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Gryaznova Y, Keating L, Touati SA, Cladière D, El Yakoubi W, Buffin E, Wassmann K. Kinetochore individualization in meiosis I is required for centromeric cohesin removal in meiosis II. EMBO J 2021; 40:e106797. [PMID: 33644892 PMCID: PMC8013791 DOI: 10.15252/embj.2020106797] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/11/2022] Open
Abstract
Partitioning of the genome in meiosis occurs through two highly specialized cell divisions, named meiosis I and meiosis II. Step-wise cohesin removal is required for chromosome segregation in meiosis I, and sister chromatid segregation in meiosis II. In meiosis I, mono-oriented sister kinetochores appear as fused together when examined by high-resolution confocal microscopy, whereas they are clearly separated in meiosis II, when attachments are bipolar. It has been proposed that bipolar tension applied by the spindle is responsible for the physical separation of sister kinetochores, removal of cohesin protection, and chromatid separation in meiosis II. We show here that this is not the case, and initial separation of sister kinetochores occurs already in anaphase I independently of bipolar spindle forces applied on sister kinetochores, in mouse oocytes. This kinetochore individualization depends on separase cleavage activity. Crucially, without kinetochore individualization in meiosis I, bivalents when present in meiosis II oocytes separate into chromosomes and not sister chromatids. This shows that whether centromeric cohesin is removed or not is determined by the kinetochore structure prior to meiosis II.
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Affiliation(s)
- Yulia Gryaznova
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
| | - Leonor Keating
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
| | - Sandra A Touati
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
| | - Damien Cladière
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
| | - Warif El Yakoubi
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
- Present address:
Cell and Developmental Biology CenterNational Heart Lung and Blood InstituteNational Institutes of HealthBethesdaMDUSA
| | - Eulalie Buffin
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
| | - Katja Wassmann
- Institut de Biologie Paris SeineSorbonne UniversitéParisFrance
- CNRS UMR7622 Developmental Biology LabSorbonne UniversitéParisFrance
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El Yakoubi W, Buffin E, Cladière D, Gryaznova Y, Berenguer I, Touati SA, Gómez R, Suja JA, van Deursen JM, Wassmann K. Mps1 kinase-dependent Sgo2 centromere localisation mediates cohesin protection in mouse oocyte meiosis I. Nat Commun 2017; 8:694. [PMID: 28947820 PMCID: PMC5612927 DOI: 10.1038/s41467-017-00774-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 07/27/2017] [Indexed: 01/10/2023] Open
Abstract
A key feature of meiosis is the step-wise removal of cohesin, the protein complex holding sister chromatids together, first from arms in meiosis I and then from the centromere region in meiosis II. Centromeric cohesin is protected by Sgo2 from Separase-mediated cleavage, in order to maintain sister chromatids together until their separation in meiosis II. Failures in step-wise cohesin removal result in aneuploid gametes, preventing the generation of healthy embryos. Here, we report that kinase activities of Bub1 and Mps1 are required for Sgo2 localisation to the centromere region. Mps1 inhibitor-treated oocytes are defective in centromeric cohesin protection, whereas oocytes devoid of Bub1 kinase activity, which cannot phosphorylate H2A at T121, are not perturbed in cohesin protection as long as Mps1 is functional. Mps1 and Bub1 kinase activities localise Sgo2 in meiosis I preferentially to the centromere and pericentromere respectively, indicating that Sgo2 at the centromere is required for protection.In meiosis I centromeric cohesin is protected by Sgo2 from Separase-mediated cleavage ensuring that sister chromatids are kept together until their separation in meiosis II. Here the authors demonstrate that Bub1 and Mps1 kinase activities are required for Sgo2 localisation to the centromere region.
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Affiliation(s)
- Warif El Yakoubi
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France
| | - Eulalie Buffin
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France
| | - Damien Cladière
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France
| | - Yulia Gryaznova
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France
| | - Inés Berenguer
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France
- Unidad de Biología Celular, Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Sandra A Touati
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France
- Chromosome Segregation Laboratory, Lincoln's Inn Fields Laboratory, The Francis Crick Institute, London, WC2A 3LY, UK
| | - Rocío Gómez
- Unidad de Biología Celular, Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - José A Suja
- Unidad de Biología Celular, Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Jan M van Deursen
- Department of Pediatric and Adolescent Medicine and Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Katja Wassmann
- Sorbonne Universités, UPMC Univ. Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, Paris, 75005, France.
- CNRS, IBPS, UMR7622 Developmental Biology Lab, Paris, 75005, France.
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Lam F, Cladière D, Guillaume C, Wassmann K, Bolte S. Super-resolution for everybody: An image processing workflow to obtain high-resolution images with a standard confocal microscope. Methods 2016; 115:17-27. [PMID: 27826080 DOI: 10.1016/j.ymeth.2016.11.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/02/2016] [Accepted: 11/04/2016] [Indexed: 11/29/2022] Open
Abstract
In the presented work we aimed at improving confocal imaging to obtain highest possible resolution in thick biological samples, such as the mouse oocyte. We therefore developed an image processing workflow that allows improving the lateral and axial resolution of a standard confocal microscope. Our workflow comprises refractive index matching, the optimization of microscope hardware parameters and image restoration by deconvolution. We compare two different deconvolution algorithms, evaluate the necessity of denoising and establish the optimal image restoration procedure. We validate our workflow by imaging sub resolution fluorescent beads and measuring the maximum lateral and axial resolution of the confocal system. Subsequently, we apply the parameters to the imaging and data restoration of fluorescently labelled meiotic spindles of mouse oocytes. We measure a resolution increase of approximately 2-fold in the lateral and 3-fold in the axial direction throughout a depth of 60μm. This demonstrates that with our optimized workflow we reach a resolution that is comparable to 3D-SIM-imaging, but with better depth penetration for confocal images of beads and the biological sample.
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Affiliation(s)
- France Lam
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Core Facilities - Institut de Biologie Paris Seine (IBPS), 75005 Paris, France
| | - Damien Cladière
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratory of Developmental Biology - Institut de Biologie Paris Seine (IBPS), 75005 Paris, France
| | - Cyndélia Guillaume
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Core Facilities - Institut de Biologie Paris Seine (IBPS), 75005 Paris, France
| | - Katja Wassmann
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratory of Developmental Biology - Institut de Biologie Paris Seine (IBPS), 75005 Paris, France
| | - Susanne Bolte
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Core Facilities - Institut de Biologie Paris Seine (IBPS), 75005 Paris, France.
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Touati SA, Buffin E, Cladière D, Hached K, Rachez C, van Deursen JM, Wassmann K. Mouse oocytes depend on BubR1 for proper chromosome segregation but not for prophase I arrest. Nat Commun 2015; 6:6946. [PMID: 25897860 DOI: 10.1038/ncomms7946] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 03/16/2015] [Indexed: 12/19/2022] Open
Abstract
Mammalian female meiosis is error prone, with rates of meiotic chromosome missegregations strongly increasing towards the end of the reproductive lifespan. A strong reduction of BubR1 has been observed in oocytes of women approaching menopause and in ovaries of aged mice, which led to the hypothesis that a gradual decline of BubR1 contributes to age-related aneuploidization. Here we employ a conditional knockout approach in mouse oocytes to dissect the meiotic roles of BubR1. We show that BubR1 is required for diverse meiotic functions, including persistent spindle assembly checkpoint activity, timing of meiosis I and the establishment of robust kinetochore-microtubule attachments in a meiosis-specific manner, but not prophase I arrest. These data reveal that BubR1 plays a multifaceted role in chromosome segregation during the first meiotic division and suggest that age-related decline of BubR1 is a key determinant of the formation of aneuploid oocytes as women approach menopause.
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Affiliation(s)
- Sandra A Touati
- Sorbonne Universités, UPMC Université Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, 75005 Paris, France.,CNRS, IBPS, UMR7622 Developmental Biology Lab, 75005 Paris, France
| | - Eulalie Buffin
- Sorbonne Universités, UPMC Université Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, 75005 Paris, France.,CNRS, IBPS, UMR7622 Developmental Biology Lab, 75005 Paris, France
| | - Damien Cladière
- Sorbonne Universités, UPMC Université Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, 75005 Paris, France.,CNRS, IBPS, UMR7622 Developmental Biology Lab, 75005 Paris, France
| | - Khaled Hached
- Sorbonne Universités, UPMC Université Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, 75005 Paris, France.,CNRS, IBPS, UMR7622 Developmental Biology Lab, 75005 Paris, France
| | - Christophe Rachez
- Departement de Biologie du Développement et Cellules Souches, CNRS URA2578, Unité de Régulation Epigénétique, Institut Pasteur, 75015 Paris, France
| | - Jan M van Deursen
- Department of Pediatric and Adolescent Medicine and Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
| | - Katja Wassmann
- Sorbonne Universités, UPMC Université Paris 06, Institut de Biologie Paris Seine (IBPS), UMR7622, 75005 Paris, France.,CNRS, IBPS, UMR7622 Developmental Biology Lab, 75005 Paris, France
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Touati SA, Cladière D, Lister LM, Leontiou I, Chambon JP, Rattani A, Böttger F, Stemmann O, Nasmyth K, Herbert M, Wassmann K. Cyclin A2 is required for sister chromatid segregation, but not separase control, in mouse oocyte meiosis. Cell Rep 2012; 2:1077-87. [PMID: 23122964 DOI: 10.1016/j.celrep.2012.10.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 09/04/2012] [Accepted: 10/02/2012] [Indexed: 11/18/2022] Open
Abstract
In meiosis, two specialized cell divisions allow the separation of paired chromosomes first, then of sister chromatids. Separase removes the cohesin complex holding sister chromatids together in a stepwise manner from chromosome arms in meiosis I, then from the centromere region in meiosis II. Using mouse oocytes, our study reveals that cyclin A2 promotes entry into meiosis, as well as an additional unexpected role; namely, its requirement for separase-dependent sister chromatid separation in meiosis II. Untimely cyclin A2-associated kinase activity in meiosis I leads to precocious sister separation, whereas inhibition of cyclin A2 in meiosis II prevents it. Accordingly, endogenous cyclin A is localized to kinetochores throughout meiosis II, but not in anaphase I. Additionally, we found that cyclin B1, but not cyclin A2, inhibits separase in meiosis I. These findings indicate that separase-dependent cohesin removal is differentially regulated by cyclin B1 and A2 in mammalian meiosis.
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Affiliation(s)
- Sandra A Touati
- UPMC Université Paris 06, UMR7622 Laboratoire de Biologie du Développement, 9 quai St. Bernard, Paris 75005, France
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Hached K, Xie SZ, Buffin E, Cladière D, Rachez C, Sacras M, Sorger PK, Wassmann K. Mps1 at kinetochores is essential for female mouse meiosis I. J Cell Sci 2011. [DOI: 10.1242/jcs.092858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hached K, Xie SZ, Buffin E, Cladière D, Rachez C, Sacras M, Sorger PK, Wassmann K. Mps1 at kinetochores is essential for female mouse meiosis I. Development 2011; 138:2261-71. [DOI: 10.1242/dev.061317] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In female meiosis, chromosome missegregations lead to the generation of aneuploid oocytes and can cause the development of trisomies or infertility. Because mammalian female meiosis I is error prone, the full functionality of control mechanisms, such as the spindle assembly checkpoint (SAC), has been put into question. The SAC monitors the correct orientation, microtubule occupancy and tension on proteinaceous structures named kinetochores. Although it has been shown previously that the SAC exists in meiosis I, where attachments are monopolar, the role of microtubule occupancy for silencing the SAC and the importance of certain essential SAC components, such as the kinase Mps1, are unknown in mammalian oocytes. Using a conditional loss-of-function approach, we address the role of Mps1 in meiotic progression and checkpoint control in meiosis I. Our data demonstrate that kinetochore localization of Mps1 is required for the proper timing of prometaphase and is essential for SAC control, chromosome alignment and aurora C localization in meiosis I. The absence of Mps1 from kinetochores severely impairs chromosome segregation in oocyte meiosis I and, therefore, fertility in mice. In addition, we settle a long-standing question in showing that kinetochore-microtubule attachments are present in prometaphase I at a time when most of the SAC protein Mad2 disappears from kinetochores.
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Affiliation(s)
- Khaled Hached
- UPMC, 9 quai St Bernard, 75005 Paris, France
- CNRS UMR7622 Biologie du Développement, Cell Division and Associated Checkpoints, 9 quai St Bernard, 75005 Paris, France
| | - Stephanie Z. Xie
- Department of Biology, Center for Cancer Research, and Biological Engineering Division, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Center for Cell Decision Processes, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Eulalie Buffin
- UPMC, 9 quai St Bernard, 75005 Paris, France
- CNRS UMR7622 Biologie du Développement, Cell Division and Associated Checkpoints, 9 quai St Bernard, 75005 Paris, France
| | - Damien Cladière
- UPMC, 9 quai St Bernard, 75005 Paris, France
- CNRS UMR7622 Biologie du Développement, Cell Division and Associated Checkpoints, 9 quai St Bernard, 75005 Paris, France
| | - Christophe Rachez
- Institut Pasteur, CNRS URA2578, 75724 Paris cedex 15, France
- Unité de Régulation Epigénétique, INSERM Avenir, Institut Pasteur, 75724 Paris cedex 15, France
| | - Marina Sacras
- UPMC, 9 quai St Bernard, 75005 Paris, France
- CNRS UMR7622 Biologie du Développement, Cell Division and Associated Checkpoints, 9 quai St Bernard, 75005 Paris, France
| | - Peter K. Sorger
- Department of Biology, Center for Cancer Research, and Biological Engineering Division, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Center for Cell Decision Processes, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Katja Wassmann
- UPMC, 9 quai St Bernard, 75005 Paris, France
- CNRS UMR7622 Biologie du Développement, Cell Division and Associated Checkpoints, 9 quai St Bernard, 75005 Paris, France
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