1
|
Uchida N, Ishii T, Nishimura G, Sato T, Kuratsuji G, Nagasaki K, Hosokawa Y, Adachi E, Takasawa K, Kashimada K, Tsujioka Y, Hasegawa T. RMRP-related short stature: A report of six additional Japanese individuals with cartilage hair hypoplasia and literature review. Am J Med Genet A 2024; 194:e63562. [PMID: 38337186 DOI: 10.1002/ajmg.a.63562] [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: 11/15/2023] [Revised: 01/07/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Abstract
Biallelic pathogenic variants in RMRP, the gene encoding the RNA component of RNase mitochondrial RNA processing enzyme complex, have been reported in individuals with cartilage hair hypoplasia (CHH). CHH is prevalent in Finnish and Amish populations due to a founder pathogenic variant, n.71A > G. Based on the manifestations in the Finnish and Amish individuals, the hallmarks of CHH are prenatal-onset growth failure, metaphyseal dysplasia, hair hypoplasia, immunodeficiency, and other extraskeletal manifestations. Herein, we report six Japanese individuals with CHH from four families. All probands presented with moderate short stature with mild metaphyseal dysplasia or brachydactyly. One of them had hair hypoplasia and the other immunodeficiency. By contrast, the affected siblings of two families showed only mild short stature. We also reviewed all previously reported 13 Japanese individuals. No n.71A > G allele was detected. The proportions of Japanese versus Finnish individuals were 0% versus 70% for birth length < -2.0 SD, 84% versus 100% for metaphyseal dysplasia and 26% versus 88% for hair hypoplasia. Milder manifestations in the Japanese individuals may be related to the difference of genotypes. The mildest form of CHH phenotypes is mild short stature without overt skeletal alteration or extraskeletal manifestation and can be termed "RMRP-related short stature".
Collapse
Affiliation(s)
- Noboru Uchida
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
- Department of Pediatrics, Saiseikai Utsunomiya Hospital, Utsunomiya, Japan
| | - Tomohiro Ishii
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Gen Nishimura
- Department of Radiology, Musashino Yohwakai Hospital, Tokyo, Japan
| | - Takeshi Sato
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Gen Kuratsuji
- Department of Pediatrics, Niigata Prefectural Central Hospital, Niigata, Japan
| | - Keisuke Nagasaki
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuki Hosokawa
- Department of Pediatrics, Kurashiki Central Hospital, Kurashiki, Japan
| | - Eriko Adachi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and University (TMDU), Tokyo, Japan
| | - Kei Takasawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and University (TMDU), Tokyo, Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and University (TMDU), Tokyo, Japan
| | - Yuko Tsujioka
- Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
2
|
Wu X, Liu Y, Li Y, Tang Z, Li A, Zhang H. Molecular mechanism of thiram-induced abnormal chondrocyte proliferation via lncRNA MSTRG.74.1-BNIP3 axis. Pestic Biochem Physiol 2024; 201:105847. [PMID: 38685209 DOI: 10.1016/j.pestbp.2024.105847] [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: 12/14/2023] [Revised: 02/25/2024] [Accepted: 03/01/2024] [Indexed: 05/02/2024]
Abstract
Thiram, a widely used organic pesticide in agriculture, exhibits both bactericidal and insecticidal effects. However, prolonged exposure to thiram has been linked to bone deformities and cartilage damage, contributing to the development of tibial dyschondroplasia (TD) in broilers and posing a significant threat to global agricultural production. TD, a prevalent nutritional metabolic disease, manifests as clinical symptoms like unstable standing, claudication, and sluggish movement in affected broilers. In recent years, there has been growing recognition of the regulatory role of long non-coding RNA (lncRNA) in tibial cartilage formation among broilers through diverse signaling pathways. This study employs in vitro experimental models, growth performance analysis, and clinical observation to assess broilers' susceptibility to thiram pollution. Transcriptome sequencing analysis revealed a significant elevation in the expression of lncRNA MSTRG.74.1 in both the con group and the thiram-induced in vitro group. The results showed that lncRNA MSTRG.74.1 plays a pivotal role in influencing the proliferation and abnormal differentiation of chondrocytes. This regulation occurs through the negative modulation of apoptotic genes, including Bax, Cytc, Bcl2, Apaf1, and Caspase3, along with genes Atg5, Beclin1, LC3b, and protein p62. Moreover, the overexpression of lncRNA MSTRG.74.1 was found to regulate broiler chondrocyte development by upregulating BNIP3. In summary, this research sheds light on thiram-induced abnormal chondrocyte proliferation in TD broilers, emphasizing the significant regulatory role of the lncRNA MSTRG.74.1-BNIP3 axis, which will contribute to our understanding of the molecular mechanisms underlying TD development in broilers exposed to thiram.
Collapse
Affiliation(s)
- Xiaomei Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yingwei Liu
- Guangzhou National Laboratory, Guangzhou 510000, China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Aoyun Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, PR China.
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
3
|
Rodríguez Hidalgo LA, Cribillero Meza NC, Ruíz Caballero DC, Concepción Urteaga LA, Vega Fernández AG, Cornejo Portella JL. Osteochondroplastic tracheobronchopathy: Four case reports. Medwave 2024; 24:e2792. [PMID: 38588532 DOI: 10.5867/medwave.2024.03.2792] [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: 04/10/2024] Open
Abstract
Introduction Osteochondroplastic tracheobronchopathy is a rare benign chronic disease of unknown etiology. Bronchoscopy remains the gold standard for diagnosing osteochondroplastic tracheobronchopathy. Its typical findings are described as a cobblestone, rock garden, mountainscape, or stalactite cave appearance. The present work aims to show the main clinical features of this rare pathology. Clinical cases The clinical data of four middle-aged patients, three men and one woman, were analyzed. The main clinical symptoms were chronic cough, dyspnea, and dysphonia. The patient's preliminary diagnosis was made by computed axial tomography of the chest, confirmed by bronchoscopy and histopathological examination. Treatment included medication for symptoms and, in one case, cryosurgery and argon plasma coagulation. Discussion Diagnosing osteochondroplastic tracheobronchopathy was not easy, given its uncommon nature and non-specific symptoms often found in other pathologies. No case series articles on this pathology have been published in Peru. Therefore, we used the original articles published in other countries to reference our findings. Conclusion Osteochondroplastic tracheopathy is a benign disease that typically affects adults. Men are more likely to be affected. Its clinical manifestations are non-specific and frequently of pharyngeal origin, and the cause is not yet defined. Chest computed axial tomography combined with bronchoscopy are the main diagnostic procedures. There is no standard treatment with consistent therapeutic effects.
Collapse
|
4
|
Jiang H, Yang X, Guo Y. Multi-Nodule of Large Airway: Tracheobronchopathia Osteochondroplastica, Two Cases Report and Literature Review. Ear Nose Throat J 2024; 103:NP226-NP228. [PMID: 34636258 DOI: 10.1177/01455613211051662] [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: 11/17/2022] Open
Abstract
We report two subjects with tracheobronchopathia osteochondroplastica (TO), including the clinical manifestations, histological findings, and clinical treatments, which were analyzed retrospectively. One patient with TO was a 60-year-old woman, and the other was a 47-year-old man. The main clinical manifestations were cough, chest pain, and dyspnea. Computed tomography (CT) images showed that TO mainly occurred in the trachea and main bronchus. Histological analysis showed inflammatory exudation, squamous metaplasia, submucosal cartilaginous, and ossification. We present the two cases to increase physician and patient awareness of this benign disease and to improve their understanding of the disease manifestations and potential complications.
Collapse
Affiliation(s)
- He Jiang
- Department of Pathology, Xi'an Daxing Hospital, Xi'an, China
| | - Xiaoying Yang
- Department of Department of Respiratory and Critical Care Medicine, Xi'an Daxing Hospital, Xi'an, China
| | - Ying Guo
- Department of Pathology, Xi'an Daxing Hospital, Xi'an, China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi'an, China
| |
Collapse
|
5
|
Pagnamenta AT, Belles RS, Salbert BA, Wentzensen IM, Guillen Sacoto MJ, Santos FJR, Caffo A, Ferla M, Banos‐Pinero B, Pawliczak K, Makvand M, Najmabadi H, Maroofian R, Lester T, Yanez‐Felix AL, Villarroel‐Cortes CE, Xia F, Al Fayez K, Al Hashem A, Shears D, Irving M, Offiah AC, Kariminejad A, Taylor JC. The prevalence and phenotypic range associated with biallelic PKDCC variants. Clin Genet 2023; 104:121-126. [PMID: 36896672 PMCID: PMC10952701 DOI: 10.1111/cge.14324] [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: 11/30/2022] [Revised: 02/08/2023] [Accepted: 03/01/2023] [Indexed: 03/11/2023]
Abstract
PKDCC encodes a component of Hedgehog signalling required for normal chondrogenesis and skeletal development. Although biallelic PKDCC variants have been implicated in rhizomelic shortening of limbs with variable dysmorphic features, this association was based on just two patients. In this study, data from the 100 000 Genomes Project was used in conjunction with exome sequencing and panel-testing results accessed via international collaboration to assemble a cohort of eight individuals from seven independent families with biallelic PKDCC variants. The allelic series included six frameshifts, a previously described splice-donor site variant and a likely pathogenic missense variant observed in two families that was supported by in silico structural modelling. Database queries suggested that the prevalence of this condition is between 1 of 127 and 1 of 721 in clinical cohorts with skeletal dysplasia of unknown aetiology. Clinical assessments, combined with data from previously published cases, indicate a predominantly upper limb involvement. Micrognathia, hypertelorism and hearing loss appear to be commonly co-occurring features. In conclusion, this study strengthens the link between biallelic inactivation of PKDCC and rhizomelic limb-shortening and will enable clinical testing laboratories to better interpret variants in this gene.
Collapse
Affiliation(s)
- Alistair T. Pagnamenta
- NIHR Biomedical Research Centre, Wellcome Centre for Human GeneticsUniversity of OxfordOxfordUK
| | | | | | | | | | - Francis Jeshira Reynoso Santos
- Joe DiMaggio Children's HospitalHollywoodFloridaUSA
- Division of Human GeneticsChildren's Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA
| | - Alesky Caffo
- Joe DiMaggio Children's HospitalHollywoodFloridaUSA
| | - Matteo Ferla
- NIHR Biomedical Research Centre, Wellcome Centre for Human GeneticsUniversity of OxfordOxfordUK
| | - Benito Banos‐Pinero
- Oxford Genetics LaboratoriesOxford University Hospitals NHS Foundation Trust, The Churchill HospitalOxfordUK
| | | | - Mina Makvand
- Kariminejad‐Najmabadi Pathology & Genetics CenterTehranIran
| | - Hossein Najmabadi
- Kariminejad‐Najmabadi Pathology & Genetics CenterTehranIran
- Genetics Research CenterUniversity of Social Welfare & Rehabilitation ScienceTehranIran
| | | | - Reza Maroofian
- Department of Neuromuscular DiseasesUCL Queen Square Institute of Neurology, University College LondonLondonUK
| | - Tracy Lester
- Oxford Genetics LaboratoriesOxford University Hospitals NHS Foundation Trust, The Churchill HospitalOxfordUK
| | | | | | - Fan Xia
- Baylor GeneticsHoustonTexasUSA
| | - Khowla Al Fayez
- Department of Pediatrics, Division of Clinical Genetic and Metabolic MedicinePrince Sultan Medical Military CityRiyadhSaudi Arabia
| | - Amal Al Hashem
- Department of Pediatrics, Division of Clinical Genetic and Metabolic MedicinePrince Sultan Medical Military CityRiyadhSaudi Arabia
| | - Deborah Shears
- Oxford Centre for Genomic MedicineOxford University Hospitals NHS Foundation TrustOxfordUK
| | - Melita Irving
- Department of Clinical GeneticsGuy's and St Thomas' NHS Foundation TrustLondonUK
| | - Amaka C. Offiah
- Department of Oncology & MetabolismUniversity of SheffieldSheffieldUK
| | | | - Jenny C. Taylor
- NIHR Biomedical Research Centre, Wellcome Centre for Human GeneticsUniversity of OxfordOxfordUK
| |
Collapse
|
6
|
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.
Collapse
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
| |
Collapse
|
7
|
Uzman CY, Çankaya T, Güleryüz H, Ülgenalp A, Bozkaya ÖG. Spondyloepimetaphyseal dysplasia-Maroteaux type due to dominant TRPV4 mutation: expanding the phenotype with a case report. Skeletal Radiol 2023; 52:115-118. [PMID: 35776137 DOI: 10.1007/s00256-022-04105-6] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/17/2022] [Accepted: 06/20/2022] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Dominant pathogenic mutations in the TRPV4 gene give rise to a wide spectrum of abnormal phenotypes, including bone dysplasia as well as spinal muscular atrophy and hereditary motor and sensory neuropathy. Spondyloepimetaphyseal dysplasias (SEMDs) are autosomal dominant skeletal dysplasias characterized by mild epiphyseal dysplasia, flared metaphyses, prominent joints, spondyler dysplasia, and brachydactyly with various carpal, metacarpal, and finger malformations. CASE PRESENTATION We present a boy who has the clinical and radiological signs of SEMD-M with a dominant TRPV4 mutation. He also has some striking findings that have not been seen in these patients before, and they may be able to provide assistance to medical professionals in the process of diagnosis.These include a shorter distance between his lumbar vertebrae, congenital contractures, and an arachnoid cyst.
Collapse
Affiliation(s)
- Ceren Yılmaz Uzman
- Faculty of Medicine, Department of Pediatrics, Division of Pediatric Genetics, Dokuz Eylul University, İnciraltı mahallesi Mithatpaşa street no: 56, Balçova, İzmir, 35330, Turkey.
| | - Tufan Çankaya
- Faculty of Medicine, Department of Medical Genetics, Dokuz Eylul University, İzmir, Turkey
| | - Handan Güleryüz
- Faculty of Medicine, Department of Radiology, Division of Pediatric Radiology, Dokuz Eylul University School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Ayfer Ülgenalp
- Faculty of Medicine, Department of Pediatrics, Division of Pediatric Genetics, Dokuz Eylul University, İnciraltı mahallesi Mithatpaşa street no: 56, Balçova, İzmir, 35330, Turkey
- Faculty of Medicine, Department of Medical Genetics, Dokuz Eylul University, İzmir, Turkey
| | - Özlem Giray Bozkaya
- Faculty of Medicine, Department of Pediatrics, Division of Pediatric Genetics, Dokuz Eylul University, İnciraltı mahallesi Mithatpaşa street no: 56, Balçova, İzmir, 35330, Turkey
| |
Collapse
|
8
|
Simsek-Kiper PO, Jacob P, Upadhyai P, Taşkıran ZE, Guleria VS, Karaosmanoglu B, Imren G, Gocmen R, Bhavani GS, Kausthubham N, Shah H, Utine GE, Boduroglu K, Girisha KM. Biallelic loss-of-function variants in EXOC6B are associated with impaired primary ciliogenesis and cause spondylo-epi-metaphyseal dysplasia with joint laxity type 3. Hum Mutat 2022; 43:2116-2129. [PMID: 36150098 PMCID: PMC7615863 DOI: 10.1002/humu.24478] [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: 02/21/2022] [Revised: 08/30/2022] [Accepted: 09/21/2022] [Indexed: 01/25/2023]
Abstract
Spondylo-epi-metaphyseal dysplasias with joint laxity, type 3 (SEMDJL3) is a genetic skeletal disorder characterized by multiple joint dislocations, caused by biallelic pathogenic variants in the EXOC6B gene. Only four individuals from two families have been reported to have this condition to date. The molecular pathogenesis related to primary ciliogenesis has not been enumerated in subjects with SEMDJL3. In this study, we report two additional affected individuals from unrelated families with biallelic pathogenic variants, c.2122+15447_2197-59588del and c.401T>G in EXOC6B identified by exome sequencing. One of the affected individuals had an intellectual disability and central nervous system anomalies, including hydrocephalus, hypoplastic mesencephalon, and thin corpus callosum. Using the fibroblast cell lines, we demonstrate the primary evidence for the abrogation of exocytosis in an individual with SEMDLJ3 leading to impaired primary ciliogenesis. Osteogenesis differentiation and pathways related to the extracellular matrix were also found to be reduced. Additionally, we provide a review of the clinical and molecular profile of all the mutation-proven patients reported hitherto, thereby further characterizing SEMDJL3. SEMDJL3 with biallelic pathogenic variants in EXOC6B might represent yet another ciliopathy with central nervous system involvement and joint dislocations.
Collapse
Affiliation(s)
| | - Prince Jacob
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Priyanka Upadhyai
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Zihni Ekim Taşkıran
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Vishal S. Guleria
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Beren Karaosmanoglu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gozde Imren
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Rahsan Gocmen
- Department of Radiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gandham S. Bhavani
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Neethukrishna Kausthubham
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Hitesh Shah
- Department of Pediatric Orthopaedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Gulen Eda Utine
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Koray Boduroglu
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Katta M. Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| |
Collapse
|
9
|
Kulyar MFEA, Mo Q, Yao W, Ding Y, Yan Z, Du H, Pan H, Li K, Gao J, Shahzad M, Mansoor MK, Iqbal M, Waqas M, Akhtar M, Bhutta ZA, Li J. Chlorogenic acid suppresses miR-460a in the regulation of Bcl-2, causing interleukin-1β reduction in thiram exposed chondrocytes via caspase-3/caspase-7 pathway. Phytomedicine 2022; 104:154296. [PMID: 35809377 DOI: 10.1016/j.phymed.2022.154296] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 03/11/2022] [Revised: 06/02/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Apoptosis is thought to be involved in all processes, including normal cell cycle, immune system, atrophy, embryonic development, and chemical-induced cellular damage. However, if the normal apoptotic process fails, the results might be disastrous, e.g., chondrocytes damage in tibial dyschondroplasia (TD). TD is a worldwide issue in the poultry sector due to thiram toxicity. Thiram (Tetramethyl thiuram disulfide) is a dithiocarbamate pesticide and fungicide commonly used in horticulture to treat grains meant for seed protection and preservation. PURPOSE According to prior studies, chlorogenic acid (CGA) is becoming essential for regulating apoptosis. But still, the specific role of CGA in chondrocyte cells remains unclear. The present study explored the molecular mechanism of CGA on chondrocytes' apoptosis with B-cell lymphoma 2 signaling under the effect of miR-460a. METHODS An in vivo and in vitro study was performed according to our previously developed methodology. Flow cytometry, western blotting, reverse transcription-quantitative polymerase chain reaction, and immunofluorescence assay were used to investigate the involvement of apoptosis and inflammasome related pathways. RESULTS The CGA decreased the apoptosis rate with the deactivation of miR-460a, accompanied by the activation of Bcl-2. The high expression of miR-460a reduced the cell viability of chondrocytes in vitro and in vivo, that led to the interleukin-1β production. While the apoptotic executioners (caspase-3 and caspase-7) acted upstream in miR-460a overexpressing cells, and its depletion downgraded these executioners. The CGA administrated cells negatively regulated miR-460a expression and thus indicating the deactivation of the apoptotic and inflammasome related pathways. CONCLUSION Chlorogenic acid had a negative effect on miR-460a, setting off specific feedback to regulate apoptotic and inflammasome pathways, which might be a key feature for chondrocytes' survival.
Collapse
Affiliation(s)
| | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Department of Microbiology and Plant Pathology, University of California-Riverside, Riverside, CA 92521, USA
| | - Yanmei Ding
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhang Yan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Haitao Du
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Huachun Pan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kewei Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jindong Gao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Shahzad
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Muhammad Khalid Mansoor
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Muhammad Waqas
- Faculty of Veterinary & Animal Sciences, University of Poonch Rawalakot, Azad Jammu & Kashmir, 12350, Pakistan
| | - Muhammad Akhtar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zeeshan Ahmad Bhutta
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Department of Microbiology and Plant Pathology, University of California-Riverside, Riverside, CA 92521, USA.
| |
Collapse
|
10
|
Dong PF, Jin C, Lian CY, Wang L, Wang ZY. Enhanced Extracellular Matrix Degradation in Growth Plate Contributes to Manganese Deficiency-Induced Tibial Dyschondroplasia in Broiler Chicks. Biol Trace Elem Res 2022; 200:3326-3335. [PMID: 34546491 DOI: 10.1007/s12011-021-02921-w] [Citation(s) in RCA: 4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/08/2021] [Indexed: 11/26/2022]
Abstract
Manganese (Mn) is a crucial trace element for poultry nutrition, and its deficiency compromises tibial cartilage development, leading to perosis and a higher incidence of slipped tendon. Tibial dyschondroplasia (TD) is a metabolic cartilage disease characterized by disruption of endochondral bone formation, which is closely related to extracellular matrix (ECM) degradation, in which Mn deficiency plays an important role. Previous studies have confirmed the role of matrix metalloproteinases (MMPs) in the pathogenesis of TD, but whether dysregulated ECM degradation and MMP expression profiles in growth plate are involved in Mn deficiency-induced avian TD has not been fully elucidated yet. Thus, this study was conducted to clarify these issues. Firstly, we successfully established TD model induced by Mn deficiency in broiler chicks. Mn deficiency decreased the number of chondrocytes, contents of proteoglycan, and type II collagen in tibial growth plate, demonstrating the tibial growth plate damage with enhanced ECM degradation. Also, Mn deficiency inhibited the Nrf2 signaling pathway and enhanced the protein levels of NLRP3, active caspase-1, and active IL-1β in tibial growth plate, indicating the oxidative stress and inflammatory response in Mn deficiency-induced TD. Additionally, upregulated expression levels of MMPs (MMP1, 9, and 13) were observed in tibial growth plate of Mn deficiency group. In summary, these findings suggest that Mn deficiency-enhanced ECM degradation is involved in avian TD, which may be correlated with oxidative stress, inflammatory response, and upregulation of MMPs.
Collapse
Affiliation(s)
- Peng-Fei Dong
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Cong Jin
- Yishui Animal Disease Control Center, 690 Chang'an Street, Shandong Province, 276400, Lin'yi City, China
| | - Cai-Yu Lian
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
| |
Collapse
|
11
|
Liu Y, Yi J, Li Y, Hussain R, Zhu S, Li Y, Ouyang Z, Mehmood K, Hu L, Pan J, Tang Z, Li Y, Zhang H. Residue of thiram in food, suppresses immune system stress signals and disturbs sphingolipid metabolism in chickens. Vet Immunol Immunopathol 2022; 247:110415. [PMID: 35344810 DOI: 10.1016/j.vetimm.2022.110415] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 12/30/2021] [Revised: 02/28/2022] [Accepted: 03/20/2022] [Indexed: 10/18/2022]
Abstract
Thiram, a well-known sulfur containing organic compound is frequently and extensively used in agriculture because of high biological activity to control different pests. In certain cases, due to long persistence in the environment pesticides and other environmental contaminants induce undesirable toxic impacts to public health and environment. To ascertain the potential mechanisms of toxicity of thiram on different immune organs of broilers, a total of 100 one-day-old chicks were obtained and randomly divided into two groups including thiram group (50 mg/kg) and untreated control group. Thymus and spleen tissues were collected at the age of 14 days from the experimental birds. At necropsy level, thymus was congested, enlarged and hyperemic while spleen had no obvious lesions. The results on mechanisms (apoptosis and autophagy) of immunotoxicity showed significantly increased expression of bax, caspase3, cytc, ATG5, beclin1 and p62 in spleen of treated mice. Results indicated significantly decreased expression of m-TOR and bcl2 to activate apoptosis and autophagy. The expressions of bax, p53 and m-TOR were up-regulated in the thymus while the expressions of ATG5 and Beclin1 were down-regulated to mediate cell apoptosis and inhibit autophagy. The results on different metabolome investigation showed that the sphingolipid metabolism in the thymus of chicks exposed to thiram was disrupted resulting in up-regulation of metabolites related to cell membrane components such as SM, galactosylceramide and lactosylceramide. The results of our experimental research suggest that thiram can interfere with the sphingolipid metabolism in thymus and angiogenesis, inhibit the proliferation of vascular endothelial cells to induce potential toxic effects in chicken.
Collapse
Affiliation(s)
- Yingwei Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jiangnan Yi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yuanliang Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Riaz Hussain
- Department of Pathology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Shanshan Zhu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yangwei Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhuanxu Ouyang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Khalid Mehmood
- Department of Pathology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jiaqing 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
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
12
|
Fecher-Trost C, Wolske K, Wesely C, Löhr H, Klawitter DS, Weissgerber P, Gradhand E, Burren CP, Mason AE, Winter M, Wissenbach U. Mutations That Affect the Surface Expression of TRPV6 Are Associated with the Upregulation of Serine Proteases in the Placenta of an Infant. Int J Mol Sci 2021; 22:12694. [PMID: 34884497 PMCID: PMC8657554 DOI: 10.3390/ijms222312694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 02/07/2023] Open
Abstract
Recently, we reported a case of an infant with neonatal severe under-mineralizing skeletal dysplasia caused by mutations within both alleles of the TRPV6 gene. One mutation results in an in frame stop codon (R510stop) that leads to a truncated, nonfunctional TRPV6 channel, and the second in a point mutation (G660R) that, surprisingly, does not affect the Ca2+ permeability of TRPV6. We mimicked the subunit composition of the unaffected heterozygous parent and child by coexpressing the TRPV6 G660R and R510stop mutants and combinations with wild type TRPV6. We show that both the G660R and R510stop mutant subunits are expressed and result in decreased calcium uptake, which is the result of the reduced abundancy of functional TRPV6 channels within the plasma membrane. We compared the proteomic profiles of a healthy placenta with that of the diseased infant and detected, exclusively in the latter two proteases, HTRA1 and cathepsin G. Our results implicate that the combination of the two mutant TRPV6 subunits, which are expressed in the placenta of the diseased child, is responsible for the decreased calcium uptake, which could explain the skeletal dysplasia. In addition, placental calcium deficiency also appears to be associated with an increase in the expression of proteases.
Collapse
Affiliation(s)
- Claudia Fecher-Trost
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| | - Karin Wolske
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| | - Christine Wesely
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| | - Heidi Löhr
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| | - Daniel S. Klawitter
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| | - Petra Weissgerber
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
- Transgenic Technologies, Center for Molecular Signaling (PZMS), Saarland University, Building 61.4, 66421 Homburg, Germany
| | - Elise Gradhand
- Kinder- und Perinatalpathologie Dr. Senckenberg, Institut für Pathologie Universitätsklinikum Frankfurt/Main Theodor-Stern-Kai 7, 60590 Frankfurt, Germany;
| | - Christine P. Burren
- Department of Translational Health Sciences, Bristol Medical School, University of Bristol, University Hospitals Bristol and Weston NHS Foundation Trust, Upper Maudlin St, Bristol BS2 8BJ, UK;
| | - Anna E. Mason
- Histopathology Department, Aneurin Bevan University Health Board, Royal Gwent Hospital, Cardiff NP20 2UB, UK;
| | - Manuel Winter
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| | - Ulrich Wissenbach
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Buildings 61.4 and 46, 66421 Homburg, Germany; (C.F.-T.); (K.W.); (C.W.); (H.L.); (D.S.K.); (P.W.); (M.W.)
| |
Collapse
|
13
|
Qiao L, Xu L, Yu L, Wynn J, Hernan R, Zhou X, Farkouh-Karoleski C, Krishnan US, Khlevner J, De A, Zygmunt A, Crombleholme T, Lim FY, Needelman H, Cusick RA, Mychaliska GB, Warner BW, Wagner AJ, Danko ME, Chung D, Potoka D, Kosiński P, McCulley DJ, Elfiky M, Azarow K, Fialkowski E, Schindel D, Soffer SZ, Lyon JB, Zalieckas JM, Vardarajan BN, Aspelund G, Duron VP, High FA, Sun X, Donahoe PK, Shen Y, Chung WK. Rare and de novo variants in 827 congenital diaphragmatic hernia probands implicate LONP1 as candidate risk gene. Am J Hum Genet 2021; 108:1964-1980. [PMID: 34547244 PMCID: PMC8546037 DOI: 10.1016/j.ajhg.2021.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 05/14/2021] [Accepted: 08/25/2021] [Indexed: 12/21/2022] Open
Abstract
Congenital diaphragmatic hernia (CDH) is a severe congenital anomaly that is often accompanied by other anomalies. Although the role of genetics in the pathogenesis of CDH has been established, only a small number of disease-associated genes have been identified. To further investigate the genetics of CDH, we analyzed de novo coding variants in 827 proband-parent trios and confirmed an overall significant enrichment of damaging de novo variants, especially in constrained genes. We identified LONP1 (lon peptidase 1, mitochondrial) and ALYREF (Aly/REF export factor) as candidate CDH-associated genes on the basis of de novo variants at a false discovery rate below 0.05. We also performed ultra-rare variant association analyses in 748 affected individuals and 11,220 ancestry-matched population control individuals and identified LONP1 as a risk gene contributing to CDH through both de novo and ultra-rare inherited largely heterozygous variants clustered in the core of the domains and segregating with CDH in affected familial individuals. Approximately 3% of our CDH cohort who are heterozygous with ultra-rare predicted damaging variants in LONP1 have a range of clinical phenotypes, including other anomalies in some individuals and higher mortality and requirement for extracorporeal membrane oxygenation. Mice with lung epithelium-specific deletion of Lonp1 die immediately after birth, most likely because of the observed severe reduction of lung growth, a known contributor to the high mortality in humans. Our findings of both de novo and inherited rare variants in the same gene may have implications in the design and analysis for other genetic studies of congenital anomalies.
Collapse
Affiliation(s)
- Lu Qiao
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Le Xu
- Department of Pediatrics, University of California, San Diego Medical School, San Diego, CA 92093, USA
| | - Lan Yu
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Julia Wynn
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Rebecca Hernan
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Xueya Zhou
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | | | - Usha S Krishnan
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Julie Khlevner
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Aliva De
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Annette Zygmunt
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | | | - Foong-Yen Lim
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Howard Needelman
- University of Nebraska Medical Center College of Medicine, Omaha, NE 68114, USA
| | - Robert A Cusick
- University of Nebraska Medical Center College of Medicine, Omaha, NE 68114, USA
| | | | - Brad W Warner
- Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Amy J Wagner
- Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Melissa E Danko
- Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, TN 37232, USA
| | - Dai Chung
- Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, TN 37232, USA
| | | | | | - David J McCulley
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 52726, USA
| | | | - Kenneth Azarow
- Oregon Health & Science University, Portland, OR 97239, USA
| | | | | | | | - Jane B Lyon
- Department of Radiology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Jill M Zalieckas
- Department of Surgery, Boston Children's Hospital, Boston, MA 02115, USA
| | - Badri N Vardarajan
- Department of Neurology, Taub Institute for Research on Alzheimer Disease and the Aging Brain and the Gertrude H. Sergievsky Center, Columbia University, New York, NY 10032, USA
| | - Gudrun Aspelund
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Vincent P Duron
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Frances A High
- Department of Surgery, Boston Children's Hospital, Boston, MA 02115, USA; Pediatric Surgical Research Laboratories, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Pediatrics, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Xin Sun
- Department of Pediatrics, University of California, San Diego Medical School, San Diego, CA 92093, USA
| | - Patricia K Donahoe
- Pediatric Surgical Research Laboratories, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Surgery, Harvard Medical School, Boston, MA 02115, USA
| | - Yufeng Shen
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY 10032, USA; JP Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY 10032, USA.
| | - Wendy K Chung
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA.
| |
Collapse
|
14
|
Rochoux Q, Sopkova-de Oliveira Santos J, Marcelli C, Rovelet-Lecrux A, Chevallier V, Dutheil JJ, Leclercq S, Boumédiene K, Baugé C, Aury-Landas J. Description of Joint Alterations Observed in a Family Carrying p.Asn453Ser COMP Variant: Clinical Phenotypes, In Silico Prediction of Functional Impact on COMP Protein and Stability, and Review of the Literature. Biomolecules 2021; 11:biom11101460. [PMID: 34680093 PMCID: PMC8533395 DOI: 10.3390/biom11101460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/20/2021] [Accepted: 09/30/2021] [Indexed: 12/26/2022] Open
Abstract
The role of genetics in the development of osteoarthritis is well established but the molecular bases are not fully understood. Here, we describe a family carrying a germline mutation in COMP (Cartilage Oligomeric Matrix Protein) associated with three distinct phenotypes. The index case was enrolled for a familial form of idiopathic early-onset osteoarthritis. By screening potential causal genes for osteoarthritis, we identified a heterozygous missense mutation of COMP (c.1358C>T, p.Asn453Ser), absent from genome databases, located on a highly conserved residue and predicted to be deleterious. Molecular dynamics simulation suggests that the mutation destabilizes the overall COMP protein structure and consequently the calcium releases from neighboring calcium binding sites. This mutation was once reported in the literature as causal for severe multiple epiphyseal dysplasia (MED). However, no sign of dysplasia was present in the index case. The mutation was also identified in one of her brothers diagnosed with MED and secondary osteoarthritis, and in her sister affected by an atypical syndrome including peripheral inflammatory arthritis of unknown cause, without osteoarthritis nor dysplasia. This article suggests that this mutation of COMP is not only causal for idiopathic early-onset osteoarthritis or severe MED, but can also be associated to a broad phenotypic variability with always joint alterations.
Collapse
Affiliation(s)
- Quitterie Rochoux
- EA7451 BioConnecT, Normandie Université, UNICAEN, 14032 Caen, France; (Q.R.); (S.L.); (K.B.); (C.B.)
- Service de Rhumatologie, CHU de Caen, 14000 Caen, France;
| | | | | | - Anne Rovelet-Lecrux
- Department of Genetics and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, Normandie Université, UNIROUEN, Inserm U1245 and Rouen University Hospital, 76000 Rouen, France;
| | - Virginie Chevallier
- Délégation de la Recherche Clinique et de l’Innovation, CHU de Caen, 14000 Caen, France; (V.C.); (J.-J.D.)
| | - Jean-Jacques Dutheil
- Délégation de la Recherche Clinique et de l’Innovation, CHU de Caen, 14000 Caen, France; (V.C.); (J.-J.D.)
| | - Sylvain Leclercq
- EA7451 BioConnecT, Normandie Université, UNICAEN, 14032 Caen, France; (Q.R.); (S.L.); (K.B.); (C.B.)
- Service de Chirurgie Orthopédique, Clinique Saint-Martin, 14000 Caen, France
| | - Karim Boumédiene
- EA7451 BioConnecT, Normandie Université, UNICAEN, 14032 Caen, France; (Q.R.); (S.L.); (K.B.); (C.B.)
| | - Catherine Baugé
- EA7451 BioConnecT, Normandie Université, UNICAEN, 14032 Caen, France; (Q.R.); (S.L.); (K.B.); (C.B.)
| | - Juliette Aury-Landas
- EA7451 BioConnecT, Normandie Université, UNICAEN, 14032 Caen, France; (Q.R.); (S.L.); (K.B.); (C.B.)
- Correspondence: ; Tel.: +33-(0)2-31-56-82-18
| |
Collapse
|
15
|
De Palma A, Agresta AM, Viglio S, Rossi R, D’Amato M, Di Silvestre D, Mauri P, Iadarola P. A Shotgun Proteomic Platform for a Global Mapping of Lymphoblastoid Cells to Gain Insight into Nasu-Hakola Disease. Int J Mol Sci 2021; 22:9959. [PMID: 34576123 PMCID: PMC8472724 DOI: 10.3390/ijms22189959] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/13/2021] [Accepted: 08/19/2021] [Indexed: 11/16/2022] Open
Abstract
Nasu-Hakola Disease (NHD) is a recessively inherited systemic leukodystrophy disorder characterized by a combination of frontotemporal presenile dementia and lytic bone lesions. NHD is known to be genetically related to a structural defect of TREM2 and DAP12, two genes that encode for different subunits of the membrane receptor signaling complex expressed by microglia and osteoclast cells. Because of its rarity, molecular or proteomic studies on this disorder are absent or scarce, only case reports based on neuropsychological and genetic tests being reported. In light of this, the aim of this paper is to provide evidence on the potential of a label-free proteomic platform based on the Multidimensional Protein Identification Technology (MudPIT), combined with in-house software and on-line bioinformatics tools, to characterize the protein expression trends and the most involved pathways in NHD. The application of this approach on the Lymphoblastoid cells from a family composed of individuals affected by NHD, healthy carriers and control subjects allowed for the identification of about 3000 distinct proteins within the three analyzed groups, among which proteins anomalous to each category were identified. Of note, several differentially expressed proteins were associated with neurodegenerative processes. Moreover, the protein networks highlighted some molecular pathways that may be involved in the onset or progression of this rare frontotemporal disorder. Therefore, this fully automated MudPIT platform which allowed, for the first time, the generation of the whole protein profile of Lymphoblastoid cells from Nasu-Hakola subjects, could be a valid approach for the investigation of similar neurodegenerative diseases.
Collapse
Affiliation(s)
- Antonella De Palma
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20054 Milan, Italy; (A.M.A.); (R.R.); (D.D.S.)
| | - Anna Maria Agresta
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20054 Milan, Italy; (A.M.A.); (R.R.); (D.D.S.)
| | - Simona Viglio
- Biochemistry Unit, Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy; (S.V.); (M.D.)
| | - Rossana Rossi
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20054 Milan, Italy; (A.M.A.); (R.R.); (D.D.S.)
| | - Maura D’Amato
- Biochemistry Unit, Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy; (S.V.); (M.D.)
| | - Dario Di Silvestre
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20054 Milan, Italy; (A.M.A.); (R.R.); (D.D.S.)
| | - Pierluigi Mauri
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20054 Milan, Italy; (A.M.A.); (R.R.); (D.D.S.)
| | - Paolo Iadarola
- Biochemistry Unit, Department of Biology and Biotechnologies “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy;
| |
Collapse
|
16
|
Akalın A, Taskiran EZ, Şimşek-Kiper PÖ, Utine E, Alanay Y, Özçelik U, Boduroğlu K. Spondyloepimetaphyseal dysplasia EXTL3-deficient type: Long-term follow-up and review of the literature. Am J Med Genet A 2021; 185:3104-3110. [PMID: 34089299 DOI: 10.1002/ajmg.a.62378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/08/2021] [Revised: 04/09/2021] [Accepted: 05/18/2021] [Indexed: 11/07/2022]
Abstract
Spondyloepimetaphyseal dysplasia (SEMD) is a group of genetic skeletal disorders characterized by disproportionate short stature, and varying degrees of vertebral, epiphyseal, and metaphyseal involvement of the skeleton. According to the Nosology and classification of genetic skeletal disorders 2019 revision, more than 20 types of SEMD have been identified, and SEMD with immune deficiency, EXTL3 type is one of the newcomers. Affected individuals display variable skeletal abnormalities and neurodevelopmental findings. Liver and kidney cysts have also been reported frequently. Patients may exhibit varying degrees of immune deficiency as well. To date, only 14 patients from 9 unrelated families with SEMD with immune deficiency, EXTL3 type have been reported in the literature. We report a new patient who is currently 15 years old in whom cystic liver lesions were detected in the prenatal period. Disproportionate short stature, mild developmental delay and a T- NK+ B+ immunological profile were detected in the postnatal follow-up. Exome sequence analysis revealed a previously reported homozygous missense variant in exon 3 c.953C > T; p.(Pro318Leu) in EXTL3.
Collapse
Affiliation(s)
- Akçahan Akalın
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Z Taskiran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Eda Utine
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Yasemin Alanay
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
- Department of Pediatric Genetics, Department of Pediatrics, Acıbadem University Faculty of Medicine, Istanbul, Turkey
| | - Uğur Özçelik
- Department of Pediatric Chest Diseases, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| |
Collapse
|
17
|
McDonald MM, Khoo WH, Ng PY, Xiao Y, Zamerli J, Thatcher P, Kyaw W, Pathmanandavel K, Grootveld AK, Moran I, Butt D, Nguyen A, Corr A, Warren S, Biro M, Butterfield NC, Guilfoyle SE, Komla-Ebri D, Dack MRG, Dewhurst HF, Logan JG, Li Y, Mohanty ST, Byrne N, Terry RL, Simic MK, Chai R, Quinn JMW, Youlten SE, Pettitt JA, Abi-Hanna D, Jain R, Weninger W, Lundberg M, Sun S, Ebetino FH, Timpson P, Lee WM, Baldock PA, Rogers MJ, Brink R, Williams GR, Bassett JHD, Kemp JP, Pavlos NJ, Croucher PI, Phan TG. Osteoclasts recycle via osteomorphs during RANKL-stimulated bone resorption. Cell 2021; 184:1330-1347.e13. [PMID: 33636130 PMCID: PMC7938889 DOI: 10.1016/j.cell.2021.02.002] [Citation(s) in RCA: 153] [Impact Index Per Article: 51.0] [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: 04/16/2019] [Revised: 11/20/2020] [Accepted: 02/01/2021] [Indexed: 02/02/2023]
Abstract
Osteoclasts are large multinucleated bone-resorbing cells formed by the fusion of monocyte/macrophage-derived precursors that are thought to undergo apoptosis once resorption is complete. Here, by intravital imaging, we reveal that RANKL-stimulated osteoclasts have an alternative cell fate in which they fission into daughter cells called osteomorphs. Inhibiting RANKL blocked this cellular recycling and resulted in osteomorph accumulation. Single-cell RNA sequencing showed that osteomorphs are transcriptionally distinct from osteoclasts and macrophages and express a number of non-canonical osteoclast genes that are associated with structural and functional bone phenotypes when deleted in mice. Furthermore, genetic variation in human orthologs of osteomorph genes causes monogenic skeletal disorders and associates with bone mineral density, a polygenetic skeletal trait. Thus, osteoclasts recycle via osteomorphs, a cell type involved in the regulation of bone resorption that may be targeted for the treatment of skeletal diseases.
Collapse
Affiliation(s)
- Michelle M McDonald
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Weng Hua Khoo
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Pei Ying Ng
- Bone Biology & Disease Laboratory, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Ya Xiao
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Jad Zamerli
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Peter Thatcher
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Wunna Kyaw
- Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | | | - Abigail K Grootveld
- Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Imogen Moran
- Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Danyal Butt
- Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Akira Nguyen
- Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Alexander Corr
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Sean Warren
- Cancer, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Maté Biro
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Natalie C Butterfield
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - Siobhan E Guilfoyle
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - Davide Komla-Ebri
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - Michael R G Dack
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - Hannah F Dewhurst
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - John G Logan
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - Yongxiao Li
- John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Sindhu T Mohanty
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Niall Byrne
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Rachael L Terry
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Marija K Simic
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Ryan Chai
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Julian M W Quinn
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Scott E Youlten
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Jessica A Pettitt
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - David Abi-Hanna
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Rohit Jain
- Immune Imaging Program, Centenary Institute, Sydney, NSW, Australia; Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Wolfgang Weninger
- Immune Imaging Program, Centenary Institute, Sydney, NSW, Australia; Sydney Medical School, University of Sydney, Sydney, NSW, Australia; Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Mischa Lundberg
- The University of Queensland Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia; Transformational Bioinformatics, Commonwealth Scientific and Industrial Research Organisation, Sydney, NSW, Australia
| | | | | | - Paul Timpson
- Cancer, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Woei Ming Lee
- John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Paul A Baldock
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Michael J Rogers
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia
| | - Robert Brink
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia; Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Graham R Williams
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - J H Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion & Reproduction, Imperial College London, London, UK
| | - John P Kemp
- The University of Queensland Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia; Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Nathan J Pavlos
- Bone Biology & Disease Laboratory, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Peter I Croucher
- Healthy Ageing Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia; St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia.
| | - Tri Giang Phan
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, NSW, Australia; Immunology Theme, Garvan Institute of Medical Research, Sydney, NSW, Australia.
| |
Collapse
|
18
|
Abad-Morales V, Wert A, Ruiz Gómez MÁ, Navarro R, Pomares E. New Insights on the Genetic Basis Underlying SHILCA Syndrome: Characterization of the NMNAT1 Pathological Alterations Due to Compound Heterozygous Mutations and Identification of a Novel Alternative Isoform. Int J Mol Sci 2021; 22:2262. [PMID: 33668384 PMCID: PMC7956282 DOI: 10.3390/ijms22052262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/18/2021] [Accepted: 02/21/2021] [Indexed: 01/26/2023] Open
Abstract
This study aims to genetically characterize a two-year-old patient suffering from multiple systemic abnormalities, including skeletal, nervous and developmental involvements and Leber congenital amaurosis (LCA). Genetic screening by next-generation sequencing identified two heterozygous pathogenic variants in nicotinamide mononucleotide adenylyltransferase 1 (NMNAT1) as the molecular cause of the disease: c.439+5G>T and c.299+526_*968dup.This splice variant has never been reported to date, whereas pathogenic duplication has recently been associated with cases displaying an autosomal recessive disorder that includes a severe form of spondylo-epiphyseal dysplasia, sensorineural hearing loss, intellectual disability and LCA (SHILCA), as well as some brain anomalies. Our patient presented clinical manifestations which correlated strongly with this reported syndrome. To further study the possible transcriptional alterations resulting from these mutations, mRNA expression assays were performed in the patient and her father. The obtained results detected aberrant alternative transcripts and unbalanced levels of expression, consistent with severe systemic involvement. Moreover, these analyses also detected a novel NMNAT1 isoform, which is variably expressed in healthy human tissues. Altogether, these findings represent new evidence of the correlation of NMNAT1 and SHILCA syndrome, and provide additional insights into the healthy and pathogenic expression of this gene.
Collapse
Affiliation(s)
- Víctor Abad-Morales
- Fundació de Recerca de l’Institut de Microcirurgia Ocular, 08035 Barcelona, Spain; (A.W.); (R.N.)
- Department of Genetics, Institut de Microcirurgia Ocular (IMO), 08035 Barcelona, Spain
| | - Ana Wert
- Fundació de Recerca de l’Institut de Microcirurgia Ocular, 08035 Barcelona, Spain; (A.W.); (R.N.)
- Department of Pediatric Ophthalmology, Strabismus and Neurophthalmology, Institut de Microcirurgia Ocular (IMO), 08035 Barcelona, Spain
| | - María Ángeles Ruiz Gómez
- Pediatric Metabolic Unit and Neuropediatrics, Hospital Universitari Son Espases, 07120 Palma de Mallorca, Spain;
| | - Rafael Navarro
- Fundació de Recerca de l’Institut de Microcirurgia Ocular, 08035 Barcelona, Spain; (A.W.); (R.N.)
- Department of Retina, Institut de Microcirurgia Ocular (IMO), 08035 Barcelona, Spain
| | - Esther Pomares
- Fundació de Recerca de l’Institut de Microcirurgia Ocular, 08035 Barcelona, Spain; (A.W.); (R.N.)
- Department of Genetics, Institut de Microcirurgia Ocular (IMO), 08035 Barcelona, Spain
| |
Collapse
|
19
|
de Vos IJHM, Wong ASW, Taslim J, Ong SLM, Syder NC, Goggi JL, Carney TJ, van Steensel MAM. The novel zebrafish model pretzel demonstrates a central role for SH3PXD2B in defective collagen remodelling and fibrosis in Frank-Ter Haar syndrome. Biol Open 2020; 9:bio054270. [PMID: 33234702 PMCID: PMC7790187 DOI: 10.1242/bio.054270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/05/2020] [Indexed: 11/20/2022] Open
Abstract
Frank-Ter Haar syndrome (FTHS, MIM #249420) is a rare skeletal dysplasia within the defective collagen remodelling spectrum (DECORS), which is characterised by craniofacial abnormalities, skeletal malformations and fibrotic soft tissues changes including dermal fibrosis and joint contractures. FTHS is caused by homozygous or compound heterozygous loss-of-function mutation or deletion of SH3PXD2B (Src homology 3 and Phox homology domain-containing protein 2B; MIM #613293). SH3PXD2B encodes an adaptor protein with the same name, which is required for full functionality of podosomes, specialised membrane structures involved in extracellular matrix (ECM) remodelling. The pathogenesis of DECORS is still incompletely understood and, as a result, therapeutic options are limited. We previously generated an mmp14a/b knockout zebrafish and demonstrated that it primarily mimics the DECORS-related bone abnormalities. Here, we present a novel sh3pxd2b mutant zebrafish, pretzel, which primarily reflects the DECORS-related dermal fibrosis and contractures. In addition to relatively mild skeletal abnormalities, pretzel mutants develop dermal and musculoskeletal fibrosis, contraction of which seems to underlie grotesque deformations that include kyphoscoliosis, abdominal constriction and lateral folding. The discrepancy in phenotypes between mmp14a/b and sh3pxd2b mutants suggests that in fish, as opposed to humans, there are differences in spatiotemporal dependence of ECM remodelling on either sh3pxd2b or mmp14a/b The pretzel model presented here can be used to further delineate the underlying mechanism of the fibrosis observed in DECORS, as well as screening and subsequent development of novel drugs targeting DECORS-related fibrosis.This paper has an associated First Person interview with the first author of the article.
Collapse
Affiliation(s)
- Ivo J H M de Vos
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 308232, Singapore
| | - Arnette Shi Wei Wong
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 308232, Singapore
| | - Jason Taslim
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 308232, Singapore
| | - Sheena Li Ming Ong
- Institute of Medical Biology (IMB), Agency for Science, Technology and Research (A*STAR), 138648, Singapore
| | - Nicole C Syder
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 308232, Singapore
| | - Julian L Goggi
- Singapore Bioimaging Consortium (SBIC), Agency for Science, Technology and Research (A*STAR), 138667, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), 117593, Singapore
| | - Thomas J Carney
- Lee Kong Chian School of Medicine, Nanyang Technological University (NTU), 636921, Singapore
| | - Maurice A M van Steensel
- Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 308232, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University (NTU), 636921, Singapore
| |
Collapse
|
20
|
Tavasoli M, Lahire S, Reid T, Brodovsky M, McMaster CR. Genetic diseases of the Kennedy pathways for membrane synthesis. J Biol Chem 2020; 295:17877-17886. [PMID: 33454021 PMCID: PMC7762932 DOI: 10.1074/jbc.rev120.013529] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [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: 08/15/2020] [Revised: 10/20/2020] [Indexed: 11/06/2022] Open
Abstract
The two branches of the Kennedy pathways (CDP-choline and CDP-ethanolamine) are the predominant pathways responsible for the synthesis of the most abundant phospholipids, phosphatidylcholine and phosphatidylethanolamine, respectively, in mammalian membranes. Recently, hereditary diseases associated with single gene mutations in the Kennedy pathways have been identified. Interestingly, genetic diseases within the same pathway vary greatly, ranging from muscular dystrophy to spastic paraplegia to a childhood blinding disorder to bone deformations. Indeed, different point mutations in the same gene (PCYT1; CCTα) result in at least three distinct diseases. In this review, we will summarize and review the genetic diseases associated with mutations in genes of the Kennedy pathway for phospholipid synthesis. These single-gene disorders provide insight, indeed direct genotype-phenotype relationships, into the biological functions of specific enzymes of the Kennedy pathway. We discuss potential mechanisms of how mutations within the same pathway can cause disparate disease.
Collapse
Affiliation(s)
- Mahtab Tavasoli
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Sarah Lahire
- University of Reims Champagne-Ardenne, Reims, France
| | - Taryn Reid
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Maren Brodovsky
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
| | | |
Collapse
|
21
|
Al-Sannaa NA, Hoornaert KP, Van Laer L, Al-Abdulwahed HY, Mortier G. Spondylo-epiphyseal dysplasia in two sibs due to a homozygous splicing variant in COL2A1. Eur J Med Genet 2020; 63:104059. [PMID: 32896647 DOI: 10.1016/j.ejmg.2020.104059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 11/18/2022]
Abstract
Type 2 collagenopathies encompass a large group of chondrodysplasias ranging from the perinatally lethal achondrogenesis type 2 and hypochondrogenesis at the severe end of the spectrum to early-onset osteoarthritis with normal stature at the milder end of the spectrum. With the exception of a few reported cases, these dysplasias are predominantly caused by heterozygous variants in the COL2A1 gene and hence show an autosomal dominant inheritance pattern. Here we report on two siblings, originating from a consanguineous family, who presented with disproportionate short stature, ocular abnormalities, cleft palate and hearing impairment. The radiographic study showed signs of a spondyloepiphyseal dysplasia, compatible with a type 2 collagen disorder. Indeed, both siblings were homozygous for a c.3111+2T > Cp.(Glu1033Lysfs*5) splice site variant in the COL2A1 gene. cDNA analysis performed on skin fibroblasts from the affected sibs revealed the co-occurrence of the wild-type transcript and an aberrant splice product, the latter believed to be degraded by nonsense-mediated mRNA decay. The parents who were heterozygous for this variant were phenotypically normal. This paper confirms that type 2 collagenopathies can show an autosomal recessive inheritance.
Collapse
Affiliation(s)
- N A Al-Sannaa
- Johns Hopkins Aramco Healthcare, Pediatric Services Division, Saudi Arabia.
| | | | - L Van Laer
- University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - H Y Al-Abdulwahed
- Johns Hopkins Aramco Healthcare, Pediatric Services Division, Saudi Arabia
| | - G Mortier
- University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| |
Collapse
|
22
|
Velasco HM, Ullah E, Martin AM, Hufnagel RB, Prada CE. Novel progressive acrodysostosis-like skeletal dysplasia, cerebellar atrophy, and ichthyosis. Am J Med Genet A 2020; 182:2214-2221. [PMID: 32783359 DOI: 10.1002/ajmg.a.61782] [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: 02/24/2020] [Revised: 05/09/2020] [Accepted: 06/22/2020] [Indexed: 11/07/2022]
Abstract
Acrodysostosis refers to a rare heterogeneous group of bone dysplasias that share skeletal features, hormone resistance, and intellectual disability. Two genes have been associated with acrodysostosis with or without hormone resistance (PRKAR1A and PDE4D). Severe intellectual disability has been reported with acrodysostosis but brain malformations and ichthyosis have not been reported in these syndromes. Here we describe a female patient with acrodysostosis, intellectual disability, cerebellar hypoplasia, and lamellar ichthyosis. The patient has an evolving distinctive facial phenotype and childhood onset ataxia. X-rays showed generalized osteopenia, shortening of middle and distal phalanges, and abnormal distal epiphysis of the ulna and radius. Brain magnetic resonance imaging showed cerebellar atrophy without other brainstem abnormalities. Genetic workup included nondiagnostic chromosomal microarray and skeletal dysplasia molecular panels. These clinical findings are different from any recognized form of acrodysostosis syndrome. Whole exome sequencing did not identify rare or predicted pathogenic variants in genes associated with known acrodysostosis, lamellar ichthyosis, and other overlapping disorders. A broader search for rare alleles absent in healthy population databases and controls identified two heterozygous truncating alleles in FBNL7 and PPM1M genes, and one missense allele in the NPEPPS gene. Identification of additional patients is required to delineate the mechanism of this unique disorder.
Collapse
Affiliation(s)
- Harvy M Velasco
- Master of Science in Human Genetics Program, Department of Morphology, Universidad Nacional de Colombia, Cundinamarca, Colombia
| | - Ehsan Ullah
- Ophthalmic Genetics and Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Angela M Martin
- Master of Science in Human Genetics Program, Department of Morphology, Universidad Nacional de Colombia, Cundinamarca, Colombia
| | - Robert B Hufnagel
- Ophthalmic Genetics and Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Carlos E Prada
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Fundación Cardiovascular de Colombia, Bucaramanga, Colombia
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| |
Collapse
|
23
|
Rossi-Espagnet MC, Dentici ML, Pasquini L, Carducci C, Lucignani M, Longo D, Agolini E, Novelli A, Gonfiantini MV, Digilio MC, Napolitano A, Bartuli A. Microcephalic osteodysplastic primordial dwarfism type II and pachygyria: Morphometric analysis in a 2-year-old girl. Am J Med Genet A 2020; 182:2372-2376. [PMID: 32744776 DOI: 10.1002/ajmg.a.61771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/08/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 12/22/2022]
Abstract
Microcephalic osteodysplastic primordial dwarfism (MOPD) type II is a rare disorder characterized by skeletal dysplasia, severe proportionate short stature, insulin resistance and cerebrovascular abnormalities including cerebral aneurysms and moyamoya disease. MOPD type II is caused by mutations in the pericentrin (PCNT) gene, which encodes a protein involved in centrosomes function. We report a 2 year old girl affected by MOPD type II caused by two compound heterozygous loss-of-function variants in PCNT gene, of which one is a novel variant (c.5304delT; p.Gly1769AlafsTer34). The patient presented atypical brain magnetic resonance imaging (MRI) findings consistent with pachygyria. This was confirmed by morphometric analysis of cortical thickness (CT) and gyrification index by comparing MRI data of the patient with a group of eight age-matched healthy controls. The statistical analysis revealed a significant and diffuse increase of CT with an anterior-predominant pattern and diffuse reduced gyrification (p < .05). These findings provide new evidences to the emergent concept that malformations of cortical development are complex disorders and that new genetic findings contribute to the fading of classification borders.
Collapse
Affiliation(s)
- Maria C Rossi-Espagnet
- Neuroradiology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
- Nesmos Department, Sapienza University, Rome, Italy
| | - Maria L Dentici
- Rare Diseases and Medical Genetics Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Luca Pasquini
- Neuroradiology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
- Nesmos Department, Sapienza University, Rome, Italy
| | - Chiara Carducci
- Neuroradiology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Martina Lucignani
- Medical Physics Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Daniela Longo
- Neuroradiology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Emanuele Agolini
- Laboratory of Medical Genetics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Antonio Novelli
- Laboratory of Medical Genetics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Maria C Digilio
- Medical Physics Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Antonio Napolitano
- Medical Physics Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Andrea Bartuli
- Medical Physics Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| |
Collapse
|
24
|
Gregersen PA, McKay V, Walsh M, Brown E, McGillivray G, Savarirayan R. A new case of Greenberg dysplasia and literature review suggest that Greenberg dysplasia, dappled diaphyseal dysplasia, and Astley-Kendall dysplasia are allelic disorders. Mol Genet Genomic Med 2020; 8:e1173. [PMID: 32304187 PMCID: PMC7284023 DOI: 10.1002/mgg3.1173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 01/30/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Greenberg dysplasia is a rare, autosomal recessive, prenatal lethal bone dysplasia caused by biallelic pathogenic variants in the lamin B receptor (LBR) gene. Pathogenic variants in LBR are also associated with Pelger-Huët anomaly, an autosomal dominant benign abnormality of the nuclear shape and chromatin organization of blood granulocytes, and Pelger-Huët anomaly with variable skeletal anomalies, a mild, regressing to moderate-severe autosomal recessive condition. Conditions with abnormal sterol metabolism and different genetic basis have clinical and radiographic features similar to Greenberg dysplasia, for example X-linked dominant chondrodysplasia punctata, Conradi-Hünermann type, and CHILD syndrome, and other conditions with unknown genetic etiology display very similar features, for example, dappled diaphyseal dysplasia and Astley-Kendall dysplasia. METHODS We present a fetus with typical clinical and radiographic features of Greenberg dysplasia, and review the literature. RESULTS Genetic testing confirmed the diagnosis Greenberg dysplasia: homozygosity for a pathogenic variant in LBR. CONCLUSION Comparing the clinical and radiographic phenotypes of Greenberg dysplasia, dappled diaphyseal dysplasia, and Astley-Kendall dysplasia, we suggest that these are allelic disorders.
Collapse
Affiliation(s)
- Pernille A. Gregersen
- Department of Clinical GeneticsAarhus University HospitalAarhusDenmark
- Pediatrics and Adolescent MedicineCentre for Rare DiseasesAarhus University HospitalAarhusDenmark
- Victorian Clinical Genetics ServicesThe Royal Children’s HospitalMelbourneVICAustralia
| | - Victoria McKay
- Department of Clinical GeneticsMerseyside and Cheshire Regional Clinical Genetics ServiceLiverpool Women’s NHS Foundation TrustLiverpoolUK
| | - Maie Walsh
- Victorian Clinical Genetics ServicesThe Royal Children’s HospitalMelbourneVICAustralia
- Victorian Clinical Genetics ServicesRoyal Melbourne HospitalMelbourneVICAustralia
| | - Erica Brown
- Victorian Clinical Genetics ServicesRoyal Women’s HospitalMelbourneVICAustralia
| | - George McGillivray
- Victorian Clinical Genetics ServicesThe Royal Children’s HospitalMelbourneVICAustralia
- Victorian Clinical Genetics ServicesRoyal Women’s HospitalMelbourneVICAustralia
- Murdoch Children’s Research InstituteUniversity of MelbourneParkvilleVICAustralia
| | - Ravi Savarirayan
- Victorian Clinical Genetics ServicesThe Royal Children’s HospitalMelbourneVICAustralia
- Murdoch Children’s Research InstituteUniversity of MelbourneParkvilleVICAustralia
| |
Collapse
|
25
|
Kumps C, Campos-Xavier B, Hilhorst-Hofstee Y, Marcelis C, Kraenzlin M, Fleischer N, Unger S, Superti-Furga A. The Connective Tissue Disorder Associated with Recessive Variants in the SLC39A13 Zinc Transporter Gene (Spondylo-Dysplastic Ehlers-Danlos Syndrome Type 3): Insights from Four Novel Patients and Follow-Up on Two Original Cases. Genes (Basel) 2020; 11:genes11040420. [PMID: 32295219 PMCID: PMC7231014 DOI: 10.3390/genes11040420] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 01/04/2023] Open
Abstract
Recessive loss-of-function variants in SLC39A13, a putative zinc transporter gene, were first associated with a connective tissue disorder that is now called “Ehlers–Danlos syndrome, spondylodysplastic form type 3” (SCD-EDS, OMIM 612350) in 2008. Nine individuals have been described. We describe here four additional affected individuals from three consanguineous families and the follow up of two of the original cases. In our series, cardinal findings included thin and finely wrinkled skin of the hands and feet, characteristic facial features with downslanting palpebral fissures, mild hypertelorism, prominent eyes with a paucity of periorbital fat, blueish sclerae, microdontia, or oligodontia, and—in contrast to most types of Ehlers–Danlos syndrome—significant short stature of childhood onset. Mild radiographic changes were observed, among which platyspondyly is a useful diagnostic feature. Two of our patients developed severe keratoconus, and two suffered from cerebrovascular accidents in their twenties, suggesting that there may be a vascular component to this condition. All patients tested had a significantly reduced ratio of the two collagen-derived crosslink derivates, pyridinoline-to-deoxypyridinoline, in urine, suggesting that this simple test is diagnostically useful. Additionally, analysis of the facial features of affected individuals by DeepGestalt technology confirmed their specificity and may be sufficient to suggest the diagnosis directly. Given that the clinical presentation in childhood consists mainly of short stature and characteristic facial features, the differential diagnosis is not necessarily that of a connective tissue disorder and therefore, we propose that SLC39A13 is included in gene panels designed to address dysmorphism and short stature. This approach may result in more efficient diagnosis.
Collapse
Affiliation(s)
- Camille Kumps
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland; (C.K.); (B.C.-X.); (S.U.)
| | - Belinda Campos-Xavier
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland; (C.K.); (B.C.-X.); (S.U.)
| | - Yvonne Hilhorst-Hofstee
- Department of Clinical Genetics, Leiden University Medical Centre, 2333 ZA Leiden, The Netherlands;
| | - Carlo Marcelis
- Department of Human Genetics, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands;
| | - Marius Kraenzlin
- Clinic for Endocrinology, Diabetes & Metabolism, University Hospital Basel, 4031 Basel, Switzerland;
| | | | - Sheila Unger
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland; (C.K.); (B.C.-X.); (S.U.)
| | - Andrea Superti-Furga
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland; (C.K.); (B.C.-X.); (S.U.)
- Correspondence:
| |
Collapse
|
26
|
Ramesh J, Parthasarathy LK, Janckila AJ, Begum F, Murugan R, Murthy BPSS, El-Mallakh RS, Parthasarathy RN, Venugopal B. Characterisation of ACP5 missense mutations encoding tartrate-resistant acid phosphatase associated with spondyloenchondrodysplasia. PLoS One 2020; 15:e0230052. [PMID: 32214327 PMCID: PMC7098635 DOI: 10.1371/journal.pone.0230052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 02/20/2020] [Indexed: 11/21/2022] Open
Abstract
Biallelic mutations in ACP5, encoding tartrate-resistant acid phosphatase (TRACP), have recently been identified to cause the inherited immuno-osseous disorder, spondyloenchondrodysplasia (SPENCD). This study was undertaken to characterize the eight reported missense mutations in ACP5 associated with SPENCD on TRACP expression. ACP5 mutant genes were synthesized, transfected into human embryonic kidney (HEK-293) cells and stably expressing cell lines were established. TRACP expression was assessed by cytochemical and immuno-cytochemical staining with a panel of monoclonal antibodies. Analysis of wild (WT) type and eight mutant stable cell lines indicated that all mutants lacked stainable enzyme activity. All ACP5 mutant constructs were translated into intact proteins by HEK-293 cells. The mutant TRACP proteins displayed variable immune reactivity patterns, and all drastically reduced enzymatic activity, revealing that there is no gross inhibition of TRACP biosynthesis by the mutations. But they likely interfere with folding thereby impairing enzyme function. TRACP exists as two isoforms. TRACP 5a is a less active monomeric enzyme (35kD), with the intact loop peptide and TRACP 5b is proteolytically cleaved highly active enzyme encompassing two subunits (23 kD and 16 kD) held together by disulfide bonds. None of the mutant proteins were proteolytically processed into isoform 5b intracellularly, and only three mutants were secreted in significant amounts into the culture medium as intact isoform 5a-like proteins. Analysis of antibody reactivity patterns revealed that T89I and M264K mutant proteins retained some native conformation, whereas all others were in “denatured” or “unfolded” forms. Western blot analysis with intracellular and secreted TRACP proteins also revealed similar observations indicating that mutant T89I is amply secreted as inactive protein. All mutant proteins were attacked by Endo-H sensitive glycans and none could be activated by proteolytic cleavage in vitro. In conclusion, determining the structure-function relationship of the SPENCD mutations in TRACP will expand our understanding of basic mechanisms underlying immune responsiveness and its involvement in dysregulated bone metabolism.
Collapse
Affiliation(s)
- Janani Ramesh
- Department of Medical Biochemistry, Dr. ALM-PGIBMS, University of Madras, Madras, India
| | - Latha K. Parthasarathy
- Department of Psychiatry, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Anthony J. Janckila
- Department of Microbiology and Immunology, University of Louisville, School of Medicine, Louisville, KY, United States of America
| | - Farhana Begum
- Department of Medical Biochemistry, Dr. ALM-PGIBMS, University of Madras, Madras, India
| | - Ramya Murugan
- Department of Medical Biochemistry, Dr. ALM-PGIBMS, University of Madras, Madras, India
| | - Balakumar P. S. S. Murthy
- Department of Vascular and Endovascular Sciences, Tamilnadu Government Multi Super Speciality Hospital, Chennai, India
| | - Rif S. El-Mallakh
- Department of Psychiatry, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Ranga N. Parthasarathy
- Department of Medical Biochemistry, Dr. ALM-PGIBMS, University of Madras, Madras, India
- Department of Psychiatry, University of Louisville School of Medicine, Louisville, KY, United States of America
- Department of Psychiatry, Molecular Biology and Biochemistry, University of Louisville School of Medicine, Louisville, KY, United States of America
| | | |
Collapse
|
27
|
Albuz B, Çetin GO, Özhan B, Sarikepe B, Anlaş Ö, Öztürk M, Zeybek S, Sabir N, Bağci G, Semerci Gündüz CN. A novel nonsense mutation in CHST3 in a Turkish patient with spondyloepiphyseal dysplasia, Omani type. Clin Dysmorphol 2020; 29:61-64. [PMID: 31567425 DOI: 10.1097/mcd.0000000000000295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Burcu Albuz
- Department of Medical Genetics, Medical School of Pamukkale University
| | - Gökhan Ozan Çetin
- Department of Medical Genetics, Medical School of Pamukkale University
| | - Bayram Özhan
- Division of Pediatric Endocrinology, Department of Pediatrics, Medical School of Pamukkale University
| | - Bilge Sarikepe
- Department of Medical Genetics, Medical School of Pamukkale University
| | - Özlem Anlaş
- Department of Medical Genetics, Medical School of Pamukkale University
| | - Menekşe Öztürk
- Department of Medical Genetics, Medical School of Pamukkale University
| | - Selcan Zeybek
- Department of Medical Genetics, Medical School of Pamukkale University
| | - Nuran Sabir
- Department of Radiology, Medical School of Pamukkale University, Denizli, Turkey
| | - Gülseren Bağci
- Department of Medical Genetics, Medical School of Pamukkale University
| | | |
Collapse
|
28
|
Jahejo AR, Niu S, Zhang D, Ning GB, Khan A, Mangi RA, Qadir MF, Khan A, Li JH, Tian WX. Transcriptome analysis of MAPK signaling pathway and associated genes to angiogenesis in chicken erythrocytes on response to thiram-induced tibial lesions. Res Vet Sci 2019; 127:65-75. [PMID: 31678455 DOI: 10.1016/j.rvsc.2019.10.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 04/18/2019] [Revised: 08/28/2019] [Accepted: 10/21/2019] [Indexed: 01/01/2023]
Abstract
This study was planned to investigate TD (Tibial dyschondroplasia) on the potential MAPK signaling pathway and angiogenesis related genes. Forty-eight broilers were allotted into control (C) and treatment (T) groups of 2, 6 and 15 days as C1, C2, C3, T1, T2 and T3. The histopathology results revealed that tibiotarsus bone of chickens had more lesions on day 6 (T2 group). The chondrocytes were disordered, and the size, shape and proliferation were affected. Transcriptome results revealed that differentially expressed genes (DEGs) identified were 63, 1026, 623, 130, 141 and 146 in C1 (2 days control vs 6 days control); C2 (2 days control vs 15 days control); C3 (6 days control vs 15 days control); T1 (2 days treatment vs 6 days treatment); T2 (2 days treatment vs 15 days treatment) and T3 (6 days treatment vs 15 days treatment) groups respectively. Whereas, 10 angiogenesis related-genes RHOC, MEIS2, BAIAP2, TGFBI, KLF2, CYR61, PTPN11, PLXNC1, HSPH1 and NRP2 were downregulated on day 6 in the treatment group. The pathway which was found enriched in the control and treatment groups was MAPK signaling pathway. Therefore selected 10 MAPK signaling pathway-related genes RAC2, MAP3K1, PRKCB, FLNB, IL1R1, PTPN7, RPS6KA, MAP3K6, GNA12 and HSPA8 which were found significantly downregulated in the treatment group on day 6. It is concluded that angiogenesis and MAPK signaling pathway related genes has an essential role in TD, as those top screened genes found downregulated in the thiram fed chickens when TD observed severed on day 6.
Collapse
Affiliation(s)
- Ali Raza Jahejo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Sheng Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Ding Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Guan-Bao Ning
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Afrasyab Khan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Raza Ali Mangi
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Muhammad Farhan Qadir
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Ajab Khan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Jian-Hui Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Wen-Xia Tian
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China.
| |
Collapse
|
29
|
Piróg KA, Dennis EP, Hartley CL, Jackson RM, Soul J, Schwartz JM, Bateman JF, Boot-Handford RP, Briggs MD. XBP1 signalling is essential for alleviating mutant protein aggregation in ER-stress related skeletal disease. PLoS Genet 2019; 15:e1008215. [PMID: 31260448 PMCID: PMC6625722 DOI: 10.1371/journal.pgen.1008215] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 07/12/2019] [Accepted: 05/27/2019] [Indexed: 01/02/2023] Open
Abstract
The unfolded protein response (UPR) is a conserved cellular response to the accumulation of proteinaceous material in endoplasmic reticulum (ER), active both in health and disease to alleviate cellular stress and improve protein folding. Multiple epiphyseal dysplasia (EDM5) is a genetic skeletal condition and a classic example of an intracellular protein aggregation disease, whereby mutant matrilin-3 forms large insoluble aggregates in the ER lumen, resulting in a specific 'disease signature' of increased expression of chaperones and foldases, and alternative splicing of the UPR effector XBP1. Matrilin-3 is expressed exclusively by chondrocytes thereby making EDM5 a perfect model system to study the role of protein aggregation in disease. In order to dissect the role of XBP1 signalling in aggregation-related conditions we crossed a p.V194D Matn3 knock-in mouse model of EDM5 with a mouse line carrying a cartilage specific deletion of XBP1 and analysed the resulting phenotype. Interestingly, the growth of mice carrying the Matn3 p.V194D mutation compounded with the cartilage specific deletion of XBP1 was severely retarded. Further phenotyping revealed increased intracellular retention of amyloid-like aggregates of mutant matrilin-3 coupled with dramatically decreased cell proliferation and increased apoptosis, suggesting a role of XBP1 signalling in protein accumulation and/or degradation. Transcriptomic analysis of chondrocytes extracted from wild type, EDM5, Xbp1-null and compound mutant lines revealed that the alternative splicing of Xbp1 is crucial in modulating levels of protein aggregation. Moreover, through detailed transcriptomic comparison with a model of metaphyseal chondrodysplasia type Schmid (MCDS), an UPR-related skeletal condition in which XBP1 was removed without overt consequences, we show for the first time that the differentiation-state of cells within the cartilage growth plate influences the UPR resulting from retention of a misfolded mutant protein and postulate that modulation of XBP1 signalling pathway presents a therapeutic target for aggregation related conditions in cells undergoing proliferation.
Collapse
Affiliation(s)
- Katarzyna A. Piróg
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
- * E-mail:
| | - Ella P. Dennis
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| | - Claire L. Hartley
- Wellcome Trust Centre for Cell Matrix Research, University of Manchester, Manchester, United Kingdom
| | - Robert M. Jackson
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| | - Jamie Soul
- Wellcome Trust Centre for Cell Matrix Research, University of Manchester, Manchester, United Kingdom
| | - Jean-Marc Schwartz
- Wellcome Trust Centre for Cell Matrix Research, University of Manchester, Manchester, United Kingdom
| | - John F. Bateman
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Raymond P. Boot-Handford
- Wellcome Trust Centre for Cell Matrix Research, University of Manchester, Manchester, United Kingdom
| | - Michael D. Briggs
- Institute of Genetic Medicine, Newcastle University, Newcastle, United Kingdom
| |
Collapse
|
30
|
Yoo SD, Han YR, Kim DH, Lee SA. Five-year follow-up outcomes of comprehensive rehabilitation in Korean siblings with cerebral, ocular, dental, auricular, skeletal anomalies (CODAS) syndrome: A case report. Medicine (Baltimore) 2019; 98:e15908. [PMID: 31169704 PMCID: PMC6571205 DOI: 10.1097/md.0000000000015908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
RATIONALE Cerebral, ocular, dental, auricular, skeletal anomalies (CODAS) syndrome is a very rare multisystem disorder, which shows malformations of the central nervous system, ears, eyes, teeth, and skeleton that was first reported in 1991. Only a few cases that sporadically occurred have been reported worldwide. The research investigating the pathogenesis and patterns of CODAS inheritance is still ongoing. There is no satisfactory treatment for this rare genetic disease yet. Due to the lack of curative medical treatment, rehabilitation could play a major role in treatment for genetic disease. PATIENT CONCERNS To our best knowledge, the 2 children described in this study are the only CODAS syndromes siblings reported in the world so far. These Korean siblings show highly distinctive features consisting of developmental delay, cataracts, vulnerability to tooth decay, epiphyseal dysplasia, and anomalous ears. DIAGNOSES CODAS syndrome. INTERVENTIONS Comprehensive long-term rehabilitation treatment during 5 years. OUTCOMES We report on the progress of the comprehensive long-term rehabilitation treatment at 5-year follow-up. Their fine motor and language skills development improved similarly to that of same-aged children. We observed the positive effect of rehabilitation on the quality of life. LESSONS The therapy of genetic disorders is challenging for pediatric neurologists and pediatric physiatrists. We suggest that rehabilitation is the best treatment currently available for this genetic disease that yields satisfactory therapeutic effect.
Collapse
|
31
|
Guo L, Bertola DR, Takanohashi A, Saito A, Segawa Y, Yokota T, Ishibashi S, Nishida Y, Yamamoto GL, Franco JFDS, Honjo RS, Kim CA, Musso CM, Timmons M, Pizzino A, Taft RJ, Lajoie B, Knight MA, Fischbeck KH, Singleton AB, Ferreira CR, Wang Z, Yan L, Garbern JY, Simsek-Kiper PO, Ohashi H, Robey PG, Boyde A, Matsumoto N, Miyake N, Spranger J, Schiffmann R, Vanderver A, Nishimura G, Passos-Bueno MRDS, Simons C, Ishikawa K, Ikegawa S. Bi-allelic CSF1R Mutations Cause Skeletal Dysplasia of Dysosteosclerosis-Pyle Disease Spectrum and Degenerative Encephalopathy with Brain Malformation. Am J Hum Genet 2019; 104:925-935. [PMID: 30982609 DOI: 10.1016/j.ajhg.2019.03.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [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: 11/08/2018] [Accepted: 03/04/2019] [Indexed: 11/18/2022] Open
Abstract
Colony stimulating factor 1 receptor (CSF1R) plays key roles in regulating development and function of the monocyte/macrophage lineage, including microglia and osteoclasts. Mono-allelic mutations of CSF1R are known to cause hereditary diffuse leukoencephalopathy with spheroids (HDLS), an adult-onset progressive neurodegenerative disorder. Here, we report seven affected individuals from three unrelated families who had bi-allelic CSF1R mutations. In addition to early-onset HDLS-like neurological disorders, they had brain malformations and skeletal dysplasia compatible to dysosteosclerosis (DOS) or Pyle disease. We identified five CSF1R mutations that were homozygous or compound heterozygous in these affected individuals. Two of them were deep intronic mutations resulting in abnormal inclusion of intron sequences in the mRNA. Compared with Csf1r-null mice, the skeletal and neural phenotypes of the affected individuals appeared milder and variable, suggesting that at least one of the mutations in each affected individual is hypomorphic. Our results characterized a unique human skeletal phenotype caused by CSF1R deficiency and implied that bi-allelic CSF1R mutations cause a spectrum of neurological and skeletal disorders, probably depending on the residual CSF1R function.
Collapse
Affiliation(s)
- Long Guo
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan
| | - Débora Romeo Bertola
- Unidade de Genética Clínica, Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo 05403-000, Brazil; Instituto de Biociências da Universidade de São Paulo, São Paulo 05508-090, Brazil.
| | - Asako Takanohashi
- Division of Neurology, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Asuka Saito
- Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Yuko Segawa
- Department of Orthopedic Surgery, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Takanori Yokota
- Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Satoru Ishibashi
- Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Yoichiro Nishida
- Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Guilherme Lopes Yamamoto
- Unidade de Genética Clínica, Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo 05403-000, Brazil; Instituto de Biociências da Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - José Francisco da Silva Franco
- Unidade de Genética Clínica, Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo 05403-000, Brazil
| | - Rachel Sayuri Honjo
- Unidade de Genética Clínica, Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo 05403-000, Brazil
| | - Chong Ae Kim
- Unidade de Genética Clínica, Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo 05403-000, Brazil
| | - Camila Manso Musso
- Instituto de Biociências da Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - Margaret Timmons
- Developmental and Metabolic Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Amy Pizzino
- Division of Neurology, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ryan J Taft
- Illumina, Inc., 5200 Illumina Way, San Diego, CA 92122, USA
| | - Bryan Lajoie
- Illumina, Inc., 5200 Illumina Way, San Diego, CA 92122, USA
| | - Melanie A Knight
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Kenneth H Fischbeck
- Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
| | - Andrew B Singleton
- Laboratory of Neurogenetics, National Institute of Aging, NIH, Bethesda, MD 20892, USA
| | - Carlos R Ferreira
- Medical Genetics Branch, National Human Genome Research Institute, NIH, Bethesda, MD 20892, USA, and Division of Genetics and Metabolism, Children's National Health System, Washington, DC 20010, USA
| | - Zheng Wang
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan; Department of Medical Genetics, Institute of Basic Medical Sciences, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100005, People's Republic of China
| | - Li Yan
- Department of Neurology, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China
| | - James Y Garbern
- Center of Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Pelin O Simsek-Kiper
- Department of Pediatrics, Hacettepe University Medical Faculty, Ankara 06100, Turkey
| | - Hirofumi Ohashi
- Division of Medical Genetics, Saitama Children's Medical Center, Saitama 330-8777, Japan
| | - Pamela G Robey
- Skeletal Biology Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 20892, USA
| | - Alan Boyde
- Biophysics, Oral Growth and Development, Dental Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
| | - Jürgen Spranger
- Central German Competence Center for Rare Diseases (MKSE), Magdeburg 39120, Germany; Greenwood Genetic Center, Greenwood, SC 29646, USA
| | | | - Adeline Vanderver
- Division of Neurology, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Gen Nishimura
- Intractable Disease Center, Saitama University Hospital, Moro 350-0495, Japan
| | | | - Cas Simons
- Translational Bioinformatics Group, Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne, VIC 3052, Australia; Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Kinya Ishikawa
- Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan.
| |
Collapse
|
32
|
Burrage LC, Reynolds JJ, Baratang NV, Phillips JB, Wegner J, McFarquhar A, Higgs MR, Christiansen AE, Lanza DG, Seavitt JR, Jain M, Li X, Parry DA, Raman V, Chitayat D, Chinn IK, Bertuch AA, Karaviti L, Schlesinger AE, Earl D, Bamshad M, Savarirayan R, Doddapaneni H, Muzny D, Jhangiani SN, Eng CM, Gibbs RA, Bi W, Emrick L, Rosenfeld JA, Postlethwait J, Westerfield M, Dickinson ME, Beaudet AL, Ranza E, Huber C, Cormier-Daire V, Shen W, Mao R, Heaney JD, Orange JS, Bertola D, Yamamoto GL, Baratela WAR, Butler MG, Ali A, Adeli M, Cohn DH, Krakow D, Jackson AP, Lees M, Offiah AC, Carlston CM, Carey JC, Stewart GS, Bacino CA, Campeau PM, Lee B. Bi-allelic Variants in TONSL Cause SPONASTRIME Dysplasia and a Spectrum of Skeletal Dysplasia Phenotypes. Am J Hum Genet 2019; 104:422-438. [PMID: 30773277 PMCID: PMC6408318 DOI: 10.1016/j.ajhg.2019.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 08/10/2018] [Accepted: 01/17/2019] [Indexed: 12/14/2022] Open
Abstract
SPONASTRIME dysplasia is an autosomal-recessive spondyloepimetaphyseal dysplasia characterized by spine (spondylar) abnormalities, midface hypoplasia with a depressed nasal bridge, metaphyseal striations, and disproportionate short stature. Scoliosis, coxa vara, childhood cataracts, short dental roots, and hypogammaglobulinemia have also been reported in this disorder. Although an autosomal-recessive inheritance pattern has been hypothesized, pathogenic variants in a specific gene have not been discovered in individuals with SPONASTRIME dysplasia. Here, we identified bi-allelic variants in TONSL, which encodes the Tonsoku-like DNA repair protein, in nine subjects (from eight families) with SPONASTRIME dysplasia, and four subjects (from three families) with short stature of varied severity and spondylometaphyseal dysplasia with or without immunologic and hematologic abnormalities, but no definitive metaphyseal striations at diagnosis. The finding of early embryonic lethality in a Tonsl-/- murine model and the discovery of reduced length, spinal abnormalities, reduced numbers of neutrophils, and early lethality in a tonsl-/- zebrafish model both support the hypomorphic nature of the identified TONSL variants. Moreover, functional studies revealed increased amounts of spontaneous replication fork stalling and chromosomal aberrations, as well as fewer camptothecin (CPT)-induced RAD51 foci in subject-derived cell lines. Importantly, these cellular defects were rescued upon re-expression of wild-type (WT) TONSL; this rescue is consistent with the hypothesis that hypomorphic TONSL variants are pathogenic. Overall, our studies in humans, mice, zebrafish, and subject-derived cell lines confirm that pathogenic variants in TONSL impair DNA replication and homologous recombination-dependent repair processes, and they lead to a spectrum of skeletal dysplasia phenotypes with numerous extra-skeletal manifestations.
Collapse
Affiliation(s)
- Lindsay C Burrage
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA
| | - John J Reynolds
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Nissan Vida Baratang
- Centre Hospitalier Universitaire Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T1J4, Canada
| | | | - Jeremy Wegner
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Ashley McFarquhar
- Centre Hospitalier Universitaire Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T1J4, Canada
| | - Martin R Higgs
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Audrey E Christiansen
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Denise G Lanza
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - John R Seavitt
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Mahim Jain
- Department of Bone and Osteogenesis Imperfecta, Kennedy Krieger Institute, Baltimore, MD 21205, USA
| | - Xiaohui Li
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - David A Parry
- Medical Research Council Institute of Genetics & Molecular Medicine, the University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
| | - Vandana Raman
- Division of Pediatric Endocrinology and Diabetes, University of Utah, Salt Lake City, UT 84112, USA
| | - David Chitayat
- The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, ON M5G 1Z5, Canada; Department of Pediatrics, Division of Clinical and Metabolic Genetics, the Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Ivan K Chinn
- Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Division of Pediatric Immunology, Allergy, and Rheumatology, Texas Children's Hospital, Houston, TX 77030, USA
| | - Alison A Bertuch
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Lefkothea Karaviti
- Division of Diabetes and Endocrinology, Texas Children's Hospital, Houston, TX 77030, USA
| | - Alan E Schlesinger
- Department of Pediatric Radiology, Texas Children's Hospital, Houston, TX 77030, USA; Department of Radiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Dawn Earl
- Seattle Children's Hospital, Seattle, WA 98195, USA
| | - Michael Bamshad
- Seattle Children's Hospital, Seattle, WA 98195, USA; Departments of Pediatrics and Genome Sciences, University of Washington, Seattle, WA 98195, USA
| | - Ravi Savarirayan
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, University of Melbourne, Parkville, VIC 3052, Australia
| | - Harsha Doddapaneni
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Donna Muzny
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Shalini N Jhangiani
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Christine M Eng
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics, Houston, TX 77030, USA
| | - Richard A Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Weimin Bi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics, Houston, TX 77030, USA
| | - Lisa Emrick
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Division of Neurology and Developmental Neuroscience and Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - John Postlethwait
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Monte Westerfield
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Mary E Dickinson
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Arthur L Beaudet
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Emmanuelle Ranza
- Service of Genetic Medicine, University of Geneva Medical School, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Celine Huber
- Department of Genetics, INSERM UMR1163, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, AP-HP, Hôpital Necker Enfants Malades, Paris 75015, France
| | - Valérie Cormier-Daire
- Department of Genetics, INSERM UMR1163, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, AP-HP, Hôpital Necker Enfants Malades, Paris 75015, France
| | - Wei Shen
- Associated Regional and University Pathologists Laboratories, Salt Lake City, UT 84108, USA; Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
| | - Rong Mao
- Associated Regional and University Pathologists Laboratories, Salt Lake City, UT 84108, USA; Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
| | - Jason D Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jordan S Orange
- Division of Pediatric Immunology, Allergy, and Rheumatology, Texas Children's Hospital, Houston, TX 77030, USA; Current affiliation: Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York Presbyterian, New York, NY 10032, USA
| | - Débora Bertola
- Clinical Genetics Unit, Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP 05403-000, Brazil; Centro de Pesquisa sobre o Genoma Humano e Células-Tronco, Instituto de Biociências da Universidade de São Paulo, SP 05508-0900, Brazil
| | - Guilherme L Yamamoto
- Clinical Genetics Unit, Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP 05403-000, Brazil; Centro de Pesquisa sobre o Genoma Humano e Células-Tronco, Instituto de Biociências da Universidade de São Paulo, SP 05508-0900, Brazil
| | - Wagner A R Baratela
- Clinical Genetics Unit, Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP 05403-000, Brazil
| | - Merlin G Butler
- Departments of Psychiatry and Behavioral Sciences and Pediatrics, Kansas University Medical Center, Kansas City, KS 66160, USA
| | - Asim Ali
- Department of Ophthalmology and Vision Sciences, the Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Mehdi Adeli
- Department of Allergy and Immunology, Sidra Medicine, Hamad Medical Corporation, Weill Cornell Medicine, Qatar, Doha, Qatar
| | - Daniel H Cohn
- Department of Molecular, Cell, and Developmental Biology and Department of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Deborah Krakow
- Department of Orthopaedic Surgery, Department of Human Genetics and Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Andrew P Jackson
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Melissa Lees
- North East Thames Regional Genetics Service, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Amaka C Offiah
- Department of Oncology and Metabolism, Academic Unit of Child Health, University of Sheffield, Sheffield S10 2TH, UK
| | - Colleen M Carlston
- Associated Regional and University Pathologists Laboratories, Salt Lake City, UT 84108, USA; Department of Pathology, University of Utah, Salt Lake City, UT 84112, USA
| | - John C Carey
- Department of Pediatrics, Division of Medical Genetics, University of Utah, Salt Lake City, UT 84112, USA
| | - Grant S Stewart
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Carlos A Bacino
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA
| | - Philippe M Campeau
- Centre Hospitalier Universitaire Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T1J4, Canada
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA.
| |
Collapse
|
33
|
Uttarilli A, Shah H, Bhavani GS, Upadhyai P, Shukla A, Girisha KM. Phenotyping and genotyping of skeletal dysplasias: Evolution of a center and a decade of experience in India. Bone 2019; 120:204-211. [PMID: 30408610 DOI: 10.1016/j.bone.2018.10.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 08/16/2018] [Revised: 10/16/2018] [Accepted: 10/31/2018] [Indexed: 12/21/2022]
Abstract
Genetic heterogeneity, high burden and the paucity of genetic testing for rare diseases challenge genomic healthcare for these disorders in India. Here we report our experience over the past decade, of establishing the genomic evaluation of skeletal dysplasia at a tertiary university hospital in India. Research or clinical genomic testing was carried out by Sanger sequencing and next-generation sequencing. Close national and international collaborations aided phenotyping and genotyping. We report 508 families (557 affected individuals) with the definitive molecular diagnosis of skeletal dysplasia. Dysostoses multiplex (n = 196), genetic inflammatory/rheumatoid-like osteoarthropathies (n = 114) and osteogenesis imperfecta and decreased bone density (n = 58) were the most common diagnoses. We enumerate the processes, clinical diagnoses and causal variants in the cohort with 48 novel variants in 21 genes. We summarize scientific contributions of the center to the description of clinical and mutation profiles and discovery of new phenotypes and genetic etiology. Our study illustrates the establishment and application of genomic testing tools for genetic disorders of skeleton in a large cohort. We believe this could be a model to emulate for other developing genetic centers.
Collapse
Affiliation(s)
- Anusha Uttarilli
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Hitesh Shah
- Pediatric Orthopedics Services, Department of Orthopedics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Gandham SriLakshmi Bhavani
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Priyanka Upadhyai
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Anju Shukla
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Katta M Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India.
| |
Collapse
|
34
|
Thompson E, Abdalla E, Superti-Furga A, McAlister W, Kratz L, Unger S, Royer-Bertrand B, Campos-Xavier B, Mittaz-Crettol L, Amin AK, DeSanto C, Wilson DB, Douglas G, Kozel B, Shinawi M. Lamin B receptor-related disorder is associated with a spectrum of skeletal dysplasia phenotypes. Bone 2019; 120:354-363. [PMID: 30448303 DOI: 10.1016/j.bone.2018.11.006] [Citation(s) in RCA: 10] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/29/2018] [Accepted: 11/11/2018] [Indexed: 11/20/2022]
Abstract
LBR (Lamin B Receptor) encodes a bifunctional protein important for cholesterol biosynthesis and heterochromatin organization on the inner nuclear membrane. Pathogenic variants in LBR are associated with marked phenotypic variability, ranging from the benign Pelger-Huët anomaly to lethal Greenberg Dysplasia. We performed trio exome sequencing (ES) on two patients with atypical variants of skeletal dysplasia and their unaffected parents. Patient 1 exhibited frontal bossing, mid-face hypoplasia, short stature with rhizomelic limb shortening, and relative macrocephaly at birth. Although remained short, Patient 1 later showed spontaneous improvement in her skeletal findings. Exome sequencing revealed two novel variants in LBR, c.1504C > G (p.Arg502Gly) in exon 12 and c.1748G > T (p.Arg583Leu) in exon 14, which were inherited from her unaffected father and mother, respectively. Sterol analysis revealed an increased level of cholesta‑8,14‑dien‑3β‑ol to 2.9% of total sterols, consistent with a functional deficiency of 3β‑hydroxysterol Δ14‑reductase. Patient 2 presented at birth with short stature and marked rhizomelic limb shortening but later exhibited decreasing severity of shortening of the long bones and improvement in the radiographic skeletal abnormalities although he continued to be significantly short at age 10 years. Exome sequencing revealed that Patient 2 is homozygous for a pathogenic variant c.1534C > T (p.Arg512Trp) in exon 12 of LBR, which was inherited from his unaffected consanguineous parents. This report provides further evidence for a phenotypic spectrum of LBR-associated disorders and expands the genotypic spectrum by describing 3 novel disease-causing variants that have not been previously associated with a disease. Moreover, our data on Patient 1 demonstrate that variants throughout the gene appear to influence both the sterol reductase and nuclear functions of LBR.
Collapse
Affiliation(s)
- Eliza Thompson
- Department of Pediatrics, Division of Medical Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Ebtesam Abdalla
- Department of Human Genetics, Medical Research Institute, Alexandria University, Egypt
| | - Andrea Superti-Furga
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - William McAlister
- Mallinckrodt Institute of Radiology at St. Louis Children's Hospital, Washington University School of Medicine, St Louis, MO, USA
| | - Lisa Kratz
- Department of Neurogenetics, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Sheila Unger
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Beryl Royer-Bertrand
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Belinda Campos-Xavier
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Laureane Mittaz-Crettol
- Division of Genetic Medicine, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Asmaa K Amin
- Department of Human Genetics, Medical Research Institute, Alexandria University, Egypt
| | - Cori DeSanto
- Department of Pediatrics, Division of Medical Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - David B Wilson
- Departments of Pediatrics and Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Beth Kozel
- Department of Pediatrics, Division of Medical Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Marwan Shinawi
- Department of Pediatrics, Division of Medical Genetics, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
35
|
Hirose T, Shimazaki T, Takahashi N, Fukada T, Watanabe T, Tangkawattana P, Takehana K. Morphometric analysis of thoracic aorta in Slc39a13/Zip13-KO mice. Cell Tissue Res 2019; 376:137-141. [PMID: 30610452 DOI: 10.1007/s00441-018-2977-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 07/18/2018] [Accepted: 10/13/2018] [Indexed: 01/24/2023]
Abstract
Ehlers-Danlos syndrome (EDS) is a collection of inheritable diseases involving the musculoskeletal, integumentary and visual systems. Spondylodysplastic EDS-ZIP13 (spEDS-ZIP13: OMIM 612350) was recently defined as a new form of EDS. Although vasculitis has been found in many spEDS-ZIP13 patients, vascular pathology has not been included as a pathognomonic lesion of this type of EDS. We investigate the morphometry of the thoracic aorta in wild-type and Zip13-knockout (Zip13-KO) mice. Our assessment found abnormalities in the number and morphology of elastic and cellular components in the aortic wall, especially the tunica media, of Zip13-KO mice, indicating aortic fragility. Accordingly, our major findings (vascular smooth muscle cells with small nuclei, small percentage of elastic membrane area per tunica media, many large elastic flaps) should be considered vulnerable characteristics indicating fragility of the aorta in patients with spEDS-ZIP13.
Collapse
Affiliation(s)
- Takuya Hirose
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Takamasa Shimazaki
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Naoki Takahashi
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Toshiyuki Fukada
- Molecular and Cellular Physiology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8055, Japan
| | - Takafumi Watanabe
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
- Laboratory of Animal Functional Anatomy, Faculty of Agriculture, Shinshu University, Minami-minowa, Kami-ina, Nagano, 399-4598, Japan
| | - Prasarn Tangkawattana
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan.
- Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Kazushige Takehana
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| |
Collapse
|
36
|
Bell PA, Dennis EP, Hartley CL, Jackson RM, Porter A, Boot-Handford RP, Pirog KA, Briggs MD. Mesencephalic astrocyte-derived neurotropic factor is an important factor in chondrocyte ER homeostasis. Cell Stress Chaperones 2019; 24:159-173. [PMID: 30543055 PMCID: PMC6363614 DOI: 10.1007/s12192-018-0953-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/21/2018] [Accepted: 11/23/2018] [Indexed: 12/12/2022] Open
Abstract
Mesencephalic astrocyte-derived neurotrophic factor (MANF) is an endoplasmic reticulum (ER) resident protein that can be secreted due to an imperfect KDEL motif. MANF plays a cytoprotective role in several soft tissues and is upregulated in conditions resulting from intracellular retention of mutant protein, including two skeletal diseases, metaphyseal chondrodysplasia, Schmid type (MCDS) and multiple epiphyseal dysplasia (MED). The role of MANF in skeletal tissue homeostasis is currently unknown. Interestingly, cartilage-specific deletion of Manf in a mouse model of MED resulted in increased disease severity, suggesting its upregulation may be chondroprotective. Treatment of MED chondrocytes with exogenous MANF led to a decrease in the cellular levels of BiP (GRP78), confirming MANF's potential to modulate ER stress responses. However, it did not alleviate the intracellular retention of mutant matrilin-3, suggesting that it is the intracellular MANF that is of importance in the pathobiology of skeletal dysplasias. The Col2Cre-driven deletion of Manf from mouse cartilage resulted in a chondrodysplasia-like phenotype. Interestingly, ablation of MANF in cartilage did not have extracellular consequences but led to an upregulation of several ER-resident chaperones including BiP. This apparent induction of ER stress in turn led to dysregulated chondrocyte apoptosis and decreased proliferation, resulting in reduced long bone growth. We have previously shown that ER stress is an underlying disease mechanism for several skeletal dysplasias. The cartilage-specific deletion of Manf described in this study phenocopies our previously published chondrodysplasia models, further confirming that ER stress itself is sufficient to disrupt skeletal growth and thus represents a potential therapeutic target.
Collapse
Affiliation(s)
- P A Bell
- Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle Upon Tyne, NE1 3BZ, UK
- Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - E P Dennis
- Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle Upon Tyne, NE1 3BZ, UK
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - C L Hartley
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
- Genomic Diagnostics Laboratory, Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Manchester, M13 9WL, UK
| | - R M Jackson
- Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle Upon Tyne, NE1 3BZ, UK
| | - A Porter
- Newcastle University Protein and Proteome Analysis Facility, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - R P Boot-Handford
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - K A Pirog
- Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle Upon Tyne, NE1 3BZ, UK.
| | - M D Briggs
- Institute of Genetic Medicine, International Centre for Life, Newcastle University, Newcastle Upon Tyne, NE1 3BZ, UK
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| |
Collapse
|
37
|
Coomans C, Sieben A, Lammens M, Ceuterick-de Groote C, Vandenbroecke C, Goethals I, Van Melkebeke D, Hemelsoet D. Early-onset dementia, leukoencephalopathy and brain calcifications: a clinical, imaging and pathological comparison of ALSP and PLOSL/Nasu Hakola disease. Acta Neurol Belg 2018; 118:607-615. [PMID: 30242731 DOI: 10.1007/s13760-018-1023-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 08/01/2018] [Accepted: 09/10/2018] [Indexed: 11/26/2022]
Abstract
Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia, and Nasu Hakola disease or polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy are both underrecognized progressive degenerative white matter diseases that can present with young dementia, leukoencephalopathy and brain calcifications. We report and compare three cases in terms of clinical phenotype, imaging and neuropathological findings. Both cases have led to the identification of two novel causal mutations.
Collapse
Affiliation(s)
- C Coomans
- Department of Neurology, Ghent University Hospital, Ghent, Belgium.
| | - A Sieben
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
- Institute Born-Bunge, Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - M Lammens
- Institute Born-Bunge, Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
- Department of Pathology, Antwerp University Hospital, Antwerp, Belgium
| | - C Ceuterick-de Groote
- Institute Born-Bunge, Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - C Vandenbroecke
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - I Goethals
- Department of Nuclear Medicine, Ghent University Hospital, Ghent, Belgium
| | - D Van Melkebeke
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - D Hemelsoet
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| |
Collapse
|
38
|
Yuan SH, Hiramatsu N, Liu Q, Sun XV, Lenh D, Chan P, Chiang K, Koo EH, Kao AW, Litvan I, Lin JH. Tauopathy-associated PERK alleles are functional hypomorphs that increase neuronal vulnerability to ER stress. Hum Mol Genet 2018; 27:3951-3963. [PMID: 30137327 PMCID: PMC6216228 DOI: 10.1093/hmg/ddy297] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 04/03/2018] [Revised: 08/04/2018] [Accepted: 08/07/2018] [Indexed: 02/06/2023] Open
Abstract
Tauopathies are neurodegenerative diseases characterized by tau protein pathology in the nervous system. EIF2AK3 (eukaryotic translation initiation factor 2 alpha kinase 3), also known as PERK (protein kinase R-like endoplasmic reticulum kinase), was identified by genome-wide association study as a genetic risk factor in several tauopathies. PERK is a key regulator of the Unfolded Protein Response (UPR), an intracellular signal transduction mechanism that protects cells from endoplasmic reticulum (ER) stress. PERK variants had previously been identified in Wolcott-Rallison Syndrome, a rare autosomal recessive metabolic disorder, and these variants completely abrogated the function of PERK's kinase domain or prevented PERK expression. In contrast, the PERK tauopathy risk variants were distinct from the Wolcott-Rallison variants and introduced missense alterations throughout the PERK protein. The function of PERK tauopathy variants and their effects on neurodegeneration are unknown. Here, we discovered that tauopathy-associated PERK alleles showed reduced signaling activity and increased PERK protein turnover compared to protective PERK alleles. We found that iPSC-derived neurons carrying PERK risk alleles were highly vulnerable to ER stress-induced injury with increased tau pathology. We found that chemical inhibition of PERK in human iPSC-derived neurons also increased neuronal cell death in response to ER stress. Our results indicate that tauopathy-associated PERK alleles are functional hypomorphs during the UPR. We propose that reduced PERK function leads to neurodegeneration by increasing neuronal vulnerability to ER stress-associated damage. In this view, therapies to enhance PERK signaling would benefit at-risk carriers of hypomorphic alleles.
Collapse
Affiliation(s)
- Shauna H Yuan
- Department of Neurosciences, University of California, La Jolla, San Diego, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| | - Nobuhiko Hiramatsu
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
- Department of Pathology, University of California, La Jolla, San Diego, CA, USA
| | - Qing Liu
- Department of Neurosciences, University of California, La Jolla, San Diego, CA, USA
| | - Xuehan Victoria Sun
- Department of Pathology, University of California, La Jolla, San Diego, CA, USA
| | - David Lenh
- Department of Neurosciences, University of California, La Jolla, San Diego, CA, USA
| | - Priscilla Chan
- Department of Pathology, University of California, La Jolla, San Diego, CA, USA
| | - Karen Chiang
- Department of Neurosciences, University of California, La Jolla, San Diego, CA, USA
- Department of Pathology, University of California, La Jolla, San Diego, CA, USA
| | - Edward H Koo
- Department of Neurosciences, University of California, La Jolla, San Diego, CA, USA
- Departments of Medicine and Physiology, National University of Singapore, Yong Loo Lin School of Medicine, Singapore
| | - Aimee W Kao
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
| | - Irene Litvan
- Department of Neurosciences, University of California, La Jolla, San Diego, CA, USA
| | - Jonathan H Lin
- Department of Pathology, University of California, La Jolla, San Diego, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| |
Collapse
|
39
|
Kausar M, Mäkitie RE, Toiviainen-Salo S, Ignatius J, Anees M, Mäkitie O. Recessive multiple epiphyseal dysplasia - Clinical characteristics caused by rare compound heterozygous SLC26A2 genotypes. Eur J Med Genet 2018; 62:103573. [PMID: 30423444 DOI: 10.1016/j.ejmg.2018.11.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 03/06/2018] [Revised: 10/17/2018] [Accepted: 11/09/2018] [Indexed: 11/30/2022]
Abstract
Pathogenic sequence variants in the solute carrier family 26 member 2 (SLC26A2) gene result in lethal (achondrogenesis Ib and atelosteogenesis II) and non-lethal (diastrophic dysplasia and recessive multiple epiphyseal dysplasia, rMED) chondrodysplasias. We report on two new patients with rMED and very rare compound heterozygous mutation combinations in non-consanguineous families. Patient I presented in childhood with waddling gait and joint stiffness. Radiographs showed epiphyseal changes, bilateral coxa plana-deformity and knee valgus deformity, for which he underwent surgeries. At present 33 years his height is 165 cm. Patient II presented with cleft palate, small jaw, short limbs, underdeveloped thumbs and on radiographs, cervical kyphosis with an underdeveloped C4. He also developed severe scoliosis but has grown at -2.9 SD curve. Molecular analysis revealed that patient I is heterozygous for two known pathogenic variants in SLC26A2, a splice site variant c.-26+2T > C and a missense variant c.1957T > A (p.Cys653Ser), while patient II is compound heterozygous for missense variants c.835C > T (p.Arg279Trp) and c.1535C > A (p.Thr512Lys). These patients further elucidate the variability of the phenotypic and genetic presentations of rMED.
Collapse
Affiliation(s)
- Mehran Kausar
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan; Folkhälsan Institute of Genetics and University of Helsinki, Helsinki, Finland
| | - Riikka E Mäkitie
- Folkhälsan Institute of Genetics and University of Helsinki, Helsinki, Finland
| | - Sanna Toiviainen-Salo
- Department of Pediatric Radiology, HUS Medical Imaging Centre, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaakko Ignatius
- Department of Clinical Genetics, University of Turku and Turku University Hospital, Turku, Finland
| | - Mariam Anees
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Outi Mäkitie
- Folkhälsan Institute of Genetics and University of Helsinki, Helsinki, Finland; Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden.
| |
Collapse
|
40
|
Kimura T, Ozaki T, Fujita K, Yamashita A, Morioka M, Ozono K, Tsumaki N. Proposal of patient-specific growth plate cartilage xenograft model for FGFR3 chondrodysplasia. Osteoarthritis Cartilage 2018; 26:1551-1561. [PMID: 30086379 DOI: 10.1016/j.joca.2018.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 02/21/2018] [Revised: 07/12/2018] [Accepted: 07/21/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE FGFR3 chondrodysplasia is caused by a gain-of-function mutation of the FGFR3 gene. The disease causes abnormal growth plate cartilage and lacks effective drug treatment. We sought to establish an in vivo model for the study of FGFR3 chondrodysplasia pathology and drug testing. DESIGN We created cartilage from human induced pluripotent stem cells (hiPSCs) and transplanted the cartilage into the subcutaneous spaces of immunodeficient mice. We then created cartilage from the hiPSCs of patients with FGFR3 chondrodysplasia and transplanted them into immunodeficient mice. We treated some mice with a FGFR inhibitor after the transplantation. RESULTS Xenografting the hiPSC-derived cartilage reproduced human growth plate cartilage consisting of zones of resting, proliferating, prehypertrophic and hypertrophic chondrocytes and bone in immunodeficient mice. Immunohistochemistry of xenografts using anti-human nuclear antigen antibody indicated that all chondrocytes in growth plate cartilage were human, whereas bone was composed of human and mouse cells. The pathology of small hypertrophic chondrocytes due to up-regulated FGFR3 signaling in FGFR3 skeletal dysplasia was recapitulated in growth plate cartilage formed in the xenografts of patient-specific hiPSC-derived cartilage. The mean diameters of hypertrophic chondrocytes between wild type and thanatophoric dysplasia were significantly different (95% CI: 13.2-26.9; n = 4 mice, one-way analysis of variance (ANOVA)). The pathology was corrected by systemic administration of a FGFR inhibitor to the mice. CONCLUSION The patient-specific growth plate cartilage xenograft model for FGFR3 skeletal dysplasia indicated recapitulation of pathology and effectiveness of a FGFR inhibitor for treatment and warrants more study for its usefulness to study disease pathology and drug testing.
Collapse
Affiliation(s)
- T Kimura
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan; Department of Pediatrics, Osaka University Graduate School of Medicine, Japan
| | - T Ozaki
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - K Fujita
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - A Yamashita
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - M Morioka
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan
| | - K Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Japan
| | - N Tsumaki
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Japan.
| |
Collapse
|
41
|
Ge YL, Liu CH, Wang MH, Li ZZ, Zhang X, Yu HL, Fu AS, Wang HY. Does Adenovirus and Coxsackie B Virus Infection Play a Role in Tracheobronchopathia Osteochondroplastica (TO). Clin Lab 2018; 64. [PMID: 30549982 DOI: 10.7754/clin.lab.2018.180618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
<i>Background:</i> Tracheobronchopathia osteochondroplastica (TO) is a rare benign disease. We report a case of TO. <i>Methods:</i> Chest CT scan and bronchoscope with biopsy was performed for diagnosis and blood tests explored for the latent etiology. <i>Results:</i> Chest CT scan and bronchoscopic images showed multiple nodular protrusions in the trachea and main bronchi. Histopathology demonstrated sub-mucosal ossification and inflammatory cell infiltration. Laboratory inspection showed adenovirus and coxsackie B virus IgM antibodies were positive. <i>Conclusions:</i> The patient recently had a virus infection and inflammation was observed in histopathology, which indicated adenovirus and coxsackie B virus may play a role in the occurrence or exacerbation of TO.
Collapse
|
42
|
Zhang H, Mehmood K, Jiang X, Yao W, Iqbal M, Waqas M, Rehman MU, Li A, Shen Y, Li J. Effect of tetramethyl thiuram disulfide (thiram) in relation to tibial dyschondroplasia in chickens. Environ Sci Pollut Res Int 2018; 25:28264-28274. [PMID: 30076550 DOI: 10.1007/s11356-018-2824-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 04/20/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
Tetramethyl thiuram disulfide (thiram) is one of the important pesticides, which is extensively used in agriculture, but if it is combined with the cell membrane, then it causes membrane damage, bone morphogenic inactivation, and inhibited angiogenesis. Thiram has been considered a common cause of tibial dyschondrolplasia (TD) in various avian species, because it becomes the part of feed due to environmental contamination and its overuse in agriculture as pesticides or fungicide. However, there is no systematic study on the changes of the correlation indexes with toxic effect of the thiram in chickens. Therefore, we evaluated the toxic effects of thiram on growth performance of chickens, viscera organ index, pathological changes in tissue, and gene expression associated with osteoblast differentiation, vascularization, and tibial bone development. For this study, 1-day chickens (n = 300) were randomly distributed into two equal groups, control group (normal basal diet) and thiram group (adding thiram 40 mg/kg in basal diet). The result presented that thiram group chickens were looking unhealthy, lazy, and showing clinical symptoms like lameness. Thiram treatment significantly reduced the performance of chickens, liver index, and tibial length compared with control group. The toxic effect of thiram increased the visceral organ index (spleen and cardiac), tibia index, and TD severity considerably. It also increased serum Ca2+ and P3+ concentration and decreased tibial density compared to control chickens but the difference was not significant. Histopathology of tibia and liver showed that there were severe lesions due to toxic effect of thiram. Furthermore, HIF-1α and VEGF antibody localizations were increased and WNT4 localization was reduced significantly in immunohistochemical analysis. This systemic study of toxic effects of thiram in chicken concluded that thiram reduced the growth performance of chickens through decreasing liver index, whereas increasing kidney, cardiac, and spleen index, and induced TD by changing the expressions of VEGF, HIF-1α, and WNT4.
Collapse
Affiliation(s)
- Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Khalid Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
- University College of Veterinary and Animal Sciences, Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Xiong Jiang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Mujahid Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Muhammad Waqas
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Mujeeb Ur Rehman
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Aoyun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Yaoqin Shen
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
- College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet, 860000, People's Republic of China.
| |
Collapse
|
43
|
Forouhan M, Mori K, Boot-Handford RP. Paradoxical roles of ATF6α and ATF6β in modulating disease severity caused by mutations in collagen X. Matrix Biol 2018; 70:50-71. [PMID: 29522813 PMCID: PMC6090092 DOI: 10.1016/j.matbio.2018.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/02/2018] [Accepted: 03/03/2018] [Indexed: 01/05/2023]
Abstract
Whilst the role of ATF6α in modulating the unfolded protein response (UPR) has been well documented, the function of its paralogue ATF6β is less well understood. Using knockdown in cell culture and gene ablation in mice we have directly compared the roles of ATF6α & β in responding to the increased ER stress induced by mutant forms of type X collagen that cause the ER stress-associated metaphyseal chondrodysplasia type Schmid (MCDS). ATF6α more efficiently deals with the disease-associated ER stress in the absence of ATF6β and conversely, ATF6β is less effective in the absence of ATF6α. Furthermore, disease severity in vivo is increased by ATF6α ablation and decreased by ATF6β ablation. In addition, novel functions for each paralogue are described including an ATF6β-specific role in controlling growth plate chondrocyte proliferation. The clear demonstration of the intimate relationship of the two ATF6 isoforms and how ATF6β can moderate the activity of ATF6α and vice versa is of great significance for understanding the UPR mechanism. The activities of both ATF6 isoforms and their separate roles need consideration when deciding how to target increased ER stress as a means of treating MCDS and other ER stress-associated diseases.
Collapse
Affiliation(s)
- M Forouhan
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Manchester, UK
| | - K Mori
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - R P Boot-Handford
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Manchester, UK.
| |
Collapse
|
44
|
Maaloul I, Aloulou H, Kmiha S, Belfitouri Y, Kamoun H, Fakhfakh F, Chabchoub I, Kammoun T, Hachicha M. Hypoparathyroidism in children: a study of eight cases. Tunis Med 2018; 96:472-476. [PMID: 30430523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Hypoparathyroidism is a rare pediatric endocrine disease, which is caused by low circulating levels of PTH or insensitivity to its action in the target tissues. AIM To report the clinical and biochemical characteristics and theoutcome of 8 patients with hypoparathyroidism. METHODS We analyzed retrospectively the results of clinical, biochemical, radiological findings of patients with hypoparathyroidism diagnosed in pediatric department of Hedi Chaker Hospital during the period 1994-2013. RESULTS Eight patients (5 females and 3 males) were diagnosed with hypoparathyroidism during 20 years's period. The median age at the onset of first symptoms was 17,5 months (15 days- 5 years and 10 months). Seizures were the most commonly presenting symptom and were seen in seven cases. Eight patients were diagnosed with hypoparathyroidism (Di-Georges syndrome: one case, Sanjad Sakati syndrome: 3 case, kearns sayre syndrome: 1 case, autoimmune polyendocrinopathy candidiasis- ectodermal dystrophy: one case, idiopathic hypoparathyroidism: two cases. Conventional treatment was based on calcium and vitamin D analogs. The average of follow up was 5 years. Nephrocalcinosis was noted in two patients. The death occurred in five patients; it was related to hypocalcaemia in one patient. CONCLUSION The diagnosis of hyperparathyroidism is easy; it's established on the association of hypocalcaemia and hyperphosphatemia. Etiologic approach is based on molecular findings. Vitamin D analog treatment of hypoparathyroidism in children involves the challenge, of adjusting treatment dosage to minimize both symptomatic hypocalcemia and asymptomatic, but potentially kidney-damaging, hypercalciuria causing nephrocalcinosis and renal insufficiency.
Collapse
|
45
|
Ferreira M, Morel H, Dixmier A, Arbion F, Marchand-Adam S. [Osteochondroplastic tracheobronchopathy: About three cases]. Rev Mal Respir 2018; 35:738-744. [PMID: 29945809 DOI: 10.1016/j.rmr.2017.10.668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 05/27/2017] [Accepted: 10/25/2017] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Osteochondroplastic tracheobronchopathy (OCTB) is a rare disorder of unknown cause that affects the tracheobronchial tree. It is characterized by multiple cartilaginous formations or bone nodules projecting into the tracheal or proximal bronchial lumen. It is usually asymptomatic because of the slow progression of the nodules. However, chronic cough, recurrent hemoptysis or recurrent respiratory infections have been reported. OBSERVATIONS We describe the cases of three patients with symptomatic OCTB: two men and one woman consulting for bronchial infections or pneumonia with sputum difficulties (2 cases) or simply for chronic cough (1 case). In all three cases, the diagnosis was suspected because of irregularities of the tracheal or bronchial wall with calcification seen on imaging and confirmed at bronchoscopy with biopsy specimens. No specific therapy was initiated in these patients except for the treatment of associated complications or comorbidities. CONCLUSION OCTB is a benign pathology which can lead to bronchial symptoms ranging from mild cough to severe airway obstruction due to tracheobronchial stenosis. A key to diagnosis, limiting non-essential examinations and biopsies, is to consider OCTB based on CT scan or bronchoscopy based on irregularities of the tracheal or bronchial wall with calcification.
Collapse
Affiliation(s)
- M Ferreira
- Service de pneumologie et d'explorations fonctionnels respiratoires, centre hospitalier universitaire de Tours, 37000 Tours, France.
| | - H Morel
- Service de pneumologie et d'oncologie thoracique, centre hospitalier Régional d'Orléans, 45067 Orléans, France
| | - A Dixmier
- Service de pneumologie et d'oncologie thoracique, centre hospitalier Régional d'Orléans, 45067 Orléans, France
| | - F Arbion
- Service d'anatomie et cytologie pathologiques, centre hospitalier universitaire de Tours, 37000 Tours, France
| | - S Marchand-Adam
- Service de pneumologie et d'explorations fonctionnels respiratoires, centre hospitalier universitaire de Tours, 37000 Tours, France; Inserm U1100, faculté de médecine de Tours, université François Rabelais, 37000 Tours, France
| |
Collapse
|
46
|
Simsek-Kiper PO, Kosukcu C, Akgun-Dogan O, Gocmen R, Utine GE, Soyer T, Korkmaz-Toygar A, Nishimura G, Alikasifoglu M, Boduroglu K. A novel NKX3-2 mutation associated with perinatal lethal phenotype of spondylo-megaepiphyseal-metaphyseal dysplasia in a neonate. Eur J Med Genet 2018; 62:21-26. [PMID: 29704686 DOI: 10.1016/j.ejmg.2018.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 07/07/2017] [Revised: 04/11/2018] [Accepted: 04/22/2018] [Indexed: 11/19/2022]
Abstract
Spondylo-megaepiphyseal-metaphyseal dysplasia (SMMD) is an autosomal recessive skeletal dysplasia, characterized by disproportionate short stature with a short and stiff neck and trunk. SMMD is caused by inactivating mutations in NKX3-2, which encodes a homeobox-containing protein. Because of the rarity of the disorder, the diagnostic feature has not been fully established yet. We describe an affected newborn with dysmorphic facial features and severe short trunk. The patient required immediate intubation at the delivery room and duodenal atresia was detected during his course in neonatal intensive care unit. Skeletal survey revealed total absence of the ossification of the vertebral bodies, pubis, and ischia. Mainly the femora was short and broad with mild flaring of the metaphyses. The downward sloping or tented appearance of the ribs was distinctive. A diagnosis of SMMD was made on clinical and radiological grounds. Molecular analysis revealed homozygosity for a novel mutation, c.507-508delCA (p.Gly171Cysfs*55) in exon 2 of NKX3-2. The patient was operated on postnatal day 7 for duodenal atresia. In the post-operative period he developed sepsis and respiratory failure and he died on postnatal day 14. Although no neuroradiologic imaging could be performed, the findings of clubfoot, neuromuscular respiratory insufficiency requiring invasive mechanical ventilation and downward sloping or tented appearance of the ribs were suggestive of very early cervical cord compression leading to perinatal mortality. To our knowledge this patient yet represents one of the most severe postnatal phenotypes of SMMD.
Collapse
Affiliation(s)
- Pelin Ozlem Simsek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.
| | - Can Kosukcu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Bioinformatics, Institute of Health Sciences, Hacettepe University, Ankara, Turkey
| | - Ozlem Akgun-Dogan
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Rahsan Gocmen
- Department of Radiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gulen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Tutku Soyer
- Department of Pediatric Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ayse Korkmaz-Toygar
- Division of Neonatalogy, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey; Division of Neonatalogy, Department of Pediatrics, Acıbadem University Faculty of Medicine, Istanbul, Turkey
| | - Gen Nishimura
- Department of Radiology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Mehmet Alikasifoglu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroglu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey; Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| |
Collapse
|
47
|
Umair M, Eckstein G, Rudolph G, Strom T, Graf E, Hendig D, Hoover J, Alanay J, Meitinger T, Schmidt H, Ahmad W. Homozygous XYLT2 variants as a cause of spondyloocular syndrome. Clin Genet 2018; 93:913-918. [PMID: 29136277 DOI: 10.1111/cge.13179] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 07/03/2017] [Revised: 10/27/2017] [Accepted: 10/29/2017] [Indexed: 12/20/2022]
Abstract
Spondyloocular syndrome (SOS) is a rare autosomal recessive, skeletal disorder. Two recent studies have shown that it is the result of biallelic sequence variants in the XYLT2 gene with pleiotropic effects in multiple organs, including retina, heart muscle, inner ear, cartilage, and bone. The XYLT2 gene encodes xylosyltransferase 2, which catalyzes the transfer of xylose (monosaccharide) to the core protein of proteoglycans (PGs) leading to initiating the process of PG assembly. SOS was originally characterized in 2 families A and B of Iraqi and Turkish origin, respectively. Using DNA from affected members of the same 2 families, we performed whole exome sequencing, which revealed 2 novel homozygous missense variants (c.1159C > T, p.Arg387Trp) and (c.2548G > C, p.Asp850His). Our findings extend the body of evidence that SOS is caused by homozygous variants in the XYLT2 gene. In addition, this report has extended the phenotypic description of SOS by adding follow-up data from 5 affected individuals in one of the two families, presented here.
Collapse
Affiliation(s)
- M Umair
- Institute of Human Genetics, Helmholtz Zentrum Munchen, Neuherberg, Germany
- Institute of Human Genetics, Technische Universitat, Munchen, Germany
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - G Eckstein
- Institute of Human Genetics, Helmholtz Zentrum Munchen, Neuherberg, Germany
| | - G Rudolph
- University Eye Hospital, Ludwig Maximilians University, Munich, Germany
| | - T Strom
- Institute of Human Genetics, Helmholtz Zentrum Munchen, Neuherberg, Germany
| | - E Graf
- Institute of Human Genetics, Helmholtz Zentrum Munchen, Neuherberg, Germany
| | - D Hendig
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes, Center North Rhine-Westphalia, University Hospital of the Ruhr University, Ruhr, Germany
| | - J Hoover
- University Children's Hospital, Division of Endocrinology and Diabetology, Munich, Germany
| | - J Alanay
- Institute of Human Genetics, Technische Universitat, Munchen, Germany
| | - T Meitinger
- Institute of Human Genetics, Helmholtz Zentrum Munchen, Neuherberg, Germany
- Institute of Human Genetics, Technische Universitat, Munchen, Germany
| | - H Schmidt
- University Eye Hospital, Ludwig Maximilians University, Munich, Germany
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| |
Collapse
|
48
|
Abstract
Sclerosteosis and van Buchem disease (VBD) are two rare autosomal recessive disorders that results from osteoblast hyperactivity, in which progressive bone overgrowth leads to very dense bones, distortion of the face, and entrapment of cranial nerves. Sclerosteosis is caused by loss-of-function mutations in the SOST gene which encodes a secreted glycoprotein, sclerostin. VBD is caused by a noncoding deletion that removes a SOST-specific regulatory element in bone. In bone, SOST is expressed predominantly by osteocytes and sclerostin suppresses bone formation by inhibiting the canonical Wnt signaling pathway. Here we describe how human genetics studies in sclerosteosis and VBD patients, in combination with the generation of transgenic and knockout mice, has led to a better understanding of the role of sclerostin in bone metabolism.
Collapse
Affiliation(s)
- Aimy Sebastian
- Biology and Biotechnology Division, Lawrence Livermore National Laboratory, 7000 East Avenue, L-452, Livermore, CA 94550, USA
| | - Gabriela G Loots
- Biology and Biotechnology Division, Lawrence Livermore National Laboratory, 7000 East Avenue, L-452, Livermore, CA 94550, USA; School of Natural Sciences, University of California, Merced, CA 95343, USA.
| |
Collapse
|
49
|
Oyanagi K, Kinoshita M, Suzuki‐Kouyama E, Inoue T, Nakahara A, Tokiwai M, Arai N, Satoh J, Aoki N, Jinnai K, Yazawa I, Arai K, Ishihara K, Kawamura M, Ishizawa K, Hasegawa K, Yagisita S, Amano N, Yoshida K, Terada S, Yoshida M, Akiyama H, Mitsuyama Y, Ikeda S. Adult onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) and Nasu-Hakola disease: lesion staging and dynamic changes of axons and microglial subsets. Brain Pathol 2017; 27:748-769. [PMID: 27608278 PMCID: PMC8029200 DOI: 10.1111/bpa.12443] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 03/04/2016] [Accepted: 08/23/2016] [Indexed: 12/13/2022] Open
Abstract
The brains of 10 Japanese patients with adult onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) encompassing hereditary diffuse leukoencephalopathy with axonal spheroids (HDLS) and pigmentary orthochromatic leukodystrophy (POLD) and eight Japanese patients with Nasu-Hakola disease (N-HD) and five age-matched Japanese controls were examined neuropathologically with special reference to lesion staging and dynamic changes of microglial subsets. In both diseases, the pathognomonic neuropathological features included spherically swollen axons (spheroids and globules), axon loss and changes of microglia in the white matter. In ALSP, four lesion stages based on the degree of axon loss were discernible: Stage I, patchy axon loss in the cerebral white matter without atrophy; Stage II, large patchy areas of axon loss with slight atrophy of the cerebral white matter and slight dilatation of the lateral ventricles; Stage III, extensive axon loss in the cerebral white matter and dilatation of the lateral and third ventricles without remarkable axon loss in the brainstem and cerebellum; Stage IV, devastated cerebral white matter with marked dilatation of the ventricles and axon loss in the brainstem and/or cerebellum. Internal capsule and pontine base were relatively well preserved in the N-HD, even at Stage IV, and the swollen axons were larger with a higher density in the ALSP. Microglial cells immunopositive for CD68, CD163 or CD204 were far more obvious in ALSP, than in N-HD, and the shape and density of the cells changed in each stage. With progression of the stage, clinical symptoms became worse to apathetic state, and epilepsy was frequently observed in patients at Stages III and IV in both diseases. From these findings, it is concluded that (i) shape, density and subsets of microglia change dynamically along the passage of stages and (ii) increase of IBA-1-, CD68-, CD163- and CD204-immunopositive cells precedes loss of axons in ALSP.
Collapse
Affiliation(s)
- Kiyomitsu Oyanagi
- Division of Neuropathology, Department of Brain Disease ResearchShinshu University School of MedicineNaganoJapan
- Brain Research LaboratoryHatsuishi HospitalChibaJapan
| | | | - Emi Suzuki‐Kouyama
- Division of Neuropathology, Department of Brain Disease ResearchShinshu University School of MedicineNaganoJapan
| | | | - Asa Nakahara
- Division of Neuropathology, Department of Brain Disease ResearchShinshu University School of MedicineNaganoJapan
- Department of PathologyBrain Research Institute, Niigata UniversityNiigataJapan
| | - Mika Tokiwai
- Division of Neuropathology, Department of Brain Disease ResearchShinshu University School of MedicineNaganoJapan
- Present address:
Present address of Mika Tokiwai: Department of Laboratory MedicineShinshu University HospitalNaganoJapan
| | - Nobutaka Arai
- Tokyo Metropolitan Institute of Medical ScienceTokyoJapan
| | - Jun‐ichi Satoh
- Department of Bioinfomatics and Molecular NeuropathologyMeiji Pharmaceutical UniversityTokyoJapan
| | - Naoya Aoki
- Tokyo Metropolitan Institute of Medical ScienceTokyoJapan
- Psychiatric CenterYokohama City University Medical CenterKanagawaJapan
| | - Kenji Jinnai
- Department of NeurologyNational Hospital Organization Hyogo‐Chuo‐HospitalHyogoJapan
| | - Ikuru Yazawa
- Laboratory of Research ResourcesResearch Institute, National Center for Geriatrics and GerontologyAichiJapan
| | - Kimihito Arai
- Department of NeurologyNational Hospital Organization Chiba‐East HospitalChibaJapan
| | - Kenji Ishihara
- Department of NeurologyShowa University School of MedicineTokyoJapan
- Department of Internal MedicineUshioda General HospitalKanagawaJapan
| | - Mitsuru Kawamura
- Department of NeurologyShowa University School of MedicineTokyoJapan
| | - Keisuke Ishizawa
- Departments of Neurology and PathologySaitama Medical UniversitySaitamaJapan
| | - Kazuko Hasegawa
- Department of NeurologySagamihara National HospitalKanagawaJapan
| | | | - Naoji Amano
- Department of Psychiatry, Shinshu University School of Medicine, Nagano, Japan
- Present address:
Present address of Naoji Amano: Okaya Municipal HospitalNaganoJapan
| | - Kunihiro Yoshida
- Division of Neurogenetics, Department of Brain Disease ResearchShinshu University School of MedicineNaganoJapan
| | - Seishi Terada
- Department of NeuropsychiatryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Mari Yoshida
- Department of NeuropathologyInstitute for Medical Science of Aging, Aichi Medical UniversityAichiJapan
| | | | | | - Shu‐ichi Ikeda
- Department of Medicine (Neurology and Rheumatology)Shinshu University School of MedicineNaganoJapan
| |
Collapse
|
50
|
Bernkopf M, Hunt D, Koelling N, Morgan T, Collins AL, Fairhurst J, Robertson SP, Douglas AGL, Goriely A. Quantification of transmission risk in a male patient with a FLNB mosaic mutation causing Larsen syndrome: Implications for genetic counseling in postzygotic mosaicism cases. Hum Mutat 2017; 38:1360-1364. [PMID: 28639312 PMCID: PMC5638069 DOI: 10.1002/humu.23281] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/31/2017] [Accepted: 06/11/2017] [Indexed: 02/04/2023]
Abstract
We report the case of a male patient with Larsen syndrome found to be mosaic for a novel point mutation in FLNB in whom it was possible to provide evidence-based personalized counseling on transmission risk to future offspring. Using dideoxy sequencing, a low-level FLNB c.698A>G, encoding p.(Tyr233Cys) mutation was detected in buccal mucosa and fibroblast DNA. Mutation quantification was performed by deep next-generation sequencing (NGS) of DNA extracted from three somatic tissues (blood, fibroblasts, saliva) and a sperm sample. The mutation was detectable in all tissues tested, at levels ranging from 7% to 10% (mutation present in ∼20% of diploid somatic cells and 7% of haploid sperm), demonstrating the involvement of both somatic and gonadal lineages in this patient. This report illustrates the clinical utility of performing targeted NGS analysis on sperm from males with a mosaic condition in order to provide personalized transmission risk and offer evidence-based counseling on reproductive safety.
Collapse
Affiliation(s)
- Marie Bernkopf
- Clinical Genetics GroupMRC Weatherall Institute of Molecular MedicineUniversity of OxfordOxfordUnited Kingdom
- Nuffield Department of Clinical SciencesRadcliffe Department of MedicineUniversity of OxfordOxfordUnited Kingdom
| | - David Hunt
- Wessex Clinical Genetics ServiceUniversity Hospital Southampton NHS Foundation TrustSouthamptonUnited Kingdom
| | - Nils Koelling
- Clinical Genetics GroupMRC Weatherall Institute of Molecular MedicineUniversity of OxfordOxfordUnited Kingdom
- Nuffield Department of Clinical SciencesRadcliffe Department of MedicineUniversity of OxfordOxfordUnited Kingdom
| | - Tim Morgan
- Department of Women's and Children's HealthDunedin School of MedicineUniversity of OtagoDunedinNew Zealand
| | - Amanda L. Collins
- Wessex Clinical Genetics ServiceUniversity Hospital Southampton NHS Foundation TrustSouthamptonUnited Kingdom
| | - Joanna Fairhurst
- Paediatric RadiologyUniversity Hospital Southampton NHS Foundation TrustSouthamptonUnited Kingdom
| | - Stephen P. Robertson
- Department of Women's and Children's HealthDunedin School of MedicineUniversity of OtagoDunedinNew Zealand
| | - Andrew G. L. Douglas
- Wessex Clinical Genetics ServiceUniversity Hospital Southampton NHS Foundation TrustSouthamptonUnited Kingdom
- Academic Unit of Human Development and Health, Faculty of MedicineUniversity of SouthamptonSouthamptonUnited Kingdom
| | - Anne Goriely
- Clinical Genetics GroupMRC Weatherall Institute of Molecular MedicineUniversity of OxfordOxfordUnited Kingdom
- Nuffield Department of Clinical SciencesRadcliffe Department of MedicineUniversity of OxfordOxfordUnited Kingdom
| |
Collapse
|