Project description:An intricate interplay among Tcf1/Lef1 and CTCF that orchestrates genomic architecture to coordinately promote CD8+ T cell homeostatic proliferation
Project description:An intricate interplay among Tcf1/Lef1, CTCF and Stat5 that orchestrates genomic architecture to coordinately promote CD8+ T cell homeostatic proliferation
Project description:An intricate interplay among Tcf1/Lef1, CTCF and Stat5 that orchestrates genomic architecture to coordinately promote CD8+ T cell homeostatic proliferation
Project description:An intricate interplay among Tcf1/Lef1, CTCF and Stat5 that orchestrates genomic architecture to coordinately promote CD8+ T cell homeostatic proliferation
Project description:An intricate interplay among Tcf1/Lef1, CTCF and Stat5 that orchestrates genomic architecture to coordinately promote CD8+ T cell homeostatic proliferation
Project description:An intricate interplay among Tcf1/Lef1, CTCF and Stat5 that orchestrates genomic architecture to coordinately promote CD8+ T cell homeostatic proliferation
Project description:Our earlier study demonstrated that when CFSE-labeled LCMV-or Pichinde virus-immune spleen leukocytes were transferred into T cell-deficient hosts, the bona fide virus-specific memory cells underwent relatively limited cell division and were substantially diluted in frequency by other more extensively proliferating cells originating from that donor cell population. We questioned how the slowly dividing population, which contained bona fide memory cells, differed from the rapidly dividing cells, which contained âmemory-likeâ cells. As a preliminary screen we performed a comparative genome-wide microarray analysis of genes expressed on sorted rapidly proliferating (CFSE-low) and slowly proliferating (CFSE-high) CD8 cell populations Experiment Overall Design: 2x10^7 CFSE-labeled, Ly5.1+, LCMV-Immune splenocytes were adoptively transferred into congenic T cell ko hosts. Splenocytes were harvested 12 days post-transfer and stained with anti-CD8 Ab, anti-Ly5.1 Ab and 7AAD. 7AAD negative cells were gated, and CFSE-low (> eight divisions) and CFSE-high (0-6 divisions) cells were sorted by flow cytometry using a FACStarPLUS sorter (BD Bioscience, Mountain View, CA). Total RNA was extracted from both CFSE-low and CFSE-high CD8+Ly5.1+ donor populations to compare rapidly vs. slowly dividing CD8 T cells during acute homeostatic proliferation via Affymetrix gene analysis.
Project description:Here we performed single-cell RNA sequencing to address repertoire stability and subset plasticity during IL-15 driven homeostatic proliferation. Sorted NK cell subsets representing discrete stages of NK cell differentiation are compared with the corresponding subsets after proliferation and further sorted into two subsets depending on the rate of proliferation.
Project description:Genomewide microarray analysis of murine tolerant, self-antigen specific CD8 T cells to identify genes and pathways underlying peripheral T cell tolerance Gene signature of tolerant CD8 T cells was compared to the signatures of naïve T cells, memory T cells, rescued T cells (=tolerant T cells undergoing homeostatic proliferation in lymphopenic, tolerogenic Alb:GAG mice), and re-tolerized T cells (=previously rescued T cells post homeostatic proliferation isolated from lymphoreplete wild-type B6 mice). Total RNA obtained from various sort-purified transgenic CD8 T cell subsets (naïve, memory, tolerant, rescued, and re-tolerized) isolated from spleens of different host mice
Project description:To determine the effects of excess IL-18 and perforin deficiency on CD8 T cell clonality toegther and separately under homeostatic conditions. These data support that together perforin deficiency and excess IL-18 promote hyperexpansion of CD8 T cell clones.