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

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

PROVIDER: PRJNA170979 | ENA |

REPOSITORIES: ENA

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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

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

2012-12-28 | GSE39490 | GEO

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 [MMASS]

2012-12-28 | GSE39599 | GEO

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

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

| PRJNA171219 | ENA

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

Project description:This SuperSeries is composed of the SubSeries listed below.

2012-12-28 | GSE39600 | GEO

Homo sapiens

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

| PRJNA171221 | ENA

Characterization of FOXD3 cofactors by BioID

Project description:FOXD3 is essential in embryonic stem cells, however the primary molecular mechanism is unclear. Here, we performed BioID to identify proteins collaborating with FOXD3 in protecting embryonic stem cell survival.

2023-05-08 | PXD035284 | Pride

FOXD3 is a novel tumor suppressor in lung cancer

Project description:The transcription factor forkhead box D3 (FoxD3) is a transcriptional factor which belongs to forkhead box (Fox) transcription factor family. The functions of FOXD3 in embryogenesis and in the development of neural crest cells have been clearly defined. Its tumor suppressor function hasbeen found in many types of cancer in recent years. However, the study about its roles in lung cancerdevelopment is still lacking. Our study found that deficiency of FoxD3 in lung cancer enhanced cell growth and cell invasion. RNA-sequence analysis demonstrated that loss of FoxD3 mainly affected cell cycle progression related gene expression. Knockdown of FoxD3 led to G2-M cell accumulation with up-regulation of DNA replication licensing factor MCM5 and MCM4 as well as cell cycle regulator polo-like kinase-1 (PLK1) and CDC6. Over-expression of those genesin lung cancer was associated with poor clinical outcomes of lung cancer patients. We also identified high mobility group box-1(HMGB1), Hras and Ephrin B1 gene expression increase after FoxD3 silencing which may participate in enhanced lung cancer cell invasion. Our study identifiedtumor suppressor function of FoxD3 in lung cancer andwe did the first comprehensive analysis of the genes regulated by FoxD3 for cell proliferation and invasion in lung cancer. The identified genes regulated by FoxD3 through our analysis will provide valuable information to uncover the mechanism of FoxD3 tumor suppressor function.

2015-12-24 | GSE64513 | GEO

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