Pomolic acid may overcome multidrug resistance mediated by overexpression of anti-apoptotic Bcl-2 proteins

被引:25
作者
Fernandes, Janaina
Weinlich, Ricardo
Castilho, Rachel Oliveira
Amarante-Mendes, Gustavo Pessini
Gattass, Cerli Rocha [1 ]
机构
[1] Univ Fed Rio de Janeiro, Lab Imunoparasitol, Inst Biofis Carlos Chagas Filho, Ctr Ciencias Saude,Bloco G,Cidade Univ, BR-21949900 Rio De Janeiro, Brazil
[2] Univ Sao Paulo, Inst Biomed Sci, Dept Immunol, BR-05508900 Sao Paulo, Brazil
[3] Univ Sao Paulo, Millenium Inst, Inst Invest Immunol, BR-05508900 Sao Paulo, Brazil
[4] Univ Catolica Dom Bosco, BR-79117900 Campo Grande, MS, Brazil
基金
巴西圣保罗研究基金会;
关键词
pomolic acid; MDR; anti-apoptotic proteins; Bcl-2 and Bcl-xL; leukemia; apoptosis;
D O I
10.1016/j.canlet.2006.01.009
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Multidrug resistance (MDR) is multifactorial and may be mediated by overexpression of anti-apoptotic proteins. This paper investigated whether pomolic acid (PA) was able to overcome resistance mediated by overexpression of Bcl-2 or BcL-xL. The results obtained showed that overexpression of these proteins partially inhibited the PA-induced apoptosis, loss of mitochondrial membrane potential and caspase -3 and -9 activation observed in HL-60/neo. Since Bcl-2 transfected cell lines were shown to be quite resistant to a series of chemotherapeutic agents, the data presented call attention to the possible clinical significance of PA as an anti-MDR drug. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:315 / 320
页数:6
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