Molecular mechanisms of azole resistance in Candida bloodstream isolates
نویسندگان
چکیده
منابع مشابه
Proteomic analysis of azole resistance in Candida albicans clinical isolates.
Changes in protein expression within a matched set of Candida albicans isolates representing the acquisition of azole resistance were examined by two-dimensional polyacrylamide gel electrophoresis and peptide mass fingerprinting. Proteins differentially expressed in association with azole resistance included Grp2p, Ifd1p, Ifd4p, Ifd5p, and Erg10p, a protein involved in the ergosterol biosynthes...
متن کاملMechanisms of azole resistance in 52 clinical isolates of Candida tropicalis in China.
OBJECTIVES To explore the mechanisms underlying azole resistance in clinical isolates of Candida tropicalis collected in China by focusing on their efflux pumps, respiratory status and azole antifungal target enzyme. METHODS Fifty-two clinical isolates of C. tropicalis were collected from five hospitals in four provinces of China and antifungal susceptibility tests were performed. Rhodamine 6...
متن کاملGenotypic evolution of azole resistance mechanisms in sequential Candida albicans isolates.
TAC1 (for transcriptional activator of CDR genes) is critical for the upregulation of the ABC transporters CDR1 and CDR2, which mediate azole resistance in Candida albicans. While a wild-type TAC1 allele drives high expression of CDR1/2 in response to inducers, we showed previously that TAC1 can be hyperactive by a gain-of-function (GOF) point mutation responsible for constitutive high expressi...
متن کاملMechanisms of azole resistance in petite mutants of Candida glabrata.
We previously showed that resistant colonies of Candida glabrata inside the azole inhibition zones had respiratory deficiency due to mutations in mitochondrial DNA. Here, we analyzed the mechanisms of azole resistance in petite mutants of C. glabrata obtained by exposure to fluconazole or induced by ethidium bromide. The respiratory deficiency of these mutants was confirmed by oxygraphy and flo...
متن کاملChanges in karyotype and azole susceptibility of sequential bloodstream isolates from patients with Candida glabrata candidemia.
We examined the changes in genotypes and azole susceptibilities among sequential bloodstream isolates of Candida glabrata during the course of fungemia and the relationship of these changes to antifungal therapy. Forty-one isolates were obtained from 15 patients (9 patients who received antifungal therapy and 6 patients who did not) over periods of up to 36 days. The isolates were analyzed usin...
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ژورنال
عنوان ژورنال: BMC Infectious Diseases
سال: 2019
ISSN: 1471-2334
DOI: 10.1186/s12879-019-3672-5