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Aquino LVCD, Olindo SL, Silva YLFE, Oliveira LRMD, Moura YBF, Rodrigues ALR, Praxedes ÉA, Oliveira MFD, Silva AR, Pereira AF. Cryopreservation and passaging optimization for Galea spixii (Wagler, 1831) adult skin fibroblast lines: A step forward in species management and genetic studies. Acta Histochem 2024; 126:152185. [PMID: 39059228 DOI: 10.1016/j.acthis.2024.152185] [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: 03/22/2024] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND In vitro culture of fibroblasts is a technique based on cell isolation, physiological characterization, and cryopreservation. This technique has not been described for Galea spixii, therefore, it can be used to learn about its cellular biology and genetic diversity. OBJECTIVE We established fibroblast lines of six G. spixii individuals from several passages (second, fifth, eighth, and tenth) and cryopreserved them. METHODS Fibroblasts recovered from skin biopsies were identified based on morphology, immunocytochemistry, and karyotyping. The cells were analyzed for morphology, ultrastructure, viability, proliferation, metabolism, oxidative stress, bioenergetic potential, and apoptosis before and after cryopreservation. RESULTS After the eighth passage, the fibroblasts showed morphological and karyotypic changes, although their viability, metabolism, and proliferation did not change. An increase in oxidative stress and bioenergetic potential from the fifth to the eighth passages were also observed. Post cryopreservation, cell damage with respect to the ultrastructure, viability, proliferative rate, apoptotic levels, oxidative stress, and bioenergetic potential were verified. CONCLUSION Fibroblasts up to the tenth passage could be cultured in vitro. However, cells at the fifth passage were of better quality to be used for reproductive techniques. Additionally, optimization of the cryopreservation protocol is essential to improve the physiological parameters of these cells.
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Affiliation(s)
| | - Samara Lima Olindo
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
| | | | | | | | | | - Érika Almeida Praxedes
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil. erikaalmeida-@hotmail.com
| | - Moacir Franco de Oliveira
- Laboratory of Applied Animal Morphophysiology, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasma Conservation, Federal Rural University of Semi-Arid, Mossoró, RN, Brazil.
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Mattos LM, Reis FC, Racanicci AMC, Pivato I, Tonelli GSSS, Báo SN, Martins CF. Freezing for the Future: Obtaining Fibroblast Samples from Deceased Wild Mammals for the Brazilian Cerrado Germplasm Bank. Biopreserv Biobank 2023; 21:504-509. [PMID: 35904947 DOI: 10.1089/bio.2022.0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
We isolated and further characterized fibroblasts obtained from postmortem skin biopsies of three different Brazilian wild species (Chrysocyon brachyurus-maned wolf, Cerdocyon thous-crab-eating fox, Mazama gouazoubira-brown brocket deer). The effects of two cryoprotectants, 10% dimethyl sulfoxide (DMSO) and 5% dimethylformamide (DMF), were assessed to determine the most efficient cryopreservation protocol. Such an investigation promotes the creation of germplasm banks, using samples that would otherwise be rejected and permanently lost following the death of the animals. We utilized animal corpses that were involved in highway accidents, found dead in the natural environment, or referred to us from the veterinary hospital at the Brasília Zoo. Fibroblasts from C. brachyurus specimens presented a delay in cell growth in Dulbecco's modified Eagle's medium in relation to other species. This observation is a limiting factor for the future storage of cells from this species. Differences in cellular morphology were observed between C. brachyurus, C. thous, and M. gouazoubira, presenting branched, fusiform, and spherical forms, respectively. The cryoprotective solution containing 10% DMSO was more efficient than 5% DMF medium in preserving the viability of fibroblasts of the three species (p < 0.05). After defining the best cryopreservation solution, a germplasm bank was successfully formed. This biological reservoir is configured as the first germplasm bank containing somatic cells and gametes of wild mammals of the Cerrado biome of Brazil. This material will be used for future characterization of the species and multiplication by means of nuclear transfer cloning.
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Affiliation(s)
- Luciana Miranda Mattos
- Brazilian Agricultural Research Corporation (Embrapa Cerrados), Brasília, Brazil
- University of Brasília, Brasília, Brazil
| | - Filipe Carneiro Reis
- Brazilian Agricultural Research Corporation (Embrapa Cerrados), Brasília, Brazil
- Brasília Zoo, Brasília, Brazil
| | | | - Ivo Pivato
- University of Brasília, Brasília, Brazil
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Rodrigues LLV, Moura YBF, Viana JVDS, de Oliveira LRM, Praxedes ÉA, Vieira JDB, Sales SLA, Silva HVR, Luciano MCDS, Pessoa C, Pereira AF. Full confluency, serum starvation, and roscovitine for inducing arrest in the G 0/G 1 phase of the cell cycle in puma skin-derived fibroblast lines. Anim Reprod 2023; 20:e20230017. [PMID: 37101424 PMCID: PMC10124155 DOI: 10.1590/1984-3143-ar2023-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/22/2023] [Indexed: 04/28/2023] Open
Abstract
The puma population is constantly decreasing, and cloning by somatic cell nuclear transfer can be used to conserve the species. One of the factors determining the success of the development of cloned embryos is the cell cycle stage of the donor cells. We evaluated the effects of full confluency (~100%), serum starvation (0.5% serum), and roscovitine (15 µM) treatments on the cell cycle synchronization in G0/G1 of puma skin-derived fibroblasts by flow cytometric analysis. Also, we assessed the effects of these synchronization methods on morphology, viability, and apoptosis levels using microscopy tools. The results showed that culturing the cells to confluence for 24 h (84.0%), 48 h (84.6%), and 72 h (84.2%) and serum starvation for 96 h (85.4%) yielded a significantly higher percentage of cells arrested in the G0/G1 (P 0.05) phase than cells not subjected to any cell cycle synchronization method (73.9%). Nevertheless, while serum starvation reduced the percentage of viable cells, no difference was observed for the full confluence and roscovitine treatments (P 0.05). Moreover, roscovitine for 12 h (78.6%) and 24 h (82.1%) was unable to synchronize cells in G0/G1 (P 0.05). In summary, full confluency induces puma fibroblast cell cycle synchronization at the G0/G1 stage without affecting cell viability. These outcomes may be valuable for planning donor cells for somatic cell nuclear transfer in pumas.
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Affiliation(s)
| | | | | | | | - Érika Almeida Praxedes
- Laboratório de Biotecnologia Animal, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
| | - José de Brito Vieira
- Laboratório de Oncologia Experimental, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | | | | | | | - Claudia Pessoa
- Laboratório de Oncologia Experimental, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - Alexsandra Fernandes Pereira
- Laboratório de Biotecnologia Animal, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
- Corresponding author:
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Pizzutto CS, Colbachini H, Jorge-Neto PN. One Conservation: the integrated view of biodiversity conservation. Anim Reprod 2021; 18:e20210024. [PMID: 34122656 PMCID: PMC8190570 DOI: 10.1590/1984-3143-ar2021-0024] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/10/2021] [Indexed: 11/22/2022] Open
Abstract
The current global situation requires urgent decision-making to reverse processes of mass extinction of thousands of species. As a way of showing the importance of joint actions in this process, we aim to present the concept of One Conservation as a new proposal for the integration of sustainability, in situ and ex situ conservation for the restoration of ecosystems. According to the United Nations, we are beginning the decade of ecosystem restoration and in association with the International Union for Conservation of Nature guidelines, we can join efforts in the conservation of the planet. The survival of many species of wild animals depends on the management of populations currently maintained in ex situ conditions (under human care). To facilitate the exchange of genetic material between in situ and ex situ populations, reproductive biotechniques have become a great tool, making it possible to restore species in their natural environments. For effective conservation to occur, there must be an integrated view of the problem as a whole, and action for solutions must take place jointly by different spheres of society. Even more, conservation must be carried out by the public sector, the private sector, the third sector, and not less importantly, the agricultural sector. Therefore, One Conservation is defined as an interconnection between ex situ and in situ conservation plans, anthropic actions in the environment, and research in different areas that encompass conservation.
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Affiliation(s)
- Cristiane Schilbach Pizzutto
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
- Instituto Reprocon, Campo Grande, MS, Brasil
| | | | - Pedro Nacib Jorge-Neto
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
- Instituto Reprocon, Campo Grande, MS, Brasil
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Machado LC, Orlandin JR, Karam RG, Rós FA, Martins DDS, Costa GDM, Ambrósio CE. Morphology of male and female reproductive tract of the ocelot ( Leopardus pardalis). Anim Reprod 2020; 17:e20200010. [PMID: 32714460 PMCID: PMC7375876 DOI: 10.1590/1984-3143-ar2020-0010] [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] [Indexed: 12/02/2022] Open
Abstract
The Ocelot (Leopardus pardalis) is the largest species of this genus, despite having broad distribution in the Americas; it is included in the main list of endangered species. Their conservation is widely studied, but there is a lack of studies about their morphology. In order to contribute to the knowledge of its reproductive system, five male and female ocelots were examined macro- and microscopically by histological techniques. Macroscopic analysis of the male reproductive system revealed presence of prostate and bulbourethral gland located caudally to the urinary bladder and a penis with small spicules. Microscopically, the testes were encased by the tunica albuginea and divided it into lobules with 5-10 tubules per lobe. In females, macroscopic analysis demonstrated two ovaries position dorsally in the sublumbar region and caudal to the kidneys. The bicornuate uterus is composed by uterine horns (12 to 14 cm in length), which travels from the ovaries in a caudal direction to form a small uterine body (4 cm in length). The ovary analysis revealed, in longitudinal section, medullary region composed of loose connective tissue, a stroma rich in blood vessels, and an external parenchymal region surrounded by a tunica albuginea. The results of the study confirmed the similarity between ocelot's reproductive system as domestic cat's ones and showing for the first time the complete morphological tool to highlight these organs and tissue in this male and female endangered wild felid specie. The present study open venue for other researchers to consider morphological and preservationist features and aimed to help at long-term conservation of wild felines.
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Affiliation(s)
- Luciana Cristina Machado
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Jéssica Rodrigues Orlandin
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Rafael Garcia Karam
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Felipe Augusto Rós
- Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Daniele Dos Santos Martins
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Gerlane de Medeiros Costa
- Laboratório de Zoologia e Morfologia Animal, Universidade do Estado do Mato Grosso, Alta Floresta, MT, Brasil
| | - Carlos Eduardo Ambrósio
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
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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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Pereira MRDJ, Pinhatti VR, Silveira MDD, Matzenbacher CA, Freitas TROD, Silva JD, Camassola M, Nardi NB. Isolation and characterization of mesenchymal stem/stromal cells from Ctenomys minutus. Genet Mol Biol 2018; 41:870-877. [PMID: 30508008 PMCID: PMC6415614 DOI: 10.1590/1678-4685-gmb-2018-0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 03/23/2018] [Indexed: 11/22/2022] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) are multipotent cells distributed in all tissues and characterized by adherence, morphology, immunophenotype and trilineage differentiation potential. The present study aimed to isolate and characterize adherent MSC-like populations from different tissues of Ctenomys minutus, a threatened wildlife rodent popularly known as tuco-tuco. Adherent cells were isolated from bone marrow, brain, liver, pancreas and adipose tissue of three adult animals collect in southern Brazil. Cultures showed typical morphology and proliferation potential. Adipose-derived MSCs showed trilineage potential. Cultures derived from adipose tissue, bone marrow and brain were immunophenotyped with negative results for CD31, CD44, CD45, CD106, and MHC class II, as well as strong positive results for CD29. Low fluorescence levels were seen for CD49d, CD90.2 and CD117. Cultures were negative for CD49e, except for brain-derived cultures that were weakly positive. CD11b was negative in adipose-derived MSCs, but positive in brain and bone marrow-derived cultures. The scratch assay showed high migration potential for pancreas and adipose tissue-derived cells. This study represents the first report of isolation and characterization of cultures having characteristics of MSCs from Ctenomys minutus. The collection of biological information for biobanks represents an important contribution to the creation of strategies for prevention of loss of genetic diversity.
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Affiliation(s)
| | | | | | | | | | - Juliana da Silva
- Laboratory of Stem Cells and Tissue Engineering, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | - Melissa Camassola
- Laboratory of Stem Cells and Tissue Engineering, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | - Nance Beyer Nardi
- Laboratory of Stem Cells and Tissue Engineering, Universidade Luterana do Brasil, Canoas, RS, Brazil
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