Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA314414 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR3205650.fastq.gz | Fastqsanger.gz | |||
| SRR3205651.fastq.gz | Fastqsanger.gz | |||
| SRR3205642.fastq.gz | Fastqsanger.gz | |||
| SRR3205652.fastq.gz | Fastqsanger.gz | |||
| SRR3205643.fastq.gz | Fastqsanger.gz |
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Project description:Dendritic cells (DCs) uniquely direct the adaptive immune response towards activation or inhibition, yet little is known how these opposite programs are regulated at the transcriptional level. Here we applied genome-wide approaches to delineate the molecular function of DC-Specific transCRIPT (DC-SCRIPT/ZNF366), an 11 Zn finger-containing transcription factor potentiating DC-function by limiting IL-10 production. Transcriptome analysis identified DC-SCRIPT to affect expression of genes involved in MAPK signaling, and ChIP-Seq analysis showed binding of DC-SCRIPT to GA-rich enhancers nearby genes encoding MAPK Dual-Specificity Phosphatases (DUSPs). Functional studies demonstrated that DC-SCRIPT-knockdown DCs express much less DUSP4 and exhibit increased phosphorylation of all the three major MAPKs (ERK, JNK and p38). Enhanced ERK signaling in DC-SCRIPT-knockdown DCs led to higher production of the immune-inhibitory cytokine IL-10, which could be reverted by DUSP4 overexpression. These results delineate the molecular mechanism DC-SCRIPT employs to limit IL-10 production in DCs, thereby fine-tuning these professional antigen-presenting cells towards immune activation.
2018-06-19 | GSE78923 | GEO
Project description:The functional diversification of dendritic cells (DCs) is a key step in establishing protective immune responses. Despite the importance of this lineage diversity, its genetic basis is not fully understood. DC-SCRIPT (Zfp366) is a poorly known transcription factor expressed in conventional DCs (cDCs) and their committed bone marrow progenitors but not in plasmacytoid DCs (pDCs). We show that mice lacking DC-SCRIPT displayed substantially impaired development of IRF8-dependent conventional DC1 (cDC1), while cDC2 differentiated normally. The residual DC-SCRIPT-deficient cDC1s had impaired CD8+ T-cell cross-priming, which could be in part explained by the direct control of DC-SCRIPT on IL-12p40 production. Genome-wide mapping of DC-SCRIPT binding and gene expression analyses revealed a key role for DC-SCRIPT in maintaining cDC1 identity via the direct regulation of cDC1 signature genes, including Irf8. Our study reveals DC-SCRIPT to be a critical component of the gene regulatory program shaping the functional attributes of cDC1s.
2021-02-24 | GSE165138 | GEO
Project description:The functional diversification of dendritic cells (DCs) is a key step in establishing protective immune responses. Despite the importance of this lineage diversity, its genetic basis is not fully understood. DC-SCRIPT (Zfp366) is a poorly known transcription factor expressed in conventional DCs (cDCs) and their committed bone marrow progenitors but not in plasmacytoid DCs (pDCs). We show that mice lacking DC-SCRIPT displayed substantially impaired development of IRF8-dependent conventional DC1 (cDC1), while cDC2 differentiated normally. The residual DC-SCRIPT-deficient cDC1s had impaired CD8+ T-cell cross-priming, which could be in part explained by the direct control of DC-SCRIPT on IL-12p40 production. Genome-wide mapping of DC-SCRIPT binding and gene expression analyses revealed a key role for DC-SCRIPT in maintaining cDC1 identity via the direct regulation of cDC1 signature genes, including Irf8. Our study reveals DC-SCRIPT to be a critical component of the gene regulatory program shaping the functional attributes of cDC1s.
2021-02-24 | GSE165125 | GEO
Project description:The functional diversification of dendritic cells (DCs) is a key step in establishing protective immune responses. Despite the importance of this lineage diversity, its genetic basis is not fully understood. DC-SCRIPT (Zfp366) is a poorly known transcription factor expressed in conventional DCs (cDCs) and their committed bone marrow progenitors but not in plasmacytoid DCs (pDCs). We show that mice lacking DC-SCRIPT displayed substantially impaired development of IRF8-dependent conventional DC1 (cDC1), while cDC2 differentiated normally. The residual DC-SCRIPT-deficient cDC1s had impaired CD8+ T-cell cross-priming, which could be in part explained by the direct control of DC-SCRIPT on IL-12p40 production. Genome-wide mapping of DC-SCRIPT binding and gene expression analyses revealed a key role for DC-SCRIPT in maintaining cDC1 identity via the direct regulation of cDC1 signature genes, including Irf8. Our study reveals DC-SCRIPT to be a critical component of the gene regulatory program shaping the functional attributes of cDC1s. This SuperSeries is composed of the SubSeries listed below.
2021-02-24 | GSE165361 | GEO
Project description:We monitored patient's anti SARS-CoV-2 immune responses using an in vitro cross presentation assay. The goal of this study was to identify immune correlates of clinical protection against SARS-CoV-2 infection. Briefly, peripheral blood mononuclear cells of patient were divided into a monocyte and lymphocyte. Monocyte were differentiated into monocyte derived dendritic (mo-DC)cells using GM-CSF and Interferon alpha. Mo-DC were then loaded with SARS-CoV-2 culture lysates , or VeroE86 lysates. SARS-CoV-2 loaded mo-DC were then used to stimulates their autologous lymphocytes and T cell cytokine secretion was monitored in the supernatant. We discriminated patients producing IL-2 and patients producing IL-5. RNA sequencing was performed for 18 patients, to identify gene profile associated with IL-2 or IL-5 production.
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Project description:Analysis of the p38 MAPK pathway in regulation of dendritic cells (DCs) differentiation at the gene expression level. Bone marrow cells were cultured with mGM-CSF (20 ng/ml) in the presence of 1.5 mM of SB202190 or 0.1% DMSO. At day 7, semi-adherent cells were collected as immature DCs (iDCs). iDCs were matured by TNF-a (10 ng/ml) and IL-1b (10 ng/ml) for 48 hours. Results showed that p38 MAPK activity in DC progenitor cells acts as an antigen presentation attenuator, and disabling this critical brake during DC differentiation endows DCs with enhanced immunogenicity, which may be useful for the induction of antitumor immune responses. Total RNA was obtained from 2-day-cultured bone marrow cells, iDCs and mature DCs.
2014-05-22 | E-GEOD-57879 | biostudies-arrayexpress
Project description:Breast cancer is one of the most common causes of cancer-related deaths in women. Nuclear receptors (NR) and their regulators are well known for their role in breast cancer. Especially ligands for the type I NRs, Estrogen Receptor (ER) and Progesterone Receptor have growth promoting effects in breast cancer cells. The NR coregulator DC-SCRIPT (ZNF366) has been found to be a strong and independent prognostic marker in ER positive (ESR1) breast cancer patients. DC-SCRIPT modulates the function of multiple NRs and has opposing effects on type I versus type II NRs. It represses the function of the growth promoting type I NRs, whereas it enhances the mainly anti-proliferative type II NRs. In this study we aimed to gain further insight into the functional role of DC-SCRIPT in breast cancer cells. Therefore, the effect of DC-SCRIPT expression on breast cancer cell gene expression was investigated using a novel DC-SCRIPT-inducible MCF7 breast cancer cell line model. In the presence of DC-SCRIPT, multiple cell cycle related genes were differentially expressed, including the tumor suppressor gene CDKN2B.
2015-08-01 | GSE59995 | GEO
Project description:Transcriptional profiling of human dendritic cells (DC) comparing control (DC generated with GM-CSF plus IL-4) with three different treatments of tolerogenic (DC generated with GM-CSF plus IL-4 and IL-10, or IL-4, IL-10, and IL-6, or IL-4, IL-10, and TGF-b1)
2009-11-13 | GSE18921 | GEO
Project description:Oxidative injury and inflammation have been implicated in the genesis of hypertension but the mechanisms involved are not fully understood. We describe a new pathway in which angiotensin II promotes dendritic cell (DC) activation of T cells and ultimately hypertension. NADPH oxidase-dependent superoxide production is increased 5-fold in DCs isolated from hypertensive mice as compared to sham-treated mice. This is associated with DC accumulation of protein-isoketal adducts and production of IL-6, IL-1β and IL-23. DCs from hypertensive mice but not sham mice promote survival and proliferation of CD8+ T cells in culture. Chemically diverse isoketal scavengers not only prevent activation and immunogenicity of DCs, but also attenuate angiotensin II-induced hypertension. Moreover, adaptive transfer of DCs from hypertensive mice prime development of hypertension in response to a subpressor dose of angiotensin II. Exposure of DCs to tert butyl hypdroperoxide promoted isoketal formation, DC stimulation of CD8+ T cell proliferation and primed hypertension in response to low dose angiotensin II. Serum isoprostanes, precursors to isoketals, were found to be elevated in humans with treated hypertension and were markedly elevated in patients with resistant hypertension. These studies show that angiotensin II-induced hypertension activates DCs, in large part by causing superoxide production and formation of isoketals. They define a new mechanism of hypertension and identify a potential new therapeutic approach for this disease. We used microarrays to detail the expression differences in dendritic cells under hypertensive conditions. Dendritic cells were isolated from mosue spleen and subsequently treated with Angiotensin II with or without co-treatment with 2-hydroxybenzylamine (2-HOBA) for RNA extraction and hybridization on Affymetrix microarrays. We sought to determine the effect of oxidative stress on dendritic cell expression profiles.
2014-07-16 | E-GEOD-59422 | biostudies-arrayexpress
Project description:IL-17A is a pro-inflammatory cytokine that promotes host defense against infections and contributes to the pathogenesis of chronic inflammatory diseases. Dendritic cells (DC) are antigen-presenting cells responsible for adaptive immune responses. Here, we report that IL-17A induces intense remodeling of lipid metabolism in human monocyte-derived DC, as revealed by microarrays analysis. In particular NR1H3/LXR-a and its target genes were significantly upregulated in response to IL-17A. IL-17A induced accumulation of Oil Red O-positive lipid droplets in DC leading to the generation of lipid-laden DC. A lipidomic study established that all the analyzed lipid species, i.e phospholipids, cholesterol, triglycerides, cholesteryl esters were elevated in IL-17A-treated DC. The increased expression of membrane lipid transporters in IL-17A-treated DC as well as their enhanced ability to uptake the fatty acid Bodipy-FL-C16 suggested that lipid uptake was the main mechanism responsible for lipid accumulation in response to IL-17A. IL-17A-induced lipid laden DC were able to stimulate allogeneic T cell proliferation in vitro as efficiently as untreated DC, indicating that IL-17A-treated DC are potently immunogenic. This study, encompassed in the field of immunometabolism, points out for the first time IL-17A as a modulator of lipid metabolism in DC and provides a rationale to delineate the importance of lipid-laden DC in IL-17A-related inflammatory diseases. We used microarrays analysis to understand the impact of IL-17A on human monocyte-derived human dendritic cells. We found overexpression of many genes involved in lipid metabolism in IL-17A-treated dendritic cells compared to untreated dendritic cells. In particular NR1H3/LXR-a and its target genes were significantly upregulated in response to IL-17A. IL-17A induced accumulation of Oil Red O-positive lipid droplets in DC leading to the generation of lipid-laden DC. A lipidomic study established that all the analyzed lipid species, i.e phospholipids, cholesterol, triglycerides, cholesteryl esters were elevated in IL-17A-treated DC. The increased expression of membrane lipid transporters in IL-17A-treated DC as well as their enhanced ability to uptake the fatty acid Bodipy-FL-C16 suggested that lipid uptake was the main mechanism responsible for lipid accumulation in response to IL-17A. IL-17A-induced lipid laden DC were able to stimulate allogeneic T cell proliferation in vitro as efficiently as untreated DC, indicating that IL-17A-treated DC are potently immunogenic. This study, encompassed in the field of immunometabolism, points out for the first time IL-17A as a modulator of lipid metabolism in DC and provides a rationale to delineate the importance of lipid-laden DC in IL-17A-related inflammatory diseases. RNA was extracted from untreated in vitro-generated DC at day 0 (DC, 4 biological replicates ) or DC cultured for 12 days with IL-17A, in the absence or presence of IFN-g (DC-17 and DC-G17, 5 biological replicates)
2015-03-31 | E-GEOD-53163 | biostudies-arrayexpress