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Wu Y, Wang Y, Wen SW, Zhao X, Hu W, Liu C, Gao L, Zhang Y, Wang S, Yang X, He B, Cheng W. Recombinant chromosome 4 in two fetuses - case report and literature review. Mol Cytogenet 2018; 11:48. [PMID: 30166997 PMCID: PMC6103979 DOI: 10.1186/s13039-018-0393-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/03/2018] [Indexed: 11/21/2022] Open
Abstract
Background Recombinant chromosome 4 syndrome (rec 4 syndrome) is a rare genetic disorder, predominately resulting from a parental pericentric inversion of chromosome 4. To date, a total of 18 cases of rec (4) syndrome were published in literature. We report the first kindred of rec (4) syndrome analyzed using copy number variation sequencing (CNV-seq). Results A woman with two adverse fetal outcomes was described in the present study. The first fetus presented with severe intrauterine growth restriction, hyposarca, hydrothorax and ascites. The CNV-seq revealed a dup 4q and del 4p. The second fetus presented with cardiovascular disease of ventricular septal defect, overriding aorta and persistent trunk. The CNV-seq revealed a dup 4p and del 4q. We collected 18 rec (4) cases through literature review. Genotype-phenotype correlation analysis was also performed. Conclusion Recombinant 4 syndrome is a rare genetic disorder. It should be divided into two categories according to the alternative recombinant types. The clinical manifestations of rec (4) cases with dup 4q and del 4p are consistent with the Wolf-Hirschhorn syndrome. For cases harboring dup 4p and del 4q, the high incidence of congenital heart disease is prominent.
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Affiliation(s)
- Yi Wu
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China.,2OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Canada.,3Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Yanlin Wang
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Shi Wu Wen
- 2OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Canada.,3Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,4School of Epidemiology & Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Xinrong Zhao
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Wenjing Hu
- 5Department of Reproductive Genetics, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chunmin Liu
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Li Gao
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Yan Zhang
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Shan Wang
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Xingyu Yang
- 6Central laboratory, International Peace Maternity & Child Health Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Biwei He
- 6Central laboratory, International Peace Maternity & Child Health Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Weiwei Cheng
- 1Prenatal Diagnostic Center, International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
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Carrascosa Romero MC, García Mialdea O, Vidal Company A, Cabezas Tapia ME, Gonzálvez Piñera J. [Partial duplication of chromosome 4q (q31, q35): Auriculo-acro-renal syndrome]. An Pediatr (Barc) 2008; 68:361-4. [PMID: 18394381 DOI: 10.1157/13117707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The partial trisomy 4q is a strange chromosomal illness. This illness is caused by the duplication of a portion of chromosome 4. In most of the cases, it is the result of a balanced translocation in one of the progenitors. The "de novo" appearance is less common. We present a patient with a partial "de novo" duplication in the distal segment of the long arm of chromosome 4 (q31, q35), in association with Robertsonian translocation between chromosomes 14 and 21. This association has not been described previously. In the 4q duplication, the relationship between the phenotype and the parts of the duplicated segment is not well defined, although it seems clear that the renal anomalies and/or thumbs abnormalities are a characteristic manifestation. We have reviewed the literature and, of the cases previously described with trisomy q31-35, we came to the conclusion that this region of chromosome 4 may also be involved in constituting the "Syndrome of partial trisomy 4q" or Auriculo-acro-renal Syndrome".
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Affiliation(s)
- M C Carrascosa Romero
- Servicio de Neuropediatría. Complejo Hospitalario Universitario de Albacete. España.
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Piovani G, Borsani G, Bertini V, Kalscheuer VM, Viertel P, Bellotti D, Valseriati D, Barlati S. Unexpected identification of two interstitial deletions in a patient with a pericentric inversion of a chromosome 4 and an abnormal phenotype. Eur J Med Genet 2006; 49:215-23. [PMID: 16762823 DOI: 10.1016/j.ejmg.2005.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Accepted: 07/29/2005] [Indexed: 11/16/2022]
Abstract
Interstitial deletions and pericentric inversions of chromosome 4 appear to be unusual phenomena. Here, we report the case of a 14-year-old boy with severe psychomotor retardation with a de novo 46,XY,der(4)del(p15.2p15.31)inv(4)(p15.2q13.3)del(4)(q13.2q13.2) karyotype. We used FISH analysis with YAC and BAC clones to characterise the inversion's breakpoints. A complex event with six breakpoints was found, characterised by a pericentric inversion and two deletions, the first on the short arm of chromosome 4 (4p) and the second on the long arm of chromosome 4 (4q). The deletion events had removed two segments, one of approximately 5 Mb, from 4p, outside the inversion, and the other 2 Mb from 4q, inside the inversion. These rearrangements were not found in the parents. Microsatellite marker analysis showed that the inversion carrying chromosome 4 was derived from the father. Bioinformatic analysis of the human genome sequence allowed us to identify several hemizygotic genes in the patient, which might be involved in the pathogenesis of this clinical phenotype.
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Affiliation(s)
- Giovanna Piovani
- Biology and Genetics Division, Department of Biomedical Sciences and Biotechnology, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
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Garcia-Heras J, Martin J. A rec(4) dup 4p inherited from a maternal inv(4)(p15q35): case report and review. AMERICAN JOURNAL OF MEDICAL GENETICS 2002; 109:226-30. [PMID: 11977183 DOI: 10.1002/ajmg.10353] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A rec(4) dup 4p inherited from a maternal inv(4)(p15q35) was detected in a four-year-old girl with malformations, developmental delay, and behavioral problems that resemble those for trisomy 4p. A review of eight other liveborns with rec(4) dup 4p shows that about 40% of them also have manifestations in common with trisomy 4p, but the rest have a variable spectrum of malformations. Overall, the rec(4) dup 4p phenotype is not specific, and a diagnosis would not have been feasible without cytogenetic studies. This lack of a clinically recognizable phenotype could reflect the effects of the variable sizes of deletions of 4q, molecular differences in the break points, or the known variable expression of trisomy 4p. The fact that 79% of the recombinants in the offspring of inv(4)(p13-p15q35) carriers are rec(4) dup 4p suggests that meiotic recombination favors its generation or that rec(4) dup 4q are more lethal in utero.
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Affiliation(s)
- Jaime Garcia-Heras
- Genetic Testing Center, Bureau of Laboratories, Texas Department of Health, Denton, Texas, USA
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Escudero T, Lee M, Stevens J, Sandalinas M, Munné S. Preimplantation genetic diagnosis of pericentric inversions. Prenat Diagn 2001; 21:760-6. [PMID: 11559913 DOI: 10.1002/pd.171] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Inversions are structural chromosome abnormalities that may be associated with infertility, multiple miscarriage and chromosomally unbalanced offspring. Preimplantation genetic diagnosis (PGD) with subtelomeric probes was used to select for transfer only those embryos that were normal or balanced for three pericentric inversions. In contrast to previous protocols the present procedure allows the detection of unbalanced embryos that might arise from U-recombination in the inverted region. Additionally, aneuploidy screening was carried out in two cases by a second round of fluorescent in situ hybridization (FISH) with centromeric probes. Of the three couples that underwent the procedure one became pregnant twice. The first pregnancy delivered a healthy and chromosomally normal baby and the second pregnancy is ongoing with triplets.
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Affiliation(s)
- T Escudero
- The Institute for Reproductive Medicine and Science, Saint Barnabas Medical Center, Livingston, NJ 07052, USA
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Petek E, Wagner K, Steiner H, Schaffer H, Kroisel PM. Prenatal diagnosis of partial trisomy 4q26-qter and monosomy for the Wolf-Hirschhorn critical region in a fetus with split hand malformation. Prenat Diagn 2000; 20:349-52. [PMID: 10740212 DOI: 10.1002/(sici)1097-0223(200004)20:4<349::aid-pd808>3.0.co;2-b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We describe the results of prenatal analyses and postnatal findings in a male fetus with a partial trisomy for the long arm and a small terminal monosomy for the short arm of chromosome 4 with the following karyotype: 46,XY,add(4)(p16.3).ish dup(4)(q26qter)(wcp4+, D4S2336x3,AFMb280xa5x2,4ptel-,WHCR-). G-banding did not identify the origin of the additional chromosomal segment, but this was achieved prenatally by application of RxFISH and whole chromosome painting probes. Subsequent FISH analysis with region-specific YAC clones was used to relate the phenotypic findings such as bilateral split hand formation, specific cardiac and kidney anomalies, microtia, and hypoplastic thorax more exactly to the partial trisomy of the segment 4q26-qter.
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Affiliation(s)
- E Petek
- Institute of Medical Biology and Human Genetics, University of Graz, Graz, Austria
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