Project description:The aim of the project is to determine the binding sites of Ikaros in CD4+ T cells. To perform this, CD4 naive T cells (CD4 TN; d0) either rested or activated with anti-CD3+anti-CD28 Abs for 1 day (Th0 d1) were subjected to a ChIP using anti-Ikaros Ab followed by high throughput sequencing.
Project description:We found by microarray analysis that Ikaros is critical to limit the expression of several pro-inflammatory genes during Th17 cell polarization. To unravel the role of Ikaros in the expression of pro-inflammatory genes without Th17 polarizing cytokines, we performed an RNA-seq analysis in naive CD4+ T cells and CD4+ T cells activated with anti-CD3+anti-CD28 antibodies (Th0 condition), from WT (Ikaros f/f CD4-Cre-) and Ikaros TKO mice (Ikaros f/f CD4-Cre+).
Project description:We found that Ikaros is critical to limit the expression of pro-inflammatory cytokines in TCR/CD28-activated CD4+ T cells. To understand if Ikaros could modify the chromatin accessibility in regions controling the expression of these pro-inflammatory genes, we examined the chromatin state in naive CD4+ T cells and CD4+ T cells activated with anti-CD3+anti-CD28 antibodies for 1 and 2 days, from WT (Ikaros f/f CD4-Cre-) and Ikaros TKO mice (Ikaros f/f CD4-Cre+), using the ATAC-seq approach.
Project description:naive CD4+ T cell Th0 effector resting intact mnase For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf
Project description:RNA sequencing of the chromatin associated RNA and nucleoplasm associated RNA of Naive CD4+ T cells to identify novel chromatin associated RNAs containing TEs. RNA sequencing of Naive CD4+ T cells or Activated Naive CD4+ T cells treated with Scr or LINE1 antisense oligonucleotides (ASO).
Project description:We found that CD4+ T cells require Ikaros to promote IL-17 production when cultured in Th17 conditions. To understand why Ikaros null T cells do not produce IL-17, we analyzed the transcriptome of WT vs. Ikaros null naive CD4+ T cells both resting (day 0) or activated with anti-CD3 plus anti-CD28 antibodies, IL-6, TGFb1 and neutralizing anti-IFNg and anti-IL-4 antibodies (Th17 condition) for 1 or 2 days. Samples from 3 independent experiments were analyzed.
Project description:naive CD4+ T cell Th0 effector _activated intact mnase For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf