1
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Armstrong ME, Weaver DD, Lah MD, Vance GH, Landis BJ, Ware SM, Helm BM. Novel phenotype of 5p13.3-q11.2 duplication resulting from supernumerary marker chromosome 5: implications for management and genetic counseling. Mol Cytogenet 2018; 11:23. [PMID: 29599822 PMCID: PMC5870180 DOI: 10.1186/s13039-018-0372-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/22/2018] [Indexed: 01/04/2023] Open
Abstract
Background Supernumerary marker chromosomes derived from chromosome 5 (SMC5) and 5p13 duplication syndrome are rare disorders, and phenotypic descriptions of patients are necessary to better define genotype-phenotype correlations for accurate, comprehensive genetic counseling. The purpose of this study is to highlight the unique findings of a patient with a 5p13.3-q11.2 duplication arising from a SMC5 and compare and contrast the phenotype with cases in the literature. Case presentation We report on an adult male with a 22 Mb duplication of chromosome 5p13.3-q11.2 resulting from a small SMC5. The patient has a history of prenatal polyhydramnios, dysmorphic features, respiratory issues, talipes equinovarus, hypotonia, developmental delay, and autistic features. The patient also has novel features of aortic dilation, pectus excavatum, kyphoscoliosis, and skin striae, suggestive of a connective tissue disorder. Despite these features he did not meet clinical diagnostic criteria for a well-characterized connective tissue disorder. Additional molecular genetic testing for syndromic and non-syndromic aortic aneurysms was negative. Conclusions Many of the patient’s features are consistent with individuals reported with 5p13 duplication syndrome and similar cases of SMC5, including polyhydramnios, macrocephaly, dolichocephaly, pre-auricular pits, arachnodactyly, respiratory problems, and developmental delays. It is unclear if the patient’s unique features of aortic dilation, pectus excavatum, kyphoscoliosis, and skin striae could be novel features of the SMC5 given its rarity and the few well-phenotyped adults in the literature. This report reviews the literature and provides additional phenotypic information to define the genotype-phenotype correlation of SMC5 and 5p13 duplication syndrome.
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Affiliation(s)
- Margaret E Armstrong
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA.,3Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, Iowa USA
| | - David D Weaver
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA
| | - Melissa D Lah
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA
| | - Gail H Vance
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA.,2Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana USA
| | - Benjamin J Landis
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA.,2Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana USA
| | - Stephanie M Ware
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA.,2Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana USA
| | - Benjamin M Helm
- 1Department of Medical and Molecular Genetics and Department of Pediatrics, Indiana University School of Medicine, 550 N. University Blvd, AOC 5001, Indianapolis, Indiana 46202 USA
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2
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Santacroce R, Trunzo R, Leccese A, Pansini A, Gentile M, Margaglione M. The first case of a small supernumerary marker chromosome derived from chromosome 10 in an adult woman with an apparently normal phenotype. Syst Biol Reprod Med 2015; 61:398-402. [DOI: 10.3109/19396368.2015.1067936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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3
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Vidale S, Di Palma F, Sironi L, Arnaboldi M. Neurophysiological findings in a newborn with chromosome 10 trisomy. BMJ Case Rep 2014; 2014:bcr-2013-010222. [PMID: 24798351 DOI: 10.1136/bcr-2013-010222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The trisomy of the short arm of chromosome 10 is a rare condition. The phenotypic expression of this genetic aberration is characterised by growth and mental retardation with several neurological signs. We report the neurophysiological findings in a newborn affected by 10p chromosome trisomy who developed seizures. Serial EEGs showed a progressive reduction in burst-suppression activity and a slow rhythmic basal activity. At 1 year of age the recording showed for the first time spikes of high amplitude (up to 800 μV) in bilateral frontal regions. These findings could be related to an asymmetrical cerebral maturation in the context of perinatal sufferance and brain malformation due to the genetic aberration.
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Affiliation(s)
- Simone Vidale
- Sant'Anna Hospital, San Fermo della Battaglia, Italy
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4
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Rao KP, Belogolovkin V. Marker chromosomes. Fetal Pediatr Pathol 2013; 32:97-112. [PMID: 22587446 DOI: 10.3109/15513815.2012.681425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Marker chromosomes are a morphologically heterogeneous group of structurally abnormal chromosomes that pose a significant challenge in prenatal diagnosis. Phenotypes associated with marker chromosomes are highly variable and range from normal to severely abnormal. Clinical outcomes are very difficult to predict when marker chromosomes are detected prenatally. In this review, we outline the classification, etiology, cytogenetic characterization, and clinical consequences of marker chromosomes, as well as practical approaches to prenatal diagnosis and genetic counseling.
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Affiliation(s)
- Kiran Prabhaker Rao
- Department of Obstetrics and Gynecology, University of South Florida College of Medicine, Tampa, FL 33606, USA
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5
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Sung PL, Chang SP, Wen KC, Chang CM, Yang MJ, Chen LC, Chao KC, Huang CYF, Li YC, Lin CC. Small supernumerary marker chromosome originating from chromosome 10 associated with an apparently normal phenotype. Am J Med Genet A 2010; 149A:2768-74. [PMID: 19921638 DOI: 10.1002/ajmg.a.32878] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Small supernumerary marker chromosomes (sSMC) originating from chromosome 10 are rare. Only seven cases have been documented, and among those three cases were diagnosed prenatally. We reported on another prenatal diagnosis of a de novo mosaic sSMC in an apparently normal female fetus whose mother had conceived with assisted reproductive technology (ART) procedures. G-banding analysis of amniotic cells was performed. Spectral karyotyping (SKY) and fluorescence in situ hybridization (FISH) studies with chromosome 10-specific alphoid satellite DNA probe were used to identify the chromosome 10 origin of the sSMC. Further FISH study with telomeric sequence probes showed that the sSMC lacked a hybridization signal, suggesting that the marker could be a ring chromosome. FISH studies using BAC clone probes specific for the regions within 10p11.2, 10q11.1, and 10q11.2 showed that the short arm breakpoint was located between 29.8 and 30.7 Mb from the 10p telomere, and that the long arm breakpoint was located less than 43.6 Mb from the 10p telomere. The karyotype of the fetus was 47,XX,+mar. ish der(10)(SKY+ CEP 10+, CTD-2130I7+, RP11-89J23-)/46,XX. Oligonucleotide microarray-based copy number variations (CNV) analysis was also performed and showed a 6.7 Mb duplication from 10p11.2 to 10q11.2 (36.2-42.9 Mb) with Affymetrix SNP-array 6.0 genotype: arr cgh. 10p11.2q11.2(CN_519687 --> CN_541524) X 3. At the 1-year follow-up, the baby did not have any findings of the trisomy 10p syndrome. This observation provided further credence to the concept that additional chromosome material of proximal 10p11.2 may not contribute to the trisomy 10p syndrome phenotype.
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Affiliation(s)
- Pi-Lin Sung
- Department of Obstetrics and Gynecology, Chia-Yi Veterans Hospital, Chai-Yi, Taiwan
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6
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Davidsson J, Collin A, Öreberg M, Gisselsson D. Array-based genotype-phenotype correlation in a case of supernumerary ring chromosome 12. Clin Genet 2007; 73:44-9. [DOI: 10.1111/j.1399-0004.2007.00917.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Bernardini L, Capalbo A, D'Avanzo MG, Torrente I, Grammatico P, Dell'Edera D, Cavalcanti DP, Novelli A, Dallapiccola B. Five cases of supernumerary small ring chromosomes 1: Heterogeneity and genotype–phenotype correlation. Eur J Med Genet 2007; 50:94-102. [PMID: 17236832 DOI: 10.1016/j.ejmg.2006.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2006] [Accepted: 11/15/2006] [Indexed: 11/25/2022]
Abstract
Genetic counselling of patients with small supernumerary ring chromosomes (sSRCs) can be difficult, especially in prenatal testing, due to the complexity in establishing a karyotype-phenotype correlation. In fact, it has been estimated that about 10% of extra ring(1) chromosomes are associated with an unremarkable phenotype. We report on five new cases of extra ring chromosomes(1) manifesting different clinical outcome. One case was familial, segregating from a mother with mosaic karyotype, while the others were de novo. Ring chromosomes were characterised by FISH. In three subjects the involvement of the same euchromatic 1p region was demonstrated. Present observations corroborate previous results and provide some insight into the identification of the harmless ring(1) structures.
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Affiliation(s)
- Laura Bernardini
- Ospedale Casa Sollievo della Sofferenza, San Giovanni Rotondo e Istituto CSS-Mendel, Roma, Italy
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8
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Liehr T, Mrasek K, Weise A, Dufke A, Rodríguez L, Martínez Guardia N, Sanchís A, Vermeesch JR, Ramel C, Polityko A, Haas OA, Anderson J, Claussen U, von Eggeling F, Starke H. Small supernumerary marker chromosomes – progress towards a genotype-phenotype correlation. Cytogenet Genome Res 2005; 112:23-34. [PMID: 16276087 DOI: 10.1159/000087510] [Citation(s) in RCA: 141] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2005] [Accepted: 04/19/2005] [Indexed: 11/19/2022] Open
Abstract
Small supernumerary marker chromosomes (sSMC) are still a major problem in clinical cytogenetics as they are too small to be characterized for their chromosomal origin by traditional banding techniques, but require molecular cytogenetic techniques for their identification. Apart from the correlation of about one third of the sSMC cases with a specific clinical picture, i.e. the i(18p), der(22), i(12p) (Pallister Killian syndrome) and inv dup(22) (cat-eye) syndromes, most of the remaining sSMC have not yet been correlated with clinical syndromes. Recently, we reviewed the available >1600 sSMC cases (Liehr T, sSMC homepage: http://mti-n.mti.uni-jena.de/~huwww/MOL_ZYTO/sSMC.htm). A total of 387 cases (including the 45 new cases reported here) have been molecularly cytogenetically characterized with regard to their chromosomal origin, the presence of euchromatin, heterochromatin and satellite material. Based on analysis of these cases we present the first draft of a basic genotype-phenotype correlation for sSMC for all human chromosomes apart from the chromosomes Y, 10, 11 and 13.
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Affiliation(s)
- T Liehr
- Institut für Humangenetik und Anthropologie, Jena, Germany.
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9
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Trimborn M, Grueters A, Neitzel H, Tönnies H. First small supernumerary ring chromosome carrying 10q euchromatin in a patient with mild phenotype characterized by molecular cytogenetic techniques and review of the literature. Cytogenet Genome Res 2005; 108:278-82. [PMID: 15627745 DOI: 10.1159/000081524] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2004] [Accepted: 07/29/2004] [Indexed: 11/19/2022] Open
Abstract
We report the identification and characterization of the first supernumerary ring chromosome 10 containing a considerable proportion of 10q euchromatin by microdissection and reverse painting in a female patient presenting with short stature. Fluorescence in situ hybridization studies showed that the marker chromosome originates from chromosome 10 and includes the euchromatic bands p11.2 and q11.2. The supernumerary marker chromosome 10 was found in 14% of the peripheral blood lymphocytes analyzed. This constitutional mosaic could be confirmed in oral mucosa cells as a second cell system (16%) by interphase FISH using an alphoid centromeric probe for chromosome 10. Parental karyotypes were normal, uniparental disomy for the normal chromosomes 10 could be excluded by microsatellite analysis. The karyotype of the patient detected in peripheral blood cells can be described as mos 47,XX,+mar.rev ish r(10)(p11.2q11.2)(wcp10+,cep10+)/46,XX.
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Affiliation(s)
- M Trimborn
- Institute of Human Genetics, Charité, Campus Virchow-Klinikum, Humboldt-University, Berlin, Germany
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10
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Abstract
Reverse chromosome painting, as the opposite of forward chromosome painting, means that an abnormal chromosome of interest is recovered by flow sorting or by chromosome microdissection, amplified and labelled by DOP-PCR and hybridized onto normal metaphases of optimal quality. This provides rapid and unequivocal information about the chromosomal origin on the aberrant chromosome in one hybridization. Not only will the specific chromosome(s) involved be identified, but also the subchromosomal origin, including the breakpoints. The method has been used for over 10 years and has proven to be very useful for resolving complex chromosome rearrangements in a variety of different applications, both as a research tool and for clinical purposes in pre- and postnatal diagnosis.
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Affiliation(s)
- Elisabeth Blennow
- Department of Clinical Genetics, Karolinska Hospital, SE-171 76 Stockholm, Sweden.
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11
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Chen CP, Chang TY, Town DD, Chen LF, Pan CW, Wang W, Tzen CY. Partial trisomy 10 (10q11.2-->pter) and partial trisomy 18 (18p11.2-->pter) associated with abnormal sonographic findings and a maternal serum screen-positive result. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2004; 23:202-204. [PMID: 14770405 DOI: 10.1002/uog.957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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12
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Reddy KS, Wang S, Groh S, Gonatos J. SKY assessment of two karyotypes with 0-6 supernumerary marker/ring chromosomes and review of previously reported cases with two or more markers. Am J Med Genet A 2003; 118A:156-71. [PMID: 12655496 DOI: 10.1002/ajmg.a.10045] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A 7-month-old boy with developmental delay and congenital abnormalities and a 58-year-old man with mental retardation, impaired speech, and dysmorphic features were referred for cytogenetic studies. The peripheral blood chromosome studies of Patient 1 had a de novo mosaic karyotype with 2-6 supernumerary marker chromosomes. Patient 2 had a mosaic karyotype with 1-5 supernumerary marker chromosomes and normal cells. All markers appeared to have a centromere by C-banding and also by fluorescence in situ hybridization (FISH) using all centromere probe for Patient 1. The majority of the markers appeared like rings. Except for one marker in Patient 1 and 2-3 markers in Patient 2 with discernible >5 Mb euchromatin, the rest of the markers were minute and some appeared to have barely discernible euchromatin in C-banding or FISH. Spectral karyotyping (SKY) was attempted to determine the origin of the marker chromosomes. Because some markers had barely any euchromatin, their classification was not clear cut and they were identified as derived from more than one chromosome. The SKY classification of the markers in Patient 1 was 1, 3, 5, 7, 11, 15, and 22 and in Patient 2 was 1, 5, 6, or 7. Patient 2 was lost to further follow-up studies. To confirm the recurring SKY classifications in Patient 1, centromere probes for chromosomes 1, 3, 5, 7, 11, 15, and 22 were used. The markers were negative for 1, 3, and 11 but positive for 7, 15, and 22 and probably 5. Since 5 centromere probe cross hybridizes with 1 and 19, the weak signal on the marker/s in successive hybridization did not give a definitive answer. Also, the 5 paint probe was not conclusive because of the minute size of the marker. In some metaphases, two markers were derived from 5 or 22. For clinical considerations, the marker derived from 7, although variable in size, appeared to consistently have euchromatin, followed by 15, while 22 and 5 markers were mostly centromeric heterochromatin. The elastin gene probe that maps to 7q11.23, SNRPN gene that maps to 15q11.2, and TUPLE gene that maps to 22q11.2 did not give a signal on the markers. As expected for a majority of ring chromosomes, the pan telomere probe did not hybridize to any of the markers. This highly unusual karyotype was confirmed in the buccal epithelium using a mix of centromere 7 and 15 probes and the combination 14/22 probe. The ratio of additional FISH signals in the buccal mucosal cells was comparable to the ratios observed in the peripheral blood. In this study, we have attempted to consolidate the data on >/=2 marker cases to understand the analysis constraints, the range of clinical abnormalities, and the mechanisms involved. The literature was surveyed for multiple markers cases. A majority of the reported cases had two markers, either derived from the same chromosome or from two different chromosomes or two cell lines with different markers derived from the same chromosome. Cases with three or more markers were rare. The nature and extent of euchromatin content of the multiple markers appears to determine the phenotype. Frequently, multiple marker cases had small to minute markers. The clinical presentation varied from mild to severe. While two bisatellited markers may be associated with infertility, the phenotype in other cases ranged from borderline intelligence and mild dysmorphism to developmental delay, mental retardation, and congenital abnormalities.
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Affiliation(s)
- Kavita S Reddy
- Department of Cytogenetics, Quest Diagnostics, Inc., San Juan Capistrano, California, USA.
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13
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Daniel A, Malafiej P. A series of supernumerary small ring marker autosomes identified by FISH with chromosome probe arrays and literature review excluding chromosome 15. Am J Med Genet A 2003; 117A:212-22. [PMID: 12599184 DOI: 10.1002/ajmg.a.10100] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Seven supernumerary small ring marker autosomes were studied. The pantelomere probe (Oncor) in conjunction with scoring for dicentric rings was used to confirm ring morphology. The small rings were identified mainly by FISH with chromosome probe arrays (Cytocell) containing representations from all 24 chromosomes and the rings were derived from chromosomes 7, 8 (three cases), 11, 12, and 14. The effectiveness of the array methodology in identifying markers was tested. Microsatellite DNA data showed biparental disomy (BPD) was present for the rings from chromosomes 7 and 14 thereby excluding UPD, both were de novo but the ring 14 was of paternal origin. The literature on supernumerary small ring autosomes was reviewed excluding chromosome 15. The grade and distribution of mosaicism was invoked as the major determinant of the differences in phenotype and, in addition, variation was attributed to the possibility of different contributions from each chromosome arm. There are 88 published supernumerary small ring cases in total, with phenotypic data attributable to the respective rings in 77 cases and all chromosomes being represented except chromosome 17. Of the prenatally ascertained cases, where there was adequate phenotypic data, 30% had an abnormal phenotype attributable to the ring, and there were 44% familial cases in this group. Of the postnatally ascertained small rings, 75% had an abnormal phenotype attributable to the ring and there were 13% familial cases. This higher abnormality rate is concordant with the considerable ascertainment bias of this latter group and the prenatal data are recommended for genetic counseling. Although data are small there were some differences between the rings derived from different chromosomes. Chromosomes 3 and 8 demonstrate the extremes. Of the supernumerary small r(8) cases reviewed including the three presently described, 8/11 had an abnormal phenotype attributable to the marker but of the small r(3) cases, only 1/6 had an abnormal phenotype. Two of the present r(8) were studied with the GATA4 probe at 8p23.1. The r(8) in case 2 (patient moderately retarded) was comprised mostly of an intact 8p whereas the larger r(8) in case 3 (normal phenotype) was missing 8p23.1 --> pter and had more of 8q contributing to the ring. In other supernumerary rings postnatally ascertained, there is mostly insufficient data but there is an abnormal phenotype in 8/11 cases with multiple small rings, in 5/6 cases with r(20), and in 5/10 with r(1). A novel origin for supernumerary small rings is proposed: that they may originate from incompletely digested superfluous (haploid) pronuclei. The small rings presumptively so formed may occasionally be transfected into the zygote nucleus. The high proportion ( approximately 12.5%) of cases with multiple supernumerary small rings almost always of different centromeric origin is consistent with this concept.
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MESH Headings
- Adult
- Child
- Child, Preschool
- Chromosomes, Human, Pair 11/genetics
- Chromosomes, Human, Pair 12/genetics
- Chromosomes, Human, Pair 14/genetics
- Chromosomes, Human, Pair 7/genetics
- Chromosomes, Human, Pair 8/genetics
- Female
- Genetic Markers
- Humans
- In Situ Hybridization, Fluorescence/methods
- Infant
- Male
- Nucleic Acid Probes
- Ring Chromosomes
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Affiliation(s)
- Art Daniel
- Department of Cytogenetics, The Children's Hospital at Westmead, Hawkesbury Road, Westmead, New South Wales 2145, Australia.
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14
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Giardino D, Finelli P, Russo S, Gottardi G, Rodeschini O, Atza MG, Natacci F, Larizza L. Small familial supernumerary ring chromosome 2: FISH characterization and genotype-phenotype correlation. AMERICAN JOURNAL OF MEDICAL GENETICS 2002; 111:319-23. [PMID: 12210331 DOI: 10.1002/ajmg.10537] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A child and his mother were found to be mosaic for a small supernumerary marker chromosome (SMC) that was identified and characterized by means of fluorescent in situ hybridization. The marker chromosome was derived from the pericentromeric region of chromosome 2; the involvement of proximal 2q was determined by YAC probes. The proband was referred because of psychotic illness and mild mental retardation, whereas his mother presented only minor dysmorphisms. There are only a few published reports concerning SMC(2) or proximal 2q trisomy. We reviewed the previously reported cases in an attempt to establish genotype-phenotype correlations, which are particularly important when SMCs are identified in prenatal diagnosis.
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Affiliation(s)
- Daniela Giardino
- Cytogenetics and Molecular Genetics Laboratory, Auxological Institute, Milan, Italy.
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15
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Martin-Denavit T, Attia-Sobol J, Theuil J, Abel-Lablanche K, Boggio D, Teyssier M, Till M, Champion F, Vitrey D, Plauchu H. First prenatal diagnosis of partial trisomy 10 and partial monosomy 15 derived from a maternal translocation (10;15)(q11;q13). Prenat Diagn 2002; 22:487-9. [PMID: 12116308 DOI: 10.1002/pd.343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Schlegel M, Baumer A, Riegel M, Wiedemann U, Schinzel A. Maternal uniparental isodisomy 10 and mosaicism for an additional marker chromosome derived from the paternal chromosome 10 in a fetus. Prenat Diagn 2002; 22:418-21. [PMID: 12001199 DOI: 10.1002/pd.337] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We report a case of maternal isodisomy 10 combined with mosaic partial trisomy 10 (p12.31-q11.1). Chromosome examinations from a CVS sample showed a karyotype 47,XX,+mar/46,XX [corrected]. The additional marker chromosome which was present in 6/25 interphase nuclei was shown by fluorescence in situ hybridization (FISH) to have been derived from a pericentromeric segment of chromosome 10. DNA analysis was performed from umbilical cord blood from the fetus after termination of the pregnancy at 18 weeks. The results showed that the two structurally normal chromosomes 10 were both of maternal origin, whereas the marker chromosome derived from the father. Autopsy of the fetus revealed hypoplasia of heart, liver, kidneys and suprarenal glands, but, apart from a right bifid ureter, no structural organ abnormalities. This fetus represents the second reported instance of a maternal uniparental disomy (UPD) 10.
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Affiliation(s)
- Monika Schlegel
- Institute of Medical Genetics, University of Zurich, Switzerland
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17
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Nordgren A, Heyman M, Sahlén S, Schoumans J, Söderhäll S, Nordenskjöld M, Blennow E. Spectral karyotyping and interphase FISH reveal abnormalities not detected by conventional G-banding. Implications for treatment stratification of childhood acute lymphoblastic leukaemia: detailed analysis of 70 cases. Eur J Haematol 2002; 68:31-41. [PMID: 11952819 DOI: 10.1034/j.1600-0609.2002.00547.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Seventy uniformly treated children with acute lymphoblastic leukemia were analysed for chromosomal abnormalities with conventional G-banding, spectral karyotyping (SKY) and interphase fluorescent in situ hybridisation (FISH) using probes to detect MLL, BCR/ABL, TEL/AML1 rearrangements and INK4 locus deletions. Numerical and/or structural changes could be identified in 80% of the patients by the use of molecular cytogenetic techniques, whereas abnormalities could be detected in 60% of the patients using G-banding alone. Altogether, 106 structural aberrations were defined by FISH compared to 34 using G-banding. Seventy-four percent of the patients had numerical aberrations, 54% structural aberrations and 20% had no identified aberrations. Twelve cases had prognostically unfavourable chromosomal aberrations that had not been detected in the G-banded analysis. We identified three novel TEL partner breakpoints on 1q41, 8q24 and 21p12, and a recurrent translocation t(1;12)(p32;p13) was found. In addition, two cases displayed amplification (7-15 copies) of AML1. Our results demonstrate the usefulness of SKY and interphase FISH for the identification of novel chromosome aberrations and cytogenetic abnormalities that provide prognostically important information in childhood ALL.
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MESH Headings
- Adolescent
- Aneuploidy
- Child
- Child, Preschool
- Chromosome Aberrations
- Chromosome Banding
- Chromosomes, Human/genetics
- Chromosomes, Human/ultrastructure
- Chromosomes, Human, Pair 1/genetics
- Chromosomes, Human, Pair 1/ultrastructure
- Chromosomes, Human, Pair 21/genetics
- Chromosomes, Human, Pair 21/ultrastructure
- Chromosomes, Human, Pair 8/genetics
- Chromosomes, Human, Pair 8/ultrastructure
- Core Binding Factor Alpha 2 Subunit
- DNA-Binding Proteins/genetics
- Female
- Fusion Proteins, bcr-abl/genetics
- Genes, abl
- Genes, p16
- Histone-Lysine N-Methyltransferase
- Humans
- In Situ Hybridization, Fluorescence/methods
- Infant
- Infant, Newborn
- Interphase
- Karyotyping/methods
- Leukemia, T-Cell/genetics
- Male
- Myeloid-Lymphoid Leukemia Protein
- Oncogene Proteins, Fusion/genetics
- Philadelphia Chromosome
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/classification
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy
- Prognosis
- Proto-Oncogenes
- Transcription Factors
- Translocation, Genetic/genetics
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Affiliation(s)
- Ann Nordgren
- Department of Molecular Medicine, Karolinska Institutet, L8-02 Karolinska Hospital, SE-17176 Stockholm, Sweden.
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18
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Chen Z, Meloni-Ehrig A, Palumbos JC, Guan XY, Carroll KL, Dent KM, Carey JC. Pure trisomy 10p resulting from an extra ring chromosome: characterization by methods of advanced molecular cytogenetics. AMERICAN JOURNAL OF MEDICAL GENETICS 2001; 102:379-82. [PMID: 11503167 DOI: 10.1002/ajmg.1470] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
With the use of advanced molecular cytogenetic techniques, we have identified an extra ring chromosome consisting of the entire short arm of chromosome 10 (10p) in a 9-month-old girl with multiple congenital anomalies. This case represents another cytogenetic mechanism leading to the formation of pure complete trisomy 10p, which has not been reported previously. Pure trisomy 10p is rare. This case will further delineate those features associated with trisomy 10p.
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Affiliation(s)
- Z Chen
- Cytogenetics Laboratory, University of Utah Health Sciences Center, Salt Lake City, UT 84132, USA.
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19
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Bruder CE, Ichimura K, Blennow E, Ikeuchi T, Yamaguchi T, Yuasa Y, Collins VP, Dumanski JP. Severe phenotype of neurofibromatosis type 2 in a patient with a 7.4-MB constitutional deletion on chromosome 22: Possible localization of a neurofibromatosis type 2 modifier gene? Genes Chromosomes Cancer 1999. [DOI: 10.1002/(sici)1098-2264(199906)25:2<184::aid-gcc15>3.0.co;2-b] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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20
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Crolla JA. FISH and molecular studies of autosomal supernumerary marker chromosomes excluding those derived from chromosome 15: II. Review of the literature. ACTA ACUST UNITED AC 1998. [DOI: 10.1002/(sici)1096-8628(19980203)75:4<367::aid-ajmg5>3.0.co;2-n] [Citation(s) in RCA: 118] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Jönsson EG, Härnryd C, Johannesson T, Wahlström J, Bergenius J, Bergstedt H, Greitz D, Nyman H, Björck E, Blennow E, Sedvall GC. Further studies on a male monozygotic triplet with schizophrenia: cytogenetical and neurobiological assessments in the patients and their parents. Eur Arch Psychiatry Clin Neurosci 1997; 247:239-47. [PMID: 9444492 DOI: 10.1007/bf02900301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We previously described a Swedish set of male schizophrenic monozygotic triplets. In this study the patients as well as their parents were further characterized. By high-resolution chromosomal analysis an extra band at chromosome 15p was found in all the triplets and the father. Microdissection, degenerate oligonucleotide-primed PCR (DOP-PCR) amplification and reverse painting indicates that the extra band probably contains only repetitive DNA sequences with no known effect on the phenotype. Magnetic resonance imaging (MRI) showed similar borderline ventricular enlargement and widened subarachnoid spaces over frontoparietal and basal regions as well as around the pituitary gland (empty sella) in all the triplets. The father also had widened subarachnoid spaces over the frontal and basal regions. The mother had an empty sella indicating widened subarachnoid spaces. All the boys also had a right-sided conductive hearing defect, probably due to malformation and fixation of the ossicular chain. The parents did not present any otological abnormalities. Neuropsychological assessment demonstrated similar marked reductions of attentional, mnestic, and executive functions in all the triplets, but the mother showed a normal pattern. Possible joint etiological mechanisms for the psychological and somatic abnormalities recorded in the triplets are discussed.
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Affiliation(s)
- E G Jönsson
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
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