1
|
Dentici ML, Bergonzini P, Scibelli F, Caciolo C, De Rose P, Cumbo F, Alesi V, Capolino R, Zanni G, Sinibaldi L, Novelli A, Tartaglia M, Digilio MC, Dallapiccola B, Vicari S, Alfieri P. 7q11.23 Microduplication Syndrome: Clinical and Neurobehavioral Profiling. Brain Sci 2020; 10:E839. [PMID: 33187326 PMCID: PMC7697259 DOI: 10.3390/brainsci10110839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/03/2020] [Accepted: 11/06/2020] [Indexed: 11/20/2022] Open
Abstract
7q11.23 Microduplication (dup7q11.23) syndrome is a rare autosomal dominant disorder due to a recurring 1.5 to 1.8 Mb duplication of the Williams-Beuren Syndrome critical region. Dup7q11.23 has been associated with several neuro-behavioral characteristics such as low cognitive and adaptive functioning, expressive language impairment, anxiety problems and autistic features. In the present study, we analyze the clinical features of ten individuals in which array-CGH detected dup7q11.23, spanning from 1.4 to 2.1 Mb. The clinical characteristics associated with dup7q11.23 are discussed with respect to its reciprocal deletion. Consistent with previous studies, we confirm that individuals with dup7q11.23 syndrome do not have a homogeneous clinical profile, although some recurring dysmorphic features were found, including macrocephaly, prominent forehead, elongated palpebral fissures, thin lip vermilion and microstomia. Minor congenital malformations include patent ductus arteriosus, cryptorchidism and pes planus. A common finding is hypotonia and joint laxity, resulting in mild motor delay. Neuropsychological and psychodiagnostic assessment confirm that mild cognitive impairment, expressive language deficits and anxiety are recurring neurobehavioral features. New insights into adaptive, psychopathological and neurodevelopmental profiles are discussed.
Collapse
Affiliation(s)
- Maria Lisa Dentici
- Medical Genetic Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (M.L.D.); (R.C.); (L.S.); (M.C.D.)
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (G.Z.); (M.T.)
| | - Paola Bergonzini
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
| | - Francesco Scibelli
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
| | - Cristina Caciolo
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
| | - Paola De Rose
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
| | - Francesca Cumbo
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
| | - Viola Alesi
- Laboratory of Medical Genetics, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (V.A.); (A.N.)
| | - Rossella Capolino
- Medical Genetic Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (M.L.D.); (R.C.); (L.S.); (M.C.D.)
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (G.Z.); (M.T.)
| | - Ginevra Zanni
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (G.Z.); (M.T.)
- Unit of Neuromuscular and Neurodegenerative Disorders, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Lorenzo Sinibaldi
- Medical Genetic Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (M.L.D.); (R.C.); (L.S.); (M.C.D.)
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (G.Z.); (M.T.)
| | - Antonio Novelli
- Laboratory of Medical Genetics, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (V.A.); (A.N.)
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (G.Z.); (M.T.)
| | - Maria Cristina Digilio
- Medical Genetic Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (M.L.D.); (R.C.); (L.S.); (M.C.D.)
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (G.Z.); (M.T.)
| | - Bruno Dallapiccola
- Scientific Directorate, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Stefano Vicari
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
- Department of Life Sciences and Public Health, Catholic University, 00168 Rome, Italy
| | - Paolo Alfieri
- Child and Adolescent Neuropsychiatry Unit, Department of Neurological and Psychiatric Science, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (P.B.); (F.S.); (C.C.); (P.D.R.); (F.C.); (S.V.)
| |
Collapse
|
2
|
Yoon SH, Choi J, Lee WJ, Do JT. Genetic and Epigenetic Etiology Underlying Autism Spectrum Disorder. J Clin Med 2020; 9:E966. [PMID: 32244359 PMCID: PMC7230567 DOI: 10.3390/jcm9040966] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/28/2020] [Accepted: 03/28/2020] [Indexed: 12/19/2022] Open
Abstract
Autism spectrum disorder (ASD) is a pervasive neurodevelopmental disorder characterized by difficulties in social interaction, language development delays, repeated body movements, and markedly deteriorated activities and interests. Environmental factors, such as viral infection, parental age, and zinc deficiency, can be plausible contributors to ASD susceptibility. As ASD is highly heritable, genetic risk factors involved in neurodevelopment, neural communication, and social interaction provide important clues in explaining the etiology of ASD. Accumulated evidence also shows an important role of epigenetic factors, such as DNA methylation, histone modification, and noncoding RNA, in ASD etiology. In this review, we compiled the research published to date and described the genetic and epigenetic epidemiology together with environmental risk factors underlying the etiology of the different phenotypes of ASD.
Collapse
Affiliation(s)
| | | | | | - Jeong Tae Do
- Department of Stem Cell and Regenerative Biotechnology, KU Institute of Technology, Konkuk University, Seoul 05029, Korea; (S.H.Y.); (J.C.); (W.J.L.)
| |
Collapse
|
3
|
Cai M, Lin N, Su L, Wu X, Xie X, Li Y, Chen X, Lin Y, Huang H, Xu L. Copy number variations associated with fetal congenital kidney malformations. Mol Cytogenet 2020; 13:11. [PMID: 32211073 PMCID: PMC7092440 DOI: 10.1186/s13039-020-00481-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 03/17/2020] [Indexed: 01/19/2023] Open
Abstract
Background Congenital anomalies of the kidney and urinary tract (CAKUT) constitute 20–30% of all congenital malformations. Within the CAKUT phenotypic spectrum, renal hypodysplasia (RHD) is particularly severe. This study aimed to evaluate the applicability of single-nucleotide polymorphism (SNP) array test in prenatal diagnosis of RHD for improving prenatal genetic counseling and to search for evidence of a possible causative role of copy-number variations (CNVs) in RHD. Results We performed a systematic survey of CNV burden in 120 fetuses with RHD: 103 cases were isolated RHD and 17 were non-isolated RHD. Single-nucleotide polymorphism (SNP) array test was performed using the Affymetrix CytoScan HD platform. All annotated CNVs were validated by fluorescence in situ hybridization. We identified abnormal CNVs in 15 (12.5%) cases of RHD; of these CNVs, 11 were pathogenic and 4 were variants of uncertain significance. The detection rate of abnormal CNVs in non-isolated RHD was higher (29.4%, 5/17) than that in isolated RHD (9.7%, 10/103) (P = 0.060). Parents are more inclined to terminate the pregnancy if the fetuses have pathogenic results of the SNP-array test. Conclusions The variable phenotypes that abnormal CNVs may cause indicate the genetic counseling is needed for RHD cases.
Collapse
Affiliation(s)
- Meiying Cai
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Na Lin
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Linjuan Su
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Xiaoqing Wu
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Xiaorui Xie
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Ying Li
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Xuemei Chen
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Yuan Lin
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Hailong Huang
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Liangpu Xu
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, affiliated hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| |
Collapse
|
4
|
Cai M, Lin N, Su L, Wu X, Xie X, Li Y, Chen X, Dai Y, Lin Y, Huang H, Xu L. Detection of copy number disorders associated with congenital anomalies of the kidney and urinary tract in fetuses via single nucleotide polymorphism arrays. J Clin Lab Anal 2019; 34:e23025. [PMID: 31506986 PMCID: PMC6977156 DOI: 10.1002/jcla.23025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/11/2019] [Accepted: 08/12/2019] [Indexed: 12/17/2022] Open
Abstract
Background While congenital anomalies of the kidney and urinary tract (CAKUT) constitute one‐third of all congenital malformations, the mechanisms underlying their development are poorly understood. Some studies have reported an association between CAKUT and copy number variations (CNVs) in children and adults, but few have focused on chromosomal microarray analysis (CMA) findings in fetuses with CAKUT. Therefore, we aimed to perform a CMA on fetuses with CAKUT and normal karyotypes in the presence and absence of other structural anomalies. Method The study was conducted in 147 fetuses with CAKUT and normal karyotypes between January 2016 and January 2019 in the Fujian Provincial Maternal and Child Health Hospital. Single nucleotide polymorphism (SNP) analysis was performed using the Affymetrix CytoScan HD platform. Results The SNP array identified abnormal CNVs in 13 cases (8.8%): Six were pathogenic, and seven were variations of uncertain clinical significance (VOUS). The detection rate of abnormal CNVs in non‐isolated CAKUT was higher than that in isolated CAKUT (22.7% vs 6.4%, P = .038). Within the abnormal CNV groups, the highest frequency of CNVs was identified in fetuses with polycystic kidney dysplasia (13.5%), followed by those with renal agenesis (10.5%). Conclusion SNP array is effective for identifying chromosomal abnormalities in CNVs in fetuses with CAKUT and normal karyotypes, and help counseling.
Collapse
Affiliation(s)
- Meiying Cai
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Na Lin
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Linjuan Su
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Xiaoqing Wu
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Xiaorui Xie
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Ying Li
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Xuemei Chen
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Yifang Dai
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Yuan Lin
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Hailong Huang
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Liangpu Xu
- Department of the Prenatal Diagnosis Center, Fujian Provincial Maternity and Children's Hospital, Affiliated Hospital of Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| |
Collapse
|
5
|
Deurloo MHS, Turlova E, Chen WL, Lin YW, Tam E, Tassew NG, Wu M, Huang YC, Crawley JN, Monnier PP, Groffen AJA, Sun HS, Osborne LR, Feng ZP. Transcription Factor 2I Regulates Neuronal Development via TRPC3 in 7q11.23 Disorder Models. Mol Neurobiol 2018; 56:3313-3325. [PMID: 30120731 PMCID: PMC6477017 DOI: 10.1007/s12035-018-1290-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/31/2018] [Indexed: 12/24/2022]
Abstract
Williams syndrome (WS) and 7q11.23 duplication syndrome (Dup7q11.23) are neurodevelopmental disorders caused by the deletion and duplication, respectively, of ~ 25 protein-coding genes on chromosome 7q11.23. The general transcription factor 2I (GTF2I, protein TFII-I) is one of these proteins and has been implicated in the neurodevelopmental phenotypes of WS and Dup7q11.23. Here, we investigated the effect of copy number alterations in Gtf2i on neuronal maturation and intracellular calcium entry mechanisms known to be associated with this process. Mice with a single copy of Gtf2i (Gtf2i+/Del) had increased axonal outgrowth and increased TRPC3-mediated calcium entry upon carbachol stimulation. In contrast, mice with 3 copies of Gtf2i (Gtf2i+/Dup) had decreases in axon outgrowth and in TRPC3-mediated calcium entry. The underlying mechanism was that TFII-I did not affect TRPC3 protein expression, while it regulated TRPC3 membrane translocation. Together, our results provide novel functional insight into the cellular mechanisms that underlie neuronal maturation in the context of the 7q11.23 disorders.
Collapse
Affiliation(s)
- Marielle H S Deurloo
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.,Department of Functional Genomics, CNCR, Neuroscience Campus Amsterdam, VU University and VU Medical Center, 1081 HV, Amsterdam, Netherlands
| | - Ekaterina Turlova
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.,Department of Surgery, University of Toronto, 1 King's College Circle, 1184 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada
| | - Wen-Liang Chen
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.,Department of Surgery, University of Toronto, 1 King's College Circle, 1184 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada
| | - You Wei Lin
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada
| | - Elaine Tam
- Department of Medicine, University of Toronto, 661 University Avenue, MaRS Centre, 1515 West Tower, Toronto, ON, M5G 1M1, Canada
| | - Nardos G Tassew
- Vision Division, Krembil Research Institute, Krembil Discovery Tower, KDT-8-418, 60 Leonard Street, Toronto, ON, M5T 2S8, Canada
| | - Michael Wu
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada
| | - Ya-Chi Huang
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada
| | - Jacqueline N Crawley
- MIND Institute, University of California Davis School of Medicine, Sacramento, CA, 95817, USA
| | - Philippe P Monnier
- Vision Division, Krembil Research Institute, Krembil Discovery Tower, KDT-8-418, 60 Leonard Street, Toronto, ON, M5T 2S8, Canada
| | - Alexander J A Groffen
- Department of Functional Genomics, CNCR, Neuroscience Campus Amsterdam, VU University and VU Medical Center, 1081 HV, Amsterdam, Netherlands
| | - Hong-Shuo Sun
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada. .,Department of Surgery, University of Toronto, 1 King's College Circle, 1184 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.
| | - Lucy R Osborne
- Department of Medicine, University of Toronto, 661 University Avenue, MaRS Centre, 1515 West Tower, Toronto, ON, M5G 1M1, Canada. .,Department of Molecular Genetics, University of Toronto, 661 University Avenue, MaRS Centre, 1515 West Tower, Toronto, ON, M5G 1M1, Canada.
| | - Zhong-Ping Feng
- Department of Physiology, University of Toronto, 1 King's College Circle, 3306 Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.
| |
Collapse
|
6
|
Castiglia L, Husain RA, Marquardt I, Fink C, Liehr T, Serino D, Elia M, Coci EG. 7q11.23 microduplication syndrome: neurophysiological and neuroradiological insights into a rare chromosomal disorder. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2018; 62:359-370. [PMID: 29266505 DOI: 10.1111/jir.12457] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/09/2017] [Accepted: 11/10/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND The phenotypical consequence of the heterozygous chromosome 7q11.23 interstitial microdeletion is the Williams-Beuren syndrome, a very well-known genetic multi-systemic disorder. Much less is known about the reverse condition, the heterozygous interstitial microduplication of 7q11.23 region. The first molecular cytogenetic description was published in 2005, and only after several years were the reported patients numerous enough to attempt a description of a common phenotype. METHOD By using a broad multidisciplinary approach, we investigated 12 patients with this rare genetic anomaly. Ten of them harboured the duplication of the classical Williams-Beuren syndrome region and two a slightly larger duplication. Upon a detailed description of the clinical and psychological features, we used electroencephalography and magnetic resonance imaging to explore neurophysiological function and brain structures. RESULTS We analysed the clinical, psychological, neuroradiological and neurophysiological features of 12 yet-unpublished individuals affected by this rare genetic anomaly, focusing specifically on the last two aspects. Several structural abnormalities of the central nervous system were detected, like ventriculomegaly, hypotrophic cerebellum, hypotrophic corpus callosum and hypoplastic temporal lobes. Although only one of 12 individuals suffered from seizures during childhood, three others had abnormal electroencephalography findings prominent in the anterior brain regions, without any visible seizures to date. CONCLUSION Taken together, we enlarged the yet-underrepresented cohort in the literature of patients affected by 7q11.23 microduplication syndrome and shed further light on neuroradiological and neurophysiological aspects of this rare genetic syndrome.
Collapse
Affiliation(s)
- L Castiglia
- Oasi Institute for Research on Mental Retardation and Brain, Troina, Enna, Italy
| | - R A Husain
- Department of Neuropediatrics, Universitätsklinikum Jena, Jena, Thuringia, Germany
| | - I Marquardt
- Department of Neuropediatrics, Klinikum Oldenburg, Oldenburg, Lower Saxony, Germany
| | - C Fink
- Department of Radiology, Allgemeines Krankenhaus Celle, Celle, Lower Saxony, Germany
| | - T Liehr
- Institute of Human Genetics, Friedrich-Schiller-Universität Jena, Jena, Thuringia, Germany
| | - D Serino
- Department of Pediatric Neuro-Psichiatry, ASL CN1, Cuneo, Piedmont, Italy
| | - M Elia
- Oasi Institute for Research on Mental Retardation and Brain, Troina, Enna, Italy
| | - E G Coci
- Department of Paediatrics, Städtisches Klinikum Braunschweig, Braunschweig, Lower Saxony, Germany
- Department of Neuropediatrics, Universitaetsklinikum Bochum, Ruhr-Universitaet Bochum, Bochum, North Rhine-Westphalia, Germany
| |
Collapse
|
7
|
Earhart BA, Williams ME, Zamora I, Randolph LM, Votava-Smith JK, Marcy SN. Phenotype of 7q11.23 duplication: A family clinical series. Am J Med Genet A 2016; 173:114-119. [DOI: 10.1002/ajmg.a.37966] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 08/04/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Beth A. Earhart
- USC University Center for Excellence in Developmental Disabilities; Children's Hospital Los Angeles; Los Angeles California
| | - Marian E. Williams
- Department of Pediatrics, USC University Center for Excellence in Developmental Disabilities; University of Southern California Keck School of Medicine of USC, Children's Hospital Los Angeles; Los Angeles California
| | - Irina Zamora
- Department of Pediatrics, USC University Center for Excellence in Developmental Disabilities; University of Southern California Keck School of Medicine of USC, Children's Hospital Los Angeles; Los Angeles California
| | - Linda Marie Randolph
- Division of Medical Genetics, Department of Pediatrics; University of Southern California, Children's Hospital Los Angeles; Los Angeles California
| | - Jodie K. Votava-Smith
- Division of Cardiology, Department of Pediatrics; University of Southern California, Children's Hospital Los Angeles; Los Angeles California
| | - Stephanie N. Marcy
- Department of Pediatrics, USC University Center for Excellence in Developmental Disabilities; University of Southern California Keck School of Medicine of USC, Children's Hospital Los Angeles; Los Angeles California
| |
Collapse
|
8
|
Abbas E, Cox DM, Smith T, Butler MG. The 7q11.23 Microduplication Syndrome: A Clinical Report with Review of Literature. J Pediatr Genet 2016; 5:129-40. [PMID: 27617154 DOI: 10.1055/s-0036-1584361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 04/11/2016] [Indexed: 12/11/2022]
Abstract
We report a 14-year-old adolescent girl with selective mutism (SM) and a 7q11.23 microduplication detected by chromosomal microarray (CMA) analysis and reviewed the literature from 18 published clinical reports. Our patient had specific phobias, SM, extreme anxiety, obesity, cutis marmorata, and a round appearing face with a short neck and over folded ears. We reviewed the published clinical, cognitive, behavioral, and cytogenetic findings grouped by speech and language delay, growth and development, craniofacial, clinical, and behavior and cognitive features due to the 7q11.23 microduplication. This microduplication syndrome is characterized by speech delay (91%), social anxiety (42%), attention deficit hyperactivity disorder (ADHD, 37%), autism spectrum disorder (29%), and separation anxiety (13%). Other findings include abnormal brain imaging (80%), congenital heart and vascular defects (54%), and mild intellectual disability (38%). We then compared the phenotype with Williams-Beuren syndrome (WBS) which is due to a deletion of the same chromosome region. Both syndromes have abnormal brain imaging, hypotonia, delayed motor development, joint laxity, mild intellectual disability, ADHD, autism, and poor visuospatial skills but opposite or dissimilar findings regarding speech and behavioral patterns, cardiovascular problems, and social interaction. Those with WBS are prone to have hyperverbal speech, lack of stranger anxiety, and supravalvular aortic stenosis while those with the 7q11.23 microduplication have speech delay, SM, social anxiety, and are prone to aortic dilatation.
Collapse
Affiliation(s)
- Elham Abbas
- Departments of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, Kansas, United States
| | - Devin M Cox
- Departments of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, Kansas, United States; Department of Pediatrics, University of Kansas Medical Center, Kansas City, Kansas, United States
| | - Teri Smith
- Departments of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, Kansas, United States
| | - Merlin G Butler
- Departments of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, Kansas, United States; Department of Pediatrics, University of Kansas Medical Center, Kansas City, Kansas, United States
| |
Collapse
|
9
|
Morris CA, Mervis CB, Paciorkowski AP, Abdul-Rahman O, Dugan SL, Rope AF, Bader P, Hendon LG, Velleman SL, Klein-Tasman BP, Osborne LR. 7q11.23 Duplication syndrome: Physical characteristics and natural history. Am J Med Genet A 2015; 167A:2916-35. [PMID: 26333794 PMCID: PMC5005957 DOI: 10.1002/ajmg.a.37340] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/08/2015] [Indexed: 01/17/2023]
Abstract
In order to describe the physical characteristics, medical complications, and natural history of classic 7q11.23 duplication syndrome [hereafter Dup7 (MIM 609757)], reciprocal duplication of the region deleted in Williams syndrome [hereafter WS (MIM 194050)], we systematically evaluated 53 individuals aged 1.25-21.25 years and 11 affected adult relatives identified in cascade testing. In this series, 27% of probands with Dup7 had an affected parent. Seven of the 26 de novo duplications that were examined for inversions were inverted; in all seven cases one of the parents had the common inversion polymorphism of the WS region. We documented the craniofacial features of Dup7: brachycephaly, broad forehead, straight eyebrows, broad nasal tip, low insertion of the columella, short philtrum, thin upper lip, minor ear anomalies, and facial asymmetry. Approximately 30% of newborns and 50% of older children and adults had macrocephaly. Abnormalities were noted on neurological examination in 88.7% of children, while 81.6% of MRI studies showed structural abnormalities such as decreased cerebral white matter volume, cerebellar vermis hypoplasia, and ventriculomegaly. Signs of cerebellar dysfunction were found in 62.3%, hypotonia in 58.5%, Developmental Coordination Disorder in 74.2%, and Speech Sound Disorder in 82.6%. Behavior problems included anxiety disorders, ADHD, and oppositional disorders. Medical problems included seizures, 19%; growth hormone deficiency, 9.4%; patent ductus arteriosus, 15%; aortic dilation, 46.2%; chronic constipation, 66%; and structural renal anomalies, 18%. We compare these results to the WS phenotype and offer initial recommendations for medical evaluation and surveillance of individuals who have Dup7.
Collapse
Affiliation(s)
- Colleen A. Morris
- Department of Pediatrics, University of Nevada School of Medicine, Las Vegas, NV
| | - Carolyn B. Mervis
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY
| | - Alex P. Paciorkowski
- Center for Neural Development and Disease, Departments of Neurology, Pediatrics, and Biomedical Genetics, University of Rochester Medical Center, Rochester, NY
| | - Omar Abdul-Rahman
- Department of Pediatrics University of Mississippi Medical Center, Jackson, MS
| | - Sarah L. Dugan
- Division of Medical Genetics, University of Utah, Salt Lake City, UT
| | - Alan F. Rope
- Department of Medical Genetics, Kaiser Permanente, Portland OR
| | | | - Laura G. Hendon
- Department of Pediatrics University of Mississippi Medical Center, Jackson, MS
| | - Shelley L. Velleman
- Department of Communication Sciences and Disorders, University of Vermont, Burlington, VT
| | | | - Lucy R. Osborne
- Departments of Medicine and Molecular Genetics and Institute of Medical Science, University of Toronto, Toronto ON, Canada
| |
Collapse
|
10
|
Patil SJ, Salian S, Bhat V, Girisha KM, Shrivastava Y, Vs K, Sapare A. Familial 7q11.23 duplication with variable phenotype. Am J Med Genet A 2015; 167A:2727-30. [PMID: 26109321 DOI: 10.1002/ajmg.a.37226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 06/10/2015] [Indexed: 11/10/2022]
Abstract
Chromosomal microdeletions and microduplications are known to cause variable clinical features ranging from apparently normal phenotype to intellectual disability, multiple congenital anomalies, and/or other variable clinical features. 7q11.23 region deletion is the cause for Williams-Beuren syndrome and duplication of same region 7q11.23 causes distinguishable clinical phenotype. Familial inheritance is known for both microdeletion and microduplication of 7q11.23 region. Here, we report a patient of paternally inherited 7q11.23 microduplication with developmental delay, macrocephaly, and structural brain malformations.
Collapse
Affiliation(s)
- Siddaramappa J Patil
- Department of Medical Genetics, Narayana Multispecialty Hospital, Bangalore, India
| | - Smrithi Salian
- Department of Medical Genetics, Kasturba Medical College, Manipal University, Manipal, India
| | - Venkaraman Bhat
- Department of Radiology, Narayana Multispecialty Hospital, Bangalore, India
| | - Katta Mohan Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal University, Manipal, India
| | - Yash Shrivastava
- Department of Pediatric Cardiology, Narayana Institute of Cardiac Sciences, Bangalore, India
| | - Kiran Vs
- Department of Pediatric Cardiology, Narayana Institute of Cardiac Sciences, Bangalore, India
| | - Anilkumar Sapare
- Department of Pediatrics, Narayana Multispecialty Hospital, Bangalore, India
| |
Collapse
|
11
|
Mervis CB, Klein-Tasman BP, Huffman MJ, Velleman SL, Pitts CH, Henderson DR, Woodruff-Borden J, Morris CA, Osborne LR. Children with 7q11.23 duplication syndrome: psychological characteristics. Am J Med Genet A 2015; 167:1436-50. [PMID: 25900101 DOI: 10.1002/ajmg.a.37071] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 03/08/2015] [Indexed: 12/11/2022]
Abstract
To begin to delineate the psychological characteristics associated with classic 7q11.23 duplication syndrome (duplication of the classic Williams syndrome region; hereafter classic Dup7), we tested 63 children with classic Dup7 aged 4-17 years. Sixteen toddlers aged 18-45 months with classic Dup7 and 12 adults identified by cascade testing also were assessed. For the child group, median General Conceptual Ability (similar to IQ) on the Differential Ability Scales-II was 85.0 (low average), with a range from severe disability to high average ability. Median reading and mathematics achievement standard scores were at the low average to average level, with a range from severe impairment to high average or superior ability. Adaptive behavior was considerably more limited; median Scales of Independent Behavior-Revised Broad Independence standard score was 62.0 (mild impairment), with a range from severe adaptive impairment to average adaptive ability. Anxiety disorders were common, with 50.0% of children diagnosed with Social Phobia, 29.0% with Selective Mutism, 12.9% with Separation Anxiety Disorder, and 53.2% with Specific Phobia. In addition, 35.5% were diagnosed with Attention Deficit/Hyperactivity Disorder and 24.2% with Oppositional Defiant Disorder or Disruptive Behavior Disorder-Not Otherwise Specified. 33.3% of the children screened positive for a possible Autism Spectrum Disorder and 82.3% were diagnosed with Speech Sound Disorder. We compare these findings to previously reported results for children with Williams syndrome and argue that genotype/phenotype studies involving the Williams syndrome region offer important opportunities to understand the contribution of genes in this region to common disorders affecting the general population.
Collapse
Affiliation(s)
- Carolyn B Mervis
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky
| | | | - Myra J Huffman
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky
| | - Shelley L Velleman
- Department of Communication Sciences and Disorders, University of Vermont, Burlington, Vermont
| | - C Holley Pitts
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky
| | - Danielle R Henderson
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky
| | - Janet Woodruff-Borden
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky
| | - Colleen A Morris
- Department of Pediatrics, University of Nevada School of Medicine, Las Vegas, Nevada
| | - Lucy R Osborne
- Departments of Medicine and Molecular Genetics and Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
12
|
7q11.23 dosage-dependent dysregulation in human pluripotent stem cells affects transcriptional programs in disease-relevant lineages. Nat Genet 2014; 47:132-41. [PMID: 25501393 DOI: 10.1038/ng.3169] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 11/24/2014] [Indexed: 12/12/2022]
Abstract
Cell reprogramming promises to make characterization of the impact of human genetic variation on health and disease experimentally tractable by enabling the bridging of genotypes to phenotypes in developmentally relevant human cell lineages. Here we apply this paradigm to two disorders caused by symmetrical copy number variations of 7q11.23, which display a striking combination of shared and symmetrically opposite phenotypes--Williams-Beuren syndrome and 7q-microduplication syndrome. Through analysis of transgene-free patient-derived induced pluripotent stem cells and their differentiated derivatives, we find that 7q11.23 dosage imbalance disrupts transcriptional circuits in disease-relevant pathways beginning in the pluripotent state. These alterations are then selectively amplified upon differentiation of the pluripotent cells into disease-relevant lineages. A considerable proportion of this transcriptional dysregulation is specifically caused by dosage imbalances in GTF2I, which encodes a key transcription factor at 7q11.23 that is associated with the LSD1 repressive chromatin complex and silences its dosage-sensitive targets.
Collapse
|