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Sasaki T, Okabe M, Tosaki T, Honda Y, Ishikawa M, Tsuboi N, Yokoo T. Proteinuric glomerulopathy in an adolescent with a distal partial trisomy chromosome 1. CEN Case Rep 2018; 7:253-258. [PMID: 29766469 DOI: 10.1007/s13730-018-0337-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/10/2018] [Indexed: 12/31/2022] Open
Abstract
We report a case of distal partial trisomy 1 from q32.1 to 41 that have exhibited proteinuric glomerulopathy. The patient was a 17-year-old adolescent with clinical features of low birth weight, mild mental retardation and mild deafness, from the birth. He exhibited non-nephrotic range proteinuria with the mild obesity since the age of sixteen. Image studies did not reveal morphological abnormalities of the kidneys. Renal biopsy findings showed no definitive evidence of primary glomerular diseases, and were characterized by a very low glomerular density, glomerulomegaly and focal effacement of podocyte foot processes. Therapies with dietary sodium restriction, body weight reduction and the administration of angiotensin receptor blocker markedly reduced his proteinuria. It was likely that mismatch between congenital reduction in the nephron number and catch-up growth of the whole body size played a major role in the development of glomerular hyperperfusion injury. At present, the direct contribution of genetic factors due to this chromosomal disorder to such a substantial reduction in the nephron number remains uncertain.
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Affiliation(s)
- Takaya Sasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan.
- Department of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan.
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan
| | - Takeshi Tosaki
- Department of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Yu Honda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan
- Department of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Masahiro Ishikawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan
- Department of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan
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2
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Luo A, Cheng D, Yuan S, Li H, Du J, Zhang Y, Yang C, Lin G, Zhang W, Tan YQ. Maternal interchromosomal insertional translocation leading to 1q43-q44 deletion and duplication in two siblings. Mol Cytogenet 2018; 11:24. [PMID: 29636822 PMCID: PMC5883343 DOI: 10.1186/s13039-018-0371-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/08/2018] [Indexed: 12/05/2022] Open
Abstract
Background 1q43-q44 deletion syndrome is a well-defined chromosomal disorder which is characterized by moderate to severe mental retardation, and variable but characteristic facial features determined by the size of the segment and the number of genes involved. However, patients with 1q43-q44 duplication with a clinical phenotype comparable to that of 1q43-q44 deletion are rarely reported. Moreover, pure 1q43-q44 deletions and duplications derived from balanced insertional translocation within the same family with precisely identified breakpoints have not been reported. Case presentation The proband is a 6-year-old girl with profound developmental delay, mental retardation, microcephaly, epilepsy, agenesis of the corpus callosum and hearing impairment. Her younger brother is a 3-month-old boy with macrocephaly and mild developmental delay in gross motor functions. G-banding analysis of the subjects at the 400-band level did not reveal any subtle structural changes in their karyotypes. However, single-nucleotide polymorphism (SNP) array analysis showed a deletion and a duplication of approximately 6.0 Mb at 1q43-q44 in the proband and her younger brother, respectively. The Levicare analysis pipeline of whole-genome sequencing (WGS) further demonstrated that a segment of 1q43-q44 was inserted at 14q23.1 in the unaffected mother, which indicated that the mother was a carrier of a 46,XX,ins(14;1)(q23.1;q43q44) insertional translocation. Moreover, Sanger sequencing was used to assist the mapping of the breakpoints and the final validation of those breakpoints. The breakpoint on chromosome 1 disrupted the EFCAB2 gene in the first intron, and the breakpoint on chromosome 14 disrupted the PRKCH gene within the 12th intron. In addition, fluorescence in situ hybridization (FISH) further confirmed that the unaffected older sister of the proband carried the same karyotype as the mother. Conclusion Here, we describe a rare family exhibiting pure 1q43-q44 deletion and duplication in two siblings caused by a maternal balanced insertional translocation. Our study demonstrates that WGS with a carefully designed analysis pipeline is a powerful tool for identifying cryptic genomic balanced translocations and mapping the breakpoints at the nucleotide level and could be an effective method for explaining the relationship between karyotype and phenotype. Electronic supplementary material The online version of this article (10.1186/s13039-018-0371-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Aixiang Luo
- 1Institute of Reproduction and Stem Cell Engineering, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078 People's Republic of China
| | - Dehua Cheng
- 1Institute of Reproduction and Stem Cell Engineering, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078 People's Republic of China.,2Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan 410078 People's Republic of China
| | - Shimin Yuan
- 2Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan 410078 People's Republic of China
| | - Haiyu Li
- 1Institute of Reproduction and Stem Cell Engineering, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078 People's Republic of China
| | - Juan Du
- 1Institute of Reproduction and Stem Cell Engineering, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078 People's Republic of China.,2Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan 410078 People's Republic of China
| | - Yang Zhang
- 3School of Biological Sciences, Faculty of Science, The University of Hong Kong, Hong Kong, 999077 People's Republic of China
| | - Chuanchun Yang
- Cheerland Precision Biomed Co., Ltd., Shenzhen, Guangdong 518055 People's Republic of China
| | - Ge Lin
- 1Institute of Reproduction and Stem Cell Engineering, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078 People's Republic of China.,2Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan 410078 People's Republic of China
| | - Wenyong Zhang
- Southern University of Science and Technology, Shenzhen, Guangdong 518055 People's Republic of China
| | - Yue-Qiu Tan
- 1Institute of Reproduction and Stem Cell Engineering, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078 People's Republic of China.,2Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan 410078 People's Republic of China
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3
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Aleksiūnienė B, Matulevičiūtė R, Matulevičienė A, Burnytė B, Krasovskaja N, Ambrozaitytė L, Mikštienė V, Dirsė V, Utkus A, Kučinskas V. Opposite chromosome constitutions due to a familial translocation t(1;21)(q43;q22) in 2 cousins with development delay and congenital anomalies: A case report. Medicine (Baltimore) 2017; 96:e6521. [PMID: 28422838 PMCID: PMC5406054 DOI: 10.1097/md.0000000000006521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
RATIONALE Chromosomal rearrangements are the major cause of multiple congenital abnormalities and intellectual disability. PATIENT CONCERNS AND DIAGNOSIS We report 2 first cousins with unbalanced chromosomal aberrations of chromosomes 1 and 21, resulting from balanced familial translocation. Chromosome microarray analysis revealed 8.5 Mb1q43q44 duplication/21q22.2q22.3 deletion and 6.8 Mb 1q43q44 deletion/21q22.2q22.3 duplication. Among other features, cognitive and motor development delay and craniofacial anomalies are present in both patients, whereas congenital heart defect and hearing impairment is only present in patient carrying 1q43q44 duplication/21q22.2q22.3 deletion. LESSONS In this report, we provide detailed analysis of the phenotypic features of both patients as well as compare our data with previously published reports of similar aberrations and discuss possible functional effects of AKT3, CEP170, ZBTB18, DSCAM, and TMPRSS3 genes included in the deleted and/or duplicated regions. Partial trisomy 1q/monosomy 21q has only been reported once before, and this is the first report of partial monosomy 1q/trisomy 21q. The expressed phenotype of mirroring chromosomal aberrations in our patients supports the previous suggestion that the dosage effect of some of the genes included in deleted/duplicated regions may result in opposite phenotypes of the patients.
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Affiliation(s)
- Beata Aleksiūnienė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
| | | | - Aušra Matulevičienė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
| | - Birutė Burnytė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
| | | | - Laima Ambrozaitytė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
| | - Violeta Mikštienė
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
| | - Vaidas Dirsė
- Hematology, Oncology and Transfusion Medicine Centre; Vilnius University Hospital Santariskiu Klinikos, Vilnius, Lithuania
| | - Algirdas Utkus
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
| | - Vaidutis Kučinskas
- Department of Human and Medical Genetics, Faculty of Medicine, Vilnius University
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Wang J, Fu C, Zhang S, Luo J, Ouyang L, Xie B, Sun W, He S, Su J, Hu X, Fei D, Chen R, Fan X, Ou S, Chen S, Shen Y. A rare occurrence of two large de novo duplications on 1q42-q44 and 9q21.12-q21.33. Gene 2016; 594:59-65. [PMID: 27591971 DOI: 10.1016/j.gene.2016.08.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 08/09/2016] [Accepted: 08/25/2016] [Indexed: 01/15/2023]
Abstract
De novo partial distal 1q trisomy is uncommon and mostly occurs in combination with monosomy of another chromosome due to a parental translocation. Distal 1q trisomy co-occurring with another de novo duplication on a separate chromosome is extremely rare. Here, we reported a patient carrying two large de novo interstitial duplications including a 20Mb duplication at 1q42-q44 and a 14.2Mb duplication at 9q21.12-q21.33. The patient presented with features of pre- and postnatal growth retardation, low birth weight, failure to thrive, developmental delay and frequent infection. Her dysmorphic features included macrocephaly, prominent forehead, triangular face, wide fontanelle, hypertelorism, flat nasal bridge, tented mouth, micrognathia, protruding and low-set ears, slender limbs with toe-walking appearance. In addition, she presented with subdural hematoma. The clinical presentations of this patient are mostly consistent with those of distal 1q trisomy syndrome or 9q interstitial duplication. The interstitial 1q trisomy may have contributed to the macrocephaly, prominent forehead and limb abnormalities of our patient. Either or both de novo duplications could have contributed to the features of growth retardation, developmental delay and dysmorphic features including hypertelorism, low-set ears and abnormal nose/nasal bridge.
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Affiliation(s)
- Jin Wang
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Chunyun Fu
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Shujie Zhang
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Jingsi Luo
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Luping Ouyang
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Bobo Xie
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Weijia Sun
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Sheng He
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Jiasun Su
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Xuyun Hu
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Dongmei Fei
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Rongyu Chen
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Xin Fan
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Shan Ou
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China
| | - Shaoke Chen
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China.
| | - Yiping Shen
- Laboratory of Genetics and Metabolism, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Guangxi Birth Defects Prevention and Control Institute, Nanning 530003, Guangxi, People's Republic of China; Department of Laboratory Medicine, Department of Pathology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, United States; Claritas Genomics, Cambridge, MA 02139, United States.
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5
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Morris MLM, Baroneza JE, Teixeira P, Medina CTN, Cordoba MS, Versiani BR, Roese LL, Freitas EL, Fonseca ACS, Dos Santos MCG, Pic-Taylor A, Rosenberg C, Oliveira SF, Ferrari I, Mazzeu JF. Partial 1q Duplications and Associated Phenotype. Mol Syndromol 2016; 6:297-303. [PMID: 27022331 DOI: 10.1159/000443599] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2015] [Indexed: 11/19/2022] Open
Abstract
Duplications of the long arm of chromosome 1 are rare. Distal duplications are the most common and have been reported as either pure trisomy or unbalanced translocations. The paucity of cases with pure distal 1q duplications has made it difficult to delineate a partial distal trisomy 1q syndrome. Here, we report 2 patients with overlapping 1q duplications detected by G-banding. Array CGH and FISH were performed to characterize the duplicated segments, exclude the involvement of other chromosomes and determine the orientation of the duplication. Patient 1 presents with a mild phenotype and carries a 22.5-Mb 1q41q43 duplication. Patient 2 presents with a pure 1q42.13qter inverted duplication of 21.5 Mb, one of the smallest distal 1q duplications ever described and one of the few cases characterized by array CGH, thus contributing to a better characterization of distal 1q duplication syndrome.
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Affiliation(s)
| | - José E Baroneza
- Universidade Positivo, São Paulo, Brazil; Programa de Pós-graduação em Biologia Celular e Molecular, Universidade Federal do Paraná, Curitiba São Paulo, Brazil
| | | | - Cristina T N Medina
- Secretaria de Estado de Saúde do Distrito Federal, Brasilia, São Paulo, Brazil
| | - Mara S Cordoba
- Secretaria de Estado de Saúde do Distrito Federal, Brasilia, São Paulo, Brazil
| | - Beatriz R Versiani
- Secretaria de Estado de Saúde do Distrito Federal, Brasilia, São Paulo, Brazil
| | - Liege L Roese
- Rede Sarah de Hospitais de Reabilitação, Brasília, São Paulo, Brazil
| | - Erika L Freitas
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Ana C S Fonseca
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Maria C G Dos Santos
- Programa de Pós-graduação em Biologia Celular e Molecular, Universidade Federal do Paraná, Curitiba São Paulo, Brazil
| | - Aline Pic-Taylor
- Programa de Pós-graduação em Ciências da Saúde, São Paulo, Brazil; Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, São Paulo, Brazil
| | - Carla Rosenberg
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Silviene F Oliveira
- Programa de Pós-graduação em Ciências da Saúde, São Paulo, Brazil; Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, São Paulo, Brazil
| | - Iris Ferrari
- Faculdade de Medicina, Universidade de Brasília, São Paulo, Brazil
| | - Juliana F Mazzeu
- Programa de Pós-graduação em Ciências da Saúde, São Paulo, Brazil; Faculdade de Medicina, Universidade de Brasília, São Paulo, Brazil
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6
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Milosevic J, El Khattabi L, Roubergue A, Coussement A, Doummar D, Cuisset L, Le Tessier D, Flageul B, Viot G, Lebbar A, Dupont JM. Inverted duplication with deletion: first interstitial case suggesting a novel undescribed mechanism of formation. Am J Med Genet A 2014; 164A:3180-6. [PMID: 25257167 DOI: 10.1002/ajmg.a.36777] [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: 02/24/2014] [Accepted: 08/23/2014] [Indexed: 11/09/2022]
Abstract
Inverted duplications with terminal deletions are a well-defined family of complex rearrangements already observed for most of chromosome extremities. Several mechanisms have been suggested which could lead to their occurrence, either through non-homologous end joining, non-allelic homologous recombination, or more recently through an intrastrand fold-back mechanism. We describe here a patient with intellectual disability and pharmacoresistant epilepsy, for which array CGH analysis showed the first interstitial case of inverted duplication with deletion on chromosome 1p. Furthermore, SNP array analysis revealed an associated segmental isodisomy for the distal part of 1p, which led us to consider a replicative mechanism to explain this abnormality. This observation extends the range of this once telomeric rearrangement.
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Affiliation(s)
- J Milosevic
- Faculté de Médecine, Laboratoire de Cytogénétique Constitutionnelle, Hôpital Cochin, APHP, Université Paris Descartes, Paris, France
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7
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Cervantes A, García-Delgado C, Fernández-Ramírez F, Galaz-Montoya C, Morales-Jiménez AB, Nieto-Martínez K, Gómez-Laguna L, Villa-Morales J, Quintana-Palma M, Berúmen J, Kofman S, Morán-Barroso VF. Trisomy 1q41-qter and monosomy 3p26.3-pter in a family with a translocation (1;3): further delineation of the syndromes. BMC Med Genomics 2014; 7:55. [PMID: 25223409 PMCID: PMC4170088 DOI: 10.1186/1755-8794-7-55] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 09/10/2014] [Indexed: 11/16/2022] Open
Abstract
Background Trisomy 1q and monosomy 3p deriving from a t(1;3) is an infrequent event. The clinical characteristics of trisomy 1q41-qter have been described but there is not a delineation of the syndrome. The 3p25.3-pter monosomy syndrome (MIM 613792) characteristics include low birth weight, microcephaly, psychomotor and growth retardation and abnormal facies. Case presentation A 2 years 8 months Mexican mestizo male patient was evaluated due to a trisomy 1q and monosomy 3p derived from a familial t(1;3)(q41;q26.3). Four female carriers of the balanced translocation and one relative that may have been similarly affected as the proband were identified. The implicated chromosomal regions were defined by microarray analysis, the patient had a trisomy 1q41-qter of 30.3 Mb in extension comprising about 240 protein coding genes and a monosomy 3p26.3-pter of 1.7 Mb including only the genes CNTN6 (MIM 607220) and CHL1 (MIM 607416), which have been implicated in dendrite development. Their contribution to the phenotype, regarding the definition of trisomy 1q41-qter and monosomy 3p26.3-pter syndromes are discussed. Conclusion We propose that a trisomy 1q41-qter syndrome should be considered in particular when the following characteristics are present: postnatal growth delay, macrocephaly, wide fontanelle, triangular facies, frontal bossing, thick eye brows, down slanting palpebral fissures, hypertelorism, flat nasal bridge, hypoplasic nostrils, long filtrum, high palate, microretrognathia, ear abnormalities, neural abnormalities (in particular ventricular dilatation), psychomotor developmental delay and mental retardation. Our patient showed most of these clinical characteristics with exception of macrocephaly, possibly due to a compensatory effect by haploinsufficiency of the two genes lost from 3p. The identification of carriers has important implications for genetic counseling as the risk of a new born with either a der(3) or der(1) resulting from an adjacent-1 segregation is of 25% for each of them, as the products of adjacent-2 or 3:1 segregations are not expected to be viable.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Verónica F Morán-Barroso
- Departamento de Genética, Hospital Infantil de México Federico Gómez, Calle Dr, Márquez 162, Col, Doctores, Del, Cuauhtémoc, 06720 México, D,F,, México.
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8
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Meloni VA, Takeno SS, Pilla AL, de Mello CB, Melaragno MI, Kulikowski LD. Trisomy 1q32 and monosomy 11q25 associated with congenital heart defect: cytogenomic delineation and patient fourteen years follow-up. Mol Cytogenet 2014; 7:57. [PMID: 25184002 PMCID: PMC4151026 DOI: 10.1186/s13039-014-0057-8] [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: 06/11/2014] [Accepted: 08/04/2014] [Indexed: 01/06/2023] Open
Abstract
Background Partial duplication 1q is a rare cytogenetic anomaly frequently associated to deletion of another chromosome, making it difficult to define the precise contribution of the different specific chromosomal segments to the clinical phenotype. Case presentation We report a clinical and cytogenomic study of a patient with multiple congenital anomalies, heart defect, neuromotordevelopment delay, intellectual disability, who presents partial trisomy 1q32 and partial monosomy 11q25 inherited from a paternal balanced translocation identified by chromosome microarray and fluorescence in situ hybridization. Conclusion Compared to patients from the literature, the patient’s phenotype is more compatible to the 1q32 duplication’s clinical phenotype, although some clinical features may also be associated to the deleted segment on chromosome 11. This is the smallest 11q terminal deletion ever reported and the first association between 1q32.3 duplication and 11q25 deletion in the literature.
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Affiliation(s)
- Vera Ayres Meloni
- Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Sylvia Satomi Takeno
- Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Ana Luiza Pilla
- Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Claudia Berlim de Mello
- Children's Interdisciplinary Neuropsychological Center, AFIP, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Maria Isabel Melaragno
- Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Leslie Domenici Kulikowski
- Department of Pathology, Cytogenomics Lab, LIM 03, Universidade de São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 155, 2° andar, bloco 12, sala 7, São Paulo, SP, Brazil ; Human Reproduction and Genetics Center, Department of Collective Health, Faculdade de Medicina do ABC, Santo André, SP, Brazil
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9
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Petti M, Samanich J, Pan Q, Huang CK, Reinmund J, Farooqi S, Morrow B, Babcock M. Molecular characterization of an interstitial deletion of 1p31.3 in a patient with obesity and psychiatric illness and a review of the literature. Am J Med Genet A 2011; 155A:825-32. [PMID: 21416589 DOI: 10.1002/ajmg.a.33869] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 11/22/2010] [Indexed: 01/14/2023]
Abstract
We report on the clinical and array-based characterization of an interstitial 1p31.3 deletion in a 15-year-old male patient with obesity, behavioral problems including multiple psychiatric diagnoses, mild intellectual impairment, facial dysmorphism, and a strong family history of psychiatric illness. The deletion breakpoints were determined by molecular karyotyping, revealing a 3.2 Mb excision. Patients previously reported with hemizygous deletions including this cytogenetic band had intellectual impairment and some facial features that overlap with our patient's phenotype. However, their deletions were larger, encompassing several cytogenetic bands, making this case the smallest deletion to date that we are aware of sharing these phenotypic characteristics. There are 17 genes that map to the interval. Two genes within the interval, LEPR and PDE4B, are interesting candidates for these phenotypes because of their potential role in obesity and psychiatric illness, respectively. Identification of the smaller deletion underscores the importance of combining clinical investigation and array comparative genomic hybridization analysis for appropriate diagnosis, genetic counseling and potentially for prenatal diagnosis.
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Affiliation(s)
- Marilena Petti
- Division of Translational Genetics, Department of Genetics, Albert Einstein College of Medicine, Bronx, New York, USA
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Hanemaaijer N, Dijkhuizen T, Haadsma M, Boeve M, Boon M, Hordijk R, Kok K, Sikkema-Raddatz B, van Ravenswaaij-Arts CMA. A 649 kb microduplication in 1p34.1, including POMGNT1, in a patient with microcephaly, coloboma and laryngomalacia; and a review of the literature. Eur J Med Genet 2009; 52:116-9. [PMID: 19452620 DOI: 10.1016/j.ejmg.2009.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report on a male patient with intra-uterine growth retardation, microcephaly, coloboma, laryngomalacia and developmental delay. Array CGH analysis revealed a 649 kb duplication on chromosome 1p34.1. Only five patients with overlapping duplications have been reported thus far. Ten known genes are located in the duplicated region, including the POMGNT1 gene encoding for O-mannose beta-1,2-N-acetylglucosaminyltransferase. This gene, mutated in muscle-eye-brain disease, might be causative for the observed phenotype in our patient.
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Affiliation(s)
- Nicolien Hanemaaijer
- Department of Genetics, CB50, University Medical Centre Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
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11
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Balasubramanian M, Barber JCK, Collinson MN, Huang S, Maloney VK, Bunyan D, Foulds N. Inverted duplication of 1q32.1 to 1q44 characterized by array CGH and review of distal 1q partial trisomy. Am J Med Genet A 2009; 149A:793-7. [PMID: 19248177 DOI: 10.1002/ajmg.a.32463] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Meena Balasubramanian
- Wessex Clinical Genetics Service, Southampton University Hospitals Trust, Princess Anne Hospital, Southampton, UK.
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Migeon BR, Pappas K, Stetten G, Trunca C, Jacobs PA. X inactivation in triploidy and trisomy: the search for autosomal transfactors that choose the active X. Eur J Hum Genet 2007; 16:153-62. [PMID: 17971834 DOI: 10.1038/sj.ejhg.5201944] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Only one X chromosome functions in diploid human cells irrespective of the sex of the individual and the number of X chromosomes. Yet, as we show, more than one X is active in the majority of human triploid cells. Therefore, we suggest that (i) the active X is chosen by repression of its XIST locus, (ii) the repressor is encoded by an autosome and is dosage sensitive, and (iii) the extra dose of this key repressor enables the expression of more than one X in triploid cells. Because autosomal trisomies might help locate the putative dosage sensitive trans-acting factor, we looked for two active X chromosomes in such cells. Previously, we reported that females trisomic for 18 different human autosomes had only one active X and a normal inactive X chromosome. Now we report the effect of triplication of the four autosomes not studied previously; data about these rare trisomies - full or partial - were used to identify autosomal regions relevant to the choice of active X. We find that triplication of the entire chromosomes 5 and 11 and parts of chromosomes 1 and 19 is associated with normal patterns of X inactivation, excluding these as candidate regions. However, females with inherited triplications of 1p21.3-q25.3, 1p31 and 19p13.2-q13.33 were not ascertained. Thus, if a single key dose-sensitive gene induces XIST repression, it could reside in one of these locations. Alternatively, more than one dosage-sensitive autosomal locus is required to form the repressor complex.
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Affiliation(s)
- Barbara R Migeon
- The McKusick - Nathans Institute of Genetic Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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Coccé MC, Villa O, Obregon MG, Salido M, Barreiro C, Solé F, Gallego MS. Duplication dup(1)(q41q44) defined by fluorescence in situ hybridization: delineation of the ‘trisomy 1q42→qter syndrome’. Cytogenet Genome Res 2007; 118:84-6. [PMID: 17901705 DOI: 10.1159/000106446] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2006] [Accepted: 03/07/2007] [Indexed: 11/19/2022] Open
Abstract
We report on a novel case of pure partial tandem duplication 1q42q43 confirmed by fluorescence in situ hybridization (FISH). We compare the manifestations of our patient with similar cases previously reported. We conclude that the most common clinical manifestations of trisomy 1q42qter are prenatal and postnatal growth retardation, relative macrocephaly, triangular face, prominent forehead, broad nasal bridge, abnormal philtrum, micro/retrognathia, cardiac defects and mental retardation. We would like to emphasize the importance of the FISH technique in the identification of the duplicated segment.
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Affiliation(s)
- M C Coccé
- Laboratorio de Citogenética, Servicio de Genética, Hospital de Pediatría Prof. Dr. J.P. Garrahan, Buenos Aires, Argentina.
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