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Xu X, Yang B, Zhang H, Feng X, Hao H, Du W, Zhu H, Khan A, Khan MZ, Zhang P, Zhao X. Effects of β-Nicotinamide Mononucleotide, Berberine, and Cordycepin on Lipid Droplet Content and Developmental Ability of Vitrified Bovine Oocytes. Antioxidants (Basel) 2023; 12:antiox12050991. [PMID: 37237857 DOI: 10.3390/antiox12050991] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Oocyte vitrification is crucial for livestock reproduction, germplasm conservation, and human-assisted reproduction, but the overabundance of lipids is highly detrimental to oocyte development. It is necessary to reduce the lipid droplet content of oocytes before cryopreservation. This study analyzed the impact of β-nicotinamide mononucleotide (NMN), berberine (BER), or cordycepin (COR) on various aspects of bovine oocytes, including lipid droplet content and the expression levels of genes related to lipid synthesis in bovine oocytes, development ability, reactive oxygen species (ROS), apoptosis, and the expression levels of genes associated with endoplasmic reticulum (ER) stress, and mitochondrial function in vitrified bovine oocytes. The results of our study indicated that 1 μM NMN, 2.5 μM BER, and 1 μM COR were effective in reducing the lipid droplet content and suppressing the expression levels of genes involved in lipid synthesis in bovine oocytes. Our findings showed that the vitrified bovine oocytes treated with 1 μM of NMN had a significantly higher survival rate and better development ability compared to the other vitrified groups. Additionally, 1 μM NMN, 2.5 μM BER, and 1 μM COR decreased the levels of ROS and apoptosis, decreased the mRNA expression levels of genes involved in ER stress and mitochondrial fission but increased the mRNA expression levels of genes associated with mitochondrial fusion in the vitrified bovine oocytes. Our study results suggested that 1 μM NMN, 2.5 μM BER, and 1 μM COR effectively decreased the lipid droplet content and enhanced the development ability of vitrified bovine oocytes by lowering ROS levels, reducing ER stress, regulating mitochondrial function, and inhibiting apoptosis. Furthermore, the results showed that 1 μM NMN was more effective than 2.5 μM BER and 1 μM COR.
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Affiliation(s)
- Xi Xu
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Baigao Yang
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Hang Zhang
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Xiaoyi Feng
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Haisheng Hao
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Weihua Du
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Huabin Zhu
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Adnan Khan
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Muhammad Zahoor Khan
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Peipei Zhang
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
| | - Xueming Zhao
- Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), No.2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, China
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Radhi M, Ashraf S, Lawrence S, Tranholm AA, Wellham PAD, Hafeez A, Khamis AS, Thomas R, McWilliams D, de Moor CH. A Systematic Review of the Biological Effects of Cordycepin. Molecules 2021; 26:5886. [PMID: 34641429 PMCID: PMC8510467 DOI: 10.3390/molecules26195886] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/06/2021] [Accepted: 09/13/2021] [Indexed: 12/15/2022] Open
Abstract
We conducted a systematic review of the literature on the effects of cordycepin on cell survival and proliferation, inflammation, signal transduction and animal models. A total of 1204 publications on cordycepin were found by the cut-off date of 1 February 2021. After application of the exclusion criteria, 791 papers remained. These were read and data on the chosen subjects were extracted. We found 192 papers on the effects of cordycepin on cell survival and proliferation and calculated a median inhibitory concentration (IC50) of 135 µM. Cordycepin consistently repressed cell migration (26 papers) and cellular inflammation (53 papers). Evaluation of 76 papers on signal transduction indicated consistently reduced PI3K/mTOR/AKT and ERK signalling and activation of AMPK. In contrast, the effects of cordycepin on the p38 and Jun kinases were variable, as were the effects on cell cycle arrest (53 papers), suggesting these are cell-specific responses. The examination of 150 animal studies indicated that purified cordycepin has many potential therapeutic effects, including the reduction of tumour growth (37 papers), repression of pain and inflammation (9 papers), protecting brain function (11 papers), improvement of respiratory and cardiac conditions (8 and 19 papers) and amelioration of metabolic disorders (8 papers). Nearly all these data are consistent with cordycepin mediating its therapeutic effects through activating AMPK, inhibiting PI3K/mTOR/AKT and repressing the inflammatory response. We conclude that cordycepin has excellent potential as a lead for drug development, especially for age-related diseases. In addition, we discuss the remaining issues around the mechanism of action, toxicity and biodistribution of cordycepin.
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Affiliation(s)
- Masar Radhi
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham NG7 2RD, UK; (M.R.); (A.A.T.); (D.M.)
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
| | - Sadaf Ashraf
- Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, Aberdeen AB25 2ZD, UK;
| | - Steven Lawrence
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
| | - Asta Arendt Tranholm
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham NG7 2RD, UK; (M.R.); (A.A.T.); (D.M.)
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
| | - Peter Arthur David Wellham
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
| | - Abdul Hafeez
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
| | - Ammar Sabah Khamis
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
| | - Robert Thomas
- The Primrose Oncology Unit, Bedford Hospital NHS Trust, Bedford MK42 9DJ, UK;
- Department of Oncology, Addenbrooke’s Cambridge University Hospitals NHS Trust, Cambridge CB2 0QQ, UK
| | - Daniel McWilliams
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham NG7 2RD, UK; (M.R.); (A.A.T.); (D.M.)
- NIHR Nottingham Biomedical Research Centre (BRC), Nottingham NG5 1PB, UK
| | - Cornelia Huiberdina de Moor
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham NG7 2RD, UK; (M.R.); (A.A.T.); (D.M.)
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (S.L.); (P.A.D.W.); (A.H.); (A.S.K.)
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Seminal plasma modulates the immune-cytokine network in the porcine uterine tissue and pre-ovulatory follicles. PLoS One 2018; 13:e0202654. [PMID: 30153288 PMCID: PMC6112639 DOI: 10.1371/journal.pone.0202654] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 08/07/2018] [Indexed: 01/26/2023] Open
Abstract
Evidence is emerging that the interaction between male seminal fluid and female tissues promotes fertility, pregnancy, and health of offspring. This includes the acceleration of ovulation in a species known as a spontaneous ovulator, the domestic pig. Earlier studies revealed that seminal plasma acts by a local mechanism in the female pig. The aim of the present study was to examine local short-term and mid-term effects of seminal plasma (SP) on mRNA expression of immunoregulatory genes and transcripts associated with follicle- and oocyte maturation. In the porcine animal model, effects on mRNA expression in the female tract and preovulatory follicles were examined. SP suppressed mRNA expression of Prostaglandin-Endoperoxide Synthase 2 (PTGS2) ipsilateral to the infused uterine horn which was associated with a lower presence of immune cells in the uterine epithelium and lower PTGS2 immunoreaction. Depending on the sampling time (2 h vs. 17 h) and hormonal status, SP altered significant correlative relations of mRNA expression between PTGS2 and the transcripts Tumor Necrosis Factor Alpha, Tumor Necrosis Factor Alpha-Induced Protein 6 and Pentraxin 3 in uterus, granulosa and cumulus cells. A modulatory effect of SP on the oocyte gene network comprising eight oocyte transcripts was observed: uterine exposure to SP induced positive correlations (r >0.08, p<0.05) of maturation promoting factors among each other and with cumulus cells on the side of the treated horn. In conclusion, SP orchestrates the gene network regulating the bidirectional communication between oocytes and surrounding somatic cells. The modulation of the immune-cytokine network of the female reproductive system could contribute to the previously reported SP-induced acceleration of ovulation in the porcine species.
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Yang LL, Zhao Y, Luo SM, Ma JY, Ge ZJ, Shen W, Yin S. Toxic effects and possible mechanisms of hydrogen sulfide and/or ammonia on porcine oocyte maturation in vitro. Toxicol Lett 2017; 285:20-26. [PMID: 29292088 DOI: 10.1016/j.toxlet.2017.12.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 12/07/2017] [Accepted: 12/22/2017] [Indexed: 02/08/2023]
Abstract
Previous studies suggest that hydrogen sulfide (H2S) and ammonia (NH3) are two major air pollutants which can cause damage to porcine health. However, the mechanisms underlying toxic effects of these compounds on porcine oocyte maturation are not clear. To clarify the mechanism, we evaluated the oocyte quality by detecting some events during oocytes maturation. In our study, porcine oocytes were cultured with different concentrations of Na2S and/or NH4Cl in vitro and the rate of the first polar body extrusion decreased significantly. Also, actin filament was seriously disrupted to damage the cytoskeleton which resulted in reduced rate of oocyte maturation. We explored the reactive oxygen species (ROS) generation and found that the ROS level was increased significantly after Na2S treatment but not after NH4Cl treatment. Moreover, early stage apoptosis rate was significantly increased and autophagy protein LC3 B expression level was higher in oocytes treated with Na2S and/or NH4Cl, which might be caused by ROS elevation. Additionally, exposure to Na2S and/or NH4Cl also caused ROS generation and early apoptosis in cumulus cells, which might further affect oocyte maturation in vitro. In summary, our data suggested that exposure to H2S and/or NH3 decreased porcine oocyte maturation in vitro, which might be caused by actin disruption, ROS generation, early apoptosis and autophagy.
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Affiliation(s)
- Lei-Lei Yang
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yong Zhao
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shi-Ming Luo
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jun-Yu Ma
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zhao-Jia Ge
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Wei Shen
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shen Yin
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China.
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5
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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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6
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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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Lee SK, Zhao MH, Kwon JW, Li YH, Lin ZL, Jin YX, Kim NH, Cui XS. The association of mitochondrial potential and copy number with pig oocyte maturation and developmental potential. J Reprod Dev 2014; 60:128-35. [PMID: 24492657 PMCID: PMC3999391 DOI: 10.1262/jrd.2013-098] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
ATP is critical for oocyte maturation, fertilization, and subsequent embryo development.
Both mitochondrial membrane potential and copy number expand during oocyte maturation. In
order to differentiate the roles of mitochondrial metabolic activity and mtDNA copy number
during oocyte maturation, we used two inhibitors, FCCP (carbonyl cyanide
p-(tri-fluromethoxy)phenyl-hydrazone) and ddC (2’3-dideoxycytidine), to deplete the
mitochondrial membrane potential (Δφm) and mitochondrial copy number,
respectively. FCCP (2000 nM) reduced ATP production by affecting mitochondrial
Δφm, decreased the mRNA expression of Bmp15 (bone
morphogenetic protein 15), and shortened the poly(A) tails of Bmp15,
Gdf9 (growth differentiation factor 9), and Cyclin B1
transcripts. FCCP (200 and 2000 nM) also affected p34cdc2 kinase activity. By
contrast, ddC did not alter ATP production. Instead, ddC significantly decreased mtDNA
copy number (P < 0.05). FCCP (200 and 2000 nM) also decreased extrusion of the first
polar body, whereas ddC at all concentrations did not affect the ability of immature
oocytes to reach metaphase II. Both FCCP (200 and 2000 nM) and ddC (200 and 2000 µM)
reduced parthenogenetic blastocyst formation compared with untreated oocytes. However,
these inhibitors did not affect total cell number and apoptosis. These findings suggest
that mitochondrial metabolic activity is critical for oocyte maturation and that both
mitochondrial metabolic activity and replication contribute to the developmental
competence of porcine oocytes.
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Affiliation(s)
- Seul-Ki Lee
- Department of Animal Sciences, Chungbuk National University, Cheongju, 361-763, South Korea
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Lin ZL, Li YH, Xu YN, Wang QL, Namgoong S, Cui XS, Kim NH. Effects of Growth Differentiation Factor 9 and Bone Morphogenetic Protein 15 on thein vitroMaturation of Porcine Oocytes. Reprod Domest Anim 2013; 49:219-27. [DOI: 10.1111/rda.12254] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 10/06/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Z-L Lin
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - Y-H Li
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - Y-N Xu
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - Q-L Wang
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - S Namgoong
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - X-S Cui
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
| | - N-H Kim
- Department of Animal Sciences; Chungbuk National University; Cheongju Korea
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Kohata C, Izquierdo-Rico MJ, Romar R, Funahashi H. Development competence and relative transcript abundance of oocytes derived from small and medium follicles of prepubertal gilts. Theriogenology 2013; 80:970-8. [PMID: 23987988 DOI: 10.1016/j.theriogenology.2013.07.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 07/14/2013] [Accepted: 07/15/2013] [Indexed: 11/29/2022]
Abstract
The objective of this study was to examine the competence of mature oocytes aspirated from small follicles (SF, <2 mm in diameter) and medium follicles (MF, 3-6 mm) of abattoir-derived prepubertal gilt ovaries. Oocytes were selected by the presence of the first polar body (1pb) after IVM in a chemically defined medium, for sperm penetration, pronuclear formation, cleavage rate, and development to the blastocyst stage. Relative transcript abundance of genes associated with regulation of oocyte maturation (AURKA, AURKB, and MOS), fertilization (ZP3 and ZP4), maternal effect (NALP9 and HSF1), and anti-apoptosis (BCL2) were also examined in oocytes at germinal vesicle (GV) and metaphase-II (MII) stages. In SF, compared with MF, the maturation rate post-IVM was lower (P < 0.05), but there were no differences in sperm penetration rate (78.2% and 68.5% at 6 hours after insemination and 90.8% and 91.9% at 9 hours after insemination, P = 0.51 and P = 0.67, respectively), the percentage of oocytes that formed both female and male pronuclei (27.9% and 25.8% at 6 hours after insemination and 79.4% and 76.1% at 9 hours after insemination), or cleavage rate at 48 hours after insemination (85.9% and 89.7%, respectively, P = 0.46), whereas blastocyst formation rate was lower (P < 0.05) in oocytes from SF versus MF (14.7% and 31.0%). Transcript abundances decreased (P < 0.05) in all genes examined between the GV and MII stages, although only transcript abundance for MOS was lower (P < 0.05) in GV oocytes from SF versus MF. In conclusion, mature oocytes from SF and MF of prepubertal gilts with a visible 1pb had similar fertilizability in vitro and relative transcript abundance of nine genes. However, follicle size affected meiotic competence, early embryonic development to the blastocyst stage, and transcript abundance of the MOS gene.
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Affiliation(s)
- Chiyuki Kohata
- Department of Animal Science, Graduate School of Natural Science and Technology, Okayama University, Tsushima-Naka, Kita-Ku, Okayama, Japan
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Caixeta ES, Machado MF, Ripamonte P, Price C, Buratini J. Effects of FSH on the expression of receptors for oocyte-secreted factors and members of the EGF-like family during in vitro maturation in cattle. Reprod Fertil Dev 2013; 25:890-9. [DOI: 10.1071/rd12125] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 07/25/2012] [Indexed: 02/02/2023] Open
Abstract
FSH induces expansion of bovine cumulus–oocyte complexes (COCs) in cattle, which can be enhanced by oocyte-secreted factors (OSFs). In this study it was hypothesised that FSH stimulates COC expansion in part from direct stimulation of the epidermal growth factor (EGF)-like ligands amphiregulin (AREG), epiregulin (EREG) and betacellulin (BTC), but also in part through regulation of OSFs or their receptors in cumulus cells. Bovine COCs were cultured in defined medium with graded doses of FSH. In the absence of FSH, COCs did not expand. FSH caused cumulus expansion, and increased the abundance of AREG and EREG mRNA in a time- and dose-dependent manner, but decreased BTC mRNA levels. FSH had modest stimulatory effects on the levels of mRNA encoding the bone morphogenetic protein 15 (BMP15) receptor, BMPR1B, in cumulus cells, but did not alter mRNA expression of the growth and differentiation factor 9 (GDF9) receptor, TGFBR1. More interestingly, FSH dramatically stimulated levels of mRNA encoding two receptors for fibroblast growth factors (FGF), FGFR2C and FGFR3C, in cumulus cells. FSH also stimulated mRNA expression of FGFR1B, but not of FGFR2B in cumulus cells. Based on dose-response studies, FGFR3C was the receptor most sensitive to the influence of FSH. This study demonstrates that FSH stimulates the expression of EGF-like factors in bovine cumulus cells, and provides evidence that FSH differently regulates the expression of distinct receptors for OSFs in cumulus cells.
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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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12
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Sex determination in beetles: production of all male progeny by parental RNAi knockdown of transformer. Sci Rep 2012; 2:602. [PMID: 22924109 PMCID: PMC3426794 DOI: 10.1038/srep00602] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 08/10/2012] [Indexed: 12/22/2022] Open
Abstract
Sex in insects is determined by a cascade of regulators ultimately controlling sex-specific splicing of a transcription factor, Doublesex (Dsx). We recently identified homolog of dsx in the red flour beetle, Tribolium castaneum (Tcdsx). Here, we report on the identification and characterization of a regulator of Tcdsx splicing in T. castaneum. Two male-specific and one female-specific isoforms of T. castaneum transformer (Tctra) were identified. RNA interference-aided knockdown of Tctra in pupa or adults caused a change in sex from females to males by diverting the splicing of Tcdsx pre-mRNA to male-specific isoform. All the pupa and adults developed from Tctra dsRNA injected final instar larvae showed male-specific sexually dimorphic structures. Tctra parental RNAi caused an elimination of females from the progeny resulting in production of all male progeny. Transformer parental RNAi could be used to produce all male population for use in pest control though sterile male release methods.
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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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Cui XS, Shen XH, Lee CK, Kang YK, Wakayama T, Kim NH. Analysis of proteomic profiling of mouse embryonic stem cells derived from fertilized, parthenogenetic and androgenetic blastocysts. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/scd.2011.11001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Dobbs KB, Spollen WG, Springer G, Prather RS. The role of cytoplasmic polyadenylation element sequence on mRNA abundance during porcine embryogenesis and parthenogenetic development. Mol Reprod Dev 2010; 77:699-709. [DOI: 10.1002/mrd.21204] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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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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Zhang DX, Cui XS, Kim NH. Molecular characterization and polyadenylation-regulated expression of cyclin B1 and Cdc2 in porcine oocytes and early parthenotes. Mol Reprod Dev 2010; 77:38-50. [PMID: 19705412 DOI: 10.1002/mrd.21095] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Meiotic maturation of mammalian oocytes is controlled by the maturation/M-phase promotion factor (MPF), a complex of Cdc2 kinase and cyclin B protein. To better understand the molecular mechanism of oocyte maturation, we characterized porcine cyclin B1 and Cdc2 genes, both of which are widely expressed in pig tissues. We further analyzed their expression profiles during in vitro maturation of pig oocyte and early embryonic development at both the mRNA and protein level. Two isoforms of cyclin B1, comprising the same open reading frame but differing in 3'-UTR length, were identified. Cyclin B1 transcripts was up-regulated after 30 hr of maturation, while Cdc2 mRNA levels were unchanged during maturation except for a sharp decline at 44 hr. Cyclin B1 protein synthesis increased with oocyte maturation. Cdc2 protein expression was relatively low during 0-18 hr, followed by a higher level of expression up to 44 hr of maturation. Poly(A)-test PCR clearly revealed that both cyclin B1 isoforms underwent cytoplasmic polyadenylation starting around 18-24 hr during maturation, while a substantial de-adenylation and degradation of Cdc2 isoforms were observed in metaphase II oocytes and during embryo development after parthenogenetic activation. Porcine MII oocytes derived from small follicles (< or = 3 mm) and bad quality 2-cell parthenotes showed lower developmental competence and lower levels of cyclin B1 protein, and Cdc2 mRNA or both gene mRNAs, respectively, compared to their control counterparts. These results suggested that cyclin B1 was regulated posttranscriptionally by cytoplasmic polyadenylation during porcine oocyte maturation. Further, the decreased expression of maternal cyclin B1 and Cdc2 at the mRNA or protein level in developmentally incompetent oocytes and embryos was responsible for, at least in part, a profound defect in further embryonic development.
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Affiliation(s)
- Ding-Xiao Zhang
- Department of Animal Sciences, Chungbuk National University, Chungbuk, South Korea
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