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Skinner MW, Simington CJ, López-Jiménez P, Baran KA, Xu J, Dayani Y, Pryzhkova MV, Page J, Gómez R, Holland AJ, Jordan PW. Spermatocytes have the capacity to segregate chromosomes despite centriole duplication failure. EMBO Rep 2024; 25:3373-3405. [PMID: 38943004 PMCID: PMC11316026 DOI: 10.1038/s44319-024-00187-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/30/2024] Open
Abstract
Centrosomes are the canonical microtubule organizing centers (MTOCs) of most mammalian cells, including spermatocytes. Centrosomes comprise a centriole pair within a structurally ordered and dynamic pericentriolar matrix (PCM). Unlike in mitosis, where centrioles duplicate once per cycle, centrioles undergo two rounds of duplication during spermatogenesis. The first duplication is during early meiotic prophase I, and the second is during interkinesis. Using mouse mutants and chemical inhibition, we have blocked centriole duplication during spermatogenesis and determined that non-centrosomal MTOCs (ncMTOCs) can mediate chromosome segregation. This mechanism is different from the acentriolar MTOCs that form bipolar spindles in oocytes, which require PCM components, including gamma-tubulin and CEP192. From an in-depth analysis, we identified six microtubule-associated proteins, TPX2, KIF11, NuMA, and CAMSAP1-3, that localized to the non-centrosomal MTOC. These factors contribute to a mechanism that ensures bipolar MTOC formation and chromosome segregation during spermatogenesis when centriole duplication fails. However, despite the successful completion of meiosis and round spermatid formation, centriole inheritance and PLK4 function are required for normal spermiogenesis and flagella assembly, which are critical to ensure fertility.
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Affiliation(s)
- Marnie W Skinner
- Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Biochemistry and Molecular Biology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Carter J Simington
- Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Pablo López-Jiménez
- Department of Biology, Autonomous University of Madrid, Madrid, Spain
- MRC Laboratory of Medical Sciences, London, W12 0NN, UK
| | - Kerstin A Baran
- Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jingwen Xu
- Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Yaron Dayani
- Department of Biochemistry and Molecular Biology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Marina V Pryzhkova
- Department of Biochemistry and Molecular Biology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Jesús Page
- Department of Biology, Autonomous University of Madrid, Madrid, Spain
| | - Rocío Gómez
- Department of Biology, Autonomous University of Madrid, Madrid, Spain
| | - Andrew J Holland
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Philip W Jordan
- Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
- Department of Biochemistry and Molecular Biology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
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2
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Cao C, Bai S, Zhang J, Sun X, Meng A, Chen H. Understanding recurrent pregnancy loss: recent advances on its etiology, clinical diagnosis, and management. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:570-589. [PMID: 37724255 PMCID: PMC10471095 DOI: 10.1515/mr-2022-0030] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/14/2022] [Indexed: 09/20/2023]
Abstract
Recurrent pregnancy loss (RPL) has become an important reproductive health issue worldwide. RPL affects about 2%-3% of reproductive-aged women, and makes serious threats to women's physical and mental health. However, the etiology of approximately 50% of RPL cases remains unknown (unexplained RPL), which poses a big challenge for clinical management of these patients. RPL has been widely regarded as a complex disease where its etiology has been attributed to numerous factors. Heretofore, various risk factors for RPL have been identified, such as maternal ages, genetic factors, anatomical structural abnormalities, endocrine dysfunction, prethrombotic state, immunological factors, and infection. More importantly, development and applications of next generation sequencing technology have significantly expanded opportunities to discover chromosomal aberrations and single gene variants responsible for RPL, which provides new insight into its pathogenic mechanisms. Furthermore, based upon patients' diagnostic evaluation and etiologic diagnosis, specific therapeutic recommendations have been established. This review will highlight current understanding and recent advances on RPL, with a special focus on the immunological and genetic etiologies, clinical diagnosis and therapeutic management.
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Affiliation(s)
- Chunwei Cao
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Province, China
- Guangzhou laboratory, Guangzhou, Guangdong Province, China
- Center for Reproductive Genetics and Reproductive Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Shiyu Bai
- Reproductive Medicine Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jing Zhang
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Province, China
- Center for Reproductive Genetics and Reproductive Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Xiaoyue Sun
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Province, China
- Center for Reproductive Genetics and Reproductive Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Anming Meng
- Guangzhou laboratory, Guangzhou, Guangdong Province, China
| | - Hui Chen
- Reproductive Medicine Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
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3
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Transmission ratio distortion of mutations in the master regulator of centriole biogenesis PLK4. Hum Genet 2022; 141:1785-1794. [PMID: 35536377 PMCID: PMC9556372 DOI: 10.1007/s00439-022-02461-w] [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: 02/11/2022] [Accepted: 04/26/2022] [Indexed: 11/04/2022]
Abstract
The evolutionary conserved Polo-like kinase 4 (PLK4) is essential for centriole duplication, spindle assembly, and de novo centriole formation. In man, homozygous mutations in PLK4 lead to primary microcephaly, altered PLK4 expression is associated with aneuploidy in human embryos. Here, we report on a consanguineous four-generation family with 8 affected individuals compound heterozygous for a novel missense variant, c.881 T > G, and a deletion of the PLK4 gene. The clinical phenotype of the adult patients is mild compared to individuals with previously described PLK4 mutations. One individual was homozygous for the variant c.881G and phenotypically unaffected. The deletion was inherited by 14 of 16 offspring and thus exhibits transmission ratio distortion (TRD). Moreover, based on the already published families with PLK4 mutations, it could be shown that due to the preferential transmission of the mutant alleles, the number of affected offspring is significantly increased. It is assumed that reduced expression of PLK4 decreases the intrinsically high error rate of the first cell divisions after fertilization, increases the number of viable embryos and thus leads to preferential transmission of the deleted/mutated alleles.
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Blyth U, Craciunas L, Hudson G, Choudhary M. Maternal germline factors associated with aneuploid pregnancy loss: a systematic review. Hum Reprod Update 2021; 27:866-884. [PMID: 33969392 DOI: 10.1093/humupd/dmab010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Miscarriage describes the spontaneous loss of pregnancy before the threshold of viability; the vast majority occur before 12 weeks of gestation. Miscarriage affects one in four couples and is the most common complication of pregnancy. Chromosomal abnormalities of the embryo are identified in ∼50% of first trimester miscarriages; aneuploidy accounts for 86% of these cases. The majority of trisomic miscarriages are of maternal origin with errors occurring during meiotic division of the oocytes. Chromosome segregation errors in oocytes may be sporadic events secondary to advancing maternal age; however, there is increasing evidence to suggest possible maternal germline contributions to this. OBJECTIVE AND RATIONALE The objective of this review was to appraise critically the existing evidence relating to maternal germline factors associated with pregnancy loss secondary to embryo aneuploidy, identify limitations in the current evidence base and establish areas requiring further research. SEARCH METHODS The initial literature search was performed in September 2019 and updated in January 2021 using the electronic databases OVID MEDLINE, EMBASE and the Cochrane Library. No time or language restrictions were applied to the searches and only primary research was included. Participants were women who had suffered pregnancy loss secondary to numerical chromosomal abnormalities of the embryo. Study identification and subsequent data extraction were performed by two authors independently. The Newcastle-Ottawa Scale was used to judge the quality of the included studies. The results were synthesized narratively. OUTCOMES The literature search identified 2198 titles once duplicates were removed, of which 21 were eligible for inclusion in this systematic review. They reported on maternal germline factors having variable degrees of association with pregnancy loss of aneuploid origin. The Online Mendelian Inheritance in Man (OMIM) gene ontology database was used as a reference to establish the functional role currently attributed to the genes reported. The majority of the cases reported and included were secondary to the inheritance of maternal structural factors such as Robertsonian translocations, deletions and insertions. Germline factors with a plausible role in aneuploid pregnancy loss of maternal origin included skewed X-inactivation and CGG repeats in the fragile X mental retardation (FMR1) gene. Studies that reported the association of single gene mutations with aneuploid pregnancy loss were conflicting. Single gene mutations with an uncertain or no role in aneuploid pregnancy loss included mutations in synaptonemal complex protein 3 (SYCP3), mitotic polo-like kinase 4 (PLK4) and meiotic stromal antigen 3 (STAG3) spindle integrity variants and 5,10-methylenetetrahydrofolate reductase (MTHFR). WIDER IMPLICATIONS Identifying maternal genetic factors associated with an increased risk of aneuploidy will expand our understanding of cell division, non-disjunction and miscarriage secondary to embryo aneuploidy. The candidate germline factors identified may be incorporated in a screening panel for women suffering miscarriage of aneuploidy aetiology to facilitate counselling for subsequent pregnancies.
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Affiliation(s)
- Ursula Blyth
- Newcastle Fertility Centre at Life, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Laurentiu Craciunas
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Gavin Hudson
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Meenakshi Choudhary
- Newcastle Fertility Centre at Life, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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5
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Tyc KM, El Yakoubi W, Bag A, Landis J, Zhan Y, Treff NR, Scott RT, Tao X, Schindler K, Xing J. Exome sequencing links CEP120 mutation to maternally derived aneuploid conception risk. Hum Reprod 2021; 35:2134-2148. [PMID: 32772081 DOI: 10.1093/humrep/deaa148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/14/2020] [Indexed: 12/22/2022] Open
Abstract
STUDY QUESTION What are the genetic factors that increase the risk of aneuploid egg production? SUMMARY ANSWER A non-synonymous variant rs2303720 within centrosomal protein 120 (CEP120) disrupts female meiosis in vitro in mouse. WHAT IS KNOWN ALREADY The production of aneuploid eggs, with an advanced maternal age as an established contributing factor, is the major cause of IVF failure, early miscarriage and developmental anomalies. The identity of maternal genetic variants contributing to egg aneuploidy irrespective of age is missing. STUDY DESIGN, SIZE, DURATION Patients undergoing fertility treatment (n = 166) were deidentified and selected for whole-exome sequencing. PARTICIPANTS/MATERIALS, SETTING, METHODS Patients self-identified their ethnic groups and their ages ranged from 22 to 49 years old. The study was performed using genomes from White, non-Hispanic patients divided into controls (97) and cases (69) according to the number of aneuploid blastocysts derived during each IVF procedure. Following a gene prioritization strategy, a mouse oocyte system was used to validate the functional significance of the discovered associated genetic variants. MAIN RESULTS AND THE ROLE OF CHANCE Patients producing a high proportion of aneuploid blastocysts (considered aneuploid if they missed any of the 40 chromatids or had extra copies) were found to carry a higher mutational burden in genes functioning in cytoskeleton and microtubule pathways. Validation of the functional significance of a non-synonymous variant rs2303720 within Cep120 on mouse oocyte meiotic maturation revealed that ectopic expression of CEP120:p.Arg947His caused decreased spindle microtubule nucleation efficiency and increased incidence of aneuploidy. LIMITATIONS, REASONS FOR CAUTION Functional validation was performed using the mouse oocyte system. Because spindle building pathways differ between mouse and human oocytes, the defects we observed upon ectopic expression of the Cep120 variant may alter mouse oocyte meiosis differently than human oocyte meiosis. Further studies using knock-in 'humanized' mouse models and in human oocytes will be needed to translate our findings to human system. Possible functional differences of the variant between ethnic groups also need to be investigated. WIDER IMPLICATIONS OF THE FINDINGS Variants in centrosomal genes appear to be important contributors to the risk of maternal aneuploidy. Functional validation of these variants will eventually allow prescreening to select patients that have better chances to benefit from preimplantation genetic testing. STUDY FUNDING/COMPETING INTEREST(S) This study was funded through R01-HD091331 to K.S. and J.X. and EMD Serono Grant for Fertility Innovation to N.R.T. N.R.T. is a shareholder and an employee of Genomic Prediction. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Katarzyna M Tyc
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.,Human Genetics Institute of New Jersey, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Warif El Yakoubi
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.,Human Genetics Institute of New Jersey, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Aishee Bag
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Jessica Landis
- Foundation for Embryonic Competence, Basking Ridge, NJ 07920, USA
| | - Yiping Zhan
- Foundation for Embryonic Competence, Basking Ridge, NJ 07920, USA
| | - Nathan R Treff
- Reproductive Medicine Associates of New Jersey, Basking Ridge, NJ 07920, USA
| | - Richard T Scott
- Reproductive Medicine Associates of New Jersey, Basking Ridge, NJ 07920, USA
| | - Xin Tao
- Foundation for Embryonic Competence, Basking Ridge, NJ 07920, USA
| | - Karen Schindler
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.,Human Genetics Institute of New Jersey, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Jinchuan Xing
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.,Human Genetics Institute of New Jersey, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
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6
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Wartosch L, Schindler K, Schuh M, Gruhn JR, Hoffmann ER, McCoy RC, Xing J. Origins and mechanisms leading to aneuploidy in human eggs. Prenat Diagn 2021; 41:620-630. [PMID: 33860956 PMCID: PMC8237340 DOI: 10.1002/pd.5927] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/02/2021] [Accepted: 02/21/2021] [Indexed: 11/18/2022]
Abstract
The gain or loss of a chromosome-or aneuploidy-acts as one of the major triggers for infertility and pregnancy loss in humans. These chromosomal abnormalities affect more than 40% of eggs in women at both ends of the age spectrum, that is, young girls as well as women of advancing maternal age. Recent studies in human oocytes and embryos using genomics, cytogenetics, and in silico modeling all provide new insight into the rates and potential genetic and cellular factors associated with aneuploidy at varying stages of development. Here, we review recent studies that are shedding light on potential molecular mechanisms of chromosome missegregation in oocytes and embryos across the entire female reproductive life span.
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Affiliation(s)
- Lena Wartosch
- Department of MeiosisMax Planck Institute for Biophysical ChemistryGöttingenGermany
| | - Karen Schindler
- Department of GeneticsRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
- Human Genetics Institute of New JerseyRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
| | - Melina Schuh
- Department of MeiosisMax Planck Institute for Biophysical ChemistryGöttingenGermany
| | - Jennifer R. Gruhn
- DNRF Center for Chromosome StabilityDepartment of Cellular and Molecular MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenDenmark
| | - Eva R. Hoffmann
- DNRF Center for Chromosome StabilityDepartment of Cellular and Molecular MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenDenmark
| | - Rajiv C. McCoy
- Department of BiologyJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Jinchuan Xing
- Department of GeneticsRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
- Human Genetics Institute of New JerseyRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
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7
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Zhang X, Wei C, Liang H, Han L. Polo-Like Kinase 4's Critical Role in Cancer Development and Strategies for Plk4-Targeted Therapy. Front Oncol 2021; 11:587554. [PMID: 33777739 PMCID: PMC7994899 DOI: 10.3389/fonc.2021.587554] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 01/22/2021] [Indexed: 12/12/2022] Open
Abstract
Polo-like kinases (Plks) are critical regulatory molecules during the cell cycle process. This family has five members: Plk1, 2, 3, 4, and 5. Plk4 has been identified as a master regulator of centriole replication, and its aberrant expression is closely associated with cancer development. In this review, we depict the DNA, mRNA, and protein structure of Plk4, and the regulation of Plk4 at a molecular level. Then we list the downstream targets of Plk4 and the hallmarks of cancer associated with these targets. The role of Plk4 in different cancers is also summarized. Finally, we review the inhibitors that target Plk4 in the hope of discovering effective anticancer drugs. From authors' perspective, Plk4 might represent a valuable tumor biomarker and critical target for cancer diagnosis and therapy.
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Affiliation(s)
| | | | | | - Lei Han
- Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin Medical University General Hospital, Tianjin, China
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8
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Zhang Q, Ni T, Dang Y, Ding L, Jiang J, Li J, Xia M, Yu N, Ma J, Yan J, Chen ZJ. MiR-148a-3p may contribute to flawed decidualization in recurrent implantation failure by modulating HOXC8. J Assist Reprod Genet 2020; 37:2535-2544. [PMID: 32772270 DOI: 10.1007/s10815-020-01900-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022] Open
Abstract
PURPOSE To evaluate whether miR-148a-3p overexpression is associated with disrupted decidualization of recurrent implantation failure (RIF). METHODS Endometrial miRNA and mRNA expression profiles during the implantation window derived from women with and without RIF were identified using microarray and RT-qPCR. Immortalized human endometrial stromal cells (HESCs) were cultured for proliferation and in vitro decidualization assays after enhancing miR-148a-3p expression or inhibiting putative target gene homeobox C8 (HOXC8) expression. RT-qPCR, western blot, and luciferase reporter assays were used to confirm the relationship between miR-148a-3p and HOXC8 gene. RESULTS MiR-148a-3p was significantly upregulated in RIF endometrial tissues. Forced expression of miR-148a-3p notably attenuated HESC in vitro decidualization. Mechanistic studies revealed that miR-148a-3p directly bounds to the HOXC8 3' untranslated region (3'UTR) and suppressed HOXC8 expressions in both mRNA and protein levels. Further investigations demonstrated that inhibition of HOXC8 in HESCs induced similar effects on decidual process as those induced by miR-148a-3p overexpression. CONCLUSION Taken together, our findings suggested that elevated miR-148a-3p might account for flawed decidualization in RIF by negatively regulating HOXC8, raising the possibility that miR-148a-3p might be a novel therapeutic target in RIF.
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Affiliation(s)
- Qian Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Tianxiang Ni
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Yujie Dang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Lingling Ding
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Jingjing Jiang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Jing Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Mingdi Xia
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Na Yu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Jinlong Ma
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China
| | - Junhao Yan
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China. .,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China. .,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, No. 157 Jingliu Road, Jinan, 250012, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, Shandong, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetic, Shanghai, 200127, China.,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
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9
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Zhang L, Wei D, Zhu Y, Jiang W, Xia M, Li J, Yan J, Chen ZJ. Interaction of acrocentric chromosome involved in translocation and sex of the carrier influences the proportion of alternate segregation in autosomal reciprocal translocations. Hum Reprod 2020; 34:380-387. [PMID: 30576528 DOI: 10.1093/humrep/dey367] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/12/2018] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Are meiotic segregation patterns of reciprocal translocations affected by the combined effect of chromosome type and carrier's sex? SUMMARY ANSWER Interaction of an acrocentric chromosome (Acr-ch) involved in the translocation and sex of the carrier influences the proportion of alternate segregation for normal or balanced chromosome contents during meiotic segregation in autosomal reciprocal translocations. WHAT IS KNOWN ALREADY Carriers of reciprocal translocations are at a significantly increased risk of fertility problems due to the generation of unbalanced gametes in meiotic segregation of a quadrivalent. Previous studies have reported that meiotic segregation patterns of a quadrivalent can be affected by factors such as a carrier's sex and age and the chromosome type. However, the reported proportion of alternate segregation does not differ significantly, except in one study, and whether combined effects between these factors exist is unclear. STUDY DESIGN, SIZE, DURATION A retrospective study of array comparative genomic hybridization (aCGH) outcome data from patients with autosomal reciprocal translocations was conducted to analyse meiotic segregation patterns and blastocyst euploidy rates. We enroled 473 couples whose embryos were tested between January 2013 and September 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS Meiotic segregation patterns of 2101 blastocysts from 243 female carriers, including 76 cases with translocations involving Acr-ch, and 230 male carriers, including 88 cases with translocations involving Acr-ch, were analysed according to chromosome type, carrier's sex and age. MAIN RESULTS AND THE ROLE OF CHANCE In cases with translocations involving the Acr-ch subgroup, the proportion of alternate segregation (53.9 vs 33.4%, P < 0.0001) was significantly higher in male carriers than in female carriers, with the proportion of 3:1 segregation (6.8 vs 16.3%, P < 0.0001) being significantly lower. The proportions of alternate segregation were similar between sexes in cases with translocations not involving the Acr-ch subgroup. Meanwhile, in the female carrier subgroup, the proportion of alternate segregation (33.4 vs 45.2%, P < 0.001) was significantly lower and the proportion of 3:1 segregation (16.3 vs 8.2%, P < 0.001) was significantly higher in cases with translocations involving Acr-ch than in those not. In the male carrier subgroup, the proportion of alternate segregation (53.9 vs 46.9%, P = 0.031) was higher and the proportion of adjacent-1 segregation (27.1 vs 37.3%, P < 0.001) was significantly lower in cases with translocations involving Acr-ch than in those not. Carrier's age did not affect the meiotic segregation patterns. However the euploidy rates were significantly lower in couples with advanced compared to young maternal age respectively. LIMITATIONS, REASONS FOR CAUTION Mosaic embryos were not identified using aCGH in this study. Patients with complex chromosome rearrangements and translocations involving sex chromosomes were excluded. Interchromosomal effect was not analysed. WIDER IMPLICATIONS OF THE FINDINGS The findings of this study provide detailed information for genetic counselling of couples with autosomal reciprocal translocations on their chances of producing euploid gametes. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by the National Key Research and Development Program of China (2016YFC1000202); the National Natural Science Foundation of China (81671522); the Natural Science Foundation of Shandong Province in China (ZR2016HP09); and the Innovative Foundation of Reproductive Hospital Affiliated to Shandong University (20171114, 20171111). No competing interests are declared. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Lei Zhang
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Daimin Wei
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Yueting Zhu
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Wenjie Jiang
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Mingdi Xia
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Jing Li
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Junhao Yan
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, 157 Jingliu Road, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, 157 Jingliu Road, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, 157 Jingliu Road, Jinan, China
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, 845 Lingshan Road, Shanghai, China
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10
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Yoshihara H, Sugiura-Ogasawara M, Ozawa F, Kitaori T, Ozaki Y, Aoki K, Shibata Y, Ugawa S, Nishiyama T, Omae Y, Tokunaga K. Polo-like kinase 4 and Stromal antigen 3 are not associated with recurrent pregnancy loss caused by embryonic aneuploidy. Hum Genome Var 2020; 7:18. [PMID: 32528715 PMCID: PMC7260232 DOI: 10.1038/s41439-020-0106-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/07/2020] [Accepted: 04/14/2020] [Indexed: 11/08/2022] Open
Abstract
No genetic association with recurrent pregnancy loss (RPL) caused by embryonic aneuploidy has been found. Recent studies have indicated that the common genetic variant rs2305957, surrounding the PLK4 gene, contributes to mitotic-origin aneuploidy risk during human early embryo development. The decrease in meiosis-specific cohesin causes predivision of sister chromatids in the centromere and chromosome segregation errors. STAG3 is a component of cohesin and is a meiosis-specific gene. Our case-control study included 184 patients with RPL whose previous products of conception (POC) exhibited aneuploidy and 190 fertile control women without a history of miscarriage. We performed a genetic association study to examine the genotype distribution at PLK4 (rs2305957) and STAG3 in patients with RPL caused by aneuploidy compared with controls. Regarding STAG3, SNPs with a minor allele frequency (MAF) threshold > 0.05 that were predicted to be binding sites of transcription factors and that showed significant associations in expression quantitative trait locus (e-QTL) analysis were selected. No significant differences in the MAF or distribution in any model of PLK4 (rs2305957) and 5 selected tag SNPs in STAG3 were found between the patients and controls. A further genome-wide association study is needed since a combination of genetic risk alleles might be useful in predicting future age-dependent RPL caused by aneuploidy.
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Affiliation(s)
- Hiroyuki Yoshihara
- Department of Obstetrics and Gynecology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Mayumi Sugiura-Ogasawara
- Department of Obstetrics and Gynecology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Fumiko Ozawa
- Department of Obstetrics and Gynecology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Tamao Kitaori
- Department of Obstetrics and Gynecology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasuhiko Ozaki
- Department of Obstetrics and Gynecology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Koji Aoki
- Aoki Ladies Clinic, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasuhiro Shibata
- Anatomy and Neuroscience, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Shinya Ugawa
- Anatomy and Neuroscience, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Takeshi Nishiyama
- Public Health, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
| | - Yosuke Omae
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Katsushi Tokunaga
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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11
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Amargant F, Barragan M, Vassena R, Vernos I. Insights of the tubulin code in gametes and embryos: from basic research to potential clinical applications in humans†. Biol Reprod 2020; 100:575-589. [PMID: 30247519 DOI: 10.1093/biolre/ioy203] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/05/2018] [Accepted: 09/20/2018] [Indexed: 12/14/2022] Open
Abstract
Microtubules are intracellular filaments that define in space and in time a large number of essential cellular functions such as cell division, morphology and motility, intracellular transport and flagella and cilia assembly. They are therefore essential for spermatozoon and oocyte maturation and function, and for embryo development. The dynamic and functional properties of the microtubules are in large part defined by various classes of interacting proteins including MAPs (microtubule associated proteins), microtubule-dependent motors, and severing and modifying enzymes. Multiple mechanisms regulate these interactions. One of them is defined by the high diversity of the microtubules themselves generated by the combination of different tubulin isotypes and by several tubulin post-translational modifications (PTMs). This generates a so-called tubulin code that finely regulates the specific set of proteins that associates with a given microtubule thereby defining the properties and functions of the network. Here we provide an in depth review of the current knowledge on the tubulin isotypes and PTMs in spermatozoa, oocytes, and preimplantation embryos in various model systems and in the human species. We focus on functional implications of the tubulin code for cytoskeletal function, particularly in the field of human reproduction and development, with special emphasis on gamete quality and infertility. Finally, we discuss some of the knowledge gaps and propose future research directions.
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Affiliation(s)
- Farners Amargant
- Clínica EUGIN, Barcelona, Spain.,Cell and Developmental Biology Programme, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Barcelona, Spain
| | | | | | - Isabelle Vernos
- Cell and Developmental Biology Programme, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Institució Catalana de Recerca I Estudis Avançats (ICREA), Barcelona, Spain
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12
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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: 46] [Impact Index Per Article: 9.2] [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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13
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Zhang L, Wei D, Zhu Y, Gao Y, Yan J, Chen ZJ. Rates of live birth after mosaic embryo transfer compared with euploid embryo transfer. J Assist Reprod Genet 2018; 36:165-172. [PMID: 30246223 DOI: 10.1007/s10815-018-1322-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 09/14/2018] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Mosaicism is a prevalent characteristic of human preimplantation embryos. This retrospective cohort study aimed to investigate pregnancy outcomes after transfer of mosaic or euploid embryos. METHODS The embryos, which had been transferred as "euploidy," were processed using array-based comparative genomic hybridization (aCGH). The original aCGH charts of the transferred embryos were reanalyzed. Mosaic and control euploid embryos were defined according to log2 ratio calls. RESULTS Overall, 102 embryos were determined to be mosaic, of which 101 were estimated to harbor no more than 50% aneuploid mosaicism. Additionally, 268 euploid embryos were matched as controls. The rates of live birth (46.6% vs. 59.1%, odds ratio (OR) 0.60, 95% confidence interval (CI) 0.38-0.95), and biochemical pregnancy (65.7% vs. 76.1%, OR 0.60, 95% CI 0.37-0.99) per transfer cycle were significantly lower after mosaic embryo transfer than after euploid embryo transfer. The rates of clinical pregnancy and pregnancy loss and the risks of obstetric outcomes did not differ significantly between the two groups. CONCLUSIONS Compared with euploid embryo transfer, mosaic embryo transfer is associated with a lower rate of live birth, which is mainly attributed to a decreased rate of conception. However, as mosaic embryo transfer yielded a live birth rate of 46.6%, patients without euploid embryos could be counseled regarding this alternative option.
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Affiliation(s)
- Lei Zhang
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.,Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Daimin Wei
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.,Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Yueting Zhu
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.,Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Yuan Gao
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.,Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
| | - Junhao Yan
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jingliu Road 157, Jinan, 250021, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China. .,The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China. .,Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jingliu Road 157, Jinan, 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China.,The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, China.,Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China.,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
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14
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McCoy R, Demko Z, Ryan A, Banjevic M, Hill M, Sigurjonsson S, Rabinowitz M, Fraser H, Petrov D. Common variants associated with mitotic-origin of aneuploidy in human embryos. Reprod Biomed Online 2018. [DOI: 10.1016/j.rbmo.2017.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Palermo GD, O'Neill CL, Chow S, Cheung S, Parrella A, Pereira N, Rosenwaks Z. Intracytoplasmic sperm injection: state of the art in humans. Reproduction 2017; 154:F93-F110. [PMID: 29158352 PMCID: PMC5719728 DOI: 10.1530/rep-17-0374] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/09/2017] [Accepted: 11/20/2017] [Indexed: 12/31/2022]
Abstract
Among infertile couples, 25% involve both male and female factors, while male factor alone accounts for another 25% due to oligo-, astheno-, teratozoospermia, a combination of the three, or even a complete absence of sperm cells in the ejaculate and can lead to a poor prognosis even with the help of assisted reproductive technology (ART). Intracytoplasmic sperm injection (ICSI) has been with us now for a quarter of a century and in spite of the controversy generated since its inception, it remains in the forefront of the techniques utilized in ART. The development of ICSI in 1992 has drastically decreased the impact of male factor, resulting in millions of pregnancies worldwide for couples who, without ICSI, would have had little chance of having their own biological child. This review focuses on the state of the art of ICSI regarding utility of bioassays that evaluate male factor infertility beyond the standard semen analysis and describes the current application and advances in regard to ICSI, particularly the genetic and epigenetic characteristics of spermatozoa and their impact on reproductive outcome.
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Affiliation(s)
- G D Palermo
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
| | - C L O'Neill
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
| | - S Chow
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
| | - S Cheung
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
| | - A Parrella
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
| | - N Pereira
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
| | - Z Rosenwaks
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive MedicineWeill Cornell Medicine, New York, New York, USA
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16
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Maniswami RR, Prashanth S, Karanth AV, Koushik S, Govindaraj H, Mullangi R, Rajagopal S, Jegatheesan SK. PLK4: a link between centriole biogenesis and cancer. Expert Opin Ther Targets 2017; 22:59-73. [PMID: 29171762 DOI: 10.1080/14728222.2018.1410140] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Polo like kinase (PLK) is known to play a pivotal role in various cell cycle processes to perpetuate proper division and growth of the cells. Polo like kinase-4 (PLK4) is one such kinase that appears in low abundance and plays a well-characterized role in centriole duplication. PLK4 deregulation (i.e. both overexpression and depletion of PLK4), leads to altered mitotic fidelity and thereby triggers tumorigenesis. Hence, over the last few years PLK4 has emerged as a potential therapeutic target for the treatment of various advanced cancers. Areas covered: In this review, we discuss the basic structure, expression, localization and functions of PLK4 along with its regulation by various proteins. We also discuss the role of altered PLK4 activity in the onset of cancer and the current pre-clinical and clinical inhibitors to regulate PLK4. Expert opinion: PLK4 mediated centriole duplication has a crucial role in maintaining mitotic correctness in normal cells, while its deregulation has a greater impact on genesis of cancer. Henceforth, a deep knowledge of the PLK4 levels, its role and interactions with various proteins in cancer is required to design effective inhibitors for clinical use.
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Affiliation(s)
| | | | | | - Sindhu Koushik
- a Jubilant Biosys Ltd, Bioinformatics , Bangalore , India
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17
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McCoy RC. Mosaicism in Preimplantation Human Embryos: When Chromosomal Abnormalities Are the Norm. Trends Genet 2017; 33:448-463. [PMID: 28457629 DOI: 10.1016/j.tig.2017.04.001] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 11/15/2022]
Abstract
Along with errors in meiosis, mitotic errors during post-zygotic cell division contribute to pervasive aneuploidy in human embryos. Relatively little is known, however, about the genesis of these errors or their fitness consequences. Rapid technological advances are helping to close this gap, revealing diverse molecular mechanisms contributing to mitotic error. These include altered cell cycle checkpoints, aberrations of the centrosome, and failed chromatid cohesion, mirroring findings from cancer biology. Recent studies are challenging the idea that mitotic error is abnormal, emphasizing that the fitness impacts of mosaicism depend on its scope and severity. In light of these findings, technical and philosophical limitations of various screening approaches are discussed, along with avenues for future research.
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Affiliation(s)
- Rajiv C McCoy
- Department of Genome Sciences, University of Washington, Seattle, WA, USA.
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