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Rossi C, Siffroi JP, Ruosso L, Rogers E, Becker M, Cassuto NG, Prat-Ellenberg L, Rouen A. Chromosomal segregation analysis and HOST-based sperm selection in a complex reciprocal translocation carrier. J Assist Reprod Genet 2023; 40:33-40. [PMID: 36441422 PMCID: PMC9840725 DOI: 10.1007/s10815-022-02665-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/17/2022] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Complex chromosomal rearrangements (CCRs) involve two or more chromosomes and at least three breakpoints. Due to their complexity, they are associated with a high number of unbalanced gametes, whose fertilization is often incompatible with viable fetal development. Preimplantation genetic diagnosis (PGD) is usually offered to those patients and typically shows modest results considering the high number of unbalanced embryos. We previously showed that a sperm selection process using the hypo-osmotic swelling test (HOST) allows for an 83% reduction in the proportion of unbalanced spermatozoa (US) in male rearrangements carriers. This is the first report of the use of this procedure in a CCR carrier. CASE DESCRIPTION We report on the case of a 36-year-old male t(4;7;14)(q12;p21;q11.2) carrier who presented to our center for infertility. Sperm fluorescent in situ hybridization showed an 88% proportion of unbalanced spermatozoa. After hypo-osmotic incubation and selection of spermatozoa with a specific flagellar conformation, the proportion of unbalanced spermatozoa dropped to 15%. DISCUSSION In the present case, we show that it is possible to select chromosomally balanced prior to in vitro fertilization in male CCR carriers. This technique has the potential of increasing the proportion of euploid embryos and therefore the chances of healthy pregnancy and birth.
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Affiliation(s)
- Capucine Rossi
- Département de Génétique Médicale, Unité INSERM U933, Hôpital Armand-Trousseau, AP-HP, 75012, Paris, France
| | - Jean-Pierre Siffroi
- Département de Génétique Médicale, Unité INSERM U933, Hôpital Armand-Trousseau, AP-HP, 75012, Paris, France
| | - Léa Ruosso
- Laboratoire Drouot, 75009, Paris, France
| | - Eli Rogers
- Département de Génétique Médicale, Unité INSERM U933, Hôpital Armand-Trousseau, AP-HP, 75012, Paris, France
| | - Michael Becker
- Synlab International Services Germany (ISG), Leinfelden, Germany
| | | | - Laura Prat-Ellenberg
- Centre de Procréation Médicalement Assistée, Maternité Des Bluets, 75012, Paris, France
| | - Alexandre Rouen
- Département de Génétique Médicale, Unité INSERM U933, Hôpital Armand-Trousseau, AP-HP, 75012, Paris, France.
- Vigilance Fatigue Sommeil Et Santé Publique, Université de Paris, ERC 7330, Paris, France.
- Centre du Sommeil Et de La Vigilance, AP-HP, Hôtel-DieuCentre de Référence Des Hypersomnies Rares, 75001, Paris, France.
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Luo Y, Lu H, Zhang Y, Cui Z, Zhang P, Li Y. A case of complex balanced chromosomal translocations associated with adverse pregnancy outcomes. Mol Cytogenet 2022; 15:37. [PMID: 35989338 PMCID: PMC9394009 DOI: 10.1186/s13039-022-00615-z] [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: 06/08/2022] [Accepted: 07/26/2022] [Indexed: 11/25/2022] Open
Abstract
Complex chromosomal rearrangements (CCR) are rare chromosomal structural abnormalities. The chromosomal structural variants in CCR carriers are one of the factors contributing to a history of adverse pregnancy and childbirth. In this study, we report a patient with a history of adverse pregnancy and childbirth who exhibited complex balanced chromosomal translocations. The female patient was phenotypically and intellectually normal; in her first pregnancy, the embryo was damaged, and a histological examination of the chromosomes of the embryos revealed a deletion of approximately 4.66 Mb at 1p32.3p32.2, a duplication of approximately 1.02 Mb at 1p22.2p22.1, a duplication of approximately 1.46 Mb at 6q27 and a deletion of approximately 7.78 Mb at 9p24.3p24.1. Chromosomal examinations of the patient revealed the karyotype to be 46,XX,(1;9)(p32; p34). In the second pregnancy, the foetus was diagnosed prenatally with three or more positive ultrasound soft indicators. The patient's karyotype was re-examined and further confirmed by fluorescence in situ hybridisation as 46,XX,t(1;9;6)(p31;p22;q27), revealing this patient was a carrier of complex balanced chromosomal translocations. Carriers of CCR have a higher risk of spontaneous abortion, and genetic counselling clinicians should consider the karyotype analyses of such patients in clinical practice and recheck their chromosomes if necessary.
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Koenig JB, Cantu D, Low C, Sommer M, Noubary F, Croker D, Whalen M, Kong D, Dulla CG. Glycolytic inhibitor 2-deoxyglucose prevents cortical hyperexcitability after traumatic brain injury. JCI Insight 2019; 5:126506. [PMID: 31038473 DOI: 10.1172/jci.insight.126506] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Traumatic brain injury (TBI) causes cortical dysfunction and can lead to post-traumatic epilepsy. Multiple studies demonstrate that GABAergic inhibitory network function is compromised following TBI, which may contribute to hyperexcitability and motor, behavioral, and cognitive deficits. Preserving the function of GABAergic interneurons, therefore, is a rational therapeutic strategy to preserve cortical function after TBI and prevent long-term clinical complications. Here, we explored an approach based on the ketogenic diet, a neuroprotective and anticonvulsant dietary therapy which results in reduced glycolysis and increased ketosis. Utilizing a pharmacologic inhibitor of glycolysis (2-deoxyglucose, or 2-DG), we found that acute in vitro application of 2-DG decreased the excitability of excitatory neurons, but not inhibitory interneurons, in cortical slices from naïve mice. Employing the controlled cortical impact (CCI) model of TBI in mice, we found that in vitro 2-DG treatment rapidly attenuated epileptiform activity seen in acute cortical slices 3 to 5 weeks after TBI. One week of in vivo 2-DG treatment immediately after TBI prevented the development of epileptiform activity, restored excitatory and inhibitory synaptic activity, and attenuated the loss of parvalbumin-expressing inhibitory interneurons. In summary, 2-DG may have therapeutic potential to restore network function following TBI.
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Affiliation(s)
- Jenny B Koenig
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA.,Neuroscience Program, Tufts University Sackler School of Graduate Biomedical Sciences, Boston, Massachusetts, USA
| | - David Cantu
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Cho Low
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA.,Cellular, Molecular, and Developmental Biology Program, Tufts University Sackler School of Graduate Biomedical Sciences, Boston, Massachusetts, USA
| | - Mary Sommer
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Farzad Noubary
- Department of Health Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, USA
| | - Danielle Croker
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Michael Whalen
- Neuroscience Center, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Dong Kong
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Chris G Dulla
- Department of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA
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Pierron L, Irrmann A, de Chalus A, Bloch A, Heide S, Rogers E, Lédée N, Prat-Ellenberg L, Coussement A, Dupont JM, Cassuto NG, Siffroi JP, Rouen A. Double chromosomal translocation in an infertile man: one-step FISH meiotic segregation analysis and reproductive prognosis. J Assist Reprod Genet 2019; 36:973-978. [PMID: 30850901 DOI: 10.1007/s10815-019-01430-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/27/2019] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND The prevalence of chromosomal translocations is 1/500 in the general population. While in the vast majority of cases, carriers have a normal phenotype; they can present with difficulty conceiving due to the presence of a proportion of unbalanced gametes as a consequence of abnormal chromosomal segregation during meiosis. Since complex translocations involve three or more chromosomes, meiotic segregation leads to a greater number of possible combinations which effectively complicate both their study and therapeutic care. CASE PRESENTATION We report on the case of a male carrier of a complex homogeneous double Robertsonian translocation: 44, XY, der(13;14)(q10;q10),der(21;22)(q10;q10). We studied his meiotic segregation by FISH on spermatozoa from the initial sample, as well as following discontinuous gradient centrifugation and after incubation in an hypo-osmotic solution. CONCLUSION We report a method to study in a simple single-step manner the meiotic segregation of double Robertsonian translocations in spermatozoa. Further, our results suggest that reproductive prognosis of affected individuals may be markedly improved by HOST-based sperm selection (HBSS).
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Affiliation(s)
- Lucie Pierron
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Alexandra Irrmann
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Aliénor de Chalus
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Adrien Bloch
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Solveig Heide
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Eli Rogers
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Nathalie Lédée
- Service d'Assistance Médicale à la Procréation, Maternité des Bluets, 4 rue Lasson, 75012, Paris, France
| | - Laura Prat-Ellenberg
- Service d'Assistance Médicale à la Procréation, Maternité des Bluets, 4 rue Lasson, 75012, Paris, France
| | - Aurélie Coussement
- Service de Cytogénétique, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, 27 rue du Faubourg Saint Jacques, 75014, Paris, France.,Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, France
| | - Jean-Michel Dupont
- Service de Cytogénétique, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, 27 rue du Faubourg Saint Jacques, 75014, Paris, France.,Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, France
| | | | - Jean-Pierre Siffroi
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France
| | - Alexandre Rouen
- Département de Génétique Médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Armand Trousseau, Unité INSERM 933, 26 avenue du Dr Arnold Netter, 75012, Paris, France.
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5
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Two cases of complex balanced autosomal translocations associated with severe oligozoospermia. Gene 2018; 663:126-130. [PMID: 29684482 DOI: 10.1016/j.gene.2018.04.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/21/2018] [Accepted: 04/18/2018] [Indexed: 11/24/2022]
Abstract
Complex balanced autosomal translocation is rare and can lead to impaired spermatogenesis in males; however, its effects on oligozoospermia have rarely been reported. We report here two cases of rare complex balanced translocation in men with infertility. The karyotype of the first case was 46,XY,der(1)t(1;12)(p22;p11.2)ins(9;1)(p24;q25q23),der(9)ins(9;1),der(12)t(1;12)·ish der(1)t(1;12)(RP11-636B1+;RP11-659D23+)ins(9;1)(RP11-118P13+),der(9)ins(9;1),der(12)t(1;12). And the patient showed severe oligozoospermia with adult schizophrenia without other abnormalities. The karyotype of the second patient was 46,XY,der(5)t(5;11)(q14;p11.2),der(11)t(11;18)(p11.2;q11.2),der(18)t(5,18)(q14;p11.3)add(18)(q11.2?)·ish der(5)t(5;11)(RP11-846K3+,RP11-89B9+),der(11)t(11;18)(RP11-89B9-,RP11-170L12+,RP11-469N6+),der(18)t(5;18)(RP11-125L2+,RP11-29M13+)add(18)(q11.2?), and the patient displayed severe oligozoospermia without other abnormalities. The two cases were verified by fluorescent in situ hybridization, and no abnormalities were found by genome-wide copy number variation analysis. To our knowledge, these two cases of complex autosomal karyotypes have not been reported previously. Although rare, these cases suggest that complex balanced translocations may be important causes of oligozoospermia. We speculate that the balanced translocation hinders germ cell meiosis and causes impaired spermatogenesis. Accordingly, the two reported patients have very low probabilities of giving birth to a normal child; therefore, we suggest choosing donor semen or adopting a child.
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6
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Priya PK, Mishra VV, Liehr T, Ziegler M, Tiwari S, Patel A, Chettiar SS, Patel H. Characterization of a complex chromosomal rearrangement involving chromosomes 1, 3, and 4 in a slightly affected male with bad obstetrics history. J Assist Reprod Genet 2018; 35:721-725. [PMID: 29359264 DOI: 10.1007/s10815-018-1117-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 01/04/2018] [Indexed: 10/18/2022] Open
Affiliation(s)
- Pritti K Priya
- Genetic Division, Department of Obstetrics and Gynaecology, Institute of Kidney Diseases and Research Centre (IKDRC-ITS), Ahmedabad, 380016, India.
| | - Vineet V Mishra
- Department of Obstetrics and Gynaecology, IKDRC, Ahmedabad, Gujarat, India
| | - Thomas Liehr
- Jena University Hospital, Institute of Human Genetics, Friedrich Schiller University, Kollegiengasse 10, 07743, Jena, Germany
| | - Monika Ziegler
- Jena University Hospital, Institute of Human Genetics, Friedrich Schiller University, Kollegiengasse 10, 07743, Jena, Germany
| | - Stuti Tiwari
- All India Child Development and Genetic Centre, Lawyers Colony, Agra, 282005, India
| | - Alpesh Patel
- Geneexplore Diagnostics and Research Centre Pvt. Ltd., Ahmedabad, India
| | | | - Hetvi Patel
- Department of Obstetrics and Gynaecology, IKDRC, Ahmedabad, Gujarat, India
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7
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Trpchevska N, Dimova I, Arabadji T, Milachich T, Angelova S, Dimitrova M, Hristova-Savova M, Andreeva P, Timeva T, Shterev A. A family study of complex chromosome rearrangement involving chromosomes 1, 8, and 11 and its reproductive consequences. J Assist Reprod Genet 2017; 34:659-669. [PMID: 28236108 PMCID: PMC5427656 DOI: 10.1007/s10815-017-0893-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/09/2017] [Indexed: 10/20/2022] Open
Abstract
Complex chromosome translocations are structural chromosomal rearrangements involving three or more chromosomes and more than two breakpoints. A complex chromosome rearrangement was detected in a phenotypically normal female patient that was referred to the hospital for genetic counseling due to reproductive failure. A cytogenetic evaluation was performed, according to standard method of chromosomal analysis, using G-banding technique. The patient's karyotype showed a balanced complex chromosome rearrangement (BCCR) involving chromosomes 1, 8, and 11 with three breakpoints 1p31, 8q13, and 11q23. The karyotype designed according to ISCN (2013), is 46,XX,t(1;8;11)(p31;q13;q23) (8qter→8q13::1p31→1qter;8pter→8q13::11q23→11qter;11pter→11q23::1p31→1pter). Additionally, the proband's mother and brother were tested, resulting in the same exact translocation. In this study, we describe all possible meiotic segregations regarding this translocation, as well as the clinical phenotypes which could arise, if unbalanced products of conception survive. This is a rare case of familial complex chromosome rearrangement, giving a view for its reproductive consequences.
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Affiliation(s)
- Natalia Trpchevska
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria.
- Laboratory of Cytogenetics and Molecular Genetics, National Specialized Hospital for Active Therapy of Hematological Diseases, Plovdivsko pole str 6, 1756, Sofia, Bulgaria.
| | - Ivanka Dimova
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria
- Department of Medical Genetics, Medical University Sofia, Zdrave str 2, 1431, Sofia, Bulgaria
| | - Tatyana Arabadji
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria
| | - Tanya Milachich
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria
| | - Svetlana Angelova
- Laboratory of Cytogenetics and Molecular Genetics, National Specialized Hospital for Active Therapy of Hematological Diseases, Plovdivsko pole str 6, 1756, Sofia, Bulgaria
| | | | | | - Petya Andreeva
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria
| | - Tania Timeva
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria
| | - Atanas Shterev
- SAGBAL "Dr Shterev", Hristo Blagoev Str. 25-31, 1330, Sofia, Bulgaria
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8
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Chromosomal instability in mammalian pre-implantation embryos: potential causes, detection methods, and clinical consequences. Cell Tissue Res 2015; 363:201-225. [PMID: 26590822 DOI: 10.1007/s00441-015-2305-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 09/24/2015] [Indexed: 01/08/2023]
Abstract
Formation of a totipotent blastocyst capable of implantation is one of the first major milestones in early mammalian embryogenesis, but less than half of in vitro fertilized embryos from most mammals will progress to this stage of development. Whole chromosomal abnormalities, or aneuploidy, are key determinants of whether human embryos will arrest or reach the blastocyst stage. Depending on the type of chromosomal abnormality, however, certain embryos still form blastocysts and may be morphologically indistinguishable from chromosomally normal embryos. Despite the implementation of pre-implantation genetic screening and other advanced in vitro fertilization (IVF) techniques, the identification of aneuploid embryos remains complicated by high rates of mosaicism, atypical cell division, cellular fragmentation, sub-chromosomal instability, and micro-/multi-nucleation. Moreover, several of these processes occur in vivo following natural human conception, suggesting that they are not simply a consequence of culture conditions. Recent technological achievements in genetic, epigenetic, chromosomal, and non-invasive imaging have provided additional embryo assessment approaches, particularly at the single-cell level, and clinical trials investigating their efficacy are continuing to emerge. In this review, we summarize the potential mechanisms by which aneuploidy may arise, the various detection methods, and the technical advances (such as time-lapse imaging, "-omic" profiling, and next-generation sequencing) that have assisted in obtaining this data. We also discuss the possibility of aneuploidy resolution in embryos via various corrective mechanisms, including multi-polar divisions, fragment resorption, endoreduplication, and blastomere exclusion, and conclude by examining the potential implications of these findings for IVF success and human fecundity.
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9
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Chatziparasidou A, Christoforidis N, Samolada G, Nijs M. Sperm aneuploidy in infertile male patients: a systematic review of the literature. Andrologia 2014; 47:847-60. [PMID: 25352353 DOI: 10.1111/and.12362] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2014] [Indexed: 11/30/2022] Open
Abstract
Males with abnormal karyotypes and subgroups of fertile and infertile males with normal karyotypes may be at risk of producing unbalanced or aneuploid spermatozoa. Biological, clinical, environmental and other factors may also cause additional sperm aneuploidy. However, increased risk of sperm aneuploidy is directly related to chromosomally abnormal embryo production and hence to poor reproductive potential. This systemic literature review focuses on the identification of these males because this is an essential step in the context of assisted reproduction. This research may allow for a more personalised and, hence, more accurate estimation of the risk involved in each case, which in turn will aid genetic counselling for affected couples and help with informed decision-making.
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Affiliation(s)
- A Chatziparasidou
- Embryolab SA, IVF Unit, Kalamaria, Thessaloniki, Greece.,Embryolab Academy, Kalamaria, Thessaloniki, Greece
| | - N Christoforidis
- Embryolab SA, IVF Unit, Kalamaria, Thessaloniki, Greece.,Embryolab Academy, Kalamaria, Thessaloniki, Greece
| | - G Samolada
- Embryolab SA, IVF Unit, Kalamaria, Thessaloniki, Greece
| | - M Nijs
- Embryolab SA, IVF Unit, Kalamaria, Thessaloniki, Greece.,Embryolab Academy, Kalamaria, Thessaloniki, Greece
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Pellestor F, Gatinois V, Puechberty J, Geneviève D, Lefort G. Chromothripsis: potential origin in gametogenesis and preimplantation cell divisions. A review. Fertil Steril 2014; 102:1785-96. [PMID: 25439810 DOI: 10.1016/j.fertnstert.2014.09.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/04/2014] [Accepted: 09/04/2014] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To review the discovery of chromothripsis and analyze its impact on human reproduction. DESIGN Database and literature analysis. SETTING University hospital. PATIENT(S) Carriers of massive and complex chromosomal rearrangements. INTERVENTION(S) Cytogenetic analysis and molecular testing (fluorescence in situ hybridization, microarray, whole-genome sequencing). MAIN OUTCOME MEASURE(S) Chromothripsis occurrence in human gametes and preimplantation embryos, with regard to the potential causative mechanisms described in literature. RESULT(S) Databases were searched for the literature published up to March 2014. Chromothripsis is characterized by the shattering of one (or a few) chromosome segments followed by a haphazard reassembly of the fragments generated, arising through a single initial catastrophic event. Several mechanisms involving abortive apoptosis, telomere erosion, mitotic errors, micronuclei formation, and p53 inactivation might cause chromothripsis. The remarkable point is that all these plausible mechanisms have been identified in the field of human reproduction as causal factors for reproductive failures and the genesis of chromosomal abnormalities. Specific features of gametogenesis and early embryonic development such as the weakness of cell cycle and mitosis checkpoints and the rapid kinetics of division in germ cells and early cleavage embryos may contribute to the emergence of chromothripsis. CONCLUSION(S) The discovery of this new class of massive chromosomal rearrangement has deeply modified our understanding on the genesis of complex genomic rearrangements. Data presented in this review support the assumption that chromothripsis could operate in human germlines and during early embryonic development. Chromothripsis might arise more frequently than previously thought in both gametogenesis and early human embryogenesis.
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Affiliation(s)
- Franck Pellestor
- Laboratory of Chromosomal Genetics, Department of Medical Genetics, Arnaud de Villeneuve Hospital, Montpellier CHRU, Montpellier, France; INSERM Unit Plasticity of the Genome and Aging, Institute of Functional Genomics, Montpellier, France.
| | - Vincent Gatinois
- Laboratory of Chromosomal Genetics, Department of Medical Genetics, Arnaud de Villeneuve Hospital, Montpellier CHRU, Montpellier, France; INSERM Unit Plasticity of the Genome and Aging, Institute of Functional Genomics, Montpellier, France
| | - Jacques Puechberty
- Laboratory of Chromosomal Genetics, Department of Medical Genetics, Arnaud de Villeneuve Hospital, Montpellier CHRU, Montpellier, France
| | - David Geneviève
- Laboratory of Chromosomal Genetics, Department of Medical Genetics, Arnaud de Villeneuve Hospital, Montpellier CHRU, Montpellier, France
| | - Geneviève Lefort
- Laboratory of Chromosomal Genetics, Department of Medical Genetics, Arnaud de Villeneuve Hospital, Montpellier CHRU, Montpellier, France
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11
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Comprehensive meiotic segregation analysis of a 4-breakpoint t(1;3;6) complex chromosome rearrangement using single sperm array comparative genomic hybridization and FISH. Reprod Biomed Online 2014; 29:499-508. [DOI: 10.1016/j.rbmo.2014.06.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/13/2014] [Accepted: 06/17/2014] [Indexed: 11/17/2022]
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12
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Liao Y, Wang L, Zhang D, Liu C. Identification of a balanced complex chromosomal rearrangement involving chromosomes 3, 18 and 21 with recurrent abortion: case report. Mol Cytogenet 2014; 7:39. [PMID: 24959204 PMCID: PMC4066826 DOI: 10.1186/1755-8166-7-39] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 06/02/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Complex chromosome rearrangements (CCRs) are constitutional structural rearrangements involve more than two breakpoints on two or more chromosomes. Balanced CCR carriers are often phenotypically normal but associated with high risk of spontaneous abortion and having abnormal offspring with unbalanced karyotype. Here, we report a new familial case of complex chromosome structural aberrations involving chromosomes 3, 18 and 21 and four breakpoints. RESULTS Cytogenetic investigations showed a complex chromosomal chromosome rearrangement involving chromosomes 3, 18 and 21 with four breakpoints. 2 of 4 breakpoints were within the long arm of chromosome 18. Three-color fluorescence in situ hybridization (FISH) confirmed the complexity of the rearrangement and showed the derivative 21 to be composed of 3 distinct segments derived from chromosomes 21, 18, and 3. The karyotype of CCR carrier was determined as 46,XX,t(3;21;18)(3pter → 3q12::18q23 → 18qter;21pter → 21q22.1::18q21.1 → 18q23::3q12 → 3qter; 18pter → 18q21.1::21q22.1 → 21qter). DISCUSSION A new complex balanced CCR was characterized using conventional high resolution banding and molecular cytogenetic analysis. The results provided an explanation of recurrent abortion and abnormal child for balanced CCR carriers. Genetic counselling and prenatal diagnosis for couples with a balanced CCR is necessary since they have a high risk of having a child with unbalanced karyotype. Additional studies to reveal the molecular mechanism of CCRs would help reveal the rule of inherited CCRs in offspring.
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Affiliation(s)
- Yaping Liao
- Department of Cell Biology, Bengbu Medical College, Bengbu 233030, China
| | - Liqun Wang
- Department of obstetrics and gynecology, the First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui, People's Republic of China
| | - Ding Zhang
- Department of Cell Biology, Bengbu Medical College, Bengbu 233030, China
| | - Changqing Liu
- Department of Cell Biology, Bengbu Medical College, Bengbu 233030, China
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Olszewska M, Huleyuk N, Fraczek M, Zastavna D, Wiland E, Kurpisz M. Sperm FISH and chromatin integrity in spermatozoa from a t(6;10;11) carrier. Reproduction 2014; 147:659-70. [DOI: 10.1530/rep-13-0533] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Complex chromosome rearrangements (CCRs) are structurally balanced or unbalanced aberrations involving more than two breakpoints on two or more chromosomes. CCRs can be a potential reason for genomic imbalance in gametes, which leads to a drastic reduction in fertility. In this study, the meiotic segregation pattern, aneuploidy of seven chromosomes uninvolved in the CCR and chromatin integrity were analysed in the ejaculated spermatozoa of a 46,XY,t(6;10;11)(q25.1;q24.3;q23.1)mat carrier with asthenozoospermia and a lack of conception. The frequency of genetically unbalanced spermatozoa was 78.8% with a prevalence of 4:2 segregants of 38.2%, while the prevalence of the adjacent 3:3 mode was 35.3%. Analysis of the aneuploidy of chromosomes 13, 15, 18, 21, 22, X and Y revealed an approximately fivefold increased level in comparison with that of the control group, indicating the presence of an interchromosomal effect. Sperm chromatin integrity status was evaluated using chromomycin A3 and aniline blue staining (deprotamination), acridine orange test and TUNEL assay (sperm DNA fragmentation). No differences were found when comparisons were made with a control group. We suggest that the accumulation of genetically unbalanced spermatozoa, significantly increased sperm aneuploidy level and decreased sperm motility (20%, progressive) were not responsible for the observed lack of reproductive success in the analysed infertile t(6;10;11) carrier. Interestingly, in the case described herein, a high level of sperm chromosomal imbalance appears not to be linked to sperm chromatin integrity status.
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Nguyen MH, Morel F, Pennamen P, Parent P, Douet-Guilbert N, Le Bris MJ, Basinko A, Roche S, De Braekeleer M, Perrin A. Balanced complex chromosome rearrangement in male infertility: case report and literature review. Andrologia 2014; 47:178-85. [DOI: 10.1111/and.12245] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2013] [Indexed: 01/18/2023] Open
Affiliation(s)
- M. H. Nguyen
- Laboratoire d'Histologie, Embryologie et Cytogénétique; Faculté de Médecine et des Sciences de la Santé; Université de Bretagne Occidentale; Brest France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1078; Brest France
| | - F. Morel
- Laboratoire d'Histologie, Embryologie et Cytogénétique; Faculté de Médecine et des Sciences de la Santé; Université de Bretagne Occidentale; Brest France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1078; Brest France
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - P. Pennamen
- Laboratoire d'Histologie, Embryologie et Cytogénétique; Faculté de Médecine et des Sciences de la Santé; Université de Bretagne Occidentale; Brest France
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - P. Parent
- Département de Pédiatrie et de Génétique Médicale; Hôpital Morvan; CHRU Brest; Brest France
| | - N. Douet-Guilbert
- Laboratoire d'Histologie, Embryologie et Cytogénétique; Faculté de Médecine et des Sciences de la Santé; Université de Bretagne Occidentale; Brest France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1078; Brest France
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - M. J. Le Bris
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - A. Basinko
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - S. Roche
- Service de Gynécologie Obstétrique - Médecine de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - M. De Braekeleer
- Laboratoire d'Histologie, Embryologie et Cytogénétique; Faculté de Médecine et des Sciences de la Santé; Université de Bretagne Occidentale; Brest France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1078; Brest France
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
| | - A. Perrin
- Laboratoire d'Histologie, Embryologie et Cytogénétique; Faculté de Médecine et des Sciences de la Santé; Université de Bretagne Occidentale; Brest France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1078; Brest France
- Service de Cytogénétique, Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest France
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Pellestor F. Chromothripsis: how does such a catastrophic event impact human reproduction? Hum Reprod 2014; 29:388-93. [DOI: 10.1093/humrep/deu003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Meiotic outcomes of three-way translocations ascertained in cleavage-stage embryos: refinement of reproductive risks and implications for PGD. Eur J Hum Genet 2013; 22:748-53. [PMID: 24129433 DOI: 10.1038/ejhg.2013.237] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 08/30/2013] [Accepted: 09/10/2013] [Indexed: 11/09/2022] Open
Abstract
Our study provides an analysis of the outcome of meiotic segregation of three-way translocations in cleavage-stage embryos and the accuracy and limitations of preimplantation genetic diagnosis (PGD) using the fluorescence in situ hybridization technique. We propose a general model for estimating reproductive risks for carriers of this class of complex chromosome rearrangement. The data presented describe six cycles for four couples where one partner has a three-way translocation. For male heterozygotes, 27.6% of embryos were consistent with 3:3 alternate segregation resulting in a normal or balanced translocation chromosome complement; 41.4% were consistent with 3:3 adjacent segregation of the translocations, comprising 6.9% reflecting adjacent-1 and 34.5% adjacent-2 segregation; 24.1% were consistent with 4:2 nondisjunction; none showed 5:1 or 6:0 segregation; the probable mode could not be ascertained for 6.9% of embryos due to complex mosaicism or nucleus fragmentation. The test accuracy for male heterozygotes was estimated to be 93.1% with 100% sensitivity and 75% specificity. With 72.4% prevalence, the predictive value was estimated to be 91.3% for an abnormal test result and 100% for a normal test result. Two of four couples had a healthy baby following PGD. The proportion of normal/balanced embryo could be significantly less for female heterozygotes, and our model indicates that this could be detrimental to the effectiveness of PGD. A 20% risk of live-born offspring with an unbalanced translocation is generally accepted, largely based on the obstetric history of female heterozygotes; we suggest that a 3% risk may be more appropriate for male carriers.
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Sequential FISH allows the determination of the segregation outcome and the presence of numerical anomalies in spermatozoa from a t(1;8;2)(q42;p21;p15) carrier. J Assist Reprod Genet 2013; 30:1115-23. [PMID: 23975190 DOI: 10.1007/s10815-013-0063-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 07/17/2013] [Indexed: 10/26/2022] Open
Abstract
PURPOSE To find out the meiotic segregation behaviour of the t(1;8;2)(q42;p21;p15), to evaluate the occurrence of interchromosomal effects, and to determine whether there is an accumulation of unbalanced products in aneuploid/diploid gametes. METHODS A sequential FISH protocol based on two successive hybridization rounds over the same spermatozoa was performed to determine the segregation outcome of the rearranged chromosomes. The presence of numerical abnormalities for 13, 18, 21, X and Y was also evaluated by sperm FISH. Those aneuploid/diploid gametes were subsequently relocalized and analyzed for their segregation content through additional hybridization rounds. RESULTS The segregation pattern observed reported a very low production of normal/balanced gametes (11.7 %). Significant increased frequencies of diploidies and disomies for chromosomes X/Y and 18 were detected (p < 0.001). Aneuploid and diploid spermatozoa displayed significant increases of 5:1, 6:0 and other unexpected disjunction modes (p < 0.001). CONCLUSIONS The strategy developed in this study is a reliable new approach to establish the full segregation pattern of complex chromosome rearrangements (CCR). Results corroborate the low number of normal/balanced spermatozoa produced by CCR carriers and support previous findings regarding an altered segregation pattern in gametes with numerical abnormalities. Altogether this confirms the importance of PGD as a tool to prevent the transmission of chromosomal abnormalities to the offspring in CCR patients.
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Ferfouri F, Boitrelle F, Clement P, Molina Gomes D, Selva J, Vialard F. Sperm FISH analysis of a 44,X,der(Y),t(Y;15)(q12;q10)pat,rob(13;14)(q10;q10)mat complex chromosome rearrangement. Andrologia 2013; 46:576-82. [DOI: 10.1111/and.12112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2013] [Indexed: 01/15/2023] Open
Affiliation(s)
- F. Ferfouri
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | - F. Boitrelle
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | | | - D. Molina Gomes
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | - J. Selva
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | - F. Vialard
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
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Ferfouri F, Boitrelle F, Clément P, Molina Gomes D, Selva J, Vialard F. Can one translocation impact the meiotic segregation of another translocation? A sperm-FISH analysis of a 46,XY,t(1;16)(q21;p11.2),t(8;9) (q24.3;p24) patient and his 46,XY,t(8;9)(q24.3;p24) brother and cousin. ACTA ACUST UNITED AC 2012; 19:109-17. [DOI: 10.1093/molehr/gas048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Madan K. Balanced complex chromosome rearrangements: Reproductive aspects. A review. Am J Med Genet A 2012; 158A:947-63. [DOI: 10.1002/ajmg.a.35220] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 12/07/2011] [Indexed: 11/05/2022]
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Sperm FISH analysis of a 46,XY,t(3;6)(p24;p21.2),inv (8)(p11;2q21.2) double chromosomal rearrangement. Reprod Biomed Online 2012; 24:219-23. [DOI: 10.1016/j.rbmo.2011.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 08/29/2011] [Accepted: 10/18/2011] [Indexed: 11/16/2022]
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De novo exceptional complex chromosomal rearrangement in a healthy fertile male: case report and review of the literature. Fertil Steril 2011; 96:1160-4. [PMID: 21851937 DOI: 10.1016/j.fertnstert.2011.07.1114] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 06/14/2011] [Accepted: 07/20/2011] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To report a de novo exceptional complex chromosomal rearrangement (CCR) with four breakpoints in the male partner of a couple with recurrent abortions. DESIGN Case report and review of the literature. SETTING Genetics laboratory in a private hospital. PATIENT(S) A couple referred for recurrent abortions. INTERVENTION(S) Cytogenetic and sperm fluorescence in situ hybridization (FISH) techniques. MAIN OUTCOME MEASURE(S) Karyotype and FISH sperm results. RESULT(S) The couple was phenotypically normal, with no family history of miscarriage or infertility. Female karyotype was normal. Male karyotype followed by FISH analysis showed a de novo CCR with four breakpoints: t(5,13,16)(q11.1, q14.3, q12.2), ins(16;13)(q12.2;q?q14.2). ish t(5;13;16)(wcp5+,wcp13+), ins(16;13)(wcp13+). CONCLUSION(S) Exceptional de novo CCR male carriers with recurrent abortions are extremely rare. Patients with CCRs have limited options to achieve a normal pregnancy. Careful consideration and assessment should be provided upon counseling of couples with CCRs.
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Kirkpatrick G, Ma S. Meiotic segregation and interchromosomal effects in a rare (1:2:10) complex chromosomal rearrangement. J Assist Reprod Genet 2011; 29:77-81. [PMID: 22105185 DOI: 10.1007/s10815-011-9655-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Accepted: 10/19/2011] [Indexed: 11/26/2022] Open
Abstract
PURPOSE Complex chromosomal rearrangements (CCR) are rare rearrangements involving more than two chromosomes and more than two breakpoints. CCR are associated with male infertility as a result of the disruption of spermatogenesis due to complex meiotic configurations and the production of chromosomally abnormal sperm. We examined a carrier of a t(1:2:10) CCR in order to determine the patterns of segregation and any presence of an interchromosomal effect (ICE). METHODS Centromeric, locus specific and telomeric probes (Vysis, USA) were used for the study. On ~1,000 sperm nuclei from the reciprocal translocation carrier, dual color Fluorescence in situ hybridization (FISH) was performed on each of the involved chromosomes to determine the patterns of segregation. FISH was also performed on chromosome 13, 18, 21, X and Y to determine any ICE. RESULTS We observed abnormal chromosome complements in 24.3%, 19.5% and 15.8% of sperm for chromosomes 2, 10 and 1, respectively. There was a significantly increased rate of ICEs for chromosomes 13 and 21 when compared with controls. CONCLUSIONS CCR may present a lower risk for producing unbalanced chromosomes than other studies have indicated. CCRs may be at an increased risk for ICE especially among acrocentric chromosomes.
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Affiliation(s)
- Gordon Kirkpatrick
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, Canada
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Pellestor F, Puechberty J, Weise A, Lefort G, Anahory T, Liehr T, Sarda P. Meiotic segregation of complex reciprocal translocations: direct analysis of the spermatozoa of a t(5;13;14) carrier. Fertil Steril 2011; 95:2433.e17-22. [DOI: 10.1016/j.fertnstert.2011.01.159] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 01/10/2011] [Accepted: 01/21/2011] [Indexed: 11/29/2022]
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Pellestor F, Anahory T, Lefort G, Puechberty J, Liehr T, Hedon B, Sarda P. Complex chromosomal rearrangements: origin and meiotic behavior. Hum Reprod Update 2011; 17:476-94. [DOI: 10.1093/humupd/dmr010] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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