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Global transcriptomic portrait of biofilm lifestyle in the clincial isolate of Candida glabrata

ABSTRACT: Global transcriptomic portrait of biofilm lifestyle in the clincial isolate of Candida glabrata

PROVIDER: PRJNA640406 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12047065_1.fastq.gz	Fastqsanger.gz
	SRR12047065_2.fastq.gz	Fastqsanger.gz
	SRR12047066_1.fastq.gz	Fastqsanger.gz
	SRR12047066_2.fastq.gz	Fastqsanger.gz
	SRR12047067_1.fastq.gz	Fastqsanger.gz

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Global transcriptomic portrait of biofilm lifestyle in the clincial isolate of Candida glabrata

Project description:Aim: of the study was to compare the transcriptomic profiling of planktonic and biofilm growth phase of clinical isolate of Candida glabrata Methodology: RNA was extracted using Hi-PurA yeast RNA purification kit from biofilm and planktonic growth phase and sequenced by Illumina Hi-Seq 2500 platform with 250bp paired chemistry Results: we got 959 significantly Differential Expressed Genes DEGs (logFC => 1.5) acconts for 18.11 % in which 596 (11.26 %) are getting downregulated and 363 (6.85%) upregulated in the biofilm growth mode. We validated 8 genes by qPCR Conclusion: Comprehensive analysis of the large expression gene sets generated from experimental conditions (Planktonic vs Biofilm) by RNA Seq revealed the unique network of genes associated with this intricate and complex process. We observed that Differentially Expressed Genes (DEGs) associated with Glyoxylate and Dicarboxylate metabolism, Carbon-Carbon lyase activity

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Biofilm matrix regulation by Candida glabrata Zap1 under acidic conditions: transcriptomic and proteomic analyses

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Limosilactobacillus fermentum Limits Candida glabrata Growth by Ergosterol Depletion

Project description:Candida glabrata is a human-associated opportunistic fungal pathogen. It shares its niche with Lactobacillus spp. in the gastrointestinal and vaginal tract. In fact, Lactobacillus species are thought to competitively prevent Candida overgrowth. We investigated the molecular aspects of this antifungal effect by analyzing the interaction of C. glabrata strains with Limosilactobacillus fermentum. From a collection of clinical C. glabrata isolates, we identified strains with different sensitivities to L. fermentum in coculture. We analyzed the variation of their expression pattern to isolate the specific response to L. fermentum. C. glabrata-L. fermentum coculture induced genes associated with ergosterol biosynthesis, weak acid stress, and drug/chemical stress. L. fermentum coculture depleted C. glabrata ergosterol. The reduction of ergosterol was dependent on the Lactobacillus species, even in coculture with different Candida species. We found a similar ergosterol-depleting effect with other lactobacillus strains (Lactobacillus crispatus and Lactobacillus rhamosus) on Candida albicans, Candida tropicalis, and Candida krusei. The addition of ergosterol improved C. glabrata growth in the coculture. Blocking ergosterol synthesis with fluconazole increased the susceptibility against L. fermentum, which was again mitigated by the addition of ergosterol. In accordance, a C. glabrata Derg11 mutant, defective in ergosterol biosynthesis, was highly sensitive to L. fermentum. In conclusion, our analysis indicates an unexpected direct function of ergosterol for C. glabrata proliferation in coculture with L. fermentum.

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