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de Mello F, Alonso DJ, de Faria NPVM, Marques VH, de Oliveira EF, de Mello PH, de Godoy LC, Moreira RG. Alterations in Gene Expression and the Fatty Acid Profile Impact but Do Not Compromise the In Vitro Maturation of Zebrafish ( Danio rerio) Stage III Ovarian Follicles after Cryopreservation. Animals (Basel) 2023; 13:3563. [PMID: 38003179 PMCID: PMC10668701 DOI: 10.3390/ani13223563] [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: 08/25/2023] [Revised: 10/18/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
The vitrification of ovarian follicles is a strategic tool that may contribute to advances in aquaculture and the conservation of many important species. Despite the difficulties inherent to the cryopreservation of oocytes, some successful protocols have been developed for different species, but little is known about the capacity of oocytes to develop after thawing. Therefore, the profiles of the reproductive pathway genes and fatty acid membrane composition during the initial stages of development were analyzed in fresh ovarian follicles and follicles after the vitrification process. There were differences in the expression of the hypothalamic-pituitary-gonad axis genes during the follicular development in the control group as well as in the vitrified group. Similarly, alterations in the composition of fatty acids were observed after vitrification. Despite this, many alterations were observed in the vitrified group; more than half of the stage III ovarian follicles were able to grow and mature in vitro. Therefore, the vitrification of ovarian follicles may impact them at molecular and membrane levels, but it does not compromise their capability for in vitro maturation, which indicates that the technique can be a strategic tool for aquaculture.
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Affiliation(s)
- Fernanda de Mello
- Department of Physiology, Bioscience Institute, University of Sao Paulo (IB/USP), 101 Matão Street, Travessa 14, Butantã District, São Paulo 05508-090, SP, Brazil; (D.J.A.); (N.P.V.M.d.F.); (V.H.M.); (R.G.M.)
| | - Daniel Jaen Alonso
- Department of Physiology, Bioscience Institute, University of Sao Paulo (IB/USP), 101 Matão Street, Travessa 14, Butantã District, São Paulo 05508-090, SP, Brazil; (D.J.A.); (N.P.V.M.d.F.); (V.H.M.); (R.G.M.)
| | - Natália Pires Vieira Morais de Faria
- Department of Physiology, Bioscience Institute, University of Sao Paulo (IB/USP), 101 Matão Street, Travessa 14, Butantã District, São Paulo 05508-090, SP, Brazil; (D.J.A.); (N.P.V.M.d.F.); (V.H.M.); (R.G.M.)
| | - Victor Hugo Marques
- Department of Physiology, Bioscience Institute, University of Sao Paulo (IB/USP), 101 Matão Street, Travessa 14, Butantã District, São Paulo 05508-090, SP, Brazil; (D.J.A.); (N.P.V.M.d.F.); (V.H.M.); (R.G.M.)
| | - Ethiene Fernandes de Oliveira
- Aquaculture Center, São Paulo State University “Julio de Mesquita Filho” (CAUNESP), Access Road Professor Paulo Donato Castellane, Vila Industrial District, Jaboticabal 14884-900, SP, Brazil;
| | - Paulo Henrique de Mello
- Beacon Development, King Abdullah University of Science and Technology, 2713, Jeddah 23955, Saudi Arabia;
| | - Leandro César de Godoy
- Department of Animal Science, Federal University of Rio Grande do Sul, 7712 Bento Gonçalves Avenue, Agronomia District, Porto Alegre 91540-000, RS, Brazil;
| | - Renata Guimaraes Moreira
- Department of Physiology, Bioscience Institute, University of Sao Paulo (IB/USP), 101 Matão Street, Travessa 14, Butantã District, São Paulo 05508-090, SP, Brazil; (D.J.A.); (N.P.V.M.d.F.); (V.H.M.); (R.G.M.)
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Fryc K, Nowak A, Kij-Mitka B, Kochan J, Bartlewski PM, Murawski M. Morphokinetic changes and apoptotic cell death in vitrified and non-vitrified in vitro-produced ovine embryos. Reprod Biol 2023; 23:100750. [PMID: 36857927 DOI: 10.1016/j.repbio.2023.100750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 03/02/2023]
Abstract
This article addresses morphokinetic changes and the extent of apoptosis in vitrified and non-vitrified in vitro-derived ovine blastocysts. Cumulus-oocyte complexes were collected after ovarian scarification obtain after slaughter and in vitro maturation was performed in TCM 199 medium supplemented with Earle's Salt, 10 % of FBS, and 5 µg/mL of LH/FSH at 38 °C for 24 h. After maturation, the oocytes were co-incubated with thawed ram semen (IVF) for 19 h.Embryo development was monitored with the aid of the Primo Vision Time-Lapse (TL) system. Twenty-five out of thirty-one ovine blastocysts that were vitrified using the Cryotop system at the early blastulation stage of development subsequently re-expanded. Both the vitrified (n = 25) and non-vitrified (control group: n = 28) blastocysts were examined for detection of apoptosis (TUNEL assay) and total blastomere counts at the time they attained the expanded blastocyst stage. Blastocyst formation occurred earlier in non-vitrified than in vitrified ovine embryos (147:49 ± 20:23 compared with 156:46 ± 19:24; hours:minutes post-insemination; mean ± SD; P < 0.05). The average number of blastocyst collapses was greater (2.45 ± 1.64 compared with 1.45 ± 1.64), but the number of weak contractions was less for vitrified than non-vitrified ovine blastocysts (P < 0.05). The mean number of blastomeres was greater (131.8 ± 38.6 compared with 91.5 ± 18.3; P < 0.05) while the number of TUNEL-positive cells (4.4 ± 1.6 compared with 6.3 ± 2.3) and apoptotic index (3.4 ± 1.2 % compared with 6.9 ± 2.6 %) were less (P < 0.05) in non-vitrified compared with vitrified blastocysts. Vitrification of ovine embryos was associated with a delayed blastocyst formation, greater numbers of apoptotic cells, significant reduction in the number of blastomeres, and higher/lower incidence of blastocyst collapse/weak contractions.
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Affiliation(s)
- Karolina Fryc
- Department of Animal Nutrition and Biotechnology, and Fisheries, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland.
| | - Agnieszka Nowak
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland
| | - Barbara Kij-Mitka
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland
| | - Joanna Kochan
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland
| | - Pawel M Bartlewski
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, 50 Stone Rd., Guelph, ON N1G 2W1, Canada
| | - Maciej Murawski
- Department of Animal Nutrition and Biotechnology, and Fisheries, University of Agriculture in Kraków, 24/28 Mickiewicza Ave., 30-059 Cracow, Poland
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Falchi L, Ledda S, Zedda MT. Embryo biotechnologies in sheep: Achievements and new improvements. Reprod Domest Anim 2022; 57 Suppl 5:22-33. [PMID: 35437835 PMCID: PMC9790389 DOI: 10.1111/rda.14127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/17/2022] [Indexed: 12/30/2022]
Abstract
To date, large-scale use of multiple ovulation and embryo transfer (MOET) programmes in ovine species is limited due to unpredictable results and high costs of hormonal stimulation and treatment. Therefore, even if considered reliable, they are not fully applicable in large-scale systems. More recently, the new prospects offered by in vitro embryo production (IVEP) through collection of oocytes post-mortem or by repeated ovum pick-up from live females suggested an alternative to MOET programmes and may be more extensively used, moving from the exclusive research in the laboratory to field application. The possibility to perform oocytes recovery from juvenile lambs to obtain embryos (JIVET) offers the great advantage to significantly reduce the generation interval, speeding the rate of genetic improvement. Although in the past decades several studies implemented novel protocols to enhance embryo production in sheep, the conditions of every single stage of IVEP can significantly affect embryo yield and successful transfer into the recipients. Moreover, the recent progresses on embryo production and freezing technologies might allow wider propagation of valuable genes in small ruminants populations and may be used for constitution of flocks without risks of disease. In addition, they can give a substantial contribution in preserving endangered breeds. The new era of gene editing might offer innovative perspectives in sheep breeding, but the application of such novel techniques implies involvement of specialized operators and is limited by relatively high costs for embryo manipulation and molecular biology analysis.
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Affiliation(s)
- Laura Falchi
- Sezione di Cl. Ostetrica e GinecologiaDipartimento di Medicina VeterinariaUniversità degli Studi di SassariSassariItaly
| | - Sergio Ledda
- Sezione di Cl. Ostetrica e GinecologiaDipartimento di Medicina VeterinariaUniversità degli Studi di SassariSassariItaly
| | - Maria T. Zedda
- Sezione di Cl. Ostetrica e GinecologiaDipartimento di Medicina VeterinariaUniversità degli Studi di SassariSassariItaly
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Ledda S, Kelly JM, Nieddu S, Bebbere D, Ariu F, Bogliolo L, Natan D, Arav A. Correction to: High in vitro survival rate of sheep in vitro produced blastocysts vitrified with a new method and device. J Anim Sci Biotechnol 2020; 10:98. [PMID: 31890202 PMCID: PMC6915873 DOI: 10.1186/s40104-019-0415-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Sergio Ledda
- 1Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Jen M Kelly
- 2South Australian Research and Development Institute, Turretfield Research Centre, 129 Holland Road, Rosedale, SA 5350 Australia
| | - Stefano Nieddu
- 1Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Daniela Bebbere
- 1Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Federica Ariu
- 1Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Luisa Bogliolo
- 1Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Dity Natan
- FertilSafe Ltd, 11 Haharash st, 7403118 Ness Ziona, Israel
| | - Amir Arav
- FertilSafe Ltd, 11 Haharash st, 7403118 Ness Ziona, Israel
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