Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Ileal S100A9 expression distinguishes Crohn’s disease patients by age at diagnosis

ABSTRACT: Crohn’s disease (CD) is a debilitating gastrointestinal disorder that can impact the entirety of the GI tract. While substantial progress has been made in the medical management of CD, it remains incurable, frequently relapses, and is a significant financial and medical burden. The pathophysiology of CD is not well understood, but it is thought to arise in genetically susceptible individuals upon an environmental insult. Further elucidation of the disease etiology promises to expose additional therapeutic avenues, with the hope of reducing the burden of CD. One approach to understanding disease pathophysiology is to identify clinically relevant molecular disease subsets using transcriptomics. In this report, we use hierarchical clustering of the ileal transcriptomes of 34 patients to identify two CD subsets. Clinically, these clusters differed in the age of the patients at CD diagnosis, suggesting that age of disease onset impacts the pathophysiology of the disease. We found that the ileal transcriptomes of the early diagnosis cluster are enriched in inflammatory transcripts, including S100A9, which encodes a calprotectin subunit. Furthermore, levels of S100A9 distinguished individuals diagnosed before the age of 30 from those diagnosed after 30. Together, these findings suggest that medical management of CD patients should consider their age at diagnosis and therapeutic blockade of calprotectin may be beneficial in patients diagnosed earlier in life.

ORGANISM(S): Homo sapiens

PROVIDER: GSE151686 | GEO | 2022/06/02

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Ileal S100A9 expression distinguishes Crohn’s disease patients by age at diagnosis

Project description:Ileal S100A9 expression distinguishes Crohn’s disease patients by age at diagnosis

| PRJNA636953 | ENA

Developing biomarkers incorporating high throughput RNA, DNA, small RNA sequencing and protein expression in Inflammatory Bowel Disease using formalin-fixed, paraffin-embedded (FFPE) tissue samples.

Project description:This dataset includes RNA-seq data from ileal and colonic biopsies at time of diagnosis for treatment-naive, uncomplicated Crohn's disease (CD) patients and matched controls. This is includes 56 CD patients each for ileal and colonic tissue and for controls, 46 colonic samples and 45 ileal samples. Clinical characteristics such as development of complications, disease remission, or progression to surgery were recorded with a mean follow-up of 6 years.

2024-02-07 | GSE221161 | GEO

Characterization of H3K4me3 histone modifications in intestinal epithelial cells among healthy controls and newly-diagnosed pediatric Crohn's disease patients.

Project description:We report profiling of H3Kme3 histone modifications in intestinal epithelial cells from ileal endoscopic biopsies obtained from healthy controls and newly-diagnosed Crohn's disease (CD). We identified 1066 shared sites, corresponding to 1038 genes with increased H3K4me3 in CD, and 539 sites corresponding to 548 genes with reduced H3K4me3 in CD.

2018-10-30 | GSE117889 | GEO

Mucosal miRNA expression profiling in ileum of patients with Crohn's disease

Project description:In this study, we investigated miRNA expression profiles in ileal mucosa from CD patients in different settings (post-operative recurrent (POR) CD, newly diagnosed CD and late stage CD)) and controls.

2019-03-01 | GSE102127 | GEO

Mucosal gene expression profiling in ileum of patients with Crohn's disease

Project description:In this study, we investigated gene expression profiles in ileal mucosa from CD patients in different settings (post-operative CD (Rutgeerts score i0); post-operative recurrent CD (i1), post-operative recurrent CD (≥i2b), newly diagnosed CD and late stage CD)) and controls.

2019-03-01 | GSE102133 | GEO

Genetic influences on DNA methylation (mQTL) in pediatric Crohn's disease patients

Project description:Previously, we conducted an epigenome-wide study of DNA methylation (~850K sites) in peripheral blood at diagnosis and during follow-up from the RISK pediatric Crohn’s disease inception cohort and data are deposited in GEO with an access number GSE112611. We further followed up this study and identified here the genetic influence on ~850K DNAm sites (mQTL) in peripheral blood as well as newly added 41 ileal biopsies. All the ileal biopsies DNAm data are collected from the subset of primary 238 pediatric CD cohort that contains the peripheral blood DNAm data in GSE112611. Comparing the mQTL effect sizes among 164 CD cases at baseline, 164 CD cases at 3 years follow-up, 74 healthy controls and 41 ileal biopsies confirms that genetic influence on DNAm sites are strongly consistent among these groups. This study further concludes that the mQTLs are largely not disease-specific or inflammation-specific or tissue-specific.

2019-08-17 | GSE135905 | GEO

Profiling of Ileal Transcriptome in Pediatric Crohn Disease

Project description:We report ileal gene expression at diagnosis in a cohort of 210 treatment-naïve patients of pediatric Crohn's disease and 35 non-IBD controls from the RISK study. After three years of follow-up after diagnosis, 27 of the CD patients progressed to complicated disease (B2 and/or B3). We aim to test whether Transcriptional Risk Scores helps to distinguish between patient subgroups, improving the predictive power gained from Genetic Risk Scores.

2017-06-20 | GSE93624 | GEO

Core Ileal Transcriptome in Pediatric Crohn Disease

Project description:We report the global pattern of ileal gene expression in a cohort of 359 treatment-naïve pediatric Crohn Disease, Ulcerative Colitis patients and controls. We focus on genes with consistent altered expression in inflamed and unaffected ileum of CD [ileal-involved CD (iCD) and non-invloved ileal CD (cCD)], but not in the ileum of ulcerative colitis or control.

2014-07-24 | GSE57945 | GEO

Common and distinct pathophysiological processes associated to ileal and colonic ulcers in Crohn’s disease

Project description:Based on genetic risk factors and natural history, Crohn’s disease (CD) can be separated in two entities, an ileal and a colonic disease. Protein based-approaches are needed to elucidate whether such subphenotypes are related to distinct pathophysiological processes. In this work, we compared the proteome of ulcer edge to the one of paired control tissue in ileum and colon of CD patients. We revealed that ileal and colonic ulcer edge can be distinguished by a differential distribution of epithelial–mesenchymal transition proteins, neutrophil degranulation proteins and ribosomal proteins. In ileal and colonic ulcer edge, we found a quasi-systematic increase of the proteins implicated in the pathway of protein processing in endoplasmic reticulum and a quasi-systematic decrease of mitochondrial proteins. Our study provides for the first time protein-based evidences showing partly distinct pathophysiological processes associated to ileal and colonic ulcer edge in CD. This could constitute a first step toward the development of gut segment-specific diagnostic markers and therapeutics.

2019-07-15 | PXD012284 | Pride

Relating the transcriptome and microbiome by paired terminal ileal Crohn's disease

Project description:Management of terminal ileal Crohn's disease (CD) is difficult due to fibrotic prognosis and failure to achieve mucosal healing. A limited number of synchronous analyses have been conducted on the transcriptome and microbiome in unpaired terminal ileum tissues. Therefore, our study focused on the transcriptome and mucosal microbiome in terminal ileal tissues of CD patients with the aim of determining the role of cross-talk between the microbiome and transcriptome in the pathogenesis of terminal ileal CD. Mucosa-attached microbial communities were significantly associated with segmental inflammation status. Interaction-related transcription factors (TFs) are the panel nodes for crosstalk between the gene patterns and microbiome for terminal ileal CD. The transcriptome and microbiome in terminal ileal CD can be different related to local inflammatory status, and specific differentially expressed genes (DEGs) may be targeted for mucosal healing. TFs connect gene patterns with the microbiome by reflecting environmental stimuli and signals from microbiota.

2021-04-08 | GSE171244 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data