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Revista Brasileira de Cancerologia
Article . 2018 . Peer-reviewed
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Revista Brasileira de Cancerologia
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Efeito Antiproliferativo do Zoledronato em Linhagens Celulares Tumorais

Authors: Zago, Patricia Maria Wiziack; Fontes, Valéria Costa; Branco, Simeone Julio dos Santos Castelo; de Farias, Rayse Rayane Lima; Hass, Viviane; Ruiz, Ana Lúcia Tasca Gois; Foglio, Mary Ann;

Efeito Antiproliferativo do Zoledronato em Linhagens Celulares Tumorais

Abstract

Introdução: Bisfosfonatos são fármacos utilizados para o tratamento de enfermidades ósseas, como a osteoporose e metástases ósseas, em razão do seu mecanismo de ação, que consiste na diminuição do processo de reabsorção do osso. Outros estudos verificaram que bisfosfonatos de alta potência, como o zoledronato, poderiam auxiliar no tratamento de outras enfermidades malignas por causa da promoção de um efeito antiproliferativo. Objetivo: Este estudo in vitro objetivou avaliar a atividade antiproliferativa de zoledronato em diferentes linhagens de células tumorais. Método: Nove linhagens humanas (U251; MCF7; NCI/ADR-RES; 786-0; NCI-H460; PC-3; OVCAR-3; HT29; K-562 e HaCaT) foram submetidas ao tratamento com as concentrações de 0,12; 1,2; 12 e 120 μM de zoledronato e tiveram sua atividade proliferativa avaliada após 48 horas, utilizando-se o corante sulforrodamina B. Resultados: Verificou-se que as concentrações de 12 μM e 120 μM de zoledronato foram eficazes para a redução em 50% e 100%, respectivamente, da proliferação das células 786-0 (carcinoma renal). A maior concentração de zoledronato (120 μM) promoveu um efeito citostático (redução da proliferação celular em 50%) para as células HaCaT (queratinócito humano não tumoral), HT-29 (carcinoma de cólon), NCI-ADR/ RES (adenocarcinoma de ovário com fenótipo de multirresistência) e NCI-H460 (carcinoma pulmonar). Conclusão: Esses resultados sugerem um promissor efeito auxiliar do zoledronato para o tratamento de alguns tipos de tumores; estudos complementares in vitro e in vivo são necessários para a validação dessa hipótese.

Keywords

Bisfosfonatos, Células Neoplásicas Circulantes;, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, Proliferação Celular., RC254-282

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citations
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).
BIP!Citations provided by BIP!
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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