Transcriptomics coupled proteomics reveals the critical signaling pathways regulating OVA antigen-specific CD8+ T cells in mouse spleen and liver
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PROVIDER: PRJNA1096951 | ENA |
REPOSITORIES: ENA
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Project description:Background: Antigen-specific T cells are particularly important for eliminating bacterial infection, and the dynamics in this process help uncover the mechanisms by which bacteria are eliminated.Results: In this study, we sorted the antigen-specific CD8+ T cell in the mouse liver and spleen at 5, 7, and 14 days after infection of Listeria monocytogenes expressing the OVA protein, finding that antigen-specific CD8+ T cell expansion after infection peaked on Day 7. Through the RNAseq analysis, we identified 355 genes whose expression peaked on 7 days post-infection shared in both of spleen and liver. For these shared genes, the KEGG pathway analysis showed a notable enrichment in the metabolic pathway. We also discovered 1621 proteins shared in the mouse liver and spleen that peaked seven days after infection by the LC-MS/MS analysis. The KEGG pathway analysis for these proteins revealed a significant enrichment in Splicesome, RNA transport, Ubiquitin mediated proteolysis, and Huntington disease. Transcriptomics coupled proteomics reveals 45 genes/proteins that were elevated on day 7 post listeria infection both in the spleen and liver. These 45 molecules were enriched in Human T-cell leukemia virus 1 infection and T cell activation, which played an important role in the activation of T cells and the anti-infection process.Conclusion: Transcriptomics coupled proteomics reveals the key signaling pathways to regulate antigen-specific CD8+ T cells by infection of Listeria monocytogenes expressing the OVA protein in mouse spleen and liver.
2024-04-10 | GSE263368 | GEO
Project description:Antigen-specific T cells are particularly important for eliminating bacterial infection, and the dynamics in this process help uncover the mechanisms by which bacteria are eliminated.This study used MHC class I tetramers to recognize the antigen OVA antigen-specific CD8+ T cells in mouse spleen and liver. Then combined the RNAseq and LC-MS/MS analysis to track the changes of the OVA antigen-specific CD8+ T cells at different time points (5 days,7 days, and 14 days post listeria infection).Transcriptomics coupled proteomics reveals the key signaling pathways to regulate antigen-specific CD8+ T cells by infection of Listeria monocytogenes expressing the OVA protein in mouse spleen and liver.
2024-03-26 | PXD050970 |
Project description:In order to explore the molecular mechanism of SJMHE1 intervention in allergic rhinitis, an OVA-induced allergic rhinitis model was established and intervened by subcutaneous injection of PBS and SJMHE1. Then a global RNA sequencing of mouse spleen B cells from the control, PBS, and SJMHE1 groups were performed.
2023-04-30 | GSE229347 | GEO
Project description:Chlorella has been reported to have various physiological activities, including antiarteriosclerotic, cholesterol-lowering, anti-inflammatory, and immunoregulatory effects. However, there has been no report on the long-term effects of chlorella ingestion on immunity. In the present study, 4- to 10-week-old (young) and 4- to 50-week-old (old) female BALB/c mice were sensitized or not with ovalbumin (OVA), and given basic diet containing chlorella powder at 2% or basic diet alone. The effects of chlorella ingestion on immunity were investigated by measurement of splenic cytokines and immunoglobulin (Ig), analysis of T- and B-cells in the spleen and small intestine by flow cytometry, and analysis of the liver by DNA microarray. Results were compared between the young and old, OVA-sensitized and -nonsensitized, and chlorella and non-chlorella ingestion groups. Production of interferon-γ (IFN-γ) was maintained in the nonsensitized old groups, and ratios of T-helper type 1 (Th1) to T-helper type 2 (Th2) cells were similar in the young and old groups. In addition, overproduction of OVA-specific Igs due to OVA sensitization was strongly suppressed, and significant immunotolerance was exhibited irrespective of age. In addition, suppression of T-cell decreases in the spleen due to aging and suppression of changes in T- and B-cells due to OVA sensitization in the small intestinal lymph were demonstrated on flow cytometric analyses. On DNA microarray analysis, immune-related terms including IL11 and major histocompatibility complex (MHC) class 1 were detected, and expression of genes was shown, which were related to IL1-linked genes and complex involving macrophages from the pathways of cytokines and inflammatory response. In addition, suppressions of declined lipid metabolism and energy production were also suggested. Although how the ingredients in chlorella were involved in these changes is unclear, our findings suggest that prevention of decrease in acquired immunity by aging and induction of strong immunotolerance occurred following chlorella ingestion.
2010-11-16 | GSE19032 | GEO
Project description:Chlorella has been reported to have various physiological activities, including antiarteriosclerotic, cholesterol-lowering, anti-inflammatory, and immunoregulatory effects. However, there has been no report on the long-term effects of chlorella ingestion on immunity. In the present study, 4- to 10-week-old (young) and 4- to 50-week-old (old) female BALB/c mice were sensitized or not with ovalbumin (OVA), and given basic diet containing chlorella powder at 2% or basic diet alone. The effects of chlorella ingestion on immunity were investigated by measurement of splenic cytokines and immunoglobulin (Ig), analysis of T- and B-cells in the spleen and small intestine by flow cytometry, and analysis of the liver by DNA microarray. Results were compared between the young and old, OVA-sensitized and -nonsensitized, and chlorella and non-chlorella ingestion groups. Production of interferon-γ (IFN-γ) was maintained in the nonsensitized old groups, and ratios of T-helper type 1 (Th1) to T-helper type 2 (Th2) cells were similar in the young and old groups. In addition, overproduction of OVA-specific Igs due to OVA sensitization was strongly suppressed, and significant immunotolerance was exhibited irrespective of age. In addition, suppression of T-cell decreases in the spleen due to aging and suppression of changes in T- and B-cells due to OVA sensitization in the small intestinal lymph were demonstrated on flow cytometric analyses. On DNA microarray analysis, immune-related terms including IL11 and major histocompatibility complex (MHC) class 1 were detected, and expression of genes was shown, which were related to IL1-linked genes and complex involving macrophages from the pathways of cytokines and inflammatory response. In addition, suppressions of declined lipid metabolism and energy production were also suggested. Although how the ingredients in chlorella were involved in these changes is unclear, our findings suggest that prevention of decrease in acquired immunity by aging and induction of strong immunotolerance occurred following chlorella ingestion. The Young Control group and Old Control group were fed normal food, and the Old Chlorella intake group was fed food including 2.0% Chlorella powder. The total RNA was isolated from liver and samples was pooled for each group (n = 6 for each group). A table of normalized log2 ratios (where numerator is sample expression data, and denominator is all sample median data) is linked below as a supplementary file.
2010-11-16 | E-GEOD-19032 | biostudies-arrayexpress
Project description:Lungs from miR-21+/+ and miR-21-/- mice sensitized with OVA/Alum and challenged with either saline or OVA.
2011-08-25 | E-MEXP-3119 | biostudies-arrayexpress
Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goal of this study is to compare the transcriptome of OT-1 cells during priming (3 days after infection) and during effector phase ( 7 days after infection) in ODC-OVA mice after LCMV-OVA and Lm-OVA infection
2018-05-17 | GSE93805 | GEO
Project description:specific pathogen-free female BALB/c mice aged 7-8 weeks (Animal Resources Centre, Perth, Western Australia) were systemically sensitised by intraperitoneal injection of 50 M-5g of alum-precipitated chicken egg OVA (Grade V, ?98% pure, Sigma Australia) 21 and 7 days before inhalational challenge, then exposed to aerosolised OVA in a whole body inhalation exposure chamber (Unifab Corporation, Kalamazoo, MI). Chronic low-level challenge involved exposure to ?3 mg/m3 aerosolised OVA for 30 minutes/day on 3 days/week for up to 6 weeks. Particle concentration within the chamber was continuously monitored using a DustTrak 8520 instrument (TSI, St Paul, MN). All experimental procedures complied with the requirements of the Animal Care and Ethics Committee of the University of New South Wales (reference numbers: 06/119B and 08/09B). Mice were sacrificed after 1,2,4 and 6 weeks of OVA exposure. Control groups included naM-ove mice and mice that were not sensitised but were challenged for 6 weeks with aerosolised OVA.
2011-06-10 | E-MEXP-3118 | biostudies-arrayexpress
Project description:9 rabbit spleen label free proteomics studies.In order to study some drugs on animal innate immunity, we built rabbit models, using rabbit immune organs - spleen made mass spectrometry based label free proteomics studies. Finally, it is expected to find the target of the drug and the mechanism of action.
2022-08-12 | PXD029947 | Pride
Project description:The aim of the project was the identification of the transcriptional signature of effector T cells and Tfh cells that emerge following immunization with different adjuvants. For this purpose OVA-specific TCR-transgenic cells (from DO11.10 or OT-II mice) were adoptively transferred into congenic BALB/c or C57Bl/6 mice, subsequently immunized with OVA-IFA or OVA-CpG. At day 11, the OVA-specific T effector and Tfh cells were FACS sorted from the draining lymph nodes for RNA sequencing.
2023-04-15 | E-MTAB-12086 | biostudies-arrayexpress