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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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The effect of IFNα on human CD8 T cells_with other concomitant signals

ABSTRACT: IFN alpha mediated gene expression pattern. The effect of IFN alpha on human CD8 T cells responding to antigen (signal 1) and costimulatory signals (signal 2) provided by beads coated with anti-CD3 and anti-CD28 mAbs. This analysis examined the effects of IFN alpha on human CD8 T cells responding to antigen (signal 1) and costimulatory signals (signal 2) provided by beads coated with anti-CD3 and anti-CD28 mAbs. Magnetically sorted untouched CD8+CD45R0- T cells from three different donors were unstimulated or stimulated with IFNa2b or with anti-CD3/CD28 Beads alone or along with IFNa2b or IFNa5 for 48 hours. Individual mRNA samples were analyzed using HG-U133A 2.0 array gene chips. Keywords: Gene expression analysis after different stimulation Magnetically sorted untouched CD8+CD45R0-T cells from three different donors (named A, B and C) unstimulated or stimulated with IFN alpha 2b or with anti-CD3/CD28 beads alone or along with IFN alpha 2b or IFN alpha 5 for 48 hours.

ORGANISM(S): Homo sapiens

SUBMITTER: Iranzu Gonzalez

PROVIDER: E-GEOD-17301 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The effect of IFNα on human CD8 T cells_with other concomitant signals

Project description:IFN alpha mediated gene expression pattern. The effect of IFN alpha on human CD8 T cells responding to antigen (signal 1) and costimulatory signals (signal 2) provided by beads coated with anti-CD3 and anti-CD28 mAbs. This analysis examined the effects of IFN alpha on human CD8 T cells responding to antigen (signal 1) and costimulatory signals (signal 2) provided by beads coated with anti-CD3 and anti-CD28 mAbs. Magnetically sorted untouched CD8+CD45R0- T cells from three different donors were unstimulated or stimulated with IFNa2b or with anti-CD3/CD28 Beads alone or along with IFNa2b or IFNa5 for 48 hours. Individual mRNA samples were analyzed using HG-U133A 2.0 array gene chips. Keywords: Gene expression analysis after different stimulation

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Project description:IFNα-mediated gene expression pattern. Direct effects of IFNα on human CD8 T cells without any other concomitant signal. This analysis examined the direct effects of IFNa on human CD8 T cells without any other concomitant signal. Total human CD8 T cells were magnetically sorted from peripheral blood by negative selection. In order to minimize the presence of antigen-experienced cells, total human CD8 T cells were depleted of CD45RO+ cells by labelling with anti-CD45RO magnetic bead. In both steps of cellular sorting, negative selection were preferred to positive selection to avoid direct labelling of CD8 T cell surface molecules could interfere with downstream IFNa-mediated signalling. Magnetically sorted untouched human CD8+CD45R0- T cells from three different donors were unstimulated or stimulated with IFNa2b or IFNa5 and cells were harvested 7 hours later. mRNAs from the 3 subjects were pooled and analyzed using Affymetrix human HG-U133A 2.0 array gene chips Fold-change ≥ 2 criterion was used to identify genes which expression differed between treatment and control (unstimulated cells). Keywords: Gene expression pattern analysis Magnetically sorted untouched CD8+CD45R0-T cells mRNA pooled sample from three different donors unstimulated or stimulated with IFN alfa 2b or IFN alfa 5 for 7 hours.

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