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Bellido-Quispe DK, Arcce IML, Pinzón-Osorio CA, Campos VF, Remião MH. Chemical activation of mammalian oocytes and its application in camelid reproductive biotechnologies: A review. Anim Reprod Sci 2024; 266:107499. [PMID: 38805838 DOI: 10.1016/j.anireprosci.2024.107499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/10/2024] [Accepted: 05/10/2024] [Indexed: 05/30/2024]
Abstract
Mammalian oocyte activation is a critical process occurring post-gamete fusion, marked by a sequence of cellular events initiated by an upsurge in intracellular Ca2+. This surge in calcium orchestrates the activation/deactivation of specific kinases, leading to the subsequent inactivation of MPF and MAPK activities, alongside PKC activation. Despite various attempts to induce artificial activation using distinct chemical compounds as Ca2+ inducers and/or Ca2+-independent agents, the outcomes have proven suboptimal. Notably, incomplete suppression of MPF and MAPK activities persists, necessitating a combination of different agents for enhanced efficiency. Moreover, the inherent specificity of activation methods for each species precludes straightforward extrapolation between them. Consequently, optimization of protocols for each species and for each technique, such as PA, ICSI, and SCNT, is required. Despite recent strides in camelid biotechnologies, the field has seen little advancement in chemical activation methods. Only a limited number of chemical agents have been explored, and the effects of many remain unknown. In ICSI, despite obtaining blastocysts with different chemical compounds that induce Ca2+ and calcium-independent increases, viable offspring have not been obtained. However, SCNT has exhibited varying outcomes, successfully yielding viable offspring with a reduced number of chemical activators. This article comprehensively reviews the current understanding of the physiological activation of oocytes and the molecular mechanisms underlying chemical activation in mammals. The aim is to transfer and apply this knowledge to camelid reproductive biotechnologies, with emphasis on chemical activation in PA, ICSI, and SCNT.
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Affiliation(s)
| | | | - César Augusto Pinzón-Osorio
- Laboratório de Fisiopatologia e Biotécnicas da Reprodução Animal (FiBRA), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Vinicius Farias Campos
- Laboratório de Genômica Estrutural, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Mariana Härter Remião
- Laboratório de Genômica Estrutural, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
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Akbari H, Foruozandeh H, Mohammadi M. Impact of Ovarian Factor Mediums on the Apoptotic Gene Expression and Embryo Quality Derived From Vitrified Immature Human Oocytes. J Obstet Gynaecol India 2023; 73:309-315. [PMID: 37701087 PMCID: PMC10492718 DOI: 10.1007/s13224-022-01726-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 10/30/2022] [Indexed: 01/02/2023] Open
Abstract
Background Condition mediums have a potential role in oocyte development. In this study, we evaluated the effects of different mediums on the developmental potential of vitrified immature human oocyte after IVM and parthenogenesis by ionomycin. Methods Immature oocytes were collected from 184 women after vitrification/thawing and maturation, in three types of IVM mediums separately. Finally, 151 IVM MΙΙ oocytes were obtained and randomly divided into six groups and underwent the following intervention. Fresh and vitrified-thawing MΙΙ oocytes were activated after IVM in three conditioned mediums by ionomycin. Mediums included 1) Minimum Essential Medium Alpha (α-MEM) (as control medium), 2) α-MEM supplemented with supernatants of Mesenchyme bone marrow (B.M), 3) α-MEM with ovarian growth factors (O.F). Then, scoring of parthenote embryos was undertaken in accordance with pertinent morphological properties. Moreover, the expression of Bax and Bcl2 were determined in the parthenote embryos. Result Percentage of the degenerated oocyte, 2-4 cells, 4-8 cells, and 16 cells, was different in the experimental groups. Also, cytoplasmic maturation and blastocyst formation rates were significantly different (p < 0.05) between the control and the other mediums. The highest mRNA expression levels of Bcl2 and Bax genes in parthenotes were observed in the fIVM O.F and vIVM α-MEM mediums, respectively. vIVM, α-MEM and fIVM O.F showed the lowest expression of Bcl2 and Bax genes, respectively. Conclusion Our findings indicate that the O.F. medium had more potent effects on oocyte growth and cytoplasmic maturation up to the blastocyst stage with the highest expression level of the BCL2 gene and the lowest relative amount of the BAX gene in this medium. The results of the present study have been verified only for parthenogenetically activated embryos, and any positive effect of the environment on the egg/embryo fertilized with sperm requires more extensive studies.
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Affiliation(s)
- Hakimeh Akbari
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Hossein Foruozandeh
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Masoud Mohammadi
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
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Crasta DN, Adiga SK, Kannan N, Kalthur G. Artificial Activation of Murine Oocytes Using Strontium to Derive Haploid and Diploid Parthenotes. Methods Mol Biol 2022; 2429:15-26. [PMID: 35507152 DOI: 10.1007/978-1-0716-1979-7_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Parthenogenesis is a common reproductive strategy among lower animals that involves the development of an embryo from an oocyte, without any contribution from spermatozoon. This phenomenon does not occur naturally in placental mammals. However, the mammalian oocytes can be artificially activated in vitro using mechanical, electrical, and chemical stimuli which can develop up to the blastocyst stage. In this chapter, we describe the protocol for generating haploid and diploid parthenotes from mouse oocytes using strontium as the activating agent under in vitro conditions.
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Affiliation(s)
- Daphne Norma Crasta
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
- Stem Cell and Cancer Biology Laboratory, Division of Experimental Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Mayo Clinic, Rochester, MN, USA
| | - Satish Kumar Adiga
- Division of Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Nagarajan Kannan
- Stem Cell and Cancer Biology Laboratory, Division of Experimental Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Guruprasad Kalthur
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.
- Stem Cell and Cancer Biology Laboratory, Division of Experimental Medicine and Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Mayo Clinic, Rochester, MN, USA.
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Kwon J, Seong MJ, Piao X, Jo YJ, Kim NH. LIMK1/2 are required for actin filament and cell junction assembly in porcine embryos developing in vitro. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2020; 33:1579-1589. [PMID: 32054159 PMCID: PMC7463081 DOI: 10.5713/ajas.19.0744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/06/2020] [Indexed: 12/28/2022]
Abstract
Objective This study was conducted to investigate the roles of LIM kinases (LIMK1 and LIMK2) during porcine early embryo development. We checked the mRNA expression patterns and localization of LIMK1/2 to evaluate their characterization. We further explored the function of LIMK1/2 in developmental competence and their relationship between actin assembly and cell junction integrity, specifically during the first cleavage and compaction. Methods Pig ovaries were transferred from a local slaughterhouse within 1 h and cumulus oocyte complexes (COCs) were collected. COCs were matured in in vitro maturation medium in a CO2 incubator. Metaphase II oocytes were activated using an Electro Cell Manipulator 2001 and microinjected to insert LIMK1/2 dsRNA into the cytoplasm. To confirm the roles of LIMK1/2 during compaction and subsequent blastocyst formation, we employed a LIMK inhibitor (LIMKi3). Results LIMK1/2 was localized in cytoplasm in embryos and co-localized with actin in cell-to-cell boundaries after the morula stage. LIMK1/2 knockdown using LIMK1/2 dsRNA significantly decreased the cleavage rate, compared to the control group. Protein levels of E-cadherin and β-catenin, present in adherens junctions, were reduced at the cell-to-cell boundaries in the LIMK1/2 knockdown embryos. Embryos treated with LIMKi3 at the morula stage failed to undergo compaction and could not develop into blastocysts. Actin intensity at the cortical region was considerably reduced in LIMKi3-treated embryos. LIMKi3-induced decrease in cortical actin levels was attributed to the disruption of adherens junction and tight junction assembly. Phosphorylation of cofilin was also reduced in LIMKi3-treated embryos. Conclusion The above results suggest that LIMK1/2 is crucial for cleavage and compaction through regulation of actin organization and cell junction assembly.
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Affiliation(s)
- Jeongwoo Kwon
- Department of Animal Sciences, Chungbuk Natonal University, Cheongju 28864, Korea
| | - Min-Jung Seong
- Department of Animal Sciences, Chungbuk Natonal University, Cheongju 28864, Korea
| | - Xuanjing Piao
- Department of Animal Sciences, Chungbuk Natonal University, Cheongju 28864, Korea
| | - Yu-Jin Jo
- Primate Resources Center (PRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup 56216, Korea
| | - Nam-Hyung Kim
- Department of Animal Sciences, Chungbuk Natonal University, Cheongju 28864, Korea.,School of Biotechnology and Healthcare, Wuyi University, Jiangmen 529020, China
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Hu X, Cheng L, Wang X, Luo G, Zhao T, Tian J, An L. N-acetyl-l-cysteine protects porcine oocytes undergoing meiotic resumption from heat stress. Reprod Toxicol 2019; 91:27-34. [PMID: 31698002 DOI: 10.1016/j.reprotox.2019.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/25/2019] [Accepted: 10/25/2019] [Indexed: 11/29/2022]
Abstract
Heat stress (HS) is a notable risk factor for female reproductive performance. In particular, impaired oocyte maturation was thought to contribute largely to the HS-induced reproductive dysfunctions. In this study, we confirmed that oocytes undergoing GVBD were much susceptible to HS, and thus compromising subsequent embryonic development. Using N-acetyl-l-cysteine (NAC), we found supplementation of a relatively high dose NAC during in vitro maturation, can protect oocytes from HS-induced complications, and thus rescuing impaired embryonic development. Further analysis indicated that mechanisms responsible for protecting GVBD oocytes from HS by NAC may include: (1) reversing disorganized spindle assembly and inhibited extracellular signal-regulated kinase (ERK) signaling; (2) correcting erroneous H3K27me3 modification and dysregulated expression of imprinted genes; (3) alleviating increased intraoocyte reactive oxygen species accumulation and apoptosis initiation. Our study, focusing on the oocyte meiotic maturation, may provide a safe and promising strategy for protecting reproductive sows under environmental hyperthermal conditions.
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Affiliation(s)
- Xiao Hu
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China
| | - Linghua Cheng
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China
| | - Xiaodong Wang
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China
| | - Gang Luo
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China
| | - Tianqing Zhao
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China
| | - Jianhui Tian
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China
| | - Lei An
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Haidian District, Beijing 100193, China.
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Dua D, Nagoorvali D, Chauhan MS, Palta P, Mathur P, Singh MK. Calcium ionophore enhanced developmental competence and apoptotic dynamics of goat parthenogenetic embryos produced in vitro. In Vitro Cell Dev Biol Anim 2019; 55:159-168. [PMID: 30737632 DOI: 10.1007/s11626-019-00322-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 01/16/2019] [Indexed: 12/21/2022]
Abstract
Parthenogenetically developed embryos are efficient sources of in vitro embryo production, having less ethical issue and being useful for investigating culture conditions/treatments, early developmental, genomic studies, and homonymous source of stem cells. Keeping its advantages in mind, we aimed to study the effects of different activating agents on embryo production and its quality and gene expression. In the present study, 1348 immature oocytes recovered were parthenogenetically developed to embryos. Usable-quality immature oocytes were collected by puncturing the surface follicles and matured in in vitro maturation (IVM) medium for 27 h in a humidified 5% CO2 incubator at 38.5°C. The matured oocytes were parthenogenetically activated by exposure to 5 μM calcium ionophore for 5 min or 7% ethanol for 7 min sequentially followed by 4 h incubation in 2 mM 6-DMAP and then in vitro cultured (IVC) in RVCL/G-2 medium for 8 days. Matured oocytes were activated by calcium ionophore, the cleavage rate observed was 76.67 ± 3.47%, and further they developed into 4-cell, 8-16-cell, morula, blastocyst, and hatched blastocyst with 85.30 ± 1.57%, 70.60 ± 2.00%, 45.05 ± 2.66%, 22.89 ± 2.40%, and 5.70 ± 1.97%, respectively. Whereas ethanol-activated oocytes showed cleavage rate of 87.60 ± 1.70% and further culture developed into 4-cell, 8-16 cell, morula, blastocyst, and hatched blastocyst with 86.14 ± 1.03%, 71.56 ± 2.21%, 40.90 ± 2.45%, 19.02 ± 1.26%, and 2.22 ± 0.38%, respectively. Blastocyst developed from calcium ionophore-activated oocytes showed significantly (P < 0.05) higher total cell number (282.25 ± 27.02 vs 206.00 ± 40.46) and a lower apoptotic index (2.42 ± 0.46 vs 4.07 ± 1.44) than blastocyst developed from ethanol-activated oocytes. The relative expression of anti-apoptotic genes (BCL2, BCL2A1, MCL) at different stages of embryos produced by either calcium ionophore or ethanol activation was found to be increased in earlier stages and decreased in later stages of embryonic development. Similarly, when these embryos were subjected to pro-apoptotic genes (BAX, BAD, BAK), expression was found to be slightly higher in blastocysts than other stages. This study shows that calcium ionophore-activated blastocysts were developmentally more competent than the ethanol-activated blastocysts.
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Affiliation(s)
- Diksha Dua
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - D Nagoorvali
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - M S Chauhan
- ICAR-Central Institute for Research on Goats, Makhdum, Mathura, 281122, India
| | - P Palta
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India
| | - P Mathur
- Amity Institute of Biotechnology, Amity University, Noida, 201303, India
| | - M K Singh
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, India.
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Gómez NA, Ramírez MM, Ruiz-Cortés ZT. PRIMARY FIBROBLAST CELL CYCLE SYNCHRONIZATION AND EFFECTS ON HANDMADE CLONED (HMC) BOVINE EMBRYOS. CIÊNCIA ANIMAL BRASILEIRA 2018. [DOI: 10.1590/1809-6891v19e-48555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Spatial and temporal synchrony and compatibility between the receptor oocyte and the donor cell nucleus are necessary for the process of embryo cloning to allow nuclear reprogramming and early embryonic development. The objective of the present study was to evaluate three cell cycle synchronization methods on a primary bovine fibroblast culture for 24, 48, or 72 h. These fibroblasts were used as nuclear donors to evaluate their in vitro developmental potential and the quality of the embryos produced through handmade cloning (HMC). No differences were found between the methods used for fibroblast synchronization in G0/G1 (p > 0.05). Production of clones from fibroblasts in four groups- no treatment at 0 h and using serum restriction SR, high culture confluence HCC, and SR+HCC at 24 h- resulted in high cleavage rates that were not different. Embryo production rates were 37.9%, 29.5%, and 30.9% in the 0h, SR24h, and SR+HHC24h groups, respectively, and 19.3% in the HCC group, which was significantly different from the other three (p < 0.05). There were no differences in the quality parameter among the clones produced with fibroblasts subjected to the different synchronization. Finally, when overall clone production was compared versus parthenotes and IVF embryos, the only difference was between clones and parthenogenetic embryos with zona pellucida (30.2% vs 38.6%). The number of blastomeres from the blastocytes produced through IVF was significantly greater than those from embryos activated parthenogenetically and from clones (117, 80, 75.9, and 67.1, respectively). The evaluation of three synchronization methods at different time points did not demonstrate an increase in the percentage of fibroblasts in the G0/G1 phases of the cell cycle; however, good quality and high cloning rates were obtained, suggesting that it is not always necessary to subject the cells to any synchronization treatments, as they would yield equally good cloning results.
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Developmental competence of cat ( Felis domesticus) oocytes and embryos after parthenogenetic stimulation using different methods. ZYGOTE 2018; 26:119-126. [PMID: 29467049 DOI: 10.1017/s0967199418000011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The aim of this study was to compare the effects of various activating factors on feline oocytes. The study included activation within the ovary (natural), activation during in vitro maturation (spontaneous activation), chemical activation (ionomycin + 6-DMAP), activation by spermatozoa and injection (ICSI) and mechanical activation (sham ICSI). According to our results, parthenogenetic embryos could emerge at every step of in vitro embryo production (IVP) procedures. After oocyte collection, 6% of parthenogenetic embryos were observed, mainly at the 2-4-blastomere stages. After 24 h of in vitro maturation, parthenogenetic activation was observed in 7% of oocytes. Using ionomycin and 6-DMAP to artificially activate oocytes, 53% of cleaved embryos were obtained. The results after ICSI (54% cleaved embryos) were not significantly different from the results in Group III using chemical activation (53% cleaved embryos). But only after ICSI were blastocysts obtained (5/73.7%) as a result of in vitro culture. Moreover, embryos after ICSI were of the best morphological quality with minor levels of fragmentation evident in the embryos. After sham mechanical activation, 'sham ICSI', 8% of cleaved embryos were noted. Therefore, it is advised to maintain a negative control in parallel with each step of IVP techniques, to avoid misleading results. Chemical methods for artificial activation of feline oocytes are the most promising for application to the cloning and production of parthenogenetic embryos for experimental studies.
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Hernández-Pichardo JE, Ducolomb Y, Romo S, Kjelland ME, Fierro R, Casillas F, Betancourt M. Pronuclear formation by ICSI using chemically activated ovine oocytes and zona pellucida bound sperm. J Anim Sci Biotechnol 2016; 7:65. [PMID: 27826442 PMCID: PMC5100180 DOI: 10.1186/s40104-016-0124-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 10/14/2016] [Indexed: 01/29/2023] Open
Abstract
Background In order to improve ICSI, appropiate sperm selection and oocyte activation is necessary. The objective of the present study was to determine the efficiency of fertilization using ICSI with chemically activated ovine oocytes and sperm selected by swim up (SU) or swim up + zona pellucida (SU + ZP) binding. Results Experiment 1, 4–20 replicates with total 821 in vitro matured oocytes were chemically activated with ethanol, calcium ionophore or ionomycin, to determine oocyte activation (precense of one PN). Treatments showed similar results (54, 47, 42 %, respectively) but statistically differents (P < 0.05) than mechanical activated oocytes in sham, ICSI and sham injection (13, 25, 32 %, respectively) (10–17 replicates; n = 429). Experiment 2: Twelve ejaculates and 28 straws of semen were used (11–19 replicates). Sperm were selected by SU in BSA-TCM 199-H medium. A total of 2,294 fresh sperm and 2,760 from frozen-thawed semen were analyzed after SU or SU + ZP binding. Fresh sperm selected by SU showed acrosome reaction (AR) of 59 %, the sperm selected by SU + ZP binding increased AR to 91 %. In comparison, the AR of frozen-thawed sperm using SU or SU + ZP binding was 77 and 86 %, respectively (P < 0.05). Experiment 3: fertilization in 200 mechanical activativated oocytes (17 replicates) was 4 %, but fertilization increased in ethanol activated oocytes after ICSI (12-28 %) (5–6 replicates). When fresh sperm only selected by SU were injected to 123 oocytes, a fertilization rate (28 %) was achieved; in sperm selected by SU + ZP was 25 % (73 oocytes). In comparison, in frozen-thawed sperm selected by SU, fertilization was 13 % (70 oocytes), whereas sperm from SU + ZP binding displayed 12 % (51 oocytes) (P > 0.05). Conclusions Chemical activation induces higher ovine oocyte activation than mechanical activation. Ethanol slightly displays higher oocyte activation than calcium ionophore and ionomicine. Sperm selection with SU + ZP increased AR/A and AR/D rates in comparison with SU in fresh and frozen-thawed sperm. According to this, in terms of fertilization rates, chemical activation after ICSI increased oocyte PN formation compared to mechanical activation. Also, fresh sperm treated with SU and SU + ZP were significantly different than frozen-thawed sperm, but between sperm treatments no significant differences were obtained.
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Affiliation(s)
- J E Hernández-Pichardo
- División de Ciencias Biológicas y de la Salud, Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana-Xochimilco, Ciudad de México, Mexico ; Doctorado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de México, Mexico
| | - Y Ducolomb
- División de Ciencias Biológicas y de la Salud, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, CP 09340 Ciudad de México, Mexico
| | - S Romo
- Departamento de Ciencias Pecuarias, Facultad de Estudios Superiores Cuautitlán, UNAM, Ciudad de México, Estado de México Mexico
| | - M E Kjelland
- Conservation, Genetics & Biotech, LLC, Valley City, ND USA
| | - R Fierro
- División de Ciencias Biológicas y de la Salud, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, CP 09340 Ciudad de México, Mexico
| | - F Casillas
- División de Ciencias Biológicas y de la Salud, Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de México, Mexico
| | - M Betancourt
- División de Ciencias Biológicas y de la Salud, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, CP 09340 Ciudad de México, Mexico
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Brito IR, Silva GM, Sales AD, Lobo CH, Rodrigues GQ, Sousa RF, Moura A, Calderón C, Bertolini M, Campello CC, Smitz J, Figueiredo JR. Fibrin-alginate hydrogel supports steroidogenesis, in vitro maturation of oocytes and parthenotes production from caprine preantral follicles cultured in group. Reprod Domest Anim 2016; 51:997-1009. [PMID: 27650787 DOI: 10.1111/rda.12779] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/02/2016] [Indexed: 11/28/2022]
Abstract
This study aimed to establish a culture system that improves the in vitro development of caprine preantral follicles. In a first experiment, follicles were encapsulated as a single unit per bead and cultured singly or in groups or with five follicles in the same alginate (ALG) bead for 18 days. In a subsequent experiment, the "five follicles per bead" design was chosen to culture in ALG, fibrin-alginate (FA) or hyaluronate (HA) for 18 days. In a third experiment, we chose the five follicles per bead in FA to culture for 30 days. The culture set-up of five follicles per ALG bead increased antrum formation and follicle diameter compared to the other culture designs (p < .05). Moreover, under this condition, 44.44% of the oocytes from in vitro cultured preantral follicles reached meiotic resumption. A significant increase of follicle diameter occurred in attachment system and FA (p < .05), but the ALG condition reached the highest among all groups on day 18 (p < .05). Follicles encapsulated in matrix produced more estradiol and progesterone than attachment system (p < .05). The expression of MMP-9 mRNA was higher in FA than in other groups (p < .05) and similar to antral follicles from in vivo control (p > .05). Only FA group resulted in oocytes matured. After 30 days, oocytes from preantral follicles in vitro grown in FA developed to eight-cell parthenotes. In conclusion, a culture system using FA supported the development of caprine preantral follicles cultured in group and included in the same bead of hydrogel, improving the oocyte maturation and producing parthenotes.
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Affiliation(s)
- I R Brito
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - G M Silva
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - A D Sales
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - C H Lobo
- Department of Animal Science, Laboratory of Animal Physiology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - G Q Rodrigues
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - R F Sousa
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Aaa Moura
- Department of Animal Science, Laboratory of Animal Physiology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Cem Calderón
- Biotechnology Laboratory, University of Fortaleza, Fortaleza, CE, Brazil
| | - M Bertolini
- Biotechnology Laboratory, University of Fortaleza, Fortaleza, CE, Brazil
| | - C C Campello
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - J Smitz
- Follicle Biology Laboratory, Vrije Universiteit Brussel, Brussels, Belgium
| | - J R Figueiredo
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
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Dyck M, Zhou C, Tsoi S, Grant J, Dixon W, Foxcroft G. Reproductive technologies and the porcine embryonic transcriptome. Anim Reprod Sci 2014; 149:11-8. [DOI: 10.1016/j.anireprosci.2014.05.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 05/14/2014] [Accepted: 05/26/2014] [Indexed: 12/31/2022]
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Singh R, Kumar K, Mahapatra PS, Kumar M, Agarwal P, Bhure SK, Malakar D, Bhanja SK, Bag S. Microarray analysis of gene expression in parthenotes and in vitro-derived goat embryos. Theriogenology 2014; 81:854-60. [PMID: 24507961 DOI: 10.1016/j.theriogenology.2014.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 12/28/2013] [Accepted: 01/01/2014] [Indexed: 01/24/2023]
Abstract
The present work was carried out to investigate the global gene expression profile to search differentially expressed candidate transcripts between parthenogenetic and in vitro-fertilized (IVF) caprine morula. For this study, total RNA was isolated from diploid parthenogenetic and IVF embryos, and complementary DNA was synthesized. Microarray and relative real-time polymerase chain reaction analysis were performed to check global gene expression profile and validation, respectively. According to the microarray analysis, the total number of upregulated (UR) and downregulated (DR) genes was 613 and 220, respectively in diploid parthenogenetic morula as compared with IVF morula. The number of genes showing about two-, two- to five-, five- to 10-, 10- to 20-, and above 20-fold UR and DR genes was 147, 229, 122, 59, and 56 and 94, 73, 18, 13, and 22, respectively. Five UR genes validated (PTEN, PHF3, CTNNB1, SELK, and NPDC1) and all of them were significantly higher in parthenotes, which was in accordance with microarray results, whereas the expression of DR (AURKC and KLF15) genes were downregulated in parthenotes as observed in microarray results but the difference was not significant (P < 0.05). In conclusion, our findings demonstrate differential expression of a large number of genes in parthenotes compared with IVF embryos, which may be the reason for aberrant parthenogenetic embryo development in caprine species.
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Affiliation(s)
- Renu Singh
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Kuldeep Kumar
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - P S Mahapatra
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Manish Kumar
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Pranjali Agarwal
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - S K Bhure
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Dhruba Malakar
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - S K Bhanja
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Sadhan Bag
- Reproductive Physiology Lab, Division of Physiology & Climatology, Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India.
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