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Ye LC, Chow SY, Chang SC, Kuo CH, Wang YL, Wei YJ, Lee GC, Liaw SH, Chen WM, Chen SC. Structural and Mutational Analyses of Trehalose Synthase from Deinococcus radiodurans Reveal the Interconversion of Maltose-Trehalose Mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:18649-18657. [PMID: 39109746 PMCID: PMC11342931 DOI: 10.1021/acs.jafc.4c03661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/22/2024]
Abstract
Trehalose synthase (TreS) catalyzes the reversible interconversion of maltose to trehalose, playing a vital role in trehalose production. Understanding the catalytic mechanism of TreS is crucial for optimizing the enzyme activity and enhancing its suitability for industrial applications. Here, we report the crystal structures of both the wild type and the E324D mutant of Deinococcus radiodurans trehalose synthase in complex with the trehalose analogue, validoxylamine A. By employing structure-guided mutagenesis, we identified N253, E320, and E324 as crucial residues within the +1 subsite for isomerase activity. Based on these complex structures, we propose the catalytic mechanism underlying the reversible interconversion of maltose to trehalose. These findings significantly advance our comprehension of the reaction mechanism of TreS.
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Affiliation(s)
- Li-Ci Ye
- Department
of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Sih-Yao Chow
- Department
of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - San-Chi Chang
- Department
of Agricultural Chemistry, National Taiwan
University, Taipei 10617, Taiwan
| | - Chia-Hung Kuo
- Department
of Seafood Science, National Kaohsiung University
of Science and Technology, No. 142, Haijhuan Rd, Kaohsiung, Nanzih District 81157, Taiwan
| | - Yung-Lin Wang
- Institute
of Biochemistry and Molecular Biology, National
Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Yong-Jun Wei
- Department
of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Guan-Chiun Lee
- Department
of Life Science, National Taiwan Normal
University, No. 162, Sec. 1, Heping East Road, Taipei 116, Taiwan
| | - Shwu-Huey Liaw
- Department
of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Wen-Ming Chen
- Department
of Seafood Science, National Kaohsiung University
of Science and Technology, No. 142, Haijhuan Rd, Kaohsiung, Nanzih District 81157, Taiwan
| | - Sheng-Chia Chen
- Department
of Seafood Science, National Kaohsiung University
of Science and Technology, No. 142, Haijhuan Rd, Kaohsiung, Nanzih District 81157, Taiwan
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2
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Alkali IM, Colombo M, De Iorio T, Piotrowska A, Rodak O, Kulus MJ, Niżański W, Dziegiel P, Luvoni GC. Vitrification of feline ovarian tissue: Comparison of protocols based on equilibration time and temperature. Theriogenology 2024; 224:163-173. [PMID: 38776704 DOI: 10.1016/j.theriogenology.2024.05.023] [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: 01/23/2024] [Revised: 05/17/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024]
Abstract
Global contraction of biodiversity pushed most members of Felidae into threatened or endangered list except the domestic cat (Felis catus) thence preferred as the best model for conservation studies. One of the emerging conservation strategies is vitrification of ovarian tissue which is field-friendly but not yet standardized. Thus, our main goal was to establish a suitable vitrification protocol for feline ovarian tissue in field condition. Feline ovarian tissue fragments were punched with biopsy punch (1.5 mm diameter) and divided into 4 groups. Group 1 was fresh control (Fr), while the other three were exposed to 3 vitrification protocols (VIT_CT, VIT_RT1 and VIT_RT2). VIT_CT involved two step equilibrations in solutions containing dimethyl sulfoxide (DMSO) and ethylene glycol (EG) for 10 min each at 4 °C. VIT_RT1 involved three step equilibration in solutions containing DMSO, EG, polyvinylpyrrolidone and sucrose for 14 min in total at room temperature, while in VIT_RT2 all conditions remained the same as in VIT_RT1 except equilibration timing which was reduced by half. After vitrification and warming, fragments were morphologically evaluated and then cultured for six days. Subsequently, follicular morphology, cellular proliferation (expression of Ki-67, MCM-7) and apoptosis (expression of caspase-3) were evaluated, and data obtained were analysed using generalised linear mixed model and chi square tests. Proportions of intact follicles were higher in Fr (P = 0.0001) and VIT_RT2 (P = 0.0383) in comparison to the other protocols both post warming and after the six-day culture. Generally, most follicles remained at primordial state which was confirmed by the low expression of Ki-67, MCM-7 markers. In conclusion, VIT_RT2 protocol, which has lower equilibration time at room temperature has proven superior thus recommended for vitrification of feline ovarian tissue.
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Affiliation(s)
- Isa Mohammed Alkali
- Dipartimento di Medicina Veterinaria e Scienze Animali, Università degli Studi di Milano, via dell'Università, 6, 26900, Lodi, Italy; Department of Theriogenology, University of Maiduguri, Maiduguri, Nigeria.
| | - Martina Colombo
- Dipartimento di Medicina Veterinaria e Scienze Animali, Università degli Studi di Milano, via dell'Università, 6, 26900, Lodi, Italy.
| | - Teresina De Iorio
- Dipartimento di Medicina Veterinaria e Scienze Animali, Università degli Studi di Milano, via dell'Università, 6, 26900, Lodi, Italy; Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria (CREA), Research Center "Zootechny and Aquaculture", Via Salaria, 31, 00015, Monterotondo, RM, Italy.
| | - Aleksandra Piotrowska
- Department of Histology and Embryology, Wrocław Medical University, ul. Chalubinskiego 6a, 50-368, Wrocław, Poland.
| | - Olga Rodak
- Department of Histology and Embryology, Wrocław Medical University, ul. Chalubinskiego 6a, 50-368, Wrocław, Poland.
| | - Michał Jerzy Kulus
- Division of Ultrastructural Research, Wroclaw Medical University, 50-368, Wrocław, Poland.
| | - Wojciech Niżański
- Department of Reproduction and Clinic for Farm Animals, Wrocław University of Environmental and Life Sciences, Grunwaldzki Square 49, 50-366, Wrocław, Poland.
| | - Piotr Dziegiel
- Department of Histology and Embryology, Wrocław Medical University, ul. Chalubinskiego 6a, 50-368, Wrocław, Poland.
| | - Gaia Cecilia Luvoni
- Dipartimento di Medicina Veterinaria e Scienze Animali, Università degli Studi di Milano, via dell'Università, 6, 26900, Lodi, Italy.
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Zhang X, Liu X, Liu XL, Wu DY, Zhou K, Yu ZS, Dou CL, Xu T, Yu M, Miao YL. Preserving Porcine Genetics: A Simple and Effective Method for On-Site Cryopreservation of Ear Tissue Using Direct Cover Vitrification. Int J Mol Sci 2023; 24:ijms24087469. [PMID: 37108632 PMCID: PMC10139005 DOI: 10.3390/ijms24087469] [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: 03/06/2023] [Revised: 04/14/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Cell cryopreservation is widely used for porcine genetic conservation; however, isolating and freezing primary cells in farms without adequate experimental equipment and environment poses a significant challenge. Therefore, it is necessary to establish a quick and simple method to freeze tissues on-site, which can be used for deriving primary fibroblasts when needed to achieve porcine genetic conservation. In this study, we explored a suitable approach for porcine ear tissue cryopreservation. The porcine ear tissues were cut into strips and frozen by direct cover vitrification (DCV) in the cryoprotectant solution with 15% EG, 15% DMSO and 0.1 M trehalose. Histological analysis and ultrastructural evaluation revealed that thawed tissues had normal tissue structure. More importantly, viable fibroblasts could be derived from these tissues frozen in liquid nitrogen for up to 6 months. Cells derived from thawed tissues did not show any cell apoptosis, had normal karyotypes and could be used for nuclear transfer. These results suggest that this quick and simple ear tissue cryopreservation method can be applied for porcine genetic conservation, especially in the face of a deadly emerging disease in pigs.
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Affiliation(s)
- Xia Zhang
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- National Demonstration Center for Experimental Veterinary Medicine Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Xin Liu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Xiao-Li Liu
- National Demonstration Center for Experimental Veterinary Medicine Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Dan-Ya Wu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Kai Zhou
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Zhi-Sheng Yu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Cheng-Li Dou
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Tian Xu
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Mei Yu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Yi-Liang Miao
- Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
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Ali Hassan H, Banchi P, Chayaa R, Pascottini OB, Maniscalco L, Iussich S, Smits K, Van Soom A. Feline ovarian tissue vitrification: The effect of fragment size and base medium on follicular viability and morphology. Theriogenology 2023; 198:12-18. [PMID: 36529107 DOI: 10.1016/j.theriogenology.2022.12.016] [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: 09/30/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
To achieve optimal vitrification, tissue structure and fragment size represent a challenge for obtaining sufficient cooling velocity. Theoretically, thin ovarian tissue fragments lead to higher surface contact, hence higher solute penetration. Another critical factor is the concentration of cryoprotectants (CPA): CPA toxicity may occur with high concentrations, and as such, this may induce local apoptosis. Therefore two experiments were conducted: In experiment I, we compared the effect of sucrose supplementation in vitrification solution along with ovarian fragments of different sizes on post-warming tissue viability and follicle architecture. Fragments of two different sizes, with a thickness and radius of 1.5 × 0.75 mm and 3 × 1.5 mm respectively were vitrified in vitrification solution without sucrose and with 0.5 M sucrose supplementation. Post-warming, fragments of ovarian tissue (fresh and vitrified) were evaluated for viability (Calcein AM/Propidium Iodide) and for morphology (hematoxylin-eosin). In experiment II, we aimed to reduce cryoprotectant toxicity by using lower CPA concentrations in combination with an optimized carrier medium (HypThermosol®; HTS). Ovarian tissue fragments were randomly allocated to five groups (A: fresh controls; B: vitrified in GLOBAL® TOTAL® LP w/HEPES with 15% ethylene glycol (EG) and 15% DMSO; C: vitrified in HTS with 5% EG and 5% DMSO; D: vitrified in HTS with 10% EG and 10% DMSO; E: vitrified in HTS with 15% EG and 15% DMSO). Fragments (fresh and vitrified) were evaluated for morphology (hematoxylin-eosin) and for apoptosis through the activity of caspase-3. Results showed that follicular morphology was affected by the size of the fragment; smaller sized fragments contained a greater proportion of intact follicles (53.8 ± 2.0%) compared to the larger fragments (40.3 ± 2.0%). Our results demonstrated that 1.5 × 0.75 mm sized pieces vitrified in a vitrification solution supplemented with 0.5 M sucrose had more intact follicles (54.8 ± 1.3%; P = 0.0002) after vitrification. In addition, HTS presented no additional protective effect as a base medium, neither for follicular morphology nor apoptotic rate.
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Affiliation(s)
- H Ali Hassan
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - P Banchi
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium; Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2-5, 10095, Grugliasco, Italy
| | - R Chayaa
- Faculty of Agronomy and Veterinary Medicine, Lebanese University, 2703, Beirut, Dekwaneh, Lebanon
| | - O B Pascottini
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - L Maniscalco
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2-5, 10095, Grugliasco, Italy; Faculty of Agronomy and Veterinary Medicine, Lebanese University, 2703, Beirut, Dekwaneh, Lebanon
| | - S Iussich
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2-5, 10095, Grugliasco, Italy; Faculty of Agronomy and Veterinary Medicine, Lebanese University, 2703, Beirut, Dekwaneh, Lebanon
| | - K Smits
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - A Van Soom
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
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5
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Yong KW, Wu K, Elliott JAW, Jomha NM. The effect of sucrose supplementation on chondrocyte viability in porcine articular cartilage following vitrification. Cryobiology 2022; 109:53-61. [PMID: 36155184 DOI: 10.1016/j.cryobiol.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/14/2022] [Accepted: 09/17/2022] [Indexed: 02/05/2023]
Abstract
Vitrification can extend the banking life of articular cartilage (AC) and improve osteochondral transplantation success. Current vitrification protocols require optimization to enable them to be implemented in clinical practice. Sucrose as a non-permeating cryoprotective agent (CPA) and clinical grade chondroitin sulfate (CS) and ascorbic acid (AA) as antioxidants were investigated for their ability to improve a current vitrification protocol for AC. The aim of this study was to assess the impact of sucrose and CS/AA supplementation on post-warming chondrocyte viability in vitrified AC. Porcine osteochondral dowels were randomly vitrified and warmed with one established protocol (Protocol 1) and seven modified protocols (Protocols 2-8) followed by chondrocyte viability assessment. Sucrose supplementation in both vitrification and warming media (Protocol 4) resulted in significantly higher (p = 0.018) post-warming chondrocyte viability compared to the protocol without sucrose (Protocol 1). There was no significant difference (p = 0.298) in terms of post-warming chondrocyte viability between sucrose-supplemented DMEM + CS solution (Protocol 4) and Unisol-CV (UCV) + CS (Protocol 6) solution. Clinical grade CS and AA contributed to similar post-warming chondrocyte viability to previous studies using research grade CS and AA, indicating their suitability for clinical use. The addition of an initial step (step 0) to reduce the initial concentration of CPAs to minimize osmotic effects did not enhance chondrocyte viability in the superficial layer of AC. In conclusion, sucrose-supplemented DMEM + clinical grade CS (Protocol 4) could be an ideal protocol to be investigated for future use in clinical applications involving vitrified AC.
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Affiliation(s)
- Kar Wey Yong
- Department of Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2B7, Canada
| | - Kezhou Wu
- Department of Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2B7, Canada
- Department of Orthopedic Surgery, First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada; Department of Laboratory Medicine and Pathology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2R7, Canada
| | - Nadr M Jomha
- Department of Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2B7, Canada
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Freitas-Ribeiro S, Reis RL, Pirraco RP. Long-term and short-term preservation strategies for tissue engineering and regenerative medicine products: state of the art and emerging trends. PNAS NEXUS 2022; 1:pgac212. [PMID: 36714838 PMCID: PMC9802477 DOI: 10.1093/pnasnexus/pgac212] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/09/2022] [Accepted: 09/28/2022] [Indexed: 02/01/2023]
Abstract
There is an ever-growing need of human tissues and organs for transplantation. However, the availability of such tissues and organs is insufficient by a large margin, which is a huge medical and societal problem. Tissue engineering and regenerative medicine (TERM) represent potential solutions to this issue and have therefore been attracting increased interest from researchers and clinicians alike. But the successful large-scale clinical deployment of TERM products critically depends on the development of efficient preservation methodologies. The existing preservation approaches such as slow freezing, vitrification, dry state preservation, and hypothermic and normothermic storage all have issues that somehow limit the biomedical applications of TERM products. In this review, the principles and application of these approaches will be summarized, highlighting their advantages and limitations in the context of TERM products preservation.
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Affiliation(s)
- Sara Freitas-Ribeiro
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal,ICVS/3B’s—PT Government Associate Laboratory, 4805-017 Barco GMR, Portugal
| | - Rui L Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal,ICVS/3B’s—PT Government Associate Laboratory, 4805-017 Barco GMR, Portugal
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Amelkina O, da Silva AM, Silva AR, Comizzoli P. Feline microRNAome in ovary and testis: Exploration of in-silico miRNA-mRNA networks involved in gonadal function and cellular stress response. Front Genet 2022; 13:1009220. [PMID: 36226169 PMCID: PMC9548565 DOI: 10.3389/fgene.2022.1009220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
The aim of the study was to perform the first in-depth analysis of miRNAs in ovarian and testicular tissues of the domestic cat, a critical biomedical model. Specifically, potential miRNA involvement was explored in gonadal function, testis development, and cellular stress response to preservation protocols. We performed miRNA-sequencing on 20 ovarian and 20 testicular samples from 15 cats, including different ages and tissue treatments. Using fresh tissues (n = 15), we confirmed gonadal expression of 183 miRNA precursors and discovered additional 52 novel feline candidate precursors. We integrated the mRNA data from our previous study on the same age and treatment groups to create in-silico miRNA-mRNA networks and their functional enrichment, which allows comprehensive exploration into possible miRNA functions in cat gonads. Clusters of miRNAs united by shared differentially expressed mRNA targets are potentially involved in testicular development and spermatogenesis. MicroRNAs could play a significant role in ovarian tissue response to stress from microwave-assisted dehydration, with smaller roles in cellular response to vitrification in both ovary and testis. This new list of miRNAs with potential function in cat gonads is a major step towards understanding the gonadal biology, as well as optimizing fertility preservation protocols.
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Affiliation(s)
- Olga Amelkina
- Smithsonian’s National Zoo and Conservation Biology Institute, Washington, DC, United States
| | - Andreia M. da Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid—UFERSA, Mossoró, Brazil
| | - Alexandre R. Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid—UFERSA, Mossoró, Brazil
| | - Pierre Comizzoli
- Smithsonian’s National Zoo and Conservation Biology Institute, Washington, DC, United States
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Bolton RL, Mooney A, Pettit MT, Bolton AE, Morgan L, Drake GJ, Appeltant R, Walker SL, Gillis JD, Hvilsom C. Resurrecting biodiversity: advanced assisted reproductive technologies and biobanking. REPRODUCTION AND FERTILITY 2022; 3:R121-R146. [PMID: 35928671 PMCID: PMC9346332 DOI: 10.1530/raf-22-0005] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 06/30/2022] [Indexed: 11/21/2022] Open
Abstract
Biodiversity is defined as the presence of a variety of living organisms on the Earth that is essential for human survival. However, anthropogenic activities are causing the sixth mass extinction, threatening even our own species. For many animals, dwindling numbers are becoming fragmented populations with low genetic diversity, threatening long-term species viability. With extinction rates 1000-10,000 times greater than natural, ex situ and in situ conservation programmes need additional support to save species. The indefinite storage of cryopreserved (-196°C) viable cells and tissues (cryobanking), followed by assisted or advanced assisted reproductive technology (ART: utilisation of oocytes and spermatozoa to generate offspring; aART: utilisation of somatic cell genetic material to generate offspring), may be the only hope for species' long-term survival. As such, cryobanking should be considered a necessity for all future conservation strategies. Following cryopreservation, ART/aART can be used to reinstate lost genetics back into a population, resurrecting biodiversity. However, for this to be successful, species-specific protocol optimisation and increased knowledge of basic biology for many taxa are required. Current ART/aART is primarily focused on mammalian taxa; however, this needs to be extended to all, including to some of the most endangered species: amphibians. Gamete, reproductive tissue and somatic cell cryobanking can fill the gap between losing genetic diversity today and future technological developments. This review explores species prioritisation for cryobanking and the successes and challenges of cryopreservation and multiple ARTs/aARTs. We here discuss the value of cryobanking before more species are lost and the potential of advanced reproductive technologies not only to halt but also to reverse biodiversity loss. Lay summary The world is undergoing its sixth mass extinction; however, unlike previous events, the latest is caused by human activities and is resulting in the largest loss of biodiversity (all living things on Earth) for 65 million years. With an extinction rate 1000-10,000-fold greater than natural, this catastrophic decline in biodiversity is threatening our own survival. As the number of individuals within a species declines, genetic diversity reduces, threatening their long-term existence. In this review, the authors summarise approaches to indefinitely preserve living cells and tissues at low temperatures (cryobanking) and the technologies required to resurrect biodiversity. In the future when appropriate techniques become available, these living samples can be thawed and used to reinstate genetic diversity and produce live young ones of endangered species, enabling their long-term survival. The successes and challenges of genome resource cryopreservation are discussed to enable a move towards a future of stable biodiversity.
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Affiliation(s)
- Rhiannon L Bolton
- Nature’s SAFE, Chapel Field Stud, Ash Lane, Whitchurch, Shropshire, UK
| | | | - Matt T Pettit
- Nature’s SAFE, Chapel Field Stud, Ash Lane, Whitchurch, Shropshire, UK
- IMT International Limited, Tattenhall, Chester, UK
| | - Anthony E Bolton
- Nature’s SAFE, Chapel Field Stud, Ash Lane, Whitchurch, Shropshire, UK
| | - Lucy Morgan
- Gemini Genetics, Chapel Field Stud, Ash Lane, Whitchurch, UK
| | | | - Ruth Appeltant
- Nuffield Department of Women’s and Reproductive Health, University of Oxford, Women’s Centre, Level 3, John Radcliffe Hospital, Oxford, UK
| | - Susan L Walker
- Nature’s SAFE, Chapel Field Stud, Ash Lane, Whitchurch, Shropshire, UK
- Chester Zoo, Upton-by-Chester, UK
| | - James D Gillis
- South-East Zoo Alliance for Reproduction & Conservation, Yulee, Florida, USA
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Molecular and Histological Evaluation of Sheep Ovarian Tissue Subjected to Lyophilization. Animals (Basel) 2021; 11:ani11123407. [PMID: 34944182 PMCID: PMC8697944 DOI: 10.3390/ani11123407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/19/2021] [Accepted: 11/26/2021] [Indexed: 12/18/2022] Open
Abstract
Simple Summary Freeze-drying (or lyophilization) is a method to preserve cells and tissues in which frozen material is dried by sublimation of ice. One of the main advantages is that nitrogen and dry ice are no longer required for the storage and shipment of biological material, which can be kept at room temperature or 4 °C, resulting in enormous reductions in costs. Although widely used to preserve biomolecules and macromolecular assemblies, freeze-drying of cells and tissues is currently experimental. Here, we lyophilized sheep ovarian tissue with a novel device named Darya and assessed effects on tissue integrity and gene expression. We show that ovarian tissue survives lyophilization procedures, maintaining its general structure and reacting to the different experimental steps by regulation of specific genes. Our results contribute to the optimization of protocols to freeze-dry ovarian tissues and may find application in programs of animal and human reproductive tissue preservation. Abstract Cryopreservation is routinely used to preserve cells and tissues; however, long time storage brings many inconveniences including the use of liquid nitrogen. Freeze-drying could enable higher shelf-life stability at ambient temperatures and facilitate transport and storage. Currently, the possibility to freeze-dry reproductive tissues maintaining vitality and functions is still under optimization. Here, we lyophilized sheep ovarian tissue with a novel device named Darya and a new vitrification and drying protocol and assessed effects on tissue integrity and gene expression. The evaluation was performed immediately after lyophilization (Lio), after rehydration (LR0h) or after two hours of in vitro culture (IVC; LR2h). The tissue survived lyophilization procedures and maintained its general structure, including intact follicles at different stages of development, however morphological and cytoplasmic modifications were noticed. Lyophilization, rehydration and further IVC increasingly affected RNA integrity and caused progressive morphological alterations. Nevertheless, analysis of a panel of eight genes showed tissue survival and reaction to the different procedures by regulation of specific gene expression. Results show that sheep ovarian tissue can tolerate the applied vitrification and drying protocol and constitute a valid basis for further improvements of the procedures, with the ultimate goal of optimizing tissue viability after rehydration.
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Praxedes ÉCG, Bezerra LGP, Moreira SSJ, Santos CS, Brasil AV, Silva AMD, Guerreiro DD, Pereira AF, Rodrigues APR, Silva AR. Microbiological load and preantral follicle preservation using different systems for ovarian tissue vitrification in the red-rumped agouti. Cryobiology 2021; 103:123-128. [PMID: 34454959 DOI: 10.1016/j.cryobiol.2021.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/21/2021] [Accepted: 08/23/2021] [Indexed: 12/01/2022]
Abstract
We evaluated the effect of open and closed systems used for ovarian tissue vitrification on the microbiological load and preservation of preantral follicles (PAFs) in the red-rumped agoutis. The ovaries from eight females were recovered and fragmented, with four cortexes fragments immediately fixed and evaluated (fresh group). The other fragments were processed for the solid-surface vitrification method (SSV) or an ovarian tissue cryosystem (OTC) using fetal calf serum, ethylene glycol, and sucrose as cryoprotectants, stored for two weeks, and rewarmed. Subsequently, fragments were subjected to a 24-h in vitro culture and assessed for microbiological load, PAF morphology, and DNA integrity. There was no fungal contamination; however, the vitrified samples from two individuals showed bacterial contamination of 79 200 colony forming units per milliliter (CFU)/mL for SSV and 3120 CFU/mL for OTC. From those samples, a total of eight different types of bacterial colonies were isolated and identified as coagulase-negative Staphylococci and Gram-positive bacilli. Regarding PAF morphology, both systems provided adequate preservation, with values higher than 70% normal follicles observed before and after culture. The TUNEL assay revealed that both SSV (52.39%) and OTC (41.67%) could preserve DNA integrity after vitrification and after 24 h of culture. In summary, both open and closed systems were equally efficient in preserving agouti ovarian tissues, especially concerning the preantral follicle morphology and DNA integrity; however, the OTC seems to provide a less adequate environment for bacterial proliferation.
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Affiliation(s)
- Érica Camila Gurgel Praxedes
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Luana Grasiele Pereira Bezerra
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Samara Sandy Jeronimo Moreira
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Caio Sergio Santos
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Andreza Vieira Brasil
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Andréia Maria da Silva
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Denise Damasceno Guerreiro
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculdade de Veterinária, Universidade Do Ceara, Av. Paranjana 1700, Campus Do Itaperi, 60714-903, Fortaleza, CE, Brazil
| | | | - Ana Paula Ribeiro Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), Faculdade de Veterinária, Universidade Do Ceara, Av. Paranjana 1700, Campus Do Itaperi, 60714-903, Fortaleza, CE, Brazil
| | - Alexandre Rodrigues Silva
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural Do Semi-Árido (UFERSA), BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil.
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11
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Brito DCC, Domingues SFS, Rodrigues APR, Silva LM, Alves KA, Wu X, Francisco TS, Barroso Neto IL, Freire VN, Figueiredo JR, Pieczarka JC, Santos RR. Betaine-loaded CaCO 3 microparticles improve survival of vitrified feline preantral follicles through higher mitochondrial activity and decreased reactive oxygen species. Reprod Fertil Dev 2021; 32:531-537. [PMID: 32087765 DOI: 10.1071/rd19068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 08/21/2019] [Indexed: 12/11/2022] Open
Abstract
Ovary fragments from six sexually mature cats were vitrified in the presence or absence of betaine or ascorbic acid, loaded (7.4 or 74µM betaine; 20 or 200µM ascorbic acid) or not (1mM betaine or 0.3mM ascorbic acid) into CaCO3 microparticles, and assessed for follicular morphology, oxidative stress and mitochondrial activity Feline ovarian tissue was successfully preserved after vitrification in the presence of 74µM betaine loaded in CaCO3 microparticles, as confirmed by morphological analysis and the density of preantral follicles and stromal cells, as well as by the increased mitochondrial activity and decreased production of reactive oxygen species.
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Affiliation(s)
- D C C Brito
- Laboratory of Cytogenetics, Center for Advanced Studies in Biodiversity, Biological Sciences Institute, Federal University of Pará, Av. Perimetral, 2-224 - Guamá, 66077-830, Belém-PA, Brazil; and Laboratory of Wild Animal Biology and Medicine, Federal University of Pará, Av. Perimetral, 2-224 - Guamá, 66077-830, Belém-PA, Brazil; and Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles, Faculty of Veterinary Medicine, Ceará State University, Av. Dr. Silas Munguba, 1700 - Itaperi, 60714-903, Fortaleza-CE, Brazil; and Corresponding author.
| | - S F S Domingues
- Laboratory of Wild Animal Biology and Medicine, Federal University of Pará, Av. Perimetral, 2-224 - Guamá, 66077-830, Belém-PA, Brazil
| | - A P R Rodrigues
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles, Faculty of Veterinary Medicine, Ceará State University, Av. Dr. Silas Munguba, 1700 - Itaperi, 60714-903, Fortaleza-CE, Brazil
| | - L M Silva
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles, Faculty of Veterinary Medicine, Ceará State University, Av. Dr. Silas Munguba, 1700 - Itaperi, 60714-903, Fortaleza-CE, Brazil
| | - K A Alves
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles, Faculty of Veterinary Medicine, Ceará State University, Av. Dr. Silas Munguba, 1700 - Itaperi, 60714-903, Fortaleza-CE, Brazil
| | - X Wu
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA 30322, USA; and Department of Infectious Disease, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang, PR China
| | - T S Francisco
- Department of Physics, Federal University of Ceará, Av. da Universidade, 2853 - Benfica, 60020-181, Fortaleza - CE, Brazil; and Department of Chemistry, State University of Vale do Acarau, Av. da Universidade, 850 - Jerônimo de Medeiros Prado, Sobral - CE, 62010-295, Brazil
| | - I L Barroso Neto
- Department of Physics, Federal University of Ceará, Av. da Universidade, 2853 - Benfica, 60020-181, Fortaleza - CE, Brazil
| | - V N Freire
- Department of Physics, Federal University of Ceará, Av. da Universidade, 2853 - Benfica, 60020-181, Fortaleza - CE, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles, Faculty of Veterinary Medicine, Ceará State University, Av. Dr. Silas Munguba, 1700 - Itaperi, 60714-903, Fortaleza-CE, Brazil
| | - J C Pieczarka
- Laboratory of Cytogenetics, Center for Advanced Studies in Biodiversity, Biological Sciences Institute, Federal University of Pará, Av. Perimetral, 2-224 - Guamá, 66077-830, Belém-PA, Brazil
| | - R R Santos
- Laboratory of Wild Animal Biology and Medicine, Federal University of Pará, Av. Perimetral, 2-224 - Guamá, 66077-830, Belém-PA, Brazil
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Amelkina O, Comizzoli P. Initial response of ovarian tissue transcriptome to vitrification or microwave-assisted dehydration in the domestic cat model. BMC Genomics 2020; 21:828. [PMID: 33238878 PMCID: PMC7690003 DOI: 10.1186/s12864-020-07236-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Background Long term preservation of living ovarian tissues is a critical approach in human reproductive medicine as well as in the conservation of rare animal genotypes. Compared to single cell preservation, optimization of protocols for tissues is highly complex because of the diversity of cells responding differently to non-physiological conditions. Using the prepubertal domestic cat as a model, the objective was to study immediate effects of vitrification or microwave-assisted dehydration on the global transcriptome dynamics in the ovarian cortex. RNA sequencing was performed on ovarian tissues (n = 6 individuals) from different conditions: fresh tissue after dissection (F), vitrified/warmed tissue (V), tissue dehydrated for 5 min (D5) or 10 min (D10) followed by rehydration. Differential gene expression analysis was performed for comparison pairs V vs. F, D10 vs. F, D5 vs. F and D10 vs. D5, and networks were built based on results of functional enrichment and in silico protein-protein interactions. Results The impact of the vitrification protocol was already measurable within 20 min after warming and involved upregulation of the expression of seven mitochondrial DNA genes related to mitochondrial respiration. The analysis of D10 vs. F revealed, 30 min after rehydration, major downregulation of gene expression with enrichment of in silico interacting genes in Ras, Rap1, PI3K-Akt and MAPK signaling pathways. However, comparison of D5 vs. F showed negligible effects of the shorter dehydration protocol with two genes enriched in Ras signaling. Comparison of D10 vs. D5 showed downregulation of only seven genes. Vitrification and dehydration protocols mainly changed the expression of different genes and functional terms, but some of the differentially expressed genes formed a major in silico protein-protein interaction cluster enriched for mitochondrial respiration and Ras/MAPK signaling pathways. Conclusions Our results showed, for the first time, different effects of vitrification and microwave-assisted dehydration protocols on the global transcriptome of the ovarian cortex (using the domestic cat as a biomedical model). Acquired data and networks built on the basis of differentially expressed genes (1) can help to better understand stress responses to non-physiological stresses and (2) can be used as directions for future preservation protocol optimizations. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-020-07236-z.
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Affiliation(s)
- Olga Amelkina
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA
| | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA.
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Long-term Preservation of Testicular Tissue Integrity and Viability Using Vitrification in the Endangered Black-Footed Ferret ( Mustela Nigripes). Animals (Basel) 2020; 10:ani10101865. [PMID: 33066219 PMCID: PMC7602014 DOI: 10.3390/ani10101865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/07/2020] [Accepted: 10/11/2020] [Indexed: 12/31/2022] Open
Abstract
Simple Summary In addition to semen preservation, systematic cryo-banking of testicular tissues is critical to preserve the genetic value of recently deceased or neutered black-footed ferrets. Mature sperm cells produced from vitrified-warmed tissues could be used for in vitro fertilization over multiple generations, which would enhance the genetic management of this rare and endangered species. The objective of the study was to evaluate structural and functional properties of vitrified testicular tissues directly after warming or after warming plus a short period of in vitro culture. Fresh, vitrified/warmed, and warmed/cultured tissues from five adults were analyzed through histology, DNA fragmentation, cell survival, and germ cell composition. Percentages of intact seminiferous tubules decreased right after vitrification/warming and improved after culture (reaching same percentages as the fresh controls). While proportions of cells with intact DNA and viable cells were affected by vitrification/warming, they were then similar or better after additional culture than in the fresh tissue. Proportions of cells labeled with differentiation markers also increased during in vitro culture. We demonstrated for the first time that black-footed ferret testicular tissues can be vitrified and revived, which will potentially contribute to new strategies to enhance assisted reproduction as well as conservation efforts in that rare and endangered species. Abstract Systematic cryo-banking of semen and testicular tissues is critical to preserve the genetic value of recently deceased or neutered black-footed ferrets (BFFs). Specifically, recovering or producing mature sperm cells from vitrified-warmed issues offers additional options in assisted reproduction. This could, in turn, enhance the genetic management of this rare and endangered species over multiple generations. The objective of the study was to evaluate structural properties, DNA fragmentation, cell viability, and germ cell composition in vitrified testicular tissues from BFFs directly after warming or after warming plus a short in vitro culture period. Tissue biopsies from five adult BFFs were either kept fresh or vitrified with a standard protocol (using dimethylsulphoxide (DMSO) and glycerol) and warmed at 50 °C for 5 s. Some of the warmed samples were then cultured in vitro for 24 h. Fresh, warmed, and warmed/cultured tissues were analyzed using different indicators: histology of seminiferous tubules, intact Sertoli cells (vimentin labeling), DNA integrity, cell viability, germ cell composition (Oct4 and Boule labeling). Percentages of intact seminiferous tubules decreased after vitrification/warming and returned to the level of fresh samples after culture. While percentages of cells labeled with vimentin, with intact DNA integrity, or proportions of viable cells were affected by vitrification/warming, they all reached similar or better levels than the fresh tissue after culture. Proportions of cells labeled with Boule antibodies also improved during in vitro culture post-warming. We demonstrated for the first time that BFF testes subjected to vitrification, rapid warming, and short in vitro culture were viable and maintained the ability to resume germ cell progression. Cryopreserved testicular tissues could potentially contribute to new strategies to enhance BFF assisted reproduction as well as conservation efforts.
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Yong KW, Laouar L, Elliott JAW, Jomha NM. Review of non-permeating cryoprotectants as supplements for vitrification of mammalian tissues. Cryobiology 2020; 96:1-11. [PMID: 32910946 DOI: 10.1016/j.cryobiol.2020.08.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 12/30/2022]
Abstract
Vitrification of mammalian tissues is important in the areas of human assisted reproduction, animal reproduction, and regenerative medicine. Non-permeating cryoprotectants (CPAs), particularly sucrose, are increasingly used in conjunction with permeating CPAs for vitrification of mammalian tissues. Combining non-permeating and permeating CPAs was found to further improve post-thaw viability and functionalities of vitrified mammalian tissues, showing the potential applications of such tissues in various clinical and veterinary settings. With the rising demand for the use of non-permeating CPAs in vitrification of mammalian tissues, there is a strong need for a timely and comprehensive review on the supplemental effects of non-permeating CPAs toward vitrification outcomes of mammalian tissues. In this review, we first discuss the roles of non-permeating CPAs including sugars and high molecular weight polymers in vitrification. We then summarize the supplemental effects of non-permeating CPAs on viability and functionalities of mammalian embryos, and ovarian, testicular, articular cartilage, tracheal, and kidney tissues following vitrification. Lastly, challenges associated with the use of non-permeating CPAs in vitrification of mammalian tissues are briefly discussed.
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Affiliation(s)
- Kar Wey Yong
- Department of Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2B7, Canada
| | - Leila Laouar
- Department of Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2B7, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada; Department of Laboratory Medicine and Pathology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2R7, Canada
| | - Nadr M Jomha
- Department of Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, T6G 2B7, Canada.
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Silva AMD, Pereira AF, Comizzoli P, Silva AR. Cryopreservation and Culture of Testicular Tissues: An Essential Tool for Biodiversity Preservation. Biopreserv Biobank 2020; 18:235-243. [PMID: 32282240 DOI: 10.1089/bio.2020.0010] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Systematic cryo-banking of reproductive tissues could enhance reproductive management and ensure sustainability of rare mammalian genotypes. Testicular tissues contain a vast number of germ cells, including at early stages (spermatogonia and spermatocytes), that can potentially develop into viable spermatozoa after grafting or culture in vitro, and the resulting sperm cells then can be used for assisted reproductive techniques. The objective of this review was to describe current advances, limitations, and perspectives related to the use of testicular tissue preservation as a strategy for the conservation of male fertility. Testes can be obtained from mature or prepubertal individuals, immediately postmortem or by orchiectomy, but testicular biopsies could also be an alternative to collect samples from living individuals. Testicular fragments can be then cryopreserved by using slow or ultra-rapid freezing, or even vitrification methods. The composition of cryopreservation media can vary according to species-specific characteristics, especially regarding the cryoprotectant type and concentration. Finally, spermatozoa have been usually obtained after xenografting of testicular fragments into severely immunodeficient mice, while this method still has to be optimized after in vitro culture conditions.
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Affiliation(s)
- Andréia Maria da Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | | | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Veterinary Hospital, Washington, District of Columbia, USA
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Luvoni GC, Colombo M. Cold case: Small animal gametes cryobanking. Theriogenology 2020; 150:445-451. [PMID: 32164990 DOI: 10.1016/j.theriogenology.2020.02.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 02/29/2020] [Indexed: 01/06/2023]
Abstract
Germplasm preservation of animals, whether they are valuable domestic breeds or rare species, is the main goal of gamete cryobanking. Dogs and cats act as models for this purpose thanks to the wide availability of biological material which can be employed to experiment protocols that can then be applied to wild animals. This review is focused on spermatozoa, oocytes and gonadal tissues cryobanking in small domestic animals, which is still an unsolved case. Like in a courtroom, evidences of cryoinjuries affecting cellular structures will be presented, penalties as loss of functionality due to cellular alterations will be described, and appeal as strategies to protect gametes from damages or rescue their functionality will be discussed. Differences and similarities between single cell or tissue cryopreservation will be highlighted, together with the rationale for the choice of one type of preservation or another and the fundamental principles which they are based on. The deep analysis of different aspects that still hamper the success of cryopreservation in small animals can help clarify where research is most needed. Therefore, as in a cold case, investigation should remain open in order to hopefully find the solution and make these procedures more and more efficient in the future.
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Affiliation(s)
- Gaia Cecilia Luvoni
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare "Carlo Cantoni", Università degli Studi di Milano, Via Celoria 10, 20133, Milan, Italy.
| | - Martina Colombo
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare "Carlo Cantoni", Università degli Studi di Milano, Via Celoria 10, 20133, Milan, Italy.
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Do VH, Catt S, Kinder JE, Walton S, Taylor-Robinson AW. Vitrification of in vitro-derived bovine embryos: targeting enhancement of quality by refining technology and standardising procedures. Reprod Fertil Dev 2020; 31:837-846. [PMID: 30625115 DOI: 10.1071/rd18352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/06/2018] [Indexed: 01/02/2023] Open
Abstract
Bovine invitro fertilisation technology has been widely exploited in commercial settings. The majority of invitro-derived cattle embryos are transferred into recipient cows as recently collected (i.e. 'fresh') embryos due to the lack of a reliable cryopreservation method that results in favourable pregnancy rates following transfer of thawed embryos. This is a primary reason for the poor industry uptake of this extreme temperature freezing process. Numerous investigations into vitrification have revealed the importance of rapid cooling and warming rates, enhancing embryo viability after cryopreservation compared with conventional slow freezing. Those studies spawned a considerable assortment of cryovessels and diversity of procedures, delivering variable rates of success, which makes performing vitrification consistently a practical challenge. Hence, further research is required in order to both optimise and standardise vitrification methodology and to design a cryovessel that enables direct transfer of vitrified embryos to recipients after warming. In parallel with improvements in vitrification, it is important to continue to raise the quality of invitro-derived cattle embryos through modifications in laboratory culture techniques. The twin goals of methodology refinement and standardisation, leading to embryo quality enhancement, are each imperative if invitro fertilisation technology is to be adopted in the field.
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Affiliation(s)
- V H Do
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Qld 4702, Australia
| | - S Catt
- Education Program in Reproduction and Development, Department of Obstetrics and Gynaecology, Monash University, Clayton, Vic. 3168, Australia
| | - J E Kinder
- Department of Animal Sciences, Ohio State University, OH 43210, USA
| | - S Walton
- Australian Reproductive Technologies, Mt Chalmers, Qld 4702, Australia
| | - A W Taylor-Robinson
- School of Health, Medical and Applied Sciences, Central Queensland University, Brisbane, Qld 4000, Australia
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Lee PC, Adams DM, Amelkina O, White KK, Amoretti LA, Whitaker MG, Comizzoli P. Influence of microwave-assisted dehydration on morphological integrity and viability of cat ovarian tissues: First steps toward long-term preservation of complex biomaterials at supra-zero temperatures. PLoS One 2019; 14:e0225440. [PMID: 31800613 PMCID: PMC6892495 DOI: 10.1371/journal.pone.0225440] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/05/2019] [Indexed: 11/18/2022] Open
Abstract
Ovarian tissue contains large pools of immature oocytes enclosed in primordial follicles, making it an attractive target for fertility preservation in female cancer patients, livestock and wild species. Compared to cryopreservation, desiccation and long-term storage of samples at supra-zero temperatures (using strategies inspired from small organisms to resist extreme environments) would be more cost-effective and convenient. The objective of the study was to characterize the influence of microwave-assisted dehydration on structural and functional properties of living ovarian tissues. While this method allows preservation of single cells (cat oocytes and sperm cells so far) using trehalose as the xeroprotectant, it has not been developed for multicellular tissues yet. Ovarian cortex biopsies were reversibly permeabilized, exposed to various concentrations of trehalose, and dried for different times using a commercial microwave under thermal control. Effective dehydration of samples along with proper trehalose retention were reached within 30 min of microwave drying. Importantly, the process did not affect morphology and DNA integrity of follicles or stromal cells. Moreover, transcriptional activity and survival of follicles were partially maintained following 10 min of drying, which already was compatible with storage at non-cryogenic temperatures. Present data provide critical foundation to develop dry-preservation techniques for long-term storage of living multicellular tissues.
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Affiliation(s)
- Pei-Chih Lee
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
| | - Daniella M. Adams
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
| | - Olga Amelkina
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
| | - Kylie K. White
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
| | - Luigi A. Amoretti
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
| | - Marinda G. Whitaker
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
| | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America
- * E-mail:
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19
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Function of Cryopreserved Cat Ovarian Tissue after Autotransplantation. Animals (Basel) 2019; 9:ani9121065. [PMID: 31810266 PMCID: PMC6941094 DOI: 10.3390/ani9121065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 11/26/2019] [Accepted: 11/29/2019] [Indexed: 01/04/2023] Open
Abstract
Simple Summary Assisted reproduction techniques are potentially important tools for the creation of gene banks largely focused on preserving female germ cells and tissues, cryopreservation being one of the most important. Since there is not yet a protocol established for the preservation of cat ovarian tissue, we decided to assess our cryopreservation protocol with autotransplantation of the ovary. Our study showed that even though follicular survival was low, follicles were able to survive up to 28 days of transplantation and develop up to the antral stage, which helps elucidate the path for preservation of felid ovaries. Once this technique is improved, it may contribute to the preservation of wild feline species. Abstract The aim of this study was to assess a slow-freezing protocol of cat ovarian tissue cryopreservation using autotransplantation. Four adult queens were ovariohysterectomized and the ovaries were fragmented and cryopreserved. After one week, the grafts were thawed and autografted to the subcutaneous tissue of the dorsal neck of each queen, then randomly removed after 7, 14, 28, 49, and 63 days after transplantation. Percentages of morphologically normal primordial and growing follicles (MNFs) were 88% and 97%, respectively, in fresh tissue samples (fresh controls), and 74% and 100%, respectively, immediately after thawing (cryo D0). No MNFs were found after 49 days of transplantation. In both fresh control and cryo D0 fragments, granulosa cells were frequently in proliferation. Two morphologically normal antral follicles were detected in one queen on Day 28 post-transplantation. Connective tissue fibers increased, suggesting replacement of active ovarian cortex by fibrous tissue. Tissue vascularization was observed at 7 days after grafting, and wide blood vessels were clearly visible on Days 49 and 63. In conclusion, although follicular survival was low after cryopreservation and grafting of cat ovarian tissue, follicles were able to develop up to the antral stage, which is an encouraging outcome.
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Lima GL, Luz VB, Lunardi FO, Souza ALP, Peixoto GCX, Rodrigues APR, Oliveira MF, Santos RR, Silva AR. Effect of cryoprotectant type and concentration on the vitrification of collared peccary (Pecari tajacu) ovarian tissue. Anim Reprod Sci 2019; 205:126-133. [PMID: 31047761 DOI: 10.1016/j.anireprosci.2019.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/17/2019] [Accepted: 04/25/2019] [Indexed: 10/26/2022]
Abstract
The aim of the present study was to establish a protocol for solid surface vitrification of peccary ovarian tissue by using different cryoprotectants. Ovarian pairs from five adult females were fragmented and two fragments (fresh control group) were immediately subjected to morphological evaluation using classical histology, transmission electron microscopy, and viability analysis using fluorescent probes. The remaining fragments (n = 18) were vitrified using a solid surface method with different concentrations (3 or 6 M) of ethylene glycol (EG), dimethyl sulfoxide (DMSO) or dimethyl formamide (DMF). After 2 weeks, samples were re-warmed and evaluated. A decrease in the percentage of morphologically normal preantral follicles (PFs) was verified for all the groups in comparison to the fresh control (92.0 ± 2.8%); however, if only the primordial follicles are considered, the most effective preservation (P < 0.05) was achieved with the use of EG at 3 M (74.2±7.3%) or DMSO at 6 M (75.0 ± 4.2%). Ultrastructural analysis indicated there were well-preserved PFs in all the groups evaluated, having well-defined membranes, a few vacuoles, and organelles that were uniformly distributed throughout the cytoplasm, mainly round and elongated mitochondria in close association with lipid droplets. Viability was preserved (P < 0.05) with the use of EG at 3 (97%) or 6 (97%) M, DMSO at 3 (100%), and DMF at 6 (97%) M. Solid surface vitrification, therefore, is an effective method for conservation of peccary female germplasm, especially with the use of EG at 3 M, which was highly effective for preservation of both the morphology and viability of PFs.
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Affiliation(s)
- Gabriela L Lima
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Valesca B Luz
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Franciele O Lunardi
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Universidade Estadual do Ceará - UECE, Paranjana Ave, 1700, Itaperi, 60740-000, Fortaleza, CE, Brazil
| | - Ana L P Souza
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Gislayne C X Peixoto
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Ana Paula R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Universidade Estadual do Ceará - UECE, Paranjana Ave, 1700, Itaperi, 60740-000, Fortaleza, CE, Brazil
| | - Moacir F Oliveira
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil
| | - Regiane R Santos
- Laboratory of Wild Animal Biology and Medicine, Faculty of Veterinary Medicine, Federal University of Pará, Belém, Pará, Brazil; Schothorst Feed Research, the Netherlands
| | - Alexandre R Silva
- Laboratory on Animal Germplasm Conservation, Universidade Federal Rural do Semi-Árido - UFERSA, BR 110, Km 47, Costa e Silva, 59625-900, Mossoró, RN, Brazil.
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Fujihara M, Kaneko T, Inoue-Murayama M. Vitrification of canine ovarian tissues with polyvinylpyrrolidone preserves the survival and developmental capacity of primordial follicles. Sci Rep 2019; 9:3970. [PMID: 30850725 PMCID: PMC6408471 DOI: 10.1038/s41598-019-40711-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 02/22/2019] [Indexed: 12/24/2022] Open
Abstract
Ovarian tissue cryopreservation combined with immature follicle development can preserve female fertility in wildlife, regardless of age or reproductive timing. To investigate the effects of different cryopreservation methods and cryoprotectants on follicular survival and developmental capacity, ovarian cortical pieces from 15 dogs were cryopreserved by slow freezing or vitrification with different additional cryoprotectants as follows: dimethyl sulfoxide (DMSO), polyvinylpyrrolidone (PVP), combined DMSO and PVP (each at half the concentration of when used independently), or none (control). Cryopreserved ovarian tissues were evaluated by neutral red staining, histology, and xenotransplantation assays. Among cryopreservation conditions tested, vitrification with combined DMSO and PVP significantly improved the maintenance of follicular morphology compared to that in control. Furthermore, ovarian tissues vitrified using this condition maintained follicle morphology and developmental capacity 9 weeks after grafting, as shown by an increased percentage of primary and secondary follicles and a significant decrease in the transition stage from primordial to primary stage follicles 5 and 9 weeks after grafting. In contrast, slow freezing and control groups lost intact follicles by 5 weeks after grafting. The described cryopreservation techniques, which preserve canine follicle development, will build the foundation of ovarian tissue cryopreservation to preserve female fertility in wild canids.
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Affiliation(s)
- Mayako Fujihara
- Wildlife Research Center, Kyoto University, Kyoto, 606-8203, Japan.
| | - Takehito Kaneko
- Division of Science and Engineering, Graduate School of Arts and Science, Iwate University, Morioka, 020-8551, Japan.,Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, Morioka, 020-8551, Japan
| | - Miho Inoue-Murayama
- Wildlife Research Center, Kyoto University, Kyoto, 606-8203, Japan.,Wildlife Genome Collaborative Research Group, National Institute for Environmental Studies, Tsukuba, 305-8506, Japan
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Piras AR, Burrai GP, Ariu F, Falchi L, Zedda MT, Pau S, Gadau SD, Antuofermo E, Bebbere D, Ledda S, Bogliolo L. Structure of preantral follicles, oxidative status and developmental competence of in vitro matured oocytes after ovary storage at 4 °C in the domestic cat model. Reprod Biol Endocrinol 2018; 16:76. [PMID: 30097048 PMCID: PMC6087010 DOI: 10.1186/s12958-018-0395-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 08/02/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Storage conditions during transportation of explanted ovaries are a critical step in setting up fertility preservation protocols in both animal and human fields. Here, we evaluated the effects of ovary storage at 4 °C on the preservation of preantral follicles and oocytes retrieved from antral follicles using the domestic cat as model. METHODS Ovaries were harvested from fifty-five healthy domestic queens during ovariectomy and stored at 4 °C for 0 (control), 24, 48, 72 and 96 h. In Experiment 1, the effects of the storage period at 4 °C on the morphology, cytoskeleton (α/β tubulin) and DNA integrity (phosphorylation of histone H2AX) of preantral follicles were investigated. In Experiment 2, oocytes recovered from antral follicles were matured and fertilized in vitro to evaluate their meiotic and developmental competence. Reactive oxygen species (ROS), glutathione (GSH) and lipid peroxidation were measured in matured oocytes. RESULTS The results showed that: a) storage up to 24 h did not affect the morphology and the DNA integrity of preantral follicles; b) extended storage times caused progressive morphological abnormalities, disassembling of microtubules and DNA damage; c) storage up to 48 h did not influence in vitro meiotic maturation of oocytes nor cleavage after in vitro fertilization. However, only oocytes stored within the ovary for 24 h produced blastocysts in a percentage similar to control oocytes; d) GSH levels of in vitro matured oocytes did not change at any time during ovary storage; a progressive increase in ROS levels was detected from 48 h associated with elevated lipid peroxidation at 72 and 96 h of storage. CONCLUSIONS Storage of cat ovaries for up to 24 h caused minimal alteration of preantral follicles and oocytes. The extension of the storage period beyond 24 h progressively impaired the structure of follicles, and modified the oxidative status of in vitro matured oocytes and their developmental competence after in vitro fertilization. This information may help when setting up programs for fertility conservation, especially for wild feline species which die in geographic areas located far away from ARTs centers.
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Affiliation(s)
- Anna Rita Piras
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Giovanni Pietro Burrai
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Federica Ariu
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Laura Falchi
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Maria Teresa Zedda
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Salvatore Pau
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Sergio Domenico Gadau
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Elisabetta Antuofermo
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Daniela Bebbere
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Sergio Ledda
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Luisa Bogliolo
- 0000 0001 2097 9138grid.11450.31Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
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Brito DC, Domingues SF, Rodrigues APR, Figueiredo JR, Santos RR, Pieczarka JC. Vitrification of domestic cat (Felis catus) ovarian tissue: Effects of three different sugars. Cryobiology 2018; 83:97-99. [DOI: 10.1016/j.cryobiol.2018.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/21/2018] [Accepted: 06/12/2018] [Indexed: 11/27/2022]
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Leonel ECR, Vilela JMV, Carrilho DDJ, Lucci CM. Cat ovarian follicle ultrastructure after cryopreservation with ethylene glycol and dimethyl sulfoxide. Cryobiology 2018; 83:9-14. [PMID: 29981301 DOI: 10.1016/j.cryobiol.2018.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 01/22/2023]
Abstract
Ovarian tissue cryopreservation is a promising technique for fertility maintenance. The aim of this study was to compare the morphology of domestic cat ovarian follicles after tissue cryopreservation with ethylene glycol (EG) and dimethyl sulfoxide (Me2SO). Ovaries from healthy adult cats undergoing elective ovariohysterectomy were used. Eight fragments were obtained from each pair of ovaries: two were used as fresh controls; three were submitted to fresh perfusion toxicity test and perfused with M199, 10% fetal calf serum and 0.4% sucrose containing Me2SO 1.5 M, EG 1.5 M or Me2SO 0.75 M + EG 0.75 M; and the remaining three fragments were perfused as described and submitted to slow freezing. After 45 days of cryopreservation, the samples were thawed, fixed and processed for light and transmission electron microscopy (TEM). The percentages of morphologically normal follicles identified by light microscopy were higher in the control group (94.45%) in comparison to the frozen groups (80.56% with EG, 78.7% with Me2SO and 75.87% with EG + Me2SO). The fresh perfused tissue showed no statistical difference compared to control or frozen samples. The TEM analysis showed less damage in the ultrastructure of follicles from the Me2SO group in comparison with the EG and Me2SO + EG groups. According to the morphological analysis, 1.5 M Me2SO is the best cryoprotectant for cryopreservation of domestic cat ovarian tissue regarding the morphology of preantral follicles after thawing. Further studies regarding the viability of these follicles should be performed.
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Affiliation(s)
- Ellen Cristina Rivas Leonel
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, Distrito Federal, 70910-900, Brazil.
| | - Janice Miranda Vasconcellos Vilela
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, Distrito Federal, 70910-900, Brazil.
| | - Daniela de Jesus Carrilho
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, Distrito Federal, 70910-900, Brazil.
| | - Carolina Madeira Lucci
- Departamento de Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, Distrito Federal, 70910-900, Brazil.
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Cryopreservation of domestic cat (Felis catus) ovarian tissue: Comparison of two vitrification methods. Theriogenology 2018; 111:69-77. [DOI: 10.1016/j.theriogenology.2018.01.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 12/29/2017] [Accepted: 01/22/2018] [Indexed: 11/18/2022]
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Comizzoli P, Paulson EE, McGinnis LK. The mutual benefits of research in wild animal species and human-assisted reproduction. J Assist Reprod Genet 2018; 35:551-560. [PMID: 29470702 PMCID: PMC5949116 DOI: 10.1007/s10815-018-1136-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 02/06/2018] [Indexed: 01/08/2023] Open
Abstract
Studying the reproductive biology of wild animal species produces knowledge beneficial to their management and conservation. However, wild species also share intriguing similarities in reproductive biology with humans, thereby offering alternative models for better understanding the etiology of infertility and developing innovative treatments. The purpose of this review is to raise awareness in different scientific communities about intriguing connections between wild animals and humans regarding infertility syndromes or improvement of fertility preservation. The objectives are to (1) highlight commonalities between wild species and human fertility, (2) demonstrate that research in wild species-assisted reproductive technologies can greatly enhance success in human reproductive medicine, and (3) recognize that human fertility preservation is highly inspiring and relevant to wild species conservation. In addition to having similar biological traits in some wild species and humans, the fact of sharing the same natural environment and the common needs for more options in fertility preservation are strong incentives to build more bridges that will eventually benefit both animal conservation and human reproductive medicine.
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Affiliation(s)
- P Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, 20008, USA.
| | - E E Paulson
- Department of Animal Science, University of California Davis, Davis, CA, USA
| | - L K McGinnis
- Department of Obstetrics and Gynecology and USC-Norris Cancer Center, University of Southern California, Los Angeles, CA, USA
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Martins JLA, Lopes MD, de Souza FF, Possebon FS, Wibbelt G, Jewgenow K. Cat preantral follicle survival after prolonged cooled storage followed by vitrification. Cryobiology 2018; 81:94-100. [PMID: 29470953 DOI: 10.1016/j.cryobiol.2018.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/12/2017] [Accepted: 02/02/2018] [Indexed: 11/18/2022]
Abstract
The aim of this study was to investigate the impact of prolonged storage at 4 °C on survival of cat preantral follicles (PAFs) pre- and post-vitrification. Ovaries were obtained from 12 queens and transported at 4 ºC within 2-6 h. Parts of the ovaries were stored for an additional 24 h or 72 h. The ovarian cortex was dissected, analyzed for viability (neutral red - NR) and morphology (histology - HE and ultrastructural analysis by TEM) and vitrified. We used 2 mm biopsy punches to obtain equal size pieces as the experimental units. After NR assessment, each sample was fixed and embedded in paraffin for HE staining to determine the number of morphologically intact follicles. Another 2 mm piece of ovary was subjected to TEM. NR viability assessment and HE results showed a similar tendency with PAF survival postvitrification even after prolonged cooling at 24 h and 72 h. With TEM, integrity of mitochondria, plasma and basal membranes as well as the presence of pre-granulose cells of PAFs were documented postvitrification for the control group and 24 h prolonged storage group, but not after 72 h storage. Our results showed that cat PAFs can survive prolonged storage followed by vitrification. The described set of techniques are applicable towards creating a gamete bank for endangered feline species.
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Affiliation(s)
- Jorge Luis Araújo Martins
- Laboratory of Small and Wild Animals Reproduction, Department of Animal Reproduction and Veterinary Radiology, FMVZ, UNESP, Botucatu, Brazil.
| | - Maria Denise Lopes
- Laboratory of Small and Wild Animals Reproduction, Department of Animal Reproduction and Veterinary Radiology, FMVZ, UNESP, Botucatu, Brazil
| | - Fabiana Ferreira de Souza
- Laboratory of Small and Wild Animals Reproduction, Department of Animal Reproduction and Veterinary Radiology, FMVZ, UNESP, Botucatu, Brazil
| | | | - Gudrun Wibbelt
- Department of Reproductive Biology, Leibniz-Institute for Zoo and Wildlife Research (IZW), Berlin, Germany
| | - Katarina Jewgenow
- Department of Reproductive Biology, Leibniz-Institute for Zoo and Wildlife Research (IZW), Berlin, Germany
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Demirel MA, Acar DB, Ekim B, Çelikkan FT, Alkan KK, Salar S, Erdemli EA, Özkavukçu S, Yar SS, Kanca H, Baştan A. The evaluation of xenotransplantation of feline ovarian tissue vitrified by needle immersed vitrification technique into male immunodeficient mice. Cell Tissue Bank 2017; 19:133-147. [DOI: 10.1007/s10561-017-9663-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/05/2017] [Indexed: 10/18/2022]
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Gabriel PR, Torres P, Fratto MC, Cisale H, Claver JA, Lombardo DM, Fischman ML. Effects of different sucrose concentrations on vitrified porcine preantral follicles: Qualitative and quantitative analysis. Cryobiology 2017; 76:1-7. [DOI: 10.1016/j.cryobiol.2017.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 01/22/2023]
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Mohammadzadeh F, Safdarian L, Amidi F, Mohammadzadeh A, Mortezaee K, Mehdinejhadiani S, Sobhani A, Ghasemi S, Sargolzaei Aval F. Comparison of the effects of Ham'sF10 and αMEM in combination with FBS or BSA in vitrification/warming solution on quality and viability of sheep ovarian follicles. Reprod Domest Anim 2017; 52:551-560. [DOI: 10.1111/rda.12945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/23/2017] [Indexed: 11/29/2022]
Affiliation(s)
- F Mohammadzadeh
- Department of Anatomical Sciences; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - L Safdarian
- Department of Gynecology; Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - F Amidi
- Department of Anatomical Sciences; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - A Mohammadzadeh
- Department of Reproductive Endocrinology and Embryology; Reproductive Biotechnology Research Center; Avesina Research Institute; ACECR; Tehran Iran
| | - K Mortezaee
- Department of Anatomy; School of Medicine; Kurdistan University of Medical Sciences; Sanandaj Iran
| | - S Mehdinejhadiani
- Department of Anatomical Sciences; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - A Sobhani
- Department of Anatomy; School of Medicine; Kurdistan University of Medical Sciences; Sanandaj Iran
| | - S Ghasemi
- Department of Anatomical Sciences; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - F Sargolzaei Aval
- Department of Anatomical Sciences; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
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