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CENP-F-dependent DRP1 function regulates APC/C activity during oocyte meiosis I. Nat Commun 2022; 13:7732. [PMID: 36513638 PMCID: PMC9747930 DOI: 10.1038/s41467-022-35461-5] [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: 02/28/2021] [Accepted: 12/05/2022] [Indexed: 12/15/2022] Open
Abstract
Chromosome segregation is initiated by cohesin degradation, which is driven by anaphase-promoting complex/cyclosome (APC/C). Chromosome cohesin is removed by activated separase, with the degradation of securin and cyclinB1. Dynamin-related protein 1 (DRP1), a component of the mitochondrial fission machinery, is related to cyclin dynamics in mitosis progression. Here, we show that DRP1 is recruited to the kinetochore by centromeric Centromere protein F (CENP-F) after nuclear envelope breakdown in mouse oocytes. Loss of DRP1 during prometaphase leads to premature cohesin degradation and chromosome segregation. Importantly, acute DRP1 depletion activates separase by initiating cyclinB1 and securin degradation during the metaphase-to-anaphase transition. Finally, we demonstrate that DRP1 is bound to APC2 to restrain the E3 ligase activity of APC/C. In conclusion, DRP1 is a CENP-F-dependent atypical spindle assembly checkpoint (SAC) protein that modulates metaphase-to-anaphase transition by controlling APC/C activity during meiosis I in oocytes.
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2
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Tian Y, Liu X, Pei X, Gao H, Pan P, Yang Y. Mechanism of Mitochondrial Homeostasis Controlling Ovarian Physiology. Endocrinology 2022; 164:6828017. [PMID: 36378567 DOI: 10.1210/endocr/bqac189] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Indexed: 11/17/2022]
Abstract
Ovarian cells, including oocytes, granulosa/cumulus cells, theca cells, and stromal cells, contain abundant mitochondria, which play indispensable roles in the processes of ovarian follicle development. Ovarian function is closely controlled by mitochondrial proteostasis and mitostasis. While mitochondrial proteostasis and mitostasis are disturbed by several factors, leading to dysfunction of ovarian function and initiating the mitochondrial unfolded protein response (UPRmt) and mitophagy to maintain or recover ovarian function and mitochondrial function, clear interactions between the 2 pathways in the ovary have not been fully elucidated. Here, we comprehensively summarize the molecular networks or regulatory mechanisms behind further mitochondrial research in the ovary. This review provides novel insights into the interactions between the UPRmt and mitophagy in ovarian functions.
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Affiliation(s)
- Yuan Tian
- Clinical Medical College, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Xinrui Liu
- Clinical Medical College, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Xiuying Pei
- Clinical Medical College, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Hui Gao
- Clinical Medical College, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Pengge Pan
- Clinical Medical College, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Yanzhou Yang
- Clinical Medical College, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
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Bajia D, Bottani E, Derwich K. Effects of Noonan Syndrome-Germline Mutations on Mitochondria and Energy Metabolism. Cells 2022; 11:cells11193099. [PMID: 36231062 PMCID: PMC9563972 DOI: 10.3390/cells11193099] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/21/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
Noonan syndrome (NS) and related Noonan syndrome with multiple lentigines (NSML) contribute to the pathogenesis of human diseases in the RASopathy family. This family of genetic disorders constitute one of the largest groups of developmental disorders with variable penetrance and severity, associated with distinctive congenital disabilities, including facial features, cardiopathies, growth and skeletal abnormalities, developmental delay/mental retardation, and tumor predisposition. NS was first clinically described decades ago, and several genes have since been identified, providing a molecular foundation to understand their physiopathology and identify targets for therapeutic strategies. These genes encode proteins that participate in, or regulate, RAS/MAPK signalling. The RAS pathway regulates cellular metabolism by controlling mitochondrial homeostasis, dynamics, and energy production; however, little is known about the role of mitochondrial metabolism in NS and NSML. This manuscript comprehensively reviews the most frequently mutated genes responsible for NS and NSML, covering their role in the current knowledge of cellular signalling pathways, and focuses on the pathophysiological outcomes on mitochondria and energy metabolism.
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Affiliation(s)
- Donald Bajia
- Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Ul. Fredry 10, 61701 Poznan, Poland
| | - Emanuela Bottani
- Department of Diagnostics and Public Health, Section of Pharmacology, University of Verona, Piazzale L. A. Scuro 10, 37134 Verona, Italy
- Correspondence: (E.B.); (K.D.); Tel.: +39-3337149584 (E.B.); +48-504199285 (K.D.)
| | - Katarzyna Derwich
- Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Ul. Fredry 10, 61701 Poznan, Poland
- Correspondence: (E.B.); (K.D.); Tel.: +39-3337149584 (E.B.); +48-504199285 (K.D.)
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GAS6 ameliorates advanced age-associated meiotic defects in mouse oocytes by modulating mitochondrial function. Aging (Albany NY) 2021; 13:18018-18032. [PMID: 34310342 PMCID: PMC8351714 DOI: 10.18632/aging.203328] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/08/2021] [Indexed: 11/25/2022]
Abstract
Previously, we reported that the silencing of growth arrest-specific gene 6 (Gas6) expression in oocytes impairs cytoplasmic maturation by suppressing mitophagy and inducing mitochondrial dysfunction, resulting in fertilization failure. Here, we show that oocyte aging is accompanied by an increase in meiotic defects associated with chromosome misalignment and abnormal spindle organization. Intriguingly, decreased Gas6 mRNA and protein expression were observed in aged oocytes from older females. We further explored the effect of GAS6 on the quality and fertility of aged mouse oocytes using a GAS6 rescue analysis. After treatment with the GAS6 protein, aged oocytes matured normally to the meiosis II (MII) stage. Additionally, maternal age-related meiotic defects were reduced by GAS6 protein microinjection. Restoring GAS6 ameliorated the mitochondrial dysfunction induced by maternal aging. Ultimately, GAS6-rescued MII oocytes exhibited increased ATP levels, reduced ROS levels and elevated glutathione (GSH) levels, collectively indicating improved mitochondrial function in aged oocytes. Thus, the age-associated decrease in oocyte quality was prevented by restoring GAS6. Importantly, GAS6 protein microinjection in aged oocytes also rescued fertility. We conclude that GAS6 improves mitochondrial function to achieve sufficient cytoplasmic maturation and attenuates maternal age-related meiotic errors, thereby efficiently safeguarding oocyte quality and fertility.
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MERTK-Mediated LC3-Associated Phagocytosis (LAP) of Apoptotic Substrates in Blood-Separated Tissues: Retina, Testis, Ovarian Follicles. Cells 2021; 10:cells10061443. [PMID: 34207717 PMCID: PMC8229618 DOI: 10.3390/cells10061443] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 01/22/2023] Open
Abstract
Timely and efficient elimination of apoptotic substrates, continuously produced during one’s lifespan, is a vital need for all tissues of the body. This task is achieved by cells endowed with phagocytic activity. In blood-separated tissues such as the retina, the testis and the ovaries, the resident cells of epithelial origin as retinal pigmented epithelial cells (RPE), testis Sertoli cells and ovarian granulosa cells (GC) provide phagocytic cleaning of apoptotic cells and cell membranes. Disruption of this process leads to functional ablation as blindness in the retina and compromised fertility in males and females. To ensure the efficient elimination of apoptotic substrates, RPE, Sertoli cells and GC combine various mechanisms allowing maintenance of tissue homeostasis and avoiding acute inflammation, tissue disorganization and functional ablation. In tight cooperation with other phagocytosis receptors, MERTK—a member of the TAM family of receptor tyrosine kinases (RTK)—plays a pivotal role in apoptotic substrate cleaning from the retina, the testis and the ovaries through unconventional autophagy-assisted phagocytosis process LAP (LC3-associated phagocytosis). In this review, we focus on the interplay between TAM RTKs, autophagy-related proteins, LAP, and Toll-like receptors (TLR), as well as the regulatory mechanisms allowing these components to sustain tissue homeostasis and prevent functional ablation of the retina, the testis and the ovaries.
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Idrees M, Kumar V, Joo MD, Ali N, Lee KW, Kong IK. SHP2 Nuclear/Cytoplasmic Trafficking in Granulosa Cells Is Essential for Oocyte Meiotic Resumption and Maturation. Front Cell Dev Biol 2021; 8:611503. [PMID: 33553147 PMCID: PMC7862566 DOI: 10.3389/fcell.2020.611503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/30/2020] [Indexed: 12/21/2022] Open
Abstract
Src-homology-2-containing phosphotyrosine phosphatase (SHP2), a classic cytoplasmic protein and a major regulator of receptor tyrosine kinases and G protein-coupled receptors, plays a significant role in preimplantation embryo development. In this study, we deciphered the role of SHP2 in the somatic compartment of oocytes during meiotic maturation. SHP2 showed nuclear/cytoplasmic localization in bovine cumulus and human granulosa (COV434) cells. Follicle-stimulating hormone (FSH) treatment significantly enhanced cytoplasmic SHP2 localization, in contrast to the E2 treatment, which augmented nuclear localization. Enhanced cytoplasmic SHP2 was found to negatively regulate the expression of the ERα-transcribed NPPC and NPR2 mRNAs, which are vital for oocyte meiotic arrest. The co-immunoprecipitation results revealed the presence of the SHP2/ERα complex in the germinal vesicle-stage cumulus-oocyte complexes, and this complex significantly decreased with the progression of meiotic maturation. The complex formation between ERα and SHP2 was also confirmed by using a series of computational modeling methods. To verify the correlation between SHP2 and NPPC/NPR2, SHP2 was knocked down via RNA interference, and NPPC and NPR2 mRNAs were analyzed in the control, E2, and FSH-stimulated COV434 cells. Furthermore, phenyl hydrazonopyrazolone sulfonate 1, a site-directed inhibitor of active SHP2, showed no significant effect on the ERα-transcribed NPPC and NPR2 mRNAs. Taken together, these findings support a novel nuclear/cytoplasmic role of SHP2 in oocyte meiotic resumption and maturation.
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Affiliation(s)
- Muhammad Idrees
- Division of Applied Life Science (BK21 Four), Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju, South Korea
| | - Vikas Kumar
- Division of Applied Life Science, Department of Bio and Medical Big Data (BK21 Four), Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), Jinju, South Korea
| | - Myeong-Don Joo
- Division of Applied Life Science (BK21 Four), Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju, South Korea
| | - Niaz Ali
- Institute of Basic Medical Sciences, Khybar Medical University, Peshawar, Pakistan
| | - Keun-Woo Lee
- Division of Applied Life Science, Department of Bio and Medical Big Data (BK21 Four), Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), Jinju, South Korea
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Four), Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju, South Korea.,The King Kong Corp. Ltd., Gyeongsang National University, Jinju, South Korea
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Shen Q, Liu Y, Li H, Zhang L. Effect of mitophagy in oocytes and granulosa cells on oocyte quality†. Biol Reprod 2020; 104:294-304. [PMID: 33079172 DOI: 10.1093/biolre/ioaa194] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 09/10/2020] [Accepted: 10/20/2020] [Indexed: 12/25/2022] Open
Abstract
Mitophagy is the process by which cells selectively remove supernumerary or damaged mitochondria through autophagy, and is crucial for mitochondrial homeostasis and cell survival. Mitochondria play vital roles in determining the developmental competence of oocytes. During the early stages of oogenesis, aberrant mitochondria can be removed by mitophagy. After oocyte formation, mitophagy is not actively initiated to clear damaged mitochondria despite the presence of mitophagy regulators in oocytes, which leads to the transmission of dysfunctional mitochondria from the oocyte to the embryo. However, granulosa cells around oocytes can improve mitochondrial function through mitophagy, thereby improving oocyte developmental capacity. Furthermore, this review discusses recent work on the substances and environmental conditions that affect mitophagy in oocytes and granulosa cells, thus providing new directions for improving oocyte quality during assisted reproductive technology treatment.
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Affiliation(s)
- Qiuzi Shen
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yu Liu
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Honggang Li
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Ling Zhang
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
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Zhou CX, Wang Y, Shi LY, Wang ZB, Ma Y, Li CR, Zhang NN, Zhang YX, Zhang F, Zhang D, Xia ZR. GTPases Arf5 and Arl2 function partially distinctly during oocyte meiosis. J Cell Biochem 2020; 122:198-208. [PMID: 32985032 DOI: 10.1002/jcb.29839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 07/09/2020] [Accepted: 07/30/2020] [Indexed: 01/11/2023]
Abstract
Mammalian female meiosis must be tightly regulated to produce high-quality mature oocytes for subsequent regular fertilization and healthy live birth of the next generation. GTPases control many important signal pathways involved in diverse cellular activities. ADP-ribosylation factor family members (Arfs) in mice possess GTPase activities, and some members have been found to function in meiosis. However, whether other Arfs play a role in meiosis is unknown. In this study, we found that Arl2 and Arf5 are the richest among Arfs in mouse oocytes, and they are more abundant in oocytes than in granular cells. Furthermore, Arl2 and Arf5 depletion both impeded meiotic progression, but by affecting spindles and microfilaments, respectively. Moreover, Arl2 and Arf5 depletion both significantly increased regular reactive oxygen species levels and decreased mitochondrial membrane potential and autophagy, indicating that oocyte quality was damaged by Arl2 and Arf5 depletion. These results suggest that Arl2 and Arf5 are two novel essential GTPases required for oocyte meiosis and quality control.
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Affiliation(s)
- Chun-Xiang Zhou
- Drum Tower Hospital Affiliated to Medical College of Nanjing University, Nanjing, Jiangsu, China
| | - Yang Wang
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Li-Ya Shi
- Tongji University School of Medicine, Shanghai East Hospital, Shanghai, Pudong, China
| | - Zi-Bin Wang
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yang Ma
- The Second Hospital of Changzhou, Nanjing Medical University, Changzhou, Jiangsu, China
| | - Cong-Rong Li
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Na-Na Zhang
- Nanjing Medical University, Nanjing, Jiangsu, China
| | | | - Fenli Zhang
- College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, China
| | - Dong Zhang
- Nanjing Medical University, Nanjing, Jiangsu, China
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9
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Sekula M, Tworzydlo W, Bilinski SM. Morphogenesis of the Balbiani body in developing oocytes of an orthopteran, Metrioptera brachyptera, and multiplication of female germline mitochondria. J Morphol 2020; 281:1142-1151. [PMID: 32767591 DOI: 10.1002/jmor.21242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/19/2020] [Accepted: 07/17/2020] [Indexed: 12/23/2022]
Abstract
Balbiani body (Bb) is a female germline specific organelle complex. Although the morphology and morphogenesis of the Bb have been analyzed in numerous vertebrate and invertebrate species, the role and ultimate fate of this organelle assemblage are still under debate. As a result, various functions have been attributed to the Bb in given animal lineages or even species. Our analyses showed that in the bush cricket, Metrioptera brachyptera, the Bb is an elaborate and highly dynamic structure positioned at one side of the oocyte nucleus. It forms in early previtellogenic oocytes and consists of two compartments: perinuclear and cytoplasmic. In the cytoplasmic compartment, characteristic complexes of nuage and polymorphous mitochondria are present. Computer-aided 3D reconstructions revealed that mitochondria clustered around neighboring nuage accumulations remain in a physical contact and form an extensive, though dispersed network. As oogenesis progresses, nuage/mitochondria complexes are partitioned into progressively smaller entities that become separated from each other. Concurrently, the mitochondrial network splits into small individual mitochondria populating the whole ooplasm. Immunohistochemical analysis showed that the latter process involves dynamin-related protein 1 (Drp1). Collectively, our findings suggest that in basal insect species, the Bb might be responsible for the selection as well as multiplication of the oocyte mitochondria.
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Affiliation(s)
- Malgorzata Sekula
- Department of Developmental Biology and Invertebrate Morphology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Krakow, Poland
| | - Waclaw Tworzydlo
- Department of Developmental Biology and Invertebrate Morphology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Krakow, Poland
| | - Szczepan M Bilinski
- Department of Developmental Biology and Invertebrate Morphology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University in Krakow, Krakow, Poland
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Idrees M, Oh SH, Muhammad T, El-Sheikh M, Song SH, Lee KL, Kong IK. Growth Factors, and Cytokines; Understanding the Role of Tyrosine Phosphatase SHP2 in Gametogenesis and Early Embryo Development. Cells 2020; 9:cells9081798. [PMID: 32751109 PMCID: PMC7465981 DOI: 10.3390/cells9081798] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 12/19/2022] Open
Abstract
Growth factors and cytokines have vital roles in germ cell development, gamete maturation, and early embryo development. Cell surface receptors are present for growth factors and cytokines to integrate with and trigger protein signaling in the germ and embryo intracellular milieu. Src-homology-2-containing phosphotyrosine phosphatase (SHP2) is a ubiquitously expressed, multifunctional protein that plays a central role in the signaling pathways involved in growth factor receptors, cytokine receptors, integrins, and G protein-coupled receptors. Over recent decades, researchers have recapitulated the protein signaling networks that influence gamete progenitor specification as well as gamete differentiation and maturation. SHP2 plays an indispensable role in cellular growth, survival, proliferation, differentiation, and migration, as well as the basic events in gametogenesis and early embryo development. SHP2, a classic cytosolic protein and a key regulator of signal transduction, displays unconventional nuclear expression in the genital organs. Several observations provided shreds of evidence that this behavior is essential for fertility. The growth factor and cytokine-dependent roles of SHP2 and its nuclear/cytoplasmic presence during gamete maturation, early embryonic development and embryo implantation are fascinating and complex subjects. This review is intended to summarize the previous and recent knowledge about the SHP2 functions in gametogenesis and early embryo development.
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Affiliation(s)
- Muhammad Idrees
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea; (M.I.); (S.-H.O.); (M.E.-S.)
| | - Seon-Hwa Oh
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea; (M.I.); (S.-H.O.); (M.E.-S.)
| | - Tahir Muhammad
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Marwa El-Sheikh
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea; (M.I.); (S.-H.O.); (M.E.-S.)
- Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Division, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Seok-Hwan Song
- The King Kong Ltd., Gyeongsang National University, Jinju 52828, Korea; (S.-H.S.); (K.-L.L.)
| | - Kyeong-Lim Lee
- The King Kong Ltd., Gyeongsang National University, Jinju 52828, Korea; (S.-H.S.); (K.-L.L.)
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea; (M.I.); (S.-H.O.); (M.E.-S.)
- The King Kong Ltd., Gyeongsang National University, Jinju 52828, Korea; (S.-H.S.); (K.-L.L.)
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Gyeongnam Province, Korea
- Correspondence: ; Tel.: +82-55-772-1942
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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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