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Zhou F, Ren J, Li Y, Keqie Y, Peng C, Chen H, Chen X, Liu S. Preimplantation genetic testing in couples with balanced chromosome rearrangement: a four-year period real world retrospective cohort study. BMC Pregnancy Childbirth 2024; 24:86. [PMID: 38280990 PMCID: PMC10821259 DOI: 10.1186/s12884-023-06237-6] [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: 09/11/2023] [Accepted: 12/29/2023] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND Couples with balanced chromosome rearrangement (BCR) are at high risk of recurrent miscarriages or birth defects due to chromosomally abnormal embryos. This study aimed to provide real-world evidence of the euploidy rate of blastocysts from couples with BCR using preimplantation genetic testing (PGT) and to guide pretesting genetic counselling. METHODS A continuous four-year PGT data from couples with BCR were retrospectively analyzed. Biopsied trophectoderm cells were amplified using whole genome amplification, and next-generation sequencing was performed to detect the chromosomal numerical and segmental aberrations. Clinical data and molecular genetic testing results were analyzed and compared among the subgroups. RESULTS A total of 1571 PGT cycles with 5942 blastocysts were performed chromosomal numerical and segmental aberrations detection during the four years. Of them, 1034 PGT cycles with 4129 blastocysts for BCR couples were included; 68.96% (713/1034) PGT cycles had transferable euploid embryos. The total euploidy rate of blastocysts in couples carrying the BCR was 35.29% (1457/4129). Couples with complex BCR had euploid blastocyst rates similar to those of couples with non-complex BCR (46.15% vs. 35.18%, P > 0.05). Chromosome inversion had the highest chance of obtaining a euploid blastocyst (57.27%), followed by Robertsonian translocation (RobT) (46.06%), and the lowest in reciprocal translocation (RecT) (30.11%) (P < 0.05). Couples with males carrying RobT had higher rates of euploid embryo both in each PGT cycles and total blastocysts than female RobT carriers did, despite the female age in male RobT is significant older than those with female RobT (P < 0.05). The proportions of non-carrier embryos were 52.78% (95/180) and 47.06% (40/85) in euploid blastocysts from couples with RecT and RobT, respectively (P > 0.05). RecT had the highest proportion of blastocysts with translocated chromosome-associated abnormalities (74.23%, 1527/2057), followed by RobT (54.60%, 273/500) and inversion (30.85%, 29/94) (P < 0.05). CONCLUSIONS In couples carrying BCR, the total euploidy rate of blastocysts was 35.29%, with the highest in inversion, followed by RobT and RecT. Even in couples carrying complex BCR, the probability of having a transferable blastocyst was 46.15%. Among the euploid blastocysts, the non-carrier ratios in RecT and RobT were 52.78% and 47.06%, respectively. RecT had the highest proportion of blastocysts with translocated chromosome-associated abnormalities.
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Affiliation(s)
- Fan Zhou
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China
| | - Jun Ren
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China
| | - Yutong Li
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China
| | - Yuezhi Keqie
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China
| | - Cuiting Peng
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China
| | - Han Chen
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China
| | - Xinlian Chen
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China.
| | - Shanling Liu
- Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan, China.
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Tonyan ZN, Puppo IL, Saifitdinova AF, Vavilova TV, Glotov AS. Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers. COMPARATIVE CYTOGENETICS 2024; 18:1-13. [PMID: 38298496 PMCID: PMC10825968 DOI: 10.3897/compcytogen.18.115070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/21/2023] [Indexed: 02/02/2024]
Abstract
Patterns of meiotic chromosome segregation were analyzed in cleavage stage and blastocyst stage human embryos from couples with autosomal reciprocal translocations (ART). The influence of quadrivalent asymmetry degree, the presence of terminal breakpoints, and the involvement of acrocentric chromosomes in the rearrangement were analyzed to evaluate their contribution to the formation of non-viable embryos with significant chromosomal imbalance due to pathological segregation patterns and to assess the selection of human embryos by the blastocyst stage. A selection of viable embryos resulting from alternate and adjacent-1 segregation and a significant reduction in the detection frequency of the 3 : 1 segregation pattern were observed in human embryos at the blastocyst stage. The presence of terminal breakpoints increased the frequency of 3 : 1 segregation and was also associated with better survival of human embryos resulting from adjacent-1 mode, reflecting the process of natural selection of viable embryos to the blastocyst stage. The demonstrated patterns of chromosome segregation and inheritance of a balanced karyotype in humans will contribute to optimizing the prediction of the outcomes of in vitro fertilization programs and assessing the risks of the formation of unbalanced embryos for ART carriers.
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Affiliation(s)
- Ziravard N. Tonyan
- D. O. Ott Research Institute of Obstetrics, Gynaecology and Reproductology, 3 Mendeleevskaya Line, 199034, Saint Petersburg, RussiaAlmazov National Medical Research CentreSaint PetersburgRussia
- Almazov National Medical Research Centre, 2 Akkuratova Street, 197341, Saint Petersburg, RussiaD. O. Ott Research Institute of Obstetrics, Gynaecology and ReproductologySaint PetersburgRussia
| | - Irina L. Puppo
- Almazov National Medical Research Centre, 2 Akkuratova Street, 197341, Saint Petersburg, RussiaD. O. Ott Research Institute of Obstetrics, Gynaecology and ReproductologySaint PetersburgRussia
- International Centre for Reproductive Medicine, 53/1 Komendantskij prospect, 197350, Saint Petersburg, RussiaInternational Centre for Reproductive MedicineSaint PetersburgRussia
| | - Alsu F. Saifitdinova
- International Centre for Reproductive Medicine, 53/1 Komendantskij prospect, 197350, Saint Petersburg, RussiaInternational Centre for Reproductive MedicineSaint PetersburgRussia
- Department of Human and Animal Anatomy and Physiology, Herzen State Pedagogical University of Russia, 48 Moyka River Embankment, 191186, Saint Petersburg, RussiaHerzen State Pedagogical University of RussiaSaint PetersburgRussia
| | - Tatyana V. Vavilova
- Almazov National Medical Research Centre, 2 Akkuratova Street, 197341, Saint Petersburg, RussiaD. O. Ott Research Institute of Obstetrics, Gynaecology and ReproductologySaint PetersburgRussia
| | - Andrey S. Glotov
- D. O. Ott Research Institute of Obstetrics, Gynaecology and Reproductology, 3 Mendeleevskaya Line, 199034, Saint Petersburg, RussiaAlmazov National Medical Research CentreSaint PetersburgRussia
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Dang T, Xie P, Zhang Z, Hu L, Tang Y, Tan Y, Luo K, Gong F, Lu G, Lin G. The effect of carrier characteristics and female age on preimplantation genetic testing results of blastocysts from Robertsonian translocation carriers. J Assist Reprod Genet 2023:10.1007/s10815-023-02853-5. [PMID: 37338749 PMCID: PMC10371959 DOI: 10.1007/s10815-023-02853-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/31/2023] [Indexed: 06/21/2023] Open
Abstract
PURPOSE To analyze factors affecting segregation and ploidy results from Robertsonian carriers, and determine chromosomes involved impact chromosome stability during meiosis and mitosis. METHODS This retrospective study include 928 oocyte retrieval cycles from 763 couples with Robertsonian translocations undergoing preimplantation genetic testing for structural rearrangements (PGT-SR) using next-generation sequencing (NGS) between December 2012 and June 2020.The segregation patterns of the trivalent of 3423 blastocysts were analyzed according to the carrier's sex and age. A total of 1492 couples who received preimplantation genetic testing for aneuploidy (PGT-A) were included as the control group and matched according to maternal age and testing time stage. RESULTS A total of 1728 (50.5%) normal/balanced embryos were identified from 3423 embryos diagnosed. The rate of alternate segregation in male Robertsonian translocation carriers was significantly higher than that in female carriers (82.3% vs. 60.0%, P < 0.001). However, the segregation ratio exhibited no difference between young and older carriers. Further, increasing maternal age decreased the proportion of transferable embryo cycle in both female and male carriers. And the ratio of chromosome mosaic from the Robertsonian translocation carrier group was significantly higher than that in the PGT-A control group (1.2% vs. 0.5%, P < 0.01). CONCLUSIONS The meiotic segregation modes were affected by the carrier sex and were independent of the carrier's age. Advanced maternal age decreased the probability of obtaining a normal/balanced embryo. In additional, the Robertsonian translocation chromosome could increase the possibility of chromosome mosaicism during mitosis in blastocysts.
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Affiliation(s)
- Tongyuan Dang
- Hospital of Hunan Guangxiu, Hunan Normal University School of Medicine, Changsha, Hunan, China
| | - Pingyuan Xie
- Hospital of Hunan Guangxiu, Hunan Normal University School of Medicine, Changsha, Hunan, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
| | - Zhiqi Zhang
- Hospital of Hunan Guangxiu, Hunan Normal University School of Medicine, Changsha, Hunan, China
| | - Liang Hu
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China
| | - Yi Tang
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China
| | - Yueqiu Tan
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China
| | - Keli Luo
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China
| | - Fei Gong
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China
| | - Guangxiu Lu
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China
- National Engineering and Research Center of Human Stem Cells, Changsha, China
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China
| | - Ge Lin
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha, China.
- National Engineering and Research Center of Human Stem Cells, Changsha, China.
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China.
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, Hunan, China.
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Del Llano E, Perrin A, Morel F, Devillard F, Harbuz R, Satre V, Amblard F, Bidart M, Hennebicq S, Brouillet S, Ray PF, Coutton C, Martinez G. Sperm Meiotic Segregation Analysis of Reciprocal Translocations Carriers: We Have Bigger FISH to Fry. Int J Mol Sci 2023; 24:ijms24043664. [PMID: 36835074 PMCID: PMC9965694 DOI: 10.3390/ijms24043664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Reciprocal translocation (RT) carriers produce a proportion of unbalanced gametes that expose them to a higher risk of infertility, recurrent miscarriage, and fetus or children with congenital anomalies and developmental delay. To reduce these risks, RT carriers can benefit from prenatal diagnosis (PND) or preimplantation genetic diagnosis (PGD). Sperm fluorescence in situ hybridization (spermFISH) has been used for decades to investigate the sperm meiotic segregation of RT carriers, but a recent report indicates a very low correlation between spermFISH and PGD outcomes, raising the question of the usefulness of spermFISH for these patients. To address this point, we report here the meiotic segregation of 41 RT carriers, the largest cohort reported to date, and conduct a review of the literature to investigate global segregation rates and look for factors that may or may not influence them. We confirm that the involvement of acrocentric chromosomes in the translocation leads to more unbalanced gamete proportions, in contrast to sperm parameters or patient age. In view of the dispersion of balanced sperm rates, we conclude that routine implementation of spermFISH is not beneficial for RT carriers.
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Affiliation(s)
- Edgar Del Llano
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
| | - Aurore Perrin
- Department of Medical Genetics and Reproductive Biology, Brest University Regional Hospital, 29200 Brest, France
- Inserm, Université de Bretagne Occidentale, EFS, UMR 1078, GGB, 29200 Brest, France
| | - Frédéric Morel
- Department of Medical Genetics and Reproductive Biology, Brest University Regional Hospital, 29200 Brest, France
- Inserm, Université de Bretagne Occidentale, EFS, UMR 1078, GGB, 29200 Brest, France
| | - Françoise Devillard
- UM de Génétique Chromosomique, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
| | - Radu Harbuz
- UM de Génétique Chromosomique, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
| | - Véronique Satre
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
- UM de Génétique Chromosomique, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
| | - Florence Amblard
- UM de Génétique Chromosomique, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
| | - Marie Bidart
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
| | - Sylviane Hennebicq
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
- Centre Clinique et Biologique d’Assistance Médicale à la Procréation, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
| | - Sophie Brouillet
- DEFE, Université de Montpellier, INSERM 1203, Hôpital Arnaud de Villeneuve, CHU de Montpellier, IRMB, 80 Avenue Augustin Fliche, CEDEX 05, 34295 Montpellier, France
| | - Pierre F. Ray
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
| | - Charles Coutton
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
- UM de Génétique Chromosomique, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
| | - Guillaume Martinez
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, 38000 Grenoble, France
- UM de Génétique Chromosomique, Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, 38000 Grenoble, France
- Correspondence:
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