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Zhu J, Li W, Yu S, Lu W, Xu Q, Wang S, Qian Y, Guo Q, Xu S, Wang Y, Zhang P, Zhao X, Ni Q, Liu R, Li X, Wu B, Zhou S, Wang H. Further delineation of EBF3-related syndromic neurodevelopmental disorder in twelve Chinese patients. Front Pediatr 2023; 11:1091532. [PMID: 36937983 PMCID: PMC10020332 DOI: 10.3389/fped.2023.1091532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
Neurodevelopmental disorders (NDDs) have heterogeneity in both clinical characteristics and genetic factors. EBF3 is a recently discovered gene associated with a syndromic form of NDDs characterized by hypotonia, ataxia and facial features. In this study, we report twelve unrelated individuals with EBF3 variants using next-generation sequencing. Five missense variants (four novel variants and one known variant) and seven copy number variations (CNVs) of EBF3 gene were identified. All of these patients exhibited developmental delay/intellectual disability. Ataxia was observed in 33% (6/9) of the patients, and abnormal muscle tone was observed in 55% (6/11) of the patients. Aberrant MRI reports were noted in 64% (7/11) of the patients. Four novel missense variants were all located in the DNA-binding domain. The pathogenicity of these variants was validated by in vitro experiments. We found that the subcellular protein localization of the R152C and F211L mutants was changed, and the distribution pattern of the R163G mutant was changed from even to granular. Luciferase assay results showed that the four EBF3 mutants' transcriptional activities were all significantly decreased (p < 0.01). Our study further expanded the gene mutation spectrum of EBF3-related NDD.
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Affiliation(s)
- Jitao Zhu
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Wenhui Li
- Neurology Department, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Sha Yu
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Wei Lu
- Department of Endocrinology and Inherited Metabolic Diseases, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Qiong Xu
- Department of Child Health Care, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Sujuan Wang
- Department of Rehabilitation, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Yanyan Qian
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Qiufang Guo
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Suzhen Xu
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Yao Wang
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Ping Zhang
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Xuemei Zhao
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Qi Ni
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Renchao Liu
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Xu Li
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Correspondence: Bingbing Wu Shuizhen Zhou Huijun Wang
| | - Shuizhen Zhou
- Neurology Department, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Correspondence: Bingbing Wu Shuizhen Zhou Huijun Wang
| | - Huijun Wang
- Center for Molecular Medicine, Pediatrics Research Institute, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Correspondence: Bingbing Wu Shuizhen Zhou Huijun Wang
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Pruccoli J, Graziano C, Locatelli C, Maltoni L, Sheikh Maye HA, Cordelli DM. Expanding the Neurological Phenotype of Ring Chromosome 10 Syndrome: A Case Report and Review of the Literature. Genes (Basel) 2021; 12:genes12101513. [PMID: 34680908 PMCID: PMC8535287 DOI: 10.3390/genes12101513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/05/2022] Open
Abstract
Ring chromosome 10 [r(10)] syndrome is a rare genetic condition, currently described in the medical literature in a small number of case report studies. Typical clinical features include microcephaly, short stature, facial dysmorphisms, ophthalmologic abnormalities and genitourinary malformations. We report a novel case of r(10) syndrome and review the neurological and neuroradiological phenotypes of the previously described cases. Our patient, a 3 year old Italian girl, represents the 20th case of r(10) syndrome described to date. Intellectual disability/developmental delay (ID/DD), microcephaly, strabismus, hypotonia, stereotyped/aggressive behaviors and electroencephalographic abnormalities were identified in our patient, and in a series of previous cases. A brain MRI disclosed a complex malformation involving both the vermis and cerebellar hemispheres; in the literature, posterior cranial fossa abnormalities were documented by CT scan in another case. Two genes deleted in our case (ZMYND11 in 10p and EBF3 in 10q) are involved in autosomal dominant neurodevelopmental disorders, characterized by different expressions of brain and posterior cranial fossa abnormalities, ID/DD, hypotonia and behavioral problems. Our case expands the neurological and neuroradiological phenotype of r(10) syndrome. Although r(10) syndrome represents an extremely rare condition, with a clinical characterization limited to case reports, the recurrence of specific neurological and neuroradiological features suggests the need for specific genotype-phenotype studies.
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Affiliation(s)
- Jacopo Pruccoli
- Child Neurology and Psychiatry Unit, IRCCS Istituto delle Scienze Neurologiche di Bologna, 40138 Bologna, Italy;
- Dipartimento di Scienze Mediche E Chirurgiche (DIMEC), University of Bologna, 40138 Bologna, Italy
| | - Claudio Graziano
- UO Genetica Medica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Chiara Locatelli
- Neonatal Intensive Care Unit, S.Orsola Malpighi Hospital, 40138 Bologna, Italy;
| | - Lucia Maltoni
- Child Neurology and Psychiatry Unit, Azienda USL della Romagna, 48121 Ravenna, Italy;
| | - Hodman Ahmed Sheikh Maye
- IRCCS Istituto Delle Scienze Neurologiche di Bologna, UOC Neuroradiologia, 40139 Bologna, Italy;
| | - Duccio Maria Cordelli
- Child Neurology and Psychiatry Unit, IRCCS Istituto delle Scienze Neurologiche di Bologna, 40138 Bologna, Italy;
- Dipartimento di Scienze Mediche E Chirurgiche (DIMEC), University of Bologna, 40138 Bologna, Italy
- Correspondence:
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Chromosomal Microarray Analysis Has a Poor Diagnostic Yield in Children with Developmental Delay/Intellectual Disability When Concurrent Cerebellar Anomalies Are Present. THE CEREBELLUM 2021; 19:629-635. [PMID: 32472476 DOI: 10.1007/s12311-020-01145-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Chromosomal microarray analysis is commonly used as screening test for children with neurodevelopmental issues, also in case of complex neurological phenotypes. Developmental delay/intellectual disability is a common presentation sign in pediatric ataxias, diseases with high clinical and genetic heterogeneity. In order to determine the diagnostic yield of Array-CGH in such conditions, all the tests performed in the last 10-year activity of a single referral center in children who present, besides the neurodevelopmental impairment, cerebellar abnormalities have been systematically gathered. The study demonstrates that, except for Dandy-Walker malformation or poly-malformative phenotypes, chromosomal microarray analysis should be discouraged as first-line diagnostic test in pediatric ataxias with neurodevelopmental disability.
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Fecundity in an infertile man with r(15) – a challenge to the current paradigm. Reprod Biomed Online 2018; 36:210-218. [DOI: 10.1016/j.rbmo.2017.10.115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 12/16/2022]
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Stambolliu E, Ioakeim-Ioannidou M, Kontokostas K, Dakoutrou M, Kousoulis AA. The Most Common Comorbidities in Dandy-Walker Syndrome Patients: A Systematic Review of Case Reports. J Child Neurol 2017. [PMID: 28635420 DOI: 10.1177/0883073817712589] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Dandy-Walker syndrome (DWS) is a rare neurologic multi-entity malformation. This review aimed at reporting its main nonneurologic comorbidities. METHODS Following PRISMA guidelines, search in Medline was conducted (2000-2014, keyword: dandy-walker). Age, sex, country, DWS type, consanguinity or siblings with DWS, and recorded coexistent conditions (by ICD10 category) were extracted for 187 patients (46.5% male, 43% from Asia) from 168 case reports. RESULTS Diagnosis was most often set in <1 year old (40.6%) or >12 years old (27.8%). One-third of cases had a chromosomal abnormality or syndrome (n = 8 PHACE), 27% had a cardiovascular condition (n = 7 Patent Ductus Arteriosus), 24% had a disease of eye and ear (n = 9 cataract); most common malignancy was nephroblastoma (n = 8, all Asian). Almost one-fifth had a mental illness diagnosis; only 6.4% had mild or severe intellectual disability. CONCLUSION The spread of comorbidities calls for early diagnosis and multidisciplinary research and practice, especially as many cases remain clinically asymptomatic for years.
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Affiliation(s)
- Emelina Stambolliu
- 1 Society of Junior Doctors, Athens, Greece.,2 Department of Internal Medicine, General Hospital of Kalavryta, Kalavryta, Greece
| | | | | | - Maria Dakoutrou
- 1 Society of Junior Doctors, Athens, Greece.,5 First Department of Paediatrics, "Aghia Sophia" Children's Hospital, University of Athens, Greece
| | - Antonis A Kousoulis
- 1 Society of Junior Doctors, Athens, Greece.,6 Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
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Zhang K, Song F, Zhang D, Liu Y, Zhang H, Wang Y, Dong R, Zhang Y, Liu Y, Gai Z. Chromosome r(3)(p25.3q29) in a Patient with Developmental Delay and Congenital Heart Defects: A Case Report and a Brief Literature Review. Cytogenet Genome Res 2016; 148:6-13. [PMID: 27077748 DOI: 10.1159/000445273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 11/19/2022] Open
Abstract
Ring chromosome 3, r(3), is an extremely rare cytogenetic abnormality with clinical heterogeneity and only 12 cases reported in the literature. Here, we report a 1-year-old girl presenting distinctive facial features, developmental delay, and congenital heart defects with r(3) and a ∼10-Mb deletion of chromosome 3pterp25.3 (61,891-9,979,408) involving 42 known genes which was detected using G-banding karyotyping and CytoScan 750K-Array. The breakpoints in r(3) were mapped at 3p25.3 and 3q29. We also analyzed the available information on the clinical features of the reported cases with r(3) and 3p deletion syndrome in order to provide more valuable information of genotype-phenotype correlations. To our knowledge, this is the largest detected fragment described in r(3) cases and the second r(3) study using whole-genome microarray.
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Affiliation(s)
- Kaihui Zhang
- Pediatric Research Institute, Qilu Children's Hospital of Shandong University, Jinan, China
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De Novo ring chromosome 11 and non-reciprocal translocation of 11p15.3-pter to 21qter in a patient with congenital heart disease. Mol Cytogenet 2015; 8:88. [PMID: 26557157 PMCID: PMC4638084 DOI: 10.1186/s13039-015-0191-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 10/28/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ring chromosome 11[r (11)] is a rare chromosomal abnormality that forms when both arms of chromosome 11 break, and then reunite with each other. Once a ring chromosome forms, the distal ends of both arms of the chromosome are usually lost. CASE PRESENTATION We reported a 12 years old girl patient with congenital heart disease and distinctive facial features. Cytogenetic and molecular analyses using standard G-banding, fluorescence in situ hybridization and Single nucleotide polymorphism array were performed to identify genetic causes in the patient. The patient carried r(11)(p15.3q24.1) and 11p15.3-pter non-reciprocal translocation to 21qter, accompanied with 8.9 Mb deletion of 11q24.2q25. A literature review was performed to establish genotype-phenotype correlations of the r (11) and 11q terminal deletion syndrome. CONCLUSIONS To the best of our knowledge, this is the first case of non-reciprocal translocation with a terminal deletion in r (11). These findings provide important information for genetic counseling for this family, and may improve our understanding of the genotype-phenotype correlation of ring chromosome 11 disorders.
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Čiuladaitė Ž, Burnytė B, Vansevičiūtė D, Dagytė E, Kučinskas V, Utkus A. Clinical, cytogenetic and molecular study of a case of ring chromosome 10. Mol Cytogenet 2015; 8:29. [PMID: 25922618 PMCID: PMC4411697 DOI: 10.1186/s13039-015-0124-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 02/28/2015] [Indexed: 01/17/2023] Open
Abstract
Ring chromosome 10 is a rare cytogenetic finding. Only a few cases with molecular cytogenetic definition have been reported. We report here on a child with a ring chromosome 10, which is associated with prenatal and postnatal growth retardation, microcephaly, dysmorphic features, hypotonia, heart defect, severe pes equinovarus, and bronchial asthma. The chromosomal aberration was defined by chromosome microarray analysis, which revealed two deletions at 10pter (3.68 Mb) and 10qter (4.26 Mb). The clinical features are very similar to those reported in other clinical cases with ring chromosome 10, excluding bronchial asthma, which has not been previously reported in individuals with ring chromosome 10.
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Affiliation(s)
- Živilė Čiuladaitė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University, Santariškių st. 2, LT-08661 Vilnius, Lithuania ; Centre for Medical Genetics, Vilnius University Hospital Santariki Klinikos, Vilnius, Lithuania
| | - Birutė Burnytė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University, Santariškių st. 2, LT-08661 Vilnius, Lithuania ; Centre for Medical Genetics, Vilnius University Hospital Santariki Klinikos, Vilnius, Lithuania
| | - Danutė Vansevičiūtė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University, Santariškių st. 2, LT-08661 Vilnius, Lithuania
| | - Evelina Dagytė
- Centre for Medical Genetics, Vilnius University Hospital Santariki Klinikos, Vilnius, Lithuania
| | - Vaidutis Kučinskas
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University, Santariškių st. 2, LT-08661 Vilnius, Lithuania ; Centre for Medical Genetics, Vilnius University Hospital Santariki Klinikos, Vilnius, Lithuania
| | - Algirdas Utkus
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University, Santariškių st. 2, LT-08661 Vilnius, Lithuania ; Centre for Medical Genetics, Vilnius University Hospital Santariki Klinikos, Vilnius, Lithuania
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