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Han JY, Park J. A Recurrent De Novo Terminal Duplication of 14q32 in Korean Siblings Associated with Developmental Delay and Intellectual Disability, Growth Retardation, Facial Dysmorphism, and Cerebral Infarction: A Case Report and Literature Review. Genes (Basel) 2021; 12:1388. [PMID: 34573370 PMCID: PMC8472681 DOI: 10.3390/genes12091388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022] Open
Abstract
The terminal 14q32 duplication has been reported often in association with other cytogenetic abnormalities, and individuals with this specific duplication showed varying degrees of developmental delay/intellectual disability (DD/ID) and growth retardation (GR), and distinct facial dysmorphisms. Herein, based on the limited cases of terminal duplication of 14q32 known to date, we present new affected siblings presenting with DD/ID, GR, and facial dysmorphism, as well as cerebral infarction caused by recurrent de novo der(14)t(14;14)(p11.2;q32.1) leading to terminal duplication of 14q32. We used coverage analysis generated via duo exome sequencing, performed chromosomal microarray (CMA) as a confirmatory test, and compared our findings with those reported previously. Coverage analysis generated via duo exome sequencing revealed a 17.2 Mb heterozygous duplication at chromosome 14q32.11-q32.33 with a Z ratio ranging between 0.5 and 1 in the proband and her elder brother. As a complementary method, CMA established a terminal duplication described as the arr[hg19]14q32.11q32.33(90,043,558_107,258,824)x3 in the proband and her elder brother; however, the parents and other siblings showed normal karyotyping and no abnormal gain or loss of CMA results. Five candidate genes, BCL11B, CCNK, YY1, DYNC1H1, and PACS2, were associated with the clinical phenotypes in our cases. Although the parents had normal chromosomes, two affected cases carrying terminal duplication of 14q32 can be explained by gonadal mosaicism. Further studies are needed to establish the association between cerebrovascular events and terminal duplication of chromosome 14q32, including investigation into the cytogenetics of patients with precise clinical descriptions.
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Affiliation(s)
- Ji Yoon Han
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Joonhong Park
- Department of Laboratory Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
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Garofalo A, Lanna M, Ronzoni L, Toto V, Izzo G, Rustico MA. Ultrasound prenatal diagnosis of a de novo 14q distal duplication associated with foetal anomalies: a case report. CASE REPORTS IN PERINATAL MEDICINE 2020. [DOI: 10.1515/crpm-2020-0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Objectives
Partial trisomy 14q is a rare chromosomal abnormality with an extremely variable phenotype ranging from mild to severe forms of malformation. Most of the cases described in literature are postnatal clinical findings although few prenatal cases have been reported.
Case presentation
A 33-year-old woman at 21+6 weeks’ gestation was referred to our hospital for a detailed foetal ultrasound with suspected partial agenesis of corpus callosum and ureterocele. On examination, we found a short corpus callosum and ureterocele with a duplicated right renal collecting system. Moreover, there was an intrarotation of left foot with a prominent part departing from the ankle, both thighs appeared thicker, a thickening of the nuchal fold, a mild hypertelorism and a thick heterogeneous placenta. The patient underwent magnetic resonance imaging (MRI), which confirmed the foetal anomalies. The couple opted for a termination of pregnancy. Chromosome analysis and molecular karyotyping of amniocytes revealed a de novo rearrangement of chromosome 14 with an interstitial gain 14q31.1–14q32.22 and a terminal deletion 14q32.33.
Conclusions
The majority of partial trisomy 14q reporter are postnatal diagnoses. Improvement in the quality of foetal imaging and molecular techniques have made possible to identify many genetic syndromes prenatally. In our opinion, anomalies of the brain, urinary system and limbs may be the core findings of trisomy 14q. To our knowledge, no such case has ever been described previously.
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Affiliation(s)
- Anna Garofalo
- Foetal Medicine Unit, Buzzi Children's Hospital, ASST Fatebenefratelli Sacco, University of Milan , Milan , Italy
| | - Mariano Lanna
- Foetal Medicine Unit, Buzzi Children's Hospital, ASST Fatebenefratelli Sacco, University of Milan , Milan , Italy
| | - Luisa Ronzoni
- Medical Genetics Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico , Milan , Italy
| | - Valentina Toto
- Surgical and Molecular Pathology Unit , San Paolo Hospital , Milan , Italy
| | - Giana Izzo
- Department of Pediatric Radiology and Neuroradiology , Buzzi Children's Hospital , ASST Fatebenefratelli Sacco , Milan , Italy
| | - Maria Angela Rustico
- Foetal Medicine Unit, Buzzi Children's Hospital, ASST Fatebenefratelli Sacco, University of Milan , Milan , Italy
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Peng Y, Pang J, Hu J, Jia Z, Xi H, Ma N, Yang S, Liu J, Huang X, Tang C, Wang H. Clinical and molecular characterization of 12 prenatal cases of Cri-du-chat syndrome. Mol Genet Genomic Med 2020; 8:e1312. [PMID: 32500674 PMCID: PMC7434726 DOI: 10.1002/mgg3.1312] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Background This study aimed to define the molecular basis for 12 prenatal cases of Cri‐du‐chat syndrome (CdCS) and the potential genotyping‐phenotyping association. Methods Karyotyping and single nucleotide polymorphism array analyses for copy number variants were performed. Results Nine cases had 5p terminal deletions and three had 5p interstitial deletions, and these cases had variable deletion sizes with partial overlapping. Phenotypically, besides intrauterine growth restriction (IUGR) and brain as well as heart abnormalities, hypospadias, and lung dysplasia were observed. Potential genetic causes for specific phenotypes in these cases were identified. Conclusion This study defined the molecular bases for the patients of CdCS, which is important for genetic counseling for these families. The findings of present study expand the clinical features of CdCS in the fetal period, and provided important information for further refining the genotypic–phenotypic correlations for this syndrome.
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Affiliation(s)
- Ying Peng
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Jialun Pang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Jiancheng Hu
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Zhengjun Jia
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Hui Xi
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Na Ma
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Shuting Yang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Jing Liu
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Xiaoliang Huang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
| | - Chengyuan Tang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hua Wang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China.,National Health Commission Key Laboratory of Birth Defects Research, Prevention and Treatment, Changsha, Hunan, China
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Redaelli S, Conconi D, Villa N, Sala E, Crosti F, Corti C, Catusi I, Garzo M, Romitti L, Martinoli E, Patrizi A, Malgara R, Recalcati MP, Dalprà L, Lavitrano M, Riva P, Roversi G, Bentivegna A. Instability of Short Arm of Acrocentric Chromosomes: Lesson from Non-Acrocentric Satellited Chromosomes. Report of 24 Unrelated Cases. Int J Mol Sci 2020; 21:ijms21103431. [PMID: 32413994 PMCID: PMC7279238 DOI: 10.3390/ijms21103431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 01/13/2023] Open
Abstract
Satellited non-acrocentric autosomal chromosomes (ps–qs-chromosomes) are the result of an interchange between sub- or telomeric regions of autosomes and the p arm of acrocentrics. The sequence homology at the rearrangement breakpoints appears to be, among others, the most frequent mechanism generating these variant chromosomes. The unbalanced carriers of this type of translocation may or may not display phenotypic abnormalities. With the aim to understand the causative mechanism, we revised all the ps–qs-chromosomes identified in five medical genetics laboratories, which used the same procedures for karyotype analysis, reporting 24 unrelated cases involving eight chromosomes. In conclusion, we observed three different scenarios: true translocation, benign variant and complex rearrangement. The detection of translocation partners is essential to evaluate possible euchromatic unbalances and to infer their effect on phenotype. Moreover, we emphasize the importance to perform both, molecular and conventional cytogenetics methods, to better understand the behavior of our genome.
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Affiliation(s)
- Serena Redaelli
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (S.R.); (D.C.); (L.D.); (M.L.); (G.R.)
| | - Donatella Conconi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (S.R.); (D.C.); (L.D.); (M.L.); (G.R.)
| | - Nicoletta Villa
- Medical Genetics Laboratory, Clinical Pathology Department, S. Gerardo Hospital, 20900 Monza, Italy; (N.V.); (E.S.); (F.C.)
| | - Elena Sala
- Medical Genetics Laboratory, Clinical Pathology Department, S. Gerardo Hospital, 20900 Monza, Italy; (N.V.); (E.S.); (F.C.)
| | - Francesca Crosti
- Medical Genetics Laboratory, Clinical Pathology Department, S. Gerardo Hospital, 20900 Monza, Italy; (N.V.); (E.S.); (F.C.)
| | - Cecilia Corti
- Medical Cytogenetics Laboratory, Istituto Auxologico Italiano IRCCS, 20095 Cusano Milanino, Italy; (C.C.); (I.C.); (M.G.); (M.P.R.)
| | - Ilaria Catusi
- Medical Cytogenetics Laboratory, Istituto Auxologico Italiano IRCCS, 20095 Cusano Milanino, Italy; (C.C.); (I.C.); (M.G.); (M.P.R.)
| | - Maria Garzo
- Medical Cytogenetics Laboratory, Istituto Auxologico Italiano IRCCS, 20095 Cusano Milanino, Italy; (C.C.); (I.C.); (M.G.); (M.P.R.)
| | - Lorenza Romitti
- Pathology and Cytogenetics Laboratory, Clinical Pathology Department, Niguarda Ca’ Granda Hospital, 20162 Milan, Italy;
| | - Emanuela Martinoli
- Medical Genetics Laboratory, Medical Biotechnology and Translational Medicine Department, University of Milan, 20090 Milan, Italy; (E.M.); (P.R.)
| | - Antonella Patrizi
- Medical Cytogenetics Laboratory, Clinical Pathology Department, San Paolo Hospital, 20142 Milan, Italy; (A.P.); (R.M.)
| | - Roberta Malgara
- Medical Cytogenetics Laboratory, Clinical Pathology Department, San Paolo Hospital, 20142 Milan, Italy; (A.P.); (R.M.)
| | - Maria Paola Recalcati
- Medical Cytogenetics Laboratory, Istituto Auxologico Italiano IRCCS, 20095 Cusano Milanino, Italy; (C.C.); (I.C.); (M.G.); (M.P.R.)
| | - Leda Dalprà
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (S.R.); (D.C.); (L.D.); (M.L.); (G.R.)
- Medical Genetics Laboratory, Clinical Pathology Department, S. Gerardo Hospital, 20900 Monza, Italy; (N.V.); (E.S.); (F.C.)
| | - Marialuisa Lavitrano
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (S.R.); (D.C.); (L.D.); (M.L.); (G.R.)
| | - Paola Riva
- Medical Genetics Laboratory, Medical Biotechnology and Translational Medicine Department, University of Milan, 20090 Milan, Italy; (E.M.); (P.R.)
| | - Gaia Roversi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (S.R.); (D.C.); (L.D.); (M.L.); (G.R.)
| | - Angela Bentivegna
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (S.R.); (D.C.); (L.D.); (M.L.); (G.R.)
- Correspondence: ; Tel.: +39-0264488133
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Vigdorovich N, Ben‐Sira L, Blumkin L, Precel R, Nezer I, Yosovich K, Cross Z, Vanderver A, Lev D, Lerman‐Sagie T, Zerem A. Brain white matter abnormalities associated with copy number variants. Am J Med Genet A 2019; 182:93-103. [DOI: 10.1002/ajmg.a.61389] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/31/2019] [Accepted: 10/04/2019] [Indexed: 01/03/2023]
Affiliation(s)
| | - Liat Ben‐Sira
- Sackler School of Medicine Tel Aviv University Tel‐Aviv Israel
- Division of Pediatric Radiology, Department of Radiology Dana‐Dwek Children's Hospital, Tel‐Aviv Medical Center Tel Aviv Israel
| | - Lubov Blumkin
- Sackler School of Medicine Tel Aviv University Tel‐Aviv Israel
- Pediatric Neurology Unit Wolfson Medical Center Holon Israel
| | - Ronit Precel
- Division of Pediatric Radiology, Department of Radiology Dana‐Dwek Children's Hospital, Tel‐Aviv Medical Center Tel Aviv Israel
| | - Ifat Nezer
- Institute of Medical Genetics, Wolfson Medical Center Holon Israel
| | - Keren Yosovich
- Institute of Medical Genetics, Wolfson Medical Center Holon Israel
| | - Zachary Cross
- Division of Neurology Children's Hospital of Philadelphia Philadelphia Pennsylvania
| | - Adeline Vanderver
- Division of Neurology Children's Hospital of Philadelphia Philadelphia Pennsylvania
- Department of Neurology, Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania
| | - Dorit Lev
- Sackler School of Medicine Tel Aviv University Tel‐Aviv Israel
- Institute of Medical Genetics, Wolfson Medical Center Holon Israel
| | - Tally Lerman‐Sagie
- Sackler School of Medicine Tel Aviv University Tel‐Aviv Israel
- Pediatric Neurology Unit Wolfson Medical Center Holon Israel
| | - Ayelet Zerem
- Sackler School of Medicine Tel Aviv University Tel‐Aviv Israel
- Pediatric Neurology Unit Wolfson Medical Center Holon Israel
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