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Wang M, Li B, Liao Z, Jia Y, Fu Y. A novel phenotype of 13q12.3 microdeletion characterized by epilepsy in an Asian child: a case report. BMC Med Genomics 2020; 13:144. [PMID: 33023587 PMCID: PMC7539513 DOI: 10.1186/s12920-020-00801-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/22/2020] [Indexed: 11/20/2022] Open
Abstract
Background The microdeletion of chromosome 13 has been rarely reported. Here, we report a 14-year old Asian female with a de novo microdeletion on 13q12.3. Case presentation The child suffered mainly from two types of epileptic seizures: partial onset seizures and myoclonic seizures, accompanied with intellectual disability, developmental delay and minor dysmorphic features. The electroencephalogram disclosed slow waves in bilateral temporal, together with generalized spike-and-slow waves, multiple-spike-and-slow waves and slow waves in bilateral occipitotemporal regions. The exome sequencing showed no pathogenic genetic variation in the patient’s DNA sample. While the single nucleotide polymorphism (SNP) array analysis revealed a de novo microdeletion spanning 2.324 Mb, within the cytogenetic band 13q12.3. Conclusions The epilepsy may be associated with the mutation of KATNAL1 gene or the deletion unmasking a recessive mutation on the other allele, and our findings could provide a phenotypic expansion.
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Affiliation(s)
- Mina Wang
- The Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing, 100010, China.,Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Bin Li
- The Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing, 100010, China
| | - Zehuan Liao
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore.,Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Biomedicum, Solnavägen 9, 17177, Stockholm, Sweden
| | - Yu Jia
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuanbo Fu
- The Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing, 100010, China.
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Tominaga M, Saito T, Masuno M, Umeda Y, Kurosawa K. Developmental delay and dysmorphic features in a girl with a de novo 5.4 Mb deletion of 13q12.11-q12.13. Congenit Anom (Kyoto) 2020; 60:73-74. [PMID: 31206199 DOI: 10.1111/cga.12346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/27/2019] [Accepted: 06/04/2019] [Indexed: 01/24/2023]
Affiliation(s)
- Makiko Tominaga
- Division of Medical Genetics, Kanagawa Children's Medical Center, Yokohama, Japan.,Children's Medical Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Toshiyuki Saito
- Department of Clinical Laboratory, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Mitsuo Masuno
- Genetic Counseling Program, Graduate School of Health and Welfare, Kawasaki University of Medical Welfare, Kurashiki, Japan
| | - You Umeda
- Children's Medical Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Kenji Kurosawa
- Division of Medical Genetics, Kanagawa Children's Medical Center, Yokohama, Japan
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Johnson SL, Walters-Sen LC, Stanek JW. Placental Pathology in Placental Mesenchymal Dysplasia with 13q12.11 Deletion and a 25-Week Gestation Female Infant. AMERICAN JOURNAL OF CASE REPORTS 2018; 19:369-373. [PMID: 29593209 PMCID: PMC5890614 DOI: 10.12659/ajcr.907329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Patient: — Final Diagnosis: Placental mesenchymal dysplasia Symptoms: Premature rupture of membranes Medication:— Clinical Procedure: Amniocentesis Specialty: Obstetrics and Gynecology
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Affiliation(s)
- Sheryl L Johnson
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, USA
| | | | - Jerzy W Stanek
- Division of Pathology, Cincinnati Children's Hospital, Cincinnati, USA
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Lagou M, Papoulidis I, Orru S, Papadopoulos V, Daskalakis G, Kontodiou M, Anastasakis E, Petersen MB, Kitsos G, Thomaidis L, Manolakos E. A de novo 2.9 Mb interstitial deletion at 13q12.11 in a child with developmental delay accompanied by mild dysmorphic characteristics. Mol Cytogenet 2014; 7:92. [PMID: 25506395 PMCID: PMC4265435 DOI: 10.1186/s13039-014-0092-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 11/23/2014] [Indexed: 11/24/2022] Open
Abstract
Background Proximal deletions in the 13q12.11 region are very rare. Much larger deletions including this region have been described and are associated with complex phenotypes of mental retardation, developmental delay and various others anomalies. Results We report on a 3-year-old girl with a rare 2.9 Mb interstitial deletion at 13q12.11 due to a de novo unbalanced t(13;14) translocation. She had mild mental retardation and relatively mild dysmorphic features such as microcephaly, flat nasal bridge, moderate micrognathia and clinodactyly of 5th finger. Molecular karyotyping revealed a deletion on the long arm of chromosome 13 as involving sub-bands 13q12.11, a deletion of about 2.9 Mb. Discussion The clinical application of array-CGH has made it possible to detect submicroscopical genomic rearrangements that are associated with varying phenotypes.The description of more patients with deletions of the 13q12.11 region will allow a more precise genotype-phenotype correlation.
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Affiliation(s)
| | - Ioannis Papoulidis
- Eurogenetica S.A., Laboratory of Genetics, Michalakopoulou 125& Vervainon 14, 11527 Athens, Thessaloniki Greece
| | - Sandro Orru
- Department of Medical Genetics, University of Cagliari, Binaghi Hospital, Cagliari, Italy
| | | | - George Daskalakis
- 1st Department of Obstetrics & Gynecology, University of Athens, Athens, Greece
| | - Maria Kontodiou
- Eurogenetica S.A., Laboratory of Genetics, Michalakopoulou 125& Vervainon 14, 11527 Athens, Thessaloniki Greece
| | | | - Michael B Petersen
- Department of Clinical Medicine, The Faculty of Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - George Kitsos
- Department of Ophthalmology, University of Ioannina, Ioannina, Greece
| | - Loretta Thomaidis
- Developmental Assessment Unit, 2nd Department of Pediatrics, P. & A. Kyriakou Children's Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Emmanouil Manolakos
- Eurogenetica S.A., Laboratory of Genetics, Michalakopoulou 125& Vervainon 14, 11527 Athens, Thessaloniki Greece ; Department of Medical Genetics, University of Cagliari, Binaghi Hospital, Cagliari, Italy
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Pavone P, Briuglia S, Falsaperla R, Warm A, Pavone V, Bernardini L, Novelli A, Praticò AD, Salpietro V, Ruggieri M. Wide spectrum of congenital anomalies including choanal atresia, malformed extremities, and brain and spinal malformations in a girl with a de novo 5.6-Mb deletion of 13q12.11-13q12.13. Am J Med Genet A 2014; 164A:1734-43. [PMID: 24807585 DOI: 10.1002/ajmg.a.36391] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 11/07/2013] [Indexed: 01/31/2023]
Abstract
A 2 ½-year-old girl with multiple congenital anomalies and a de novo 5.6-Mb deletion on chromosome 13q12.11-13q12.13 is reported. She showed choanal atresia, scalp aplasia cutis, mild dysmorphic features, severe malformation of the hands and feet, Sylvian aqueductal stenosis, hydrocephalus, small cerebellum with pointed cerebellar tonsils, cervical, lumbar and sacral clefting, single central incisor and mild developmental delay. The girl's anomalies were compared with: (A) one boy reported by each of Der Kaloustian et al. [2011] and Tanteles et al. [2011] with similar, albeit smaller, 2.1 to 2.9 Mb deletions in which the abnormalities consisted of mild facial dysmorphism, mild malformations of the fingers and/or toes, and developmental delay; (B) one girl reported by Friedman et al. [2006] with similar, albeit larger, 5.7 Mb deletion with mild developmental delay and haematological abnormalities; (C) one girl reported by Slee et al. [1991] with a deletion of band q12.2 in chromosome 13, who had Moebius syndrome with facial dysmorphism, high arched palate, micrognathia, and small tongue with no abnormalities of the extremities; and (D) seven additional individuals recorded in the DECIPHER 6.0 database who all had dysmorphic features and developmental delay plus a spectrum of clinical manifestations including deafness, ataxia/oculomotor apraxia, spasticity, small testes, and mild fingers' anomalies. The deleted region hereby reported encompassed 34 known genes, including GJA3, GJB2, and GJB6, which are responsible for autosomal recessive deafness, FGF9, which plays crucial roles in embryonic neurological development, and ATP8A2, which causes a cerebellar ataxia and disequilibrium syndrome.
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Affiliation(s)
- Piero Pavone
- Unit of Pediatrics and Pediatric Emergency, University Hospital "Policlinico-Vittorio Emanuele", Catania, Italy
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Bartholdi D, Stray-Pedersen A, Azzarello-Burri S, Kibaek M, Kirchhoff M, Oneda B, Rødningen O, Schmitt-Mechelke T, Rauch A, Kjaergaard S. A newly recognized 13q12.3 microdeletion syndrome characterized by intellectual disability, microcephaly, and eczema/atopic dermatitis encompassing the HMGB1 and KATNAL1 genes. Am J Med Genet A 2014; 164A:1277-83. [PMID: 24664804 DOI: 10.1002/ajmg.a.36439] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 12/29/2013] [Indexed: 12/21/2022]
Abstract
Proximal deletions of the long arm of chromosome 13 have been reported only rarely. Here we present three unrelated patients with heterozygous, apparently de novo deletions encompassing 13q12.3. The patients present with moderate demonstrated or apparent intellectual disability, postnatal microcephaly, and eczema/atopic dermatitis as the predominant symptoms. In addition, they had pronounced feeding difficulties in early infancy. They displayed similar facial features such as malar flattening, a prominent nose with underdeveloped alae nasi, a smooth philtrum, and a thin vermillion of the upper lip. The proximal and distal breakpoints were clustered and the deletions spanned from 1.4 to 1.7 Mb, comprising at least 11 RefSeq genes. However, heterozygous deletions partially overlapping those observed in the present patients have been described in healthy parents of patients with Peters-Plus syndrome, an autosomal recessive disorder caused by inactivation of the B3GALTL gene. We therefore propose that the critical region of the 13q12.3 microdeletion syndrome contains only three genes, namely, KATNAL1, HMGB1, and LINC00426, a non-protein coding RNA. The KATNAL1 protein belongs to a family of microtubule severing enzymes that have been implicated in CNS plasticity in experimental models, but little is known about its function in humans. The HMGB1 protein is an evolutionarily conserved chromatin-associated protein involved in many biologically important processes. In summary, we propose that microdeletion 13q12.3 represents a novel clinically recognizable condition and that the microtubule severing gene KATNAL1 and the chromatin-associated gene HMGB1 are candidate genes for intellectual disability inherited in an autosomal dominant pattern.
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Affiliation(s)
- Deborah Bartholdi
- Institute of Medical Genetics, University of Zürich, Zurich, Switzerland
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Bartnik M, Nowakowska B, Derwińska K, Wiśniowiecka-Kowalnik B, Kędzior M, Bernaciak J, Ziemkiewicz K, Gambin T, Sykulski M, Bezniakow N, Korniszewski L, Kutkowska-Kaźmierczak A, Klapecki J, Szczałuba K, Shaw CA, Mazurczak T, Gambin A, Obersztyn E, Bocian E, Stankiewicz P. Application of array comparative genomic hybridization in 256 patients with developmental delay or intellectual disability. J Appl Genet 2013; 55:125-44. [PMID: 24297458 PMCID: PMC3909616 DOI: 10.1007/s13353-013-0181-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 10/17/2013] [Accepted: 10/20/2013] [Indexed: 12/22/2022]
Abstract
We used whole-genome exon-targeted oligonucleotide array comparative genomic hybridization (array CGH) in a cohort of 256 patients with developmental delay (DD)/intellectual disability (ID) with or without dysmorphic features, additional neurodevelopmental abnormalities, and/or congenital malformations. In 69 patients, we identified 84 non-polymorphic copy-number variants, among which 41 are known to be clinically relevant, including two recently described deletions, 4q21.21q21.22 and 17q24.2. Chromosomal microarray analysis revealed also 15 potentially pathogenic changes, including three rare deletions, 5q35.3, 10q21.3, and 13q12.11. Additionally, we found 28 copy-number variants of unknown clinical significance. Our results further support the notion that copy-number variants significantly contribute to the genetic etiology of DD/ID and emphasize the efficacy of the detection of novel candidate genes for neurodevelopmental disorders by whole-genome array CGH.
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Affiliation(s)
- Magdalena Bartnik
- Department of Medical Genetics, Institute of Mother and Child, Warsaw, Poland
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