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Lira GPDO, Borges AA, Nascimento MBD, Aquino LVCD, Moura LFDMP, Silva HVR, Ribeiro LR, Oliveira MFD, Pereira AF. Effects of somatic tissue cryopreservation on puma (Puma concolor L, 1771) tissue integrity and cell preservation after in vitro culture. Cryobiology 2021; 101:52-60. [PMID: 34118241 DOI: 10.1016/j.cryobiol.2021.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/30/2022]
Abstract
Somatic resource banks play a crucial role in the conservation of genetic diversity, allowing for the preservation of biological samples from different populations. Puma somatic cells can be recovered from these banks and used in assisted techniques toward enhancing their multiplication and conservation. In response to the population reduction of this ecologically importance species, we aimed to evaluate the capacity of cryopreservation of somatic tissues on the maintenance of the integrity and quality of the cells recovered after culture, with the aim of establishing a somatic tissue bank that will allow for the safeguarding of a wide genetic sampling of pumas. Cryopreservation increased the thickness of the corneum layer in the tissues, and the number of perinuclear halos and empty gaps. Nevertheless, cryopreservation was able to maintain normal fibroblast patterns, even showing an increase in the percentage of collagen fibers. Cryopreservation maintained the proliferative potential of the tissues and the parameters evaluated during in vitro culture, mainly regarding the viability, proliferative activity, and apoptosis levels. Nevertheless, cells from cryopreserved tissues showed decreased metabolism and mitochondrial membrane potential when compared to cells from non-cryopreserved tissues. In summary, we demonstrated for the first time that puma somatic tissues subjected to cryopreservation are viable and maintain tissue integrity, featuring minimal changes after warming. Although viable somatic cells are obtained from these tissues, they undergo alterations in their metabolism and mitochondrial membrane potential. Improvements in the conservation conditions of somatic samples are needed to increase the quality of somatic tissue banks in this species.
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Affiliation(s)
| | - Alana Azevedo Borges
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid (UFERSA), Mossoro, RN, Brazil
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Silva MB, Praxedes ÉA, Borges AA, Oliveira LRM, Nascimento MB, Silva HVR, Silva AR, Pereira AF. Evaluation of the damage caused by in vitro culture and cryopreservation to dermal fibroblasts derived from jaguars: An approach to conservation through biobanks. Zoo Biol 2021; 40:288-296. [PMID: 33755259 DOI: 10.1002/zoo.21606] [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: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 11/09/2022]
Abstract
Ex-situ conservation strategies such as the formation of somatic cell banks are valuable tools for the conservation of jaguars, whose population has been declining in recent years. Once properly established, these cells can be successfully leveraged for future applications. We aimed to assess the effects of in vitro culture and cryopreservation on the establishment of fibroblasts derived from jaguars. Initially, we identified five dermal fibroblastic lines using morphology and immunophenotyping assays; these lines were then subjected to two experiments. In the first experiment, the viability, metabolism, and proliferative activity of cells at different passages (first, third, and tenth) were evaluated. In the second experiment, the cells were cryopreserved and the levels of reactive oxygen species (ROS), mitochondrial membrane potential (ΔΨm) and apoptosis were evaluated after one, three, and ten passages. Noncryopreserved cells were used as controls. The in vitro culture after first, third, and tenth passages and cryopreservation conditions did not affect the proliferative activity and viability. However, cells cultured until tenth passage and frozen/thawed cells showed reduced metabolism. In addition, cryopreserved cells showed higher levels of intracellular ROS and altered ΔΨm when compared with those of noncryopreserved cells. Finally, frozen/thawed cells cultured after ten passages showed reduced proliferative activity and number of viable cells than did frozen/thawed cells cultured after one and three passages. In summary, we have shown that viable fibroblasts can be established from jaguar skin and that although these cells do not show altered viability and proliferative activity, they do undergo damage during extended culture and cryopreservation.
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Affiliation(s)
- Maria B Silva
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Érika A Praxedes
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Alana A Borges
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Lhara R M Oliveira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Matheus B Nascimento
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Herlon V R Silva
- Laboratory of Reproduction of Carnivorous, Ceara State University, Fortaleza, Ceara, Brazil
| | - Alexandre R Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Alexsandra F Pereira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
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Santos MDCB, Aquino LVC, Nascimento MB, Silva MB, Rodrigues LLV, Praxedes ÉA, Oliveira LRM, Silva HVR, Nunes TGP, Oliveira MF, Pereira AF. Evaluation of different skin regions derived from a postmortem jaguar, Panthera onca (Linnaeus, 1758), after vitrification for development of cryobanks from captive animals. Zoo Biol 2021; 40:280-287. [PMID: 33739467 DOI: 10.1002/zoo.21605] [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: 05/03/2020] [Revised: 02/23/2021] [Accepted: 03/10/2021] [Indexed: 11/10/2022]
Abstract
Biological resource banks represent valuable tools for the conservation of species vulnerable to extinction, such as the jaguar. Cryobanks of skins have the potential to safeguard rare genotypes, allowing the potential exploitation of biological samples in animal multiplication technologies and the study of genetic variability. Determination of the most suitable skin regions for tissue conservation can help increase the efficiency of cryobanks and the storage of biological samples. To this end, we evaluated the effects of vitrification of skin tissues from the ear, caudal, and femoral regions of a post-mortem jaguar belonging to a zoo in Brazil. Non-vitrified and vitrified samples were evaluated and compared using quantitative methods, focusing on skin thickness, cell quantification, number of perinuclear halos, collagen and elastic density, and proliferative activity. No differences were observed in skin thickness, number of perinuclear halos, elastic density, and proliferative activity between non-vitrified and vitrified tissues in skin from any region. However, vitrified tissues derived from femoral skin showed a reduction in the number of fibroblasts, epidermal cells and collagen density compared to non-vitrified tissues. In summary, the ear and caudal regions provided the best conservation of somatic tissues derived from jaguars, and skin samples from these regions are therefore the most suitable for the formation of cryobanks.
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Affiliation(s)
- Maria D C B Santos
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Leonardo V C Aquino
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Matheus B Nascimento
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Maria B Silva
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Luanna L V Rodrigues
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Érika A Praxedes
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Lhara R M Oliveira
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
| | - Herlon V R Silva
- Laboratory of Carnivores Reproduction, Faculty of Veterinary, Ceara State University, Fortaleza, Ceará, Brazil
| | - Thalles G P Nunes
- Laboratory of Carnivores Reproduction, Faculty of Veterinary, Ceara State University, Fortaleza, Ceará, Brazil
| | - Moacir F Oliveira
- Laboratory of Apllied Animal Morphophysiology, Center for Agricultural Sciences, UFERSA, Mossoro, Rio Grande do Norte, Brazil
| | - Alexsandra F Pereira
- Laboratory of Animal Biotechnology, Center for Biological and Health Sciences, Federal Rural University of Semi-Arid, Mossoro, Rio Grande do Norte, Brazil
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Costa CA, Borges AA, Nascimento MB, Aquino LV, Silva AR, Oliveira MF, Pereira AF. Effects of Vitrification Techniques on the Somatic Tissue Preservation of Agouti (Dasyprocta leporina Linnaeus, 1758). Biopreserv Biobank 2020; 18:165-170. [DOI: 10.1089/bio.2019.0109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Cibelle A.S. Costa
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Alana A. Borges
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Matheus B. Nascimento
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Leonardo V.C. Aquino
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Alexandre R. Silva
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Moacir F. Oliveira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Alexsandra F. Pereira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
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