首页> 外文期刊>Cell biology international. >COLCHICINE-RESISTANCE AND ENHANCEMENT OF P-GLYCOPROTEIN ACTIVITY AFTER CO-CULTIVATION OF DRUG-SENSITIVE CELLS WITH MULTIDRUG RESISTANT VARIANTS
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COLCHICINE-RESISTANCE AND ENHANCEMENT OF P-GLYCOPROTEIN ACTIVITY AFTER CO-CULTIVATION OF DRUG-SENSITIVE CELLS WITH MULTIDRUG RESISTANT VARIANTS

机译:药物敏感细胞与多药耐药变种共培养后的耐多药耐药性和对P-糖蛋白活性的增强

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摘要

The role of cellular interactions in the resistance of Djungurian hamster cells to colchicine (CH) and in the efficiency of P-glycoprotein function was studied. Mixtures of CH-resistant and CH-sensitive cells as well as control unmixed cells were propagated for 3 days and the sensitivity of the cells to CH was measured by colony forming assay. identification of individual subpopulations was possible due to genetic marker (6TG-resistance). The data show that the survival of CH-sensitive cells in CH-supplemented medium increased after cocultivation with CH-resistant counterparts. To measure Pgp activity the fluorescent dye RH123 and FACScan analysis were used. Pgp-mediated RH123 efflux increased after co-cultivation of CH-sensitive and CH-resistant cells.
机译:研究了细胞相互作用在Djungurian仓鼠细胞对秋水仙碱(CH)的抗性和P-糖蛋白功能效率中的作用。 CH抗性和CH敏感性细胞以及对照未混合细胞的混合物繁殖3天,并通过集落形成测定法测量细胞对CH的敏感性。归因于遗传标记(6TG抗性),有可能鉴定单个亚群。数据显示,与CH抗性对应物共同培养后,CH敏感培养基中CH敏感细胞的存活率增加。为了测量Pgp活性,使用了荧光染料RH123和FACScan分析。在CH敏感和CH抵抗细胞共同培养后,Pgp介导的RH123外排增加。

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