GEO DataSets

(Submitter supplied) mucosal biopsies were taken from patients at pre and post-argon plasma coagulation (APC) ablation of Barrett's oesophagus, and from healthy controls. Total RNA was extracted using Trizol. miRNA was reversed transcribed using a TaqMan® microRNA Reverse Transcription Kit (Life technologies, #4366596). miRNA profiling was performed with a high throughput TaqMan® OpenArray® Human microRNA panel (Life technologies, #4461104). more...

Organism:

Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL17485

57 Samples

Download data: TXT

(Submitter supplied) miR-223 is step-wise increasingly up-regulated in the normal esophagus - Barrett's esophagus -esophageal adenocarcinoma carcinoma sequence. In this study, we aimed to determine the function of miR-223 in esophageal adenocarcinoma carcinogenesis.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

4 Samples

Download data: TXT

(Submitter supplied) Samples were obtained from 8 patients with Barrett's associated adenocarcinomas after transhiatal esophagectomy. Samples representative of the normal esophageal epithelium (N), Barrett’s esophagus (B) and esophageal adenocarcinomas (ADC) were obtained from every patient by experienced GI pathologists. RNA were extracted and samples were profiled for detection of genes differentially expressed in B and ADC relative to N and in ADC relative to B. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS1321

Platform:

GPL96

24 Samples

Download data: CEL

Expression profiling of normal esophageal epithelium, premalignant Barrett's metaplasia, and esophageal adenocarcinoma samples. Tissue samples of each type obtained from 8 patients by transhiatal esophagectomy. Results identify potential markers of disease progression.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 disease state, 8 individual sets

Platform:

GPL96

Series:

GSE1420

24 Samples

Download data: CEL

(Submitter supplied) Esophageal adenocarcinoma (EAC) is a highly aggressive malignancy that frequently develops from Barrett’s esophagus (BE), a premalignant pathological change occurring in the lower end of esophagus. To identify BE patients at high risk of malignant transformation is essential to the prevention of EAC. Although microRNA (miRNA) expression signatures have been associated with the etiology and prognosis of several types of cancers, their roles in the development of EAC have not been extensively evaluated.

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL6955

32 Samples

Download data: TXT

(Submitter supplied) samples contain normal, Barrett and duodenum and adenocarcinoma BACKGROUND & AIMS: Barrett's esophagus is a precursor of esophageal adenocarcinoma. DNA microarrays that enable a genome-wide assessment of gene expression enhance the identification of specific genes as well as gene expression patterns that are expressed by Barrett's esophagus and adenocarcinoma compared with normal tissues. Barrett's esophagus length has also been identified as a risk factor for progression to adenocarcinoma, but whether there are intrinsic biological differences between short-segment and long-segment Barrett's esophagus can be explored with microarrays. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

4 related Platforms

48 Samples

Download data

(Submitter supplied) Exosomes were purified from 250 ul serum using ExoQuickTm. The presence of particles consistent in size with exosomes (60-150nm) was confirmed using a Nanosight LM10. miRNA was extracted from exosomes using an miRNeasy Serum/Plasma kit (Qiagen, #217184). miRNA was reversed transcribed using a TaqMan® microRNA Reverse Transcription Kit (Life technologies, #4366596). miRNA profiling was performed with a high throughput TaqMan® OpenArray® Human microRNA panel (Life technologies, #4461104). more...

Organism:

Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL17485

47 Samples

Download data: TXT

(Submitter supplied) To begin to identify genes involved in the transdifferentiation process we analyzed Barrett’s esophagus (with no dysplasia), normal esophagus and small intestine biopsy samples by Affymetrix microarray. Keywords: microarray expression analysis

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS3472

Platform:

GPL96

19 Samples

Download data: CEL

Analysis of Barrett's esophagus (BE), normal esophageal, and small intestinal biopsies. In BE, normal esophageal squamous epithelium transdifferentiates into simple columnar epithelium resembling that of small intestine. Results provide insight into the molecular basis of this transdifferentiation.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 2 disease state, 8 individual, 2 tissue sets

Platform:

GPL96

Series:

GSE13083

19 Samples

Download data: CEL

(Submitter supplied) Our mouse model of BE in which overexpression of IL-1b in the squamous esophagus induces chronic inflammation leads to metaplasia and dysplasia at the squamo-columnar junction (SCJ) in the mouse gastro-esophageal junction resembles the human disease. Adult L2-IL1b mice were employed to investigate changes to the transcriptional landscape at the SCJ during disease progression from BE to EAC following pharmaceutical or genetic perturbations of interest to BE biology.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL17400

48 Samples

Download data: CEL

(Submitter supplied) miRNAs were extracted from plasma samples of healthy volunteers, patients with Barrett’s esophagus and patients with esophageal adenocarcinoma. We used the Serum / Plasma Focus miRNA PCR panel (Exiqon, Denmark) to quantitate miRNA presence in the different patient groups.

Organism:

Homo sapiens

Type:

Other

Platform:

GPL17792

22 Samples

Download data: TXT

(Submitter supplied) Esophageal adenocarcinoma (EAC) has become a major concern in Western countries due to rapid rises in incidence coupled with very poor survival rates. One of the key risk factors for the development of this cancer is the presence of Barrett’s esophagus (BE), which is believed to form in response to repeated gastro-esophageal reflux. In this study we performed comparative, genome-wide expression profiling (using Illumina whole-genome Beadarray) on total RNA extracted from esophageal biopsy tissues from individuals with EAC, BE (in the absence of EAC) and those with normal squamous epithelium. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL2507

54 Samples

Download data: TXT

(Submitter supplied) To test the hypothesis that there are specific miRNA/UCR expression signature which characterizes Barrett's esophagus development and progression, we performed miRNA/UCR microarray analysis comparing normal esophageal squamous epithelium with all the phenotypic lesions seen in the Barrett's carcinogenic process

Organism:

Homo sapiens; Mus musculus

Type:

Non-coding RNA profiling by array

Platform:

GPL8871

51 Samples

Download data: GPR

(Submitter supplied) Identifying biomarkers predictive for early esophageal cancer detection is critical considering the dismal survival rates. We investigated the involvement of microRNAs (miRNAs), their utility as biomarkers, and their association with survival in esophageal cancer, including Barrett’s associated and sporadic adenocarcinoma (ADC), and squamous cell carcinoma (SCC). MiRNA expression was measured in cancerous and adjacent non-cancerous tissue pairs collected from 76 US and Japanese patients enrolled in 3 distinct cohorts. more...

Organism:

Mus musculus; Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL8835

152 Samples

Download data: GPR

(Submitter supplied) Exosomes were purified from 250 ul matched plasma and serum samples using ExoQuickTm. The presence of particles consistent in size with exosomes (60-150nm) was confirmed using a Nanosight LM10. miRNA was extracted from exosomes using an miRNeasy Serum/Plasma kit (Qiagen, #217184). miRNA was reversed transcribed using a TaqMan® microRNA Reverse Transcription Kit (Life technologies, #4366596). miRNA profiling was performed with a high throughput TaqMan® OpenArray® Human microRNA panel (Life technologies, #4461104). more...

Organism:

Homo sapiens

Type:

Other

Platform:

GPL18614

40 Samples

Download data: TXT

(Submitter supplied) Chemotherapy resistance adversely impacts the treatment of some individuals with esophageal cancer. Identifying chemotherapy resistance might help tailor clinical treatments. In this study the impact of microRNAs on chemotherapy resistance in esophageal cancer was investigated. We used microarrays to detail the global programme of microRNA expression underlying chemotherapy resistance and identified distinct classes of up-regulated microRNAs in generated chemotherapy resistant cell lines.

Organism:

synthetic construct; Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL8786

36 Samples

Download data: CEL

(Submitter supplied) Background & Aims: Tissue metaplasia is uncommon in adults because established cis-element programs resist rewiring. In Barrett’s esophagus, the distal esophageal mucosa acquires predominantly intestinal character, with notable gastric features, and is predisposed to develop invasive cancers. We sought to understand the chromatin underpinnings of Barrett’s metaplasia and why it commonly displays simultaneous gastric and intestinal properties. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL24676 GPL18573

40 Samples

Download data: BED, BW, MTX, TSV

(Submitter supplied) Gene expression profiling was performed using the total RNA isolated from pooled esophagi (plural of esophagus) of embryonic day 15.5 (E15.5) C57BL/6 mouse embryos and total RNA isolated from pooled esophagi of postnatal day 2 (P2) C57BL/6 pups. The goal was to identify differentially regulated genes in these two separate developmental stages.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL2872

1 Sample

Download data: TXT

(Submitter supplied) Histologically normal biopsies of the esophageal squamous epithelium were collected from consented individuals of either African American (AA) or American Caucasion (Cau) ethnicity. Total RNA was extracted and used to generate Affymetrix expression array profiles. For each racial group collected samples were either controls (no history of BE or EAC) or those with a history of BE (Barrett's Esophagus) and/or EAC (esophageal adenocarcinoma). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17692

40 Samples

Download data: CEL

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Expression profiling by RT-PCR

Platforms:

GPL13328 GPL6244

20 Samples

Download data: CEL