Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Helicobacter pylori-mediated Epigenetic Dysregulation of FOXD3 Tumor-suppressive Cascade In Gastric Carcinogenesis

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE39600 | GEO | 2012/12/28

SECONDARY ACCESSION(S): PRJNA171219

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Helicobacter pylori-mediated Epigenetic Dysregulation of FOXD3 Tumor-suppressive Cascade In Gastric Carcinogenesis

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2012-12-28 | E-GEOD-39600 | biostudies-arrayexpress

Helicobacter pylori-mediated Epigenetic Dysregulation of FOXD3 Tumor-suppressive Cascade In Gastric Carcinogenesis [MMASS]

Project description:Promoter hypermethylation occurs in human gastric cancers, but whether the deregulated genes contribute to the multi-step Helicobacter pylori (H pylori)-induced gastric carcinogenesis remains unclear. We used Microarray-based Methylation Assessment of Single Samples (MMASS) to identify differential methylated genes in 10 human gastric cancer tissues. Two-condition experiment, gastric cancers from patients (n = 5 per group) who survived 5 years or more (long-term survivors group) and who died of disease prior to 5 years (short-term survivors group)

2012-12-28 | E-GEOD-39599 | biostudies-arrayexpress

Helicobacter pylori-mediated Epigenetic Dysregulation of FOXD3 Tumor-suppressive Cascade In Gastric Carcinogenesis [ChIP]

Project description:Forkhead box (Fox) proteins constitute an evolutionarily conserved family of transcriptional regulators whose deregulations lead to tumorigenesis. However, their regulation and function in gastric cancer are unknown. Promoter hypermethylation occurs during Helicobacter pylori (H pylori)-induced gastritis, but whether the deregulated genes contribute to the multi-step gastric carcinogenesis remains unclear. FOXD3 was found to be hypermethylated in a mouse model of H pylori infection and possess tumor-suppressive functions in gastric cancer cell lines. In order to characterize the direct targets of FOXD3 that confer its actions, we performed ChIP-chip in N87 gastric cancer cell line which express low level of FOXD3 in the nuclei of a sub-population of cells. Promoter hypermethylation occurs during Helicobacter pylori (H pylori)-induced gastritis, but whether the deregulated genes contribute to the multi-step gastric carcinogenesis remains unclear. We used MethylCap-microarray to identify hypermethylated genes in a mouse model of H pylori infection. human Samples: Human gastric tumor cell line, N87 was grown in RPMI1640 supplemented with 10% fetal bovine serum. ChIP assays were performed using anti-FOXD3 antibody. The immunoprecipitated-FOXD3 and -IgG DNA were used to probe the Agilent human ChIP-chip arrays. mouse Samples: Two-condition experiment, H pylori-infected vs. control gastric tissues. 2 dye-swap replicates.

2012-12-28 | E-GEOD-39490 | biostudies-arrayexpress