
|