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Altunoglu U, Palencia-Campos A, Güneş N, Turgut GT, Nevado J, Lapunzina P, Valencia M, Iturrate A, Otaify G, Elhossini R, Ashour A, K Amin A, Elnahas RF, Fernandez-Nuñez E, Flores CL, Arias P, Tenorio J, Chamorro Fernández CI, Güven Y, Özsu E, Eklioğlu BS, Ibarra-Ramirez M, Diness BR, Burnyte B, Ajmi H, Yüksel Z, Yıldırım R, Ünal E, Abdalla E, Aglan M, Kayserili H, Tuysuz B, Ruiz-Pérez V. Variant characterisation and clinical profile in a large cohort of patients with Ellis-van Creveld syndrome and a family with Weyers acrofacial dysostosis. J Med Genet 2024; 61:633-644. [PMID: 38531627 DOI: 10.1136/jmg-2023-109546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 03/12/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Ellis-van Creveld syndrome (EvC) is a recessive disorder characterised by acromesomelic limb shortening, postaxial polydactyly, nail-teeth dysplasia and congenital cardiac defects, primarily caused by pathogenic variants in EVC or EVC2. Weyers acrofacial dysostosis (WAD) is an ultra-rare dominant condition allelic to EvC. The present work aimed to enhance current knowledge on the clinical manifestations of EvC and WAD and broaden their mutational spectrum. METHODS We conducted molecular studies in 46 individuals from 43 unrelated families with a preliminary clinical diagnosis of EvC and 3 affected individuals from a family with WAD and retrospectively analysed clinical data. The deleterious effect of selected variants of uncertain significance was evaluated by cellular assays. MAIN RESULTS We identified pathogenic variants in EVC/EVC2 in affected individuals from 41 of the 43 families with EvC. Patients from each of the two remaining families were found with a homozygous splicing variant in WDR35 and a de novo heterozygous frameshift variant in GLI3, respectively. The phenotype of these patients showed a remarkable overlap with EvC. A novel EVC2 C-terminal truncating variant was identified in the family with WAD. Deep phenotyping of the cohort recapitulated 'classical EvC findings' in the literature and highlighted findings previously undescribed or rarely described as part of EvC. CONCLUSIONS This study presents the largest cohort of living patients with EvC to date, contributing to better understanding of the full clinical spectrum of EvC. We also provide comprehensive information on the EVC/EVC2 mutational landscape and add GLI3 to the list of genes associated with EvC-like phenotypes.
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Affiliation(s)
- Umut Altunoglu
- Medical Genetics Department, School of Medicine (KUSoM), Koç University, Istanbul, Turkey
- Medical Genetics Department, Istanbul Faculty of Medicine, Istanbul University, Fatih, Turkey
| | - Adrian Palencia-Campos
- Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Nilay Güneş
- Cerrahpasa Medical Faculty, Department of Pediatric Genetics, Istanbul Universitesi-Cerrahpasa, Istanbul, Turkey
| | - Gozde Tutku Turgut
- Medical Genetics Department, Istanbul Faculty of Medicine, Istanbul University, Fatih, Turkey
| | - Julian Nevado
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Genética Médica y Molecular (INGEMM), ITHACA-ERN, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
| | - Pablo Lapunzina
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Genética Médica y Molecular (INGEMM), ITHACA-ERN, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
| | - Maria Valencia
- Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
| | - Asier Iturrate
- Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Ghada Otaify
- Department of Clinical Genetics, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
| | - Rasha Elhossini
- Department of Clinical Genetics, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
| | - Adel Ashour
- Department of Clinical Genetics, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
| | - Asmaa K Amin
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Rania F Elnahas
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Elisa Fernandez-Nuñez
- Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
| | - Carmen-Lisset Flores
- Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Pedro Arias
- Instituto de Genética Médica y Molecular (INGEMM), ITHACA-ERN, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
| | - Jair Tenorio
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Genética Médica y Molecular (INGEMM), ITHACA-ERN, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
| | | | - Yeliz Güven
- Department of Pedodontics, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Elif Özsu
- Department of Pediatric Endocrinology and Diabetes, School of Medicine, Ankara University, Ankara, Turkey
| | - Beray Selver Eklioğlu
- Division of Pediatric Endocrinology, Department of Pediatrics, Necmettin Erbakan University, Konya, Turkey
| | - Marisol Ibarra-Ramirez
- Departamento de Genética, Facultad de Medicina, Universidad Autónoma de Nuevo León, Nuevo Leon, Mexico
| | - Birgitte Rode Diness
- Department of Clinical Genetics, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health, University of Copenhagen, Kobenhavn, Denmark
| | - Birute Burnyte
- Department of Human and Medical Genetics, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Houda Ajmi
- Service de Pédiatrie, Centre Hôspitalier Universitaire (CHU) Sahloul, Sousse, Tunisia
| | - Zafer Yüksel
- Human Genetics Department, Bioscientia Healthcare GmbH, Ingelheim, Germany
| | - Ruken Yıldırım
- Department of Pediatric Endocrinology, Ministry of Health Diyarbakir Children's Hospital, Diyarbakir, Turkey
| | - Edip Ünal
- Department of Pediatric Endocrinology, Faculty of Medicine, Dicle University, Diyarbakir, Turkey
| | - Ebtesam Abdalla
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Mona Aglan
- Department of Clinical Genetics, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
| | - Hulya Kayserili
- Medical Genetics Department, School of Medicine (KUSoM), Koç University, Istanbul, Turkey
| | - Beyhan Tuysuz
- Cerrahpasa Medical Faculty, Department of Pediatric Genetics, Istanbul Universitesi-Cerrahpasa, Istanbul, Turkey
| | - Victor Ruiz-Pérez
- Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Genética Médica y Molecular (INGEMM), ITHACA-ERN, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
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2
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Chen Y, Bao Z, Yao F, Liu Y, Zhao B, Wu X. ChIP-Seq analysis reveals PRKACB as a target gene of HOXC13 involved in rabbit hair follicle development. Gene 2024; 893:147946. [PMID: 38381512 DOI: 10.1016/j.gene.2023.147946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/09/2023] [Accepted: 10/27/2023] [Indexed: 02/22/2024]
Abstract
Dermal papilla cells (DPCs) are key regulators of hair follicle (HF) development and growth, which not only regulate HF growth and cycling but play a role in the pathogenesis of hair loss. The transcription factor Homeobox C13 (HOXC13) can modulate the growth and development of HFs. Nevertheless, the specific genes and pathways regulated by HOXC13 in DPCs have yet to be determined. Thus, to gain a better understanding of genomic binding sites involved in HOXC13-regulated HF development, chromatin immunoprecipitation followed by high throughput sequencing (ChIP-Seq) was performed on rabbit DPCs with pcDNA3.1-3 × Flag-HOXC13 overexpression. A complete set of 9670 enrichment peaks was acquired by applying HOXC13-Flag ChIP. Subsequently, the peak sequence was annotated to the rabbit genome, revealing that 6.1 % of the peaks were identified within in the promoter region. Thereafter, five annotated genes were verified using RT-qPCR. The peak-associated genes were mainly enriched in signaling pathways related to HF development, such as MAPK and PI3K-Akt. Furthermore, by using a dual-luciferase reporter assay, we found that HOXC13 can target the protein kinase cAMP‑dependent catalytic β (PRKACB) promoter region (-1596 ∼ -1107 bp) and inhibit its transcription, which was consistent with data obtained from ChIP-seq analysis. Overexpression of PRKACB gene significantly modulated the expression of BCL2, WNT2, LEF1, and SFRP2 genes related to HF development as determined by RT-qPCR (P < 0.01, P < 0.05). The CCK-8 and flow cytometry assays showed that PRKACB significantly inhibited the proliferation of DPCs and promoted apoptosis (P < 0.01). In conclusion, our research revealed that PRKACB has the potential to serve as a novel target gene of HOXC13, contributing to the regulation of the proliferation and apoptosis of DPCs. The process of identifying global target genes can contribute to the understanding of the intricate pathways that HOXC13 regulates in the growth of HFs.
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Affiliation(s)
- Yang Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Zhiyuan Bao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Fan Yao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yan Liu
- Animal Husbandry and Veterinary Research Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China
| | - Bohao Zhao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Xinsheng Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
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Castilho NL, Resende KKM, dos Santos JA, Machado RA, Coletta RD, Guerra ENS, Acevedo AC, Martelli-Junior H. Oligodontia in the Clinical Spectrum of Syndromes: A Systematic Review. Dent J (Basel) 2023; 11:279. [PMID: 38132417 PMCID: PMC10742796 DOI: 10.3390/dj11120279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/11/2023] [Accepted: 11/17/2023] [Indexed: 12/23/2023] Open
Abstract
The aim of this systematic review was to describe the clinical and genetic features of syndromes showing oligodontia as a sign. The review was performed according to the PRISMA 2020 checklist guidelines, and the search was conducted using PubMed, Scopus, Lilacs, Web of science, Livivo, and EMBASE and supplemented by a gray literature search on Google Scholar and ProQuest, applying key terms relevant to the research questions. The systematic review identified 47 types of syndromes in 83 studies, and the most common was hypohidrotic ectodermal dysplasia, which was reported in 24 patients in 22 studies. Other common syndromes that reported oligodontia included Axenfeld-Rieger syndrome, Witkop's syndrome, Ellis-van Creveld syndrome, blepharocheilodontic syndrome, and oculofaciocardiodental syndrome. The X-linked mode of inheritance was the most reported (n = 13 studies), followed by the autosomal dominant (n = 13 studies). The review describes the main syndromes that may have oligodontia as a clinical sign and reinforces the need for orodental-facial examining for adequate diagnosis and treatment of the affected patients. Molecular analysis in order to better understand the occurrence of oligodontia is imperative.
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Affiliation(s)
- Natália Lopes Castilho
- Health Science Postgraduate Program, State University of Montes Claros, Montes Claros 39400-000, Brazil;
| | - Kêmelly Karolliny Moreira Resende
- Laboratory of Oral Histopathology, Oral Care Center for Inherited Diseases, Health Sciences Faculty, University of Brasilia, Brasilia 70040-010, Brazil; (K.K.M.R.); (E.N.S.G.); (A.C.A.)
| | - Juliana Amorim dos Santos
- Laboratory of Oral Histopathology, Health Sciences Faculty, University of Brasilia, Brasilia 70040-010, Brazil;
| | - Renato Assis Machado
- Department of Oral Diagnosis and Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba 13414-018, Brazil; (R.A.M.); (R.D.C.)
| | - Ricardo D. Coletta
- Department of Oral Diagnosis and Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba 13414-018, Brazil; (R.A.M.); (R.D.C.)
| | - Eliete Neves Silva Guerra
- Laboratory of Oral Histopathology, Oral Care Center for Inherited Diseases, Health Sciences Faculty, University of Brasilia, Brasilia 70040-010, Brazil; (K.K.M.R.); (E.N.S.G.); (A.C.A.)
| | - Ana Carolina Acevedo
- Laboratory of Oral Histopathology, Oral Care Center for Inherited Diseases, Health Sciences Faculty, University of Brasilia, Brasilia 70040-010, Brazil; (K.K.M.R.); (E.N.S.G.); (A.C.A.)
| | - Hercílio Martelli-Junior
- Health Science Postgraduate Program, State University of Montes Claros, Montes Claros 39400-000, Brazil;
- Oral Medicine and Oral Pathology, School of Dentistry, State University of Montes Claros, Unimontes, Montes Claros 39400-000, Brazil
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Li M, Ye B, Chen Y, Gao L, Wu Y, Cheng W. Analysis of genetic testing in fetuses with congenital heart disease of single atria and/or single ventricle in a Chinese prenatal cohort. BMC Pediatr 2023; 23:577. [PMID: 37980516 PMCID: PMC10656988 DOI: 10.1186/s12887-023-04382-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 10/23/2023] [Indexed: 11/20/2023] Open
Abstract
OBJECTIVE This study aimed to investigate the genetic etiologies of fetuses with single atria and/or ventricle (SA or/and SV) using different genetic detection methods in a Chinese prenatal cohort. METHODS In this retrospective study, the various genetic results of 44 fetuses with SA and/or SV were analyzed. All 44 cases were tested by chromosomal microarray analysis (CMA) and karyotyping simultaneously, and 8 underwent whole exome sequencing (WES). Data on the pregnancy outcomes and neonatal prognoses were collected from medical records and postnatal follow-up. RESULTS The whole cohort of 44 fetuses included 14 SA cases (31.8%), 12 SV cases (27.3%), and 18 SA and SV cases (40.9%). A total of 9 pathogenic genetic results were detected by conventional karyotyping, CMA and trio-WES, indicating an overall detection rate of 20.5% (9/44). Six pathogenic chromosomal abnormalities were identified by CMA among the 44 cases, showing a detection rate of 13.6% (6/44). Two microdeletions being missed by karyotyping were diagnosed by CMA, showing an additional diagnostic yield of 4.5% for CMA in present cohort(2/44). Three pathogenic variants in two fetuses were identified by WES, indicating an incremental diagnostic yield of 4.5%(2/44) for WES in fetuses with SA or/and SV. CONCLUSION In this study, WES achieved an additional diagnostic yield of 4.5% in fetuses with SA or/and SV. WES is valuable for fetal prognosis assessment and could add diagnostic value for fetuses with SA and/or SV when CMA is negative. It would be a valuable technique for the identification of underlying pathogenic variants in prenatal cohorts.
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Affiliation(s)
- Min Li
- Prenatal Diagnosis Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Baoying Ye
- Department of Ultrasonography, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yiyao Chen
- Department of Reproductive Genetics, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Gao
- Prenatal Diagnosis Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Wu
- Prenatal Diagnosis Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
- Shanghai Municipal Key Clinical Specialty, Shanghai, China.
| | - Weiwei Cheng
- Prenatal Diagnosis Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
- Shanghai Municipal Key Clinical Specialty, Shanghai, China.
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Zhang D, Zhang C, Zhu Y, Xie H, Yue C, Li M, Wei W, Peng Y, Yin G, Guo Y, Guan Y. Recruitment of transcription factor ETS1 to activated accessible regions promotes the transcriptional program of cilia genes. Nucleic Acids Res 2023:gkad506. [PMID: 37326025 PMCID: PMC10359609 DOI: 10.1093/nar/gkad506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 05/25/2023] [Accepted: 06/01/2023] [Indexed: 06/17/2023] Open
Abstract
Defects in cilia genes, which are critical for cilia formation and function, can cause complicated ciliopathy syndromes involving multiple organs and tissues; however, the underlying regulatory mechanisms of the networks of cilia genes in ciliopathies remain enigmatic. Herein, we have uncovered the genome-wide redistribution of accessible chromatin regions and extensive alterations of expression of cilia genes during Ellis-van Creveld syndrome (EVC) ciliopathy pathogenesis. Mechanistically, the distinct EVC ciliopathy-activated accessible regions (CAAs) are shown to positively regulate robust changes in flanking cilia genes, which are a key requirement for cilia transcription in response to developmental signals. Moreover, a single transcription factor, ETS1, can be recruited to CAAs, leading to prominent chromatin accessibility reconstruction in EVC ciliopathy patients. In zebrafish, the collapse of CAAs driven by ets1 suppression subsequently causes defective cilia proteins, resulting in body curvature and pericardial oedema. Our results depict a dynamic landscape of chromatin accessibility in EVC ciliopathy patients, and uncover an insightful role for ETS1 in controlling the global transcriptional program of cilia genes by reprogramming the widespread chromatin state.
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Affiliation(s)
- Donghui Zhang
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Chong Zhang
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Yanmei Zhu
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Haixia Xie
- Precision Clinical Laboratory, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Caifeng Yue
- Precision Clinical Laboratory, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
- Department of Laboratory Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Mingfeng Li
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Wenlu Wei
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Yu Peng
- Pediatric Intensive Care Unit Central, People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Guibin Yin
- Department of Orthopedics, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Yunmiao Guo
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
| | - Yiting Guan
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong Medical University Zhanjiang Central Hospital, Zhanjiang 524045, PR China
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Piceci-Sparascio F, Micale L, Torres B, Guida V, Consoli F, Torrente I, Onori A, Frustaci E, D'Asdia MC, Petrizzelli F, Bernardini L, Mancini C, Soli F, Cocciadiferro D, Guadagnolo D, Mastromoro G, Putotto C, Fontana F, Brunetti-Pierri N, Novelli A, Pizzuti A, Marino B, Digilio MC, Mazza T, Dallapiccola B, Ruiz-Perez VL, Tartaglia M, Castori M, De Luca A. Clinical variability in DYNC2H1-related skeletal ciliopathies includes Ellis-van Creveld syndrome. Eur J Hum Genet 2023; 31:479-484. [PMID: 36599940 PMCID: PMC10133340 DOI: 10.1038/s41431-022-01276-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/17/2022] [Accepted: 12/15/2022] [Indexed: 01/06/2023] Open
Abstract
Deleterious variants of DYNC2H1 gene are associated with a wide spectrum of skeletal ciliopathies (SC). We used targeted parallel sequencing to analyze 25 molecularly unsolved families with different SCs. Deleterious DYNC2H1 variants were found in six sporadic patients and two monozygotic (MZ) twins. Clinical diagnoses included short rib-polydactyly type 3 in two cases, and asphyxiating thoracic dystrophy (ATD) in one case. Remarkably, clinical diagnosis fitted with EvC, mixed ATD/EvC and short rib-polydactyly/EvC phenotypes in three sporadic patients and the MZ twins. EvC/EvC-like features always occurred in compound heterozygotes sharing a previously unreported splice site change (c.6140-5A>G) or compound heterozygotes for two missense variants. These results expand the DYNC2H1 mutational repertoire and its clinical spectrum, suggesting that EvC may be occasionally caused by DYNC2H1 variants presumably acting as hypomorphic alleles.
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Affiliation(s)
- Francesca Piceci-Sparascio
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Lucia Micale
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Barbara Torres
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Valentina Guida
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Federica Consoli
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Isabella Torrente
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Annamaria Onori
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Emanuela Frustaci
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Maria Cecilia D'Asdia
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Francesco Petrizzelli
- Laboratory of Bioinformatics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Laura Bernardini
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Cecilia Mancini
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Fiorenza Soli
- Medical Genetic Unit, Santa Chiara Hospital APSS, Trento, Italy
| | - Dario Cocciadiferro
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children Hospital and Research Institute, IRCCS, Rome, Italy
| | - Daniele Guadagnolo
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Gioia Mastromoro
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Carolina Putotto
- Department of Pediatrics, Obstetrics and Gynecology, "Sapienza" University of Rome, Rome, Italy
| | | | - Nicola Brunetti-Pierri
- Department of Translational Medicine, Section of Pediatrics, Federico II University, Naples, Italy
- Telethon Institute of Genetics and Medicine, Pozzuoli, Naples, Italy
| | - Antonio Novelli
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children Hospital and Research Institute, IRCCS, Rome, Italy
| | - Antonio Pizzuti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Bruno Marino
- Department of Pediatrics, Obstetrics and Gynecology, "Sapienza" University of Rome, Rome, Italy
| | - Maria Cristina Digilio
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Tommaso Mazza
- Laboratory of Bioinformatics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Bruno Dallapiccola
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Victor Luis Ruiz-Perez
- Instituto de Investigaciones Biomédicas 'Alberto Sols', CSIC-UAM, Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
- Instituto de Genética Médica y Molecular (INGEMM), Hospital Universitario La Paz-IdiPaz-UAM, Madrid, Spain
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Marco Castori
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Alessandro De Luca
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.
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