Genetic basis of Candida biofilm resistance due to drug-sequestering matrix glucan.
Genetic basis of Candida biofilm resistance due to drug-sequestering matrix glucan.
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DOI:
10.1086/651200
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发表时间:
2010-07-01
期刊:
影响因子:
--
通讯作者:
Andes DR
中科院分区:
文献类型:
--
作者:
Nett JE;Sanchez H;Cain MT;Andes DR
Medical devices provide an ecological niche for microbes to flourish as a biofilm community, protected from antimicrobials and host defenses. Biofilms formed by Candida albicans, the most common fungal pathogen, survive exposure to extraordinary high drug concentrations. Here we show β-glucan synthase Fks1p produces glucan which is deposited in the biofilm matrix. The extracellular glucan is required for biofilm resistance and acts by sequestering antifungals, rendering cells resistant to their action. These findings provide the genetic basis for how biofilm matrix production governs drug resistance by impeding drug diffusion and identify a useful biofilm drug target.
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