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Soğukpınar M, Demir GÜ, Utine GE, Gönç EN, Özön ZA, Şimşek-Kiper PÖ. Review of patients with achondroplasia: a single-center's experience with follow-up and associated morbidities. Eur J Pediatr 2024; 183:3819-3829. [PMID: 38879704 PMCID: PMC11322371 DOI: 10.1007/s00431-024-05643-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/30/2024] [Accepted: 06/03/2024] [Indexed: 07/19/2024]
Abstract
Achondroplasia (ACH; MIM #100,800), caused by a heterozygous gain of function pathogenic variant in the fibroblast growth factor receptor 3 gene (FGFR3; MIM*134,934), is the most prevalent and most readily identifiable cause of disproportionate short stature that is compatible with life. In addition, individuals with achondroplasia face significant medical, functional, and psychosocial challenges throughout their lives. This study assessed associated morbidities in patients with achondroplasia at a single center in Turkey. In this study, the clinical findings and associated morbidities of a group of patients with achondroplasia (n = 68) with clinical multidisciplinary follow-up at a single center between the years 2005-2023 are evaluated retrospectively. A total of 68 patients, 30 male (44.1%) and 38 female (55.9%), were evaluated. In the majority (84.2%) of patients, shortness of extremities was detected in the prenatal period at an average of 28.7 gestational weeks (± 3.6 SDS) with the aid of ultrasonography. More than half (n = 34/63, 54%) of the patients had a father of advanced paternal age (≥ 35 years). Among the complications, respiratory system manifestations, including obstructive sleep apnea (70%), ear-nose-throat manifestations including adenoid hypertrophy (56.6%) and otitis media (54.7%), neurological manifestations due to foramen magnum stenosis (53.2%), and skeletal manifestations including scoliosis (28.8%), are represented among the most common. The mortality rate was 7.3% (n = 5/68).Conclusion: This study not only represents the first retrospective analysis of the associated morbidities of patients with achondroplasia from a single center in Turkey but also will provide a reference point for future studies.
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Affiliation(s)
- Merve Soğukpınar
- Division of Pediatric Genetics, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
| | - Gizem Ürel Demir
- Division of Pediatric Genetics, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Elmas Nazlı Gönç
- Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Zeynep Alev Özön
- Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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2
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Zhang X, Jiang S, Zhang R, Guo S, Sheng Q, Wang K, Shan Y, Liao L, Dong J. Review of published 467 achondroplasia patients: clinical and mutational spectrum. Orphanet J Rare Dis 2024; 19:29. [PMID: 38281003 PMCID: PMC10822181 DOI: 10.1186/s13023-024-03031-1] [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: 08/11/2022] [Accepted: 01/19/2024] [Indexed: 01/29/2024] Open
Abstract
AIM Achondroplasia is the most common of the skeletal dysplasias that cause fatal and disabling growth and developmental disorders in children, and is caused by a mutation in the fibroblast growth factor receptor, type 3 gene(FGFR3). This study aims to analyse the clinical characteristics and gene mutations of ACH to accurately determine whether a patient has ACH and to raise public awareness of the disease. METHODS The database of Pubmed, Cochrane Library, Wanfang and CNKI were searched with terms of "Achondroplasias" or "Skeleton-Skin-Brain Syndrome" or "Skeleton Skin Brain Syndrome" or "ACH" and "Receptor, Fibroblast Growth Factor, Type 3" or "FGFR3". RESULTS Finally, four hundred and sixty-seven patients with different FGFR3 mutations were enrolled. Of the 138 patients with available gender information, 55(55/138, 40%) were female and 83(83/138, 60%) were male. Among the patients with available family history, 47(47/385, 12%) had a family history and 338(338/385, 88%) patients were sporadic. The age of the patients ranged from newborn babies to 36 years old. The mean age of their fathers was 37 ± 7 years (range 31-53 years). Patients came from 12 countries and 2 continents, with the majority being Asian (383/432, 89%), followed by European (49/432, 11%). Short stature with shortened arms and legs was found in 112(112/112) patients, the abnormalities of macrocephaly in 94(94/112) patients, frontal bossing in 89(89/112) patients, genu valgum in 64(64/112) patients and trident hand were found in 51(51/112) patients. The most common mutation was p.Gly380Arg of the FGFR3 gene, which contained two different base changes, c.1138G > A and c.1138G > C. Ten rare pathogenic mutations were found, including c.831A > C, c.1031C > G, c.1043C > G, c.375G > T, c.1133A > G, c.1130T > G, c.833A > G, c.649A > T, c.1180A > T and c.970_971insTCTCCT. CONCLUSION ACH was caused by FGFR3 gene mutation, and c.1138G > A was the most common mutation type. This study demonstrates the feasibility of molecular genetic testing for the early detection of ACH in adolescents with short stature, trident hand, frontal bossing, macrocephaly and genu valgum.
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Affiliation(s)
- XinZhong Zhang
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Shan Jiang
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Rui Zhang
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Siyi Guo
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Qiqi Sheng
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Kaili Wang
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Yuanyuan Shan
- Department of Endocrinology and Metabology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Nephrology, Jinan, China
| | - Lin Liao
- Department of Endocrinology and Metabology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Nephrology, Jinan, China.
- Department of Endocrinology and Metabology, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Jianjun Dong
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
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Del Pino M, Huckstadt V, Diaz-Gonzalez F, Obregon MG, Heath KE, Fano V. Clinical and radiological heterogeneity for the rare FGFR3 variant, p.Ser344Cys, description of a third patient. Am J Med Genet A 2023. [PMID: 37128991 DOI: 10.1002/ajmg.a.63227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/11/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Affiliation(s)
- Mariana Del Pino
- Growth and Development, Hospital Garrahan, Buenos Aires, Argentina
| | | | - Francisca Diaz-Gonzalez
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, UAM, IdiPAZ, Madrid, Spain
- Skeletal Dysplasia Multidisciplinary Unit (UMDE-ERN BOND), Hospital Universitario La Paz, UAM, Madrid, Spain
| | | | - Karen E Heath
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, UAM, IdiPAZ, Madrid, Spain
- Skeletal Dysplasia Multidisciplinary Unit (UMDE-ERN BOND), Hospital Universitario La Paz, UAM, Madrid, Spain
- CIBERER, ISCIII, Madrid, Spain
| | - Virginia Fano
- Growth and Development, Hospital Garrahan, Buenos Aires, Argentina
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4
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Chaudhry C, G P, Srivastava P, Das R, Kaur J, Panigrahi I, Kaur A. Achondroplasia-First Report from India of a Rare FGFR3 Gene Variant. Lab Med 2021; 52:499-502. [PMID: 33511985 DOI: 10.1093/labmed/lmaa116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The clinical manifestations of FGFR3 sequence variations can vary from mild unnoticed short stature to neonatal lethal dwarfism and can be causative of phenotypes including achondroplasia, hypochondroplasia, and thanatophoric dysplasia. Clinical data describe an 11 month old girl with restricted growth and preserved intellect. She had rhizomelic short stature with peculiar facies but no Acanthosis nigricans. In view of the absence of the hotspot mutation c.1138 G>A/G>C (p.Gly380Arg), complete gene sequencing was done that revealed a rare sequence variation, NM_000142.4:c.1043C>G (p.Ser348Cys) in FGFR3. This sequence variation has not been reported from India so far. This report emphasizes the benefit of sequencing the whole gene in individuals who are negative for hotspot mutation of achondroplasia with strong clinical suspicion.
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Affiliation(s)
- Chakshu Chaudhry
- Genetic Metabolic Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Prabakaran G
- Genetic Metabolic Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Priyanka Srivastava
- Genetic Metabolic Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Reena Das
- Department of Hematology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Jasbir Kaur
- Department of Hematology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Inusha Panigrahi
- Genetic Metabolic Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anupriya Kaur
- Genetic Metabolic Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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5
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Meyer AN, Modaff P, Wang CG, Wohler E, Sobreira NL, Donoghue DJ, Pauli RM. Typical achondroplasia secondary to a unique insertional variant of FGFR3 with in vitro demonstration of its effect on FGFR3 function. Am J Med Genet A 2020; 185:798-805. [PMID: 33368972 DOI: 10.1002/ajmg.a.62043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/29/2020] [Accepted: 12/09/2020] [Indexed: 12/14/2022]
Abstract
We describe an individual in whom clinical and radiographic features are typical for achondroplasia, but in whom the common variants of FGFR3 that result in achondroplasia are absent. Whole exome sequencing demonstrated a novel, de novo 6 base pair tandem duplication in FGFR3 that results in the insertion of Ser-Phe after position Leu324. in vitro studies showed that this variant results in aberrant dimerization, excessive spontaneous phosphorylation of FGFR3 dimers and excessive, ligand-independent tyrosine kinase activity. Together, these data suggest that this variant leads to constitutive disulfide bond-mediated dimerization, and that this, surprisingly, occurs to an extent similar to the neonatal lethal thanatophoric dysplasia type I Ser249Cys variant.
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Affiliation(s)
- April N Meyer
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Peggy Modaff
- Department of Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
| | - Clark G Wang
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Elizabeth Wohler
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Nara L Sobreira
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Daniel J Donoghue
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA.,UCSD Moores Cancer Center, La Jolla, California, USA
| | - Richard M Pauli
- Department of Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
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6
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Chang IJ, Sun A, Bouchard ML, Kamps SE, Hale S, Done S, Goldberg MJ, Glass IA. Novel phenotype of achondroplasia due to biallelic FGFR3 pathogenic variants. Am J Med Genet A 2019; 176:1675-1679. [PMID: 30160829 DOI: 10.1002/ajmg.a.38839] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/20/2018] [Accepted: 04/23/2018] [Indexed: 01/07/2023]
Abstract
Pathogenic variants in the fibroblast growth factor receptor 3 (FGFR3) gene are responsible for a broad spectrum of skeletal dysplasias, including achondroplasia (ACH). The classic phenotype of ACH is caused by two highly prevalent mutations, c.1138G > A and c.1138G > C (p.Gly380Arg). In the homozygous state, these variant results in a severe skeletal dysplasia, neurologic deficits, and early demise from respiratory insufficiency. Although homozygous biallelic mutations have been reported in patients with ACH in combination with hypochondroplasia or other dominant skeletal dysplasias, thus far, no cases of heterozygous biallelic pathogenic ACH-related variants in FGFR3 have been reported. We describe a novel phenotype of an infant with two ACH-related mutations in FGFR3, p.Gly380Arg and p.Ser344Cys. Discordant features from classic ACH include atypical radiographic findings, severe obstructive sleep apnea, and focal, migrating seizures. We also report the long-term clinical course of her father, who harbors the p.Ser344Cys mutation that has only been reported once previously in a Japanese patient. The phenotype of heterozygous biallelic mutations in FGFR3 associated with ACH is variable, underscoring the importance of recognition and accurate diagnosis to ensure appropriate management.
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Affiliation(s)
- Irene J Chang
- Department of Medical Genetics, University of Washington Medical Center, Seattle, Washington
| | - Angela Sun
- Department of Pediatrics, Division of Genetic Medicine, Seattle Children's Hospital and University of Washington, Seattle, Washington
| | - Maryse L Bouchard
- Department of Orthopedics and Sports Medicine, Seattle Children's Hospital, Seattle, Washington
| | - Shawn E Kamps
- Department of Radiology, Seattle Children's Hospital, Seattle, Washington.,Department of Radiology, University of Washington Medical Center, Seattle, Washington
| | - Susan Hale
- Department of Pediatrics, Division of Genetic Medicine, Seattle Children's Hospital and University of Washington, Seattle, Washington.,Department of Orthopedics and Sports Medicine, Seattle Children's Hospital, Seattle, Washington
| | - Stephen Done
- Department of Radiology, Seattle Children's Hospital, Seattle, Washington
| | - Michael J Goldberg
- Department of Orthopedics and Sports Medicine, Seattle Children's Hospital, Seattle, Washington
| | - Ian A Glass
- Department of Medical Genetics, University of Washington Medical Center, Seattle, Washington.,Department of Pediatrics, Division of Genetic Medicine, Seattle Children's Hospital and University of Washington, Seattle, Washington
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7
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Abstract
Achondroplasia is the most common of the skeletal dysplasias that result in marked short stature (dwarfism). Although its clinical and radiologic phenotype has been described for more than 50 years, there is still a great deal to be learned about the medical issues that arise secondary to this diagnosis, the manner in which these are best diagnosed and addressed, and whether preventive strategies can ameliorate the problems that can compromise the health and well being of affected individuals. This review provides both an updated discussion of the care needs of those with achondroplasia and an exploration of the limits of evidence that is available regarding care recommendations, controversies that are currently present, and the many areas of ignorance that remain.
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Affiliation(s)
- Richard M Pauli
- Midwest Regional Bone Dysplasia Clinic, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, 1500 Highland Ave., Madison, WI, 53705, USA.
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8
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Capalbo C, Belardinilli F, Filetti M, Parisi C, Petroni M, Colicchia V, Tessitore A, Santoni M, Coppa A, Giannini G, Marchetti P. Effective treatment of a platinum-resistant cutaneous squamous cell carcinoma case by EGFR pathway inhibition. Mol Clin Oncol 2018; 9:30-34. [PMID: 29977536 DOI: 10.3892/mco.2018.1634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 03/30/2018] [Indexed: 12/25/2022] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second most common type of non-melanoma skin cancer. Platinum-based regimens have been an integral part of palliative care for patients with locally advanced or metastatic disease. There is no evidence of efficacy for later lines of chemotherapy and no targeted therapy has been introduced as 'standard of care'. Here we report on the case of an elderly cSCC patient, resistant to conventional therapy, however successfully treated with anti-epidermal growth factor receptor (EGFR) agent (Cetuximab) in addition to a daily dose of Curcumin phospholipid. The patient responded to treatment and experienced no recurrence for 11 months with only minor skin-related toxicity. To our knowledge, this is the first report of clinical evidence that an anti EGFR targeted therapy with a daily oral dose of Curcumin phospholipid is well tolerated and results in a highly effective disease control in a heavily pretreated cSCC patient.
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Affiliation(s)
- Carlo Capalbo
- Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy.,Medical Oncology Sant'Andrea Hospital, I-00189 Rome, Italy
| | | | - Marco Filetti
- Medical Oncology Sant'Andrea Hospital, I-00189 Rome, Italy
| | - Claudia Parisi
- Medical Oncology Sant'Andrea Hospital, I-00189 Rome, Italy
| | - Marialaura Petroni
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, I-00161 Rome, Italy
| | - Valeria Colicchia
- Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy
| | | | - Matteo Santoni
- Oncology Unit, Macerata Hospital, I-62100 Macerata, Italy
| | - Anna Coppa
- Department of Experimental Medicine, Sapienza University of Rome, I-00161 Rome, Italy
| | - Giuseppe Giannini
- Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy.,Istituto Pasteur-Fondazione Cenci Bolognetti, I-00161 Rome, Italy
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9
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Ornitz DM, Legeai-Mallet L. Achondroplasia: Development, pathogenesis, and therapy. Dev Dyn 2017; 246:291-309. [PMID: 27987249 DOI: 10.1002/dvdy.24479] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/04/2016] [Accepted: 12/05/2016] [Indexed: 12/11/2022] Open
Abstract
Autosomal dominant mutations in fibroblast growth factor receptor 3 (FGFR3) cause achondroplasia (Ach), the most common form of dwarfism in humans, and related chondrodysplasia syndromes that include hypochondroplasia (Hch), severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN), and thanatophoric dysplasia (TD). FGFR3 is expressed in chondrocytes and mature osteoblasts where it functions to regulate bone growth. Analysis of the mutations in FGFR3 revealed increased signaling through a combination of mechanisms that include stabilization of the receptor, enhanced dimerization, and enhanced tyrosine kinase activity. Paradoxically, increased FGFR3 signaling profoundly suppresses proliferation and maturation of growth plate chondrocytes resulting in decreased growth plate size, reduced trabecular bone volume, and resulting decreased bone elongation. In this review, we discuss the molecular mechanisms that regulate growth plate chondrocytes, the pathogenesis of Ach, and therapeutic approaches that are being evaluated to improve endochondral bone growth in people with Ach and related conditions. Developmental Dynamics 246:291-309, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- David M Ornitz
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Laurence Legeai-Mallet
- Imagine Institute, Inserm U1163, Université Paris Descartes, Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
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10
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Ho Duy B, Zhytnik L, Maasalu K, Kändla I, Prans E, Reimann E, Märtson A, Kõks S. Mutation analysis of the COL1A1 and COL1A2 genes in Vietnamese patients with osteogenesis imperfecta. Hum Genomics 2016; 10:27. [PMID: 27519266 PMCID: PMC4983065 DOI: 10.1186/s40246-016-0083-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 07/30/2016] [Indexed: 11/14/2022] Open
Abstract
Background The genetics of osteogenesis imperfecta (OI) have not been studied in a Vietnamese population before. We performed mutational analysis of the COL1A1 and COL1A2 genes in 91 unrelated OI patients of Vietnamese origin. We then systematically characterized the mutation profiles of these two genes which are most commonly related to OI. Methods Genomic DNA was extracted from EDTA-preserved blood according to standard high-salt extraction methods. Sequence analysis and pathogenic variant identification was performed with Mutation Surveyor DNA variant analysis software. Prediction of the pathogenicity of mutations was conducted using Alamut Visual software. The presence of variants was checked against Dalgleish’s osteogenesis imperfecta mutation database. Results The sample consisted of 91 unrelated osteogenesis imperfecta patients. We identified 54 patients with COL1A1/2 pathogenic variants; 33 with COL1A1 and 21 with COL1A2. Two patients had multiple pathogenic variants. Seventeen novel COL1A1 and 10 novel COL1A2 variants were identified. The majority of identified COL1A1/2 pathogenic variants occurred in a glycine substitution (36/56, 64.3 %), usually serine (23/36, 63.9 %). We found two pathogenic variants of the COL1A1 gene c.2461G > A (p.Gly821Ser) in four unrelated patients and one, c.2005G > A (p.Ala669Thr), in two unrelated patients. Conclusion Our data showed a lower number of collagen OI pathogenic variants in Vietnamese patients compared to reported rates for Asian populations. The OI mutational profile of the Vietnamese population is unique and related to the presence of a high number of recessive mutations in non-collagenous OI genes. Further analysis of OI patients negative for collagen mutations, is required.
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Affiliation(s)
- Binh Ho Duy
- Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue city, 530000, Vietnam. .,Department of Traumatology and Orthopaedics, University of Tartu, Puusepa 8, 51014, Tartu, Estonia. .,Clinic of Traumatology and Orthopaedics, Tartu University Hospital, Puusepa 8, 51014, Tartu, Estonia.
| | - Lidiia Zhytnik
- Department of Traumatology and Orthopaedics, University of Tartu, Puusepa 8, 51014, Tartu, Estonia
| | - Katre Maasalu
- Department of Traumatology and Orthopaedics, University of Tartu, Puusepa 8, 51014, Tartu, Estonia.,Clinic of Traumatology and Orthopaedics, Tartu University Hospital, Puusepa 8, 51014, Tartu, Estonia
| | - Ivo Kändla
- Department of Pathophysiology, University of Tartu, Ravila 19, Tartu, 50411, Estonia
| | - Ele Prans
- Department of Pathophysiology, University of Tartu, Ravila 19, Tartu, 50411, Estonia
| | - Ene Reimann
- Department of Pathophysiology, University of Tartu, Ravila 19, Tartu, 50411, Estonia
| | - Aare Märtson
- Department of Traumatology and Orthopaedics, University of Tartu, Puusepa 8, 51014, Tartu, Estonia.,Clinic of Traumatology and Orthopaedics, Tartu University Hospital, Puusepa 8, 51014, Tartu, Estonia
| | - Sulev Kõks
- Centre of Translational Medicine, University of Tartu, Ravila 14a, Tartu, 50411, Estonia.,Department of Pathophysiology, University of Tartu, Ravila 19, Tartu, 50411, Estonia
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11
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Ahn SM, Kim YH, Baek JW, Bae EJ, Lee HJ. A diagnosis of hypochondroplasia by next generation sequencing. ACTA ACUST UNITED AC 2016. [DOI: 10.5734/jgm.2016.13.1.46] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Seok Min Ahn
- Department of Pediatrics, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Young Han Kim
- Department of Pediatrics, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Jun Woo Baek
- Department of Pediatrics, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Eun Ju Bae
- Department of Pediatrics, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Hong Jin Lee
- Department of Pediatrics, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
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12
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Hasegawa K, Fukuhara R, Moriwake T, Tanaka H, Higuchi Y, Yamashita M, Tsukahara H. A novel mutation p.Ser348Cys in FGFR3 causes achondroplasia. Am J Med Genet A 2016; 170A:1370-2. [PMID: 26754866 DOI: 10.1002/ajmg.a.37557] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 12/26/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Kosei Hasegawa
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Rie Fukuhara
- Department of Neonatalogy, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Tadashi Moriwake
- Department of Pediatrics, Iwakuni Clinical Center, National Hospital Organization, Iwakuni, Japan
| | - Hiroyuki Tanaka
- Department of Pediatrics, Okayama Saiseikai General Hospital, Okayama, Japan
| | - Yousuke Higuchi
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Miho Yamashita
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Hirokazu Tsukahara
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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