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Gonzalez‐Plaza A, Brullo C, Cambra JM, Garcia M, Iacono E, Parrilla I, Gil MA, Martinez EA, Martinez CA, Cuello C. Equilibration time with cryoprotectants, but not melatonin supplementation during in vitro maturation, affects viability and metaphase plate morphology of vitrified porcine mature oocytes. Reprod Domest Anim 2022; 57 Suppl 5:58-63. [PMID: 35567517 PMCID: PMC9790282 DOI: 10.1111/rda.14158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/12/2022] [Indexed: 12/30/2022]
Abstract
The aims of this study were to investigate the effects of different equilibration times with cryoprotectants on viability and metaphase plate morphology of vitrified-warmed porcine mature oocytes (Experiment 1) and to evaluate the effects of supplementation with 10-9 M melatonin during in vitro maturation on these parameters (Experiment 2). In Experiment 1, 2,392 mature oocytes were vitrified using different equilibration times of oocytes with cryoprotectants (3, 10, 15, 20, 30, 40, 60 and 80 min). Fresh oocytes matured in vitro for 44 hr (n = 509) were used as controls. In Experiment 2, a total of 573 COCs were used. COCs were matured with 10-9 M melatonin supplementation or without melatonin (control). Some oocytes from each group were vitrified with a 60-min equilibration time with cryoprotectants according to the results of Experiment 1. The remaining oocytes from each maturation group were used as fresh control groups. In both experiments, oocytes were stained with 2',7'-dichlorodihydrofuorescein diacetate and Hoechst 33342 to assess viability and metaphase plate morphology, respectively. Vitrification and warming affected (p < .01) oocyte viability compared with controls, which were all viable after 44 hr of IVM. In Experiment 1, the longer the equilibration time with cryoprotectants, the higher the viability. Oocytes equilibrated for 60 and 80 min had the highest (p < .05) viability and similar metaphase plate characteristics to the fresh control oocytes. In Experiment 2, supplementation with melatonin during in vitro maturation had no effect on oocyte viability or metaphase plate morphology of vitrified-warmed oocytes. In conclusion, under our experimental conditions, vitrified porcine mature oocytes equilibrated with cryoprotectants for 60 or 80 min exhibited the highest viability and similar metaphase plate characteristics to fresh controls. Furthermore, supplementation with 10-9 M melatonin during in vitro maturation had no effect on these parameters.
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Affiliation(s)
- Alejandro Gonzalez‐Plaza
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
| | - Cristiano Brullo
- Department of Veterinary Medical Sciences and CIRI‐SDVUniversity of BolognaBolognaItaly
| | - Josep M. Cambra
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
| | - Manuela Garcia
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
| | - Eleonora Iacono
- Department of Veterinary Medical Sciences and CIRI‐SDVUniversity of BolognaBolognaItaly
| | - Inmaculada Parrilla
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
| | - Maria Antonia Gil
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
| | - Emilio A. Martinez
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
| | - Cristina A. Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health SciencesLinköping UniversityLinköpingSweden
| | - Cristina Cuello
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Excellence Campus for Higher Education and Research (CMN)University of MurciaMurciaSpain,Institute for Biomedical Research of Murcia (IMIB‐Arrixaca)MurciaSpain
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Rao Y, Xu N, Li S, Hu J, Jiao R, Hu P, Lin H, Lu C, Lin X, Dai Z, Zhang Y, Zhu X, Wang Y. PE-1, Encoding Heme Oxygenase 1, Impacts Heading Date and Chloroplast Development in Rice ( Oryza sativa L.). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7249-7257. [PMID: 31244201 DOI: 10.1021/acs.jafc.9b01676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The duration of the rice growth phase has always been an important target trait. The identification of mutations in rice that alter these processes and result in a shorter growth phase could have potential benefits for crop production. In this study, we isolated an early aging rice mutant, pe-1, with light green leaves, using γ-mutated indica rice cultivar and subsequent screening methods, which is known as the phytochrome synthesis factor Se5 that controls rice flowering. The pe-1 plant is accompanied by a decreased chlorophyll content, an enhanced photosynthesis, and a decreased pollen fertility. PE-1, a close homologue of HY1, is localized in the chloroplast. Expression pattern analysis indicated that PE-1 was mainly expressed in roots, stems, leaves, leaf sheaths, and young panicles. The knockout of PE-1 using the CRISPR/Cas9 system decreased the chlorophyll content and downregulated the expression of PE-1-related genes. Furthermore, the chloroplasts of pe-1 were filled with many large-sized starch grains, and the number of osmiophilic granules (a chloroplast lipid reservoir) was significantly decreased. Altogether, our findings suggest that PE-1 functions as a master regulator to mediate in chlorophyll biosynthesis and photosynthetic pathways.
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Affiliation(s)
- Yuchun Rao
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Na Xu
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Sanfeng Li
- State Key Laboratory of Rice Biology , China National Rice Research Institute , Hangzhou , Zhejiang 310006 , People's Republic of China
| | - Juan Hu
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Ran Jiao
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Ping Hu
- State Key Laboratory of Rice Biology , China National Rice Research Institute , Hangzhou , Zhejiang 310006 , People's Republic of China
| | - Han Lin
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Caolin Lu
- State Key Laboratory of Rice Biology , China National Rice Research Institute , Hangzhou , Zhejiang 310006 , People's Republic of China
| | - Xue Lin
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Zhijun Dai
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Yilan Zhang
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua , Zhejiang 321004 , People's Republic of China
| | - Xudong Zhu
- State Key Laboratory of Rice Biology , China National Rice Research Institute , Hangzhou , Zhejiang 310006 , People's Republic of China
| | - Yuexing Wang
- State Key Laboratory of Rice Biology , China National Rice Research Institute , Hangzhou , Zhejiang 310006 , People's Republic of China
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KALITA KRISHNA, DEKA BC, BISWAS RK, BARUA PM, BORAH P, DUTTA DJ, DAS SK. Effect of type and concentration of cryoprotectant on post-thaw survivability of vitrified porcine follicular oocytes. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2018. [DOI: 10.56093/ijans.v88i11.85029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A total of 950 and 510 oocytes with two or more cumulus cell layers adhered to zona pellucida obtained by aspiration from follicles (2–8 mm dia) of 315 and 135 abattoir porcine ovaries, respectively, were utilized in the study to find the effect of cryoprotectant and concentration on post-thaw survivability of porcine follicular oocytes. Vitrified post-thaw oocytes with intact zona pellucida and vitelline membrane, normal spherical shape and dark and evenly granulated cytoplasm under a stereo-zoom microscope were considered as viable. Out of the 10 cryoprotectant treatments i.e. ethylene glycol (EG), propylene glycol (PG), dimethyl sulphoxide (DMSO), glycerol (GL), EG + PG, EG + DMSO, EG + GL, PG + DMSO, PG + GL and DMSO + GL used for vitrification of oocytes at a concentration of 35%, the post-thaw survivability rate was the highest in EG +DMSO followed by EG + PG group which had significantly higher mean post-thaw survived oocytes as compared to GL, PG + DMSO, PG + GL and DMSO + GL groups. Exposing the oocytes to 30, 35 and 40% of EG + DMSO and EG + PG yielded no significant difference in post-thaw survivability rate of vitrified oocytes, although the highest value was obtained with 35%. It was concluded that 35 to 40% EG + DMSO yielded efficient vitrification of porcine oocytes.
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Casillas F, Betancourt M, Cuello C, Ducolomb Y, López A, Juárez-Rojas L, Retana-Márquez S. An efficiency comparison of different in vitro fertilization methods: IVF, ICSI, and PICSI for embryo development to the blastocyst stage from vitrified porcine immature oocytes. Porcine Health Manag 2018; 4:16. [PMID: 30123521 PMCID: PMC6088397 DOI: 10.1186/s40813-018-0093-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/20/2018] [Indexed: 12/30/2022] Open
Abstract
Background Most studies carried out to evaluate recovery and development after porcine oocyte vitrification, reported better rates when cryopreserved in embryonic development stages or zygotes, but not in immature oocytes. For this reason, many studies are performed to improve immature oocyte vitrification protocols testing the use of different cryoprotectant concentrations, cooling devices, incubation times; but only a few of them have evaluated which fertilization procedure enhances blastocyst rates in vitrified oocytes. Therefore, this study was aimed to evaluate: 1) if the sperm selection with hyaluronic acid (HA) or polyvinylpyrrolidone (PVP) before injection could play a key role in increasing fertilization and blastocyst formation and 2) the embryo developmental ability and blastocyst production of porcine immature oocytes retrieved after vitrification-warming and co-cultured with granulosa cells during IVM, using different fertilization techniques: in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI) and conventional ICSI with hyaluronic acid (HA) sperm selection, known as physiological intracytoplasmic sperm injection (PICSI) and. Results Sperm selected with HA-PICSI displayed a higher percentage of live/acrosome reacted status compared to those in control and exposed to PVP. Higher dead/acrosome reacted rates were obtained after PVP exposure compared to control and HA. In oocytes, viability significantly decreased after IVM in vitrified oocytes. Besides, IVM rates were not different between control denuded oocytes cultured with granulosa cells (DO-GC) and vitrified oocytes. Regarding fertilization parameters, IVF showed higher percentages of total fertilization rate than those obtained by ICSI and PICSI. However, results demonstrate that PICSI fertilization increased the blastocysts formation rate in control DO-GC and vitrified oocytes compared to IVF and ICSI. Conclusions To achieve high blastocyst formation rates from vitrified GV oocytes, it is recommended that sperm should be selected with HA instead of PVP before injection since high viability and acrosome reaction rates were obtained. Also, PICSI fertilization was the best method to produce higher blastocyst rates compared to the IVF and ICSI procedures.
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Affiliation(s)
- Fahiel Casillas
- 1Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico.,2Doctorado en Ciencias Biológicas y de la Salud. Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Miguel Betancourt
- 3Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Cristina Cuello
- 4Departamento de Medicina y Cirugía Animal, Universidad de Murcia, 30100 Espinardo, Spain
| | - Yvonne Ducolomb
- 3Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Alma López
- 3Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Lizbeth Juárez-Rojas
- 1Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Socorro Retana-Márquez
- 1Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
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In-vitro development of vitrified–warmed bovine oocytes after activation may be predicted based on mathematical modelling of cooling and warming rates during vitrification, storage and sample removal. Reprod Biomed Online 2018; 36:500-507. [DOI: 10.1016/j.rbmo.2018.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 01/02/2018] [Accepted: 01/09/2018] [Indexed: 01/26/2023]
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6
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Wang C, Xu H, Xie L, Lu Y, Yang X, Lu S, Lu K. Stability of the cytoskeleton of matured buffalo oocytes pretreated with cytochalasin B prior to vitrification. Cryobiology 2016; 72:274-82. [DOI: 10.1016/j.cryobiol.2016.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/14/2016] [Accepted: 03/14/2016] [Indexed: 11/27/2022]
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Gasparrini B, Di Francesco S, Rubessa M, Velotto S, Mariotti E, De Blasi M. Structural changes of in vitro matured buffalo and bovine oocytes following cryopreservation. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2009.s2.90] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Bianca Gasparrini
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti,Università di Napoli “Federico II”, Italy
| | - Serena Di Francesco
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti,Università di Napoli “Federico II”, Italy
| | - Marcello Rubessa
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti,Università di Napoli “Federico II”, Italy
| | - Salvatore Velotto
- Dipartimento di Scienze del Suolo, della Pianta, dell’Ambiente e delle Produzioni Animali,Università di Napoli “Federico II”, Italy
| | - Evelina Mariotti
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti,Università di Napoli “Federico II”, Italy
| | - Marina De Blasi
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti,Università di Napoli “Federico II”, Italy
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Quan GB, Wu GQ, Wang YJ, Ma Y, Lv CR, Hong QH. Meiotic maturation and developmental capability of ovine oocytes at germinal vesicle stage following vitrification using different cryodevices. Cryobiology 2016; 72:33-40. [DOI: 10.1016/j.cryobiol.2015.11.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 11/26/2015] [Accepted: 11/27/2015] [Indexed: 11/28/2022]
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9
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Somfai T, Men NT, Noguchi J, Kaneko H, Kashiwazaki N, Kikuchi K. Optimization of cryoprotectant treatment for the vitrification of immature cumulus-enclosed porcine oocytes: comparison of sugars, combinations of permeating cryoprotectants and equilibration regimens. J Reprod Dev 2015; 61:571-9. [PMID: 26411536 PMCID: PMC4685224 DOI: 10.1262/jrd.2015-089] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Our aim was to optimize the cryoprotectant treatment for the preservation of immature porcine cumulus-oocyte
complexes (COCs) by solid surface vitrification. In each experiment, the vitrification solution consisted of
50 mg/ml polyvinyl pyrrolidone, 0.3 M of the actual sugar and in total 35% (v/v) of the actual permeating
cryoprotectant (pCPA) combination. After warming, the COCs were subjected to in vitro
maturation, fertilization and embryo culture. In Experiment 1, trehalose and sucrose were equally effective
during vitrification and warming in terms of facilitating oocyte survival and subsequent embryo development.
In Experiment 2, when equilibration was performed at 38.5 C in a total of 4% (v/v) pCPA for 15 min, the
combination of ethylene glycol and propylene glycol (EG + PG = 1:1) was superior to EG and dimethyl sulfoxide
(EG + DMSO = 1:1) in terms of oocyte survival after vitrification and the quality of resultant blastocysts. In
Experiment 3, equilibration in 4% (v/v) pCPA for 15 min before vitrification was superior to that in 15% (v/v)
CPA for 5 min for achievement of high survival rates irrespective of the pCPA combination used. In Experiment
4, when equilibration was performed in 4% EG + PG for 5 min, 15 min or 25 min, there was no difference in
oocyte survival and subsequent embryo development after vitrification and warming; however, the developmental
competence of cleaved embryos was tendentiously reduced when equilibration was performed for 25 min. In
conclusion, trehalose and sucrose were equally effective in facilitating vitrification, and the optimum pCPA
treatment was 5–15 min equilibration in 4% (v/v) of EG + PG followed by vitrification in 35% (v/v) EG +
PG.
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Affiliation(s)
- Tamás Somfai
- NARO Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
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Nohalez A, Martinez C, Gil M, Almiñana C, Roca J, Martinez E, Cuello C. Effects of two combinations of cryoprotectants on the in vitro developmental capacity of vitrified immature porcine oocytes. Theriogenology 2015; 84:545-52. [DOI: 10.1016/j.theriogenology.2015.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/24/2015] [Accepted: 04/11/2015] [Indexed: 11/29/2022]
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Jo JW, Lee JR, Jee BC, Suh CS, Kim SH. Exposing mouse oocytes to necrostatin 1 during in vitro maturation improves maturation, survival after vitrification, mitochondrial preservation, and developmental competence. Reprod Sci 2014; 22:615-25. [PMID: 25394642 DOI: 10.1177/1933719114556482] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Necrostatin 1 (Nec1) is widely used in disease models to examine the contribution of receptor-interacting protein kinase 1 in cell death. The biological actions of Nec1 are blocking necrotic cell death. The purpose of this study was to investigate whether adding Nec1 into in vitro maturation (IVM) media, followed by vitrification procedures, could enhance the survival and developmental competency of oocytes. Germinal vesicle oocytes were matured in IVM medium containing 2 different doses of Nec1 (0.5 and 1 μmol/L). After IVM, the oocytes were vitrified using a 2-step exposure to equilibrium and vitrification solutions. After warming, the rates of survival, fertilization, embryonic development up to blastocyst in vitro, morphology of spindle and chromosome, membrane integrity, mitochondria integrity, and several gene expressions were evaluated. The survival and developmental competency of oocytes were higher in the 1 μmol/L Nec1-treated group than control. The proportion with intact spindles/chromosomes and stable membranes was similar in all the groups. The mitochondrial integrity of all Nec1-treated groups showed a higher score with strong staining. The 1 μmol/L Nec1 showed significantly increased expressions of Mad2, Gdf9, and Bcl2. The Cirp level had a tendency to be downregulated in the 0.5 µmol/L Nec1 but upregulated in the 1 μmol/L Nec1, compared with the control. The Mtgenome expressions were significantly decreased in both Nec1 groups. The supplementation of 1 μmol/L Nec1 into the IVM medium could be beneficial for the survival and development of immature oocytes after vitrification.
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Affiliation(s)
- Jun Woo Jo
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, Seoul, Korea
| | - Jung Ryeol Lee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Byung Chul Jee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, Seoul, Korea Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Suk Suh
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, Seoul, Korea Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Seok Hyun Kim
- Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, Seoul, Korea Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Korea
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Wu G, Jia B, Mo X, Liu C, Fu X, Zhu S, Hou Y. Nuclear maturation and embryo development of porcine oocytes vitrified by cryotop: effect of different stages of in vitro maturation. Cryobiology 2013; 67:95-101. [PMID: 23742797 DOI: 10.1016/j.cryobiol.2013.05.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/23/2013] [Accepted: 05/24/2013] [Indexed: 11/16/2022]
Abstract
The present study was designed to evaluate the viability, meiotic competence and subsequent development of porcine oocytes vitrified using the cryotop method at different stages of in vitro maturation (IVM). Cumulus-oocyte complexes (COCs) were cultured in IVM medium supplemented with 1mM dibutyryl cAMP (dbcAMP) for 22 h and then for an additional 22 h without dbcAMP in the medium. Germinal vesicle (GV), germinal vesicle breakdown (GVBD), metaphase I (MI), anaphase I/telophase I (AI/TI) and metaphase II (MII) were found to occur predominantly at 0-22, 26, 32, 38 and 44 h of IVM, respectively. Oocytes were exposed to cryoprotectant (CPA) or vitrified after different durations of IVM (0, 22, 26, 32, 38 and 44 h). After CPA exposure and vitrification, surviving oocytes that were treated before completion of the 44 h maturation period were placed back into IVM medium for the remaining maturation period, and matured oocytes were incubated for 2h. CPA treatment did not affect the viability of oocytes matured for 26, 32, 38 or 44 h, but significantly decreased survival rate of oocytes matured for 0 or 22 h. CPA treatment had no effect on the ability of surviving oocytes to develop to the MII stage regardless of the stage during IVM; however, blastocyst formation following PA was severely lower (P<0.05) than that in the control. At 2h post-warming, the survival rates of oocytes vitrified at 26, 32, 38 and 44 h of IVM were similar but were higher (P<0.05) than those of oocytes vitrified at 0 or 22 h of IVM. The MII rates of surviving oocytes vitrified at 0 and 38 h of IVM did not differ from the control and were higher (P<0.05) than those of oocytes vitrified at 22, 26 or 32 h of IVM. After parthenogenetic activation (PA), both cleavage and blastocyst rates of vitrified oocytes matured for 22, 26, 32, 38 and 44 h did not differ, but all were lower (P<0.05) than those matured 0 h. In conclusion, our data indicate that survival, nuclear maturation and subsequent development of porcine oocytes may be affected by their stage of maturation at the time of vitrification; a higher percentage of blastocyst formation can be obtained from GV oocytes vitrified before the onset of maturation.
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Affiliation(s)
- Guoquan Wu
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, People's Republic of China
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Gomis J, Cuello C, Sanchez-Osorio J, Gil M, Parrilla I, Angel M, Vazquez J, Roca J, Martinez E. Forskolin improves the cryosurvival of in vivo-derived porcine embryos at very early stages using two vitrification methods. Cryobiology 2013; 66:144-50. [DOI: 10.1016/j.cryobiol.2012.12.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 11/22/2012] [Accepted: 12/19/2012] [Indexed: 11/26/2022]
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14
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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.
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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
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A chronologic review of mature oocyte vitrification research in cattle, pigs, and sheep. Theriogenology 2012; 78:1709-19. [DOI: 10.1016/j.theriogenology.2012.06.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Revised: 05/28/2012] [Accepted: 05/30/2012] [Indexed: 11/21/2022]
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16
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Abstract
SummaryOne of the greatest challenges for reproductive cryobiologists today is to develop an efficient cryopreservation method for human and domestic animal oocytes. The objective of the present study was to optimize a low toxicity solution called VM3 to vitrify porcine oocytes using an open pulled straw (OPS) device and to evaluate the effects on viability, chromosomal organization and cortical granules distribution. Two experiments were conducted in this study. Firstly, we determined the minimum concentration of cryoprotectant present in the VM3 solution required (7.6 M) for vitrification using an OPS device. The appearance of opacity was observed when using a cooling solution at –196°C; no observable opacity was noted as vitrification. In addition, the ultrastructure of oocytes in VM3 or VM3 optimized solution was examined using cryo-scanning electron microscopy. The minimum total cryoprotectant concentration present in VM3 solution necessary for apparent vitrification was 5.6 M when combined with use of an OPS device. Use of both vitrification solutions showed a characteristic plasticized surface. In the second experiment, the relative cytotoxicity of vitrification solutions (VM3 and VM3 optimized) was studied. Oocyte viability, chromosomal organization and the cortical granules distribution were assessed by fluorescent stain. After warming, oocyte survival rate was similar to that of fresh oocytes. The vitrification process significantly reduced correct chromosomal organization and cortical granules distribution rates compared with the fresh oocytes group. However, correct chromosomal organization and cortical granules distribution rates did not differ among oocytes placed in different vitrification solutions. In conclusion, our data demonstrated that the VM3 solution can be optimized and that reduction in concentration to 5.6 M enabled vitrification of oocytes with an OPS device, however use of the VM3 optimised solution had no beneficial effect on vitrification of porcine oocytes.
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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]
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18
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Liang YY, Srirattana K, Phermthai T, Somfai T, Nagai T, Parnpai R. Effects of vitrification cryoprotectant treatment and cooling method on the viability and development of buffalo oocytes after intracytoplasmic sperm injection. Cryobiology 2012; 65:151-6. [DOI: 10.1016/j.cryobiol.2012.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 03/08/2012] [Accepted: 04/19/2012] [Indexed: 12/01/2022]
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Jo JW, Jee BC, Suh CS, Kim SH. The beneficial effects of antifreeze proteins in the vitrification of immature mouse oocytes. PLoS One 2012; 7:e37043. [PMID: 22649508 PMCID: PMC3359366 DOI: 10.1371/journal.pone.0037043] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Accepted: 04/12/2012] [Indexed: 11/19/2022] Open
Abstract
Antifreeze proteins (AFPs) are a class of polypeptides that permit organismal survival in sub-freezing environments. The purpose of this study was to investigate the effect of AFP supplementation on immature mouse oocyte vitrification. Germinal vesicle-stage oocytes were vitrified using a two-step exposure to equilibrium and vitrification solution in the presence or absence of 500 ng/mL of AFP III. After warming, oocyte survival, in vitro maturation, fertilization, and embryonic development up to the blastocyst stage were assessed. Spindle and chromosome morphology, membrane integrity, and the expression levels of several genes were assessed in in vitro matured oocytes. The rate of blastocyst formation was significantly higher and the number of caspase-positive blastomeres was significantly lower in the AFP-treated group compared with the untreated group. The proportion of oocytes with intact spindles/chromosomes and stable membranes was also significantly higher in the AFP group. The AFP group showed increased Mad2, Hook-1, Zar1, Zp1, and Bcl2 expression and lower Eg5, Zp2, Caspase6, and Rbm3 expression compared with the untreated group. Supplementation of the vitrification medium with AFP has a protective effect on immature mouse oocytes, promoting their resistance to chilling injury. AFPs may preserve spindle forming ability and membrane integrity at GV stage. The fertilization and subsequent developmental competence of oocytes may be associated with the modulation of Zar1, Zp1/Zp2, Bcl2, Caspase6, and Rbm3.
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Affiliation(s)
- Jun Woo Jo
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
- Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University Seoul, Korea
| | - Byung Chul Jee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Suk Suh
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
- * E-mail:
| | - Seok Hyun Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Korea
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SOMFAI T, KIKUCHI K, NAGAI T. Factors Affecting Cryopreservation of Porcine Oocytes. J Reprod Dev 2012; 58:17-24. [DOI: 10.1262/jrd.11-140n] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Tamás SOMFAI
- National Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
| | - Kazuhiro KIKUCHI
- National Institute of Agrobiological Sciences, Ibaraki 305-8602, Japan
| | - Takashi NAGAI
- National Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
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21
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de Leon P, Campos V, Corcini C, Santos E, Rambo G, Lucia T, Deschamps J, Collares T. Cryopreservation of immature equine oocytes, comparing a solid surface vitrification process with open pulled straws and the use of a synthetic ice blocker. Theriogenology 2012; 77:21-7. [DOI: 10.1016/j.theriogenology.2011.07.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 05/06/2011] [Accepted: 07/04/2011] [Indexed: 11/29/2022]
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22
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Liang Y, Ning FY, Du WJ, Wang CS, Piao SH, An TZ. The type and extent of injuries in vitrified mouse oocytes. Cryobiology 2011; 64:97-102. [PMID: 22202671 DOI: 10.1016/j.cryobiol.2011.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 11/22/2011] [Accepted: 12/12/2011] [Indexed: 11/29/2022]
Abstract
To improve the vitrification of mouse oocytes using straws, we attempted to estimate the type and extent of injuries during vitrification with a vitrification solution EAFS10/10. Injuries in oocytes were assessed based on cellular viability, the integrity of the plasma membrane, the status of the meiotic spindle/chromosomes, and morphological appearance. For morphologically normal oocytes, the ability to be fertilized and to develop into blastocysts was examined. Morphological assessment revealed 15% of oocytes to be injured by intracellular ice formed during vitrification, and 10% by osmotic swelling during removal of the cryoprotectant. When assessed by the status of spindles/chromosomes, the most sensitive criterion, damage was found in 16% of oocytes without any treatment. This value was similar to the proportion of fresh oocytes that did not cleave after insemination (13%). On exposure to EAFS10/10, the spindles/chromosomes were affected in 33% of oocytes. The exposure reduced the rate of cleavage by 18% points and the rate of development into blastocysts by 19 points. Vitrification reduced these rates by 15% and 36% points, respectively. Although the mechanism responsible for this moderate toxic effect on developmental ability is not known, information obtained in the present study will be useful to develop a practical method for the vitrification of mouse oocytes using straws.
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Affiliation(s)
- Yang Liang
- The Laboratory of Animal Development, College of Life Science, Northeast Forestry University, Harbin, China
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Jo JW, Jee BC, Lee JR, Suh CS. Effect of antifreeze protein supplementation in vitrification medium on mouse oocyte developmental competence. Fertil Steril 2011; 96:1239-45. [PMID: 21917250 DOI: 10.1016/j.fertnstert.2011.08.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 08/11/2011] [Accepted: 08/16/2011] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the effect of antifreeze protein (AFP) supplementation during mouse oocyte vitrification on the survival, fertilization and embryonic development. DESIGN Animal study. SETTING University laboratory. ANIMAL(S) BDF-1 mice. INTERVENTION(S) In vivo-matured metaphase II oocytes were vitrified with the use of CryoTop by two-step exposure to equilibrium and vitrification solution supplemented or not with 500 ng/mL AFP III. MAIN OUTCOME MEASURE(S) Postwarming survival, fertilization, embryonic development up to blastocyst in vitro, morphology of spindle and chromosome, membrane integrity, adenosine triphosphate (ATP) contents, and several gene expressions. RESULT(S) In the AFP-treated group, blastocyst formation rate was significantly higher and blastomere count with positive caspase was significantly lower compared with the nontreated group. Rate of intact spindle/chromosome, stable membrane, and ATP contents were significantly higher in AFP group. AFP group showed higher Mad2 and lower Eg5 gene expression. Both vitrification groups showed increased Hsf1, Zar1, and Zp1/Zp2 expression and decreased Hook1 and Zp3 expression compared with fresh control samples. CONCLUSION(S) Supplementation of AFP in vitrification medium has a protective effect on mouse oocytes for chilling injury; it can preserve spindle/membrane integrity and intracellular ATP contents. More stable spindle integrity in the AFP group may be associated with higher Mad2 and lower Eg5 gene expression.
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Affiliation(s)
- Jun Woo Jo
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Gyeonggi, South Korea
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24
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Moawad AR, Choi I, Zhu J, Campbell KH. Ovine Oocytes Vitrified at Germinal Vesicle Stage as Cytoplast Recipients for Somatic Cell Nuclear Transfer (SCNT). Cell Reprogram 2011; 13:289-96. [DOI: 10.1089/cell.2010.0089] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Adel R. Moawad
- Animal Development and Biotechnology Group, Division of Animal Sciences, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, United Kingdom
| | - Inchul Choi
- Animal Development and Biotechnology Group, Division of Animal Sciences, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, United Kingdom
| | - Jie Zhu
- Animal Development and Biotechnology Group, Division of Animal Sciences, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, United Kingdom
| | - Keith H.S. Campbell
- Animal Development and Biotechnology Group, Division of Animal Sciences, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, United Kingdom
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25
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Galeati G, Spinaci M, Vallorani C, Bucci D, Porcu E, Tamanini C. Pig oocyte vitrification by cryotop method: Effects on viability, spindle and chromosome configuration and in vitro fertilization. Anim Reprod Sci 2011; 127:43-9. [DOI: 10.1016/j.anireprosci.2011.07.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2011] [Revised: 06/18/2011] [Accepted: 07/13/2011] [Indexed: 10/18/2022]
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26
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Bao RM, Taketsuru H, Miyano T. Histological and biological assessment of vitrified ovarian follicles from large animals. Reprod Med Biol 2011; 10:211-219. [PMID: 29662357 DOI: 10.1007/s12522-011-0094-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 06/02/2011] [Indexed: 11/25/2022] Open
Abstract
Mammalian ovaries contain mixed populations of follicles at different developmental stages. A combination of vitrification and growth culture of ovarian follicles could provide the desired number of mature eggs from a preserved small amount of ovarian tissues. Secondary and primordial follicles from porcine and bovine ovaries were vitrified in solutions containing ethylene glycol, dimethyl sulfoxide and different concentrations of sucrose, and assessed via histological examination, viability staining, xenografting to immunodeficient mice, and in vitro culturing. Histological examination revealed the damage to oocytes and the damage to follicle components separately. The effects of sucrose in vitrification solutions on the follicles were different depending on the developmental stage of the follicle, oocyte size, cell type in the follicle, and species. Viability staining with fluorescein diacetate was useful to assess the damage to oocytes in secondary follicles. In the xenografts, vitrified bovine primordial and secondary follicles developed to the antral stage, and vitrified porcine primordial follicles developed to the secondary stage. Furthermore, bovine secondary follicles formed antrum-like structures in culture. These results suggest that histological examination and viability staining are valuable for assessing the direct effects of vitrification and warming conditions on follicles and oocytes, while xenografting and in vitro culturing can be useful for evaluating the developmental ability of vitrified follicles and oocytes.
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Affiliation(s)
- Rong-Mei Bao
- Graduate School of Agricultural Science Kobe University Nada-ku 657-8501 Kobe Japan
| | - Hiroaki Taketsuru
- Graduate School of Agricultural Science Kobe University Nada-ku 657-8501 Kobe Japan
| | - Takashi Miyano
- Graduate School of Agricultural Science Kobe University Nada-ku 657-8501 Kobe Japan
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27
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Boutelle S, Lenahan K, Krisher R, Bauman K, Asa C, Silber S. Vitrification of oocytes from endangered Mexican gray wolves (Canis lupus baileyi). Theriogenology 2011; 75:647-54. [DOI: 10.1016/j.theriogenology.2010.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 08/20/2010] [Accepted: 10/02/2010] [Indexed: 10/18/2022]
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28
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NAKAGAWA S, MAEDOMARI N, KIKUCHI K, NAGAI T, MIYANO T, FULKA JR J, MANABE N. Vitrification of Fully Grown and Growing Porcine Oocytes Using Germinal Vesicle Transfer. J Reprod Dev 2011; 57:335-41. [DOI: 10.1262/jrd.10-177h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Shoma NAKAGAWA
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo
- Institute of Animal Science
| | - Naoki MAEDOMARI
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Azabu University
| | - Kazuhiro KIKUCHI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | - Takashi NAGAI
- National Institute of Livestock and Grassland Science
| | - Takashi MIYANO
- Graduate School of Agricultural Science, Kobe University
| | | | - Noboru MANABE
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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29
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Gupta MK, Uhm SJ, Lee HT. Effect of vitrification and beta-mercaptoethanol on reactive oxygen species activity and in vitro development of oocytes vitrified before or after in vitro fertilization. Fertil Steril 2010; 93:2602-7. [PMID: 20303480 DOI: 10.1016/j.fertnstert.2010.01.043] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 01/13/2010] [Accepted: 01/14/2010] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To investigate the effect of vitrification and beta-mercaptoethanol (beta-ME) on reactive oxygen species (ROS) activity and in vitro development of oocytes vitrified before or after in vitro fertilization (IVF). DESIGN Randomized prospective study. SETTING University-based assisted reproductive technology laboratory. ANIMALS(S): Abattoir-derived porcine ovaries. INTERVENTIONS(S) Oocytes were vitrified either before or 4 hours after the end of IVF by solid surface vitrification (SSV) without centrifugation and/or delipation procedure. beta-ME was used to inhibit ROS activity. MAIN OUTCOME MEASURES(S) Viability was evaluated by membrane integrity and esterase enzyme activity using fluorescein diacetate staining while ROS activity was assessed by 2',7'-dichlorofluorescein assay. RESULT(S) Vitrification increased the ROS activity and decreased the viability and in vitro development of vitrified oocytes. Addition of beta-ME to vitrification and culture medium partially annihilated the ROS activity but did not improve the viability of vitrified-warmed oocytes. Furthermore, beta-ME had no effect on improving the fertilization ability of oocytes vitrified at metaphase II stage but significantly increased their ability to cleave. beta-ME also increased the rate of cleavage and blastocyst formation ability of oocytes vitrified 4 hours after the end IVF. CONCLUSION(S) Vitrification increases ROS activity in oocytes that can be partially annihilated by beta-ME to obtain enhanced embryonic development.
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Affiliation(s)
- Mukesh Kumar Gupta
- Department of Animal Biotechnology, Bio-Organ Research Center/Animal Resources Research Center, Konkuk University, Seoul, South Korea
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30
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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]
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31
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Liu J, Mullen S, Meng Q, Critser J, Dinnyes A. Determination of oocyte membrane permeability coefficients and their application to cryopreservation in a rabbit model. Cryobiology 2009; 59:127-34. [DOI: 10.1016/j.cryobiol.2009.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2008] [Revised: 04/22/2009] [Accepted: 06/01/2009] [Indexed: 10/20/2022]
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Abstract
Successful cryopreservation of porcine gametes and embryos has been very challenging due to their sensitivity to cryoinjuries. Although considerable improvements have been achieved in the vitrification of porcine embryos, there has been no offspring born from the vitrified oocytes in this species. Porcine oocytes characteristically contain large amounts of cytoplasmic lipids that are major obstacles limiting efficient cryopreservation. These droplets together with structures such as mitochondria, membranes, cortical granules and basic components of the spindle and cytoskeleton (microtubules and microfilaments) often incur serious damage during cooling and warming. According to recent reports, the proper combinations of permeable and non-permeable cryoprotectants and vitrification with high cooling and warming rates may increase the survival of porcine oocytes. The cryotolerance of porcine oocytes may also be enhanced by removal of the chilling-sensitive lipid droplets, supplementation of cytoskeleton relaxants in vitrification solutions, or high hydrostatic pressure pretreatment of oocytes before cryopreservation. The improvement in cryopreservation methodology for porcine oocytes will no doubt augment other technologies such as pig cloning and the establishment of a gene bank for transgenic pigs.
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Affiliation(s)
- Guang-Bin Zhou
- State Key Laboratory for Agrobiotechnology, China Agricultural University, Haidian District, Beijing 100193, People's Republic of China
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33
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Somfai T, Ozawa M, Noguchi J, Kaneko H, Nakai M, Maedomari N, Ito J, Kashiwazaki N, Nagai T, Kikuchi K. Live Piglets Derived from In Vitro-Produced Zygotes Vitrified at the Pronuclear Stage1. Biol Reprod 2009; 80:42-9. [DOI: 10.1095/biolreprod.108.070235] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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34
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Varga E, Gajdócsi E, Petz Makkosné B, Salamon I, Bali Papp Á. Vitrification of in vitro matured oocytes of Mangalica and Large White pigs. Acta Vet Hung 2008; 56:399-410. [PMID: 18828491 DOI: 10.1556/avet.56.2008.3.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The breeding of Mangalica, a native pig breed in Hungary, had been started in 1833, but this pig breed almost became extinct in Hungary in the past decades. In 1991, the number of sows was only 200. Although in these days the existing Mangalica population consists of more than 6000 animals representing different colour variations, the preservation of this traditional pig breed is still very important. Vitrification is a potential tool for the preservation of gametes and embryos of these animals. The aim of this study was to investigate the effects of vitrification on the developmental competence of Mangalica (M) and Large White (LW) oocytes following fertilisation. The oocytes were vitrified by the Open Pulled Straw (OPS) method using different concentrations of ethylene glycol and dimethyl sulphoxide as cryoprotectants. After rehydration the oocytes underwent in vitro fertilisation; the resultant zygotes were then cultured in vitro for four days to assess embryonic development. In the first experiment, in vitro maturation of M and LW oocytes was compared. No significant difference was observed in the nuclear maturation rate of LW and M oocytes. In the second experiment, the sensitivity of oocytes to vitrification was examined by evaluating oocyte morphology after thawing. A higher percentage of LW oocytes showed normal morphology compared to M oocytes, indicating that Mangalica oocytes are more sensitive to cryoprotectants than Large White oocytes. After warming and in vitro fertilisation, more than 50% of the oocytes started embryonic development and by the end of the incubation period morula stage embryos had developed in both groups. The results show that the OPS vitrification technique is well suited to preserve Mangalica oocytes and from these oocytes morula embryos can be produced.
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Affiliation(s)
- Erika Varga
- 1 University of West Hungary Institute of Animal Sciences H-9200 Mosonmagyaróvár Vár 4 Hungary
| | - Erzsébet Gajdócsi
- 1 University of West Hungary Institute of Animal Sciences H-9200 Mosonmagyaróvár Vár 4 Hungary
| | - Brigitta Petz Makkosné
- 1 University of West Hungary Institute of Animal Sciences H-9200 Mosonmagyaróvár Vár 4 Hungary
| | - Ildikó Salamon
- 1 University of West Hungary Institute of Animal Sciences H-9200 Mosonmagyaróvár Vár 4 Hungary
| | - Ágnes Bali Papp
- 1 University of West Hungary Institute of Animal Sciences H-9200 Mosonmagyaróvár Vár 4 Hungary
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SOMFAI T, KASHIWAZAKI N, OZAWA M, NAKAI M, MAEDOMARI N, NOGUCHI J, KANEKO H, NAGAI T, KIKUCHI K. Effect of Centrifugation Treatment before Vitrification on the Viability of Porcine Mature Oocytes and Zygotes Produced In Vitro. J Reprod Dev 2008; 54:149-55. [DOI: 10.1262/jrd.19150] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Tamás SOMFAI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
- National Livestock Breeding Center
| | | | - Manabu OZAWA
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | - Michiko NAKAI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | | | - Junko NOGUCHI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | - Hiroyuki KANEKO
- Division of Animal Sciences, National Institute of Agrobiological Sciences
| | - Takashi NAGAI
- National Institute of Livestock and Grassland Science
| | - Kazuhiro KIKUCHI
- Division of Animal Sciences, National Institute of Agrobiological Sciences
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36
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Somfai T, Ozawa M, Noguchi J, Kaneko H, Kuriani Karja NW, Farhudin M, Dinnyés A, Nagai T, Kikuchi K. Developmental competence of in vitro-fertilized porcine oocytes after in vitro maturation and solid surface vitrification: Effect of cryopreservation on oocyte antioxidative system and cell cycle stage. Cryobiology 2007; 55:115-26. [PMID: 17681290 DOI: 10.1016/j.cryobiol.2007.06.008] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2006] [Revised: 06/11/2007] [Accepted: 06/21/2007] [Indexed: 11/29/2022]
Abstract
The susceptibility of in vitro matured (IVM) porcine oocytes to be fertilized in vitro after vitrification was investigated. IVM oocytes were cryopreserved by solid surface vitrification (SSV) or treated with cryoprotectants (toxicity control, TC). Control oocytes were not treated or vitrified. Live oocytes in the three groups were in vitro fertilized (IVF) and then cultured (IVC) for 6 days. In vitro maturation and IVC were performed under 5% or 20% O(2) tension. The percentage of live oocytes in the SSV group was lower than those in the control and TC groups. Fertilization rates after SSV were significantly lower than in the control group. Significantly fewer penetrated oocytes formed male pronuclei in the SSV group than in the control and TC groups. Cleavage rates were significantly lower in the SSV group than in the control and TC groups. Blastocyst formation rates in the control and TC groups were similar, whereas only a single embryo developed to the blastocyst stage from 113 oocytes after vitrification. Blastocyst formation rates in the control group and in the TC group were significantly higher under 5% O(2) IVC than under 20% O(2) IVC. Oxygen tension during IVM had no effect on embryo development. The glutathione (GSH) content of vitrified oocytes was significantly lower than in the controls. In contrast, the H(2)O(2) level was higher in vitrified oocytes than in control oocytes. Vitrification caused parthenogenetic activation in 44.9% of unfertilized oocytes. This significant increase in parthenogenetic activation along with significantly dropped GSH level in vitrified oocytes may explain the decreased ability of the SSV group to form male pronuclei. These factors might have contributed to the poor developmental competence of vitrified oocytes.
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Affiliation(s)
- Tamás Somfai
- Genetic Diversity Department, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba, Ibaraki, Japan
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Ding FH, Xiao ZZ, Li J. Preliminary studies on the vitrification of red sea bream (Pagrus major) embryos. Theriogenology 2007; 68:702-8. [PMID: 17606292 DOI: 10.1016/j.theriogenology.2007.05.064] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2006] [Accepted: 05/16/2007] [Indexed: 11/19/2022]
Abstract
The objective was to identify an appropriate cryoprotectant and protocol for vitrification of red sea bream (Pagrus major) embryos. The toxicity of five single-agent cryoprotectants, dimethyl sulfoxide (DMSO), propylene glycol (PG), ethylene glycol (EG), glycerol (GLY), and methyl alcohol (MeOH), as well as nine cryoprotectant mixtures, were investigated by comparing post-thaw hatching rates. Two vitrifying protocols, a straw method and a solid surface vitrification method (copper floating over liquid nitrogen), were evaluated on the basis of post-thaw embryo morphology. Exposure to single-agent cryoprotectants (10% concentration for 15 min) was not toxic to embryos, whereas for higher concentrations (20 and 30%) and a longer duration of exposure (30 min), DMSO and PG were better tolerated than the other cryoprotectants. Among nine cryoprotectant mixtures, the combination of 20% DMSO+10% PG+10% MeOH had the lowest toxicity after exposure for 10 min or 15 min. High percentages of morphologically intact embryos, 50.6+/-16.7% (mean+/-S.D.) and 77.8+/-15.5%, were achieved by the straw vitrifying method (20.5% DMSO+15.5% acetamide+10% PG, thawing at 43 degrees C and washing in 0.5M sucrose solution for 5 min) and by the solid surface vitrification method (40% GLY, thawing at 22 degrees C and washing in 0.5M sucrose solution for 5 min). After thawing, morphological changes in the degenerated embryos included shrunken yolks and ruptured chorions. Furthermore, thawed embryos that were morphologically intact did not consistently survive incubation.
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Affiliation(s)
- F H Ding
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
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Somfai T, Ozawa M, Noguchi J, Kaneko H, Karja NWK, Fahrudin M, Nakai M, Maedomari N, Dinnyés A, Nagai T, Kikuchi K. In vitro development of polyspermic porcine oocytes: Relationship between early fragmentation and excessive number of penetrating spermatozoa. Anim Reprod Sci 2007; 107:131-47. [PMID: 17681437 DOI: 10.1016/j.anireprosci.2007.06.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Revised: 06/13/2007] [Accepted: 06/19/2007] [Indexed: 11/16/2022]
Abstract
Embryo development during in vitro culture of polyspermic porcine oocytes was investigated in the present study. After in vitro fertilization (IVF) of in vitro matured oocytes, putative zygotes were centrifuged to visualize pronuclei. Two pronuclear (2PN) and poly-pronuclear (PPN) zygotes were selected and cultured in vitro. Their development to the blastocyst stage and total cell numbers, dead cell rates and ploidy at the blastocyst stage and morphology of resultant embryos after first cleavage were compared. A cleavage rate of PPN embryos was lower than that of 2PN (61.3% and 82.2%, respectively), however, the ability of cleaved embryos to develop to the blastocyst stage did not differ between the PPN and the 2PN groups (22.4% and 32.9%, respectively). Also there was no difference in total cell numbers and rates of dead cells between PPN and 2PN blastocysts. The majority of blastocysts in 2PN group were found to be diploid. In contrast, blastocysts in PPN group showed heterogeneous status in their ploidy including polyploidy and mixoploidy, whereas a remarkable proportion (31.3%) of them was found to be diploid. After the first cleavage (at 36 h after IVF), there was no difference in the number of nuclei/embryo between the two groups, nevertheless embryos in PPN group had significantly higher numbers of blastomeres than that of embryos in 2PN group, mainly due to an increased frequency of anuclear blastomeres. The present results indicate that correction of embryo ploidy in polyspermic embryos can occur during IVC. Nevertheless the frequency of partial fragmentation in polyspermic embryos is increased.
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Affiliation(s)
- Tamás Somfai
- Genetic Diversity Department, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba, Ibaraki 305-8602, Japan
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Boonkusol D, Faisaikarm T, Dinnyes A, Kitiyanant Y. Effects of vitrification procedures on subsequent development and ultrastructure of in vitro-matured swamp buffalo (Bubalus bubalis) oocytes. Reprod Fertil Dev 2007; 19:383-91. [PMID: 17257525 DOI: 10.1071/rd06097] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2006] [Accepted: 11/08/2006] [Indexed: 11/23/2022] Open
Abstract
The purpose of the present study was to investigate the effects of two vitrification procedures on developmental capacity and ultrastructural changes of matured swamp buffalo oocytes. In vitro-matured oocytes were vitrified by using 35 and 40% ethylene glycol as vitrification solution for solid surface vitrification (SSV) and in-straw vitrification (ISV), respectively. Survival rate of vitrified-warmed oocytes, evaluated on the basis of ooplasm homogeneity, oolemma integrity and zona pellucida intactness, as well as parthenogenetic blastocyst rates of vitrified-warmed oocytes were significantly higher with SSV (89.3 and 13.6%, respectively) than ISV (81.8 and 5.5%, respectively). However, they were still significantly lower than that of control oocytes (100 and 34.2%, respectively). For examining the ultrastructural changes, fresh, VS-exposed (ISV and SSV), and vitrified-warmed (ISV and SSV) oocytes were processed for transmission electron microscopy. In VS-exposed oocytes, reduction of microvilli abundance and damage of mitochondrial membrane were found only in the ISV group. In vitrified-warmed oocytes, however, it was clear that both methods of vitrification induced profound ultrastructural modifications to microvilli, mitochondria, oolemma and cortical granules as well as to the size and position of vesicles. Damaged mitochondria were, however, more abundant in ISV vitrified oocytes than in SSV vitrified oocytes, which correlated with the developmental data, showing the superiority of the SSV method. The present study demonstrated the feasibility of vitrification of in vitro-matured swamp buffalo oocytes.
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Affiliation(s)
- Duangjai Boonkusol
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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Gupta MK, Uhm SJ, Lee HT. Cryopreservation of immature and in vitro matured porcine oocytes by solid surface vitrification. Theriogenology 2007; 67:238-48. [PMID: 16963114 DOI: 10.1016/j.theriogenology.2006.07.015] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2006] [Accepted: 07/04/2006] [Indexed: 11/25/2022]
Abstract
Cryopreservation of normal, lipid-containing porcine oocytes has had limited practical success. This study used solid surface vitrification (SSV) of immature germinal vesicle (GV) and mature meiosis II (MII) porcine oocytes and evaluated the effects of pretreatment with cytochalasin B, cryoprotectant type (dimethylsulfoxide (DMSO), ethylene glycol (EG), or both), and warming method (two-step versus single-step). Oocyte survival (post-thaw) was assessed by morphological appearance, staining (3',6'-diacetyl fluorescein), nuclear maturation, and developmental capacity (after in vitro fertilization). Both GV and MII oocytes were successfully vitrified; following cryopreservation in EG, more than 60% of GV and MII stage porcine oocytes remained intact (no significant improvement with cytochalasin B pretreatment). Oocytes (GV stage) vitrified in DMSO had lower (P<0.05) nuclear maturation rates (31%) than those vitrified in EG (51%) or EG+DMSO (53%). Survival was better with two-step versus single-step dilution. Despite high survival rates, rates of cleavage (20-26%) and blastocyst formation (3-9%) were significantly lower than for non-vitrified controls (60 and 20%). In conclusion, SSV was a very simple, rapid, procedure that allowed normal, lipid-containing, GV or MII porcine oocytes to be fertilized and develop to the blastocyst stage in vitro.
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Affiliation(s)
- Mukesh Kumar Gupta
- Department of Animal Biotechnology, Bio-Organ Research Center, Konkuk University, 1 Hwayang-dong, Gwangjin-Gu, Seoul 143 701, South Korea
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Dinnyes A, Liu J, Nedambale TL. Novel gamete storage. Reprod Fertil Dev 2007; 19:719-31. [PMID: 17714626 DOI: 10.1071/rd07035] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Accepted: 06/08/2007] [Indexed: 11/23/2022] Open
Abstract
The aim of this review is to outline recent advances in gamete storage that are beneficial for rescuing endangered species or for the breeding of companion animals. Much more information is available on the technical resolutions and practical applications of sperm cryopreservation in various species than of female gametes, reproductive tissues or organs. Mammalian sperm cryopreservation often works relatively efficiently; however, the ability of female gametes to be cryopreserved and still be viable for fertilisation is also essential for rescuing endangered species. For a proper evaluation of gamete cryopreservation possibilities in a given species, it is essential to understand the basic mechanism affecting the survival of cryopreserved cells, the technical and physical limitations, the available techniques and the new avenues to resolve the specific problems in that species. This paper is aimed to provide some help for this process. The limited length of this paper resulted in the omission of information on many important areas, including most data on teleosts, amphibian and insect cryopreservation.
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Affiliation(s)
- A Dinnyes
- Biotalentum Ltd, Aulich L. 26, Godollo 2100, Hungary.
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Ledda S, Bogliolo L, Succu S, Ariu F, Bebbere D, Leoni GG, Naitana S. Oocyte cryopreservation: oocyte assessment and strategies for improving survival. Reprod Fertil Dev 2007; 19:13-23. [PMID: 17389131 DOI: 10.1071/rd06126] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Despite significant progress in cryopreservation of mammalian oocytes and embryos, many of the molecular and biochemical events that underlie this technology are poorly understood. In recent years, researchers have focused on obtaining viable oocytes that are developmentally competent. Even under the most favourable conditions, experimental approaches have achieved only limited success compared with fresh oocytes used in routine in vitro embryo production. Chilling injuries and toxic effects of the cryoprotectants are the major adverse consequences following cryoprocedures. To overcome these problems, different strategies have been developed for improving cryopreservation results. These strategies include reducing container volumes, increasing the thermal gradient, changing the cell surface/volume ratio, enhancing cryotolerance by supplementation with various additives or modifying the lipid composition of the oocyte membrane. In order to develop new strategies for reducing the various forms of stress associated with oocyte cryopreservation, it is fundamental to gain a better understanding of the major changes responsible for poor post-thaw survival. With this knowledge, we hope that oocyte cryostorage will become a fully reliable reproductive technique in the near future.
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Affiliation(s)
- Sergio Ledda
- Department of Animal Biology, Veterinary Faculty, University of Sassari, 07100 Sassari, Italy.
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