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Santamonkunrot P, Samutchinda S, Niransuk P, Satirapod C, Sukprasert M. The Association between Embryo Development and Chromosomal Results from PGT-A in Women of Advanced Age: A Prospective Cohort Study. J Clin Med 2024; 13:626. [PMID: 38276130 PMCID: PMC10816670 DOI: 10.3390/jcm13020626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/19/2023] [Accepted: 01/10/2024] [Indexed: 01/27/2024] Open
Abstract
Embryo morphology and morphokinetics have been studied for their association with euploid embryos. However, the results are controversial, especially in the advanced-aged women group, when the risk of aneuploidy increases significantly. This prospective cohort study evaluated the association between embryo development between day-3 cleavage and day-5 blastocyst stages and euploidy rates, determined using preimplantation genetic testing for aneuploidy (PGT-A). Embryos from women aged 35 years and above who underwent intracytoplasmic sperm injections and PGT-A were studied. Day-3 cleavage-stage embryos were evaluated for their cell number, and day-5 blastocyst-stage embryos were evaluated for their morphological grade. Embryo development from day 3 to day 5 was categorized as either good or poor development and evaluated for its association with the PGT-A results. We evaluated 325 embryos from 101 infertile couples. It was found that 55.17% of blastocysts with good development and 29.83% with poor development were euploid. A significant association was found between embryo development and euploidy rates in advanced-aged women (p < 0.001). Also, there were significantly higher rates of euploid embryos with good blastocyst morphological grades, especially blastocyst expansion grades and trophectoderm grades. In conclusion, embryo morphokinetics shows promising results in predicting euploidy in advanced female age.
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Affiliation(s)
| | | | | | | | - Matchuporn Sukprasert
- Reproductive Endocrinology and Infertility Unit, Department of Obstetrics and Gynecology, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.S.); (S.S.); (P.N.); (C.S.)
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2
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Xie P, Kocur OM, Cheung S, Ng L, Albertini DF, Rosenwaks Z, Palermo GD. Sperm centriolar factors and genetic defects that can predict pregnancy. Fertil Steril 2023; 120:720-728. [PMID: 37487819 DOI: 10.1016/j.fertnstert.2023.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
The human sperm centrosome, comprising the two morphologically distinct centrioles and associated pericentriolar materials, plays a crucial role in fertilization and early embryonic development after fertilization. Once inside the oocyte, the sperm centrosome serves as a microtubule-organizing center, orchestrating mitotic spindle formation, chromosome segregation, and syngamy. Abnormalities of the sperm centrosome can lead to abnormal embryonic development and embryonic chromosomal instability, and are associated with pregnancy loss. Recent research has shed light on the molecular composition, regulation, and function of this vital organelle. Understanding the intricacies of the sperm centrosome is crucial for elucidating the mechanisms underlying successful fertilization and early embryonic development, as well as addressing infertility and developmental disorders associated with centrosomal defects.
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Affiliation(s)
- Philip Xie
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | | | - Stephanie Cheung
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | - Lily Ng
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | | | - Zev Rosenwaks
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | - Gianpiero D Palermo
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York.
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3
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Bredbacka P, Capalbo A, Kananen K, Picchetta L, Tomás C. Healthy live birth following embryo transfer of a blastocyst of tetrapronuclear (4PN) origin: a case report. Hum Reprod 2023; 38:1700-1704. [PMID: 37528053 DOI: 10.1093/humrep/dead151] [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: 03/13/2023] [Revised: 05/29/2023] [Indexed: 08/03/2023] Open
Abstract
During IVF treatments, normal fertilization is generally evidenced by the appearance of two pronuclei, one arising from the oocyte and the other from the male gamete. Embryos derived from zygotes with a pronuclei number other than two are assumed to possess a ploidy abnormality and their transfer is usually avoided owing to increased risk of implantation failure, miscarriage, and molar pregnancies. Nonetheless, the inclusion of genotyping data in preimplantation genetic testing has revealed that a normal diploid configuration is possible in embryos deriving from zygotes with an abnormal pronuclei number such as tripronuclear and one pronucleus. Here, we present a one-of-a-kind transfer of a tetrapronuclear-derived embryo that was discovered to be diploid and negative for other whole chromosome or segmental aneuploidies during preimplantation genetic testing using a targeted next-generation sequencing approach. The transfer resulted in the live birth of a healthy infant who is now 4 years old and has no apparent health or developmental impairments.
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4
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Canon C, Thurman A, Li A, Hernandez-Nieto C, Lee JA, Roth RM, Slifkin R, Briton-Jones C, Stein D, Copperman AB. Assessing the clinical viability of micro 3 pronuclei zygotes. J Assist Reprod Genet 2023; 40:1765-1772. [PMID: 37227570 PMCID: PMC10352191 DOI: 10.1007/s10815-023-02830-y] [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: 09/09/2022] [Accepted: 05/09/2023] [Indexed: 05/26/2023] Open
Abstract
PURPOSE What is the rate of euploidy and clinical viability of embryos resulting from micro 3 pronuclei zygotes? METHODS Retrospective cohort analysis in a single, academic in vitro fertilization (IVF) center from March 2018 to June 2021. Cohorts were separated by fertilization as either a 2 pronuclear zygote (2PN) or micro 3 pronuclear zygote (micro 3PN). PGT-A was performed to identify embryonic ploidy rates in embryos created from micro 3PN zygotes. The clinical outcomes of all transferred euploid micro 3PN zygotes were evaluated from frozen embryo transfer (FET) cycles. RESULTS During the designated study period, 75,903 mature oocytes were retrieved and underwent ICSI. Of these, 60,161 were fertilized as 2PN zygotes (79.3%) and 183 fertilized as micro 3PN zygotes (0.24%). Of the micro 3PN-derived embryos that underwent biopsy, 27.5% (n=11/42) were deemed euploid by PGT-A, compared to 51.4% (n=12,301/23,923) of 2PN-derived embryos, p=0.06. Four micro 3PN-derived embryos were transferred in subsequent single euploid FET cycles, which includes one live birth and one ongoing pregnancy. CONCLUSION Micro 3PN zygotes that develop to the blastocyst stage and meet the criteria for embryo biopsy have the potential to be euploid by preimplantation genetic testing for aneuploidy (PGT-A) and if selected for transfer can achieve a live birth. Although there are a significantly lower number of micro 3PN embryos that make it to blastocyst biopsy, the potential to continue to culture abnormally fertilized oocytes may give these patients a chance at pregnancy that they previously did not have.
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Affiliation(s)
- Chelsea Canon
- Department of Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, Klingenstein Pavilion, 9th Floor, 1176 Fifth Avenue, New York, NY, 10029, USA.
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA.
| | - Anabel Thurman
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Albert Li
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Carlos Hernandez-Nieto
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Joseph A Lee
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Rose Marie Roth
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Richard Slifkin
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Christine Briton-Jones
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Daniel Stein
- Department of Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, Klingenstein Pavilion, 9th Floor, 1176 Fifth Avenue, New York, NY, 10029, USA
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
| | - Alan B Copperman
- Department of Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, Klingenstein Pavilion, 9th Floor, 1176 Fifth Avenue, New York, NY, 10029, USA
- Reproductive Medicine Associates of New York, 635 Madison Avenue, 10th Floor, New York, NY, 10022, USA
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5
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Yang J, Wang Y, Li C, Han W, Liu W, Xiong S, Zhang Q, Tong K, Huang G, Zhang X. Variation of Female Pronucleus Reveals Oocyte or Embryo Chromosomal Copy Number Variations. ADVANCED GENETICS (HOBOKEN, N.J.) 2023; 4:2200001. [PMID: 36910589 PMCID: PMC10000260 DOI: 10.1002/ggn2.202200001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 09/20/2022] [Indexed: 11/11/2022]
Abstract
The characteristics of the human pronuclei (PNs), which exist 16-22 h after fertilization, appear to serve as good indicators to evaluate the quality of human oocyte and embryo, and may reflect the status of female and male chromosome composition. Here, a quantitative PN measurement method that is generated by applying expert experience combined with deep learning from large annotated datasets is reported. After mathematic reconstruction of PNs, significant differences are obtained in chromosome-normal rate and chromosomal small errors such as copy number variants by comparing the size of the reconstructive female PN. After integrating the whole procedure of PN dynamics and adjusting for errors that occur during PN identification, the results are robust. Notably, all positive prediction results are obtained from the female propositus population. Thus, the size of female PNs may mirror the internal quality of the chromosomal integrity of the oocyte. Embryos that develop from zygotes with larger female PNs may have a reduced risk of copy number variations.
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Affiliation(s)
- Jingwei Yang
- Center for Reproductive Medicine Women and Children's Hospital of Chongqing Medical University Chongqing Health Center for Women and Children Chongqing 400010 China.,Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China
| | - Yikang Wang
- Department of Mechatronics Graduate School of Medicine, Engineering, and Agricultural Sciences University of Yamanashi Yamanashi-ken 400-8510 Japan
| | - Chong Li
- Center for Reproductive Medicine Women and Children's Hospital of Chongqing Medical University Chongqing Health Center for Women and Children Chongqing 400010 China.,Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China
| | - Wei Han
- Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China.,Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China
| | - Weiwei Liu
- Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China.,Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China
| | - Shun Xiong
- Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China.,Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China
| | - Qi Zhang
- Center for Reproductive Medicine Women and Children's Hospital of Chongqing Medical University Chongqing Health Center for Women and Children Chongqing 400010 China.,Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China
| | - Keya Tong
- Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China.,Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China
| | - Guoning Huang
- Center for Reproductive Medicine Women and Children's Hospital of Chongqing Medical University Chongqing Health Center for Women and Children Chongqing 400010 China.,Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China.,Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China
| | - Xiaodong Zhang
- Center for Reproductive Medicine Women and Children's Hospital of Chongqing Medical University Chongqing Health Center for Women and Children Chongqing 400010 China.,Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China.,Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China
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6
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Transglutaminase 2 crosslinks zona pellucida glycoprotein 3 to prevent polyspermy. Cell Death Differ 2022; 29:1466-1473. [PMID: 35017645 PMCID: PMC9345939 DOI: 10.1038/s41418-022-00933-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/17/2021] [Accepted: 12/28/2021] [Indexed: 11/08/2022] Open
Abstract
Soon after fertilization, the block mechanisms are developed in the zona pellucida (ZP) and plasma membrane of the egg to prevent any additional sperm from binding, penetration, and fusion. However, the molecular basis and underlying mechanism for the post-fertilization block to sperm penetration through ZP has not yet been determined. Here, we find that transglutaminase 2 (Tgm2), an enzyme that catalyzes proteins by the formation of an isopeptide bond within or between polypeptide chains, crosslinks zona pellucida glycoprotein 3 (ZP3) to result in the ZP hardening after fertilization and thus prevents polyspermy. Tgm2 abundantly accumulates in the subcortical region of the oocytes and vanishes upon fertilization. Both inhibition of Tgm2 activity in oocytes by the specific inhibitor in vitro and genetic ablation of Tgm2 in vivo cause the presence of additional sperm in the perivitelline space of fertilized eggs, consequently leading to the polyploid embryos. Biochemically, recombinant Tgm2 binds to and crosslinks ZP3 proteins in vitro, and incubation of oocytes with recombinant Tgm2 protein inhibits the polyspermy. Altogether, our data identify Tgm2 as a participant of zona block to the post-fertilization sperm penetration via hardening ZP surrounding fertilized eggs, extending our current understanding about the molecular basis of block to polyspermy.
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7
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Xu X, Li W, Zhang L, Ji Y, Qin J, Wang L, Wang M, Qi L, Xue J, Lv B, Zhang X, Xue Z. Effect of Sperm Cryopreservation on miRNA Expression and Early Embryonic Development. Front Cell Dev Biol 2022; 9:749486. [PMID: 35004670 PMCID: PMC8728010 DOI: 10.3389/fcell.2021.749486] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/09/2021] [Indexed: 12/26/2022] Open
Abstract
Although sperm preservation is a common means of personal fertility preservation, its effects on embryonic development potential need further investigation. The purpose of this study was to identify key microRNA (miRNA) in cryopreserved sperm and determine the changes of these miRNAs and their target genes during embryonic development using cryopreserved sperm. Moreover, the embryonic development potential of cryopreserved sperm was estimated in assisted reproductive technology (ART), where key miRNAs and target genes were validated in sperm and subsequent embryos. Clinical data of embryonic development from cryopreserved sperm indicated a significant decrease in fertilization rate in both in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) cases, as well as a reduction in blastocyst formation rate in ICSI cases. Meanwhile there was a significant increase in blocked embryo ratio of Day1, Day2, and Day3.5 embryos when frozen-thawed mouse sperm was used, compared with fresh mouse sperm, suggesting a potential negative effect of sperm cryopreservation on embryonic development. From frozen-thawed and fresh sperm in humans and mice, respectively, 21 and 95 differentially expressed miRNAs (DEmiRs) were detected. miR-148b-3p were downregulated in both human and mouse frozen-thawed sperm and were also decreased in embryos after fertilization using cryopreserved sperm. Target genes of miR-148b-3p, Pten, was identified in mouse embryos using quantitative real-time PCR (qRT-PCR) and Western blot (WB). In addition, common characters of cryopreservation of mouse oocytes compared with sperm were also detected; downregulation of miR-148b-3p was also confirmed in cryopreserved oocytes. In summary, our study suggested that cryopreservation of sperm could change the expression of miRNAs, especially the miR-148b-3p across humans and mice, and may further affect fertilization and embryo development by increasing the expression of Pten. Moreover, downregulation of miR-148b-3p induced by cryopreservation was conserved in mouse gametes.
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Affiliation(s)
- Xiaoyu Xu
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Wanqiong Li
- Reproductive Medicine Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lina Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yazhong Ji
- Reproductive Medicine Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiaying Qin
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Lu Wang
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Mingwen Wang
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Lingbin Qi
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Jinfeng Xue
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Bo Lv
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Xunyi Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhigang Xue
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China.,Reproductive Medicine Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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8
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Coticchio G, Barrie A, Lagalla C, Borini A, Fishel S, Griffin D, Campbell A. Plasticity of the human preimplantation embryo: developmental dogmas, variations on themes and self-correction. Hum Reprod Update 2021; 27:848-865. [PMID: 34131722 DOI: 10.1093/humupd/dmab016] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/27/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND IVF for the treatment of infertility offers unique opportunities to observe human preimplantation development. Progress in time-lapse technology (TLT) and preimplantation genetic testing (PGT) has greatly expanded our knowledge of developmental patterns leading to a healthy pregnancy or developmental failure. These technologies have also revealed unsuspected plastic properties of the preimplantation embryo, at macromolecular, cellular and multicellular levels. OBJECTIVE AND RATIONALE This review focuses on the emerging concept of plasticity of the human embryo as revealed by recent evidence derived from TLT and PGT, calling for an updated and more precise redefinition of the boundaries between normal and abnormal development. SEARCH METHODS PubMed was used to search the MEDLINE database for peer-reviewed English-language original articles and reviews concerning human preimplantation development. Cross-searches were performed by adopting 'fertilisation', 'pronucleus', 'cleavage', 'multinucleation', 'compaction', 'embryo', 'preimplantation genetic testing', 'aneuploidy', mosaicism', 'micromanipulation', 'time-lapse microscopy' and 'IVF/assisted reproduction' as main terms. The most relevant publications, i.e. those concerning major phenomena occurring during normal and abnormal development-with a focus on the human species-were assessed and discussed critically. OUTCOMES Advances in TLT and PGT have revealed an astonishing plasticity and self-correction ability of the human preimplantation embryo in vitro. At fertilisation, an abnormal number of pronuclei do not always result in the formation of an aneuploid blastocyst. Animal studies and preliminary human observations indicate that combining of parental genomes may occur at the early cleavage stage, if not at fertilisation. Multinucleation occurs with much higher prevalence than previously thought and may be corrected at later cleavage stages. Irregular cleavage (multichotomous, direct, rapid and reverse cleavages) can generate chromosome segregation abnormalities that often lead to developmental arrest, but that sporadically may be confined to cells excluded from the blastocyst, and may sometimes result in viable pregnancy. Mitotic errors can generate mosaic blastocysts, but alternatively normal embryos may form from selective death or clonal depletion of aneuploid cells. WIDER IMPLICATIONS Deviations from developmental dogmas and the increasing evidence of plasticity of the human embryo challenge current embryological notions and suggest the need to write new rules governing cell cycle, cell determination and chromosome segregation during preimplantation development.
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Affiliation(s)
| | | | | | | | - Simon Fishel
- CARE Fertility Group, Northampton, UK.,School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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9
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McCoy RC, Newnham LJ, Ottolini CS, Hoffmann ER, Chatzimeletiou K, Cornejo OE, Zhan Q, Zaninovic N, Rosenwaks Z, Petrov DA, Demko ZP, Sigurjonsson S, Handyside AH. Tripolar chromosome segregation drives the association between maternal genotype at variants spanning PLK4 and aneuploidy in human preimplantation embryos. Hum Mol Genet 2019; 27:2573-2585. [PMID: 29688390 DOI: 10.1093/hmg/ddy147] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/18/2018] [Indexed: 12/22/2022] Open
Abstract
Aneuploidy is prevalent in human embryos and is the leading cause of pregnancy loss. Many aneuploidies arise during oogenesis, increasing with maternal age. Superimposed on these meiotic aneuploidies are frequent errors occurring during early mitotic divisions, contributing to widespread chromosomal mosaicism. Here we reanalyzed a published dataset comprising preimplantation genetic testing for aneuploidy in 24 653 blastomere biopsies from day-3 cleavage-stage embryos, as well as 17 051 trophectoderm biopsies from day-5 blastocysts. We focused on complex abnormalities that affected multiple chromosomes simultaneously, seeking insights into their formation. In addition to well-described patterns such as triploidy and haploidy, we identified 4.7% of blastomeres possessing characteristic hypodiploid karyotypes. We inferred this signature to have arisen from tripolar chromosome segregation in normally fertilized diploid zygotes or their descendant diploid cells. This could occur via segregation on a tripolar mitotic spindle or by rapid sequential bipolar mitoses without an intervening S-phase. Both models are consistent with time-lapse data from an intersecting set of 77 cleavage-stage embryos, which were enriched for the tripolar signature among embryos exhibiting abnormal cleavage. The tripolar signature was strongly associated with common maternal genetic variants spanning the centrosomal regulator PLK4, driving the association we previously reported with overall mitotic errors. Our findings are consistent with the known capacity of PLK4 to induce tripolar mitosis or precocious M-phase upon dysregulation. Together, our data support tripolar chromosome segregation as a key mechanism generating complex aneuploidy in cleavage-stage embryos and implicate maternal genotype at a quantitative trait locus spanning PLK4 as a factor influencing its occurrence.
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Affiliation(s)
- Rajiv C McCoy
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.,Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Louise J Newnham
- Genome Damage and Stability Centre, University of Sussex, Brighton, UK
| | | | - Eva R Hoffmann
- Genome Damage and Stability Centre, University of Sussex, Brighton, UK.,Department of Cellular and Molecular Medicine, DNRF Center for Chromosome Stability, University of Copenhagen, Copenhagen N, Denmark
| | - Katerina Chatzimeletiou
- Section of Reproductive Medicine, First Department of Obstetrics & Gynaecology, Aristotle University Medical School, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Omar E Cornejo
- School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Qiansheng Zhan
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Nikica Zaninovic
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Zev Rosenwaks
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Dmitri A Petrov
- Department of Biology, Stanford University, Stanford, CA, USA
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10
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Carson JC, Hoffner L, Conlin L, Parks WT, Fisher RA, Spinner N, Yatsenko SA, Bonadio J, Surti U. Diploid/triploid mixoploidy: A consequence of asymmetric zygotic segregation of parental genomes. Am J Med Genet A 2018; 176:2720-2732. [PMID: 30302900 DOI: 10.1002/ajmg.a.40646] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/14/2018] [Accepted: 09/04/2018] [Indexed: 01/16/2023]
Abstract
Triploidy is the presence of an extra haploid set of chromosomes and can exist in complete or mosaic form. The extra haploid set of chromosomes in triploid cells can be of maternal or paternal origin. Diploid/triploid mixoploidy is a unique form of triploid mosaicism that requires the aberrant segregation of entire parental genomes into distinct blastomere lineages (heterogoneic cell division) at the earliest zygotic divisions. Here we report on eight cases of diploid/triploid mixoploidy from our institution and conduct a comprehensive review of the literature. The parental origin of the extra set of chromosomes was determined in two cases; and, based on phenotypic evidence we propose the parental origin in the other cases. One case with complex mixoploidy appears to have a digynic origin in addition to the involvement of two different sperm. Of our eight cases, only one resulted in the birth of a live healthy child. The other pregnancies ended in miscarriage, elective termination of pregnancy, intrauterine fetal demise or neonatal death. A review of the literature and the results of our cases show that a preponderance of recognized cases of diploid/triploid mixoploidy has a digynic origin.
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Affiliation(s)
- Jason C Carson
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Lori Hoffner
- Magee-Womens Research Institute and Foundation, Pittsburgh, Pennsylvania
| | - Laura Conlin
- Department of Pathology, Children's Hospital of Philadelphia, The University of Pennsylvania, Philadelphia, Pennsylvania.,The Perelman School of Medicine, The University of Pennsylvania, Philadelphia, Pennsylvania
| | - W Tony Parks
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Rosemary A Fisher
- Trophoblastic Tumour Screening and Treatment Centre, Imperial College London, Charing Cross Hospital, London, United Kingdom
| | - Nancy Spinner
- Department of Pathology, Children's Hospital of Philadelphia, The University of Pennsylvania, Philadelphia, Pennsylvania.,The Perelman School of Medicine, The University of Pennsylvania, Philadelphia, Pennsylvania
| | - Svetlana A Yatsenko
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Magee-Womens Research Institute and Foundation, Pittsburgh, Pennsylvania.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Jeffrey Bonadio
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Urvashi Surti
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Magee-Womens Research Institute and Foundation, Pittsburgh, Pennsylvania.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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11
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Marin D, Zimmerman R, Tao X, Zhan Y, Scott RT, Treff NR. Validation of a targeted next generation sequencing-based comprehensive chromosome screening platform for detection of triploidy in human blastocysts. Reprod Biomed Online 2018; 36:388-395. [DOI: 10.1016/j.rbmo.2017.12.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 11/27/2022]
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12
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Cassuto NG. [Is it useful to observe the embryo in the early stages of development when prolonged cultivation is carried out? No]. GYNECOLOGIE, OBSTETRIQUE & FERTILITE 2016; 44:444-445. [PMID: 27451067 DOI: 10.1016/j.gyobfe.2016.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 06/06/2023]
Affiliation(s)
- N G Cassuto
- Unité AMP Drouot, 21, rue Drouot, 75009 Paris, France.
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Gu YF, OuYang Q, Dai C, Lu CF, Lin G, Gong F, Lu GX. Abnormalities in centrosome number in human embryos and embryonic stem cells. Mol Reprod Dev 2016; 83:392-404. [PMID: 26946049 DOI: 10.1002/mrd.22633] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 02/26/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Yi-Fan Gu
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
| | - Qi OuYang
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
| | - Can Dai
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
| | - Chang-Fu Lu
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
| | - Ge Lin
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
| | - Fei Gong
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
| | - Guang-Xiu Lu
- Institute of Reproductive and Stem Cell Engineering; School of Basic Medical Science; Central South University; Changsha China
- Reproductive and Genetic Hospital of CITIC-XIANGYA; Changsha China
- National Engineering and Research Center of Human Stem Cell; Changsha China
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14
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Grau N, Escrich L, Galiana Y, Meseguer M, García-Herrero S, Remohí J, Escribá MJ. Morphokinetics as a predictor of self-correction to diploidy in tripronucleated intracytoplasmic sperm injection–derived human embryos. Fertil Steril 2015; 104:728-35. [DOI: 10.1016/j.fertnstert.2015.05.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/19/2015] [Accepted: 05/19/2015] [Indexed: 11/29/2022]
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15
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Joergensen MW, Labouriau R, Hindkjaer J, Stougaard M, Kolevraa S, Bolund L, Agerholm IE, Sunde L. The parental origin correlates with the karyotype of human embryos developing from tripronuclear zygotes. Clin Exp Reprod Med 2015; 42:14-21. [PMID: 25874169 PMCID: PMC4390676 DOI: 10.5653/cerm.2015.42.1.14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 12/29/2014] [Accepted: 01/19/2015] [Indexed: 11/12/2022] Open
Abstract
Objective It has previously been suggested that embryos developing from intracytoplasmic sperm-injected (ICSI) zygotes with three pronuclei (3PN) are endowed with a mechanism for self-correction of triploidy to diploidy. 3PN are also observed in zygotes after conventional in vitro fertilization (IVF). The parental origin, however, differs between the two fertilization methods. Whereas the vast majority of 3PN IVF zygotes are of dispermic origin and thus more likely to have two centrioles, the 3PN ICSI zygotes are digynic in origin and therefore, more likely to have one centriole. In the present study, we examine whether the parental origin of 3PN embryos correlates with the karyotype. Methods The karyotype of each nucleus was estimated using four sequential fluorescence in situ hybridizations-each with two probes-resulting in quantitative information of 8 different chromosomes. The karyotypes were then compared and correlated to the parental origin. Results 3PN ICSI embryos displayed a significantly larger and more coordinated reduction from the assumed initial 3 sets of chromosomes than 3PN IVF embryos. Conclusion The differences in the parental origin-and hence the number of centrioles-between the 3PN IVF and the 3PN ICSI zygotes are likely to be the cause of the differences in karyotypes.
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Affiliation(s)
- Mette Warming Joergensen
- Department of Clinical Genetics, Vejle Hospital, Vejle, Denmark. ; Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Johnny Hindkjaer
- The Fertility Clinic and Centre for Preimplantation Genetic diagnosis, Aarhus University Hospital, Skejby, Denmark
| | - Magnus Stougaard
- Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - Steen Kolevraa
- Department of Clinical Genetics, Vejle Hospital, Vejle, Denmark
| | - Lars Bolund
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Lone Sunde
- Department of Biomedicine, Aarhus University, Aarhus, Denmark. ; Department of Clinical Genetics, Aarhus University Hospital, Skejby, Denmark
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16
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Jin HX, Dai SJ, Song WY, Yao GD, Shi SL, Sun YP. Embryo developmental potential of microsurgically corrected human three-pronuclear zygotes. Syst Biol Reprod Med 2014; 61:96-102. [PMID: 25411094 DOI: 10.3109/19396368.2014.986693] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We explored the embryo development potential of human three-pronuclear (3PN) zygotes reduced to two-pronuclear (2PN) zygotes (3 → 2PN zygotes) by micropuncture. In this study, there were three groups, the 3 → 2PN group (338 zygotes), the non-corrected 3PN group (381 zygotes), and the normal 2PN group (359 zygotes). The first cleavage mode (2-cell cleavage or 3-cell cleavage), 6-8 cell embryogenesis rate, high-quality embryogenesis rate and Day 5/Day 6 blastulation rate were compared between the three groups. The success rate of enucleation was 92.9%. The 2-cell cleavage rate was significantly higher in the 3 → 2PN group (74.3%) than in the 3PN group (36.4%) (P < 0.05), but had no statistical difference compared with the 2PN group (86.0%) (P > 0.05). The 6-8 cell embryogenesis rate was significantly higher in the 3 → 2PN group (91.1%) as compared to the 2PN group (85.6%) (P < 0.05), but had no statistical difference compared with the 3PN group (95.0%) (P > 0.05). Total blastulation rate was significantly higher in the 2PN group (58.8%) as compared to the 3PN group (21.5%) (P < 0.01), and in the 3 → 2PN group as compared to the 3PN group (5.6%) (P < 0.01). Also D5 blastulation rate was significantly higher in the 2PN group (53.7%) as compared to the 3 → 2PN group (8.9%) (P < 0.01), and in the 3 → 2PN group as compared to the 3PN group (1.9%) (P < 0.01). In 3 → 2PN zygotes, the first cleavage mode is mainly 2 cells which is significantly higher than that in 3PN zygotes. Compared with 3PN zygotes, the embryo developmental potential of 3 → 2PN zygotes is improved, but still is lower than that in 2PN zygotes.
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Affiliation(s)
- Hai-xia Jin
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University , Zhengzhou , China
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Lammers J, Splingart C, Barrière P, Fréour T. Morphokinetic parameters of ICSI tripronucleated embryos observed using time lapse. Reprod Biomed Online 2014; 28:658-60. [DOI: 10.1016/j.rbmo.2014.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 01/23/2014] [Accepted: 01/23/2014] [Indexed: 10/25/2022]
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18
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Xia P. Biology of Polyspermy in IVF and its Clinical Indication. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2013. [DOI: 10.1007/s13669-013-0059-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mantikou E, van Echten-Arends J, Sikkema-Raddatz B, van der Veen F, Repping S, Mastenbroek S. Temporal and developmental-stage variation in the occurrence of mitotic errors in tripronuclear human preimplantation embryos. Biol Reprod 2013; 89:42. [PMID: 23863408 DOI: 10.1095/biolreprod.113.107946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Mitotic errors during early development of human preimplantation embryos are common, rendering a large proportion of embryos chromosomally mosaic. It is also known that the percentage of diploid cells in human diploid-aneuploid mosaic embryos is higher at the blastocyst than at the cleavage stage. In this study, we examined whether there is temporal and/or developmental-stage variation in the occurrence of mitotic errors in human preimplantation embryos from the first day of development onward using mitotically stable digynic tripronuclear human embryos as a model system. All the cells of the 114 digynic tripronuclear human preimplantation embryos included were analyzed by fluorescence in situ hybridization for chromosomes 1, 13, 16, 17, 18, 21, X, and Y. Embryos were grouped according to day of development (1-6) and developmental stage (2-cell to blastocyst stage). The possibility of a mitotic error was highest in the first and second mitotic divisions. The percentage of cells with mitotic errors increased during preimplantation development and was highest at the 9-16 cell stage (76%, P = 0.027). Thereafter, the percentage of cells with mitotic errors decreased to 64% at the morula and 56% at the blastocyst stage. The pattern found correlates with the activation of the embryonic genome at the 8-16 cell stage. A better insight in the timing of occurrence of mitotic errors in human preimplantation embryos could help in understanding and prevention of these errors and is relevant in the context of PGS.
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Affiliation(s)
- Eleni Mantikou
- Center for Reproductive Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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The potential significance of binovular follicles and binucleate giant oocytes for the development of genetic abnormalities. J Genet 2012; 91:397-404. [DOI: 10.1007/s12041-012-0195-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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