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Screening in vitro da actividade do taxol em linhagens celulares de cancro de cabeça e pescoço

Authors: Domingos, Célia;

Screening in vitro da actividade do taxol em linhagens celulares de cancro de cabeça e pescoço

Abstract

O Taxol é um agente antimicrotúbulo, que promove e estabiliza a formação de polímeros de tubulina, resultando na inibição da reorganização dinâmica normal da rede de microtúbulos, necessária para as funções celulares mitóticas. Esta droga é amplamente utilizada para o tratamento de cancro de cabeça e pescoço de células escamosas (CCECP) e está disponível em três formas farmacêuticas, denominadas de medicamentos referência, genéricos e similares. O objetivo do presente estudo foi avaliar os efeitos das formas de genérico e similar do Taxol sobre a proliferação de células CCECP. Os resultados indicaram que ambas formas farmacêuticas, genérico e similar do Taxol tiveram efeitos comparáveis sobre a proliferação celular e apoptose Embora o Taxol seja um dos agentes quimioterápicos mais utilizados, o seu efeito tem uma variabilidade interindividual. Portanto, é importante identificar biomarcadores úteis para previsão da resposta a essa droga. As linhagens celulares constituem um bom modelo para avaliação do papel de quimioterápicos na secreção de fatores relacionados com a resposta terapêutica. Esses fatores podem incluir enzimas, citocinas, hormonas e outros mediadores solúveis, fundamentais para os processos de crescimento e diferenciação celulares, senescência, apoptose, angiogénese, invasão e metástase. Neste trabalho avaliou-se o efeito de metabolitos e proteínas produzidas pela influência do tratamento com Taxol, no microambiente do tumor, embora os resultados não sejam suficientemente conclusivos, parece que ocorrem alterações relacionadas com desenvolvimento e progressão tumoral.

Country
Portugal
Related Organizations
Keywords

Quimioterapia, Biotecnologia, Cancro

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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