Drug:H+ antiporters in chemical stress response in yeast

被引:112
作者
Sa-Correia, Isabel [1 ]
dos Santos, Sandra C. [1 ]
Teixeira, Miguel C. [1 ]
Cabrito, Tania R. [1 ]
Mira, Nuno P. [1 ]
机构
[1] Univ Tecn Lisboa, Ctr Biol & Chem Engn, Inst Biotechnol & Bioengn, Inst Super Tecn, P-1049001 Lisbon, Portugal
关键词
MAJOR FACILITATOR SUPERFAMILY; MULTIDRUG-RESISTANCE TRANSPORTER; PLASMA-MEMBRANE TRANSPORTER; NATURAL TOXIC COMPOUNDS; SACCHAROMYCES-CEREVISIAE ADAPTATION; TRANSCRIPTION FACTOR; VACUOLAR MEMBRANE; COMPLETE GENOME; FLR1; GENE; IDENTIFICATION;
D O I
10.1016/j.tim.2008.09.007
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The emergence of widespread multidrug resistance (MDR) is a serious challenge for therapeutics, food-preservation and crop protection. Frequently, MDR is a result of the action of drug-efflux pumps, which are able to catalyze the extrusion of unrelated chemical compounds. This review summarizes the current knowledge on the Saccharomyces cerevisiae drug:H+ antiporters of the major facilitator superfamily (MFS), a group of MDR transporters that is still characterized poorly in eukaryotes. Particular focus is given here to the physiological role and expression regulation of these transporters, while we provide a unified view of new data emerging from functional genomics approaches. Although traditionally described as drug pumps, evidence reviewed here corroborates the hypothesis that several MFS-MDR transporters might have a natural substrate and that drug transport might occur only fortuitously or opportunistically. Their role in MDR might even result from the transport of endogenous metabolites that affect the partition of cytotoxic compounds indirectly. Finally, the extrapolation of the gathered knowledge on the MDR phenomenon in yeast to pathogenic fungi and higher eukaryotes is discussed.
引用
收藏
页码:22 / 31
页数:10
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