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Sun JT, Liu JH, Jiang XQ, Luo X, Yuan JD, Zhang Q, Qi XY, Lee S, Liu ZH, Jin JX. Tannin Reduces the Incidence of Polyspermic Penetration in Porcine Oocytes. Antioxidants (Basel) 2022; 11:antiox11102027. [PMID: 36290750 PMCID: PMC9598560 DOI: 10.3390/antiox11102027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 12/03/2022] Open
Abstract
Tannin (TA) improves porcine oocyte cytoplasmic maturation and subsequent embryonic development after in vitro fertilization (IVF). However, the mechanism through which TA blocks polyspermy after IVF remains unclear. Hence, the biological function of organelles (cortical granule [CG], Golgi apparatus, endoplasmic reticulum [ER], and mitochondria) and the incidence of polyspermic penetration were examined. We found no significant difference in oocyte nuclear maturation among the 1 µg/mL, 10 µg/mL TA, and control groups. Moreover, 100 μg/mL TA significantly reduced 1st polar body formation rate compared to the other groups. Additionally, 1 and 10 μg/mL TA significantly increased the protein levels of GDF9, BMP15, and CDK1 compared to the control and 100 μg/mL TA groups. Interestingly, 1 and 10 μg/mL TA improved the normal distribution of CGs, Golgi, ER, and mitochondria by upregulating organelle-related gene expression and downregulating ER stress (CHOP) gene expression. Simultaneously, 1 and 10 μg/mL TA significantly increased the proportion of normal fertilized oocytes (2 pronuclei; 2 PN) and blastocyst formation rate compared to the control, as well as that of 100 μg/mL TA after IVF by upregulating polyspermy-related genes. In conclusion, TA during IVM enhances 2PN and blastocyst formation rates by regulating organelles’ functions and activities.
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Affiliation(s)
- Jing-Tao Sun
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Jia-Hui Liu
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Xi-Qing Jiang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Xin Luo
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Jin-Dong Yuan
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Qi Zhang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Xin-Yue Qi
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Sanghoon Lee
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Zhong-Hua Liu
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
- Correspondence: (Z.-H.L.); (J.-X.J.)
| | - Jun-Xue Jin
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin 150030, China
- Correspondence: (Z.-H.L.); (J.-X.J.)
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2
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Tannin Supplementation Improves Oocyte Cytoplasmic Maturation and Subsequent Embryo Development in Pigs. Antioxidants (Basel) 2021; 10:antiox10101594. [PMID: 34679729 PMCID: PMC8533281 DOI: 10.3390/antiox10101594] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 01/18/2023] Open
Abstract
To investigate the effects of tannins (TA) on porcine oocyte in vitro maturation (IVM), different concentrations of TA (0, 1, 10 and 100 μg/mL) were supplemented with a maturation medium and the COCs and subsequent embryonic development were examined. The results showed that 10 µg/mL TA significantly improved the cumulus expansion index (CEI), cumulus-expansion-related genes (PTGS1, PTGS2, PTX-3, TNFAIP6 and HAS2) expression and blastocyst formation rates after parthenogenetic activation (PA), in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT) compared to the control groups, but not oocyte nuclear maturation. Nevertheless, 10 µg/mL TA dramatically enhanced the mRNA expression of oocyte-development-related genes (BMP15, GDF9, CDC2 and CYCLIN B1), GSH, ATP, SOD1, PGC1α, BMP15, GDF9 and CDC2 levels and reduced intracellular ROS level in porcine oocytes. These results indicated that porcine oocyte cytoplasmic maturation was improved by 10 µg/mL TA treatment during IVM. In contrast, a high concentration of TA (100 μg/mL) significantly decreased the CEI and PTGS1, PTGS2, PTX-3 and HAS2 mRNA expressions in cumulus cells, and reduced oocyte nuclear maturation and the total cell numbers/blastocyst. In general, these data showed that 10 μg/mL TA supplementation has beneficial effects on oocyte cytoplasmic maturation and subsequent embryonic development in pigs.
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3
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Luo L, Dang Y, Shi Y, Zhao P, Zhang Y, Zhang K. SIN3A Regulates Porcine Early Embryonic Development by Modulating CCNB1 Expression. Front Cell Dev Biol 2021; 9:604232. [PMID: 33692994 PMCID: PMC7937639 DOI: 10.3389/fcell.2021.604232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/20/2021] [Indexed: 11/13/2022] Open
Abstract
SIN3A is the central scaffold protein of the SIN3/histone deacetylase (HDAC) transcriptional repressor complex. SIN3A participates in the mouse preimplantation development by fine-tuning HDAC1 expression. However, it remains unresolved if this functional significance of SIN3A was conserved in other mammals. Herein, RNA-seq results show a large amount of SIN3A mRNA is present in oocytes and early embryos prior to embryonic genome activation and a low amount thereafter, suggesting a maternal origin of SIN3A in pigs, cattle, mice, and humans. Interestingly, immunofluorescence data show that SIN3A protein level peaks at four-cell stage in pigs compared with morula stage in cattle. SIN3A depletion in early embryos causes a developmental arrest at two-cell stage in pigs but does not affect bovine early embryonic development. In contrast with mouse data, SIN3A depletion results in only a slight decrease and even no difference in HDAC1 expression in porcine and bovine early embryos, respectively. In addition, HDAC1 knockdown does not cause two-cell block but leads to a reduced blastocyst rate. By using unbiased RNA-seq approach, we found that Cyclin B1 (CCNB1) transcript level is dramatically reduced. Moreover, CCNB1 knockdown results in a similar phenotype as SIN3A depletion. Injection of exogenous CCNB1 mRNA into SIN3A-depleted embryos could partly rescue embryonic development to pass two-cell stage. In conclusion, our results indicate SIN3A plays an essential role in porcine early embryonic development, which probably involves the regulation of CCNB1 expression.
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Affiliation(s)
- Lei Luo
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yan Shi
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yunhai Zhang
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
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4
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Synergistic effects of resveratrol and melatonin on in vitro maturation of porcine oocytes and subsequent embryo development. Theriogenology 2018; 114:191-198. [DOI: 10.1016/j.theriogenology.2018.03.040] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/20/2018] [Accepted: 03/29/2018] [Indexed: 12/31/2022]
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5
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Conti M, Franciosi F. Acquisition of oocyte competence to develop as an embryo: integrated nuclear and cytoplasmic events. Hum Reprod Update 2018; 24:245-266. [PMID: 29432538 PMCID: PMC5907346 DOI: 10.1093/humupd/dmx040] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 11/01/2017] [Accepted: 12/15/2017] [Indexed: 12/12/2022] Open
Abstract
Infertility affects ~7% of couples of reproductive age with little change in incidence in the last two decades. ART, as well as other interventions, have made major strides in correcting this condition. However, and in spite of advancements in the field, the age of the female partner remains a main factor for a successful outcome. A better understanding of the final stages of gamete maturation yielding an egg that can sustain embryo development and a pregnancy to term remains a major area for improvement in the field. This review will summarize the major cellular and molecular events unfolding at the oocyte-to-embryo transition. We will provide an update on the most important processes/pathways currently understood as the basis of developmental competence, including the molecular processes involved in mRNA storage, its recruitment to the translational machinery, and its degradation. We will discuss the hypothesis that the translational programme of maternal mRNAs plays a key role in establishing developmental competence. These regulations are essential to assemble the machinery that is used to establish a totipotent zygote. This hypothesis further supports the view that embryogenesis begins during oogenesis. A better understanding of the events required for developmental competence will guide the development of novel strategies to monitor and improve the success rate of IVF. Using this information, it will be possible to develop new biomarkers that may be used to better predict oocyte quality and in selection of the best egg for IVF.
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Affiliation(s)
- Marco Conti
- Department of OBGYN-RS, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0556, USA
| | - Federica Franciosi
- Department of OBGYN-RS, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0556, USA
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Effect of Kisspeptin on the Developmental Competence and Early Transcript Expression in Porcine Oocytes Parthenogenetically Activated with Different Methods. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3693602. [PMID: 29682539 PMCID: PMC5841116 DOI: 10.1155/2018/3693602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/10/2018] [Accepted: 01/17/2018] [Indexed: 12/02/2022]
Abstract
Recent studies showed the modulatory effect of kisspeptin (KP) on calcium waves through the cell membrane and inside the cell. Spermatozoon can induce similar ooplasmic calcium oscillations at fertilization to trigger meiosis II. Here, we evaluated the effect of KP supplementation with 6-dimethylaminopurine (6-DMAP) for 4 h on embryonic development after oocyte activation with single electric pulse, 5 µM ionomycin, or 8% ethanol. Compared to control nonsupplemented groups, KP significantly improved embryo developmental competence electric- and ethanol-activated oocytes in terms of cleavage (75.3% and 58.6% versus 64% and 48%, respectively, p < 0.05) and blastocyst development (31.3% and 10% versus 19.3% and 4%, respectively, p < 0.05). MOS expression was increased in electrically activated oocytes in presence of KP while it significantly reduced CCNB1 expression. In ionomycin treated group, both MOS and CCNB1 showed significant increase with no difference between KP and control groups. In ethanol-treated group, KP significantly reduced CCNB1 but no effect was observed on MOS expression. The early alterations in MOS and CCNB1 mRNA transcripts caused by KP may explain the significant differences in the developmental competence between the experimental groups. Kisspeptin supplementation may be adopted in protocols for porcine oocyte activation through electric current and ethanol to improve embryonic developmental competence.
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7
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Shi M, Cheng J, He Y, Jiang Z, Bodinga BM, Liu B, Chen H, Li Q. Effect of FH535 on in vitro
maturation of porcine oocytes by inhibiting WNT signaling pathway. Anim Sci J 2017; 89:631-639. [DOI: 10.1111/asj.12982] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 02/26/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Meihong Shi
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Jianyong Cheng
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Yamei He
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Zhongliang Jiang
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Bello M. Bodinga
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Boyang Liu
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Huali Chen
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - Qingwang Li
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
- College of Environment and Chemistry Engineering; Yanshan University; Qinhuangdao Hebei China
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8
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Activity of MPF and expression of its related genes in mouse MI oocytes exposed to cadmium. Food Chem Toxicol 2017; 112:332-341. [PMID: 29287790 DOI: 10.1016/j.fct.2017.12.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 12/05/2017] [Accepted: 12/22/2017] [Indexed: 11/20/2022]
Abstract
Research has revealed that cadmium can disrupt ovarian function; however, few reports have focused on MI oocytes meiotic progression, especially the activity of maturation promoting factor (MPF) and its related genes (Cdk1, Ccnb1, and Cdc25b) expression. In this study, GV oocytes cultured in vitro for 0, 6, and 9 hours with five groups (control and doses of 0.05, 0.5, 2.5, and 5 μM Cd). At the same dose of cadmium but different exposure time: compared with 0h, Periodic changes in MPF activity were changed and continuously increased over time. The mRNA and protein expression of each MPF-related gene in different cadmium dose groups were changed compared with that of 0h. At the same exposure time but different dose of cadmium: compared with control group, MPF activity, mRNA and protein expressions of each MPF-related gene in all the cadmium exposure groups were increased at 9h after exposure. Cadmium maintains the high MPF activity in mouse MI oocytes during its meiotic process and disturbs the periodic change of MPF activity; meanwhile, cadmium exposure promotes the syntheses of MPF-related gene, which may be one of the molecular mechanisms for the maintenance of high MPF activity, and ultimately prevents the meiotic progression in oocytes.
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Yang Y, Yang CR, Han SJ, Daldello EM, Cho A, Martins JPS, Xia G, Conti M. Maternal mRNAs with distinct 3' UTRs define the temporal pattern of Ccnb1 synthesis during mouse oocyte meiotic maturation. Genes Dev 2017; 31:1302-1307. [PMID: 28808066 PMCID: PMC5580652 DOI: 10.1101/gad.296871.117] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 07/14/2017] [Indexed: 12/02/2022]
Abstract
In this study, Yang et al. find that the timing of Ccnb1 mRNA translation in mouse oocytes is dependent on the presence of transcripts with different 3′ UTRs. Their results reveal an additional layer of translation control through alternative polyadenylation usage required to fine-tune the timing of meiosis progression. The final stages of female gamete maturation occur in the virtual absence of transcription, with gene expression driven by a program of selective unmasking, translation, and degradation of maternal mRNAs. Here we demonstrate that the timing of Ccnb1 mRNA translation in mouse oocytes is dependent on the presence of transcripts with different 3′ untranslated regions (UTRs). This 3′ UTR heterogeneity directs distinct temporal patterns of translational activation or repression. Inclusion or exclusion of cis-acting elements is responsible for these divergent regulations. Our findings reveal an additional layer of translation control through alternative polyadenylation usage required to fine-tune the timing of meiosis progression.
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Affiliation(s)
- Ye Yang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University (CAU), Beijing 100193, People's Republic of China.,Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA
| | - Cai-Rong Yang
- Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA
| | - Seung Jin Han
- Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Biological Sciences, Inje University, Gimhae 621-749, Republic of Korea
| | - Enrico Maria Daldello
- Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA
| | - Ara Cho
- Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA
| | - Joao P Sousa Martins
- Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA
| | - Guoliang Xia
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University (CAU), Beijing 100193, People's Republic of China
| | - Marco Conti
- Center for Reproductive Sciences, University of California at San Francisco, San Francisco California 94143, USA.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California at San Francisco, San Francisco, California 94143, USA.,Department of Obstetrics and Gynecology and Reproductive Sciences, University of California at San Francisco, San Francisco, California 94143, USA
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Abstract
Because atrazine is a widely used herbicide, its adverse effects on the reproductive system have been extensively researched. In this study, we investigated the effects of atrazine exposure on porcine oocyte maturation and the possible mechanisms. Our results showed that the rates of oocyte maturation significantly decreased after treatment with 200 μM atrazine in vitro. Atrazine treatment resulted in abnormal spindle morphology but did not affect actin distribution. Atrazine exposure not only triggered a DNA damage response but also decreased MPF levels in porcine oocytes. Our results also revealed that atrazine worsened porcine oocyte quality by causing excessive accumulation of superoxide radicals, increasing cathepsin B activity, and decreasing the GSH level and mitochondrial membrane potential. Furthermore, atrazine decreased developmental competence of porcine oocytes up to the blastocyst stage and changed some properties: cell numbers, apoptosis, and related gene expression levels. Collectively, our results indicate that porcine oocyte maturation is defective after atrazine treatment at least through disruption of spindle morphology, MPF activity, and mitochondrial function and via induction of DNA damage, which probably reduces developmental competence.
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11
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Wang YK, Li X, Song ZQ, Yang CX. Methods of RNA preparation affect mRNA abundance quantification of reference genes in pig maturing oocytes. Reprod Domest Anim 2017; 52:722-730. [PMID: 28407308 DOI: 10.1111/rda.12972] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/25/2017] [Indexed: 11/28/2022]
Abstract
To ensure accurate normalization and quantification of target RNA transcripts using reverse transcription quantitative polymerase chain reaction (RT-qPCR), most studies focus on the identification of stably expressed gene(s) as internal reference. However, RNA preparation methods could also be an important factor, especially for test samples of limited quantity (e.g. oocytes). In this study, we aimed to select appropriate reference gene(s), and evaluate the effect of RNA preparation methods on gene expression quantification in porcine oocytes and cumulus cells during in vitro maturation. Expression profiles of seven genes (GAPDH, 18S, YWHAG, BACT, RPL4, HPRT1 and PPIA) were examined, on RNA samples extracted from cumulus cells (RNeasy Kit) and oocytes (RNeasy Kit and Lysis Kit) during in vitro maturation, respectively. Interestingly, different RNA preparation methods were found to potentially affect the quantification of reference gene expression in pig oocytes cultured in vitro. After geNorm analyses, the most suitable genes for normalization were identified, GAPDH/18S for cumulus cells and YWHAG/BACT for oocytes, respectively. Thus, our results provide useful data and information on the selection of better reference genes and RNA preparation method for related functional studies.
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Affiliation(s)
- Y-K Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - X Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Z-Q Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - C-X Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
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12
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Yuan B, Liang S, Kwon JW, Jin YX, Park SH, Wang HY, Sun TY, Zhang JB, Kim NH. The Role of Glucose Metabolism on Porcine Oocyte Cytoplasmic Maturation and Its Possible Mechanisms. PLoS One 2016; 11:e0168329. [PMID: 27997591 PMCID: PMC5173360 DOI: 10.1371/journal.pone.0168329] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 11/30/2016] [Indexed: 12/30/2022] Open
Abstract
In the present study, we investigated the potential role of glucose and pyruvate in the cytoplasmic maturation of porcine oocytes by investigating the effect of glucose and/or pyruvate supplementation, in the presence or absence of 10% porcine follicular fluid (PFF), on meiotic maturation and subsequent embryo development. In the absence of 10% PFF, without exogenous addition of glucose and pyruvate, the medium seemed unable to support maturation. In the presence of 10% PFF, the addition of 5.6 mM glucose and/or 2 mM pyruvate during in vitro maturation of cumulus enclosed oocytes increased MII oocyte and blastocyst rates. In contrast, oocytes denuded of cumulus cells were not able to take full advantage of the glucose in the medium, as only pyruvate was able to increase the MII rate and the subsequent early embryo developmental ability. Treatment of cumulus enclosed oocytes undergoing maturation with 200 μM dehydroepiandrosterone (DHEA), a pentose phosphate pathway inhibitor, or 2 μM iodoacetate (IA), a glycolysis inhibitor, significantly reduced GHS, intra-oocyte ATP, maternal gene expression, and MPF activity levels. DHEA was also able to increase ROS and reduce the levels of NADPH. Moreover, blastocysts of the DHEA- or IA-treated groups presented higher apoptosis rates and markedly lower cell proliferation cell rates than those of the non-treated group. In conclusion, our results suggest that oocytes maturing in the presence of 10% PFF can make full use of energy sources through glucose metabolism only when they are accompanied by cumulus cells, and that pentose phosphate pathway (PPP) and glycolysis promote porcine oocyte cytoplasmic maturation by supplying energy, regulating maternal gene expression, and controlling MPF activity.
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Affiliation(s)
- Bao Yuan
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Shuang Liang
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Jeong-Woo Kwon
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Yong-Xun Jin
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Shun-Ha Park
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Hai-Yang Wang
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Tian-Yi Sun
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Jia-Bao Zhang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- * E-mail: (NHK); (JBZ)
| | - Nam-Hyung Kim
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, China
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, South Korea
- * E-mail: (NHK); (JBZ)
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13
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Wang H, Li R, Zhou X, Xue L, Xu X, Liu B. Genome-Wide Analysis and Functional Characterization of the Polyadenylation Site in Pigs Using RNAseq Data. Sci Rep 2016; 6:36388. [PMID: 27812017 PMCID: PMC5095665 DOI: 10.1038/srep36388] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 10/14/2016] [Indexed: 12/05/2022] Open
Abstract
Polyadenylation, a critical step in the production of mature mRNA for translation in most eukaryotes, involves cleavage and poly(A) tail addition at the 3′ end of mRNAs at the polyadenylation site (PAS). Sometimes, one gene can have more than one PAS, which can produce the alternative polyadenylation (APA) phenomenon and affect the stability, localization and translation of the mRNA. In this study, we discovered 28,363 PASs using pig RNAseq data, with 13,033 located in 7,403 genes. Among the genes, 41% were identified to have more than one PAS. PAS distribution analysis indicated that the PAS position was highly variable in genes. Additionally, the analysis of RNAseq data from the liver and testis showed a difference in their PAS number and usage. RT-PCR and qRT-PCR were performed to confirm our findings by detecting the expression of 3′UTR isoforms for five candidate genes. The analysis of RNAseq data under a different androstenone level and salmonella inoculation indicated that the functional usage of PAS might participate in the immune response and may be related to the androstenone level in pigs. This study provides new insights into pig PAS and facilitates further functional research of PAS.
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Affiliation(s)
- Hongyang Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education &Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Rui Li
- Department of Animal Sciences, Washington State University, Pullman, WA, United States
| | - Xiang Zhou
- Department of Animal Sciences, Washington State University, Pullman, WA, United States
| | - Liyao Xue
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education &Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Xuewen Xu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education &Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Bang Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education &Key Laboratory of Pig Genetics and Breeding of Ministry of Agriculture; Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
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14
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Yuan B, Liang S, Jin YX, Kwon JW, Zhang JB, Kim NH. Progesterone influences cytoplasmic maturation in porcine oocytes developing in vitro. PeerJ 2016; 4:e2454. [PMID: 27672508 PMCID: PMC5028735 DOI: 10.7717/peerj.2454] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/17/2016] [Indexed: 12/11/2022] Open
Abstract
Progesterone (P4), an ovarian steroid hormone, is an important regulator of female reproduction. In this study, we explored the influence of progesterone on porcine oocyte nuclear maturation and cytoplasmic maturation and development in vitro. We found that the presence of P4 during oocyte maturation did not inhibit polar body extrusions but significantly increased glutathione and decreased reactive oxygen species (ROS) levels relative to that in control groups. The incidence of parthenogenetically activated oocytes that could develop to the blastocyst stage was higher (p < 0.05) when oocytes were exposed to P4 as compared to that in the controls. Cell numbers were increased in the P4-treated groups. Further, the P4-specific inhibitor mifepristone (RU486) prevented porcine oocyte maturation, as represented by the reduced incidence (p < 0.05) of oocyte first polar body extrusions. RU486 affected maturation promoting factor (MPF) activity and maternal mRNA polyadenylation status. In general, these data show that P4 influences the cytoplasmic maturation of porcine oocytes, at least partially, by decreasing their polyadenylation, thereby altering maternal gene expression.
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Affiliation(s)
- Bao Yuan
- Department of Laboratory Animal, College of Animal Sciences, Jilin university, Changchun, Jilin, P.R.China.,Department of Animal Sciences, Molecular Embryology Laboratory, Chungbuk National University, Cheongju, Chungbuk, Korea
| | - Shuang Liang
- Department of Animal Sciences, Molecular Embryology Laboratory, Chungbuk National University, Cheongju, Chungbuk, Korea
| | - Yong-Xun Jin
- Department of Laboratory Animal, College of Animal Sciences, Jilin university, Changchun, Jilin, P.R.China.,Department of Animal Sciences, Molecular Embryology Laboratory, Chungbuk National University, Cheongju, Chungbuk, Korea
| | - Jeong-Woo Kwon
- Department of Animal Sciences, Molecular Embryology Laboratory, Chungbuk National University, Cheongju, Chungbuk, Korea
| | - Jia-Bao Zhang
- Department of Laboratory Animal, College of Animal Sciences, Jilin university, Changchun, Jilin, P.R.China
| | - Nam-Hyung Kim
- Department of Laboratory Animal, College of Animal Sciences, Jilin university, Changchun, Jilin, P.R.China.,Department of Animal Sciences, Molecular Embryology Laboratory, Chungbuk National University, Cheongju, Chungbuk, Korea
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15
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Virant-Klun I, Leicht S, Hughes C, Krijgsveld J. Identification of Maturation-Specific Proteins by Single-Cell Proteomics of Human Oocytes. Mol Cell Proteomics 2016; 15:2616-27. [PMID: 27215607 DOI: 10.1074/mcp.m115.056887] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 12/25/2022] Open
Abstract
Oocytes undergo a range of complex processes via oogenesis, maturation, fertilization, and early embryonic development, eventually giving rise to a fully functioning organism. To understand proteome composition and diversity during maturation of human oocytes, here we have addressed crucial aspects of oocyte collection and proteome analysis, resulting in the first proteome and secretome maps of human oocytes. Starting from 100 oocytes collected via a novel serum-free hanging drop culture system, we identified 2,154 proteins, whose function indicate that oocytes are largely resting cells with a proteome that is tailored for homeostasis, cellular attachment, and interaction with its environment via secretory factors. In addition, we have identified 158 oocyte-enriched proteins (such as ECAT1, PIWIL3, NLRP7)(1) not observed in high-coverage proteomics studies of other human cell lines or tissues. Exploiting SP3, a novel technology for proteomic sample preparation using magnetic beads, we scaled down proteome analysis to single cells. Despite the low protein content of only ∼100 ng per cell, we consistently identified ∼450 proteins from individual oocytes. When comparing individual oocytes at the germinal vesicle (GV) and metaphase II (MII) stage, we found that the Tudor and KH domain-containing protein (TDRKH) is preferentially expressed in immature oocytes, while Wee2, PCNA, and DNMT1 were enriched in mature cells, collectively indicating that maintenance of genome integrity is crucial during oocyte maturation. This study demonstrates that an innovative proteomics workflow facilitates analysis of single human oocytes to investigate human oocyte biology and preimplantation development. The approach presented here paves the way for quantitative proteomics in other quantity-limited tissues and cell types. Data associated with this study are available via ProteomeXchange with identifier PXD004142.
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Affiliation(s)
- Irma Virant-Klun
- From the ‡Reproductive Unit, Department of Obstetrics and Gynecology, University Medical Centre Ljubljana, Slajmerjeva 3, 1000 Ljubljana, Slovenia
| | - Stefan Leicht
- §European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Christopher Hughes
- ¶British Columbia Cancer Research Agency, 675 West 10th Avenue, Vancouver, Canada
| | - Jeroen Krijgsveld
- §European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany; ‖German Cancer Research Center and Heidelberg University, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany
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16
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Reyes JM, Ross PJ. Cytoplasmic polyadenylation in mammalian oocyte maturation. WILEY INTERDISCIPLINARY REVIEWS-RNA 2015; 7:71-89. [PMID: 26596258 DOI: 10.1002/wrna.1316] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 10/02/2015] [Accepted: 10/07/2015] [Indexed: 12/21/2022]
Abstract
Oocyte developmental competence is the ability of the mature oocyte to be fertilized and subsequently drive early embryo development. Developmental competence is acquired by completion of oocyte maturation, a process that includes nuclear (meiotic) and cytoplasmic (molecular) changes. Given that maturing oocytes are transcriptionally quiescent (as are early embryos), they depend on post-transcriptional regulation of stored transcripts for protein synthesis, which is largely mediated by translational repression and deadenylation of transcripts within the cytoplasm, followed by recruitment of specific transcripts in a spatiotemporal manner for translation during oocyte maturation and early development. Motifs within the 3' untranslated region (UTR) of messenger RNA (mRNA) are thought to mediate repression and downstream activation by their association with binding partners that form dynamic protein complexes that elicit differing effects on translation depending on cell stage and interacting proteins. The cytoplasmic polyadenylation (CP) element, Pumilio binding element, and hexanucleotide polyadenylation signal are among the best understood motifs involved in CP, and translational regulation of stored transcripts as their binding partners have been relatively well-characterized. Knowledge of CP in mammalian oocytes is discussed as well as novel approaches that can be used to enhance our understanding of the functional and contributing features to transcript CP and translational regulation during mammalian oocyte maturation. WIREs RNA 2016, 7:71-89. doi: 10.1002/wrna.1316 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Juan M Reyes
- Department of Animal Science, University of California, Davis, CA, USA
| | - Pablo J Ross
- Department of Animal Science, University of California, Davis, CA, USA
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17
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German SD, Lee JH, Campbell KH, Sweetman D, Alberio R. Actin Depolymerization Is Associated with Meiotic Acceleration in Cycloheximide-Treated Ovine Oocytes1. Biol Reprod 2015; 92:103. [DOI: 10.1095/biolreprod.114.122341] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 03/12/2015] [Indexed: 11/01/2022] Open
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18
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Komrskova P, Susor A, Malik R, Prochazkova B, Liskova L, Supolikova J, Hladky S, Kubelka M. Aurora kinase A is not involved in CPEB1 phosphorylation and cyclin B1 mRNA polyadenylation during meiotic maturation of porcine oocytes. PLoS One 2014; 9:e101222. [PMID: 24983972 PMCID: PMC4077738 DOI: 10.1371/journal.pone.0101222] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 06/04/2014] [Indexed: 11/18/2022] Open
Abstract
Regulation of mRNA translation by cytoplasmic polyadenylation is known to be important for oocyte maturation and further development. This process is generally controlled by phosphorylation of cytoplasmic polyadenylation element binding protein 1 (CPEB1). The aim of this study is to determine the role of Aurora kinase A in CPEB1 phosphorylation and the consequent CPEB1-dependent polyadenylation of maternal mRNAs during mammalian oocyte meiosis. For this purpose, we specifically inhibited Aurora kinase A with MLN8237 during meiotic maturation of porcine oocytes. Using poly(A)-test PCR method, we monitored the effect of Aurora kinase A inhibition on poly(A)-tail extension of long and short cyclin B1 encoding mRNAs as markers of CPEB1-dependent cytoplasmic polyadenylation. Our results show that inhibition of Aurora kinase A activity impairs neither cyclin B1 mRNA polyadenylation nor its translation and that Aurora kinase A is unlikely to be involved in CPEB1 activating phosphorylation.
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Affiliation(s)
- Pavla Komrskova
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Andrej Susor
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Radek Malik
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Barbora Prochazkova
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Lucie Liskova
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Jaroslava Supolikova
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Stepan Hladky
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Michal Kubelka
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
- * E-mail:
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19
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O'Connor T, Wilmut I, Taylor J. Quantitative Evaluation of Reference Genes for Real-Time PCR DuringIn VitroMaturation of Ovine Oocytes. Reprod Domest Anim 2012; 48:477-83. [DOI: 10.1111/rda.12112] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 09/17/2012] [Indexed: 12/18/2022]
Affiliation(s)
- T O'Connor
- MRC Centre for Regenerative Medicine; The University of Edinburgh; Edinburgh; UK
| | - I Wilmut
- MRC Centre for Regenerative Medicine; The University of Edinburgh; Edinburgh; UK
| | - J Taylor
- MRC Centre for Regenerative Medicine; The University of Edinburgh; Edinburgh; UK
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20
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ZHANG DX, PARK WJ, SUN SC, XU YN, LI YH, CUI XS, KIM NH. Regulation of Maternal Gene Expression by MEK/MAPK and MPF Signaling in Porcine Oocytes During In Vitro Meiotic Maturation. J Reprod Dev 2011; 57:49-56. [DOI: 10.1262/jrd.10-087h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Won-Jun PARK
- Department of Animal Sciences, Chungbuk National University
| | - Shao-Chen SUN
- Department of Animal Sciences, Chungbuk National University
| | - Yong-Nan XU
- Department of Animal Sciences, Chungbuk National University
| | - Ying-Hua LI
- Department of Animal Sciences, Chungbuk National University
| | - Xiang-Shun CUI
- Department of Animal Sciences, Chungbuk National University
| | - Nam-Hyung KIM
- Department of Animal Sciences, Chungbuk National University
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21
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Zhang DX, Li XP, Sun SC, Shen XH, Cui XS, Kim NH. Involvement of ER-calreticulin-Ca2+
signaling in the regulation of porcine oocyte meiotic maturation and maternal gene expression. Mol Reprod Dev 2010; 77:462-71. [DOI: 10.1002/mrd.21166] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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