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Intra-macrophage Expression data of Francisella tularensis novicida U112

ABSTRACT: These samples are part of an experiment comparing the expression profiles of Francisella tularensis novicida grown in chemically defined medium and bacteria isolated 24 hours post infection of J774 macrophages to identify virulence factors

ORGANISM(S): Francisella Francisella tularensis subsp. novicida U112

PROVIDER: GSE75689 | GEO | 2017/05/02

SECONDARY ACCESSION(S): PRJNA305059

REPOSITORIES: GEO

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Intra-macrophage Expression data of Francisella tularensis novicida U112

Project description:These samples are part of an experiment comparing the expression profiles of Francisella tularensis novicida grown in chemically defined medium and bacteria isolated 24 hours post infection of J774 macrophages to identify virulence factors Custom microarray submitted previously was used as the platform (GPL20119). The samples submitted here were compared with samples submitted previously (GSM1673555-57 in GSE68478) and differentially expressed genes during the intra-macrophage growth were identified.

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Project description:Differential expression in human peripheral blood monocytes between F. novicida-infected and uninfected, and between Francisella tularensis tularensis isolate Schu S4 and uninfected. The goal was to examine genomewide transcriptional reponses to these two strains, and identify differentially-regulated genes that may help explain the virulence of Schu S4. Experiment Overall Design: Human monocytes were infected with the Schu S4 isolate of Francisella tularensis tularensis (n=4), with F. tularensis subspecies novicida isolate U112 (n=4) or were left uninfected (n=6). Gene expression values were calculated using the gcrma package in R and BioConductor, and limma to identify differentially expressed genes. Submitted here are expression values calculated using R 2.7.1 and BioConductor 2.2 (FreeBSD/amd64) but the original were done using R 2.6.1 and BioConductor 2.1 (FreeBSD/amd64). Twelve other chips were pooled with these 14 for preprocessing.

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