Treatment of resistant human colon cancer xenografts by a fluoxetine-doxorubicin combination enhances therapeutic responses comparable to an aggressive bevacizumab regimen

被引:43
作者
Argov, Mirit [1 ]
Kashi, Rina [2 ]
Peer, Dan [1 ]
Margalit, Rimona [1 ]
机构
[1] Tel Aviv Univ, Dept Biochem, IL-69978 Tel Aviv, Israel
[2] Teva Pharmaceut Ind, Teva Innovat Ventures, Netanya, Israel
关键词
Multidrug resistance; P-glycoprotein; Fluoxetine; Bevacizumab; Colon cancer; Doxorubicin;
D O I
10.1016/j.canlet.2008.09.005
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Pre-clinical Studies Of multidrug resistance (MDR) usually address severe resistance, yet moderate MDR is already clinically-impeding. The purpose of this study was to characterize moderate drug resistance in human colon cancer, and it's modulation by fluoxetine. In vitro fluoxetine enhanced doxorubicin's cytotoxicity (10-fold), increased doxorubicin's intracellular accumulation (32%) and decreased efflux of intracellular doxorubicin (70%). In vivo, mild treatment with a doxorubicin-fluoxetine combination slowed-down tumor progression significantly (p < 0.001 vs. doxorubicin alone). comparable to aggressive treatment with bevacizumab. Collectively, Our results suggest that combinations of fluoxetine with chemotherapeutic drugs (P-glycoprotein substrates) are worthy of further pursuit for moderate MDR in the clinic. (c) 2008 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:118 / 123
页数:6
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