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Szoszkiewicz A, Bukowska-Olech E, Jamsheer A. Molecular landscape of congenital vertebral malformations: recent discoveries and future directions. Orphanet J Rare Dis 2024; 19:32. [PMID: 38291488 PMCID: PMC10829358 DOI: 10.1186/s13023-024-03040-0] [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: 07/18/2023] [Accepted: 01/19/2024] [Indexed: 02/01/2024] Open
Abstract
Vertebral malformations (VMs) pose a significant global health problem, causing chronic pain and disability. Vertebral defects occur as isolated conditions or within the spectrum of various congenital disorders, such as Klippel-Feil syndrome, congenital scoliosis, spondylocostal dysostosis, sacral agenesis, and neural tube defects. Although both genetic abnormalities and environmental factors can contribute to abnormal vertebral development, our knowledge on molecular mechanisms of numerous VMs is still limited. Furthermore, there is a lack of resource that consolidates the current knowledge in this field. In this pioneering review, we provide a comprehensive analysis of the latest research on the molecular basis of VMs and the association of the VMs-related causative genes with bone developmental signaling pathways. Our study identifies 118 genes linked to VMs, with 98 genes involved in biological pathways crucial for the formation of the vertebral column. Overall, the review summarizes the current knowledge on VM genetics, and provides new insights into potential involvement of biological pathways in VM pathogenesis. We also present an overview of available data regarding the role of epigenetic and environmental factors in VMs. We identify areas where knowledge is lacking, such as precise molecular mechanisms in which specific genes contribute to the development of VMs. Finally, we propose future research avenues that could address knowledge gaps.
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Affiliation(s)
- Anna Szoszkiewicz
- Department of Medical Genetics, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznan, Poland.
| | - Ewelina Bukowska-Olech
- Department of Medical Genetics, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznan, Poland
| | - Aleksander Jamsheer
- Department of Medical Genetics, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznan, Poland.
- Centers for Medical Genetics GENESIS, Dąbrowskiego 77A, 60-529, Poznan, Poland.
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Ma Y, Xu Y, Zhang Y, Duan X. Molecular Mechanisms of Craniofacial and Dental Abnormalities in Osteopetrosis. Int J Mol Sci 2023; 24:10412. [PMID: 37373559 DOI: 10.3390/ijms241210412] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Osteopetrosis is a group of genetic bone disorders characterized by increased bone density and defective bone resorption. Osteopetrosis presents a series of clinical manifestations, including craniofacial deformities and dental problems. However, few previous reports have focused on the features of craniofacial and dental problems in osteopetrosis. In this review, we go through the clinical features, types, and related pathogenic genes of osteopetrosis. Then we summarize and describe the characteristics of craniofacial and dental abnormalities in osteopetrosis that have been published in PubMed from 1965 to the present. We found that all 13 types of osteopetrosis have craniomaxillofacial and dental phenotypes. The main pathogenic genes, such as chloride channel 7 gene (CLCN7), T cell immune regulator 1 (TCIRG1), osteopetrosis-associated transmembrane protein 1 (OSTM1), pleckstrin homology domain-containing protein family member 1 (PLEKHM1), and carbonic anhydrase II (CA2), and their molecular mechanisms involved in craniofacial and dental phenotypes, are discussed. We conclude that the telltale craniofacial and dental abnormalities are important for dentists and other clinicians in the diagnosis of osteopetrosis and other genetic bone diseases.
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Affiliation(s)
- Yu Ma
- College of Life Sciences, Northwest University, Xi'an 710069, China
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Disease, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yali Xu
- College of Life Sciences, Northwest University, Xi'an 710069, China
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Disease, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yanli Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Disease, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Xiaohong Duan
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Disease, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
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Turan S. Osteopetrosis: Gene-based nosology and significance Dysosteosclerosis. Bone 2023; 167:116615. [PMID: 36402365 DOI: 10.1016/j.bone.2022.116615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 11/09/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
Abstract
Dysosteosclerosis (DSS) refers to skeletal dysplasias that radiographically feature focal appendicular osteosclerosis with variable platyspondyly. Genetic heterogeneity is increasingly reported for the DSS phenotype and now involves mutations of SLC29A3, TNFRSF11A, TCIRG1, LRRK1, and CSF1R. Typical radiological findings are widened radiolucent long bones with thin cortices yet dense irregular metaphyses, flattened vertebral bodies, dense ribs, and multiple fractures. However, the radiographic features of DSS evolve, and the metaphyseal and/or appendicular osteosclerosis variably fades with increasing patient age, likely due to some residual osteoclast function. Fractures are the principal presentation of DSS, and may even occur in infancy with SLC29A3-associated DSS. Cranial base sclerosis can lead to cranial nerve palsies such as optic atrophy, and may be the initial presentation, though not observed with SLC29A3-associated DSS. Gene-specific extra-skeletal features can be the main complication in some forms of DSS such as CSF1R- associated DSS. Further genetic heterogeneity is likely, especially for X-linked recessive DSS and cases currently with an unknown genetic defect. Distinguishing DSS can be challenging due to variable clinical and radiological features and an evolving phenotype. However, defining the DSS phenotype is important for predicting complications, prognosis, and instituting appropriate health surveillance and treatment.
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Affiliation(s)
- Serap Turan
- Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey.
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Abstract
Osteopetrosis (OPT) is a rare inherited bone disease characterized by a bone resorption defect, due to osteoclast malfunction (in osteoclast-rich, oc-rich, OPT forms) or absence (in oc-poor OPT forms). This causes severe clinical abnormalities, including increased bone density, lack of bone marrow cavity, stunted growth, macrocephaly, progressive deafness, blindness, hepatosplenomegaly, and severe anemia. The oc-poor subtype of OPT is ultra-rare in humans. It is caused by mutations in either the tumor necrosis factor ligand superfamily member 11 (TNFSF11) gene, encoding RANKL (Receptor Activator of Nuclear factor-kappa B [NF-κB] Ligand) which is expressed on cells of mesenchymal origin and lymphocytes, or the TNFRSF member 11A (TNFRSF11A) gene, encoding the RANKL functional receptor RANK which is expressed on cells of myeloid lineage including osteoclasts. Clinical presentation is usually severe with onset in early infancy or in fetal life, although as more patients are reported, expressivity is variable. Phenotypic variability of RANK-deficient OPT sometimes includes hypogammaglobulinemia or radiological features of dysosteosclerosis. Disease progression is somewhat slower in RANKL-deficient OPT than in other 'malignant' subtypes of OPT. While both RANKL and RANK are essential for normal bone turnover, hematopoietic stem cell transplantation (HSCT) is the treatment of choice only for patients with the RANK-deficient form of oc-poor OPT. So far, there is no cure for RANKL-deficient OPT.
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Affiliation(s)
- Cristina Sobacchi
- CNR-IRGB, Milan Unit, via Fantoli 16/15, 20138 Milan, Italy; Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, MI, Italy.
| | - Mario Abinun
- Paediatric Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne NE1 4LP, UK; Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
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Turan S, Mumm S, Alavanda C, Kaygusuz BS, Gurpinar Tosun B, Arman A, Huskey M, Guran T, Duan S, Bereket A, Whyte MP. Dysosteosclerosis: Clinical and Radiological Evolution Reflecting Genetic Heterogeneity. JBMR Plus 2022; 6:e10663. [PMID: 35991533 PMCID: PMC9382861 DOI: 10.1002/jbm4.10663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/27/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Serap Turan
- Pediatric Endocrinology and Diabetes Marmara University Faculty of Medicine Istanbul Turkey
| | - Steven Mumm
- Division of Bone and Mineral Diseases, Department of Internal Medicine Washington University School of Medicine; St Louis Missouri USA
- Center for Metabolic Bone Disease and Molecular Research Shriners Hospitals for Children – St. Louis St. Louis Missouri USA
| | - Ceren Alavanda
- Medical Genetics Marmara University Faculty of Medicine Istanbul Turkey
| | - Betul Sare Kaygusuz
- Pediatric Endocrinology and Diabetes Marmara University Faculty of Medicine Istanbul Turkey
| | - Busra Gurpinar Tosun
- Pediatric Endocrinology and Diabetes Marmara University Faculty of Medicine Istanbul Turkey
| | - Ahmet Arman
- Medical Genetics Marmara University Faculty of Medicine Istanbul Turkey
| | - Margaret Huskey
- Division of Bone and Mineral Diseases, Department of Internal Medicine Washington University School of Medicine; St Louis Missouri USA
| | - Tulay Guran
- Pediatric Endocrinology and Diabetes Marmara University Faculty of Medicine Istanbul Turkey
| | - Shenghui Duan
- Division of Bone and Mineral Diseases, Department of Internal Medicine Washington University School of Medicine; St Louis Missouri USA
| | - Abdullah Bereket
- Pediatric Endocrinology and Diabetes Marmara University Faculty of Medicine Istanbul Turkey
| | - Michael P. Whyte
- Division of Bone and Mineral Diseases, Department of Internal Medicine Washington University School of Medicine; St Louis Missouri USA
- Center for Metabolic Bone Disease and Molecular Research Shriners Hospitals for Children – St. Louis St. Louis Missouri USA
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Kırkgöz T, Özkan B, Hazan F, Acar S, Nalbantoğlu Ö, Özkaya B, Kulalı MA, Gürsoy S, Ikegawa S, Guo L. A Null Mutation of TNFRSF11A Causes Dysosteosclerosis, Not Osteopetrosis. Front Genet 2022; 13:938814. [PMID: 35812760 PMCID: PMC9263543 DOI: 10.3389/fgene.2022.938814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 06/06/2022] [Indexed: 11/15/2022] Open
Abstract
Dysosteosclerosis (DOS) is a rare sclerosing bone dysplasia characterized by unique osteosclerosis of the long tubular bones and platyspondyly. DOS is inherited in an autosomal recessive manner and is genetically and clinically heterogeneous. To date, four individuals with DOS who have five different TNFRSF11A mutations have been reported. Based on their data, it is hypothesized that mutations producing aberrant mutant RANK proteins (missense or truncated or elongated) cause DOS, while null mutations lead to osteopetrosis, autosomal recessive 7 (OPTB7). Herein, we present the fifth case of TNFRSF11A-associated DOS with a novel homozygous frame-shift mutation (c.19_31del; p.[Arg7CysfsTer172]). The mutation is predicted to cause nonsense mutation-mediated mRNA decay (NMD) in all RANK isoform transcripts, resulting in totally null allele. Our findings suggest genotype-phenotype relationship in TNFRSF11A-associated OPTB7 and DOS remains unclear, and that the deficiency of TNFRSF11A functions might cause DOS, rather than osteopetrosis. More data are necessary to understand the phenotypic spectrum caused by TNFRSF11A mutations.
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Affiliation(s)
- Tarık Kırkgöz
- Division of Pediatric Endocrinology, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
| | - Behzat Özkan
- Division of Pediatric Endocrinology, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
| | - Filiz Hazan
- Department of Medical Genetics, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
| | - Sezer Acar
- Division of Pediatric Endocrinology, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
- *Correspondence: Sezer Acar, ; Long Guo,
| | - Özlem Nalbantoğlu
- Division of Pediatric Endocrinology, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
| | - Beyhan Özkaya
- Division of Pediatric Endocrinology, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
| | - Melike Ataseven Kulalı
- Division of Pediatric Genetics, School of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Semra Gürsoy
- Division of Pediatric Genetics, Dr. Behçet Uz Children’s Education and Research Hospital, Izmir, Turkey
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | - Long Guo
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
- *Correspondence: Sezer Acar, ; Long Guo,
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