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Selvaraj V, Sekaran S, Dhanasekaran A, Warrier S. Type 1 collagen: Synthesis, structure and key functions in bone mineralization. Differentiation 2024; 136:100757. [PMID: 38437764 DOI: 10.1016/j.diff.2024.100757] [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: 09/30/2023] [Revised: 02/02/2024] [Accepted: 02/26/2024] [Indexed: 03/06/2024]
Abstract
Collagen is a highly abundant protein in the extracellular matrix of humans and mammals, and it plays a critical role in maintaining the body's structural integrity. Type I collagen is the most prevalent collagen type and is essential for the structural integrity of various tissues. It is present in nearly all connective tissues and is the main constituent of the interstitial matrix. Mutations that affect collagen fiber formation, structure, and function can result in various bone pathologies, underscoring the significance of collagen in sustaining healthy bone tissue. Studies on type 1 collagen have revealed that mutations in its encoding gene can lead to diverse bone diseases, such as osteogenesis imperfecta, a disorder characterized by fragile bones that are susceptible to fractures. Knowledge of collagen's molecular structure, synthesis, assembly, and breakdown is vital for comprehending embryonic and foetal development and several aspects of human physiology. In this review, we summarize the structure, molecular biology of type 1 collagen, its biomineralization and pathologies affecting bone.
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Affiliation(s)
- Vimalraj Selvaraj
- Department of Applied Mechanics and Biomedical Engineering, Indian Institute of Technology-Madras, Chennai, 600 036, Tamil Nadu, India.
| | - Saravanan Sekaran
- Department of Prosthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, Tamil Nadu, India.
| | | | - Sudha Warrier
- Department of Biotechnology, Faculty of Biomedical Sciences and Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, 600116, Tamil Nadu, India
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Tsai MC, Chou YY, Li CY, Wang YC, Yu HW, Chen CH, Chen PC. New Structural and Single Nucleotide Mutations in Type I and Type II Collagens in Taiwanese Children With Type I and Type II Collagenopathies. Front Genet 2021; 12:594285. [PMID: 34394176 PMCID: PMC8355745 DOI: 10.3389/fgene.2021.594285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 06/22/2021] [Indexed: 11/21/2022] Open
Abstract
Collagenopathy is a rare genetic condition characterized by abnormality in either collagen structure or metabolism. Variations in its clinical presentations highlight diversity in the genetic causes and potential existence of concurrent mutations. Through whole exome sequencing (WES) complemented with multiplex ligation-dependent probe amplification, we identified the genetic etiologies for six cases with osteogenesis imperfecta (OI) in COL1A1 (p.T1298N, p.Q1280Pfs∗51, and p.G557Vfs∗23) and COL1A2 (c.1-1677_133-441del) as well as three cases with spondyloepiphyseal dysplasia congenita in COL2A1 (p.G1041S, p.G654S, and p.G441A). Co-occurrence of COL1A1 and WNT1 mutations was found in a patient with a mild OI phenotype but severe osteoporosis. These findings extended the pathogenic variant spectrum of COL1A1, COL1A2, and COL2A1 for type I and type II collagenopathies. Although WES provides a fast and accurate method to identify the genetic causes in most of the patients with type I and type II collagenopathies, its limitation of detecting CNVs because of variable capturing uniformity should be kept in mind when interpreting the results. Taken together, we demonstrate that multiple genetic characterizing technologies can provide an accurate and efficient molecular diagnostic of new genetic variants in disease-causing genes that are compatible with clinical phenotypes.
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Affiliation(s)
- Meng-Che Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Depatment of Pediatrics, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Yen-Yin Chou
- Depatment of Pediatrics, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Yi Li
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Chieh Wang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hui-Wen Yu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Hsiang Chen
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Peng-Chieh Chen
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Research Center of Clinical Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
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Higuchi Y, Hasegawa K, Futagawa N, Yamashita M, Tanaka H, Tsukahara H. Genetic analysis in Japanese patients with osteogenesis imperfecta: Genotype and phenotype spectra in 96 probands. Mol Genet Genomic Med 2021; 9:e1675. [PMID: 33939306 PMCID: PMC8222851 DOI: 10.1002/mgg3.1675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 02/14/2021] [Accepted: 03/23/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Osteogenesis imperfecta (OI) is a rare connective-tissue disorder characterized by bone fragility. Approximately 90% of all OI cases are caused by variants in COL1A1 or COL1A2. Additionally, IFITM5 variants are responsible for the unique OI type 5. We previously analyzed COL1A1/2 variants in 22 Japanese families with OI through denaturing high-performance liquid chromatography screening, but our detection rate was low (41%). METHODS To expand the genotype-phenotype correlations, we performed a genetic analysis of COL1A1/2 and IFITM5 in 96 non-consanguineous Japanese OI probands by Sanger sequencing. RESULTS Of these individuals, 54, 41, and 1 had type 1 (mild), type 2-4 (moderate-to-severe), and type 5 phenotypes, respectively. In the mild group, COL1A1 nonsense and splice-site variants were prevalent (n = 30 and 20, respectively), but there were also COL1A1 and COL1A2 triple-helical glycine substitutions (n = 2 and 1, respectively). In the moderate-to-severe group, although COL1A1 and COL1A2 glycine substitutions were common (n = 14 and 18, respectively), other variants were also detected. The single case of type 5 had the characteristic c.-14C>T variant in IFITM5. CONCLUSION These results increase our previous detection rate for COL1A1/2 variants to 99% and provide insight into the genotype-phenotype correlations in OI.
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Affiliation(s)
- Yousuke Higuchi
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kosei Hasegawa
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Natsuko Futagawa
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Miho Yamashita
- Faculty of Human Life Sciences, Notre Dame Seishin University, Okayama, Japan
| | - Hiroyuki Tanaka
- Department of Pediatrics, Okayama Saiseikai General Hospital, Okayama, Japan
| | - Hirokazu Tsukahara
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Roles of the procollagen C-propeptides in health and disease. Essays Biochem 2019; 63:313-323. [DOI: 10.1042/ebc20180049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/01/2019] [Accepted: 06/04/2019] [Indexed: 11/17/2022]
Abstract
AbstractThe procollagen C-propeptides of the fibrillar collagens play key roles in the intracellular assembly of procollagen molecules from their constituent polypeptides chains, and in the extracellular assembly of collagen molecules into fibrils. Here we review recent advances in understanding the molecular mechanisms controlling C-propeptide trimerization which have revealed the importance of inter-chain disulphide bonding and a small number of charged amino acids in the stability and specificity of different types of chain association. We also show how the crystal structure of the complex between the C-propeptide trimer of procollagen III and the active fragment of procollagen C-proteinase enhancer-1 leads to a detailed model for accelerating release of the C-propeptides from procollagen by bone morphogenetic protein-1 and related proteinases. We then discuss the effects of disease-related missense mutations in the C-propeptides in relation to the sites of these mutations in the three-dimensional structure. While in general there is a good correlation between disease severity and structure-based predictions, there are notable exceptions, suggesting new interactions involving the C-propeptides yet to be characterized. Mutations affecting proteolytic release of the C-propeptides from procollagen are discussed in detail. Finally, the roles of recently discovered interaction partners for the C-propeptides are considered during fibril assembly and cross-linking.
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Lu Y, Zhang S, Wang Y, Ren X, Han J. Molecular mechanisms and clinical manifestations of rare genetic disorders associated with type I collagen. Intractable Rare Dis Res 2019; 8:98-107. [PMID: 31218159 PMCID: PMC6557237 DOI: 10.5582/irdr.2019.01064] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Type I collagen is an important structural protein of bone, skin, tendon, ligament and other connective tissues. It is initially synthesized as a precursor form, procollagen, consisting of two identical pro-α1(I) and one proα2(I) chains, encoded by COL1A1 and COL1A2, respectively. The N- and C- terminal propeptides of procollagen are cleavage by N-proteinase and C-proteinase correspondingly, to form the central triple helix structure with Gly-X-Y repeat units. Mutations of COL1A1 and COL1A2 genes are associated with osteogenesis imperfecta, some types of Ehlers-Danlos syndrome, Caffey diseases, and osteogenesis imperfect/Ehlers- Danlos syndrome overlapping diseases. Clinical symptoms caused by different variations can be variable or similar, mild to lethal, and vice versa. We reviewed the relationship between clinical manifestations and type I collagen - related rare genetic disorders and their possible molecular mechanisms for different mutations and disorders.
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Affiliation(s)
- Yanqin Lu
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Address correspondence to:Dr. Yanqin Lu, Shandong First Medical University & Shandong Academy of Medical Sciences, 18877 Jingshi Road, Ji'nan 250062, China. E-mail:
| | - Shie Zhang
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yanzhou Wang
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, China
| | - Xiuzhi Ren
- Department of Orthopaedic Surgery, The People’s Hospital of Wuqing District, Tianjin, China
| | - Jinxiang Han
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
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Zhai N, Lu Y, Wang Y, Zhang S, Peng C, Zhang S, Li T, Chen M, Liu J, Fang F, Ren X, Han J. Splice receptor-site mutation c.697-2A>G of the COL1A1 gene in a Chinese family with osteogenesis imperfecta. Intractable Rare Dis Res 2019; 8:150-153. [PMID: 31218168 PMCID: PMC6557241 DOI: 10.5582/irdr.2019.01046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Osteogenesis imperfecta (OI) is a genetic disorder characterized by bone fragility and blue sclerae, which are mainly caused by a mutation of the COL1A1 or COL1A2 genes that encode type I procollagen. Mutations in the splice site of type I collagen genes are one of the mutations that cause OI and usually lead to a mild or moderate OI phenotype. A heterozygous A to G point mutation in intron 9 at the -2 position of the splice receptor site of COL1A1 was identified in a family with type I or IV OI. Three affected individuals in four generations of one family all presented with several clinical symptoms. They all had pectus carinatum, flat feet, gray-blue sclerae, and normal stature, teeth, hearing, and vision. Forearm fractures, small joint dislocations, and muscle weakness were all present in the patient's father and grandmother, who presented with a moderate type IV phenotype. The 10-year-old proband with type I OI had suffered a fracture twice, but had no history of joint dislocation or skin hyperextensibility. Charting the family helped to identify clinical symptoms in patients with mutations at the N-terminal of type I collagen genes.
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Affiliation(s)
- Naixiang Zhai
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yanqin Lu
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yanzhou Wang
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, China
| | - Shie Zhang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
| | - Chuanming Peng
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
| | - Shanshan Zhang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
| | - Tianyou Li
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, China
| | - Mei Chen
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
| | - Junlong Liu
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
| | - Fengling Fang
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
| | - Xiuzhi Ren
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
- Address correspondence to:Dr. Jinxiang Han, Shandong First Medical University & Shandong Academy of Medical Sciences, 18877 Jingshi Road, Ji'nan 250062, China. E-mail:
| | - Jinxiang Han
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Key Laboratory for Biotech-Drugs of National Health Commission, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, China
- Address correspondence to:Dr. Jinxiang Han, Shandong First Medical University & Shandong Academy of Medical Sciences, 18877 Jingshi Road, Ji'nan 250062, China. E-mail:
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Lu Y, Wang Y, Rauch F, Li H, Zhang Y, Zhai N, Zhang J, Ren X, Han J. Osteogenesis imperfecta type III/Ehlers-Danlos overlap syndrome in a Chinese man. Intractable Rare Dis Res 2018; 7:37-41. [PMID: 29552444 PMCID: PMC5849623 DOI: 10.5582/irdr.2018.01010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Osteogenesis imperfecta (OI) and Ehlers-Danlos syndrome (EDS) are rare genetic disorders that are typically inherited in an autosomal dominant manner. Few cases of OI/EDS overlap syndrome have been documented. Described here is a 30-year-old Chinese male with OI type III and EDS. Sequencing of genomic DNA revealed a heterozygous COL1A1 mutation (c.671G>A, p.Gly224Asp) that affected the N-anchor domain of the alpha 1 chain of collagen type I. Ultrastructural analysis of a skin biopsy specimen revealed thin collagen fibers with irregular alignment of collagen fibers. These findings have expanded the genotypic spectrum of the OI/EDS overlap syndrome.
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Affiliation(s)
- Yanqin Lu
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yanzhou Wang
- Department of Paediatric Surgery, Shandong Provincial Hospital, Ji'nan, China
| | - Frank Rauch
- Shriners Hospital for Children and McGill University, Montreal, Quebec, Canada
| | - Hu Li
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yao Zhang
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Naixiang Zhai
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Jian Zhang
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Xiuzhi Ren
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
- Dr. Xiuzhi Ren, The People's Hospital of Wuqing District, 100 West Yongyang Road, Tianjin 301700, China. E-mail:
| | - Jinxiang Han
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Sciences, Ji'nan, China
- Address correspondence to: Dr. Jinxiang Han, Shandong Academy of Medical Sciences, 18877 Jingshi Road, 250062 Ji'nan, China. E-mail:
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Lu Y, Dai Y, Wang Y, Zhai N, Zhang J, Liu J, Yin X, Li T, Ren X, Han J. Complex heterozygous WNT1 mutation in severe recessive osteogenesis imperfecta of a Chinese patient. Intractable Rare Dis Res 2018; 7:19-24. [PMID: 29552441 PMCID: PMC5849620 DOI: 10.5582/irdr.2018.01014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Osteogenesis imperfecta (OI) is a heritable connective tissue disorder with a predominately autosomal-dominant inheritance pattern. Recessive forms of OI are rare and involve many different causative genes. WNT1 mutations were found to cause either autosomal-recessive OI or dominantly inherited early-onset osteoporosis. Here we describe a 32-year-old boy with severe osteopenia and deformity of the extremities. The relative long thumb and ring finger are obvious. We identified a novel combination of complex heterozygous WNT1 mutation of c.397 A>T (p.Ala133Thr) and c.506dupG (p.Cys170Leufs*) in the proband, both parents and young brother were shown to be heterozygous asymptomatic carriers of the mutation. This is the eleventh family and the thirteenth patient we have ever found in China. Mutation of c.397 A>T (p.Ala133Thr) was found for the third time following our previous findings in two individual families with four patients in total, and may be a hotspot mutation in Chinese WNT1-related OI patients. In silico programs supported the damaging effects for both mutations. The three-D structure demonstrated the severely destroyed stability of WNT1. Serum levels of WNT1, LRP5, and β-catenin were decreased, while higher levels of GSK-3β were detected. The molecular mechanisms of the complex heterozygous mutations need further study.
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Affiliation(s)
- Yanqin Lu
- Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yunzhang Dai
- Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Yanzhou Wang
- Department of Paediatric Surgery, Shandong Provincial Hospital, Ji'nan, China
| | - Naixiang Zhai
- Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Jian Zhang
- Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Junlong Liu
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
| | - Xiaoli Yin
- Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
| | - Tianyou Li
- Department of Paediatric Surgery, Shandong Provincial Hospital, Ji'nan, China
| | - Xiuzhi Ren
- Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, Tianjin, China
- Dr. Xiuzhi Ren, Department of Orthopaedic Surgery, The People's Hospital of Wuqing District, 100 Yogyang West Rd, Tianjin 301700, China. E-mail:
| | - Jinxiang Han
- Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, Ji'nan, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Ji'nan, China
- Address correspondence to: Dr. Jinxiang Han, Shandong Medicinal Biotechnology Centre, Shandong Academy of Medical Sciences, 18877 Jingshi Road, Ji'nan 250062, China. E-mail:
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Severe hypotonia and postnatal growth impairment in a girl with a missense mutation in COL1A1: Implication of expanded phenotypic spectrum of type I collagenopathy. Brain Dev 2017; 39:799-803. [PMID: 28668235 DOI: 10.1016/j.braindev.2017.04.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/24/2017] [Accepted: 04/27/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND It is known that type I collagenopathy has a broad-spectrum phenotypic variability. Here, we report a case of a Korean girl with a heterozygous COL1A1 mutation who had an atypical presentation. CASE PRESENTATION A 26-month-old girl presented with delayed motor development and failure to thrive. She had severe growth retardation. She exhibited right-sided plagiocephaly, blue sclerae, and facial dysmorphism, including a small pointed chin, frontal bossing, and a triangular face, but had microcephaly. Whole-exome sequencing revealed a novel de novo heterozygous sequence variant in COL1A1 (p.Gly1127Asp), which was validated by Sanger sequencing. Radiological finding showed generalized osteoporosis with progressive scoliosis of the spine without evidence of platyspondyly related to fractures and bowing of the long bones, and markedly delayed carpal bone age. Muscle pathology showed a marked size variation of myofibers and selective type 1 atrophy. CONCLUSIONS This study expanded the clinical and genetic spectrum of type I collagenopathy with a COL1A1 variant. Therefore, we suggest that type I collagenopathy should be considered in the patients who have some features of osteogenesis imperfecta simultaneously with atypical features such as facial dysmorphism.
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Zhang H, Yue H, Wang C, Hu W, Gu J, He J, Fu W, Hu Y, Li M, Zhang Z. Clinical characteristics and the identification of novel mutations of COL1A1 and COL1A2 in 61 Chinese patients with osteogenesis imperfecta. Mol Med Rep 2016; 14:4918-4926. [PMID: 27748872 DOI: 10.3892/mmr.2016.5835] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 09/15/2016] [Indexed: 11/06/2022] Open
Abstract
Osteogenesis imperfecta (OI) is an inherited connective tissue disorder characterized by brittle bone fractures. The aim of the present study was to investigate the pathogenic gene mutation spectrum and clinical manifestations of mutations in collagen type I, alpha 1 (COL1A1) and collagen type I, alpha 2 (COL1A2) genes in Chinese patients with OI. A total of 61 unrelated Chinese OI patients with COL1A1 and COL1A2 mutations were recruited. All the exons and the exon-intron boundaries of the COL1A1 and COL1A2 genes were amplified and directly sequenced and lumbar spine bone mineral density was measured by dual‑energy X‑ray absorptiometry. The mutations of the 61 probands included 33 missense mutations, 8 nonsense mutations, 7 splicing variants and 13 frameshift mutations in COL1A1 and COL1A2 genes. A total of 25 novel mutations were identified, including 18 in COL1A1 and 7 in COL1A2. The mutations p.Gly257Arg, p.Gly767Ser and p.Gly821Ser in COL1A1 and p.Gly337Ser in COL1A2 may be located at a mutation hotspot for human OI due to the high repetition rate in OI patients. Family history was positive for OI in 33 probands (54%). All probands had suffered fractures and the most common fracture site was the femur. A total of 49 probands presented with blue sclerae (80.3%), 20 probands suffered from dentinogenesis imperfecta (32.8%) and 1 patient had hearing loss (1.6%). These findings may improve understanding of the pathogenic gene mutation spectrum and the clinical manifestations of mutations of COL1A1 and COL1A2 genes in Chinese patients with OI.
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Affiliation(s)
- Hao Zhang
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Hua Yue
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Chun Wang
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Weiwei Hu
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Jiemei Gu
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Jinwei He
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Wenzhen Fu
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Yunqiu Hu
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Miao Li
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Zhenlin Zhang
- Department of Osteoporosis and Bone Diseases, Metabolic Bone Diseases and Genetic Research Unit, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
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11
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Marshall CJ, Arundel P, Mushtaq T, Offiah AC, Pollitt RC, Bishop NJ, Balasubramanian M. Diagnostic conundrums in antenatal presentation of a skeletal dysplasia with description of a heterozygous C-propeptide mutation in COL1A1 associated with a severe presentation of osteogenesis imperfecta. Am J Med Genet A 2016; 170:3303-3307. [PMID: 27549894 DOI: 10.1002/ajmg.a.37943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 08/04/2016] [Indexed: 01/18/2023]
Abstract
Prompt and accurate diagnosis of skeletal dysplasias can play a crucial role in ensuring appropriate counseling and management (both antenatal and postnatal). When a skeletal dysplasia is detected during the antenatal period, especially early in the pregnancy, it can be associated with a poor prognosis. It is important to make a diagnosis in antenatal presentation of skeletal dysplasias to inform diagnosis, predict prognosis, provide accurate recurrence risks, and options for prenatal genetic testing in future pregnancies. Prenatal ultrasound scanning is a useful tool to detect several skeletal dysplasias and sonographic measurements serve as reliable indicators of lethality. The lethality depends on various factors including gestational age at which features are identified, size of the chest and progression of malformations. Although, it is important to type the skeletal presentation as accurately as possible, this is not always possible in an antenatal presentation and it is important to acknowledge this uncertainty. In the case of a live birth, it is always important to reassess the infant. Osteogenesis imperfecta (OI) is a heterogeneous group of disorders characterized by fragile bones. Here, we report an infant with severe OI born following a twin pregnancy in whom the bone disease is caused by a heterozygous pathogenic mutation, c.4160C >T, p.(Ala1387Val) located in the C-propeptide region of COL1A1. An assumption of lethality antenatally complicated his management in early life. We discuss this patient with particular emphasis on the neonatal presentation of a severe skeletal dysplasia and the lessons that may be learned in such situations. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
| | - Paul Arundel
- Highly Specialised Severe, Complex and Atypical OI Service, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
- Academic Unit of Child Health, University of Sheffield, Sheffield, United Kingdom
| | - Talat Mushtaq
- Department of Paediatric Endocrinology, Leeds Teaching Hospitals, Leeds, United Kingdom
| | - Amaka C Offiah
- Highly Specialised Severe, Complex and Atypical OI Service, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
- Academic Unit of Child Health, University of Sheffield, Sheffield, United Kingdom
| | - Rebecca C Pollitt
- Sheffield Diagnostic Genetics Service, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
| | - Nicholas J Bishop
- Highly Specialised Severe, Complex and Atypical OI Service, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
- Academic Unit of Child Health, University of Sheffield, Sheffield, United Kingdom
| | - Meena Balasubramanian
- Highly Specialised Severe, Complex and Atypical OI Service, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
- Sheffield Clinical Genetics Service, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
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12
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Symoens S, Hulmes DJS, Bourhis JM, Coucke PJ, De Paepe A, Malfait F. Type I procollagen C-propeptide defects: study of genotype-phenotype correlation and predictive role of crystal structure. Hum Mutat 2014; 35:1330-41. [PMID: 25146735 DOI: 10.1002/humu.22677] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/28/2014] [Accepted: 08/08/2014] [Indexed: 11/10/2022]
Abstract
The type I procollagen carboxyterminal(C-)propeptides are crucial in directing correct assembly of the procollagen heterotrimers. Defects in these domains have anecdotally been reported in patients with Osteogenesis Imperfecta (OI) and few genotype-phenotype correlations have been described. To gain insight in the functional consequences of C-propeptide defects, we performed a systematic review of clinical, molecular, and biochemical findings in all patients in whom we identified a type I procollagen C-propeptide defect, and compared this with literature data. We report 30 unique type I procollagen C-propeptide variants, 24 of which are novel. The outcome of COL1A1 nonsense and frameshift variants depends on the location of the premature termination codon. Those located prior to 50-55 nucleotides upstream of the most 3' exon-exon junction lead to nonsense-mediated mRNA decay (NMD) and cause mild OI. Those located beyond this boundary escape NMD, generally lead to production of stable, overmodified procollagen chains, which may partly be retained intracellularly, and are usually associated with severe-to-lethal OI. Proα1(I)-C-propeptide defects that permit chain association result in more severe phenotypes than those inhibiting chain association. We demonstrate that the crystal structure of the proα1(III)-C-propeptide is a reliable tool to predict phenotypic severity for most COL1A1-C-propeptide missense variants, whereas for COL1A2-C-propeptide variants, the phenotypic outcome is milder than predicted.
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Affiliation(s)
- Sofie Symoens
- Center for Medical Genetics, Ghent University Hospital, 9000, Ghent, Belgium
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