Genomics

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FOXP3 binding sites in promoter regions of human Jurkat T cells


ABSTRACT: The transcription factor (TF) Forkhead Box P3 (FOXP3) is constitutively expressed in high levels in natural occurring CD4+CD25+ regulatory T cells (nTreg) and is not only the most accepted marker for that cell population, but is considered lineage determinative. Chromatin immunoprecipitation (ChIP) of transcription factors in combination with genomic tiling microarray analysis (ChIP-on-Chip) has been shown to be an appropriate tool to identify FOXP3 transcription factor binding sites (TFBS) on a genome-wide scale. In combination with microarray expression analysis the ChIP-on-Chip technique allows to identify direct FOXP3 target genes. ChIP-on-Chip analysis of human FOXP3Δ2 isoform expressed in resting and PMA / ionomycin stimulated Jurkat T cells revealed several thousand putative FOXP3 binding sites and importance of intronic regions for FOXP3 binding. Knowledge of general distribution patterns of FOXP3 TFBS in the human genome under resting and activated conditions contributes to a better understanding of this TF and its influence on direct target genes with importance for Treg cell phenotype and function.

ORGANISM(S): Homo sapiens

PROVIDER: GSE37252 | GEO | 2012/11/26

SECONDARY ACCESSION(S): PRJNA159257

REPOSITORIES: GEO

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