GEO DataSets

(Submitter supplied) 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).

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL21145

1 Sample

Download data: IDAT, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array; Methylation profiling by array

Platforms:

GPL8490 GPL570

84 Samples

Download data: CEL

(Submitter supplied) Aberrant promoter methylation is known to be deeply involved in human gastric carcinogenesis, while association of Epstein-Barr virus (EBV) to the aberrant methylation has not been fully clarified. We analyzed promoter methylation in clinical gastric cancer cases using illumina's Infinium beadarray, and hierarchical clustering analysis classified gastric cancer into three subgroups: low and high methylation epigenotypes in EBV-negative cases, and markedly higher methylation epigenotype that was completely matched to EBV-positive cases. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL8490

80 Samples

Download data: TXT

(Submitter supplied) Aberrant promoter methylation is known to be deeply involved in human gastric carcinogenesis, while association of Epstein-Barr virus (EBV) to the aberrant methylation has not been fully clarified. We analyzed promoter methylation in clinical gastric cancer cases using illumina's Infinium beadarray, and hierarchical clustering analysis classified gastric cancer into three subgroups: low and high methylation epigenotypes in EBV-negative cases, and markedly higher methylation epigenotype that was completely matched to EBV-positive cases. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

4 Samples

Download data: CEL

(Submitter supplied) Genome wide DNA methylation profiling of gastric cancer cell lines. The Illumina Goldengate DNA methylation Beadchip was used to obtain DNA methylation profiles across 1,505 CpG CpGs in 20 gastric cancer cell lines.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL9183

40 Samples

Download data: TXT

(Submitter supplied) ATF3 binding sites on the genome and histone modification arround the ATF3 binding sites were analized by ChIP-seq. Regulation of gene expression by ATF3 on active enhacer regions were analyzed by knocked down of ATF3.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL18573 GPL18460

12 Samples

Download data: BEDGRAPH, TXT

(Submitter supplied) We analysed epigenetic alterations by EBV infection especially at enhancer regions, to elucidate their contribution to tumorigenesis. We performed ChIP-seq on H3K4me3, H3K4me1, H3K27ac, H3K27me3 and H3K9me3 using gastric epithelial cells with or without EBV infection. We showed that repressive marks were redistributed after EBV infection, resulting in aberrant enhancer activation and repression. Enhancer dysfunction leads to activation of pathway related to cancer hallmarks (e.g. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL18460 GPL10999

6 Samples

Download data: BIGWIG

(Submitter supplied) Aberrant DNA hypermethylation is a major epigenetic mechanism to inactivate tumor suppressor genes in cancer, and Epstein-Barr virus (EBV) positive gastric cancer is known as the most frequently hypermethylated tumor among whole human malignancies. We here performed comprehensive analysis of epigenomic alteration during EBV infection, by Infinium HumanMethylation 450K BeadChip for DNA methylation and ChIP-sequencing for histone modification alteration. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL10999 GPL18460

6 Samples

Download data: BIGWIG

(Submitter supplied) Time-series comprehensive DNA methylation analysis after EBV infection in the immortalised normal gastric epithelial cell line, GES1, and low methylation gastric cancer cell line, MKN7. Infinium HumanMethylation450 BeadChip was used to obtain DNA methylation profiles across 485,577 CpG sites. Samples included 9 GES1 with and without EBV infection, 5 MKN7 with and without EBV infection, EBV+ gastric cancer cell and xenograft, SNU719 and KT, 2 normal gastric mucosae, 2 low-methylation gastric cancer cases, and 2 high-methylation gastric cancer cases.

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

22 Samples

Download data: TXT