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Iordanescu II, Neacsu AT, Catana A, Barabas-CuzmicI Z, Suciu V, Dragomir C, Voicu DE, Severin E, Militaru MS. Challenging diagnoses of tetraploidy/diploidy and trisomy 12: utility of first-tier prenatal testing methods. Front Genet 2023; 14:1258752. [PMID: 38034493 PMCID: PMC10684745 DOI: 10.3389/fgene.2023.1258752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023] Open
Abstract
Introduction: Chromosome mosaicism and low-grade mosaicism present a challenge for diagnosis in the era of SNP array and NGS. Tetraploidy is a rare numerical chromosomal abnormality characterized by the presence of four copies of each chromosome. The prevalence of tetraploidy/diploidy mosaicism cases is extremely rare in the human population. Accurate estimates of the frequency of this chromosomal anomaly are lacking due to its classification as an extremely rare and difficult-to-detect condition. Methods: In this report, we describe two cases involving challenging diagnoses of tetraploidy/diploidy and trisomy 12. We utilized advanced genetic testing techniques, including SNP array, to examine the chromosomal abnormalities in these cases. We compared the results from SNP array to conventional G band karyotyping to assess the utility of first-tier prenatal testing methods. Results:Our analysis revealed two cases of tetraploidy/diploidy and trisomy 12 with atypical presentations. SNP array analysis provided higher resolution and more precise information about the chromosomal anomalies in these cases compared to conventional G band karyotyping. Additionally, the prevalence of tetraploidy/diploidy mosaicism was confirmed to be extremely rare in the population. Discussion: Low-level mosaicism is difficult to diagnose, and in many cases, it has traditionally been identified through techniques such as G band karyotype or FISH. Microarray has become an invaluable diagnostic tool for detecting chromosomal abnormalities, offering high-resolution insights. However, it may not always be able to detect rare occurrences of tetraploidy or tetraploidy/diploidy mosaicism. As a result, it is recommended to perform a G band karyotype analysis after obtaining a negative microarray result before considering other diagnostic methods with a potentially higher yield of diagnosis. For the detection of low-level mosaicism, combined diagnostic methods should be considered. The diagnosis of mosaicism is a multistep process that can be time-consuming, often requiring the application of more than one diagnostic technique. This approach is crucial for accurate diagnosis and comprehensive patient care. Further research is warranted to better understand the underlying mechanisms of these rare chromosomal anomalies and to develop more effective diagnostic strategies for challenging cases.
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Affiliation(s)
- Irina Ioana Iordanescu
- Genetics Department “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
- Genetics Department Laboratory, Regina Maria Hospital, Romania
| | | | - Andreea Catana
- Genetics Department Laboratory, Regina Maria Hospital, Romania
- Genetics Departament, University of Medicine and Pharmacy “Iuliu Hatieganu”, Cluj-Napoca, Romania
| | | | | | | | | | - Emilia Severin
- Genetics Department “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - Mariela Sanda Militaru
- Genetics Department Laboratory, Regina Maria Hospital, Romania
- Genetics Departament, University of Medicine and Pharmacy “Iuliu Hatieganu”, Cluj-Napoca, Romania
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2
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Martínez-Hernández A, Martínez-Anaya D, Durán-McKinster C, Del Castillo-Ruiz V, Navarrete-Meneses P, Córdova EJ, Villegas-Torres BE, Ruiz-Herrera A, Juárez-Velázquez R, Yokoyama-Rebollar E, Cervantes-Barragán D, Pedraza-Meléndez A, Orozco L, Pérez-Vera P, Salas-Labadía C. Pigmentary mosaicism as a recurrent clinical manifestation in three new patients with mosaic trisomy 12 diagnosed postnatally: cases report and literature review. BMC Med Genomics 2022; 15:224. [PMCID: PMC9620619 DOI: 10.1186/s12920-022-01382-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 10/22/2022] [Indexed: 11/10/2022] Open
Abstract
Background To date, only twenty-one cases diagnosed postnatally with mosaic trisomy 12 have been reported. The most frequent phenotypic manifestations are developmental delay, dysmorphic facial features, congenital heart defects, digital alterations, and pigmentary disorders. In the present report, detailed clinical and genetic profiles of three unrelated new patients with mosaic trisomy 12 are described and compared with previously reported cases. Case presentation In the present report, we include the clinical, cytogenetic, and molecular description of three Mexican patients diagnosed postnatally with mosaic trisomy 12. At phenotypic level, the three patients present with developmental delay, dysmorphic facial features, congenital heart defects and skin pigmentary anomalies. Particularly, patient 1 showed unique eye alterations as bilateral distichiasis, triple rows of upper lashes, and digital abnormalities. In patient 2 redundant skin, severe hearing loss, and hypotonia were observed, and patient 3 presented with hypertelorism and telecanthus. Hyperpigmentation with disseminated pigmentary anomalies is a common trait in all of them. The cytogenetic study was carried out under the strict criteria of analysis, screening 50–100 metaphases from three different tissues, showing trisomy 12 mosaicism in at least one of the three different tissues analyzed. With SNParray, the presence of low-level mosaic copy number variants not previously detected by cytogenetics, and uniparental disomy of chromosome 12, was excluded. STR markers allowed to confirm the absence of uniparental disomy as well as to know the parental origin of supernumerary chromosome 12. Conclusions The detailed clinical, cytogenetic, and molecular description of these three new patients, contributes with relevant information to delineate more accurately a group of patients that show a heterogeneous phenotype, although sharing the same chromosomal alteration. The possibility of detecting mosaic trisomy 12 is directly associated with the sensitivity of the methodology applied to reveal the low-level chromosomal mosaicism, as well as with the possibility to perform the analysis in a suitable tissue.
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Affiliation(s)
- A. Martínez-Hernández
- grid.452651.10000 0004 0627 7633Laboratorio de Inmunogenómica y Enfermedades Metabólicas, Instituto Nacional de Medicina Genómica SS, Ciudad de Mexico, México
| | - D. Martínez-Anaya
- grid.419216.90000 0004 1773 4473Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, 04530 México
| | - C. Durán-McKinster
- grid.419216.90000 0004 1773 4473Departamento de Dermatología, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - V. Del Castillo-Ruiz
- grid.419216.90000 0004 1773 4473Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - P. Navarrete-Meneses
- grid.419216.90000 0004 1773 4473Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, 04530 México
| | - E. J. Córdova
- grid.452651.10000 0004 0627 7633Consorcio de Oncogenómica, Instituto Nacional de Medicina Genómica SS, Ciudad de Mexico, México
| | - B. E. Villegas-Torres
- grid.452651.10000 0004 0627 7633Instituto Nacional de Medicina Genómica SS, Ciudad de Mexico, México
| | - A. Ruiz-Herrera
- grid.414465.6Hospital de Especialidades Pediátrico de León, León, Guanajuato, México
| | - R. Juárez-Velázquez
- grid.419216.90000 0004 1773 4473Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, 04530 México
| | - E. Yokoyama-Rebollar
- grid.419216.90000 0004 1773 4473Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - D. Cervantes-Barragán
- grid.502779.e0000 0004 0633 6373Hospital Central Sur de Alta Especialidad, PEMEX, Ciudad de Mexico, México
| | - A. Pedraza-Meléndez
- grid.9486.30000 0001 2159 0001Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de Mexico, México
| | - L. Orozco
- grid.452651.10000 0004 0627 7633Laboratorio de Inmunogenómica y Enfermedades Metabólicas, Instituto Nacional de Medicina Genómica SS, Ciudad de Mexico, México
| | - P. Pérez-Vera
- grid.419216.90000 0004 1773 4473Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, 04530 México
| | - C. Salas-Labadía
- grid.419216.90000 0004 1773 4473Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, 04530 México
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3
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Bonasoni P, Tonni G, Comitini G, Barbieri V, Rinaldini M, Marinelli M. Mosaic Trisomy 12: Prenatal Diagnosis at Amniocentesis and Molecular Genetic Analysis on Fetal Tissues. Fetal Pediatr Pathol 2022; 41:299-305. [PMID: 32609035 DOI: 10.1080/15513815.2020.1786199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Background: Mosaic trisomy 12 is a genetic condition with few cases diagnosed prenatally and postnatally. Phenotypic variability is wide ranging from normal patients to severe congenital anomalies. Case report: A 35-year-old woman underwent amniocentesis at 17 weeks of gestation because of advanced maternal age. Prenatal ultrasound was negative. Cultured amniocytes revealed a karyotype of 47,XX,+12/46,XX. Parents opted for termination of pregnancy at 22 weeks. Postmortem revealed dysmorphic face; hands with broad thumbs and incomplete transverse palmar creases; partial anomalous pulmonary venous return, intestinal malrotation, and bicornuate uterus. Histologically, no anomalies were identified. Cytogenetic analyses on fetal tissues detected mosaic trisomy 12 in thymus, lung, brain, kidney, placenta, and cord blood. Discussion/Conclusion: We report a new case of mosaic trisomy 12 with non-lethal morphological findings not previously described. Although prenatal ultrasound may be negative, genetic counseling should consider minor abnormalities and widespread presence of trisomic cell lines in various internal organs.
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Affiliation(s)
- Paola Bonasoni
- Pathology Unit, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Gabriele Tonni
- Department of Obstetrics & Gynaecology, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Giuseppina Comitini
- Department of Obstetrics & Gynaecology, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Veronica Barbieri
- Medical Genetics Laboratory, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Monia Rinaldini
- Medical Genetics Laboratory, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Maria Marinelli
- Medical Genetics Laboratory, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
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Freitas M, Santos AD, Barbosa L, Figueiredo AD, Pellegrini S, Santos N, Paiva I, Rangel-Pozzo A, Sisdelli L, Mai S, Land M, Ribeiro M, Ribeiro M. Cellular consequences of small supernumerary marker chromosome derived from chromosome 12: mosaicism in daughter and father. Braz J Med Biol Res 2022; 55:e12072. [PMID: 35766708 PMCID: PMC9224815 DOI: 10.1590/1414-431x2022e12072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/14/2022] [Indexed: 11/21/2022] Open
Abstract
Constitutional genomic imbalances are known to cause malformations, disabilities, neurodevelopmental delay, and dysmorphia and can lead to dysfunctions in the cell cycle. In extremely rare genetic conditions such as small supernumerary marker chromosomes (sSMC), it is important to understand the cellular consequences of this extra marker, as well the factors that contribute to their maintenance or elimination through successive cell cycles and phenotypic impact. The study of chromosomal mosaicism provides a natural model to characterize the effect of aneuploidy on genome stability and compare cells with the same genetic background and environment exposure, but differing in the presence of sSMC. Here, we report the functional characterization of different cell lines from two familial patients with mosaic sSMC derived from chromosome 12. We performed studies of proliferation dynamics, stability, and variability of these cells using fluorescent in situ hybridization (FISH), sister chromatid exchanges (SCE), and conventional staining. We also quantified the telomere-related genomic instability of sSMC cells using 3D telomeric profile analysis by quantitative-FISH. sSMC cells exhibited differences in the cell cycle dynamics compared to normal cells. First, the sSMC cells exhibited lower proliferation index and higher frequency of SCE than normal cells, associated with a higher level of chromosomal instability. Second, sSMC cells exhibited more telomeric-related genomic instability. Lastly, the differences of sSMC cells distribution among tissues could explain different phenotypic repercussions observed in patients. These results will help in our understanding of the sSMC stability, maintenance during cell cycle, and the cell cycle variables involved in the different phenotypic manifestations.
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Affiliation(s)
- M.O. Freitas
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil; Universidade Federal do Rio de Janeiro, Brasil
| | - A.O. dos Santos
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil; Universidade Federal do Rio de Janeiro, Brasil
| | - L.S. Barbosa
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil
| | - A.F. de Figueiredo
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil; Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil
| | - S.P. Pellegrini
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil
| | - N.C.K. Santos
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil
| | - I.S. Paiva
- Universidade do Grande Rio, Brasil; UNIFESO (Centro Educacional Serra dos Orgãos), Brasil
| | - A. Rangel-Pozzo
- CancerCare Manitoba Research Institute, University of Manitoba, Cancer Care Manitoba, Canada
| | - L. Sisdelli
- CancerCare Manitoba Research Institute, University of Manitoba, Cancer Care Manitoba, Canada; Universidade Federal de São Paulo, Brasil
| | - S. Mai
- CancerCare Manitoba Research Institute, University of Manitoba, Cancer Care Manitoba, Canada
| | - M.G.P. Land
- Universidade Federal do Rio de Janeiro, Brasil; Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil
| | - M.G. Ribeiro
- Universidade Federal do Rio de Janeiro, Brasil; Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil
| | - M.C.M. Ribeiro
- Instituto de Puericultura e Pediatria Martagão Gesteira, Universidade Federal do Rio de Janeiro, Brasil; Campus Duque de Caxias, Universidade Federal do Rio de Janeiro, Brasil
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5
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Chen CP, Wu CY, Chern SR, Chen SW, Wu FT, Chen WL, Chen YY, Wang W. Prenatal diagnosis of mosaicism for trisomy 12 in a single colony at amniocentesis in a pregnancy with a favorable outcome. Taiwan J Obstet Gynecol 2021; 59:604-606. [PMID: 32653138 DOI: 10.1016/j.tjog.2020.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2020] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVE We present prenatal diagnosis of mosaicism for trisomy 12 in a single colony at amniocentesis with a favorable outcome. CASE REPORT A 36-year-old woman underwent amniocentesis at 18 weeks of gestation because of advanced maternal age. Amniocentesis revealed a karyotype of 47,XY,+12[1]/46,XY[14]. In 15 colonies of cultured amniocytes, all three cells in one colony had the karyotype of 47,XY,+12, while the rest 14 colonies had the karyotype of 46,XY. The parental karyotypes were normal. Prenatal ultrasound findings were unremarkable. Polymorphic DNA marker analysis using the DNAs extracted from cultured amniocytes and parental bloods excluded uniparental disomy (UPD) 12. At 37 weeks of gestation, a healthy 2,828-g male baby was delivered with no phenotypic abnormality. The cord blood had a karyotype of 46,XY in 40/40 lymphocytes. Postnatal interphase fluorescence in situ hybridization (FISH) analysis on buccal cells and urinary cells revealed normal signals in 72/72 buccal cells, and trisomy 12 signals in 1/47 (2.1%) urinary cells compared with 0% (0/75 cells) of trisomy 12 signals in the normal control. CONCLUSION Mosaicism for trisomy 12 in a single colony at amniocentesis without UPD 12 and fetal ultrasound abnormalities can be associated with a favorable outcome.
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Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang-Ming University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
| | - Chao-Yun Wu
- Department of Obstetrics and Gynecology, Taitung MacKay Memorial Hospital, Tatung, Taiwan
| | - Schu-Rern Chern
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Shin-Wen Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Fang-Tzu Wu
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wen-Lin Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yun-Yi Chen
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wayseen Wang
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; Department of Bioengineering, Tatung University, Taipei, Taiwan
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6
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Garza-Mayén G, Ulloa-Avilés V, Villarroel CE, Navarrete-Meneses P, Lieberman-Hernández E, Abreu-González M, Márquez-Quiroz L, Azotla-Vilchis C, Cifuentes-Goches JC, Del Castillo-Ruiz V, Durán-McKinster C, Pérez-Vera P, Salas-Labadía C. UPD(14)mat and UPD(14)mat in concomitance with mosaic small supernumerary marker chromosome 14 in two new patients with Temple syndrome. Eur J Med Genet 2021; 64:104199. [PMID: 33746039 DOI: 10.1016/j.ejmg.2021.104199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 03/03/2021] [Accepted: 03/14/2021] [Indexed: 10/21/2022]
Abstract
Temple syndrome (TS14) can be originated by maternal uniparental disomy (UPD(14)mat), paternal deletion, or epimutation, leading to disturbances in 14q32.2 imprinted region. The most frequent phenotypic manifestations are prenatal and postnatal growth failure, hypotonia, developmental delay, small hands/feet, precocious puberty, and truncal obesity. However, the diagnosis can be challenging due to the clinical overlap with other imprinting disorders such as Silver-Russell or Prader-Willi syndromes. Although rare, TS14 has been also reported in patients with concomitant UPD(14)mat and mosaic trisomy 14. In the present report, the clinical and genetic profiles of two new patients with TS14 are described. SNParray and MS-MLPA, allowed the determination of segmental UPD(14)mat and the hypomethylation of MEG3 gene. Additionally, in one of our patients we also observed by cytogenetics a small supernumerary marker chromosome that led to partial trisomy 14 in mosaic. Only few patients with concomitant UPD(14)mat and mosaic partial trisomy 14 have been reported. Our patients share cardinal TS14 phenotypic features that are associated to the genetic abnormalities detected; however, we also observed some clinical features such as fatty liver disease that had not previously been reported as part of this syndrome. The detailed clinical, cytogenetical and molecular description of these two new patients, contributes to a more accurately delineation of this syndrome.
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Affiliation(s)
- G Garza-Mayén
- Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, Mexico.
| | - V Ulloa-Avilés
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, 04530, Mexico
| | - C E Villarroel
- Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, Mexico
| | - P Navarrete-Meneses
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, 04530, Mexico
| | - E Lieberman-Hernández
- Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, Mexico
| | - M Abreu-González
- Genos Médica, Centro Especializado en Genética. Ciudad de México, Mexico
| | - L Márquez-Quiroz
- Genos Médica, Centro Especializado en Genética. Ciudad de México, Mexico
| | - C Azotla-Vilchis
- Genos Médica, Centro Especializado en Genética. Ciudad de México, Mexico
| | | | - V Del Castillo-Ruiz
- Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, Mexico
| | - C Durán-McKinster
- Departamento de Dermatología, Instituto Nacional de Pediatría. Ciudad de México, Mexico
| | - P Pérez-Vera
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, 04530, Mexico.
| | - C Salas-Labadía
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría. Ciudad de México, 04530, Mexico.
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7
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Chen CP, Wang LK, Chern SR, Wu PS, Chen SW, Wu FT, Chen YY, Wang W. Prenatal diagnosis of mosaicism for double trisomies of trisomy 11 and trisomy 12 in a single colony at amniocentesis in a pregnancy with a favorable outcome. Taiwan J Obstet Gynecol 2021; 59:443-445. [PMID: 32416896 DOI: 10.1016/j.tjog.2020.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2020] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE We present prenatal diagnosis of mosaicism for double trisomies of trisomy 11 and trisomy 12 in a single colony at amniocentesis with a favorable outcome. CASE REPORT A 23-year-old woman underwent amniocentesis at 24 weeks of gestation because of congenital bowel dilation in the fetus. Amniocentesis revealed a karyotype of 48,XX,+11,+12[1]/46,XX[24]. In 25 colonies of cultured amniocytes, all five cells in one colony had the karyotype of 48,XX,+11,+12, while the rest 24 colonies had the karyotype of 46,XX. The parental karyotypes were normal. Repeat amniocentesis was performed at 26 weeks of gestation. Interphase fluorescence in situ hybridization (FISH), array comparative genomic hybridization (aCGH) and quantitative fluorescent polymerase chain reaction (QF-PCR) were applied on the uncultured amniocytes, and conventional cytogenetic analysis was applied on cultured amniocytes. Interphase FISH analysis showed no trisomy 11 signal and no trisomy 12 signal in 102 uncultured amniocytes. QF-PCR analysis excluded uniparental disomy (UPD) 11 and UPD 12. aCGH analysis showed no genomic imbalance. The cultured amniocytes at repeat amniocentesis had the karyotype of 46,XX in 13/13 colonies. At term, a healthy 3445-g female baby was delivered with no phenotypic abnormality except imperforate anus and a perianal fistula. The cord blood had a karyotype of 46,XX in 40/40 lymphocytes. Postnatal interphase FISH analysis of buccal cells and urinary cells revealed trisomies 11 and 12 signals in 11/111 (9.9%) buccal cells compared with 3% in normal control, and in 3/103 (2.9%) urinary cells compared with 0.98% in normal control. CONCLUSION Mosaicism for double trisomies of trisomy 11 and trisomy 12 in a single colony at amniocentesis without UPD 11 and UPD 12 can be associated with a favorable outcome.
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Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang-Ming University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
| | - Liang-Kai Wang
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Schu-Rern Chern
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | | | - Shin-Wen Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Fang-Tzu Wu
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yun-Yi Chen
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wayseen Wang
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; Department of Bioengineering, Tatung University, Taipei, Taiwan
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8
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Mosaic trisomy 12 diagnosed in a female patient: clinical features, genetic analysis, and review of the literature. World J Pediatr 2021; 17:438-448. [PMID: 34260009 PMCID: PMC8363535 DOI: 10.1007/s12519-021-00438-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 06/11/2021] [Indexed: 11/30/2022]
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9
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Volleth M, Zenker M, Joksic I, Liehr T. Long-term Culture of EBV-induced Human Lymphoblastoid Cell Lines Reveals Chromosomal Instability. J Histochem Cytochem 2020; 68:239-251. [PMID: 32108534 DOI: 10.1369/0022155420910113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
To preserve material for future genetic studies, human B-lymphocytes from whole blood samples are routinely transformed into lymphoblastoid cell lines (LCLs) by in vitro infection with Epstein-Barr virus. To determine the rate and frequency of chromosomal changes during long-term culture, we established 10 LCLs (from eight individuals). Before transformation, these cases showed a normal karyotype (three cases), a small supernumerary marker chromosome (three cases), or an aberrant karyotype (four cases). Chromosome analyses were performed at 8-week intervals over a period of at least 1 year, up to 3 years. Surprisingly, we demonstrate that chromosomal instability is the rule, rather than the exception, during long-term culture of LCLs. The most commonly observed acquired clonal aberration was trisomy 12, which emerged in all cell lines within 21 to 49 weeks after infection. Telomeric fusions indicating telomere shortening were found after ~21 weeks. After 1 year of cultivation, the proportion of cells with the original karyotype decreased to ≤10% in 7 of the 10 cell lines. To preserve cells with aberrant genomes, we conclude the cultivation time of LCLs must be restricted to the absolute minimum time required.
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Affiliation(s)
- Marianne Volleth
- Institute of Human Genetics, University Hospital, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Martin Zenker
- Institute of Human Genetics, University Hospital, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Ivana Joksic
- Gynecology and Obstetrics Clinic, GAK Narodni front, Belgrade, Serbia
| | - Thomas Liehr
- Institute of Human Genetics, Jena University Hospital, Friedrich-Schiller University Jena, Jena, Germany
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10
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Cordier AG, Russo FM, Deprest J, Benachi A. Prenatal diagnosis, imaging, and prognosis in Congenital Diaphragmatic Hernia. Semin Perinatol 2020; 44:51163. [PMID: 31439324 DOI: 10.1053/j.semperi.2019.07.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Antenatal ultrasound screening identifies more than 60% of Congenital Diaphragmatic Hernia (CDH) cases and provides the opportunity for in utero referral to a tertiary care center for expert assessment and perinatal management. Prenatal assessment of fetuses with CDH has tremendously improved over the past ten years. The outcome may be predicted prenatally by medical imaging and advanced genetic testing. The combination of lung size and liver position determination by ultrasound measurements and MRI are widely accepted methods to stratify fetuses into groups that correlate not only with neonatal mortality but also with morbidity. Notwithstanding this, prediction of persistent pulmonary hypertension of the newborn still needs to be improved.
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Affiliation(s)
- Anne-Gael Cordier
- Department of Obstetrics and Gynecology, Hôpital Antoine Béclère, AP-HP, Université Paris Sud, 157 rue de la porte de Trivaux, 92140 CLAMART, APHP, Clamart, France; Centre Référence Maladie Rare, Hernie de Coupole Diaphragmatique, Clamart, France.
| | - Francesca M Russo
- Clinical Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium; Academic Department of Development and Regeneration, Cluster Woman and Child, KU Leuven, Leuven, Belgium
| | - Jan Deprest
- Clinical Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium; Academic Department of Development and Regeneration, Cluster Woman and Child, KU Leuven, Leuven, Belgium; Institute for Women's Health, University College London, London, UK
| | - Alexandra Benachi
- Department of Obstetrics and Gynecology, Hôpital Antoine Béclère, AP-HP, Université Paris Sud, 157 rue de la porte de Trivaux, 92140 CLAMART, APHP, Clamart, France; Centre Référence Maladie Rare, Hernie de Coupole Diaphragmatique, Clamart, France
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11
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Hu J, Ou Z, Surti U, Kochmar S, Hoffner L, Madan-Khetarpal S, Arnold GL, Walsh L, Acquaro R, Sebastian J, Yatsenko SA. Four children with postnatally diagnosed mosaic trisomy 12: Clinical features, literature review, and current diagnostic capabilities of genetic testing. Am J Med Genet A 2020; 182:813-822. [PMID: 31913574 DOI: 10.1002/ajmg.a.61482] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 12/17/2019] [Accepted: 12/22/2019] [Indexed: 11/09/2022]
Abstract
Children or adults with mosaic trisomy 12 diagnosed postnatally are extremely rare. Only a small number of patients with this mosaicism have been reported in the literature. The clinical manifestation of mosaic trisomy 12 is variable, ranging from mild developmental delay to severe congenital anomaly and neonatal death. The trisomy 12 cells are not usually able to be detected by phytohemagglutinin stimulated peripheral blood chromosome analysis. The variability of phenotypes and the limited number of patients with this anomaly pose a challenge to predict the clinical outcomes. In this study, we present the phenotypes and laboratory findings in four patients and review the 11 previously reported patients with mosaic trisomy 12 diagnosed postnatally, as well as 11 patients with mosaic trisomy 12 diagnosed prenatally. The findings of this study provide useful information for laboratory diagnosis and clinical management of these patients.
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Affiliation(s)
- Jie Hu
- Pittsburgh Cytogenetics Laboratory, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology & Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Zhishuo Ou
- Pittsburgh Cytogenetics Laboratory, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania
| | - Urvashi Surti
- Pittsburgh Cytogenetics Laboratory, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology & Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Pathology, University of Pittsburgh, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania
| | - Sally Kochmar
- Pittsburgh Cytogenetics Laboratory, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania
| | - Lori Hoffner
- Department of Pathology, University of Pittsburgh, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania
| | - Suneeta Madan-Khetarpal
- Department of Medical Genetics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Georgianne L Arnold
- Department of Medical Genetics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Leslie Walsh
- Department of Medical Genetics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Roxanne Acquaro
- Department of Medical Genetics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jessica Sebastian
- Department of Medical Genetics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Svetlana A Yatsenko
- Pittsburgh Cytogenetics Laboratory, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology & Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Pathology, University of Pittsburgh, UPMC Magee-Womens Hospital, Pittsburgh, Pennsylvania
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