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Rey LK, Kohlhase J, Möllenhoff K, Dekomien G, Epplen JT, Hoffjan S. A Novel ECM1 Splice Site Mutation in Lipoid Proteinosis: Case Report plus Review of the Literature. Mol Syndromol 2016; 7:26-31. [PMID: 27194970 DOI: 10.1159/000444615] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2016] [Indexed: 12/20/2022] Open
Abstract
Lipoid proteinosis (LP) is an autosomal recessive genodermatosis known to be caused by mutations in ECM1. Nonsense and missense mutations are the most common variations in LP. Up to date, only 6 splice site mutations have been observed. We report on a 26-year-old female LP patient from a Turkish consanguineous family carrying a novel homozygous splice site mutation in intron 8 of the ECM1 gene and summarize the current knowledge on ECM1 mutations and possible genotype-phenotype correlations.
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Affiliation(s)
- Linda K Rey
- Departments of Human Genetics, University Witten/Herdecke, Witten, Germany; Departments of Center for Rare Diseases Ruhr (CeSER), Bochum, Germany
| | | | - Katrin Möllenhoff
- Departments of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Germany; Departments of Center for Rare Diseases Ruhr (CeSER), Bochum, Germany
| | - Gabriele Dekomien
- Departments of Human Genetics, University Witten/Herdecke, Witten, Germany; Departments of Center for Rare Diseases Ruhr (CeSER), Bochum, Germany
| | - Jörg T Epplen
- Departments of Human Genetics, University Witten/Herdecke, Witten, Germany; Departments of Center for Rare Diseases Ruhr (CeSER), Bochum, Germany; Departments of Faculty of Health, University Witten/Herdecke, Witten, Germany
| | - Sabine Hoffjan
- Departments of Human Genetics, University Witten/Herdecke, Witten, Germany; Departments of Center for Rare Diseases Ruhr (CeSER), Bochum, Germany
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Luo XY, Li Q, Tan Q, Yang H, Xiang J, Miao JK, Wang H. Treatment of lipoid proteinosis with acitretin in two patients from two unrelated Chinese families with novel nonsense mutations of the ECM1 gene. J Dermatol 2016; 43:804-7. [PMID: 26778481 DOI: 10.1111/1346-8138.13261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 11/10/2015] [Indexed: 11/28/2022]
Abstract
Lipoid proteinosis is a rare recessive genetic disorder caused by loss-of-function mutations to chromosome 1 at 1q21, the extracellular matrix protein 1 (ECM1) gene. Two children with lipoid proteinosis were reported from two unrelated Chinese families, both manifesting with a typical hoarse voice, white acne-like atrophic lesions and scarring on the skin, and beaded papules around the eyelids. The diagnosis had been confirmed by laboratory tests, skin biopsy and laryngoscope examination. Genomic DNA sequencing was performed for both children and their family members. The two children were treated with acitretin for 6 months and followed up for 1 year. Genomic DNA sequencing of the ECM1 gene showed a novel homozygous nonsense mutation of C1522>T (p.R508X) at exon 10 in one patient, and a novel compound heterozygote for a nonsense/frame-shift combination of mutations of R281X/1596delG at exons 7 and 10 in the other patient. The symptom of hoarse voice was improved by 6-month treatment with acitretin, while there was no improvement in the skin lesions. These results demonstrated that acitretin treatment may have efficacy for some of patients with lipoid proteinosis, with superior effect on laryngeal symptoms than skin lesions. However, the conclusive therapeutic effect and underlying mechanisms remain to be further investigated.
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Affiliation(s)
- Xiao-Yan Luo
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Qiu Li
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Qi Tan
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Huan Yang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Juan Xiang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Jing-Kun Miao
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Hua Wang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
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Zhang R, Liu Y, Xue Y, Wang Y, Wang X, Shi S, Cai T, Wang Q. Treatment of lipoid proteinosis due to the p.C220G mutation in ECM1, a major allele in Chinese patients. J Transl Med 2014; 12:85. [PMID: 24708644 PMCID: PMC4021827 DOI: 10.1186/1479-5876-12-85] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 03/29/2014] [Indexed: 12/03/2022] Open
Abstract
Background Lipoid proteinosis (LP) is known to be resulted from mutations of the extracellular matrix protein 1 gene (ECM1). However, no effective or sustained therapeutic methods to alleviate LP symptoms have been reported. Methods Here, we report a 12-year-old boy with LP and recurrent anaphylaxis. The laboratory and histopathological investigations were adopted to confirm the diagnosis, and gene sequencing was performed. We treated this patient with glucocorticoid for three years to relieve the patient’s lipid metabolism disorder and symptoms related to LP and anaphylaxis. Results The Laboratory and histopathological investigations showed a lipid metabolism disorder and anaphylaxis in the patient. A homozygous missense mutation p.C220G of ECM1 was identified by Sanger sequencing, which is a major allele in Chinese patients with LP. Notably, after three years’ treatment, the symptoms such as skin lesions, stiff oral mucosa and hoarse voice in the patient were significantly relieved or recovered. Conclusions Our report may provide a potentially effective therapeutic approach for the first time to other LP patients who are experiencing recurrent anaphylaxis and/or chronic inflammation.
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Affiliation(s)
| | | | | | | | | | | | - Tao Cai
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, P,R, China.
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Molecular analysis of lipoid proteinosis: identification of a novel nonsense mutation in the ECM1 gene in a Pakistani family. Diagn Pathol 2011; 6:69. [PMID: 21791056 PMCID: PMC3158550 DOI: 10.1186/1746-1596-6-69] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 07/26/2011] [Indexed: 11/17/2022] Open
Abstract
Lipoid proteinosis is a rare autosomal recessive disease characterized by cutaneous and mucosal lesions and hoarseness appearing in early childhood that is caused by homozygous or compound heterozygous mutations in the ECM1 gene located on chromosome 1q21. The aim of the study was to investigate the molecular genetic defect underlying lipoid proteinosis in a consanguineous Pakistani family.
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