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Effect of high hydrostatic pressure on the in vitro development and molecular quality of transgenic rabbit embryos derived from nano-transfected zygotes. ANNALS OF ANIMAL SCIENCE 2022. [DOI: 10.2478/aoas-2022-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The aim of this study was to evaluate the effect of high hydrostatic pressure (HHP) on the in vitro developmental abilities of nano-transfected rabbit zygotes, their transfection efficiency, and the molecular quality of the blastocysts generated. This quality was assessed by estimating the quantitative profiles of Oct4, Casp7, and Bcl2 mRNA transcripts. The nano-transfection efficiencies of zygotes that had been pre-treated with either 20 MPa or 40 MPa of HHP (13.5% and 13.7%, respectively) were insignificantly lower than those found in zygotes not exposed to HHP prior to their nano-transfection (20.1%; P≥0.05). Moreover, applying HHP treatment with the parameters of 20 MPa and 40 MPa followed by the nano-transfection of zygotes brought about an insignificant decrease in the rates of embryos at the blastocyst stage (30.4% and 23.0%, respectively) as compared to the control group of nano-transfected zygotes (40.4%; P≥0.05). Furthermore, analyzing the transcriptional activity of Oct4, Bcl2, and Casp7 genes revealed that HHP enhances the relative abundance (RA) of all mRNA transcripts in blastocysts derived from non-transfected rabbit zygotes. In turn, the augmented RAs found in the pro-apoptotic Casp7 and anti-apoptotic Bcl-2 transcripts confirmed the onset and progression of programmed cell death in blastocysts developed from nano-transfected zygotes that had undergone HHP pre-treatment. The conceptualization based not only on a novel nano-transfection approach used to genetically modify in vivo-fertilized rabbit zygotes but also on their HHP pre-treatment is elaborated here for the first time, with an emphasis on further investigations aimed at producing transgenic rabbit and other mammalian species embryos by somatic cell cloning.
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Loren P, Sánchez-Villalba E, Risopatrón J, Arias ME, Felmer R, Sánchez R. Induction of oxidative stress does not increase the cryotolerance of vitrified embryos. Anim Reprod Sci 2020; 219:106511. [PMID: 32828397 DOI: 10.1016/j.anireprosci.2020.106511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 10/24/2022]
Abstract
Short-term treatment of mammalian oocytes with different stressors induces stress tolerance of embryos derived from these oocytes. The aims of this study were to evaluate effects on embryo development when there was treatment of oocyte complexes (COCs) used to derive the embryos with hydrogen peroxide (H2O2).The COCs were not incubated with H2O2: control (0 μM), or were incubated with 25, 50, 75, or 100 μM concentrations of H2O2 for 1 h prior to in vitro fertilization, and presumptive zygotes were cultured until day 7. Blastocysts at day 7 of development derived from H2O2-treated (25 μM treatment concentration) COCs were vitrified. Percentage of embryos undergoing cleavage was not affected by any treatment, while percentage of embryos developing to the blastocyst stage was less when there was treatment of COCs with 100 μM of H2O2. Embryo quality was less when COCs used to derive blastocysts were treated with 50, 75, or 100 μM concentrations of H2O2. There were lesser relative abundances of some mRNA transcripts of interest in blastocysts when there was treatment of COCs with H2O2. After vitrification, there were no differences in embryo re-expansion and hatching rates compared with fresh and vitrified blastocysts of the control group and those derived from COCs treated with 25 μM H2O2. In conclusion, treatment of COCs used to derive blastocysts with H2O2 does not induce stress tolerance in vitrified embryos of cattle; however, the viability of these blastocysts is similar to those of the control group.
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Affiliation(s)
- P Loren
- Applied Cellular and Molecular Biology Program, Universidad de La Frontera, Temuco, Chile
| | - E Sánchez-Villalba
- Applied Cellular and Molecular Biology Program, Universidad de La Frontera, Temuco, Chile
| | - J Risopatrón
- Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - M E Arias
- Department of Animal Production, Faculty of Agriculture and Forestry Sciences, Universidad de La Frontera, Temuco, Chile
| | - R Felmer
- Department of Agricultural Sciences and Natural Resources, Faculty of Agriculture and Forestry Sciences, Universidad de La Frontera, Temuco, Chile
| | - R Sánchez
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile.
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Effect of high hydrostatic pressure on mitochondrial activity, reactive oxygen species level and developmental competence of cultured pig embryos. Theriogenology 2019; 140:99-108. [PMID: 31465911 DOI: 10.1016/j.theriogenology.2019.08.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 01/01/2023]
Abstract
High hydrostatic pressure (HHP) has been previously used to increase mammalian oocyte and embryo tolerance on subsequent stresses related with different assisted reproductive technologies. Nevertheless, the mechanisms for HHP-induced stress responses in early embryos have not been yet well understood. Previous studies focused mainly on HHP-modified gene expression while possible changes in cellular functions, including modification of energy metabolism and oxidative stress were neglected. Therefore, we aimed to analyze the effect of HHP treatment on the efficiency of subsequent in vitro pig embryos culture in NCSU-23 medium, on mitochondrial membrane potential (ΔΨm) and reactive oxygen species (ROS) level during their pre-implantation development. Porcine embryos were exposed to the hydrostatic pressure of 20 MPa and their quick response to such stress was analyzed 1 h later. In comparison with control embryos, we detected lower ΔΨm by ∼13% only in expanded blastocysts as well as decreased ROS level by ∼30% and ∼42% at the morula and expanded blastocyst stages, respectively. After HHP-treatment at transcriptionally inactive zygote stage and subsequent embryo culture, long-time responses were found: (1) at expanded blastocyst stage manifesting by ΔΨm decrease by ∼16%, (2) at the morula and expanded blastocyst stages in the form of ROS level reduction by ∼38% and ∼33% respectively. Following HHP stress applied at the transcriptionally active morula stage the long-time response in the expanded blastocysts as a decrease of ΔΨm by ∼19% and ROS level by ∼37% was observed. The percentage of obtained expanded blastocysts was higher after culture of HHP-treated zygotes in comparison to the control. Moreover, expanded blastocysts developed in vitro from both HHP-treated zygotes or morulae, exhibited higher total number of cells per blastocyst, higher number of cells in the inner cell mass as well as lower number of TUNEL-positive nuclei per blastocyst and lower TUNEL index, when compared to untreated embryos. Therefore, the HHP stress applied at the zygote stage, enhances developmental potential and quality of in vitro obtained porcine blastocysts due to the both decreased ΔΨm and ROS level. Our findings may contribute to better understanding of the mechanism of HHP-mediated modifications of energy metabolism and oxidative stress during in vitro development of pig embryos.
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Ortiz-Escribano N, Szymanska KJ, Bol M, Vandenberghe L, Decrock E, Van Poucke M, Peelman L, Van den Abbeel E, Van Soom A, Leybaert L. Blocking connexin channels improves embryo development of vitrified bovine blastocysts. Biol Reprod 2018; 96:288-301. [PMID: 28203704 DOI: 10.1095/biolreprod.116.144121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 12/01/2016] [Accepted: 01/03/2017] [Indexed: 01/13/2023] Open
Abstract
Connexins (Cxs) are required for normal embryo development and implantation. They form gap junctions (GJs) connecting the cytoplasm of adjacent cells and hemichannels (HCs), which are normally closed but open in response to stress conditions. Excessive HC opening is detrimental for cell function and may lead to cell death. We found that hatching of in vitro-produced bovine embryos, matured in serum-containing conditions, was significantly improved when vitrification/warming was done in the presence of Gap26 that targets GJA1 (Cx43) and GJA4 (Cx37). Further work showed that HCs from blastocysts produced after oocyte maturation in the presence of serum were open shortly after vitrification/warming, and this was prevented by Gap26. Gap26, applied for the exposure times used, inhibited Cx43 and Cx37 HCs while it did not have an effect on GJs. Interestingly, Gap26 had no effect on blastocyst degeneration or cell death. We conclude that blocking HCs protects embryos during vitrification and warming by a functional effect not linked to cell death.
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Affiliation(s)
| | | | - Melissa Bol
- Physiology group, Department of Basic Medical Sciences, Ghent University, Ghent, Belgium
| | - Lynn Vandenberghe
- Reproduction, Obstetrics and Herd Health, Ghent University, Merelbeke, Belgium
| | - Elke Decrock
- Physiology group, Department of Basic Medical Sciences, Ghent University, Ghent, Belgium
| | - Mario Van Poucke
- Department of Nutrition, Genetics and Ethology, Ghent University, Merelbeke, Belgium
| | - Luc Peelman
- Department of Nutrition, Genetics and Ethology, Ghent University, Merelbeke, Belgium
| | | | - Ann Van Soom
- Reproduction, Obstetrics and Herd Health, Ghent University, Merelbeke, Belgium
| | - Luc Leybaert
- Physiology group, Department of Basic Medical Sciences, Ghent University, Ghent, Belgium
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Biocompatibility assessment of fibrous nanomaterials in mammalian embryos. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1151-9. [DOI: 10.1016/j.nano.2016.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 12/04/2015] [Accepted: 01/15/2016] [Indexed: 11/22/2022]
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Jiang Z, Harrington P, Zhang M, Marjani SL, Park J, Kuo L, Pribenszky C, Tian XC. Effects of High Hydrostatic Pressure on Expression Profiles of In Vitro Produced Vitrified Bovine Blastocysts. Sci Rep 2016; 6:21215. [PMID: 26883277 PMCID: PMC4756375 DOI: 10.1038/srep21215] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/19/2016] [Indexed: 11/10/2022] Open
Abstract
High hydrostatic pressure (HHP) has been used to pre-condition embryos before essential, yet potentially detrimental procedures such as cryopreservation. However, the mechanisms for HHP are poorly understood. We treated bovine blastocysts with three different HHP (40, 60 and 80 MPa) in combination with three recovery periods (0, 1 h, 2 h post HHP). Re-expansion rates were significantly higher at 40 and 60 but lower at 80 MPa after vitrification-warming in the treated groups than controls. Microarray analysis revealed 399 differentially expressed transcripts, representing 254 unique genes, among different groups. Gene ontology analysis indicated that HHP at 40 and 60 MPa promoted embryo competence through down-regulation of genes in cell death and apoptosis, and up-regulation of genes in RNA processing, cellular growth and proliferation. In contrast, 80 MPa up-regulated genes in apoptosis, and down-regulated protein folding and cell cycle-related genes. Moreover, gene expression was also influenced by the length of the recovery time after HHP. The significantly over-represented categories were apoptosis and cell death in the 1 h group, and protein folding, response to unfolded protein and cell cycle in the 2 h group compared to 0 h. Taken together, HHP promotes competence of vitrified bovine blastocysts through modest transcriptional changes.
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Affiliation(s)
- Zongliang Jiang
- Center for Regenerative Biology, Department of Animal Science, University of Connecticcut, Storrs, Connecticut, 06269, USA.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, China, 510005
| | - Patrick Harrington
- Department of Statistics, University of Connecticut, Storrs, Connecticut, 06269, USA
| | - Ming Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, China, 510005
| | - Sadie L Marjani
- Center for Regenerative Biology, Department of Animal Science, University of Connecticcut, Storrs, Connecticut, 06269, USA.,Department of Biology, Central Connecticut State University, New Britain, Connecticut 06050, USA
| | - Joonghoon Park
- Center for Regenerative Biology, Department of Animal Science, University of Connecticcut, Storrs, Connecticut, 06269, USA
| | - Lynn Kuo
- Department of Statistics, University of Connecticut, Storrs, Connecticut, 06269, USA
| | - Csaba Pribenszky
- Laboratory of Assisted Reproduction, Department of Herd Health, University of Veterinary Science, Istvan u. 2. 1078 Budapest, Hungary
| | - Xiuchun Cindy Tian
- Center for Regenerative Biology, Department of Animal Science, University of Connecticcut, Storrs, Connecticut, 06269, USA
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Lin L, Luo Y, Sørensen P, Prætorius H, Vajta G, Callesen H, Pribenszky C, Bolund L, Kristensen TN. Effects of high hydrostatic pressure on genomic expression profiling of porcine parthenogenetic activated and cloned embryos. Reprod Fertil Dev 2015; 26:469-84. [PMID: 24618454 DOI: 10.1071/rd13037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Accepted: 03/08/2013] [Indexed: 12/31/2022] Open
Abstract
Handmade cloning (HMC) has been used to generate transgenic pigs for biomedical research. Recently, we found that parthenogenetic activation (PA) of porcine oocytes and improved HMC efficiency could be achieved by treatment with sublethal high hydrostatic pressure (HHP). However, the molecular mechanism underlying the effects of HHP treatment on embryonic development is poorly understood and so was investigated in the present study. Thus, in the present study, we undertook genome-wide gene expression analysis in HHP-treated and untreated oocytes, as well as in 4-cell and blastocyst stage embryos derived by PA or HMC. Hierarchical clustering depicted stage-specific genomic expression profiling. At the 4-cell and blastocyst stages, 103 and 163 transcripts were differentially expressed between the HMC and PA embryos, respectively (P<0.05). These transcripts are predominantly involved in regulating cellular differentiation, gene expression and cell-to-cell signalling. We found that 44 transcripts were altered by HHP treatment, with most exhibiting lower expression in HHP-treated oocytes. Genes involved in embryonic development were prominent among the transcripts affected by HHP. Two of these genes (INHBB and ME3) were further validated by quantitative reverse transcription-polymerase chain reaction. We also observed that HHP treatment activated expression of the imprinting gene DLX5 in 4-cell PA embryos. In conclusion, our genomic expression profiling data suggest that HHP alters the RNA constitution in porcine oocytes and affects the expression of imprinting genes during embryonic development.
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Affiliation(s)
- Lin Lin
- Department of Biomedicine, Aarhus University, Wilhelm Meyer Alle 4, 8000, Aarhus C, Denmark
| | - Yonglun Luo
- Department of Biomedicine, Aarhus University, Wilhelm Meyer Alle 4, 8000, Aarhus C, Denmark
| | - Peter Sørensen
- Department of Animal Science, Aarhus University, Blichers Alle 20, 8830, Tjele, Denmark
| | - Helle Prætorius
- Department of Biomedicine, Aarhus University, Wilhelm Meyer Alle 4, 8000, Aarhus C, Denmark
| | - Gabor Vajta
- BGI/HuaDa, Beishan Road 10, 518000, Shenzhen, China
| | - Henrik Callesen
- Department of Animal Science, Aarhus University, Blichers Alle 20, 8830, Tjele, Denmark
| | - Csaba Pribenszky
- Department of Animal Breeding and Genetics, Szent István University, István u. 2, Budapest, 1078, Hungary
| | - Lars Bolund
- Department of Biomedicine, Aarhus University, Wilhelm Meyer Alle 4, 8000, Aarhus C, Denmark
| | - Torsten Nygård Kristensen
- Department of Molecular Biology and Genetics, Center for Quantitative Genetics and Genomics, Aarhus University, Blichers Alle 20, 8830, Tjele, Denmark
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Caamaño JN, Gómez E, Trigal B, Muñoz M, Carrocera S, Martín D, Díez C. Survival of vitrified in vitro-produced bovine embryos after a one-step warming in-straw cryoprotectant dilution procedure. Theriogenology 2014; 83:881-90. [PMID: 25542458 DOI: 10.1016/j.theriogenology.2014.11.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/05/2014] [Accepted: 11/20/2014] [Indexed: 12/20/2022]
Abstract
Vitrification is an alternative to slow-rate freezing for cryopreserving bovine embryos. However, this technology requires simplification if it is to be used under field conditions. The main objective of this work was to develop a new system for the direct transfer of vitrified embryos to be used under farm conditions. For this, three objectives were set: (1) to compare the effect of vitrification, using the cryologic vitrification method (CVM), and slow-rate freezing on bovine embryo development and quality; (2) to develop a one-step warming procedure for bovine in vitro-produced (IVP) vitrified (by CVM) embryos; and (3) to assess the effects on embryo survival of a new method for the direct transfer of vitrified IVP bovine blastocysts. In vitro-produced blastocysts were initially either vitrified by CVM or subjected to slow freezing to compare embryo survival and quality (experiment 1). No differences were detected between these cryopreservation techniques in terms of the survival and quality variables at 24 hours or in terms of the proteins expressed. However, at 48 hours the vitrified embryos showed higher hatching rates, greater total cell numbers, and lower apoptotic indices (P < 0.05). In experiment 2, CVM-vitrified IVP blastocysts were warmed by the conventional two-step or one-step warming procedure by incubating them at 41 °C in 0.25 M sucrose for 10 minutes, 0.15 M sucrose for 10 minutes, or 0.25 M sucrose for 5 minutes. In addition, embryo transfer (ET) was performed using vitrified embryos warmed by the one-step procedure in 0.25 M sucrose solution for 5 minutes. As a control group, IVP fresh embryos were transferred to recipient females. No differences were observed in embryo survival or total cell number between any of the warming procedures. Moreover, no significant differences for pregnancy at 60 days were found between the ET groups. In experiment 3, expanded IVP blastocysts were then either vitrified using a conventional or a modified fiber plug designed to allow direct ET after in-straw cryoprotectant (CP) dilution. They were warmed using the one-step process (0.25 M sucrose, 5 minutes) in a 0.25 mL French straw. Embryo recovery associated with the modified fibreplug system was less reliable than with the conventional system. However, no differences were seen between the systems in terms of in vitro embryo survival among those finally recovered. Finally, IVP blastocysts were vitrified using conventional fibreplugs to maintain a high embryo recovery rate, and then warmed using the one-step warming in-straw CP dilution procedure, but using an adapter with a wider opening coupled to the French straw and a heated metal chamber to protect and keep the straw at 41 °C (experiment 4). No differences were seen in embryo survival rates between the two groups. The CVM combined with this new one-step warming in-straw CP dilution procedure could be used for direct ET under field conditions.
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Affiliation(s)
- J N Caamaño
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - E Gómez
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - B Trigal
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - M Muñoz
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - S Carrocera
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - D Martín
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - C Díez
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain.
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Ha AN, Park HS, Jin JI, Lee SH, Ko DH, Lee DS, White KL, Kong IK. Postthaw survival of in vitro-produced bovine blastocysts loaded onto the inner surface of a plastic vitrification straw. Theriogenology 2014; 81:467-73. [DOI: 10.1016/j.theriogenology.2013.10.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 10/22/2013] [Accepted: 10/22/2013] [Indexed: 11/30/2022]
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Su J, Wang Y, Li W, Gao M, Ma Y, Hua S, Quan F, Zhang Y. Effects of 3-hydroxyflavone on the cellular and molecular characteristics of bovine embryos produced by somatic-cell nuclear transfer. Mol Reprod Dev 2014; 81:257-69. [DOI: 10.1002/mrd.22293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 12/09/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Jianmin Su
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
| | - Yongsheng Wang
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
| | - Wenzhe Li
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
| | - Mingqing Gao
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
| | - Yefei Ma
- Department of Gynecology and Obstetrics; Tangdu Hospital; The Fourth Military Medical University; Xi'an Shaanxi Province PR China
| | - Song Hua
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
| | - Fusheng Quan
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
| | - Yong Zhang
- College of Veterinary Medicine; Northwest A&F University; Yangling Shaanxi Province PR China
- Key Laboratory of Animal Biotechnology; the Ministry of Agriculture; PR China
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