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Dubail J, Rondeau S, Michot C, Baujat G, Capri Y, Thévenon J, Charpie M, Pejin Z, Phan G, Huber C, Cormier-Daire V. Identification of kinesin family member (KIF22) homozygous variants in spondyloepimetaphyseal dysplasia with joint laxity, lepdodactylic type and demonstration of proteoglycan biosynthesis impairment. J Bone Miner Res 2024; 39:287-297. [PMID: 38477767 DOI: 10.1093/jbmr/zjad020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/19/2023] [Accepted: 11/23/2023] [Indexed: 03/14/2024]
Abstract
Heterozygous variants in KIF22, encoding a kinesin-like protein, are responsible for spondyloepimetaphyseal dysplasia with joint laxity, leptodactilic type (lepto-SEMDJL), characterized by short stature, flat face, generalized joint laxity with multiple dislocations, and progressive scoliosis and limb deformity. By targeted gene sequencing analysis, we identified a homozygous KIF22 variant (NM_007317.3: c.146G>A, p.Arg49Gln) in 3 patients from 3 unrelated families. The clinical features appeared similar to those of patients carrying heterozygous KIF22 variant (c.443C>T or c.446G>A), although the spinal involvement appeared later and was less severe in patients with a recessive variant. Relatives harboring the c.146G>A variant at the heterozygous state were asymptomatic. The homozygous KIF22 variant c.146G>A affected a conserved residue located in the active site and potentially destabilized ATP binding. RT-PCR and western blot analyses demonstrated that both dominant and recessive KIF22 variants do not affect KIF22 mRNA and protein expression in patient fibroblasts compared to controls. As lepto-SEMDJL presents phenotypic overlap with chondrodysplasias with multiple dislocations (CMD), related to defective proteoglycan biosynthesis, we analyzed proteoglycan synthesis in patient skin fibroblasts. Compared to controls, DMMB assay showed a significant decrease of total sulfated proteoglycan content in culture medium but not in the cell layer, and immunofluorescence demonstrated a strong reduction of staining for chondroitin sulfates but not for heparan sulfates, similarly in patients with recessive or dominant KIF22 variants. These data identify a new recessive KIF22 pathogenic variant and link for the first time KIF22 pathogenic variants to altered proteoglycan biosynthesis and place the lepto-SEMDJL in the CMD spectrum.
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Affiliation(s)
- Johanne Dubail
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
| | - Sophie Rondeau
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
- Reference Center for Skeletal Dysplasia, Necker-Enfants Malades Hospital, AP-HP, Paris 75015, France
| | - Caroline Michot
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
- Reference Center for Skeletal Dysplasia, Necker-Enfants Malades Hospital, AP-HP, Paris 75015, France
| | - Geneviève Baujat
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
- Reference Center for Skeletal Dysplasia, Necker-Enfants Malades Hospital, AP-HP, Paris 75015, France
| | - Yline Capri
- Département de Génétique, Hôpital Robert Debré, APHP-Nord, Paris 75019, France
| | - Julien Thévenon
- Service de Génétique, Génomique et Procréation, Hôpital Couple-Enfant CHU Grenoble Alpes, Grenoble 38700, France
| | - Maelle Charpie
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
- Reference Center for Skeletal Dysplasia, Necker-Enfants Malades Hospital, AP-HP, Paris 75015, France
| | - Zagorka Pejin
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
- Service de chirurgie orthopédique, Necker-Enfants Malades Hospital, AP-HP, Paris 75015, France
| | - Gilles Phan
- Université Paris Cité, CNRS, CiTCoM, Paris 75006, France
| | - Céline Huber
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
| | - Valérie Cormier-Daire
- Paris Cité University, INSERM UMR 1163, Imagine Institute, Paris 75015, France
- Reference Center for Skeletal Dysplasia, Necker-Enfants Malades Hospital, AP-HP, Paris 75015, France
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Merchant N, Polgreen LE, Rosenfeld RG. What Is the Role for Pediatric Endocrinologists in the Management of Skeletal Dysplasias? J Clin Endocrinol Metab 2024; 109:e1410-e1414. [PMID: 38078681 PMCID: PMC11031243 DOI: 10.1210/clinem/dgad726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Indexed: 04/21/2024]
Abstract
Children with skeletal dysplasias have not been consistently managed by pediatric endocrinologists despite the recognized expertise of these practitioners in managing genetic growth disorders. Growth-altering treatments have broadened the role of the pediatric endocrinologist to manage and sometimes become primary coordinators for genetic disorders such as Turner syndrome and Prader-Willi syndrome. We illustrate how recent advances in understanding the pathophysiology of skeletal disorders and the development of targeted treatments provide an opportunity for pediatric endocrinologists to further expand their role in managing certain skeletal dysplasias, including achondroplasia.
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Affiliation(s)
- Nadia Merchant
- Department of Endocrinology and Diabetes, Children's National Hospital, Washington, DC 20010, USA
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC 20037, USA
| | - Lynda E Polgreen
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Ron G Rosenfeld
- Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA
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Arponen H, Vakkilainen S, Tomnikov N, Kallonen T, Silling S, Mäkitie O, Rautava J. Altered oral microbiome, but normal human papilloma virus prevalence in cartilage-hair hypoplasia patients. Orphanet J Rare Dis 2024; 19:169. [PMID: 38637854 PMCID: PMC11027548 DOI: 10.1186/s13023-024-03164-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 03/30/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND Cartilage-hair hypoplasia (CHH) is a rare syndromic immunodeficiency with metaphyseal chondrodysplasia and increased risk of malignancy. In this cross-sectional observational study, we examined HPV status and oral microbiome in individuals with CHH. Oral brush samples were collected from 20 individuals with CHH (aged 5-59 years) and 41 controls (1-69 years). Alpha HPVs (43 types) were tested by nested PCR followed by bead-based probe hybridization. Separately, beta-, gamma-, mu- and nu- HPV types were investigated, and a genome-based bacterial microbiome sequencing was performed. RESULTS We found a similar alpha HPV prevalence in individuals with CHH (45%) and controls (36%). The HPV types of individuals with CHH were HPV-16 (25%), 27, 28, and 78, and of controls HPV-3, 16 (21%), 27, and 61. Beta HPV positivity and combined beta/gamma/mu/nu prevalence was detected in 11% and 11% of individuals with CHH and in 5% and 3% of the controls, respectively. Individuals with CHH differed from the controls in bacterial microbiota diversity, richness, and in microbial composition. Individuals with CHH had lower abundance of species Mitsuokella sp000469545, Parascardovia denticolens, Propionibacterium acidifaciens, UMGS1907 sp004151455, Salinicola halophilus, Haemophilus_A paraphrohaemolyticus, Fusobacterium massiliense, and Veillonella parvula, and higher abundance of Slackia exigua. CONCLUSIONS Individuals with CHH exhibit similar prevalence of HPV DNA but different bacterial microbiota on their oral mucosa compared to healthy controls. This may partly explain the previously observed high prevalence of oral diseases in CHH, and regular oral examination is warranted.
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Affiliation(s)
- Heidi Arponen
- Department of Oral and Maxillofacial Diseases, Helsinki University Hospital Head and Neck Center, University of Helsinki, Haartmaninkatu 1, Helsinki, Finland.
- Pediatric Research Center, Children's Hospital, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.
- Western Uusimaa Wellbeing Services County, Espoo, Finland.
| | - Svetlana Vakkilainen
- Pediatric Research Center, Children's Hospital, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Natalie Tomnikov
- Institute of Biomedicine, University of Turku, Turku, Finland
- Clinical Microbiology, Turku University Hospital, Turku, Finland
| | - Teemu Kallonen
- Institute of Biomedicine, University of Turku, Turku, Finland
- Clinical Microbiology, Turku University Hospital, Turku, Finland
| | - Steffi Silling
- National Reference Centre for Papilloma- and Polyomaviruses, Institute of Virology, Faculty of Medicine, University Hospital Cologne, Cologne, Germany
| | - Outi Mäkitie
- Pediatric Research Center, Children's Hospital, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Jaana Rautava
- Department of Oral and Maxillofacial Diseases, Helsinki University Hospital Head and Neck Center, University of Helsinki, Haartmaninkatu 1, Helsinki, Finland
- Institute of Biomedicine, University of Turku, Turku, Finland
- Department of Pathology, HUSLAB Diagnostics, Helsinki, Finland
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Zhou S, Quan C, Zhang Z, Gong S, Nawaz S, Zhang Y, Kulyar MFEA, Mo Q, Li J. Leucine improves thiram-induced tibial dyschondroplasia and gut microbiota dysbiosis in broilers. Ecotoxicol Environ Saf 2024; 275:116260. [PMID: 38564867 DOI: 10.1016/j.ecoenv.2024.116260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/11/2024] [Accepted: 03/23/2024] [Indexed: 04/04/2024]
Abstract
Thiram, a commonly used agricultural insecticide and fungicide, has been found to cause tibial dyschondroplasia (TD) in broilers, leading to substantial economic losses in the poultry industry. In this study, we aimed to investigate the mechanism of action of leucine in mitigating thiram-induced TD and leucine effects on gut microbial diversity. Broiler chickens were randomly divided into five equal groups: control group (standard diet), thiram-induced group (thiram 80 mg/kg from day 3 to day 7), and different concentrations of leucine groups (0.3%, 0.6%, 0.9% leucine from day 8 to day 18). Performance indicator analysis and tibial parameter analysis showed that leucine positively affected thiram-induced TD broilers. Additionally, mRNA expressions and protein levels of HIF-1α/VEGFA and Ihh/PTHrP genes were determined via quantitative real-time polymerase chain reaction and western blot. The results showed that leucine recovered lameness disorder by downregulating the expression of HIF-1α, VEGFA, and PTHrP while upregulating the expression of Ihh. Moreover, the 16 S rRNA sequencing revealed that the leucine group demonstrated a decrease in the abundance of harmful bacteria compared to the TD group, with an enrichment of beneficial bacteria responsible for producing short-chain fatty acids, including Alistipes, Paludicola, CHKCI002, Lactobacillus, and Erysipelatoclostridium. In summary, the current study suggests that leucine could improve the symptoms of thiram-induced TD and maintain gut microbiota homeostasis.
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Affiliation(s)
- Shimeng Zhou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Chuxian Quan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhao Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Saisai Gong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Shah Nawaz
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yan Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | | | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China.
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China.
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Harris SR. Growing up with Marshall syndrome: A case report from infancy to age 12.5 years. Am J Med Genet A 2024; 194:e63488. [PMID: 38062645 DOI: 10.1002/ajmg.a.63488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/13/2023] [Accepted: 11/18/2023] [Indexed: 03/10/2024]
Abstract
Marshall syndrome is an extremely rare genetic disorder usually diagnosed in infancy with a prevalence of <1 in 1 million. Based on the literature reviewed, this is the first case report to provide a longitudinal history of a child with Marshall syndrome (from birth to age 12.5 years). This longitudinal case report arose in part from desires of this child's parents to share the story of their early fears at her initial diagnosis and compare those to how well she has turned out.
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Affiliation(s)
- Susan R Harris
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Hordyjewska-Kowalczyk E, Wuyts W, Boeckx N, Verdonck A, Hendrickx G, Mortier G. RUNX2-related metaphyseal dysplasia with maxillary hypoplasia: A rare skeletal disorder resembling SFRP4-related Pyle disease. Clin Genet 2024; 105:434-439. [PMID: 38108099 DOI: 10.1111/cge.14474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
Metaphyseal dysplasia with maxillary hypoplasia with or without brachydactyly (MDMHB) is an ultra-rare skeletal dysplasia caused by heterozygous intragenic RUNX2 duplications, comprising either exons 3 to 5 or exons 3 to 6 of RUNX2. In this study, we describe a 14-year-old Belgian boy with metaphyseal dysplasia with maxillary hypoplasia but without brachydactyly. Clinical and radiographic examination revealed mild facial dysmorphism, dental anomalies, enlarged clavicles, genua valga and metaphyseal flaring and thin cortices with an osteoporotic skeletal appearance. Exome sequencing led to the identification of a de novo heterozygous tandem duplication within RUNX2, encompassing exons 3 to 7. This duplication is larger than the ones previously reported in MDMHB cases since it extends into the C-terminal activation domain of RUNX2. We review previously reported cases with MDMHB and highlight the resemblance of this disorder with Pyle disease, which may be explained by intersecting molecular pathways between RUNX2 and sFRP4. This study expands our knowledge on the genotypic and phenotypic characteristics of MDMHB and the role of RUNX2 in rare bone disorders.
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Affiliation(s)
- Ewa Hordyjewska-Kowalczyk
- Laboratory for Skeletal Dysplasia Research, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Wim Wuyts
- Department of Medical Genetics, Antwerp University Hospital and University of Antwerp, Edegem, Belgium
| | - Nele Boeckx
- Department of Medical Genetics, Antwerp University Hospital and University of Antwerp, Edegem, Belgium
| | - An Verdonck
- Department of Oral Health Sciences - Orthodontics, KU Leuven, Leuven, Belgium
- Service of Dentistry, University Hospitals Leuven, Leuven, Belgium
| | - Gretl Hendrickx
- Laboratory for Skeletal Dysplasia Research, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Geert Mortier
- Laboratory for Skeletal Dysplasia Research, Department of Human Genetics, KU Leuven, Leuven, Belgium
- Centre for Human Genetics, University Hospital Leuven, Leuven, Belgium
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Jiang Y, Lu Y, Xu H, Hu Z, Du R, Zhou Y, Deng Q, Wang X, Liu Y, Wang Y. miR-206a-3p suppresses the proliferation and differentiation of chicken chondrocytes in tibial dyschondroplasia by targeting BMP6. Poult Sci 2024; 103:103534. [PMID: 38401226 PMCID: PMC10906518 DOI: 10.1016/j.psj.2024.103534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/16/2024] [Accepted: 02/03/2024] [Indexed: 02/26/2024] Open
Abstract
The poultry skeletal system serves multiple functions, not only providing structural integrity but also maintaining the balance of essential minerals such as calcium and phosphorus. However, in recent years, the consideration of skeletal traits has been overlooked in the selective breeding of broilers, resulting in an inadequate adaptation of the skeletal system to cope with the rapid increase in body weight. Consequently, this leads to lameness and bone diseases such as tibial dyschondroplasia (TD), which significantly impact the production performance of broilers. Accumulating evidence has shown that microRNAs (miRNA) play a crucial role in the differentiation, formation, and disease of cartilage. However, the miRNA-mediated molecular mechanism underlying chicken TD formation is still poorly understood. The objective of this study was to investigate the biological function and regulatory mechanism of miRNA in chicken TD formation. Based on transcriptome sequencing of tibial cartilage in the healthy group and TD group, miR-206a-3p was found to be highly expressed in TD cartilage. The function of miR-206a-3p was explored through the transfection test of miR-206a-3p mimics and miR-206a-3p inhibitor. In this study, we utilized qRT-PCR, CCK-8, EdU, western blot, and flow cytometry to detect the proliferation, differentiation, and apoptosis of chondrocytes. The results revealed that miR-206a-3p suppressed the proliferation and differentiation of TD chondrocytes while promoting their programmed cell death. Furthermore, through biosynthesis and dual luciferase assays, it was determined that BMP6 was the direct target gene of miR-206a-3p. This finding was further supported by rescue experiments which confirmed the involvement of BMP6 in the regulatory pathway governed by miR-206a-3p. Our results suggest that miR-206a-3p can inhibits the proliferation and differentiation promote apoptosis through the target gene BMP-6 and suppressing the Smad2/3 signaling pathway in chicken TD chondrocytes.
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Affiliation(s)
- Yuru Jiang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuxiang Lu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Hengyong Xu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhi Hu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Ranran Du
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuxin Zhou
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Qingqing Deng
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Xi Wang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yiping Liu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Wang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China.
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Srivastava P, Tyagi A, Bhardwaj C, Kumari A, Kaur H, Seth S, Kaur A, Panigrahi I, Dayal D, Pramanik S, Mandal K. SHOX Variations in Idiopathic Short Stature in North India and a Review of Cases from Asian Countries. J Clin Res Pediatr Endocrinol 2024; 16:41-49. [PMID: 37750395 PMCID: PMC10938528 DOI: 10.4274/jcrpe.galenos.2023.2023-3-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/17/2023] [Indexed: 09/27/2023] Open
Abstract
Objective Short stature homeobox (SHOX) haploinsufficiency underlies idiopathic short stature (ISS) and Leri-Weill dyschondrosteosis. The worldwide prevalence of SHOX variations in ISS varies from 2.5% to 15.0%. The aim of this study was to assess the implication of SHOX variation in ISS in North Indians and compare this with other cases of SHOX variations from Asian population. Methods SHOX gene analysis was carried out by multiplex ligation-dependent probe amplification followed by Sanger sequencing in 54 patients with variable phenotypes. Comparison with other reports in a meta-analysis comprising the current study and 11 previous studies (n=979) was performed. Results SHOX analysis resulted in 12.9% positivity (7.4% deletions and 5.5% duplications). SHOX association was seen significantly related to gender, with predominance in females (p=0.047). Short arms and forearms were the only significantly associated trait seen in 51.9% of children. The overall prevalence of SHOX variation was 15.2% in Asians with ISS. No significant difference was found in geographical region-specific analysis. Conclusion This study summarises findings from the last decade and provides an updated picture of the prevalence of SHOX variations in Asians, emphasizing their potential as therapeutic targets in ISS patients. Further high quality, large investigations including functional validation is warranted to validate this association.
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Affiliation(s)
- Priyanka Srivastava
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Ankita Tyagi
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Chitra Bhardwaj
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Anu Kumari
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Harvinder Kaur
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Child Growth and Anthropology Unit, Chandigarh, India
| | - Saurabh Seth
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Anupriya Kaur
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Inusha Panigrahi
- Advanced Pediatrics Centre (APC), Postgraduate Institute of Medical Education & Research (PGIMER), Genetic Metabolic Unit, Chandigarh, India
| | - Devi Dayal
- Advanced Pediatrics Centre, Postgraduate Institute of Medical Education & Research (PGIMER), Pediatric Endocrinology Unit, Chandigarh, India
| | | | - Kausik Mandal
- Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Department of Medical Genetics, Lucknow, India
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Xu H, Jiang Y, Lu Y, Hu Z, Du R, Zhou Y, Liu Y, Zhao X, Tian Y, Yang C, Zhang Z, Qiu M, Wang Y. Thiram exposure induces tibial dyschondroplasia in broilers via the regulation effect of circ_003084/miR-130c-5p/BMPR1A crosstalk on chondrocyte proliferation and differentiation. J Hazard Mater 2024; 465:133071. [PMID: 38008051 DOI: 10.1016/j.jhazmat.2023.133071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/20/2023] [Accepted: 11/21/2023] [Indexed: 11/28/2023]
Abstract
Thiram, an agricultural insecticide, has been demonstrated to induce tibial dyschondroplasia (TD) in avian species. Circular RNA (circRNAs), a novel class of functional biological macromolecules characterized by their distinct circular structure, play crucial roles in various biological processes and diseases. Nevertheless, the precise regulatory mechanism underlying non-coding RNA involvement in thiram-induced broiler tibial chondrodysplasia remains elusive. In this study, we established a broiler model of thiram exposure for 10 days to assess TD and obtain a ceRNA network by RNA sequencing. By analyzing the differentially expressed circRNAs network, we id entify that circ_003084 was significantly upregulated in TD cartilage. Elevated circ_003084 inhibited TD chondrocytes proliferation and differentiation in vitro but promote apoptosis. Mechanistically, circ_003084 competitively binds to miR-130c-5p and prevents miR-130c-5p to decrease the level of BMPR1A, which upregulates the expression of apoptosis genes Caspase 3, Caspase 9, Bax and Bcl2, and finally facilitates cell apoptosis. Taken together, these findings imply that circ_003084/miR-130c-5p/BMPR1A interaction regulated TD chicken chondrocyte proliferation, apoptosis, and differentiation. This is the first work to reveal the mechanism of regulation of circRNA-related ceRNA on thiram-induced TD, offering a key reference for environmental toxicology.
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Affiliation(s)
- Hengyong Xu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuru Jiang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuxiang Lu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhi Hu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Ranran Du
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuxin Zhou
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yiping Liu
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoling Zhao
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China
| | - Yaofu Tian
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Chaowu Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu 610066, China
| | - Zengrong Zhang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu 610066, China
| | - Mohan Qiu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu 610066, China
| | - Yan Wang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural University, Chengdu 611130, China.
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10
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Aldrian D, Bochdansky C, Kavallar AM, Mayerhofer C, Deeb A, Habeb A, Romera Rabasa A, Khadilkar A, Uçar A, Knoppke B, Zafeiriou D, Lang-Muritano M, Miqdady M, Judmaier S, McLin V, Furdela V, Müller T, Vogel GF. Natural history of Wolcott-Rallison syndrome: A systematic review and follow-up study. Liver Int 2024; 44:811-822. [PMID: 38230874 DOI: 10.1111/liv.15834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND AND AIMS To systematically review the literature for reports on Wolcott-Rallison syndrome, focusing on the spectrum and natural history, genotype-phenotype correlations, patient and native liver survival, and long-term outcomes. METHODS PubMed, Livio, Google Scholar, Scopus and Web of Science databases were searched. Data on genotype, phenotype, therapy, cause of death and follow-up were extracted. Survival and correlation analyses were performed. RESULTS Sixty-two studies with 159 patients met the inclusion criteria and additional 30 WRS individuals were collected by personal contact. The median age of presentation was 2.5 months (IQR 2) and of death was 36 months (IQR 50.75). The most frequent clinical feature was neonatal diabetes in all patients, followed by liver impairment in 73%, impaired growth in 72%, skeletal abnormalities in 59.8%, the nervous system in 37.6%, the kidney in 35.4%, insufficient haematopoiesis in 34.4%, hypothyroidism in 14.8% and exocrine pancreas insufficiency in 10.6%. Episodes of acute liver failure were frequently reported. Liver transplantation was performed in six, combined liver-pancreas in one and combined liver-pancreas-kidney transplantation in two individuals. Patient survival was significantly better in the transplant cohort (p = .0057). One-, five- and ten-year patient survival rates were 89.4%, 65.5% and 53.1%, respectively. Liver failure was reported as the leading cause of death in 17.9% of cases. Overall survival was better in individuals with missense mutations (p = .013). CONCLUSION Wolcott-Rallison syndrome has variable clinical courses. Overall survival is better in individuals with missense mutations. Liver- or multi-organ transplantation is a feasible treatment option to improve survival.
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Affiliation(s)
- Denise Aldrian
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Clemens Bochdansky
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Anna M Kavallar
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph Mayerhofer
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Asma Deeb
- Paediatric Endocrinology Division, Sheikh Shakhbout Medical City, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Abdelhadi Habeb
- Department of Pediatrics, Prince Mohamed bin Abdulaziz Hospital, National Guard Health Affairs, Madinah, Saudi Arabia
| | - Andrea Romera Rabasa
- Department of Pediatric Anesthesia, Gregorio Marañón University Hospital, Madrid, Spain
| | - Anuradha Khadilkar
- Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India
| | - Ahmet Uçar
- Department of Pediatric Endocrinology & Diabetes, University of Health Sciences, Şişli Hamidiye Etfal Health Practices & Research Centre, Istanbul, Turkey
| | - Birgit Knoppke
- University Children's Hospital Regensburg (KUNO), University Medical Center Regensburg, Regensburg, Germany
| | - Dimitrios Zafeiriou
- 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University, Thessaloniki, Greece
| | - Mariarosaria Lang-Muritano
- Department of Endocrinology and Diabetology and Children's Research Centre, University Children's Hospital, Zurich, Switzerland
| | - Mohamad Miqdady
- Division of Pediatric Gastroenterology, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
| | - Sylvia Judmaier
- Department of Paediatrics, LKH Hochsteiermark/Standort Leoben, Leoben, Austria
| | - Valerié McLin
- Department of Pediatrics, Gynecology and Obstetrics, Swiss Pediatric Liver Center, University of Geneva, Geneva, Switzerland
| | - Viktoriya Furdela
- Department of Pediatrics, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Thomas Müller
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
| | - Georg F Vogel
- Department of Paediatrics I, Medical University of Innsbruck, Innsbruck, Austria
- Institute of Cell Biology, Medical University of Innsbruck, Innsbruck, Austria
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11
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Singh S, Jacob P, Patil SJ, Muranjan M, Shah H, Girisha KM, Bhavani GS. Indian patients with CHST3-related chondrodysplasia with congenital joint dislocations. Am J Med Genet A 2024; 194:e63422. [PMID: 37876363 DOI: 10.1002/ajmg.a.63422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 10/26/2023]
Abstract
CHST3-related chondrodysplasia with congenital joint dislocations (CDCJD, #MIM 143095), is a rare genetic skeletal disorder caused by biallelic loss of function variants in CHST3. CHST3 is critical for the sulfation of chondroitin sulfate. This study delineates the clinical presentation of nine individuals featuring the key symptoms of CDCJD; congenital joint (knee and elbow) dislocations, short trunk short stature progressive vertebral anomalies, and metacarpal shortening. Additional manifestations include irregular distal femoral epiphysis, supernumerary carpal ossification centers, bifid humerus, club foot, and cardiac abnormalities. Sanger sequencing was carried out to investigate molecular etiology in eight patients and exome sequencing in one. Genetic testing revealed five homozygous variants in CHST3 (four were novel and one was previously reported). All these variants are located on sulfotransferase domain of CHST3 protein and were classified as pathogenic/ likely pathogenic. We thus report on nine individuals with CHST3-related chondrodysplasia with congenital joint dislocations from India and suggest monitoring the health of cardiac valves in this condition.
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Affiliation(s)
- Swati Singh
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Prince Jacob
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Siddaramappa J Patil
- Division of Medical Genetics, Mazumdar Shaw Medical Center, Narayana Hrudayalaya Hospitals, Bangalore, Karnataka, India
| | - Mamta Muranjan
- Department of Pediatrics, Genetic Division, Seth GS Medical College, King Edward Memorial Hospital, Mumbai, Maharashtra, India
| | - Hitesh Shah
- Department of Pediatric Orthopedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Katta M Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of Genetics, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Gandham SriLakshmi Bhavani
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
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12
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Ramos-Mejía R, Heath KE, Modamio-Høybjør S, Huckstadt V, Calcagni J, Remondino R, Fano V. Unexpected findings in cervical spine in spondylometaphyseal dysplasia Sutcliff type FN1-related. Am J Med Genet A 2024; 194:e63469. [PMID: 37940834 DOI: 10.1002/ajmg.a.63469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/11/2023] [Accepted: 10/27/2023] [Indexed: 11/10/2023]
Abstract
The autosomal dominant spondylometaphyseal dysplasia Sutcliff type or corner fracture type FN1-related is characterized by a combination of metaphyseal irregularities simulating fractures ("corner fractures"), developmental coxa vara, and vertebral changes. It is linked to heterozygous mutations in FN1 and COL2A1. Vertebral changes as delayed vertebral ossification, ovoid vertebral bodies, anterior vertebral wedging, and platyspondyly have been observed in this condition, while odontoid abnormalities have not been reported. We report an odontoid anomaly in a girl with SMD-CF FN1-related showing the heterozygous variant c.505T>A; p.(Cys169Ser), presenting at 11.9 years of age with acute quadriparesis. Images showed spinal cord compression and injury associated with os odontoideum and C1-C2 instability. She required decompression and instrumented occipitocervical stabilization, suffering from residual paraparesis. This paper describes the first case of SMD-CF FN1-related accompanied by odontoid anomalies.
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Affiliation(s)
- Rosario Ramos-Mejía
- Growth and Development Department, Hospital Garrahan, Buenos Aires, Argentina
| | - Karen E Heath
- Institute of Medical & Molecular Genetics (INGEMM), IdiPAZ, Hospital Universitario la Paz, UAM, Madrid, Spain
- Skeletal Dysplasia Multidisciplinary Unit (UMDE-ERN BOND), Hospital Universitario la Paz, Madrid, Spain
- European Research Network on Rare BONe Disorders (ERN-BOND), Madrid, Spain
- CIBERER, ISCIII, Madrid, Spain
| | - Silvia Modamio-Høybjør
- Institute of Medical & Molecular Genetics (INGEMM), IdiPAZ, Hospital Universitario la Paz, UAM, Madrid, Spain
- Skeletal Dysplasia Multidisciplinary Unit (UMDE-ERN BOND), Hospital Universitario la Paz, Madrid, Spain
- European Research Network on Rare BONe Disorders (ERN-BOND), Madrid, Spain
| | | | - Julián Calcagni
- Spinal Pathology Department, Hospital Garrahan, Buenos Aires, Argentina
| | - Rodrigo Remondino
- Spinal Pathology Department, Hospital Garrahan, Buenos Aires, Argentina
| | - Virginia Fano
- Growth and Development Department, Hospital Garrahan, Buenos Aires, Argentina
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13
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Ouedraogo ZG, Janel C, Janin A, Millat G, Langlais S, Pontier B, Biard M, Lepage M, Francannet C, Laffargue F, Creveaux I. Relevance of Extending FGFR3 Gene Analysis in Osteochondrodysplasia to Non-Coding Sequences: A Case Report. Genes (Basel) 2024; 15:225. [PMID: 38397214 PMCID: PMC10888313 DOI: 10.3390/genes15020225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Skeletal dysplasia, also called osteochondrodysplasia, is a category of disorders affecting bone development and children's growth. Up to 552 genes, including fibroblast growth factor receptor 3 (FGFR3), have been implicated by pathogenic variations in its genesis. Frequently identified causal mutations in osteochondrodysplasia arise in the coding sequences of the FGFR3 gene: c.1138G>A and c.1138G>C in achondroplasia and c.1620C>A and c.1620C>G in hypochondroplasia. However, in some cases, the diagnostic investigations undertaken thus far have failed to identify the causal anomaly, which strengthens the relevance of the diagnostic strategies being further refined. We observed a Caucasian adult with clinical and radiographic features of achondroplasia, with no common pathogenic variant. Exome sequencing detected an FGFR3(NM_000142.4):c.1075+95C>G heterozygous intronic variation. In vitro studies showed that this variant results in the aberrant exonization of a 90-nucleotide 5' segment of intron 8, resulting in the substitution of the alanine (Ala359) for a glycine (Gly) and the in-frame insertion of 30 amino acids. This change may alter FGFR3's function. Our report provides the first clinical description of an adult carrying this variant, which completes the phenotype description previously provided in children and confirms the recurrence, the autosomal-dominant pathogenicity, and the diagnostic relevance of this FGFR3 intronic variant. We support its inclusion in routinely used diagnostic tests for osteochondrodysplasia. This may increase the detection rate of causal variants and therefore could have a positive impact on patient management. Finally, FGFR3 alteration via non-coding sequence exonization should be considered a recurrent disease mechanism to be taken into account for new drug design and clinical trial strategies.
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Affiliation(s)
- Zangbéwendé Guy Ouedraogo
- Service de Biochimie et Génétique Moléculaire, CHU Gabriel Montpied, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France; (C.J.); (S.L.); (M.L.)
- Université Clermont Auvergne, CNRS, Inserm, iGReD, 63001 Clermont-Ferrand, France
| | - Caroline Janel
- Service de Biochimie et Génétique Moléculaire, CHU Gabriel Montpied, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France; (C.J.); (S.L.); (M.L.)
| | - Alexandre Janin
- Unité Fonctionnelle Cardiogénétique, Moléculaire, Centre de Biologie et Pathologie Est, Hospices Civils de Lyon, 69677 Bron, France; (A.J.); (G.M.)
- CNRS UMR5261, INSERM U1315, Pathophysiology and Genetics of Neuron and Muscle, Institut Neuromyogène, Université Claude Bernard Lyon 1, 69008 Lyon, France
| | - Gilles Millat
- Unité Fonctionnelle Cardiogénétique, Moléculaire, Centre de Biologie et Pathologie Est, Hospices Civils de Lyon, 69677 Bron, France; (A.J.); (G.M.)
- CNRS UMR5261, INSERM U1315, Pathophysiology and Genetics of Neuron and Muscle, Institut Neuromyogène, Université Claude Bernard Lyon 1, 69008 Lyon, France
| | - Sarah Langlais
- Service de Biochimie et Génétique Moléculaire, CHU Gabriel Montpied, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France; (C.J.); (S.L.); (M.L.)
| | - Bénédicte Pontier
- Service de Génétique Médicale, CHU Estaing, CHU Clermont-Ferrand, 63100 Clermont-Ferrand, France; (B.P.); (C.F.); (F.L.)
| | - Marie Biard
- Service de Radiologie Pédiatrique, CHU Estaing, CHU Clermont-Ferrand, 63100 Clermont-Ferrand, France;
| | - Mathis Lepage
- Service de Biochimie et Génétique Moléculaire, CHU Gabriel Montpied, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France; (C.J.); (S.L.); (M.L.)
| | - Christine Francannet
- Service de Génétique Médicale, CHU Estaing, CHU Clermont-Ferrand, 63100 Clermont-Ferrand, France; (B.P.); (C.F.); (F.L.)
| | - Fanny Laffargue
- Service de Génétique Médicale, CHU Estaing, CHU Clermont-Ferrand, 63100 Clermont-Ferrand, France; (B.P.); (C.F.); (F.L.)
| | - Isabelle Creveaux
- Service de Biochimie et Génétique Moléculaire, CHU Gabriel Montpied, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France; (C.J.); (S.L.); (M.L.)
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14
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Lyu Y, Qi F, Fei Z, Gao H, Gu C. [Clinical phenotype and genetic analysis of a child featuring short stature and multiple skeletal dysplasia]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2024; 41:244-249. [PMID: 38311568 DOI: 10.3760/cma.j.cn511374-20230511-00277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
OBJECTIVE To analyze the clinical phenotype and genetic basis for a child featuring familial short stature. METHODS A child who was admitted to Huzhou Maternal and Child Health Care Hospital on October 7, 2021 for growth retardation and pectus carinatum was selected as the study subject. Physical exam and medical imaging was performed. The child was subjected to whole exome sequencing, and candidate variants were verified by Sanger sequencing and bioinformatic analysis. RESULTS The child, a 1-year-old male, had manifested with slightly short stature (Z = -2.03), midfacial dysplasia, and multiple skeletal dysplasia such as pectus carinatum, irregular vertebral morphology, and defect of lumbar anterior bones. His mother, maternal grandmother and great-maternal grandfather also had short stature. WES revealed that the child has harbored a heterozygous c.2858dupA (p.Asp953GlufsTer476) frameshifting variant of the ACAN gene, which was inherited from his mother. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the c.2858dup (p.Sp953Glufster476) variant was classified as likely pathogenic (PVS1+PM2_Supporting). The patient has shown marked improved height after receiving 11 months of treatment with human recombinant growth hormone (supplemental dose) starting from 20 months of age. CONCLUSION The ACAN: c.2858dup (p.Asp953GlufsTer476) variant probably underlay the pathogenesis of short stature in this child.
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Affiliation(s)
- Yongxue Lyu
- Department of Pediatric Health Care, Huzhou Maternity and Child Health Care Hospital, Huzhou, Zhejiang 313000, China.
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15
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Seiersen KV, Henriksen TB, Andelius TCK, Andreasen L, Diemer T, Gudmundsdottir G, Vogel I, Gjørup V, Gregersen PA. Combined achondroplasia and short stature homeobox-containing (SHOX) gene deletion in a Danish infant. Eur J Med Genet 2024; 67:104894. [PMID: 38070826 DOI: 10.1016/j.ejmg.2023.104894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/23/2023] [Accepted: 12/03/2023] [Indexed: 01/29/2024]
Abstract
Short stature or shortening of the limbs can be the result of a variety of genetic variants. Achondroplasia is the most common cause of disproportionate short stature and is caused by pathogenic variants in the fibroblast growth factor receptor 3 gene (FGFR3). Short stature homeobox (SHOX) deficiency is caused by loss or defects of the SHOX gene or its enhancer region. It is associated with a spectrum of phenotypes ranging from normal stature to Léri-Weill dyschondrosteosis characterized by mesomelia and short stature or the more severe Langer mesomelic dysplasia in case of biallelic SHOX deficiency. Little is known about the interactions and phenotypic consequences of achondroplasia in combination with SHOX deficiency, as the literature on this subject is scarce, and no genetically confirmed clinical reports exist. We present the clinical findings in an infant girl with concurrent achondroplasia and SHOX deficiency. We conclude that the clinical findings in infancy are phenotypically compatible with achondroplasia, with no features of the SHOX deficiency evident. This may change over time, as some features of SHOX deficiency only become evident later in life.
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Affiliation(s)
- Kasper V Seiersen
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Health, Aarhus University, Aarhus, Denmark.
| | - Tine B Henriksen
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Health, Aarhus University, Aarhus, Denmark
| | - Ted C K Andelius
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Lotte Andreasen
- Department of Clinical Genetics, Aarhus University Hospital, Denmark
| | - Tue Diemer
- Department of Clinical Genetics, Aalborg University Hospital, Aalborg, Denmark
| | | | - Ida Vogel
- Department of Clinical Medicine, Health, Aarhus University, Aarhus, Denmark; Department of Clinical Genetics, Aarhus University Hospital, Denmark; Center for Fetal Diagnostics, Aarhus University Hospital, Aarhus, Denmark
| | - Vibike Gjørup
- Department of Gynaecology and Obstetrics, Aarhus University Hospital, Aarhus, Denmark
| | - Pernille A Gregersen
- Department of Clinical Medicine, Health, Aarhus University, Aarhus, Denmark; Department of Clinical Genetics, Aarhus University Hospital, Denmark; Centre for Rare Diseases, Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
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16
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Lacarrubba-Flores MDJ, da Costa Silveira K, Silveira C, Carvalho BS, Cavalcanti DP. A mesomelic skeletal dysplasia, Kantaputra-like, not related to HOXD cluster region, and with phenotypic gender differences. Am J Med Genet A 2024; 194:328-336. [PMID: 37846940 DOI: 10.1002/ajmg.a.63444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/30/2023] [Accepted: 10/06/2023] [Indexed: 10/18/2023]
Abstract
Mesomelic skeletal dysplasia is a heterogeneous group of skeletal disorders that has grown since the molecular basis of these conditions is in the process of research and discovery. Here, we report a Brazilian family with eight affected members over three generations with a phenotype similar to mesomelic Kantaputra dysplasia. This family presents marked shortening of the upper limbs with hypotrophy of the lower limbs and clubfeet without synostosis. Array-based CNV analysis and exome sequencing of four family members failed to show any region or gene candidate. Interestingly, males were more severely affected than females in this family, suggesting that gender differences could play a role in the phenotypic expressivity of this condition.
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Affiliation(s)
- Maria Dora Jazmin Lacarrubba-Flores
- Skeletal Dysplasias Group, Department of Translational Medicine-Area of Medical Genetics, Medical Sciences Faculty, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Karina da Costa Silveira
- Skeletal Dysplasias Group, Department of Translational Medicine-Area of Medical Genetics, Medical Sciences Faculty, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Cynthia Silveira
- Skeletal Dysplasias Group, Department of Translational Medicine-Area of Medical Genetics, Medical Sciences Faculty, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Benilton S Carvalho
- Department of Statistics, Institute of Mathematics, Statistics and Scientific Computing, University of Campinas (UNICAMP), São Paulo, Brazil
| | - Denise Pontes Cavalcanti
- Skeletal Dysplasias Group, Department of Translational Medicine-Area of Medical Genetics, Medical Sciences Faculty, State University of Campinas (UNICAMP), São Paulo, Brazil
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17
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Mondkar SA, Khadilkar V, Kasegaonkar P, Khadilkar A. SOFT syndrome with kohlschutter-Tonz syndrome. J Postgrad Med 2024; 70:56-59. [PMID: 37706418 PMCID: PMC10947733 DOI: 10.4103/jpgm.jpgm_1001_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/23/2023] [Accepted: 07/24/2023] [Indexed: 09/15/2023] Open
Abstract
We report a 2.2 year-old-boy, born of consanguineous marriage, referred for short stature, with history of neonatal death and skeletal deformities in his older sibling. Rhizo-mesomelic dwarfism was detected antenatally. Within 24 hours of birth, he developed multiple seizures. Examination revealed severe short stature, dolichocephaly, broad forehead, deep set eyes, low set ears, bulbous nose, small, irregular teeth, pointed chin, and triangular facies. He had rhizomelic shortening, stubby fingers, pes planus, and scanty hair. Neurological evaluation revealed ataxia, hypotonia, and global developmental delay. Skeletal survey radiograph revealed shallow acetabuli, short femurs and humerus, short, broad metacarpals and short cone-shaped phalanges with cupping of phalangeal bases. Clinical exome analysis revealed homozygous mutations involving the POC1A gene and the SLC13A5 gene responsible for SOFT syndrome and Kohlschutter-Tonz syndrome respectively, which were inherited from the parents. Both these syndromes are extremely rare, and their co-occurrence is being reported for the first time.
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Affiliation(s)
- SA Mondkar
- Growth and Pediatric Endocrinology Unit, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, Maharashtra, India
| | - V Khadilkar
- Growth and Pediatric Endocrinology Unit, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, Maharashtra, India
| | - P Kasegaonkar
- Department of Neurology, CNS Hospital, Solapur, Maharashtra, India
| | - A Khadilkar
- Growth and Pediatric Endocrinology Unit, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, Maharashtra, India
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Wang J, Zhao C, Zhang X, Yang L, Hu Y. Identification of a novel heterozygous PTH1R variant in a Chinese family with incomplete penetrance. Mol Genet Genomic Med 2024; 12:e2301. [PMID: 37840415 PMCID: PMC10767579 DOI: 10.1002/mgg3.2301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/21/2023] [Accepted: 10/03/2023] [Indexed: 10/17/2023] Open
Abstract
BACKGROUND Mutations in PTH1R are associated with Jansen-type metaphyseal chondrodysplasia (JMC), Blomstrand osteochondrodysplasia (BOCD), Eiken syndrome, enchondroma, and primary failure of tooth eruption (PFE). Inheritance of the PTH1R gene can be either autosomal dominant or autosomal recessive, indicating the complexity of the gene. Our objective was to identify the phenotypic differences in members of a family with a novel PTH1R mutation. METHODS The proband was a 13-year, 6-month-old girl presenting with short stature, abnormal tooth eruption, skeletal dysplasia, and midface hypoplasia. The brother and father of the proband presented with short stature and abnormal tooth eruption. High-throughput sequencing was performed on the proband, and the variant was confirmed in the proband and other family members by Sanger sequencing. Amino acid sequence alignment was performed using ClustalX software. Three-dimensional structures were analyzed and displayed using the I-TASSER website and PyMOL software. RESULTS High-throughput genome sequencing and Sanger sequencing validation showed that the proband, her father, and her brother all carried the PTH1R (NM_000316) c.1393G>A (p.E465K) mutation. The c.1393G>A (p.E465K) mutation was novel, as it has not been reported in the literature database. According to the American College of Medical Genetics and Genomics (ACMG) guidelines, the p.E465K variant was considered to have uncertain significance. Biological information analysis demonstrated that this identified variant was highly conserved and highly likely pathogenic. CONCLUSIONS We identified a novel heterozygous mutation in the PTH1R gene leading to clinical manifestations with incomplete penetrance that expands the spectrum of known PTH1R mutations.
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Affiliation(s)
- Jie Wang
- Department of Pediatrics, Linyi People's HospitalPostgrad Training Base Jinzhou Med UniversityLinyiChina
- Department of PediatricsLinyi People's HospitalLinyiChina
| | - Chaoyue Zhao
- Department of Pediatrics, Linyi People's HospitalPostgrad Training Base Jinzhou Med UniversityLinyiChina
- Department of PediatricsLinyi People's HospitalLinyiChina
| | - Xin Zhang
- Department of Pediatrics, Linyi People's HospitalPostgrad Training Base Jinzhou Med UniversityLinyiChina
- Department of PediatricsLinyi People's HospitalLinyiChina
| | - Li Yang
- Department of PediatricsLinyi People's HospitalLinyiChina
| | - Yanyan Hu
- Department of PediatricsLinyi People's HospitalLinyiChina
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Zappa F, Intartaglia D, Guarino AM, De Cegli R, Wilson C, Salierno FG, Polishchuk E, Sorrentino NC, Conte I, De Matteis MA. Role of trafficking protein particle complex 2 in medaka development. Traffic 2024; 25:e12924. [PMID: 37963679 DOI: 10.1111/tra.12924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/16/2023]
Abstract
The skeletal dysplasia spondyloepiphyseal dysplasia tarda (SEDT) is caused by mutations in the TRAPPC2 gene, which encodes Sedlin, a component of the trafficking protein particle (TRAPP) complex that we have shown previously to be required for the export of type II collagen (Col2) from the endoplasmic reticulum. No vertebrate model for SEDT has been generated thus far. To address this gap, we generated a Sedlin knockout animal by mutating the orthologous TRAPPC2 gene (olSedl) of Oryzias latipes (medaka) fish. OlSedl deficiency leads to embryonic defects, short size, diminished skeletal ossification and altered Col2 production and secretion, resembling human defects observed in SEDT patients. Moreover, SEDT knock-out animals display photoreceptor degeneration and gut morphogenesis defects, suggesting a key role for Sedlin in the development of these organs. Thus, by studying Sedlin function in vivo, we provide evidence for a mechanistic link between TRAPPC2-mediated membrane trafficking, Col2 export, and developmental disorders.
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Affiliation(s)
- Francesca Zappa
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Daniela Intartaglia
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Andrea M Guarino
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Rossella De Cegli
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Cathal Wilson
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | | | - Elena Polishchuk
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Nicolina Cristina Sorrentino
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Ivan Conte
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Maria Antonietta De Matteis
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
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20
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Tian X, Zhang X, Zhang Q, Chen X, Zhou B, Ma P, zheng L, Hao S, Ling J, Zhang C, Hui L. Immune skeletal dysplasia with neurodevelopmental abnormalities caused by a novel variant of EXTL3 gene in a Chinese family. Mol Genet Genomic Med 2024; 12:e2308. [PMID: 38010033 PMCID: PMC10767689 DOI: 10.1002/mgg3.2308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/30/2023] [Accepted: 10/13/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Immune skeletal dysplasia with neurodevelopmental abnormalities (ISDNA) is an extremely rare, autosomal recessive genetic disorder characterized by various skeletal abnormalities, neurodevelopmental deficits, and abnormal immune system function. ISDNA is caused by variation in the exostosin-like 3 (EXTL3) gene, located on chromosome 8p21.2, whose primary function is the biosynthesis of heparan sulfate (HS) skeleton structure. Only a few variations in the EXTL3 gene have been discovered so far. In these years of development, many pathogenic variants in genetic diseases with genetic and phenotypic heterogeneity have been investigated using whole-exome sequencing (WES) technology. METHODS In this research, a novel EXTL3 variant was first detected in a patient using WES, which was validated from Sanger sequencing in this family. Family history and clinical information were then collected through comprehensive medical examinations and genetic counseling. In silico prediction was then utilized to confirm the pathogenicity of the variant. RESULTS A novel homozygous variant, NM_001440: c.2015G>A (p.Arg672Gln) in the EXTL3 gene, was identified using WES, which has never been reported before. Sanger sequencing was performed to confirm that the variant segregated with the disease within the family. CONCLUSION This research identified a novel pathogenic variant in the EXTL3 gene responsible for ISDNA in a Chinese family. It showed the potential diagnostic role of WES in ISDNA, expanded the EXTL3 gene variation spectrum, and demonstrated that the diagnosis of ISDNA using WES is feasible and effective. More comprehensive genetic counseling and precise prenatal diagnosis for the next pregnancy can also be provided to families with genetic disorders.
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Affiliation(s)
- Xinyuan Tian
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
- School of Public HealthGansu University of Chinese MedicineLanzhouChina
| | - Xiaoni Zhang
- Center for Early Childhood DevelopmentGansu Provincial Maternity and Child‐Care HospitalLanzhouChina
| | - Qinghua Zhang
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Xue Chen
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Bingbo Zhou
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Panpan Ma
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Lei zheng
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Shengju Hao
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Junhe Ling
- School of Public HealthGansu University of Chinese MedicineLanzhouChina
| | - Chuan Zhang
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
| | - Ling Hui
- Center for Medical GeneticsGansu Provincial Maternity and Child Care Hospital, Gansu Provincial Clinical Research Center for Birth Defects and Rare DiseasesLanzhouChina
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21
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Daas F, Gupta P, Kiblawi F. Multiple vascular anomalies and refractory pericardial effusion in a young patient with Cantu syndrome: a case report and review of the literature. BMC Pediatr 2023; 23:644. [PMID: 38114927 PMCID: PMC10731865 DOI: 10.1186/s12887-023-04446-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Cantu syndrome is a rare and complex multisystem disorder characterized by hypertrichosis, facial dysmorphism, osteochondroplasia and cardiac abnormalities. With only 150 cases reported worldwide, Cantu syndrome is now gaining wider recognition due to molecular testing and a growing body of literature that further characterizes the syndrome and some of its most important features. Cardiovascular pathology previously described in the literature include cardiomegaly, pericardial effusion, vascular dilation and tortuosity, and other congenital heart defects. However, cardiovascular involvement is highly variable amongst individuals with Cantu syndrome. In some instances, it can be extensive and severe requiring surgical management and long term follow up. CASE PRESENTATION Herein we report a case of a fourteen-year-old female who presented with worsening pericardial effusion of unknown etiology, and echocardiographic findings of concentric left ventricular hypertrophy, a mildly dilated aortic root and ascending aorta. Her medical history was notable for hemoptysis and an episode of pulmonary hemorrhage secondary to multiple aortopulmonary collaterals that were subsequently embolized in early childhood. She was initially managed with Ibuprofen and Colchicine but continued to worsen, and ultimately required a pericardial window for the management of refractory pericardial effusion. Imaging studies obtained on subsequent visits revealed multiple dilated and tortuous blood vessels in the head, neck, chest, and pelvis. A cardiomyopathy molecular studies panel was sent, and a pathogenic variant was identified in the ABCC9 gene, confirming the molecular diagnosis of autosomal dominant Cantu syndrome. CONCLUSIONS Vascular anomalies and significant cardiac involvement are often present in Cantu syndrome, however there are currently no established screening recommendations or surveillance protocols in place. The triad of hypertrichosis, facial dysmorphism, and unexplained cardiovascular involvement in any patient should raise suspicion for Cantu syndrome and warrant further investigation. Initial cardiac evaluation and follow up should be indicated in any patient with a clinical and/or molecular diagnosis of Cantu syndrome. Furthermore, whole body imaging should be utilized to evaluate the extent of vascular involvement and dictate long term monitoring and care.
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Affiliation(s)
- Falastine Daas
- Department of Pediatrics, St. Joseph's University Medical Center, 703 Main Street, Paterson, NJ, 07503, USA.
| | - Punita Gupta
- Department of Pediatrics Division of Genetics, St. Joseph's University Medical Center, 703 Main Street, Paterson, NJ, 07503, USA
| | - Fuad Kiblawi
- Department of Pediatrics Division of Cardiology, St. Joseph's University Medical Center, 703 Main Street, Paterson, NJ, 07503, USA
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22
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Demir E, Adım F, Döğen ME, Aydoğdu A, Yeşil E, Mermer S, Başer B, Ürel Demir G. EXTL3-Associated Immunoskeletal Dysplasia with Neurodevelopmental Abnormalities: A Lethal Phenotype. Pediatr Allergy Immunol Pulmonol 2023; 36:147-149. [PMID: 38010729 DOI: 10.1089/ped.2023.0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Background: Immunoskeletal dysplasia with neurodevelopmental abnormalities (ISDNA) caused by Exostosin-Like Glycosyltransferase 3 (EXTL3) biallelic mutations is a very rare syndrome with only 16 cases reported in the literature. Skeletal dysplasia, neurodevelopmental delay, immunodeficiency, liver, and kidney cysts are the most common findings of this syndrome. Case Presentation: Here, we report on a patient who exhibited a lethal phenotype with clinical characteristics of this syndrome and had a homozygous pathogenic mutation in EXTL3 gene. Conclusions: ISDNA should be kept in mind in the differential diagnosis of patients presenting with neuro-immuno-skeletal dysplasia phenotype.
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Affiliation(s)
- Engin Demir
- Division of Pediatric Gastroenterology, Department of Pediatrics, Mersin City Training and Research Hospital, Mersin, Turkey
| | - Filiz Adım
- Department of Pediatrics, Mersin City Training and Research Hospital, Mersin, Turkey
| | | | - Ayşe Aydoğdu
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Mersin City Training and Research Hospital, Mersin, Turkey
| | - Edanur Yeşil
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Mersin City Training and Research Hospital, Mersin, Turkey
| | - Serdar Mermer
- Department of Medical Genetics, Mersin City Training and Research Hospital, Mersin, Turkey
| | - Burak Başer
- Department of Medical Genetics, Mersin City Training and Research Hospital, Mersin, Turkey
| | - Gizem Ürel Demir
- Division of Pediatric Genetics, Department of Pediatrics, Mersin City Training and Research Hospital, Mersin, Turkey
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Iqbal M, Waqas M, Mo Q, Shahzad M, Zeng Z, Qamar H, Mehmood K, Kulyar MFEA, Nawaz S, Li J. Baicalin inhibits apoptosis and enhances chondrocyte proliferation in thiram-induced tibial dyschondroplasia in chickens by regulating Bcl-2/Caspase-9 and Sox-9/Collagen-II expressions. Ecotoxicol Environ Saf 2023; 268:115689. [PMID: 37992645 DOI: 10.1016/j.ecoenv.2023.115689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/06/2023] [Accepted: 11/11/2023] [Indexed: 11/24/2023]
Abstract
Avian tibial dyschondroplasia (TD) is a skeletal disease affecting fast growing chickens, resulting in non-mineralized avascular cartilage. This metabolic disorder is characterized by lameness and reduced growth performance causing economic losses. The aim of this study was to investigate the protective effects of baicalin against TD caused by thiram exposure. A total of two hundred and forty (n = 240) one day-old broiler chickens were uniformly and randomly allocated into three different groups (n = 80) viz. control, TD, and baicalin groups. All chickens received standard feed, however, to induce TD, the TD and baicalin groups received thiram (tetramethylthiuram disulfide) at a rate of 50 mg/kg feed from days 4-7. The thiram induction in TD and baicalin groups resulted in lameness, high mortality, and enlarged growth-plate, poor production performance, reduction in ALP, GSH-Px, SOD, and T-AOC levels, and increased AST and ALT, and MDA levels. Furthermore, histopathological results showed less vascularization, and mRNA and protein expression levels of Sox-9, Col-II, and Bcl-2 showed significant downward trend, while caspase-9 displayed significant up-regulation in TD-affected chickens. After the TD induction, the baicalin group was orally administered with baicalin at a rate of 200 mg/kg from days 8-18. Baicalin administration increased the vascularization, and chondrocytes with intact nuclei, alleviated lameness, decreased GP size, increased productive capacity, and restored the liver antioxidant enzymes and serum biochemical levels. Furthermore, baicalin significantly up-regulated the gene and protein expressions of Sox-9, Col-II, and Bcl-2, and significantly down-regulated the expression of caspase-9 (p < 0.05). Therefore, the obtained results suggest that baicalin could be a possible choice in thiram toxicity alleviation by regulating apoptosis and chondrocyte proliferation in thiram-induced tibial dyschondroplasia.
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Affiliation(s)
- Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Waqas
- Department of Veterinary Clinical Sciences, Faculty of Veterinary and Animal Sciences, University of Poonch Rawalakot, Poonch 12350, Azad Jammu and Kashmir, Pakistan
| | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Muhammad Shahzad
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Zhibo Zeng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Hammad Qamar
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | | | - Shah Nawaz
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
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Sun Q, Wu S, Liu K, Li Y, Mehmood K, Nazar M, Hu L, Pan J, Tang Z, Liao J, Zhang H. miR-181b-1-3p affects the proliferation and differentiation of chondrocytes in TD broilers through the WIF1/Wnt/β-catenin pathway. Pestic Biochem Physiol 2023; 197:105649. [PMID: 38072524 DOI: 10.1016/j.pestbp.2023.105649] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 12/18/2023]
Abstract
Thiram is a plant fungicide, its excessive use has exceeded the required environmental standards. It causes tibial dyschondroplasia (TD) in broilers which is a common metabolic disease that affects the growth plate of tibia bone. It has been studied that many microRNAs (miRNAs) are involved in the differentiation of chondrocytes however, their specific roles and mechanisms have not been fully investigated. The selected features of tibial chondrocytes of broilers were studied in this experiment which included the expression of miR-181b-1-3p and the genes related to WIF1/Wnt/β-catenin pathway in chondrocytes through qRT-PCR, western blot and immunofluorescence. The correlation between miR-181b-1-3p and WIF1 was determined by dual luciferase reporter gene assay whereas, the role of miR-181b-1-3p and WIF1/Wnt/β-catenin in chondrocyte differentiation was determined by mimics and inhibitor transfection experiments. Results revealed that thiram exposure resulted in decreased expression of miR-181b-1-3p and increased expression of WIF1 in chondrocytes. A negative correlation was also observed between miR-181b-1-3p and WIF1. After overexpression of miR-181b-1-3p, the expression of ACAN, β-catenin and Col2a1 increased but the expression of GSK-3β decreased. It was observed that inhibition of WIF1 increased the expression of ALP, β-catenin, Col2a1 and ACAN but decreased the expression of GSK-3β. It is concluded that miR-181b-1-3p can reverse the inhibitory effect of thiram on cartilage proliferation and differentiation by inhibiting WIF1 expression and activating Wnt/β-catenin signaling pathway. This study provides a new molecular target for the early diagnosis and possible treatment of TD in broilers.
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Affiliation(s)
- Qiuyu Sun
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Shouyan Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Kai Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Mudassar Nazar
- University of Agriculture Faisalabad, Sub-Campus Burewala, 61010, Pakistan
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jiaqiang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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25
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Sartore S, Moretti R, Piras LA, Longo M, Chessa S, Sacchi P. Osteochondrodysplasia and the c.1024G>T variant of TRPV4 gene in Scottish Fold cats: genetic and radiographic evaluation. J Feline Med Surg 2023; 25:1098612X231211763. [PMID: 38055304 DOI: 10.1177/1098612x231211763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
OBJECTIVES The objectives of this study were to investigate the c.1024G>T SNP in the TRPV4 gene in Scottish Straight and Fold cats, and to evaluate the pattern of skeletal phenotype and the evolution of radiological signs of Scottish Fold osteochondrodysplasia (SFOCD) over time in heterozygous subjects. METHODS DNA was obtained from blood samples of 17 cats (Scottish Fold: n = 12; Scottish Straight: n = 5) and subsequently genotyped by sequencing in a 249 bp region of the TRPV4 gene (exon 6), including the known c.1024G>T causative mutation for osteochondrodysplasia. Orthopaedic and radiographic analyses were performed on animals carrying the mutant allele. RESULTS Genotyping by sequencing confirmed that all and only the Scottish Fold cats carried the mutant allele in a heterozygous asset. Furthermore, two other exon variants, already described in the literature as silent variants, were found in some of the sampled cats. Comparative orthogonal radiographic views of the shoulder, elbow, carpus, hip, stifle and tarsus were obtained. A mediolateral projection of the thoracic and lumbar column was also performed. Three out of four cats were clinically and radiographically examined again 1.5 years later. CONCLUSIONS AND RELEVANCE Although the presence of the mutant allele in all the tested Scottish Fold cats was confirmed, only 1/12 showed clinical signs of SFOCD. Furthermore, no cats in the 1.5-year follow-up showed skeletal changes. Although significant, the c.1024G>T mutation in the TRPV4 gene, supposedly, is not the only cause or risk of developing SFOCD.
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Affiliation(s)
- Stefano Sartore
- Department of Veterinary Science, University of Turin, Grugliasco, Turin, Italy
| | - Riccardo Moretti
- Department of Veterinary Science, University of Turin, Grugliasco, Turin, Italy
| | - Lisa Adele Piras
- Department of Veterinary Science, University of Turin, Grugliasco, Turin, Italy
| | - Maurizio Longo
- Department of Veterinary Medicine and Animal Science, University of Milan, Lodi, Italy
| | - Stefania Chessa
- Department of Veterinary Science, University of Turin, Grugliasco, Turin, Italy
| | - Paola Sacchi
- Department of Veterinary Science, University of Turin, Grugliasco, Turin, Italy
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26
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Zhang W, Yao Z, Guo R, Cao J, Li W, Hao C, Zhang X. Identification of novel homozygous nonsense SLC10A7 variant causing short stature, amelogenesis imperfecta, and skeletal dysplasia with scoliosis and surgical management of spine. Orphanet J Rare Dis 2023; 18:371. [PMID: 38037133 PMCID: PMC10691085 DOI: 10.1186/s13023-023-02975-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 11/18/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Short stature, amelogenesis imperfecta, and skeletal dysplasia with scoliosis is a rare, autosomal recessive, skeletal disorder first described in 2018. This syndrome starts with pre- and postnatal developmental delay, and gradually presents with variable facial dysmorphisms, a short stature, amelogenesis imperfecta, and progressive skeletal dysplasia affecting the limbs, joints, hands, feet, and spine. CASE PRESENTATION We identified a homozygous novel nonsense mutation in exon 1 of SLC10A7 (NM_001300842.2: c.100G > T / p.Gly34*) segregating with the typical disease phenotype in a Han Chinese family. We reviewed the 12-year surgical treatment history with seven interventions on spine. CONCLUSION To date, only 12 cases of the SLC10A7 mutation have been reported, mainly from consanguineous families. Our patient showed a relatively severe and broad clinical phenotype compared with previously reported cases. In this patient, annual check-ups and timely surgeries led to a good outcome.
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Affiliation(s)
- Wenyan Zhang
- Beijing Key Laboratory for Genetics of Birth Defects, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Ziming Yao
- Department of Orthopedics, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Ruolan Guo
- Beijing Key Laboratory for Genetics of Birth Defects, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, China
- Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| | - Jun Cao
- Department of Orthopedics, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Wei Li
- Beijing Key Laboratory for Genetics of Birth Defects, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, China
- Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| | - Chanjuan Hao
- Beijing Key Laboratory for Genetics of Birth Defects, MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, China.
- Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China.
| | - Xuejun Zhang
- Department of Orthopedics, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
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27
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Zhou L, Chen J, Liu Q, Yang S, Xie W, Peng Y. Case Report: Whole-exome sequencing identified two novel COMP variants causing pseudoachondroplasia. Front Endocrinol (Lausanne) 2023; 14:1267946. [PMID: 38075060 PMCID: PMC10702128 DOI: 10.3389/fendo.2023.1267946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/27/2023] [Indexed: 12/18/2023] Open
Abstract
Pseudoachondroplasia (PSACH) is a rare, dominant genetic disorder affecting bone and cartilage development, characterized by short-limb short stature, brachydactyly, loose joints, joint stiffness, and pain. The disorder is caused by mutations in the COMP gene, which encodes a protein that plays a role in the formation of collagen fibers. In this study, we present the clinical and genetic characteristics of PSACH in two Chinese families. Whole-exome sequencing (WES) analysis revealed two novel missense variants in the COMP gene: NM_000095.3: c.1319G>T (p.G440V, maternal) and NM_000095.3: c.1304A>T (p.D435V, paternal-mosaic). Strikingly, both the G440V and D435V mutations were located in the same T3 repeat motif and exhibited the potential to form hydrogen bonds with each other. Upon further analysis using Missense3D and PyMOL, we ascertained that these mutations showed the propensity to disrupt the protein structure of COMP, thus hampering its functioning. Our findings expand the existing knowledge of the genetic etiology underlying PSACH. The identification of new variants in the COMP gene can broaden the range of mutations linked with the condition. This information can contribute to the diagnosis and genetic counseling of patients with PSACH.
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Affiliation(s)
- Lin Zhou
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Jing Chen
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Qian Liu
- Medical Department, Zhejiang Biosan Biochemical Technologies Co. Ltd, Hangzhou, Zhejiang, China
| | - Shuting Yang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Wanqin Xie
- National Health Commission Key Laboratory of Birth Defects for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Ying Peng
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
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28
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Gourgas O, Lemire G, Eaton AL, Alshahrani S, Duker AL, Li J, Carroll RS, Mackenzie S, Nikkel SM, Bober MB, Boycott KM, Murshed M. Specific heterozygous variants in MGP lead to endoplasmic reticulum stress and cause spondyloepiphyseal dysplasia. Nat Commun 2023; 14:7054. [PMID: 37923733 PMCID: PMC10624854 DOI: 10.1038/s41467-023-41651-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 09/13/2023] [Indexed: 11/06/2023] Open
Abstract
Matrix Gla protein (MGP) is a vitamin K-dependent post-translationally modified protein, highly expressed in vascular and cartilaginous tissues. It is a potent inhibitor of extracellular matrix mineralization. Biallelic loss-of-function variants in the MGP gene cause Keutel syndrome, an autosomal recessive disorder characterized by widespread calcification of various cartilaginous tissues and skeletal and vascular anomalies. In this study, we report four individuals from two unrelated families with two heterozygous variants in MGP, both altering the cysteine 19 residue to phenylalanine or tyrosine. These individuals present with a spondyloepiphyseal skeletal dysplasia characterized by short stature with a short trunk, diffuse platyspondyly, midface retrusion, progressive epiphyseal anomalies and brachytelephalangism. We investigated the cellular and molecular effects of one of the heterozygous deleterious variants (C19F) using both cell and genetically modified mouse models. Heterozygous 'knock-in' mice expressing C19F MGP recapitulate most of the skeletal anomalies observed in the affected individuals. Our results suggest that the main underlying mechanism leading to the observed skeletal dysplasia is endoplasmic reticulum stress-induced apoptosis of the growth plate chondrocytes. Overall, our findings support that heterozygous variants in MGP altering the Cys19 residue cause autosomal dominant spondyloepiphyseal dysplasia, a condition distinct from Keutel syndrome both clinically and molecularly.
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Affiliation(s)
- Ophélie Gourgas
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Gabrielle Lemire
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Alison L Eaton
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- University of Alberta, Edmonton, AB, Canada
| | - Sultanah Alshahrani
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Jingjing Li
- Department of Medicine, McGill University, Montreal, QC, Canada
| | | | | | | | | | - Kym M Boycott
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
- Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Monzur Murshed
- Department of Medicine, McGill University, Montreal, QC, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada.
- Shriners Hospitals for Children - Canada, Montreal, QC, Canada.
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29
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Nijhuis WH, Verhoef M, Sakkers RJB. Life span care for patients with skeletal dysplasia: A roadmap. Eur J Med Genet 2023; 66:104851. [PMID: 37758161 DOI: 10.1016/j.ejmg.2023.104851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/24/2023] [Indexed: 10/03/2023]
Abstract
Patients with skeletal dysplasias usually experience health related problems in different parts and systems of the body. Therefore, they face challenges in multiple domains of functioning and health. To address these different domains, interdisciplinary care should be the standard for these patients. The basic algorithm of interdisciplinary care can be similar for patients with different skeletal dysplasias, as many of the problems and needs are generic within different age groups. With increased age the domains in which patients with skeletal dysplasia face challenges will change and the focus and frequency of the interdisciplinary care should change accordingly. Thorough understanding of the specific characteristics of different skeletal dysplasias is required to create an individualized efficient interdisciplinary screening and care program. This paper presents the current structure and rationale of the interdisciplinary screening and care program of the skeletal dysplasia expert center of the University Medical Center Utrecht in the Netherlands. It is presented here, tailored to osteogenesis imperfecta, but the structure of the program is generic for all skeletal dysplasias.
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Affiliation(s)
- Wouter H Nijhuis
- Department of Orthopedic Surgery, University Medical Center Utrecht, 3508 GA, Utrecht, the Netherlands.
| | - Marjolein Verhoef
- Department of Rehabilitation, Physical Therapy Science & Sports, Brain Center Rudolf Magnus, University Medical Centre Utrecht, 3508 GA, Utrecht, the Netherlands
| | - Ralph J B Sakkers
- Department of Orthopedic Surgery, University Medical Center Utrecht, 3508 GA, Utrecht, the Netherlands
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30
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Urtizberea JA, Severa G, Ropars J, Malfatti E. [The Schwartz-Jampel syndrome]. Med Sci (Paris) 2023; 39 Hors série n° 1:37-46. [PMID: 37975769 DOI: 10.1051/medsci/2023133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023] Open
Abstract
The Schwartz-Jampel syndrome (SJS, OMIM #255800) is an ultra-rare genetic disease characterized by myotonic manifestations combined with bone and cartilage abnormalities. Following an autosomal recessive mode of inheritance, its prevalence is more significant in highly-inbred areas. The unraveling of the HSPG2 gene encoding a protein of the basal lamina enabled a better nosological delineation of the syndrome. The diagnosis is usually strongly suspected at the clinical level and then confirmed by molecular biology. To date, the treatment remains essentially symptomatic.
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31
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Liu W, Cao J, Shi X, Li Y, Qiao F, Wu Y. Genetic testing and diagnostic strategies of fetal skeletal dysplasia: a preliminary study in Wuhan, China. Orphanet J Rare Dis 2023; 18:336. [PMID: 37875969 PMCID: PMC10599061 DOI: 10.1186/s13023-023-02955-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 10/16/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Fetal skeletal dysplasia is a diverse group of degenerative diseases of bone and cartilage disorders that can lead to movement disorder and even death. This study aims to evaluate the diagnostic yield of sonographic examination and genetic testing for fetal skeletal dysplasia. METHODS From September 2015 to April 2021, the study investigated 24 cases with suspected short-limb fetuses, which were obtained from Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology. To identify the causative gene, multiple approaches (including karyotype analysis, copy number variations and whole exome sequencing) were performed on these fetuses. And further segregation analysis of the candidate variant was performed in parents by using Sanger sequencing. RESULTS ① Out of 24 cases, likely pathogenic variants in FGFR3, FBN2, COL1A2, CUL7 and DYNC2H1 were detected in 6 cases; pathogenic variants in FGFR3, IMPAD1 and GORAB were identified in other 6 cases; and variants in WNT1, FBN1, OBSL1, COL1A1, DYNC2H1 and NEK1, known as Variant of Undetermined Significance, were found in 4 cases. There were no variants detected in the rest 8 cases by the whole exome sequencing. ② Of 24 cases, 12 (50%) were found to carry variants (pathogenic or likely pathogenic) in seven genes with 12 variants. Four fetuses (16.7%) had variants of uncertain significance. CONCLUSION Genetic testing combining with ultrasound scanning enhances the accurate diagnosis of fatal skeletal dysplasia in utero, and then provides appropriate genetic counseling.
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Affiliation(s)
- Wanlu Liu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, 430030 China
| | - Jing Cao
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, 430030 China
| | - Xinwei Shi
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, 430030 China
| | - Yuqi Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, 430030 China
| | - Fuyuan Qiao
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, 430030 China
| | - Yuanyuan Wu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, 430030 China
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32
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Crenshaw MM, Meyers ML, Brown K, Slegesky V, Duis J, Elias ER, Saenz M, Shi W, Filmus J, Meeks NJL. Five siblings expand the spectrum of GPC6-related skeletal dysplasia. Am J Med Genet A 2023; 191:2571-2577. [PMID: 37353964 DOI: 10.1002/ajmg.a.63337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/31/2023] [Accepted: 06/09/2023] [Indexed: 06/25/2023]
Abstract
Skeletal dysplasias broadly include disorders of cartilage or bone. Omodysplasia-1 is a type of skeletal dysplasia caused by biallelic loss of function variants in the GPC6 gene. GPC6 codes for the protein glypican 6 (GPC6) (OMIM *604404), which stimulates bone growth. We report a family in which five out of nine children were presented with a skeletal dysplasia characterized phenotypically by mild short stature and rhizomelia. All affected individuals were found to have homozygous missense variants in GPC6: c.511 C>T (p.Arg171Trp). Radiograph findings included rhizomelic foreshortening of all four extremities, coxa breva, and ulna minus deformity. Using a Hedgehog (Hh) reporter assay, we demonstrate that the variant found in this family results in significantly reduced stimulation of Hh activity when compared to the wild-type GPC6 protein, however protein function is still present. Thus, the milder phenotype seen in the family presented is hypothesized due to decreased GPC6 protein activity versus complete loss of function as seen in omodysplasia-1. Given the unique phenotype and molecular mechanism, we propose that this family's findings widen the phenotypic spectrum of GPC6-related skeletal dysplasias.
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Affiliation(s)
- Molly M Crenshaw
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
| | | | - Kathleen Brown
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
| | - Valerie Slegesky
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
| | - Jessica Duis
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
| | - Ellen R Elias
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
| | - Margarita Saenz
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
| | - Wen Shi
- Department of Medical Biophysics, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Jorge Filmus
- Department of Medical Biophysics, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Naomi J L Meeks
- Department of Pediatrics, Section of Genetics and Metabolism, University of Colorado School of Medicine (CU-SOM), Aurora, Colorado, USA
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33
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Lhousni S, Charif M, Derouich Y, Elidrissi Errahhali M, Elidrissi Errahhali M, Ouarzane M, Lenaers G, Boulouiz R, Belahcen M, Bellaoui M. A novel variant in BMPR1B causes acromesomelic dysplasia Grebe type in a consanguineous Moroccan family: Expanding the phenotypic and mutational spectrum of acromesomelic dysplasias. Bone 2023; 175:116860. [PMID: 37524292 DOI: 10.1016/j.bone.2023.116860] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
Acromesomelic dysplasia Grebe type (AMD Grebe type) is an autosomal recessive trait characterized by short stature, shortened limbs and malformations of the hands and feet. It is caused by variants in the growth differentiation factor 5 (GDF5) or, in rare cases, its receptor, the bone morphogenetic protein receptor-1B (BMPR1B). Here, we report a novel homozygous BMPR1B variant causing AMD Grebe type in a consanguineous Moroccan family with two affected sibs from BRO Biobank. Remarkably, the affected individuals showed additional features including bilateral simian creases, lumbar hyperlordosis, as well as lower limb length inequality and dislocated hips in one of them, which were never reported previously for AMD Grebe type patients. The identified novel BMPR1B variant (c.1201C>T, p.R401*) is predicted to result in loss of function of the BMPR1B protein either by nonsense-mediated mRNA decay or production of a truncated BMPR1B protein. Thus, these findings expand the phenotypic and mutational spectrum of AMD, and may improve the diagnosis of AMD and enable appropriate genetic counselling to be offered to patients.
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Affiliation(s)
- Saida Lhousni
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Majida Charif
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; Genetics and Immuno-Cell Therapy Team, Faculty of Science, University Mohammed Premier, Oujda, Morocco
| | - Yassine Derouich
- Department of Pediatric Orthopedic and Trauma Surgery, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Mounia Elidrissi Errahhali
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Manal Elidrissi Errahhali
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Meryem Ouarzane
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Guy Lenaers
- Université d'Angers, Equipe MitoLab, Unité MitoVasc, INSERM U1083, CNRS 6015, F-49933 Angers, France; Service de Neurologie, CHU d'Angers, Angers, France
| | - Redouane Boulouiz
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Mohammed Belahcen
- Department of Pediatric Orthopedic and Trauma Surgery, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Mohammed Bellaoui
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco.
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34
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Yang X, Zhou T, Wang X, Xia Y, Cao X, Cheng X, Cao Y, Ma P, Ma H, Qin A, Zhao J. Loss of DDRGK1 impairs IRE1α UFMylation in spondyloepiphyseal dysplasia. Int J Biol Sci 2023; 19:4709-4725. [PMID: 37781516 PMCID: PMC10539710 DOI: 10.7150/ijbs.82765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 08/27/2023] [Indexed: 10/03/2023] Open
Abstract
Spondyloepiphyseal dysplasia (SEMD) is a rare disease in which cartilage growth is disrupted, and the DDRGK1 mutation is one of the causative genes. In our study, we established Ddrgk1fl/fl, Col2a1-ERT Cre mice, which showed a thickened hypertrophic zone (HZ) in the growth plate, simulating the previous reported SEMD pathology in vivo. Instead of the classical modulation mechanism towards SOX9, our further mechanism study found that DDRGK1 stabilizes the stress sensor endoplasmic reticulum-to-nucleus signaling 1 (IRE1α) to maintain endoplasmic reticulum (ER) homoeostasis. The loss of DDRGK1 decreased the UFMylation and subsequently led to increased ubiquitylation-mediated IRE1α degradation, causing ER dysfunction and activating the PERK/CHOP/Caspase3 apoptosis pathway. Further DDRGK1 K268R-mutant mice revealed the importance of K268 UFMylation site in IRE1α degradation and subsequent ER dysfunction. In conclusion, DDRGK1 stabilizes IRE1α to ameliorate ER stress and following apoptosis in chondrocytes, which finally promote the normal chondrogenesis.
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Affiliation(s)
- Xiao Yang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tangjun Zhou
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xin Wang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Xia
- Institute of Precision Medicine, The Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiankun Cao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaofei Cheng
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Cao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Precision Medicine, The Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peixiang Ma
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Ma
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - An Qin
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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35
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Remmelzwaal PC, Verhagen MV, Jongbloed JDH, van den Akker PC, Veenstra-Knol HE, Hitzert MM. Expanding the phenotype of anauxetic dysplasia caused by biallelic NEPRO mutations: A case report. Am J Med Genet A 2023; 191:2440-2445. [PMID: 37294112 DOI: 10.1002/ajmg.a.63316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 06/10/2023]
Abstract
The cartilage hair hypoplasia and anauxetic dysplasia (CHH-AD) spectrum encompasses a group of rare skeletal disorders, with anauxetic dysplasia (ANXD) at the most severe end of the spectrum. Biallelic variants in RMRP, POP1, and NEPRO (C3orf17) have previously been associated with the three currently recognized ANXD types. Generally, all types are characterized by severe short stature, brachydactyly, skin laxity, joint hypermobility and dislocations, and extensive skeletal abnormalities visible on radiological evaluation. Thus far, only five patients with type 3 anauxetic dysplasia (ANXD3) have been reported. Here, we describe one additional ANXD3 patient. We provide a detailed physical and radiological evaluation of this patient, in whom we identified a homozygous variant, c.280C > T, p.(Arg94Cys), in NEPRO. Our patient presented with clinically relevant features not previously described in ANXD3: atlantoaxial subluxation, extensive dental anomalies, and a sagittal suture craniosynostosis resulting in scaphocephaly. We provide an overview of the literature on ANXD3 and discuss our patient's characteristics in the context of previously described patients. This study expands the phenotypic spectrum of ANXD, particularly ANXD3. Greater awareness of the possibility of atlantoaxial subluxation, dental anomalies, and craniosynostosis may lead to more timely diagnosis and treatment.
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Affiliation(s)
- P Christian Remmelzwaal
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Martijn V Verhagen
- Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan D H Jongbloed
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Peter C van den Akker
- Department of Genetics, Groningen Expertise Center for Genodermatoses, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Hermine E Veenstra-Knol
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marrit M Hitzert
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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36
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Ma J, Zhang Y, Ding X, Liang Z, Yang C, Deng Z, He H, Guan Z, Zeng C, Lin Y, Luo X. Co-occurrence of Spondyloepiphyseal Dysplasia and X-Linked Hypophosphatemia in a Three-Generation Chinese Family. Calcif Tissue Int 2023; 113:266-275. [PMID: 37278761 PMCID: PMC10449693 DOI: 10.1007/s00223-023-01104-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 05/25/2023] [Indexed: 06/07/2023]
Abstract
Rare genetic skeletal disorders (GSDs) remain the major problem in orthopedics and result in significant morbidity in patients, but the causes are highly diverse. Precise molecular diagnosis will benefit management and genetic counseling. This study aims to share the diagnostic experience on a three-generation Chinese family with co-occurrence of spondyloepiphyseal dysplasia (SED) and X-linked hypophosphatemia (XLH), and evaluate the therapeutic effects of two third-generation siblings. The proband, his younger brother, and mother presented with short stature, skeletal problems, and hypophosphatemia. His father, paternal grandfather, and aunt also manifested short stature and skeletal deformities. Whole exome sequencing (WES) of proband-brother-parents initially only found the proband and his younger brother had a pathogenic c.2833G > A(p.G945S) variant in the COL2A1 gene inherited from their father. Re-analysis of WES uncovered the proband and his younger brother also harbored a pathogenic ex.12 del variant in the PHEX gene transmitted from their mother. Sanger sequencing, agarose gel electrophoresis, and quantitative polymerase chain reaction proved these results. The proband and his younger brother were confirmed to have a paternally inherited SED and a maternally inherited XLH. During a 2.8-year follow-up, these two siblings remained short stature and hypophosphatemia, but their radiographic signs and serum bone alkaline phosphatase levels were improved with treatment of oral phosphate and calcitriol. Our study presents the first report of co-occurrence of SED and XLH, shows the possibility that two different rare GSDs co-exist in a single patient, and alerts clinicians and geneticists to be cautious about this condition. Our study also suggests that next-generation sequencing has limit in detecting exon-level large deletions.
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Affiliation(s)
- Jian Ma
- Translational Medicine Center, Guangdong Women and Children Hospital, Guangzhou, 511442, China
| | - Ye Zhang
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Guangdong Women and Children Hospital, Guangzhou, 511442, China
| | - Xiaoxiao Ding
- Department of Child Health, Shenzhen Maternity & Child Healthcare Hospital, Shenzhen, 518028, China
| | - Zhijiang Liang
- Department of Public Health, Guangdong Women and Children Hospital, Guangzhou, 511442, China
| | - Chaoxiang Yang
- Department of Radiology, Guangdong Women and Children Hospital, Guangzhou, 511442, China
| | - Zhi Deng
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Guangdong Women and Children Hospital, Guangzhou, 511442, China
| | - Hui He
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Guangdong Women and Children Hospital, Guangzhou, 511442, China
| | - Zhihong Guan
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, 510623, China
| | - Chunhua Zeng
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, 510623, China.
| | - Yunting Lin
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou, 510623, China.
| | - Xianqiong Luo
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Guangdong Women and Children Hospital, Guangzhou, 511442, China.
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Otaify GA, Elhossini RM, Abdel-Ghafar SF, Sayed IM, Abdel-Salam GMH, Aglan MS, Abdel-Hamid MS. CHST3-related skeletal dysplasia in 14 patients: Identification of 8 novel variants and further expansion of the phenotypic spectrum. Am J Med Genet A 2023; 191:2100-2112. [PMID: 37183573 DOI: 10.1002/ajmg.a.63246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/01/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
Biallelic variants in CHST3 gene result in congenital dislocation of large joints, club feet, short stature, rhizomelia, kypho-scoliosis, platyspondyly, epiphyseal dysplasia, flared metaphysis, in addition to minor cardiac lesions and hearing loss. Herein, we describe 14 new patients from 11 unrelated Egyptian families with CHST3-related skeletal dysplasia. All patients had spondyloepiphyseal changes that were progressive with age in addition to bifid distal ends of humeri which can be considered a diagnostic key in patients with CHST3 variants. They also shared peculiar facies with broad forehead, broad nasal tip, long philtrum and short neck. Rare unusual associated findings included microdontia, teeth spacing, delayed eruption, prominent angulation of the lumbar-sacral junction and atrial septal defect. Mutational analysis revealed 10 different homozygous CHST3 (NM_004273.5) variants including 7 missense, two frameshift and one nonsense variant. Of them, the c.384_391dup (p.Pro131Argfs*88) was recurrent in two families. Eight of these variants were not described before. Our study presents the largest series of patients with CHST3-related skeletal dysplasia from the same ethnic group. Furthermore, it reinforces that lethal cardiac involvement is a critical clinical finding of the disorder. Therefore, we believe that our study expands the phenotypic and mutational spectrum, and also highlights the importance of performing echocardiography in patients harboring CHST3 variants.
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Affiliation(s)
- Ghada A Otaify
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Rasha M Elhossini
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Sherif F Abdel-Ghafar
- Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Inas M Sayed
- Orodental Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Ghada M H Abdel-Salam
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Mona S Aglan
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Mohamed S Abdel-Hamid
- Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
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Marzano F, Chiara M, Consiglio A, D’Amato G, Gentile M, Mirabelli V, Piane M, Savio C, Fabiani M, D’Elia D, Sbisà E, Scarano G, Lonardo F, Tullo A, Pesole G, Faienza MF. Whole-Exome and Transcriptome Sequencing Expands the Genotype of Majewski Osteodysplastic Primordial Dwarfism Type II. Int J Mol Sci 2023; 24:12291. [PMID: 37569667 PMCID: PMC10418986 DOI: 10.3390/ijms241512291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Microcephalic Osteodysplastic Primordial Dwarfism type II (MOPDII) represents the most common form of primordial dwarfism. MOPD clinical features include severe prenatal and postnatal growth retardation, postnatal severe microcephaly, hypotonia, and an increased risk for cerebrovascular disease and insulin resistance. Autosomal recessive biallelic loss-of-function genomic variants in the centrosomal pericentrin (PCNT) gene on chromosome 21q22 cause MOPDII. Over the past decade, exome sequencing (ES) and massive RNA sequencing have been effectively employed for both the discovery of novel disease genes and to expand the genotypes of well-known diseases. In this paper we report the results both the RNA sequencing and ES of three patients affected by MOPDII with the aim of exploring whether differentially expressed genes and previously uncharacterized gene variants, in addition to PCNT pathogenic variants, could be associated with the complex phenotype of this disease. We discovered a downregulation of key factors involved in growth, such as IGF1R, IGF2R, and RAF1, in all three investigated patients. Moreover, ES identified a shortlist of genes associated with deleterious, rare variants in MOPDII patients. Our results suggest that Next Generation Sequencing (NGS) technologies can be successfully applied for the molecular characterization of the complex genotypic background of MOPDII.
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Affiliation(s)
- Flaviana Marzano
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM–CNR, 70126 Bari, Italy; (F.M.); (A.T.)
| | - Matteo Chiara
- Department of Biosciences, University of Milan, 20133 Milan, Italy;
| | - Arianna Consiglio
- Institute for Biomedical Technologies, ITB-CNR, 70126 Bari, Italy; (A.C.); (V.M.); (D.D.); (E.S.)
| | - Gabriele D’Amato
- Neonatal Intensive Care Unit, Di Venere Hospital, 70012 Bari, Italy
| | | | - Valentina Mirabelli
- Institute for Biomedical Technologies, ITB-CNR, 70126 Bari, Italy; (A.C.); (V.M.); (D.D.); (E.S.)
| | - Maria Piane
- Department of Clinical and Molecular Medicine, Sapienza University, 00185 Rome, Italy;
| | | | - Marco Fabiani
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy;
| | - Domenica D’Elia
- Institute for Biomedical Technologies, ITB-CNR, 70126 Bari, Italy; (A.C.); (V.M.); (D.D.); (E.S.)
| | - Elisabetta Sbisà
- Institute for Biomedical Technologies, ITB-CNR, 70126 Bari, Italy; (A.C.); (V.M.); (D.D.); (E.S.)
| | - Gioacchino Scarano
- Medical Genetics Unit, AORN “San Pio”, Hosp. “G. Rummo”, 82100 Benevento, Italy; (G.S.); (F.L.)
| | - Fortunato Lonardo
- Medical Genetics Unit, AORN “San Pio”, Hosp. “G. Rummo”, 82100 Benevento, Italy; (G.S.); (F.L.)
| | - Apollonia Tullo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM–CNR, 70126 Bari, Italy; (F.M.); (A.T.)
| | - Graziano Pesole
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM–CNR, 70126 Bari, Italy; (F.M.); (A.T.)
- Department of Biosciences, Biotechnology and Biofarmaceutics, University of Bari “Aldo Moro”, 70126 Bari, Italy
| | - Maria Felicia Faienza
- Pediatric Section, Department of Precision and Regenerative Medicine and Ionian Area, University “A. Moro” of Bari, 70124 Bari, Italy
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Gregorczyk M, Pastore G, Muñoz I, Carroll T, Streubel J, Munro M, Lis P, Lange S, Lamoliatte F, Macartney T, Toth R, Brown F, Hastie J, Pereira G, Durocher D, Rouse J. Functional characterization of C21ORF2 association with the NEK1 kinase mutated in human in diseases. Life Sci Alliance 2023; 6:e202201740. [PMID: 37188479 PMCID: PMC10185812 DOI: 10.26508/lsa.202201740] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/17/2023] Open
Abstract
The NEK1 kinase controls ciliogenesis, mitosis, and DNA repair, and NEK1 mutations cause human diseases including axial spondylometaphyseal dysplasia and amyotrophic lateral sclerosis. C21ORF2 mutations cause a similar pattern of human diseases, suggesting close functional links with NEK1 Here, we report that endogenous NEK1 and C21ORF2 form a tight complex in human cells. A C21ORF2 interaction domain "CID" at the C-terminus of NEK1 is necessary for its association with C21ORF2 in cells, and pathogenic mutations in this region disrupt the complex. AlphaFold modelling predicts an extended binding interface between a leucine-rich repeat domain in C21ORF2 and the NEK1-CID, and our model may explain why pathogenic mutations perturb the complex. We show that NEK1 mutations that inhibit kinase activity or weaken its association with C21ORF2 severely compromise ciliogenesis, and that C21ORF2, like NEK1 is required for homologous recombination. These data enhance our understanding of how the NEK1 kinase is regulated, and they shed light on NEK1-C21ORF2-associated diseases.
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Affiliation(s)
- Mateusz Gregorczyk
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Graziana Pastore
- The Lunenfeld-Tannenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Ivan Muñoz
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Thomas Carroll
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Johanna Streubel
- German Cancer Research Centre (DKFZ), Centre for Organismal Studies, University of Heidelberg, Heidelberg, Germany
- DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Meagan Munro
- The Lunenfeld-Tannenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Pawel Lis
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Sven Lange
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Frederic Lamoliatte
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Thomas Macartney
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Rachel Toth
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Fiona Brown
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - James Hastie
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
| | - Gislene Pereira
- German Cancer Research Centre (DKFZ), Centre for Organismal Studies, University of Heidelberg, Heidelberg, Germany
- DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Daniel Durocher
- The Lunenfeld-Tannenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - John Rouse
- MRC Protein Phosphorylation and Ubiquitylation Unit, Wellcome Trust Biocentre, University of Dundee, Dundee, UK
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40
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Sirohi N, Duker AL, Bober MB, DeFelice ML. Immune Deficiency in Microcephalic Osteodysplastic Primordial Dwarfism Type I/III. J Clin Immunol 2023; 43:895-897. [PMID: 36807220 DOI: 10.1007/s10875-023-01447-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 02/05/2023] [Indexed: 02/21/2023]
Affiliation(s)
- Neha Sirohi
- Division of Allergy/Immunology, Nemours Children's Health, Wilmington, DE, USA
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
| | - Angela L Duker
- Division of Medical Genetics, Nemours Children's Health, Wilmington, DE, USA
| | - Michael B Bober
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
- Division of Medical Genetics, Nemours Children's Health, Wilmington, DE, USA
| | - Magee L DeFelice
- Division of Allergy/Immunology, Nemours Children's Health, Wilmington, DE, USA.
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA.
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41
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Li S, Lyu S, Fu W, Hu Y, Yue H, Chen L, Zhang Z. Clinical and genetic profiles of 985 Chinese families with skeletal dysplasia. Chin Med J (Engl) 2023; 136:1485-1487. [PMID: 37334733 PMCID: PMC10278755 DOI: 10.1097/cm9.0000000000002654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Indexed: 06/20/2023] Open
Affiliation(s)
- Shanshan Li
- Shanghai Clinical Research Center of Bone Disease, Department of Osteoporosis and Bone Disease, Shanghai Jiao Tong University of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Shanshan Lyu
- Shanghai Clinical Research Center of Bone Disease, Department of Osteoporosis and Bone Disease, Shanghai Jiao Tong University of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
- Department of Endocrinology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210000, China
| | - Wenzhen Fu
- Shanghai Clinical Research Center of Bone Disease, Department of Osteoporosis and Bone Disease, Shanghai Jiao Tong University of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yunqiu Hu
- Shanghai Clinical Research Center of Bone Disease, Department of Osteoporosis and Bone Disease, Shanghai Jiao Tong University of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Hua Yue
- Shanghai Clinical Research Center of Bone Disease, Department of Osteoporosis and Bone Disease, Shanghai Jiao Tong University of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Lin Chen
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Zhenlin Zhang
- Shanghai Clinical Research Center of Bone Disease, Department of Osteoporosis and Bone Disease, Shanghai Jiao Tong University of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
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42
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Wiegand A, Kastury R, Neogi A, Mani A, Bale A, Cox A. FKBP14 kyphoscoliotic Ehlers-Danlos syndrome misdiagnosed as Larsen syndrome: a case report. Cold Spring Harb Mol Case Stud 2023; 9:a006281. [PMID: 37433679 PMCID: PMC10393184 DOI: 10.1101/mcs.a006281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/10/2023] [Indexed: 07/13/2023] Open
Abstract
Hereditary connective tissue disorders have overlapping phenotypes, particularly in regard to musculoskeletal features. This contributes to the challenge of phenotype-based clinical diagnoses. However, some hereditary connective tissue disorders have distinct cardiovascular manifestations that require early intervention and specific management. Molecular testing has increased the ability to categorize and diagnose distinct hereditary connective tissue disorders. A 42-yr-old female with a clinical diagnosis of Larsen syndrome from birth presented for genetic testing based on her recent diagnosis of premenopausal breast cancer. She had a past medical history of multiple carotid dissections. As she never had confirmatory molecular genetic testing for Larsen syndrome, whole-exome sequencing was utilized to assess both hereditary cancer predisposition syndromes and connective tissue disorders. A homozygous pathogenic variant in the FKBP14 gene was identified associated with FKBP14 kyphoscoliotic Ehlers-Danlos syndrome. We recommend that patients with a clinical diagnosis of Larsen syndrome undergo broad-based molecular sequencing for multiple hereditary connective tissue disorders. Molecular diagnosis is particularly crucial for all individuals who have a history of significant vascular events in the setting of a clinical diagnosis only. Early diagnosis of a hereditary connective tissue disorder with vascular features allows for screening and subsequent prevention of cardiovascular events.
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Affiliation(s)
- Amy Wiegand
- Smilow Cancer Genetics and Prevention Program, Yale New Haven Health, New Haven, Connecticut 06510, USA;
| | - Rama Kastury
- Department of Pediatric and Adolescent Gynecology, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Arpita Neogi
- Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, Connecticut 06510, USA
| | - Arya Mani
- Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, Connecticut 06510, USA
| | - Allen Bale
- Department of Genetics, Yale School of Medicine, New Haven, Connecticut 06510, USA
| | - Allison Cox
- Department of Genetics, Yale School of Medicine, New Haven, Connecticut 06510, USA
- Department of Pathology and Laboratory Medicine at University of Rochester Medical Center, Rochester, New York 14642, USA
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Saito S, Mizumoto S, Yonekura T, Yamashita R, Nakano K, Okubo T, Yamada S, Okamura T, Furuichi T. Mice lacking nucleotide sugar transporter SLC35A3 exhibit lethal chondrodysplasia with vertebral anomalies and impaired glycosaminoglycan biosynthesis. PLoS One 2023; 18:e0284292. [PMID: 37053259 PMCID: PMC10101523 DOI: 10.1371/journal.pone.0284292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/28/2023] [Indexed: 04/14/2023] Open
Abstract
SLC35A3 is considered an uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) transporter in mammals and regulates the branching of N-glycans. A missense mutation in SLC35A3 causes complex vertebral malformation (CVM) in cattle. However, the biological functions of SLC35A3 have not been fully clarified. To address these issues, we have established Slc35a3-/-mice using CRISPR/Cas9 genome editing system. The generated mutant mice were perinatal lethal and exhibited chondrodysplasia recapitulating CVM-like vertebral anomalies. During embryogenesis, Slc35a3 mRNA was expressed in the presomitic mesoderm of wild-type mice, suggesting that SLC35A3 transports UDP-GlcNAc used for the sugar modification that is essential for somite formation. In the growth plate cartilage of Slc35a3-/-embryos, extracellular space was drastically reduced, and many flat proliferative chondrocytes were reshaped. Proliferation, apoptosis and differentiation were not affected in the chondrocytes of Slc35a3-/-mice, suggesting that the chondrodysplasia phenotypes were mainly caused by the abnormal extracellular matrix quality. Because these histological abnormalities were similar to those observed in several mutant mice accompanying the impaired glycosaminoglycan (GAG) biosynthesis, GAG levels were measured in the spine and limbs of Slc35a3-/-mice using disaccharide composition analysis. Compared with control mice, the amounts of heparan sulfate, keratan sulfate, and chondroitin sulfate/dermatan sulfate, were significantly decreased in Slc35a3-/-mice. These findings suggest that SLC35A3 regulates GAG biosynthesis and the chondrodysplasia phenotypes were partially caused by the decreased GAG synthesis. Hence, Slc35a3-/- mice would be a useful model for investigating the in vivo roles of SLC35A3 and the pathological mechanisms of SLC35A3-associated diseases.
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Affiliation(s)
- Soichiro Saito
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Aichi, Japan
| | - Tsukasa Yonekura
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | - Rina Yamashita
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | - Kenta Nakano
- Department of Laboratory Animal Medicine, Research Institute, National Center for Global Health and Medicine (NCGM), Shinjuku-ku, Tokyo, Japan
| | - Tadashi Okubo
- Department of Laboratory Animal Science, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Aichi, Japan
| | - Tadashi Okamura
- Department of Laboratory Animal Medicine, Research Institute, National Center for Global Health and Medicine (NCGM), Shinjuku-ku, Tokyo, Japan
| | - Tatsuya Furuichi
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
- Laboratory of Laboratory Animal Science and Medicine, Graduate School of Veterinary Sciences, Iwate University, Morioka, Iwate, Japan
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Dicks AR, Maksaev GI, Harissa Z, Savadipour A, Tang R, Steward N, Liedtke W, Nichols CG, Wu CL, Guilak F. Skeletal dysplasia-causing TRPV4 mutations suppress the hypertrophic differentiation of human iPSC-derived chondrocytes. eLife 2023; 12:e71154. [PMID: 36810131 PMCID: PMC9949800 DOI: 10.7554/elife.71154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 02/03/2023] [Indexed: 02/24/2023] Open
Abstract
Mutations in the TRPV4 ion channel can lead to a range of skeletal dysplasias. However, the mechanisms by which TRPV4 mutations lead to distinct disease severity remain unknown. Here, we use CRISPR-Cas9-edited human-induced pluripotent stem cells (hiPSCs) harboring either the mild V620I or lethal T89I mutations to elucidate the differential effects on channel function and chondrogenic differentiation. We found that hiPSC-derived chondrocytes with the V620I mutation exhibited increased basal currents through TRPV4. However, both mutations showed more rapid calcium signaling with a reduced overall magnitude in response to TRPV4 agonist GSK1016790A compared to wildtype (WT). There were no differences in overall cartilaginous matrix production, but the V620I mutation resulted in reduced mechanical properties of cartilage matrix later in chondrogenesis. mRNA sequencing revealed that both mutations up-regulated several anterior HOX genes and down-regulated antioxidant genes CAT and GSTA1 throughout chondrogenesis. BMP4 treatment up-regulated several essential hypertrophic genes in WT chondrocytes; however, this hypertrophic maturation response was inhibited in mutant chondrocytes. These results indicate that the TRPV4 mutations alter BMP signaling in chondrocytes and prevent proper chondrocyte hypertrophy, as a potential mechanism for dysfunctional skeletal development. Our findings provide potential therapeutic targets for developing treatments for TRPV4-mediated skeletal dysplasias.
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Affiliation(s)
- Amanda R Dicks
- Department of Biomedical Engineering, Washington University in St. LouisSt LouisUnited States
- Department of Orthopedic Surgery, Washington University School of Medicine, St. LouisSt LouisUnited States
- Shriners Hospitals for Children - St. LouisSt. LouisUnited States
| | - Grigory I Maksaev
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. LouisSt LouisUnited States
| | - Zainab Harissa
- Department of Biomedical Engineering, Washington University in St. LouisSt LouisUnited States
- Department of Orthopedic Surgery, Washington University School of Medicine, St. LouisSt LouisUnited States
- Shriners Hospitals for Children - St. LouisSt. LouisUnited States
| | - Alireza Savadipour
- Department of Orthopedic Surgery, Washington University School of Medicine, St. LouisSt LouisUnited States
- Shriners Hospitals for Children - St. LouisSt. LouisUnited States
- Department of Mechanical Engineering and Material Science, Washington University in St. LouisSt. LouisUnited States
| | - Ruhang Tang
- Department of Orthopedic Surgery, Washington University School of Medicine, St. LouisSt LouisUnited States
- Shriners Hospitals for Children - St. LouisSt. LouisUnited States
| | - Nancy Steward
- Department of Orthopedic Surgery, Washington University School of Medicine, St. LouisSt LouisUnited States
- Shriners Hospitals for Children - St. LouisSt. LouisUnited States
| | - Wolfgang Liedtke
- Department of Neurology, Duke University School of MedicineDurhamUnited States
- Department of Molecular Pathobiology - NYU College of DentistryNew YorkUnited States
| | - Colin G Nichols
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. LouisSt LouisUnited States
| | - Chia-Lung Wu
- Department of Orthopaedics and Rehabilitation, Center for Musculoskeletal Research, University of RochesterRochesterUnited States
| | - Farshid Guilak
- Department of Orthopedic Surgery, Washington University School of Medicine, St. LouisSt LouisUnited States
- Shriners Hospitals for Children - St. LouisSt. LouisUnited States
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Bakar A, Shams S, Bibi N, Ullah A, Ahmad W, Jelani M, Muthaffar OY, Abdulkareem AA, Abujamel TS, Haque A, Naseer MI, Khan B. A Novel Homozygous Nonsense Variant in the DYM Underlies Dyggve-Melchior-Clausen Syndrome in Large Consanguineous Family. Genes (Basel) 2023; 14:510. [PMID: 36833437 PMCID: PMC9956627 DOI: 10.3390/genes14020510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023] Open
Abstract
(1) Background: Dyggve-Melchior-Clausen Syndrome is a skeletal dysplasia caused by a defect in the DYM gene (OMIM number 607461). Pathogenic variants in the gene have been reported to cause Dyggve-Melchior-Clausen (DMC; OMIM 223800) dysplasia and Smith-McCort (SMC; OMIM 607326) dysplasia. (2) Methods: In the present study, large consanguineous families with five affected individuals with osteochondrodysplasia phenotypes were recruited. The family members were analyzed by polymerase chain reaction for homozygosity mapping using highly polymorphic microsatellite markers. Subsequent to linkage analysis, the coding exons and exon intron border of the DYM gene were amplified. The amplified products were then sent for Sanger sequencing. The structural effect of the pathogenic variant was analyzed by different bioinformatics tools. (3) Results: Homozygosity mapping revealed a 9 Mb homozygous region on chromosome 18q21.1 harboring DYM shared by all available affected individuals. Sanger sequencing of the coding exons and exon intron borders of the DYM gene revealed a novel homozygous nonsense variant [DYM (NM_017653.6):c.1205T>A, p.(Leu402Ter)] in affected individuals. All the available unaffected individuals were either heterozygous or wild type for the identified variant. The identified mutation results in loss of protein stability and weekend interactions with other proteins making them pathogenic (4) Conclusions: This is the second nonsense mutation reported in a Pakistani population causing DMC. The study presented would be helpful in prenatal screening, genetic counseling, and carrier testing of other members in the Pakistani community.
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Affiliation(s)
- Abu Bakar
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Sulaiman Shams
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Nousheen Bibi
- Department of Bioinformatics, Shaheed Benazir Bhutto Women University, Peshawar 25120, Pakistan
| | - Asmat Ullah
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Department of Biochemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan
| | - Wasim Ahmad
- Department of Biochemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan
| | - Musharraf Jelani
- Rare Diseases Genetics and Genomics, Centre for Omic Sciences, Islamia College Peshawar, Peshawar 25120, Pakistan
| | - Osama Yousef Muthaffar
- Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Angham Abdulrhman Abdulkareem
- Faculty of Science, Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Turki S. Abujamel
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Absarul Haque
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21859, Saudi Arabia
| | - Muhammad Imran Naseer
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Bushra Khan
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
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Mo Q, Kulyar MFEA, Quan C, Ding Y, Zhang Y, Zhang L, Pan H, Li J. Thiram-induced hyperglycemia causes tibial dyschondroplasia by triggering aberrant ECM remodeling via the gut-pancreas axis in broiler chickens. J Hazard Mater 2023; 444:130368. [PMID: 36423455 DOI: 10.1016/j.jhazmat.2022.130368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/28/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Pesticide thiram is widely used in agriculture and has been demonstrated to cause tibial dyschondroplasia (TD) in birds. However, the underlying mechanism remains unclear. This work used multi-omics analysis to evaluate the molecular pathways of TD in broilers that were exposed to low level of thiram. Integrative analysis of transcriptomic, proteomic, and metabolomic revealed thiram activity in enhancing pathological ECM remodeling via attenuating the glycolysis pathway and activating the hexosamine and glucuronic acid pathways. Intriguingly, we found hyperglycemia as a crucial factor for ECM overproduction, which resulted in the development of TD. We further demonstrated that high glucose levels are caused by islet secretion dysfunction in thiram-treated broilers. A combination of factors, including lipid disorder, low-grade inflammation, and gut flora disturbance, might contribute to the dysregulation of insulin secretion. The current work revealed the underlying toxicological mechanisms of thiram-induced tibial dyschondroplasia through blood glucose disorder via the gut-pancreas axis in chickens for the first time, which makes it easier to figure out the health risks of pesticides for worldwide policy decisions.
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Affiliation(s)
- Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Muhammad Fakhar-E-Alam Kulyar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Chuxian Quan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanmei Ding
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yan Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Lihong Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Huachun Pan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
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Chouery E, Karam R, Mrad YN, Mehawej C, Dib El Jalbout N, Bleik J, Mahfoud D, Megarbane A. Spondyloocular Syndrome: A Report of an Additional Family and Phenotypic Spectrum Delineation. Genes (Basel) 2023; 14:497. [PMID: 36833424 PMCID: PMC9957273 DOI: 10.3390/genes14020497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/08/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Spondyloocular syndrome (SOS, OMIM # 605822) is a rare genetic disorder characterized by osseous and ocular manifestations, including generalized osteoporosis, multiple long bones fractures, platyspondyly, dense cataracts and retinal detachment, and dysmorphic facial features, with or without short stature, cardiopathy, hearing impairment, and intellectual disability. Biallelic mutations in the XYLT2 gene (OMIM * 608125), encoding the xylosyltransferase II, were shown to be responsible for this disease. To date, 22 cases with SOS have been described, with varying clinical presentations and a yet-to-be-established genotypic-phenotypic correlation. Two patients from a consanguineous Lebanese family that presented with SOS were included in this study. Whole exome sequencing revealed a novel homozygous nonsense mutation in XYLT2 (p.Tyr414*) in these patients. We review all previously reported cases with SOS, describe the second nonsense mutation in XYLT2, and contribute to a better delineation of the phenotypic spectrum of the disease.
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Affiliation(s)
- Eliane Chouery
- Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 13-5053, Lebanon
| | - Rim Karam
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 13-5053, Lebanon
| | - Yves Najm Mrad
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 13-5053, Lebanon
| | - Cybel Mehawej
- Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 13-5053, Lebanon
| | - Nahia Dib El Jalbout
- Department of Ophthalmology, Lebanese American University Medical Center, Rizk Hospital, Beirut P.O. Box 13-5053, Lebanon
| | - Jamal Bleik
- Department of Ophthalmology, Lebanese American University Medical Center, Rizk Hospital, Beirut P.O. Box 13-5053, Lebanon
| | - Daniel Mahfoud
- Department of Radiology, Gilbert and Rose-Marie Ghagoury School of Medicine, Lebanese American University, Byblos P.O. Box 13-5053, Lebanon
| | - Andre Megarbane
- Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 13-5053, Lebanon
- Institut Jérôme Lejeune, 75015 Paris, France
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Varshney K, Narayanachar SG, Girisha KM, Bhavani GS, Narayanan D, Phadke S, Nampoothiri S, Udupi GA, Raghupathy P, Nair M, Geetha TS, Bhat M. Clinical, radiological and molecular studies in 24 individuals with Dyggve-Melchior-Clausen dysplasia and Smith-McCort dysplasia from India. J Med Genet 2023; 60:204-211. [PMID: 35477554 DOI: 10.1136/jmedgenet-2021-108098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 04/10/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Dyggve-Melchior-Clausen dysplasia (DMC) and Smith-McCort dysplasia (SMC types 1 and 2) are rare spondyloepimetaphyseal dysplasias with identical radiological findings. The presence of intellectual disability in DMC and normal intellect in SMC differentiates the two. DMC and SMC1 are allelic and caused by homozygous or compound heterozygous variants in DYM. SMC2 is caused by variations in RAB33B. Both DYM and RAB33B are important in intravesicular transport and function in the Golgi apparatus. METHODS Detailed clinical phenotyping and skeletal radiography followed by molecular testing were performed in all affected individuals. Next-generation sequencing and Sanger sequencing were used to confirm DYM and RAB33B variants. Sanger sequencing of familial variants was done in all parents. RESULTS 24 affected individuals from seven centres are described. 18 had DMC and 6 had SMC2. Parental consanguinity was present in 15 of 19 (79%). Height <3 SD and gait abnormalities were seen in 20 and 14 individuals, respectively. The characteristic radiological findings of lacy iliac crests and double-humped vertebral bodies were seen in 96% and 88% of the affected. Radiological findings became attenuated with age. 23 individuals harboured biallelic variants in either DYM or RAB33B. Fourteen different variants were identified, out of which 10 were novel. The most frequently occurring variants in this group were c.719 C>A (3), c.1488_1489del (2), c.1484dup (2) and c.1563+2T>C (2) in DYM and c.400C>T (2) and c.186del (2) in RAB33B. The majority of these have not been reported previously. CONCLUSION This large cohort from India contributes to the increasing knowledge of clinical and molecular findings in these rare 'Golgipathies'.
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Affiliation(s)
- Kruti Varshney
- Department of Clinical Genetics, Centre for Human Genetics, Bangalore, Karnataka, India
| | | | - Katta M Girisha
- Department of Medical Genetics, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Gandham SriLakshmi Bhavani
- Department of Medical Genetics, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Dhanyalakshmi Narayanan
- Department of Medical Genetics, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Shubha Phadke
- Department of Medical Genetics, SGPGIMS, Lucknow, Uttar Pradesh, India
| | - Sheela Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences and Reseacrh Centre, Kochi, Kerala, India
| | - Gautham Arunachal Udupi
- Department of Human Genetics, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
| | - Palany Raghupathy
- Department of Paediatric Endocrinology, Indira Gandhi Institute of Child Health, Bangalore, Karnataka, India
| | - Mohandas Nair
- Department of Paediatrics, Government Medical College, Kozhikode, Kerala, India
| | | | - Meenakshi Bhat
- Department of Clinical Genetics, Centre for Human Genetics, Bangalore, Karnataka, India
- Department of Paediatric Genetics, Indira Gandhi Institute of Child Health, Bangalore, Karnataka, India
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Tüysüz B, Kasap B, Sarıtaş M, Alkaya DU, Bozlak S, Kıykım A, Durmaz A, Yıldırım T, Akpınar E, Apak H, Vural M. Natural history and genetic spectrum of the Turkish metaphyseal dysplasia cohort, including rare types caused by biallelic COL10A1, COL2A1, and LBR variants. Bone 2023; 167:116614. [PMID: 36400164 DOI: 10.1016/j.bone.2022.116614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/28/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Metaphyseal chondrodysplasias are a heterogeneous group of diseases characterized by short and bowed long bones and metaphyseal abnormality. The aim of this study is to investigate the genetic etiology and prognostic findings in patients with metaphyseal dysplasia. METHODS Twenty-four Turkish patients were included in this study and 13 of them were followed for 2-21 years. COL10A1, RMRP sequencing and whole exome sequencing were performed. RESULTS Results: Seven heterozygous pathogenic variants in COL10A1 were detected in 17 patients with Schmid type metaphyseal chondrodysplasia(MCDS). The phenotype was more severe in patients with heterozygous missense variants (one in signal peptide domain at the N-terminus of the protein, the other, class-1 group mutation at NC1 domain) compared to the patients with truncating variants. Short stature and coxa vara deformity appeared after 3 and 5 years of age, respectively, while large femoral head resolved after the age of 13 years in MCDS group. Interestingly, one patient with severe phenotype also had a biallelic missense variant in NC1 domain of COL10A1. Three patients with biallelic mutations in RMRP had prenatal onset short stature with short limb, and typical findings of cartilage hair hypoplasia (CHH). While immunodeficiency or recurrent infections were not observed, resistant congenital anemia was detected in one. Biallelic mutation in LBR was described in a patient with prenatal onset short stature, short and curved limb and metaphyseal abnormalities. Unlike previously reported patients, this patient had ectodermal findings, similar to CHH. A biallelic COL2A1 mutation was also found in the patient with lower limb deformities and metaphyseal involvement without vertebral and epiphyseal changes. CONCLUSION Long-term clinical characteristics are presented in a metaphyseal dysplasia cohort, including rare types caused by biallelic COL10A1, COL2A1, and LBR variants. We also point out that the domains where mutations on COL10A1 take place are important in the genotype-phenotype relationship.
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Affiliation(s)
- Beyhan Tüysüz
- Department of Pediatric Genetics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey.
| | - Büşra Kasap
- Department of Pediatric Genetics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey; Department of Genetics, Istanbul University, Aziz Sancar Institute of Experimental Medicine, Istanbul, Turkey
| | - Merve Sarıtaş
- Department of Pediatric Genetics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey; Department of Genetics, Istanbul University, Aziz Sancar Institute of Experimental Medicine, Istanbul, Turkey
| | - Dilek Uludağ Alkaya
- Department of Pediatric Genetics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Serdar Bozlak
- Department of Pediatric Genetics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Ayça Kıykım
- Department of Pediatric Immunology and Allergy, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Asude Durmaz
- Department of Medical Genetics, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Timur Yıldırım
- Department of Orthopedics and Traumatology, University of Health Sciences Turkey, Baltalimani Bone Diseases Training and Research Center, Istanbul, Turkey
| | - Evren Akpınar
- Department of Orthopedics and Traumatology, University of Health Sciences Turkey, Baltalimani Bone Diseases Training and Research Center, Istanbul, Turkey
| | - Hilmi Apak
- Department of Pediatric Hematology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Mehmet Vural
- Department of Neonatology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey
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50
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Chougule A, Taur P, Gowri V, Desai MM. SPENCD Presenting with Evans Phenotype and Clinical Response to JAK1/2 Inhibitors-a Report of 2 Cases. J Clin Immunol 2023; 43:331-334. [PMID: 36376765 DOI: 10.1007/s10875-022-01400-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 10/30/2022] [Indexed: 11/16/2022]
Affiliation(s)
- Akshaya Chougule
- Department of Paediatric Immunology, B. J. Wadia Hospital for Children, Acharya Donde Marg, Parel, Mumbai, 400012, India
| | - Prasad Taur
- Department of Paediatric Immunology, B. J. Wadia Hospital for Children, Acharya Donde Marg, Parel, Mumbai, 400012, India
| | - Vijaya Gowri
- Department of Paediatric Immunology, B. J. Wadia Hospital for Children, Acharya Donde Marg, Parel, Mumbai, 400012, India
| | - Mukesh M Desai
- Department of Paediatric Immunology, B. J. Wadia Hospital for Children, Acharya Donde Marg, Parel, Mumbai, 400012, India.
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