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Sciorio R, Tramontano L, Campos G, Greco PF, Mondrone G, Surbone A, Greco E, Talevi R, Pluchino N, Fleming S. Vitrification of human blastocysts for couples undergoing assisted reproduction: an updated review. Front Cell Dev Biol 2024; 12:1398049. [PMID: 38827525 PMCID: PMC11140474 DOI: 10.3389/fcell.2024.1398049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/25/2024] [Indexed: 06/04/2024] Open
Abstract
Over the past 40 years there has been a worldwide critical change in the field of assisted reproduction technology (ART), leading to the increased application of single blastocyst transfer, which is extremely important to avoid the risks of multiple pregnancy and associated complications for both mother and babies. Indeed, advancements in ART over the last few decades have been obtained thanks to several improvements, including ovarian stimulation, embryo culture conditions and, of course, progress in cryopreservation methods, especially with the application of vitrification. The ability to cryopreserve human embryos has improved significantly with vitrification compared to the initially adopted slow-freezing procedures. Since the introduction of vitrification, it has become the gold standard method to effectively cryopreserve human blastocysts. However, some new protocols are now being explored, such as the short warming procedure and even shorter exposure to the equilibration solution before vitrification, which seem to provide optimal results. Therefore, the main aim of the current narrative review, will be to illustrate the benefit of vitrification as an effective method to cryopreserve the human blastocyst and to illustrate new protocols and variations which in future may increase the performance of vitrification protocols.
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Affiliation(s)
- Romualdo Sciorio
- Fertility Medicine and Gynaecological Endocrinology Unit, Department Woman Mother Child, Lausanne University Hospital, Lausanne, Switzerland
| | - Luca Tramontano
- Département de Gynécologie-Obstétrique, Réseau Hospitalier Neuchâtelois, Neuchâtel, Switzerland
| | - Gerard Campos
- Fertility Geisinger Medical Center, Women’s Health Fertility Clinic, Danville, PA, United States
- GIREXX Fertility Clinics, Girona-Barcelona, Spain
| | | | | | - Anna Surbone
- Fertility Medicine and Gynaecological Endocrinology Unit, Department Woman Mother Child, Lausanne University Hospital, Lausanne, Switzerland
| | - Ermanno Greco
- Villa Mafalda, Centre for Reproductive Medicine, Rome, Italy
- Department of Obstetrics and Gynecology, UniCamillus, International Medical University, Rome, Italy
| | - Riccardo Talevi
- Dipartimento di Biologia Strutturale e Funzionale, Universita’ di Napoli ‘Federico II’, Complesso Universitario di Monte S, Napoli, Italy
| | - Nicola Pluchino
- Fertility Medicine and Gynaecological Endocrinology Unit, Department Woman Mother Child, Lausanne University Hospital, Lausanne, Switzerland
| | - Steven Fleming
- Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Sydney, NSW, Australia
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Kamoshita M, Sugita H, Kageyama A, Kawata Y, Ito J, Kashiwazaki N. Recent advances of oocyte/embryo vitrification in mammals from rodents and large animals. Anim Sci J 2024; 95:e13931. [PMID: 38400795 DOI: 10.1111/asj.13931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/21/2024] [Accepted: 02/06/2024] [Indexed: 02/26/2024]
Abstract
Vitrification is a valuable technology that enables semipermanent preservation and long-distance or international transportation of genetically modified and native animals. In laboratory mice, vitrification maintains and transports embryos, and many institutions and companies sell vitrified embryos. In contrast, despite numerous papers reporting on vitrification in livestock over the past decade, practical implementation has yet to be achieved. However, with advances in genome editing technology, it is anticipated that the number of genetically modified domestic animals will increase, leading to a rise in demand for vitrification of oocytes and embryos. Here, we provide an objective overview of recent advancements in vitrification technology for livestock, drawing a comparison with the current developments in laboratory animals. Additionally, we explore the future prospects for vitrification in livestock, focusing on its potential benefits and drawbacks.
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Affiliation(s)
- Maki Kamoshita
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Hibiki Sugita
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Atsuko Kageyama
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Yui Kawata
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Junya Ito
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara, Japan
| | - Naomi Kashiwazaki
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara, Japan
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3
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Sciorio R, Campos G, Tramontano L, Bulletti FM, Baldini GM, Vinciguerra M. Exploring the effect of cryopreservation in assisted reproductive technology and potential epigenetic risk. ZYGOTE 2023; 31:420-432. [PMID: 37409505 DOI: 10.1017/s0967199423000345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Since the birth of the first baby by in vitro fertilization in 1978, more than 9 million children have been born worldwide using medically assisted reproductive treatments. Fertilization naturally takes place in the maternal oviduct where unique physiological conditions enable the early healthy development of the embryo. During this dynamic period of early development major waves of epigenetic reprogramming, crucial for the normal fate of the embryo, take place. Increasingly, over the past 20 years concerns relating to the increased incidence of epigenetic anomalies in general, and genomic-imprinting disorders in particular, have been raised following assisted reproduction technology (ART) treatments. Epigenetic reprogramming is particularly susceptible to environmental conditions during the periconceptional period and non-physiological conditions such as ovarian stimulation, in vitro fertilization and embryo culture, as well as cryopreservation procedure, might have the potential to independently or collectively contribute to epigenetic dysregulation. Therefore, this narrative review offers a critical reappraisal of the evidence relating to the association between embryo cryopreservation and potential epigenetic regulation and the consequences on gene expression together with long-term consequences for offspring health and wellbeing. Current literature suggests that epigenetic and transcriptomic profiles are sensitive to the stress induced by vitrification, in terms of osmotic shock, temperature and pH changes, and toxicity of cryoprotectants, it is therefore, critical to have a more comprehensive understanding and recognition of potential unanticipated iatrogenic-induced perturbations of epigenetic modifications that may or may not be a consequence of vitrification.
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Affiliation(s)
- Romualdo Sciorio
- Edinburgh Assisted Conception Programme, EFREC, Royal Infirmary of Edinburgh, UK
| | | | - Luca Tramontano
- Department of Women, Infants and Adolescents, Division of Obstetrics, Geneve University Hospitals, Boulevard de la Cluse 30, Geneve 14, Switzerland
| | - Francesco M Bulletti
- Department Obstetrics and Gynecology, University Hospital of Vaud, Lausanne, Switzerland
| | | | - Marina Vinciguerra
- Department of Biomedical Sciences and Human Oncology, Obstetrics and Gynaecology Section, University of Bari, Italy
- Clinic of Obstetrics and Gynecology 'Santa Caterina Novella', Galatina Hospital, Italy
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Sciorio R, Manna C, Fauque P, Rinaudo P. Can Cryopreservation in Assisted Reproductive Technology (ART) Induce Epigenetic Changes to Gametes and Embryos? J Clin Med 2023; 12:4444. [PMID: 37445479 DOI: 10.3390/jcm12134444] [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: 03/11/2023] [Revised: 06/05/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Since the birth of Louise Brown in 1978, more than nine million children have been conceived using assisted reproductive technologies (ARTs). While the great majority of children are healthy, there are concerns about the potential epigenetic consequences of gametes and embryo manipulation. In fact, during the preimplantation period, major waves of epigenetic reprogramming occur. Epigenetic reprogramming is susceptible to environmental changes induced by ovarian stimulation, in-vitro fertilization, and embryo culture, as well as cryopreservation procedures. This review summarizes the evidence relating to oocytes and embryo cryopreservation and potential epigenetic regulation. Overall, it appears that the stress induced by vitrification, including osmotic shock, temperature and pH changes, and toxicity of cryoprotectants, might induce epigenetic and transcriptomic changes in oocytes and embryos. It is currently unclear if these changes will have potential consequences for the health of future offspring.
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Affiliation(s)
- Romualdo Sciorio
- Edinburgh Assisted Conception Programme, Royal Infirmary of Edinburgh, Edinburgh EH16 4SA, UK
| | - Claudio Manna
- Biofertility IVF and Infertility Center, 00198 Rome, Italy
| | - Patricia Fauque
- Université Bourgogne Franche-Comté-Equipe Génétique des Anomalies du Development (GAD) INSERM UMR1231, F-21000 Dijon, France
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction-CECOS, F-21000 Dijon, France
| | - Paolo Rinaudo
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 92037, USA
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Bolton VN, Hayden C, Robinson M, Abdo D, Pericleous-Smith A. Human oocyte cryopreservation: revised evidence for practice. HUM FERTIL 2023:1-15. [DOI: 10.1080/14647273.2023.2190987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Kankanam Gamage US, Hashimoto S, Miyamoto Y, Nakano T, Yamanaka M, Koike A, Satoh M, Morimoto Y. Mitochondria Transfer from Adipose Stem Cells Improves the Developmental Potential of Cryopreserved Oocytes. Biomolecules 2022; 12:biom12071008. [PMID: 35883564 PMCID: PMC9313289 DOI: 10.3390/biom12071008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 02/06/2023] Open
Abstract
Although it is not a well-established technology, oocyte cryopreservation is becoming prevalent in assisted reproductive technologies in response to the growing demands of patients’ sociological and pathological conditions. Oocyte cryopreservation can adversely affect the developmental potential of oocytes by causing an increase in intracellular oxidative stresses and damage to the mitochondrial structure. In this study, we studied whether autologous adipose stem cell (ASC) mitochondria supplementation with vitrified and warmed oocytes could restore post-fertilization development that decreased due to mitochondrial damage following cryopreservation. ASC mitochondria showed similar morphology to oocytes’ mitochondria and had a higher ATP production capacity. The vitrified-warmed oocytes from juvenile mice were supplemented with ASC mitochondria at the same time as intracellular sperm injection (ICSI), after which we compared their developmental capacity and the mitochondria quality of 2-cell embryos. We found that, compared to their counterpart, mitochondria supplementation significantly improved development from 2-cell embryos to blastocysts (56.8% vs. 38.2%) and ATP production in 2-cell embryos (905.6 & 561.1 pmol), while reactive oxygen species levels were comparable. With these results, we propose that ASC mitochondria supplementation could restore the quality of cryopreserved oocytes and enhance the embryo developmental capacity, signifying another possible approach for mitochondrial transplantation therapy.
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Affiliation(s)
- Udayanga Sanath Kankanam Gamage
- HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan; (Y.M.); (A.K.)
- Correspondence: (U.S.K.G.); (S.H.); (Y.M.); Tel.: +81-90-9823-8477 (U.S.K.G.); +81-6-6645-2121 (S.H.); +81-6-6377-8824 (Y.M.)
| | - Shu Hashimoto
- Reproductive Science Institute, Graduate School of Medicine, Osaka Metropolitan University, Osaka 545-8585, Japan
- Correspondence: (U.S.K.G.); (S.H.); (Y.M.); Tel.: +81-90-9823-8477 (U.S.K.G.); +81-6-6645-2121 (S.H.); +81-6-6377-8824 (Y.M.)
| | - Yuki Miyamoto
- HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan; (Y.M.); (A.K.)
| | - Tatsuya Nakano
- IVF Namba Clinic, Osaka 550-0015, Japan; (T.N.); (M.Y.); (M.S.)
| | - Masaya Yamanaka
- IVF Namba Clinic, Osaka 550-0015, Japan; (T.N.); (M.Y.); (M.S.)
| | - Akiko Koike
- HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan; (Y.M.); (A.K.)
| | - Manabu Satoh
- IVF Namba Clinic, Osaka 550-0015, Japan; (T.N.); (M.Y.); (M.S.)
| | - Yoshiharu Morimoto
- HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan; (Y.M.); (A.K.)
- Correspondence: (U.S.K.G.); (S.H.); (Y.M.); Tel.: +81-90-9823-8477 (U.S.K.G.); +81-6-6645-2121 (S.H.); +81-6-6377-8824 (Y.M.)
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7
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Fan C, Wu Y, Rui X, Yang Y, Ling C, Liu S, Liu S, Wang Y. Animal models for COVID-19: advances, gaps and perspectives. Signal Transduct Target Ther 2022; 7:220. [PMID: 35798699 PMCID: PMC9261903 DOI: 10.1038/s41392-022-01087-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 01/08/2023] Open
Abstract
COVID-19, caused by SARS-CoV-2, is the most consequential pandemic of this century. Since the outbreak in late 2019, animal models have been playing crucial roles in aiding the rapid development of vaccines/drugs for prevention and therapy, as well as understanding the pathogenesis of SARS-CoV-2 infection and immune responses of hosts. However, the current animal models have some deficits and there is an urgent need for novel models to evaluate the virulence of variants of concerns (VOC), antibody-dependent enhancement (ADE), and various comorbidities of COVID-19. This review summarizes the clinical features of COVID-19 in different populations, and the characteristics of the major animal models of SARS-CoV-2, including those naturally susceptible animals, such as non-human primates, Syrian hamster, ferret, minks, poultry, livestock, and mouse models sensitized by genetically modified, AAV/adenoviral transduced, mouse-adapted strain of SARS-CoV-2, and by engraftment of human tissues or cells. Since understanding the host receptors and proteases is essential for designing advanced genetically modified animal models, successful studies on receptors and proteases are also reviewed. Several improved alternatives for future mouse models are proposed, including the reselection of alternative receptor genes or multiple gene combinations, the use of transgenic or knock-in method, and different strains for establishing the next generation of genetically modified mice.
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Affiliation(s)
- Changfa Fan
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
| | - Yong Wu
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
| | - Xiong Rui
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
- Department of Microbiology & Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100083, China
| | - Yuansong Yang
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
| | - Chen Ling
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
- College of Life Sciences, Northwest University; Provincial Key Laboratory of Biotechnology of Shaanxi Province, Northwest University, Xi'an, 710069, China
| | - Susu Liu
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
| | - Shunan Liu
- Division of Animal Model Research, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control (NIFDC), National Rodent Laboratory Animal Resources Center, Beijing, 102629, China
| | - Youchun Wang
- Division of HIV/AIDS and Sexually Transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC), Beijing, China.
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WGBS combined with RNA-seq analysis revealed that Dnmt1 affects the methylation modification and gene expression changes during mouse oocyte vitrification. Theriogenology 2022; 177:11-21. [PMID: 34653792 DOI: 10.1016/j.theriogenology.2021.09.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 01/01/2023]
Abstract
Understanding the molecular level changes of oocyte cryopreservation and the subsequent warming process is essential for improving the oocyte cryopreservation technologies. Here, we collected the mature metaphase II (MII) oocytes from mice and vitrified. After thawing, single-cell whole-genome bisulphite sequencing (scWGBS) and single-cell RNA sequencing (scRNA-seq) were used to investigate the molecular attributes of this process. Compared to the fresh oocytes, the vitrified oocytes had lower global methylation and gene expression levels, and 1426 genes up-regulated and 3321 genes down-regulated. The 1426 up-regulated differentially expressed genes (DEGs) in the vitrified oocytes were mainly associated with the histone ubiquitination, while the 3321 down-regulated genes were mainly enriched in the mitochondrion organisation and ATP metabolism processes. The differentially methylated regions (DMRs) were mainly located in promoter, intron and exon region of genes, and the length of DMRs in the vitrified oocytes were also significantly lower than that of the fresh oocytes. Notably, there were no significant difference in the expression levels of DNA demethylases (Tet1, Tet2 and Tet3) and methyltransferases (Dnmt3a and Dnmt3b) between two treatments of oocytes. However, Dnmt1 and kcnq1ot1, which are responsible for maintaining DNA methylation, were significantly down regulated in the vitrified oocytes. Gene regulatory network (GRN) analysis showed the Dnmt1 and kcnq1ot1 play a core role in regulating methylation and expression levels of downstream genes. Moreover, some genes associated with oocyte quality were significantly down-regulated in the vitrified oocytes. The present data provides a new perspective for understanding the impact of vitrification on oocytes.
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Harada Y, Kinutani M, Horiuchi T. Improved developmental potential of mouse vitrified-warmed oocytes achieved by culturing in recovery medium with glutathione ethyl ester (GSH-OEt). Reprod Med Biol 2021; 20:505-512. [PMID: 34646079 PMCID: PMC8499599 DOI: 10.1002/rmb2.12411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/03/2021] [Accepted: 08/17/2021] [Indexed: 12/22/2022] Open
Abstract
PURPOSE The aim of the present study was to investigate the effect of glutathione ethyl ester (GSH-OEt) in the recovery medium on the developmental competence of mouse vitrified-warmed MII oocytes. METHODS Vitrified-warmed oocytes were incubated for 1 h in recovery medium in the presence or absence of 0.5 mM GSH-OEt. The authors examined the effects of GSH-OEt, first on the levels of glutathione (GSH) and reactive oxygen species (ROS) in vitrified-warmed oocytes, and second, on in vitro blastocyst development, division speed to blastocysts, and total cell numbers of blastocysts from vitrified-warmed oocytes fertilized by Intracytoplasmic sperm injection (ICSI). RESULTS Adding GSH-OEt to the recovery medium significantly (p < 0.05) increased GSH content and decreased ROS levels in vitrified-warmed oocytes. The blastocyst rate did not differ significantly between the two groups, but the speed of development to blastocysts in the GSH-OEt (+) group was significantly more rapid. In addition, the total blastocyst cell number was significantly higher in the GSH-OEt (+) group than in the GSH-OEt (-) group (92.8 ± 5.1 vs. 71.4 ± 3.5, p < 0.01). CONCLUSION Adding GSH-OEt to the recovery medium of vitrified-warmed mouse oocytes enhances the development potential of oocytes and improves the quality of blastocysts.
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Affiliation(s)
| | | | - Toshitaka Horiuchi
- Emeritus Professor of Prefectural University of HiroshimaHiroshimaJapan
- Institute for Advanced Reproductive MedicineOchi Yume Clinic NagoyaNagoyaJapan
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10
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Namiki T, Kamoshita M, Kageyama A, Terakawa J, Ito J, Kashiwazaki N. Utility of progesterone receptor-ires-Cre to generate conditional knockout mice for uterine study. Anim Sci J 2021; 92:e13615. [PMID: 34402137 PMCID: PMC9286405 DOI: 10.1111/asj.13615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/13/2021] [Accepted: 07/26/2021] [Indexed: 11/27/2022]
Abstract
In mice, the conditional knockout strategy using the Cre-loxP system is useful for various types of research. The Cre mouse line with progesterone receptor promoter (PgrCre ) has been widely used to produce specific uterine gene-deficient mice, but in the Cre line, endogenous Pgr gene is replaced by Cre recombinase gene, which makes the breeding of homozygous mice (PgrCre/Cre ) difficult because they are infertile. Yang et al. (2013, https://10.1016/j.cell.2013.04.017) reported the generation of another PgriresCre mouse line that still has endogenous Pgr gene, and they inserted Cre recombinase downstream of the Pgr gene via an internal ribosome entry site (IRES). It is possible that this new PgriresCre line would be useful for uterine research as the mice can be bred as homozygotes (PgriresCre/iresCre ). Herein, we confirmed the PgriresCre mice effectively directed recombination in the female reproductive tract and was capable of genetic alteration in the endometrium that enables the studies of its uterine function. Our findings demonstrate that the new PgriresCre mouse line is also useful for the generation of uterine-specific knockout mice. The findings using PgriresCre mouse will contribute to the understanding of reproductive systems and diseases in humans and domestic animals.
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Affiliation(s)
- Takafumi Namiki
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University, Sagamihara, Japan.,Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Maki Kamoshita
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University, Sagamihara, Japan.,Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Atsuko Kageyama
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University, Sagamihara, Japan.,Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Jumpei Terakawa
- Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan.,Laboratory of Toxicology, School of Veterinary Medicine, Azabu University, Sagamihara, Japan
| | - Junya Ito
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University, Sagamihara, Japan.,Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan.,Center for Human and Animal Symbiosis Science, Azabu University, Sagamihara, Japan
| | - Naomi Kashiwazaki
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University, Sagamihara, Japan.,Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
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11
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Highly successful production of viable mice derived from vitrified germinal vesicle oocytes. PLoS One 2021; 16:e0248050. [PMID: 33705447 PMCID: PMC7951897 DOI: 10.1371/journal.pone.0248050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 02/18/2021] [Indexed: 11/24/2022] Open
Abstract
The vitrification of immature germinal vesicle (GV) oocytes is an important way to preserve genetic resources and female fertility. However, it is well known that cryopreserved GV oocytes have very poor developmental ability and that further improvement in this technique is needed. We previously reported the successful vitrification of matured mouse oocytes with enclosed cumulus cells using the calcium-free vitrification solution supplemented with ethylene glycol (EG) by the minimal volume cooling (MVC) method. In this study, we investigated whether our method is applicable to the vitrification of mouse oocytes at the GV stage (GV oocytes). Following maturation and fertilization in vitro, vitrified GV oocytes showed high survival (94.3 ± 2.0%) and maturation (94.3 ± 2.1%) rates. Although the fertilization and blastocyst rates of vitrified oocytes (fertilization: 46.6 ± 4.9% and blastocyst: 46.6 ± 3.0%) were significantly lower than those of fresh oocytes (fertilization: 73.0 ± 7.1% and blastocyst: 71.6 ± 8.0%) (P < 0.01), there were no differences in the ability to develop to term between fresh oocytes (50.0 ± 8.4%) and vitrified oocytes (37.5 ± 4.6%) (P > 0.05). In conclusion, we here show, for the first time, the efficient production of live mice derived from vitrified GV oocytes.
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12
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Barberet J, Barry F, Choux C, Guilleman M, Karoui S, Simonot R, Bruno C, Fauque P. What impact does oocyte vitrification have on epigenetics and gene expression? Clin Epigenetics 2020; 12:121. [PMID: 32778156 PMCID: PMC7418205 DOI: 10.1186/s13148-020-00911-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
Children conceived by assisted reproductive technologies (ART) have a moderate risk for a number of adverse events and conditions. The question whether this additional risk is associated with specific procedures used in ART or whether it is related to the intrinsic biological factors associated with infertility remains unresolved. One of the main hypotheses is that laboratory procedures could have an effect on the epigenome of gametes and embryos. This suspicion is linked to the fact that ART procedures occur precisely during the period when there are major changes in the organization of the epigenome. Oocyte freezing protocols are generally considered safe; however, some evidence suggests that vitrification may be associated with modifications of the epigenetic marks. In this manuscript, after describing the main changes that occur during epigenetic reprogramming, we will provide current information regarding the impact of oocyte vitrification on epigenetic regulation and the consequences on gene expression, both in animals and humans. Overall, the literature suggests that epigenetic and transcriptomic profiles are sensitive to the stress induced by oocyte vitrification, and it also underlines the need to improve our knowledge in this field.
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Affiliation(s)
- Julie Barberet
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Fatima Barry
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Cécile Choux
- Gynécologie-Obstétrique, CHU Dijon Bourgogne, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Magali Guilleman
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Sara Karoui
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Raymond Simonot
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Céline Bruno
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Patricia Fauque
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
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Filatov MA, Nikishin DA, Khramova YV, Semenova ML. The in vitro Analysis of Quality of Ovarian Follicle Culture Systems Using Time-Lapse Microscopy and Quantitative Real-Time PCR. J Reprod Infertil 2020; 21:94-106. [PMID: 32500012 PMCID: PMC7253941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The aim of ovarian follicle in vitro culture is to obtain mature oocytes. To evaluate the efficiency of in vitro culture system, the status of the cultured oocyte can be analyzed. METHODS The preantral ovarian follicles retrieved from 14-day-old C57Bl/6J mice were cultured in 3D alginate hydrogel. The status of oocytes obtained from mature (3 months old, group A) and immature (3 weeks old, group B) mice was compared to the status of oocytes retrieved from ovarian follicles cultured in vitro (Group C) using qRT-PCR analysis and time-lapse microscopy. In the qRT-PCR analysis, 8 samples for group A (80 oocytes), 8 samples for group B (80 oocytes), and 6 samples for group C (60 oocytes) were included. Time-lapse analysis was performed in group A (oocytes n=31), group B (n=45), and group C (n=21). Statistical analysis was done by Kruskal-Wallis and chi-square tests and differences were considered statistically significant if p<0,05. RESULTS The diameter of group C oocytes is lower in comparison to group A oocytes (67 μm vs. 75 μm, correspondingly). Groups B and C oocytes exhibited delayed meiosis in comparison to group A oocytes. Expression levels of six oocyte maturation genes (Ccnb, CDK1, Ccnh, Wee2, Mos and Epab) were evaluated using qRT-PCR analysis. Expression levels of Ccnh and Epab are lowered in group C oocytes compared to the expression levels of these genes in groups A and B oocytes (p< 0.05). CONCLUSION Oocytes obtained after ovarian follicles in vitro culture have reduced development competence, future fundamental changes of in vitro culture systems can be expected.
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Affiliation(s)
- Maxim Alexeevich Filatov
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia,Corresponding Author: Maxim Alexeevich Filatov, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia E-mail:
| | - Denis Alexandrovich Nikishin
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia, N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
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Mukunoki A, Takeo T, Nakagata N. N-acetyl cysteine restores the fertility of vitrified-warmed mouse oocytes derived through ultrasuperovulation. PLoS One 2019; 14:e0224087. [PMID: 31639156 PMCID: PMC6804996 DOI: 10.1371/journal.pone.0224087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 10/05/2019] [Indexed: 01/22/2023] Open
Abstract
Oocyte cryopreservation is useful for preserving fertility and storing genetic resources. However, the small number of oocytes acquired using conventional treatment to induce superovulation and the reduction of fertility due to cryopreservation represent significant problems. Herein, we vitrified the oocytes derived through high-yield superovulation using inhibin antiserum and equine chorionic gonadotropin (IAS + eCG: IASe) and examined the yield of cryopreserved oocytes and survival rates relative to those of vitrified–warmed mouse oocytes derived through conventional superovulation using equine chorionic gonadotropin (eCG). Furthermore, we investigated the effects of N-acetyl cysteine on the fertility and developmental potential of vitrified–warmed oocytes derived using IASe. Compared with eCG, IASe increased the yield of cryopreserved oocytes and achieved equivalent survival rates. N-acetyl cysteine (0.5 mM) increased the fertilization rate of vitrified–warmed oocytes derived using IASe. Vitrification decreased thiol levels in the zona pellucida (ZP), while warming followed by N-acetyl cysteine treatment increased free thiol levels in ZP. Moreover, N-acetyl cysteine treatment recovered zona hardening by cleaving disulfide bonds and promoting the expansion of ZP. Two-cell embryos derived via in vitro fertilization using N-acetyl cysteine developed into normal pups through embryo transfer. Therefore, we developed an efficient technique for the production of cryopreserved oocytes using IASe through superovulation and found that N-acetyl cysteine improves the fertility of vitrified–warmed oocytes by cleaving the disulfide bonds and promoting the expansion of ZP.
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Affiliation(s)
- Ayumi Mukunoki
- Division of Reproductive Engineering, Center for Animal Resources and Development, Kumamoto University, Honjo, Chuo-ku, Kumamoto, Japan
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development, Kumamoto University, Honjo, Chuo-ku, Kumamoto, Japan
| | - Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development, Kumamoto University, Honjo, Chuo-ku, Kumamoto, Japan
- * E-mail:
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Preincubation with glutathione ethyl ester improves the developmental competence of vitrified mouse oocytes. J Assist Reprod Genet 2018; 35:1169-1178. [PMID: 29876682 DOI: 10.1007/s10815-018-1215-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/17/2018] [Indexed: 01/08/2023] Open
Abstract
PURPOSE Oocyte vitrification is currently used for human fertility preservation. However, vitrification damage is a problem caused by decreasing ooplasmic levels of glutathione (GSH). The GSH donor glutathione ethyl ester (GSH-OEt) can significantly increase the GSH content in oocytes. However, it is difficult to obtain oocyte from woman. To overcome this, we used mouse oocytes to replace human oocytes as a model of study. METHODS Oocytes from B6D2F1 mice were preincubated for 30 min with 2.5 mmol/L GSH-OEt (GSH-OEt group), without GSH-OEt preincubation before vitrification (control vitrification group) or in nonvitrified oocytes (fresh group). After thawing, oocytes were fertilized for evaluating the developmental competence of embryos in vitro and in vivo. Immunofluorescence, Polscope equipment and quantitative reverse transcription polymerase chain reaction (RT-qPCR) were used to analyze damage, including mitochondrial distribution, reactive oxygen species (ROS) levels, spindle morphology, and gene expression levels (Bcl-2, BAX, and MnSOD). RESULTS The rates of fertilization, 3-4 cell, blastocyst formation and expanded blastocysts were significantly higher (p < 0.05) in the GSH-OEt group (90.4%; 91.1%; 88.9% and 63.0%) than in the control (80.0%; 81.4%; 77.7% and 50.5%). Provided embryos overcame the 2-cell block and developed to the blastocyst stage, birth rates of all groups were similar. Vitrification altered mitochondrial distribution, increased ROS levels, and caused abnormal spindle morphology; GSH-OEt preincubation could improve such damage. RT-qPCR showed that the expression of Bcl-2 was lower in the control group compared with the GSH-OEt group; BAX and MnSoD expression levels were higher in the control group than in the GSH-OEt group (p < 0.05). CONCLUSIONS The beneficial effect of GSH-OEt preincubation occurred before the 2-cell stage.
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Ishii T, Tomita K, Sakakibara H, Ohkura S. Embryogenesis of vitrified mature bovine oocytes is improved in the presence of multi-layered cumulus cells. J Reprod Dev 2017; 64:95-99. [PMID: 29057767 PMCID: PMC5830364 DOI: 10.1262/jrd.2017-095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study was aimed at evaluating the effects of multi-layered cumulus cells (MCCs) during vitrification and in vitro fertilization (IVF) of mature bovine oocytes and embryogenesis after IVF. The rates of cleavage and blastocyst formation were higher in vitrified and fertilized oocytes with MCCs than in denuded oocytes (P < 0.05), but were comparable to the rates in fresh oocytes with MCCs or without (denuded). When the MCC-enclosed oocytes were denuded before IVF, blastocyst formation rate reduced compared with that in vitrified oocytes with MCCs (P < 0.05). This suggested that the MCCs surrounding the mature bovine oocytes play important roles during cryopreservation: protecting them against freezing and promoting their survival and development post IVF, thereby increasing the success rates of IVF and embryonic development. Herein, we showed for the first time that calves could be produced using only 14-19 vitrified mature oocytes with MCCs from the ovaries of individual cows post slaughter.
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Affiliation(s)
- Toshimichi Ishii
- Department of Livestock Improvement and Reproduction, Mie Prefectural Livestock Research Center, Mie 515-2324, Japan
| | - Kensuke Tomita
- Department of Livestock Improvement and Reproduction, Mie Prefectural Livestock Research Center, Mie 515-2324, Japan
| | - Hideo Sakakibara
- Department of Livestock Improvement and Reproduction, Mie Prefectural Livestock Research Center, Mie 515-2324, Japan
| | - Satoshi Ohkura
- Laboratory of Animal Production Science, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
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17
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Kamoshita M, Kato T, Fujiwara K, Namiki T, Matsumura K, Hyon SH, Ito J, Kashiwazaki N. Successful vitrification of pronuclear-stage pig embryos with a novel cryoprotective agent, carboxylated ε-poly-L-lysine. PLoS One 2017; 12:e0176711. [PMID: 28448636 PMCID: PMC5407792 DOI: 10.1371/journal.pone.0176711] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 04/15/2017] [Indexed: 11/18/2022] Open
Abstract
Vitrification is a powerful tool for the efficient production of offspring derived from cryopreserved oocytes or embryos in mammalian species including domestic animals. Genome editing technologies such as transcription activator-like effector nucleases (TALENs) and clustered regularly interspaced short palindromic repeats (CRISPR)/ CRISPR-associated (Cas)9 are now available even for domestic species, suggesting that the vitrification of embryos at the pronuclear stage (PN) will be more important because they could provide genomic host cells to be targeted by TALENs or CRISPR/Cas9. Although we reported the successful production of piglets derived from vitrified PN embryos by a solid-surface vitrification method with glutathione supplementation, further improvements are required. The cryoprotective agent (CPA) carboxylated ε-poly-L-lysine (COOH-PLL) was introduced in 2009. COOH-PLL reduces the physical and physiological damage caused by cryopreservation in mammalian stem cells and the vitrification of mouse oocytes and embryos. Those results suggested that vitrification of COOH-PLL may help improve the developmental ability of pig embryos vitrified at the PN stage. However, it remains unclear whether COOH-PLL is available as a CPA for the vitrification of embryos in domestic species. In this study, we evaluated COOH-PLL as a CPA with ethylene glycol (EG) and Cryotop as a device for the vitrification of PN pig embryos. Exposure to vitrification solution supplemented with COOH-PLL up to 30% did not decrease developmental ability to the 2-cell stage and the blastocyst stage. After warming, most of the vitrified embryos survived regardless of the concentration of COOH-PLL (76.0 ± 11.8% to 91.8 ± 4.6%). However, the vitrified embryos without COOH-PLL showed a lower development rate up to the blastocyst stage (1.3 ± 1.0%) compared to the fresh embryos (28.4 ± 5.0%) (p<0.05). In contrast, supplementation of 20% (w/v) COOH-PLL in the vitrification solution dramatically improved the developmental ability to blastocysts of the vitrified embryos (19.4 ± 4.6%) compared to those without COOH-PLL (p<0.05). After the transfer of embryos vitrified with 30% (v/v) EG and 20% (w/v) COOH-PLL, we successfully obtained 15 piglets from 8 recipients. Taken together, our present findings demonstrate for the first time that COOH-PLL is an effective CPA for embryo vitrification in the pig. COOH-PLL is a promising CPA for further improvements in the vitrification of oocytes and embryos in mammalian species.
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Affiliation(s)
- Maki Kamoshita
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Tsubasa Kato
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Katsuyoshi Fujiwara
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Takafumi Namiki
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | | | - Suong-Hyu Hyon
- Center for Fiber and Textile Science, Kyoto Institute of Technology, Matsugasaki, Kyoto, Japan
| | - Junya Ito
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara, Japan
| | - Naomi Kashiwazaki
- Laboratory of Animal Reproduction, Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara, Japan
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18
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Wang N, Li CY, Zhu HB, Hao HS, Wang HY, Yan CL, Zhao SJ, Du WH, Wang D, Liu Y, Pang YW, Zhao XM. Effect of vitrification on the mRNA transcriptome of bovine oocytes. Reprod Domest Anim 2017; 52:531-541. [PMID: 28295644 DOI: 10.1111/rda.12942] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 01/17/2017] [Indexed: 12/19/2022]
Abstract
Vitrification has been shown to decrease the developmental capacity of mammalian oocytes, and this is closely associated with the abnormal mRNA expressions of vitrified oocytes. However, the effect of vitrification on transcriptional machinery of oocytes examined by RNA sequencing (RNA-seq) has yet to be defined. In the present study, the mRNA transcriptomes of fresh and vitrified bovine oocytes were analysed by Smart-seq2 with the differently expressed genes determined by DEseq2 (an adjusted p-value of .05 and a minimum fold change of 2). The differentially expressed mRNAs were then searched against the Gene Ontology (GO) and Genomes (KEGG) database. Finally, the mRNA expressions of 10 candidate genes were validated using quantitative real-time PCR (qRT-PCR). Approximately 12,000 genes were detected in each sample of fresh or vitrified oocytes. Of these, the expression levels of 102 genes differed significantly in vitrified groups: 12 genes mainly involved in cell cycle, fertilization and glucose metabolism were upregulated, and 90 genes mainly involved in mitochondria, ribosomal protein, cytoskeleton, transmembrane protein, cell cycle and calcium ions were downregulated. GO analysis showed that these genes were mainly enriched in terms of membrane-bounded organelles, macromolecular complex, and intracellular part. The mRNA expression levels of 10 candidate genes selected randomly were in agreement with the results of the RNA-seq. In conclusion, our results showed that vitrification affected the mRNA transcriptome of bovine oocytes by downregulating genes, which contributed to the decreased developmental capacity of vitrified oocytes. Our findings will be useful in determining approaches to improve the efficiency of vitrified oocytes.
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Affiliation(s)
- N Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - C-Y Li
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - H-B Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - H-S Hao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - H-Y Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - C-L Yan
- Livestock and Poultry Import & Export Dept, China Animal Husbandry Group (CAHG), Beijing, China
| | - S-J Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - W-H Du
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - D Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Y Liu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Y-W Pang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - X-M Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
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Hosseini SM, Nasr-Esfahani MH. What does the cryopreserved oocyte look like? A fresh look at the characteristic oocyte features following cryopreservation. Reprod Biomed Online 2016; 32:377-87. [DOI: 10.1016/j.rbmo.2015.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 11/10/2015] [Accepted: 12/15/2015] [Indexed: 11/26/2022]
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20
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Zhao XM, Hao HS, Du WH, Zhao SJ, Wang HY, Wang N, Wang D, Liu Y, Qin T, Zhu HB. Melatonin inhibits apoptosis and improves the developmental potential of vitrified bovine oocytes. J Pineal Res 2016; 60:132-41. [PMID: 26485053 DOI: 10.1111/jpi.12290] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 10/16/2015] [Indexed: 12/18/2022]
Abstract
Vitrification of oocytes has been shown to be closely associated with increased levels of reactive oxygen species (ROS) and apoptotic events. However, little information is available the effect of melatonin on the ROS levels and apoptotic events in vitrified oocytes. Therefore, we studied the effect of melatonin on ROS and apoptotic events in vitrified bovine oocytes by supplementing vitrification solution or in vitro maturation (IVM) and vitrification solution with 10(-9) m melatonin. We analyzed the ROS, mitochondrial Ca(2+) (mCa(2+) ) and membrane potential (ΔΨm), externalization of phosphatidylserine (PS), caspase-3 activation, DNA fragmentation, mRNA expression levels of Bax and Bcl2 l1, and developmental potential of vitrified bovine oocytes. Vitrified bovine oocytes exhibited increased levels of ROS, mCa(2+) , Bax mRNA, and caspase-3 protein and higher rates of PS externalization and DNA fragmentation, and decreased ΔΨm and Bcl2 l1 mRNA expression level. However, melatonin supplementation in vitrification solution or IVM and vitrification solution significantly decreased the levels of ROS, mCa(2+) , Bax mRNA expression, and caspase-3 protein, and PS externalization and DNA fragmentation rates, and increased the ΔΨm and Bcl2 l1 mRNA expression level in vitrified oocytes, resulting in an increased developmental ability of vitrified bovine oocytes after parthenogenetic activation. The developmental ability of vitrified oocytes with melatonin supplementation in IVM and vitrification solution was similar to that of fresh ones. This study showed that supplementing the IVM and vitrification medium or vitrification medium with 10(-9) m melatonin significantly decreased the ROS level and inhibited apoptotic events of vitrified bovine oocytes, consequently increasing their developmental potential.
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Affiliation(s)
- Xue-Ming Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Hai-Sheng Hao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Wei-Hua Du
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Shan-Jiang Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Hao-Yu Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Na Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Dong Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Yan Liu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Tong Qin
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Hua-Bin Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
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21
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Vitrification of kidney precursors as a new source for organ transplantation. Cryobiology 2015; 70:278-82. [PMID: 25917113 DOI: 10.1016/j.cryobiol.2015.04.007] [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] [Received: 11/17/2014] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 11/21/2022]
Abstract
Kidney transplantation from deceased or living human donors has been limited by donor availability as opposed to the increasing demand, and by the risk of allograft loss rejection and immunosuppressive therapy toxicity. In recent years, xenotransplantation of developed kidney precursor cells has offered a novel solution for the unlimited supply of human donor organs. Specifically, transplantation of kidney precursors in adult hosts showed that intact embryonic kidneys underwent maturation, exhibiting functional properties, and averted humoural rejection post-transplantation from non-immunosuppressed hosts. Even if supply and demand could be balanced using xenotransplants or lab-grown organs from regenerative medicine, the future of these treatments would still be compromised by the ability to physically distribute the organs to patients in need and to produce these products in a way that allows adequate inventory control and quality assurance. Kidney precursors originating from fifteen-day old rabbit embryos were vitrified using Cryotop® as a device and VM3 as vitrification solution. After 3 months of storage in liquid nitrogen, 18 kidney precursors were transplanted into non-immunosuppressed adult hosts by laparoscopy surgery. Twenty-one days after allotransplantation, 9 new kidneys were recovered. All the new kidneys recovered exhibited significant growth and mature glomeruli. Having achieved these encouraging results, we report, for the first time, that it is possible to create a long-term biobank of kidney precursors as an unlimited source of organs for transplantation, facilitating the inventory control and distribution of organs.
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Sathanawongs A, Fujiwara K, Kato T, Hirose M, Kamoshita M, Wojcikiewicz RJH, Parys JB, Ito J, Kashiwazaki N. The effect of M-phase stage-dependent kinase inhibitors on inositol 1,4,5-trisphosphate receptor 1 (IP3 R1) expression and localization in pig oocytes. Anim Sci J 2015; 86:138-47. [PMID: 25187116 DOI: 10.1111/asj.12258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 05/02/2014] [Indexed: 02/02/2023]
Abstract
At fertilization, inositol 1,4,5-trisphosphate receptor type 1 (IP3 R1) has a crucial role in Ca(2+) release in mammals. Expression levels, localization and phosphorylation of IP3 R1 are important for its function, but it still remains unclear which molecule(s) regulates IP3 R1 behavior in pig oocytes. We examined whether there was a difference in localization of IP3 R1 after in vitro or in vivo maturation of pig oocytes. In mouse oocytes, large clusters of IP3 R1 were formed in the cortex of the oocyte except in a ring-shaped band of cortex adjacent to the spindle. However, no such clusters of IP3 R1 were observed in pig oocytes and there was no difference in its localization between in vitro and in vivo matured oocytes. We next tried to clarify which factor(s) regulates IP3 R1 localization, phosphorylation and expression using M-phase stage-dependent kinase inhibitors. Our results show that treatments with roscovitine (p34(cdc2) kinase inhibitor) or U0126 (mitogen-activated protein kinase inhibitor) did not affect IP3 R1 expression or localization in pig oocytes, although the latter strongly inhibited phosphorylation. However, treatment with BI-2536, an inhibitor of polo-like kinase 1 (Plk1), dramatically decreased the expression level of IP3 R1 in pig oocytes in a dose-dependent manner. From these results, it is suggested that Plk1 is involved in the regulation of IP3 R1 expression in pig oocytes.
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Affiliation(s)
- Anucha Sathanawongs
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand; Laboratory of Animal Reproduction, Graduate School of Veterinary Sciences, Azabu University, Sagamihara, Japan
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First pregnancy and live birth from vitrified rabbit oocytes after intraoviductal transfer and in vivo fertilization. Theriogenology 2014; 82:599-604. [DOI: 10.1016/j.theriogenology.2014.05.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/22/2014] [Accepted: 05/24/2014] [Indexed: 11/20/2022]
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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]
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Shibao Y, Fujiwara K, Kawasaki Y, Matsumura K, Hyon SH, Ito J, Kashiwazaki N. The effect of a novel cryoprotective agent, carboxylated ε-poly-l-lysine, on the developmental ability of re-vitrified mouse embryos at the pronuclear stage. Cryobiology 2014; 68:200-4. [DOI: 10.1016/j.cryobiol.2014.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 01/14/2014] [Indexed: 12/28/2022]
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Woods SE, Qi P, Rosalia E, Chavarria T, Discua A, Mkandawire J, Fox JG, García A. Laser-assisted in vitro fertilization facilitates fertilization of vitrified-warmed C57BL/6 mouse oocytes with fresh and frozen-thawed spermatozoa, producing live pups. PLoS One 2014; 9:e91892. [PMID: 24618785 PMCID: PMC3950285 DOI: 10.1371/journal.pone.0091892] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 02/17/2014] [Indexed: 11/18/2022] Open
Abstract
The utility of cryopreserved mouse gametes for reproduction of transgenic mice depends on development of assisted reproductive technologies, including vitrification of unfertilized mouse oocytes. Due to hardening of the zona pellucida, spermatozoa are often unable to penetrate vitrified-warmed (V-W) oocytes. Laser-assisted in vitro fertilization (LAIVF) facilitates fertilization by allowing easier penetration of spermatozoa through a perforation in the zona. We investigated the efficiency of V-W C57BL/6NTac oocytes drilled by the XYClone laser, compared to fresh oocytes. By using DAP213 for cryoprotection, 83% (1,470/1,762) of vitrified oocytes were recovered after warming and 78% were viable. Four groups were evaluated for two-cell embryo and live offspring efficiency: 1) LAIVF using V-W oocytes, 2) LAIVF using fresh oocytes, 3) conventional IVF using V-W oocytes and 4) conventional IVF using fresh oocytes. First, the groups were tested using fresh C57BL/6NTac spermatozoa (74% motile, 15 million/ml). LAIVF markedly improved the two-cell embryo efficiency using both V-W (76%, 229/298) and fresh oocytes (69%, 135/197), compared to conventional IVF (7%, 12/182; 6%, 14/235, respectively). Then, frozen-thawed C57BL/6NTac spermatozoa (35% motile, 15 million/ml) were used and LAIVF was again found to enhance fertilization efficiency, with two-cell embryo rates of 87% (298/343) using V-W oocytes (P<0.05, compared to fresh spermatozoa), and 73% (195/266) using fresh oocytes. Conventional IVF with frozen-thawed spermatozoa using V-W (6%, 10/168) and fresh (5%, 15/323) oocytes produced few two-cell embryos. Although live offspring efficiency following embryo transfer was greater with conventional IVF (35%, 18/51; LAIVF: 6%, 50/784), advantage was seen with LAIVF in live offspring obtained from total oocytes (5%, 50/1,010; conventional IVF: 2%, 18/908). Our results demonstrated that zona-drilled V-W mouse oocytes can be used for IVF procedures using both fresh and frozen-thawed spermatozoa, producing live pups. The ability to cryopreserve mouse gametes for LAIVF may facilitate management of large-scale transgenic mouse production facilities.
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Affiliation(s)
- Stephanie E. Woods
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Peimin Qi
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Elizabeth Rosalia
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Tony Chavarria
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Allan Discua
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - John Mkandawire
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - James G. Fox
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Alexis García
- Transgenic Core Facility, Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail:
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Efficient production of live offspring from mouse oocytes vitrified with a novel cryoprotective agent, carboxylated ε-poly-L-lysine. PLoS One 2013; 8:e83613. [PMID: 24376724 PMCID: PMC3871522 DOI: 10.1371/journal.pone.0083613] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 11/05/2013] [Indexed: 12/02/2022] Open
Abstract
In cryopreservation of mammalian germ cells, unfertilized oocytes are one of the most available stages because these cryopreserved oocytes can be used for assisted reproductive technologies, including in vitro fertilization (IVF) and intracytoplasmic sperm injection. However, it has been generally reported that the fertility and developmental ability of the oocytes are reduced by cryopreservation. Therefore further improvement will be required. Very recently, a new cryoprotective agent (CPA), called as carboxylated ε-poly-L-lysine (COOH-PLL), has been developed to reduce physical and physiological damage by cryopreservation in mammalian stem cells. However, it is unclear the effect of COOH-PLL on fertility and developmental ability of vitrified oocytes. In this study, we used COOH-PLL as a CPA with ethylene glycol (EG) for vitrification of mouse oocytes. Cumulus-oocyte complexes (COCs) were collected from ICR mice and then vitrified with Cryotop using different concentration of COOH-PLL and EG. A combined treatment with COOH-PLL and EG showed high survival rate (more than 90%) of vitrified-warmed COCs after in vitro fertilization. In addition, the fertility and developmental ability of COCs vitrified with E20P10 [EG 20% (v/v) and COOH-PLL 10% (w/v)] or E15P15 group (EG 15% and COOH-PLL 15%) were significantly higher than those with E10P20 (EG10% and COOH-PLL 20%) or P30 group (PLL30%). The vitrified COCs in E20P10 group developed to term at a high success rate (46.2%) and it was significantly higher than that in control (E30) group (34.8%). Our present study demonstrated for the first time that COOH-PLL is effective for vitrification of mouse oocytes.
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Nakagata N, Takeo T, Fukumoto K, Kondo T, Haruguchi Y, Takeshita Y, Nakamuta Y, Matsunaga H, Tsuchiyama S, Ishizuka Y, Araki K. Applications of cryopreserved unfertilized mouse oocytes for in vitro fertilization. Cryobiology 2013; 67:188-92. [PMID: 23846105 DOI: 10.1016/j.cryobiol.2013.06.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 05/27/2013] [Accepted: 06/26/2013] [Indexed: 10/26/2022]
Abstract
Since the first successful reports into oocyte freezing, many papers concerning the cryopreservation of mouse oocytes have been published. However, a simple and practical cryopreservation method for unfertilized C57BL/6 mouse oocytes, and an IVF system using these cryopreserved oocytes have yet to be established, in spite of the fact that C57BL/6 is the prevalent inbred strain and is used for large-scale knockout programs. In this study, unfertilized C57BL/6 mouse oocytes were cryopreserved via a simple vitrification method. After warming, IVF was performed using cryopreserved unfertilized oocytes and fresh sperm, cryopreserved unfertilized oocytes and cold-stored sperm, cryopreserved unfertilized oocytes and frozen sperm (C57BL/6 strain sperm), and cryopreserved unfertilized oocytes and frozen sperm derived from GEM strains (C57BL/6 background GEM strains). Nearly all of the cryopreserved oocytes were recovered, of which over 90% were morphologically normal. Those oocytes were then used for in vitro fertilization, resulting in 72-97% of oocytes developing into 2-cell embryos. A portion of the 2-cell embryos were transferred to recipients, resulting in live young being produced from 32-49% of the embryos. In summary, we established the simple and practical method of mouse oocyte vitrification with high survivability and developmental ability and the IVF using the vitrified-warmed oocytes with fresh, cold-stored or cryopreserved sperm with high fertility.
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Affiliation(s)
- Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, 2-2-1 Honjo, Kumamoto 860-0811, Japan.
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