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Methylation analysis of Epstein-Barr virus-associated gastric cancer case

ABSTRACT: Methylation analysis of Epstein-Barr virus-associated gastric cancer case

PROVIDER: PRJNA547827 | ENA |

REPOSITORIES: ENA

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Methylation analysis of Epstein-Barr virus-associated gastric cancer case

Project description:The comprehensive DNA methylation status of gastric cancer cells obtained from an advanced Epstein-Barr virus-associated gastric cancer case, in which complete response to S-1 plus cisplatin chemotherapy was achieved, was analyzed with DNA methylation microarray (Illumina Infinium MethylationEPIC BeadChip). DNA was extracted from metastatic lesion (lymph node).

2019-06-08 | GSE132406 | GEO

DNA methylation epigenotype expanding to non-polycomb target genes, induced by Epstein-Barr virus infection in human gastric cancer

Project description:This SuperSeries is composed of the following subset Series: GSE31787: Aberrant DNA methylation epigenotype expanding to non-polycomb target genes, induced by Epstein-Barr virus infection in human gastric cancer [Affymetrix Expression] GSE31788: Aberrant DNA methylation epigenotype expanding to non-polycomb target genes, induced by Epstein-Barr virus infection in human gastric cancer [Illumina Methylation] Refer to individual Series

2012-01-04 | E-GEOD-31789 | biostudies-arrayexpress

AGS cells infected with Epstein Barr Virus

2012-05-08 | GSE37753 | GEO

AGS cells infected with Epstein Barr Virus

Project description:Gene expression profile of AGS gastric carcinoma cell line infected in vitro with Epstein-Barr Virus. Some samples also contain are stably transfected with a dominant negative LMP1 construct. 8 total samples. 4 biological replicates of EBV infected cells, 2 biological replicates with EBV infected cells with LMP1DN construct, and 2 biological replicates with EBV infected cells with control vector.

2012-05-07 | E-GEOD-37753 | biostudies-arrayexpress

Ceramide Promotes Lytic Reactivation of Epstein-Barr Virus in Gastric Carcinoma

Project description:Epstein-Barr virus (EBV) has a lifelong latency period after initial infection. Rarely, however, when the EBV immediate early gene BZLF1 is expressed by a specific stimulus, the virus switches to the lytic cycle to produce progeny viruses. We found that EBV infection reduced levels of various ceramide species in gastric cancer cells. As ceramide is a bioactive lipid implicated in the infection of various viruses, we assessed the effect of ceramide on the EBV lytic cycle. Treatment with C6-ceramide (C6-Cer) induced an increase in the endogenous ceramide pool and increased production of the viral product as well as BZLF1 expression. Treatment with the ceramidase inhibitor ceranib-2 induced EBV lytic replication with an increase in the endogenous ceramide pool. The glucosylceramide synthase inhibitor Genz-123346 inhibited C6-Cer-induced lytic replication. C6-Cer induced ERK1/2 and CREB phosphorylation, c-JUN expression, and accumulation of the autophagosome marker LC3B. Treatment with MEK1/2 inhibitor U0126 or autophagy initiation inhibitor 3-MA suppressed C6-Cer-induced EBV lytic replication. In contrast, the autophagosome-lysosome fusion inhibitor chloroquine induced BZLF1 expression. Transfection with siCREB reduced ERK1/2 phosphorylation and C6-Cer-induced BZLF1 expression. On the other hand, siJUN transfection did not affect BZLF1 expression. Our results show that increased endogenous ceramide and glycosyl ceramide (GlyCer) following C6-Cer treatment induce EBV lytic replication in gastric cancer cells via ERK1/2 and CREB phosphorylation and autophagosome accumulation.

2023-12-20 | MTBLS7649 | MetaboLights

Ganciclovir Plus Arginine Butyrate in Treating Patients With Cancer or Lymphoproliferative Disorders Associated With the Epstein Barr Virus

Project description:RATIONALE: The Epstein Barr virus can cause cancer and lymphoproliferative disorders. Ganciclovir is an antiviral drug that acts against the Epstein Barr virus. Arginine butyrate may make virus cells more sensitive to ganciclovir. Combining ganciclovir and arginine butyrate may kill more Epstein Barr virus cells and tumor cells. PURPOSE: Phase I trial to study the effectiveness of arginine butyrate plus ganciclovir in treating patients who have cancer or lymphoproliferative disorders that are associated with the Epstein Barr virus.

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Genome-wide analysis of DNA hydroxymethylation and methylation during epstein-barr virus infection.

Project description:Extensive DNA methylation in promoter regions is observed in gastric cancer with Epstein-barr virus (EBV) infection and EBV infection is the cause to induce this extensive hypermethylaiton phenotype in gastric epithelial cells. From transcriptome analysis, we found that TET2, one of the demethylase enzymes, was downregulated by EBV infection in gastric epithelial cell line MKN7. TET2 was overexpressed in a gastric epithelial cell line, GES1, to see its function and the hydroxymethylation, a byproduct of DNA demethylation, acquired genes by TET2 overexpression and methylation acquired genes by EBV infection were significantly overlapped. These suggested that hydroxymethylation by TET2 could function to keep unmethylated status of genes before EBV infection, and TET2 depression could contribute to methylation acquisition of these target genes after EBV infection.

2017-04-28 | GSE84897 | GEO

The Epstein Barr virus circleRNAome

Project description:The Epstein Barr virus circleRNAome

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Epstein-Barr virus positive gastric cancer involves enhancer activation through ATF3

Project description:Epstein-Barr virus positive gastric cancer involves enhancer activation through ATF3

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Analysis of microRNA expression during Epstein-Barr virus encoded LMP1 and LMP2A transfected in TW03 cells

Project description:Epstein-Barr virus has been reported to regulate cellular microRNA expression in B cells. In the present study, we investigated the differential microRNAs modulated by Epstein-Barr virus in Naspharyngeal Carcinoma, using CapitalBio corporation's mammalian miRNA arrays. Three cellular models were used in this study: the human naspharyngeal carcinoma cell line TW03 as a blank control; TW03 transfected with Epstein-Barr virus encoded LMP1; TW03 transfected with Epstein-Barr virus encoded LMP2A

2011-01-13 | E-GEOD-26596 | biostudies-arrayexpress

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