Project description:A study of the miRNA profile CD4 T cells compared to T reg cells; of activated and naive T cells; and the miRNA profile conferred by enforced expression of Foxp3. Keywords: cell type comparison Fifteen arrays broken down into three broader experiments as referenced by series GSE6003 - a comparison of miRNA profile of natural T reg cells with conventional CD4+CD25- T cells; GSE6006 - a comparison of miRNA profile of activated T cells to naive T cells; and GSE6007 - comparison of miRNA profile of Foxp3-transduced activated T cells with control vector-transduced activated T cells.
Project description:Activated T cells were transduced with either Foxp3-IRES-GFP or IRES-GFP control vector. Low molecular weight RNA from cells was extracted 72h or 96h later and hybridised to microarrays containing oligonucleotide probes corresponding to known miRNA sequences. Keywords: cell type comparison
Project description:Activated T cells were transduced with either Foxp3-IRES-GFP or IRES-GFP control vector. Low molecular weight RNA from cells was extracted 72h or 96h later and hybridised to microarrays containing oligonucleotide probes corresponding to known miRNA sequences. Keywords: cell type comparison Four arrays representing two timepoints dyeswaps of each.
Project description:A study of the miRNA profile CD4 T cells compared to T reg cells; of activated and naive T cells; and the miRNA profile conferred by enforced expression of Foxp3. Keywords: cell type comparison
Project description:E47 represses Foxp3 transcription, albeit indirectly through the activation of unknown negative regulatory of Foxp3 transcription. To identify target genes of E47 in regulatory T cells, we compared gene expression profiles of Treg cells overexpressing E47 compared to control-vector transduced cells.
Project description:Analysis of Foxp3(+)epigenetics(-) T cells, Foxp3(-)epigenetics(+) T cells, and Foxp3(+)epigenetics(+) T cells. Results indicate regulatory T cell (Treg) ontogenesis requires two independent processes, expression of the transcription factor Foxp3 and establishment of Treg epigenetic programs induced by T cell receptor (TCR) stimulation. GFP+CD4+ and GFP-CD4+ splenocytes were sorted from DEREG and DEREG/Scurfy mice. These cells were activated with anti-CD3/CD28 antibodies, and then transduced with Foxp3-expressing retrovirus (pGCSamIN, NGFR marker). NGFR+ T cells sorted were subjected to microarray analysis (Affymetrix, mouse genome 430 2.0 array). To normalize the experimental conditions, Tregs (GFP+ T cells from DEREG) and Tconv (GFP- T cells from DEREG) were also activated and transduced with empty vector. Two replicates each.
Project description:Foxp3-mediated gene expression program in resting vs. activated CD4+ T cells The microarray part of this work consists of 12 Affymetrix assays corresponding to 3 biological replicates for each of 4 conditions for CD4+CD25- cells. Cells were either transduced with an empty vector or a vector encoding FOXP3, and in each case cells were either stimulated or not by anti-CD3/anti-CD28.
Project description:We had evidence that TRIM5 regulates signal transduction, specifically NFkB and MAPK pathways. To test the role of endogenous TRIM5 we used the myelomonocytic leukemia cell line THP1. These cells were transduced with a lentiviral vector that delivers a miRNA engineered to knockdown TRIM5. The vector also encoded a puromycin-resistance cassette and transduced cells were selected in poold with puromycin. As a control, cells were transduced with a vector targeting luciferase instead of TRIM5.
