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Leal GR, Oliveira TDA, de Paula Guimarães MP, Correia LFL, Vasconcelos EM, Souza-Fabjan JMG. Lipid modulation during IVM increases the metabolism and improves the cryosurvival of cat oocytes. Theriogenology 2024; 214:33-42. [PMID: 37839095 DOI: 10.1016/j.theriogenology.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/15/2023] [Accepted: 10/03/2023] [Indexed: 10/17/2023]
Abstract
This study investigated the time course of lipid accumulation during IVM and assessed the role of lipid modulators added during IVM on lipid content, nuclear maturation, oxidative stress, mitochondrial activity, gene expression, and cryosurvival of cat oocytes. First, the lipid content of immature COCs was compared to those subjected to different IVM duration times (24, 28, and 32 h). Then, the lipid content was investigated after the use of different lipid modulators [conjugated linoleic acid (CLA), forskolin (FSK), l-carnitine (LC)]. Subsequently, both the CONTROL group and MIX 18 (CLA+FSK+LC) were compared regarding nuclear maturation, mitochondrial activity, reactive oxygen 19 species (ROS), and glutathione (GSH) levels, to the expression of SDHA, GDF9, BMP15, ZAR-1, 20 PRDX1, SIRT1, and SIRT3 genes (normalized by ACTB and YWHAZ genes); and to vitrification and 21 post-warming viability assessment. When not using any lipid modulator, an increase (P < 0.05) in lipid content could be observed after 28 h of IVM. The MIX group showed the greatest (P < 0.05) reduction in oocyte lipid content after 28 h of IVM. No difference (P > 0.05) was observed in the MII rate in the CONTROL (45%) and MIX (41%) groups and in mitochondrial activity ((1.00 ± 0.35 A U vs 1.19 ± 0.14 A U). Although ROS and GSH levels were higher (P < 0.05) in MIX than in CONTROL, the redox balance (ROS/GSH) was greater (P < 0.05) in the latter (C:1.00 ± 0.20b vs M:0.26 ± 0.06 a A.U). The GDF9, HSP70, PRDX1, and SIRT1 transcripts were downregulated (P < 0.05) in MIX-oocytes, compared to the CONTROL. After vitrification, MIX (74%) presented a higher (P < 0.05) viability compared to control (53%). In conclusion, MIX can reduce the total lipid content and improve viability after cryopreservation, however, it seems to affect the oocyte metabolism in a way that still needs to be better understood in the cat biological model.
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Affiliation(s)
- Gabriela Ramos Leal
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária, Vital Brazil Filho St., 64, 24230-340, Niterói, Rio de Janeiro, Brazil.
| | - Thais de Almeida Oliveira
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária, Vital Brazil Filho St., 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Mariana Pedrosa de Paula Guimarães
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária, Vital Brazil Filho St., 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Lucas Francisco Leodido Correia
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária, Vital Brazil Filho St., 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Erlandia Márcia Vasconcelos
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária, Vital Brazil Filho St., 64, 24230-340, Niterói, Rio de Janeiro, Brazil
| | - Joanna Maria Gonçalves Souza-Fabjan
- Universidade Federal Fluminense (UFF), Faculdade de Medicina Veterinária, Vital Brazil Filho St., 64, 24230-340, Niterói, Rio de Janeiro, Brazil.
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Raza SHA, Abd El-Aziz AH, Abdelnour SA, Easa AA, Alagawany M, Farag MR, Al-Mutary MG, Elfadadny A, Khan R, Quan G, Cheng G, Zan L. The role of forskolin as a lipolytic stimulator during in vitro oocyte maturation and the in vitro embryo production of livestock. Reprod Domest Anim 2021; 56:1486-1496. [PMID: 34592022 DOI: 10.1111/rda.14021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/28/2021] [Indexed: 11/28/2022]
Abstract
Cryopreservation is a modern technique which assists in the preservation of genetic material from oocytes and embryos for a long time. However, elevated vulnerability to cryopreservation due to the large accumulation of intracellular lipids within oocytes or embryos avoids success of this method. These lipids remain the main crucial factor limiting survival rates of oocytes and embryos after thawing. Lipid ingathering in the oocyte cytoplasm augments lipid peroxidation (LPO) and oxidative stress increases the apoptosis process, declines the viability after thawing, declines cytoskeleton actin filament injuries, lowers the blastocyst rates and reduces cryotolerance in the early stages of embryo development. There have been several attempts to reduce the ingathering of intracellular lipids in oocytes or embryos during the cryopreservation process, in that way enhancing the competence of cryopreserved oocytes or embryos and increasing their viability. One of the most applied agents for chemical delipidation is forskolin. Forskolin exhibited a possible part in improving the oocytes cryopreservation through stimulating cyclic adenosine monophosphate (cAMP) production. The main purpose of cAMP modulation is to provide energy to sustain the mammalian oocytes´ meiotic arrest. The purpose of the existing article is to assess and offer more evidence concerning the forskolin utilization as a modulator of cAMP during the cryopreservation of oocytes and its influence on meiosis completion and the reorganization of cytoplasm, which are prerequisites for the development of oocytes in addition to the contribution to fertilization and subsequently, the development of embryos.
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Affiliation(s)
- Sayed Haidar Abbas Raza
- College of Animal Science and Technology, Northwest A&F University, Yangling, China.,National Beef Cattle Improvement Center, Northwest A&F University, Yangling, China
| | - Ayman H Abd El-Aziz
- Animal Husbandry and Animal Wealth Development Department, Faculty of Veterinary Medicine, Daman Hour University, Damanhour, Egypt
| | - Sameh A Abdelnour
- Animal Production Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Ahmed A Easa
- Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour, Egypt
| | - Mahmoud Alagawany
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mayada R Farag
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mohsen G Al-Mutary
- Department of Basic Sciences, College of Education, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ahmed Elfadadny
- Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Rajwali Khan
- Department of Livestock Management, Breeding and Genetics, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Guobo Quan
- Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Gong Cheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China.,National Beef Cattle Improvement Center, Northwest A&F University, Yangling, China
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Metcalf ES, Masterson KR, Battaglia D, Thompson JG, Foss R, Beck R, Cook NL, O Leary T. Conditions to optimise the developmental competence of immature equine oocytes. Reprod Fertil Dev 2021; 32:1012-1021. [PMID: 32693913 DOI: 10.1071/rd19249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 06/11/2020] [Indexed: 12/24/2022] Open
Abstract
Optimising the developmental potential of immature equine oocytes and invitro-produced (IVP) embryos was explored through modifications of established media and holding temperature. In Experiment 1, delaying spontaneous resumption of meiosis through the process of simulated physiological oocyte maturation with the addition of the adenylate cyclase activator forskolin (50µM) and the phosphodiesterase inhibitor 3-isobutyl-1-methylxanthine (100µM) to overnight holding medium before maturation improved blastocyst production (P<0.05). In Experiment 2, the blastocyst production rate was increased significantly when cumulin (100ng mL-1) was added to the overnight holding or culture media (P<0.05). In Experiment 3, immature oocytes held overnight at 16°C before maturation had improved developmental competence than those held at 20°C and 5°C (P<0.05). There was no difference between maturation rates, but blastocyst formation per cleaved oocyte was significantly greater in oocytes held overnight at 16°C than at 20°C or 5°C. Furthermore, blastocyst formation per recovered oocyte and per fertilised oocyte was greater when oocytes were held before maturation at 16°C than at 5°C (P<0.05). In Experiment 4, the addition of sodium ascorbate (AC; 50µg mL-1) to the maturation and/or culture media of oocytes and IVP embryos did not improve blastocyst production, but did appear to lower cleavage rates compared with oocytes and embryos cultured without AC.
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Affiliation(s)
- Elizabeth S Metcalf
- Honahlee PC, 14005 SW Tooze Road, Sherwood, OR 97140, USA; and Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA; and Corresponding author.
| | - Keith R Masterson
- Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA
| | - David Battaglia
- Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA
| | - Jeremy G Thompson
- School of Medicine, The University of Adelaide, Medical School, South Adelaide, SA 5005, Australia
| | - Robert Foss
- Equine Medical Services, 5851E Deer Park Road, Columbia, MO 65201, USA
| | - Richard Beck
- In Foal, Inc., 39185 Diamond Valley Road, Hemet, CA 92543, USA
| | - Nancy L Cook
- Advanced Equine Reproduction, 1145 Arroyo Mesa, Solvang, CA 93463, USA
| | - Thomas O Leary
- Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA
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Wu XC, Han Z, Hao X, Zhao YT, Zhou CJ, Wen X, Liang CG. Combined use of dbcAMP and IBMX minimizes the damage induced by a long-term artificial meiotic arrest in mouse germinal vesicle oocytes. Mol Reprod Dev 2020; 87:262-273. [PMID: 31943463 DOI: 10.1002/mrd.23315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 12/29/2019] [Indexed: 11/11/2022]
Abstract
Phosphodiesterase (PDE)-mediated reduction of cyclic adenosine monophosphate (cAMP) activity can initiate germinal vesicle (GV) breakdown in mammalian oocytes. It is crucial to maintain oocytes at the GV stage for a long period to analyze meiotic resumption in vitro. Meiotic resumption can be reversibly inhibited in isolated oocytes by cAMP modulator forskolin, cAMP analog dibutyryl cAMP (dbcAMP), or PDE inhibitors, milrinone (Mil), Cilostazol (CLZ), and 3-isobutyl-1-methylxanthine (IBMX). However, these chemicals negatively affect oocyte development and maturation when used independently. Here, we used ICR mice to develop a model that could maintain GV-stage arrest with minimal toxic effects on subsequent oocyte and embryonic development. We identified optimal concentrations of forskolin, dbcAMP, Mil, CLZ, IBMX, and their combinations for inhibiting oocyte meiotic resumption. Adverse effects were assessed according to subsequent development potential, including meiotic resumption after washout, first polar body extrusion, early apoptosis, double-strand DNA breaks, mitochondrial distribution, adenosine triphosphate levels, and embryonic development. Incubation with a combination of 50.0 μM dbcAMP and 10.0 μM IBMX efficiently inhibited meiotic resumption in GV-stage oocytes, with low toxicity on subsequent oocyte maturation and embryonic development. This work proposes a novel method with reduced toxicity to effectively arrest and maintain mouse oocytes at the GV stage.
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Affiliation(s)
- Xue-Chen Wu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Zhe Han
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Xin Hao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Yi-Tong Zhao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Cheng-Jie Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Xin Wen
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Cheng-Guang Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
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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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