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Fuentes F, Contreras MJ, Arroyo-Salvo C, Cabrera P P, Silva M, Merino O, Arias ME, Felmer R. Effect of exogenous sperm capacitation inducers on stallion sperm. Theriogenology 2024; 226:29-38. [PMID: 38824691 DOI: 10.1016/j.theriogenology.2024.05.042] [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: 12/12/2023] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/04/2024]
Abstract
Although under appropriate laboratory conditions, sperm from different mammalian species can be capacitated in vitro, the optimal conditions for sperm capacitation in the stallion have been elusive. This study evaluated the effect of different capacitating inducers in Whitten and Tyrode media and assessed their impact on capacitation-related factors. Stallion sperm were incubated with different combinations of capacitating inducers at 38.5 °C in an air atmosphere. Sperm quality variables such as motility, mitochondrial membrane potential, and lipid peroxidation were assessed. Membrane fluidity and intracellular calcium levels were evaluated as early markers of capacitation, while tyrosine phosphorylation events and the sperm's ability to perform acrosomal exocytosis were used as late capacitation markers. Finally, these sperm were evaluated using a heterologous zona pellucida binding assay. The findings confirm that capacitating conditions evaluated increase intracellular calcium levels and membrane fluidity in both media. Similarly, including 2 or 3 inducers in both media increased tyrosine phosphorylation levels and acrosomal exocytosis after exposure to progesterone, confirming that stallion sperm incubated in these conditions shows cellular and molecular changes consistent with sperm capacitation. Furthermore, the zona pellucida binding assay confirmed the binding capacity of sperm incubated in capacitation conditions, a key step for stallion in vitro fertilization success. Further studies are needed to evaluate the effect of these conditions on in vitro fertilization in the horse.
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Affiliation(s)
- Fernanda Fuentes
- Laboratory of Reproduction, Center of Reproductive Biotechnology (CEBIOR-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Doctoral Program in Applied Cellular and Molecular Biology, Universidad de La Frontera, Temuco, Chile
| | - Maria Jose Contreras
- Laboratory of Reproduction, Center of Reproductive Biotechnology (CEBIOR-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Camila Arroyo-Salvo
- Laboratory of Reproduction, Center of Reproductive Biotechnology (CEBIOR-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Paulina Cabrera P
- Laboratory of Reproduction, Center of Reproductive Biotechnology (CEBIOR-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Mauricio Silva
- Department of Veterinary Sciences and Public Health, Universidad Catolica de Temuco, Temuco, Chile
| | - Osvaldo Merino
- Department of Basic Sciences, Faculty of Medicine. Universidad de La Frontera, Temuco, Chile
| | - Maria Elena Arias
- Laboratory of Reproduction, Center of Reproductive Biotechnology (CEBIOR-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Department of Agricultural Production, Faculty of Agriculture and Environmental Sciences, Universidad de La Frontera, Temuco, Chile
| | - Ricardo Felmer
- Laboratory of Reproduction, Center of Reproductive Biotechnology (CEBIOR-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Department of Agricultural Sciences and Natural Resources, Faculty of Agriculture and Environmental Sciences, Universidad de La Frontera, Temuco, Chile.
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Zhu Z, Li W, Yang Q, Zhao H, Zhang W, Adetunji AO, Hoque SAM, Kou X, Min L. Pyrroloquinoline Quinone Improves Ram Sperm Quality through Its Antioxidative Ability during Storage at 4 °C. Antioxidants (Basel) 2024; 13:104. [PMID: 38247528 PMCID: PMC10812569 DOI: 10.3390/antiox13010104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/25/2023] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
Sperm motility is an important factor in the migration of sperm from the uterus to the oviduct. During sperm preservation in vitro, sperm generates excessive ROS that damages its function. This study aims to investigate whether the addition of pyrroloquinoline quinone (PQQ) to the diluted medium could improve chilled ram sperm quality, and then elucidates the mechanism. Ram semen was diluted with Tris-citric acid-glucose (TCG) medium containing different doses of PQQ (0 nM, 10 nM, 100 nM, 1000 nM, 10,000 nM), and stored at 4 °C. Sperm motility patterns, plasma membrane integrity, acrosome integrity, mitochondrial membrane potential, reactive oxygen species (ROS) levels, malondialdehyde (MDA) levels, superoxide dismutase (SOD) activity, and ATP levels were measured after preservation. Furthermore, the expressions of NADH dehydrogenase 1 (MT-ND1) and NADH dehydrogenase 6 (MT-ND6) in sperm were also detected by western blotting. In addition, sperm capacitation and the ability of sperm to bind to the zona pellucina were also evaluated. It was observed that the addition of PQQ significantly (p < 0.05) improved ram sperm motility, membrane integrity, and acrosome integrity during preservation. The percentage of sperm with high mitochondrial membrane potential in the PQQ treatment group was much higher than that in the control. In addition, supplementation of PQQ also decreased the sperm MDA and ROS levels, while increasing ATP levels. Interestingly, the levels of MT-ND1 and MT-ND6 protein in sperm treated with PQQ were also higher than that of the control. Furthermore, the addition of 100 nM PQQ to the medium decreased ROS damage in MT-ND1 and MT-ND6 proteins. The addition of 100 nM PQQ significantly (p < 0.05) increased protein tyrosine phosphorylation in ram sperm after induced capacitation. Furthermore, the value of the sperm-zona pellucida binding capacity in the 100 nM PQQ treatment group was also much higher than that of the control. Overall, during chilled ram- sperm preservation, PQQ protected ram sperm quality by quenching the ROS levels to reduce ROS damage and maintain sperm mitochondrial function, and preserved the sperm's high ability of fertilization.
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Affiliation(s)
- Zhendong Zhu
- College of Animal Science and Technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China; (Z.Z.)
| | - Wenjia Li
- College of Animal Science and Technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China; (Z.Z.)
| | - Qitai Yang
- College of Animal Science and Technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China; (Z.Z.)
| | - Haolong Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China; (Z.Z.)
| | - Weijing Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China; (Z.Z.)
| | - Adedeji O. Adetunji
- Department of Agriculture, University of Arkansas at Pine Bluff, Pine Bluff, AR 71601, USA
| | - S. A. Masudul Hoque
- Department of Animal Breeding and Genetics, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Xin Kou
- Hongde Livestock Farm, Yingli Town, Weifang 261000, China
| | - Lingjiang Min
- College of Animal Science and Technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China; (Z.Z.)
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Egyptien S, Deleuze S, Ledeck J, Ponthier J. Sperm Quality Assessment in Stallions: How to Choose Relevant Assays to Answer Clinical Questions. Animals (Basel) 2023; 13:3123. [PMID: 37835729 PMCID: PMC10571789 DOI: 10.3390/ani13193123] [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: 08/31/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Stallion sperm analysis is indicated for infertility diagnosis, pre-sale expertise, production of fresh or frozen doses, and frozen straw quality control. Various collection methods are described, and numerous assays can be performed on semen. Determining an approach for each of these cases is challenging. This review aims to discuss how to obtain relevant clinical results, answering stallion owners' concerns. Semen can be collected with an artificial vagina on a phantom or a mare, by electro-ejaculation under anesthesia, or after pharmacological induction. The collection method influences the semen volume and concentration, while the total sperm number depends on the testicular production and collection frequency. In the seminal plasma, acidity, pro-oxidant activity, and some enzymes have repercussions for the semen quality and its conservation. Moreover, non-sperm cells of seminal plasma may impact semen conservation. Motility analysis remains a core parameter, as it is associated with fresh or frozen dose fertility. Computer-assisted motility analyzers have improved repeatability, but the reproducibility between laboratories depends on the settings that are used. Morphology analysis showing spermatozoa defects is useful to understand production and maturation abnormalities. Staining of the spermatozoa is used to evaluate viability, but recent advances in flow cytometry and in fluorochromes enable an evaluation of multiple intracellular parameters. Spermatozoa protein expression already has clinical applications, for example, as a fertility and freezing ability predictor. At present, stallion semen analysis ranges from macroscopic evaluation to assessing spermatozoa proteins. However, clinically, all these data may not be relevant, and the lack of standardization may complicate their interpretation.
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Affiliation(s)
| | | | | | - Jérôme Ponthier
- Equine Theriogenology, Equine Clinical Sciences Department, FARAH Comparative Veterinary Medicine, Liège University, B-4000 Liège, Belgium; (S.E.); (S.D.); (J.L.)
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Contreras MJ, Arias ME, Silva M, Cabrera P, Felmer R. Effect of cholestanol and cholesterol-loaded cyclodextrin on stallion sperm function and capacitation post-cryopreservation. Theriogenology 2022; 189:1-10. [PMID: 35714521 DOI: 10.1016/j.theriogenology.2022.06.005] [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: 11/12/2021] [Revised: 05/06/2022] [Accepted: 06/06/2022] [Indexed: 10/18/2022]
Abstract
Cryopreservation of stallion semen is less efficient than other species such as bovine. This is mainly because of the greater susceptibility of stallion sperm to the freezing damage that generates oxidative stress and plasma membrane injury, resulting in DNA fragmentation and cell death. These data suggest the need to develop new strategies of sperm cryopreservation that can improve the efficiency of this technique in stallions by reducing or preventing membrane damage and cell death. The present study aimed to evaluate the effect of adding membrane stabilizers to the freezing medium and assess the quality and in vitro capacitation of stallion sperm after thawing. Semen samples from three stallions frozen with membrane stabilizers (cholesterol-loaded cyclodextrin and cholestanol-loaded cyclodextrin) were evaluated in two experiments: i) sperm quality and functional analysis after thawing, and ii) sperm quality and functional analysis after 4 h of post-thaw incubation in capacitating conditions. Plasma membrane integrity, mitochondrial membrane potential, membrane lipid disorder, intracellular Ca2+, tyrosine phosphorylation, acrosome reaction, DNA damage, sperm motility, and binding to the zona pellucida were assessed. The results showed that cholesterol-loaded cyclodextrin was the stabilizer that most efficiently reduced the membrane disruption and post-thaw cell damage. In addition, this stabilizer made it possible to obtain in vitro capacitated sperm showing higher plasma membrane integrity, mitochondrial membrane potential, sperm motility, binding to the zona pellucida and better response to in vitro capacitating conditions.
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Affiliation(s)
- María José Contreras
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile; Doctoral Program in Applied Cell and Molecular Biology, Universidad de La Frontera, Temuco, Chile
| | - María Elena Arias
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Agricultural Production, Faculty of Agriculture and Forestry Sciences, Universidad de La Frontera, Temuco, Chile
| | - Mauricio Silva
- Department of Veterinary Sciences and Public Health, Universidad Catolica de Temuco, Temuco, Chile
| | - Paulina Cabrera
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile; Doctoral Program in Applied Cell and Molecular Biology, Universidad de La Frontera, Temuco, Chile
| | - Ricardo Felmer
- Laboratory of Reproduction, Centre of Reproductive Biotechnology (CEBIOR-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Agricultural Sciences and Natural Resources, Faculty of Agriculture and Forestry Sciences, Universidad de La Frontera, Temuco, Chile.
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5
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Morris LH, Maclellan LJ. Update on advanced semen-processing technologies and their application for in vitro embryo production in horses. Reprod Fertil Dev 2020; 31:1771-1777. [PMID: 31640845 DOI: 10.1071/rd19301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 08/29/2019] [Indexed: 12/29/2022] Open
Abstract
The increased commercialisation of intracytoplasmic sperm injection (ICSI) in horses creates more opportunities to incorporate advanced reproductive technologies, such as sex-sorted, refrozen and lyophilised spermatozoa, into a breeding program. This paper reviews the status of these semen-handling technologies in light of their use in equine ICSI programs. Pregnancies have been achieved from each of these advanced technologies when combined with ICSI in horses, but refinements in the semen-handling processes underpinning these technologies are currently being explored to produce more reliable and practical improvements in the results from equine ICSI.
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Affiliation(s)
- Lee H Morris
- EquiBreed NZ, 399 Parklands Road, Te Awamutu 3879, New Zealand; and Corresponding author.
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6
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Dominguez EM, Moreno-Irusta A, Rodriguez MB, Salamone DF, de Arruda RP, Losinno L, Giojalas LC. Chemotactic selection of frozen-thawed stallion sperm improves sperm quality and heterologous binding to oocytes. Anim Reprod Sci 2020; 221:106582. [PMID: 32889407 DOI: 10.1016/j.anireprosci.2020.106582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 08/15/2020] [Accepted: 08/17/2020] [Indexed: 10/23/2022]
Abstract
The successful use of assisted reproduction techniques (ART) depends in part on the sperm physiological status. Several sperm selection procedures have been applied to improve quality of sperm population when using the ART. There has previously been development of a Sperm Selection Assay (SSA) for humans which is based on the attraction of capacitated sperm by chemotaxis towards progesterone (P), resulting in an enriched sperm population with an optimal physiological status similar to capacitated spermatozoa, with these cells having very little DNA fragmentation and optimal concentrations of reactive oxygen species (ROS). In the present study, the aim was to adapt the SSA for frozen-thawed stallion semen samples and evaluate the functional status of those sperm selected using the SSA procedure, and to determine whether this enriched sperm population has a greater capacity to bind to the zona pellucida of cattle oocytes. There were experimental conditions developed to conduct the SSA with stallion sperm. Using these conditions, the indexes of induced acrosome reaction, protein tyrosine phosphorylation, mitochondrial membrane potential, mitochondrial and cytoplasmic reactive oxygen species, and number of sperm bound to the zona pellucida of cattle were greater when the sperm population was selected using the SSA. Consistently, the DNA fragmentation and phospholipase C zeta indexes were less for the selected sperm. In conclusion, stallion sperm selected using chemotaxis utilizing the SSA provides a sperm population of greater quality, which when used may improve the outcomes with use of the ART.
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Affiliation(s)
- Esteban Mauricio Dominguez
- Universidad Nacional de Córdoba (UNC), Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Biología Celular y Molecular, Córdoba, Argentina; Consejo de Investigaciones Científicas y Técnicas (CONICET), Instituto de Investigaciones Biológicas y Tecnológicas, Córdoba, Argentina
| | - Ayelen Moreno-Irusta
- Universidad Nacional de Córdoba (UNC), Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Biología Celular y Molecular, Córdoba, Argentina; Consejo de Investigaciones Científicas y Técnicas (CONICET), Instituto de Investigaciones Biológicas y Tecnológicas, Córdoba, Argentina
| | - María Belén Rodriguez
- Laboratorio de Biotecnología Animal, FAUBA/INPA- CONICET, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Daniel F Salamone
- Laboratorio de Biotecnología Animal, FAUBA/INPA- CONICET, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Rubens Paes de Arruda
- Laboratório de Biotecnologia do Sêmen e Andrologia - LBSA, Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Ciência Animal, Universidade de São Paulo (USP), Pirassununga, SP, Brazil
| | - Luis Losinno
- Universidad Nacional de Rio Cuarto (UNRC), Facultad de Agronomía y Veterinaria, Catedra de Producción Equina I y II, Rio Cuarto, Córdoba, Argentina; Universidad Nacional de Rio Cuarto (UNRC), Facultad de Agronomía y Veterinaria, Laboratorio de Producción Equina, Rio Cuarto, Córdoba, Argentina
| | - Laura Cecilia Giojalas
- Universidad Nacional de Córdoba (UNC), Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Biología Celular y Molecular, Córdoba, Argentina; Consejo de Investigaciones Científicas y Técnicas (CONICET), Instituto de Investigaciones Biológicas y Tecnológicas, Córdoba, Argentina.
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de Almeida Monteiro Melo Ferraz M, Nagashima JB, Noonan MJ, Crosier AE, Songsasen N. Oviductal Extracellular Vesicles Improve Post-Thaw Sperm Function in Red Wolves and Cheetahs. Int J Mol Sci 2020; 21:E3733. [PMID: 32466321 PMCID: PMC7279450 DOI: 10.3390/ijms21103733] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/15/2020] [Accepted: 05/20/2020] [Indexed: 02/06/2023] Open
Abstract
Artificial insemination (AI) is a valuable tool for ex situ wildlife conservation, allowing the re-infusion and dissemination of genetic material, even after death of the donor. However, the application of AI to species conservation is still limited, due mainly to the poor survival of cryopreserved sperm. Recent work demonstrated that oviductal extracellular vesicles (oEVs) improved cat sperm motility and reduced premature acrosomal exocytosis. Here, we build on these findings by describing the protein content of dog and cat oEVs and investigating whether the incubation of cryopreserved red wolf and cheetah sperm with oEVs during thawing improves sperm function. Both red wolf and cheetah sperm thawed with dog and cat oEVs, respectively, had more intact acrosomes than the non-EV controls. Moreover, red wolf sperm thawed in the presence of dog oEVs better maintained sperm motility over time (>15%) though such an improvement was not observed in cheetah sperm. Our work demonstrates that dog and cat oEVs carry proteins important for sperm function and improve post-thaw motility and/or acrosome integrity of red wolf and cheetah sperm in vitro. The findings show how oEVs can be a valuable tool for improving the success of AI with cryopreserved sperm in threatened species.
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Affiliation(s)
| | - Jennifer Beth Nagashima
- Smithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, VA 22630, USA; (J.B.N.); (M.J.N.); (A.E.C.); (N.S.)
| | - Michael James Noonan
- Smithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, VA 22630, USA; (J.B.N.); (M.J.N.); (A.E.C.); (N.S.)
- The Irving K. Barber School of Arts and Sciences, The University of British Columbia, Okanagan Campus, 1177 Research Road, Kelowna, BC V1V 1V7, Canada
| | - Adrienne E. Crosier
- Smithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, VA 22630, USA; (J.B.N.); (M.J.N.); (A.E.C.); (N.S.)
| | - Nucharin Songsasen
- Smithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, VA 22630, USA; (J.B.N.); (M.J.N.); (A.E.C.); (N.S.)
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8
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Moros-Nicolás C, Douet C, Reigner F, Goudet G. Effect of cumulus cell removal and sperm pre-incubation with progesterone on in vitro fertilization of equine gametes in the presence of oviductal fluid or cells. Reprod Domest Anim 2019; 54:1095-1103. [PMID: 31145487 DOI: 10.1111/rda.13479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 05/24/2019] [Indexed: 11/29/2022]
Abstract
In spite of many attempts to establish an in vitro fertilization (IVF) technique in the equine, no efficient conventional IVF technique is available. The presence of oviductal fluid or oviductal cells during IVF helps to improve embryo production in vitro but is not sufficient to reach high fertilization rates. Thus, our aim was to perform equine IVF either after sperm pre-incubation with oviductal fluid or in the presence of oviductal cells, and to evaluate the effect of cumulus removal from the oocyte or sperm pre-incubation with progesterone. In experiments 1 and 2, IVF was performed in the presence of porcine oviduct epithelial cells. The removal of cumulus cells from equine oocytes after in vitro maturation tended to increase the percentage of fertilization when fresh sperm was used (1/33 vs. 4/31, p > 0.05) but had no effect when frozen sperm was used (1/32 vs. 1/32). Equine sperm pre-incubation with progesterone did not significantly influence the fertilization rate when fresh or frozen sperm was used (2/14 vs. 2/18 for fresh, 1/29 vs. 1/25 for frozen). In experiments 3 and 4, IVF was performed after pre-incubation of sperm with porcine oviductal fluid. The removal of cumulus cells tended to increase the percentage of fertilization when fresh sperm was used (1/24 vs. 3/26, p > 0.05). Sperm pre-incubation with progesterone did not significantly influence the fertilization rate when fresh or frozen sperm was used (2/39 vs. 2/36 for fresh, 2/37 vs. 1/46 for frozen), but two 3-4 cell stage zygotes were obtained with fresh sperm pre-incubated with progesterone. This is an encouraging result for the setting up of an efficient IVF procedure in equine.
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Affiliation(s)
| | - Cécile Douet
- PRC, INRA, CNRS, IFCE, Université de Tours, Nouzilly, France
| | | | - Ghylène Goudet
- PRC, INRA, CNRS, IFCE, Université de Tours, Nouzilly, France
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9
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Sublethal sperm freezing damage: Manifestations and solutions. Theriogenology 2018; 118:172-181. [DOI: 10.1016/j.theriogenology.2018.06.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/28/2018] [Accepted: 06/10/2018] [Indexed: 01/30/2023]
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10
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Al-Essawe EM, Wallgren M, Wulf M, Aurich C, Macías-García B, Sjunnesson Y, Morrell JM. Seminal plasma influences the fertilizing potential of cryopreserved stallion sperm. Theriogenology 2018; 115:99-107. [PMID: 29747159 DOI: 10.1016/j.theriogenology.2018.04.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 02/06/2023]
Abstract
Seminal plasma (SP) contains proteins that may influence cryosurvival and prevent capacitation-like changes due to freezing and thawing. The objective of this study was to investigate the effect of adding pooled SP from "good" (GF) or "bad" (BF) freezer stallions on sperm cells' fertilizing ability. "Good freezers" refers to stallions that usually produce ejaculates which can withstand cryopreservation, whilst "bad freezer" stallions produce ejaculates which cannot tolerate the freezing process. A heterologous zona binding assay with in vitro matured bovine oocytes was used to assess the binding ability of equine sperm cells as a possible alternative to artificial insemination trials. The effect of adding SP i) prior to cryopreservation; ii) after thawing of sperm cells selected by single layer centrifugation (SLC); iii) to capacitation medium, was evaluated. Adding SP from GF stallions prior to cryopreservation reduced the mean number of sperm cells bound to the zona pellucida (ZP) compared to control (P = 0.0003), SP-free sperm cells and group received SP from BF stallions (P ≤ 0.0001 for both). After thawing SLC-selected sperm cells treated with 5% SP showed a decrease in binding ability compared with SP-free sperm cells (P ≤ 0.0001). The binding affinity of sperm cells was higher in the group treated with SP from GF than with SP from BF stallions (P ≤ 0.05). Prolonged exposure to SP impaired the ability of stallion sperm cells to undergo capacitation and bind to ZP, regardless of the source of SP (P ≤ 0.0001). The response of equine sperm cells to SP is influenced by the ability of the sperm cells to withstand cryopreservation and is affected by the timing of exposure and the origin of SP. Customization of the protocol for individual stallions is recommended to optimize the effect.
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Affiliation(s)
- Essraa M Al-Essawe
- Swedish University of Agricultural Sciences, Clinical Sciences, Uppsala, Sweden; Al-Nahrain University - High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, Clinical Reproductive Physiology, Baghdad, Iraq.
| | - Margareta Wallgren
- Swedish University of Agricultural Sciences, Clinical Sciences, Uppsala, Sweden.
| | - Manuela Wulf
- Graf Lehndorff Institute for Equine Sciences, Vetmeduni Vienna, Austria, and Neustadt (Dosse), Germany.
| | - Christine Aurich
- Artificial Insemination and Embryo Transfer, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria.
| | - Beatriz Macías-García
- Jesús Usón Minimally Invasive Surgery Centre (CCMIJU), Assisted Reproduction Unit, Cáceres, Spain.
| | - Ylva Sjunnesson
- Swedish University of Agricultural Sciences, Clinical Sciences, Uppsala, Sweden.
| | - Jane M Morrell
- Swedish University of Agricultural Sciences, Clinical Sciences, Uppsala, Sweden.
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11
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Cysteine protects rabbit spermatozoa against reactive oxygen species-induced damages. PLoS One 2017; 12:e0181110. [PMID: 28700739 PMCID: PMC5507327 DOI: 10.1371/journal.pone.0181110] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 06/25/2017] [Indexed: 11/24/2022] Open
Abstract
The process of cryopreservation results in over-production of reactive oxygen species, which is extremely detrimental to spermatozoa. The aim of this study was to investigate whether addition of cysteine to freezing extender would facilitate the cryosurvival of rabbit spermatozoa, and if so, how cysteine protects spermatozoa from cryodamages. Freshly ejaculated semen was diluted with Tris-citrate-glucose extender supplemented with different concentrations of cysteine. The motility, intact acrosomes, membrane integrity, mitochondrial potentials, 8-hydroxyguanosine level and sperm-zona pellucida binding capacity were examined. Furthermore, glutathione peroxidase (GPx) activity, glutathione content (GSH), and level of reactive oxygen species (ROS) and hydrogen peroxide of spermatozoa were analyzed. The values of motility, intact acrosomes, membrane integrity, mitochondrial potentials and sperm-zona pellucida binding capacity of the frozen-thawed spermatozoa in the treatment of cysteine were significantly higher than those of the control. Addition of cysteine to extenders improved the GPx activity and GSH content of spermatozoa, while lowered the ROS, DNA oxidative alterations and lipid peroxidation level, which makes spermatozoa avoid ROS to attack DNA, the plasma membrane and mitochondria. In conclusion, cysteine protects spermatozoa against ROS-induced damages during cryopreservation and post-thaw incubation. Addition of cysteine is recommended to facilitate the improvement of semen preservation for the rabbit breeding industry.
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12
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Estimating the binding ability of collared peccary ( Pecari tajacu Linnaeus, 1758) sperm using heterologous substrates. Theriogenology 2017; 92:57-62. [DOI: 10.1016/j.theriogenology.2017.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/19/2016] [Accepted: 01/04/2017] [Indexed: 10/20/2022]
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13
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Wei YF, Chen FL, Tang SS, Mao AG, Li LG, Cheng LG, Chen C, Li FX, Wang B, Xu T, Zhang YJ, Li J, Wan JS. Birth of puppies of predetermined sex after artificial insemination with a low number of sex-sorted, frozen-thawed spermatozoa in field conditions. Anim Sci J 2017; 88:1232-1238. [PMID: 28078817 DOI: 10.1111/asj.12763] [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] [Received: 05/06/2016] [Revised: 10/17/2016] [Accepted: 10/28/2016] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate fertility and sex ratios after artificial insemination in dogs under field conditions. Semen was cryopreserved as unsorted (control) or was separated into X- and Y-chromosome-bearing sperm using a cell sorter. Sixty female dogs were inseminated with frozen-thawed spermatozoa of 100 × 106 unsorted (a dose in practice) and 4 × 106 sorted (X and Y group, respectively). A total of 20 dogs became pregnant and 126 puppies were born from the three groups. The percentage of parturition was similar for the X (5/20; 25.0%) and Y (4/20; 20.0%) group (P > 0.05), but lower than controls (11/20; 55.0%) (P < 0.05). Ultimately 28 out of the 32 puppies produced from X group were female (87.5%) and 19/22 (86.4%) puppies of Y group were male. In contrast, sex ratio (51.4% to 48.6%) in the control was significantly different from the X, Y group (P < 0.05). However, male and female puppies in the control had similar birth weights and weaning weights to those from the X and Y groups. This preliminary information indicated that normal puppies of predicted sex can be produced with low numbers of sorted cryopreserved dog spermatozoa at a farm level, making sperm-sexing technology potentially applicable for elite breeding units.
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Affiliation(s)
- Yun-Fang Wei
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Fang-Liang Chen
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Shu-Sheng Tang
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Ai-Guo Mao
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Li-Guang Li
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Lu-Guang Cheng
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Chao Chen
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Fei-Xiang Li
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Bin Wang
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Tao Xu
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Yue-Jun Zhang
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Jing Li
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
| | - Jiu-Sheng Wan
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan, China
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14
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de Vasconcelos Franco JS, Faheem M, Chaveiro A, Moreira da Silva F. Effects of α-tocopherol and freezing rates on the quality and heterologous in vitro fertilization capacity of stallion sperm after cryopreservation. Theriogenology 2016; 86:957-962. [PMID: 27125690 DOI: 10.1016/j.theriogenology.2016.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 03/12/2016] [Accepted: 03/12/2016] [Indexed: 10/22/2022]
Abstract
The effects of supplementation of α-tocopherol and different freezing rates (FRs) on the ability of stallion sperm to fertilize bovine oocytes with intact zona pellucida were investigated, in an attempt to develop a model to assess cryopreserved sperm function. Semen was obtained from four purebred Lusitano stallions (n = 4). Each ejaculate was subjected to cryopreservation with a commercial extender (Ghent, Minitub Iberia, Spain), without any supplementation (control) or supplemented with 2-mM α-tocopherol. The semen was exposed to two different FRs between 5 °C and -15 °C: slow (5 °C/min) and moderate (10 °C/min). After thawing, the viability (SYBR®-14 and propidium iodide [PI]), mitochondrial membrane potential (JC-1, 5,5',6,6'-tetrachloro-1,1',3,3'tetraethylbenzimidazolyl carbocyanine iodine) and membrane lipid peroxidation (C11-BODIPY(581/591)) of each sample were determined by flow cytometry. Moreover, the heterologous IVF rate was measured to evaluate the fertilization capacity of postthaw semen in the four different treatments. For both extenders, the viability was higher for spermatozoa cooled slowly (39.40 ± 2.17 vs. 17.59 ± 2.25-control; 31.96 ± 2.19 vs. 11.46 ± 1.34-Tocopherol; P < 0.05). The α-tocopherol extender improved (P < 0.05) postthaw lipid peroxidation (10.28 ± 0.70 vs. 15.40 ± 0.95-slow FR; 10.14 ± 0.40 vs. 13.48 ± 0.34-moderate FR); however, it did not improve viability and mitochondrial membrane potential. Regarding the IVF rate, in the moderate FR, α-tocopherol supplementation reported a higher percentage of IVF (20.50 ± 2.11; P < 0.05), comparing with the control (14.00 ± 1.84). Regarding the slow FR, no significance differences were observed for percentage of IVF between the two extenders and the FRs. However, it seems that the α-tocopherol supplementation improved the IVF rate. In conclusion, this research reported that bovine oocytes intact zona pellucida can be used to evaluate the quality of postthaw stallion semen and α-tocopherol supplementation in the stallion freezing extender might exert a protective effect against oxidative damage during heterologous IVF.
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Affiliation(s)
- J S de Vasconcelos Franco
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal.
| | - M Faheem
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal; Animal Production Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - A Chaveiro
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal
| | - F Moreira da Silva
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, CITA-A, Angra do Heroísmo, Portugal
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15
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Plaza Dávila M, Bucci D, Galeati G, Peña FJ, Mari G, Giaretta E, Tamanini C, Spinaci M. Epigallocatechin-3-Gallate (EGCG) Reduces Rotenone Effect on Stallion Sperm-Zona Pellucida Heterologous Binding. Reprod Domest Anim 2015; 50:1011-6. [DOI: 10.1111/rda.12628] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 09/13/2015] [Indexed: 12/17/2022]
Affiliation(s)
- M Plaza Dávila
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
| | - D Bucci
- Department of Veterinary Medical Sciences (DIMEVET); University of Bologna; Bologna Italy
| | - G Galeati
- Department of Veterinary Medical Sciences (DIMEVET); University of Bologna; Bologna Italy
| | - FJ Peña
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
| | - G Mari
- Department of Veterinary Medical Sciences (DIMEVET); University of Bologna; Bologna Italy
- AUB INFA; University of Bologna; Bologna Italy
| | - E Giaretta
- Department of Veterinary Medical Sciences (DIMEVET); University of Bologna; Bologna Italy
| | - C Tamanini
- Department of Veterinary Medical Sciences (DIMEVET); University of Bologna; Bologna Italy
| | - M Spinaci
- Department of Veterinary Medical Sciences (DIMEVET); University of Bologna; Bologna Italy
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16
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Sánchez-Calabuig MJ, de la Fuente J, Laguna-Barraza R, Beltrán-Breña P, Martínez-Nevado E, Johnston SD, Rizos D, Gutiérrez-Adán A, Pérez-Gutiérrez JF. Heterologous murine and bovine IVF using bottlenose dolphin (Tursiops truncatus) spermatozoa. Theriogenology 2015; 84:983-94. [PMID: 26149074 DOI: 10.1016/j.theriogenology.2015.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 06/04/2015] [Accepted: 06/04/2015] [Indexed: 11/29/2022]
Abstract
Assisted reproductive technologies are of great importance for increasing the genetic diversity in captive animals. The use of bovine or murine oocytes in heterologous IVF provides advantages compared to homologous IVF in nondomestic animals, such as the accessibility to oocytes and the availability of well-developed in vitro maturation systems. The aim of this study was to determine the heterologous IVF parameters using cryopreserved dolphin spermatozoa and zona-intact bovine or murine oocytes and to examine the nuclear chromatin status of the dolphin spermatozoa. All the processes involved in the fertilization including embryo cleavage were observed by confocal microscopy and hybrid embryo formation was confirmed by polymerase chain reaction. Heterologous bovine IVF showed no polyspermy, lower percentages of pronuclear formation, and a lower cleavage rate compared to homologous IVF group (34.8% vs. 89.3%). Heterologous murine IVF showed a lower cleavage rate than homologous IVF (9.6% vs. 77.1%). With respect to dolphin sperm chromatin, it was more stable, i.e. more resistant to EDTA-SDS decondensation than the bovine sperm chromatin. This study revealed the stability of the dolphin sperm chromatin and the ability of the dolphin spermatozoa to penetrate zona-intact bovine and murine oocytes, leading to hybrid embryo formation.
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Affiliation(s)
- M J Sánchez-Calabuig
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - J de la Fuente
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - R Laguna-Barraza
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - P Beltrán-Breña
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | | | - S D Johnston
- Wildlife Science Unit, School of Agriculture and Food Science, University of Queensland, Gatton, Australia
| | - D Rizos
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - A Gutiérrez-Adán
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - J F Pérez-Gutiérrez
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain.
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17
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Luna C, Colás C, Casao A, Serrano E, Domingo J, Pérez-Pé R, Cebrián-Pérez J, Muiño-Blanco T. Ram seminal plasma proteins contribute to sperm capacitation and modulate sperm–zona pellucida interaction. Theriogenology 2015; 83:670-8. [DOI: 10.1016/j.theriogenology.2014.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/30/2014] [Accepted: 10/31/2014] [Indexed: 01/07/2023]
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18
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Balao da Silva CM, Ortega Ferrusola C, Gallardo Bolaños JM, Plaza Dávila M, Martín-Muñoz P, Morrell JM, Rodriguez Martínez H, Peña FJ. Effect of Overnight Staining on the Quality of Flow Cytometric Sorted Stallion Sperm: Comparison with Tradtitional Protocols. Reprod Domest Anim 2014; 49:1021-7. [DOI: 10.1111/rda.12431] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 08/29/2014] [Indexed: 01/31/2023]
Affiliation(s)
- CM Balao da Silva
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
| | - C Ortega Ferrusola
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
| | - JM Gallardo Bolaños
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
| | - M Plaza Dávila
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
| | - P Martín-Muñoz
- Division of Reproduction; Faculty of Veterinary Medicine and Animal Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - JM Morrell
- Division of Reproduction; Faculty of Veterinary Medicine and Animal Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - H Rodriguez Martínez
- Department of Clinical and Experimental Medicine; Faculty of Health Sciences; Linköping University; Linköping Sweden
| | - FJ Peña
- Laboratory of Equine Reproduction and Equine Spermatology; Veterinary Teaching Hospital; University of Extremadura; Cáceres Spain
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19
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Validation of a heterologous fertilization assay and comparison of fertilization rates of equine oocytes using in vitro fertilization, perivitelline, and intracytoplasmic sperm injections. Theriogenology 2014; 82:274-82. [DOI: 10.1016/j.theriogenology.2014.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 04/07/2014] [Accepted: 04/08/2014] [Indexed: 01/28/2023]
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20
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Evaluation of sperm subpopulation structure in relation to in vitro sperm–oocyte interaction of frozen-thawed semen from Holstein bulls. Theriogenology 2014; 81:1067-72. [DOI: 10.1016/j.theriogenology.2014.01.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/13/2013] [Accepted: 01/20/2014] [Indexed: 11/17/2022]
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21
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First field results on the use of stallion sex-sorted semen in a large-scale embryo transfer program. Theriogenology 2014; 81:520-5. [DOI: 10.1016/j.theriogenology.2013.10.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 10/23/2013] [Accepted: 10/23/2013] [Indexed: 11/17/2022]
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22
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Bromfield EG, Aitken RJ, Gibb Z, Lambourne SR, Nixon B. Capacitation in the presence of methyl-β-cyclodextrin results in enhanced zona pellucida-binding ability of stallion spermatozoa. Reproduction 2014; 147:153-66. [DOI: 10.1530/rep-13-0393] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
While IVF has been widely successful in many domesticated species, the development of a robust IVF system for the horse remains an elusive and highly valued goal. A major impediment to the development of equine IVF is the fact that optimised conditions for the capacitation of equine spermatozoa are yet to be developed. Conversely, it is known that stallion spermatozoa are particularly susceptible to damage arising as a consequence of capacitation-like changes induced prematurely in response to semen handling and transport conditions. To address these limitations, this study sought to develop an effective system to both suppress and promote thein vitrocapacitation of stallion spermatozoa. Our data indicated that the latter could be achieved in a bicarbonate-rich medium supplemented with a phosphodiesterase inhibitor, a cyclic AMP analogue, and methyl-β-cyclodextrin, an efficient cholesterol-withdrawing agent. The populations of spermatozoa generated under these conditions displayed a number of hallmarks of capacitation, including elevated levels of tyrosine phosphorylation, a reorganisation of the plasma membrane leading to lipid raft coalescence in the peri-acrosomal region of the sperm head, and a dramatic increase in their ability to interact with heterologous bovine zona pellucida (ZP) and undergo agonist-induced acrosomal exocytosis. Furthermore, this functional transformation was effectively suppressed in media devoid of bicarbonate. Collectively, these results highlight the importance of efficient cholesterol removal in priming stallion spermatozoa for ZP bindingin vitro.
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23
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Balao da Silva CM, Spinaci M, Bucci D, Giaretta E, Peña FJ, Mari G, Galeati G. Effect of sex sorting on stallion spermatozoa: Heterologous oocyte binding, tyrosine phosphorylation and acrosome reaction assay. Anim Reprod Sci 2013; 141:68-74. [PMID: 23953198 DOI: 10.1016/j.anireprosci.2013.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/15/2013] [Accepted: 07/17/2013] [Indexed: 11/17/2022]
Abstract
The interest on sex sorting by flow cytometry on the equine industry has been increasing over the years. In this work, three different tests were performed in order to evaluate the membrane status of sorted stallion spermatozoa: assessment of binding ability to porcine oocytes, evaluation of acrosome integrity after stimulation with A23187, and detection of tyrosine phosphorylation. These evaluations were made after incubation for 0h, 1.5h and 3h in a capacitating medium. Sorted stallion spermatozoa attached similarly to the porcine oocytes, when compared with control samples. Sorted spermatozoa were more prone to undergo acrosome reaction (P<0.05), at the beginning and after 1.5h and 3h of incubation, and also had higher tyrosine phosphorylation of the tail (P<0.001), only at the beginning of the incubation period. Apparently sex sorted stallion spermatozoa are in a more advanced status of membrane destabilization, which could be associated with capacitation, although similar binding ability to porcine oocytes is maintained.
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Affiliation(s)
- C M Balao da Silva
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain.
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24
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Bathgate R, Mace N, Heasman K, Evans G, Maxwell WMC, de Graaf SP. Birth of kids after artificial insemination with sex-sorted, frozen-thawed goat spermatozoa. Reprod Domest Anim 2013; 48:893-8. [PMID: 23701168 DOI: 10.1111/rda.12182] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 04/15/2013] [Indexed: 11/29/2022]
Abstract
Successful sex-sorting of goat spermatozoa and subsequent birth of pre-sexed kids have yet to be reported. As such, a series of experiments were conducted to develop protocols for sperm-sorting (using a modified flow cytometer, MoFlo SX(®) ) and cryopreservation of goat spermatozoa. Saanen goat spermatozoa (n = 2 males) were (i) collected into Salamon's or Tris catch media post-sorting and (ii) frozen in Tris-citrate-glucose media supplemented with 5, 10 or 20% egg yolk in (iii) 0.25 ml pellets on dry ice or 0.25 ml straws in a controlled-rate freezer. Post-sort and post-thaw sperm quality were assessed by motility (CASA), viability and acrosome integrity (PI/FITC-PNA). Sex-sorted goat spermatozoa frozen in pellets displayed significantly higher post-thaw motility and viability than spermatozoa frozen in straws. Catch media and differing egg yolk concentration had no effect on the sperm parameters tested. The in vitro and in vivo fertility of sex-sorted goat spermatozoa produced with this optimum protocol were then tested by means of a heterologous ova binding assay and intrauterine artificial insemination of Saanen goat does, respectively. Sex-sorted goat spermatozoa bound to sheep ova zona pellucidae in similar numbers (p > 0.05) to non-sorted goat spermatozoa, non-sorted ram spermatozoa and sex-sorted ram spermatozoa. Following intrauterine artificial insemination with sex-sorted spermatozoa, 38% (5/13) of does kidded with 83% (3/5) of kids being of the expected sex. Does inseminated with non-sorted spermatozoa achieved a 50% (3/6) kidding rate and a sex ratio of 3 : 1 (F : M). This study demonstrates for the first time that goat spermatozoa can be sex-sorted by flow cytometry, successfully frozen and used to produce pre-sexed kids.
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Affiliation(s)
- R Bathgate
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
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25
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Gibb Z, Morris L, Maxwell W, Grupen C. Dimethyl formamide improves the postthaw characteristics of sex-sorted and nonsorted stallion sperm. Theriogenology 2013; 79:1027-33. [DOI: 10.1016/j.theriogenology.2013.01.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 01/21/2013] [Accepted: 01/22/2013] [Indexed: 11/29/2022]
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26
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Gibb Z, Butler T, Morris L, Maxwell W, Grupen C. Quercetin improves the postthaw characteristics of cryopreserved sex-sorted and nonsorted stallion sperm. Theriogenology 2013; 79:1001-9. [DOI: 10.1016/j.theriogenology.2012.06.032] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 06/21/2012] [Accepted: 06/24/2012] [Indexed: 01/17/2023]
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27
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Balao da Silva CM, Ortega Ferrusola C, Morillo Rodriguez A, Gallardo Bolaños JM, Plaza Dávila M, Morrell JM, Rodriguez Martínez H, Tapia JA, Aparicio IM, Peña FJ. Sex sorting increases the permeability of the membrane of stallion spermatozoa. Anim Reprod Sci 2013; 138:241-51. [PMID: 23567220 DOI: 10.1016/j.anireprosci.2013.02.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 02/21/2013] [Accepted: 02/28/2013] [Indexed: 12/13/2022]
Abstract
At present, the only repeatable means of selecting the sex of offspring is the Beltsville semen sorting technology using flow cytometry (FC). This technology has reached commercial status in the bovine industry and substantial advances have occurred recently in swine and ovine species. In the equine species, however, the technology is not as well developed. To better understand the changes induced in stallion spermatozoa during the sorting procedure, pooled sperm samples were sorted: sperm motility and kinematics were assessed using computer assisted sperm analysis, sperm membrane integrity was assessed using the YoPro-1 assay, while plasmalemmal stability and lipid architecture were assessed using Merocyanine 540/SYTOX green and Annexin-V, respectively. Lipid peroxidation was also investigated with the probe Bodipy(581/591)-C11. All assays were performed shortly after collection, after incubation and after sex sorting using FC. In order to characterize potential molecular mechanisms implicated in sperm damage, an apoptosis protein antibody dot plot array analysis was performed before and after sorting. While the percentage of total motile sperm remained unchanged, sex sorting reduced the percentages of progressive motile spermatozoa and of rapid spermatozoa as well as curvilinear velocity (VCL). Sperm membranes responded to sorting with an increase in the percentage of YoPro-1 positive cells, suggesting the sorted spermatozoa had a reduced energy status that was confirmed by measuring intracellular ATP content.
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Affiliation(s)
- C M Balao da Silva
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital
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28
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Vieira L, Gadea J, García-Vázquez F, Avilés-López K, Matás C. Equine spermatozoa stored in the epididymis for up to 96h at 4°C can be successfully cryopreserved and maintain their fertilization capacity. Anim Reprod Sci 2013. [DOI: 10.1016/j.anireprosci.2012.10.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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The effect of sex preselection and cryopreservation on the function of epididymal and ejaculated stallion spermatozoa. J Equine Vet Sci 2012. [DOI: 10.1016/j.jevs.2012.05.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Gibb Z, Morris L, Maxwell W, Grupen C. Use of a defined diluent increases the sex-sorting efficiency of stallion sperm. Theriogenology 2011; 75:610-9. [DOI: 10.1016/j.theriogenology.2010.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 09/15/2010] [Accepted: 10/02/2010] [Indexed: 11/16/2022]
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