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Montalván-Suárez M, Esperón-Moldes US, Rodríguez-Pazos L, Ordóñez-Ugalde A, Moscoso F, Ugalde-Noritz N, Santomé L, Fachal L, Tettamanti-Miranda D, Ruiz JC, Ginarte M, Vega A. A novel ABCA12 pathologic variant identified in an Ecuadorian harlequin ichthyosis patient: A step forward in genotype-phenotype correlations. Mol Genet Genomic Med 2019; 7:e608. [PMID: 30916489 PMCID: PMC6503032 DOI: 10.1002/mgg3.608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/10/2019] [Accepted: 01/24/2019] [Indexed: 11/22/2022] Open
Abstract
Background Autosomal recessive congenital ichthyoses (ARCI) have been associated with different phenotypes including: harlequin ichthyosis (HI), congenital ichthyosiform erythroderma (CIE), and lamellar ichthyosis (LI). While pathogenic variants in all ARCI genes are associated with LI and CIE phenotypes, the unique gene associated with HI is ABCA12. In HI, the most severe ARCI form, pathogenic variants in both ABCA12 gene alleles usually have a severe impact on protein function. The presence of at least one non‐truncating variant frequently causes a less severe congenital ichthyosis phenotype (LI and CIE). Methods We report the case of a 4‐year‐old Ecuadorian boy with a severe skin disease. Genetic diagnosis was performed by NGS. In silico predictions were performed using Alamut software v2.11. A review of the literature was carried out to identify all patients carrying ABCA12 splice‐site and missense variants, and to explore their genotype‐phenotype correlations. Results Genetic testing revealed a nonsense substitution, p.(Arg2204*), and a new missense variant, p.(Val1927Leu), in the ABCA12 gene. After performing in silico analysis and a comprehensive review of the literature, we conclude that p.(Val1927Leu) affects a well conserved residue which could either disturb the protein function or alter the splicing process, both alternatives could explain the severe phenotype of our patient. Conclusion This case expands the spectrum of ABCA12 reported disease‐causing variants which is important to unravel genotype‐phenotype correlations and highlights the importance of missense variants in the development of HI.
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Affiliation(s)
- Martha Montalván-Suárez
- Sistema de Investigación y Desarrollo SINDE, Universidad Católica de Santiago de Guayaquil and Universidad de Guayaquil, Guayaquil, Ecuador
| | - Uxia Saraiva Esperón-Moldes
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain.,Departamento de Ciencias Forenses, Anatomía Patolóxica, Xinecoloxía, Obstetricia e Pediatría, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Laura Rodríguez-Pazos
- Servicio de Dermatología del Complejo Hospitalario Universitario de Vigo, Vigo, Spain
| | - Andrés Ordóñez-Ugalde
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain.,Laboratorio Biomolecular, Cuenca, Ecuador.,Unidad de Genética y Molecular del Hospital de Especialidades José Carrasco Arteaga, Cuenca, Ecuador
| | | | - Nora Ugalde-Noritz
- Unidad de Genética y Molecular del Hospital de Especialidades José Carrasco Arteaga, Cuenca, Ecuador
| | - Luis Santomé
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain
| | - Laura Fachal
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain
| | | | - Juan Carlos Ruiz
- Universidad Espíritu Santo and Hospital Luis Vernaza, Guayaquil, Ecuador.,Instituto de Biomedicina Universidad Católica de Santiago de Guayaquil and Centro de Investigación, Universidad Espíritu Santo, Guayaquil, Ecuador
| | - Manuel Ginarte
- Servicio de Dermatología del Complexo Hospitalario Universitario de Santiago, Facultad de Medicina, Santiago de Compostela, Spain
| | - Ana Vega
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain
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Murase C, Takeichi T, Shibata A, Nakatochi M, Kinoshita F, Kubo A, Nakajima K, Ishii N, Amano H, Masuda K, Kawakami H, Kanekura T, Washio K, Asano M, Teramura K, Akasaka E, Tohyama M, Hatano Y, Ochiai T, Moriwaki S, Sato T, Ishida-Yamamoto A, Seishima M, Kurosawa M, Ikeda S, Akiyama M. Cross-sectional survey on disease severity in Japanese patients with harlequin ichthyosis/ichthyosis: Syndromic forms and quality-of-life analysis in a subgroup. J Dermatol Sci 2018; 92:127-133. [PMID: 30241690 DOI: 10.1016/j.jdermsci.2018.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/16/2018] [Accepted: 08/26/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Congenital ichthyoses (CIs) adversely affect quality of life (QOL) in patients. However, the effects of CIs on patient QOL have not been studied sufficiently. OBJECTIVE To investigate the association between disease severity and QOL in patients with harlequin ichthyosis (HI) and ichthyosis: syndromic forms (ISFs) METHODS: Clinical information of patients with HI and ISFs from 2010 to 2015 were obtained from 100 dermatology departments/divisions of principal institutes/hospitals throughout Japan. We examined the relationship between disease severity and QOL in patients with HI and ISFs. Patients who were aged 8 years or older and participated in a multicenter retrospective questionnaire survey in Japan were assessed by dermatology life quality index (DLQI, range of 0-30) and clinical ichthyosis score (range of 0-100). RESULTS Netherton syndrome patients had a significantly higher risk of allergy to food or environmental allergens than patients with other phenotypes. Keratitis-ichthyosis-deafness (KID) syndrome patients showed a significantly higher risk of skin infections than patients with other phenotypes. Complete data on DLQI were obtained from 13 patients, whose median age was 21 (8-71) years. Nine patients were male, and 4 were female. Systemic retinoids were administrated to 2 of the 3 HI patients. The Spearman's correlation coefficient between the clinical ichthyosis score and DLQI was 0.611 (P < 0.05). CONCLUSION We confirmed that Netherton syndrome and KID syndrome patients have a higher risk of allergy to food or environmental allergens and of skin infections, respectively. QOL impairment correlates with disease severity in HI and ISFs patients.
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Affiliation(s)
- Chiaki Murase
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8560, Japan
| | - Takuya Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8560, Japan
| | - Akitaka Shibata
- Department of Dermatology, Gifu Prefectural Tajimi Hospital, 161-5 Maehata-cho, Tajimi 507-8522, Japan
| | - Masahiro Nakatochi
- Statistical Analysis Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8560, Japan
| | - Fumie Kinoshita
- Statistical Analysis Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8560, Japan
| | - Akiharu Kubo
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Kimiko Nakajima
- Department of Dermatology, Kochi Medical School, 185-1 Kohasu, Okoh-cho, Nanakoku, Kochi 783-8505, Japan
| | - Norito Ishii
- Department of Dermatology, Kurume University School of Medicine, 67 Asahimachi, Kurume, Fukuoka 830-0011, Japan
| | - Hiroo Amano
- Department of Dermatology, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, Iwate 020-8505, Japan
| | - Koji Masuda
- Department of Dermatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Hiroshi Kawakami
- Department of Dermatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Takuro Kanekura
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima-shi, Kagoshima 890-8520, Japan
| | - Ken Washio
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Masayuki Asano
- Department of Dermatology, Tohoku University Graduate School of Medicine, Seiryoumachi 1-1, Aoba-ku, Sendai 980-8574, Japan
| | - Kazuya Teramura
- Department of Dermatology, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Eijiro Akasaka
- Department of Dermatology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
| | - Mikiko Tohyama
- Department of Dermatology, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon-shi, Ehime 791-0295, Japan
| | - Yutaka Hatano
- Department of Dermatology, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, Japan
| | - Toyoko Ochiai
- Department of Dermatology, Nihon University Hospital, 1-6 Kanda Surugadai, Chiyoda-Ku, Tokyo, 101-8309, Japan
| | - Shinichi Moriwaki
- Department of Dermatology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki, Osaka 569-8686, Japan
| | - Tomotaka Sato
- Department of Dermatology, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara 299-0111, Japan
| | - Akemi Ishida-Yamamoto
- Department of Dermatology, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahi-kawa, Hokkaido 078-8510, Japan
| | - Mariko Seishima
- Department of Dermatology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu-shi, Gifu 501-1194, Japan
| | - Michiko Kurosawa
- Departments of Epidemiology and Environmental Health, Juntendo University Graduate School of Medicine, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Shigaku Ikeda
- Departments of Dermatology, Juntendo University Graduate School of Medicine, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8560, Japan.
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Esperón-Moldes U, Ginarte M, Rodríguez-Pazos L, Fachal L, Pozo T, Aguilar JL, Del Boz González J, Santiago AM, Vega A. ABCA12 mutations in patients with autosomal recessive congenital ichthyosis: evidence of a founder effect in the Spanish population and phenotype-genotype implications. J Dermatol Sci 2018; 91:328-331. [PMID: 29887490 DOI: 10.1016/j.jdermsci.2018.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/24/2018] [Accepted: 05/30/2018] [Indexed: 10/14/2022]
Affiliation(s)
- Uxia Esperón-Moldes
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, Departamento de Ciencias Forenses, Anatomía Patolóxica, Xinecoloxía, Obstetricia e Pediatría,Universidade de Santiago de Compostela, CIBERER, IDIS, Santiago de Compostela, Spain
| | - Manuel Ginarte
- Dermatology Service of Complexo HospitalarioUniversitario de Santiago, Santiago de Compostela, Spain
| | | | - Laura Fachal
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain
| | - Tomás Pozo
- Dermatology Service of Hospital Río Hortega, Valladolid, Spain
| | | | | | - Ana Martín Santiago
- Dermatology Service of Hospital Universitari Son Espases, Palma de Mallorca, Spain
| | - Ana Vega
- Fundación Pública Galega de Medicina Xenómica-SERGAS, Grupo de Medicina Xenómica-USC, CIBERER, IDIS, Santiago de Compostela, Spain.
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Murase C, Takeichi T, Sugiura K, Kobayashi M, Shiomi K, Ikebuchi K, Tsutsumi Y, Akiyama M. Hearing impairment: A secondary symptom in a congenital ichthyosiform erythroderma patient with ABCA12 mutations. J Dermatol 2018; 45:e303-e304. [PMID: 29722424 DOI: 10.1111/1346-8138.14350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Chiaki Murase
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuya Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Miki Kobayashi
- Department of Pediatrics, Kyoto City Hospital, Kyoto, Japan
| | - Kozue Shiomi
- Department of Pediatrics, Kyoto City Hospital, Kyoto, Japan
| | | | - Yutaka Tsutsumi
- Division of Diagnostic Pathology, Haruhi Respiratory Medical Hospital, Kiyosu, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Bochner R, Samuelov L, Sarig O, Li Q, Adase CA, Isakov O, Malchin N, Vodo D, Shayevitch R, Peled A, Yu BD, Fainberg G, Warshauer E, Adir N, Erez N, Gat A, Gottlieb Y, Rogers T, Pavlovsky M, Goldberg I, Shomron N, Sandilands A, Campbell LE, MacCallum S, McLean WHI, Ast G, Gallo RL, Uitto J, Sprecher E. Calpain 12 Function Revealed through the Study of an Atypical Case of Autosomal Recessive Congenital Ichthyosis. J Invest Dermatol 2017; 137:385-393. [DOI: 10.1016/j.jid.2016.07.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/14/2016] [Accepted: 07/18/2016] [Indexed: 12/26/2022]
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Shibata A, Akiyama M. Epidemiology, medical genetics, diagnosis and treatment of harlequin ichthyosis in Japan. Pediatr Int 2015; 57:516-22. [PMID: 25857373 DOI: 10.1111/ped.12638] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 02/01/2015] [Accepted: 02/13/2015] [Indexed: 11/30/2022]
Abstract
Ichthyoses are a group of disorders marked by whitish, brown or dark-brown scales on the skin of almost the whole body. Harlequin ichthyosis (HI) is the most severe form. Neonatal death from HI was once common. Due to intensive neonatal care and, probably, to the early introduction of oral retinoids, HI outcome has improved. For definitive diagnosis and the exclusion of other disorders, such as lamellar ichthyosis, which also shows a collodion baby phenotype, it is helpful to refer to electron microscopy of abnormal or absent lamellar granules and a heavy accumulation of lipid droplets in the keratinocytes. ATP-binding cassette transporter A12 (ABCA12) is known as the causative gene of HI. Severe ABCA12 deficiency results in malformation of intercellular lipid layers in the cornified layers and leads to epidermal lipid barrier disruption. In HI patients, at least one mutation on each allele must be a truncation or deletion mutation to cause serious loss of ABCA12 function. Identification of the gene underlying HI has enabled DNA-based prenatal diagnosis for HI at the earlier stages of pregnancy with low risk. There are no curative treatments for HI. Abca12-deficient mice were created as a model of HI. Treatment of the model mice with retinoid or steroid has not been successful.
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Affiliation(s)
- Akitaka Shibata
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Numata S, Teye K, Krol RP, Karashima T, Fukuda S, Matsuda M, Ishii N, Furumura M, Ohata C, Saminathan SD, Ariffin R, Pramono ZAD, Leong KF, Hamada T, Hashimoto T. Mutation study for 9 genes in 23 unrelated patients with autosomal recessive congenital ichthyosis in Japan and Malaysia. J Dermatol Sci 2015; 78:82-5. [DOI: 10.1016/j.jdermsci.2015.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 02/06/2015] [Accepted: 02/09/2015] [Indexed: 02/04/2023]
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Ahmed H, O'Toole EA. Recent advances in the genetics and management of harlequin ichthyosis. Pediatr Dermatol 2014; 31:539-46. [PMID: 24920541 DOI: 10.1111/pde.12383] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Harlequin ichthyosis (HI) is the most severe and devastating form of the autosomal recessive congenital ichthyoses (ARCIs). Mutations in the ABCA12 gene result in disruption of intercellular lipid deposition in the stratum corneum and a major skin barrier defect. Patients present at birth, often premature, with cutaneous thick, yellow, hyperkeratotic plates with deep erythematous fissures, causing a typical facial appearance. Harlequin ichthyosis has often been considered to be fatal, and management tends to be palliative, but follow-up of 45 affected infants has shown that with good neonatal care and early introduction of oral retinoids, survival rates are improving. Because ABCA12 mutations have been identified, known carriers are able to undergo preventative preimplantation and prenatal genetic testing. Experimental studies have shown recovery of lipid secretion in lamellar granules using corrective gene therapy. Further research is needed to develop alternative therapies to retinoids in HI.
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Affiliation(s)
- Hera Ahmed
- Department of Dermatology, Barts Health National Health Service Trust, Whitechapel, London, UK
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