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Mihalas BP, Marston AL, Wu LE, Gilchrist RB. Reproductive Ageing: Metabolic contribution to age-related chromosome missegregation in mammalian oocytes. Reproduction 2024; 168:e230510. [PMID: 38718822 PMCID: PMC11301428 DOI: 10.1530/rep-23-0510] [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: 12/28/2023] [Accepted: 05/07/2024] [Indexed: 06/29/2024]
Abstract
In brief Chromosome missegregation and declining energy metabolism are considered to be unrelated features of oocyte ageing that contribute to poor reproductive outcomes. Given the bioenergetic cost of chromosome segregation, we propose here that altered energy metabolism during ageing may be an underlying cause of age-related chromosome missegregation and aneuploidy. Abstract Advanced reproductive age in women is a major cause of infertility, miscarriage and congenital abnormalities. This is principally caused by a decrease in oocyte quality and developmental competence with age. Oocyte ageing is characterised by an increase in chromosome missegregation and aneuploidy. However, the underlying mechanisms of age-related aneuploidy have not been fully elucidated and are still under active investigation. In addition to chromosome missegregation, oocyte ageing is also accompanied by metabolic dysfunction. In this review, we integrate old and new perspectives on oocyte ageing, chromosome segregation and metabolism in mammalian oocytes and make direct links between these processes. We consider age-related alterations to chromosome segregation machinery, including the loss of cohesion, microtubule stability and the integrity of the spindle assembly checkpoint. We focus on how metabolic dysfunction in the ageing oocyte disrupts chromosome segregation machinery to contribute to and exacerbate age-related aneuploidy. More specifically, we discuss how mitochondrial function, ATP production and the generation of free radicals are altered during ageing. We also explore recent developments in oocyte metabolic ageing, including altered redox reactions (NAD+ metabolism) and the interactions between oocytes and their somatic nurse cells. Throughout the review, we integrate the mechanisms by which changes in oocyte metabolism influence age-related chromosome missegregation.
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Affiliation(s)
- Bettina P Mihalas
- Oocyte Biology Research Unit, Discipline of Women’s Health, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Kensington, Australia
| | - Adele L Marston
- Wellcome Centre for Cell Biology, Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Lindsay E Wu
- School of Biomedical Sciences, Faculty of Medicine and Health, UNSW Sydney, Kensington, Australia
| | - Robert B Gilchrist
- Oocyte Biology Research Unit, Discipline of Women’s Health, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Kensington, Australia
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2
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Liu B, He Y, Wu X, Lin Z, Ma J, Qiu Y, Xiang Y, Kong F, Lai F, Pal M, Wang P, Ming J, Zhang B, Wang Q, Wu J, Xia W, Shen W, Na J, Torres-Padilla ME, Li J, Xie W. Mapping putative enhancers in mouse oocytes and early embryos reveals TCF3/12 as key folliculogenesis regulators. Nat Cell Biol 2024; 26:962-974. [PMID: 38839978 DOI: 10.1038/s41556-024-01422-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/11/2024] [Indexed: 06/07/2024]
Abstract
Dynamic epigenomic reprogramming occurs during mammalian oocyte maturation and early development. However, the underlying transcription circuitry remains poorly characterized. By mapping cis-regulatory elements using H3K27ac, we identified putative enhancers in mouse oocytes and early embryos distinct from those in adult tissues, enabling global transitions of regulatory landscapes around fertilization and implantation. Gene deserts harbour prevalent putative enhancers in fully grown oocytes linked to oocyte-specific genes and repeat activation. Embryo-specific enhancers are primed before zygotic genome activation and are restricted by oocyte-inherited H3K27me3. Putative enhancers in oocytes often manifest H3K4me3, bidirectional transcription, Pol II binding and can drive transcription in STARR-seq and a reporter assay. Finally, motif analysis of these elements identified crucial regulators of oogenesis, TCF3 and TCF12, the deficiency of which impairs activation of key oocyte genes and folliculogenesis. These data reveal distinctive regulatory landscapes and their interacting transcription factors that underpin the development of mammalian oocytes and early embryos.
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Affiliation(s)
- Bofeng Liu
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yuanlin He
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
- Innovation Center of Suzhou Nanjing Medical University, Suzhou, China
| | - Xiaotong Wu
- Tsinghua-Peking Center for Life Sciences, Beijing, China
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua University, Beijing, China
| | - Zili Lin
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Jing Ma
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yuexin Qiu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
| | - Yunlong Xiang
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Feng Kong
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Fangnong Lai
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Mrinmoy Pal
- Institute of Epigenetics and Stem Cells (IES), Helmholtz Zentrum München, Munich, Germany
| | - Peizhe Wang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, China
| | - Jia Ming
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, China
| | - Bingjie Zhang
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Qiujun Wang
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Jingyi Wu
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Weikun Xia
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Weimin Shen
- Tsinghua-Peking Center for Life Sciences, Beijing, China
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua University, Beijing, China
| | - Jie Na
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, China
| | | | - Jing Li
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China.
- Innovation Center of Suzhou Nanjing Medical University, Suzhou, China.
| | - Wei Xie
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, New Cornerstone Science Laboratory, School of Life Sciences, Tsinghua University, Beijing, China.
- Tsinghua-Peking Center for Life Sciences, Beijing, China.
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3
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Huang W, Li X, Yang H, Huang H. The impact of maternal age on aneuploidy in oocytes: Reproductive consequences, molecular mechanisms, and future directions. Ageing Res Rev 2024; 97:102292. [PMID: 38582380 DOI: 10.1016/j.arr.2024.102292] [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: 11/26/2023] [Revised: 03/12/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Age-related aneuploidy in human oocytes is a major factor contributing to decreased fertility and adverse reproductive outcomes. As females age, their oocytes are more prone to meiotic chromosome segregation errors, leading primarily to aneuploidy. Elevated aneuploidy rates have also been observed in oocytes from very young, prepubertal conceptions. A key barrier to developing effective treatments for age-related oocyte aneuploidy is our incomplete understanding of the molecular mechanisms involved. The challenge is becoming increasingly critical as more people choose to delay childbearing, a trend that has significant societal implications. In this review, we summarize current knowledge regarding the process of oocyte meiosis and folliculogenesis, highlighting the relationship between age and chromosomal aberrations in oocytes and embryos, and integrate proposed mechanisms of age-related meiotic disturbances across structural, protein, and genomic levels. Our goal is to spur new research directions and therapeutic avenues.
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Affiliation(s)
- Weiwei Huang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China; Shanghai Key Laboratory of Reproduction and Development, Shanghai, China; Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences (No. 2019RU056), Shanghai, China
| | - Xinyuan Li
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China; Shanghai Key Laboratory of Reproduction and Development, Shanghai, China; Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences (No. 2019RU056), Shanghai, China
| | - Hongbo Yang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China; Shanghai Key Laboratory of Reproduction and Development, Shanghai, China; Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences (No. 2019RU056), Shanghai, China.
| | - Hefeng Huang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China; Shanghai Key Laboratory of Reproduction and Development, Shanghai, China; Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences (No. 2019RU056), Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China; Department of Obstetrics and Gynecology, International Institutes of Medicine, the Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, China; Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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4
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Li Q, Zheng T, Chen J, Li B, Zhang Q, Yang S, Shao J, Guan W, Zhang S. Exploring melatonin's multifaceted role in female reproductive health: From follicular development to lactation and its therapeutic potential in obstetric syndromes. J Adv Res 2024:S2090-1232(24)00168-1. [PMID: 38692429 DOI: 10.1016/j.jare.2024.04.025] [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: 03/27/2024] [Accepted: 04/25/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND Melatonin is mainly secreted by the pineal gland during darkness and regulates biological rhythms through its receptors in the suprachiasmatic nucleus of the hypothalamus. In addition, it also plays a role in the reproductive system by affecting the function of the hypothalamic-pituitary-gonadal axis, and by acting as a free radical scavenger thus contributing to the maintenance of the optimal physiological state of the gonads. Besides, melatonin can freely cross the placenta to influence fetal development. However, there is still a lack of overall understanding of the role of melatonin in the reproductive cycle of female mammals. AIM OF REVIEW Here we focus the role of melatonin in female reproduction from follicular development to delivery as well as the relationship between melatonin and lactation. We further summarize the potential role of melatonin in the treatment of preeclampsia, polycystic ovary syndrome, endometriosis, and ovarian aging. KEY SCIENTIFIC CONCEPTS OF REVIEW Understanding the physiological role of melatonin in female reproductive processes will contribute to the advancement of human fertility and reproductive medicine research.
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Affiliation(s)
- Qihui Li
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Tenghui Zheng
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jiaming Chen
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Baofeng Li
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Qianzi Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Siwang Yang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jiayuan Shao
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
| | - Wutai Guan
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
| | - Shihai Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China.
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5
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Ermisch AF, Wood JR. Regulation of Oocyte mRNA Metabolism: A Key Determinant of Oocyte Developmental Competence. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2024; 238:23-46. [PMID: 39030353 DOI: 10.1007/978-3-031-55163-5_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
The regulation of mRNA transcription and translation is uncoupled during oogenesis. The reason for this uncoupling is two-fold. Chromatin is only accessible to the transcriptional machinery during the growth phase as it condenses prior to resumption of meiosis to ensure faithful segregation of chromosomes during meiotic maturation. Thus, transcription rates are high during this time period in order to produce all of the transcripts needed for meiosis, fertilization, and embryo cleavage until the newly formed embryonic genome becomes transcriptionally active. To ensure appropriate timing of key developmental milestones including chromatin condensation, resumption of meiosis, segregation of chromosomes, and polar body extrusion, the translation of protein from transcripts synthesized during oocyte growth must be temporally regulated. This is achieved by the regulation of mRNA interaction with RNA binding proteins and shortening and lengthening of the poly(A) tail. This chapter details the essential factors that regulate the dynamic changes in mRNA synthesis, storage, translation, and degradation during oocyte growth and maturation.
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Affiliation(s)
- Alison F Ermisch
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jennifer R Wood
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA.
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6
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Liang J, Huang F, Song Z, Tang R, Zhang P, Chen R. Impact of NAD+ metabolism on ovarian aging. Immun Ageing 2023; 20:70. [PMID: 38041117 PMCID: PMC10693113 DOI: 10.1186/s12979-023-00398-w] [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: 08/07/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023]
Abstract
Nicotinamide adenine dinucleotide (NAD+), a crucial coenzyme in cellular redox reactions, is closely associated with age-related functional degeneration and metabolic diseases. NAD exerts direct and indirect influences on many crucial cellular functions, including metabolic pathways, DNA repair, chromatin remodeling, cellular senescence, and immune cell functionality. These cellular processes and functions are essential for maintaining tissue and metabolic homeostasis, as well as healthy aging. Causality has been elucidated between a decline in NAD levels and multiple age-related diseases, which has been confirmed by various strategies aimed at increasing NAD levels in the preclinical setting. Ovarian aging is recognized as a natural process characterized by a decline in follicle number and function, resulting in decreased estrogen production and menopause. In this regard, it is necessary to address the many factors involved in this complicated procedure, which could improve fertility in women of advanced maternal age. Concerning the decrease in NAD+ levels as ovarian aging progresses, promising and exciting results are presented for strategies using NAD+ precursors to promote NAD+ biosynthesis, which could substantially improve oocyte quality and alleviate ovarian aging. Hence, to acquire further insights into NAD+ metabolism and biology, this review aims to probe the factors affecting ovarian aging, the characteristics of NAD+ precursors, and the current research status of NAD+ supplementation in ovarian aging. Specifically, by gaining a comprehensive understanding of these aspects, we are optimistic about the prominent progress that will be made in both research and therapy related to ovarian aging.
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Affiliation(s)
- Jinghui Liang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, 100730, China
| | - Feiling Huang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, 100730, China
| | - Zhaoqi Song
- School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian, China
| | - Ruiyi Tang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, 100730, China
| | - Peng Zhang
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Rare Disease Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
| | - Rong Chen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, 100730, China.
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7
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Ragusa D, Vagnarelli P. Contribution of histone variants to aneuploidy: a cancer perspective. Front Genet 2023; 14:1290903. [PMID: 38075697 PMCID: PMC10702394 DOI: 10.3389/fgene.2023.1290903] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/27/2023] [Indexed: 07/29/2024] Open
Abstract
Histone variants, which generally differ in few amino acid residues, can replace core histones (H1, H2A, H2B, and H3) to confer specific structural and functional features to regulate cellular functions. In addition to their role in DNA packaging, histones modulate key processes such as gene expression regulation and chromosome segregation, which are frequently dysregulated in cancer cells. During the years, histones variants have gained significant attention as gatekeepers of chromosome stability, raising interest in understanding how structural and functional alterations can contribute to tumourigenesis. Beside the well-established role of the histone H3 variant CENP-A in centromere specification and maintenance, a growing body of literature has described mutations, aberrant expression patterns and post-translational modifications of a variety of histone variants in several cancers, also coining the term "oncohistones." At the molecular level, mechanistic studies have been dissecting the biological mechanisms behind histones and missegregation events, with the potential to uncover novel clinically-relevant targets. In this review, we focus on the current understanding and highlight knowledge gaps of the contribution of histone variants to aneuploidy, and we have compiled a database (HistoPloidyDB) of histone gene alterations linked to aneuploidy in cancers of the The Cancer Genome Atlas project.
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Affiliation(s)
- Denise Ragusa
- College of Health, Medicine and Life Sciences, Department of Life Sciences, Brunel University London, London, United Kingdom
| | - Paola Vagnarelli
- College of Health, Medicine and Life Sciences, Department of Life Sciences, Brunel University London, London, United Kingdom
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8
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He Y, Gao M, Yang W, Sun S, Wang Q, Gu L. Melatonin ameliorates histone modification disorders in mammalian aged oocytes by neutralizing the alkylation of HDAC1. Free Radic Biol Med 2023; 208:361-370. [PMID: 37625658 DOI: 10.1016/j.freeradbiomed.2023.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/20/2023] [Accepted: 08/23/2023] [Indexed: 08/27/2023]
Abstract
Aging-associated histone modification changes in oocytes have been sporadically reported, but the underlying mechanisms remain elusive. Here, we systematically characterize multiple histone modifications in oocytes during aging. We find that maternal and postovulatory aging markedly alter the status of histone modifications, specifically H4K12ac and H3K4me3, in both mouse and porcine oocytes. Meanwhile, we identify a substantial reduction in HDAC1 (histone deacetylase 1) protein in aged oocytes, which contributes to the changes in H4K12ac and H3K4me3. Moreover, by employing methylglyoxal (MG) and site-directed mutagenesis, we demonstrate that the elevated reactive carbonyl species (RCS) level induces HDAC1 degradation, likely through attacking the cysteine residues, thereby influences histone modification state. Importantly, supplementation of melatonin not only prevents the loss of HDAC1 protein, but also partially corrects the H4K12ac and H3K4me3 status in aged oocytes. To sum up, this study established the link between redox disequilibrium and histone modification alterations during mammalian oocyte aging.
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Affiliation(s)
- Yongfu He
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Nanjing, 211166, China
| | - Ming Gao
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Weizheng Yang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Nanjing, 211166, China
| | - Shaochen Sun
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Nanjing, 211166, China.
| | - Ling Gu
- College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, China.
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9
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Sulyok E, Farkas B, Bodis J. Pathomechanisms of Prenatally Programmed Adult Diseases. Antioxidants (Basel) 2023; 12:1354. [PMID: 37507894 PMCID: PMC10376205 DOI: 10.3390/antiox12071354] [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: 05/26/2023] [Revised: 06/22/2023] [Accepted: 06/25/2023] [Indexed: 07/30/2023] Open
Abstract
Based on epidemiological observations Barker et al. put forward the hypothesis/concept that an adverse intrauterine environment (involving an insufficient nutrient supply, chronic hypoxia, stress, and toxic substances) is an important risk factor for the development of chronic diseases later in life. The fetus responds to the unfavorable environment with adaptive reactions, which ensure survival in the short run, but at the expense of initiating pathological processes leading to adult diseases. In this review, the major mechanisms (including telomere dysfunction, epigenetic modifications, and cardiovascular-renal-endocrine-metabolic reactions) will be outlined, with a particular emphasis on the role of oxidative stress in the fetal origin of adult diseases.
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Affiliation(s)
- Endre Sulyok
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, 7624 Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, 7624 Pécs, Hungary
| | - Balint Farkas
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, 7624 Pécs, Hungary
- Department of Obstetrics and Gynecology, School of Medicine, University of Pécs, 7624 Pécs, Hungary
| | - Jozsef Bodis
- National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, 7624 Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, 7624 Pécs, Hungary
- Department of Obstetrics and Gynecology, School of Medicine, University of Pécs, 7624 Pécs, Hungary
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10
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Latham KE. Preimplantation embryo gene expression: 56 years of discovery, and counting. Mol Reprod Dev 2023; 90:169-200. [PMID: 36812478 DOI: 10.1002/mrd.23676] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/23/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
The biology of preimplantation embryo gene expression began 56 years ago with studies of the effects of protein synthesis inhibition and discovery of changes in embryo metabolism and related enzyme activities. The field accelerated rapidly with the emergence of embryo culture systems and progressively evolving methodologies that have allowed early questions to be re-addressed in new ways and in greater detail, leading to deeper understanding and progressively more targeted studies to discover ever more fine details. The advent of technologies for assisted reproduction, preimplantation genetic testing, stem cell manipulations, artificial gametes, and genetic manipulation, particularly in experimental animal models and livestock species, has further elevated the desire to understand preimplantation development in greater detail. The questions that drove enquiry from the earliest years of the field remain drivers of enquiry today. Our understanding of the crucial roles of oocyte-expressed RNA and proteins in early embryos, temporal patterns of embryonic gene expression, and mechanisms controlling embryonic gene expression has increased exponentially over the past five and a half decades as new analytical methods emerged. This review combines early and recent discoveries on gene regulation and expression in mature oocytes and preimplantation stage embryos to provide a comprehensive understanding of preimplantation embryo biology and to anticipate exciting future advances that will build upon and extend what has been discovered so far.
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Affiliation(s)
- Keith E Latham
- Department of Animal Science, Michigan State University, East Lansing, Michigan, USA.,Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA.,Reproductive and Developmental Sciences Program, Michigan State University, East Lansing, Michigan, USA
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11
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Wang J, Sun X, Yang Z, Li S, Wang Y, Ren R, Liu Z, Yu D. Epigenetic regulation in premature ovarian failure: A literature review. Front Physiol 2023; 13:998424. [PMID: 36685174 PMCID: PMC9846267 DOI: 10.3389/fphys.2022.998424] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 12/14/2022] [Indexed: 01/05/2023] Open
Abstract
Premature ovarian failure (POF), or premature ovarian insufficiency (POI), is a multifactorial and heterogeneous disease characterized by amenorrhea, decreased estrogen levels and increased female gonadotropin levels. The incidence of POF is increasing annually, and POF has become one of the main causes of infertility in women of childbearing age. The etiology and pathogenesis of POF are complex and have not yet been clearly elucidated. In addition to genetic factors, an increasing number of studies have revealed that epigenetic changes play an important role in the occurrence and development of POF. However, we found that very few papers have summarized epigenetic variations in POF, and a systematic analysis of this topic is therefore necessary. In this article, by reviewing and analyzing the most relevant literature in this research field, we expound on the relationship between DNA methylation, histone modification and non-coding RNA expression and the development of POF. We also analyzed how environmental factors affect POF through epigenetic modulation. Additionally, we discuss potential epigenetic biomarkers and epigenetic treatment targets for POF. We anticipate that our paper may provide new therapeutic clues for improving ovarian function and maintaining fertility in POF patients.
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Affiliation(s)
- Jing Wang
- Department of Reproductive Medicine, Department of Prenatal Diagnosis, Changchun, China
| | | | | | - Sijie Li
- Department of Breast Surgery, Changchun, China
| | - Yufeng Wang
- Public Research Platform, The First Hospital of Jilin University, Jilin, China
| | - Ruoxue Ren
- Public Research Platform, The First Hospital of Jilin University, Jilin, China
| | - Ziyue Liu
- Public Research Platform, The First Hospital of Jilin University, Jilin, China
| | - Dehai Yu
- Public Research Platform, The First Hospital of Jilin University, Jilin, China,*Correspondence: Dehai Yu,
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12
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Charalambous C, Webster A, Schuh M. Aneuploidy in mammalian oocytes and the impact of maternal ageing. Nat Rev Mol Cell Biol 2023; 24:27-44. [PMID: 36068367 DOI: 10.1038/s41580-022-00517-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2022] [Indexed: 11/09/2022]
Abstract
During fertilization, the egg and the sperm are supposed to contribute precisely one copy of each chromosome to the embryo. However, human eggs frequently contain an incorrect number of chromosomes - a condition termed aneuploidy, which is much more prevalent in eggs than in either sperm or in most somatic cells. In turn, aneuploidy in eggs is a leading cause of infertility, miscarriage and congenital syndromes. Aneuploidy arises as a consequence of aberrant meiosis during egg development from its progenitor cell, the oocyte. In human oocytes, chromosomes often segregate incorrectly. Chromosome segregation errors increase in women from their mid-thirties, leading to even higher levels of aneuploidy in eggs from women of advanced maternal age, ultimately causing age-related infertility. Here, we cover the two main areas that contribute to aneuploidy: (1) factors that influence the fidelity of chromosome segregation in eggs of women from all ages and (2) factors that change in response to reproductive ageing. Recent discoveries reveal new error-causing pathways and present a framework for therapeutic strategies to extend the span of female fertility.
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Affiliation(s)
- Chloe Charalambous
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Alexandre Webster
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Melina Schuh
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.
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13
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Qu J, Wang Q, Niu H, Sun X, Ji D, Li Y. Melatonin protects oocytes from cadmium exposure-induced meiosis defects by changing epigenetic modification and enhancing mitochondrial morphology in the mouse. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114311. [PMID: 36410142 DOI: 10.1016/j.ecoenv.2022.114311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/12/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
Cadmium (Cd) is one major environmental pollutant that can cause detrimental impacts on human as well as animal reproductive systems as a result of oxidative stress. It is widely acknowledged that melatonin secreted principally by the pineal gland is not only a natural potent antioxidant but also a free radical scavenger, whereas concerning how to alleviate the toxic effects of Cd on oocyte maturation remains elusive. In this investigation, it was the first time to explore the protective effects and potential mechanism of melatonin on meiotic maturation of mouse oocytes exposed to Cd in vitro medium. We found that Cd exerts adverse effects on meiotic maturation progression by disrupting the normal function of mitochondrion combined with the aberrant mitochondrial distribution and decreased membrane potential and altering epigenetic modification, including H3K9me2 and H3K4me2. Additionally, it was observed that Cd exposure disrupted the morphology of spindle organization and caused chromosome misalignment, which might be through changing the level of acetylated tubulin, whereas melatonin administration alleviated the toxic impacts of Cd on oocytes. Furthermore, the mitochondrial morphology-related genes mRNA expression and protein expression of autophagy-related genes was also investigated. The results suggested that melatonin supplementation significantly altered the mRNA expression of mitochondrial dynamics-related genes, rather than the expression of mitophagy-related proteins. Taken together, our results validated that melatonin administration has a certain protective impact against oocytes meiosis maturation defects induced by cadmium through changing epigenetic modification and enhancing mitochondrial morphology rather than mitophagy.
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Affiliation(s)
- Jingwen Qu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; The department of Animal and Veterinary Science, University of Vermont, Burlington, VT 05405, USA.
| | - Qiang Wang
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Haoyuan Niu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Xiaomei Sun
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Dejun Ji
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Yongjun Li
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
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14
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Sun H, Sun G, Zhang H, An H, Guo Y, Ge J, Han L, Zhu S, Tang S, Li C, Xu C, Guo X, Wang Q. Proteomic Profiling Reveals the Molecular Control of Oocyte Maturation. Mol Cell Proteomics 2022; 22:100481. [PMID: 36496143 PMCID: PMC9823227 DOI: 10.1016/j.mcpro.2022.100481] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/31/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022] Open
Abstract
Meiotic maturation is an intricate and precisely regulated process orchestrated by various pathways and numerous proteins. However, little is known about the proteome landscape during oocytes maturation. Here, we obtained the temporal proteomic profiles of mouse oocytes during in vivo maturation. We successfully quantified 4694 proteins from 4500 oocytes in three key stages (germinal vesicle, germinal vesicle breakdown, and metaphase II). In particular, we discovered the novel proteomic features during oocyte maturation, such as the active Skp1-Cullin-Fbox pathway and an increase in mRNA decay-related proteins. Using functional approaches, we further identified the key factors controlling the histone acetylation state in oocytes and the vital proteins modulating meiotic cell cycle. Taken together, our data serve as a broad resource on the dynamics occurring in oocyte proteome and provide important knowledge to better understand the molecular mechanisms during germ cell development.
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Affiliation(s)
- Hongzheng Sun
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Guangyi Sun
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Haotian Zhang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Huiqing An
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Yueshuai Guo
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Juan Ge
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Longsen Han
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Shuai Zhu
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Shoubin Tang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Congyang Li
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Chen Xu
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China; Department of Histology and Embryology, Nanjing Medical University, Nanjing, China.
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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15
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Martin JH, Nixon B, Cafe SL, Aitken RJ, Bromfield EG, Lord T. OXIDATIVE STRESS AND REPRODUCTIVE FUNCTION: Oxidative stress and in vitro ageing of the post-ovulatory oocyte: an update on recent advances in the field. Reproduction 2022; 164:F109-F124. [PMID: 36190194 DOI: 10.1530/rep-22-0206] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/03/2022] [Indexed: 11/09/2022]
Abstract
In brief Post-ovulatory ageing of oocytes leads to poor oocyte and embryo quality as well as abnormalities in offspring. This review provides an update on the contributions of oxidative stress to this process and discusses the current literature surrounding the use of antioxidant media to delay post-ovulatory oocyte ageing. Abstract Following ovulation, the metaphase II stage oocyte has a limited functional lifespan before succumbing to a process known as post-ovulatory oocyte ageing. This progressive demise occurs both in vivo and in vitro and is accompanied by a deterioration in oocyte quality, leading to a well-defined sequelae of reduced fertilisation rates, poor embryo quality, post-implantation errors, and abnormalities in the offspring. Although the physiological consequences of post-ovulatory oocyte ageing have largely been characterised, less is known regarding the molecular mechanisms that drive this process. This review presents an update on the established relationships between the biochemical changes exhibited by the ageing oocyte and the myriad of symptoms associated with the ageing phenotype. In doing so, we consider the molecular events that are potentially involved in orchestrating post-ovulatory ageing with a particular focus on the role of oxidative stress. We highlight the mounting evidence that oxidative stress acts as an initiator for a cascade of events that create the aged oocyte phenotype. Specifically, oxidative stress has the capacity to disrupt mitochondrial function and directly damage multiple intracellular components of the oocyte such as lipids, proteins, and DNA. Finally, this review addresses emerging strategies for delaying post-ovulatory oocyte ageing with emphasis placed on the promise afforded by the use of selected antioxidants to guide the development of media tailored for the preservation of oocyte integrity during in vitro fertilisation procedures.
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Affiliation(s)
- Jacinta H Martin
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute Program in Infertility and Reproduction, New Lambton Heights, New South Wales, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute Program in Infertility and Reproduction, New Lambton Heights, New South Wales, Australia
| | - Shenae L Cafe
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute Program in Infertility and Reproduction, New Lambton Heights, New South Wales, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute Program in Infertility and Reproduction, New Lambton Heights, New South Wales, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute Program in Infertility and Reproduction, New Lambton Heights, New South Wales, Australia
| | - Tessa Lord
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute Program in Infertility and Reproduction, New Lambton Heights, New South Wales, Australia
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16
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Qu J, Wang Q, Sun X, Li Y. The environment and female reproduction: Potential mechanism of cadmium poisoning to the growth and development of ovarian follicle. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114029. [PMID: 36055045 DOI: 10.1016/j.ecoenv.2022.114029] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Cadmium (Cd) is ubiquitous in our environment and can easily bioaccumulate into the organism after passage through the respiratory and digestive tracts. Long-term exposure to Cd can result in the significant bioaccumulation in organism because of its long biological high-life (10-30 years), which exerts irreversible damages on the health of animals and humans. Although there are increased evidence of impeding the normal function of female reproduction resulted from Cd exposure, the mechanism of the negative action of Cd on the growth and development of ovarian follicle remains enigmatic. Thus, the purpose of the presented study is to summarize available literature which describing Cd-related toxicity involved in the adverse effects on the growth and development of the ovarian follicle. In conclusion, it is suggested that Cd causes damage to the folliculogenesis of mammalians, which results in the decline in the number and quality of ovulated oocytes and the failure in the fertilization. The mechanism behinds that may be linked to the interference to the production of reproductive hormones and the augment of reactive oxygen species (ROS). Furthermore, the enhanced ROS, in turn, impairs various molecules including proteins, lipids and DNA, as well as the balance of the antioxidant defense system, mitochondrial homeostasis, endoplasmic reticulum, autophagy and epigenetic modification. This review is expected to elaborate the toxic mechanism of Cd exposure to the growth and development of ovarian follicles and provide essential remediation strategies to alleviate the damage of Cd to female reproductive health.
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Affiliation(s)
- Jingwen Qu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Department of Animal Science, University of Vermont, Burlington, VT 05405, USA.
| | - Qiang Wang
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Xiaomei Sun
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Yongjun Li
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
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17
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Shi C, Yan Z, Zhang Y, Qin L, Wu W, Gao C, Gao L, Liu J, Cui Y. Effects of putrescine on the quality and epigenetic modification of mouse oocytes during in vitro maturation. Reprod Fertil Dev 2022; 34:957-970. [PMID: 36031717 DOI: 10.1071/rd22064] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 07/29/2022] [Indexed: 11/23/2022] Open
Abstract
CONTEXT Low ovarian putrescine levels and decreased peak values following luteinising hormone peaks are related to poor oocyte quantity and quality in ageing women. AIMS To investigate the effects of putrescine supplementation in in vitro maturation (IVM) medium on oocyte quality and epigenetic modification. METHODS Germinal vesicle oocytes retrieved from the ovaries of 8-week-old and 9-month-old mice were divided into four groups (the young, young+difluoromethylornithine (DFMO), ageing and ageing+putrescine groups) and cultured in IVM medium with or without 1mM putrescine or DFMO for 16h. The first polar body extrusion (PBE), cleavage and embryonic development were evaluated. Spindles, chromosomes, mitochondria and reactive oxygen species (ROS) were measured. The expression levels of SIRT1, H3K9ac, H3K9me2, H3K9me3, and 5mC levels were evaluated. Sirt1 and imprinted genes were detected. RESULTS The PBE was higher in the ageing+putrescine group than in the ageing group. Putrescine increased the total and inner cell mass cell numbers of blastocysts in ageing oocytes. Putrescine decreased aberrant spindles and chromosome aneuploidy, increased the mitochondrial membrane potential and decreased ROS levels. Putrescine increased SIRT1 expression and attenuated the upregulation of H3K9ac levels in ageing oocytes. Putrescine did not affect 5mC, H3K9me2 or H3K9me3 levels or imprinted gene expression. CONCLUSIONS Putrescine supplementation during IVM improved the maturation and quality of ageing oocytes and promoted embryonic development by decreasing ROS generation, maintaining mitochondrial and spindle function and correcting aberrant epigenetic modification. IMPLICATIONS Putrescine shows application potential for human-assisted reproduction, especially for IVM of oocytes from ageing women.
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Affiliation(s)
- Chennan Shi
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Zhengjie Yan
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Yuexin Zhang
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Lianju Qin
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Wei Wu
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Chao Gao
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Li Gao
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Jiayin Liu
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
| | - Yugui Cui
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China
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18
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Tao B, Hu H, Chen J, Chen L, Luo D, Sun Y, Ge F, Zhu Z, Trudeau VL, Hu W. Sinhcaf‐dependent histone deacetylation is essential for primordial germ cell specification. EMBO Rep 2022; 23:e54387. [PMID: 35532311 PMCID: PMC9171691 DOI: 10.15252/embr.202154387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 11/09/2022] Open
Abstract
Primordial germ cells (PGCs) are the progenitor cells that give rise to sperm and eggs. Sinhcaf is a recently identified subunit of the Sin3 histone deacetylase complex (SIN3A-HDAC). Here, we provide evidence that Sinhcaf-dependent histone deacetylation is essential for germ plasm aggregation and primordial germ cell specification. Specifically, maternal-zygotic sinhcaf zebrafish mutants exhibit germ plasm aggregation defects, decreased PGC abundance and male-biased sex ratio, which can be rescued by re-expressing sinhcaf. Overexpression of sinhcaf results in excess PGCs and a female-biased sex ratio. Sinhcaf binds to the promoter region of kif26ab. Loss of sinhcaf epigenetically switches off kif26ab expression by increasing histone 3 acetylation in the promoter region. Injection of kif26ab mRNA could partially rescue the germ plasm aggregation defects in sinhcaf mutant embryos. Taken together, we demonstrate a role of Sinhcaf in germ plasm aggregation and PGC specialization that is mediated by regulating the histone acetylation status of the kif26ab promoter to activate its transcription. Our findings provide novel insights into the function and regulatory mechanisms of Sinhcaf-mediated histone deacetylation in PGC specification.
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Affiliation(s)
- Binbin Tao
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | - Hongling Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | - Ji Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | - Lu Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
- University of Chinese Academy of Sciences Beijing China
| | - Daji Luo
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | - Yonghua Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | - Feng Ge
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | - Zuoyan Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
| | | | - Wei Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovation Academy of Seed Design Chinese Academy of Sciences Wuhan China
- University of Chinese Academy of Sciences Beijing China
- Qingdao National Laboratory for Marine Science and Technology Qingdao China
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19
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Varghese J, Peter M, Kamath MS. Oogenesis Arrest Prior to Birth: A Trade-off between Possible Evolutionary Advantages and Age-Related Oocyte Dysfunction? FERTILITY & REPRODUCTION 2021. [DOI: 10.1142/s2661318221500079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Oogenesis in mammalian females, including humans, is arrested prior to birth. Females, therefore, are born with a limited number of primary oocytes. This is in direct contrast to males in whom spermatogenesis continues during the entire lifespan following puberty. Here, we discuss possible evolutionary advantages that this confers and contrast this with age-related decline in oocyte quality that results in diminished fertility with advancing maternal age. We believe that a better understanding of these processes would be helpful in developing strategies to preserve fertility as maternal age increases, especially in the context of the current demographic shift with more and more women seeking fertility treatment at advanced age.
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Affiliation(s)
- Joe Varghese
- Department of Biochemistry, Christian Medical College, Vellore, Tamil Nadu, India
| | - Monica Peter
- Department of Biochemistry, Christian Medical College, Vellore, Tamil Nadu, India
| | - Mohan S. Kamath
- Reproductive Medicine and Surgery, Christian Medical College, Vellore, Tamil Nadu, India
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20
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Lodde V, Luciano AM, Musmeci G, Miclea I, Tessaro I, Aru M, Albertini DF, Franciosi F. A Nuclear and Cytoplasmic Characterization of Bovine Oocytes Reveals That Cysteamine Partially Rescues the Embryo Development in a Model of Low Ovarian Reserve. Animals (Basel) 2021; 11:ani11071936. [PMID: 34209664 PMCID: PMC8300191 DOI: 10.3390/ani11071936] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 11/30/2022] Open
Abstract
Simple Summary Women’s reproductive performance starts declining in the mid-30s, and by age 40–45, the possibility of becoming pregnant becomes very small. Reproductive aging is a physiological process of fertility decline characterized by a decrease in quality and stockpile of eggs (also called ovarian reserve) in most mammals. However, young individuals too can show an accelerated reproductive aging that similarly results in a low ovarian reserve and hypofertility. This syndrome, called premature ovarian failure (POF), is becoming a relevant problem due to the general tendency to postpone the first pregnancy. In this study, we used bovine ovaries that were classified in two categories, according to the number of follicles visible on the ovarian surface, and analyzed some parameters of egg maturation. We observed that eggs from the ‘aging-like’ ovaries carry several defects that impair maturation. However, one of the parameters was improved upon supplementation with a scavenger of free radicals, providing a proof of concept that in-depth knowledge of the cellular mechanisms is essential to find solutions to everyday-life problems. Abstract Decreased oocyte quality is a major determinant of age-associated fertility decline. Similarly, individuals affected by early ovarian aging carry low-quality oocytes. Using an established bovine model of early ovarian aging, we investigated key features of ‘quality’ oocyte maturation, associated with the onset of egg aneuploidy and reproductive aging, such as histone modifications, mitochondria distribution and activity, reduced glutathione (GSH) content, and gap junction functionality. Bovine ovaries were classified according to the antral follicle count (AFC), and the retrieved oocytes were processed immediately or matured in vitro. We observed alterations in several cellular processes, suggesting a multifactorial etiology of the reduced oocyte quality. Furthermore, we performed a rescue experiment for one of the parameters considered. By adding cysteamine to the maturation medium, we experimentally increased the free radical scavenger ability of the ‘low competence’ oocytes and obtained a higher embryo development. Our findings show that adopting culture conditions that counteract the free radicals has a positive impact on the quality of ‘compromised’ oocytes. Specifically, cysteamine treatment seems to be a promising option for treating aging-related deficiencies in embryo development.
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Affiliation(s)
- Valentina Lodde
- Reproductive and Developmental Biology Lab., Dipartimento di Scienze Veterinarie per la Salute la Produzione Animale e la Sicurezza Alimentare ‘Carlo Cantoni’, Università degli Studi di Milano, 20133 Milano, Italy; (V.L.); (A.M.L.); (G.M.); (I.T.); (M.A.)
| | - Alberto Maria Luciano
- Reproductive and Developmental Biology Lab., Dipartimento di Scienze Veterinarie per la Salute la Produzione Animale e la Sicurezza Alimentare ‘Carlo Cantoni’, Università degli Studi di Milano, 20133 Milano, Italy; (V.L.); (A.M.L.); (G.M.); (I.T.); (M.A.)
| | - Giulia Musmeci
- Reproductive and Developmental Biology Lab., Dipartimento di Scienze Veterinarie per la Salute la Produzione Animale e la Sicurezza Alimentare ‘Carlo Cantoni’, Università degli Studi di Milano, 20133 Milano, Italy; (V.L.); (A.M.L.); (G.M.); (I.T.); (M.A.)
| | - Ileana Miclea
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania;
| | - Irene Tessaro
- Reproductive and Developmental Biology Lab., Dipartimento di Scienze Veterinarie per la Salute la Produzione Animale e la Sicurezza Alimentare ‘Carlo Cantoni’, Università degli Studi di Milano, 20133 Milano, Italy; (V.L.); (A.M.L.); (G.M.); (I.T.); (M.A.)
| | - Mariella Aru
- Reproductive and Developmental Biology Lab., Dipartimento di Scienze Veterinarie per la Salute la Produzione Animale e la Sicurezza Alimentare ‘Carlo Cantoni’, Università degli Studi di Milano, 20133 Milano, Italy; (V.L.); (A.M.L.); (G.M.); (I.T.); (M.A.)
| | | | - Federica Franciosi
- Reproductive and Developmental Biology Lab., Dipartimento di Scienze Veterinarie per la Salute la Produzione Animale e la Sicurezza Alimentare ‘Carlo Cantoni’, Università degli Studi di Milano, 20133 Milano, Italy; (V.L.); (A.M.L.); (G.M.); (I.T.); (M.A.)
- Correspondence:
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21
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Pontelo TP, Franco MM, Kawamoto TS, Caixeta FMC, de Oliveira Leme L, Kussano NR, Zangeronimo MG, Dode MAN. Histone deacetylase inhibitor during in vitro maturation decreases developmental capacity of bovine oocytes. PLoS One 2021; 16:e0247518. [PMID: 33667248 PMCID: PMC7935280 DOI: 10.1371/journal.pone.0247518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/09/2021] [Indexed: 02/07/2023] Open
Abstract
This study aimed to evaluate the effect of scriptaid during pre-maturation (PIVM) and/or maturation (IVM) on developmental competence of bovine oocytes. Cumulus-oocyte complexes (COCs) were submitted to PIVM for 6 h in the presence or absence of scriptaid. COCs were distributed into five groups: T1-IVM for 22 h, T2-PIVM for 6 h and IVM for 22 h, T3-PIVM with scriptaid for 6 h and IVM for 22 h, T4-PIVM for 6 h and IVM with scriptaid for 22 h, and T5-PIVM with scriptaid for 6 h and IVM with scriptaid for 22 h. Nuclear maturation, gene expression, cumulus cells (CCs) expansion, and embryo development and quality were evaluated. At the end of maturation, all groups presented the majority of oocytes in MII (P>0.05). Only HAT1 gene was differentially expressed (P<0.01) in oocytes with different treatments. Regarding embryo development at D7, T4 (23%) and T5 (18%) had lower blastocyst rate (P<0.05) than the other treatments (T1 = 35%, T2 = 37% and T3 = 32%). No effect was observed when scriptaid in PIVM was used in less competent oocytes (P>0.05). In conclusion, presence of scriptaid in PIVM and/or IVM did not improve developmental competence or embryo quality.
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Affiliation(s)
| | - Mauricio Machaim Franco
- Federal University Uberlândia, Animal Science, Uberlândia, Minas Gerais, Brazil
- Institute of Genetics and Biochemistry of Federal, University of Uberlandia, Uberlândia, Minas Gerais, Brazil
- Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil
| | | | | | | | | | | | - Margot Alves Nunes Dode
- Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil
- University of Brasilia, Animal Science, Brasilia, Distrito Federal, Brazil
- University of Brasilia, Institute of Biology, Brasilia, Distrito Federal, Brazil
- * E-mail:
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22
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Wuri L, Agca C, Agca Y. Morphometric, subcellular, in vitro fertilisation and embryonic developmental assessment of mouse oocytes produced by anti-inhibin serum or pregnant mare serum gonadotrophin superovulation. Reprod Fertil Dev 2021; 32:474-483. [PMID: 31972126 DOI: 10.1071/rd19131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 08/01/2019] [Indexed: 11/23/2022] Open
Abstract
This study compared the morphometric, subcellular characteristics, in vitro fertilisation (IVF) and embryonic developmental potential of metaphase II (MII) mouse oocytes obtained from females superovulated with either anti-inhibin serum-human chorionic gonadotrophin (AIS-hCG) or pregnant mare serum gonadotrophin (PMSG)-hCG. The oocyte's quantity, quality, zona pellucida (ZP) thickness, perivitelline space (PVS), diameter, microtubules, F-actin, cortical granules (CGs) and mitochondrial distribution were determined. Superovulation using AIS-hCG resulted in a higher numbers of oocyte/donor compared with PMSG-hCG (P=0.002). There was no difference in morphologically normal and abnormal oocytes between AIS-hCG and PMSG-hCG (P=0.425 and P=0.194, respectively). The morphometric measurements showed no difference in oocyte diameter between AIS-hCG and PMSG-hCG (P=0.289). However, the thickness of the ZP of oocytes from AIS-hCG females was decreased compared with PMSG-hCG (P<0.001). The PVS of oocytes from the AIS-hCG was larger than with PMSG-hCG (P<0.001). The microtubules of oocytes from both AIS-hCG and PMSG-hCG were normal, although there was an increased fluorescence intensity in the AIS-hCG oocytes (P<0.001). The F-actin and CGs distribution in oocytes from both AIS-hCG and PMSG-hCG were similar (P=0.330 and P=0.13, respectively). Although the oocytes from PMSG-hCG females had homogenously distributed mitochondria, AIS-hCG oocytes showed more peripheral distribution with no differences in fluorescence intensity (P=0.137). The blastocyst development rates after IVF with fresh sperm showed no difference between AIS-hCG and PMSG-hCG (P=0.235). These data suggested that AIS-hCG superovulation produces high numbers of morphologically normal oocytes that also possess normal subcellular structures, good morphological characteristics and had high invitro embryonic developmental potential.
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Affiliation(s)
- Liga Wuri
- Division of Animal Sciences, University of Missouri, 920 East Campus Drive, Columbia, MO 65201, USA
| | - Cansu Agca
- College of Veterinary Medicine, University of Missouri, 1600 East Rollins Street, Columbia, MO 65211, USA
| | - Yuksel Agca
- Division of Animal Sciences, University of Missouri, 920 East Campus Drive, Columbia, MO 65201, USA; and College of Veterinary Medicine, University of Missouri, 1600 East Rollins Street, Columbia, MO 65211, USA; and Corresponding author.
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23
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Kratz EM, Kokot I, Dymicka-Piekarska V, Piwowar A. Sirtuins-The New Important Players in Women's Gynecological Health. Antioxidants (Basel) 2021; 10:84. [PMID: 33435147 PMCID: PMC7827899 DOI: 10.3390/antiox10010084] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 12/21/2022] Open
Abstract
The participation of sirtuins in the regulation of oxidative stress and inflammation lies at the basis of their possible modes of action and is related to their expression in various cell structures; their location in the mitochondria and blood plasma has been indicated as of primary importance. Despite many existing studies, research on sirtuins continues to present an opportunity to discover new functions and dependencies, especially when it comes to women's gynecological health. Sirtuins have a significant role in both the formation and the course of many gynecological diseases. Their role is particularly important and well documented in the course of the development of cancer within the female reproductive organs; however, disturbances observed in the ovary and oocyte as well as in follicular fluid are also widely investigated. Additionally, sirtuins take part in some gynecological disturbances as regulative factors in pathways associated with insulin resistance, glucose and lipids metabolism disorders. In this review, we would like to summarize the existing knowledge about sirtuins in the manner outlined above.
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Affiliation(s)
- Ewa Maria Kratz
- Department of Laboratory Diagnostics, Division of Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211A, 50-556 Wroclaw, Poland;
| | - Izabela Kokot
- Department of Laboratory Diagnostics, Division of Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211A, 50-556 Wroclaw, Poland;
| | - Violetta Dymicka-Piekarska
- Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, Waszyngtona Street 15A, 15-269 Bialystok, Poland;
| | - Agnieszka Piwowar
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wroclaw, Poland;
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24
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Ma JY, Li S, Chen LN, Schatten H, Ou XH, Sun QY. Why is oocyte aneuploidy increased with maternal aging? J Genet Genomics 2020; 47:659-671. [PMID: 33184002 DOI: 10.1016/j.jgg.2020.04.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 12/19/2022]
Abstract
One of the main causes of pregnancy failure and fetus abortion is oocyte aneuploidy, which is increased with maternal aging. Numerous possible causes of oocyte aneuploidy in aged women have been proposed, including cross-over formation defect, cohesin loss, spindle deformation, spindle assembly checkpoint malfunction, microtubule-kinetochore attachment failure, kinetochore mis-orientation, mitochondria dysfunction-induced increases in reactive oxygen species, protein over-acetylation, and DNA damage. However, it still needs to be answered if these aneuploidization factors have inherent relations, and how to prevent chromosome aneuploidy in aged oocytes. Epidemiologically, oocyte aneuploidy has been found to be weakly associated with higher homocysteine concentrations, obesity, ionizing radiation and even seasonality. In this review, we summarize the research progress and present an integrated view of oocyte aneuploidization.
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Affiliation(s)
- Jun-Yu Ma
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Sen Li
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Lei-Ning Chen
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Xiang-Hong Ou
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Qing-Yuan Sun
- 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.
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25
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Arcarons N, Vendrell-Flotats M, Yeste M, Mercade E, López-Béjar M, Mogas T. Cryoprotectant role of exopolysaccharide of Pseudomonas sp. ID1 in the vitrification of IVM cow oocytes. Reprod Fertil Dev 2020; 31:1507-1519. [PMID: 31092307 DOI: 10.1071/rd18447] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 04/02/2019] [Indexed: 12/12/2022] Open
Abstract
Biological molecules isolated from organisms that live under subzero conditions could be used to protect oocytes from cryoinjuries suffered during cryopreservation. This study examined the cryoprotectant role of exopolysaccharides of Pseudomonas sp. ID1 (EPS ID1) in the vitrification of prepubertal and adult cow oocytes. IVM oocytes were vitrified and warmed in media supplemented with 0, 1, 10, 100 or 1000µgmL-1 EPS ID1. After warming, oocytes were fertilised and embryo development, spindle morphology and the expression of several genes in Day 8 blastocysts were assessed. Vitrification led to significantly lower proportion of prepubertal oocytes exhibiting a normal spindle configuration. In fresh control oocytes and most groups of vitrified adult oocytes, similar percentages of oocytes with a normal spindle configuration were observed. Percentages of Day 8 blastocysts were similar for prepubertal oocytes vitrified in the absence or presence of 1 or 10µgmL-1 EPS ID1 and for adult oocytes vitrified in the presence of 10µgmL-1 EPS ID1 compared with non-vitrified oocytes. EPS ID1 supplementation had no effect on solute carrier family 2 member 3 (SLC2A3), ubiquitin-conjugating enzyme E2A (UBE2A) and histone deacetylase 1 (HDAC1) expression in Day 8 blastocysts form adult oocytes. However, supplementation with 10 and 100µgmL-1 EPS ID1 led to increased expression of genes involved in epigenetic modifications (DNA methyltransferase 3 alpha (DNMT3A) and K (lysine) acetyltransferase 2A (KAT2A)) and apoptosis (BCL2 associated X apoptosis regulator (BAX) and BCL2-like 1 (BCL2L1)). The lowest BAX:BCL2L1 ratio was found in the 10µgmL-1 EPS ID1-supplemented group. The results suggest that 10µgmL-1 EPS ID1 added to vitrification and warming media may help protect bovine oocytes against cryodamage.
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Affiliation(s)
- Núria Arcarons
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, Travessera dels Turons s/n, E-08193, Cerdanyola del Vallès (Barcelona), Spain
| | - Meritxell Vendrell-Flotats
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, Travessera dels Turons s/n, E-08193, Cerdanyola del Vallès (Barcelona), Spain; and Department of Animal Health and Anatomy, Autonomous University of Barcelona, Travessera dels Turons s/n, E-08193, Cerdanyola del Vallès (Barcelona), Spain
| | - Marc Yeste
- Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, C/ Maria Aurèlia Campany 69, Campus Montilivi, E-17003 Girona, Spain
| | - Elena Mercade
- Department de Biology, Health and Environment, Microbiology Section, University of Barcelona, E-08028, Barcelona, Spain
| | - Manel López-Béjar
- Department of Animal Health and Anatomy, Autonomous University of Barcelona, Travessera dels Turons s/n, E-08193, Cerdanyola del Vallès (Barcelona), Spain
| | - Teresa Mogas
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, Travessera dels Turons s/n, E-08193, Cerdanyola del Vallès (Barcelona), Spain; and Corresponding author.
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26
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Vendrell-Flotats M, García-Martínez T, Martínez-Rodero I, Lopez-Bejar M, LaMarre J, Yeste M, Mogas T. In Vitro Maturation with Leukemia Inhibitory Factor Prior to the Vitrification of Bovine Oocytes Improves Their Embryo Developmental Potential and Gene Expression in Oocytes and Embryos. Int J Mol Sci 2020; 21:ijms21197067. [PMID: 32992968 PMCID: PMC7582665 DOI: 10.3390/ijms21197067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 09/16/2020] [Accepted: 09/22/2020] [Indexed: 12/17/2022] Open
Abstract
Oocyte cryopreservation has a significant impact on subsequent embryonic development. Herein, we investigated whether supplementing in vitro maturation medium with Leukemia Inhibitory Factor (LIF) prior to vitrification affects embryo development and gene expression at different embryo developmental stages. A panel of genes including maternal effect, epigenetics, apoptosis and heat stress was relatively quantified. The results show reduced cleavage rates after vitrification, regardless of the LIF treatment. Although not statistically different from control-vitrified oocytes, oocyte apoptosis and the blastocyst yield of LIF-vitrified oocytes were similar to their non-vitrified counterparts. Vitrification increased oocyte ZAR1, NPM2 and DPPA3 gene expression while its expression decreased in LIF-vitrified oocytes to similar or close levels to those of non-vitrified oocytes. With a few gene-specific exceptions, vitrification significantly increased the expression of DNMT3A, HDAC1, KAT2A, BAX and BCL2L1 in oocytes and most stages of embryo development, while comparable expression patterns for these genes were observed between LIF-vitrified and non-vitrified groups. Vitrification increased HSPA1A expression in oocytes and HSP90AA1 in 2-cell embryos. Our data suggest that vitrification triggers stage-specific changes in gene expression throughout embryonic development. However, the inclusion of LIF in the IVM medium prior to vitrification stimulates blastocyst development and several other developmental parameters and induces oocytes and embryos to demonstrate gene expression patterns similar to those derived from non-vitrified oocytes.
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Affiliation(s)
- Meritxell Vendrell-Flotats
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, ES-08193 Cerdanyola del Vallès, Spain; (M.V.-F.); (T.G.-M.); (I.M.-R.)
- Department of Animal Health and Anatomy, Autonomous University of Barcelona, ES-08193 Cerdanyola del Vallès, Spain;
| | - Tania García-Martínez
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, ES-08193 Cerdanyola del Vallès, Spain; (M.V.-F.); (T.G.-M.); (I.M.-R.)
| | - Iris Martínez-Rodero
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, ES-08193 Cerdanyola del Vallès, Spain; (M.V.-F.); (T.G.-M.); (I.M.-R.)
| | - Manel Lopez-Bejar
- Department of Animal Health and Anatomy, Autonomous University of Barcelona, ES-08193 Cerdanyola del Vallès, Spain;
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Jonathan LaMarre
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Marc Yeste
- Department of Biology, Institute of Food and Agricultural Technology, University of Girona, ES-17004 Girona, Spain;
| | - Teresa Mogas
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, ES-08193 Cerdanyola del Vallès, Spain; (M.V.-F.); (T.G.-M.); (I.M.-R.)
- Correspondence: ; Tel.: +34-93-581-10-44
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27
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Sun J, Cui K, Li ZP, Gao B, Huang B, Liu Q, Shi D. Improved early development potence of in vitro fertilization embryos by treatment with tubacin increasing acetylated tubulin of matured porcine oocytes. Mech Dev 2020; 164:103631. [PMID: 32828904 DOI: 10.1016/j.mod.2020.103631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 12/21/2022]
Abstract
To improve the developmental potential of in vitro embryos is a long-term concern field for human assisted reproduction and animal in vitro embryo production practice. In the current study, we examined the effects and mechanism of an HDAC6 inhibitor, tubacin, on the maturation of porcine oocytes and in vitro development of porcine IVF embryos. It has been demonstrated the effect of tubacin on the acetylation level of α-tubulin in porcine oocytes. As a result, the maturation rate of porcine oocytes was significantly improved (P < 0.05), and the following development potent of blastocysts forming rate was also significantly increased (P < 0.05). We found that the increased acetylation of α-tubulin significantly reduced the abnormal rate of microtubule, furthermore, the proportion of mitochondria in the vicinity of in vitro fertilization (IVF) nucleus was significantly enhanced in Metaphase I (MI) and Metaphase II (MII) stages. The expression levels of microtubule assembly genes (TUBA1A, αTAT1 and MAP2) significantly up-regulated in MI and MII stages. Together, these results suggest that treatment of porcine oocytes during maturation with tubacin could promote their IVF embryos developmental competence by altering spindle formation, mitochondrial concentration and genes expression patterns of matured porcine oocytes.
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Affiliation(s)
- JunMing Sun
- Laboratory Animal Center, Guangxi Medical University, Nanning, Guangxi 530021, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China.
| | - KuiQing Cui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China
| | - Zhi Peng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China
| | - BangJun Gao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China
| | - Ben Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China
| | - QingYou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China.
| | - DeShun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530005, China.
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28
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Mikwar M, MacFarlane AJ, Marchetti F. Mechanisms of oocyte aneuploidy associated with advanced maternal age. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2020; 785:108320. [PMID: 32800274 DOI: 10.1016/j.mrrev.2020.108320] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/24/2020] [Accepted: 06/29/2020] [Indexed: 12/30/2022]
Abstract
It is well established that maternal age is associated with a rapid decline in the production of healthy and high-quality oocytes resulting in reduced fertility in women older than 35 years of age. In particular, chromosome segregation errors during meiotic divisions are increasingly common and lead to the production of oocytes with an incorrect number of chromosomes, a condition known as aneuploidy. When an aneuploid oocyte is fertilized by a sperm it gives rise to an aneuploid embryo that, except in rare situations, will result in a spontaneous abortion. As females advance in age, they are at higher risk of infertility, miscarriage, or having a pregnancy affected by congenital birth defects such as Down syndrome (trisomy 21), Edwards syndrome (trisomy 18), and Turner syndrome (monosomy X). Here, we review the potential molecular mechanisms associated with increased chromosome segregation errors during meiosis as a function of maternal age. Our review shows that multiple exogenous and endogenous factors contribute to the age-related increase in oocyte aneuploidy. Specifically, the weight of evidence indicates that recombination failure, cohesin deterioration, spindle assembly checkpoint (SAC) disregulation, abnormalities in post-translational modification of histones and tubulin, and mitochondrial dysfunction are the leading causes of oocyte aneuploidy associated with maternal aging. There is also growing evidence that dietary and other bioactive interventions may mitigate the effect of maternal aging on oocyte quality and oocyte aneuploidy, thereby improving fertility outcomes. Maternal age is a major concern for aneuploidy and genetic disorders in the offspring in the context of an increasing proportion of mothers having children at increasingly older ages. A better understanding of the mechanisms associated with maternal aging leading to aneuploidy and of intervention strategies that may mitigate these detrimental effects and reduce its occurrence are essential for preventing abnormal reproductive outcomes in the human population.
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Affiliation(s)
- Myy Mikwar
- Department of Biology, Carleton University, Ottawa, Ontario, Canada; Nutrition Research Division, Health Canada, Ottawa, Ontario, Canada
| | - Amanda J MacFarlane
- Department of Biology, Carleton University, Ottawa, Ontario, Canada; Nutrition Research Division, Health Canada, Ottawa, Ontario, Canada
| | - Francesco Marchetti
- Department of Biology, Carleton University, Ottawa, Ontario, Canada; Mechanistic Studies Division, Health Canada, Ottawa, Ontario, Canada.
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29
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Choi YJ, Kang MH, Hong K, Kim JH. Tubastatin A inhibits HDAC and Sirtuin activity rather than being a HDAC6-specific inhibitor in mouse oocytes. Aging (Albany NY) 2020; 11:1759-1777. [PMID: 30913540 PMCID: PMC6461172 DOI: 10.18632/aging.101867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/08/2019] [Indexed: 12/14/2022]
Abstract
Tubastatin A (TubA) is a highly selective histone deacetylase 6 (HDAC6) inhibitor. As expected, mouse germinal vesicle oocytes fail to extrude the first polar body following TubA treatment. However, a previous study demonstrated that homozygous Hdac6 knockout (KO) mice can be viable and fertile. Therefore, we asked whether TubA is indeed a specific inhibitor of HDAC6 activity. RNA-sequencing and in silico analysis demonstrated that the TubA-treated group presented significant changes in the expression of Hdac subfamily genes such as Hdac6, 10, and 11, and Sirtuin 2, 5, 6, and 7. Additionally, gene expression related to the p53, MAPK, Wnt, and Notch signaling pathways in the TubA-treated group were increased significantly; in contrast, gene expression related to metabolism, DNA replication, and oxidative phosphorylation was decreased significantly. Furthermore, gene expression related to cell cycle, cell structure, pyrimidine metabolism, pentose phosphate pathway, mitochondrial activation, proteasome pathway, RNA polymerase, DNA replication, cyclin-dependent kinase, nucleolar activity, and MI arrest were significantly decreased, indicating that TubA-induced abnormal meiotic maturation and oocyte senescence may be due to the combined effects of HDAC and Sirtuin inhibition, and not HDAC6 inhibition alone. Thus, we believed that this system could provide a model for monitoring the effects of TubA on mouse oocytes.
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Affiliation(s)
- Yun-Jung Choi
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul 143-701, Republic of Korea
| | - Min-Hee Kang
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul 143-701, Republic of Korea
| | - Kwonho Hong
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul 143-701, Republic of Korea
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul 143-701, Republic of Korea
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30
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Impact of nicotine, alcohol, and cocaine exposure on germline integrity and epigenome. Neuropharmacology 2020; 173:108127. [PMID: 32413368 DOI: 10.1016/j.neuropharm.2020.108127] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/19/2022]
Abstract
Converging evidence suggests that parental exposure to drugs of abuse can affect offspring phenotypes. The impacts of drug abuse on germ cell quality may mediate multigenerational and transgenerational inheritance, although biological pathways underlying this mode of inheritance are not yet characterized. Germline epigenetic marks are modified by drug exposure and have emerged as promising mechanistic candidates in recent work. Drug exposure also impacts overall germline integrity and reproductive functioning, although the role of these consequences in multi/transgenerational inheritance is unclear. This review synthesizes literature on effects of exposure to alcohol, cocaine, and nicotine on the germline with a focus on epigenetic modifications following drug exposure and broader impacts on germline integrity and reproductive functioning. We discuss potential interactions between reproductive functioning, germline integrity, and germline epigenome/transcriptome in pathways underlying multi/transgenerational inheritance. We find that existing data may support independent or interactive contributions of these germline impacts on offspring phenotypes in a manner that may mediate multi/transgenerational inheritance.
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31
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Cao Z, Xu T, Tong X, Zhang D, Liu C, Wang Y, Gao D, Luo L, Zhang L, Li Y, Zhang Y. HASPIN kinase mediates histone deacetylation to regulate oocyte meiotic maturation in pigs. Reproduction 2020; 157:501-510. [PMID: 30870811 DOI: 10.1530/rep-18-0447] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 03/14/2019] [Indexed: 01/17/2023]
Abstract
HASPIN kinase-catalyzed phosphorylation of histone H3 on threonine 3 (H3T3p) directs the activity and localization of chromosomal passenger complex (CPC) and spindle assembly checkpoint (SAC) to regulate chromosome condensation and segregation in both mitosis and meiosis. However, the function of HASPIN kinase in the meiotic maturation of porcine oocytes is not yet known. Here, we found that HASPIN mRNA is constantly expressed in porcine oocyte maturation and subsequent early embryo development. H3T3p is highly enriched on chromosomes at germinal vesicle breakdown (GVBD) stage and thereafter maintains a low level in progression through metaphase I (MI) to metaphase II (MII). Correspondingly, H3T3p was completely abolished in oocytes treated with an inhibitor of HASPIN kinase. Functionally, inhibition of HASPIN activity led to a significant reduction in the rate of oocyte meiotic maturation and the limited cumulus expansion. Additionally, HASPIN inhibition caused both spindle disorganization and chromosome misalignment in oocytes at MI and MII stage. Importantly, HASPIN inhibition severely prevented deacetylation of several highly conserved lysine (K) residues of histone H3 and H4 including H3K9, H3K14, H4K5, H4K8, H4K12 and H4K16 on the metaphase chromosomes during oocyte meiotic maturation. Taken together, these results demonstrate that HASPIN kinase regulates porcine oocyte meiotic maturation via modulating histone deacetylation.
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Affiliation(s)
- Zubing Cao
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Tengteng Xu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xu Tong
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Dandan Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Chengxue Liu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yiqing Wang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Di Gao
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Lei Luo
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Ling Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yunsheng Li
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yunhai Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
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Zhou W, Niu YJ, Nie ZW, Kim JY, Xu YN, Yan CG, Cui XS. Nuclear accumulation of pyruvate dehydrogenase alpha 1 promotes histone acetylation and is essential for zygotic genome activation in porcine embryos. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118648. [DOI: 10.1016/j.bbamcr.2020.118648] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/03/2020] [Accepted: 01/09/2020] [Indexed: 12/27/2022]
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Ruebel ML, Latham KE. Listening to mother: Long-term maternal effects in mammalian development. Mol Reprod Dev 2020; 87:399-408. [PMID: 32202026 DOI: 10.1002/mrd.23336] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 03/08/2020] [Indexed: 12/17/2022]
Abstract
The oocyte is a complex cell that executes many crucial and unique functions at the start of each life. These functions are fulfilled by a unique collection of macromolecules and other factors, all of which collectively support meiosis, oocyte activation, and embryo development. This review focuses on the effects of oocyte components on developmental processes that occur after the initial stages of embryogenesis. These include long-term effects on genome function, metabolism, lineage allocation, postnatal progeny health, and even subsequent generations. Factors that regulate chromatin structure, genome programming, and mitochondrial function are elements that contribute to these oocyte functions.
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Affiliation(s)
- Meghan L Ruebel
- Department of Animal Science, and Reproductive and Developmental Sciences Program, Michigan State University, East Lansing, Michigan
| | - Keith E Latham
- Department of Animal Science, and Reproductive and Developmental Sciences Program, Michigan State University, East Lansing, Michigan
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Effects of resveratrol, granulocyte-macrophage colony-stimulating factor or dichloroacetic acid in the culture media on embryonic development and pregnancy rates in aged mice. Aging (Albany NY) 2020; 12:2659-2669. [PMID: 32028268 PMCID: PMC7041760 DOI: 10.18632/aging.102768] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 01/12/2020] [Indexed: 02/06/2023]
Abstract
The success rate of assisted reproductive technology is closely correlated with maternal age. Reproductive aging pathologies are frequently caused by impaired DNA repair, genomic instability, and mitochondrial dysfunction. Several reports have shown that resveratrol can prevent age-related diseases by improving mitochondrial function. Improved blastocyst development and mitochondrial output by dichloroacetic acid (DCA) supplementation were reported in aged mice. Granulocyte-macrophage colony-stimulating factor (GM-CSF) has significant effects on implantation rates in women with previous miscarriages. Therefore, this study was conducted to observe how those compounds influence the developmental and the reproductive potential of aged oocytes. BDF1 female mice at 58-62 weeks old were used for this study. MII oocytes were fertilized and cultured in MRC media supplemented with or without resveratrol (0.5 μM), GM-CSF (2 ng/ml) or DCA (1.0 mM). The addition of resveratrol, GM-CSF or DCA tended to increase blastocyst development and pregnancy rates. Supplementation with resveratrol significantly increased the pregnancy and implantation rates (p < 0.05). Moreover, resveratrol decreased reactive oxygen species production and increased mitochondrial membrane potential. These results suggest that the addition of resveratrol can increase pregnancy outcomes in women of advanced maternal age.
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Kindsfather AJ, Czekalski MA, Pressimone CA, Erisman MP, Mann MRW. Perturbations in imprinted methylation from assisted reproductive technologies but not advanced maternal age in mouse preimplantation embryos. Clin Epigenetics 2019; 11:162. [PMID: 31767035 PMCID: PMC6878706 DOI: 10.1186/s13148-019-0751-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 09/23/2019] [Indexed: 12/19/2022] Open
Abstract
Background Over the last several decades, the average age of first-time mothers has risen steadily. With increasing maternal age comes a decrease in fertility, which in turn has led to an increase in the use of assisted reproductive technologies by these women. Assisted reproductive technologies (ARTs), including superovulation and embryo culture, have been shown separately to alter imprinted DNA methylation maintenance in blastocysts. However, there has been little investigation on the effects of advanced maternal age, with or without ARTs, on genomic imprinting. We hypothesized that ARTs and advanced maternal age, separately and together, alter imprinted methylation in mouse preimplantation embryos. For this study, we examined imprinted methylation at three genes, Snrpn, Kcnq1ot1, and H19, which in humans are linked to ART-associated methylation errors that lead to imprinting disorders. Results Our data showed that imprinted methylation acquisition in oocytes was unaffected by increasing maternal age. Furthermore, imprinted methylation was normally acquired when advanced maternal age was combined with superovulation. Analysis of blastocyst-stage embryos revealed that imprinted methylation maintenance was also not affected by increasing maternal age. In a comparison of ARTs, we observed that the frequency of blastocysts with imprinted methylation loss was similar between the superovulation only and the embryo culture only groups, while the combination of superovulation and embryo culture resulted in a higher frequency of mouse blastocysts with maternal imprinted methylation perturbations than superovulation alone. Finally, the combination of increasing maternal age with ARTs had no additional effect on the frequency of imprinted methylation errors. Conclusion Collectively, increasing maternal age with or without superovulation had no effect of imprinted methylation acquisition at Snrpn, Kcnq1ot1, and H19 in oocytes. Furthermore, during preimplantation development, while ARTs generated perturbations in imprinted methylation maintenance in blastocysts, advanced maternal age did not increase the burden of imprinted methylation errors at Snrpn, Kcnq1ot1, and H19 when combined with ARTs. These results provide cautious optimism that advanced maternal age is not a contributing factor to imprinted methylation errors in embryos produced in the clinic. Furthermore, our data on the effects of ARTs strengthen the need to advance clinical methods to reduce imprinted methylation errors in in vitro-produced embryos.
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Affiliation(s)
- Audrey J Kindsfather
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, 204 Craft Ave, Pittsburgh, PA, 15213, USA.,Magee-Womens Research Institute, 204 Craft Ave, Pittsburgh, PA, 15213, USA
| | - Megan A Czekalski
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, 204 Craft Ave, Pittsburgh, PA, 15213, USA.,Magee-Womens Research Institute, 204 Craft Ave, Pittsburgh, PA, 15213, USA
| | - Catherine A Pressimone
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, 204 Craft Ave, Pittsburgh, PA, 15213, USA.,Magee-Womens Research Institute, 204 Craft Ave, Pittsburgh, PA, 15213, USA
| | - Margaret P Erisman
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, 204 Craft Ave, Pittsburgh, PA, 15213, USA.,Magee-Womens Research Institute, 204 Craft Ave, Pittsburgh, PA, 15213, USA
| | - Mellissa R W Mann
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, 204 Craft Ave, Pittsburgh, PA, 15213, USA. .,Magee-Womens Research Institute, 204 Craft Ave, Pittsburgh, PA, 15213, USA.
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Cheng Y, Zhang J, Wu T, Jiang X, Jia H, Qing S, An Q, Zhang Y, Su J. Reproductive toxicity of acute Cd exposure in mouse: Resulting in oocyte defects and decreased female fertility. Toxicol Appl Pharmacol 2019; 379:114684. [PMID: 31325558 DOI: 10.1016/j.taap.2019.114684] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/13/2019] [Accepted: 07/16/2019] [Indexed: 11/16/2022]
Abstract
Cadmium (Cd), a known metal contaminant, is widespreadly used in industry, thereby human health is severely affected through the way of occupational and environmental exposure. The adverse effects of the exposure to Cd on the female reproductive system, especially oocyte maturation and fertility have not been clearly defined. In this study, we found the arrested development of ovaries and uteri after Cd exposure and determined oocyte quality via assessing the key regulators during meiotic maturation and fertilization. We found that Cd exposure impeded the mouse oocyte meiotic progression by disrupting the normal spindle assembly, chromosome alignment and actin cap formation. Besides, exposure to Cd induced oxidative stress with the increased reactive oxygen species and apoptosis levels, leading to abnormal mitochondrial distribution, insufficient energy supply, and DNA damage, which ultimately led to oocyte quality deterioration. We also analyzed the effects of cadmium on epigenetic modifications, and the levels of 5mC, H3K9me3 and H3K9ac decreased after acute exposure to cadmium. Further experiments showed that the litter size in Cd-exposed female mice reduced, thereby indicating increased reproductive Cd toxicity. In conclusion, Cd exposure impairs oocyte maturation and fertilization ability induced by oxidative stress, early apoptosis and epigenetic modifications, which lead to the decrease of female fertility.
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Affiliation(s)
- Yuyao Cheng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Jun Zhang
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai Province 810003, PR China
| | - Teng Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Xianlei Jiang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Huiqun Jia
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Suzhu Qing
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Quanli An
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China.
| | - Jianmin Su
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China.
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Xu M, Qian J, Si L, Qu X, Li J. The Effect of Epigenetic Changes on the Extrusion of the First Polar Body in Pig Oocytes During In Vitro Maturation. Cell Reprogram 2019; 21:129-140. [PMID: 31084435 DOI: 10.1089/cell.2018.0071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The present study was designed to investigate the comprehensive function of maternal factors of primordial germ cell 7 (PGC7) and POU5F1-POU class 5 homeobox 1 (OCT4), as well as the epigenetic modification roles on the mitosis for the extrusion of first polar body (PB1) in pig maturated oocytes. First, the common distribution of histone modifications, including H3K4me2, H3K27me3, H3K9me2, and H4K12ac and DNA methylation, were detected at the high level in the nucleus. However, only one part of the chromosome was higher methylated or acetylated when the mitosis happened to extrude the PB1. When the mitosis was inhibited by the cytochalasin B (CB) treatment, the expression of PGC7, OCT4, DNA methyltransferase1 (DNMT1), DNA methyltransferase3b (DNMT3b), tet methylcytosine dioxygenase 1 (TET1), tet methylcytosine dioxygenase 2 (TET2), and tet methylcytosine dioxygenase 3 (TET3) could be inhibited (p < 0.01), and no concentrated expression of the PGC7 and OCT4 was observed on the chromosome, but the levels of H3K9me2 and H4K12ac were higher. In addition, when the trichostatin A was performed on the in vitro maturation, the extrusion of the PB1 was inhibited too. And the histone methylation (H3K9me2 and H3K27me3) could be detected all the time with relative higher level and no demethylation could be observed. However, the expression of PGC7 and OCT4 was lower in the chromosome. It might indicate that the maternal factor of PGC7 and histone modification that included H4K12ac and H3K9me2 could regulate the extrusion of the PB1 and play an important role in the maturation of pig oocytes.
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Affiliation(s)
- Mingzhu Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, P.R. China
| | - Jialing Qian
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, P.R. China
| | - Linan Si
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, P.R. China
| | - Xiao Qu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, P.R. China
| | - Juan Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, P.R. China
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38
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Zhu JQ, Liu Y, Zhang JH, Liu YF, Cao JQ, Huang ZT, Yuan Y, Bian JC, Liu ZP. Cadmium Exposure of Female Mice Impairs the Meiotic Maturation of Oocytes and Subsequent Embryonic Development. Toxicol Sci 2019; 164:289-299. [PMID: 29684212 DOI: 10.1093/toxsci/kfy089] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cadmium is one major pollutant that is highly toxic to animals and humans. The mechanism of cadmium toxicity on the female reproductive system, particularly oocyte maturation and fertility, remains to be clarified. In this study, we used a mouse model to investigate the effects of cadmium in the drinking water on the meiotic maturation of oocytes and subsequent embryonic development, and the underlying mechanisms associated with the impairment of oocyte maturation such as mitochondrial distribution and histone modifications. Our results show that cadmium exposure decreased the number of ovulated oocytes and impaired oocyte meiotic maturation rate both in vivo and in vitro. The embryonic development after fertilization was also impaired even when the potential hazards of cadmium on the spermatozoa or the genital tract have been excluded by fertilization and embryonic development in culture. Cadmium exposure disrupted meiotic spindle morphology and actin filament, which are responsible for successful chromosome segregation and the polar body extrusion during oocyte maturation and fertilization. ATP contents, which are required for proper meiotic spindle assembly in the oocyte, were decreased, consistent with altered mitochondrial distribution after cadmium exposure. Finally, cadmium exposure affected the levels of H3K9me2 and H4K12ac in the oocyte, which are closely associated with the acquisition of oocyte developmental competence and subsequent embryonic development. In conclusion, cadmium exposure in female mice impaired meiotic maturation of oocytes and subsequent embryonic development by affecting the cytoskeletal organization, mitochondrial function, and histone modifications.
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Affiliation(s)
- Jia-Qiao Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, People's Republic of China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Jiang-Hong Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yan-Fang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Jiang-Qin Cao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Zhu-Tao Huang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yan Yuan
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, People's Republic of China
| | - Jian-Chun Bian
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Zong-Ping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, People's Republic of China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
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Chen H, Zhang L, Wang Z, Chang H, Xie X, Fu L, Zhang Y, Quan F. Resveratrol improved the developmental potential of oocytes after vitrification by modifying the epigenetics. Mol Reprod Dev 2019; 86:862-870. [PMID: 31066155 DOI: 10.1002/mrd.23161] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/26/2019] [Accepted: 04/12/2019] [Indexed: 01/13/2023]
Abstract
Resveratrol (Res) has been reported to be able to improve oocyte vitrification because of its antioxidative properties. The objective of this study was to further assess the positive effect of Res addition on the developmental potential of vitrified mouse oocytes from the perspective of epigenetic alterations. First, 2 μM Res was chosen as the optimal concentration on the basis of its effects on survival and its antioxidative properties. We found that Res addition significantly promoted fertilization (63.8% vs. 42.9%) and blastocyst formation (68.3% vs. 50.2%) after oocyte vitrification. The quality of the derived blastocysts was also higher after Res treatment. Regarding epigenetic aspects, the expression of the important deacetylase SIRT1 was found to decrease significantly upon vitrification, but it was rescued by Res. The abnormal levels of H3K9 acetylation and DNA methylation in vitrified oocytes were restored by Res addition. Moreover, the expression of several imprinted genes was affected by oocyte vitrification. Among them, abnormal Gtl2 and Peg3 expression levels were restored by Res addition. Therefore, the methylation of their imprinted control regions (ICRs) was examined. Surprisingly, the abnormal patterns of Gtl2 and Peg3 methylation in blastocysts developed from vitrified oocytes were both restored by Res addition. Finally, the full-term embryonic development showed that the birth rate was improved significantly by Res addition (56.2% vs. 38.1%). Collectively, Res was beneficial for the pre- and postimplantation embryonic development. Except for the antioxidative activity, Res also played a role in the correction of some abnormal epigenetic modifications caused by oocyte vitrification.
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Affiliation(s)
- Huanhuan Chen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Lei Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Zhenqiang Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Haoya Chang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Xiaogang Xie
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Liangzheng Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Yong Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Fusheng Quan
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
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40
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Compromised global embryonic transcriptome associated with advanced maternal age. J Assist Reprod Genet 2019; 36:915-924. [PMID: 31025158 PMCID: PMC6541584 DOI: 10.1007/s10815-019-01438-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 03/12/2019] [Indexed: 12/20/2022] Open
Abstract
Purpose To investigate the global transcriptome and associated embryonic molecular networks impacted with advanced maternal age (AMA). Methods Blastocysts derived from donor oocyte IVF cycles with no male factor infertility (< 30 years of age) and AMA blastocysts (≥ 42 years) with no other significant female factor infertility or male factor infertility were collected with informed patient consent. RNA sequencing libraries were prepared using the SMARTer® Ultra® Low Kit (Clontech Laboratories) and sequenced on the Illumina HiSEQ 4000. Bioinformatics included Ingenuity® Pathway Analysis (Qiagen) with ViiA™ 7 qPCR utilized for gene expression validation (Applied Biosystems). Results A total of 2688 significant differentially expressed transcripts were identified to distinguish the AMA blastocysts from young, donor controls. 2551 (95%) of these displayed decreased transcription in the blastocysts from older women. Pathway analysis revealed three altered molecular signaling networks known to be critical for embryo and fetal development: CREBBP, ESR1, and SP1. Validation of genes within these networks confirmed the global decreased transcription observed in AMA blastocysts (P < 0.05). Conclusions A significant, overall decreased global transcriptome was observed in blastocysts from AMA women. The ESR1/SP1/CREBBP pathway, in particular, was found to be a highly significant upstream regulator impacting biological processes that are vital during embryonic patterning and pre-implantation development. These results provide evidence that AMA embryos are compromised on a cell signaling level which can repress the embryo’s ability to proliferate and implant, contributing to a deterioration of reproductive outcomes. Electronic supplementary material The online version of this article (10.1007/s10815-019-01438-5) contains supplementary material, which is available to authorized users.
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41
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Cao Y, Li M, Liu F, Ni X, Wang S, Zhang H, Sui X, Huo R. Deletion of maternal UHRF1 severely reduces mouse oocyte quality and causes developmental defects in preimplantation embryos. FASEB J 2019; 33:8294-8305. [PMID: 30995416 DOI: 10.1096/fj.201801696rrrr] [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] [Indexed: 12/11/2022]
Abstract
The ubiquitin-like, containing PHD and RING finger domains, 1 (UHRF1) protein recognizes DNA methylation and histone modification and plays a critical role in epigenetic regulation. Recently, UHRF1 was shown to have a role in DNA methylation in oocytes and early embryos. Here, we reveal that maternal UHRF1 determines the quality of mouse oocytes. We generated oocyte-specific Uhrf1-knockout mice and found that females were sterile, and few maternal UHRF1-null embryos developed into blastocysts. The UHRF1-null oocytes had an increased incidence of aneuploidy and DNA damage. In addition to defective DNA methylation, histone modification was affected during oogenesis, with UHRF1-null germinal vesicle and metaphase II-stage oocytes exhibiting reduced global histone H3 lysine 9 dimethylation levels and elevated acetylation of histone H4 lysine 12. Taken together, our results suggest that UHRF1 plays an important role in determining oocyte quality and affects epigenetic regulation of oocyte maturation as a maternal protein, which is crucial for embryo developmental potential. Further exploration of the biologic function and underlying mechanisms of maternal UHRF1 will enhance our understanding of the maternal control of the oocyte and early embryonic development.-Cao, Y., Li, M., Liu, F., Ni, X., Wang, S., Zhang, H., Sui, X., Huo, R. Deletion of maternal UHRF1 severely reduces mouse oocyte quality and causes developmental defects in preimplantation embryos.
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Affiliation(s)
- Yumeng Cao
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Mingrui Li
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Fei Liu
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - XiaoBei Ni
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Shuai Wang
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Hao Zhang
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Xuesong Sui
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Ran Huo
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
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Wang H, Cui W, Meng C, Zhang J, Li Y, Qian Y, Xing G, Zhao D, Cao S. MC1568 Enhances Histone Acetylation During Oocyte Meiosis and Improves Development of Somatic Cell Nuclear Transfer Embryos in Pig. Cell Reprogram 2019; 20:55-65. [PMID: 29412739 DOI: 10.1089/cell.2017.0023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
An increasing number of studies have revealed that histone deacetylase (HDAC) mediated histone deacetylation is important for mammalian oocyte development. However, nonselective HDAC inhibitors (HDACi) were applied in most studies; the precise functions of specific HDAC classes during meiosis are poorly defined. In this study, the class IIa-specific HDACi MC1568 was used to reveal a crucial role of class IIa HDACs in the regulation of histone deacetylation during porcine oocyte meiosis. Besides, the functions of HDACs and histone acetyltransferases in regulating the balance of histone acetylation/deacetylation were also confirmed during oocyte maturation. After the validation of nontoxicity of MC1568 in maturation rate, spindle morphology, and chromosome alignment, effects of MC1568 on developmental competence of porcine somatic cell nuclear transfer (SCNT) embryos were evaluated, and data indicated that treatment with 10 μM MC1568 for 12 hours following electrical activation significantly enhanced the blastocyst rate and cell numbers. Moreover, results showed that optimal MC1568 treatment increased the H4K12 acetylation level in SCNT one cells and two cells. In addition, MC1568 treatment stimulated expression of the development-related genes OCT4, CDX2, SOX2, and NANOG in SCNT blastocysts. Collectively, our investigation uncovered a critical role of class IIa HDACs in the regulation of histone deacetylation during oocyte meiosis. Furthermore, for the first time, we showed that MC1568 can improve the in vitro development of porcine SCNT embryos. These findings provide an alternative HDACi for improving animal cloning efficiency and may shed more light on nuclear reprogramming.
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Affiliation(s)
- Huili Wang
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Wei Cui
- 2 Department of Veterinary and Animal Sciences, University of Massachusetts Amherst , Amherst, Massachusetts
| | - Chunhua Meng
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Jun Zhang
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Yinxia Li
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Yong Qian
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Guangdong Xing
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Dongmin Zhao
- 3 Institute of Veterinary Medicine , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
| | - Shaoxian Cao
- 1 Institute of Animal Science , Jiangsu Academy of Agricultural Sciences, Nanjing, P.R. China
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Tanaka A, Watanabe S. Can cytoplasmic donation rescue aged oocytes? Reprod Med Biol 2019; 18:128-139. [PMID: 30996676 PMCID: PMC6452014 DOI: 10.1002/rmb2.12252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 09/12/2018] [Accepted: 10/02/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The pregnancy and delivery rates following assisted reproductive technology (ART) start to decrease and that the miscarriage rate increases rapidly from 35 years old. The miscarriage rate exceeds 50% at 43 years old. The number of aneuploid fetuses in miscarriages increases according to female age, reaching more than 90% when women are over 40 years old. METHODS Different cytoplasmic donation technologies used to rescue aged oocytes with high percentage of aneuploidy were analyzed, and their efficacy compared. MAIN FINDINGS RESULTS Germinal vesicle transfer (GVT) might be superior to spindle chromosome transfer (ST) theoretically from the point of higher capability of rescuing the disjunction at meiosis I which cannot be helped by ST. However, actually, in vitro maturation (IVM) of oocyte after GVT has not yet been totally completed. ST among other nuclear donations showed the higher possibility to rescue them, due to the fact it does not require in vitro maturation and it has an ethical advantage over pronuclear transfer (PNT) which requires the destruction of an embryo. CONCLUSION Spindle chromosome transfer has the potential to rescue aged oocytes to some extent, but we have to continue the basic study further to establish the clinical application of cytoplasmic donation to rescue aged oocytes.
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Affiliation(s)
- Atsushi Tanaka
- Saint Mother Obstetrics and Gynecology Clinic and Institute for ARTFukuokaJapan
| | - Seiji Watanabe
- Department of Anatomical ScienceHirosaki University Graduate School of MedicineAomoriJapan
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Lee PC, Wildt DE, Comizzoli P. Proteomic analysis of germinal vesicles in the domestic cat model reveals candidate nuclear proteins involved in oocyte competence acquisition. Mol Hum Reprod 2019; 24:14-26. [PMID: 29126204 DOI: 10.1093/molehr/gax059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/04/2017] [Indexed: 12/14/2022] Open
Abstract
STUDY QUESTION Do nuclear proteins in the germinal vesicle (GV) contribute to oocyte competence acquisition during folliculogenesis? SUMMARY ANSWER Proteomic analysis of GVs identified candidate proteins for oocyte competence acquisition, including a key RNA processing protein-heterogeneous nuclear ribonucleoprotein A2/B1 (hnRNPA2B1). WHAT IS KNOWN ALREADY The domestic cat GV, which is physiologically similar to the human GV, gains the intrinsic ability to resume meiosis and support early embryo development during the pre-antral-to-antral follicle transition. However, little is known about nuclear proteins that contribute to this developmental process. STUDY DESIGN SIZE, DURATION GVs were enriched from pre-antral (incompetent) and antral (competent) follicles from 802 cat ovaries. Protein lysates were subjected to quantitative proteomic analysis to identify differentially expressed proteins in GVs from the two follicular categories. PARTICIPANTS/MATERIALS, SETTING, METHODS Two biological replicates (from independent pools of ovaries) of pre-antral versus antral samples were labeled by tandem mass tags and then assessed by liquid chromatography-tandem mass spectrometry. Proteomic data were analyzed according to gene ontology and a protein-protein interaction network. Immunofluorescent staining and protein inhibition assays were used for validation. MAIN RESULTS AND THE ROLE OF CHANCE A total of 174 nuclear proteins was identified, with 54 being up-regulated and 22 down-regulated (≥1.5-fold) after antrum formation. Functional protein analysis through gene ontology over-representation tests revealed that changes in molecular network within the GVs during this transitional phase were related to chromatin reorganization, gene transcription, and maternal RNA processing and storage. Protein inhibition assays verified that hnRNPA2B1, a key nuclear protein identified, was required for oocyte meiotic maturation and subsequent blastocyst formation. LARGE SCALE DATA Data are available via ProteomeXchange with identifier PXD007211. LIMITATIONS REASONS FOR CAUTION Proteins identified by proteomic comparison may (i) be involved in processes other than competence acquisition during the pre-antral-to-antral transition or (ii) be co-expressed in other macrostructures besides the GV. Expressional and functional validations should be performed for candidate proteins before downstream application. WIDER IMPLICATIONS OF THE FINDINGS Collective results generated a blueprint to better understand the molecular mechanisms involved in GV competence acquisition and identified potential nuclear competence markers for human fertility preservation. STUDY FUNDING AND COMPETING INTEREST(S) Funded by the National Center for Research Resources (R01 RR026064), a component of the National Institutes of Health (NIH) and currently by the Office of Research Infrastructure Programs/Office of the Director (R01 OD010948). The authors declare that there is no conflict of interest.
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Affiliation(s)
- P-C Lee
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC 20008, USA
| | - D E Wildt
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC 20008, USA
| | - P Comizzoli
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC 20008, USA
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Chamani IJ, Keefe DL. Epigenetics and Female Reproductive Aging. Front Endocrinol (Lausanne) 2019; 10:473. [PMID: 31551923 PMCID: PMC6736555 DOI: 10.3389/fendo.2019.00473] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 06/28/2019] [Indexed: 12/12/2022] Open
Abstract
With more women than ever waiting until a more advanced age to have children, there exists a newfound urgency to identify the various implications aging has on human reproduction, and understand the disrupted biological processes that result in these changes. In this review, we focus on one recent area of study: the age related epigenetic changes that have been found in female reproductive organs, and the effect these changes may contribute to reproductive outcomes.
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Affiliation(s)
| | - David L. Keefe
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY, United States
- *Correspondence: David L. Keefe
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Bódis J, Sulyok E, Kőszegi T, Gödöny K, Prémusz V, Várnagy Á. Serum and follicular fluid levels of sirtuin 1, sirtuin 6, and resveratrol in women undergoing in vitro fertilization: an observational, clinical study. J Int Med Res 2018; 47:772-782. [PMID: 30556451 PMCID: PMC6381453 DOI: 10.1177/0300060518811228] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objective This observational, clinical study was designed to assess the role of sirtuin 1 (SIRT1), sirtuin 6 (SIRT6), and resveratrol in in vitro fertilization (IVF). Methods Paired serum and follicular fluid (FF) samples were obtained from 30 consecutive patients (age: 36.43 ± 4.17 years, body mass index: 22.90 ± 2.05 kg/m2, duration of infertility: 5.10 ± 2.80 years) who received IVF treatment. SIRT1, SIRT6, and resveratrol levels were measured by enzyme-linked immunosorbent assay. Results Ovarian hyperstimulation resulted in significantly higher serum SIRT1 levels in pregnant women (8 patients) compared with non-pregnant women (22 patients). SIRT6 levels remained unchanged after ovarian hyperstimulation, but were significantly lower in pregnant women compared with non-pregnant women before and after hyperstimulation. Both SIRTs were detected in FF, but they appeared to be independent of their serum levels. After correction for confounders, FF SIRT6 levels were positively related to mature oocytes (F = 6.609), whereas serum SIRT1 and SIRT6 levels were related to clinical pregnancy (F = 10.008, F = 5.268, respectively). Conclusions Our study shows that SIRT1 and SIRT6, but not resveratrol, are involved in human reproduction and they may have a role in oocyte maturation and clinical pregnancy in IVF.
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Affiliation(s)
- József Bódis
- 1 MTA-PTE Human Reproduction Scientific Research Group, University of Pécs, Pécs, Hungary
| | - Endre Sulyok
- 2 Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | - Tamás Kőszegi
- 3 Department of Laboratory Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Krisztina Gödöny
- 1 MTA-PTE Human Reproduction Scientific Research Group, University of Pécs, Pécs, Hungary.,4 Department of Obstetrics and Gynaecology, Medical School, University of Pécs, Pécs, Hungary
| | - Viktória Prémusz
- 1 MTA-PTE Human Reproduction Scientific Research Group, University of Pécs, Pécs, Hungary.,2 Doctoral School of Health Sciences, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | - Ákos Várnagy
- 4 Department of Obstetrics and Gynaecology, Medical School, University of Pécs, Pécs, Hungary
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Marshall KL, Wang J, Ji T, Rivera RM. The effects of biological aging on global DNA methylation, histone modification, and epigenetic modifiers in the mouse germinal vesicle stage oocyte. Anim Reprod 2018; 15:1253-1267. [PMID: 34221140 PMCID: PMC8203117 DOI: 10.21451/1984-3143-ar2018-0087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
A cultural trend in developed countries is favoring a delay in maternal age at first childbirth.
In mammals fertility and chronological age show an inverse correlation. Oocyte quality is
a contributing factor to this multifactorial phenomenon that may be influenced by age-related
changes in the oocyte epigenome. Based on previous reports, we hypothesized that advanced
maternal age would lead to alterations in the oocyte’s epigenome. We tested our hypothesis
by determining protein levels of various epigenetic modifications and modifiers in fully-grown
(≥70 µm), germinal vesicle (GV) stage oocytes of young (10-13 weeks) and aged
(69-70 weeks) mice. Our results demonstrate a significant increase in protein amounts of
the maintenance DNA methyltransferase DNMT1 (P = 0.003) and a trend toward increased global
DNA methylation (P = 0.09) with advanced age. MeCP2, a methyl DNA binding domain protein, recognizes
methylated DNA and induces chromatin compaction and silencing. We hypothesized that chromatin
associated MeCP2 would be increased similarly to DNA methylation in oocytes of aged female
mice. However, we detected a significant decrease (P = 0.0013) in protein abundance of MeCP2
between GV stage oocytes from young and aged females. Histone posttranslational modifications
can also alter chromatin conformation. Di-methylation of H3K9 (H3K9me2) is associated with
permissive heterochromatin while acetylation of H4K5 (H4K5ac) is associated with euchromatin.
Our results indicate a trend toward decreasing H3K9me2 (P = 0.077) with advanced female age
and no significant differences in levels of H4K5ac. These data demonstrate that physiologic
aging affects the mouse oocyte epigenome and provide a better understanding of the mechanisms
underlying the decrease in oocyte quality and reproductive potential of aged females.
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Affiliation(s)
- Kira Lynn Marshall
- Division of Animal Sciences.,Reproductive Sciences, San Diego Zoo Global Institute for Conservation Research, San Pasqual Valley Rd
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Wang H, Ling L, Ai L, Bai L. HDAC6 inhibition induces the failure of mouse early embryonic development. J Cell Physiol 2018; 234:8752-8759. [PMID: 30370558 DOI: 10.1002/jcp.27534] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/10/2018] [Indexed: 11/08/2022]
Abstract
Histone deacetylases (HDACs) have been implicated in numerous biological events. However, to date, the role of HDAC6 in early embryos remains unknown. In the current study, Tubastatin A (TubA), a potent HDAC6 inhibitor, was used to block HDAC6 activity in mouse embryos. We found that TubA exposure significantly reduced the blastocyst formation of early embryos. Confocal microscopy revealed the markedly increased chromosomal congression failure in the mouse embryos treated with the HDAC6 inhibitor. Moreover, the HDAC6 inhibition resulted in the overproduction of reactive oxygen species (ROS) in embryos. In addition, we observed the accumulation of phosphorylated γH2AX in TubA-treated embryos, indicative of the increased DNA damage. In line with this, cell apoptosis of blastocysts was frequently detected in HDAC6-deficient embryos compared with their controls. Altogether, our data indicate that HDAC6 may serve as an important regulator of chromatin structure and mitochondrial function, determining the developmental potential of the early embryos of mouse.
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Affiliation(s)
- Hui Wang
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Li Ling
- Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Limei Ai
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Liping Bai
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Jung HG, Hwang YS, Park YH, Cho HY, Rengaraj D, Han JY. Role of Epigenetic Regulation by the REST/CoREST/HDAC Corepressor Complex of Moderate NANOG Expression in Chicken Primordial Germ Cells. Stem Cells Dev 2018; 27:1215-1225. [DOI: 10.1089/scd.2018.0059] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Hyun Gyo Jung
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Young Sun Hwang
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Young Hyun Park
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Ho Yeon Cho
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Deivendran Rengaraj
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
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Ghazifard A, Salehi M, Ghaffari Novin M, Bandehpour M, Keshavarzi S, Fallah Omrani V, Dehghani-Mohammadabadi M, Masteri Farahani R, Hosseini A. Anacardic Acid Reduces Acetylation of H4K12 in Mouse Oocytes during Vitrification. CELL JOURNAL 2018; 20:552-558. [PMID: 30124002 PMCID: PMC6099150 DOI: 10.22074/cellj.2019.5601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 02/06/2018] [Indexed: 11/10/2022]
Abstract
Objective Over the last years, vitrification has been widely used for oocyte cryopreservation, in animals and humans; however,
it frequently causes minor and major epigenetic modifications. The effect of oocyte vitrification on levels of acetylation of
histone H4 at lysine 12 (AcH4K12), and histone acetyltransferase (Hat) expression, was previously assessed; however, little is
known about the inhibition of Hat expression during oocyte vitrification. This study evaluated the effect of anacardic acid (AA)
as a Hat inhibitor on vitrified mouse oocytes.
Materials and Methods In this experimental study, 248 mouse oocytes at metaphase II (MII) stage were divided in three
experimental groups namely, fresh control oocytes (which were not affected by vitrification), frozen/thawed oocytes (vitrified)
and frozen/thawed oocytes pre-treated with AA (treatment). Out of 248 oocytes, 173 oocytes were selected and from them,
84 oocytes were vitrified without AA (vitrified group) and 89 oocytes were pretreated with AA, and then vitrified (treatment
group). Fresh MII mouse oocytes were used as control group. Hat expression and AcH4K12 levels were assessed by using
real-time quantitative polymerase chain reaction (PCR) and immunofluoresce staining, respectively. In addition, survival rate
was determined in vitrified and treatment oocytes.
Results Hat expression and AcH4K12 modification significantly increased [4.17 ± 1.27 (P≤0.001) and 97.57 ± 6.30
(P<0.001), respectively] in oocytes that were vitrified, compared to the fresh oocytes. After treatment with AA, the Hat
mRNA expression and subsequently H4K12 acetylation levels were significantly reduced [0.12 ± 0.03 (P≤0.001) and
89.79 ± 3.20 (P≤0.05), respectively] in comparison to the vitrified group. However, the survival rate was not significantly
different between the vitrified (90.47%) and treatment (91.01%) groups (P>0.05).
Conclusion The present study suggests that AA reduces vitrification risks caused by epigenetic modifications, but does not
affect the quality of vitrification. In fact, AA as a Hat inhibitor was effective in reducing the acetylation levels of H4K12.
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Affiliation(s)
- Alaleh Ghazifard
- Department of Reproductive Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Salehi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.Electronic Address:
| | - Marefat Ghaffari Novin
- Department of Reproductive Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.Electronic Address:
| | - Somayeh Keshavarzi
- Department of Reproductive Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Fallah Omrani
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Reza Masteri Farahani
- Department of Reproductive Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Hosseini
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic Address:
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