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Crosstalk between the effects of extracellular vesicles (Evs) and TNF on U937 human monocyte cell line

ABSTRACT: Under physiological conditions, extracellular vesicles (EVs) are present simultaneously in the extracellular compartment together with cytokines. Thus, we hypothesized that EVs in combination with cytokines induce different responses of monocyte cells compared to EVs or cytokines alone. Human monocyte U937 cells were incubated with EV-containing or EV-free CCRF human T-cell supernatant, with or without the addition of TNF.

ORGANISM(S): Homo sapiens

PROVIDER: GSE47897 | GEO | 2013/06/19

SECONDARY ACCESSION(S): PRJNA208846

REPOSITORIES: GEO

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Crosstalk between the effects of extracellular vesicles (Evs) and TNF on U937 human monocyte cell line

Project description:Under physiological conditions, extracellular vesicles (EVs) are present simultaneously in the extracellular compartment together with cytokines. Thus, we hypothesized that EVs in combination with cytokines induce different responses of monocyte cells compared to EVs or cytokines alone. Human monocyte U937 cells were incubated with EV-containing or EV-free CCRF human T-cell supernatant, with or without the addition of TNF. U937 cells cultured in EV-free supernatant, supernatant containing CCRF t-cell derived EVs, TNF or both. Each treatment option was measured in 3 replicates.

2013-06-19 | E-GEOD-47897 | biostudies-arrayexpress

Transcriptomics of THP-1 EVs released after inflammasome or TLR stimulation

Project description:Inflammasome-activated cells undergo an inflammatory cell death associated with the release of potent pro-inflammatory cytokines and poorly characterized extracellular vesicles (EVs). Since inflammasome-induced EVs could signal inflammasome pathway activation in patients with chronic inflammation and modulate bystander cell activation, we performed a systems analysis of the RNA content and function of two EV classes. Therefore, PMA-differentiated THP-1 macrophages were either stimulated with inflammasome activators or TLR ligands and subsequently differently sized EVs (10K and SEC EVs) were isolated from the tissue culture supernatant. The RNA contained within EV preparations was extracted and subjected to the Clariom D microarray. Web link to Clariom D chip: https://www.thermofisher.com/order/catalog/product/902925?de&en#/902925?de&en

2021-07-26 | GSE180708 | GEO

Small RNA sequencing: EVs and the producing cells

Project description:We report the high-throughput profiling of small RNA in extracellular vesicles (EVs) and their producing mammalian cells using Illumina small RNA sequencing platform. By obtaining over 2190 miRNA expression from 18 samples, the miRNA profile in EVs and their producing cells were compared. Results provide insight into gene profile difference between EV loading and the producing cells.

2017-05-31 | GSE99430 | GEO

Extracellular Vesicles (EVs) derived from Hemangioma stem cells (HemSC)

Project description:In order to investigate the function and mechanism of HemSC-EVs, we performed RNA-seq of HemSC-EVs which were extracted from cell culture supernatant of HemSC.

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transcriptional profile of islet EVs for diabetes genes

Project description:Identification of transcriptional profile of several genes involved in diabetes in islet-derived extracellular vesicles (Evs). Recently, EVs are identified as a new mechanism in cell-to-cell communication by transfer of protein and genic information (mRNA, microRNA). Their role is under investigation in immunology, stem cell and cancer, but not in islets and diabetes. The aim of this experiment is to identify mRNA transcripts (in particular, mRNA transcripts involved in diabetes pathophysiology) present in islet Evs.

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Lectin microarray analysis of murine CTL EVs separated by ion exchange method

Project description:EVs in culture supernatant can be concentrated with removing exsomeres and 97% free proteins by MWCO 750 kDa UF. DEAE chromatography can be divided into bioactive EXO and other EVs as nucleic acid (DNA) cargo in UF-concentrated EVs.

2020-03-12 | GSE146818 | GEO

RNA-seq analysis with isolated human pancreatic islets treated with human breast cancer cell secreted Evs or control

Project description:Epidemiological evidence has identified an association between breast cancer (BC) and systemic dysregulation of glucose metabolism. However, how BC influences glucose homeostasis remains unknown. Here we show that BC-derived extracellular vesicles (EVs) suppress pancreatic endocrine secretion to systemically reset glucose homeostasis. In pancreatic β-cells, miR-122 delivered in BC-derived EVs targets PKM to suppress glycolysis and ATP-dependent insulin exocytosis. Mice receiving high-miR-122 EVs or bearing BC xenograft tumors, but not those with tumors deficient in EV secretion or miR-122, exhibit suppressed insulin secretion, enhanced endogenous glucose production, impaired glucose tolerance, and hyperglycemia. Compared to non-cancer controls, BC patients have higher levels of EV-encapsulated miR-122 and fasting glucose but lower insulin levels in blood; the miR-122 levels are positively associated with glucose and negatively associated with insulin. This EV-mediated glucose reallocation at the whole-body level may contribute to tumor growth and progression, as well as higher incidence of diabetes in BC patients.

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miRNA microarray analysis of murine CTL EVs separated by ion exchange method [miRNA]

2020-03-12 | GSE146817 | GEO

mRNA microarray analysis of murine CTL EVs separated by ion exchange method [mRNA]

2020-03-12 | GSE146815 | GEO

Expression data from knockdown of ZXDC1/2 in PMA-treated U937

Project description:ZXDC1 augments the expression of various markers of monocyte/macrophage differentiation when over-expressed in the U937 cell line treated with the phorbol ester PMA. Likewise, knockdown of ZXDC1 restricts the induced expression of these markers. We sought to identify specfic gene targets of ZXDC1 during the process of monocyte/macrophage differentiation in U937 by performing gene expression profiling in cells exhibiting reduced expression of ZXDC1 compared to controls. We used microarray to identify genes regulated by ZXDC during PMA-induced differentiation of U937 monoblasts towards a monocyte/macrophage phenotype

2013-10-01 | GSE45417 | GEO

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