Project description:To identify mechanisms behind immunosuppression during virus infections, we infected mice with LCMV-Armstrong and LCMV-Clone 13 expression patterns. LCMV-Armstrong induces a T-cell reaction that resolves infection within 8-10 days, while LCMV-Clone13 generates a persisten infection through immunosuppression. We used microarray to uncover splenic gene expression patterns specific to each LCMV infection at 5, 9, and 30 days C57BL6 mice, 6-10 weeks old, were infected with LCMV-Armstrong and LCMV-Clone 13 or left uninfected (naïve). At days 5, 9, and 30 whole spleens were harvested for RNA extraction and hybridization on Affymetric microarray.
Project description:To identify mechanisms behind immunosuppression during virus infections, we infected mice with LCMV-Armstrong and LCMV-Clone 13 expression patterns. LCMV-Armstrong induces a T-cell reaction that resolves infection within 8-10 days, while LCMV-Clone13 generates a persisten infection through immunosuppression. We used microarray to uncover splenic gene expression patterns specific to each LCMV infection at 5, 9, and 30 days
Project description:The epigenetic modifier TET2 plays a role in cell fate decisions in hematopeotic stem cells and CD4+ Th1 and Th17 differentiation. Here, we demonstrate that loss of TET2 promotes CD8+ memory differentiation following acute viral infection with LCMV-Armstrong.
Project description:This study is aimed to explore whether C1qbp deficiency affects the epigenetic modification during the differentiation stage of CD8+ T cells. Transferred WT and C1qbp KO P14 cells sorted from the spleen of donor mice on day 5 post-infection with LCMV Armstrong were collected and treated for ATAC-seq. ATAC-Seq analysis provided sufficient but not necessary evidence of epigenetic changes between WT and C1qbp KO CD8+ T cells. Our study have shown that, on day 5 post-infection with LCMV Armstrong, even WT and C1qbp KO CD8+ T cells have different mRNA expressing profiling, the ATAC-seq shows slight changes in chromatin accessibility of indicated genes.
Project description:This study is aimed to explore whether C1qbp deficiency affects the DNA methylation status during the differentiation stage of CD8+ T cells. Transferred WT and C1qbp KO P14 cells sorted from the spleen of donor mice on day 5 post-infection with LCMV Armstrong were collected. Genomic DNA was isolated for mRRBS. mRRBS analysis provided evidence of DNA methylation changes between WT and C1qbp KO CD8+ T cells. Our study have shown that, on day 5 post-infection with LCMV Armstrong, C1qbp KO CD8+ T cells have increased level of Global DNA methylation. Moreover, C1qbp KO CD8+ T cells show hegher DNA methylation at some effector cells-signature genes.
Project description:The profiles of H3K27 tri-methylation in CD8+ T cells from LCMV-Armstrong and LCMV-Clone 13 infected mice are known to be distinct from one another. We used CUT&RUN (Cleavage Under Targets and Release Using Nuclease) to analyze these differences in splenic CD8+ T cells of these two infection conditions.
Project description:The profiles of open chromatin regions of CD8+ T cells from LCMV-Armstrong and LCMV-Clone 13 infected mice are known to be distinct from one another. We used Assay for Transposase-Accessible Chromatin using sequencing at the single cell level (scATAC-seq) to analyze these differences in splenic CD8+ T cells of these two infection conditions at Division 1 post-infection.
Project description:The transcriptomes of CD8+ T cells from LCMV-Armstrong and LCMV-Clone 13 infected mice are known to be distinct from one another. We used single cell RNA sequencing (scRNA-seq) to analyze the transcriptomic diversity of splenic CD8+ T cells in these two infection conditions at various timepoints after infection.
Project description:At the peak of the CD8 T cell response to acture viral and bacterial infections, expression of the Interleukin-7 Receptor (IL-7R) marks Memory Precursor Effector CD8 T Cells (MPECs) from other Short-Lived Effector CD8 T cells (SLECs), which are IL-7Rlo. This study was designed to determine the gene expression differences between these two subsets of effector CD8 T cells. Experiment Overall Design: This study compared IL-7Rhi and IL-7Rlo LCMV-specific P14 Transgenic CD8 T cells, sorted from LCMV armstrong infected recipient mice 6/7 days after infection. Data includes 3 independent replicates for the IL-7Rhi and IL-7Rlo groups.
Project description:Tthis study is aimed to explore how C1qbp deficiency affects the mRNA expressing profiling during the differentiation stage of CD8+ T cells.Naïve WT and C1qbp KO P14 cells and transferred WT and C1qbp KO P14 cells sorted from the spleen of donor mice on day 3, 5, 7 post-infection with LCMV Armstrong were collected and treated for RNA-seq. RNA-Seq analysis revealed transcriptomic changes between WT and C1qbp KO CD8+ T cells. Naïve WT and C1qbp KO CD8+ T cells showed similar gene expressing profiling. On day 3, 5, 7 post-infection with LCMV Armstrong, WT and C1qbp KO CD8+ T cells showed 341, 1,164 and 437 differentially expressed genes respectively.
