Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of mouse naive CD4+CD25-CD62Lhi T cells and nTreg cells with Eos knock-down


ABSTRACT: Eos expression in Treg cells have been documented by several microarrays including ours. We hypothesized that Eos facilitates Foxp3- dependent gene repression in Regulatory T cells. In order to investigate the role of Eos in mediating the Foxp3-dependent gene silencing program, we utilized lentiviral shRNA knockdown of Eos in natural Tregs isolated from the periphery of Balb/C mice. A renilla luciferase (RL) gene specific shRNA lentivirus was used as a control for the transduction of cells. The transcriptional profile of naive T cells, natural Tregs, Eos knockdown Tregs, and control shRNA knockdown Tregs was compared using Agilent 4x 44K whole mouse genome array. The goal of this microarray is to document the global effect of the loss of Eos expression on the transcriptional profile of natrual Treg cells. Experiment Overall Design: Eos knock-down (si-Eos) was mediated by Lentivirus expressing GFP as a reporter of transduction and sorting marker. Renilla luciferase specific shRNA lentiviral transduction was carried out in parallel as a control. Naïve (CD4+CD25-CD62Lhi) T cells and nTreg cells were freshly isolated from Balb/C mice.

ORGANISM(S): Mus musculus

SUBMITTER: Fan Pan 

PROVIDER: E-GEOD-17166 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications


CD4+ regulatory T cells (Tregs) maintain immunological self-tolerance and immune homeostasis by suppressing aberrant or excessive immune responses. The core genetic program of Tregs and their ability to suppress pathologic immune responses depends on the transcription factor Foxp3. Despite progress in understanding mechanisms of Foxp3-dependent gene activation, the molecular mechanism of Foxp3-dependent gene repression remains largely unknown. We identified Eos, a zinc-finger transcription facto  ...[more]

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