1
|
Gupta P, Johnson P, Kaushik K, Krishna K, Nandi S, Mondal S, Nikhil Kumar Tej J, Somoskoi B, Cseh S. Effect of retinol as antioxidant on the post-thaw viability and the expression of apoptosis and developmental competence-related genes of vitrified preantral follicles in buffalo (Bubalus bubalis). Reprod Domest Anim 2021; 56:1446-1455. [PMID: 34449946 DOI: 10.1111/rda.14009] [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: 06/25/2021] [Accepted: 08/25/2021] [Indexed: 11/30/2022]
Abstract
The present study evaluated the effect of supplementation of retinol in the vitrification solution on the viability, apoptosis and development-related gene expression in vitrified buffalo preantral follicles. Preantral follicles isolated from cortical slices of ovaries were randomly assigned into three groups: Group1-Control fresh preantral follicles; Group 2-Vitrification treatment (Vitrification solution 1 (VS1) -TCM-199 + 25 mM HEPES + Foetal bovine serum (FBS) 10%, Ethylene glycol (EG): 10%, Dimethyl sulphoxide (DMSO): 10%, Sucrose-0.3 M for 4 min; VS2- TCM-199 + 25 mM HEPES + FBS10%, EG:25%, DMSO: 25%, Sucrose:0.3 M for 45 s); Group3-vitrification treatment +5 μM of Retinol. Preantral follicles were placed in corresponding vitrification medium and plunged into liquid nitrogen (-196°C). After a week, the follicles were thawed and analysed for follicular viability and gene expression. There was no significant difference in the viability rates among the Group 1(Fresh preantral follicles) (91.46 ± 2.39%), Group 2 (89.59 ± 2.46%) and Group 3 (87.19 ± 4.05%). There was a significantly (p < .05) higher mRNA expression of BCL2L1, GDF-9 and BMP-15 in the vitrification + retinol group compared with the control group. There was a significantly (p < .05) higher expression of Caspase-3 and Annexin-5 in the vitrification group and Vitrification + retinol group compared with control group of follicles. It is concluded that the supplementation of 5 μM of Retinol in Vitrification solution was an efficient vitrification procedure for the vitrification of buffalo preantral follicles.
Collapse
Affiliation(s)
- Psp Gupta
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - P Johnson
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - K Kaushik
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - K Krishna
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - S Nandi
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - S Mondal
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - J Nikhil Kumar Tej
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - B Somoskoi
- Department and Clinic of Obstetrics & Reproduction, University of Veterinary Medicine, Budapest, Hungary
| | - S Cseh
- Department and Clinic of Obstetrics & Reproduction, University of Veterinary Medicine, Budapest, Hungary
| |
Collapse
|
2
|
Lopes EPF, Rodrigues GQ, de Brito DCC, Rocha RMP, Ferreira ACA, de Sá NAR, Silva RFD, de Alcântara GLH, Alves BG, Figueiredo JRD, Zelinski M, Rodrigues APR. Vitrification of caprine secondary and early antral follicles as a perspective to preserve fertility function. Reprod Biol 2020; 20:371-378. [PMID: 32418820 DOI: 10.1016/j.repbio.2020.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/28/2020] [Accepted: 05/03/2020] [Indexed: 01/09/2023]
Abstract
The present study aimed to evaluate the structure, survival and development of isolated caprine (secondary-SEC and early antral-EANT) follicles, after vitrification in the presence of synthetic polymers and in vitro culture. Additionally, transzonal projections (TZPs) and p450 aromatase enzyme were evaluated. After isolation, SEC and EANT follicles were in vitro cultured for six days or vitrified. After one week, SEC and EANT follicles were warmed and also in vitro cultured for six days. Data revealed that the percentage of morphologically normal follicles was similar between fresh and vitrified follicles in both follicular categories and antrum formation rate was similar between fresh and vitrified SEC follicles. Fluorescence by calcein-AM did not show difference between fresh and vitrified (SEC and EANT) follicles, however, the trypan blue test showed low viability for vitrified follicles. The integrity of TZPs was not affected between fresh and vitrified SEC follicles, however, in vitrified EANT follicles, there were signs of TZPs loss. Regarding steroidogenic function, it was observed a positive staining for p450 aromatase enzyme in fresh and vitrified SEC and EANT follicles. It was concluded that SEC follicles seem to be more resistant to vitrification than EANT follicles, as shown by the trypan blue test and TZPs assay. Future studies may confirm this hypothesis, in order to consolidate the use of SEC and EANT follicles as an alternative to ovary cryopreservation.
Collapse
Affiliation(s)
- Everton Pimentel Ferreira Lopes
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Giovanna Quintino Rodrigues
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Danielle Cristina Calado de Brito
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | | | - Anna Clara Accioly Ferreira
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Naíza Arcângela Ribeiro de Sá
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Renato Félix da Silva
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Gabriel Las Heras de Alcântara
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | | | - José Ricardo de Figueiredo
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Mary Zelinski
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR, USA
| | - Ana Paula Ribeiro Rodrigues
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil.
| |
Collapse
|
3
|
Raman spectroscopy-based approach to study the female gamete. Theriogenology 2020; 150:268-275. [PMID: 32088036 DOI: 10.1016/j.theriogenology.2020.01.059] [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: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 11/20/2022]
Abstract
In the last years, an increasing interest has emerged on the development of new non-invasive methods for the assessment of oocyte quality in order to improve outcomes of assisted reproductive technologies (ARTs) either in medical or veterinary fields. Raman microspectroscopy (RMS) has been proposed as a promising tool for the examination of the mammalian female gamete and identification of markers of its developmental competence. This technique provides a unique spectral fingerprint indicative of molecular composition of the cell and allows probing subcellular compartments. Studies have been carried out analysing by RMS fixed or living oocytes derived from different animal models. RMS imaging has been successfully applied to discriminate the biochemical changes of the global molecular architecture of mouse oocytes at different stages of maturation and those occurring in different conditions of maturation and oocyte aging. RMS can also detect modifications of specific structural components, including the oocyte zona pellucida and F-actin subcortical cytoskeleton in fresh sheep oocytes and those underwent to vitrification procedures. Finally, the recent application of Coherent anti-Stokes Raman scattering (CARS) microscopy for examination of oocyte lipid component will be briefly discussed. CARS overcomes some limits of RMS providing vibrational and spectral information with higher sensitivity, spatial resolution which is ideal to study living oocytes. This review summarizes the research on RMS approaches for oocyte evaluation showing the high potential use, current limitations and new improvements.
Collapse
|
4
|
Giolo E, Martinelli M, Luppi S, Romano F, Ricci G, Lazzarino M, Andolfi L. Study of the mechanical properties of fresh and cryopreserved individual human oocytes. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2019; 48:585-592. [PMID: 31230258 DOI: 10.1007/s00249-019-01379-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 03/05/2019] [Accepted: 06/17/2019] [Indexed: 01/02/2023]
Abstract
In assisted reproduction technologies, the cryopreservation of oocytes is a common procedure used to circumvent female infertility. However, some morphological and functional alterations of oocytes have been observed depending on the protocol applied. In this work, the mechanical response of individual human oocytes before and after a freeze-thawing procedure was characterised. Oocytes, immediately after retrieval, were morphologically evaluated by bright-field optical microscopy and their elasticity measured by indentation measurements using atomic force microscopy. Oocytes were then frozen according to the open-vitrification protocol and stored in liquid nitrogen. Afterwards, the same oocytes were thawed and the indentation measurements repeated. Using this approach, we can follow the elasticity of a set of single oocytes from retrieval up to the freeze-thawing procedure. The analysis of the resulting data shows that the retrieved healthy oocytes, which preserve their healthy morphological features after cryopreservation, maintain unchanged also in stiffness values. In contrast, oocytes having dysmorphic characteristics, before and/or after freeze-thawing, show significant variations in their mechanical response. In addition, the dysmorphic oocytes are generally observed to be softer than the healthy oocytes. Our results indicate that stiffness of healthy oocytes is not considerably affected by the open-vitrification-thawing procedure, and that distinct elasticity ranges can be identified for healthy and dysmorphic oocytes. These findings indicate that the mechanical characterization of oocytes represents an opportunity to detect cellular defects, and assess the quality and bio-viability of processes such as cryopreservation.
Collapse
Affiliation(s)
- Elena Giolo
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
| | - Monica Martinelli
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
| | - Stefania Luppi
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
| | - Federico Romano
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
| | - Giuseppe Ricci
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy. .,Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy.
| | - Marco Lazzarino
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Basovizza, 34149, Trieste, Italy
| | - Laura Andolfi
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Basovizza, 34149, Trieste, Italy.
| |
Collapse
|
5
|
Amstislavsky S, Mokrousova V, Brusentsev E, Okotrub K, Comizzoli P. Influence of Cellular Lipids on Cryopreservation of Mammalian Oocytes and Preimplantation Embryos: A Review. Biopreserv Biobank 2019; 17:76-83. [PMID: 30256133 DOI: 10.1089/bio.2018.0039] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Sergei Amstislavsky
- Department of Cryopreservation and Reproductive Technologies, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Valentina Mokrousova
- Department of Cryopreservation and Reproductive Technologies, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Eugeny Brusentsev
- Department of Cryopreservation and Reproductive Technologies, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Konstantin Okotrub
- Laboratory of Condensed Matter, Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Pierre Comizzoli
- Center of Species Survival, Smithsonian Conservation Biology Institute, Smithsonian National Zoological Park, Washington, District of Columbia
| |
Collapse
|
6
|
Moawad M, Hussein HA, Abd El-Ghani M, Darwish G, Badr M. Effects of cryoprotectants and cryoprotectant combinations on viability and maturation rates of Camelus dromedarius
oocytes vitrified at germinal vesicle stage. Reprod Domest Anim 2018; 54:108-117. [DOI: 10.1111/rda.13319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/14/2018] [Indexed: 01/26/2023]
Affiliation(s)
- Moustafa Moawad
- Theriogenology Department, Faculty of Veterinary Medicine; Assiut University; Assiut Egypt
| | - Hassan A. Hussein
- Theriogenology Department, Faculty of Veterinary Medicine; Assiut University; Assiut Egypt
| | - Mohamed Abd El-Ghani
- Theriogenology Department, Faculty of Veterinary Medicine; Assiut University; Assiut Egypt
| | - Gamal Darwish
- A.I and E.T. Department; Animal Reproduction Research Institute; Giza Egypt
| | - Magdy Badr
- A.I and E.T. Department; Animal Reproduction Research Institute; Giza Egypt
| |
Collapse
|
7
|
Raman-microscopy investigation of vitrification-induced structural damages in mature bovine oocytes. PLoS One 2017; 12:e0177677. [PMID: 28531193 PMCID: PMC5439703 DOI: 10.1371/journal.pone.0177677] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 04/30/2017] [Indexed: 12/27/2022] Open
Abstract
Although oocyte cryopreservation has great potentials in the field of reproductive technologies, it still is an open challenge in the majority of domestic animals and little is known on the biochemical transformation induced by this process in the different cellular compartments. Raman micro-spectroscopy allows the non-invasive evaluation of the molecular composition of cells, based on the inelastic scattering of laser photons by vibrating molecules. The aim of this work was to assess the biochemical modifications of both the zona pellucida and cytoplasm of vitrified/warmed in vitro matured bovine oocytes at different post-warming times. By taking advantage of Principal Component Analysis, we were able to shed light on the biochemical transformation induced by the cryogenic treatment, also pointing out the specific role of cryoprotective agents (CPs). Our results suggest that vitrification induces a transformation of the protein secondary structure from the α-helices to the β-sheet form, while lipids tend to assume a more packed configuration in the zona pellucida. Both modifications result in a mechanical hardening of this cellular compartment, which could account for the reduced fertility rates of vitrified oocytes. Furthermore, biochemical modifications were observed at the cytoplasmic level in the protein secondary structure, with α-helices loss, suggesting cold protein denaturation. In addition, a decrease of lipid unsaturation was found in vitrified oocytes, suggesting oxidative damages. Interestingly, most modifications were not observed in oocytes exposed to CPs, suggesting that they do not severely affect the biochemical architecture of the oocyte. Nevertheless, in oocytes exposed to CPs decreased developmental competence and increased reactive oxygen species production were observed compared to the control. A more severe reduction of cleavage and blastocyst rates after in vitro fertilization was obtained from vitrified oocytes. Our experimental outcomes also suggest a certain degree of reversibility of the induced transformations, which renders vitrified oocytes more similar to untreated cells after 2 h warming.
Collapse
|
8
|
Vitrification of immature and in vitro matured bovine cumulus-oocyte complexes: Effects on oocyte structure and embryo development. Livest Sci 2017. [DOI: 10.1016/j.livsci.2017.02.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
9
|
El-Shalofy AS, Moawad AR, Darwish GM, Ismail ST, Badawy AB, Badr MR. Effect of different vitrification solutions and cryodevices on viability and subsequent development of buffalo oocytes vitrified at the germinal vesicle (GV) stage. Cryobiology 2017; 74:86-92. [DOI: 10.1016/j.cryobiol.2016.11.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/18/2016] [Accepted: 11/23/2016] [Indexed: 11/16/2022]
|
10
|
Chaves DF, Campelo IS, Silva MMAS, Bhat MH, Teixeira DIA, Melo LM, Souza-Fabjan JMG, Mermillod P, Freitas VJF. The use of antifreeze protein type III for vitrification of in vitro matured bovine oocytes. Cryobiology 2016; 73:324-328. [PMID: 27729221 DOI: 10.1016/j.cryobiol.2016.10.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/30/2016] [Accepted: 10/07/2016] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate the use of antifreeze protein type III (AFP III) into vitrification medium on meiotic spindle morphology of in vitro matured bovine oocytes as well as the fertilization and blastocyst rates. Mature cumulus-oocyte complexes (COC) were distributed in four groups: control (untreated), vitrified without supplementation (AFP0) or supplemented with 500 (AFP500) or 1000 ng/mL (AFP1000) into vitrification solutions. Samples from each group were used to analyze the organization of meiotic spindle by confocal microscopy and the remaining COC were submitted to in vitro fertilization and culture for eight days. Control group exhibited only 15% of abnormal spindle. However, the spindle morphology was affected in all vitrified groups regardless to AFP concentration: 75.8%, 76.1% and 69.2% (P > 0.05) for AFP0, AFP500 and AFP1000, respectively. Similar cleavage rate was obtained among the vitrified groups (AFP0 = 17.9%, AFP500 = 16.9% and AFP1000 = 17.8%), but lower (P < 0.05) compared with control group (68.7%). At Day 5 of culture, embryo production rate of AFP500 (30.8%) and AFP1000 (25.0%) were similar to control group (49.4%). However, at Day 8 of culture, AFP0, AFP500 and AFP1000 groups exhibited lower (P < 0.05) blastocyst rates (10.0%, 3.8% and 9.4%, respectively) when compared to control (41.1%). In conclusion, AFP III did not preserve meiotic spindle organization against the cryoinjuries. However, the use of AFP III improved embryo development at Day 5 of culture, although this effect was not maintained up to the blastocyst formation.
Collapse
Affiliation(s)
- Dowglish F Chaves
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil
| | - Iana S Campelo
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil
| | - Mirelly M A S Silva
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil
| | - Maajid H Bhat
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil
| | - Darcio I A Teixeira
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil
| | - Luciana M Melo
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil
| | | | - Pascal Mermillod
- INRA, Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Vicente J F Freitas
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, CE, Brazil.
| |
Collapse
|
11
|
Overexpression of signal transducers and activators of transcription in embryos derived from vitrified oocytes negatively affect E-cadherin expression and embryo development. Cryobiology 2015; 70:239-45. [DOI: 10.1016/j.cryobiol.2015.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 12/24/2014] [Accepted: 03/09/2015] [Indexed: 01/07/2023]
|
12
|
Cryopreservation of mammalian oocytes and embryos: current problems and future perspectives. SCIENCE CHINA-LIFE SCIENCES 2014; 57:903-14. [DOI: 10.1007/s11427-014-4689-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/03/2014] [Indexed: 01/19/2023]
|
13
|
Effect of meiotic status, cumulus cells and cytoskeleton stabilizer on the developmental competence of ovine oocytes following vitrification. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2014.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
14
|
Recent progress in cryopreservation of bovine oocytes. BIOMED RESEARCH INTERNATIONAL 2014; 2014:570647. [PMID: 24738063 PMCID: PMC3971499 DOI: 10.1155/2014/570647] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 01/20/2014] [Indexed: 12/18/2022]
Abstract
Principle of oocyte cryoinjury is first overviewed and then research history of cryopreservation using bovine oocytes is summarized for the last two decades with a few special references to recent progresses. Various types of cryodevices have been developed to accelerate the cooling rate and applied to the oocytes from large domestic species enriched with cytoplasmic lipid droplets. Two recent approaches include the qualitative improvement of IVM oocytes prior to the vitrification and the short-term recovery culture of vitrified-warmed oocytes prior to the subsequent IVF. Supplementation of L-carnitine to IVM medium of bovine oocytes has been reported to reduce the amount of cytoplasmic lipid droplets and improve the cryotolerance of the oocytes, but it is still controversial whether the positive effect of L-carnitine is reproducible. Incidence of multiple aster formation, a possible cause for low developmental potential of vitrified-warmed bovine oocytes, was inhibited by a short-term culture of the postwarm oocytes in the presence of Rho-associated coiled-coil kinase (ROCK) inhibitor. Use of an antioxidant α-tocopherol, instead of the ROCK inhibitor, also supported the revivability of the postwarm bovine oocytes. Further improvements of the vitrification procedure, combined with pre- and postvitrification chemical treatment, would overcome the high sensitivity of bovine oocytes to cryopreservation.
Collapse
|
15
|
Jiménez-Trigos E, Vicente JS, Marco-Jiménez F. Live birth from slow-frozen rabbit oocytes after in vivo fertilisation. PLoS One 2013; 8:e83399. [PMID: 24358281 PMCID: PMC3866232 DOI: 10.1371/journal.pone.0083399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 11/12/2013] [Indexed: 02/03/2023] Open
Abstract
In vivo fertilisation techniques such as intraoviductal oocyte transfer have been considered as alternatives to bypass the inadequacy of conventional in vitro fertilisation in rabbit. There is only one study in the literature, published in 1989, that reports live offspring from cryopreserved rabbit oocytes. The aim of the present study was to establish the in vivo fertilisation procedure to generate live offspring with frozen oocytes. First, the effect of two recipient models (i) ovariectomised or (ii) oviduct ligated immediately after transfer on the ability of fresh oocytes to fertilise were compared. Second, generation of live offspring from slow-frozen oocytes was carried out using the ligated oviduct recipient model. Throughout the experiment, recipients were artificially inseminated 9 hours prior to oocyte transfer. In the first experiment, two days after unilateral transfer of fresh oocytes, oviducts and uterine horns were flushed to assess embryo recovery rates. The embryo recovery rates were low compared to control in both ovariectomised and ligated oviduct groups. However, ligated oviduct recipient showed significantly (P<0.05) higher embryo recovery rates compared to ovariectomised and control-transferred. In the second experiment, using bilateral oviduct ligation model, all females that received slow-frozen oocytes became pregnant and delivered a total of 4 live young naturally. Thus, in vivo fertilisation is an effective technique to generate live offspring using slow-frozen oocytes in rabbits.
Collapse
Affiliation(s)
- Estrella Jiménez-Trigos
- Institute of Science and Animal Technology, Laboratorio de Biotecnología de la Reproducción, Universitat Politècnica de València, Valencia, Spain
| | - José S. Vicente
- Institute of Science and Animal Technology, Laboratorio de Biotecnología de la Reproducción, Universitat Politècnica de València, Valencia, Spain
| | - Francisco Marco-Jiménez
- Institute of Science and Animal Technology, Laboratorio de Biotecnología de la Reproducción, Universitat Politècnica de València, Valencia, Spain
| |
Collapse
|
16
|
Somfai T, Nakai M, Tanihara F, Noguchi J, Kaneko H, Kashiwazaki N, Egerszegi I, Nagai T, Kikuchi K. Comparison of ethylene glycol and propylene glycol for the vitrification of immature porcine oocytes. J Reprod Dev 2013; 59:378-84. [PMID: 23666455 PMCID: PMC3944359 DOI: 10.1262/jrd.2013-015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Our aim was to optimize a cryoprotectant treatment for vitrification of immature porcine cumulus-oocyte complexes (COCs). Immature COCs were vitrified either in 35% ethylene glycol (EG), 35% propylene glycol (PG) or a combination of 17.5% EG and 17.5% PG. After warming, the COCs were in vitro matured (IVM), and surviving oocytes were in vitro fertilized (IVF) and cultured. The mean survival rate of vitrified oocytes in 35% PG (73.9%) was higher (P<0.05) than that in 35% EG (27.8%). Oocyte maturation rates did not differ among vitrified and non-vitrified control groups. Blastocyst formation in the vitrified EG group (10.8%) was higher (P<0.05) than that in the vitrified PG group (2.0%) but was lower than that in the control group (25.0%). Treatment of oocytes with 35% of each cryoprotectant without vitrification revealed a higher toxicity of PG on subsequent blastocyst development compared with EG. The combination of EG and PG resulted in 42.6% survival after vitrification. The maturation and fertilization rates of the surviving oocytes were similar in the vitrified, control and toxicity control (TC; treated with EG+PG combination without cooling) groups. Blastocyst development in the vitrified group was lower (P<0.05) than that in the control and TC groups, which in turn had similar development rates (10.7%, 18.1% and 23.3%, respectively). In conclusion, 35% PG enabled a higher oocyte survival rate after vitrification compared with 35% EG. However, PG was greatly toxic to oocytes. The combination of 17.5% EG and 17.5% PG yielded reasonable survival rates without toxic effects on embryo development.
Collapse
Affiliation(s)
- Tamás Somfai
- NARO Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Mara L, Casu S, Carta A, Dattena M. Cryobanking of farm animal gametes and embryos as a means of conserving livestock genetics. Anim Reprod Sci 2013; 138:25-38. [PMID: 23477753 DOI: 10.1016/j.anireprosci.2013.02.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 11/30/2012] [Accepted: 02/09/2013] [Indexed: 01/12/2023]
Abstract
In the last few decades, farm animal genetic diversity has rapidly declined, mainly due to changing market demands and intensification of agriculture. But, since the removal of single species can affect the functioning of global ecosystems, it is in the interest of international community to conserve the livestock genetics and to maintain biodiversity. Increasing awareness on the reduction of breed diversity has prompted global efforts for conservation of farm animal breeds. The goals of conservation are to keep genetic variation as gene combinations in a reversible form and to keep specific genes of interest. For this purpose two types of strategies are usually proposed: in situ and ex situ conservation. In situ conservation is the breed maintaining within the livestock production system, in its environment through the enhancement of its production characteristics. Ex situ in vivo conservation is the safeguard of live animals in zoos, wildlife parks, experimental farms or other specialized centres. Ex situ in vitro conservation is the preservation of genetic material in haploid form (semen and oocytes), diploid (embryos) or DNA sequences. In the last few years, ex situ in vitro conservation programs of livestock genetic resources have focused interest on cryopreservation of gametes, embryos and somatic cells as well as testis and ovarian tissues, effectively lengthening the genetic lifespan of individuals in a breeding program even after the death. However, although significant progress has been made in semen, oocytes and embryo cryopreservation of several domestic species, a standardized procedure has not been established yet. The aim of the present review is to describe the cryobanking purposes, the collection goals, the type of genetic material to store and the reproductive biotechnologies utilized for the cryopreservation of farm animal gametes and embryos.
Collapse
Affiliation(s)
- L Mara
- Agris-Sardegna, DIRPA, Reproduction Division, S.S. 291 Km 18.6, 07100 Sassari, Italy.
| | - Sara Casu
- Agris-Sardegna, DIRPA, Genetic and biotechnology division, S.S. 291 Km 18.6, 07100 Sassari, Italy
| | - A Carta
- Agris-Sardegna, DIRIP, Production and Technology Division, Italy
| | - M Dattena
- Agris-Sardegna, DIRPA, Reproduction Division, S.S. 291 Km 18.6, 07100 Sassari, Italy
| |
Collapse
|
18
|
Moawad AR, Zhu J, Choi I, Amarnath D, Chen W, Campbell KHS. Production of good-quality blastocyst embryos following IVF of ovine oocytes vitrified at the germinal vesicle stage using a cryoloop. Reprod Fertil Dev 2013; 25:1204-15. [DOI: 10.1071/rd12215] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 11/30/2012] [Indexed: 11/23/2022] Open
Abstract
The cryopreservation of immature oocytes at the germinal vesicle (GV) stage would create an easily accessible, non-seasonal source of female gametes for research and reproduction. The present study investigated the ability of ovine oocytes vitrified at the GV stage using a cryoloop to be subsequently matured, fertilised and cultured in vitro to blastocyst-stage embryos. Selected cumulus–oocyte complexes obtained from mature ewes at the time of death were randomly divided into vitrified, toxicity and control groups. Following vitrification and warming, viable oocytes were matured in vitro for 24 h. Matured oocytes were either evaluated for nuclear maturation, spindle and chromosome configuration or fertilised and cultured in vitro for 7 days. No significant differences were observed in the frequencies of IVM (oocytes at the MII stage), oocytes with normal spindle and chromatin configuration and fertilised oocytes among the three groups. Cleavage at 24 and 48 h post insemination was significantly decreased (P < 0.01) in vitrified oocytes. No significant differences were observed in the proportion of blastocyst development between vitrified and control groups (29.4% v. 45.1%, respectively). No significant differences were observed in total cell numbers, the number of apoptotic nuclei or the proportion of diploid embryos among the three groups. In conclusion, we report for the first time that ovine oocytes vitrified at the GV stage using a cryoloop have the ability to be matured, fertilised and subsequently developed in vitro to produce good-quality blastocyst embryos at frequencies comparable to those obtained using fresh oocytes.
Collapse
|
19
|
Moawad AR, Fisher P, Zhu J, Choi I, Polgar Z, Dinnyes A, Campbell KH. In vitro fertilization of ovine oocytes vitrified by solid surface vitrification at germinal vesicle stage. Cryobiology 2012; 65:139-44. [DOI: 10.1016/j.cryobiol.2012.04.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/23/2012] [Accepted: 04/23/2012] [Indexed: 10/28/2022]
|
20
|
Prentice-Biensch JR, Singh J, Mapletoft RJ, Anzar M. Vitrification of immature bovine cumulus-oocyte complexes: effects of cryoprotectants, the vitrification procedure and warming time on cleavage and embryo development. Reprod Biol Endocrinol 2012; 10:73. [PMID: 22954348 PMCID: PMC3814649 DOI: 10.1186/1477-7827-10-73] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 08/30/2012] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The present studies evaluated the effects of cryoprotectants, the vitrification procedure and time in the warming solution containing sucrose on cleavage and embryo development of immature (GV stage) bovine cumulus-oocyte complexes (COCs). METHODS Two experiments were conducted. In Experiment 1, COCs (n = 420) were randomly assigned to four groups: 1) CONTROL GROUP: no treatment; 2) VS1 group: COCs were exposed to vitrification solution 1 (VS1) containing 7.5% ethylene glycol [EG] + 7.5% dimethyl sulfoxide [DMSO] + 20% calf serum [CS] in TCM-199 at 37 C for 5 min; 3) VS1 + VS2 group: COCs were exposed to VS1 for 5 min followed by VS2 (15% EG + 15% DMSO + 17.1% sucrose + 20% CS) at 37 C for 45-60 sec; and 4) Vitrified group: COCs were exposed to VS1 and VS2, loaded on cryotops, vitrified in liquid nitrogen and then warmed in TCM-199 + 17.1% sucrose + 20% CS at 37 C for 1 min. In Experiment 2, COCs (n = 581) were assigned to the same groups, but those in VS1, VS1 + VS2 and Vitrified groups were sub-divided and exposed to the warming solution for either 1 or 5 min. After treatment and/or warming, all COCs in both experiments underwent in vitro maturation, in vitro fertilization and in vitro culture. RESULTS Cleavage and blastocyst rates did not differ among Control, VS1 and VS1 + VS2 groups in either experiment. In Experiment 2, there was no effect of time in the warming solution.However, both cleavage and blastocyst rates were lower (P < 0.001) in the Vitrified group than in the Control, VS1 and VS1 + VS2 groups (40.9 and 1.6% vs 92.2 and 34.4%, 79.4 and 25.2%, and 80.2 and 20.8%, respectively in Experiment 1, and 25.0 and 1.7% vs 75.3 and 27.2%, 67.9 and 19.5%, and 62.7 and 22.5%, respectively in Experiment 2). CONCLUSIONS The permeating cryoprotectants (EG and DMSO) present in VS1 and VS2 solutions and the time in the warming solution containing sucrose had no adverse effects on cleavage and blastocyst rates of immature bovine COCs. However, cleavage rate and early embryo development were reduced following the vitrification and warming.
Collapse
Affiliation(s)
- Jennifer R Prentice-Biensch
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan, Canada
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatchewan, Saskatoon, Canada
| | - Jaswant Singh
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatchewan, Saskatoon, Canada
| | - Reuben J Mapletoft
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatchewan, Saskatoon, Canada
| | - Muhammad Anzar
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan, Canada
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatchewan, Saskatoon, Canada
| |
Collapse
|
21
|
Effect of slow freeze versus vitrification on the oocyte: an animal model. Fertil Steril 2012; 98:752-760.e3. [DOI: 10.1016/j.fertnstert.2012.05.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 05/23/2012] [Accepted: 05/23/2012] [Indexed: 11/22/2022]
|
22
|
Developmental competence of ovine oocyte following vitrification: effect of oocyte developmental stage, cumulus cells, cytoskeleton stabiliser, FBS concentration, and equilibration time. ZYGOTE 2012; 22:165-73. [DOI: 10.1017/s096719941200038x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryThe aim of the present study was to examine the effects of fetal bovine serum (FBS) concentration, equilibration time, and oocyte pre-treatment with cytochalasin B (CCB) on subsequent development of vitrified-warmed ovine immature (GVCOCs) and matured (MII) oocytes with (MIICOCs) or without cumulus cells (MIIDOs). In Experiment 1, the effects of FBS concentrations (10 and 20%) during the vitrification-warming procedure were examined. Survival rates after warming were not different between GVCOCs, MIICOCs and MIIDOs oocytes. After in vitro fertilization, rate of cleaved embryos in MIICOCs group at the presence of 20%FBS was higher than MIIDOs and GVCOCs groups. In Experiment 2, the effects of equilibration times (5, 7, and 10 min) were examined. There was no difference in survival rate of vitrified-warmed oocytes equilibrated at different times. Although, the rate of cleavage in MIICOCs and MIIDOs oocytes equilibrated for 10 and 7 min, respectively, was higher than 5 min equilibrated MIIDOs and 7 and 10 min equilibrated GVCOCs oocytes. In Experiment 3, the effects of oocyte pre-treatment with CCB were examined. Despite the insignificant difference in survival rate of vitrified-warmed ovine immature and matured oocytes, the rates of cleavage in CCB pretreated groups were significantly lower than untreated groups. Moreover, the blastocysts were only derived from those cumulus enclosed vitrified-warmed germinal vesicle (GV) and MII oocytes that had been exposed to 10% FBS in the absence of CCB. In conclusion, the presence of cumulus cells, 10% FBS, and the omission of CCB were beneficial for post-warming development of vitrified ovine oocytes.
Collapse
|
23
|
Spinaci M, Vallorani C, Bucci D, Tamanini C, Porcu E, Galeati G. Vitrification of pig oocytes induces changes in histone H4 acetylation and histone H3 lysine 9 methylation (H3K9). Vet Res Commun 2012; 36:165-71. [DOI: 10.1007/s11259-012-9527-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2012] [Indexed: 11/30/2022]
|
24
|
Díez C, Muñoz M, Caamaño JN, Gómez E. Cryopreservation of the Bovine Oocyte: Current Status and Perspectives. Reprod Domest Anim 2012; 47 Suppl 3:76-83. [DOI: 10.1111/j.1439-0531.2012.02029.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
25
|
Fernández-Reyez F, Ducolomb Y, Romo S, Casas E, Salazar Z, Betancourt M. Viability, maturation and embryo development in vitro of immature porcine and ovine oocytes vitrified in different devices. Cryobiology 2012; 64:261-6. [DOI: 10.1016/j.cryobiol.2012.02.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 01/04/2012] [Accepted: 02/09/2012] [Indexed: 10/28/2022]
|
26
|
Raman microspectroscopy as a non-invasive tool to assess the vitrification-induced changes of ovine oocyte zona pellucida. Cryobiology 2012; 64:267-72. [PMID: 22387147 DOI: 10.1016/j.cryobiol.2012.02.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 02/14/2012] [Accepted: 02/15/2012] [Indexed: 11/20/2022]
Abstract
Cryopreservation-induced modifications of zona pellucida (ZP) have been explored to a lesser extent compared to other oocyte compartments. Different methods have been applied to identify ZP changes, but most of them are invasive and measure only few properties of ZP. Raman microspectroscopy (RMS) is a powerful technique for studying the molecular composition of cells but to date few studies have been performed on the oocytes using this method. The aim of the present study is to investigate the structural modifications of ZP of vitrified/warmed in vitro matured ovine oocytes by means of RMS. Cumulus-oocyte complexes were recovered from the ovaries of slaughtered adult sheep, matured in vitro and vitrified following the Minimum Essential Volume method using cryotops. ZPs of vitrified/warmed oocytes (VITRI), were exposed to vitrification solutions but not cryopreserved (CPA-exp) and untreated oocytes (CTR) were analyzed by RMS. We focused our analysis on the ZP protein and carbohydrate components by analyzing the 1230-1300 cm(-1) amide III region and the 1020-1140 cm(-1) spectral range in RMS spectra, respectively. The spectral profiles in the ranges of proteins and carbohydrates were comparable between CTR and CPA-exp ZPs, whereas VITRI ZPs showed a significantly altered protein secondary structure characterized by an increase in β-sheet content and a decrease in the α-helix content. A significant modification of the carbohydrate components was also observed. This study demonstrates that vitrification of ovine oocytes induces biochemical changes of ZP related to the secondary structure of proteins and carbohydrate residues. Cryoprotectants do not strongly alter the molecular composition of ZP which is affected mainly by cooling. Raman technology offers a powerful and non-invasive tool to assess molecular modifications induced by cryopreservation in oocytes.
Collapse
|
27
|
Combelles CMH, Ceyhan ST, Wang H, Racowsky C. Maturation outcomes are improved following Cryoleaf vitrification of immature human oocytes when compared to choline-based slow-freezing. J Assist Reprod Genet 2011; 28:1183-92. [PMID: 22089264 DOI: 10.1007/s10815-011-9674-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 11/02/2011] [Indexed: 10/15/2022] Open
Abstract
PURPOSE The cryopreservation of immature oocytes permits oocyte banking for patients at risk of losing their fertility. However, the optimum protocol for such fertility preservation remains uncertain. METHODS The present study investigated the survival, maturation, cytoskeletal and chromosome organization of sibling immature oocytes leftover from controlled ovarian stimulation cycles, that were either slow-frozen (with choline-substitution) or vitrified. A comparison group included oocytes that were never cryopreserved. RESULTS Among the three groups, comparable rates were observed for both survival (67-70%) and polar body extrusion (59-79%). Significantly more oocytes underwent spontaneous activation after IVM following slow-freezing compared with either vitrification or no cryopreservation. Likewise, the incidence of spindle abnormalities was greatest in the slow-frozen group, with no differences in spindle morphometrics or chromosome organization. CONCLUSIONS While the overall incidence of mature oocytes with normal bipolar spindles from warmed immature oocytes was low, the yield using Cryoleaf vitrification was slightly superior to choline-based slow-freezing.
Collapse
|
28
|
Jiménez-Trigos E, Naturil-Alfonso C, Vicente JS, Marco-Jiménez F. Effects of cryopreservation on the meiotic spindle, cortical granule distribution and development of rabbit oocytes. Reprod Domest Anim 2011; 47:472-8. [PMID: 22497624 DOI: 10.1111/j.1439-0531.2011.01906.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Although much progress has been made in oocyte cryopreservation since 1971, live offspring have only been obtained in a few species and in rabbits. The aim of our study was to evaluate the effect of vitrification and slow freezing on the meiotic spindle, cortical granule (CG) distribution and their developmental competence. Oocytes were vitrified in 16.84% ethylene glycol, 12.86% formamide, 22.3% dimethyl sulphoxide, 7% PVP and 1% of synthetic ice blockers using Cryotop as device or slow freezing in 1.5 m PROH and 0.2 m sucrose in 0.25 ml sterile French mini straws. Meiotic spindle and CG distribution were assessed using a confocal laser-scanning microscope. To determine oocyte competence, in vitro development of oocytes from each cryopreservation procedure was assessed using parthenogenesis activation. Our data showed that oocytes were significantly affected by both cryopreservation procedures. In particular, meiotic spindle organization was dramatically altered after cryopreservation. Oocytes with peripheral CG distribution have a better chance of survival in cryopreservation after slow-freezing procedures compared to vitrification. In addition, slow freezing of oocytes led to higher cleavage and blastocyst rates compared to vitrification. Our data showed that, in rabbits, structural alterations are more evident in vitrified oocytes than in slow-frozen oocytes, probably as a consequence of sensitivity to high levels of cryoprotectants. Slow-freezing method is currently the recommended option for rabbit oocyte cryopreservation.
Collapse
Affiliation(s)
- E Jiménez-Trigos
- Institute of Science and Animal Technology, Laboratorio de Biotecnología de la Reproducción, Universidad Politécnica de Valencia, Valencia, Spain
| | | | | | | |
Collapse
|
29
|
Effects of reproductive aging and postovulatory aging on the maintenance of biological competence after oocyte vitrification: insights from the mouse model. Theriogenology 2011; 76:864-73. [PMID: 21705053 DOI: 10.1016/j.theriogenology.2011.04.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 04/19/2011] [Accepted: 04/20/2011] [Indexed: 11/22/2022]
Abstract
Cryopreservation of female reproductive cells allows preservation of fertility and provides materials for research. Although freezing protocols have been optimized, and there is a high survival rate after thawing, the in vitro fertilization (IVF) pregnancy rate is still lower in cycles with cryopreserved oocytes, thus highlighting the importance of identifying intrinsic limiting factors characterizing the cells at time of freezing. The aim of the present study is to investigate in the mouse model the impact of reproductive aging and postovulatory aging on oocyte biological competence after vitrification. Metaphase II oocytes were vitrified soon after retrieval from young and reproductively old mice. Part of the oocytes from young animals was vitrified after 6 h incubation (in vitro aged oocytes). All classes of oocytes showed similar survival rate after vitrification. Moreover, vitrification did not alter chromosomal organization in young cells, whereas in vitro aged and old oocytes presented an increase of slightly aberrant metaphase configurations. Compared to fresh young oocytes, in vitro aged and old oocytes showed increased ROS levels which remained unchanged after vitrification. By contrast, cryopreservation significantly increased ROS production in young oocytes. Both the aging processes negatively impacted oocyte ability to undergo pronucleus formation and first cleavage after vitrification by stimulating cellular fragmentation. These results could be helpful for establishing the correct time table for cryopreservation in the laboratory routine and improving its application in reproductively old females. Moreover, our observations highlight the importance of oxidative stress protection during vitrification procedures.
Collapse
|
30
|
Prentice J, Singh J, Dochi O, Anzar M. Factors affecting nuclear maturation, cleavage and embryo development of vitrified bovine cumulus-oocyte complexes. Theriogenology 2011; 75:602-9. [DOI: 10.1016/j.theriogenology.2010.09.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 09/11/2010] [Accepted: 09/29/2010] [Indexed: 10/18/2022]
|
31
|
Succu S, Berlinguer F, Leoni GG, Bebbere D, Satta V, Marco-Jimenez F, Pasciu V, Naitana S. Calcium concentration in vitrification medium affects the developmental competence of in vitro matured ovine oocytes. Theriogenology 2011; 75:715-21. [DOI: 10.1016/j.theriogenology.2010.10.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Revised: 10/07/2010] [Accepted: 10/10/2010] [Indexed: 10/18/2022]
|
32
|
Yang CR, Miao DQ, Zhang QH, Guo L, Tong JS, Wei Y, Huang X, Hou Y, Schatten H, Liu Z, Sun QY. Short-term preservation of porcine oocytes in ambient temperature: novel approaches. PLoS One 2010; 5:e14242. [PMID: 21151922 PMCID: PMC2998415 DOI: 10.1371/journal.pone.0014242] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2010] [Accepted: 11/15/2010] [Indexed: 11/28/2022] Open
Abstract
The objective of this study was to evaluate the feasibility of preserving porcine oocytes without freezing. To optimize preservation conditions, porcine cumulus-oocyte complexes (COCs) were preserved in TCM-199, porcine follicular fluid (pFF) and FCS at different temperatures (4°C, 20°C, 25°C, 27.5°C, 30°C and 38.5°C) for 1 day, 2 days or 3 days. After preservation, oocyte morphology, germinal vesicle (GV) rate, actin cytoskeleton organization, cortical granule distribution, mitochondrial translocation and intracellular glutathione level were evaluated. Oocyte maturation was indicated by first polar body emission and spindle morphology after in vitro culture. Strikingly, when COCs were stored at 27.5°C for 3 days in pFF or FCS, more than 60% oocytes were still arrested at the GV stage and more than 50% oocytes matured into MII stages after culture. Almost 80% oocytes showed normal actin organization and cortical granule relocation to the cortex, and approximately 50% oocytes showed diffused mitochondria distribution patterns and normal spindle configurations. While stored in TCM-199, all these criteria decreased significantly. Glutathione (GSH) level in the pFF or FCS group was higher than in the TCM-199 group, but lower than in the non-preserved control group. The preserved oocytes could be fertilized and developed to blastocysts (about 10%) with normal cell number, which is clear evidence for their retaining the developmental potentiality after 3d preservation. Thus, we have developed a simple method for preserving immature pig oocytes at an ambient temperature for several days without evident damage of cytoplasm and keeping oocyte developmental competence.
Collapse
Affiliation(s)
- Cai-Rong Yang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
- College of Life Science, Northeast Agricultural University of China, Harbin, People's Republic of China
| | - De-Qiang Miao
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Qing-Hua Zhang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Lei Guo
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jing-Shan Tong
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yanchang Wei
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xin Huang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yi Hou
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri, United States of America
| | - ZhongHua Liu
- College of Life Science, Northeast Agricultural University of China, Harbin, People's Republic of China
- * E-mail: ;
| | - Qing-Yuan Sun
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
- * E-mail: ;
| |
Collapse
|
33
|
Prentice JR, Anzar M. Cryopreservation of Mammalian oocyte for conservation of animal genetics. Vet Med Int 2010; 2011. [PMID: 20886016 PMCID: PMC2945659 DOI: 10.4061/2011/146405] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Accepted: 08/09/2010] [Indexed: 11/24/2022] Open
Abstract
The preservation of the female portion of livestock genetics has become an international priority; however, in situ conservation strategies are extremely expensive. Therefore, efforts are increasingly focusing on the development of a reliable cryopreservation method for oocytes, in order to establish ova banks. Slow freezing, a common method for cryopreservation of oocytes, causes osmotic shock (solution effect) and intracellular ice crystallization leading to cell damage. Vitrification is an alternative method for cryopreservation in which cells are exposed to a higher concentration of cryoprotectants and frozen with an ultra rapid freezing velocity, resulting in an ice crystal free, solid glass-like structure. Presently, vitrification is a popular method for cryopreservation of embryos. However, vitrification of oocytes is still challenging due to their complex structure and sensitivity to chilling.
Collapse
Affiliation(s)
- Jennifer R Prentice
- Canadian Animal Genetic Resources, Agriculture and Agri-Food Canada, Saskatoon Research Centre, 107 Science Place, Saskatoon, SK, Canada S7N 0X2
| | | |
Collapse
|
34
|
Sharma GT, Dubey PK, Chandra V. Morphological changes, DNA damage and developmental competence of in vitro matured, vitrified-thawed buffalo (Bubalus bubalis) oocytes: A comparative study of two cryoprotectants and two cryodevices. Cryobiology 2010; 60:315-21. [DOI: 10.1016/j.cryobiol.2010.02.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Revised: 02/17/2010] [Accepted: 02/18/2010] [Indexed: 10/19/2022]
|
35
|
Somfai T, Noguchi J, Kaneko H, Nakai M, Ozawa M, Kashiwazaki N, Egerszegi I, Rátky J, Nagai T, Kikuchi K. Production of good-quality porcine blastocysts by in vitro fertilization of follicular oocytes vitrified at the germinal vesicle stage. Theriogenology 2010; 73:147-56. [DOI: 10.1016/j.theriogenology.2009.08.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 08/07/2009] [Accepted: 08/11/2009] [Indexed: 11/26/2022]
|
36
|
Luciano AM, Chigioni S, Lodde V, Franciosi F, Luvoni GC, Modina SC. Effect of different cryopreservation protocols on cytoskeleton and gap junction mediated communication integrity in feline germinal vesicle stage oocytes. Cryobiology 2009; 59:90-5. [DOI: 10.1016/j.cryobiol.2009.05.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Revised: 05/06/2009] [Accepted: 05/07/2009] [Indexed: 11/30/2022]
|
37
|
Zhang J, Nedambale T, Yang M, Li J. Improved development of ovine matured oocyte following solid surface vitrification (SSV): Effect of cumulus cells and cytoskeleton stabilizer. Anim Reprod Sci 2009; 110:46-55. [DOI: 10.1016/j.anireprosci.2007.12.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Revised: 12/05/2007] [Accepted: 12/12/2007] [Indexed: 10/22/2022]
|
38
|
The Potential Applications of Peroxisome Proliferator-Activated Receptor delta Ligands in Assisted Reproductive Technology. PPAR Res 2008; 2008:794814. [PMID: 19096716 PMCID: PMC2603272 DOI: 10.1155/2008/794814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Revised: 06/27/2008] [Accepted: 09/12/2008] [Indexed: 12/23/2022] Open
Abstract
Peroxisome proliferator-activated receptor δ (PPARδ, also known as PPARβ) has ubiquitous distribution and extensive biological functions. The reproductive function of PPARδ was first revealed in the uterus at the implantation site. Since then, PPARδ and its ligand have been discovered in all reproductive tissues, including the gametes and the preimplantation embryos. PPARδ in preimplantation embryos is normally activated by oviduct-derived PPARδ ligand. PPARδ activation is associated with an increase in embryonic cell proliferation and a decrease in programmed cell death (apoptosis). On the other hand, the role of PPARδ and its ligand in gamete formation and function is less well understood. This review will summarize the reproductive functions of PPARδ and project its potential applications in assisted reproductive technology.
Collapse
|
39
|
Luciano AM, Franciosi F, Lodde V, Perazzoli F, Slezáková M, Modina S. Cryopreservation of immature bovine oocytes to reconstruct artificial gametes by germinal vesicle transplantation. Reprod Domest Anim 2008; 44:480-8. [PMID: 18992089 DOI: 10.1111/j.1439-0531.2008.01194.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Joining immature gamete cryopreservation and germinal vesicle transplantation (GVT) technique could greatly improve assisted reproductive technologies in animal breeding and human medicine. The present work was aimed to assess the most suitable cryopreservation protocol between slow freezing and vitrification for immature denuded bovine oocytes, able to preserve both nuclear and cytoplasmic competence after thawing. In addition, the outcome of germinal vesicle transfer procedure and gamete reconstruction was tested on the most effective cryopreservation system. Oocytes, isolated from slaughterhouse ovaries, were stored after cumulus cells removal either by slow freezing or by vitrification in open pulled straws. After thawing, oocytes were matured for 24 h in co-culture with an equal number of just isolated intact cumulus enclosed oocytes, and fixed in order to evaluate the stage of meiotic progression and cytoskeleton organization. Our results showed that after warming, vitrified oocytes reached metaphase II (MII) in a percentage significantly higher than oocytes cryopreserved by slow freezing (76.2% and 36.5% respectively, p < 0.05). Moreover, vitrification process preserved the organization of cytoskeleton elements in a higher proportion of oocytes than slow freezing procedure. Therefore vitrification has been identified as the elective method for denuded immature oocytes banking and it has been applied in the second part of the study. Our results showed that 38.3% of oocytes reconstructed from vitrified gametes reached the MII of meiotic division, with efficiency not different from oocytes reconstructed with fresh gametes. We conclude that vitrification represents a suitable method of GV stage denuded oocyte banking since both nuclear and cytoplasmic components derived from cryopreserved immature oocytes can be utilized for GVT.
Collapse
Affiliation(s)
- A M Luciano
- Division of Veterinary Anatomy and Histology, Department of Animal Sciences, Faculty of Veterinary Medicine, University of Milan, Via Celoria 10, Milan, Italy.
| | | | | | | | | | | |
Collapse
|
40
|
Magnusson V, Feitosa WB, Goissis MD, Yamada C, Tavares LMT, D'Avila Assumpção MEO, Visintin JA. Bovine oocyte vitrification: Effect of ethylene glycol concentrations and meiotic stages. Anim Reprod Sci 2008; 106:265-73. [PMID: 17686591 DOI: 10.1016/j.anireprosci.2007.05.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Accepted: 05/01/2007] [Indexed: 11/21/2022]
Abstract
Success in oocyte cryopreservation is limited and several factors as cryoprotectant type or concentration and stage of oocyte meiotic maturation are involved. The aim of the present study was to evaluate the effect of maturation stage and ethylene glycol (EG) concentration on survival of bovine oocytes after vitrification. In experiment 1, kinetics of oocyte in vitro maturation (IVM) was evaluated. Germinal vesicle (GV), germinal vesicle breakdown (GVBD), metaphase I (MI), and metaphase II (MII) oocytes were found predominantly at 0, 0-10, 10-14, and 18-24h of IVM, respectively. In experiment 2, in vitro embryo development after in vitro fertilization (IVF) of oocytes exposed to equilibrium (ES) and vitrification solution VS-1 (EG 30%), or VS-2 (EG 40%) at 0, 12 or 18 h of IVM was evaluated. Only blastocyst rate from oocytes vitrified in SV-2 after 18 h of IVM was different from control oocytes. Hatched blastocyst rates from oocytes vitrified in VS-1 after 12 and 18 h, and SV-2 after 18 h of IVM were different from unvitrified oocytes. In experiment 3, embryo development was examined after IVF of oocytes vitrified using VS-1 or VS-2 at 0, 12 or 18 h of IVM. Rates of blastocyst development after vitrification of oocytes in VS-1 at each time interval were similar. However, after vitrification in VS-2, blastocyst rates were less at 18 h than 0 h. Both cleavage rates and blastocyst rates were significantly less in all vitrification groups when compared to control group and only control oocytes hatched. In conclusion, both EG concentration and stage of meiotic maturation affect the developmental potential of oocytes after vitrification.
Collapse
Affiliation(s)
- Vanessa Magnusson
- University of São Paulo, Faculty of Veterinary Medicine, Department of Animal Reproduction, São Paulo, SP, Brazil
| | | | | | | | | | | | | |
Collapse
|
41
|
Bogliolo L, Ariu F, Fois S, Rosati I, Zedda MT, Leoni G, Succu S, Pau S, Ledda S. Morphological and biochemical analysis of immature ovine oocytes vitrified with or without cumulus cells. Theriogenology 2007; 68:1138-49. [PMID: 17868798 DOI: 10.1016/j.theriogenology.2007.08.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2007] [Revised: 08/02/2007] [Accepted: 08/03/2007] [Indexed: 11/21/2022]
Abstract
The cryopreservation of oocytes is an open problem as a result of their structural sensitivity to the freezing process. This study examined (i) the survival and meiotic competence of ovine oocytes vitrified at the GV stage with or without cumulus cells; (ii) the viability and functional status of cumulus cells after cryopreservation; (iii) the effect of cytochalasin B treatment before vitrification; (iv) chromatin and spindle organization; (v) the maturation promoting factor (MPF) and mitogen-activated protein kinase (MAPK) activity of vitrified oocytes after in vitro maturation. Sheep oocytes were vitrified at different times during in vitro maturation (0, 2, and 6 h) with (COCs) or without cumulus cells (DOs). After warming and in vitro maturation, oocytes denuded at 0 h culture showed a significantly higher survival and meiotic maturation rate compared to the other groups. Hoechst 33342/propidium iodide double staining of COCs and microinjection of Lucifer Yellow revealed extensive cumulus cell membrane damage and reduced oocyte-cumulus cell communications after vitrification. Cytochalasin B treatment of COCs before vitrification exerted a negative effect on oocyte survival. After in vitro maturation, the number of vitrified oocytes with abnormal spindle and chromatin configuration was significantly higher compared to control oocytes, independently of the presence or absence of cumulus cells. The removal of cumulus cells combined with vitrification significantly decreased the MPF and MAPK levels. This study provides evidence that the removal of cumulus cells before vitrification enhances oocyte survival and meiotic competence, while impairing the activity of important proteins that could affect the developmental competence of oocytes.
Collapse
Affiliation(s)
- L Bogliolo
- Department of Pathology and Veterinary Clinic, University of Sassari, Via Vienna 2, 07100 Sassari, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Succu S, Bebbere D, Bogliolo L, Ariu F, Fois S, Leoni GG, Berlinguer F, Naitana S, Ledda S. Vitrification of in vitro matured ovine oocytes affects in vitro pre-implantation development and mRNA abundance. Mol Reprod Dev 2007; 75:538-46. [PMID: 17886274 DOI: 10.1002/mrd.20784] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The impact of vitrification procedures on in vitro matured (IVM) ovine oocytes mRNA content and ability to undergo successful fertilization, cleavage and embronic development was assessed. Vitrified-warmed (n = 113) and control (n = 140) IVM oocytes were in vitro fertilized and cultured up to blastocyst stage under standard conditions. Vitrified oocytes showed lower cleavage rate (47% vs. 75%, P < 0.001) and development to blastocyst stage (17% vs. 57%, P < 0.001) than controls. In addition, the timings of the first cleavage and blastocysts production were significantly delayed in the vitrified-warmed group (P < 0.001 in both cases). In parallel, we analyzed by reverse transcriptase real-time PCR the relative abundance of beta-actin, H2A.Z histone, Poli A Polimerase (PAP), Heat Shock Protein 90 beta (HSP90 beta), P34(cdc2), Cyclin b, Na/K-ATPase and Type I cadherin (E-Cad) transcripts in single IVM controls (n = 24) and vitrified-warmed oocytes (n = 40). Results were normalized against the exogenous rabbit alpha-globin mRNA standard and the beta-actin housekeeping gene and similarly described a lower abundance of most mRNAs in oocytes subjected to vitrification procedures. When normalized against the exogenous standard mRNA, all transcripts except for beta-actin and H2A.Z showed a significantly different abundance in the two classes of oocytes. The same results were obtained after normalization against the internal standard, except for HSP90 beta and E-Cad transcripts, whose lower abundance in vitrified-warmed oocytes resulted prominent, but not significant (P = 0.083 and P = 0.068, respectively). The oocyte lower transcripts abundance following vitrification might be an early indicator of poor quality in good correlation with the developmental data to blastocyst stage.
Collapse
Affiliation(s)
- Sara Succu
- Department of Animal Biology, University of Sassari, Sassari, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|