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Comizzoli P, Amelkina O, Lee PC. Damages and stress responses in sperm cells and other germplasms during dehydration and storage at nonfreezing temperatures for fertility preservation. Mol Reprod Dev 2022; 89:565-578. [PMID: 36370428 DOI: 10.1002/mrd.23651] [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: 08/28/2022] [Revised: 10/26/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022]
Abstract
Long-term preservation of sperm, oocytes, and gonadal tissues at ambient temperatures has the potential to lower the costs and simplify biobanking in human reproductive medicine, as well as for the management of animal populations. Over the past decades, different dehydration protocols and long-term storage solutions at nonfreezing temperatures have been explored, mainly for mammalian sperm cells. Oocytes and gonadal tissues are more challenging to dehydrate so little to no progress have been made. Currently, the detrimental effects of the drying process itself are better characterized than the impact of long-term storage at nonfreezing temperatures. While structural and functional properties of germ cells can be preserved after dehydration, a long list of damages and stresses in nuclei, organelles, and cytoplasmic membranes have been reported and sometimes mitigated. Characterizing those damages and better understanding the response of germ cells and tissues to the stress of dehydration is fundamental. It will contribute to the development of optimal protocols while proving the safety of alternative storage options for fertility preservation. The objective of this review is to (1) document the types of damages and stress responses, as well as their mitigation in cells dried with different techniques, and (2) propose new research directions.
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Affiliation(s)
- Pierre Comizzoli
- Smithsonian's National Zoo and Conservation Biology Institute, Veterinary Hospital, Washington, District of Columbia, USA
| | - Olga Amelkina
- Smithsonian's National Zoo and Conservation Biology Institute, Veterinary Hospital, Washington, District of Columbia, USA
| | - Pei-Chih Lee
- Smithsonian's National Zoo and Conservation Biology Institute, Veterinary Hospital, Washington, District of Columbia, USA
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2
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Freeze Drying as a Method of Long-Term Conservation of Mammalian Semen – A Review. ANNALS OF ANIMAL SCIENCE 2021. [DOI: 10.2478/aoas-2020-0122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
With the development of biotechnological methods that allow the manipulation and free exchange of genetic material, the methods for collecting and storing such material need to be improved. To date, freezing in liquid nitrogen has allowed the storage of cells and entire plant and animal tissues for practically unlimited times. However, alternatives are still being sought to eliminate the constant need to maintain samples at a low temperature. Lyophilization or freeze drying is an alternative to standard freezing procedures. The storage of samples (lyophilisates) does not require specialised equipment but only refines the preservation method itself. In the case of cells capable of movement e.g., sperm, they lose the ability to reach the oocyte in vivo and for in vitro fertilization (IVF) because of the lyophilization process. However, freeze-dried sperm may be used for in vitro fertilization by intracytoplasmic sperm injection (ICSI), based on the results obtained in cleavage, embryo development and the production of live born offspring after embryo transfer. Studies on the lyophilization of sperm have been performed on many animal species, both in the laboratory and in livestock. This conservation method is considered to create biobanks for genetically valuable and endangered species with the simultaneous application of ICSI. This review article aimed to present the issues of the freeze-drying process of mammalian semen and help find solutions that will improve this technique of the long-term preservation of biological material.
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Bossi RDL, Cabral M, Oliveira M, Lopes S, Hurtado R, Sampaio M, Geber S. Ultrastructural analysis of Lyophilized Human Spermatozoa. JBRA Assist Reprod 2021; 25:473-479. [PMID: 34286941 PMCID: PMC8312306 DOI: 10.5935/1518-0557.20210028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective: Lyophilization is potentially more practical and cost-effective alternative for sperm preservation. However, there are no studies that evaluate the ultrastructure of human spermatozoa after lyophilization. Therefore, the aim of our study was to evaluate the ultrasctructure of lyophilized spermatozoa using Transmission Electron Microscopy. Methods: From a total of 21 donated seminal samples, 30 aliquots were originated and divided into two aliquots so that one could have been submitted to cryopreservation/thaw and the other for lyophilization/rehydration. The liquefied aliquots were homogenized at room temperature. Samples assigned for cryopreservation were placed in straws and samples assigned for lyophilization were placed in the appropriate vials. Cryopreservation samples were placed at -30oC for 30 minutes subsequently for 30 minutes at vapour phase and then plunged into liquid nitrogen. Lately, were warmed in water bath at 37oC for 10 minutes followed by 10 minutes centrifugation. The pellet was resuspended and analysed in a Makler chamber. The semen vials assigned for lyophilization were loaded into a pre-fixed freeze-drying chamber. Following lyophilization, vials were removed from the freeze-drying chamber and kept at 4oC until rehydration. TEM was performed after rehydration and thawing. Sperm samples were fixed, rinsed in buffer, post fixed and dehydration was carried out in escalating concentrations of alcohol solution, acetone and then, embedding in Epon resin. Ultrathin sections were stained and examined in a Transmission Electron Microscope. Results: Analysis of sperm after freezing/thawing using Transmission Electron Microscopy showed lesions to the midpiece, with some mitochondria degeneration and random rupture of plasma membrane. In the head, we identified intact plasma membrane, nucleus and acrosome, as in the flagellum all main structures remained intact including the plasma membrane, the longitudinal columns of dense fibers and the semicircular fibers. Analysis by Transmission Electron Microscopy showed that spermatozoa heads had ruptured plasma membranes, absence of acrosomes, nuclei with heterogeneous and decompressed chromatin. Mitochondria were deteriorated in the midpiece. Longitudinal columns of dense fibers were absent in the flagellum. Axonemes, in cross-sections, were disrupted with disorganized structures. Conclusions: To our knowledge, our study demonstrated, for the first time, the structure of the human spermatozoa after lyophilization using Transmission Electron Microscopy. The use of a fixed lyophilization protocol with media containing cryoprotectants might explain the damage to the structures. More studies are necessary to improve the results of sperm lyophilization. In the future, the use of lyophilization of spermatozoa might reduce the costs of fertility preservation, since there will be no need for storage space and transportation is simpler.
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Affiliation(s)
- Renata de Lima Bossi
- Department of Obstetrics and Gynaecology of the Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.,ORIGEN, Center for Reproductive Medicine, Belo Horizonte, MG, Brazil
| | - Marcelo Cabral
- Department of Obstetrics and Gynaecology of the Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Monica Oliveira
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Sávia Lopes
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rodrigo Hurtado
- Department of Obstetrics and Gynaecology of the Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.,ORIGEN, Center for Reproductive Medicine, Belo Horizonte, MG, Brazil
| | - Marcos Sampaio
- ORIGEN, Center for Reproductive Medicine, Belo Horizonte, MG, Brazil
| | - Selmo Geber
- Department of Obstetrics and Gynaecology of the Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.,ORIGEN, Center for Reproductive Medicine, Belo Horizonte, MG, Brazil
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Exploring dry storage as an alternative biobanking strategy inspired by Nature. Theriogenology 2019; 126:17-27. [DOI: 10.1016/j.theriogenology.2018.11.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/20/2018] [Accepted: 11/25/2018] [Indexed: 12/13/2022]
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5
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Kusakabe H. Production of mouse fetuses using spermatozoa exposed temporarily to high temperature or continuously to room temperature after freeze-drying in Na +-free/K +-rich EGTA buffer. Cryobiology 2019; 87:105-109. [PMID: 30682339 DOI: 10.1016/j.cryobiol.2019.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 01/21/2019] [Accepted: 01/21/2019] [Indexed: 12/13/2022]
Abstract
Present study aimed to determine to what extent freeze-dried spermatozoa were able to withstand high-temperature conditions: transient increase in storage temperature and long-term exposure to room temperature. Mouse spermatozoa were freeze-dried in EGTA/Tris-HCl buffered solution alkalinized using KOH (K-ETBS, pH 7.7), and then stored for up to 7 months at 4 °C or 25 °C. After 2 months' storage, some of the 4°C-stored spermatozoa were exposed to 40 °C for 1 week or 1 month, then again stored at 4 °C for the remaining storage period. Following storage, rehydrated spermatozoa were injected into mouse oocytes. The resulting zygotes were assessed for chromosome damage, in vitro development up to the blastocyst stage, and post-implantation development to normal fetuses on day 18 of gestation. In storage at 4 °C, one-week exposure to 40 °C had no adverse effect on the chromosome integrity and developmental competence compared to non-exposure to 40 °C (continuous storage at 4 °C). In contrast, one-month exposure to 40 °C caused an increasing level of chromosome damage (36%, P < 0.05) and reduced frequencies of blastocysts (54%, P < 0.05) and normal fetuses (36%, P < 0.05) compared to the frequencies obtained by continuous storage at 4 °C (15%, 82% and 52%, respectively). Storage at 25 °C resulted in accumulation of chromosome damage (27%, P < 0.05), leading to decreased blastocyst formation (63%, P < 0.05). But, the frequency of normal fetus (44%) was not significantly different from that obtained by continuous storage at 4 °C. Consequently, mouse spermatozoa freeze-dried in K-ETBS withstood temporary exposure to 40 °C for 1 week. Chromosome damage accumulated in spermatozoa during storage at 25 °C.
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Affiliation(s)
- Hirokazu Kusakabe
- Department of Biological Sciences, Asahikawa Medical University, 2-1-1-1 Midorigaoka-higashi, Asahikawa, 078-8510, Japan.
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6
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In vitro developmental ability of ovine oocytes following intracytoplasmic injection with freeze-dried spermatozoa. Sci Rep 2017; 7:1096. [PMID: 28439073 PMCID: PMC5430622 DOI: 10.1038/s41598-017-00583-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/03/2017] [Indexed: 12/11/2022] Open
Abstract
Freeze-drying (FD) is a new and alternative method to preserve spermatozoa in refrigeration or at room temperature. Suitable protection is required to maintain the sperm DNA integrity during the whole process and storage. The aim of this study was to examine the effect of rosmarinic acid and storage temperature on the DNA integrity of freeze-dried ram sperm. In addition, we evaluated the in vitro developmental ability to the blastocyst stage of oocytes injected with freeze-dried sperm. Ram sperm was freeze-dried in basic medium and in this medium supplemented with 105 µM rosmarinic acid. The vials were stored for 1 year at 4 °C and at room temperature. Frozen sperm was used as control. After rehydration, sperm DNA damage was evaluated, observing that the percentage of spermatozoa with DNA damage decreased significantly in the presence of rosmarinic acid, without differences between the two storage temperatures. Moreover, no differences were observed between the freeze-dried group and the frozen-thawed group in terms of blastocyst formation rate. We proved for the first time that ovine spermatozoa can be lyophilized effectively, stored at room temperature for long term, reconstituted and further injected into oocytes with initial embryo development.
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7
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Patrick J, Comizzoli P, Elliott G. Dry Preservation of Spermatozoa: Considerations for Different Species. Biopreserv Biobank 2017; 15:158-168. [PMID: 28398834 PMCID: PMC5397208 DOI: 10.1089/bio.2016.0087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The current gold standard for sperm preservation is storage at cryogenic temperatures. Dry preservation is an attractive alternative, eliminating the need for ultralow temperatures, reducing storage maintenance costs, and providing logistical flexibility for shipping. Many seeds and anhydrobiotic organisms are able to survive extended periods in a dry state through the accumulation of intracellular sugars and other osmolytes and are capable of returning to normal physiology postrehydration. Using techniques inspired by nature's adaptations, attempts have been made to dehydrate and dry preserve spermatozoa from a variety of species. Most of the anhydrous preservation research performed to date has focused on mouse spermatozoa, with only a small number of studies in nonrodent mammalian species. There is a significant difference between sperm function in rodent and nonrodent mammalian species with respect to centrosomal inheritance. Studies focused on reproductive technologies have demonstrated that in nonrodent species, the centrosome must be preserved to maintain sperm function as the spermatozoon centrosome contributes the dominant nucleating seed, consisting of the proximal centriole surrounded by pericentriolar components, onto which the oocyte's centrosomal material is assembled. Preservation techniques used for mouse sperm may therefore not necessarily be applicable to nonrodent spermatozoa. The range of technologies used to dehydrate sperm and the effect of processing and storage conditions on fertilization and embryogenesis using dried sperm are reviewed in the context of reproductive physiology and cellular morphology in different species.
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Affiliation(s)
- Jennifer Patrick
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, North Carolina
| | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia
| | - Gloria Elliott
- Department of Mechanical Engineering and Engineering Science, University of North Carolina at Charlotte, Charlotte, North Carolina
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8
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Olaciregui M, Gil L. Freeze‐dried spermatozoa: A future tool? Reprod Domest Anim 2016; 52 Suppl 2:248-254. [DOI: 10.1111/rda.12838] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M Olaciregui
- Obstetric and Reproduction Area Universidad de Zaragoza Zaragoza Spain
| | - L Gil
- Obstetric and Reproduction Area Universidad de Zaragoza Zaragoza Spain
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9
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Gil L, Olaciregui M, Luño V, Malo C, González N, Martínez F. Current Status of Freeze-Drying Technology to Preserve Domestic Animals Sperm. Reprod Domest Anim 2014; 49 Suppl 4:72-81. [DOI: 10.1111/rda.12396] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 07/14/2014] [Indexed: 11/28/2022]
Affiliation(s)
- L Gil
- Obstetric and Reproduction Area; Universidad de Zaragoza; Zaragoza Spain
| | - M Olaciregui
- Obstetric and Reproduction Area; Universidad de Zaragoza; Zaragoza Spain
| | - V Luño
- Obstetric and Reproduction Area; Universidad de Zaragoza; Zaragoza Spain
| | - C Malo
- Obstetric and Reproduction Area; Universidad de Zaragoza; Zaragoza Spain
| | - N González
- Obstetric and Reproduction Area; Universidad de Zaragoza; Zaragoza Spain
| | - F Martínez
- Obstetric and Reproduction Area; Universidad de Zaragoza; Zaragoza Spain
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10
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Adverse effect of cake collapse on the functional integrity of freeze-dried bull spermatozoa. Cryobiology 2014; 68:354-60. [DOI: 10.1016/j.cryobiol.2014.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/27/2014] [Accepted: 04/08/2014] [Indexed: 11/17/2022]
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Graves-Herring JE, Wildt DE, Comizzoli P. Retention of structure and function of the cat germinal vesicle after air-drying and storage at suprazero temperature. Biol Reprod 2013; 88:139. [PMID: 23575153 DOI: 10.1095/biolreprod.113.108472] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The study explored a novel approach for preserving the maternal genome without the entire oocyte by air-drying the cat germinal vesicle (GV) in the presence of the disaccharide trehalose. Specifically, we examined GV structure and function after desiccation, storage at 4 °C (up to 32 wk), and rehydration including the ability to resume meiosis after injection into a fresh, conspecific cytoplast. In experiment 1, DNA integrity was similar to fresh controls after 1 and 4 wk storage in the presence of trehalose, but was more fragmented at later time points (especially after 32 wk). Nuclear envelope integrity was sustained in >90% of oocytes stored for 0, 4, or 16 wk regardless of protective treatment. In experiment 2, compacted, air-dried GVs were stored for 2 or 4 wk, rehydrated, and injected into fresh cytoplasts. After culture for 24 h in vitro, up to 73% of oocytes reconstructed with desiccated GVs preserved in trehalose resumed meiosis compared to 30% of those dried in the absence of the disaccharide. At each storage time point, trehalose presence during air-drying was advantageous for resumption of meiosis, with >20% of oocytes completing nuclear maturation to metaphase II. This demonstrates a potential for preserving the female genome using the GV alone and for multiple weeks after desiccation. Trehalose enhanced the process by retaining the ability of a dried and rehydrated GV to resume communication with the surrounding cytoplasm of the recipient oocyte to permit reaching metaphase II and likely sustain subsequent embryo development.
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Affiliation(s)
- Jennifer E Graves-Herring
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC 20013-7012, USA
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12
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Choi YH, Varner DD, Love CC, Hartman DL, Hinrichs K. Production of live foals via intracytoplasmic injection of lyophilized sperm and sperm extract in the horse. Reproduction 2011; 142:529-38. [DOI: 10.1530/rep-11-0145] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Work with lyophilized sperm helps delineate the factors required for successful fertilization. We investigated the use of lyophilized sperm in equine embryo production. In Experiment 1, sperm DNA fragmentation index was not affected by three freeze/thaw or lyophilization cycles. In Experiment 2, oocytes injected with lyophilized sperm or with sperm from a treatment in which lyophilized sperm were suspended in sperm cytoplasmic extract (SE) yielded blastocyst development rates of 0 and 28% respectively (P<0.05). In Experiment 3, blastocyst development rate was 6–11% after injection of sperm lyophilized from fresh or frozen–thawed semen, suspended in SE. In Experiment 4, sperm lyophilized 3.5 months or 1 week previously, suspended in SE, yielded similar blastocyst rates (6 and 3% respectively). Rates of normal pregnancy after transfer were 7/10 and 5/7 for embryos from control and lyophilized sperm treatments respectively. Three pregnancies from the lyophilized sperm treatments were not terminated, resulting in two healthy foals. Parentage testing determined that one foal originated from the lyophilized sperm; the other was the offspring of the stallion providing the sperm extract. Further testing indicated that two of five additional embryos in the lyophilized sperm treatment originated from the stallion providing the sperm extract. We conclude that both lyophilized stallion sperm and stallion sperm processed by multiple unprotected freeze–thaw cycles (as for sperm extract) can support production of viable foals. To the best of our knowledge, this is the first report on production of live offspring by fertilization with lyophilized sperm in a non-laboratory animal species.
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Kawase Y, Suzuki H. A study on freeze-drying as a method of preserving mouse sperm. J Reprod Dev 2011; 57:176-82. [PMID: 21551975 DOI: 10.1262/jrd.10-199e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This review describes the study of freeze-dried mouse sperm for practical application in preserving and transporting genetic resources. Freeze-dried sperm can be used to preserve and transport genetic resources; however, there still remain many areas which need to be studied. In particular, it is essential to assure long-term preservation over several decades or centuries. Recently, the theory of accelerated degradation kinetics to freeze-dried mouse sperm has been applied, and found that long-term preservation by conventional methods requires temperatures lower than -80 C. When the relationship between the pressure at primary drying and the preservation potential of freeze-dried mouse sperm was examined, a pressure of 0.37 mbar at primary drying significantly improved the developmental rate to the blastocyst stage. In addition, it has been shown that freeze-dried sperm stored at -80 C with and without transportation can retain their ability to generate viable offspring after storage for up to 2 years. Sperm chromatin structure assay (SCSA) was applied to mouse sperm freeze-dried under several conditions and compared the results with the embryonic developmental rates of freeze-dried sperm after intracytoplasmic sperm injection (ICSI) and with comet assay results. Furthermore, SCSA might be useful for estimation of developmental potential of fertilized eggs derived from ICSI using freeze-dried sperm in mice.
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Affiliation(s)
- Yosuke Kawase
- Chugai Research Institute for Medical Science, Inc., Gotemba, Japan
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14
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Kusakabe H. Chromosomal integrity and DNA damage in freeze-dried spermatozoa. Reprod Med Biol 2011; 10:199-210. [PMID: 29699095 DOI: 10.1007/s12522-011-0092-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Accepted: 05/12/2011] [Indexed: 11/24/2022] Open
Abstract
Freeze-drying technology may one day be used to preserve mammalian spermatozoa indefinitely without cryopreservation. Freeze-dried mouse spermatozoa stored below 4°C for up to 1 year have maintained the ability to fertilize oocytes and support normal development. The maximum storage period for spermatozoa increases at lower storage temperatures. Freeze-drying, per se, may reduce the integrity of chromosomes in freeze-dried mouse spermatozoa, but induction of chromosomal damage is suppressed if spermatozoa are incubated with divalent cation chelating agents prior to freeze-drying. Nevertheless, chromosomal damage does accumulate in spermatozoa stored at temperatures above 4°C. Currently, no established methods or strategies can prevent or reduce damage accumulation, and damage accumulation during storage is a serious obstacle to advances in freeze-drying technology. Chromosomal integrity of freeze-dried human spermatozoa have roughly background levels of chromosomal damage after storage at 4°C for 1 month, but whether these spermatozoa can produce healthy newborns is unknown. The safety of using freeze-dried human spermatozoa must be evaluated based on the risks of heritable chromosome and DNA damage that accumulates during storage.
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Affiliation(s)
- Hirokazu Kusakabe
- Department of Biological Sciences Asahikawa Medical University 2-1-1-1 Midorigaoka-higashi 078-8510 Asahikawa Japan
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HARA H, ABDALLA H, MORITA H, KUWAYAMA M, HIRABAYASHI M, HOCHI S. Procedure for Bovine ICSI, not Sperm Freeze-drying, Impairs the Function of the Microtubule-organizing Center. J Reprod Dev 2011; 57:428-32. [DOI: 10.1262/jrd.10-167n] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Hiromasa HARA
- Graduate School of Science and Technology, Shinshu University
| | - Hany ABDALLA
- Graduate School of Science and Technology, Shinshu University
- Faculty of Veterinary Medicine, Zagazig University
| | | | | | - Masumi HIRABAYASHI
- National Institute for Physiological Sciences
- The Graduate University for Advanced Studies
| | - Shinichi HOCHI
- Graduate School of Science and Technology, Shinshu University
- Faculty of Textile Science and Technology, Shinshu University
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HOCHI S, ABDALLA H, HARA H, HIRABAYASHI M. Challenging Endeavour for Preservation of Freeze-Dried Mammalian Spermatozoa. J Reprod Dev 2011; 57:557-63. [DOI: 10.1262/jrd.11-061o] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Shinichi HOCHI
- Graduate School of Science and Technology, Shinshu University, Nagano 386-8567, Japan
| | - Hany ABDALLA
- Graduate School of Science and Technology, Shinshu University, Nagano 386-8567, Japan
- Faculty of Veterinary Medicine, Zagazig University, Sharkia 44519, Egypt
| | - Hiromasa HARA
- Graduate School of Science and Technology, Shinshu University, Nagano 386-8567, Japan
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Kusakabe H, Tateno H. Shortening of alkaline DNA unwinding time does not interfere with detecting DNA damage to mouse and human spermatozoa in the comet assay. Asian J Androl 2010; 13:172-4. [PMID: 21057514 DOI: 10.1038/aja.2010.105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The comet assay was performed on mouse and human spermatozoa to examine the effect of alkaline DNA unwinding time. The spermatozoa were treated in vitro with the DNA-damaging agents, methyl methanesulfonate (MMS) or hydrogen peroxide (H₂O₂), and then embedded in agarose gel on glass slides. The slides were immersed in alkaline solution (> pH 13) for 1, 5, 10 and 20 min, and then subjected to the electrophoresis under neutral conditions. In mouse spermatozoa, comet tails seen in solvent controls became brighter and longer as the alkaline DNA unwinding time increased. However, in the MMS-treated mouse spermatozoa, a smaller difference in the damage from that in the solvent control was seen with time within a dose. DNA damage induced by H₂O₂ could also be detected accurately after alkali treatment for 1-20 min. In human spermatozoa, DNA damage induced by MMS and H₂O₂ could be detected in a dose-dependent manner after alkali treatment for 1 min. The ability of the comet assay to detect DNA damage was not adversely affected by the short period (1 min) of the alkaline DNA unwinding time.
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Affiliation(s)
- Hirokazu Kusakabe
- Department of Biological Sciences, Asahikawa Medical University, Asahikawa 078-8510, Japan.
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Evaluation of DNA fragmentation of freeze-dried mouse sperm using a modified sperm chromatin structure assay. Theriogenology 2009; 72:1047-53. [DOI: 10.1016/j.theriogenology.2009.06.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Revised: 06/16/2009] [Accepted: 06/17/2009] [Indexed: 11/20/2022]
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Pronuclear formation of freeze-dried canine spermatozoa microinjected into mouse oocytes. J Assist Reprod Genet 2009; 26:531-6. [PMID: 19856094 DOI: 10.1007/s10815-009-9358-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2009] [Accepted: 10/08/2009] [Indexed: 10/20/2022] Open
Abstract
PURPOSE The aim of the present study was to investigate the fertilizing capacity of fresh, frozen-thawed and freeze-dried canine spermatozoa. METHODS After canine spermatozoa were injected into mouse oocytes, the rates of oocyte activation, male pronuclear formation and chromosomal aberrations were investigated. RESULTS The rates of oocyte activation were comparable (90.6-100%), no matter the sperm type injected. The percentage of male pronuclear formation was higher (P < 0.001) in the freeze-dried spermatozoa (92.3%) than the fresh (61.5%) and frozen-thawed (69.2%) spermatozoa. However, the chromosomal damage in the oocytes injected with freeze-dried spermatozoa was higher (72.9%: P < 0.001) than with fresh (26.9%) and frozen-thawed (21.4%) spermatozoa. CONCLUSIONS These data indicate using mouse oocytes that freeze-dried canine spermatozoa may potentially fertilize canine oocytes although chromosomal damage is frequently generated.
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Abstract
Although the derivation of mice by intracytoplasmic sperm injection (ICSI) using freeze-dried sperm has been demonstrated previously, a comprehensive analysis of their viability, health, and fertility has not. The purpose of the present study was to determine the extent to which ICSI using freeze-dried sperm stored at 4 degrees C for 1-2 months from mice on either an inbred (C57BL/6J) or hybrid (B6D2F1/J) genetic background results in genomic instability and/or phenotypic abnormality in mice and two generations of their progeny. Fertilization rates (number of 2-cells per injected oocytes) using ICSI of fresh and freeze-dried sperm were similar within and between mouse strains, although fewer freeze-dried sperm-derived embryos than fresh sperm-derived embryos developed to blastocysts in vitro (C57BL/6J and B6D2F1/J) and liveborn pups in vivo (B6D2F1/J only). Nevertheless, once born, mice derived by ICSI using freeze-dried sperm in both mouse strains were healthy and reproductively sound. No major differences in litter size, weaning rate, and sex ratio were noted in the two generations of progeny (F2 and F3) of ICSI-derived offspring using freeze-dried sperm compared with that in the natural mating (control) group. Further, there was no evidence that either ICSI or freeze drying induced genomic instability, as determined by microsatellite analysis of the derived mice and subsequent generations when compared with both parental genotypes, nor were there differences in the number or types of pathological changes in any of the three generations of progeny. We conclude that viable, healthy and genomically stable mice can be derived by ICSI using freeze-dried mouse sperm stored in the refrigerator for at least 2 months. Further, because freeze drying is a simpler and more economical technique compared with embryo and sperm cryopreservation, the results of this study justify additional research to continue to develop and enhance the technique for the preservation, storage, and sharing of genetically altered mice.
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Abdalla H, Hirabayashi M, Hochi S. The ability of freeze-dried bull spermatozoa to induce calcium oscillations and resumption of meiosis. Theriogenology 2009; 71:543-52. [DOI: 10.1016/j.theriogenology.2008.08.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2008] [Revised: 08/06/2008] [Accepted: 08/18/2008] [Indexed: 11/27/2022]
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ABDALLA H, HIRABAYASHI M, HOCHI S. Demethylation Dynamics of the Paternal Genome in Pronuclear-Stage Bovine Zygotes Produced by In Vitro Fertilization and Ooplasmic Injection of Freeze-Thawed or Freeze-Dried Spermatozoa. J Reprod Dev 2009; 55:433-9. [DOI: 10.1262/jrd.20229] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Hany ABDALLA
- Interdisciplinary Graduate School of Science and Technology, Shinshu University
| | - Masumi HIRABAYASHI
- National Institute for Physiological Sciences
- The Graduate University of Advanced Studies
| | - Shinichi HOCHI
- Interdisciplinary Graduate School of Science and Technology, Shinshu University
- Faculty of Textile Science and Technology, Shinshu University
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23
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Kikuchi K, Kashiwazaki N, Nagai T, Nakai M, Somfai T, Noguchi J, Kaneko H. Selected aspects of advanced porcine reproductive technology. Reprod Domest Anim 2008; 43 Suppl 2:401-6. [PMID: 18638153 DOI: 10.1111/j.1439-0531.2008.01191.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
In vitro fertilization (IVF) of in vitro matured (IVM) oocytes in pigs has become the most popular method of studying gametogenesis and embryogenesis in this species. Furthermore, because of recent advances in in vitro culture (IVC) of IVM-IVF embryos, in vitro production (IVP) of embryos now enables us to generate viable embryos as successfully as for in vivo-derived embryos and with less cost and in less time. These technologies contribute not only to developments in reproductive physiology and agriculture but also to the conservation of porcine genetic resources and the production of cloned or genetically modified pigs. However, in IVP, there still remains the problem of abnormal ploidy, which is caused by performing procedures under non-physiological conditions. In recent years, unique technologies such as intracytoplasmic sperm injection (ICSI) or xenografting of gonadal tissue into immunodeficient experimental animals have been developed to help conserve gamete resources. These technologies combined with IVP are expected to be useful for the conservation of gametes from important genetic resources. Here, we discuss the developmental ability and normality of porcine IVP embryos and also the utilization of ICSI and xenografting in advancing biotechnology in pigs.
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Affiliation(s)
- K Kikuchi
- Division of Animal Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan.
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24
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Hochi S, Watanabe K, Kato M, Hirabayashi M. Live rats resulting from injection of oocytes with spermatozoa freeze-dried and stored for one year. Mol Reprod Dev 2008; 75:890-4. [PMID: 17926349 DOI: 10.1002/mrd.20825] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study was designed to examine whether rat spermatozoa after freeze-drying and 1-year storage can participate in full-term development following intracytoplasmic sperm injection (ICSI). Cauda epididymal spermatozoa from Crlj:Wistar rats were frozen in liquid nitrogen (LN(2)), first dried for 14 hr at 0.37 hPa and then for 3 hr at 0.001 hPa. The dried spermatozoa were stored for 1 year in a desiccator at +25 degrees C, or in a refrigerator at +4 degrees C, or in LN(2) at -196 degrees C. Controls consisted of sperm that had only been frozen and stored in LN(2). After being stored, spermatozoa were sonicated to dissociate the sperm tail and were injected into oocytes from superovulated Slc:SD rats. The respective fertilization rates of oocytes injected with frozen sperm, or with freeze-dried sperm stored at +25, +4, and -196 degrees C were 79%, 75%, 70%, and 73%. However, the corresponding cleavage rates of injected oocytes were 63%, 1%, 38%, and 36%. After transfer of >80 zygotes of each group into recipients, the respective percentages of full-term normal offspring resulting from frozen sperm or from freeze-dried sperm stored at +25, +4, and -196 degrees C were 36%, 0%, 7%, and 14%. These results demonstrate that the storage temperature significantly influenced the likelihood of term development of rats produced by injection of oocytes with freeze-dried spermatozoa. Chromosomal analysis of the rat spermatozoa in the ICSI oocytes indicated that chromosomal aberration in freeze-dried spermatozoa stored at +25 degrees C (100%) occurred more frequently than in frozen control spermatozoa (41%) and freeze-dried spermatozoa stored at -196 degrees C (35%), and the frequency of chromosomal aberrations in freeze-dried spermatozoa stored at +4 degrees C (65%) was the intermediate. In conclusion, rat spermatozoa freeze-dried and stored at +4 degrees C for 1 year are capable of participating in full-term development after ICSI.
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Affiliation(s)
- Shinichi Hochi
- Faculty of Textile Science and Technology, Shinshu University, Ueda, Nagano, Japan.
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25
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Kawase Y, Tachibe T, Jishage KI, Suzuki H. Transportation of freeze-dried mouse spermatozoa under different preservation conditions. J Reprod Dev 2007; 53:1169-74. [PMID: 17693699 DOI: 10.1262/jrd.19037] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Freeze-dried mouse spermatozoa can be used for normal embryonic development after injection into oocytes, thus indicating that freeze-drying is a useful method for the storage and transportation of genetic materials from animals. We recently reported that storage of freeze-dried mouse spermatozoa requires maintenance at temperatures lower than -80 C for long-term preservation and a pressure of 0.37 mbar at primary drying and that these conditions significantly improve the developmental rate to the blastocyst stage. In this study, we examined the influence of transportation and preservation conditions on freeze-dried spermatozoa. Freeze-dried spermatozoa stored for 2 or 2.5 years at 4 or -80 C were transported round trip overland between Shizuoka and Hokkaido prefectures in Japan or by air between Japan and Belgium. The freeze-drying conditions consisted of primary drying at pressures of 0.04, 0.37 and 1.03 mbar and secondary drying at a pressure of 0.001 mbar. Embryos (2-cell stage) from freeze-dried spermatozoa dried at 0.04 mbar and stored at 4 C for 2 years with and without overland transportation did not develop to term. The development rates of embryos from spermatozoa stored at -80 C for up to 2 years and transported overland, by air and without transportation were 8, 1 and 28%, respectively. The development rates of embryos from spermatozoa without transportation were significantly higher than with transportation (P<0.05). These data indicate that freeze-dried spermatozoa stored at -80 C with and without transportation can retain their ability to generate viable offspring after storage for up to 2 years. However, there are limitations to be considered in the transportation of freeze-dried spermatozoa at ambient temperature.
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Affiliation(s)
- Yosuke Kawase
- Chugai Research Institute for Medical Science, Shizuoka, Japan
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