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Shin H, Kim S, Kim M, Lee J, Jin D. Quantitative analysis of mitochondrial DNA in porcine-mouse cloned embryos. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2023; 65:767-778. [PMID: 37970504 PMCID: PMC10640950 DOI: 10.5187/jast.2023.e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 11/17/2023]
Abstract
The aim of the research is to identify that porcine oocytes can function as recipients for interspecies cloning and have the ability to develop to blastocysts. Furthermore each mitochondrial DNA (mtDNA) in interspecises cloned embryos was analyzed. For the study, mouse-porcine and porcine-porcine cloned embryos were produced with mouse fetal fibroblasts (MFF) and porcine fetal fibroblasts (PFF), respectively, introduced as donor cells into enucleated porcine oocytes. The developmental rate and cell numbers of blastocysts between intraspecies porcine-porcine and interspecies mouse-porcine cloned embryos were compared and real-time polymerase chain reaction (PCR) was performed for the estimate of mouse and porcine mtDNA copy number in mouse-porcine cloned embryos at different stages.There was no significant difference in the developmental rate or total blastocyst number between mouse-porcine cloned embryos and porcine-porcine cloned embryos (11.1 ± 0.9%, 25 ± 3.5 vs. 10.1 ± 1.2%, 24 ± 6.3). In mouse-porcine reconstructed embryos, the copy numbers of mouse somatic cell-derived mtDNA decreased between the 1-cell and blastocyst stages, whereas the copy number of porcine oocyte-derived mtDNA significantly increased during this period, as assessed by real-time PCR analysis. In our real-time PCR analysis, we improved the standard curve construction-based method to analyze the level of mtDNA between mouse donor cells and porcine oocytes using the copy number of mouse beta-actin DNA as a standard. Our findings suggest that mouse-porcine cloned embryos have the ability to develop to blastocysts in vitro and exhibit mitochondrial heteroplasmy from the 1-cell to blastocyst stages and the mouse-derived mitochondria can be gradually replaced with those of the porcine oocyte in the early developmental stages of mouse-porcine cloned embryos.
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Affiliation(s)
- Hyeonyeong Shin
- Division of Animal & Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Soyeon Kim
- Division of Animal & Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Myungyoun Kim
- Division of Animal & Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Jaeeun Lee
- Division of Animal & Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Dongil Jin
- Division of Animal & Dairy Science,
Chungnam National University, Daejeon 34134, Korea
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Herrick JR, Strauss KJ, Schneiderman A, Rawlins M, Stevens J, Schoolcraft WB, Krisher RL. The beneficial effects of reduced magnesium during the oocyte-to-embryo transition are conserved in mice, domestic cats and humans. Reprod Fertil Dev 2015; 27:323-31. [PMID: 24280268 DOI: 10.1071/rd13268] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 10/17/2013] [Indexed: 11/23/2022] Open
Abstract
In many cell types Mg2+ can antagonise Ca2+ -stimulated signalling pathways, but information regarding the effects of these ions on IVF and subsequent embryonic development is limited. Our objectives were to evaluate the effects of Mg2+ in the IVF medium on embryonic development in mice and then determine if similar effects occurred in domestic cats and humans. Oocytes from hybrid and outbred mice, domestic cats and humans were fertilised (IVF, mice and cats; intracytoplasmic sperm injection (ICSI), humans) in the presence of 0.2 or 1.2 (mouse and human) or 1.0 (cat) mM Mg2+ and the resulting embryos were cultured to the blastocyst stage. Decreased concentrations of Mg2+ during IVF increased (P<0.05) cleavage of oocytes from outbred mice (77.9 vs. 51.0%), development of embryos from hybrid mice (74.5 vs. 51.0% hatching blastocyst per cleaved embryo) and both cleavage (68.4 vs. 46.8%) and blastocyst development (53.0 vs. 26.2% per cleaved embryo) in cats. Development to the blastocyst stage (52.1 vs. 40.2%) was also improved (P<0.05) when ICSI was performed on human oocytes in the presence of 0.2 mM Mg2+, compared with a commercial culture medium. Sensitivity to increased (1.0 to 1.2 mM) concentrations of Mg2+ in the medium during the oocyte-to-embryo transition appears to be conserved in three different species.
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Affiliation(s)
- Jason R Herrick
- National Foundation for Fertility Research, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
| | - Kevin J Strauss
- National Foundation for Fertility Research, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
| | - Ann Schneiderman
- Fertility Laboratories of Colorado, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
| | - Mary Rawlins
- Fertility Laboratories of Colorado, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
| | - John Stevens
- Fertility Laboratories of Colorado, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
| | - William B Schoolcraft
- Colorado Center for Reproductive Medicine, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
| | - Rebecca L Krisher
- National Foundation for Fertility Research, 10290 RidgeGate Cr., Lone Tree, CO 80124, USA
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Shibutani M, Mori T, Miyano T, Miyake M. Removal of O-GlcNAcylation is important for pig preimplantation development. J Reprod Dev 2015; 61:341-50. [PMID: 26004176 PMCID: PMC4547992 DOI: 10.1262/jrd.2014-173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Glucose has been recognized as an energy source for a long time, but it has recently been suggested that the hexosamine biosynthesis pathway (HBP) and downstream protein O-GlcNAcylation have important functions in mouse preimplantation development. Thus, whether or not O-GlcNAcylation was present and what functions O-GlcNAcylation has in pig preimplantation development were investigated in the present study. The expressions of mRNA of glutaminefructose-6-phosphate aminotransferase (Gfpt), O-GlcNAc transferase (Ogt) and O-GlcNAcase (Oga), which are involved in the HBP and O-GlcNAc cycling, were examined in pig parthenogenetic diploids at each preimplantation developmental stage. Gfpt and Ogt were detected in diploids at all stages. Though Oga was detected at all stages except the 4-cell stage, OGA proteins were detected in diploids from the 2-cell to
blastocyst stage. Furthermore, O-GlcNAcylated proteins in MII oocytes and diploids were also detected by immunofluorescence at every stage. Inhibition of OGT by 4.0 mM BADGP did not affect development up to the blastocyst stage, while inhibition of OGA by 300 µM PUGNAc decreased the proportion of diploids beyond the 4-cell stage. Four-cell diploids cultured with PUGNAc until 48 h developed to the blastocyst stage after culture in a PUGNAc-free medium until 144 h after electrostimulation. RNA polymerase II (Pol II) phosphorylation, which indicates the onset of mRNA transcription, was detected in nuclei of diploids in the control group at 48 h but not in the PUGNAc-treated group. These results indicate that HBP and O-GlcNAcylation have important functions in pig preimplantation development and that inhibition of OGA is fatal for development. It is also suggested that OGA inhibition disrupts normal Pol II regulation and may cause a zygotic gene activation error.
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Affiliation(s)
- Mihiro Shibutani
- Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
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Choi I, Dasari A, Kim NH, Campbell KHS. Effects of prolonged exposure of mouse embryos to elevated temperatures on embryonic developmental competence. Reprod Biomed Online 2015; 31:171-9. [PMID: 26093856 DOI: 10.1016/j.rbmo.2015.04.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 04/30/2015] [Accepted: 04/30/2015] [Indexed: 01/15/2023]
Abstract
To investigate effects of heat stress on developmental competence, in-vitro fertilized zygotes were incubated at different temperatures until 96 h post human chorionic gonadotrophin (HCG). Under severe and moderate conditions (41°C and 40°C), most embryos did not overcome the 2-cell block. In long-term mild heat stress (39°C until 96 h post HCG), cleavage and blastocyst formation were comparable to non-heat-stress control, but the number of live pups per transferred embryo and mean litter size were significantly affected (P < 0.05) in the mild-heat-stress group (19.4%, and 5.1 ± 0.4, respectively), compared with control (41.7% and 8.3 ± 0.3, respectively). To elucidate the different competence, gene expression was examined and the numbers of inner cell mass (ICM) and trophectoderm (TE) cells were counted. Aberrant expression of genes for embryonic viability and trophoblast differentiation in the mild-heat-stressed blastocysts was found. Moreover, the expanded blastocysts in the heat-stressed group and the control had a ICM:TE ratio of 1:2.47 and 1:2.96 with average total cell numbers of 59.21 ± 2.38 and 72.79 ± 2.40, respectively (P < 0.05), indicating lower cell numbers in TE. These findings underscore that prevention of heat stress in early embryos is important for maintaining embryo viability embryos during pregnancy.
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Affiliation(s)
- Inchul Choi
- Animal Development and Biotechnology Group, School of Biosciences, The University of Nottingham, Sutton Bonington Campus, Loughborough, UK; Department of Animal Biosystem Sciences, College of Agriculture and Life Sciences, Chungnam National University 305-764, Republic of Korea.
| | - Amarnath Dasari
- Animal Development and Biotechnology Group, School of Biosciences, The University of Nottingham, Sutton Bonington Campus, Loughborough, UK; Taconic Farms Inc., Five University Place Rensselaer, NY 12144-3439, USA
| | - Nam-Hyung Kim
- Department of Animal Sciences, Chungbuk National University, Gaesin-dong, Cheongju, Chungbuk. 361-763, Republic of Korea
| | - Keith H S Campbell
- Animal Development and Biotechnology Group, School of Biosciences, The University of Nottingham, Sutton Bonington Campus, Loughborough, UK
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Recipient of the 2015 IETS Pioneer Award: Keith Henry Stockman Campbell, PhD. Reprod Fertil Dev 2014; 27:xxvi-xxviii. [PMID: 25472414 DOI: 10.1071/rdv27n1_pa2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Gupta MK, Das ZC, Heo YT, Joo JY, Chung HJ, Song H, Kim JH, Kim NH, Lee HT, Ko DH, Uhm SJ. Transgenic chicken, mice, cattle, and pig embryos by somatic cell nuclear transfer into pig oocytes. Cell Reprogram 2013; 15:322-8. [PMID: 23808879 DOI: 10.1089/cell.2012.0074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This study explored the possibility of producing transgenic cloned embryos by interspecies somatic cell nuclear transfer (iSCNT) of cattle, mice, and chicken donor cells into enucleated pig oocytes. Enhanced green florescent protein (EGFP)-expressing donor cells were used for the nuclear transfer. Results showed that the occurrence of first cleavage did not differ significantly when pig, cattle, mice, or chicken cells were used as donor nuclei (p>0.05). However, the rate of blastocyst formation was significantly higher in pig (14.9±2.1%; p<0.05) SCNT embryos than in cattle (6.3±2.5%), mice (4.2±1.4%), or chicken (5.1±2.4%) iSCNT embryos. The iSCNT embryos also contained a significantly less number of cells per blastocyst than those of SCNT pig embryos (p<0.05). All (100%) iSCNT embryos expressed the EGFP gene, as evidenced by the green florescence under ultraviolet (UV) illumination. Microinjection of purified mitochondria from cattle somatic cells into pig oocytes did not have any adverse effect on their postfertilization in vitro development and embryo quality (p>0.05). Moreover, NCSU23 medium, which was designed for in vitro culture of pig embryos, was able to support the in vitro development of cattle, mice, and chicken iSCNT embryos up to the blastocyst stage. Taken together, these data suggest that enucleated pig oocytes may be used as a universal cytoplast for production of transgenic cattle, mice, and chicken embryos by iSCNT. Furthermore, xenogenic transfer of mitochondria to the recipient cytoplast may not be the cause for poor embryonic development of cattle-pig iSCNT embryos.
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Affiliation(s)
- Mukesh Kumar Gupta
- Department of Animal Science and Biotechnology, Sangji Youngseo College, Wonju 220-713, South Korea
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Birth of common marmoset (Callithrix jacchus) offspring derived from in vitro-matured oocytes in chemically defined medium. Theriogenology 2012; 78:1487-93. [DOI: 10.1016/j.theriogenology.2012.06.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 06/13/2012] [Accepted: 06/15/2012] [Indexed: 11/22/2022]
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Rosenfeld CS. Effects of Maternal Diet and Exposure to Bisphenol A on Sexually Dimorphic Responses in Conceptuses and Offspring. Reprod Domest Anim 2012; 47 Suppl 4:23-30. [DOI: 10.1111/j.1439-0531.2012.02051.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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