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Audoor S, Bilcke G, Pargana K, Belišová D, Thierens S, Van Bel M, Sterck L, Rijsdijk N, Annunziata R, Ferrante MI, Vandepoele K, Vyverman W. Transcriptional chronology reveals conserved genes involved in pennate diatom sexual reproduction. Mol Ecol 2024; 33:e17320. [PMID: 38506152 DOI: 10.1111/mec.17320] [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: 08/30/2023] [Revised: 01/23/2024] [Accepted: 03/07/2024] [Indexed: 03/21/2024]
Abstract
Sexual reproduction is a major driver of adaptation and speciation in eukaryotes. In diatoms, siliceous microalgae with a unique cell size reduction-restitution life cycle and among the world's most prolific primary producers, sex also acts as the main mechanism for cell size restoration through the formation of an expanding auxospore. However, the molecular regulators of the different stages of sexual reproduction and size restoration are poorly explored. Here, we combined RNA sequencing with the assembly of a 55 Mbp reference genome for Cylindrotheca closterium to identify patterns of gene expression during different stages of sexual reproduction. These were compared with a corresponding transcriptomic time series of Seminavis robusta to assess the degree of expression conservation. Integrative orthology analysis revealed 138 one-to-one orthologues that are upregulated during sex in both species, among which 56 genes consistently upregulated during cell pairing and gametogenesis, and 11 genes induced when auxospores are present. Several early, sex-specific transcription factors and B-type cyclins were also upregulated during sex in other pennate and centric diatoms, pointing towards a conserved core regulatory machinery for meiosis and gametogenesis across diatoms. Furthermore, we find molecular evidence that the pheromone-induced cell cycle arrest is short-lived in benthic diatoms, which may be linked to their active mode of mate finding through gliding. Finally, we exploit the temporal resolution of our comparative analysis to report the first marker genes for auxospore identity called AAE1-3 ("Auxospore-Associated Expression"). Altogether, we introduce a multi-species model of the transcriptional dynamics during size restoration in diatoms and highlight conserved gene expression dynamics during different stages of sexual reproduction.
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Affiliation(s)
- Sien Audoor
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Ghent, Ghent, Belgium
| | - Gust Bilcke
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Ghent, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Katerina Pargana
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Ghent, Ghent, Belgium
| | - Darja Belišová
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Ghent, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Sander Thierens
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Michiel Van Bel
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Lieven Sterck
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Nadine Rijsdijk
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Ghent, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | | | - Maria Immacolata Ferrante
- Stazione Zoologica Anton Dohrn, Naples, Italy
- Associate to the National Institute of Oceanography and Applied Geophysics, Trieste, Italy
| | - Klaas Vandepoele
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for AI & Computational Biology, VIB, Ghent, Belgium
| | - Wim Vyverman
- Laboratory of Protistology and Aquatic Ecology, Department of Biology, University Ghent, Ghent, Belgium
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Nong C, Chen Y, Yang H, Chen N, Tian C, Li S, Chen H. Phenotypic sorting of individual male and female intersex Cherax quadricarinatus and analysis of molecular differences in the gonadal transcriptome. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 49:101194. [PMID: 38246110 DOI: 10.1016/j.cbd.2024.101194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/11/2024] [Accepted: 01/13/2024] [Indexed: 01/23/2024]
Abstract
Cherax quadricarinatus exhibit sexual dimorphism, with males outpacing females in size specification and growth rate. However, there is limited understanding of the molecular mechanisms underlying sex determination and sex differentiation in crustaceans. To study the differences between intersex individuals and normal individuals, this study counted the proportion of intersex individuals in the natural population, collected the proportion of 7 different phenotypes in 200 intersex individuals, and observed the differences in tissue sections. RNA-seq was used to study the different changes in the transcriptome of normal and intersex gonads. The results showed that: the percentage of intersex in the natural population was 1.5 %, and the percentage of different types of intersex ranged from 0.5 % to 22.5 %; the sections revealed that the development of normal ovaries was stagnant at the primary oocyte stage when intersex individuals with ovaries were present; We screened for pathways and genes that may be associated with gonadal development and sex, including ovarian steroid synthesis, estrogen signaling pathway, oocyte meiosis, progesterone-mediated oocyte maturation, etc. Relevant genes including tra2a, dmrta2, ccnb2, foxl2, and smad4. This study provides an important molecular basis for sex determination, sex-controlled breeding, and unisex breeding in red crayfish.
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Affiliation(s)
- Chuntai Nong
- Fisheries College, Guangdong Ocean University, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang 524088, China
| | - Yibin Chen
- Guangdong Evergreen Feed Industry Co., Ltd., Evergreen Tower, Zhanjiang, Guangdong, China
| | - Hao Yang
- Fisheries College, Guangdong Ocean University, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang 524088, China
| | - Nanxiong Chen
- Guangdong Evergreen Feed Industry Co., Ltd., Evergreen Tower, Zhanjiang, Guangdong, China
| | - Changxu Tian
- Fisheries College, Guangdong Ocean University, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang 524088, China
| | - Sedong Li
- Guangdong Evergreen Feed Industry Co., Ltd., Evergreen Tower, Zhanjiang, Guangdong, China.; Zhanjiang Ocean and Fishery Development Research Center, Zhanjiang, China.
| | - Huapu Chen
- Fisheries College, Guangdong Ocean University, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang 524088, China; Guangdong Havwii agriculture group Co., Ltd, Zhanjiang 524266, China.
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3
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Wang X, Leung FS, Bush JO, Conti M. Alternative cleavage and polyadenylation of the Ccnb1 mRNA defines accumulation of cyclin protein during the meiotic cell cycle. Nucleic Acids Res 2024; 52:1258-1271. [PMID: 38048302 PMCID: PMC10853788 DOI: 10.1093/nar/gkad1151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 11/01/2023] [Accepted: 11/14/2023] [Indexed: 12/06/2023] Open
Abstract
Progression through the mitotic and meiotic cell cycle is driven by fluctuations in the levels of cyclins, the regulatory subunits controlling the localization and activity of CDK1 kinases. Cyclin levels are regulated through a precise balance of synthesis and degradation. Here we demonstrate that the synthesis of Cyclin B1 during the oocyte meiotic cell cycle is defined by the selective translation of mRNA variants generated through alternative cleavage and polyadenylation (APA). Using gene editing in mice, we introduced mutations into the proximal and distal polyadenylation elements of the 3' untranslated region (UTR) of the Ccnb1 mRNA. Through in vivo loss-of-function experiments, we demonstrate that the translation of mRNA with a short 3' UTR specifies Cyclin B1 protein levels that set the timing of meiotic re-entry. In contrast, translation directed by a long 3' UTR is necessary to direct Cyclin B1 protein accumulation during the MI/MII transition. These findings establish that the progression through the cell cycle is dependent on the selective translation of multiple mRNA variants generated by APA.
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Affiliation(s)
- Xiaotian Wang
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- USA Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Fang-Shiuan Leung
- USA Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA 94143, USA
- Program in Craniofacial Biology, University of California San Francisco, San Francisco, CA 94143, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA
| | - Jeffrey O Bush
- USA Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA 94143, USA
- Program in Craniofacial Biology, University of California San Francisco, San Francisco, CA 94143, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA
| | - Marco Conti
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- USA Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
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Kim HM, Kang MK, Seong SY, Jo JH, Kim MJ, Shin EK, Lee CG, Han SJ. Meiotic Cell Cycle Progression in Mouse Oocytes: Role of Cyclins. Int J Mol Sci 2023; 24:13659. [PMID: 37686466 PMCID: PMC10487953 DOI: 10.3390/ijms241713659] [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: 08/14/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
All eukaryotic cells, including oocytes, utilize an engine called cyclin-dependent kinase (Cdk) to drive the cell cycle. Cdks are activated by a co-factor called cyclin, which regulates their activity. The key Cdk-cyclin complex that regulates the oocyte cell cycle is known as Cdk1-cyclin B1. Recent studies have elucidated the roles of other cyclins, such as B2, B3, A2, and O, in oocyte cell cycle regulation. This review aims to discuss the recently discovered roles of various cyclins in mouse oocyte cell cycle regulation in accordance with the sequential progression of the cell cycle. In addition, this review addresses the translation and degradation of cyclins to modulate the activity of Cdks. Overall, the literature indicates that each cyclin performs unique and redundant functions at various stages of the cell cycle, while their expression and degradation are tightly regulated. Taken together, this review provides new insights into the regulatory role and function of cyclins in oocyte cell cycle progression.
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Affiliation(s)
- Hye Min Kim
- Department of Biological Science, Inje University, Gimhae 50834, Republic of Korea; (H.M.K.); (E.K.S.)
- Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea; (M.K.K.); (C.G.L.)
| | - Min Kook Kang
- Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea; (M.K.K.); (C.G.L.)
| | - Se Yoon Seong
- Institute for Digital Antiaging Healthcare, Inje University, Gimhae 50834, Republic of Korea; (S.Y.S.); (J.H.J.); (M.J.K.)
| | - Jun Hyeon Jo
- Institute for Digital Antiaging Healthcare, Inje University, Gimhae 50834, Republic of Korea; (S.Y.S.); (J.H.J.); (M.J.K.)
| | - Min Ju Kim
- Institute for Digital Antiaging Healthcare, Inje University, Gimhae 50834, Republic of Korea; (S.Y.S.); (J.H.J.); (M.J.K.)
| | - Eun Kyeong Shin
- Department of Biological Science, Inje University, Gimhae 50834, Republic of Korea; (H.M.K.); (E.K.S.)
- Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea; (M.K.K.); (C.G.L.)
| | - Chang Geun Lee
- Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea; (M.K.K.); (C.G.L.)
| | - Seung Jin Han
- Department of Biological Science, Inje University, Gimhae 50834, Republic of Korea; (H.M.K.); (E.K.S.)
- Institute for Digital Antiaging Healthcare, Inje University, Gimhae 50834, Republic of Korea; (S.Y.S.); (J.H.J.); (M.J.K.)
- Department of Medical Biotechnology, Inje University, Gimhae 50834, Republic of Korea
- Institute of Basic Science, Inje University, Gimhae 50834, Republic of Korea
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Wang C, Chen MX, Zhang Y, Bai X, Cao Q, Han J, Zhang N, Zhao C, Ling X, Rui X, Guan Y, Zhang J, Huo R. Mutations in CCNB3 affect its location thus causing a multiplicity of phenotypes in human oocytes maturation by aberrant CDK1 activity and APC/C activity at different stages. J Ovarian Res 2023; 16:178. [PMID: 37635245 PMCID: PMC10463413 DOI: 10.1186/s13048-023-01229-8] [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: 02/27/2023] [Accepted: 07/01/2023] [Indexed: 08/29/2023] Open
Abstract
BACKGROUND Oocyte maturation arrest results in female infertility and the genetic etiology of this phenotype remains largely unknown. Previous studies have proven that cyclins play a significant role in the cell cycle both in meiosis and mitosis. Cyclin B3 (CCNB3) is one of the members of the cyclin family and its function in human oocyte maturation is poorly understood. METHODS 118 infertile patients were recruited and WES was performed for 68 independent females that experienced oocyte maturation arrest. Four mutations in CCNB3 were found and effects of these mutations were validated by Sanger sequencing and in vitro functional analyses. RESULTS We found these mutations altered the location of cyclin B3 which affected the function of cyclin dependent kinase 1 (CDK1) and led to mouse oocyte arrested at germinal vesicle (GV) stage. And then, low CDK1 activity influenced the degradation of cadherin 1 (CDH1) and the accumulation of cell division cycle 20 (CDC20) which are two types of anaphase-promoting complex/cyclosome (APC/C) activators and act in different stages of the cell cycle. Finally, APC/C activity was downregulated due to insufficient CDC20 level and resulted in oocyte metaphase I (MI) arrest. Moreover, we also found that the addition of PP1 inhibitor Okadic acid and CDK1 inhibitor Roscovitine at corresponding stages during oocyte in vitro maturation (IVM) significantly improved the maturation rates in CCNB3 mutant cRNAs injected oocytes. The above experiments were performed in mouse oocytes. CONCLUSION Here, we report five independent patients in which mutations in CCNB3 may be the cause of oocyte maturation arrest. Our findings shed lights on the critical role of CCNB3 in human oocyte maturation.
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Affiliation(s)
- Congjing Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Municipal Hospital, Gusu School, Suzhou Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Meng Xi Chen
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuan Zhang
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xue Bai
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Municipal Hospital, Gusu School, Suzhou Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Qiqi Cao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Municipal Hospital, Gusu School, Suzhou Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Jian Han
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Municipal Hospital, Gusu School, Suzhou Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Nana Zhang
- Center for Reproductive Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chun Zhao
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiufeng Ling
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ximan Rui
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Municipal Hospital, Gusu School, Suzhou Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China
| | - Yichun Guan
- Center for Reproductive Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Junqiang Zhang
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Ran Huo
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Municipal Hospital, Gusu School, Suzhou Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, China.
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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Lara-Gonzalez P, Variyar S, Budrewicz J, Schlientz A, Varshney N, Bellaart A, Moghareh S, Nguyen ACN, Oegema K, Desai A. Cyclin B3 is a dominant fast-acting cyclin that drives rapid early embryonic mitoses. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.11.553011. [PMID: 37609212 PMCID: PMC10441424 DOI: 10.1101/2023.08.11.553011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
In many species, early embryonic mitoses proceed at a very rapid pace, but how this pace is achieved is not understood. Here we show that in the early C. elegans embryo, cyclin B3 is the dominant driver of rapid embryonic mitoses. Metazoans typically have three cyclin B isoforms that associate with and activate Cdk1 kinase to orchestrate mitotic events: the related cyclins B1 and B2 and the more divergent cyclin B3. We show that whereas embryos expressing cyclins B1 and B2 support slow mitosis (NEBD to Anaphase ~ 600s), the presence of cyclin B3 dominantly drives the ~3-fold faster mitosis observed in wildtype embryos. CYB-1/2-driven mitosis is longer than CYB-3-driven mitosis primarily because the progression of mitotic events itself is slower, rather than delayed anaphase onset due to activation of the spindle checkpoint or inhibitory phosphorylation of the anaphase activator CDC-20. Addition of cyclin B1 to cyclin B3-only mitosis introduces an ~60s delay between the completion of chromosome alignment and anaphase onset, which likely ensures segregation fidelity; this delay is mediated by inhibitory phosphorylation on CDC-20. Thus, the dominance of cyclin B3 in driving mitotic events, coupled to introduction of a short cyclin B1-dependent delay in anaphase onset, sets the rapid pace and ensures fidelity of mitoses in the early C. elegans embryo.
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Affiliation(s)
- Pablo Lara-Gonzalez
- Department of Developmental and Cell Biology, University of California Irvine, CA 92697
- Ludwig Institute for Cancer Research, La Jolla CA 92093
| | - Smriti Variyar
- Department of Cell & Developmental Biology, University of California San Diego, CA 92093
- Department of Cellular & Molecular Medicine, University of California San Diego, CA 92093
| | - Jacqueline Budrewicz
- Ludwig Institute for Cancer Research, La Jolla CA 92093
- Current address: Department of Molecular and Medical Genetics, Oregon Health & Science University (OHSU), OR 97239
- Current address: Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon
| | - Aleesa Schlientz
- Department of Cell & Developmental Biology, University of California San Diego, CA 92093
- Department of Cellular & Molecular Medicine, University of California San Diego, CA 92093
| | - Neha Varshney
- Department of Cell & Developmental Biology, University of California San Diego, CA 92093
- Department of Cellular & Molecular Medicine, University of California San Diego, CA 92093
| | - Andrew Bellaart
- Department of Cell & Developmental Biology, University of California San Diego, CA 92093
- Department of Cellular & Molecular Medicine, University of California San Diego, CA 92093
| | - Shabnam Moghareh
- Department of Developmental and Cell Biology, University of California Irvine, CA 92697
| | - Anh Cao Ngoc Nguyen
- Department of Developmental and Cell Biology, University of California Irvine, CA 92697
| | - Karen Oegema
- Ludwig Institute for Cancer Research, La Jolla CA 92093
- Department of Cell & Developmental Biology, University of California San Diego, CA 92093
- Department of Cellular & Molecular Medicine, University of California San Diego, CA 92093
| | - Arshad Desai
- Ludwig Institute for Cancer Research, La Jolla CA 92093
- Department of Cell & Developmental Biology, University of California San Diego, CA 92093
- Department of Cellular & Molecular Medicine, University of California San Diego, CA 92093
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7
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Li Y, Liu S, Gao F, Peng Z, Zhang J, Li S, Lu D, Pan X. BPA interferes with granulosa cell development and oocyte meiosis in mouse preantral follicles. Exp Biol Med (Maywood) 2023; 248:1145-1158. [PMID: 37452689 PMCID: PMC10583751 DOI: 10.1177/15353702231179940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/27/2023] [Indexed: 07/18/2023] Open
Abstract
Bisphenol A (BPA) is an established environmental endocrine disruptor and can interfere with the development of female germ cells. However, the underlying mechanisms are still unclear. We investigated the effects of BPA on granulosa cell development and meiosis of oocytes using in vitro culture system of mouse preantral follicles. Preantral follicles from D14 mouse ovary were treated with 10 μg/mL BPA in vitro for 11 days. The adherent area of follicles was measured. On D11, cumulus cell expansion was observed. The meiosis recovery rate was calculated. Western blot detected P53, proliferating cell nuclear antigen (PCNA), estrogen receptor α (ERα), and cyclin B1. ELISA measured estrogen and progesterone levels. Immunofluorescence detected Cx37 on oocyte membrane. Gap junction communication was assessed. We found that BPA significantly promoted the expressions of PCNA and ERα in granulosa cells and the secretion of estrogen and progesterone by granulosa cells on D10 and significantly increased the attachment area of the follicles on D8 and D10. However, it reduced the expansion of cumulus cells, Cx37 expression, and the gap junction communication between cumulus cells and oocytes on D11. BPA promoted the recovery of oocytes from meiosis, interrupted the expression of cyclin B1 protein in arrested germinal vesicle breakdown (GVBD) oocytes, and reduced the in vitro maturation rate of oocytes. These GVBD oocytes were live without apoptosis or death. Conclusively, BPA disturbs the development of granulosa cells and the meiosis progression of oocytes by decreasing gap junction communication between oocytes and the granulosa cells as well as regulating cyclin B1 expression in GVBD oocytes.
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Affiliation(s)
- Yaqiu Li
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
- Department of Anatomy, Jilin Medical University, Jilin 132013, P.R. China
| | - Sitong Liu
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
- Department of Anatomy, Jilin Medical University, Jilin 132013, P.R. China
| | - Fan Gao
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
| | - Zhendong Peng
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
| | - Jinyu Zhang
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
| | - Song Li
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
| | - Dongjin Lu
- Jilin Animal Husbandry General Station, Jilin 132011, P.R. China
| | - Xiaoyan Pan
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, P.R. China
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8
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Huang L, Li W, Dai X, Zhao S, Xu B, Wang F, Jin RT, Luo L, Wu L, Jiang X, Cheng Y, Zou J, Xu C, Tong X, Fan HY, Zhao H, Bao J. Biallelic variants in MAD2L1BP ( p31comet) cause female infertility characterized by oocyte maturation arrest. eLife 2023; 12:e85649. [PMID: 37334967 PMCID: PMC10319434 DOI: 10.7554/elife.85649] [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: 12/18/2022] [Accepted: 06/15/2023] [Indexed: 06/21/2023] Open
Abstract
Human oocyte maturation arrest represents one of the severe conditions for female patients with primary infertility. However, the genetic factors underlying this human disease remain largely unknown. The spindle assembly checkpoint (SAC) is an intricate surveillance mechanism that ensures accurate segregation of chromosomes throughout cell cycles. Once the kinetochores of chromosomes are correctly attached to bipolar spindles and the SAC is satisfied, the MAD2L1BP, best known as p31comet, binds mitosis arrest deficient 2 (MAD2) and recruits the AAA+-ATPase TRIP13 to disassemble the mitotic checkpoint complex (MCC), leading to the cell-cycle progression. In this study, by whole-exome sequencing (WES), we identified homozygous and compound heterozygous MAD2L1BP variants in three families with female patients diagnosed with primary infertility owing to oocyte metaphase I (MI) arrest. Functional studies revealed that the protein variants resulting from the C-terminal truncation of MAD2L1BP lost their binding ability to MAD2. cRNA microinjection of full-length or truncated MAD2L1BP uncovered their discordant roles in driving the extrusion of polar body 1 (PB1) in mouse oocytes. Furthermore, the patient's oocytes carrying the mutated MAD2L1BP resumed polar body extrusion (PBE) when rescued by microinjection of full-length MAD2L1BP cRNAs. Together, our studies identified and characterized novel biallelic variants in MAD2L1BP responsible for human oocyte maturation arrest at MI, and thus prompted new therapeutic avenues for curing female primary infertility.
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Affiliation(s)
- Lingli Huang
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Anhui Provincial Hospital Affiliated to Anhui Medical UniversityHefeiChina
| | - Wenqing Li
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Hefei National Laboratory for Physical Sciences at Microscale, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China (USTC)HefeiChina
| | - Xingxing Dai
- Life Sciences Institute, Zhejiang UniversityHangzhouChina
- International Institutes of Medicine, the Fourth Affiliated Hospital of Zhejiang University School of MedicineYiwuChina
| | - Shuai Zhao
- Hospital for Reproductive Medicine, State Key Laboratory of Reproductive Medicine and Offspring Health, Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Shandong UniversityJinanChina
| | - Bo Xu
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
| | - Fengsong Wang
- School of Life Science, Anhui Medical UniversityHefeiChina
| | - Ren-Tao Jin
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
| | - Lihua Luo
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
| | - Limin Wu
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
| | - Xue Jiang
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Hefei National Laboratory for Physical Sciences at Microscale, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China (USTC)HefeiChina
| | - Yu Cheng
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Hefei National Laboratory for Physical Sciences at Microscale, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China (USTC)HefeiChina
| | - Jiaqi Zou
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Hefei National Laboratory for Physical Sciences at Microscale, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China (USTC)HefeiChina
| | - Caoling Xu
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Hefei National Laboratory for Physical Sciences at Microscale, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China (USTC)HefeiChina
| | - Xianhong Tong
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang UniversityHangzhouChina
| | - Han Zhao
- Hospital for Reproductive Medicine, State Key Laboratory of Reproductive Medicine and Offspring Health, Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Shandong UniversityJinanChina
| | - Jianqiang Bao
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaHefeiChina
- Hefei National Laboratory for Physical Sciences at Microscale, Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China (USTC)HefeiChina
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9
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Jiang Y, Adhikari D, Li C, Zhou X. Spatiotemporal regulation of maternal mRNAs during vertebrate oocyte meiotic maturation. Biol Rev Camb Philos Soc 2023; 98:900-930. [PMID: 36718948 DOI: 10.1111/brv.12937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 02/01/2023]
Abstract
Vertebrate oocytes face a particular challenge concerning the regulation of gene expression during meiotic maturation. Global transcription becomes quiescent in fully grown oocytes, remains halted throughout maturation and fertilization, and only resumes upon embryonic genome activation. Hence, the oocyte meiotic maturation process is largely regulated by protein synthesis from pre-existing maternal messenger RNAs (mRNAs) that are transcribed and stored during oocyte growth. Rapidly developing genome-wide techniques have greatly expanded our insights into the global translation changes and possible regulatory mechanisms during oocyte maturation. The storage, translation, and processing of maternal mRNAs are thought to be regulated by factors interacting with elements in the mRNA molecules. Additionally, posttranscriptional modifications of mRNAs, such as methylation and uridylation, have recently been demonstrated to play crucial roles in maternal mRNA destabilization. However, a comprehensive understanding of the machineries that regulate maternal mRNA fate during oocyte maturation is still lacking. In particular, how the transcripts of important cell cycle components are stabilized, recruited at the appropriate time for translation, and eliminated to modulate oocyte meiotic progression remains unclear. A better understanding of these mechanisms will provide invaluable insights for the preconditions of developmental competence acquisition, with important implications for the treatment of infertility. This review discusses how the storage, localization, translation, and processing of oocyte mRNAs are regulated, and how these contribute to oocyte maturation progression.
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Affiliation(s)
- Yanwen Jiang
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Deepak Adhikari
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, 19 Innovation Walk, Melbourne, VIC, 3800, Australia
| | - Chunjin Li
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xu Zhou
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
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10
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Lim J, Shioda T, Malott KF, Shioda K, Odajima J, Leon Parada KN, Nguyen J, Getze S, Lee M, Nguyen J, Reshel Blakeley S, Trinh V, Truong HA, Luderer U. Prenatal exposure to benzo[a]pyrene depletes ovarian reserve and masculinizes embryonic ovarian germ cell transcriptome transgenerationally. Sci Rep 2023; 13:8671. [PMID: 37248279 PMCID: PMC10227008 DOI: 10.1038/s41598-023-35494-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 05/18/2023] [Indexed: 05/31/2023] Open
Abstract
People are widely exposed to polycyclic aromatic hydrocarbons, like benzo[a]pyrene (BaP). Prior studies showed that prenatal exposure to BaP depletes germ cells in ovaries, causing earlier onset of ovarian senescence post-natally; developing testes were affected at higher doses than ovaries. Our primary objective was to determine if prenatal BaP exposure results in transgenerational effects on ovaries and testes. We orally dosed pregnant germ cell-specific EGFP-expressing mice (F0) with 0.033, 0.2, or 2 mg/kg-day BaP or vehicle from embryonic day (E) 6.5-11.5 (F1 offspring) or E6.5-15.5 (F2 and F3). Ovarian germ cells at E13.5 and follicle numbers at postnatal day 21 were significantly decreased in F3 females at all doses of BaP; testicular germ cell numbers were not affected. E13.5 germ cell RNA-sequencing revealed significantly increased expression of male-specific genes in female germ cells across generations and BaP doses. Next, we compared the ovarian effects of 2 mg/kg-day BaP dosing to wild type C57BL/6J F0 dams from E6.5-11.5 or E12.5-17.5. We observed no effects on F3 ovarian follicle numbers with either of the shorter dosing windows. Our results demonstrate that F0 BaP exposure from E6.5-15.5 decreased the number of and partially disrupted transcriptomic sexual identity of female germ cells transgenerationally.
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Affiliation(s)
- Jinhwan Lim
- Department of Environmental and Occupational Health, University of California, Irvine (UCI), Irvine, CA, 92617, USA
| | - Toshihiro Shioda
- Massachusetts General Center for Cancer Research and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Kelli F Malott
- Department of Environmental and Occupational Health, University of California, Irvine (UCI), Irvine, CA, 92617, USA
- Environmental Health Sciences Graduate Program, UCI, Irvine, CA, 92617, USA
| | - Keiko Shioda
- Massachusetts General Center for Cancer Research and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Junko Odajima
- Massachusetts General Center for Cancer Research and Harvard Medical School, Charlestown, MA, 02129, USA
| | | | - Julie Nguyen
- Department of Medicine, UCI, Irvine, CA, 92617, USA
| | | | - Melody Lee
- Department of Medicine, UCI, Irvine, CA, 92617, USA
| | | | | | - Vienna Trinh
- Department of Medicine, UCI, Irvine, CA, 92617, USA
| | | | - Ulrike Luderer
- Department of Environmental and Occupational Health, University of California, Irvine (UCI), Irvine, CA, 92617, USA.
- Department of Developmental and Cell Biology, UCI, Irvine, CA, 92617, USA.
- Department of Medicine, UCI, Irvine, CA, 92617, USA.
- Center for Occupational and Environmental Health, 856 Health Sciences Rd, Suite 3200, Zot 1830, Irvine, CA, 92697, USA.
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11
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Dupré A, Wassmann K. [Cyclin B3: Locking female meiosis to await fertilization]. Med Sci (Paris) 2023; 39:289-292. [PMID: 36943128 DOI: 10.1051/medsci/2023019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Affiliation(s)
- Aude Dupré
- Équipe Mécanismes de la méiose, université Paris-Cité, CNRS, institut Jacques Monod, 75013 Paris, France
| | - Katja Wassmann
- Équipe Mécanismes de la méiose, université Paris-Cité, CNRS, institut Jacques Monod, 75013 Paris, France
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12
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Wassmann K. Separase Control and Cohesin Cleavage in Oocytes: Should I Stay or Should I Go? Cells 2022; 11:3399. [PMID: 36359795 PMCID: PMC9656630 DOI: 10.3390/cells11213399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 10/19/2023] Open
Abstract
The key to gametogenesis is the proper execution of a specialized form of cell division named meiosis. Prior to the meiotic divisions, the recombination of maternal and paternal chromosomes creates new genetic combinations necessary for fitness and adaptation to an ever-changing environment. Two rounds of chromosome segregation -meiosis I and II- have to take place without intermediate S-phase and lead to the creation of haploid gametes harboring only half of the genetic material. Importantly, the segregation patterns of the two divisions are fundamentally different and require adaptation of the mitotic cell cycle machinery to the specificities of meiosis. Separase, the enzyme that cleaves Rec8, a subunit of the cohesin complex constituting the physical connection between sister chromatids, has to be activated twice: once in meiosis I and immediately afterwards, in meiosis II. Rec8 is cleaved on chromosome arms in meiosis I and in the centromere region in meiosis II. This step-wise cohesin removal is essential to generate gametes of the correct ploidy and thus, embryo viability. Hence, separase control and Rec8 cleavage must be perfectly controlled in time and space. Focusing on mammalian oocytes, this review lays out what we know and what we still ignore about this fascinating mechanism.
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Affiliation(s)
- Katja Wassmann
- Institut Jacques Monod, Université Paris Cité, CNRS, 75013 Paris, France
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13
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Li J, Chang HY, Yi ZY, Zhang CH, Sun QY, Qian WP. Transient inhibition of CDK2 activity prevents oocyte meiosis I completion and egg activation in mouse. J Cell Physiol 2022; 237:4317-4325. [PMID: 36161883 DOI: 10.1002/jcp.30885] [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: 04/25/2022] [Revised: 08/25/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022]
Abstract
Mammalian oocytes are arrested at the diplotene stage of prophase I during fetal or postnatal development. It was reported that cyclin-dependent kinases (CDK1) was the sole CDK to drive the resumption of meiosis and CDK2 was dispensable for meiosis progression in mouse oocytes according to the conditional knockout studies. However, a recent study showed that CDK2 activity is essential for meiotic division and gametogenesis by means of gene-directed mutagenesis, which avoids the compensatory activation of other CDKs. Taken the compensatory effect between CDKs after gene knockout, the physiological function of CDK2 activity in oocyte maturation remains unclear. To address this issue, we applied a specific small-molecule inhibitor to restrain CDK2 activity transiently during oocyte meiotic maturation. Surprisingly, transient inhibition of CDK2 activity severely prevented the meiosis I completion although the meiotic resumption was not affected. Then we found that CDK2 activity was required for establishment of normal spindle and chromosome dynamics. Notably, CDK2 inhibition interrupted the anaphase-promoting complex/cyclosome (APC/C)-dependent degradation pathway by maintaining the activation of spindle assembly checkpoint (SAC). Interestingly, CDK2 inhibition prevented the egg activation as well. Overall, our data demonstrate that CDK2 kinase activity is required for proper dynamics of spindle and chromosomes, whose disturbance induces the continuous SAC activation and subsequent inactivation of APC/C activity in oocyte meiosis.
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Affiliation(s)
- Jian Li
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Hao-Ya Chang
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Zi-Yun Yi
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Chun-Hui Zhang
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Qing-Yuan Sun
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Wei-Ping Qian
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China.,Guangdong and Shenzhen Key Laboratory of Reproductive Medicine and Genetics, The Center of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, China
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14
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Das D, Arur S. Regulation of oocyte maturation: Role of conserved ERK signaling. Mol Reprod Dev 2022; 89:353-374. [PMID: 35908193 PMCID: PMC9492652 DOI: 10.1002/mrd.23637] [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: 03/25/2022] [Revised: 07/12/2022] [Accepted: 07/18/2022] [Indexed: 11/11/2022]
Abstract
During oogenesis, oocytes arrest at meiotic prophase I to acquire competencies for resuming meiosis, fertilization, and early embryonic development. Following this arrested period, oocytes resume meiosis in response to species-specific hormones, a process known as oocyte maturation, that precedes ovulation and fertilization. Involvement of endocrine and autocrine/paracrine factors and signaling events during maintenance of prophase I arrest, and resumption of meiosis is an area of active research. Studies in vertebrate and invertebrate model organisms have delineated the molecular determinants and signaling pathways that regulate oocyte maturation. Cell cycle regulators, such as cyclin-dependent kinase (CDK1), polo-like kinase (PLK1), Wee1/Myt1 kinase, and the phosphatase CDC25 play conserved roles during meiotic resumption. Extracellular signal-regulated kinase (ERK), on the other hand, while activated during oocyte maturation in all species, regulates both species-specific, as well as conserved events among different organisms. In this review, we synthesize the general signaling mechanisms and focus on conserved and distinct functions of ERK signaling pathway during oocyte maturation in mammals, non-mammalian vertebrates, and invertebrates such as Drosophila and Caenorhabditis elegans.
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Affiliation(s)
- Debabrata Das
- Department of Genetics, UT MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Swathi Arur
- Department of Genetics, UT MD Anderson Cancer Center, Houston, TX 77030, USA
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15
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Cyclin B3 implements timely vertebrate oocyte arrest for fertilization. Dev Cell 2022; 57:2305-2320.e6. [DOI: 10.1016/j.devcel.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/12/2022] [Accepted: 09/09/2022] [Indexed: 11/23/2022]
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16
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Meng TG, Lei WL, Lu X, Liu XY, Ma XS, Nie XQ, Zhao ZH, Li QN, Huang L, Hou Y, Ouyang YC, Li L, Tang TS, Schatten H, Xie W, Gao SR, Ou XH, Wang ZB, Sun QY. Maternal EHMT2 is essential for homologous chromosome segregation by regulating Cyclin B3 transcription in oocyte meiosis. Int J Biol Sci 2022; 18:4513-4531. [PMID: 35864958 PMCID: PMC9295060 DOI: 10.7150/ijbs.75298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/29/2022] [Indexed: 11/05/2022] Open
Abstract
During oocyte growth, various epigenetic modifications are gradually established, accompanied by accumulation of large amounts of mRNAs and proteins. However, little is known about the relationship between epigenetic modifications and meiotic progression. Here, by using Gdf9-Cre to achieve oocyte-specific ablation of Ehmt2 (Euchromatic-Histone-Lysine-Methyltransferase 2) from the primordial follicle stage, we found that female mutant mice were infertile. Oocyte-specific knockout of Ehmt2 caused failure of homologous chromosome separation independent of persistently activated SAC during the first meiosis. Further studies revealed that lacking maternal Ehmt2 affected the transcriptional level of Ccnb3, while microinjection of exogenous Ccnb3 mRNA could partly rescue the failure of homologous chromosome segregation. Of particular importance was that EHMT2 regulated ccnb3 transcriptions by regulating CTCF binding near ccnb3 gene body in genome in oocytes. In addition, the mRNA level of Ccnb3 significantly decreased in the follicles microinjected with Ctcf siRNA. Therefore, our findings highlight the novel function of maternal EHMT2 on the metaphase I-to-anaphase I transition in mouse oocytes: regulating the transcription of Ccnb3.
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Affiliation(s)
- Tie-Gang Meng
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wen-Long Lei
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xukun Lu
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.,Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xiao-Yu Liu
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200120, China
| | - Xue-Shan Ma
- The Affiliated Tai'an City Central Hospital of Qingdao University, Taian, Shandong, 271000, China
| | - Xiao-Qing Nie
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zheng-Hui Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100101, China
| | - Qian-Nan Li
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lin Huang
- Center for Clinical Medicine Research, The Affiliated Hospital of Southwest Medical University, Luzhou 6460000, China
| | - Yi Hou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Ying-Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Tie-Shan Tang
- State Key Laboratory of Membrane Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100101, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Wei Xie
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.,Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Shao-Rong Gao
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200120, China
| | - Xiang-Hong Ou
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Zhen-Bo Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100101, China
| | - Qing-Yuan Sun
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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17
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Liu S, Yuan X, Gui P, Liu R, Durojaye O, Hill DL, Fu C, Yao X, Dou Z, Liu X. Mad2 promotes Cyclin B2 recruitment to the kinetochore for guiding accurate mitotic checkpoint. EMBO Rep 2022; 23:e54171. [PMID: 35384228 PMCID: PMC9171689 DOI: 10.15252/embr.202154171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 03/08/2022] [Accepted: 03/15/2022] [Indexed: 11/09/2022] Open
Abstract
Accurate mitotic progression relies on the dynamic phosphorylation of multiple substrates by key mitotic kinases. Cyclin-dependent kinase 1 is a master kinase that coordinates mitotic progression and requires its regulatory subunit Cyclin B to ensure full kinase activity and substrate specificity. The function of Cyclin B2, which is a closely related family member of Cyclin B1, remains largely elusive. Here, we show that Mad2 promotes the kinetochore localization of Cyclin B2 and that their interaction at the kinetochores guides accurate chromosome segregation. Our biochemical analyses have characterized the Mad2-Cyclin B2 interaction and delineated a novel Mad2-interacting motif (MIM) on Cyclin B2. The functional importance of the Cyclin B2-Mad2 interaction was demonstrated by real-time imaging in which MIM-deficient mutant Cyclin B2 failed to rescue the chromosomal segregation defects. Taken together, we have delineated a previously undefined function of Cyclin B2 at the kinetochore and have established, in human cells, a mechanism of action by which Mad2 contributes to the spindle checkpoint.
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Affiliation(s)
- Sikai Liu
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Xiao Yuan
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Ping Gui
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Ran Liu
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Olanrewaju Durojaye
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Donald L Hill
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Chuanhai Fu
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Xuebiao Yao
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Zhen Dou
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Xing Liu
- MOE Key Laboratory for Cellular Dynamics and The First Affiliated Hospital, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
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18
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Zahra A, Kerslake R, Kyrou I, Randeva HS, Sisu C, Karteris E. Impact of Environmentally Relevant Concentrations of Bisphenol A (BPA) on the Gene Expression Profile in an In Vitro Model of the Normal Human Ovary. Int J Mol Sci 2022; 23:5334. [PMID: 35628146 PMCID: PMC9141570 DOI: 10.3390/ijms23105334] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/30/2022] [Accepted: 05/03/2022] [Indexed: 12/12/2022] Open
Abstract
Endocrine-disrupting chemicals (EDCs), including the xenoestrogen Bisphenol A (BPA), can interfere with hormonal signalling. Despite increasing reports of adverse health effects associated with exposure to EDCs, there are limited data on the effect of BPA in normal human ovaries. In this paper, we present a detailed analysis of the transcriptomic landscape in normal Human Epithelial Ovarian Cells (HOSEpiC) treated with BPA (10 and 100 nM). Gene expression profiles were determined using high-throughput RNA sequencing, followed by functional analyses using bioinformatics tools. In total, 272 and 454 differentially expressed genes (DEGs) were identified in 10 and 100 nM BPA-treated HOSEpiCs, respectively, compared to untreated controls. Biological pathways included mRNA surveillance pathways, oocyte meiosis, cellular senescence, and transcriptional misregulation in cancer. BPA exposure has a considerable impact on 10 genes: ANAPC2, AURKA, CDK1, CCNA2, CCNB1, PLK1, BUB1, KIF22, PDE3B, and CCNB3, which are also associated with progesterone-mediated oocyte maturation pathways. Future studies should further explore the effects of BPA and its metabolites in the ovaries in health and disease, making use of validated in vitro and in vivo models to generate data that will address existing knowledge gaps in basic biology, hazard characterisation, and risk assessment associated with the use of xenoestrogens such as BPA.
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Affiliation(s)
- Aeman Zahra
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (R.K.)
| | - Rachel Kerslake
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (R.K.)
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (I.K.); (H.S.R.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre for Sport, Exercise and Life Sciences, Research Institute for Health & Wellbeing, Coventry University, Coventry CV1 5FB, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (I.K.); (H.S.R.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre for Sport, Exercise and Life Sciences, Research Institute for Health & Wellbeing, Coventry University, Coventry CV1 5FB, UK
| | - Cristina Sisu
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (R.K.)
| | - Emmanouil Karteris
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (R.K.)
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19
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Fu TY, Wang SH, Lin TY, Shen PC, Chang SC, Lin YH, Chou CJ, Yu YH, Yang KT, Huang CW, Shaw SW, Peng SY. The Exploration of miRNAs From Porcine Fallopian Tube Stem Cells on Porcine Oocytes. Front Vet Sci 2022; 9:869217. [PMID: 35615247 PMCID: PMC9125035 DOI: 10.3389/fvets.2022.869217] [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: 02/04/2022] [Accepted: 04/07/2022] [Indexed: 11/16/2022] Open
Abstract
Fallopian tube is essential to fertilization and embryonic development. Extracellular vesicles (EVs) from Fallopian tube containing biological regulatory factors, such as lipids, proteins and microRNAs (miRNAs) serve as the key role. At present, studies on oocytes from porcine oviduct and components from EVs remain limited. We aim to explore the effect of EVs secreted by porcine fallopian tube stem cells (PFTSCs) on oocyte. When the fifth-generation PFTSCs reached 80–90% of confluency, the pig in vitro maturation medium was utilized, and the conditioned medium collected for oocyte incubations. To realize the functions of EVs, several proteins were used to determine whether extracted EVs were cell-free. Field emission scanning electron microscope and nanoparticle tracking analyzer were used to observe the morphology. By next generation sequencing, 267 miRNAs were identified, and those with higher expression were selected to analyze the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment maps. The selected miR-152-3p, miR-148a-3p, miR-320a-3p, let-7f-5p, and miR-22-3p, were predicted to target Cepb1 gene affecting MAPK pathway. Of the five miRNAs, miR-320a-3p showed significant difference in maturation rate in vitro maturation. The blastocyst rate of pig embryos was also significantly enhanced by adding 50 nM miR-320a-3p. In vitro culture with miR-320a-3p, the blastocyst rate was significantly higher, but the cleavage rate and cell numbers were not. The CM of PFTSCs effectively improves porcine oocyte development. The miRNAs in EVs are sequenced and identified. miR-320a-3p not only helps the maturation, but also increases the blastocyst rates.
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Affiliation(s)
- Tzu-Yen Fu
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Shu-Hsuan Wang
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Tzu-Yi Lin
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Perng-Chih Shen
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Shen-Chang Chang
- Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Pingtung, Taiwan
| | - Yu-Han Lin
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Chih-Jen Chou
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Yu-Hsiang Yu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan, Taiwan
| | - Kuo-Tai Yang
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Chao-Wei Huang
- Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Steven W. Shaw
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan
- Prenatal Cell and Gene Therapy Group, Institute for Women's Health, University College London, London, United Kingdom
- *Correspondence: Steven W. Shaw
| | - Shao-Yu Peng
- Department of Animal Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
- Shao-Yu Peng
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20
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Lu L, Zhang L, Zeng T, Du X, Tao Z, Li G, Zhong S, Wen J, Zhou C, Xu X. Transcriptome analyses of potential regulators of pre- and post-ovulatory follicles in the pigeon ( Columba livia). Reprod Fertil Dev 2022; 34:689-697. [PMID: 35366957 DOI: 10.1071/rd21239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 03/03/2022] [Indexed: 11/23/2022] Open
Abstract
To identify the dominant genes controlling follicular maturation, ovulation and regression for pigeon, we used RNA-seq to explore the gene expression profiles of pre- and post-ovulatory follicles of pigeon. We obtained total of 4.73million (96% of the raw data) high-quality clean reads, which could be aligned with 20282 genes. Gene expression profile analysis identified 1461 differentially expressed genes (DEGs) between the pre- (P4) and post-ovulatory follicles (P5). Of these, 843 genes were upregulated, and 618 genes were down-regulated. Furthermore, many DEGs were significantly enriched in some pathways closely related to follicle maturation, ovulation and regression, such as ECM-receptor interaction, vascular smooth muscle contraction, progesterone-mediated oocyte maturation, phagosome. Importantly, the DGEs in ECM-receptor interaction pathway included COL1A1 , COL1A2 , COL4A1 , COL4A2 , ITGA11 , ITGB3 and SDC3 , in the progesterone-mediated oocyte maturation pathway involved CDK1 , CDC25A , CCNB3 , CDC20 and Plk1 , and in the vascular smooth muscle contraction covered CALD1 , KCNMA1 , KCNMB1 , CACNA1 , ACTA2 , MYH10 , MYL3 , MYL6 , MYL9 , closely related to promoting follicular maturation and ovulation in pre-ovulatory follicles. Moreover, it seems that the lysosomal cathepsin family has a decisive role in the regression of early stage of post-ovulatory follicle. Taken together, these data enrich the research of molecular mechanisms of pigeon follicular activities at the transcriptional level and provide novel insight of breeding-related physiology for birds.
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Affiliation(s)
- Lizhi Lu
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, 310021 Hangzhou, Zhejiang, China
| | - Long Zhang
- Institute of Ecology, Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, 637009 Nanchong, Sichuan, China
| | - Tao Zeng
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, 310021 Hangzhou, Zhejiang, China
| | - Xue Du
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, 310021 Hangzhou, Zhejiang, China
| | - Zhengrong Tao
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, 310021 Hangzhou, Zhejiang, China
| | - Guoqin Li
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, 310021 Hangzhou, Zhejiang, China
| | - Shengliang Zhong
- PingYang XingLiang Pigeon Farming Co. Ltd., 325000 Wenzhou, Zhejiang, China
| | - Jihui Wen
- PingYang AoFeng Pigeon Farming Co. Ltd., 325000 Wenzhou, Zhejiang, China
| | - Caiquan Zhou
- Institute of Ecology, Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, 637009 Nanchong, Sichuan, China
| | - Xiaoqin Xu
- Institute of Ecology, Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, 637009 Nanchong, Sichuan, China
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21
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Chotiner JY, Leu NA, Xu Y, Wang PJ. Recurrent pregnancy loss in mice lacking the X-linked Ccnb3 gene. Biol Reprod 2021; 106:382-384. [PMID: 34850816 DOI: 10.1093/biolre/ioab220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jessica Y Chotiner
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA.,Cell and Molecular Biology Graduate Program, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - N Adrian Leu
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - Yang Xu
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA
| | - P Jeremy Wang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104, USA.,Cell and Molecular Biology Graduate Program, University of Pennsylvania, Philadelphia, PA 19104, USA
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22
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Pauerova T, Radonova L, Horakova A, Knott JG, Anger M. Accumulation of Securin on Spindle During Female Meiosis I. Front Cell Dev Biol 2021; 9:701179. [PMID: 34395431 PMCID: PMC8358270 DOI: 10.3389/fcell.2021.701179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/10/2021] [Indexed: 11/13/2022] Open
Abstract
Chromosome segregation during female meiosis is frequently incorrect with severe consequences including termination of further development or severe disorders, such as Down syndrome. Accurate chromosome segregation requires tight control of a protease called separase, which facilitates the separation of sister chromatids by cohesin cleavage. There are several control mechanisms in place, including the binding of specific protein inhibitor securin, phosphorylation by cyclin-dependent kinase 1 (CDK1), and complex with SGO2 and MAD2 proteins. All these mechanisms restrict the activation of separase for the time when all chromosomes are properly attached to the spindle. In our study, we focused on securin and compared the expression profile of endogenous protein with exogenous securin, which is widely used to study chromosome segregation. We also compared the dynamics of securin proteolysis in meiosis I and meiosis II. Our study revealed that the expression of both endogenous and exogenous securin in oocytes is compartmentalized and that this protein accumulates on the spindle during meiosis I. We believe that this might have a direct impact on the regulation of separase activity in the vicinity of the chromosomes.
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Affiliation(s)
- Tereza Pauerova
- Department of Genetics and Reproduction, Veterinary Research Institute, Brno, Czechia.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
| | - Lenka Radonova
- Department of Genetics and Reproduction, Veterinary Research Institute, Brno, Czechia.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
| | - Adela Horakova
- Department of Genetics and Reproduction, Veterinary Research Institute, Brno, Czechia.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
| | - Jason G Knott
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Martin Anger
- Department of Genetics and Reproduction, Veterinary Research Institute, Brno, Czechia
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23
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Thomas C, Wetherall B, Levasseur MD, Harris RJ, Kerridge ST, Higgins JMG, Davies OR, Madgwick S. A prometaphase mechanism of securin destruction is essential for meiotic progression in mouse oocytes. Nat Commun 2021; 12:4322. [PMID: 34262048 PMCID: PMC8280194 DOI: 10.1038/s41467-021-24554-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 06/24/2021] [Indexed: 11/10/2022] Open
Abstract
Successful cell division relies on the timely removal of key cell cycle proteins such as securin. Securin inhibits separase, which cleaves the cohesin rings holding chromosomes together. Securin must be depleted before anaphase to ensure chromosome segregation occurs with anaphase. Here we find that in meiosis I, mouse oocytes contain an excess of securin over separase. We reveal a mechanism that promotes excess securin destruction in prometaphase I. Importantly, this mechanism relies on two phenylalanine residues within the separase-interacting segment (SIS) of securin that are only exposed when securin is not bound to separase. We suggest that these residues facilitate the removal of non-separase-bound securin ahead of metaphase, as inhibiting this period of destruction by mutating both residues causes the majority of oocytes to arrest in meiosis I. We further propose that cellular securin levels exceed the amount an oocyte is capable of removing in metaphase alone, such that the prometaphase destruction mechanism identified here is essential for correct meiotic progression in mouse oocytes.
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Affiliation(s)
- Christopher Thomas
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK. .,Max Planck Institute for Biophysical Chemistry, Gottingen, Germany.
| | - Benjamin Wetherall
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Mark D Levasseur
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Rebecca J Harris
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Scott T Kerridge
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Jonathan M G Higgins
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Owen R Davies
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Institute of Cell Biology, University of Edinburgh, Michael Swann Building, Max Born Crescent, Edinburgh, UK
| | - Suzanne Madgwick
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.
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24
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Rezaei M, Buckett W, Bareke E, Surti U, Majewski J, Slim R. A protein-truncating mutation in CCNB3 in a patient with recurrent miscarriages and failure of meiosis I. J Med Genet 2021; 59:568-570. [PMID: 34021051 DOI: 10.1136/jmedgenet-2021-107875] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/26/2021] [Accepted: 05/06/2021] [Indexed: 11/03/2022]
Affiliation(s)
- Maryam Rezaei
- Human Genetics, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - William Buckett
- Obstetrics and Gynecology, McGill University Health Centre, Montréal, Québec, Canada
| | - Eric Bareke
- McGill University and Génome Québec Innovation Centre, Montréal, Québec, Canada
| | - Urvashi Surti
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jacek Majewski
- McGill University and Génome Québec Innovation Centre, Montréal, Québec, Canada
| | - Rima Slim
- Human Genetics, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
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25
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Gallardi D, Xue X, Mercier E, Mills T, Lefebvre F, Rise ML, Murray HM. RNA-seq analysis of the mantle transcriptome from Mytilus edulis during a seasonal spawning event in deep and shallow water culture sites on the northeast coast of Newfoundland, Canada. Mar Genomics 2021; 60:100865. [PMID: 33933383 DOI: 10.1016/j.margen.2021.100865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/23/2021] [Accepted: 03/15/2021] [Indexed: 11/29/2022]
Abstract
The blue mussel (Mytilus edulis) has global commercial and ecological importance both in wild and cultured conditions. However there is a qualitative and quantitative lack of knowledge of the molecular mechanisms associated with its reproductive physiology, especially with reference to environmental interactions. Here we initiated a transcriptomic analysis (RNA-sequencing (RNA-seq)) of the mantle from both sexes sampled during a seasonal spawning event and from two culture depths (shallow-5 m; deep- 15 m). Mantle libraries were produced from 3 males and 3 females sampled from each of two shallow sites and two deep sites for a total of 12 replicate male and 12 replicate female libraries (24 total libraries). Overall a total of 2.3 billion raw 100 base reads with an average of 96.5 million reads/library were obtained and assembled into 296,118 transcripts with an average length of 568 bp. Overall, 315 transcripts from male libraries and 25 from female libraries were found to be upregulated in deep water as compared to shallow (edgeR adjusted p value ≤ 0.05). Conversely, 126 transcripts from male libraries and 135 from female libraries were found to be significantly downregulated at the same depth. Thirteen transcripts were selected for qPCR validation based on importance in reproduction, antimicrobial defense and metabolism. Of these, 9 RNA-seq identified transcripts were shown by qPCR to be differentially expressed between groups: 2 were upregulated in deep compared with shallow water (dhx38, mt-co1), 2 were upregulated for female compared with male mantle (pias2, mapkap1) and 6 genes (fndc3a, acbd3, klhl10, ccnb3, armc4, mt-co1) showed to be upregulated in males compared to females. The majority of qPCR studied transcripts were identified as involved in gamete development based on the UniProt database. This study further characterizes the importance of the mantle transcriptome during reproductive activities of M. edulis.
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Affiliation(s)
- Daria Gallardi
- Fisheries and Oceans Canada, 80 East White Hills Road, PO Box 5667, St. John's, NL A1C 5X1, Canada.
| | - Xi Xue
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada
| | - Eloi Mercier
- Canadian Centre for Computational Genomics - Montreal Node, McGill University and Genome Quebec Innovation Center, 740 Dr. Penfield Avenue, Montréal, Québec H3A 0G1, Canada
| | - Terry Mills
- Norlantic Processors Limited, P.O. Box 381, Botwood, NL A0H 1E0, Canada
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics - Montreal Node, McGill University and Genome Quebec Innovation Center, 740 Dr. Penfield Avenue, Montréal, Québec H3A 0G1, Canada
| | - Matthew L Rise
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada
| | - Harry M Murray
- Fisheries and Oceans Canada, 80 East White Hills Road, PO Box 5667, St. John's, NL A1C 5X1, Canada
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26
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Abstract
Separase is a large cysteine protease in eukaryotes and has crucial roles in many cellular processes, especially chromosome segregation during mitosis and meiosis, apoptosis, DNA damage repair, centrosome disengagement and duplication, spindle stabilization and elongation. It dissolves the cohesion between sister chromatids by cleaving one of the subunits of the cohesin ring for chromosome segregation. The activity of separase is tightly controlled at many levels, through direct binding of inhibitory proteins as well as posttranslational modification. Dysregulation of separase activity is linked to cancer and genome instability, making it a target for drug discovery. One of the best-known inhibitors of separase is securin, which has been identified in yeast, plants, and animals. Securin forms a tight complex with separase and potently inhibits its catalytic activity. Recent structures of the separase-securin complex have revealed the molecular mechanism for the inhibitory activity of securin. A segment of securin is bound in the active site of separase, thereby blocking substrate binding. Securin itself is not cleaved by separase as its binding mode is not compatible with catalysis. Securin also has extensive interactions with separase outside the active site, consistent with its function as a chaperone to stabilize this enzyme.
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Affiliation(s)
- Shukun Luo
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Liang Tong
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA.
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27
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Cyclin B3 activates the Anaphase-Promoting Complex/Cyclosome in meiosis and mitosis. PLoS Genet 2020; 16:e1009184. [PMID: 33137813 PMCID: PMC7660922 DOI: 10.1371/journal.pgen.1009184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/12/2020] [Accepted: 10/08/2020] [Indexed: 11/19/2022] Open
Abstract
In mitosis and meiosis, chromosome segregation is triggered by the Anaphase-Promoting Complex/Cyclosome (APC/C), a multi-subunit ubiquitin ligase that targets proteins for degradation, leading to the separation of chromatids. APC/C activation requires phosphorylation of its APC3 and APC1 subunits, which allows the APC/C to bind its co-activator Cdc20. The identity of the kinase(s) responsible for APC/C activation in vivo is unclear. Cyclin B3 (CycB3) is an activator of the Cyclin-Dependent Kinase 1 (Cdk1) that is required for meiotic anaphase in flies, worms and vertebrates. It has been hypothesized that CycB3-Cdk1 may be responsible for APC/C activation in meiosis but this remains to be determined. Using Drosophila, we found that mutations in CycB3 genetically enhance mutations in tws, which encodes the B55 regulatory subunit of Protein Phosphatase 2A (PP2A) known to promote mitotic exit. Females heterozygous for CycB3 and tws loss-of-function alleles lay embryos that arrest in mitotic metaphase in a maternal effect, indicating that CycB3 promotes anaphase in mitosis in addition to meiosis. This metaphase arrest is not due to the Spindle Assembly Checkpoint (SAC) because mutation of mad2 that inactivates the SAC does not rescue the development of embryos from CycB3-/+, tws-/+ females. Moreover, we found that CycB3 promotes APC/C activity and anaphase in cells in culture. We show that CycB3 physically associates with the APC/C, is required for phosphorylation of APC3, and promotes APC/C association with its Cdc20 co-activators Fizzy and Cortex. Our results strongly suggest that CycB3-Cdk1 directly activates the APC/C to promote anaphase in both meiosis and mitosis.
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28
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Li J, Qian WP, Sun QY. Cyclins regulating oocyte meiotic cell cycle progression†. Biol Reprod 2020; 101:878-881. [PMID: 31347666 PMCID: PMC6877757 DOI: 10.1093/biolre/ioz143] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/17/2019] [Accepted: 07/18/2019] [Indexed: 11/30/2022] Open
Abstract
Oocyte meiotic maturation is a vital and final process in oogenesis. Unlike somatic cells, the oocyte needs to undergo two continuous meiotic divisions (meiosis I and meiosis II) to become a haploid gamete. Notably, oocyte meiotic progression includes two rounds of unique meiotic arrest and resumption. The first arrest occurs at the G2 (germinal vesicle) stage and meiosis resumption is stimulated by a gonadotropin surge; the second arrest takes place at the metaphase II stage, the stage from which it is released when fertilization takes place. The maturation-promoting factor, which consists of cyclin B1 (CCNB1) and cyclin-dependent kinase 1 (CDK1), is responsible for regulating meiotic resumption and progression, while CDK1 is the unique CDK that acts as the catalytic subunit of maturation-promoting factor. Recent studies showed that except for cyclin B1, multiple cyclins interact with CDK1 to form complexes, which are involved in the regulation of meiotic progression at different stages. Here, we review and discuss the control of oocyte meiotic progression by cyclins A1, A2, B1, B2, B3, and O.
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Affiliation(s)
- Jian Li
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Wei-Ping Qian
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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29
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Chotiner JY, Wolgemuth DJ, Wang PJ. Functions of cyclins and CDKs in mammalian gametogenesis†. Biol Reprod 2020; 101:591-601. [PMID: 31078132 DOI: 10.1093/biolre/ioz070] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/10/2019] [Accepted: 04/17/2019] [Indexed: 12/13/2022] Open
Abstract
Cyclins and cyclin-dependent kinases (CDKs) are key regulators of the cell cycle. Most of our understanding of their functions has been obtained from studies in single-cell organisms and mitotically proliferating cultured cells. In mammals, there are more than 20 cyclins and 20 CDKs. Although genetic ablation studies in mice have shown that most of these factors are dispensable for viability and fertility, uncovering their functional redundancy, CCNA2, CCNB1, and CDK1 are essential for embryonic development. Cyclin/CDK complexes are known to regulate both mitotic and meiotic cell cycles. While some mechanisms are common to both types of cell divisions, meiosis has unique characteristics and requirements. During meiosis, DNA replication is followed by two successive rounds of cell division. In addition, mammalian germ cells experience a prolonged prophase I in males or a long period of arrest in prophase I in females. Therefore, cyclins and CDKs may have functions in meiosis distinct from their mitotic functions and indeed, meiosis-specific cyclins, CCNA1 and CCNB3, have been identified. Here, we describe recent advances in the field of cyclins and CDKs with a focus on meiosis and early embryogenesis.
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Affiliation(s)
- Jessica Y Chotiner
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
- Cell and Molecular Biology Graduate Program, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Debra J Wolgemuth
- Department of Genetics & Development, Columbia University Medical Center, New York, New York, USA
| | - P Jeremy Wang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
- Cell and Molecular Biology Graduate Program, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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30
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Fatemi N, Salehi N, Pignata L, Palumbo P, Cubellis MV, Ramazanali F, Ray P, Varkiani M, Reyhani-Sabet F, Biglari A, Sparago A, Acurzio B, Palumbo O, Carella M, Riccio A, Totonchi M. Biallelic variant in cyclin B3 is associated with failure of maternal meiosis II and recurrent digynic triploidy. J Med Genet 2020; 58:783-788. [PMID: 32938693 PMCID: PMC8551973 DOI: 10.1136/jmedgenet-2020-106909] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 07/07/2020] [Accepted: 07/27/2020] [Indexed: 12/20/2022]
Abstract
Background Triploidy is one of the most common chromosome abnormalities affecting human gestation and accounts for an important fraction of first-trimester miscarriages. Triploidy has been demonstrated in a few cases of recurrent pregnancy loss (RPL) but its molecular mechanisms are unknown. This study aims to identify the genetic cause of RPL associated with fetus triploidy. Methods We investigated genomic imprinting, genotyped sequence-tagged site (STS) markers and performed exome sequencing in a family including two sisters with RPL. Moreover, we evaluated oocyte maturation in vivo and in vitro and effect of the candidate protein variant in silico. Results While features of hydatidiform mole were excluded, the presence of triploidy of maternal origin was demonstrated in the fetuses. Oocyte maturation was deficient and all the maternally inherited pericentromeric STS alleles were homozygous in the fetuses. A deleterious missense variant (p.V1251D) of the cyclin B3 gene (CCNB3) affecting a residue conserved in placental mammals and located in a region that can interact with the cyclin-dependent kinase 1 or cyclin-dependent kinase 2 cosegregated in homozygosity with RPL. Conclusion Here, we report a family in which a damaging variant in cyclin B3 is associated with the failure of oocyte meiosis II and recurrent fetus triploidy, implicating a rationale for CCNB3 testing in RPL.
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Affiliation(s)
- Nayeralsadat Fatemi
- Department of Genetics and Molecular Medicine, School of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Najmeh Salehi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Laura Pignata
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Università degli Studi della Campania "Luigi Vanvitelli", Caserta, Italy.,Institute of Genetics and Biophysics (IGB) "Adriano Buzzati-Traverso", Consiglio Nazionale delle Ricerche (CNR), Napoli, Italy
| | - Pietro Palumbo
- IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo (FG), Italy
| | | | - Fariba Ramazanali
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Pierre Ray
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences, INSERM 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble F38000, France.,Unité Médicale de génétique de l'infertilité et de diagnostic pré-implantatoire (GI-DPI), Centre Hospitalier Universitaire Grenoble Alpes, Grenoble 38000, France
| | - Maryam Varkiani
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Fakhreddin Reyhani-Sabet
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Alireza Biglari
- Department of Genetics and Molecular Medicine, School of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran
| | - Angela Sparago
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Università degli Studi della Campania "Luigi Vanvitelli", Caserta, Italy
| | - Basilia Acurzio
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Università degli Studi della Campania "Luigi Vanvitelli", Caserta, Italy.,Institute of Genetics and Biophysics (IGB) "Adriano Buzzati-Traverso", Consiglio Nazionale delle Ricerche (CNR), Napoli, Italy
| | - Orazio Palumbo
- IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo (FG), Italy
| | - Massimo Carella
- IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo (FG), Italy
| | - Andrea Riccio
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Università degli Studi della Campania "Luigi Vanvitelli", Caserta, Italy .,Institute of Genetics and Biophysics (IGB) "Adriano Buzzati-Traverso", Consiglio Nazionale delle Ricerche (CNR), Napoli, Italy
| | - Mehdi Totonchi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran .,Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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31
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Kalous J, Jansová D, Šušor A. Role of Cyclin-Dependent Kinase 1 in Translational Regulation in the M-Phase. Cells 2020; 9:cells9071568. [PMID: 32605021 PMCID: PMC7408968 DOI: 10.3390/cells9071568] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/15/2020] [Accepted: 06/24/2020] [Indexed: 12/20/2022] Open
Abstract
Cyclin dependent kinase 1 (CDK1) has been primarily identified as a key cell cycle regulator in both mitosis and meiosis. Recently, an extramitotic function of CDK1 emerged when evidence was found that CDK1 is involved in many cellular events that are essential for cell proliferation and survival. In this review we summarize the involvement of CDK1 in the initiation and elongation steps of protein synthesis in the cell. During its activation, CDK1 influences the initiation of protein synthesis, promotes the activity of specific translational initiation factors and affects the functioning of a subset of elongation factors. Our review provides insights into gene expression regulation during the transcriptionally silent M-phase and describes quantitative and qualitative translational changes based on the extramitotic role of the cell cycle master regulator CDK1 to optimize temporal synthesis of proteins to sustain the division-related processes: mitosis and cytokinesis.
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32
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Ensuring meiotic DNA break formation in the mouse pseudoautosomal region. Nature 2020; 582:426-431. [PMID: 32461690 PMCID: PMC7337327 DOI: 10.1038/s41586-020-2327-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 04/24/2020] [Indexed: 11/09/2022]
Abstract
Sex chromosomes in males of most eutherian species share only a diminutive homologous segment, the pseudoautosomal region (PAR), wherein double-strand break (DSB) formation, pairing, and crossing over must occur for correct meiotic segregation1,2. How cells ensure PAR recombination is unknown. Here we delineate an unexpected dynamic ultrastructure of the PAR and identify controlling cis- and trans-acting factors that make this the hottest area of DSB formation in the male mouse genome. Before break formation, multiple DSB-promoting factors hyper-accumulate in the PAR, its chromosome axes elongate, and the sister chromatids separate. These phenomena are linked to heterochromatic mo-2 minisatellite arrays and require MEI4 and ANKRD31 proteins but not axis components REC8 or HORMAD1. We propose that the repetitive PAR sequence confers unique chromatin and higher order structures crucial for recombination. Chromosome synapsis triggers collapse of the elongated PAR structure and, remarkably, oocytes can be reprogrammed to display spermatocyte-like PAR DSB levels simply by delaying or preventing synapsis. Thus, sexually dimorphic behavior of the PAR rests in part on kinetic differences between the sexes for a race between maturation of PAR structure, DSB formation, and completion of pairing and synapsis. Our findings establish a mechanistic paradigm of sex chromosome recombination during meiosis.
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33
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Keating L, Touati SA, Wassmann K. A PP2A-B56-Centered View on Metaphase-to-Anaphase Transition in Mouse Oocyte Meiosis I. Cells 2020; 9:E390. [PMID: 32046180 PMCID: PMC7072534 DOI: 10.3390/cells9020390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 12/12/2022] Open
Abstract
Meiosis is required to reduce to haploid the diploid genome content of a cell, generating gametes-oocytes and sperm-with the correct number of chromosomes. To achieve this goal, two specialized cell divisions without intermediate S-phase are executed in a time-controlled manner. In mammalian female meiosis, these divisions are error-prone. Human oocytes have an exceptionally high error rate that further increases with age, with significant consequences for human fertility. To understand why errors in chromosome segregation occur at such high rates in oocytes, it is essential to understand the molecular players at work controlling these divisions. In this review, we look at the interplay of kinase and phosphatase activities at the transition from metaphase-to-anaphase for correct segregation of chromosomes. We focus on the activity of PP2A-B56, a key phosphatase for anaphase onset in both mitosis and meiosis. We start by introducing multiple roles PP2A-B56 occupies for progression through mitosis, before laying out whether or not the same principles may apply to the first meiotic division in oocytes, and describing the known meiosis-specific roles of PP2A-B56 and discrepancies with mitotic cell cycle regulation.
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Affiliation(s)
- Leonor Keating
- Mammalian Oocyte Meiosis (MOM) UMR7622, Institut de Biologie Paris Seine, Sorbonne Université, 75005 Paris, France; (L.K.); (S.A.T.)
- CNRS UMR7622 Developmental Biology Lab, Sorbonne Université, 75005 Paris, France
| | - Sandra A. Touati
- Mammalian Oocyte Meiosis (MOM) UMR7622, Institut de Biologie Paris Seine, Sorbonne Université, 75005 Paris, France; (L.K.); (S.A.T.)
- CNRS UMR7622 Developmental Biology Lab, Sorbonne Université, 75005 Paris, France
| | - Katja Wassmann
- Mammalian Oocyte Meiosis (MOM) UMR7622, Institut de Biologie Paris Seine, Sorbonne Université, 75005 Paris, France; (L.K.); (S.A.T.)
- CNRS UMR7622 Developmental Biology Lab, Sorbonne Université, 75005 Paris, France
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34
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Li J, Dong F, Ouyang YC, Sun QY, Qian WP. Overexpression of cyclin A1 promotes meiotic resumption but induces premature chromosome separation in mouse oocyte. J Cell Physiol 2020; 235:7136-7145. [PMID: 32030765 DOI: 10.1002/jcp.29612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 01/22/2020] [Indexed: 01/29/2023]
Abstract
Mammalian cyclin A1 is prominently expressed in testis and essential for meiosis in the male mouse, however, it shows weak expression in ovary, especially during oocyte maturation. To understand why cyclin A1 behaves in this way in the oocyte, we investigated the effect of cyclin A1 overexpression on mouse oocyte meiotic maturation. Our results revealed that cyclin A1 overexpression triggered meiotic resumption even in the presence of germinal vesicle breakdown inhibitor, milrinone. Nevertheless, the cyclin A1-overexpressed oocytes failed to extrude the first polar body but were completely arrested at metaphase I. Consequently, cyclin A1 overexpression destroyed the spindle morphology and chromosome alignment by inducing premature separation of chromosomes and sister chromatids. Therefore, cyclin A1 overexpression will prevent oocyte maturation although it can promote meiotic resumption. All these results show that decreased expression of cyclin A1 in oocytes may have an evolutional significance to keep long-lasting prophase arrest and orderly chromosome separation during oocyte meiotic maturation.
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Affiliation(s)
- Jian Li
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Feng Dong
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ying-Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Wei-Ping Qian
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
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35
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Wen L, Liu Q, Xu J, Liu X, Shi C, Yang Z, Zhang Y, Xu H, Liu J, Yang H, Huang H, Qiao J, Tang F, Chen ZJ. Recent advances in mammalian reproductive biology. SCIENCE CHINA. LIFE SCIENCES 2020; 63:18-58. [PMID: 31813094 DOI: 10.1007/s11427-019-1572-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/22/2019] [Indexed: 01/05/2023]
Abstract
Reproductive biology is a uniquely important topic since it is about germ cells, which are central for transmitting genetic information from generation to generation. In this review, we discuss recent advances in mammalian germ cell development, including preimplantation development, fetal germ cell development and postnatal development of oocytes and sperm. We also discuss the etiologies of female and male infertility and describe the emerging technologies for studying reproductive biology such as gene editing and single-cell technologies.
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Affiliation(s)
- Lu Wen
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Qiang Liu
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Jingjing Xu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Xixi Liu
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Chaoyi Shi
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Zuwei Yang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Yili Zhang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Hong Xu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Jiang Liu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Hui Yang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Research Center for Brain Science and Brain-Inspired Intelligence, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Hefeng Huang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
| | - Jie Qiao
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China.
| | - Fuchou Tang
- Beijing Advanced Innovation Center for Genomics, Department of Obstetrics and Gynecology Third Hospital, College of Life Sciences, Peking University, Beijing, 100871, China.
| | - Zi-Jiang Chen
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, 250021, China.
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36
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Li J, Ouyang YC, Zhang CH, Qian WP, Sun QY. The cyclin B2/CDK1 complex inhibits separase activity in mouse oocyte meiosis I. Development 2019; 146:dev.182519. [PMID: 31704793 DOI: 10.1242/dev.182519] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/04/2019] [Indexed: 01/26/2023]
Abstract
Chromosome segregation is driven by separase, activity of which is inhibited by binding to securin and cyclin B1/CDK1. In meiosis, premature separase activity will induce aneuploidy or abolish chromosome segregation owing to the untimely destruction of cohesin. Recently, we have proved that cyclin B2 can compensate for cyclin B1 in CDK1 activation for the oocyte meiosis G2/M transition. In the present study, we identify an interaction between cyclin B2/CDK1 and separase in mouse oocytes. We find that cyclin B2 degradation is required for separase activation during the metaphase I-anaphase I transition because the presence of stable cyclin B2 leads to failure of homologous chromosome separation and to metaphase I arrest, especially in the simultaneous absence of securin and cyclin B1. Moreover, non-phosphorylatable separase rescues the separation of homologous chromosomes in stable cyclin B2-arrested cyclin B1-null oocytes. Our results indicate that cyclin B2/CDK1 is also responsible for separase inhibition via inhibitory phosphorylation to regulate chromosome separation in oocyte meiosis, which may not occur in other cell types.
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Affiliation(s)
- Jian Li
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, 518036 Shenzhen, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101 Beijing, China
| | - Ying-Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101 Beijing, China
| | - Chun-Hui Zhang
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, 518036 Shenzhen, China
| | - Wei-Ping Qian
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, 518036 Shenzhen, China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, 100101 Beijing, China .,University of Chinese Academy of Sciences, 100101 Beijing, China
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37
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Palmer N, Talib SZA, Kaldis P. Diverse roles for CDK-associated activity during spermatogenesis. FEBS Lett 2019; 593:2925-2949. [PMID: 31566717 PMCID: PMC6900092 DOI: 10.1002/1873-3468.13627] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/20/2019] [Accepted: 09/26/2019] [Indexed: 12/22/2022]
Abstract
The primary function of cyclin-dependent kinases (CDKs) in complex with their activating cyclin partners is to promote mitotic division in somatic cells. This canonical cell cycle-associated activity is also crucial for fertility as it allows the proliferation and differentiation of stem cells within the reproductive organs to generate meiotically competent cells. Intriguingly, several CDKs exhibit meiosis-specific functions and are essential for the completion of the two reductional meiotic divisions required to generate haploid gametes. These meiosis-specific functions are mediated by both known CDK/cyclin complexes and meiosis-specific CDK-regulators and are important for a variety of processes during meiotic prophase. The majority of meiotic defects observed upon deletion of these proteins occur during the extended prophase I of the first meiotic division. Importantly a lack of redundancy is seen within the meiotic arrest phenotypes described for many of these proteins, suggesting intricate layers of cell cycle control are required for normal meiotic progression. Using the process of male germ cell development (spermatogenesis) as a reference, this review seeks to highlight the diverse roles of selected CDKs their activators, and their regulators during gametogenesis.
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Affiliation(s)
- Nathan Palmer
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore.,Department of Biochemistry, National University of Singapore (NUS), Singapore, Singapore
| | - S Zakiah A Talib
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore.,Department of Biochemistry, National University of Singapore (NUS), Singapore, Singapore.,Department of Clinical Sciences, Clinical Research Centre (CRC), Lund University, Malmö, Sweden
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38
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Meng TG, Lei WL, Li J, Wang F, Zhao ZH, Li A, Wang ZB, Sun QY, Ou XH. Degradation of Ccnb3 is essential for maintenance of MII arrest in oocyte. Biochem Biophys Res Commun 2019; 521:265-269. [PMID: 31640856 DOI: 10.1016/j.bbrc.2019.10.124] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 10/15/2019] [Indexed: 12/16/2022]
Abstract
Before fertilization, ovulated mammalian oocytes are arrested at the metaphase of second meiosis (MII), which is maintained by the so-called cytostatic factor (CSF). It is well known that the continuous synthesis and accumulation of cyclin B is critical for maintaining the CSF-mediated MII arrest. Recent studies by us and others have shown that Ccnb3 is required for the metaphase-to-anaphase transition during the first meiosis of mouse oocytes, but whether Ccnb3 plays a role in MII arrest and exit remains unknown. Here, we showed that the protein level of Ccnb3 gradually decreased during oocyte meiotic maturation, and exogenous expression of Ccnb3 led to release of MII arrest, degradation of securin, separation of sister chromatids, extrusion of the second polar body (PB2), and finally entry into interphase. These phenotypes could be rescued by inhibition of Wee1B or CDK2. Our results indicate that Ccnb3 plays a critical regulatory role in MII arrest and exit in mouse oocytes.
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Affiliation(s)
- Tie-Gang Meng
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China; State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wen-Long Lei
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Jian Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Feng Wang
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China; State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zheng-Hui Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Ang Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhen-Bo Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiang-Hong Ou
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China.
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39
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Cyclin B3 is dispensable for mouse spermatogenesis. Chromosoma 2019; 128:473-487. [PMID: 31446450 DOI: 10.1007/s00412-019-00725-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 10/26/2022]
Abstract
Cyclins, as regulatory partners of cyclin-dependent kinases (CDKs), control the switch-like cell cycle transitions that orchestrate orderly duplication and segregation of genomes. Compared to mitosis, relatively little is known about how cyclin-CDK complexes control meiosis, the specialized cell division that generates gametes for sexual production. Mouse cyclin B3 was previously shown to have expression restricted to the beginning of meiosis, making it a candidate to regulate meiotic events. Indeed, female mice lacking cyclin B3 are sterile because oocytes arrest at the metaphase-to-anaphase transition of meiosis I. However, whether cyclin B3 functions during spermatogenesis was untested. Here, we found that males lacking cyclin B3 are fertile and show no detectable defects in spermatogenesis based on histological analysis of seminiferous tubules. Cytological analysis further showed no detectable defects in homologous chromosome synapsis or meiotic progression, and suggested that recombination is initiated and completed efficiently. Moreover, absence of cyclin B3 did not exacerbate previously described meiotic defects in mutants deficient for cyclin E2, suggesting a lack of redundancy between these cyclins. Thus, unlike in females, cyclin B3 is not essential for meiosis in males despite its prominent meiosis-specific expression.
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40
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Bouftas N, Wassmann K. Cycling through mammalian meiosis: B-type cyclins in oocytes. Cell Cycle 2019; 18:1537-1548. [PMID: 31208271 PMCID: PMC6619999 DOI: 10.1080/15384101.2019.1632139] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/17/2019] [Accepted: 05/24/2019] [Indexed: 12/15/2022] Open
Abstract
B-type cyclins in association with Cdk1 mediate key steps of mitosis and meiosis, by phosphorylating a plethora of substrates. Progression through the meiotic cell cycle requires the execution of two cell divisions named meiosis I and II without intervening S-phase, to obtain haploid gametes. These two divisions are highly asymmetric in the large oocyte. Chromosome segregation in meiosis I and sister chromatid segregation in meiosis II requires the sharp, switch-like inactivation of Cdk1 activity, which is brought about by degradation of B-type cyclins and counteracting phosphatases. Importantly and contrary to mitosis, inactivation of Cdk1 must not allow S-phase to take place at exit from meiosis I. Here, we describe recent studies on the regulation of translation and degradation of B-type cyclins in mouse oocytes, and how far their roles are redundant or specific, with a special focus on the recently discovered oocyte-specific role of cyclin B3.
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Affiliation(s)
- Nora Bouftas
- Institut de Biologie Paris Seine (IBPS), Sorbonne Université, Paris, France
- CNRS UMR7622 Developmental Biology Lab, Sorbonne Université, Paris, France
| | - Katja Wassmann
- Institut de Biologie Paris Seine (IBPS), Sorbonne Université, Paris, France
- CNRS UMR7622 Developmental Biology Lab, Sorbonne Université, Paris, France
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41
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Daldello EM, Luong XG, Yang CR, Kuhn J, Conti M. Cyclin B2 is required for progression through meiosis in mouse oocytes. Development 2019; 146:dev172734. [PMID: 30952665 PMCID: PMC6503990 DOI: 10.1242/dev.172734] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 04/01/2019] [Indexed: 12/20/2022]
Abstract
Cyclins associate with cyclin-dependent serine/threonine kinase 1 (CDK1) to generate the M phase-promoting factor (MPF) activity essential for progression through mitosis and meiosis. Although cyclin B1 (CCNB1) is required for embryo development, previous studies concluded that CCNB2 is dispensable for cell cycle progression. Given previous findings of high Ccnb2 mRNA translation rates in prophase-arrested oocytes, we re-evaluated the role of this cyclin during meiosis. Ccnb2-/- oocytes underwent delayed germinal vesicle breakdown and showed defects during the metaphase-to-anaphase transition. This defective maturation was associated with compromised Ccnb1 and Moloney sarcoma oncogene (Mos) mRNA translation, delayed spindle assembly and increased errors in chromosome segregation. Given these defects, a significant percentage of oocytes failed to complete meiosis I because the spindle assembly checkpoint remained active and anaphase-promoting complex/cyclosome function was inhibited. In vivo, CCNB2 depletion caused ovulation of immature oocytes, premature ovarian failure, and compromised female fecundity. These findings demonstrate that CCNB2 is required to assemble sufficient pre-MPF for timely meiosis re-entry and progression. Although endogenous cyclins cannot compensate, overexpression of CCNB1/2 rescues the meiotic phenotypes, indicating similar molecular properties but divergent modes of regulation of these cyclins.
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Affiliation(s)
- Enrico Maria Daldello
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Xuan G Luong
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Cai-Rong Yang
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Jonathan Kuhn
- Cell and Tissue Biology Department, University of California, San Francisco, CA 94143, USA
| | - Marco Conti
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
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Li Y, Wang L, Zhang L, He Z, Feng G, Sun H, Wang J, Li Z, Liu C, Han J, Mao J, Li P, Yuan X, Jiang L, Zhang Y, Zhou Q, Li W. Cyclin B3 is required for metaphase to anaphase transition in oocyte meiosis I. J Cell Biol 2019; 218:1553-1563. [PMID: 30770433 PMCID: PMC6504906 DOI: 10.1083/jcb.201808088] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 12/18/2018] [Accepted: 02/07/2019] [Indexed: 12/20/2022] Open
Abstract
Meiosis with a single round of DNA replication and two successive rounds of chromosome segregation requires specific cyclins associated with cyclin-dependent kinases (CDKs) to ensure its fidelity. But how cyclins control the distinctive meiosis is still largely unknown. In this study, we explored the role of cyclin B3 in female meiosis by generating Ccnb3 mutant mice via CRISPR/Cas9. Ccnb3 mutant oocytes characteristically arrested at metaphase I (MetI) with normal spindle assembly and lacked enough anaphase-promoting complex/cyclosome (APC/C) activity, which is spindle assembly checkpoint (SAC) independent, to initiate anaphase I (AnaI). Securin siRNA or CDK1 inhibitor supplements rescued the MetI arrest. Furthermore, CCNB3 directly interacts with CDK1 to exert kinase function. Besides, the MetI arrest oocytes had normal development after intracytoplasmic sperm injection (ICSI) or parthenogenetic activation (PA), along with releasing the sister chromatids, which implies that Ccnb3 exclusively functioned in meiosis I, rather than meiosis II. Our study sheds light on the specific cell cycle control of cyclins in meiosis.
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Affiliation(s)
- Yufei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Leyun Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Linlin Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhengquan He
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Guihai Feng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Hao Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jiaqiang Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Zhikun Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Chao Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jiabao Han
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Junjie Mao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Pengcheng Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,College of Life Science, Northeast Agricultural University of China, Harbin, China
| | - Xuewei Yuan
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,College of Life Science, Northeast Agricultural University of China, Harbin, China
| | - Liyuan Jiang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,College of Life Science, Northeast Agricultural University of China, Harbin, China
| | - Ying Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China .,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China .,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China .,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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