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Scoliosis in Shprintzen-Goldberg Syndrome. Case Rep Orthop 2020; 2020:8857463. [PMID: 33299628 PMCID: PMC7704212 DOI: 10.1155/2020/8857463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/20/2020] [Accepted: 11/11/2020] [Indexed: 11/20/2022] Open
Abstract
We report a case of scoliosis in a 12-year-old girl with Shprintzen–Goldberg syndrome. She was diagnosed with Shprintzen–Goldberg syndrome at birth. She was hospitalized for a surgical treatment because scoliosis gradually progressed. Preoperative X-ray confirmed 80° symptomatic scoliosis in T10–L5. Posterior correction and fusion were performed, and postoperative X-ray showed a correction to 43°in T10-L5. Limited subcutaneous tissues and fragile bones must be considered when selecting the appropriate surgical method. Accurate placement of a screw into thin pedicle is essential to obtain sufficient correction and fusion. The use of a navigation system is recommended.
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Arai Y, Umeyama K, Okazaki N, Nakano K, Nishino K, Nagashima H, Ohgane J. DNA methylation ambiguity in the Fibrillin-1 (FBN1) CpG island shore possibly involved in Marfan syndrome. Sci Rep 2020; 10:5287. [PMID: 32210272 PMCID: PMC7093481 DOI: 10.1038/s41598-020-62127-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 03/09/2020] [Indexed: 11/15/2022] Open
Abstract
Fibrillin-1 (FBN1) is responsible for haploinsufficient and autosomal dominant Marfan syndrome. Even in the same Marfan pedigree, penetrance and expressivity in heterozygous individuals can differ and result in variable disease onset and severity. Thus, other factors in addition to mutations in FBN1 are likely to contribute to the disease. In this study, we examined the regulation of FBN1 in porcine Marfan syndrome model, focusing on DNA methylation patterns distinguishable as wild-type (WT) and FBN1 null (KO) alleles in heterozygous cells. Most importantly, the ratio of the transcriptionally active hypomethylated WT allele was altered during cellular passage and highly correlated with FBN1 mRNA level compared with that in the KO allele. Transcribed FBN1 RNA from the KO allele was abolished after splicing coupled with translational initiation, suggesting that the functional FBN1 mRNA levels were affected by DNA methylation of the WT allele.
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Affiliation(s)
- Yoshikazu Arai
- Laboratory of Veterinary Biochemistry and Molecular Biology, Faculty of Agriculture, University of Miyazaki, Miyazaki, 889-2192, Japan
| | - Kazuhiro Umeyama
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan.,Meiji University International Institute for Bio-Resource Research (MUIIBR), Kawasaki, 214-8571, Japan
| | - Natsumi Okazaki
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan
| | - Kazuaki Nakano
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan.,Meiji University International Institute for Bio-Resource Research (MUIIBR), Kawasaki, 214-8571, Japan
| | - Koichiro Nishino
- Laboratory of Veterinary Biochemistry and Molecular Biology, Faculty of Agriculture, University of Miyazaki, Miyazaki, 889-2192, Japan.,Center for Animal Disease Control, University of Miyazaki, Miyazaki, 889-2192, Japan
| | - Hiroshi Nagashima
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan.,Meiji University International Institute for Bio-Resource Research (MUIIBR), Kawasaki, 214-8571, Japan
| | - Jun Ohgane
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan.
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Arai Y, Umeyama K, Takeuchi K, Okazaki N, Hichiwa N, Yashima S, Nakano K, Nagashima H, Ohgane J. Establishment of DNA methylation patterns of the Fibrillin1 (FBN1) gene in porcine embryos and tissues. J Reprod Dev 2017; 63:157-165. [PMID: 28111381 PMCID: PMC5401809 DOI: 10.1262/jrd.2016-158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
DNA methylation in transcriptional regulatory regions is crucial for gene expression. The DNA methylation status of the edges of CpG islands, called CpG island shore, is involved in tissue/cell-type-specific gene expression.
Haploinsufficiency diseases are caused by inheritance of one mutated null allele and are classified as autosomal dominant. However, in the same pedigree, phenotypic variances are observed despite the inheritance of the identical
mutated null allele, including Fibrillin1 (FBN1), which is responsible for development of the haploinsufficient Marfan disease. In this study, we examined the relationship between gene expression
and DNA methylation patterns of the FBN1 CpG island shore focusing on transcriptionally active hypomethylated alleles (Hypo-alleles). No difference in the DNA methylation level of FBN1 CpG island
shore was observed in porcine fetal fibroblast (PFF) and the liver, whereas FBN1 expression was higher in PFF than in the liver. However, Hypo-allele ratio of the FBN1 CpG island shore in PFF was
higher than that in the liver, indicating that Hypo-allele ratio of the FBN1 CpG island shore likely correlated with FBN1 expression level. In addition, oocyte-derived DNA hypermethylation in
preimplantation embryos was erased until the blastocyst stage, and re-methylation of the FBN1 CpG island shore was observed with prolonged in vitro culture of blastocysts. These results suggest
that the establishment of the DNA methylation pattern within the FBN1 CpG island shore occurs after the blastocyst stage, likely during organogenesis. In conclusion, Hypo-allele ratios of the FBN1
CpG island shore correlated with FBN1 expression levels in porcine tissues.
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Affiliation(s)
- Yoshikazu Arai
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan.,Laboratory of Veterinary Biochemistry and Molecular Biology, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Kazuhiro Umeyama
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan.,Meiji University International Institute for Bio-Resource Research (MUIIBR), Kanagawa 214-8571, Japan
| | - Kenta Takeuchi
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Natsumi Okazaki
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Naomi Hichiwa
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Sayaka Yashima
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Kazuaki Nakano
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
| | - Hiroshi Nagashima
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan.,Meiji University International Institute for Bio-Resource Research (MUIIBR), Kanagawa 214-8571, Japan
| | - Jun Ohgane
- Laboratory of Genomic Function Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kanagawa 214-8571, Japan
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Ma M, Li Z, Wang DW, Wei X. Next-generation sequencing identifies novel mutations in the FBN1 gene for two Chinese families with Marfan syndrome. Mol Med Rep 2016; 14:151-8. [PMID: 27175573 PMCID: PMC4918605 DOI: 10.3892/mmr.2016.5229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 04/25/2016] [Indexed: 01/25/2023] Open
Abstract
Marfan syndrome (MFS) is an autosomal dominant heterogeneous disorder of connective tissue characterized by the early development of thoracic aneurysms/dissections, together with defects of the ocular and skeletal systems. Loss-of-function mutations in fibrillin-1 (FBN1) encoded by the gene, FBN1 (MFS-1), and in the transforming growth factor β receptor 2 (TGFBR2) gene, TGFBR2 (MFS-2), are major causes of this disorder. In the present study, a rapid and cost-effective method for genetically diagnosing MFS was described and used to identify disease-causing mutations in two unrelated pedigrees with MFS in mainland China. Using targeted semiconductor sequencing, two pathogenic mutations in four MFS patients of the two pedigrees were identified, including a novel frameshift insertion, p.G2120fsX2160, and a reported nonsense mutation, p.Arg529X (rs 137854476), in the FBN1 gene. In addition, a rare, probably benign Chinese-specific polymorphism in the FBN1 gene was also revealed.
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Affiliation(s)
- Mingjia Ma
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zongzhe Li
- Division of Cardiology, Department of Internal Medicine and the Genetic Diagnosis Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine and the Genetic Diagnosis Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xiang Wei
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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Generation of heterozygous fibrillin-1 mutant cloned pigs from genome-edited foetal fibroblasts. Sci Rep 2016; 6:24413. [PMID: 27074716 PMCID: PMC4830947 DOI: 10.1038/srep24413] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 03/29/2016] [Indexed: 01/09/2023] Open
Abstract
Marfan syndrome (MFS) is an autosomal dominant genetic disease caused by abnormal formation of the extracellular matrix with an incidence of 1 in 3, 000 to 5, 000. Patients with Marfan syndrome experience poor quality of life caused by skeletal disorders such as scoliosis, and they are at high risk of sudden death from cardiovascular impairment. Suitable animal models of MFS are essential for conquering this intractable disease. In particular, studies employing pig models will likely provide valuable information that can be extrapolated to humans because of the physiological and anatomical similarities between the two species. Here we describe the generation of heterozygous fibrillin-1 (FBN1) mutant cloned pigs (+/Glu433AsnfsX98) using genome editing and somatic cell nuclear transfer technologies. The FBN1 mutant pigs exhibited phenotypes resembling those of humans with MFS, such as scoliosis, pectus excavatum, delayed mineralization of the epiphysis and disrupted structure of elastic fibres of the aortic medial tissue. These findings indicate the value of FBN1 mutant pigs as a model for understanding the pathogenesis of MFS and for developing treatments.
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