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Telfer EE, Grosbois J, Odey YL, Rosario R, Anderson RA. Making a good egg: human oocyte health, aging, and in vitro development. Physiol Rev 2023; 103:2623-2677. [PMID: 37171807 PMCID: PMC10625843 DOI: 10.1152/physrev.00032.2022] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/03/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023] Open
Abstract
Mammalian eggs (oocytes) are formed during fetal life and establish associations with somatic cells to form primordial follicles that create a store of germ cells (the primordial pool). The size of this pool is influenced by key events during the formation of germ cells and by factors that influence the subsequent activation of follicle growth. These regulatory pathways must ensure that the reserve of oocytes within primordial follicles in humans lasts for up to 50 years, yet only approximately 0.1% will ever be ovulated with the rest undergoing degeneration. This review outlines the mechanisms and regulatory pathways that govern the processes of oocyte and follicle formation and later growth, within the ovarian stroma, through to ovulation with particular reference to human oocytes/follicles. In addition, the effects of aging on female reproductive capacity through changes in oocyte number and quality are emphasized, with both the cellular mechanisms and clinical implications discussed. Finally, the details of current developments in culture systems that support all stages of follicle growth to generate mature oocytes in vitro and emerging prospects for making new oocytes from stem cells are outlined.
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Affiliation(s)
- Evelyn E Telfer
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Johanne Grosbois
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Yvonne L Odey
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Roseanne Rosario
- Centre for Discovery Brain Sciences, Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Richard A Anderson
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
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Menezes VG, Monte APOD, de Sousa Barberino R, Gouveia BB, Lins TLBG, Macedo TJSE, Júnior JLDO, de Almeida Araújo C, Campos FS, Filho EFDO, Batista AM, Queiroz MAÁ, Araújo GGLD, Matos MHTD, Wischral A. Effect of reduced water intake on ovarian reserve, leptin immunoexpression and impact of leptin on the in vitro culture of sheep secondary follicles. Anim Reprod Sci 2023; 255:107278. [PMID: 37390679 DOI: 10.1016/j.anireprosci.2023.107278] [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: 04/03/2023] [Revised: 05/22/2023] [Accepted: 06/07/2023] [Indexed: 07/02/2023]
Abstract
This study evaluated the effect of reduced water intake on survival, apoptosis and immunoexpression of leptin in sheep preantral follicles, activation of primordial follicles, serum levels of leptin, estradiol (E2) and progesterone (P4), and in vitro maturation (IVM) of oocytes antral follicles, as well evaluated the effects of leptin on in vitro culture of secondary follicles isolated these animals. Ewes (n = 32) were divided into four groups: water ad libitum (Control - 100%), 80%; 60% and 40% of ad libitum intake. Blood was collected to determine, leptin, E2 and P4, before and after experiment. After the slaughter, ovarian cortex was used to histological and immunohistochemistry analysis and oocytes IVM. Moreover, isolated secondary follicles were cultured in vitro for 12 days in control medium (α-MEM+) or α-MEM+ with 10 or 25 ng/mL leptin. The reduction of water intake caused a linear decreasing effect on the percentages of normal preantral follicles, especially of primordial (P < 0.05), increased the apoptosis (P < 0.05) and decreased leptin expression in preantral follicles. The treatment with 60% of water intake showed greater total growth rate of isolated secondary follicles cultured with 25 ng/L leptin (P < 0.05), compared to those cultured in α-MEM+ . In conclusion, reduced water intake impaired the number of normal sheep preantral follicles, especially of primordial follicles, increased apoptosis and decreased leptin expression in preantral follicles. Moreover, secondary follicles from of ewes that receive 60% water intake increased follicular growth after in vitro culture with 25 ng/mL leptin.
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Affiliation(s)
- Vanúzia Gonçalves Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil.
| | - Alane Pains Oliveira do Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Ricássio de Sousa Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Bruna Bortoloni Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Thae Lane Barbosa Gama Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Taís Jobard Silva E Macedo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | | | - Cleyton de Almeida Araújo
- Postgraduate Program in Animal Science and Pastures, Universidade Federal do Agreste Pernambucano, Garanhuns, PE, Brazil
| | - Fleming Sena Campos
- Postgraduate Program in Animal Science and Pastures, Universidade Federal do Agreste Pernambucano, Garanhuns, PE, Brazil; Departamento de Ciência Animal, Centro de Ciências de Chapadinha - CCCh, Universidade Federal do Maranhão - UFMA, Chapadina, MA, 65500-000 Brazil
| | - Emanuel Felipe de Oliveira Filho
- Laboratory of Deficiency and Metabolic Diseases and Poisoning of Ruminants, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - André Mariano Batista
- Laboratory of Biotechnics Applied to Reproduction, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Mário Adriano Ávila Queiroz
- Laboratory of Bromatology and Animal Nutrition, Universidade Federal Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | | | - Maria Helena Tavares de Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Aurea Wischral
- Laboratory of Biotechnics Applied to Reproduction, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
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Grosbois J, Bailie EC, Kelsey TW, Anderson RA, Telfer EE. Spatio-temporal remodelling of the composition and architecture of the human ovarian cortical extracellular matrix during in vitro culture. Hum Reprod 2023; 38:444-458. [PMID: 36721914 PMCID: PMC9977129 DOI: 10.1093/humrep/dead008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/29/2022] [Indexed: 02/02/2023] Open
Abstract
STUDY QUESTION How does in vitro culture alter the human ovarian cortical extracellular matrix (ECM) network structure? SUMMARY ANSWER The ECM composition and architecture vary in the different layers of the ovarian cortex and are remodelled during in vitro culture. WHAT IS KNOWN ALREADY The ovarian ECM is the scaffold within which follicles and stromal cells are organized. Its composition and structural properties constantly evolve to accommodate follicle development and expansion. Tissue preparation for culture of primordial follicles within the native ECM involves mechanical loosening; this induces undefined modifications in the ECM network and alters cell-cell contact, leading to spontaneous follicle activation. STUDY DESIGN, SIZE, DURATION Fresh ovarian cortical biopsies were obtained from six women aged 28-38 years (mean ± SD: 32.7 ± 4.1 years) at elective caesarean section. Biopsies were cut into fragments of ∼4 × 1 × 1 mm and cultured for 0, 2, 4, or 6 days (D). PARTICIPANTS/MATERIALS, SETTING, METHODS Primordial follicle activation, stromal cell density, and ECM-related protein (collagen, elastin, fibronectin, laminin) positive area in the entire cortex were quantified at each time point using histological and immunohistological analysis. Collagen and elastin content, collagen fibre characteristics, and follicle distribution within the tissue were further quantified within each layer of the human ovarian cortex, namely the outer cortex, the mid-cortex, and the cortex-medulla junction regions. MAIN RESULTS AND THE ROLE OF CHANCE Primordial follicle activation occurred concomitantly with a loosening of the ovarian cortex during culture, characterized by an early decrease in stromal cell density from 3.6 ± 0.2 × 106 at day 0 (D0) to 2.8 ± 0.1 × 106 cells/mm3 at D2 (P = 0.033) and a dynamic remodelling of the ECM. Notably, collagen content gradually fell from 55.5 ± 1.7% positive area at D0 to 42.3 ± 1.1% at D6 (P = 0.001), while elastin increased from 1.1 ± 0.2% at D0 to 1.9 ± 0.1% at D6 (P = 0.001). Fibronectin and laminin content remained stable. Moreover, collagen and elastin distribution were uneven throughout the cortex and during culture. Analysis at the sub-region level showed that collagen deposition was maximal in the outer cortex and the lowest in the mid-cortex (69.4 ± 1.2% versus 53.8 ± 0.8% positive area, respectively, P < 0.0001), and cortical collagen staining overall decreased from D0 to D2 (65.2 ± 2.4% versus 60.6 ± 1.8%, P = 0.033) then stabilized. Elastin showed the converse distribution, being most concentrated at the cortex-medulla junction (3.7 ± 0.6% versus 0.9 ± 0.2% in the outer cortex, P < 0.0001), and cortical elastin peaked at D6 compared to D0 (3.1 ± 0.5% versus 1.3 ± 0.2%, P < 0.0001). This was corroborated by a specific signature of the collagen fibre type across the cortex, indicating a distinct phenotype of the ovarian cortical ECM depending on region and culture period that might be responsible for the spatio-temporal and developmental pattern of follicular distribution observed within the cortex. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Ovarian cortical biopsies were obtained from women undergoing caesarean sections. As such, the data obtained may not accurately reflect the ECM distribution and structure of non-pregnant women. WIDER IMPLICATIONS OF THE FINDINGS Clarifying the composition and architecture signature of the human ovarian cortical ECM provides a foundation for further exploration of ovarian microenvironments. It is also critical for understanding the ECM-follicle interactions regulating follicle quiescence and awakening, leading to improvements in both in vitro activation and in vitro growth techniques. STUDY FUNDING/COMPETING INTEREST(S) Medical Research Council grant MR/R003246/1 and Wellcome Trust Collaborative Award in Science: 215625/Z/19/Z. The authors have no conflicts to declare. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Johanne Grosbois
- Institute of Cell Biology, Hugh Robson Building, University of Edinburgh, Edinburgh, UK
| | - Emily C Bailie
- Institute of Cell Biology, Hugh Robson Building, University of Edinburgh, Edinburgh, UK
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Tom W Kelsey
- School of Computer Science, University of St Andrews, St Andrews, UK
| | - Richard A Anderson
- MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Evelyn E Telfer
- Institute of Cell Biology, Hugh Robson Building, University of Edinburgh, Edinburgh, UK
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Transcriptional downregulation of ABC transporters is related to follicular degeneration after vitrification and in vitro culture of ovine ovarian tissue. Theriogenology 2022; 177:127-132. [PMID: 34700069 DOI: 10.1016/j.theriogenology.2021.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 08/22/2021] [Accepted: 10/16/2021] [Indexed: 12/19/2022]
Abstract
ATP-binding cassette (ABC) transporters perform multiple functions in reproductive tissues. During ovarian tissue vitrification, the plasma membrane has important functions in the influx or efflux of water, and substances such as cryoprotectants and channel proteins that are required in this process. Thus, the present study aimed to verify the relative abundance of mRNA transcript of ABC transporters ABCB1, ABCG2, and MRP2 after vitrification and in vitro culture (IVC) of ovine ovarian tissue. For this study, the ovarian cortex fragments were proportioned into four groups as fresh control, vitrified control, fresh culture, and vitrified culture groups. After vitrification and in vitro culture, the ovarian tissue was evaluated using morphological procedures. Further, relative abundance of ABCB1, ABCG2, and MRP2 transporter mRNA transcripts in the ovarian cortex subjected to aforementioned treatment conditions were evaluated using qPCR. Our results showed a negative association between degenerated follicles and mRNA transcript abundances of ABCB1 and ABCG2. In addition, the percentage of growing follicles in the ovine ovarian cortex after vitrification was similar to that of the fresh control tissue without in vitro culture. The in vitro culture of fresh and vitrified tissue however, showed a significant decrease in the percentage of growing follicles. To the best of our knowledge, we believe that our data for the first time has studied the relative abundances of ABCB1 and ABCG2 mRNA transcripts in the ovine ovarian cortex. In addition, alterations of these protein channels may be indicative of a deleterious effect of osmotic stress on follicular survival during vitrification. Furthermore, these effects were detectable only after the IVC of the ovarian tissues. Nonetheless, further studies are required to investigate the functions of ABC transporters in ovine folliculogenesis, especially after in vitro culture of ovarian tissue.
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Silva GAL, Araújo LB, Silva LCR, Gouveia BB, Barberino RS, Lins TLBG, Monte APO, Macedo TJS, Santos JMS, Menezes VG, Silva RLS, Matos MHT. Gallic acid promotes the in vitro development of sheep secondary isolated follicles involving the phosphatidylinositol 3-kinase pathway. Anim Reprod Sci 2021; 230:106767. [PMID: 34030069 DOI: 10.1016/j.anireprosci.2021.106767] [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: 11/20/2020] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
This study was conducted to evaluate the effect of addition of gallic acid as the single antioxidant to the base medium for in vitro culture of sheep secondary follicles and if the phosphatidylinositol 3-kinase (PI3K) pathway is involved in the action of gallic acid. Secondary follicles were isolated and cultured for 12 days in α-MEM supplemented with bovine serum albumin (BSA), insulin, glutamine, hypoxanthine, transferrin, selenium, and ascorbic acid (control medium: α-MEM+) or in α-MEM supplemented with BSA, insulin, glutamine, hypoxanthine and different concentrations of gallic acid (25, 50 or 100 μM), thus replacing transferrin, selenium and ascorbic acid in the medium. Follicle morphology, glutathione (GSH), and mitochondrial activity, and meiotic resumption were evaluated. Furthermore, inhibition of PI3K pathway was performed by pretreatment with LY294002. After 12 days of culture, the follicle survival in a medium containing 100 μM gallic acid was similar (P > 0.05) to α-MEM+ and greater (P < 0.05) compared with other gallic acid concentrations. Antrum formation, follicle diameter, GSH, and mitochondrial activity, and meiotic resumption, however, were greater (P < 0.05) when 100 μM gallic acid was included in the α-MEM+ culture medium compared with the control medium. Furthermore, LY294002 inhibited (P < 0.05) follicle survival, development, and meiotic resumption stimulated by 100 μM gallic acid. In conclusion, concentration of 100 μM of gallic acid can be a substitute for transferrin, selenium, and ascorbic acid in the base medium during in vitro culture of sheep secondary follicles, inducing follicle development likely through the PI3K pathway.
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Affiliation(s)
- Gizele A L Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Luana B Araújo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Larissa C R Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Bruna B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Thae Lanne B G Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Alane P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Taís J S Macedo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Jamile M S Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Vanúzia G Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Regina L S Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil
| | - Maria Helena T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, 56300-990, Brazil.
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Leptin decreases apoptosis and promotes the activation of primordial follicles through the phosphatidylinositol-3-kinase/protein kinase B pathway in cultured ovine ovarian tissue. ZYGOTE 2021; 29:445-451. [PMID: 33906701 DOI: 10.1017/s0967199421000034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study evaluated the effects of leptin on primordial follicle survival and activation after in vitro culture of ovine ovarian tissue and if leptin acts through the phosphatidylinositol-3-kinase/protein kinase B (PI3K/Akt) pathway. Ovarian fragments were fixed for histology (fresh control) or cultured for 7 days in control medium (α-MEM+) alone or supplemented with leptin (1, 5, 10, 25 or 50 ng/ml). Follicle morphology, activation and apoptosis were analyzed. Next, the fragments were cultured in the medium that showed the best results in the absence or the presence of the PI3K inhibitor (LY294002), and immunohistostaining of p-Akt protein was assessed. After culture, the percentage of normal follicles decreased (P < 0.05) in all treatments compared with the fresh control. Moreover, control medium and 1 ng/ml leptin had similar (P > 0.05) percentages of normal follicles, which were significantly higher than those in other treatments. However, culture with 1 ng/ml leptin maintained apoptosis similarly (P > 0.05) to that of the fresh control and lower (P < 0.05) than that in α-MEM+. Leptin did not influence follicle activation (P > 0.05) compared with the control medium (α-MEM+). Culture in 1 ng/ml leptin with LY294002 decreased the normal follicles and increased apoptosis, inhibited follicle activation (P < 0.05), and reduced p-Akt immunostaining, compared with the medium containing 1 ng/ml leptin without PI3K inhibitor. In conclusion, leptin at 1 ng/ml reduces apoptosis and promotes the activation of primordial follicles compared with the fresh control after in vitro culture of ovine ovarian tissue possibly through the PI3K/Akt pathway.
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7
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Vo KCT, Kawamura K. In Vitro Activation Early Follicles: From the Basic Science to the Clinical Perspectives. Int J Mol Sci 2021; 22:ijms22073785. [PMID: 33917468 PMCID: PMC8038686 DOI: 10.3390/ijms22073785] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/29/2021] [Accepted: 04/03/2021] [Indexed: 12/16/2022] Open
Abstract
Development of early follicles, especially the activation of primordial follicles, is strictly modulated by a network of signaling pathways. Recent advance in ovarian physiology has been allowed the development of several therapies to improve reproductive outcomes by manipulating early folliculogenesis. Among these, in vitro activation (IVA) has been recently developed to extend the possibility of achieving genetically related offspring for patients with premature ovarian insufficiency and ovarian dysfunction. This method was established based on basic science studies of the intraovarian signaling pathways: the phosphoinositide 3-kinase (PI3K)/Akt and the Hippo signaling pathways. These two pathways were found to play crucial roles in folliculogenesis from the primordial follicle to the early antral follicle. Following the results of rodent experiments, IVA was implemented in clinical practice. There have been multiple recorded live births and ongoing pregnancies. Further investigations are essential to confirm the efficacy and safety of IVA before used widely in clinics. This review aimed to summarize the published literature on IVA and provide future perspectives for its improvement.
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Sousa RP, Duarte ABG, Pinto Y, Sá NAR, Alves BG, Cibin FWS, Silva GC, Carvalho CES, Argôlo Neto NM, Rodrigues APR, Silva CMG, Figueiredo JR, Carvalho MAM. In Vitro Activation and Development of Goat Preantral Follicles Enclosed in Ovarian Tissue Co-cultured with Mesenchymal Stem Cells. Reprod Sci 2021; 28:1709-1717. [PMID: 33721296 DOI: 10.1007/s43032-021-00540-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 03/09/2021] [Indexed: 11/26/2022]
Abstract
The development of culture systems capable of maintaining follicular growth since the preantral stage has been the target of investigations. Mesenchymal stem cells (MSC) present potential for use in a wide range of applications, including research aimed at preserving fertility. Therefore, this study investigated the use of caprine Wharton's Jelly Mesenchymal Stem Cells (WJMSC) on the survival and in vitro development of goat preantral follicles enclosed in ovarian fragments cultured for 1 or 7 days. Fragments of the ovarian cortex were immediately fixed (non-cultured control) or distributed in four treatments: ovarian tissue cultured in control medium (α-MEM+); ovarian tissue cultured in α-MEM+ supplemented with FBS (α-MEM+ + FBS); ovarian tissue co-cultured with stem cells in α-MEM+ (α-MEM+ + SC); and ovarian tissue co-cultured with stem cell in α-MEM+ + FBS (α-MEM+ + SC + FBS). The rates of cell proliferation, follicular survival, and activation, as well as follicular diameter, were evaluated. After 7 days, the treatment co-cultured with stem cells showed a higher (P < 0.05) percentage of morphologically normal preantral follicles compared to the other treatments, as well as a higher (P < 0.05) activation rate compared to cultured control. Moreover, the follicular diameter was higher (P < 0.05) in the treatment co-cultured with stem cells compared to co-cultured with stem cells plus FBS. This study demonstrates for the first time that in vitro co-culture of caprine WJMSC with preantral follicles enclosed in goat ovarian tissue improves activation and early follicular development.
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Affiliation(s)
- Renata P Sousa
- Integrated Nucleus of Morphology and Research with Stem Cells (NUPCelt), Federal University of Piauí, Teresina, PI, Brazil
| | - Ana Beatriz G Duarte
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Yago Pinto
- Laboratory of Manipulation of Oocytes enclosed in Ovarian Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Brazil
| | - Naiza A R Sá
- Laboratory of Manipulation of Oocytes enclosed in Ovarian Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Brazil
| | - Benner G Alves
- Laboratory of Biology of Reproduction, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Francielli W S Cibin
- Breeding Biotechnology Laboratory (Biotech), Federal University of Pampa, Uruguaiana, Brazil
| | - Gustavo C Silva
- Integrated Nucleus of Morphology and Research with Stem Cells (NUPCelt), Federal University of Piauí, Teresina, PI, Brazil
| | - Camila E S Carvalho
- Integrated Nucleus of Morphology and Research with Stem Cells (NUPCelt), Federal University of Piauí, Teresina, PI, Brazil
| | - Napoleão M Argôlo Neto
- Integrated Nucleus of Morphology and Research with Stem Cells (NUPCelt), Federal University of Piauí, Teresina, PI, Brazil
| | - Ana Paula R Rodrigues
- Laboratory of Manipulation of Oocytes enclosed in Ovarian Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Brazil
| | - Cleidson M G Silva
- Humid Tropics Research Institute, Federal University of Southern and Southeastern Pará, Xinguara, Brazil
| | - José R Figueiredo
- Laboratory of Manipulation of Oocytes enclosed in Ovarian Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Brazil
| | - Maria Acelina M Carvalho
- Integrated Nucleus of Morphology and Research with Stem Cells (NUPCelt), Federal University of Piauí, Teresina, PI, Brazil.
- Department of Veterinary Morphophysiology, Federal University of Piauí, Rua Dirce de Oliveira, 3397, Bairro Ininga, Teresina, Piauí, Brazil.
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9
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Grosbois J, Devos M, Demeestere I. Implications of Nonphysiological Ovarian Primordial Follicle Activation for Fertility Preservation. Endocr Rev 2020; 41:5882019. [PMID: 32761180 DOI: 10.1210/endrev/bnaa020] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023]
Abstract
In recent years, ovarian tissue cryopreservation has rapidly developed as a successful method for preserving the fertility of girls and young women with cancer or benign conditions requiring gonadotoxic therapy, and is now becoming widely recognized as an effective alternative to oocyte and embryo freezing when not feasible. Primordial follicles are the most abundant population of follicles in the ovary, and their relatively quiescent metabolism makes them more resistant to cryoinjury. This dormant pool represents a key target for fertility preservation strategies as a resource for generating high-quality oocytes. However, development of mature, competent oocytes derived from primordial follicles is challenging, particularly in larger mammals. One of the main barriers is the substantial knowledge gap regarding the regulation of the balance between dormancy and activation of primordial follicles to initiate their growing phase. In addition, experimental and clinical factors also affect dormant follicle demise, while the mechanisms involved remain largely to be elucidated. Moreover, most of our basic knowledge of these processes comes from rodent studies and should be extrapolated to humans with caution, considering the differences between species in the reproductive field. Overcoming these obstacles is essential to improving both the quantity and the quality of mature oocytes available for further fertilization, and may have valuable biological and clinical applications, especially in fertility preservation procedures. This review provides an update on current knowledge of mammalian primordial follicle activation under both physiological and nonphysiological conditions, and discusses implications for fertility preservation and priorities for future research.
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Affiliation(s)
- Johanne Grosbois
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium.,Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Melody Devos
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium
| | - Isabelle Demeestere
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium.,Obstetrics and Gynecology Department, Erasme Hospital, Brussels, Belgium
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10
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Antral follicular count and its relationship with ovarian volume, preantral follicle population and survival, oocyte meiotic progression and ultrastructure of in vitro matured bovine cumulus-oocyte complexes. ZYGOTE 2020; 28:495-503. [PMID: 32811580 DOI: 10.1017/s0967199420000386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study aimed to evaluate the relationship between antral follicular count (AFC) and ovarian volume (OV), preantral follicular population and survival, meiotic progression and ultrastructure of cumulus-oocyte complexes (COCs) after in vitro maturation. In experiment 1, the relationship between AFC and preantral follicle population and survival was evaluated by classical histology. In experiment 2, the relationship among AFC, OV, ability of oocytes to resume meiosis and ultrastructure of in vitro matured bovine COCs was studied. A positive correlation (P < 0.05) between AFC and the numbers of healthy primordial, degenerate and total follicles was observed, as well as with healthy secondary follicles and total follicles. The numbers of grades I and II oocytes in ovaries of high AFC class were higher compared with those with intermediate or lower AFC. After in vitro maturation, COCs from ovaries of high AFC had a higher percentage of oocytes in metaphase II compared with those of intermediate and low AFC (P < 0.0001). Ovaries of intermediate AFC had a higher percentage of oocytes in metaphase II compared with ovaries with low AFC (P < 0.0001). The proportion of oocytes in metaphase I, telophase I and anaphase I in COCs from ovaries of intermediate AFC (26.04%) was higher (P < 0.05) compared with that seen in COCs of ovaries with high (8.55%) and low (14.15%) AFC. No differences in the ultrastructure of oocytes were seen. In conclusion, after in vitro maturation, cow ovaries with high AFC have higher numbers of oocytes that reach in metaphase II (MII), but they also have higher numbers of degenerated primordial and primary follicles.
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Aguiar FLN, Gastal GDA, Alves KA, Alves BG, Figueiredo JR, Gastal EL. Supportive techniques to investigate in vitro culture and cryopreservation efficiencies of equine ovarian tissue: A review. Theriogenology 2020; 156:296-309. [PMID: 32891985 DOI: 10.1016/j.theriogenology.2020.06.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 12/22/2022]
Abstract
During the reproductive lifespan of a female, only a limited quantity of oocytes are naturally ovulated; therefore, the mammalian ovary possesses a substantial population of preantral follicles available to be handled and explored in vitro. Hence, the manipulation of preantral follicles enclosed in ovarian tissue aims to recover a considerable population of oocytes of high-value animals for potential application in profitable assisted reproductive technologies (ARTs). For this purpose, the technique of preantral follicle in vitro culture (IVC) has been the most common research tool, achieving extraordinary results with offspring production in the mouse model. Although promising outcomes have been generated in livestock animals after IVC of preantral follicles, the quantity and quality of embryo production with those oocytes are still poor. In recent years, the mare has become an additional model for IVC studies due to remarkable similarities with women and livestock animals regarding in vivo and in vitro ovarian folliculogenesis. For a successful IVC system, several factors should be carefully considered to provide an optimum culture environment able to support the viability and growth of preantral follicles enclosed in ovarian tissue. The cryopreservation of the ovarian tissue is another important in vitro manipulation technique that has been used to preserve the reproductive potential in humans and, in the future, may be used in highly valuable domestic animals or endangered species. Several improvements in cryopreservation protocols are necessary to support the utilization of ovarian tissue of different species in follow-up ARTs (e.g., ovarian fragment transplantation). This review aims to provide an update on the most current advances regarding supportive in vitro techniques used in equids to evaluate and manipulate preantral follicles and ovarian tissue, as well as methodological approaches used during IVC and cryopreservation techniques.
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Affiliation(s)
- F L N Aguiar
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA; Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Ceará, Brazil; Department of Veterinary Medicine, Sousa Campus, Federal Institute of Education, Science and Technology of Paraíba, Sousa, Paraíba, Brazil.
| | - G D A Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA; National Institute of Agricultural Research, INIA La Estanzuela, Colonia, Uruguay
| | - K A Alves
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA; Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Ceará, Brazil; Postgraduate Program of Gynecology and Obstetrics, Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - B G Alves
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA; Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Ceará, Brazil; Animal Bioscience Postgraduate Program, Federal University of Goiás, Jataí, Goiás, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, Ceará, Brazil
| | - E L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA.
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Lienou LL, Telefo PB, Rodrigues GQ, Donfack JN, Araújo RA, Bruno JB, Njimou JR, Mbemya TG, Santos RR, Souza JF, Figueiredo JR, Rodrigues APR. Effect of different extracts and fractions of Senecio biafrae (Oliv. &Hiern) J. Moore on in vivo and in vitro parameters of folliculogenesis in experimental animals. JOURNAL OF ETHNOPHARMACOLOGY 2020; 251:112571. [PMID: 31935494 DOI: 10.1016/j.jep.2020.112571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 11/26/2019] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Senecio biafrae is a medicinal plant widely used in traditional medicine to cure female infertility. Some effects have been pharmacologically demonstrated on immature female rats but in vivo and in vitro investigations are still necessary for determining its mechanism of action. The aim of the present study was to evaluate the estrogenic and FSH-like effects of the plant extracts and fractions on some fertility parameters in immature female rats and on in vitro survival and growth of swine preantral follicles. METHODS 21-23 days old female Wistar rats orally received extracts and fractions of S. biafrae at 0, 8 and 64 mg/kg doses over 20 days. The LH, FSH, estradiol and progesterone serum levels were evaluated as well as the ovarian cholesterol, uterus and ovaries masses and proteins. The numbers of follicles at different developmental stages were recorded in ovarian cortexes after histology. Slices of swine ovarian cortexes were cultured along 1 or 7 days in alpha-minimum essential medium (α-MEM) and fixed for morphological analysis of preantral follicles. The fresh control, cultured control (CIV control) and different Senecio biafrae-treated ovarian fragments were analyzed for preantral follicles development. Treatments that showed the best follicle growth in culture were submitted to AgNOR test. The aqueous and MeOH/CH2Cl2 extracts as well as the ethyl acetate and hexane fractions of S. biafrae were submitted to the HPLC for analysis of polyphenolic secondary metabolites. RESULTS Ovarian and uterine proteins were significantly high (p < 0.01) in animals treated with the two dosages of ethyl acetate and n-butanol fractions. The same result was recorded with uterine proteins in animals treated with the hexane fraction. The FSH level significantly dropped with all ethanolic extract doses and with the 64 mg/kg dosage of the methanol/methylene chloride (MeOH/CH2Cl2) extract while LH was reduced (p < 0.01) in almost all the treated groups. Estradiol level was significantly increased (p < 0.001) in the three groups receiving the extracts, but reduced (p < 0.001) in the three groups receiving the fractions of the plant. The progesterone level increased with almost all the treated groups. Primary and secondary follicles augmented (p < 0.01) in MeOH/CH2Cl2 extract and n-butanol fraction while tertiary follicles increased with the same extract and the ethyl acetate fraction (p < 0.05). Treatments with aqueous and ethanolic extracts as well as ethyl acetate fraction led to a significant increase (p < 0.05) in the number of morphologically normal follicles after 7 days of culture as compared to the CIV control. The number of AgNOR dots per follicle was significantly low (p < 0.05) in all cultured groups as compared to the fresh control, except the ethyl acetate 2.8 ng/ml dosage. The same observation was done with AgNOR dots per cell in the 2.8 ng/ml dosage aqueous extract-treated fragments. The phenolic compounds mainly encountered in the plant, independently of the extract or fraction are apigenin, eugenol and rutin. CONCLUSION Extracts and fractions of S. biafrae have an important FSH-like effect which induces follicular survival and growth.
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Affiliation(s)
- L L Lienou
- University of Dschang, Faculty of Science, Department of Biochemistry, URBPMAN, Dschang, Cameroon; State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - P B Telefo
- University of Dschang, Faculty of Science, Department of Biochemistry, URBPMAN, Dschang, Cameroon.
| | - G Q Rodrigues
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - J N Donfack
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - R A Araújo
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - J B Bruno
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - J R Njimou
- University of Ngaoundere, School of Chemical Engineering and Mineral Industries, Ngaoundere, Cameroon.
| | - T G Mbemya
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - R R Santos
- Federal University of Pará, Castanhal, Brazil.
| | - J F Souza
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil; Laboratory Brio Genetics and Biotechnology Ltd, Araguaína, TO, Brazil.
| | - J R Figueiredo
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - A P R Rodrigues
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
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Montano Vizcarra DA, Pinto Silva Y, Bezerra Bruno J, Calado Brito DC, Dipaz Berrocal D, Mascena Silva L, Gaudencio dos Santos Morais ML, Alves BG, Alves KA, Weber Santos Cibin F, Figueiredo JR, Zelinski MB, Ribeiro Rodrigues AP. Use of synthetic polymers improves the quality of vitrified caprine preantral follicles in the ovarian tissue. Acta Histochem 2020; 122:151484. [PMID: 31902536 DOI: 10.1016/j.acthis.2019.151484] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 11/25/2022]
Abstract
The aim of this study was to evaluate whether the addition of synthetic polymers to the vitrification solution affected follicular morphology and development and the expression of Ki-67, Aquaporin 3 (AQP3) and cleaved Caspase-3 proteins in ovarian tissue of the caprine species. Caprine ovaries were fragmented and two fragments were immediately fixed (Fresh Control) for morphological evaluation, while other two were in vitro cultured for 7 days (Cultured Control) and fixed as well. The remaining fragments were distributed in two different vitrification groups: Vitrified and Vitrified/Cultured. Each group was composed of 4 different treatments: 1) Sucrose (SUC); 2) SuperCool X-1000 0.2 % (X-1000); 3) SuperCool Z-1000 0.4 % (Z-1000) or 4) with polyvinylpyrrolidone K-12 0.2 % (PVP). Also, Fresh Control, Cultured Control, SUC and X-1000 were destined to immunohistochemical detection of Ki-67, AQP3 and cleaved Caspase-3 proteins. Morphologically, the treatment with X-1000 showed no significant difference with the Fresh Control group and was superior to the other treatments. After the cleaved caspase-3 analysis, X-1000 showed the lowest percentages of strong immunostaining while Cultured Control showed the highest. Also, a positive correlation was found between the percentages of degenerated follicles and the percentages of strong staining intensity follicles. Regarding the AQP3 analysis, the highest percentages of strong AQP3 staining intensity were found in X-1000. In conclusion, we have demonstrated that the addition of the synthetic polymer SuperCool X-1000 to the vitrification solution improved the current vitrification protocol of caprine ovarian tissue.
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Pontes LMDS, Gouveia BB, Menezes VG, de Barros VRP, Barberino RDS, do Monte APO, Donfack NJ, Celestino JJDH, Salgueiro CCDM, de Figueiredo JR, de Matos MHT. Supplemented powdered coconut water (ACP-406 ®) promotes growth of goat secondary follicles and oocyte meiotic resumption. Anim Reprod 2019; 16:819-828. [PMID: 32368259 PMCID: PMC7189492 DOI: 10.21451/1984-3143-ar2019-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this study was to test the efficiency of powdered coconut water (ACP-406®) base-medium without or with the addition of supplements on in vitro culture of isolated goat secondary follicles. Follicles were cultured for 18 days in α-MEM or in ACP-406®, both without supplements (referred to as α-MEM and ACP, respectively), or both supplemented with BSA, insulin, transferrin, selenium, glutamine, hypoxanthine, and ascorbic acid (referred to as α-MEM+ and ACP+). Follicular morphology, antrum formation, follicular and oocyte diameter, levels of glutathione (GSH), and chromatin configuration after in vitro maturation were evaluated. At the end of culture, ACP-406® base-medium (without or with supplements) showed a higher (P < 0.05) percentage of normal follicles than α-MEM (without or with supplements). Antrum formation was similar among α-MEM+, ACP and ACP+, and significantly higher than α-MEM without supplements. The follicular diameter was greater in ACP+ than α-MEM, and similar to other treatments. Moreover, fully and daily grown rates were higher (P < 0.05) in ACP-406® base-medium (without or with supplements) than α-MEM (without or with supplements). Levels of GSH were similar between ACP+ and α-MEM+ treatments. Both ACP+ and α-MEM+ allowed meiotic resumption without a significant difference between the two groups. In conclusion, supplemented ACP-406® base-medium maintained follicular survival and promoted the development as well as meiotic resumption of isolated goat secondary follicles cultured in vitro for 18 days.
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Affiliation(s)
- Luana Mirela de Sales Pontes
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | - Bruna Bortoloni Gouveia
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | - Vanúzia Gonçalves Menezes
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | - Vanessa Raquel Pinto de Barros
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | - Ricássio de Sousa Barberino
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | - Alane Pains Oliveira do Monte
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | - Nathalie Jiatsa Donfack
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
| | | | | | - José Ricardo de Figueiredo
- Universidade Estadual do Ceará, Faculdade de Medicina Veterinária, Laboratório de Manipulação de Oócitos e Folículos Pré-Antrais, Fortaleza, CE, Brasil
| | - Maria Helena Tavares de Matos
- Universidade Federal do Vale do São Francisco, Núcleo de Biotecnologia Aplicada ao Desenvolvimento de Folículos Ovarianos, Petrolina, PE, Brasil
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Castañeda OJR, de Aguiar FLN, de Sá NAR, Morais MLGDS, Cibin FWS, Torres CAA, de Figueiredo JR. Powdered coconut water (ACP 406®) as an alternative base culture medium for in vitro culture of goat preantral follicles enclosed in ovarian tissue. Anim Reprod 2019; 16:838-845. [PMID: 32368261 PMCID: PMC7189440 DOI: 10.21451/1984-3143-ar2019-0011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
This study evaluated a powdered coconut water solution (ACP 406®) as a base culture medium on the in vitro survival and development of in situ goat preantral follicles. The ovarian fragments were either immediately fixed in Carnoy solution (non-cultured control) or individually cultured for 2 or 6 days. The following culture media (all containing 100 μg/mL penicillin and 100 μg/mL streptomycin) were evaluated: α-MEM (α-MEM alone, without additional supplementation); α-MEM+ (supplemented α-MEM); ACP (ACP®406 alone); or ACP+ (supplemented ACP®406). Additional supplementation includes: 1.25 mg/mL bovine serum albumin, 10 μg/mL insulin, 5.5 μg/mL transferrin, 5 ng/mL selenium, 2 mM glutamine, and 2 mM hypoxanthine. The endpoints (i) follicular morphology; (ii) development; (iii) estradiol production; and (iv) reactive oxygen species (ROS) were recorded. Data were analyzed using chi-square, Turkey, t-test or One-Way ANOVA. Differences were considered significant when P < 0.05. At day 2 of culture, a greater (P < 0.05) percentage of morphologically normal follicles was observed between ACP+ and ACP treatments. Moreover, at day 2 of culture, no hormonal difference (P < 0.05) was observed between ACP+ and both α-MEM treatments. At day 6 of culture when ACP and α-MEM treatments were compared the percentage of healthy follicles were similar (P > 0.05) among treatments. Overall, all treatments had lower primordial follicles (P < 0.05) accompany by greater developing follicles (P < 0.05) percentages than non-cultured control treatment, indicating primordial follicle activation. However, at day 6 of culture, the percentage of primordial follicle development were similar (P > 0.05) among the treatments. Likewise, no differences (P > 0.05) were observed for ROS production and follicular and oocyte diameters among treatments. Therefore, ACP+ has the equivalent efficiency to MEM+ in maintaining the survival and development of goat preantral follicles, representing an alternative plant-based low-cost culture medium for in vitro culture.
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Affiliation(s)
- Olga Juliana Roldan Castañeda
- Universidade Estadual do Ceará, Laboratório de Manipulação de Oócitos Inclusos em Folículos Ovarianos Pré-antrais, Fortaleza, CE, Brasil.,Universidade Federal de Viçosa, Laboratório de Fisiologia Animal e Reprodução, Viçosa, MG, Brasil
| | - Francisco Léo Nascimento de Aguiar
- Universidade Estadual do Ceará, Laboratório de Manipulação de Oócitos Inclusos em Folículos Ovarianos Pré-antrais, Fortaleza, CE, Brasil
| | - Naiza Arcângela Ribeiro de Sá
- Universidade Estadual do Ceará, Laboratório de Manipulação de Oócitos Inclusos em Folículos Ovarianos Pré-antrais, Fortaleza, CE, Brasil
| | | | | | | | - José Ricardo de Figueiredo
- Universidade Estadual do Ceará, Laboratório de Manipulação de Oócitos Inclusos em Folículos Ovarianos Pré-antrais, Fortaleza, CE, Brasil
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Campos LB, da Silva AM, Praxedes ECG, Bezerra LGP, Gama Lins TLB, Menezes VG, de Matos MHT, Lima GL, Rodrigues APR, Silva AR. Vitrification of collared peccary ovarian tissue using open or closed systems and different intracellular cryoprotectants. Cryobiology 2019; 91:77-83. [PMID: 31639331 DOI: 10.1016/j.cryobiol.2019.10.193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 02/09/2023]
Abstract
This study aimed to evaluate different vitrification methods using distinct cryoprotectants (CPAs) for the preservation of collared peccary ovarian preantral follicles (PFs). Ovarian pairs from six females were fragmented and three fragments (fresh control group) were immediately evaluated for morphology, viability, cell proliferation capacity (assessed by quantifying the number of argyrophilic nucleolus organizer regions - NORs), and apoptosis (by the identification of activated caspase-3 expression). The remaining 18 fragments were vitrified using the solid surface vitrification (SSV) method or the ovarian tissue cryosystem (OTC) with 3 M ethylene glycol (EG), 3 M dimethylsulfoxide (DMSO), or a combination of the two (1.5 M EG/1.5 M DMSO). After two weeks, samples were rewarmed and evaluated as described previously. The OTC with any of the CPAs provided a similar conservation of morphologically normal PFs as the fresh control group (75.6 ± 8.6%); however, the SSV was only efficient with DMSO alone (63.9 ± 7.6%). Regarding the viability or cell proliferation, all tested groups provided post rewarming values similar to those observed for the fresh control group, 84.0 ± 2.9% viable cells with 2.0 ± 0.2 NORs. Related to apoptosis analysis, only the OTC with EG (46.7%) and the SSV method with EG (43.4%) or the combination of EG and DMSO (33.4%) provided similar values to those found for the fresh control group (36.7%). Our findings indicate the utilization of a closed system, the OTC, with 3 M EG as the CPA for the vitrification of collared peccary ovarian tissue.
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Affiliation(s)
- Lívia Batista Campos
- Laboratory of Animal Germplasm Conservation (LCGA), Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil
| | - Andréia Maria da Silva
- Laboratory of Animal Germplasm Conservation (LCGA), Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil
| | - Erica Camila Gurgel Praxedes
- Laboratory of Animal Germplasm Conservation (LCGA), Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil
| | | | - Thae Lanne Barbosa Gama Lins
- Laboratory of Biotechnology Applied to Ovarian Follicle Development (BIOFOV), Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Vanúzia Gonçalves Menezes
- Laboratory of Biotechnology Applied to Ovarian Follicle Development (BIOFOV), Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Maria Helena Tavares de Matos
- Laboratory of Biotechnology Applied to Ovarian Follicle Development (BIOFOV), Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | | | - Ana Paula Ribeiro Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation (LCGA), Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brazil.
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Santos JMS, Lins TLBG, Barberino RS, Menezes VG, Gouveia BB, Matos MHT. Kaempferol promotes primordial follicle activation through the phosphatidylinositol 3-kinase/protein kinase B signaling pathway and reduces DNA fragmentation of sheep preantral follicles cultured in vitro. Mol Reprod Dev 2019; 86:319-329. [DOI: 10.1002/mrd.23107] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 12/23/2018] [Indexed: 02/06/2023]
Affiliation(s)
- J. M. S. Santos
- Department of Veterinary Medicine, Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley; Petrolina Pernambuco Brazil
| | - T. L. B. G. Lins
- Department of Veterinary Medicine, Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley; Petrolina Pernambuco Brazil
| | - R. S. Barberino
- Department of Veterinary Medicine, Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley; Petrolina Pernambuco Brazil
| | - V. G. Menezes
- Department of Veterinary Medicine, Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley; Petrolina Pernambuco Brazil
| | - B. B. Gouveia
- Department of Veterinary Medicine, Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley; Petrolina Pernambuco Brazil
| | - M. H. T. Matos
- Department of Veterinary Medicine, Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley; Petrolina Pernambuco Brazil
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Panta AMT, Silva AFBD, Padilha RT, Correia HHV, Rondina D, Figueiredo JR, Magalhães Padilha DDM. Evaluation of in vitro culture systems for goat preantral follicles using reused ovaries from reproductive biotechniques: An alternative to maximize the potential of reproduction. Reprod Domest Anim 2018; 54:480-485. [PMID: 30444528 DOI: 10.1111/rda.13377] [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: 06/05/2018] [Accepted: 11/12/2018] [Indexed: 11/29/2022]
Abstract
This study aimed to examine the in vitro culture of secondary preantral follicles, using reused ovaries, to compare both the 2D and 3D methods of in vitro culture of preantral follicles, and the system of medium replacement. Twenty-five pairs of ovaries from mixed-breed goats were used for the experiment. Follicular puncture of antral follicles was performed for in vitro production. After this procedure, the secondary preantral follicles were submitted to a microdissection procedure. The isolated preantral follicles were randomly divided into three treatments: (a) Two-dimensional culture with partial replacement of medium during culture (2D PR), (b) Three-dimensional culture with addition of medium during culture (3D AD) and (c) Three-dimensional culture with partial replacement of medium (3D PR). The culture period was 18 days. All treatments at the end of the in vitro culture period (18 days) presented a follicular survival rate which ranged from 59% to 70%, demonstrating that it was possible to perform an experiment with preantral follicles using ovaries that had previously been used in another reproductive biotechnique. The 3D AD treatment showed a survival percentage and follicular diameter higher than the 2D PR treatment, however, it did not differ from the 3D PR treatment. In conclusion, experiments employing the use of preantral follicles can be performed with success after the ovaries have been used for experiments with antral follicles. Moreover, the three-dimensional system with the addition of medium is recommended for in vitro culture of preantral follicles, since this system is more practical and financially feasible.
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Affiliation(s)
| | | | | | - Hudson Henrique Vieira Correia
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculdade de Veterinaria, State University of Ceará, Fortaleza, Brazil
| | - Davide Rondina
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculdade de Veterinaria, State University of Ceará, Fortaleza, Brazil
| | - José Ricardo Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculdade de Veterinaria, State University of Ceará, Fortaleza, Brazil
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Max MC, Bizarro-Silva C, Búfalo I, González SM, Lindquist AG, Gomes RG, Barreiros TRR, Lisboa LA, Morotti F, Seneda MM. In vitro culture supplementation of EGF for improving the survival of equine preantral follicles. In Vitro Cell Dev Biol Anim 2018; 54:687-691. [PMID: 30284096 DOI: 10.1007/s11626-018-0296-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 09/19/2018] [Indexed: 11/30/2022]
Abstract
Folliculogenesis is a process of development and maturation of the ovarian follicles, being essential for the maintenance of fertility. In in vivo conditions, 99.9% of the follicles of an ovary do not ovulate and undergo atresia. In order to minimize this loss and to clarify the existing mechanisms, a technique was developed that allows for the in vitro follicular development. The objective of this study was to evaluate the effects of different epidermal growth factor (EGF) concentrations on the in vitro culturing of equine preantral follicles. Ovaries (n = 10) were collected from a local slaughterhouse of mares in seasonal anestrus, washed with 70% alcohol and PBS, and transported. The inner portion of the ovary was divided into 11 fragments of approximately 3 × 3 × 1 mm. A fragment of each ovary was immediately fixed in Bouin (control group). The remaining 10 fragments were individually cultured for 2 and 6 d. The medium was supplemented with different concentrations of EGF (0, 10, 50, 100, and 200 ng/mL). After cultivation, the fragments were processed and classified according to the developmental stage and morphology. In total, 1065 slides containing 6105 tissue sections were evaluated. Within 2 d of culture, there was a higher proportion of intact follicles at the EGF concentrations of 0 and 100 ng/mL (p > 0.05). After 6 d of culture, only the EGF concentration of 100 ng/mL demonstrated a difference when compared to the other treatments (0, 10, 50 and 200 ng/mL of EGF, p > 0.05). There was follicular development after 2 d at all EGF concentrations. Thus, we suggest that EGF promotes follicular survival in equines at a concentration of 100 ng/mL in in vitro cultures of ovarian fragments for 2 d. In addition, we suggest that EGF promotes follicular survival in equines at a concentration of 100 ng/mL in situ cultivation.
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Affiliation(s)
- Marilu Constantino Max
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Camila Bizarro-Silva
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil. .,Laboratory Animal Reproduction, DCV, CCA, UEL, Londrina, PR, 86051-990, Cx. Postal: 10.011, Brazil.
| | - Isabela Búfalo
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Suellen Miguez González
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Andressa Guidugli Lindquist
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Roberta Garbelini Gomes
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Thales Ricardo Rigo Barreiros
- Department of Veterinary and Animal Production, Laboratory of Biotechnology of Animal Reproduction, State University of Northern Parana, Jacarezinho, Parana, Brazil
| | - Lívia Aires Lisboa
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Fábio Morotti
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
| | - Marcelo Marcondes Seneda
- Department of Veterinary Clinical, Laboratory of Animal Reproduction, University of Londrina, Londrina, Parana, Brazil
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Bezerra MÉS, Gouveia BB, Barberino RS, Menezes VG, Macedo TJS, Cavalcante AYP, Monte APO, Santos JMS, Matos MHT. Resveratrol promotes in vitro activation of ovine primordial follicles by reducing DNA damage and enhancing granulosa cell proliferation via phosphatidylinositol 3-kinase pathway. Reprod Domest Anim 2018; 53:1298-1305. [PMID: 30101992 DOI: 10.1111/rda.13274] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/29/2018] [Indexed: 01/21/2023]
Abstract
We aimed to study the effects of resveratrol on the morphology, DNA fragmentation, follicular activation and cell proliferation after in vitro culture of ovine ovarian tissue, and to verify if PI3K pathway is involved in resveratrol action in the sheep ovary. Ovaries were collected and divided into fragments. One fragment was fixed for histology (fresh control). The remaining fragments were cultured for 7 days in control medium (α-MEM+ ) alone or with resveratrol (2, 10 or 30 µM). After culture, ovarian tissue was destined to morphological analysis. TUNEL and proliferating cell nuclear antigen (PCNA) analyses were performed in the fresh control, α-MEM+ and 2 µM resveratrol. Inhibition of PI3K activity was performed through pre-treatment with LY294002. The percentage of normal follicles was similar between α-MEM+ and 2 µM resveratrol, and higher than those in other resveratrol treatments. An increase in follicular activation was observed in all treatments compared to fresh control. DNA fragmentation decreased in tissues cultured in 2 µM resveratrol compared to α-MEM+ . Moreover, PCNA-positive cells were higher in 2 µM resveratrol than in α-MEM+ . LY294002 inhibited follicular activation stimulated by α-MEM+ and 2 µM resveratrol. In conclusion, 2 µM resveratrol promotes primordial follicle activation compared to the fresh control by reducing DNA fragmentation and stimulating granulosa cell proliferation through activation of the PI3K pathway.
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Affiliation(s)
- Maria Éllida S Bezerra
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Bruna B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Vanúzia G Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Taís J S Macedo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Agnes Y P Cavalcante
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Alane P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Jamile M S Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Maria Helena T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
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21
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Lopes KRF, Praxedes ECG, Campos LB, Bezerra MB, Lima GL, Saraiva MVA, Silva AR. Vitrification of ovarian tissue of Brazilian North-eastern donkeys (Equus asinus
) using different cryoprotectants. Reprod Domest Anim 2018; 53:1060-1067. [DOI: 10.1111/rda.13203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 04/04/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Kátia Regina F. Lopes
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Erica Camila G. Praxedes
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Livia B. Campos
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Marcelo B. Bezerra
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Gabriela L. Lima
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Márcia Viviane A. Saraiva
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
| | - Alexandre R. Silva
- Laboratory of Animal Germplasm Conservation-LCGA; Universidade Federal Rural do Semi-Arido-UFERSA; Mossoró RN Brazil
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22
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Sá NAR, Bruno JB, Guerreiro DD, Cadenas J, Alves BG, Cibin FWS, Leal-Cardoso JH, Gastal EL, Figueiredo JR. Anethole reduces oxidative stress and improves in vitro survival and activation of primordial follicles. ACTA ACUST UNITED AC 2018; 51:e7129. [PMID: 29846431 PMCID: PMC5999067 DOI: 10.1590/1414-431x20187129] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 04/13/2018] [Indexed: 01/16/2023]
Abstract
Primordial follicles, the main source of oocytes in the ovary, are essential for
the maintenance of fertility throughout the reproductive lifespan. To the best
of our knowledge, there are no reports describing the effect of anethole on this
important ovarian follicle population. The aim of the study was to investigate
the effect of different anethole concentrations on the in vitro
culture of caprine preantral follicles enclosed in ovarian tissue. Randomized
ovarian fragments were fixed immediately (non-cultured treatment) or distributed
into five treatments: α-MEM+ (cultured control), α-MEM+
supplemented with ascorbic acid at 50 μg/mL (AA), and anethole at 30 (AN30), 300
(AN300), or 2000 µg/mL (AN2000), for 1 or 7 days. After 7 days of culture, a
significantly higher percentage of morphologically normal follicles was observed
when anethole at 2000 μg/mL was used. For both culture times, a greater
percentage of growing follicles was observed with the AN30 treatment compared to
AA and AN2000 treatments. Anethole at 30 and 2000 µg/mL concentrations at days 1
and 7 of culture resulted in significantly larger follicular diameter than in
the cultured control treatment. Anethole at 30 µg/mL concentration at day 7
showed significantly greater oocyte diameter than the other treatments, except
when compared to the AN2000 treatment. At day 7 of culture, levels of reactive
oxygen species (ROS) were significantly lower in the AN30 treatment than the
other treatments. In conclusion, supplementation of culture medium with anethole
improves survival and early follicle development at different concentrations in
the caprine species.
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Affiliation(s)
- N A R Sá
- Laboratório de Manipulação de Oócitos e Folículos Pré-antrais (LAMOFOPA), Faculdade de Medicina Veterinária, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
| | - J B Bruno
- Laboratório de Manipulação de Oócitos e Folículos Pré-antrais (LAMOFOPA), Faculdade de Medicina Veterinária, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
| | - D D Guerreiro
- Laboratório de Manipulação de Oócitos e Folículos Pré-antrais (LAMOFOPA), Faculdade de Medicina Veterinária, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
| | - J Cadenas
- Laboratório de Manipulação de Oócitos e Folículos Pré-antrais (LAMOFOPA), Faculdade de Medicina Veterinária, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
| | - B G Alves
- Laboratório de Biologia da Reprodução, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
| | - F W S Cibin
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa, Uruguaiana, RS, Brasil
| | - J H Leal-Cardoso
- Laboratório de Eletrofisiologia (LEF), Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
| | - E L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, Illinois, USA
| | - J R Figueiredo
- Laboratório de Manipulação de Oócitos e Folículos Pré-antrais (LAMOFOPA), Faculdade de Medicina Veterinária, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
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23
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Lima GL, Luz VB, Lima LF, Rocha RMP, Castro SV, Castelo TS, Rodrigues APR, Figueiredo JR, Silva AR. Interactions between different media and follicle-stimulating hormone supplementation on in vitro culture of preantral follicles enclosed in ovarian tissue derived from collared peccaries (Pecari tajacuLinneaus, 1758). Reprod Domest Anim 2018; 53:880-888. [DOI: 10.1111/rda.13179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 02/19/2018] [Indexed: 11/28/2022]
Affiliation(s)
- GL Lima
- Laboratory of Animal Germplasm Conservation; UFERSA; Mossoró RN Brazil
| | - VB Luz
- Centro Universitário CESMAC; Maceió AL Brazil
| | - LF Lima
- Laboratory of Ovarian Preantral Follicles Manipulation; UECE; Fortaleza CE Brazil
| | - RMP Rocha
- Laboratory of Ovarian Preantral Follicles Manipulation; UECE; Fortaleza CE Brazil
| | - SV Castro
- Laboratory of Ovarian Preantral Follicles Manipulation; UECE; Fortaleza CE Brazil
| | - TS Castelo
- Laboratory of Animal Germplasm Conservation; UFERSA; Mossoró RN Brazil
| | - APR Rodrigues
- Laboratory of Ovarian Preantral Follicles Manipulation; UECE; Fortaleza CE Brazil
| | - JR Figueiredo
- Laboratory of Ovarian Preantral Follicles Manipulation; UECE; Fortaleza CE Brazil
| | - AR Silva
- Laboratory of Animal Germplasm Conservation; UFERSA; Mossoró RN Brazil
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24
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Santos EA, Lima GL, Praxedes EC, Silva AM, Maia KM, Oliveira MF, Rodrigues APR, Silva AR. Estimation, morphometry and ultrastructure of ovarian preantral follicle population in agouti (Dasyprocta leporina). PESQUISA VETERINARIA BRASILEIRA 2018. [DOI: 10.1590/1678-5150-pvb-4946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT: The aim of this study was to characterize the preantral ovarian follicular population in agoutis (D. leporina) by estimating the number of follicles at each developmental category, and also describe the morphometry and the specific features of the follicle and the oocyte by using light and transmission electron microscopy. The length of each ovary was measured using a caliper rule, longitudinally sectioned into two halves and both were immediately fixed to perform the estimation of follicular population and ultrastructural analysis. The mean (±S.E.M.) population of follicular per pair of ovary was estimated at 4419.8±532.26 and 5397.52±574.91 for right and left ovaries, respectively, but no differences were observed between them. The diameters for follicles, oocyte and nuclei were: 18.62±3.40μm, 12.28±2.37μm and 6.10±0.93μm for primordial, 23.75±5.70μm, 14.22±3.00μm and 6.70±1.24μm for primary and 88.55±17.61μm, 52.85±17.56μm and 22.33±17.61μm for secondary follicles, respectively. The most of the follicles found belonged to the primordial category (86.63%), followed by primary (13.01%) and secondary (0.35%) one. Additionally, polyovular follicles were observed in all the animals and they represented 7.51% of the total follicles counted. The ultrastructural analysis showed that the oocyte presented a central and regular nuclei, displaying a homogenous mass. Among the organelles, the mitochondria were the most abundant and the oocyte Golgi apparatus was rarely observed. In conclusion, this work shows for the first time the characterization of the population of preantral follicles in the ovary of Dasyprocta leporina. Those information will be useful for further development and adaptation of biotechniques such as germplasm cryopreservation and in vitro gametes manipulation.
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25
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Cavalcante A, Lins T, Santos J, Barros V, Monte A, Barberino RS, Almeida J, Matos M. Supplemented Morus nigra extract-based medium associated with FSH enables the survival and growth of isolated ovine secondary ovarian follicles. Reprod Domest Anim 2017; 53:423-432. [PMID: 29265671 DOI: 10.1111/rda.13122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/06/2017] [Indexed: 01/15/2023]
Abstract
The effects of Morus nigra ethanolic extract, without or with addition of supplements associated or not with FSH, on in vitro culture of ovine secondary follicles were evaluated. In experiment 1, isolated secondary follicles were cultured for 12 days in α-MEM alone (control) or in different concentrations of M. nigra extract (MN 0.025; 0.05 or 0.1 mg/ml). In experiment 2, culture media were α-MEM supplemented with BSA, insulin, transferrin, selenium, glutamine, hypoxanthine and ascorbic acid (α-MEM+ ) or this medium associated with FSH (α-MEM+ + FSH), or 0.1 mg/ml M. nigra without supplements (MN 0.1) or supplemented (MN 0.1+ ) without or with FSH (MN 0.1+ + FSH). In experiment 1, 0.1 mg/ml M. nigra showed the highest percentages (p < .05) of normal follicles and fully grown oocytes, besides a higher follicular diameter than α-MEM and other M. nigra extract concentrations. Moreover, MN 0.1 showed lower (p < .05) glutathione (GSH) levels and similar (p > .05) mitochondrial activity compared to α-MEM. In experiment 2, MN 0.1+ + FSH showed similar results (p > .05) to α-MEM+ + FSH for all parameters evaluated, except for the daily growth rate, which was higher (p < .05) in MN 0.1+ + FSH. The GSH levels were higher in MEM+ than all treatments. In addition, oocytes from follicles cultured in MN 0.1+ + FSH showed ability to resume meiosis. In conclusion, M. nigra extract (0.1 mg/ml) added by supplements and FSH can be an efficient medium for ovine secondary follicle development.
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Affiliation(s)
- Ayp Cavalcante
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Tlbg Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Jms Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Vrp Barros
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Apo Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - R S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Jrgs Almeida
- Center for Studies and Research on Medicinal Plants, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
| | - Mht Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, Pernambuco, Brazil
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26
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Characterization of the ovarian preantral follicle populations and its correlation with age and nutritional status in Brazilian Northeastern donkeys (Equus assinus). Anim Reprod Sci 2017; 187:193-202. [DOI: 10.1016/j.anireprosci.2017.11.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 10/23/2017] [Accepted: 11/06/2017] [Indexed: 11/20/2022]
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27
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Praxedes ÉCG, Lima GL, Silva AM, Apolinário CAC, Bezerra JAB, Souza ALP, Oliveira MF, Rodrigues APR, Silva AR. Characterisation and cryopreservation of the ovarian preantral follicle population from Spix’s yellow-toothed cavies (Galea spixii Wagler, 1831). Reprod Fertil Dev 2017; 29:594-602. [DOI: 10.1071/rd15249] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 08/31/2015] [Indexed: 11/23/2022] Open
Abstract
The aim of the present study was to characterise the ovarian preantral follicle (PF) population and to establish a solid surface vitrification (SSV) process using dimethyl sulfoxide (DMSO) as a cryoprotectant for preservation of ovarian tissue from yellow-toothed cavies (Galea spixii). Ovaries were fixed for PF population analysis or were subjected to the SSV process. The mean (± s.e.m.) PF population per ovarian pair was estimated to be 416.0 ± 342.8. There were 140.0 ± 56.0 (63.4%) and 125.0 ± 58.0 (64.0%) primary follicles on the right and left ovaries, respectively. The proportion of this follicle category was significantly greater than that of other follicle categories (P < 0.05). The diameter of follicles (123.7 ± 18.3 µm), oocytes (50.1 ± 5.0 µm) and nuclei (14.27 ± 2.01 µm) was larger for secondary ones when compared with other PFs categories. Most PFs were morphologically normal (94.6%), with light microscopy identifying only a few atretic follicles (5.4%). After SSV, there was a reduction in the proportion of morphologically normal PFs compared with the non-vitrified group (69.5% vs 91.2%, respectively). Transmission electron microscopy revealed preservation of oocytes and granulosa cell membranes and the morphological aspect of follicles; the primary change observed in some vitrified PFs was the presence of vacuoles in the oocytes and granulosa cells cytoplasm and turgid mitochondria. In conclusion, the present study provides an estimative and characterization for the PF population in ovaries of G. spixii. Moreover, we report its PFs cryopreservation using an SSV process.
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28
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Rocha RMP, Lima LF, Carvalho AA, Chaves RN, Bernuci MP, Rosa-e-Silva ACJS, Rodrigues APR, Campello CC, Figueiredo JR. Immunolocalization of the Anti-Müllerian Hormone (AMH) in Caprine Follicles and the Effects of AMH on In Vitro Culture of Caprine Pre-antral Follicles Enclosed in Ovarian Tissue. Reprod Domest Anim 2016; 51:212-9. [PMID: 26834019 DOI: 10.1111/rda.12668] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/02/2016] [Indexed: 11/28/2022]
Abstract
The aims of this study were to evaluate the localization, by immunohistochemistry, of the anti-Müllerian hormone (AMH) in goat ovaries and to investigate its effects on the in vitro survival and development of caprine pre-antral follicles enclosed in fragments of ovarian tissue. Pre-antral follicles were cultured in vitro for 1 or 7 days in α-MEM(+) in the absence or presence of kit ligand (KL; 50 ng/ml, positive control) or AMH (50 or 150 ng/ml). The results showed that AMH was localized in oocytes and granulosa cells from the primordial follicle to antral follicle stages. Addition of AMH maintained the percentage of developing follicles, similar to that in the uncultured control; however, the percentage of developing follicles was significantly lower than that in the cultured control and KL. Nonetheless, addition of AMH to the culture medium did not affect survival rates and follicular growth. In conclusion, this study demonstrated that the expression of AMH varies according to the compartment and stage of follicular development. Furthermore, AMH inhibits the activation of caprine primordial follicles.
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Affiliation(s)
- R M P Rocha
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - L F Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - A A Carvalho
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - R N Chaves
- Laboratory Morphofunctional, Health Sciences Center, University of Fortaleza, Fortaleza-CE, Brazil
| | - M P Bernuci
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirao Preto, University of São Paulo, Ribeirão Preto-SP, Brazil
| | - A C J S Rosa-e-Silva
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirao Preto, University of São Paulo, Ribeirão Preto-SP, Brazil
| | - A P R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - C C Campello
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
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29
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Expression of angiotensin II receptors in the caprine ovary and improvement of follicular viability in vitro. ZYGOTE 2015; 24:568-77. [PMID: 26464313 DOI: 10.1017/s0967199415000544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This study aimed to evaluate mRNA levels of angiotensin II (ANG II) receptors (AGTR1 and AGTR2) in caprine follicles and to investigate the influence of ANG II on the viability and in vitro growth of preantral follicles. Real-time polymerase chain reaction (PCR) was used to quantify AGTR1 and AGTR2 mRNA levels in the different follicular stages. For culture, caprine ovaries were collected, cut into 13 fragments and then either directly fixed for histological and ultrastructural analysis (fresh control) or placed in culture for 1 or 7 days in α-minumum essential medium plus (α-MEM+) with 0, 1, 5, 10, 50 or 100 ng/ml ANG II. Then, the fragments were destined to morphological, viability and ultrastructural analysis. The results showed that primordial follicles had higher levels of AGTR1 and AGTR2 mRNA than secondary follicles. Granulosa/theca cells from antral follicles had higher levels of AGTR1 mRNA than their respective cumulus-oocyte complex (COCs). After 7 days of culture, ANG II (10 or 50 ng/ml) maintained the percentages of normal follicles compared with α-MEM+. Fluorescence and ultrastructural microscopy confirmed follicular integrity in ANG II (10 ng/ml). In conclusion, a high expression of AGTR1 and AGTR2 is observed in primordial follicles. Granulosa/theca cells from antral follicles had higher levels of AGTR1 mRNA. Finally, 10 ng/ml ANG II maintained the viability of caprine preantral follicles after in vitro culture.
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30
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Amburana cearensis leaf extract maintains survival and promotes in vitro development of ovine secondary follicles. ZYGOTE 2015; 24:277-85. [PMID: 26083197 DOI: 10.1017/s0967199415000179] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The antioxidant properties of Amburana cearensis extract may be a useful substitute for standard cell culture medium. Thus, the aim of this study was to evaluate the effect of this extract, with or without supplementation, on in vitro survival and development of sheep isolated secondary follicles. After collection of the ovaries, secondary follicles were isolated and cultured for 18 days in α-MEM+ supplemented with bovine serum albumin, insulin, transferrin, selenium, glutamine, hypoxanthine and ascorbic acid (control medium) or into medium composed of different concentrations of A. cearensis extract without supplements (Amb 0.1; 0.2 or 0.4 mg/ml) or A. cearensis extract supplemented with the same substances described above for α-MEM+ supplementation. The A. cearensis supplemented medium was named Amb 0.1+; 0.2+ or 0.4+ mg/ml. There were more morphologically normal follicles in Amb 0.1 or Amb 0.4 mg/ml than in the control medium (α-MEM+) after 18 days of culture. Moreover, the percentage of antrum formation was significantly higher in Amb 0.1 or Amb 0.2 mg/ml than in α-MEM+ and Amb 0.1+ mg/ml, and similar to the other treatments. All A. cearensis extract media induced a progressive and significant increase in follicular diameter throughout the culture period. In conclusion, this study showed that 0.1 mg/ml of this extract, without supplementation, maintains follicular survival and promotes the development of ovine isolated secondary follicles in vitro. This extract can be an alternative culture medium for preantral follicle development.
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Gomes RG, Lisboa LA, Silva CB, Max MC, Marino PC, Oliveira RL, González SM, Barreiros TRR, Marinho LSR, Seneda MM. Improvement of development of equine preantral follicles after 6 days of in vitro culture with ascorbic acid supplementation. Theriogenology 2015; 84:750-5. [PMID: 26074067 DOI: 10.1016/j.theriogenology.2015.05.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 05/07/2015] [Accepted: 05/07/2015] [Indexed: 02/08/2023]
Abstract
The aim of this study was to evaluate the effects of different concentrations of ascorbic acid (25, 50, and 100 μg/mL) in supplemented minimum essential medium (MEM+) on the development of equine preantral follicles that were cultured in vitro for 2 or 6 days. The contralateral ovaries (n = 5) from five mares in seasonal anestrus were collected from a local abattoir. Nine ovarian tissue fragments of approximately 5 × 5 × 1 mm were obtained from each animal. One fragment was immediately fixed and subjected to histologic analysis (control group; Day 0), and the other eight were placed in PBS supplemented with penicillin (200 IU/mL) and streptomycin (200 mg/mL) at 4 °C for 1 hour (during transport to the laboratory). The fragments were cultured in situ for 2 days (D2) or 6 days (D6) in MEM+ or MEM+ plus ascorbic acid at three different concentrations, establishing the following nine groups: control; MEM+ (D2); MEM+ (D6); MEM+ 25 μg/mL of ascorbic acid (D2); MEM+ 25 μg/mL of ascorbic acid (D6); MEM+ 50 μg/mL of ascorbic acid (D2); MEM+ 50 μg/mL of ascorbic acid (D6); MEM+ 100 μg/mL of ascorbic acid (D2); and MEM+ 100 μg/mL of ascorbic acid (D6). The preantral follicles were classified according to their stage (primordial, primary, secondary, or antral) and their morphology (normal or abnormal). Slides (n = 951) including 4450 histologic sections were evaluated. Follicles were observed in only 4.85% (216 of 4450) of the histologic sections. Of the 407 follicles evaluated, 120 were in the primordial stage and 287 were in different developmental stages; additionally, 43.5% were morphologically normal. After 6 days of culture, the groups cultured with 50 and 100 μg/mL of ascorbic acid differed in terms of follicular development compared with the other groups. On the basis of occurrence of follicular development and the presence of viable follicles, it can be concluded that a positive effect of culture for 6 days in MEM+ supplemented with 50 and 100 μg/mL of ascorbic acid was observed on equine ovarian fragments.
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Affiliation(s)
- R G Gomes
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - L A Lisboa
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - C B Silva
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - M C Max
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - P C Marino
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - R L Oliveira
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - S M González
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - T R R Barreiros
- Laboratório de Biotecnologia da Reprodução Animal, DVPA, UENP, Bandeirantes, Parana, Brazil
| | - L S R Marinho
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - M M Seneda
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil.
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Lower apoptosis rate in ovine preantral follicles from ovaries stored in supplemented preservation media. ZYGOTE 2015; 23:943-50. [PMID: 25626913 DOI: 10.1017/s0967199414000665] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The aim of this study was to investigate the effect of ovarian tissue transportation conditions (medium and period of time) on the morphology, apoptosis and development of ovine preantral follicles cultured in vitro. Each ovarian pair was cut into nine slices, with one fragment being fixed immediately (fresh control). The remaining fragments were placed individually in cryotubes containing conservation medium (minimal essential medium (MEM) without supplementation or MEM+ - with supplementation) and stored at 35ºC for 6 or 12 h without (non-cultured) or with subsequent culture for 5 days. Then, the fragments were processed for histological and terminal deoxynucleotidyl transferase (TdT) mediated dUTP nick-end labelling (TUNEL) examination. Preservation of ovarian slices in MEM or MEM+ (non-cultured) resulted in similar percentages of normal follicles when compared with the fresh control. Nevertheless, compared with the fresh control, a decrease in the percentage of normal follicles was observed in tissues cultured for 5 days. Only for tissues preserved in supplemented medium (MEM+) for 6 h, the percentage of TUNEL positive cells was similar between non-cultured tissues and tissues cultured for 5 days. Follicular activation and growth (follicular and oocyte diameter) were higher in cultured tissues than in fresh control or non-cultured tissues, except those from fragments preserved for 6 h in MEM and then cultured for 5 days in which no growth was observed. In conclusion, ovine ovarian tissue was successfully preserved in supplemented medium (MEM+) at a temperature close to physiological values (35°C) for up to 6 h without affecting apoptosis in the ovarian follicles and their ability to develop in vitro.
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Bandeira FT, Carvalho AA, Castro SV, Lima LF, Viana DA, Evangelista JSAM, Pereira MJS, Campello CC, Figueiredo JR, Rodrigues APR. Two Methods of Vitrification Followed byIn VitroCulture of the Ovine Ovary: Evaluation of the Follicular Development and Ovarian Extracellular Matrix. Reprod Domest Anim 2014; 50:177-185. [DOI: 10.1111/rda.12463] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 11/05/2014] [Indexed: 11/30/2022]
Affiliation(s)
- FT Bandeira
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - AA Carvalho
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - SV Castro
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - LF Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - DA Viana
- Laboratory of Histology of Effects Caused by Poisons of Snakes and Plants; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - JSAM Evangelista
- Laboratory Veterinary Pathology; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - MJS Pereira
- Laboratory of Neurophysiology; Institute of Biology Roberto Alcântara Gomes; State University of Rio de Janeiro; Rio de Janeiro-RJ Brazil
| | - CC Campello
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - JR Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
| | - APR Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles; Veterinary of Faculty; State University of Ceará; Fortaleza-CE Brazil
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Nóbrega Jr. J, Rossetto R, Matos M, Chaves R, Magalhães D, Lima-Verde I, Báo S, Campello C, Figueiredo J, Gonçalves P, Oliveira J. Sphingosine 1-phosphate promotes activation of aprine preantral follicle in vitro. ARQ BRAS MED VET ZOO 2014. [DOI: 10.1590/1678-6455] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This study describes the effect of sphingosine 1-phosphate (S1P) for development of preantral follicle, therefore the activation and follicular viability of caprine follicles cultured in vitro. Ovarian fragments were cultured for 1 or 7 days in Minimum Essential Medium with different S1P concentrations (0, 1, 10, 50, 100 or 200ng/mL). All ovarian fragments were processed for histological analysis in optical microscopy, transmission electron microscopy and fluorescence analysis. The treatment using 1ng/mL of S1P was able to maintain the percentage of normal follicles with the progression of the culture from day 1 to 7. At end of the 7-day culture period there was a significant reduction (P<0.05) in the percentage of primordial follicles in all groups treated with S1P, compared with fresh control (FC) and Control Culture (CC), which was followed by an increase of activated follicles (intermediary, primary and secondary). In addition, the culture for 7 days with media supplemented with S1P with 1ng/mL preserved the ultrastructure of organelles and kept the preantral follicular viability when evaluated by fluorescence microscopy. In conclusion, after 7 days of culture, the 1ng/mL of S1P activates the development of preantral caprine follicles, cultured in situ and maintains the oocitary and follicular viability.
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Affiliation(s)
| | | | | | | | | | | | - S.N. Báo
- Universidade de Brasília, Brasil
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Brito IR, Lima IMT, Xu M, Shea LD, Woodruff TK, Figueiredo JR. Three-dimensional systems for in vitro follicular culture: overview of alginate-based matrices. Reprod Fertil Dev 2014; 26:915-30. [PMID: 23866836 PMCID: PMC11287383 DOI: 10.1071/rd12401] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 06/12/2013] [Indexed: 08/01/2024] Open
Abstract
The in vitro culture of ovarian follicles has provided critical insight into the biology of the follicle and its enclosed oocyte and the physical interaction and communication between the theca and granulosa cells and the oocyte that is necessary to produce meiotically competent oocytes. Various two-dimensional (2D) and three-dimensional (3D) culture systems have been developed to evaluate the effect of growth factors, hormones, extracellular matrix components and culture conditions on follicle development and oocyte growth and maturation. Among these culture systems, 3D systems make it possible to maintain follicle structure and support communication between the various cell compartments within the follicle. In this review article, we will discuss the three main approaches to ovarian follicle culture: 2D attachment systems, 3D floating systems and 3D encapsulated systems. We will specifically emphasise the development of and advances in alginate-based encapsulated systems for in vitro follicle culture.
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Affiliation(s)
- Ivina R. Brito
- Faculty of Veterinary, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), PPGCV, State University of Ceará, Fortaleza, CE 60740-930, Brazil
| | | | - Min Xu
- Division of Reproductive Biology and Clinical Research, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago IL, 60611, USA
| | - Lonnie D. Shea
- Division of Reproductive Biology and Clinical Research, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago IL, 60611, USA
| | - Teresa K. Woodruff
- Division of Reproductive Biology and Clinical Research, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago IL, 60611, USA
| | - José R. Figueiredo
- Faculty of Veterinary, Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), PPGCV, State University of Ceará, Fortaleza, CE 60740-930, Brazil
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Santos JMS, Menezes VG, Barberino RS, Macedo TJS, Lins TLB, Gouveia BB, Barros VRP, Santos LP, Gonçalves RJS, Matos MHT. Immunohistochemical localization of fibroblast growth factor-2 in the sheep ovary and its effects on pre-antral follicle apoptosis and development in vitro. Reprod Domest Anim 2014; 49:522-8. [PMID: 24750547 DOI: 10.1111/rda.12322] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 03/23/2014] [Indexed: 01/14/2023]
Abstract
Studies with sheep are important to improve our knowledge about the factors that control folliculogenesis in mammals and to explore possible physiological differences among species. The aims of this study were to characterize FGF-2 protein expression in ovine ovaries and to verify the effect of FGF-2 on the morphology, apoptosis and growth of ovine pre-antral follicles cultured in vitro. After collection, one fragment of ovarian tissue was fixed for histological analysis and TUNEL analysis (fresh control). The remaining fragments were cultured for 7 days in control medium (α-MEM(+) ) alone or supplemented with FGF-2 at different concentrations (1, 10, 50, 100 or 200 ng/ml). After culturing, ovarian tissue was destined to histology and TUNEL analysis, and oocyte and follicle diameters were measured. The immunostaining for FGF-2 was observed in oocytes from primordial, primary and secondary follicles, as well as in granulosa cells of secondary and antral follicles. The percentage of normal follicles was similar among control medium, 1 and 10 ng/ml FGF-2, and significantly higher than those observed in 50, 100 or 200 ng/ml FGF-2. A significant increase in follicle diameter was observed when tissues were cultured in 10, 50, 100 or 200 ng/ml FGF-2 compared with the fresh control and the other treatments. Similar results were observed for oocyte diameter in tissues cultured with 50, 100 or 200 ng/ml FGF-2 (p < 0.05). However, the percentage of apoptotic cells only decreased (p < 0.05) in ovarian tissues cultured in 1 or 10 ng/ml FGF-2 compared with the control medium and other FGF-2 treatments. In conclusion, this study demonstrated the presence of FGF-2 in ovine ovaries. Furthermore, 10 ng/ml FGF-2 inhibits apoptosis and promotes ovine follicle growth. As the sheep ovary is more similar to that of humans, the culture system demonstrated in this work seems to be an appropriate tool for studies towards human folliculogenesis.
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Affiliation(s)
- J M S Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of San Francisco Valley, Petrolina, PE, Brazil
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Pessoa AFC, Rocha RMP, Brito IR, Silva GM, Chaves RN, Magalhães-Padilha DM, Campello CC, Rodrigues APR, Nunes-Pinheiro DCS, Figueiredo JR. Effect of morphological integrity, period, and type of culture system on the in vitro development of isolated caprine preantral follicles. Theriogenology 2014; 82:312-7. [PMID: 24839921 DOI: 10.1016/j.theriogenology.2014.04.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 04/10/2014] [Accepted: 04/10/2014] [Indexed: 11/28/2022]
Abstract
The aims of this study were the following: (1) to define an optimal period for the IVC of isolated caprine preantral follicles, (2) to verify the relationship between follicular morphology (intact, extruded, and degenerate follicles) and estradiol production, and (3) to evaluate the effects of the bidimensional (2D) and three-dimensional (3D) culture systems on the in vitro development of caprine preantral follicles. Three experiments were performed. In experiments 1 and 2, the isolated secondary follicles were cultured for 18, 24, and 30 days or 30, 36, and 42 days, respectively. In experiment 3, the optimal culture period from experiment 2 was used for 2D and 3D culture systems. After culture, the oocytes were submitted to IVM. The morphological integrity, antral cavity formation rates, follicular diameter, presence of healthy, grown oocytes (≥110 μm), rates of resumption of meiosis, and estradiol concentrations were evaluated. In experiment 1, the percentage of oocytes that resumed meiosis was higher in oocytes cultured for 30 days (48.84%) than in oocytes cultured for 18 and 24 days (15% and 20.93%, respectively). In experiment 2, the percentage of oocytes that resumed meiosis was significantly higher in oocytes cultured for 30 and 36 days (47.5% and 50%, respectively) than in oocytes cultured for 42 days (20%). The estradiol concentrations on Day 12 of culture were similar for normal and extruded follicles and higher than those observed in degenerate follicles at the end of the culture period. In conclusion, the 36-day culture period resulted in the highest rates of meiosis resumption. In addition, because the loss of follicular integrity affects the patterns of estradiol production, follicular integrity is a good predictor of follicular quality.
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Affiliation(s)
- A F C Pessoa
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil.
| | - R M P Rocha
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
| | - I R Brito
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
| | - G M Silva
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
| | - R N Chaves
- Health Center, University of Fortaleza (UNIFOR), Edson Queiroz, Fortaleza, Ceará, Brazil
| | - D M Magalhães-Padilha
- Potiguar University/Laureate International Universities, Lagoa Nova, Natal, Ceará, Brazil
| | - C C Campello
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
| | - A P R Rodrigues
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
| | - D C S Nunes-Pinheiro
- Laboratory of Animal Biochemistry and Immunology Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Ceará, Brazil
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Martins FS, Saraiva MVA, Magalhães-Padilha DM, Almeida AP, Celestino JJH, Padilha RT, Cunha RMS, Silva JRV, Campello CC, Figueiredo JR. Presence of growth hormone receptor (GH-R) mRNA and protein in goat ovarian follicles and improvement of in vitro preantral follicle survival and development with GH. Theriogenology 2014; 82:27-35. [PMID: 24725418 DOI: 10.1016/j.theriogenology.2014.02.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 02/19/2014] [Accepted: 02/19/2014] [Indexed: 11/25/2022]
Abstract
This study aimed to demonstrate the expression of growth hormone receptor (GH-R) mRNA and protein in goat ovarian follicles in order to investigate the effects of GH on the survival and development of preantral follicles. The ovaries were processed for the isolation of follicles to study GH-R mRNA expression or to localization of GH-R by immunohistochemical analysis. Pieces of ovarian cortex were cultured for 7 days in minimum essential medium(+) (MEM(+)) in the presence or absence of GH at different concentrations (1, 10, 50, 100, and 200 ng/mL). High expression levels of GH-R mRNA were observed in granulosa/theca cells from large antral follicles. However, preantral follicles do not express mRNA for GH-R. Immunohistochemistry demonstrated that the GH-R protein was expressed in the oocytes/granulosa cells of antral follicles, but any protein expression was observed in preantral follicles. The highest (P < 0.05) rate of normal follicles and intermediate follicles was observed after 7 days in MEM(+) plus 10 ng/mL GH (70%). In conclusion, GH-R mRNA and protein are expressed in caprine antral follicles, but not in preantral follicles. Moreover, GH maintains the survival of goat preantral follicles and promotes the development of primordial follicles.
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Affiliation(s)
- F S Martins
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Brazil
| | - M V A Saraiva
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Brazil
| | | | - A P Almeida
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Brazil
| | - J J H Celestino
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Brazil
| | - R T Padilha
- Potiguar University/Laureate International Universities, Natal, Brazil
| | - R M S Cunha
- Biotechnology Nucleus of Sobral (NUBIS)-Federal University of Ceará, Sobral, Brazil
| | - J R V Silva
- Biotechnology Nucleus of Sobral (NUBIS)-Federal University of Ceará, Sobral, Brazil
| | - C C Campello
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes Enclosed in Preantral Follicles (LAMOFOPA), Veterinary Faculty, State University of Ceará, Fortaleza, Brazil
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Portela A, Ribeiro R, Costa J, Rossi R, Passos J, Vasconcelos G, Donato M, Peixoto C, Saraiva M, van den Hurk R, Silva J. Effects of different concentrations of concanavalin A and follicle stimulating hormone on goat primordial follicles activation, survival and gene expression. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2013.10.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fujihara M, Comizzoli P, Wildt DE, Songsasen N. Cat and dog primordial follicles enclosed in ovarian cortex sustain viability after in vitro culture on agarose gel in a protein-free medium. Reprod Domest Anim 2013; 47 Suppl 6:102-8. [PMID: 23279476 DOI: 10.1111/rda.12022] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 07/09/2012] [Indexed: 11/30/2022]
Abstract
Our objective was to examine the influences of differing media, protein supplementation and the microenvironment on cat vs dog primordial follicle viability in vitro. Ovarian cortical slices were cultured for 3, 9 or 15 days in α-minimum essential medium (α-MEM) or MEM supplemented with 10% fetal bovine serum (FBS), 10% knock-out serum replacement (KSR) or 0.1% polyvinyl alcohol (protein free). In a separate study, cat and dog ovarian tissues were cultured in protein-free α-MEM and MEM, respectively, in cell culture inserts, on 1.5% agarose gel or in 24-well cell culture plates (control). Follicle viability was assessed in both studies using calcein AM/ethidium homodimer and histological evaluation with haematoxylin/eosin staining. No cat follicle sustained viability beyond 9 days of in vitro culture in α-MEM compared to 37.5% of those incubated for 15 days in MEM in protein-free condition (p < 0.05). In contrast, α-MEM was superior (p < 0.05) to MEM in maintaining dog follicle viability (32.7% vs 8.1%) in protein-free condition at 15 days. Serum was detrimental (p < 0.05) to follicle survival in both species. Knock-out serum replacement supplementation and a protein-free condition supported cat follicle viability, whereas the latter was superior (p < 0.05) to the former for sustaining dog follicle survival. Likewise, dog follicle viability was enhanced (p < 0.05) by the agarose gel compared to the cell culture insert and control groups after 3 and 9 days of culture. For the cat, the agarose gel better (p < 0.05) supported follicle viability compared to the control, but was equivalent to the cell culture insert. Therefore, sustaining primordial follicle survival from intracortical ovarian slices requires a different in vitro microenvironment for the cat vs the dog. A key factor to enhancing survival of these early stage follicles in culture appears to be the use of agarose gel, which enhances follicle viability, perhaps by promoting gas exchange.
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Affiliation(s)
- M Fujihara
- Department of Reproductive Sciences, Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA 22630, USA.
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41
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In vitro culture of equine preantral follicles obtained via the Biopsy Pick-Up method. Theriogenology 2013; 79:911-7. [DOI: 10.1016/j.theriogenology.2013.01.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 12/01/2012] [Accepted: 01/04/2013] [Indexed: 11/20/2022]
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42
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Cunha EV, Costa JJN, Rossi RODS, Silva AWB, Passos JRS, Portela AMLR, Pereira DCST, Donato MAM, Campello CC, Saraiva MVA, Peixoto CA, Silva JRV, Santos RP. Phytohemagglutinin improves the development and ultrastructure of in vitro-cultured goat (Capra hircus) preantral follicles. Braz J Med Biol Res 2013; 46:245-52. [PMID: 23558855 PMCID: PMC3854373 DOI: 10.1590/1414-431x20122702] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 12/14/2012] [Indexed: 11/22/2022] Open
Abstract
The objective this study was to determine the effect of phytohemagglutinin (PHA)
on survival, growth and gene expression in caprine secondary follicles cultured
in vitro. Secondary follicles (∼0.2 mm) were isolated from
the cortex of caprine ovaries and cultured individually for 6 days in
α-MEM+ supplemented with PHA (0, 1, 10, 50, 100, or 200 µg/mL).
After 6 days of culture, follicle diameter and survival, antrum formation,
ultrastructure and expression of mRNA for FSH receptors (FSH-R), proliferating
cell nuclear antigen (PCNA), and neuronal nitric oxide synthase were determined.
All treatments maintained follicular survival [α-MEM+ (94.59%);
1 µg/mL PHA (96.43%); 10 µg/mL PHA (84.85%); 50 µg/mL PHA (85.29%); 100 µg/mL
PHA (88.57%), and 200 µg/mL PHA (87.50)], but the presence of 10 µg/mL PHA in
the culture medium increased the antrum formation rate (21.21%) when compared
with control (5.41%, P < 0.05) and ensured the maintenance of oocyte and
granulosa cell ultrastructures after 6 days of culture. The expression of mRNA
for FSH-R (2.7 ± 0.1) and PCNA (4.4 ± 0.2) was also significantly increased in
follicles cultured with 10 µg/mL PHA in relation to those cultured in
α-MEM+ (1.0 ± 0.1). In conclusion, supplementation of culture
medium with 10 µg/mL PHA maintains the follicular viability and ultrastructure,
and promotes the formation of antral cavity after 6 days of culture in
vitro.
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Affiliation(s)
- E V Cunha
- Núcleo de Biotecnologia de Sobral, NUBIS, Universidade Federal do Ceará, Sobral, CE, Brasil
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Rocha RMP, Lima LF, Alves AMCV, Celestino JJH, Matos MHT, Lima-Verde IB, Bernuci MP, Lopes CAP, Báo SN, Campello CC, Rodrigues APR, Figueiredo JR. Interaction between melatonin and follicle-stimulating hormone promotes in vitro development of caprine preantral follicles. Domest Anim Endocrinol 2013; 44:1-9. [PMID: 22920266 DOI: 10.1016/j.domaniend.2012.07.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 07/18/2012] [Accepted: 07/22/2012] [Indexed: 10/28/2022]
Abstract
The aim of this study was to investigate the effects of melatonin and follicle-stimulating hormone (FSH) on the in vitro culture of goat preantral follicles. Ovarian fragments were cultured for 7 d in α-minimum essential medium (α-MEM(+)) containing melatonin (100, 250, 500, or 1,000 pM), FSH (50 ng/mL), or a combination of the 2 hormones and further analyzed by histology and transmission electron and fluorescent microscopy. The results showed that after 7 d of culture, tissues cultured in α-MEM(+) alone or supplemented with FSH alone, melatonin (500 and 1,000 pM), or the combination of FSH and melatonin (1,000 pM) maintained percentages of normal preantral follicles similar to the fresh control. In contrast to the noncultured tissues, the percentage of developing follicles was increased under all culture conditions after 7 d (P < 0.05). The addition of 1,000 pM melatonin associated with FSH to the culture medium increased follicular and oocyte diameters compared with α-MEM(+) alone after 7 d of culture (P < 0.05). Ultrastructural and fluorescent analyses confirmed the integrity of follicles cultured with 1,000 pM of melatonin plus FSH for 7 d. In conclusion, this study demonstrated that the interaction between melatonin and FSH maintains ultrastructural integrity and stimulates further growth of cultured caprine preantral follicles.
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Affiliation(s)
- R M P Rocha
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocyte and Preantral Follicles, State University of Ceara, 60740-000 Fortaleza CE, Brazil.
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44
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Abstract
The objective of this study was to evaluate the effects of adding ascorbic acid to the media for in vitro culture of cattle ovarian fragments and to determine their effects on growth activation and viability of early-stage follicles. The ovarian cortex was divided into small fragments; one fragment was immediately fixed (control) and the other fragments were cultured in minimum essential medium (MEM) supplemented or not with various doses of ascorbic acid. Ovarian tissue was processed for histology, transmission electron microscopy (TEM) and immunohistochemical demonstration of proliferating cell nuclear antigen (PCNA). Compared with control fragments, the percentage of primordial follicles was reduced (p < 0.05) and the percentage of growing follicles had increased (p < 0.05) in cultured cortical fragments, independent of the tested medium or incubation time. Furthermore, compared with control tissue, culture of ovarian cortex for 8 days reduced the percentages of healthy, viable follicles (p < 0.05), but not when cultures were supplemented with 25, 50 or 100 μg/ml of ascorbic acid. Ultrastructural and immunohistochemical analysis of 8 day cultured ovarian cortical fragments, however, showed the integrity and viability of follicles only when fragments were cultured in presence of 50 μg/ml of ascorbic acid. In conclusion, this study demonstrated that addition of ascorbic acid to MEM at a concentration of 50 μg/ml not only stimulates the activation of 8 day in vitro cultured cattle primordial follicles and subsequent growth of activated follicles, but also safeguards the viability of these early-stage follicles.
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45
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Lima-Verde IB, Matos MH, Celestino JJ, Rossetto R, Name KP, Báo SN, Campello CC, Figueiredo JR. Progesterone and Follicle Stimulating Hormone interact and promote goat preantral follicles survival and development in vitro. PESQUISA VETERINARIA BRASILEIRA 2012. [DOI: 10.1590/s0100-736x2012000400015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the effects of progesterone and follicle stimulating hormone (FSH) on survival and growth of caprine preantral follicles. Pieces of ovarian tissue were cultured for 1 or 7 days in minimum essential medium (MEM) alone or containing progesterone (1, 2.5, 5, 10 or 20ng/mL), FSH (50ng/mL) or the interaction between progesterone and FSH. Fresh (non-cultured control) and cultured ovarian tissues were processed for histological and ultrastructural studies. After 7 days the addition of FSH to all progesterone concentrations maintained the percentage of normal follicles similar to fresh control. At day 7 of culture, a higher percentage of developing follicles was observed only in 2.5ng/ml of progesterone associated with FSH or 10ng/ml of progesterone alone when compared with control. From day 1 to day 7 of culture, a significant increase in the percentage of developing follicles was observed in MEM and 2.5ng/ml of progesterone + FSH. In addition, after 7 days, in all treatments, there was a significant increase in follicular diameter when compared with control, except for MEM alone and in 5ng/ml of progesterone + FSH or 10ng/ml of progesterone alone. Ultrastructural studies confirmed follicular integrity after 7 days of culture in 2.5ng/ml of progesterone with FSH. In conclusion, this study demonstrated that the interaction between progesterone and FSH maintains ultrastructural integrity, stimulates primordial follicles activation and further growth of cultured caprine preantral follicles.
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46
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How the concentration of insulin affects the development of preantral follicles in goats. Cell Tissue Res 2011; 346:451-6. [DOI: 10.1007/s00441-011-1264-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Accepted: 10/04/2011] [Indexed: 10/15/2022]
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Silva AEF, Cavalcante LF, Rodrigues BA, Rodrigues JL. The influence of powdered coconut water (ACP-318®) in in vitro maturation of canine oocytes. Reprod Domest Anim 2011; 45:1042-6. [PMID: 19570146 DOI: 10.1111/j.1439-0531.2009.01487.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: 11/29/2022]
Abstract
The objective of this study was to determine the influence of powdered coconut water (ACP-318(®)) diluted in high glucose (11.0 mM) TCM199 in the achievement of nuclear in vitro maturation (IVM) of canine oocytes. Cumulus oocyte complexes (COCs) (n = 632) were randomly allocated into three experimental groups named as group 1 (control group), group 2 (5% powdered coconut water) and group 3 (10% powdered coconut water). The percentage of meiotic resumption (MR) (GVBD to MII) was 39.1% (81/207), 50.2% (108/215) and 46.6% (98/210) for groups 1, 2 and 3 respectively (p < 0.05). There were no differences in MR rates among groups 2 and 3. The medium with ACP-318(®) slightly enhanced the nuclear maturation of canine oocytes when a comparison was established with rates of maturation exhibited by oocytes in the experimental group 1 without ACP-318(®) (p < 0.05). The results suggest that oocytes' nuclear morphology integrity and meiosis achievement were positively influenced when exposed to high glucose TCM199 supplemented with 5% powdered coconut water. Further investigation must be performed for a better understanding of powdered coconut water influence in cellular events during IVM of dog oocytes.
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Affiliation(s)
- A E F Silva
- Laboratory of Embryology and Biotechnics of Reproduction, Faculty of Veterinary Medicine, UFRGS, Porto Alegre, RS, Brazil
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48
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49
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Celestino JJH, Bruno JB, Saraiva MVA, Rocha RMP, Brito IR, Duarte ABG, Araújo VR, Silva CMG, Matos MHT, Campello CC, Silva JRV, Figueiredo JR. Steady-state level of epidermal growth factor (EGF) mRNA and effect of EGF on in vitro culture of caprine preantral follicles. Cell Tissue Res 2011; 344:539-50. [PMID: 21503599 DOI: 10.1007/s00441-011-1162-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 03/01/2011] [Indexed: 01/27/2023]
Abstract
Our aim was to verify the steady-state level of epidermal growth factor (EGF) mRNA in goat follicles at various developmental stages and to investigate the influence of EGF on the survival, antrum formation and growth of secondary follicles cultured for 6 days. Primordial, primary and secondary goat follicles and small and large antral follicles were obtained to quantify EGF mRNA by real-time reverse transcription with the polymerase chain reaction. The influence of EGF and the presence or absence of follicle-stimulating hormone (FSH) on the development of secondary follicles and on mRNA expression for EGF and FSH receptor (FSH-R) was determined after 6 days of culture. Survival, antrum formation and follicular diameter were evaluated every other day of culture. EGF mRNA levels in secondary follicles were significantly higher than those in primordial follicles, whereas in small and large antral follicles, EGF mRNA levels in cumulus-oocyte complexes (COCs) were significantly higher than in granulosa/theca cells. During culture, EGF in the presence or absence of FSH increased the follicular daily growth rate of secondary follicles when compared with that in enriched alpha minimal essential medium. FSH, EGF or both reduced EGF mRNA levels, whereas EGF reduced FSH-R mRNA levels after follicle culture for 6 days. Thus, EGF mRNA levels are higher in secondary follicles than in earlier stages, with both FSH and EGF promoting the growth of goat secondary follicles. EGF and/or FSH reduce EGF mRNA levels, whereas EGF decreases FSH-R mRNA levels, in cultured secondary follicles.
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50
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Figueiredo JR, Rodrigues APR, Silva JRV, Santos RR. Cryopreservation and in vitro culture of caprine preantral follicles. Reprod Fertil Dev 2011; 23:40-7. [PMID: 21366979 DOI: 10.1071/rd10227] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Preantral follicles (PFs) form a far larger oocyte reservoir (~90% of the follicular population) than antral follicles. Several laboratories have focussed efforts on cryopreservation and in vitro culture (IVC) of PFs to obtain large numbers of fertilisable oocytes. This technology could be used to improve the reproductive potential of economically important animals, including goats, to preserve endangered species and breeds and improve fertility after chemotherapy in young women. Caprine PFs have been successfully cryopreserved using either vitrification or slow freezing. In addition, in vitro embryo production from oocytes enclosed in caprine PFs grown and matured in vitro was also achieved. The present paper selectively reviews the published studies on cryopreservation and IVC of caprine PFs to highlight advances, limitations and prospects.
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