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Expression data from Burkitt Lymphoma cell lines followed by expression or inhibition of ebv-BART6-3p microRNA

ABSTRACT: Epstein-Barr virus is associated with several human malignancies, including Burkitt Lymnphoma. The virus encodes more than 40 microRNAs, which participate in its possible pathogenetic role. We used microarrays to study the effect of the expression of an Epstein-Barr virus-encoded microRNA (ebv-BART6-3p) on the global gene expression profile of Burkitt Lymphoma cell lines.

ORGANISM(S): Homo sapiens

PROVIDER: GSE63665 | GEO | 2016/03/02

SECONDARY ACCESSION(S): PRJNA268656

REPOSITORIES: GEO

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Expression data from Burkitt Lymphoma cell lines followed by expression or inhibition of ebv-BART6-3p microRNA

Project description:Epstein-Barr virus is associated with several human malignancies, including Burkitt Lymnphoma. The virus encodes more than 40 microRNAs, which participate in its possible pathogenetic role. We used microarrays to study the effect of the expression of an Epstein-Barr virus-encoded microRNA (ebv-BART6-3p) on the global gene expression profile of Burkitt Lymphoma cell lines. In order to determine the BART6-3p targets, EBV-negative Akata 2A8 or EBV-positive Akata cells were transiently transfected (in duplicates) with synthetic BART6-3p mimic or inhibitor (100 nM; Custom synthesized by Dharmacon- Thermo Scientific, Germany), respectively. For each treatment, a further transfection with corresponding negative control was performed as well (10 nM; I-300145-01, Dharmacon- Thermo Scientific, Germany). The transfection of 5,000,000 cells per treatment was performed by Amaxa nucleofector apparatus (Amaxa, Cologne-Germany), using the program G23 and the transfection solution V according to the manufacturerâs instructions. Transfection efficiency was assessed by means of a further treatment (2Âµg of pmaxGFP) and detection of both fluorescence and cell viability by flow cytometry. Twenty four hours post-transfection, cells were harvested and RNA was extracted using Trizol, and transfection efficiency was further confirmed by evaluating the expression level of BART6-3p using q-PCR by means of Taqman probes, employing RNU43 as housekeeping miRNA (Applied Biosystems, Cologne, Germany). RNA was further hybridized to HuGene-2.0-st array (Affymetrix, Santa Clara, CA) according to the manufacturer's instructions.

2016-03-02 | E-GEOD-63665 | biostudies-arrayexpress

Gene expression in EBV-positive versus EBV-loss clones derived from endemic Burkitt lymphoma cell lines

Project description:Whilst the association of Epstein-Barr virus (EBV) with Burkitt lymphoma (BL) has long been recognized, the precise role of the virus in BL pathogenesis is not fully resolved. EBV can be lost spontaneously from some BL cell lines, and these EBV-loss lymphoma cells reportedly have a survival disadvantage. We have generated an extensive panel of EBV-loss clones from multiple BL backgrounds and examined their phenotype comparing them to their isogenic EBV-positive counterparts. Whilst loss of EBV from BL cells is rare, it is consistently associated with an enhanced predisposition to undergo apoptosis and reduced tumorigenicity in vivo. We investigated whether there were common gene expression changes between EBV-positive and loss clones derived for four endemic Burkitt lyphoma cell lines that could explain the apoptosis sensitivity of clones that had lost EBV.

2018-01-25 | GSE100458 | GEO

The role of viral microRNAs in Burkitt Lymphoma: the Epstein Barr-encoded Bart-6-3p microRNA regulates cell proliferation and immunosurveillance

Project description:Compare Epstein-Barr-positive and Epstein-Barr-negative Burkitt lymphoma cases forboth cellular and viral microRNA expression profile, and to assess the role of viralmicroRNAs in Burkitt lymphomagenesis

2015-11-30 | GSE52916 | GEO

Proteomics of EBV-infected lytic and refractory cells

Project description:Most humans are infected with Epstein-Barr virus (EBV), a cancer-causing virus. While EBV generally persists silently in B lymphocytes, periodic lytic (re-)activation of latent virus is central to its life cycle and to most EBV-related diseases. However, a substantial fraction of EBV-infected B cells and tumor cells in a population is refractory to lytic activation. This resistance to lytic activation directly and profoundly impacts viral persistence and effectiveness of oncolytic therapy for EBV+ cancers. To identify the mechanisms that underlie susceptibility to EBV-lytic activation, we used host protein-expression profiling of separated-lytic and -refractory cells.

2016-04-27 | PXD001838 | Pride

Expression data for human peripheral blood mononuclear cells (PBMCs) transfected with EBV Bart 6-3p mimics.

Project description:Epstein-Barr virus (EBV) is highly successful virus infecting the majority of the human population worldwide. During the latent infection period, there are only a few of EBV-encoded proteins can be detected, whereas EBV-encoded non-coding RNAs are highly activated, especially microRNAs. Recent studies found that those BART microRNAs not only disturb EBV genes expression, but also interfere many host genes expression, thus modulating cellular proliferation and immune regulation. In the present study, we investigate the effect of EBV BART6-3p on gene expression profile of the human PBMCs.

2018-07-31 | GSE94312 | GEO

Peripheral blood gene expression in human experiencing primary EBV infection (Ref8)

Project description:Epstein Barr virus causes linfectious mononucleosis and establishes lifelong infection associated with cancer and autoimmune disease. To better understand immunity to EBV, we performed a prospective study of natural infection in healthy humans. These anlyses were undertaken in order to determine what gene expression changes occur as the result of primary Epstein Barr virus infection. Samples were taken both before and following acquisition of the virus for direct comparison of samples for single subjects. These data provide an important first description of the response to natural herepesvirus infection in humans. PBMC were taken before acquisition of EBV, during acute infection, and during latency

2013-12-31 | E-GEOD-45918 | biostudies-arrayexpress

Peripheral blood gene expression in human experiencing primary EBV infection (HT12)

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Proteomics of EBV-infected lytic and refractory cells

2016-07-22 | MSV000079993 | MassIVE

The forced loss of Epstein Barr virus from Burkitt's lymphoma cells: uncomplemented cells vs BART miRNA complemented cells.

Project description:Transcriptional profiling of Burkitt lymphoma cells engineered to inducibly express dominant negative EBNA1 (dnEBNA1), which forces the loss of Epstein Barr virus (EBV). Profiles are made of cells in which all of EBV is lost (dnEBNA1 on) or all of EBV except the BART miRNAs is lost (dnEBNA1 on, BART miRNAs ectopically expressed).

2010-10-01 | GSE22586 | GEO

Gene expression data from human platelets infected by EBV in vitro

Project description:Viruses can directly interact with platelets and modulate their function. Viral impact on platelet activation, and platelet-mediated modulations of innate and adaptive immune responses. Human herpesvirus 4, also known as Epstein–Barr virus (EBV) interaction with platelets occurs via complement receptor 2 (CR2), but the exact mechanism of action with platelets is still poorly understood. Epstein–Barr virus (EBV), is extremely efficient at establishing a persistent life-long infection in human B cells. In the present study, GeneChips were performed in human platelets from three normal donors infected with the EBV-containing supernatant of the B95.8 marmoset cell line in vitro.

2022-01-01 | GSE181074 | GEO

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