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RNA-sequencing analysis of pro-inflammatory cytokine stimulation of HMC3 microglia and HOG oligodendroglioma cell lines

ABSTRACT: Here we have stimulated human fetal microglia HMC3 cells and human oligodendroglioma HOG cells with LPS for 24 hours and subsequently with a combination of TNFα and IL-1β for 24 hours , and analyzed their transcriptome-wide response to compare the responsivity of the two cell lines to the pro-inflammatory stimuli.

ORGANISM(S): Homo sapiens

PROVIDER: GSE200354 | GEO | 2022/05/02

REPOSITORIES: GEO

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Project description:The ability to sense and adapt to a hostile host environment is a crucial element for virulence of pathogenic fungi, including Cryptococcus neoformans. These cellular responses are evoked by diverse signaling cascades, including the stress-activated HOG pathway. Despite previous analysis of central components of the HOG pathway, its downstream signaling network is poorly characterized in C. neoformans. Here we performed comparative transcriptome analysis with HOG signaling mutants to explore stress-regulated genes and their correlation with the HOG pathway in C. neoformans. In this study we not only provide important insights into remodeling patterns of global gene expression for counteracting external stresses, but also elucidated novel characteristics of the HOG pathway in C. neoformans. First, inhibition of the HOG pathway increases expression of ergosterol biosynthesis genes and cellular ergosterol content, conferring a striking synergistic antifungal activity with amphotericin B and providing an excellent opportunity to develop a novel therapeutic method for treatment of cryptococcosis. Second, a number of cadmium-sensitive genes are differentially regulated by the HOG pathway, and their mutation causes resistance to cadmium. Finally, we have discovered novel stress-defense and HOG-dependent genes, which encodes a sodium/potassium efflux pump, protein kinase, multidrug transporter system, and elements of the ubiquitin-dependent system. There is more than 95% genome homology between JEC21 (Cryptococcus neoformans var. neoformans serotype D) and H99 (Cryptococcus neoformans var. grubii serotype A). Therefore, 100 slides of JEC21 70-mer oligo arrays are used in this analysis. 3 biological replicate experiments are performed. Total RNAs are extracted under 3 conditions (1M NaCl, 20ug/ul Fludioxonil, 2.5mM Hydrogen peroxide) at 3 time points (0time, 30min, 60min) with 4 strains from H99 (wild type, hog1Î , ssk1Î , skn7Î). We use a mix of all the total RNAs from this experiment as the control RNA. We use Cy5 as the sample dye and Cy3 as the control dye. Several samples are dye swapped.

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RNA-sequencing analysis of pro-inflammatory cytokine stimulation of HMC3 microglia and HOG oligodendroglioma cell lines

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