Comparison of gene expression of OT-I CD8 T cells after infection
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
SUBMITTER: Leo Lefrancois
PROVIDER: E-GEOD-20265 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:The goal was to examine gene expression after in vivo activation by different vaccine strains of Listeria monocytogenes. Heat killed LM, irradiated LM and live actA- LM were used to immunize mice after transfer of OT-I cells
2010-06-01 | GSE20265 | GEO
Project description:Cerebral listeriosis is characterized by neuronal apoptosis and microglial cell activation, but little is known about the bacterial virulence factors involved in this process and how bacterial dissemination is controlled. Here, we show that the cellular target of Listeria monocytogenes (LM) in murine hippocampal cultures is microglia rather than neurons or other glial cells, which are rarely infected. This in vitro model served to demonstrate that infected microglial cells release a soluble factor to the medium responsible for neuronal apoptosis. We investigated the production of this factor in a well-established murine microglia cell model BV2 cells, and compared with J-774 macrophage cells after infection with different LM bacterial mutants. Our purpose was to study in both cell types parameters such as the listericidal capacities, pro-inflammatory cytokines released, and bacterial factors involved in the intracellular cycle. Our data reveal that microglia shows unique features to handle a LM infection. Microglia is three times more permissive for LM intracellular growth than murine macrophages; while producing five times higher levels of pro-inflammatory cytokines IL-6, MCP-1 and TNF-α than macrophages. Using different LM mutants (i.e., LMWT, LM∆LLO, LM∆ActA or LM∆plcB) we conclude that LLO and ActA are not involved in LM proliferation within microglia cells, while they are required for survival within macrophages. Moreover, ActA controls TNF-α production, a cytokine involved in neural apoptosis. Transcriptional differential response of microglia infected with different LM mutants reflected ActA controls the TNF-a signaling pathway through out molecules and chemokines involved in this pathway such as NFkβ, MAPK-1, Ccl2, Ccl3, Ccl4 and CxCl10. The project implies the analysis of two replicates from three different conditions, in total 6 samples: microglia cells non-infected, microglia cells infected with Listeria monocytogenes (LM) wild type (LLO+), microglia cells infected with LM deficient in listeriolysin O (LLO-) and microglia cells infected with LM deficient in ActA (1942). References samples were microglia cells non-infected (NT). Infection with LM was performed for 1 hour, followed by 24 hours in medium with antibiotics to avoid bacterial extracellular growth. Gene expression analysis was performed using Partek Genomics Suite software (version 6.11.0801; Partek). GeneChip data were filtered to remove those probe sets with an intensity raw value close to background levels. Probe sets for each array are pre-processed using RMA. Also, probe sets whose expression change under all experimental conditions was below a threshold, based on the standard desviation of the normalised intensity values, were filtered.
2011-10-02 | E-GEOD-32505 | biostudies-arrayexpress
Project description:Cerebral listeriosis is characterized by neuronal apoptosis and microglial cell activation, but little is known about the bacterial virulence factors involved in this process and how bacterial dissemination is controlled. Here, we show that the cellular target of Listeria monocytogenes (LM) in murine hippocampal cultures is microglia rather than neurons or other glial cells, which are rarely infected. This in vitro model served to demonstrate that infected microglial cells release a soluble factor to the medium responsible for neuronal apoptosis. We investigated the production of this factor in a well-established murine microglia cell model BV2 cells, and compared with J-774 macrophage cells after infection with different LM bacterial mutants. Our purpose was to study in both cell types parameters such as the listericidal capacities, pro-inflammatory cytokines released, and bacterial factors involved in the intracellular cycle. Our data reveal that microglia shows unique features to handle a LM infection. Microglia is three times more permissive for LM intracellular growth than murine macrophages; while producing five times higher levels of pro-inflammatory cytokines IL-6, MCP-1 and TNF-α than macrophages. Using different LM mutants (i.e., LMWT, LM∆LLO, LM∆ActA or LM∆plcB) we conclude that LLO and ActA are not involved in LM proliferation within microglia cells, while they are required for survival within macrophages. Moreover, ActA controls TNF-α production, a cytokine involved in neural apoptosis. Transcriptional differential response of microglia infected with different LM mutants reflected ActA controls the TNF-a signaling pathway through out molecules and chemokines involved in this pathway such as NFkβ, MAPK-1, Ccl2, Ccl3, Ccl4 and CxCl10.
2011-10-03 | GSE32505 | GEO
Project description:Analysis of gene expression in explanted peritoneal macrophages from Aoah -/- and Aoah +/+ mice treated with LPS 21 days prior to harvest. Explanted peritoneal machrophages were challenged with LPS or control (PBS). The study seeks to characterize global gene expression in the state of prolonged LPS tolerance induced in mice lacking the LPS-inactivating enzyme Aoah. Groups of 9 C57BL/6 Aoah+/+ or Aoah-/- mice were given i.p. injections of 10 µg E. coli LPS/mouse. Twenty-one days later (when Aoah-/- mice remain tolerant and Aoah+/+ mice have recovered), peritoneal macrophages were harvested and the yields from three mice were pooled to form 3 samples per group (i.e., three samples of Aoah+/+ and Aoah-/- mice, with each sample comprised of peritoneal macrophages from 3 mice). Next day, cells were challenged with LPS or PBS and whole RNA was isolated 2 hours later and used for microarray experiments.
2012-08-17 | E-GEOD-40154 | biostudies-arrayexpress
Project description:The transcriptome of naive OT-I T cells was compared to memory CD8 T cells after 1, 2, 3, or 4 infection with ovalbumin expressing Listeria monocytogenes (LM-OVA). Naive Thy1.1 OT-I T cells were adoptively transferred into Thy1.2 naive hosts prior to infection with LM-OVA. The resulting memory CD8 T cell population was again adoptively transferred into naive hosts and the recipient mice were again infected with LM-OVA. The adoptive transfer was repeated up to four times to generate memory CD8 T cells with up to four consecutive antigen stimulations. Three individual mice were analyzed for each group. For quaternary memory CD8 T cells, spleens from two to three mice were pooled for each sample. Naive OT-I T cells served as control samples. http://dx.doi.org/10.1016/j.immuni.2010.06.014
2010-07-09 | E-GEOD-21360 | biostudies-arrayexpress
Project description:Mice received DivisionRecorder+ or unmodified OT-I T cells and were challenged with LM-OVA. During memory phase we FACS sorted memory CD8+ OT-I T cells (and sub-sorted RFP+ and RFP- cells in the case of DivisionRecorder+ cells) from spleen material and performed single cell RNA sequencing.
2021-11-01 | GSE169154 | GEO
Project description:scATAC-seq from OT-1 CD8+ T cells after Lm-OVA infection at day 0 (Naïve), day 2 (D2), and day 8 (D8) post infection
2025-02-17 | GSE241714 | GEO
Project description:The transcriptome of naive OT-I T cells was compared to memory CD8 T cells after 1, 2, 3, or 4 infection with ovalbumin expressing Listeria monocytogenes (LM-OVA).
2010-07-10 | GSE21360 | GEO
Project description:Purpose. Aggressiveness is a crucial issue related to cutaneous melanoma malignancy and its high metastatic potential. Aim of this work is to identify new pathways or molecules controlling melanoma cell aggressiveness. Proliferation, migration and invasion capability under serum stimulation were analyzed in 12 human metastatic melanoma cell lines to identify the most aggressive ones as a model. The most proliferating/invading (defines as the most aggressive) A375 cell line was compared to the less aggressive one, Sk mel 28 by means of different approaches: 1) transcriptomic analysis by ILLUMINA platform; 2) proteomic study through LC-MS/MS analysis; 3) multiplexed assay to measure secretion of cytokines in conditioned media bioinformatic analysis was then carried out. Two groups of cells significantly differing in aggressiveness were identified and 2 cell lines, namely A375 and SK-Mel-28 were selected as model of the most and the less aggressive phenotype, respectively. A multi-omic analysis of several experimental datasets derived from transcriptomic, proteomic (mass spectrometric) and cytokinomic data was then carried out via Ingenuity Pathway Analysis (IPA) software. Analysis of upstream regulators and network analysis, indicated that the expression of tumor necrosis factor (TNF) were significantly differently expressed and functioning. The involvement of these pathways was confirmed by functional validation studies as zymography and proliferation studies and the most significantly upregulated pathway (TNF-alfa) was tested. Five melanoma cell lines with different MAGS were treated with an anti-TNFα monoclonal antibody and the most aggressive ones were highly significantly affected.
2019-01-08 | E-MTAB-4212 | biostudies-arrayexpress
Project description:Investigation of transcriptomic changes in M.luteus at 12hrs and 24hrs. Differences in fatty acid profiles of M. luteus at exponential and stationary phase is attributed to transcriptional changes of branched amino acid biosynthesis and degradation genes. This study is described by Pereira, J.H., E.B. Goh, J.D. Keasling, H.R. Beller and P.A. Adams in Crystal structure of FabH and factors affecting the distribution of branched fatty acids in Micrococcus luteus, which has been submitted to Acta Crystallographica Section D
2012-09-24 | GSE38040 | GEO