Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA106079 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Many aged individuals develop monoclonal expansions of CD8 T cells. These expansions are derived from a CD8 memory T cell that outcompetes neighboring CD8 T cells. The molecular alterations within clonal expansions that confer this competitive advantage relative to other CD8 T cells remains unknown. These microarray experiments were designed to identify genes differentially expressed in age-associated expansions of CD8 memory T cells relative to polyclonal CD8 memory T cells found in the same aged mice. Subsequent analysis of these data identified two major types of clonal expansions, distinguished by expression level of integrin a4 mRNA and protein. Based on this classification, Expansion_rep1 belongs to the integrin a4 high subtype of clonal expansions. In contrast, reps 2, 4, and 5 belong to the integrin a4 low subtype of clonal expansions. Given the divergent biological properties of these two subtypes of clonal expansions, we have focused genes differentially expressed between Expansion_rep 2, 4, and 5 and their paired PolyclonalAged samples. Experiment Overall Design: A total of 8 samples were analyzed for gene expression using the Affymetrix mouse genome 430 2.0 microarray platform. The experimental samples of interest were age-associated clonal expansions of CD8 memory T cells. We purified four clonal expansions from four independent, aged mice (indicated as "Expansion" rep1 2, 3, 4). For each clonal expansion of CD8 memory T cells that was purified, there was a paired control in which polyclonal CD8 memory T cells were harvested from the same aged mouse (denoted as "PolyclonalAged" rep1, 2, 3, 4). These paired samples allow one to consider gene expression changes from mice which have undergone the same age-associated changes in biology. The predominant comparison this study focused on was changes in gene expression between age-associated clonal expansions of CD8 memory T cells and their paired, polyclonal CD8 memory T cells. A total of 4 of these pairs were collected.
2008-10-25 | E-GEOD-11677 | biostudies-arrayexpress
Project description:Many aged individuals develop monoclonal expansions of CD8 T cells. These expansions are derived from a CD8 memory T cell that outcompetes neighboring CD8 T cells. The molecular alterations within clonal expansions that confer this competitive advantage relative to other CD8 T cells remains unknown. These microarray experiments were designed to identify genes differentially expressed in age-associated expansions of CD8 memory T cells relative to polyclonal CD8 memory T cells found in the same aged mice. Subsequent analysis of these data identified two major types of clonal expansions, distinguished by expression level of integrin a4 mRNA and protein. Based on this classification, Expansion_rep1 belongs to the integrin a4 high subtype of clonal expansions. In contrast, reps 2, 4, and 5 belong to the integrin a4 low subtype of clonal expansions. Given the divergent biological properties of these two subtypes of clonal expansions, we have focused genes differentially expressed between Expansion_rep 2, 4, and 5 and their paired PolyclonalAged samples. Keywords: Cell type comparison of gene expression
2008-08-15 | GSE11677 | GEO
Project description:Cellular binary fate decisions require the progeny to silence genes associated with the alternative fate. The major subsets of alpha:beta T cells have been extensively studied as a model system for fate decisions. While the transcription factor RUNX3 is required for the initiation of Cd4 silencing in CD8 T cell progenitors, it is not required to maintain the silencing of Cd4 and other helper T lineage genes. The other runt domain containing protein, RUNX1, silences Cd4 in an earlier T cell progenitor, but this silencing is reversed whereas the gene silencing after RUNX3 expression is not reverse. Therefore, we hypothesized that RUNX3 and not RUNX1 recruits other factors that maintains the silencing of helper T lineage genes in CD8 T cells. To this end, we performed a proteomics screen of RUNX1 and RUNX3 to determine candidate silencing factors.
2019-11-12 | PXD007511 | Pride
Project description:Gene expression profiles of CD8+ partial memory T cells (Tpm) compared to naive, effector and memory CD8+ T cells (analysis 1, 17 samples)
| PRJNA141941 | ENA
Project description:Gene expression profiles of CD8+ partial memory T cells (Tpm) compared to naive, effector and memory CD8+ T cells (analysis 2, 20 samples)
| PRJNA141943 | ENA
Project description: Not available
| S-EPMC8784167 | biostudies-literature
Project description:Comparison of gene expression profiles from Mus musculus brain at age 30 months. The RNA-seq data comprise 1 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
2021-10-19 | GSE111206 | GEO
Project description:Comparison of gene expression profiles from Mus musculus brain (hippocampus) of animals kept in standard environment and enriched environment. The RNA-seq data comprise 4 groups: 2 age groups, each w/ and w/o enriched environment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
2021-10-19 | GSE111271 | GEO
Project description:Comparison of gene expression profiles from Mus musculus brain (hemisphere) of animals kept in standard environment and enriched environment. The RNA-seq data comprise 4 groups: 2 age groups, each w/ and w/o enriched environment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
2021-10-19 | GSE111273 | GEO