XIST como modulador da resistência à quimioterapia em cânceres
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Resumo
Objetivo: O presente estudo buscou sumarizar as principais evidências que destacam o XIST como modulador da resistência à quimioterapia em diferentes tipos tumorais. Métodos: Para tanto, foi realizado levantamento bibliográfico, selecionando estudos que correlacionam XIST com a resistência a drogas antineoplásicas. Utilizou-se ferramentas bioinformáticas, incluindo NcPathName para identificar genes alvo e a plataforma CIViC para associar esses genes com a quimiorresistência, o papel de XIST foi investigado em diferentes tipos de câncer. Resultados: XIST regula genes associados à resistência quimioterápica, como PTEN, CDKN1A, CFLAR, MDM2 e ZEB1, envolvidos em vias essenciais de quimiorresistência. A interação entre XIST e esses genes sugere mecanismos moleculares específicos por trás da resistência a agentes como o 5-fluorouracil, no câncer colorretal. A literatura sugere que o knockdown de XIST pode ser uma estratégia promissora para superar a resistência à quimioterapia. Considerações finais: Este estudo evidencia a importância de explorar lncRNAs como XIST para entender melhor os mecanismos de resistência à quimioterapia e desenvolver abordagens terapêuticas mais eficazes.
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