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- W2007197843 abstract "Abstract Background Fluconazole (FLC), a triazole antifungal drug, is widely used for the maintenance therapy of cryptococcal meningoencephalitis, the most common opportunistic infection in AIDS patients. In this study, we examined changes in the gene expression profile of the C. neoformans reference strain H99 (serotype A) following FLC treatment in order to investigate the adaptive cellular responses to drug stress. Results Simultaneous analysis of over 6823 transcripts revealed that 476 genes were responsive to FLC. As expected up-regulation of genes involved in ergosterol biosynthesis was observed, including the azole target gene ERG11 and ERG13 , ERG1 , ERG7 , ERG25 , ERG2 , ERG3 and ERG5 . In addition, SRE1 which is a gene encoding a well-known regulator of sterol homeostasis in C. neoformans was up-regulated. Several other genes such as those involved in a variety of important cellular processes (i.e. lipid and fatty acid metabolism, cell wall maintenance, stress and virulence) were found to be up-regulated in response to FLC treatment. Conversely, expression of AFR1 , the major transporter of azoles in C. neoformans , was not regulated by FLC. Conclusions Short-term exposure of C. neoformans to FLC resulted in a complex altered gene expression profile. Some of the observed changes could represent specific adaptive responses to the antifungal agent in this pathogenic yeast." @default.
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- W2007197843 date "2011-05-11" @default.
- W2007197843 modified "2023-10-02" @default.
- W2007197843 title "Genome-wide expression profiling of the response to short-term exposure to fluconazole in Cryptococcus neoformans serotype A" @default.
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- W2007197843 doi "https://doi.org/10.1186/1471-2180-11-97" @default.
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