Employment of electrochemotherapy in canine neoplasms of epithelial or mesenchymal origin located in the skin or mucosal membranes

Electrochemotherapy is characterized as a protocol which combines the use of antineoplastic agents with localized application of electric pulses to improve the intracellular concentration of these agents, increasing, thus, its cytotoxic action. Bleomycin, an antibiotic agent with antineoplastic prop...

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Detalles Bibliográficos
Autores: Silveira, Lucia Maria Guedes, Brunner, Carlos Henrique Maciel, Cunha, Fernando Malagutti, Futema, Fabio, Calderaro, Franco Ferraro, Kozlowski, Didio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Brasil
Institución:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
Repositorio:Brazilian Journal of Veterinary Research and Animal Science
Idioma:portugués
OAI Identifier:oai:revistas.usp.br:article/26849
Acceso en línea:https://www.revistas.usp.br/bjvras/article/view/26849
Access Level:acceso abierto
Palabra clave:Cão
Neoplasia
Eletroporação
Eletroquimioterapia
Dog
Electroporation
Electrochemotherapy
Descripción
Sumario:Electrochemotherapy is characterized as a protocol which combines the use of antineoplastic agents with localized application of electric pulses to improve the intracellular concentration of these agents, increasing, thus, its cytotoxic action. Bleomycin, an antibiotic agent with antineoplastic properties, is a hydrophilic molecule, having a restricted transport through the cellular membrane. However, when it is administered intralesionally or intravenously and associated to electroporation, its cytotoxicity is maximized. In this study 34 dogs were utilized and they were affected by a single lesion of epithelial or mesenchymal origin, located in the skin or mucosal membranes. The electrochemotherapy protocol was standardized using intralesional bleomycin sulfate at a dose of 1 U/cm³ of tumoral area. Electroporation was performed using an electrode composed of needles and electric pulses with a 1000 V voltage, in unipolar square wave and 100 microseconds duration, totalizing eight cycles. There was complete neoplastic remission in 30 dogs (88.3%) and refractoriness to the protocol in four animals (11.7%). There were no complications or side effects associated with the procedure. The protocol studied in this work showed to be feasible, effective and safe for antineoplastic therapy in dogs.