Project description:High amount of Eomes might drive T cell exhaustion. In order to understand how Eomes contributes to exhaustion of CD8+ T cell in the TME as a transcription factor, we conducted anti-Eomes ChIPseq analysis of control OT-I cells and Eomes-overexpressing OT-I cells.
Project description:High amount of Eomes might drive T cell exhaustion. In order to understand how Eomes contributes to exhaustion of CD8+ T cell in the TME, we conducted transcriptional analysis of control OT-I cells and Eomes-overexpressing OT-I cells
Project description:Th17 cells were sorted ex vivo from PB of healthy donors as CD4+CD161+CCR6+CXCR3-. Following, cells were transduced with a lentiviral vector carrying the Eomes gene or with an empty vector. Infected cells were then enriched by MACS separation using the reporter gene NGFR as selection marker. Finally, cells were frozen for RNA analysis.
Project description:Eomesodermin (Eomes) is a transcription factor with a crucial role regulating cytotoxic function, development and survival of immune cells. Although it is known that γδ T cells can express Eomes, its function on those cells is still largely unknown. Using Eomes-IRES-GFP mice we were able to sort for Eomes+ and Eomes‒ γδ T cells populations and get their gene expression profiles, bringing light to the role of Eomes on γδ T cells.
Project description:T-BET and EOMES are key transcription factors in the development of mature NK cells in mice. However, the role of these transcription factors during human NK cell development is less well understood. Therefore, we overexpressed T-BET or EOMES in human umbilical cord blood-derived hematopoietic progenitor cells (HPC) and cultured them in vitro in an NK cell differentiation model. On day 21 of culture mature stage 4 (CD56+CD94+CD16-) and stage 5 (CD56+CD94+CD16+) NK cells from T-BET or EOMES overexpression and control cultures were sorted, whereafter mRNA was isolated and transcriptome analysis was performed by RNA sequencing. Evaluation of the transcriptome in mature NK cells with T-BET or EOMES overexpression could reveal the molecular mechanisms of how T-BET and EOMES play a role in terminal NK cell maturation.
Project description:T-BET and EOMES are key transcription factors in the development of mature Natural Killer (NK) cells in mice. However, the role of these transcription factors during human NK cell development is less well understood. Therefore, we overexpressed T-BET or EOMES in human umbilical cord blood-derived HPC and cultured them in vitro in an NK cell differentiation model. To evaluate the effect of early overexpression of T-BET and EOMES in HPC, transcriptome profiling was performed on T-BET and EOMES overexpressing HPC and compared to control transduced HPC by RNA sequencing on day 0 of culture.
Project description:To gain mechanistic insights into how EOMES regulates CD4+ T-cell differentiation and function, we performed an RNA-seq analysis using Eomes-GFP reporter mice (Eomes+/GFP) to isolate GFP+ (EOMES+) and GFP- (EOMES-) CD4+ T-cells by FACS sorting. We also sequenced RNA from Eomes-deficient GFP+ and GFP- CD4+ T-cells isolated from EomesΔT/GFP knock-out mice, in which one Eomes allele is disrupted by GFP insertion and the DNA-binding domain of the other allele is deleted in T cells by Lck-driven Cre recombinase. Hence, we had two populations of GFP+ cells where the EOMES locus was transcribed, one with a transcriptionally active EOMES protein (Eomes+/GFP) and another one with no transcriptionally active EOMES (EomesΔT/GFP), plus the respective GFP-negative controls isolated from the same mice. A homogeneous population of EOMES-expressing CD4+ T cells were obtained by transferring naïve sorted CD25- CD45RBhigh CD4+ T-cells isolated from Eomes+/GFP reporter or EomesΔT/GFP knock-out donor animals into Rag2-/- mice. After three weeks of adoptive transfer GFP+ and GFP- CD4+ T-cell populations from these mice were FACS-sorted for transcriptome analysis by RNA sequencing.