Inhibition of MDR1 activity and induction of apoptosis by analogues of nifedipine and diltiazem: an in vitro analysis
作者:Maurizio Viale、Cinzia Cordazzo、Daniela de Totero、Roberta Budriesi、Camillo Rosano、Alberto Leoni、Pierfranco Ioan、Cinzia Aiello、Michela Croce、Aldo Andreani、Mirella Rambaldi、Patrizia Russo、Alberto Chiarini、Domenico Spinelli
DOI:10.1007/s10637-009-9340-7
日期:2011.2
fluorescein isothiocyanate (FITC)-Annexin-V/propidium iodide (PI) staining and the caspase activity determination. Our results demonstrate that compounds 1 and 2, at concentrations showing a very low (5%) or absent inhibition of cell proliferation, in combination with doxorubicin enhance its antiproliferative activity (from 30% to 54% IC(50) reduction) in A2780/DX3 cells through an increase of doxorubicin
我们在此报告了两种硝苯地平类化合物 1 和 2 在 A2780/DX3 细胞中逆转多药耐药性 1 (MDR1),它们是 1,4-二氢吡啶 (1,4-DHPs) 钙通道库的一部分在 C-4 中带有不同取代的咪唑并 [2,1-b] 噻唑系统的调节剂。通过甲基噻唑四唑 (MTT) 测定、细胞荧光法和荧光显微镜,我们评估了它们在我们的细胞系统中逆转 MDR 的能力。此外,连同化合物3(地尔硫卓样8-(4-氯苯基)-5-甲基-8-[(2Z)-pent-2-en-1-yloxy]-8H-[1,2,4] oxadiazolo[3,4-c][1,4]thiazin-3-one) 我们通过 4',6-二脒基-2-苯基吲哚后的核形态分析,分析了它们在暴露于多柔比星后增强触发细胞凋亡的能力(DAPI), 异硫氰酸荧光素 (FITC)-膜联蛋白-V/碘化丙啶 (PI) 染色和半胱天冬酶活性测定。我们的结果表明,化合物