Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Transcription profiling of human ileum and colonic tissues from patients with Crohns disease or ulcerative colitis

ABSTRACT: Samples for microarray analysis were derived from terminal ileum and colonic tissues from probands with Crohn's disease and Ulcerative Colitis and control patients, respectively. IBD tissue biopsies from non-inflamed regions 10 cm distant from pathological areas were selected. To minimize inter-individual differences in gene expression and to enrich for IBD-specific transcriptional events, 2.5 Âµg of total RNA from terminal ileum and colon transversum from four individuals of each patient and control group were used for pooling.

ORGANISM(S): Homo sapiens

DISEASE(S): Crohn's disease

SUBMITTER: Thomas Langmann

PROVIDER: E-GEOD-1152 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Aberrant intestinal expression and allelic variants of mucin genes associated with inflammatory bowel disease.

Moehle Christoph C Ackermann Nikolaus N Langmann Thomas T Aslanidis Charalampos C Kel Alexander A Kel-Margoulis Olga O Schmitz-Madry Anna A Zahn Alexandra A Stremmel Wolfgang W Schmitz Gerd G

Journal of molecular medicine (Berlin, Germany) 20061021 12

Loss of intestinal mucosa integrity is an important factor in the pathogenesis of inflammatory bowel disease (IBD). The aim of this study was to characterize expression changes and allelic variants of genes related to intestinal epithelial barrier function in this disease. Therefore, ileal and colonic mucosal biopsies from nonaffected regions of patients with ulcerative colitis (UC) and Crohn's disease (CD), as well as non-IBD probands, were subjected to Affymetrix DNA-microarray analysis. Real- ...[more]

PMID: 17058067

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Project description:Human intestinal epithelial organoids (IEO) culture models are rapidly emerging as novel experimental tools to investigate fundamental aspects of intestinal epithelial (patho)physiology. Cellular source and culture protocols vary between different IEO models and reliable markers for their characterization/validation are currently limited. DNA methylation has been demonstrated to play a key role in regulating gene expression and cellular function. This epigenetic mark is comparably stable and has been shown to reflect cellular identity such as tissue origin, developmental stage and age. Our genome wide DNA methylation datasets of purified human epithelium represent a unique resource, which can be used by other researchers to validate their model systems We provide the following datasets of genome-wide DNA methylation profiling by Infinium HumanMethylation450 BeadChip: Purified intestinal epithelial cells (EpCAM+) from paediatric ileum and colon, Non-epithelial mucosal cells (EpCAM-), Whole colonic mucosal biopsies, Intestinal organoid cultures from paediatric ileum and colon, Purified intestinal epithelial cells (EpCAM+) from foetal small intestine and foetal large intestine, Intestinal organoid cultures from foetal small intestine and foetal large intestine, Intestinal organoid cultures derived from induced pluripotent stem cells. Note: Some samples in this data set were previously submitted to ArrayExpress under accession number E-MTAB-3709. They're clearly marked in the âDescriptionâ field in sample annotations. Information about batch effect during sample handling is included in the experimental variable âblockâ. Batch effect is not massive but present, so it is recommended that batch correction is carried out in data analysis. Complementary RNA-seq data on the purified cells and organoids can be found in ArrayExpress at E-MTAB-5015 ( https://www.ebi.ac.uk/arrayexpress/experiments/E-MTAB-5015/ ).

Dataset Information

Transcription profiling of human ileum and colonic tissues from patients with Crohns disease or ulcerative colitis

Publications

Aberrant intestinal expression and allelic variants of mucin genes associated with inflammatory bowel disease.

Similar Datasets

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