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Caliskan S, Liu D, Oldenhof H, Sieme H, Wolkers WF. Use of membrane transport models to design cryopreservation procedures for oocytes. Anim Reprod Sci 2024; 267:107536. [PMID: 38908169 DOI: 10.1016/j.anireprosci.2024.107536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/24/2024]
Abstract
Oocyte cryopreservation is increasingly being used in reproductive technologies for conservation and breeding purposes. Further development of oocyte cryopreservation techniques requires interdisciplinary insights in the underlying principles of cryopreservation. This review aims to serve this purpose by: (1) highlighting that preservation strategies can be rationally designed, (2) presenting mechanistic insights in volume and osmotic stress responses associated with CPA loading strategies and cooling, and (3) giving a comprehensive listing of oocyte specific biophysical membrane characteristics and commonly used permeation model equations. It is shown how transport models can be used to simulate the behavior of oocytes during cryopreservation processing steps, i.e., during loading of cryoprotective agents (CPAs), cooling with freezing as well as vitrification, warming and CPA unloading. More specifically, using defined cellular and membrane characteristics, the responses of oocytes during CPA (un)loading were simulated in terms of temperature- and CPA type-and-concentration-dependent changes in cell volume and intracellular solute concentration. In addition, in order to determine the optimal cooling rate for slow programmable cooling cryopreservation, the freezing-induced cell volume response was simulated at various cooling rates to estimate rates with tolerable limits. For vitrification, special emphasis was on prediction of the timing of reaching osmotic tolerance limits during CPA exposure, and the need to use step-wise CPA addition/removal protocols. In conclusion, we present simulations and schematic illustrations that explain the timing of events during slow cooling cryopreservation as well as vitrification, important for rationally designing protocols taking into account how different CPA types, concentrations and temperatures affect the oocyte.
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Affiliation(s)
- Sükrü Caliskan
- Biostabilization Laboratory - Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany; Unit for Reproductive Medicine - Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Dejia Liu
- Biostabilization Laboratory - Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany; Unit for Reproductive Medicine - Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Harriëtte Oldenhof
- Biostabilization Laboratory - Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany; Unit for Reproductive Medicine - Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Harald Sieme
- Unit for Reproductive Medicine - Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Willem F Wolkers
- Biostabilization Laboratory - Lower Saxony Centre for Biomedical Engineering, Implant Research and Development, Hannover, Germany; Unit for Reproductive Medicine - Clinic for Horses, University of Veterinary Medicine Hannover, Hannover, Germany.
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Keckstein P, Dittrich R, Bleisinger N, Hoffmann I, Beckmann MW, Gebhardt A, Schmid B, Keckstein S. Survival and hormone production of isolated mouse follicles in three-dimensional artificial scaffolds after stimulation with bpV(HOpic). Arch Gynecol Obstet 2024; 309:2127-2136. [PMID: 38472502 PMCID: PMC11018681 DOI: 10.1007/s00404-024-07419-z] [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: 11/29/2023] [Accepted: 02/05/2024] [Indexed: 03/14/2024]
Abstract
PURPOSE To preserve fertility before gonadotoxic therapy, ovarian tissue can be removed, cryopreserved, and transplanted back again after treatment. An alternative is the artificial ovary, in which the ovarian follicles are extracted from the tissue, which reduces the risk of reimplantation of potentially remaining malignant cells. The PTEN inhibitor bpV(HOpic) has been shown to activate human, bovine and alpacas ovarian follicles, and it is therefore considered a promising substance for developing the artificial ovary. The purpose of this study was to examine the impact of different scaffolds and the vanadate derivative bpV(HOpic) on mice follicle survival and hormone secretion over 10 days. METHODS A comparative analysis was performed, studying the survival rates (SR) of isolated mice follicle in four different groups that differed either in the scaffold (polycaprolactone scaffold versus polyethylene terephthalate membrane) or in the medium-bpV(HOpic) versus control medium. The observation period of the follicles was 10 days. On days 2, 6, and 10, the viability and morphology of the follicles were checked using fluorescence or confocal microscopy. Furthermore, hormone levels of estrogen (pmol/L) and progesterone (nmol/L) were determined. RESULTS When comparing the SR of follicles among the four groups, it was observed that on day 6, the study groups utilizing the polycaprolactone scaffold with bpV(HOpic) in the medium (SR: 0.48 ± 0.18; p = 0.004) or functionalized in the scaffold (SR: 0.50 ± 0.20; p = 0.003) exhibited significantly higher survival rates compared to the group using only the polyethylene terephthalate membrane (SR: 0). On day 10, a significantly higher survival rate was only noted when comparing the polycaprolactone scaffold with bpV(HOpic) in the medium to the polyethylene terephthalate membrane group (SR: 0.38 ± 0.20 versus 0; p = 0.007). Higher levels of progesterone were only significantly associated with better survival rates in the group with the polycaprolactone scaffold functionalized with bpV(HOpic) (p = 0.017). CONCLUSION This study demonstrates that three-dimensional polycaprolactone scaffolds improve the survival rates of isolated mice follicles in comparison with a conventional polyethylene terephthalate membrane. The survival rates slightly improve with added bpV(HOpic). Furthermore, higher rates of progesterone were also partly associated with improved survival.
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Affiliation(s)
- Philip Keckstein
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany.
| | - Ralf Dittrich
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Nathalie Bleisinger
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Inge Hoffmann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander-University of Erlangen-Nürnberg, Comprehensive Cancer Center ER-EMN, Erlangen, Germany
| | - Albrecht Gebhardt
- Department of Statistics, University of Klagenfurt, Klagenfurt, Austria
| | - Benjamin Schmid
- Optical Imaging Center Erlangen (OICE), University of Erlangen-Nürnberg, Erlangen, Germany
| | - Simon Keckstein
- Department of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Munich, Germany
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Salman A, Fernández-Alegre E, Francisco-Vázquez R, Gómez-Martín R, Fernández-Fernández A, Areán-Dablanca H, Domínguez JC, González-Montaña JR, Caamaño JN, Martínez-Pastor F. Extension of the equilibration period up to 24 h maintains the post-thawing quality of Holstein bull semen frozen with OPTIXcell®. Anim Reprod Sci 2023; 250:107209. [PMID: 36889162 DOI: 10.1016/j.anireprosci.2023.107209] [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: 12/19/2022] [Revised: 02/27/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023]
Abstract
Semen cryopreservation in bovine livestock is well established, but logistics often require deviations from standard protocols. Extending the equilibration time to the following day is convenient in many situations. To improve our knowledge of the effects of this modification, we studied the post-thawing and post-incubation (4 h, 38 °C) sperm quality after freezing with 4 or 24-h extension in the OPTIXcell extender by using an ample panel of analyses: CASA for motility; flow cytometry for viability, physiology, oxidative stress, and chromatin parameters (DNA fragmentation, chromatin compaction, and thiol groups status); and spectrometry for malondialdehyde production. Semen was obtained from 12 Holstein bulls. The 24-h equilibration time showed few significant effects, with only a tiny decrease in progressive motility and a positive impact on chromatin structure. The incubation removed some of these effects, with the pattern for chromatin compaction remaining the same. No detrimental oxidative stress or increase in apoptotic or capacitation markers was detected. Additionally, the individual bull interacted with the effects of the incubation and the equilibration, especially regarding the chromatin status. Whereas this interaction did not critically affect sperm quality, it could be relevant in practice. Bull fertility as non-return rates (NRR56) was associated with some sperm parameters (especially with an improved chromatin structure) but not in the 4-h post-thawing analysis. Our study supports that extending the equilibration time by at least 24-h is feasible for bull semen freezing with the OPTIXcell extender.
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Affiliation(s)
| | | | | | | | | | | | - Juan Carlos Domínguez
- INDEGSAL, Universidad de León, León, Spain; Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, Spain
| | - J Ramiro González-Montaña
- INDEGSAL, Universidad de León, León, Spain; Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, Spain
| | - J Néstor Caamaño
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - Felipe Martínez-Pastor
- INDEGSAL, Universidad de León, León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, León, Spain.
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Chen X, Wu J, Yang F, Zhou M, Wang R, Huang J, Rong Y, Liu J, Wang S. New insight into the mechanism by which antifreeze peptides regulate the physiological function of Streptococcus thermophilus subjected to freezing stress. J Adv Res 2023; 45:127-140. [PMID: 35599106 PMCID: PMC10006524 DOI: 10.1016/j.jare.2022.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 04/14/2022] [Accepted: 05/03/2022] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Antifreeze peptides regulate the physiological functions of frozen cells and even their apoptosis; however, the mechanisms by which antifreeze peptides regulate these processes remain unclear, although the interactions between cell membranes and ice are well known to be important in this process. OBJECTIVES Our study aims to investigate how antifreeze peptides regulate cell physiological functions during the freezing process. METHODS We investigated the cryoprotective effect of rsfAFP on the physiological functions of S. thermophilus under freezing stress by measuring cellular metabolism activity, intracellular enzyme activity, cell membrane characterization, and cell apoptosis. The mechanism by which rsfAFP impacts S. thermophilus physiological functions under freezing stress was investigated using multispectral techniques and cryo-TEM. RESULTS We show that a recombinant antifreeze peptide (rsfAFP) interacts with the extracellular capsular polysaccharides and peptidoglycan of Streptococcus thermophilus and ice to cover the outer layer of the membrane, forming a dense protective layer that regulates the molecular structure of extracellular ice crystals, which results in reduced extracellular membrane damage, depressed apoptosis and increased intracellular metabolic activity. This interaction mechanism was indicated by the fact that S. thermophilus better maintained its permeability barrier, membrane fluidity, membrane structural integrity, and cytoplasmic membrane potential during freezing stress with rsfAFP treatment. CONCLUSION These results provide new insights into the mechanism by which rsfAFP regulates frozen cellphysiological functionsand apoptosis under freezing stress.
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Affiliation(s)
- Xu Chen
- School of Mechanical Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jinhong Wu
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fujia Yang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Mi Zhou
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ruibin Wang
- Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jianlian Huang
- Key Laboratory of Refrigeration and Conditioning Aquatic Products Processing of Ministry of Agriculture and Rural Affairs, Xiamen 361022, China
| | - Yuzhi Rong
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jianhua Liu
- International Faculty of Applied Technology, Yibin University, Yibin, Sichuan 644000, China
| | - Shaoyun Wang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
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Testicular Tissue Vitrification: a Promising Strategy for Male Fertility Preservation. Reprod Sci 2022; 30:1687-1700. [DOI: 10.1007/s43032-022-01113-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/16/2022] [Indexed: 11/24/2022]
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Tu F, Bhat M, Benson JD. Real-time computer assisted measurement of oocyte and embryo volume for assessment of transport parameters. Cryobiology 2022; 108:19-26. [PMID: 36084734 DOI: 10.1016/j.cryobiol.2022.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/28/2022]
Abstract
Cryopreservation of gametes has revolutionized both animal agriculture and human reproductive medicine. Although many new technologies have tremendously improved the cryopreservation of oocytes and embryos, osmotic stress encountered during the equilibration process can cause their loss of function. Rational cryoprotective agent (CPA) equilibration strategies can be used to minimize this stress but require trained personnel to monitor the process in individual oocytes or embryos or require the use of suboptimal average transport parameter values in mathematically guided protocols. To enable individually optimized equilibration of CPAs in individual cells, here we establish experimental and computational techniques to track the osmotic behavior of individual bovine oocytes and embryos during CPA equilibration in real time. We designed a microfluidic device to provide a controlled flow of CPA and modified standard image analysis techniques to estimate real-time cell volume changes. In particular, we used a level-set method to define a boundary within a contour plot which could automate the image analysis process. A colour based level set algorithm coupled with contour smoothing not only provided the best fit but also reduced the segmentation time to well under a second per image. The accuracy of the automated method was comparable to human segmented images for both oocytes and embryos. This technology should enable both rapid evaluation of key biophysical parameters in oocytes and embryos undergoing CPA equilibration and the development of real-time feedback-control of CPA equilibration, enabling individual oocyte- and embryo-specific optimal protocols.
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Affiliation(s)
- Frankie Tu
- Department of Computer Science, Memorial University of Newfoundland, St John's, Newfoundland and Labrador, Canada; Department of Biology, University of Saskatchewan, Saskatoon, Canada
| | - Maajid Bhat
- Ro, Clinical Strategy, NY, NY, USA; Department of Biology, University of Saskatchewan, Saskatoon, Canada
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, Canada.
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Choi HW, Jang H. Application of Nanoparticles and Melatonin for Cryopreservation of Gametes and Embryos. Curr Issues Mol Biol 2022; 44:4028-4044. [PMID: 36135188 PMCID: PMC9497981 DOI: 10.3390/cimb44090276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/02/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Cryopreservation of gametes and embryos, a technique widely applied in human infertility clinics and to preserve desirable genetic traits of livestock, has been developed over 30 years as a component of the artificial insemination process. A number of researchers have conducted studies to reduce cell toxicity during cryopreservation using adjuvants leading to higher gamete and embryo survival rates. Melatonin and Nanoparticles are novel cryoprotectants and recent studies have investigated their properties such as regulating oxidative stresses, lipid peroxidation, and DNA fragmentation in order to protect gametes and embryos during vitrification. This review presented the current status of cryoprotectants and highlights the novel biomaterials such as melatonin and nanoparticles that may improve the survivability of gametes and embryos during this process.
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Affiliation(s)
- Hyun-Woo Choi
- Department of Animal Science, Jeonbuk National University, Jeonju 54896, Korea
| | - Hoon Jang
- Department of Life Sciences, Jeonbuk National University, Jeonju 54896, Korea
- Correspondence: ; Tel.: +82-63-270-3359
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8
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O'Brien E, Malo C, Castaño C, García-Casado P, Toledano-Díaz A, Martínez-Madrid B, Rodriguez-Martinez H, Álvarez-Rodríguez M, Santiago-Moreno J. Sperm freezability is neither associated with the expression of aquaporin 3 nor sperm head dimensions in dromedary camel (Camelus dromedarius). Theriogenology 2022; 189:230-236. [DOI: 10.1016/j.theriogenology.2022.06.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 06/03/2022] [Accepted: 06/25/2022] [Indexed: 11/25/2022]
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Arciero V, Ammar O, Maggi M, Vignozzi L, Muratori M, Dabizzi S. Vapour fast freezing with low semen volumes can highly improve motility and viability or DNA quality of cryopreserved human spermatozoa. Andrology 2022; 10:1123-1133. [PMID: 35712876 PMCID: PMC9544568 DOI: 10.1111/andr.13208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 04/02/2022] [Accepted: 06/04/2022] [Indexed: 11/29/2022]
Abstract
Objectives To challenge a vapour fast freezing (VFF) cryopreservation procedure (conventional VFF) with several vitrification protocols and VFF conducted with small semen volumes (10 μl, microVFF), in order to implement a procedure for sperm banking in subjects with small sperm number. Materials and methods Conventional VFF was conducted with test yolk buffer (TYB) as freezing medium and 500 μl straws as carriers. MicroVFF was conducted with TYB and using tips or cell sleepers as carriers. Vitrification was performed with TYB or SpermFreeze as freezing medium and with microspheres and tips as carriers. The effect of different procedures on progressive and total motility, viability, oxidative stress and DNA fragmentation of spermatozoa (sDF) was determined. Fresh and thawed samples, the latter after adequate washing/centrifuging, were evaluated. In some experiments, motility and viability recovery was determined in thawed samples, omitting the washing/centrifuging step. Results All the cryopreservation procedures blunted sperm motility and viability and induced increase of oxidative stress and sDF. However, VFF better preserved sperm motility and viability and less induced oxidative stress and sDF than vitrification, independently from the freezing medium and the carriers used in the latter. MicroVFF with cell sleepers resulted in a percentage increase of 57.58 ± 63.63%, 48.82 ± 74.96% and 24.55 ± 39.20% of, respectively, progressive and total motility and viability compared to the conventional VFF. Further, when tips were used, microVFF resulted in a percentage decrease of 15.77 ± 20.77% of sDF with respect to conventional VFF. Finally, omission of washing/centrifuging in post thawed samples, resulted in a much lower negative effect on motility and viability. Discussion and conclusion VFF, and in particular microVFF, better prevents sperm cryodamage than vitrification. Washing/centrifuging step after sample thawing seems to be responsible for a relevant fraction of damage to sperm motility and viability. Overall, our results are promising for developing a novel strategy of sperm banking in subjects with small sperm number, where low semen volumes are mandatory.
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Affiliation(s)
- Valentina Arciero
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Oumaima Ammar
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Mario Maggi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Linda Vignozzi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy.,Department of Andrology, Women's Endocrinology and Gender Incongruence Unit, Careggi Hospital, Italy
| | - Monica Muratori
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Sara Dabizzi
- Department of Andrology, Women's Endocrinology and Gender Incongruence Unit, Careggi Hospital, Italy
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10
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S. Aljaser F. Cryopreservation Methods and Frontiers in the Art of Freezing Life in Animal Models. Vet Med Sci 2022. [DOI: 10.5772/intechopen.101750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The development in cryobiology in animal breeding had revolutionized the field of reproductive medicine. The main objective to preserve animal germplasm stems from variety of reasons such as conservation of endangered animal species, animal diversity, and an increased demand of animal models and/or genetically modified animals for research involving animal and human diseases. Cryopreservation has emerged as promising technique for fertility preservation and assisted reproduction techniques (ART) for production of animal breeds and genetically engineered animal species for research. Slow rate freezing and rapid freezing/vitrification are the two main methods of cryopreservation. Slow freezing is characterized by the phase transition (liquid turning into solid) when reducing the temperature below freezing point. Vitrification, on the other hand, is a phenomenon in which liquid solidifies without the formation of ice crystals, thus the process is referred to as a glass transition or ice-free cryopreservation. The vitrification protocol applies high concentrations of cryoprotective agents (CPA) used to avoid cryoinjury. This chapter provides a brief overview of fundamentals of cryopreservation and established methods adopted in cryopreservation. Strategies involved in cryopreserving germ cells (sperm and egg freezing) are included in this chapter. Last section describes the frontiers and advancement of cryopreservation in some of the important animal models like rodents (mouse and rats) and in few large animals (sheep, cow etc).
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11
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Huanhuan Hu, Ji G, Shi X, Zhang J, Li M. Current Status of Male Fertility Preservation in Humans. Russ J Dev Biol 2022. [DOI: 10.1134/s1062360422020060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Moura TCM, Arruda LCP, Araújo Silva RAJ, Silva RPF, Oliveira AS, Tobal LFM, Batista AM, Carneiro GF, Guerra MMP. Diluent Containing Dimethylformamide Added With Sucrose Improves In Vitro Quality After Freezing/Thawing Stallion Sperm. J Equine Vet Sci 2021; 109:103825. [PMID: 34843891 DOI: 10.1016/j.jevs.2021.103825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 11/19/2022]
Abstract
The aim of this study was to investigate the effects of sucrose on post-thawed equine semen quality. Semen samples (n = 24) were collected from six stallions. They were diluted (200 × 106 sperm/mL) in a freezing medium based on skimmed milk, egg yolk, dimethylformamide, and supplemented with sucrose at concentrations of 0 (Control), 25, 50, and 100 mM and in a commercial extender (BotuCrio). Subsequently, they were filled in straws (0.5 mL) and subjected to freezing and storage (-196°C). Immediately after thawing (37°C, 30 seconds), semen samples were evaluated for kinetics (CASA), plasma and acrosomal membrane integrity, and mitochondrial membrane potential (flow cytometry). The addition of 50 and 100mM sucrose to the freezing extender increased (P < .05) the parameters of TM, PM, VCL, VSL, and VAP, compared to the control group. The WOB parameter of the group supplemented with 100 mM sucrose was higher (P < .05) than the control group. Higher values (P < .05) of ALH and BCF were observed in groups treated with sucrose (25, 50, and 100 mM), compared to BotuCrio. The semen frozen in the presence of 100 mM sucrose presented higher percentages (P < .05) of sperm with intact plasma and acrosomal membranes, and high mitochondrial membrane potential in relation to the other groups. It is concluded that the addition of sucrose to equine semen freezing extender increase motility (50 and 100 mM), plasma and acrosomal membrane integrity preserve, and high sperm mitochondrial membrane potential (100 mM) after thawing.
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Affiliation(s)
- Thalles C M Moura
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Lúcia C P Arruda
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil.
| | - Robespierre A J Araújo Silva
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Raquel P F Silva
- Enzymology Laboratory (LABENZ), Department of Biochemistry, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Aline S Oliveira
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Lucas F M Tobal
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - André M Batista
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Gustavo F Carneiro
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Maria M P Guerra
- Andrology Laboratory (ANDROLAB), Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
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Quercetin effect on the efficiency of ovine oocyte vitrification at GV stage. Theriogenology 2021; 174:53-59. [PMID: 34418772 DOI: 10.1016/j.theriogenology.2021.07.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023]
Abstract
The widely adopted method of vitrification is known to induce some negative effects on oocytes. In order to enhance the efficiency of this process performed on ovine oocytes at germinal vesicle stage, vitrification and warming (VW) solutions, and maturation media were supplemented with 5 μM Quercetin (Q). Four groups of vitrified and fresh immature oocytes were subjected to IVM, IVF and IVC, and their survival rate, apoptosis, nuclear status and developmental competence were assessed. Non-vitrified oocytes treated with Quercetin experienced higher cleavage rate relative to those matured without Quercetin (p < 0.05). Supplementation of VW and maturation media with Quercetin resulted in increased survival, cleavage and total blastocyst rates relative to the untreated oocytes. The post-IVM survival rate of non-vitrified oocytes showed no difference among those matured with and without Quercetin, but was higher for oocytes vitrified, warmed and matured with Quercetin relative to VW group lacking Quercetin. The proportion of early-apoptotic (AV+) oocytes was affected by Quercetin supplementation in both control and VW groups (p < 0.05). The number of AV positive oocytes was lower and the proportion of oocytes reaching MII stage was greater in non-vitrified and VW groups matured with Quercetin, in comparison with their untreated respective controls (p < 0.05). There was no difference in the number of late-stage apoptotic oocytes among different groups. It is concluded that supplementing vitrification and warming solutions with Quercetin endows vitrified ovine oocytes with protective potential against early apoptotic damage, and improves viability, maturation rate and developmental competence at GV stage.
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Tharasanit T, Thuwanut P. Oocyte Cryopreservation in Domestic Animals and Humans: Principles, Techniques and Updated Outcomes. Animals (Basel) 2021; 11:ani11102949. [PMID: 34679970 PMCID: PMC8533007 DOI: 10.3390/ani11102949] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/25/2022] Open
Abstract
Oocyte cryopreservation plays important roles in basic research and the application of models for genetic preservation and in clinical situations. This technology provides long-term storage of gametes for genetic banking and subsequent use with other assisted reproductive technologies. Until recently, oocytes have remained the most difficult cell type to freeze, as the oocytes per se are large with limited surface area to cytoplasm ratio. They are also highly sensitive to damage during cryopreservation, and therefore the success rate of oocyte cryopreservation is generally poor when compared to noncryopreserved oocytes. Although advancement in oocyte cryopreservation has progressed rapidly for decades, the improvement of cryosurvival and clinical outcomes is still required. This review focuses on the principles, techniques, outcomes and prospects of oocyte cryopreservation in domestic animals and humans.
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Affiliation(s)
- Theerawat Tharasanit
- Department of Obstetrics, Gynecology and Reproduction, Faculty of Veterinary Science, Bangkok 10330, Thailand
- Veterinary Clinical Stem Cells and Bioengineering Research Unit, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence:
| | - Paweena Thuwanut
- Department of Obstetrics and Gynecology, Division of Reproductive Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
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Cryopreservation of Iranian Markhoz goat fibroblast cells as an endangered national genetic resource. Mol Biol Rep 2021; 48:6241-6248. [PMID: 34398426 PMCID: PMC8365128 DOI: 10.1007/s11033-021-06534-3] [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: 01/20/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022]
Abstract
Background The continuous accessibility of local animals for sustainable use is being eroded annually. Thus, a strategic vision for the conservation of biodiversity is of far-reaching emphasis to deal with unprecedented challenges in the local population extension facing in the future. This study aimed to establish and cryopreserve endangered Markhoz goat (Capra hircus) fibroblast cell lines in vitro. Methods and results These primary fibroblast cells were isolated from 58 Iranian Markhoz goats and individually cultured by explant technique in DMEM medium supplemented with 10% FBS and 2 mM L-Glutamine, in the presence of Penicillin (200 U/ml)—Streptomycin (200 mg/ml) during the first passage number. The extracted cell lines were confirmed morphologically as fibroblast cells. The population doubling time for DMEM-cultured cells was 23 ± 0.5 h. Chromosomal analysis indicated a total chromosome number of 2n = 60 with > 95% frequency. The cultured cells were checked for bacteria, fungi, yeast, and mycoplasma contaminations and the results were reported negative. The efficiencies of the fluorescent protein encoded by VSV-G (pMDG) and lentiviral pCSGW vectors reported in a range of 65% value. According to the species identification analysis, the goat cell lines were banked and confirmed without any miss- and cross-contamination. Conclusions The significant issue in this paper can be concluded about the first report of the establishment of endangered Markhoz goat cell banking inside the country. This study demonstrated the successful establishment of a genetically stable fibroblast bank as a valuable genetic resource for the endangered Iranian Markhoz goat breed.
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Effect of cryoprotectant concentration on bovine oocyte permeability and comparison of two membrane permeability modelling approaches. Sci Rep 2021; 11:15387. [PMID: 34321576 PMCID: PMC8319298 DOI: 10.1038/s41598-021-94884-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 07/12/2021] [Indexed: 11/24/2022] Open
Abstract
The plasma membrane permeability to water and cryoprotectant (CPA) significantly impacts vitrification efficiency of bovine oocytes. Our study was designed to determine the concentration-dependent permeability characteristics for immature (GV) and mature (MII) bovine oocytes in the presence of ethylene glycol (EG) and dimethyl sulphoxide (Me2SO), and to compare two different modeling approaches: the two parameter (2P) model and a nondilute transport model. Membrane permeability parameters were determined by consecutively exposing oocytes to increasing concentrations of Me2SO or EG. Higher water permeability was observed for MII oocytes than GV oocytes in the presence of both Me2SO and EG, and in all cases the water permeability was observed to decrease as CPA concentration increased. At high CPA concentrations, the CPA permeability was similar for Me2SO and EG, for both MII and GV oocytes, but at low concentrations the EG permeability of GV oocytes was substantially higher. Predictions of cell volume changes during CPA addition and removal indicate that accounting for the concentration dependence of permeability only has a modest effect, but there were substantial differences between the 2P model and the nondilute model during CPA removal, which may have implications for design of improved methods for bovine oocyte vitrification.
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Strategies for cryopreservation of testicular cells and tissues in cancer and genetic diseases. Cell Tissue Res 2021; 385:1-19. [PMID: 33791878 DOI: 10.1007/s00441-021-03437-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/18/2021] [Indexed: 12/15/2022]
Abstract
Cryopreservation of testicular cells and tissues is useful for the preservation and restoration of fertility in pre-pubertal males expecting gonadotoxic treatment for cancer and genetic diseases causing impaired spermatogenesis. A number of freezing and vitrification protocols have thus been tried and variable results have been reported in terms of cell viability spermatogenesis progression and the production of fertile spermatozoa. A few studies have also reported the production of live offspring from cryopreserved testicular stem cells and tissues in rodents but their replication in large animals and human have been lacking. Advancement in in vitro spermatogenesis system has improved the possibility of producing fertile spermatozoa from the cryopreserved testis and has reduced the dependency on transplantation. This review provides an update on various cryopreservation strategies for fertility preservation in males expecting gonadotoxic treatment. It also discusses various methods of assessing and ameliorating cryoinjuries. Newer developments on in vitro spermatogenesis and testicular tissue engineering for in vitro sperm production from cryopreserved SSCs and testicular tissue are also discussed.
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Comparison of two culture methods during in vitro spermatogenesis of vitrified-warmed testis tissue: Organ culture vs. hanging drop culture. Cryobiology 2021; 100:142-150. [PMID: 33639111 DOI: 10.1016/j.cryobiol.2021.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 12/11/2022]
Abstract
Solid surface vitrification (SSV) is a cost effective and simple method for testis tissue preservation. Vitrified-warmed testis tissue was successfully cultured using various organ culture methods. In this study, we compared two culture methods viz. hanging drop (HD) and organ culture (OC) methods for in vitro spermatogenesis of goat testis tissue vitrified-warmed by SSV. It was observed that OC method was superior (p < 0.05) to HD method in terms of post-warming metabolic activity of testicular tissue, as measured by MTT assay on Day 7 and Day 14 of culture, respectively. The size of the tissue also played an important role in post-warming metabolic activity and viability (4 mm3: 72.7 ± 1.2% vs. 9 mm3: 62.7 ± 1.3% vs. 16 mm3: 40.5 ± 1.7%) of vitrified tissues with smaller tissue resulting in better result. The vitrification-induced ROS activity significantly decreased during their in vitro culture. Histology and scanning electron microscopy (SEM) showed the rupture of basal membrane, surface morphology and, cell loss due to vitrification. However, histology and immunohistochemistry showed the progression of in vitro spermatogenesis and formation of elongated spermatozoa in both fresh and vitrified-warmed testis tissue cultured by OC method. Taken together, our results suggest that OC method is superior to HD method for culturing goat testis tissue vitrified-warmed by SSV.
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de Mori B, Spiriti MM, Pollastri I, Normando S, Biasetti P, Florio D, Andreucci F, Colleoni S, Galli C, Göritz F, Hermes R, Holtze S, Lazzari G, Seet S, Zwilling J, Stejskal J, Mutisya S, Ndeereh D, Ngulu S, Vigne R, Hildebrandt TB. An Ethical Assessment Tool (ETHAS) to Evaluate the Application of Assisted Reproductive Technologies in Mammals' Conservation: The Case of the Northern White Rhinoceros ( Ceratotherium simum cottoni). Animals (Basel) 2021; 11:312. [PMID: 33530613 PMCID: PMC7911958 DOI: 10.3390/ani11020312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 11/26/2022] Open
Abstract
Assisted reproductive technologies (ARTs) can make a difference in biodiversity conservation. Their application, however, can create risks and raise ethical issues that need addressing. Unfortunately, there is a lack of attention to the topic in the scientific literature and, to our knowledge, there is no tool for the ethical assessment of ARTs in the context of conservation that has been described. This paper reports the first applications of the Ethical Assessment Tool (ETHAS) to trans-rectal ovum pick-up (OPU) and in vitro fertilization (IVF) procedures used in a northern white rhinoceros (Ceratotherium simum cottoni) conservation project. The ETHAS consists of two checklists, the Ethical Evaluation Sheet and the Ethical Risk Assessment, and is specifically customized for each ART procedure. It provides an integrated, multilevel and standardized self-assessment of the procedure under scrutiny, generating an ethical acceptability ranking (totally, partially, not acceptable) and a risk rank (low, medium, high), and, hence, allows for implementing measures to address or manage issues beforehand. The application of the ETHAS to the procedures performed on the northern white rhinoceros was effective in ensuring a high standard of procedures, contributing to the acceptability and improved communication among the project's partners. In turn, the tool itself was also refined through an iterative consultation process between experts and stakeholders.
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Affiliation(s)
- Barbara de Mori
- Department of Comparative Biomedicine and Food Science, University of Padua, 35020 Padua, Italy; (M.M.S.); (I.P.)
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
| | - Maria Michela Spiriti
- Department of Comparative Biomedicine and Food Science, University of Padua, 35020 Padua, Italy; (M.M.S.); (I.P.)
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
| | - Ilaria Pollastri
- Department of Comparative Biomedicine and Food Science, University of Padua, 35020 Padua, Italy; (M.M.S.); (I.P.)
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
| | - Simona Normando
- Department of Comparative Biomedicine and Food Science, University of Padua, 35020 Padua, Italy; (M.M.S.); (I.P.)
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
| | - Pierfrancesco Biasetti
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (F.G.); (R.H.); (S.H.)
| | - Daniela Florio
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
- Department of Veterinary Medical Science, University of Bologna, 40064 Bologna, Italy
| | - Francesco Andreucci
- Ethics Laboratory for Veterinary Medicine, Conservation and Animal Welfare, University of Padua, 35020 Padua, Italy; (P.B.); (D.F.); (F.A.)
| | - Silvia Colleoni
- Avantea, Laboratory of Reproductive Technologies, 26100 Cremona, Italy; (S.C.); (C.G.); (G.L.)
| | - Cesare Galli
- Avantea, Laboratory of Reproductive Technologies, 26100 Cremona, Italy; (S.C.); (C.G.); (G.L.)
- Avantea Foundation, 26100 Cremona, Italy
| | - Frank Göritz
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (F.G.); (R.H.); (S.H.)
| | - Robert Hermes
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (F.G.); (R.H.); (S.H.)
| | - Susanne Holtze
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (F.G.); (R.H.); (S.H.)
| | - Giovanna Lazzari
- Avantea, Laboratory of Reproductive Technologies, 26100 Cremona, Italy; (S.C.); (C.G.); (G.L.)
- Avantea Foundation, 26100 Cremona, Italy
| | - Steven Seet
- Science Communication, Science Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (S.S.); (J.Z.)
| | - Jan Zwilling
- Science Communication, Science Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (S.S.); (J.Z.)
| | - Jan Stejskal
- ZOO Dvůr Králové, 54401 Dvůr Králové nad Labem, Czech Republic;
| | - Samuel Mutisya
- Ol Pejeta Wildlife Conservancy, Nanyuki 10400, Kenya; (S.M.); (S.N.); (R.V.)
| | | | - Stephen Ngulu
- Ol Pejeta Wildlife Conservancy, Nanyuki 10400, Kenya; (S.M.); (S.N.); (R.V.)
| | - Richard Vigne
- Ol Pejeta Wildlife Conservancy, Nanyuki 10400, Kenya; (S.M.); (S.N.); (R.V.)
| | - Thomas B. Hildebrandt
- Department of Reproduction Management, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany; (F.G.); (R.H.); (S.H.)
- Faculty of Veterinary Medicine, Free University of Berlin, D-14195 Berlin, Germany
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Hossay C, Donnez J, Dolmans MM. Whole Ovary Cryopreservation and Transplantation: A Systematic Review of Challenges and Research Developments in Animal Experiments and Humans. J Clin Med 2020; 9:jcm9103196. [PMID: 33023111 PMCID: PMC7601276 DOI: 10.3390/jcm9103196] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/13/2022] Open
Abstract
Ovarian tissue cryopreservation and transplantation is the only fertility preservation option that enables both restoration of fertility and resumption of ovarian endocrine function, avoiding the morbidity associated with premature menopause. It is also the only technique available to prepubertal patients and those whose treatment cannot be delayed for life-threatening reasons. Ovarian tissue cryopreservation can be carried out in two different ways, either as ovarian cortical fragments or as a whole organ with its vascular pedicle. Although use of cortical strips is the only procedure that has been approved by the American Society for Reproductive Medicine, it is fraught with drawbacks, the major one being serious follicle loss occurring after avascular transplantation due to prolonged warm ischemia. Whole ovary cryopreservation involves vascular transplantation, which could theoretically counteract the latter phenomenon and markedly improve follicle survival. In theory, this technique should maintain endocrine and reproductive functions much longer than grafting of ovarian cortical fragments. However, this procedure includes a number of critical steps related to (A) the level of surgical expertise required to accomplish retrieval of a whole ovary with its vascular pedicle, (B) the choice of cryopreservation technique for freezing of the intact organ, and (C) successful execution of functional vascular reanastomosis upon thawing. The aim of this systematic review is to shed light on these challenges and summarize solutions that have been proposed so far in animal experiments and humans in the field of whole ovary cryopreservation and transplantation.
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Affiliation(s)
- Camille Hossay
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium;
| | - Jacques Donnez
- Society for Research into Infertility, 1150 Brussels, Belgium;
| | - Marie-Madeleine Dolmans
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium;
- Gynecology Department, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
- Correspondence: ; Tel.: +32-(0)2-764-5237; Fax: +32-(0)2-764-9507
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21
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Zhao JQ, Xiao GL, Zhu WL, Fang D, Li N, Han CM, Gao QH. Ram semen preserved at 0°C with soybean lecithin Tris-based extender substituted for egg yolk. Anim Biosci 2020; 34:192-197. [PMID: 32777909 PMCID: PMC7876712 DOI: 10.5713/ajas.20.0118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 05/01/2020] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE The present study evaluated the preservation of ram semen at 0°C using soybean lecithin with a Tris-fructose extender. METHODS Semen was collected by artificial vagina ejaculation from six rams with proven fertility. High quality ejaculates were diluted by soybean lecithin (0.25%, 0.5%, 0.75%, 1.0%, 1.25%) using Tris-fructose extender and control (Tris-fructose egg yolk extender), respectively. The ejaculates were diluted to a concentration of 5×108 sperm/mL, followed by cooling to 0°C in 90 min and maintaining the temperature for 12 days. The diluted semen samples were examined and recorded for sperm progressive motility, acrosome integrity at 0, 24, 72, 144, 216, 288 h, respectively. Two hundred and twenty-three ewes were inseminated for 216 h with optimal soybean lecithin concentrated semen or control via trans-cervical insemination. RESULTS The results showed that there were no differences in sperm progressive motility at 0, 24, 72, and 144 h (p>0.05). After 216 h, the sperm progressive motility in the control group and 0.5% concentration groups was significantly higher when compared to 0.25% concentration (p<0.05). The 0.5% concentration group demonstrated the highest survival rate and had no difference with the control group (p>0.05). At 216 h, the sperm progressive motility of all groups was still above 50%. The acrosome integrity of all groups was decreased with prolongation of storage time, but there was no difference at each time point (p>0.05). There was no significant difference in the lambing rate and pregnancy rate between the 0.5% concentration group and the control group (p>0.05). CONCLUSION These results suggest that ram sperm is capable of fertilization after preservation at 0°C with 0.5% of soybean lecithin in Tris-based extender substituted for egg yolk and produce normal offspring after insemination.
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Affiliation(s)
- Jian-Qing Zhao
- College of Life Sciences, Tarim University, Alar, Xinjiang 843300, China.,Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
| | - Guo-Liang Xiao
- Kashgar Animal Husbandry Workstation, Kashi, Xinjiang 844000, China
| | - Wen-Liang Zhu
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
| | - Di Fang
- College of Life Sciences, Tarim University, Alar, Xinjiang 843300, China.,Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
| | - Na Li
- College of Life Sciences, Tarim University, Alar, Xinjiang 843300, China.,Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
| | - Chun-Mei Han
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
| | - Qing-Hua Gao
- College of Life Sciences, Tarim University, Alar, Xinjiang 843300, China.,Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
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Schulz M, Risopatrón J, Uribe P, Isachenko E, Isachenko V, Sánchez R. Human sperm vitrification: A scientific report. Andrology 2020; 8:1642-1650. [DOI: 10.1111/andr.12847] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 06/09/2020] [Accepted: 06/22/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Mabel Schulz
- Laboratory in Reproductive Medicine and Molecular Endocrinology Center of Translational Medicine‐Scientific and Technological Bioresource Nucleus (CEMT‐BIOREN) Faculty of Medicine Universidad de La Frontera Temuco Chile
- Department of Preclinical Science Faculty of Medicine Universidad de La Frontera Temuco Chile
| | - Jennie Risopatrón
- Department of Basic Science Faculty of Medicine Universidad de La Frontera Temuco Chile
| | - Pamela Uribe
- Laboratory in Reproductive Medicine and Molecular Endocrinology Center of Translational Medicine‐Scientific and Technological Bioresource Nucleus (CEMT‐BIOREN) Faculty of Medicine Universidad de La Frontera Temuco Chile
- Department of Internal Medicine Faculty of Medicine Universidad de La Frontera Temuco Chile
| | - Evgenia Isachenko
- Department of Obstetrics and Gynecology University of Cologne Cologne Germany
| | - Vladimir Isachenko
- Department of Obstetrics and Gynecology University of Cologne Cologne Germany
| | - Raúl Sánchez
- Laboratory in Reproductive Medicine and Molecular Endocrinology Center of Translational Medicine‐Scientific and Technological Bioresource Nucleus (CEMT‐BIOREN) Faculty of Medicine Universidad de La Frontera Temuco Chile
- Department of Preclinical Science Faculty of Medicine Universidad de La Frontera Temuco Chile
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Pagano N, Longobardi V, De Canditiis C, Zuchegna C, Romano A, Michal Andrzej K, Pero ME, Gasparrini B. Effect of caspase inhibitor Z-VAD-FMK on bovine sperm cryotolerance. Reprod Domest Anim 2020; 55:530-536. [PMID: 31985871 DOI: 10.1111/rda.13648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/21/2020] [Indexed: 11/30/2022]
Abstract
The aim of this study was to evaluate the treatment of bovine semen with the pan-caspase inhibitor benzyloxycarbonyl-Val-Ala-Asp-fluoromethyl ketone (Z-VAD-FMK), before or after freezing on semen quality. After the initial assessment, sperm from 4 bulls were pooled (Experiment 1) and cryopreserved in BioXcell containing 0, 20 and 100 μM Z-VAD-FMK. After thawing semen viability, motility, membrane integrity, as well as DNA fragmentation and ΔΨm were evaluated. In Experiment 2, bovine frozen/thawed sperm were incubated for 1 hr with 0, 20 and 100 µM Z-VAD-FMK before assessing the semen quality. The treatment with Z -VAD-FMK before cryopreservation improved post-thawing sperm motility compared to the control group (p < .05), while no differences were recorded in sperm viability and membrane integrity among groups (on average 86.8 ± 1.5 and 69.1 ± 1.4, respectively). Interestingly, at the highest concentration, DNA fragmentation decreased (p < .05), while the percentage of spermatozoa with high ΔΨm increased (p < .05). The results of Experiment 2 showed that 1-hr treatment with Z-VAD-FMK did not affect sperm motility and viability (on average 63.4 ± 5.8 and 83.7.1 ± 1.2, respectively). However, Z-VAD-FMK improved sperm membrane integrity (p < .05) and at the highest concentration tested decreased the proportion of sperm showing DNA fragmentation (p < .05). No differences were recorded in the percentage of spermatozoa with high ΔΨm (on average 57.0 ± 11.4). In conclusion, the treatment with 100 µM of the caspase inhibitor Z-VAD-FMK before freezing increased bovine sperm mass motility and ΔΨm, while decreasing sperm DNA fragmentation. Treatment of semen after thawing with 100 µM Z-VAD-FMK improved sperm membrane integrity and reduced DNA fragmentation.
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Affiliation(s)
- Nunzia Pagano
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | - Valentina Longobardi
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | - Carolina De Canditiis
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | | | | | - Kosior Michal Andrzej
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | - Maria Elena Pero
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | - Bianca Gasparrini
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
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The presence of synthetic polymers in the maturation medium affects the cryotolerance and developmental capacity after parthenogenic activation of vitrified goat oocytes. Cryobiology 2020; 93:84-90. [PMID: 32044324 DOI: 10.1016/j.cryobiol.2020.02.004] [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: 10/14/2019] [Revised: 01/09/2020] [Accepted: 02/06/2020] [Indexed: 11/22/2022]
Abstract
The purpose of this present study is to assess if addition of the synthetic polymers in maturation medium can influence cryotolerance and subsequently embryonic development of mammalian oocytes. We examined the roles of two polymers, including polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP), on in vitro maturation (IVM), embryonic developmental capacity, and cryotolerance of goat oocytes. The present study includes two parts. At first, goat cumulus-oocyte complexes (COCs) were matured in a medium supplemented with 10% fetal bovine serum (FBS), 3 mg/ml PVP, or 1 mg/ml PVA, respectively. Data of oocyte with first polar body, cleavage, and blastocyst following parthenogenetic activation (PA) were recorded. Secondly, after maturation in the above medium, oocytes were vitrified using the Cryotop technique and then the morphology, cleavage and blastocyst formation of vitrified oocytes have been checked. The results demonstrated that the adding of PVP or PVA in maturation medium can't affect IVM of goat oocytes in comparison with FBS, as concern cumulus cell expansion, first polar body formation, and embryonic development. Additionally, without plunging into liquid nitrogen, only exposure to the vitrification and warming solutions cannot also influence the quality of oocytes, in terms of morphology, cleavage, and blastocyst formation. However, after IVM with synthetic polymers and vitrification, the ratio of oocytes with standard morphology in PVP or PVA group was only 59.47% ± 3.56% or 54.86% ± 5.19%, respectively, and was significantly less than that in the FBS group (89.37% ± 4.52%, P < 0.05). Furthermore, the cleavage ratio of oocytes in PVP or PVA group was 37.41% ± 4.17% or 27.71% ± 3.91% and was considerably less than that in the FBS group (64.97% ± 4.69%, P < 0.05). In addition, the cleavage ratio in PVP group was statistically higher than that in PVA group (P < 0.05). In terms of blastocyst development, a significant difference was observed between the synthetic polymer group and the FBS group (24.96% ± 3.62%, P < 0.05). However, the blastocyst ratio in the PVA group (7.51% ± 1.68%) was statistically less than the PVP groups (13.20% ± 4.59%, P < 0.05) and the FBS group (P < 0.05). In conclusion, two potential serum replacements, either PVP or PVA, can support IVM and embryonic development of goat oocytes at the concentration used in this study. But IVM with synthetic polymers supplemented to maturation medium may reduce the cryotolerance of oocytes. Additionally, the supportive function of PVP on embryonic development of vitrified oocytes might be better than that of PVA.
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Guo X, Chen Z, Memon K, Chen X, Zhao G. An integrated microfluidic device for single cell trapping and osmotic behavior investigation of mouse oocytes. Cryobiology 2020; 92:267-271. [DOI: 10.1016/j.cryobiol.2019.09.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/27/2019] [Accepted: 09/30/2019] [Indexed: 10/25/2022]
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Amer M, Ismail N, GamalEl Din SF, Rashad EZ, Fakhry E, Abd El Hakim W, Ragab A. Effect of cryoprotectant-free vitrification versus conventional freezing on human testicular sperm motility: a prospective comparative study. HUM FERTIL 2019; 24:389-394. [PMID: 31838927 DOI: 10.1080/14647273.2019.1698774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study aimed to demonstrate the effect of conventional freezing versus cryoprotectant-free vitrification on the recovery of testicular sperm motility. Testicular samples were obtained from 50 patients with azoospermia for testicular biopsy ± potential sperm storage. We retrieved 100 spermatozoa from each patient divided equally into two straws. They were frozen using conventional freezing as a control group and cryoprotectant-free vitrification in micro-capillary system using open-pulled straws. Seven days later, cryopreserved straws were thawed and assessed in duplicate. The mean sperm motility between the original spermatozoa sample and the post warming sample was reduced after conventional freezing compared to cryoprotectant-free vitrification (4.48 ± 2.09% versus 3.25 ± 1.92%, p < 0.001; 4.48 ± 2.09% vs 3.68 ± 1.93%, p < 0.001, respectively). There was a significant difference between the two methods regarding the mean sperm motility after warming (3.38 ± 1.86% versus 3.76 ± 1.88%, p = 0.015). The mean recovery percent of testicular sperm motility from the original sperm sample was lower (p = 0.02) after conventional freezing compared to cryoprotectant-free vitrification (78.4 ± 28.17% versus 85.37 ± 23.63%). Overall, the rate of post-thaw recovery of human testicular sperm motility improved using cryoprotectant-free vitrification compared to conventional freezing.
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Affiliation(s)
- Medhat Amer
- Andrology, Sexology and STDs Department, Kasr Al-Ainy Faculty of Medicine, Cairo University, Cairo, Egypt.,Adam International Hospital, Giza, Egypt
| | - Nashaat Ismail
- Andrology and STDs Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Sameh Fayek GamalEl Din
- Andrology, Sexology and STDs Department, Kasr Al-Ainy Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | | | | | - Ahmed Ragab
- Andrology and STDs Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
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27
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Galarza DA, López-Sebastián A, Woelders H, Blesbois E, Santiago-Moreno J. Two-step accelerating freezing protocol yields a better motility, membranes and DNA integrities of thawed ram sperm than three-steps freezing protocols. Cryobiology 2019; 91:84-89. [DOI: 10.1016/j.cryobiol.2019.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/04/2019] [Accepted: 10/14/2019] [Indexed: 10/25/2022]
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28
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Wu B. Introductory Chapter: New Theory and Technology in Early Clinical Embryogenesis. EMBRYOLOGY - THEORY AND PRACTICE 2019. [DOI: 10.5772/intechopen.88331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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29
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Obara K, Tohgi N, Mii S, Hamada Y, Arakawa N, Aki R, Singh SR, Hoffman RM, Amoh Y. Hair-follicle-associated pluripotent stem cells derived from cryopreserved intact human hair follicles sustain multilineage differentiation potential. Sci Rep 2019; 9:9326. [PMID: 31249324 PMCID: PMC6597789 DOI: 10.1038/s41598-019-45740-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 06/14/2019] [Indexed: 12/23/2022] Open
Abstract
The bulge area of the hair follicle contains hair-follicle-associated pluripotent (HAP) stem cells. Here, we present effective cryopreservation procedures of the human hair follicle that preserve the differentiation potential of HAP stem cells. Whole hair follicles isolated from human scalp were cryopreserved by a slow-rate cooling medium and stored in liquid nitrogen. A careful thawing method was used to collect the upper parts of the human hair follicles which were cultured for four weeks in a Dulbecco’s Modified Eagle’s Medium with fetal bovine serum (FBS). Proliferating hair follicle cells were then shifted to DMEM/Ham’s Nutrient Mixture F-12 medium without FBS and allowed to grow for one week. These proliferating cells were able to produce HAP stem cell colonies with multilineage differentiation capacity. They produced keratinocytes, smooth muscle cells, cardiac muscle cells, neurons and glial cells. Interestingly, these cryopreserved hair follicles produced pluripotent HAP stem cell colonies similar to fresh follicles. These findings suggest that the cryopreserved whole human hair follicle preserves the ability to produce HAP stem cells, which will enable any individual to preserve a bank of these stem cells for personalized regenerative medicine.
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Affiliation(s)
- Koya Obara
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan
| | - Natsuko Tohgi
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan
| | - Sumiyuki Mii
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan
| | - Yuko Hamada
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan
| | - Nobuko Arakawa
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan
| | - Ryoichi Aki
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan
| | - Shree Ram Singh
- Basic Research Laboratory, National Cancer Institute, Frederick, MD, 21702, USA.
| | - Robert M Hoffman
- AntiCancer, Inc., 7917 Ostrow Street, San Diego, CA, 92111, USA. .,Department of Surgery, University of California, San Diego, CA, 92103, USA.
| | - Yasuyuki Amoh
- Department of Dermatology, Kitasato University School of Medicine, Minami Ward, Sagamihara, 252-0374, Japan.
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30
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Grötter LG, Cattaneo L, Marini PE, Kjelland ME, Ferré LB. Recent advances in bovine sperm cryopreservation techniques with a focus on sperm post-thaw quality optimization. Reprod Domest Anim 2019; 54:655-665. [PMID: 30681204 DOI: 10.1111/rda.13409] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/16/2019] [Indexed: 11/28/2022]
Abstract
Sperm cryopreservation facilitates the storage and transport of germplasm for its use in artificial insemination (AI) and other advanced reproductive technologies. The cryopreservation process can damage sperm and compromise functionality. Several cryobiological studies have found that the physical and biological factors that affect sperm survival at low temperatures during the cryopreservation process often involve the integrity of sperm membrane. In this review, the behaviour of the sperm membrane against cooling, cold shock, ice crystal formation, oxidative stress, osmotic changes, reorganization of the lipid bilayer and addition of cryoprotective agents (CPA) is discussed. In addition, the phenomenon of reactive oxygen species (ROS) and its relationship with the cryopreservation process is also described. Semen cryopreservation techniques have progressed slowly in past years, and the current performance, measured as post-thawed survival, is not very different compared to past decades. Recent advances in understanding the structure of the cell membrane, its function and metabolism have driven to new conservation systems, including lyophilization and vitrification. However, none of these technologies is commercially available, although its future appears very promising.
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Affiliation(s)
- Laura Guadalupe Grötter
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, UNL, Esperanza, Santa Fe, Argentina
| | - Luciano Cattaneo
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, UNL, Esperanza, Santa Fe, Argentina
| | - Patricia Estela Marini
- Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET) y Área Biología, Facultad de Ciencias Bioquímicas y Farmacéuticas, UNR, Rosario, Santa Fe, Argentina
| | - Michael E Kjelland
- Conservation, Genetics & Biotech, LLC, Vicksburg, Mississippi.,Mayville State University, Mayville, North Dakota
| | - Luis B Ferré
- Instituto Nacional de Tecnología Agropecuaria, Tres Arroyos, Buenos Aires, Argentina
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Pezo F, Romero F, Zambrano F, Sánchez RS. Preservation of boar semen: An update. Reprod Domest Anim 2019; 54:423-434. [DOI: 10.1111/rda.13389] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/28/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Felipe Pezo
- Laboratory of Reproductive Medicine and Molecular Endocrinology Center of Translational Medicine—Scientific and Technological Bioresource Nucleus (CEMT‐BIOREN) Temuco Chile
| | - Fernando Romero
- Laboratory of Neurosciences and Peptides Center for Biotechnology in Reproduction—Scientific and Technological Bioresource Nucleus (CEBIOR‐BIOREN) Temuco Chile
- Department of Preclinical Sciences, Faculty of Medicine Universidad de La Frontera Temuco Chile
| | - Fabiola Zambrano
- Laboratory of Reproductive Medicine and Molecular Endocrinology Center of Translational Medicine—Scientific and Technological Bioresource Nucleus (CEMT‐BIOREN) Temuco Chile
- Laboratory of Neurosciences and Peptides Center for Biotechnology in Reproduction—Scientific and Technological Bioresource Nucleus (CEBIOR‐BIOREN) Temuco Chile
| | - Raúl Segundo Sánchez
- Laboratory of Reproductive Medicine and Molecular Endocrinology Center of Translational Medicine—Scientific and Technological Bioresource Nucleus (CEMT‐BIOREN) Temuco Chile
- Laboratory of Neurosciences and Peptides Center for Biotechnology in Reproduction—Scientific and Technological Bioresource Nucleus (CEBIOR‐BIOREN) Temuco Chile
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Benvenutti L, Salvador RA, Til D, Senn AP, Tames DR, Amaral NLL, Amaral VLL. Wistar rats immature testicular tissue vitrification and heterotopic grafting. JBRA Assist Reprod 2018; 22:167-173. [PMID: 29693963 PMCID: PMC6106629 DOI: 10.5935/1518-0557.20180023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective To evaluate the efficiency of two vitrification protocols for rat immature
testicular tissue and heterotopic transplantation. Methods Twenty-four pre-pubertal Wistar rats were divided into three groups (n=8).
After orchiectomy, testicular fragments (3mm) from Groups 1 and 2 were
vitrified with different cryoprotectant concentration solutions, using
sterile inoculation loops as support. After warming up, the fragments were
submitted to cell viability assessment by Trypan blue and histological
evaluation. Vitrified (Groups 1 and 2) and fresh (Group 3) fragments were
grafted to the animals periauricular region. After 8 weeks of grafting, the
implant site was histologically analyzed. Results The viability recovery rate from Group 1 (72.09%) was higher
(p=0.02) than that from Group 2 (59.19%). Histological
analysis showed similar tubular integrity between fresh fragments from
Groups 1 and 3. Group 2 samples presented lower tubular integrity. We ran
histological analyses in the grafts from the Groups. In all groups, it was
possible to see the implant site, however, no fragment of testicular tissue
or signs of inflammation were histologically found in most samples from
Groups 1 and 3. In one sample from Group 2, we found degenerated
seminiferous tubules with necrosis and signs of an inflammatory process. In
another sample from Group 2, we found seminiferous tubules in the implant
site. Conclusion The vitrification of pre-pubertal testicular tissue of rats showed little
damage to cell viability through histological analysis when we used
cryoprotectants in a lower concentration. Heterotopic transplantation could
not preserve the structural organization of the testicular tissue.
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Affiliation(s)
- Larissa Benvenutti
- Laboratório de Biotecnologia da Reprodução (LBR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Rafael Alonso Salvador
- Laboratório de Biotecnologia da Reprodução (LBR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - David Til
- Laboratório de Biotecnologia da Reprodução (LBR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - Alfred Paul Senn
- Laboratório de Biotecnologia da Reprodução (LBR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | - David Rivero Tames
- Laboratório de Biotecnologia da Reprodução (LBR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
| | | | - Vera Lúcia Lângaro Amaral
- Laboratório de Biotecnologia da Reprodução (LBR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina, Brazil
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33
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Affiliation(s)
- Parker M. Pennington
- San Diego Zoo Global; Institute for Conservation Research; 15600 San Pasqual Valley Road Escondido CA 92027 USA
| | - Barbara S. Durrant
- San Diego Zoo Global; Institute for Conservation Research; 15600 San Pasqual Valley Road Escondido CA 92027 USA
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34
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Picton HM. Preservation of female fertility in humans and animal species. Anim Reprod 2018; 15:301-309. [PMID: 34178153 PMCID: PMC8202459 DOI: 10.21451/1984-3143-ar2018-0089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 07/06/2018] [Indexed: 12/03/2022] Open
Abstract
A detailed understanding of the cryobiology of gametes and complex tissues has led to the development of methods that facilitate the successful low temperature banking of isolated mature human oocytes, or immature oocytes in situ within fragments of human ovarian cortex. Although many outstanding research challenges remain to be addressed, the successful development of new treatments to preserve female fertility for a range of clinical indications has largely been underpinned by the conduct of extensive, fundamental research on oocytes and ovarian tissues from a number of laboratory and commercially important farm species. Indeed, the most recent evidence from large animals suggests that it is also possible to cryopreserve intact whole ovaries along with their supporting vasculature for later auto-transplantation and restoration of natural fertility. This review will explore how the methods developed to preserve human oocytes and ovarian tissues can now be used strategically to support the development of conservation strategies aimed at safeguarding the genetic diversity of commercially important domestic animals and also of preserving the female germplasm for wild animals and endangered species.
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Affiliation(s)
- Helen Mary Picton
- Reproduction and Early Development Research Group, Discovery and Translational Science Department, Leeds Institute Of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, UK
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35
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Dang-Nguyen TQ, Nguyen HT, Nguyen MT, Somfai T, Noguchi J, Kaneko H, Kikuchi K. Maturation ability after transfer of freeze-dried germinal vesicles from porcine oocytes. Anim Sci J 2018; 89:1253-1260. [PMID: 29943513 DOI: 10.1111/asj.13067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/23/2018] [Indexed: 11/26/2022]
Abstract
The purpose of this study was to examine whether freeze-dried germinal vesicles (GV) can be matured in vitro after being injected into enucleated fresh oocytes in pigs as an alternative method for conservation of genetic resources. Although no reduction of the size of GV (p = .094), resveratrol treatment significantly enhanced the survival rates following GV transfer (GVT) (p < .001). Supplementation with 100 or 200 mmol/L trehalose in freeze-drying medium significantly increased the proportions of GVs with intact nuclear membrane and DNA integrity compared with the control group. Following transfer of freeze-dried GVs into enucleated fresh oocytes, the proportion of reconstructed oocytes reached the metaphase-II stage (2.4% ± 1.4%) was significantly lower (p < .05) than that of the in vitro matured control group (83.2% ± 2.5%), it was comparable with the GVT control group (7.4% ± 2.7%). The rates of freeze-dried GVs with intact nuclear membrane and DNA stored at -20°C for 5 days were significantly higher (p < .05) than those at 4°C and room temperature. The rates of intact nuclear membrane and DNA in the freeze-dried GV stored for 15 or 30 days at -20, 4°C and RT were not significantly different. In conclusion, matured oocytes were produced derived from freeze-dried GVs.
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Affiliation(s)
- Thanh Quang Dang-Nguyen
- Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Hiep Thi Nguyen
- Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan.,The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi City, Yamaguchi, Japan.,Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Men Thi Nguyen
- Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Tamas Somfai
- Institute of Livestock and Grassland Science, NARO, Tsukuba, Ibaraki, Japan
| | - Junko Noguchi
- Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Hiroyuki Kaneko
- Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Kazuhiro Kikuchi
- Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan.,The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi City, Yamaguchi, Japan
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36
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Barrera N, dos Santos Neto PC, Cuadro F, Bosolasco D, Mulet AP, Crispo M, Menchaca A. Impact of delipidated estrous sheep serum supplementation on in vitro maturation, cryotolerance and endoplasmic reticulum stress gene expression of sheep oocytes. PLoS One 2018; 13:e0198742. [PMID: 29912910 PMCID: PMC6005475 DOI: 10.1371/journal.pone.0198742] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/24/2018] [Indexed: 11/21/2022] Open
Abstract
High lipid content of oocytes and embryos in domestic animals is one of the well-known factors associated with poor cryosurvival. Herein, we wanted to determine whether the use of delipidated estrous sheep serum during in vitro maturation (IVM) of ovine oocytes reduces the cytoplasmic lipid droplets content and improves embryo development and cryotolerance after vitrification. Cumulus oocytes complexes (COCs) were matured in vitro for 24 h in medium supplemented with whole or delipidated estrous sheep serum prior to vitrification. Neutral lipid present in lipid droplets of COCs, cleavage rate, embryo development rate on Day 6 and Day 8, and hatching rate on Day 8, were compared among experimental groups. Endoplasmic reticulum stress genes were evaluated in in vitro matured COCs under different lipid conditions prior to vitrification. The lipid droplets’ content (mean fluorescence intensity) of oocytes cultured with IVM media supplemented with delipidated serum was lower than COCs matured with whole serum (7.6 ± 1.7 vs. 22.8 ± 5.0 arbitrary units, respectively; P< 0.05). Despite IVM treatment, oocytes subjected to vitrification showed impaired competence compared with the non-vitrified groups (P<0.05). No significant differences in embryo production were observed in non-vitrified COCs after maturation in delipidated or whole serum (33.4±4.9 vs 31.9 ±4.2). COCs matured in delipidated serum and subjected to vitrification showed increased expression of ATF4, ATF6, GRP78, and CHOP10 genes (ER stress markers). Collectively, our results demonstrate that although supplementation of IVM medium with delipidated estrous sheep serum reduces the presence of cytoplasmic lipid droplets in oocytes after maturation, oocyte cryotolerance is not improved. Notably, the expression of genes associated with the unfolded protein response (UPR) was increased in COCs, with fewer lipid droplets subjected to vitrification, suggesting that oocyte cryopreservation is associated with ER stress and activation of adaptive responses.
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Affiliation(s)
- Natalibeth Barrera
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
- * E-mail: (NB); (AM)
| | | | - Federico Cuadro
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | - Diego Bosolasco
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | - Ana P. Mulet
- Unidad de Animales Transgénicos y de Experimentación, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Martina Crispo
- Unidad de Animales Transgénicos y de Experimentación, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Alejo Menchaca
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
- * E-mail: (NB); (AM)
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37
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Liang YY, Parnpai R. Effect of vitrification procedures on the subsequent development of in vitro matured swamp buffalo oocytes following in vitro fertilization. Anim Sci J 2018; 89:1201-1206. [DOI: 10.1111/asj.13044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 04/04/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan Yuan Liang
- Embryo Technology and Stem Cell Research Center; School of Biotechnology; Institute of Agricultural Technology; Suranaree University of Technology; Nakhon Ratchasima Thailand
| | - Rangsun Parnpai
- Embryo Technology and Stem Cell Research Center; School of Biotechnology; Institute of Agricultural Technology; Suranaree University of Technology; Nakhon Ratchasima Thailand
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38
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Ordoqui R, Barrera N, Montes JM, Canepa M, Bonelli C, Surka C, Torrens A, Cantú L, Plessis SSD. A retrospective study on sperm banking: a Uruguayan experience. JBRA Assist Reprod 2018; 22:82-88. [PMID: 29727140 PMCID: PMC5982550 DOI: 10.5935/1518-0557.20180037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective The purpose of this study was to investigate the status of homologous sperm
banking in Uruguay. Methods A retrospective investigation was performed on data collected between 2013
and 2015. Reasons for sperm banking, patient age, pre-freeze and post-thaw
semen parameters, and recovery rates were analyzed. Results 623 samples were cryobanked between 2013 and 2015. Only 324 samples were
considered for analysis after selection based on inclusion criteria. In most
cases the samples were stored because the patients were undergoing assisted
reproductive technology (ART) treatment (n=190; 58,64%) or for oncological
reasons (n=113; 34,88%). The median age of bankers was 34 years. In the
cancer group, 61.95% (n=70) of the subjects had been diagnosed with
testicular cancer. Medians of semen parameters for both groups were above
the lower reference limits dictated by the World Health Organization (2010). In fresh samples, a
significant difference was observed in progressive motility (47% vs. 56%)
between ART and oncological patients. After thawing, total motility (27% vs.
32%), progressive motility (19% vs. 22%), and vitality (48% vs. 56%)
differed significantly between ART and oncological bankers. Conclusion Semen banking has been performed successfully in Uruguay and outcomes are on
par with international standards. Surprisingly, the semen parameters of the
cancer group were nearly normal.
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Affiliation(s)
- Rosina Ordoqui
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Natalibeth Barrera
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - José María Montes
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Mariel Canepa
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Carla Bonelli
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Carolina Surka
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Andrea Torrens
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Lidia Cantú
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Stefan S du Plessis
- Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Fujii T, Hirayama H, Fukuda S, Kageyama S, Naito A, Yoshino H, Moriyasu S, Yamazaki T, Sakamoto K, Hayakawa H, Takahashi K, Takahashi Y, Sawai K. Expression and localization of aquaporins 3 and 7 in bull spermatozoa and their relevance to sperm motility after cryopreservation. J Reprod Dev 2018; 64:327-335. [PMID: 29798965 PMCID: PMC6105742 DOI: 10.1262/jrd.2017-166] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Artificial insemination with cryopreserved semen is a well-developed technique commonly used for controlled reproduction in cattle. However, despite current technical advances,
cryopreservation continues to damage bull spermatozoa, resulting in a loss of approximately 30 to 50% of viable spermatozoa post thawing. To further improve the efficiency of
cryopreservation of bull spermatozoa, understanding the molecular mechanisms underlying the cryobiological properties that affect cryoinjuries during cryopreservation process of bull
spermatozoa is required. In this study, we examined the expression and localization of aquaporin (AQP) 3 and AQP7 in fresh, cooled, and frozen-thawed bull spermatozoa. Furthermore, we
investigated the relevance of AQP3 and AQP7 to motility and to membrane integrity in frozen-thawed bull spermatozoa. Western blotting against AQP3 and AQP7 in bull spermatozoa revealed bands
with molecular weights of approximately 42 kDa and 53 kDa, respectively. In immunocytochemistry analyses, immunostaining of AQP3 was clearly observed in the principal piece of the sperm
tail. Two immunostaining patterns were observed for AQP7 ―pattern 1: diffuse staining in head and entire tail, and pattern 2: diffuse staining in head and clear staining in mid-piece.
Cooling and freeze-thawing did not affect the localization pattern of AQP7 and the relative abundances of AQP3 and AQP7 evaluated by Western blotting. Furthermore, we demonstrated that the
relative abundances of AQP3 and AQP7 varied among ejaculates, and they were positively related to sperm motility, particularly sperm velocity, post freeze-thawing. Our findings suggest that
AQP3 and AQP7 are possibly involved in the tolerance to freeze-thawing in bull spermatozoa, particularly in the sperm’s tail.
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Affiliation(s)
- Takashi Fujii
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan.,United Graduate School of Agricultural Science, Iwate University, Iwate 020-8550, Japan
| | - Hiroki Hirayama
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan.,Department of Bioproduction, Faculty of Bioindustry, Tokyo University of Agriculture, Hokkaido 099-2493, Japan
| | - Shigeo Fukuda
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Soichi Kageyama
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Akira Naito
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Hitomi Yoshino
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Satoru Moriyasu
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | | | - Kozo Sakamoto
- Genetics Hokkaido Association, Hokkaido 089-0103, Japan
| | | | | | | | - Ken Sawai
- United Graduate School of Agricultural Science, Iwate University, Iwate 020-8550, Japan
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Cryoprotectant agents and cooling effect on embryos of Macrobrachium amazonicum. ZYGOTE 2018; 26:111-118. [PMID: 29655380 DOI: 10.1017/s0967199417000661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SummaryThere are few reports of cryopreservation and injuries in Macrobrachium amazonicum embryos. Thus, the aim of this study was to analyze the effects of cryoprotectants agents and cooling on stage VIII of this species. Fertilized eggs from ovigerous females were removed from the incubation chamber, then placed in 10 ml Falcon tubes with a cryoprotectant solution and saline-free calcium solution. Thus, the embryos underwent a cooling curve of 1°C per min until reaching 5°C, and then were stored for 2 h. The tubes containing the embryos were washed to remove the cryoprotectant, acclimated for 5 min and then transferred to 50 ml incubators. At the end of the 24-h period, living embryos from each tube were counted and tabulated. A pool of embryos was fixed with 4% formaldehyde and then subjected to histology using 3-mm thick sections and stained with haematoxylin/eosin. Another pool was used for biometric analysis in which length, width and volume were analyzed. The cryoprotectants agents used were: dimethylsulfoxide (DMSO), methyl alcohol, ethylene glycol at 1, 5 and 10% and sucrose (0.5 M). Variance analysis was performed followed by Tukey's honest significant difference (HSD) test at 5% significance level. DMSO cryoprotectant affected embryo survival the least with rates of 71.8, 36.2 and 0% for concentrations of 1, 5 and 10%, respectively. Ethylene glycol caused 100% mortality at all the concentrations used. It was not possible to observe the interference of cooling and cryoprotectants on embryonic structures in this study.
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Stallion sperm freezing with sucrose extenders: A strategy to avoid permeable cryoprotectants. Anim Reprod Sci 2018; 191:85-91. [DOI: 10.1016/j.anireprosci.2018.02.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 02/14/2018] [Accepted: 02/19/2018] [Indexed: 01/27/2023]
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A chemical compound based on methylxanthine-polyphenols lowers nitric oxide levels and increases post-thaw human sperm viability. ZYGOTE 2017; 25:719-730. [PMID: 29179786 DOI: 10.1017/s0967199417000600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We produced a new chemical compound based on methylxanthines and polyphenols (CCMP) present in the chemical matrix of guaraná (Paullinia cupana), a seed extract with antioxidant properties. After supplementation with the standard extract of resveratrol, a well documented antioxidant found in other plant sources, we investigated whether this resveratrol-enriched compound could improve sperm viability and modulate differentially reactive oxygen species (ROS) and nitric oxide (NO) levels in thawed sperm. Sperm samples obtained from healthy young donors were treated with different concentrations of guaraná extract (0.1, 1, 5 or 10 mg/ml) and cells were frozen at -80°C for 24 h. In addition, the potential protective effects of guaraná treatment on sperm treated with pro-oxidant compound (200 µM hydrogen peroxide, H2O2) were assessed. Samples were also exposed to three concentrations of CCMP before being frozen in liquid nitrogen (-196°C) or in an ultrafreezer (-80°C) for 24 h, and both pre-freezing and post-thaw measurements of viability and oxidative stress were performed. Guaraná supplementation at 10 mg/ml significantly increased post-thaw viability and decreased oxidative metabolism of the sperm. Moreover, selected concentrations of CCMP improved viability and oxidative metabolism in sperm samples pre-freezing. Furthermore, CCMP showed cryoprotective activity by increasing viability and decreasing oxidative stress in post-thaw samples. In summary, these findings suggested that CCMP supplementation acts as a cryoprotectant to modulate ROS and NO levels in thawed sperm. CCMP could be used to enhance sperm quality and reproductive success.
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Effects of glycerol concentration on the motility of equine spermatozoa after thawing. ACTA VET BRNO 2017. [DOI: 10.2754/avb201786030263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study was to evaluate the effect of different glycerol concentrations on stallion sperm motility after thawing. For statistical analysis 228 ejaculates were used. The semen was filtrated to remove gel fraction; macroscopic and microscopic evaluation was done. After evaluation the ejaculates were centrifuged, the supernatant was removed and the spermatozoa were re-suspended in French diluent with different concentrations of glycerol (2.0; 2.5; 4.0 and 6.0%). The choice of concentration of glycerol for a particular ejaculate was completely random. The spermatozoa were packed into 0.5 ml straws and placed for 2 h in a fridge (4 °C). Then the straws were placed in liquid nitrogen vapor (-80 to -100 °C) and after 10 min plunged into liquid nitrogen and stored at -196 °C for at least 48 h. The selected straws were individually thawed in a 38 °C water bath for 30 s prior to post-freezing analysis. Two progressive motilities using phase contrast microscopy (magnification × 400) were recorded: motility II immediately after thawing and motility III after 2 h incubation in a 38 °C water bath. The Spearmen/Kendall rang correlation test was selected to prove whether there is a correlation between the selected indices (glycerol concentration and motility II and motility III). Nonparametric multiple group analysis (Steel-Dwass test) was applied for finding the differences between groups. The Spearman/Kendall rang correlation proved a relationship between motility II and glycerol concentration. It can be stated that in this study the best glycerol concentration for freezing equine spermatozoa is with a concentration of 4.0% glycerol.
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Li J, Parrilla I, Ortega MD, Martinez EA, Rodriguez-Martinez H, Roca J. Post-thaw boar sperm motility is affected by prolonged storage of sperm in liquid nitrogen. A retrospective study. Cryobiology 2017; 80:119-125. [PMID: 29146065 DOI: 10.1016/j.cryobiol.2017.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/06/2017] [Accepted: 11/10/2017] [Indexed: 02/02/2023]
Abstract
Owing to the quick genetic turnover of the pig industry, most AI-boar sires live 2-3 yr, a period during which for 1-2 yr their semen is extended and used in liquid form for AI. Despite showing low cryosurvival, affecting fertility after AI, boar semen is frozen for easiness of transport overseas and reposition of valuable genetics. For the latter, semen is stored in liquid nitrogen (LN2, cryostorage) for many years, a controversial practice. Here we studied how length of cryostorage could affect sperm quality. Straws (0.5 mL) frozen using the same cryopreservation protocol at one specific location from AI- sires of proven fertility were stored in LN2 for up to 8 yr. Post-thaw sperm quality was evaluated after 2, 4 or 8 yr of cryostorage, always compared to early thawing (15 d after freezing). Sperm motility and kinematics were evaluated post-thaw using CASA and sperm viability was cytometrically evaluated using specific fluorophores. Sperm viability was not affected by length of cryostorage, but total and progressive sperm motility were lower (p < 0.01) in sperm samples cryostored for 4 or 8 yr compared to those thawed 15 d after freezing. Cryostorage time affected sperm kinetics, but with greater intensity in the samples cryostored for 4 yr (p < 0.001) than in those for 2 yr (p < 0.01). The fact that the major phenotypic characteristic of boar spermatozoa, motility, is constrained by time of cryostorage should be considered when building cryobanks of pig semen. Attention should be placed on the finding that >2 yr of cryostorage time can be particularly detrimental for the post-thaw motility of some sires, which might require increasing sperm numbers for AI.
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Affiliation(s)
- Junwei Li
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Spain
| | - Inmaculada Parrilla
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Spain
| | - Maria D Ortega
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Spain
| | - Emilio A Martinez
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Spain
| | | | - Jordi Roca
- Department of Medicine and Animal Surgery, Faculty of Veterinary Science, University of Murcia, Spain.
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Demirel MA, Acar DB, Ekim B, Çelikkan FT, Alkan KK, Salar S, Erdemli EA, Özkavukçu S, Yar SS, Kanca H, Baştan A. The evaluation of xenotransplantation of feline ovarian tissue vitrified by needle immersed vitrification technique into male immunodeficient mice. Cell Tissue Bank 2017; 19:133-147. [DOI: 10.1007/s10561-017-9663-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/05/2017] [Indexed: 10/18/2022]
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Key Issues Related to Cryopreservation and Storage of Stem Cells and Cancer Stem Cells: Protecting Biological Integrity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 951:1-12. [PMID: 27837550 DOI: 10.1007/978-3-319-45457-3_1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cryopreservation and biobanking of stem cells are becoming increasingly important as stem cell technology and application attract the interest of industry, academic research, healthcare and patient organisations. Stem cell are already being used in the treatment of some diseases and it is anticipated that stem cell therapy will play a central role in future medicine. Similarly, the discovery of both hematopoietic and solid tumor stem cells and their clinical relevance have profoundly altered paradigms for cancer research as the cancer stem cells are considered promising new targets against cancer. Consequently, long-term cryopreservation and banking of normal and malignant stem cells is crucial and will inevitably become a routine procedure that requires highly regulated and safe methods of specimen storage. There is, however, an increasing amount of evidence showing contradictory results on the impact of cryopreservation and thawing of stem cells, including extensive physical and biological stresses, apoptosis and necrosis, mitochondrial injuries, changes to basal respiration and ATP production, cellular structural damage, telomere shortening and cellular senescence, and DNA damage and oxidative stress. Notably, cell surface proteins that play a major role in stem cell fate and are used as the biomarkers of stem cells are more vulnerable to cold stress than other proteins. There are also data supporting the alteration in some biological features and genetic integrity at the molecular level of the post-thawed stem cells. This article reviews the current and future challenges of cryopreservation of stem cells and stresses the need for further rigorous research on the methodologies for freezing and utilizing cancer stem cells following long-term storage.
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Woods EJ, Thirumala S, Badhe-Buchanan SS, Clarke D, Mathew AJ. Off the shelf cellular therapeutics: Factors to consider during cryopreservation and storage of human cells for clinical use. Cytotherapy 2017; 18:697-711. [PMID: 27173747 DOI: 10.1016/j.jcyt.2016.03.295] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/14/2016] [Accepted: 03/18/2016] [Indexed: 12/28/2022]
Abstract
The field of cellular therapeutics has immense potential, affording an exciting array of applications in unmet medical needs. One of several key issues is an emphasis on getting these therapies from bench to bedside without compromising safety and efficacy. The successful commercialization of cellular therapeutics will require many to extend the shelf-life of these therapies beyond shipping "fresh" at ambient or chilled temperatures for "just in time" infusion. Cryopreservation is an attractive option and offers potential advantages, such as storing and retaining patient samples in case of a relapse, banking large quantities of allogeneic cells for broader distribution and use and retaining testing samples for leukocyte antigen typing and matching. However, cryopreservation is only useful if cells can be reanimated to physiological life with negligible loss of viability and functionality. Also critical is the logistics of storing, processing and transporting cells in clinically appropriate packaging systems and storage devices consistent with quality and regulatory standards. Rationalized approaches to develop commercial-scale cell therapies require an efficient cryopreservation system that provides the ability to inventory standardized products with maximized shelf life for later on-demand distribution and use, as well as a method that is scientifically sound and optimized for the cell of interest. The objective of this review is to bridge this gap between the basic science of cryobiology and its application in this context by identifying several key aspects of cryopreservation science in a format that may be easily integrated into mainstream cell therapy manufacture.
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Affiliation(s)
- Erik J Woods
- Cook Regentec, Indianapolis, IN, USA; Indiana University School of Medicine, Indianapolis, IN, USA; Process and Product Development Subcommittee, International Society for Cellular Therapy, Vancouver, BC, Canada.
| | | | | | - Dominic Clarke
- Process and Product Development Subcommittee, International Society for Cellular Therapy, Vancouver, BC, Canada; Charter Medical Ltd, Winston-Salem, NC, USA
| | - Aby J Mathew
- Process and Product Development Subcommittee, International Society for Cellular Therapy, Vancouver, BC, Canada; BioLife Solutions, Bothell, WA, USA
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Atencio García VJ, Dorado Longas M, Montes Prieto C, Prieto-Guevara M, Espinosa-Araujo J. Crioconservación de semen de dorada Brycon moorei con dimetilsulfóxido. REVISTA COLOMBIANA DE BIOTECNOLOGÍA 2017. [DOI: 10.15446/rev.colomb.biote.v19n2.59987] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
El objetivo fue evaluar la calidad del semen descongelado de dorada Brycon moorei crioconservado con dimetilsulfóxido (DMSO) a tres porcentajes de inclusión. El semen se obtuvo de nueve machos mantenidos en cautiverio en la Estación Piscícola Repelón (Atlántico, Col), inducidos con extracto pituitario de carpa (4,5 mg/kg). El semen fue diluido en proporción 1:3 con un diluyente compuesto de DMSO a tres porcentajes 5%, 10% y 15%; glucosa al 6% y yema de huevo al 12%; empacado en macrotubos de 2,5 ml, congelados en vapores de nitrógeno y después de tres meses descongelados a 35°C durante 90 s. Semen fresco fue considerando como tratamiento control. En semen descongelado se evaluó movilidad total, tipos de movilidades, progresividad, velocidades y concentración espermática con el programa Sperm Class Analyzer SCA®; adicionalmente en semen fresco se determinó volumen, color y tiempo de activación. El semen fresco presentó movilidad mayor a 80% y tiempo de activación entre 28,5 y 41 s; mientras que, la concentración espermática osciló entre 10188,1 y 14590,2 millones/ml. La movilidad total del semen descongelado fue mayor cuando DMSO se incluyó a 5% (40,1±5,0%) o 10% (43,3±8,7%) (p>0,05); pero a 15% registró la menor movilidad (30,6±7,9%) y el mayor porcentaje de espermatozoides inmóviles (69.4±7.9%) (p<0,05); lo cual sugiere que inclusiones de DMSO por encima de 10% ocasionan mayores daños al espermatozoide de dorada. Los resultados permiten concluir que DMSO debe ser incluido entre 5 y 10%, junto con glucosa al 6% y yema de huevo al 12% para crioconservar semen de dorada.
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Chen P, Pan Y, Cui Y, Wen Z, Liu P, He H, Li Q, Peng X, Zhao T, Yu S. Insulin-like growth factor I enhances the developmental competence of yak embryos by modulating aquaporin 3. Reprod Domest Anim 2017; 52:825-835. [DOI: 10.1111/rda.12985] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 03/19/2017] [Indexed: 12/27/2022]
Affiliation(s)
- P Chen
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Y Pan
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Y Cui
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Z Wen
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - P Liu
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - H He
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Q Li
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - X Peng
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - T Zhao
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - S Yu
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
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Efficiency of mannitol-supplemented medium during adding/removing ovarian tissue with penetrating cryoprotective agents. Cell Tissue Bank 2017; 19:123-132. [PMID: 28365880 DOI: 10.1007/s10561-017-9623-8] [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: 01/17/2017] [Accepted: 03/29/2017] [Indexed: 10/19/2022]
Abstract
Most protocols to cryopreserve ovarian tissue utilize the permeable cryoprotective agents (CPAs) in 1.5 M concentration. However the issues related to the ability to use higher concentrations of CPAs have remained open. The research aim was to assess the efficiency of media containing osmotically active sugars (sucrose, mannitol) at stepwise adding/removing of 3 M dimethylsulphoxide (DMSO) and propanediol (PROH) on ovarian tissue integrity. After the CPAs adding/removing the ovarian tissue injury was histologically examined, as well as the oocyte volume in tissue structure was assessed. It has been found, that after adding/removing of PROH and DMSO solutions the maximum amount of normal follicles made 67-93% when using Dulbecco's Modified Eagle Medium (DMEM) with 200 mM sucrose. Assessment of tissue damage after adding/removing of CPAs has demonstrated that the percentage of normal follicles was 83-87% using DMSO in presence of both sucrose and mannitol as the dilution media components. While removing PROH the level of follicles preservation was 2.5× higher when using mannitol compared with sucrose. Our results indicate that the ovarian tissue injury was minimal during adding 3 M CPAs using DMEM, containing sucrose and following application of mannitol at removing both DMSO and PROH.
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