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Baruselli PS, de Carvalho NAT, Gasparrini B, Campanile G, D'Occhio MJ. Review: Development, adoption, and impact of assisted reproduction in domestic buffaloes. Animal 2023; 17 Suppl 1:100764. [PMID: 37567675 DOI: 10.1016/j.animal.2023.100764] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 08/13/2023] Open
Abstract
The domestic buffalo (Bubalus bubalis), also known as water buffalo, comprises two sub-species the River buffalo (B. bubalis ssp. bubalis; 50 chromosomes) and the Swamp buffalo (ssp. carabanensis; 48 chromosomes). Domestic buffaloes are a globally significant livestock species. In South Asia, the River buffalo is a primary source of milk and meat and has a very important role in food security. The River buffalo also supports high-value, differentiated food production in Europe and the Americas. The Swamp buffalo is an important draft animal and a source of food in Southeast Asia and East Asia. The growing importance of buffaloes requires that they undergo an accelerated rate of genetic gain for efficiency of production, product quality, and sustainability. This will involve the increased use of assisted reproduction. The initial application of reproductive technology in buffaloes had variable success as it relied on the adoption of procedures developed for cattle. This included artificial insemination (AI), sperm cryopreservation, and embryo technologies such as cloning and in vitro embryo production (IVEP). Reproductive technology has been progressively refined in buffaloes, and today, the success of AI and IVEP is comparable to cattle. Ovarian follicular superstimulation (superovulation) combined with in vivo embryo production results in low embryo recovery in buffaloes and has limited practical application. The contribution of elite female buffaloes to future genetic improvement will therefore rely mainly on oocyte pickup and IVEP. This will include IVEP from females before puberty to reduce generation intervals. This review provides for the first time a clear chronology on the development, adoption, and impact, of assisted reproduction in domestic buffaloes.
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Affiliation(s)
- Pietro S Baruselli
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil.
| | - Nelcio A T de Carvalho
- Research and Development Unit of Registro, Diversified Animal Science Research Center/Institute of Animal Science, Registro, São Paulo-SP, Brazil
| | - Bianca Gasparrini
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Michael J D'Occhio
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, Australia
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Kosior MA, Esposito R, Cocchia N, Piscopo F, Longobardi V, Cacciola NA, Presicce GA, Campanile G, Aardema H, Gasparrini B. Seasonal variations in the metabolomic profile of the ovarian follicle components in Italian Mediterranean Buffaloes. Theriogenology 2023; 202:42-50. [PMID: 36898285 DOI: 10.1016/j.theriogenology.2023.02.022] [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: 11/10/2022] [Revised: 02/15/2023] [Accepted: 02/18/2023] [Indexed: 03/05/2023]
Abstract
The aim of this work was to evaluate the seasonal effect on the metabolomic profile of the ovarian follicle in Italian Mediterranean buffalo to unravel the causes of the reduced competence during the non-breeding season (NBS). Samples of follicular fluid, follicular cells, cumulus cells and oocytes were collected from abattoir-derived ovaries during breeding season (BS) and NBS and analyzed by 1H Nuclear Magnetic Resonance. The Orthogonal Projections to Latent Structures of the Discriminant Analysis showed clear separation into seasonal classes and Variable Importance in Projection method identified differentially abundant metabolites between seasons. Seasonal differences were recorded in metabolite content in all analyzed components suggesting that the decreased oocyte competence during NBS may be linked to alteration of several metabolic pathways. The pathway enrichment analysis revealed that differences in the metabolites between the seasons were linked to glutathione, energy generating and amino acid metabolism and phospholipid biosynthesis. The current work allows the identification of potential positive competence markers in the follicular fluid as glutathione, glutamate, lactate and choline, and negative markers like leucine, isoleucine and β-hydroxybutyrate. These results form a major basis to develop potential strategies to optimize the follicular environment and the IVM medium to improve the competence of oocytes during the NBS.
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Affiliation(s)
- Michal Andrzej Kosior
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
| | - Riccardo Esposito
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
| | - Natascia Cocchia
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy.
| | - Federica Piscopo
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
| | - Valentina Longobardi
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
| | - Nunzio Antonio Cacciola
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
| | | | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
| | - Hilde Aardema
- Department of Farm Animal Health, Faculty of Veterinary Medicine - Utrecht University, Yalelaan 7, 3584 CL, Utrecht, the Netherlands
| | - Bianca Gasparrini
- Department of Veterinary Medicine and Animal Production - Federico II University, Via F. Delpino 1, 80137, Naples, Italy
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Optimization of gonadotropin stimulation protocols for in vitro embryo production in prepubertal Mediterranean water buffalo. Theriogenology 2023; 197:84-93. [PMID: 36476506 DOI: 10.1016/j.theriogenology.2022.11.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/21/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022]
Abstract
Embryos can be produced from prepubertal donor animals using laparoscopic ovum pickup and in vitro embryo production technologies (LOPU-IVEP). Together, these tools can shorten the interval between generations, rapidly accelerating the rate of genetic gain. Here, we assessed the impact of different gonadotropin stimulation protocols in Mediterranean water buffalo heifer calves aged between 2 and 6 months old. Following gonadotropin stimulation, LOPU was performed at two-week intervals, with animals receiving different protocols on subsequent LOPUs. After collection, the cumulus-oocyte complexes (COCs) were matured and fertilized in vitro, and embryos were cultured to the blastocyst stage followed by transfer into synchronized adult recipients. The number and size of follicles aspirated during LOPU, the number and quality of COCs recovered, as well as cleavage, embryo development and pregnancy rates were assessed. First, we evaluated the impact of using FSH with and without eCG (administered 24-h prior to LOPU) and found that a combination of FSH and eCG was able to significantly improve embryo development rates (20.6 ± 2.0% vs. 9.0 ± 3.6%; P < 0.05). Second, we compared this protocol to a slow-release formulation of FSH reconstituted in hyaluronan. In addition to requiring less work to prepare the animals for LOPU, this slow-release formulation yielded numerically higher, but not statistically different, average number of recovered COCs (14.4 ± 2.1 vs. 10.3 ± 2.0; P > 0.05) and embryo development rates (22.9 ± 4.7% vs. 14.1 ± 5.2%; P > 0.05) compared to FSH given every 12 h. Next, we compared the length of gonadotropin treatment over 3-, 4- and 5-days prior to LOPU and found that as the length of gonadotropin treatment increased, although the number of COCs recovered steadily decreased (14.1 ± 2.4 vs. 8.7 ± 1.0 vs. 6.9 ± 0.7; P < 0.05), the embryo development rates steadily increased (14.4 ± 3.9 vs. 27.3 ± 4.4 vs. 35.9 ± 7.0; P < 0.05), presumably due to an increase in the proportion of large follicles at the time of LOPU. Numerically, the 4-day treatment yielded more transferrable embryos per donor per LOPU (2.70 ± 0.5) than 3-day (1.94 ± 0.6) and 5-day (2.25 ± 0.5) treatments. Finally, following embryo transfer, 26 of 90 recipient females became pregnant (28.9%). Pregnancies were established from all treatments, which suggests that post-implantation development was not affected among the gonadotropin treatments assessed.
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Optimizing swine in vitro embryo production with growth factor and antioxidant supplementation during oocyte maturation. Theriogenology 2022; 194:133-143. [DOI: 10.1016/j.theriogenology.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
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Currin L, Baldassarre H, Bordignon V. In Vitro Production of Embryos from Prepubertal Holstein Cattle and Mediterranean Water Buffalo: Problems, Progress and Potential. Animals (Basel) 2021; 11:2275. [PMID: 34438733 PMCID: PMC8388507 DOI: 10.3390/ani11082275] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 01/21/2023] Open
Abstract
Laparoscopic ovum pick-up (LOPU) coupled with in vitro embryo production (IVEP) in prepubertal cattle and buffalo accelerates genetic gain. This article reviews LOPU-IVEP technology in prepubertal Holstein Cattle and Mediterranean Water Buffalo. The recent expansion of genomic-assisted selection has renewed interest and demand for prepubertal LOPU-IVEP schemes; however, low blastocyst development rates has constrained its widespread implementation. Here, we present an overview of the current state of the technology, limitations that persist and suggest possible solutions to improve its efficiency, with a focus on gonadotropin stimulations strategies to prime oocytes prior to follicular aspiration, and IVEP procedures promoting growth factor metabolism and limiting oxidative and endoplasmic reticulum stress.
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Affiliation(s)
| | | | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (L.C.); (H.B.)
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Baldassarre H. Laparoscopic Ovum Pick-Up Followed by In Vitro Embryo Production and Transfer in Assisted Breeding Programs for Ruminants. Animals (Basel) 2021; 11:216. [PMID: 33477298 PMCID: PMC7830735 DOI: 10.3390/ani11010216] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 01/03/2023] Open
Abstract
The potential of laparoscopic ovum pick-up (LOPU) followed by in vitro embryo production (IVEP) as a tool for accelerated genetic programs in ruminants is reviewed in this article. In sheep and goats, the LOPU-IVEP platform offers the possibility of producing more offspring from elite females, as the procedure is minimally invasive and can be repeated more times and more frequently in the same animals compared with conventional surgical embryo recovery. On average, ~10 and ~14 viable oocytes are recovered by LOPU from sheep and goats, respectively, which results in 3-5 transferable embryos and >50% pregnancy rate after transfer. LOPU-IVEP has also been applied to prepubertal ruminants of 2-6 months of age, including bovine and buffalo calves. In dairy cattle, the technology has gained momentum in the past few years stemming from the development of genetic marker selection that has allowed predicting the production phenotype of dairy females from shortly after birth. In Holstein calves, we obtained an average of ~22 viable oocytes and ~20% transferable blastocyst rate, followed by >50% pregnancy rate after transfer, declaring the platform ready for commercial application. The present and future of this technology are discussed with a focus on improvements and research needed.
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Affiliation(s)
- Hernan Baldassarre
- Department of Animal Science, McGill University, Montreal, QC H3A 0G4, Canada
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Impact of oxidative stress on oocyte competence for in vitro embryo production programs. Res Vet Sci 2020; 132:342-350. [PMID: 32738731 DOI: 10.1016/j.rvsc.2020.07.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/13/2020] [Accepted: 07/21/2020] [Indexed: 11/22/2022]
Abstract
Producing high-competent oocytes during the in vitro maturation (IVM) is considered a key step for the success of the in vitro production (IVP) of embryos. One of the known disruptors of oocyte developmental competence on IVP is oxidative stress (OS), which appears due to the imbalance between the production and neutralization of reactive oxygen species (ROS). The in vitro conditions induce supraphysiological ROS levels due to the exposure to an oxidative environment and the isolation of the oocyte from the follicle protective antioxidant milieu. In juvenile in vitro embryo transfer (JIVET), which aims to produce embryos from prepubertal females, the oocytes are more sensitive to OS as they have inherent lower quality. Therefore, the IVM strategies that aim to prevent OS have great interest for both IVP and JIVET programs. The focus of this review is on the effects of ROS on oocyte IVM and the main antioxidants that have been tested for protecting the oocyte from OS. Considering the importance that OS has on oocyte competence, it is crucial to create standardized antioxidant IVM systems for improving the overall IVP success.
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Is it possible to alter the embryo lipid accumulation with reduction of fetal bovine serum and use of l-carnitine for in vitro maturation of bubaline oocytes? ZYGOTE 2020. [DOI: 10.1017/s096719941900073x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryIn vitro embryo production (IVEP) is a procedure that can promote genetic improvement in a short time frame. However, the success rates obtained with this biotechnology in water buffaloes are still inconsistent, and can be associated with the high concentration of lipids in the cytoplasm of oocytes and embryos. The objective of this study was to evaluate the effects of reduced concentration of fetal bovine serum (FBS) and/or use of l-carnitine during in vitro maturation (IVM) on the preimplantation development and lipid accumulation in bubaline embryos. In a first experiment, the lowest concentration of FBS in the IVM medium (0%, 2.5%, 5% or 10%) was determined, and the lowest concentration that maintained good embryo development rates was 5%. In a second experiment, the addition of 5 mM of l-carnitine into the maturation medium was evaluated. The blastocysts produced were submitted to lipid evaluation involving staining followed by observation using optical (Oil Red O) and confocal (BODIPY 493/503) microscopy. No difference was observed between the 5% and 10% FBS groups, which were superior to the 0% and 2.5% groups. Furthermore, the performance of the groups treated with 5% and 10% FBS was better than the groups supplemented with l-carnitine. There was no difference regarding embryo lipid accumulation. The results indicated that it is possible to reduce the FBS concentration to 5% in in vitro maturation medium for production of bubaline embryos, and supplementation with 5 mM l-carnitine does not increase embryo production.
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Luvoni GC, Colombo M, Morselli MG. The never-ending search of an ideal culture system for domestic cat oocytes and embryos. Reprod Domest Anim 2019; 53 Suppl 3:110-116. [PMID: 30474340 DOI: 10.1111/rda.13331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 01/20/2023]
Abstract
In the domestic cat, in vitro fertilization started 40 years ago, but an ideal culture system has yet to be achieved. The physiological microenvironments, which interact with oocytes and embryos promoting their competence, have been investigated. However, recreating in vitro follicle- and oviduct-like conditions is challenging and a matter of both chemistry and physics. This review presents an excursus of the experimental investigations focused on the improvement of feline oocytes and embryos culture through the modulation of chemical and physical factors. Medium supplementation with components of follicular and oviductal fluids, or the use of different co-cultures, supports or substrata have been considered. Innovative and sophisticated systems as "organ-on-a-chip" might lead to the creation of artificial follicles and oviducts and they may represent the ideal combination of chemical and physical factors. Will the search ever end?
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Affiliation(s)
- Gaia Cecilia Luvoni
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, Università degli Studi di Milano, Milan, Italy
| | - Martina Colombo
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, Università degli Studi di Milano, Milan, Italy
| | - Maria Giorgia Morselli
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, Università degli Studi di Milano, Milan, Italy
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Ramos Leal G, Santos Monteiro CA, Souza-Fabjan JMG, de Paula Vasconcelos CO, Garcia Nogueira LA, Reis Ferreira AM, Varella Serapião R. Role of cAMP modulator supplementations during oocyte in vitro maturation in domestic animals. Anim Reprod Sci 2018; 199:1-14. [PMID: 30449707 DOI: 10.1016/j.anireprosci.2018.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 10/11/2018] [Accepted: 11/07/2018] [Indexed: 12/17/2022]
Abstract
Cyclic adenosine monophosphate (cAMP) is an important molecule in signal transduction within the cell, functioning as a second cell messenger of gonadotrophin stimulation. The concentration of cAMP in cumulus-oocyte complexes (COCs) is known to be controlled through modulation of its synthesis by adenylyl cyclase (AC) and by degradation through the cyclic nucleotide phosphodiesterase (PDE) enzymes. One of the main obstacles for in vitro embryo production is the optimization of reproduction processes that occur in oocyte maturation. The function of cAMP is important in maintaining meiotic arrest in mammalian oocytes. When the oocyte is physically removed from the antral follicle for in vitro maturation (IVM), intra-oocyte cAMP concentrations decrease and spontaneous meiotic resumption begins, due to the depletion of inhibitory factors from the follicle. In many studies, relatively greater cAMP concentrations before IVM has been reported to improve oocyte competence, leading to subsequent benefits in embryonic development in different species. There, therefore, has been an increase in oocyte cAMP concentrations with several treatments and different approaches, such as invasive AC, stimulators of AC activity, PDE inhibitors, and cAMP analogs. The aim of this review is to comprehensively evaluate and provide data related to (i) the use of cAMP modulators during IVM and the effects on completion of meiosis and cytoplasmic reorganization, which are required for development of oocytes with the capacity to contribute to fertilization and subsequent embryonic development; and (ii) the main cAMP modulators and the effects when used in oocyte IVM.
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Affiliation(s)
- Gabriela Ramos Leal
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária - Rua Vital Brazil Filho, 64, 24230-340, Niterói, Rio de Janeiro, Brazil.
| | - Clara Ana Santos Monteiro
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária - Rua Vital Brazil Filho, 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Joanna Maria Gonçalves Souza-Fabjan
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária - Rua Vital Brazil Filho, 64, 24230-340, Niterói, Rio de Janeiro, Brazil.
| | - Carlos Otávio de Paula Vasconcelos
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária - Rua Vital Brazil Filho, 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Luiz Altamiro Garcia Nogueira
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária - Rua Vital Brazil Filho, 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Ana Maria Reis Ferreira
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária - Rua Vital Brazil Filho, 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Raquel Varella Serapião
- Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro (PESAGRO RIO) - Avenida São Boa Ventura, 770, 24120-19, Fonseca, Niterói, Rio de Janeiro, Brazil
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Bomfim MM, Andrade GM, Del Collado M, Sangalli JR, Fontes PK, Nogueira MFG, Meirelles FV, da Silveira JC, Perecin F. Antioxidant responses and deregulation of epigenetic writers and erasers link oxidative stress and DNA methylation in bovine blastocysts. Mol Reprod Dev 2017; 84:1296-1305. [PMID: 29106766 DOI: 10.1002/mrd.22929] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 10/30/2017] [Indexed: 12/31/2022]
Abstract
Early mammalian embryos derived from in vitro fertilization are exposed to conditions distinct from the native oviduct-uterine environment, including atmospheric oxygen that promotes cellular oxidative stress and alters gene expression. High oxygen partial pressure during embryo development is associated with low pregnancy rates and increased embryonic apoptosis. We investigated how bovine embryos responded to high (20%) or low (5%) oxygen partial pressure during in vitro culture, evaluating levels of reactive oxygen species (ROS) as well as changes in the expression of oxidative stress- and epigenetic-related transcripts and miRNAs in blastocysts. Additionally, we determined the global DNA methylation levels in the resulting embryos. Our data indicated that bovine blastocysts produced in vitro under high oxygen partial pressure possessed elevated ROS abundance and exhibited increased expression of CAT, GLRX2, KEAP1, NFR2, PRDX1, PRDX3, SOD1, TXN, and TXNRD1, versus reduced levels of the oxidative stress-related bta-miR-210. These stressed embryos also presented altered expression of the epigenetic-associated transcripts DNMT3A, H2AFZ, H3F3B, HDAC2, MORF4L2, REST, and PAF1. In addition, we demonstrated that embryos cultured under high oxygen partial pressure have increased global DNA methylation, suggesting that DNA hypermethylation is mediated by the deregulation of epigenetic-related enzymes due to oxidative stress.
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Affiliation(s)
- Monalisa M Bomfim
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Gabriella M Andrade
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Maite Del Collado
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Juliano R Sangalli
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Patrícia K Fontes
- Department of Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
| | - Marcelo F G Nogueira
- Department of Biological Sciences, School of Science, Humanities and Languages, São Paulo State University, Assis, SP, Brazil
| | - Flávio V Meirelles
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Juliano C da Silveira
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Felipe Perecin
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
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Tauroursodeoxycholic acid enhances the development of porcine embryos derived from in vitro-matured oocytes and evaporatively dried spermatozoa. Sci Rep 2017; 7:6773. [PMID: 28754923 PMCID: PMC5533721 DOI: 10.1038/s41598-017-07185-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022] Open
Abstract
Evaporative drying (ED) is an alternative technique for long-term preservation of mammalian sperm, which does not require liquid nitrogen or freeze-drying equipment, but offers advantages for storage and shipping at ambient temperature and low cost. However, the development of zygotes generated from these sperms was poor. Here, we demonstrated that the supplementation of tauroursodeoxycholic acid (TUDCA), an endogenous bile acid, during embryo culture improved the developmental competency of embryos derived from in vitro matured pig oocytes injected intracytoplasmically with boar ED spermatozoa by reducing the production of reactive oxygen species, the DNA degradation and fragmentation, and the expression of apoptosis-related gene Bax and Bak, and by increasing the transcription of anti-apoptosis gene Bcl-XL and Bcl-2. Furthermore, TUDCA treatment promoted the blastocyst quality manifested by the total cell numbers and the ratio of inner cell mass. Taken together, our data suggest that evaporative drying would be a potentially useful method for the routine preservation of boar sperm in combination with further optimization of subsequently embryo culture conditions.
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Cao X, Li J, Xue H, Wang S, Zhao W, Du Z, Yang Y, Yue Z. Effect of vitrification on meiotic maturation, mitochondrial distribution and glutathione synthesis in immature silver fox cumulus oocyte complexes. Theriogenology 2017; 91:104-111. [DOI: 10.1016/j.theriogenology.2016.12.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 12/22/2016] [Accepted: 12/29/2016] [Indexed: 10/20/2022]
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Fan Z, Yang M, Regouski M, Polejaeva IA. Effects of three different media on in vitro maturation and development, intracellular glutathione and reactive oxygen species levels, and maternal gene expression of abattoir-derived goat oocytes. Small Rumin Res 2017. [DOI: 10.1016/j.smallrumres.2016.12.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Gasparrini B. In vivo embryoproduction in buffalo: current situation and future perspectives. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2007.s2.92] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Li XX, Lee KB, Lee JH, Kim KJ, Kim EY, Han KW, Park KS, Yu J, Kim MK. Glutathione and cysteine enhance porcine preimplantation embryo development in vitro after intracytoplasmic sperm injection. Theriogenology 2013; 81:309-14. [PMID: 24139601 DOI: 10.1016/j.theriogenology.2013.09.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 09/17/2013] [Accepted: 09/19/2013] [Indexed: 10/26/2022]
Abstract
Because intracytoplasmic sperm injection (ICSI) had been introduced to animal science, not only reproductive biology of domestic animals, but also medicine to treat infertility has been developed. This assisted reproductive technology is beneficial for generating transgenic animals, especially pigs, because polyspermy is the greatest hurdle in porcine IVF when researchers make highly qualified preimplantation embryos. However, ICSI-derived embryos expressed high level of reactive oxygen species (ROS), which are known to cause serious dysfunction during preimplantation development. The objective of this study was to investigate the developmental competence, ROS level, and apoptosis index when glutathione (GSH) or cysteine was supplemented into the in vitro culture medium for ICSI-derived porcine embryos. First, we evaluated the effect of different concentrations of GSH or cysteine on developmental ability of porcine ICSI-derived embryos. The cleavage rate (79.6%) and the blastocyst formation rate (20.9%) were significantly improved in culture medium supplemented with 1 mmol/L GSH compared with other concentrations or no supplementation. Also, 1.71 mmol/L cysteine showed a significantly higher proportion of cleavage (80.7%) and blastocyst formation (22.5%) than other cysteine-supplemented groups. Next, we confirmed that intracellular ROS level was significantly reduced in the group of blastocysts cultured with GSH or cysteine after ICSI compared with the no supplementation group. Finally, we found that terminal uridine nick-end labeling index, fragmentation, and total apoptosis were significantly decreased and the total cell number was significantly increased in blastocysts when ICSI-derived embryos were cultured with supplementation of 1.71 mmol/L cysteine or 1 mmol/L GSH. Taken together, these results strongly indicate that GSH or cysteine can improve the developmental competence of porcine ICSI-derived embryos by reducing intracellular ROS level and the apoptosis index.
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Affiliation(s)
- Xiao Xia Li
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Kyung-Bon Lee
- Institute of Agricultural Science, Chungnam National University, Daejeon, Korea
| | - Ji Hye Lee
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Keun Jung Kim
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Eun Young Kim
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Kil-Woo Han
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Kang-Sun Park
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Jung Yu
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea
| | - Min Kyu Kim
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Korea.
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Singh KP, Kaushik R, Garg V, Sharma R, George A, Singh MK, Manik RS, Palta P, Singla SK, Chauhan MS. Expression pattern of pluripotent markers in different embryonic developmental stages of buffalo (Bubalus bubalis) embryos and putative embryonic stem cells generated by parthenogenetic activation. Cell Reprogram 2013. [PMID: 23194456 DOI: 10.1089/cell.2012.0032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
In this study, we describe the production of buffalo parthenogenetic blastocysts and subsequent isolation of parthenogenetic embryonic stem cell (PGESC)-like cells. PGESC colonies exhibited dome-shaped morphology and were clearly distinguishable from the feeder layer cells. Different stages of development of parthenogenetic embryos and derived embryonic stem cell (ESC)-like cells expressed key ESC-specific markers, including OCT-4, NANOG, SOX-2, FOXD3, REX-1, STAT-3, TELOMERASE, NUCLEOSTEMIN, and cMYC. Immunofluorescence-based studies revealed that the PGESCs were positive for surface-based pluripotent markers, viz., SSEA-3, SSEA-4, TRA 1-80, TRA 1-60, CD-9, and CD-90 and exhibited high alkaline phosphatase (ALP) activity. PGEC cell-like cells formed embryoid body (EB)-like structures in hanging drop cultures and when cultured for extended period of time spontaneously differentiated into derivatives of three embryonic germ layers as confirmed by RT-PCR for ectodermal (CYTOKERATIN8, NF-68), mesodermal (MSX1, BMP-4, ASA), and endodermal markers (AFP, HNF-4, GATA-4). Differentiation of PGESCs toward the neuronal lineage was successfully directed by supplementation of serum-containing media with retinoic acid. Our results indicate that the isolated ESC-like cells from parthenogenetic blastocyst hold properties of ESCs and express markers of pluripotency. The pluripotency markers were also expressed by early cleavage-stage of buffalo embryos.
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Affiliation(s)
- Karn P Singh
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, Haryana, India
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18
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Effect of dibutyryl cyclic adenosine monophosphate on reactive oxygen species and glutathione of porcine oocytes, apoptosis of cumulus cells, and embryonic development. ZYGOTE 2012; 21:305-13. [PMID: 23171604 DOI: 10.1017/s0967199412000585] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The present study was conducted to investigate the effect of dibutyryl cyclic adenosine monophosphate (dbcAMP) supplemented into porcine maturation medium on reactive oxygen species (ROS) and glutathione (GSH) levels of oocytes, and apoptosis of cumulus cells (CC). In addition, the effect of dbcAMP on embryonic development following in vitro fertilization (IVF) or parthenogenetic activation (PA) was determined. Cumulus-oocyte complexes (COCs) were cultured in 0 mM (control), 0.5 mM, 1 mM, 5 mM, or 10 mM dbcAMP-supplemented medium for 22 h, then for another 22 h without dbcAMP. GSH and ROS levels of oocytes were assessed at 44 h of culture by dichlorohydrofluorescein diacetate or 4-chloromethyl-6,8-difluoro-7-hydroxycoumarin staining, respectively. Additionally, COCs were cultured in 0.5 mM or 1 mM dbcAMP and then fertilized in vitro or activated parthenogenetically. Embryonic development and blastocyst cell numbers and apoptosis levels on day 8 of culture were investigated. CC apoptosis at 44 h of culture and blastocyst apoptosis were assessed by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. GSH levels in the 0.5 mM dbcAMP and control groups were increased (P < 0.05), while levels of oocyte ROS and CC apoptosis in the control, 0.5 mM, and 1 mM dbcAMP groups were significantly lower than the levels in other groups. Cleavage and blastocyst rates, cell numbers, and apoptosis levels were not significantly different in embryos derived by either IVF or PA among the groups, with the exception of significantly increased apoptotic levels in IVF blastocysts produced from oocytes treated with 1 mM dbcAMP. In conclusion, dbcAMP treatment during in vitro maturation (IVM) did not improve embryonic development under our study's parameters compared with control conditions, although 0.5 mM dbcAMP showed significantly higher GSH levels and lower blastocyst apoptotic levels compared with 1 mM dbcAMP.
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Elamaran G, Singh KP, Singh MK, Singla SK, Chauhan MS, Manik RS, Palta P. Oxygen Concentration and Cysteamine Supplementation DuringIn vitroProduction of Buffalo (Bubalus bubalis) Embryos Affect mRNA Expression ofBCL-2, BCL-XL, MCL-1, BAXandBID. Reprod Domest Anim 2012; 47:1027-36. [DOI: 10.1111/j.1439-0531.2012.02009.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Mukherjee A, Kumar D, Singh KP, Chauhan MS, Singla SK, Palta P, Manik RS. Assessment of DNA damage during in vitro development of buffalo (Bubalus bubalis) embryos: effect of cysteamine. Reprod Domest Anim 2011; 45:1118-21. [PMID: 19515031 DOI: 10.1111/j.1439-0531.2009.01484.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Comet assay was used in the present study to examine DNA damage to buffalo oocytes and embryos during in vitro culture. Embryos were produced in vitro from oocytes obtained from slaughterhouse ovaries in presence of cysteamine (IVM and IVC media supplemented with 50 and 100 μM, respectively) or in its absence (controls). Compared to controls, cysteamine supplementation increased (p < 0.01) cleavage rate and proportion of oocytes that developed to 8- to 16-cell stage. The incidence of DNA damage was lower (p < 0.01) in cysteamine group than that in controls at 8- to 16- (19.3 ± 4.24 vs 72.0 ± 5.22%) but not in 2-cell stage embryos (11.7 ± 5.63 vs 20.8 ± 5.49%) or in mature oocytes (5.3 ± 3.43 vs 10.3 ± 4.73%). The tail length, which indicates magnitude of DNA damage, was shorter (p < 0.01) in cysteamine group than in controls in mature oocytes (25.5 ± 0.5 vs 36.0 ± 0.71 pixels) and 8- to 16-cell stage (49.2 ± 1.64 vs 152.7 ± 1.28 pixels) but not in 2-cell stage embryos (36.3 ± 1.54 vs 36.4 ± 0.75 pixels). Also, exposure of oocytes/embryos to UV radiation or H2O2 caused extensive DNA damage. In conclusion, these results suggest that oocytes/embryos suffer from DNA damage during progress of in vitro culture, which can be partly ameliorated by cysteamine supplementation of culture media.
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Affiliation(s)
- A Mukherjee
- National Dairy Research Institute, Karnal, India
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21
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Effect of cysteamine and epidermal growth factor supplementation on the in vitro maturation rate of ovine oocytes. Small Rumin Res 2011. [DOI: 10.1016/j.smallrumres.2010.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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De A, Malakar D, Akshey Y, Jena M, Garg S, Dutta R, Sahu S. In vitro development of goat (Capra hircus) embryos following cysteamine supplementation of the in vitro maturation and in vitro culture media. Small Rumin Res 2011. [DOI: 10.1016/j.smallrumres.2011.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Curnow EC, Ryan JP, Saunders DM, Hayes ES. Oocyte glutathione and fertilisation outcome of Macaca nemestrina and Macaca fascicularis in in vivo- and in vitro-matured oocytes. Reprod Fertil Dev 2010; 22:1032-40. [PMID: 20591337 DOI: 10.1071/rd09308] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Accepted: 02/01/2010] [Indexed: 12/17/2022] Open
Abstract
Fertilisation and development of IVM non-human primate oocytes is limited compared with that of in vivo-matured (IVO) oocytes. The present study describes the IVM of macaque oocytes with reference to oocyte glutathione (GSH). Timing of maturation, comparison of IVM media and cysteamine (CYS) supplementation as a modulator of GSH were investigated. A significantly greater proportion of oocytes reached MII after 30 h compared with 24 h of IVM. Following insemination, IVM oocytes had a significantly lower incidence of normal fertilisation (i.e. 2PN = two pronuclei and at least one polar body) and a higher rate of abnormal fertilisation (1PN = one pronucleus and at least one polar body) compared with IVO oocytes. Immunofluorescence of 1PN zygotes identified incomplete sperm head decondensation and failure of male pronucleus formation as the principal cause of abnormal fertilisation in IVM oocytes. The IVO oocytes had significantly higher GSH content than IVM oocytes. Cumulus-denuded oocytes had significantly lower GSH following IVM compared with immature oocytes at collection. Cysteamine supplementation of the IVM medium significantly increased the GSH level of cumulus-intact oocytes and reduced the incidence of 1PN formation, but did not improve GSH levels of the denuded oocyte. Suboptimal GSH levels in macaque IVM oocytes may be related to reduced fertilisation outcomes.
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Affiliation(s)
- E C Curnow
- Washington National Primate Research Center, University of Washington, Seattle, WA 98121, USA.
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24
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Curnow EC, Ryan JP, Saunders DM, Hayes ES. In vitro developmental potential of macaque oocytes, derived from unstimulated ovaries, following maturation in the presence of glutathione ethyl ester. Hum Reprod 2010; 25:2465-74. [PMID: 20729236 DOI: 10.1093/humrep/deq225] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The inadequacies of oocyte in vitro maturation (IVM) systems for both non-human primates and humans are evidenced by reduced fertilization and poor embryonic development, and may be partly explained by significantly lower glutathione (GSH) contents compared with in vivo matured (IVO) oocytes. As this influence has not been fully explored, this study investigated the effect of the GSH donor, glutathione ethyl ester (GSH-OEt), on the IVM and development of macaque oocytes as a model of human oocyte IVM. METHODS Macaque oocytes derived from unstimulated ovaries were cultured in mCMRL-1066 alone or supplemented with 3 or 5 mM GSH-OEt. In vitro matured oocytes were subjected to the GSH assay, fixed for the assessment of spindle morphology or prepared ICSI. Embryo development of zygotes cultured in mHECM-9 was assessed up to Day 9 post-ICSI. RESULTS Supplementation of the maturation medium with GSH-OEt significantly increased oocyte maturation and normal fertilization rates compared with control oocytes, but only 5 mM GSH-OEt significantly increased the oocyte and cumulus cell GSH content. Confocal microscopy revealed significant differences in the spindle morphology between IVO and control in vitro matured metaphase II oocytes. Oocytes matured with 5 mM GSH-OEt exhibited spindle area and spindle pole width similar to that seen in the IVO oocyte. While no significant differences were observed in blastocyst rates, addition of 3 mM GSH-OEt during IVM significantly increased the proportion of embryos developing to the 5-8 cell stage while 5 mM GSH-OEt significantly increased the proportion of morula-stage embryos compared with controls. CONCLUSIONS Supplementation of the IVM medium with GSH-OEt promotes better maturation and normal fertilization of macaque oocytes compared with non-supplemented medium. However, further improvement of the primate oocyte IVM culture system is required to support better blastocyst development of oocytes derived from unstimulated ovaries.
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Affiliation(s)
- E C Curnow
- Washington National Primate Research Center, University of Washington, Seattle, WA 98121, USA.
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25
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Developmental potential of sheep oocytes cultured in different maturation media: effects of epidermal growth factor, insulin-like growth factor I, and cysteamine. Fertil Steril 2010; 94:335-40. [DOI: 10.1016/j.fertnstert.2009.01.160] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2008] [Revised: 01/28/2009] [Accepted: 01/29/2009] [Indexed: 11/18/2022]
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26
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Deleuze S, Goudet G. Cysteamine Supplementation ofIn vitroMaturation Media: A Review. Reprod Domest Anim 2010; 45:e476-82. [DOI: 10.1111/j.1439-0531.2010.01587.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Barakat IAH, Hassan AM, Alam SS, Khalil WKB. Genetic and Biochemical Effects of Natural Extracts on in Vitro Maturation of Egyptian Buffalo Oocytes. CYTOLOGIA 2010. [DOI: 10.1508/cytologia.75.243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Hammam A, Whisnant C, Elias A, Zaabel S, Hegab A, Abu-El Nag E. Effect of Media, Sera and Hormones on in vitro Maturation and Fertilization of Water Buffalos (Bubalus bubalis). ACTA ACUST UNITED AC 2010. [DOI: 10.3923/javaa.2010.27.31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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29
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Suresh KP, Nandi S, Mondal S. Factors affecting laboratory production of buffalo embryos: a meta-analysis. Theriogenology 2009; 72:978-85. [PMID: 19695691 DOI: 10.1016/j.theriogenology.2009.06.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2009] [Revised: 06/25/2009] [Accepted: 06/28/2009] [Indexed: 11/16/2022]
Abstract
In vitro fertilization (IVF) provides an excellent and inexpensive source of embryos for carrying out basic research on developmental physiology, farm animal breeding, and for commercial applications. Meta-analysis of the results from different publications rather than a narrative review may provide a current status of this technology in buffalo (Bubalus bubalis). In order to gain an idea of the factors affecting the IVF in buffalo, a review of the various studies conducted on buffalo IVF and a meta-analysis of their findings was undertaken. More than 100 articles published from 1991 to 2008 were searched, and results were subjected to meta-analysis to determine the treatment variations without any bias. Thirty factors affecting in vitro embryo production in buffalo were considered. Initially, both fixed- and random-effect models were used. We did not observe any heterogeneity between the studies. Thereafter, all the studies were pooled using the fixed-effect model for analysis. Our analysis suggested that good buffalo oocytes with more than three to five cumulus layers recovered from large-sized follicles in cold seasons when cultured in TCM-199 supplemented with serum, follicle-stimulating hormone, and cysteamine resulted in maximum maturation rate and subsequent embryonic development after insemination. The values obtained in the current study may be considered for a simulation model in establishing a cost-effective suitable method for buffalo IVF in further planned research.
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Affiliation(s)
- K P Suresh
- National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
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30
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Ge L, Sui HS, Lan GC, Liu N, Wang JZ, Tan JH. Coculture with cumulus cells improves maturation of mouse oocytes denuded of the cumulus oophorus: observations of nuclear and cytoplasmic events. Fertil Steril 2008; 90:2376-88. [PMID: 18191127 DOI: 10.1016/j.fertnstert.2007.10.054] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2007] [Revised: 10/22/2007] [Accepted: 10/22/2007] [Indexed: 11/24/2022]
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31
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Deleuze S, Dubois CS, Caillaud M, Bruneau B, Goudet G, Duchamp G. Influence of cysteamine on in vitro maturation, in vitro and in vivo fertilization of equine oocytes. Reprod Domest Anim 2008; 45:1-7. [PMID: 18992121 DOI: 10.1111/j.1439-0531.2008.01122.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Contents The effect of cysteamine on in vitro nuclear and cytoplasmic maturation of equine oocytes collected by transvaginal ultrasound guided follicular aspiration was assessed. Oocytes were matured in vitro with (cysteamine group) or without (control group) cysteamine. The nuclear stage after DNA Hoechst staining, penetration rates after two different in vitro fertilization (IVF) techniques (IVF media with ionophore and Hepes buffer with heparin) and the embryo yield following oocyte intra-oviductal transfer were used as a criterion for assessing nuclear and cytoplasmic maturation, respectively. Contrary to the data described in other domestic species, there was no effect of cysteamine on in vitro nuclear maturation, IVF or in vivo embryonic development under our conditions. Ovum pick up yields (52%) and maturation rates (control group: 47% and cysteamine group: 55%) were similar to those previously reported. From 57 oocytes transferred to the oviduct in each group, the number of embryos collected was 10 (17%) in the control group and five in the cysteamine group (9%). Those two percentages were not statistically different (p > 0.05). No effect of IVF technique was seen on the success rate (6%) in each group.
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Affiliation(s)
- S Deleuze
- Faculté de Médecine Vétérinaire, Département des Sciences Cliniques-Clinique Equine, Université de Liège, Liège, Belgium.
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Cui MS, Fan YP, Wu Y, Hao ZD, Liu S, Chen XJ, Zeng SM. Porcine cumulus cell influences ooplasmic mitochondria-lipid distributions, GSH-ATP contents and calcium release pattern after electro-activation. Theriogenology 2008; 71:412-21. [PMID: 18789518 DOI: 10.1016/j.theriogenology.2008.08.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Revised: 07/08/2008] [Accepted: 08/07/2008] [Indexed: 10/21/2022]
Abstract
The objective was to explore mechanisms of the influence of porcine cumulus cells (CC) on oocyte maturation. Immature porcine oocytes were matured in groups of denuded oocyte (DOs), cumulus-oocyte complexes (COCs), denuded oocytes co-cultured with CC (DoCC), or with cumulus-oocyte complexes (DoCOCs). Ooplasmic mitochondria-lipid distributions, glutathione (GSH)-adenosine triphosphate (ATP) contents, calcium release pattern, and developmental competence after parthenogenetic activation were assessed after IVM. The portion of matured oocytes after IVM and the developmental competence and GSH content in single oocytes were lower in DOs than in COCs (P<0.05). In contrast, the maturation rate and development in DoCOCs and COCs were higher than in DoCC and DOs (P<0.05). The blastocyst rate in DoCOCs was higher than in DOs (P<0.05), and ATP content in COCs was higher than in all other groups (P<0.01). In addition, the rate of oocytes with damaged oolemma in DOs (35%) was significantly higher than in COCs (3%), DoCOCs (7%), and DoCC (10%). The rate of oocytes with evenly distributed mitochondria was 70% in DOs, which was significantly lower than in COCs and DoCC (89 and 84%, respectively). The percentage of oocytes with normal lipid droplets distributions in COCs (70%) was significantly higher than in three other groups, whereas both percentages in DoCC and DoCOCs were higher than in DOs (P<0.05). The duration of [Ca(2+)] rise in DOs was longer than in three other groups, whereas the duration was shortest in COCs. The amplitude of the [Ca(2+)] rise in DOs was significantly lower than in other groups (P<0.05), but the amplitude did not differ significantly among DoCC, DoCOCs and COCs. In conclusion, the presence of porcine CC during IVM functionally affected ooplasmic mitochondria-lipid distributions and GSH-ATP contents, which may affect the calcium release pattern and developmental competence of oocytes after electro-activation.
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Affiliation(s)
- M S Cui
- Laboratory of Animal Embryonic Biotechnology, College of Animal Science and Technology, China Agricultural University, Beijing, PR China
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Singhal S, Prasad S, Singh B, Prasad JK, Gupta HP. Effect of including growth factors and antioxidants in maturation medium used for in vitro culture of buffalo oocytes recovered in vivo. Anim Reprod Sci 2008; 113:44-50. [PMID: 18620823 DOI: 10.1016/j.anireprosci.2008.05.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2008] [Revised: 05/17/2008] [Accepted: 05/30/2008] [Indexed: 10/22/2022]
Abstract
This study examined the effect of including one of two growth factors (100 ng/ml IGF-1 or 20 ng/ml EGF) in combination with one of two antioxidants (50 microM cysteamine or 50 microM beta-mercaptoethanol) in maturation, fertilization and subsequent development of buffalo oocytes. The oocytes were recovered by in vivo ovum pick-up technique from six Murrah buffalo heifers twice a week over a period of 16 weeks. Immediately after ovum pick-up oocytes recovered from six donors were allocated randomly to five different maturation treatments. The control treatment was the basic maturation medium (MM; TCM-199 supplemented with 10% FBS, 10 IU/ml LH, 0.5 microg/ml FSH, 1 microg/ml estradiol-17beta and 50 microg/ml gentamicin). The other four treatments consisted of the control maturation medium (MM) plus one combination of a growth factor and an antioxidant viz. IGF-1+cysteamine; IGF-1+beta-ME; EGF+cysteamine or EGF+beta-ME. The total number of oocytes assigned to each maturation treatment ranged from 31 to 66. After maturation in different maturation medium, media used for in vitro fertilization and subsequent development of embryo was same for all groups. Data were analysed using Chi-square test. The maturation rate observed for the growth factor plus antioxidant treatments was similar to that for the control (90.4%). The highest cleavage rate recorded in the IGF-1+cysteamine treatment (71.9%) which was significantly higher (P<0.05) than the IGF-1+beta-ME (45.2%) and EGF+beta-ME (46.4%) treatments, but not significantly differ from the control (63.8%) and EGF+cysteamine treatment (60.7%). The proportion of cleaved oocytes those developed to blastocyst stage was significantly higher in the IGF-1+cysteamine treatment (52.2%; P<0.05) than in the control (23.3%), the EGF+cysteamine (13.5%) or the EGF+beta-ME (7.7%) treatments, but did not differ significantly from the IGF-1+beta-ME (28.6%) treatment. Following non-surgical transfer of 15 embryos to 14 synchronized recipients, four became pregnant and only one recipient sustained the pregnancy as long as 4.5 months when spontaneous abortion occurred. It was concluded that supplementing the maturation medium with IGF-1+cysteamine improved the production of buffalo embryos significantly in vitro culture.
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Affiliation(s)
- Sumit Singhal
- Department of Animal Reproduction, Gynaecology & Obstetrics, College of Veterinary and Animal Sciences, G.B. Pant University of Agriculture & Technology, Pantnagar 263145, Uttarakhand, India
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Anand T, Kumar D, Chauhan MS, Manik RS, Palta P. Cysteamine supplementation of in vitro maturation medium, in vitro culture medium or both media promotes in vitro development of buffalo (Bubalus bubalis) embryos. Reprod Fertil Dev 2008; 20:253-7. [PMID: 18255014 DOI: 10.1071/rd07167] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Accepted: 11/15/2007] [Indexed: 11/23/2022] Open
Abstract
The effects of supplementation of in vitro maturation (IVM) or in vitro culture (IVC) or both IVM and IVC media with cysteamine on the yield, hatching rate (HR) and total cell number (TCN) of buffalo blastocysts were examined. Oocytes obtained from slaughterhouse buffalo ovaries were subjected to IVM and IVF. The IVM or IVC media were supplemented with 0, 50, 100 or 200 microm cysteamine. Supplementation of IVM medium with 50 microm cysteamine increased (P < 0.01) the cleavage rate and blastocyst yield without affecting the HR and TCN whereas a higher concentration of 200 microm significantly (P < 0.05) reduced the blastocyst yield but not TCN. Similar increases in blastocyst yield, without any effect on HR and TCN were observed after supplementation of the IVC medium with 100 (P < 0.01) or 50 microm (P < 0.05) cysteamine, whereas 200 microm cysteamine was ineffective. Supplementation of both IVM medium with 50 microm cysteamine and of IVC medium with 100 microm cysteamine increased the yield of blastocysts and hatched blastocyst by over 100% (P < 0.01) compared with the controls without any adverse effects on HR or TCN. The results of the present study suggest that supplementation of both IVM and IVC media improves the yield of blastocysts without compromising their health.
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Affiliation(s)
- T Anand
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal-132 001, India
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Curnow EC, Ryan J, Saunders D, Hayes ES. Bovine in vitro oocyte maturation as a model for manipulation of the γ-glutamyl cycle and intraoocyte glutathione. Reprod Fertil Dev 2008; 20:579-88. [DOI: 10.1071/rd08041] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Accepted: 04/10/2008] [Indexed: 11/23/2022] Open
Abstract
Glutathione (GSH) is the main non-enzymatic defence against oxidative stress and is a critical intracellular component required for oocyte maturation. In the present study, several modulators of intracellular GSH were assessed for their effect on the in vitro maturation (IVM) and intracellular GSH content of bovine metaphase (MII) oocytes. Of the five GSH modulators tested, only the cell-permeable GSH donor glutathione ethyl ester (GSH-OEt) significantly increased the GSH content of IVM MII oocytes in a concentration-dependent manner without adversely affecting oocyte maturation rate. The GSH level in IVM MII oocytes was greatly influenced by the presence or absence of cumulus cells and severely restricted when oocytes were cultured in the presence of buthionine sulfoximine (BSO), an inhibitor of GSH synthesis. The addition of GSH-OEt to cumulus-denuded or BSO-treated oocytes increased the GSH content of bovine MII oocytes. Supplementation of the maturation medium with bovine serum albumin (BSA) or fetal calf serum (FCS) affected the GSH content of IVM MII oocytes, with greater levels attained under BSA culture conditions. The addition of GSH-OEt to the maturation medium increased the GSH content of IVM MII oocytes, irrespective of protein source. Spindle morphology, as assessed by immunocytochemistry and confocal microscopy, displayed distinct alterations in response to changes in oocyte GSH levels. GSH depletion caused by BSO treatment tended to widen spindle poles and significantly increased spindle area. Supplementation of the IVM medium with GSH-OEt increased spindle length, but did not significantly alter spindle area or spindle morphology. GSH-OEt represents a novel oocyte-permeable and cumulus cell-independent approach for effective elevation of mammalian oocyte GSH levels.
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Balasubramanian S, Rho GJ. Effect of cysteamine supplementation of in vitro matured bovine oocytes on chilling sensitivity and development of embryos. Anim Reprod Sci 2007; 98:282-92. [PMID: 16644148 DOI: 10.1016/j.anireprosci.2006.03.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2005] [Accepted: 03/17/2006] [Indexed: 10/24/2022]
Abstract
In vitro techniques for production of bovine embryos including in vitro oocyte maturation (IVM), fertilization (IVF) and culture (IVC) are becoming increasingly employed for a variety of research purposes. However, decreased viability following cryopreservation by conventional methods has limited commercial applications of these technologies. A practical alternative to facilitate transport would be to arrest development by chilling without freezing. The present research was undertaken to evaluate chilling sensitivity of IVM-IVF embryos at different stages of development, and to determine possible beneficial effects of cysteamine treatment during IVM, previously shown to enhance embryo development in culture, on survival following chilling at different stages. Embryos produced by standard IVM-IVF-IVC methods were chilled to 0 degrees C for 30 min at 2-cell (30-34 h post-insemination, hpi), 8-cell (48-52 hpi) or blastocyst (166-170 hpi) stages. Viability after chilling was assessed by IVC with development to expanded blastocyst stage determined on days 7 and 8 post-insemination (pi) and hatching blastocyst stage determined on days 9 and 10 pi. Control embryos at the same stages were handled similarly, but without chilling, and development during culture similarly assessed. The effect of cysteamine supplementation (100 microM) of the IVM medium was determined for both chilled and non-chilled (control) embryos. Cysteamine supplementation during IVM had no significant effect on oocyte maturation or fertilization, but increased the proportions of oocytes developing to blastocyst stage by day 7 (13.7+/-0.9% versus 7.2+/-0.9%; P<0.05), total blastocysts (20.5+/-0.9% versus 15.3+/-1.3%; P<0.05), and hatching blastocysts (16.8+/-1.6% versus 12.0+/-1.5%; P<0.05). The greater survival in terms of hatching (78.6+/-7.0) following chilling of blastocysts produced by IVM-IVF of oocytes matured in media supplemented with cysteamine offers promise for applications requiring short-term storage to facilitate transport of in vitro produced bovine embryos.
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Affiliation(s)
- S Balasubramanian
- Department of Animal Reproduction, Gynaecology and Obstetrics, Madras Veterinary College, Tamilnadu Veterinary and Animal Sciences University, Chennai 600007, Tamilnadu, India
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Silva PFN, Gadella BM, Colenbrander B, Roelen BAJ. Exposure of bovine sperm to pro-oxidants impairs the developmental competence of the embryo after the first cleavage. Theriogenology 2007; 67:609-19. [PMID: 17056104 DOI: 10.1016/j.theriogenology.2006.09.032] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 09/14/2006] [Accepted: 09/17/2006] [Indexed: 10/24/2022]
Abstract
The present study describes the effects of exposure of bovine sperm to mild and more intense ROS generating conditions. The membrane integrity of the incubated sperm was assessed and the incubated sperm were used for IVF after which the percentages of cleavage and blastocyst formation were determined for a period up to 9 days. The incubated sperm samples showed increased levels of molecular oxidation in the plasma membrane, the mitochondria, the cytosol and to a lesser extent in the sperm's DNA. The sperm membrane integrity as well as the first cleavage rates obtained with sperm from mild ROS generating conditions (100 microM H2O2) were not different from sperm incubated without pro-oxidants. However, exposure of sperm to more severe oxidative stress (500 mM H2O2 or a combination of 100 microM ascorbic acid, 20 microM FeSO4 and 500 microM H2O2) led to plasma membrane oxidation, reduced percentages of cleaved embryos and a reduction in the percentages of cleaved embryos that developed to the blastocyst stage. From these results, we conclude that the impact of oxidative stress to sperm becomes primarily manifest after the first cleavage of the formed zygote. Importantly, the level of lipid peroxidation in the sperm plasma membrane significantly correlates with blastocyst formation when the corresponding sperm is used for in vitro fertilization of oocytes.
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Affiliation(s)
- Patricia F N Silva
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands
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38
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Luciano AM, Goudet G, Perazzoli F, Lahuec C, Gérard N. Glutathione content and glutathione peroxidase expression in in vivo and in vitro matured equine oocytes. Mol Reprod Dev 2006; 73:658-66. [PMID: 16493673 DOI: 10.1002/mrd.20469] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The in vitro developmental competence of equine oocytes is still low in comparison with other domestic mammals. A major factor affecting the viability of cells during in vitro culture is the increased oxidative stress. Oxidative modifications could be responsible for oocyte incompetence for in vitro maturation (IVM). Cysteamine, a glutathione (GSH) synthesis enhancer, has been shown to increase intracellular GSH content and to improve embryo development when added during IVM of bovine, porcine, and ovine oocytes. The aim of the present study was (1) to determine whether equine cumulus-oocyte complexes (COCs) benefit from the addition of cysteamine during IVM, (2) to compare the GSH content of oocytes after in vivo maturation and IVM, (3) to assess whether cysteamine administration during IVM of equine oocyte enhances early embryonic developmental capability following ICSI, (4) to study the glutathione peroxidase (GPX) mRNA level in COCs. In vivo matured COCs were collected by aspiration from preovulatory follicles, and analyzed at collection. Immature COCs were collected in vivo or from slaughterhouse ovaries and matured in culture media supplemented or not with 100 microM cysteamine. After nuclear stage assessment, oocytes were analyzed for GSH concentration and both oocytes and cumulus cells were analyzed for GPX and GAPDH mRNA. Our data showed that the maturation capability was similar in both in vivo aspirated oocytes and in those isolated from slaughterhouse ovaries. Moreover, the addition of cysteamine during IVM affected neither GSH content nor maturation rate. At the time of collection, intra-oocyte GSH content was not influenced by the chromatin status. GSH concentration was similar in in vivo and in vitro matured metaphase II (MII) stage oocytes, and was significantly higher in MII than immature germinal vesicle stage oocytes. Moreover, the presence of serum inhibited whereas its absence stimulated the accumulation of GSH within oocytes during IVM. After ICSI, a similar proportion of zygotes in each group developed beyond the two-cell stage after 72 hr of culture. Cumulus cells expressed GPX mRNA, while GPX transcript was absent in both immature and mature oocytes. Cumulus expression of GPX mRNA was significantly higher when analyzed at collection than after IVM. Taken together, our results demonstrate that in equine oocytes, GSH increases during IVM but the relative intra-oocyte content of this thiol does not affect maturation and early development efficiency after fertilization. We hypothesize that factor(s) other than GSH/GPX are responsible for the limited in vitro early developmental capability of equine oocytes.
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Affiliation(s)
- Alberto M Luciano
- Institute of Anatomy of Domestic Animals, Histology and Embryology, Faculty of Veterinary Medicine, University of Milan, Milan, Italy.
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39
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Luvoni GC, Chigioni S, Perego L, Lodde V, Modina S, Luciano AM. Effect of gonadotropins during in vitro maturation of feline oocytes on oocyte-cumulus cells functional coupling and intracellular concentration of glutathione. Anim Reprod Sci 2006; 96:66-78. [PMID: 16386859 DOI: 10.1016/j.anireprosci.2005.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2005] [Revised: 10/04/2005] [Accepted: 11/23/2005] [Indexed: 11/20/2022]
Abstract
Information about the mechanisms of meiotic arrest and resumption of meiosis in feline oocytes is still limited. The aim of this study was to investigate the effect of the presence of gonadotropins during IVM, on meiotic progression in relation to the status of gap junction mediated communications between oocyte and cumulus cells, to the cAMP intracellular content, and to the intra-oocyte concentration of glutathione (GSH) in feline oocytes. Our results indicated that about 50% of cumulus-oocyte complexes (COCs) showed functionally open communications at the time of collection, while the remainder were partially or totally closed. After 3h of culture, the percentage of COCs with functional gap junctions was significantly greater in the group matured in the presence of gonadotropins than in those matured without them, where an interruption of communications was observed. Moreover, this precocious uncoupling was associated with a moderate increase of cAMP concentration in the oocyte, lower than in the group exposed to gonadotropins. Intra-oocyte glutathione levels decreased significantly after 24h of IVM, whether gonadotropins were present or absent during the culturing process. The presence of thiol compounds in the IVM medium induced an intra-oocyte GSH concentration significantly higher than that found in oocytes cultured without these compounds, and similar to the GSH content of immature oocytes. Moreover, the intracellular GSH concentration increased as meiosis progressed. The present study suggests that in feline oocytes, gonadotropins affect the dynamic changes in communications between oocyte and cumulus cells during IVM. However, the intracellular concentration of GSH is not influenced by the gonadotropin stimulation. Moreover, the presence of gonadotropins and thiol compounds results in an increase of GSH levels along with meiotic progression of the oocytes.
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Affiliation(s)
- Gaia C Luvoni
- Department of Veterinary Clinical Sciences, Obstetrics and Gynaecology, University of Milan, Italy.
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40
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Gasparrini B, Boccia L, Marchandise J, Di Palo R, George F, Donnay I, Zicarelli L. Enrichment of in vitro maturation medium for buffalo (Bubalus bubalis) oocytes with thiol compounds: Effects of cystine on glutathione synthesis and embryo development. Theriogenology 2006; 65:275-87. [PMID: 15979699 DOI: 10.1016/j.theriogenology.2005.05.036] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2005] [Revised: 04/21/2005] [Accepted: 05/10/2005] [Indexed: 11/25/2022]
Abstract
The purpose of this study was to evaluate whether enriching the oocyte in vitro maturation medium with cystine, in the presence of cysteamine, would improve the in vitro embryo production efficiency in buffalo by further increasing the GSH reservoir created by the oocyte during maturation. Cumulus-oocytes complexes were matured in vitro in TCM 199 + 10% FCS, 0.5 microg/ml FSH, 5 microg/ml LH and 1 microg/ml 17beta-estradiol in the absence or presence of cysteamine (50 microM), with or without 0.3mM cystine. In Experiment 1, glutathione content was measured by high-performance liquid chromatography and fluorimetric analysis in representative samples of oocytes matured in the four different experimental conditions. In Experiment 2, oocytes were fixed and stained to assess nuclear maturation and normal pronuclear development following IVM and IVF respectively. In Experiment 3, mature oocytes were in vitro fertilized and cultured to assess development to blastocysts. In all supplemented groups the intracytoplasmic GSH concentration was significantly higher than the control, with the highest GSH levels in oocytes matured in the presence of both thiol compounds (3.6, 4.7, 5.4 and 6.9 picomol/oocyte in the control, cysteamine, cystine and cystine+cysteamine groups, respectively; P < 0.05). Cystine supplementation of IVM medium, both in the presence or absence of cysteamine, significantly increased the proportion of oocytes showing two normal synchronous pronuclei following fertilization. In all supplemented groups, cleavage rate was significantly improved compared to the control (55, 66.1, 73.5 and 78.4% in the control, cysteamine, cystine and cystine+cysteamine groups, respectively; P < 0.05). Similarly, blastocyst yield was also increased in the three enriched groups compared to the control (17.1, 23.8, 29.3, 30.9% in the control, cysteamine, cystine and cystine+cysteamine groups, respectively; P < 0.05). Overall, the addition of cystine to a cysteamine-enriched medium resulted in a significant increase of cleavage rate and transferable embryo yield compared to the medium supplemented with only cysteamine.
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Affiliation(s)
- Bianca Gasparrini
- DISCIZIA, Faculty of Veterinary Medicine, Federico II University, Via Delpino 1, 80137 Naples, Italy.
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Locatelli Y, Cognié Y, Vallet JC, Baril G, Verdier M, Poulin N, Legendre X, Mermillod P. Successful use of oviduct epithelial cell coculture for in vitro production of viable red deer (Cervus elaphus) embryos. Theriogenology 2005; 64:1729-39. [PMID: 15890398 DOI: 10.1016/j.theriogenology.2005.04.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2004] [Revised: 04/12/2005] [Accepted: 04/12/2005] [Indexed: 10/25/2022]
Abstract
Techniques for in vitro production (IVP) of viable embryos have been thoroughly developed in several domestic species in view to improve breeding efficiency. When applied to wild life, these techniques may also help the maintenance of biodiversity through amplification of sparse animals offspring and facilitation of genetic material exchange. During the successive steps of IVP, i.e. oocyte in vitro maturation (IVM), fertilization (IVF) and early embryo development (IVD) to the blastocyst stage, gametes and embryos are faced with unusual environment, including oxidative stress, known to be detrimental to their survival. In the present study, starting from methods developed in domestic species, we have adapted IVP to produce viable red deer embryos. In a first experiment, cumulus cells were removed from in vitro matured oocytes either before or after IVF. The presence of cumulus cells during IVF did not affect final cleavage or development rates. In a second experiment, in vitro matured oocytes were fertilized in the presence of cumulus cells and cultured in SOFaaBSA medium alone or in the presence of ovine oviduct epithelial cell (oOEC) monolayer. Whereas, oviduct cells did not improve the cleavage rate, they significantly increased the rate of embryos reaching the blastocyst stage (from 3 to 25% of total oocytes). Ten blastocysts from oOEC coculture were transferred after freezing and thawing to five recipient hinds and gave rise to three pregnancies. The three pregnant hinds gave birth to three live and normal calves.
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Affiliation(s)
- Y Locatelli
- INRA, Unité de Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France
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42
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Luciano AM, Lodde V, Beretta MS, Colleoni S, Lauria A, Modina S. Developmental capability of denuded bovine oocyte in a co-culture system with intact cumulus-oocyte complexes: role of cumulus cells, cyclic adenosine 3',5'-monophosphate, and glutathione. Mol Reprod Dev 2005; 71:389-97. [PMID: 15803456 DOI: 10.1002/mrd.20304] [Citation(s) in RCA: 120] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Cumulus oophorus cells have been implicated in the regulation of female gamete development, meiotic maturation, and oocyte-sperm interaction. Nevertheless, the specific role of cumulus cells (CCs) during the final stages of oocyte maturation and fertilization processes still remains unclear. Several studies have been conducted in order to clarify the role of follicular cells using culture systems where denuded oocytes (DOs) were co-cultured with isolated CCs, or in the presence of conditioned medium. However, those attempts were ineffective and the initial oocyte competence to become a blastocyst after fertilization was only partially restored. Aim of the present study was to analyze the effect of the interactions between somatic cells and the female gamete on denuded oocyte developmental capability using a system of culture where CCs were present as dispersed CCs or as intact cumulus-oocyte complexes (COCs) in co-culture with oocytes freed of CC investment immediately after isolation from the ovary. Moreover, we analyzed the specific role of cyclic adenosine 3'-5' monophosphate (cAMP) and glutathione (GSH) during FSH-stimulated maturation of denuded oocyte co-cultured with intact COCs. Our data confirm that denuded oocyte has a scarce developmental capability, and the presence of dispersed CCs during in vitro maturation (IVM) does not improve their developmental competence. On the contrary, the co-presence of intact COCs during denuded oocyte IVM partially restores their developmental capability. The absence of CCs investment causes a drop of cAMP content in DOs at the beginning of IVM and the addition of a cAMP analog in the culture medium does not restore the initial oocyte developmental competence. The relative GSH content of denuded oocyte matured in presence of intact COCs is consistent with the partial recovery of their developmental capability. However, the complete restoration of a full embryonic developmental potential is achieved only when DOs are co-cultured with intact COCs during both IVM and in vitro fertilization (IVF). Our results suggest that the direct interaction between oocyte and CCs is not essential during IVM and IVF of denuded oocyte. We hypothesize that putative diffusible factor(s), produced by CCs and/or by the crosstalk between oocyte and CCs in the intact complex, could play a key role in the acquisition of developmental competence of the denuded female gamete.
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Affiliation(s)
- Alberto M Luciano
- Institute of Anatomy of Domestic Animals, Histology and Embryology, Faculty of Veterinary Medicine, University of Milan, Italy.
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43
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Chen N, Liow SL, Yip WY, Tan LG, Ng SC. Influence of cysteamine supplementation and culture in portable dry-incubator on the in vitro maturation, fertilization and subsequent development of mouse oocytes. Theriogenology 2005; 63:2300-10. [PMID: 15826691 DOI: 10.1016/j.theriogenology.2004.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2004] [Accepted: 10/09/2004] [Indexed: 10/26/2022]
Abstract
The need to transport oocytes and embryos between two laboratories have prompted us to evaluate the effects of in vitro maturation of immature mouse oocytes in a CO2-deficient dry heat portable incubator and subsequent in vitro development of these fertilized mouse oocytes in a standard CO2 incubator. In addition, the effects of cysteamine supplementation on maturation rate and embryonic development during in vitro maturation (IVM) and culture of embryos in the portable incubator were also investigated. Germinal vesicle stage mouse oocytes, recovered at 40-h post-FSH from 6- to 8-week-old C57BL/6xCBA F1 healthy female mice, were matured in vitro in a modified TCM-199 supplemented with or without 100 microM cysteamine in a standard incubator (5% CO2; 37 degrees C) or cultured in a CO2-deficient dry heat portable incubator for 5 h at 37 degrees C and thereafter transferred to a standard incubator for further culture. The addition of cysteamine in the IVM medium significantly improved maturation rates of the GV mouse oocytes to metaphase II stage. However, cysteamine supplementation in the culture medium did not significantly improve fertilization and blastocyst formation rates of IVM and ovulated oocytes, and in vivo-derived zygotes. Culture conditions in a CO2-deficient dry heat portable incubator did not adversely affect the developmental competence of in vivo-derived zygotes and in vitro matured mouse oocytes after IVF or parthenogenetic activation. Cysteamine supplement in the IVM medium could enhance nuclear maturation of these immature oocytes during shipment.
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Affiliation(s)
- Naiqing Chen
- Embryonics International, Gleneagles Hospital, Annexe Block, #01-38, 6A Napier Road, Singapore 258500, Singapore
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Mertens MJ, López-Bejar M, Paramio MT. Intracytoplasmic Glutathione Levels in Heifer Oocytes Cultured in different Maturation Media and its Effect on Embryo Development. Reprod Domest Anim 2005; 40:126-30. [PMID: 15819961 DOI: 10.1111/j.1439-0531.2005.00566.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present study was carried out to study the effect of different maturation media on embryo development of heifer oocytes and on their glutathione (GSH) synthesis during in vitro maturation (IVM). Immature heifer oocytes were matured in parallel in one of four maturation media: (i) Tissue Culture Medium (TCM)-199 supplemented with 10 ng/ml of epidermal growth factor (EGF); (i) TCM-199 supplemented with 10 ng/ml of EGF plus 1 microg/ml of FSH; (iii) TCM-199 supplemented with 10% of foetal bovine serum (FBS) and (iv) TCM-199 supplemented with 10% of FBS plus 1 microg/ml of FSH. Cow oocytes were used as control and were matured in TCM-199 supplemented with 10 ng/ml of EGF. No differences were observed in blastocyst rate among the different heifer oocyte groups (8.8, 7.5. 8.4 and 6.8%, respectively) however, the percentage of blastocysts obtained from cow oocytes was significantly higher (30%; p < 0.01) than those obtained from heifer oocytes. De novo GSH synthesis during oocyte maturation of heifer and cow oocytes was detected. No significant differences in intracytoplasmic GSH levels were observed among the experimental heifer oocyte groups or between heifer and cow oocytes both before and after IVM. In conclusion, the blastocyst yield obtained from heifer oocytes was lower than that from cow oocytes and this fact could not be explained by significant differences in intracytoplasmic GSH contents of oocytes before or after IVM.
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Affiliation(s)
- M J Mertens
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
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Donnay I, Faerge I, Grøndahl C, Verhaeghe B, Sayoud H, Ponderato N, Galli C, Lazzari G. Effect of prematuration, meiosis activating sterol and enriched maturation medium on the nuclear maturation and competence to development of calf oocytes. Theriogenology 2004; 62:1093-107. [PMID: 15289049 DOI: 10.1016/j.theriogenology.2003.12.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2003] [Revised: 12/16/2003] [Accepted: 12/22/2003] [Indexed: 11/18/2022]
Abstract
New strategies were proposed to improve the developmental competence of calf oocytes through in vitro technologies. Cumulus-oocyte complexes were first prematured for 24 h in the presence of meiosis inhibitors. Both Roscovitine alone (50 microM) or in combination with Butyrolactone-I (12.5 microM Rosco+6.25 microM BL-I) prevented the progression of meiosis. Their effect on nuclear maturation was reversible after a further 17 or 24 h maturation step. However, a dramatic decrease in embryo development was observed after fertilization (abattoir oocytes: 4-9% blastocyst rate versus 14-17% for control embryos). Similar results were obtained with oocytes collected by Ovum Pick Up from living donors. No pregnancy was obtained after single transfer of two blastocysts obtained from prematured oocytes (0/2 versus 4/12 for control embryos). Adding low concentrations (1, 3 or 10 microM) of follicular fluid-meiosis activating sterol (FF-MAS) during the maturation step had a beneficial effect on nuclear maturation (73-86% metaphase II versus 58% for control oocytes). However, subsequent embryo development was not improved. Enriching the maturation medium, namely with hormones, growth factors and precursors of glutathione, induced a sixfold increase in glutathione in the oocyte and had a beneficial effect on embryo development (38% increase in blastocyst rate). In conclusion, in opposition to the results reported with adult oocytes, prematuring calf oocytes had a negative impact on their developmental potential. Although FF-MAS improved nuclear maturation, its addition in the maturation medium did not increase embryo development. However, enriching the maturation medium had a positive effect on embryo development, indicating that cytoplasmic maturation was improved.
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Affiliation(s)
- Isabelle Donnay
- Université Catholique de Louvain, Institut des Sciences de la Vie, Unité des Sciences Vétérinaires, Place Croix du Sud 5 Bte 10, B-1348 Louvain-la-Neuve, Belgium.
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