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Praxedes ÉA, Queiroz Neta LB, Borges AA, Silva MB, Santos MVO, Ribeiro LR, Silva HVR, Pereira AF. Quantitative and descriptive histological aspects of jaguar (
Panthera onca
Linnaeus, 1758) ear skin as a step towards formation of biobanks. Anat Histol Embryol 2019; 49:121-129. [DOI: 10.1111/ahe.12500] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/11/2019] [Accepted: 09/03/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Érika A. Praxedes
- Laboratory of Animal Biotechnology Federal Rural University of Semi‐Arid Mossoro Brazil
| | - Luiza B. Queiroz Neta
- Laboratory of Animal Biotechnology Federal Rural University of Semi‐Arid Mossoro Brazil
| | - Alana A. Borges
- Laboratory of Animal Biotechnology Federal Rural University of Semi‐Arid Mossoro Brazil
| | - Maria B. Silva
- Laboratory of Animal Biotechnology Federal Rural University of Semi‐Arid Mossoro Brazil
| | - Maria V. O. Santos
- Laboratory of Animal Biotechnology Federal Rural University of Semi‐Arid Mossoro Brazil
| | - Leandro R. Ribeiro
- Aba‐Yby Conservation Institute Environmental Park and Zoo Ecopoint Fortaleza Brazil
| | - Herlon V. R. Silva
- Laboratory of Reproduction of Carnivorous Ceara State University Fortaleza Brazil
| | - Alexsandra F. Pereira
- Laboratory of Animal Biotechnology Federal Rural University of Semi‐Arid Mossoro Brazil
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Potential role of intraspecific and interspecific cloning in the conservation of wild mammals. ZYGOTE 2019; 27:111-117. [DOI: 10.1017/s0967199419000170] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
SummaryIntraspecific and interspecific cloning via somatic cell nuclear transfer (iSCNT) is a biotechnique with great possibilities for wild mammals because it allows the maintenance of biodiversity by recovering species, nuclear reprogramming for the production of pluripotency-induced cells, and studies related to embryonic development. Nevertheless, many areas in cloning, especially those associated with wild mammals, are still in question because of the difficulty in obtaining cytoplasmic donor cells (or cytoplasts). Conversely, donor cell nuclei (or karyoplasts) are widely obtained from the skin of living or post-mortem individuals and often maintained in somatic cell banks. Moreover, the creation of karyoplast–cytoplast complexes by fusion followed by activation and embryo development is one of the most difficult steps that requires further clarification to avoid genetic failures. Although difficult, cloning different species, such as wild carnivores and ungulates, can be successful via iSCNT with embryo development and the birth of offspring. Thus, novel research in the area that contributes to the conservation of biodiversity and knowledge of the physiology of species continues. The present review presents the failures and successes that occurred with the application of the technique in wild mammals, with the goal of helping future work on cloning via iSCNT.
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Influence of storage time and nutrient medium on recovery of fibroblast-like cells from refrigerated collared peccary (Pecari tajacu Linnaeus, 1758) skin. In Vitro Cell Dev Biol Anim 2018; 54:486-495. [DOI: 10.1007/s11626-018-0270-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 05/28/2018] [Indexed: 10/28/2022]
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Borges AA, Neta LBQ, Santos MV, Oliveira MF, Silva AR, Pereira AF. Combination of ethylene glycol with sucrose increases survival rate after vitrification of somatic tissue of collared peccaries (Pecari tajacu Linnaeus, 1758). PESQUISA VETERINARIA BRASILEIRA 2018. [DOI: 10.1590/1678-5150-pvb-5193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ABSTRACT: The cryopreservation of somatic tissue in collared peccaries promotes an alternative source of genetic material of this specie. The solid-surface vitrification (SSV) is a great option for tissue conservation; nevertheless, the optimization of SSV requirements is necessary, especially when referred to cryoprotectants that will compose the vitrification solution. Therefore, the aim was to evaluate the effect of the presence of 0.25 M sucrose in addition to different combinations (only or association) and concentrations (1.5 M or 3.0 M) of ethylene glycol (EG) and/or dimethyl sulfoxide (DMSO) in the somatic tissue vitrification of collared peccaries. Subsequently, we tested six combinations of cryoprotectants with or without sucrose in Dulbecco modified Eagle medium (DMEM) plus 10% fetal bovine serum (FBS). Thus, 3.0 M EG with sucrose was able to maintain normal tissue characteristics compared with non-vitrified (control), especially for the volumetric ratio of epidermis (61.2 vs. 58.7%) and dermis (34.5 vs. 36.6%), number of fibroblast (90.3 vs. 127.0), argyrophilic nucleolar organizer region (AgNOR) ratio (0.09 vs. 0.17%) and nucleus area (15.4 vs. 14.5 μm2) respectively. In conclusion, 3.0 M EG with 0.25 M sucrose and 10% FBS resulted in a better cryoprotectant composition in the SSV for somatic tissue of collared peccaries.
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