Transcriptomics

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Transcriptional profiling and comparative genomic analysis of an invasive and non-invasive strain of Candida albicans


ABSTRACT: Invasion of host tissue by the human fungal pathogen, Candida albicans is an important step during many forms of candidosis. However, not all C. albicans strains possess the same invasive and virulence properties. It is known for example that the two clinical isolates SC5314 and ATCC10231 differ in their ability to invade into host tissue and to cause infections. Strain SC5314 is invasive whereas strain ATCC10231 is non-invasive and strongly attenuated in virulence as compared to SC5314. In this study we compare the in vitro transcriptional profiles and the genotypic profiles of these two widely used laboratory strains in order to determine the principal biological and genetic properties which may govern the different potential for invasiveness and virulence. Keywords: transcriptional profiling, comparative genomic hybridisation, invasive vs. non-invasive C. albicans strain Genomic DNA from C. albicans strains SC5314 and ATCC10231 hybridisations were done in duplicate including one dye swap. Total RNA from C. albicans strains SC5314 and ATCC10231 strains were compared in triplicate including one biological replicate and one dye swap.

ORGANISM(S): Candida albicans  

SUBMITTER: Gary P Moran   Bernhard Hube   Derek J Sullivan  Sascha Thewes 

PROVIDER: E-GEOD-10689 | ArrayExpress | 2010-05-26

SECONDARY ACCESSION(S): GSE10689PRJNA107679

REPOSITORIES: GEO, ArrayExpress

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Publications

In vivo and ex vivo comparative transcriptional profiling of invasive and non-invasive Candida albicans isolates identifies genes associated with tissue invasion.

Thewes Sascha S   Kretschmar Marianne M   Park Hyunsook H   Schaller Martin M   Filler Scott G SG   Hube Bernhard B  

Molecular microbiology 20070301 6


The human pathogenic fungus Candida albicans can cause a wide range of infections and invade multiple organs. To identify C. albicans genes that are expressed during invasion of the liver, we used genome-wide transcriptional profiling in vivo and ex vivo. By analysing the different phases of intraperitoneal infection from attachment to tissue penetration in a time-course experiment and by comparing the profiles of an invasive with those of a non-invasive strain, we identified genes and transcrip  ...[more]

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