996 resultados para células HmLu-1


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Odontologia Restauradora - ICT

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Transmissible venereal tumor (TVT) is a neoplasia that develops naturally in dogs. It can be easily transplanted, which demonstrates its ability to spread from animal to animal. Since the Linr-1/c-MYC rearrangement in TVT cells had not been studied at the Veterinary Hospital of the Veterinary School, Unesp in Botucatu, SP, this study aimed to detect this genetic alteration specific to this kind of tumor by means of the polymerase chain reaction (PCR). Twenty dogs with cytological diagnosis of TVT were used. Samples of neoplastic cells were collected to determine the presence of the Line-1/c-MYC marker. The rearrangement characterized by 340bp amplicons did not vary, in agreement with previous studies using the same methodology. This contributed to a more precise identification of persistent tumor cells in cases in which gross or microscopical detection was not possible.

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Transmissible venereal tumor (TVT) is a neoplasm of round cells with plasmocytoid or lymphocytoid appearance. The tumor presents several particularities, which have been the subject of numerous studies; however there still have investigations that need to be done. For example, a progressive increase of highly aggressive tumors with varying response to chemotherapy -including resistance- has been evidenced in recent years. There is scientific interest to understand these differences, allowing predicting possible clinical outcomes in affected dogs and increasingly searching adequate and individualized therapy. This review focuses on presenting possible implications of the expression of MDR-1 (P-glycoprotein), TP53, BCL-2, and BAX genes, regarding resistance to chemotherapy and/or the biologic behavior of TVT

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)