GSE48958

Mucosal gene expression profiling in (un)inflamed colon of patients with ulcerative colitis (UC)

Whole-study status Not suitable

Dataset does not meet the current suitability threshold.

Whole-study downloads — these do not apply your sample requirements.

Selected cohort requirements

Samples meeting selected requirements: 0 cases / 0 controls

View matching samples

13 case / 8 control samples elsewhere in the study have incomplete or conflicting evidence; they are not included above

Patient pairs verified in indexed sample metadata: 0

A case/control comparison meeting these requirements is not confirmed.

Counts describe samples, not independent patients. Pair verification uses explicit subject identifiers in indexed sample metadata. Zero verified pairs does not establish that the study is unpaired; reported matched-normal design alone is insufficient.

Summary

In this study, we investigated if miRNA expression in UC mucosa is altered and correlated our findings with mucosal mRNA expression. Integration of mRNA and miRNA expression profiling may allow the identification of functional links between dysregulated miRNAs and their predicted target mRNA.

Overall design

Colonic mucosal biopsies were obtained during endoscopy from 13 UC (7 active and 6 inactive) patients and 8 normal controls. Total RNA was isolated from colonic mucosal biopsies, labelled and hybridized to Affymetrix Genechip Human Gene 1.0ST Arrays.

Source Evidence

4 sources
Source Contribution Status
GEO

Original dataset metadata, sample metadata, source links, and GEO data availability flags.

Sample records
21 GSM samples
Primary source
recount3

Planned trusted source for processed count availability.

No match found
Expression Atlas

Planned source for curated expression experiment links.

No match found
PubMed

Primary GEO citations and related PubMed articles that mention this dataset.

12 linked publications 11 DOIs

Primary publication

  1. Integrated miRNA and mRNA expression profiling in inflamed colon of patients with ulcerative colitis. PloS one, 2014

Related publications

  1. Integrative computational approach identifies immune-relevant biomarkers in ulcerative colitis. FEBS open bio, 2022
  2. The critical role of COL1A1 revealed by integrated bioinformatics analysis of differentially-expressed genes in colorectal cancer and inflammatory bowel disease. Computers in biology and medicine, 2025
  3. Identification of cholesterol homeostasis related genes and potential pathogenesis mechanisms in ulcerative colitis. The Journal of steroid biochemistry and molecular biology, 2025
  4. Study on the mechanism of action of HuaZhuoKeLi in modulating LCN2-mediated cellular pyroptosis to ameliorate ulcerative colitis. Scientific reports, 2026
  5. Identification of Differential Intestinal Mucosa Transcriptomic Biomarkers for Ulcerative Colitis by Bioinformatics Analysis. Disease markers, 2020
  6. Bioinformatics Analysis of Differentially Expressed Genes and Protein-Protein Interaction Networks Associated with Functional Pathways in Ulcerative Colitis. Medical science monitor : international medical journal of experimental and clinical research, 2021
  7. Identification and Experimental Validation of Oxidative Stress-Related Biomarkers in Ulcerative Colitis Using Machine Learning. Journal of inflammation research, 2025
  8. Identification of Differentially Expressed Genes and miRNAs for Ulcerative Colitis Using Bioinformatics Analysis. Frontiers in genetics, 2022
  9. Exploring the molecular characteristics of inflammatory bowel disease from the perspective of hypoxia-related genes. Frontiers in pharmacology, 2025
  10. Integrated Metabolomic and Transcriptomic Analyses Reveal Alterations in the Serotonergic Synapse Pathway and a Robust Diagnostic Model in Ulcerative Colitis. Metabolites, 2026
  11. Identification of Crucial Genes and Related Transcription Factors in Ulcerative Colitis. Annals of clinical and laboratory science, 2021
Available

Metadata Quality Components

Analysis Readiness

Review before analysis
97% DE readiness

Contrast completeness

25/25 pts

Both case and control groups are present in the proposed grouping.

Minimum group size

20/20 pts

Each contrast group has at least 2 samples.

Processed data availability

20/20 pts

Processed data is marked available in the GEO index.

Sample decision clarity

15/15 pts

All samples are assigned to a case or control group.

Blocking warnings

7/10 pts

Warnings are present, but none are critical blockers.

Metadata normalization

10/10 pts

Metadata quality is high enough to support downstream handoff.

Blockers

  • Secondary RNA assay context should be analyzed separately from ordinary bulk RNA-seq.

Next Steps

  • Review blockers and update sample grouping or dataset selection before analysis.

Analysis Preparation Checklist

5/6 ready

Group labels reviewed

Needs review

Siftome proposed case and control labels, but no reviewer confirmation is stored yet.

Open the sample grouping CSV and confirm group labels before analysis.

Minimum sample count met

Ready

Both groups meet the minimum of 2 samples.

Confirm whether the cohort is large enough for the intended statistical analysis.

Processed counts available

Ready

Processed data availability is marked true in the GEO index.

Verify that downloaded processed files contain usable count or expression identifiers.

Ambiguous samples handled

Ready

No review-needed or unassigned samples are present in the proposed grouping.

Review the grouping table for biologically meaningful differences that the automated checks may not detect.

Exclusion decisions recorded

Ready

No hard-excluded samples were detected by the current rules.

Record any manual exclusions in the downstream analysis notes.

Source traceability preserved

Ready

The dataset and sample accessions can be traced back to GEO.

Keep GEO accessions with exported metadata.

Bioinformatician Review

Bioinformatician review required

Ask a bioinformatician to review grouping, count availability, exclusions, and design before DE.

Analysis readiness has blockers that must be resolved before DE.

Assay context may require expert handling before DESeq2-style analysis.

Why This Is Ranked Here

Tumor vs normal
Not suitable Dataset does not meet the current suitability threshold.

Applied Review Decisions

No active review decisions affect this ranking.

Derived Classifications

  • Assay differs from search intent Microarray Search intent expects bulk RNA-seq. Assay came from Normalization rules.
  • Disease context Ulcerative colitis Disease context came from Normalization rules.
  • Likely case group Inflamed tissue 13 samples
  • Likely control group Control 8 samples

Intent Interpretation

  • Downgrade or exclusion reason Downgraded assay: microarray cohorts are separated from the RNA-seq intent. Derived from current-intent ranking reasons.

Ranking Facts

Supporting evidence

  • Comparison: Disease/model vs control. Specimen: Biopsy. Comparison suitability: 0%.
  • Interpreted disease metadata: Ulcerative colitis.
  • Processed data is available for downstream review.
  • External evidence: PubMed links 12 publications; 11 DOIs available: PMID 25546151, PMID 33144895, PMID 33462173, PMID 33941565, PMID 34939750.
  • Publication context: Integrated miRNA and mRNA expression profiling in inflamed colon of patients with ulcerative colitis.. PloS one, 2014. PMID 25546151. DOI 10.1371/journal.pone.0116117.
  • Publication context: Identification of Differential Intestinal Mucosa Transcriptomic Biomarkers for Ulcerative Colitis by Bioinformatics Analysis.. Disease markers, 2020. PMID 33144895. DOI 10.1155/2020/8876565.
  • Publication context: Bioinformatics Analysis of Differentially Expressed Genes and Protein-Protein Interaction Networks Associated with Functional Pathways in Ulcerative Colitis.. Medical science monitor : international medical journal of experimental and clinical research, 2021. PMID 33462173. DOI 10.12659/MSM.927917.
  • Publication context: 9 additional linked PubMed publications are available.

Cautions

  • Downgraded assay: microarray cohorts are separated from the RNA-seq intent.
  • Disease/control design without a tumor/normal comparison is outside tumor/normal triage.
  • Microarray expression context downgraded below primary bulk RNA-seq for the default tissue ranking.
  • Small RNA, miRNA, circRNA, or extracellular-vesicle RNA context downgraded for primary mRNA tissue ranking.
  • Overall score capped because comparison suitability is weak for the selected search intent.
  • Overall score capped because microarray cohorts should be compared separately from RNA-seq cohorts.
  • Comparison suitability score is below the Phase 1 recommended threshold.

Dataset Warnings

Normalized Fields

101 fields

Sample Group Preview

21 rows shown
Show Hide
Study totals: Case 13 | Control 8 | Unassigned 0 | Excluded 0 | Ambiguous 0 21 rows shown
Group Role Accession Title Source / characteristics Reason
Inflamed tissue Case GSM1187610 UC_active_1 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Inflamed tissue Case GSM1187611 UC_active_2 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Inflamed tissue Case GSM1187612 UC_active_3 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Inflamed tissue Case GSM1187613 UC_active_4 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Inflamed tissue Case GSM1187614 UC_active_6 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Inflamed tissue Case GSM1187615 UC_active_7 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Inflamed tissue Case GSM1187616 UC_active_9 [mRNA] Colonic mucosal biopsy from UC patient with active disease Tissue: Colon; Disease: UC; Disease activity: Active Explicit sample label case marker detected.
Ulcerative colitis Case GSM1187617 UC_inactive_1 [mRNA] Colonic mucosal biopsy from UC patient with inactive disease Tissue: Colon; Disease: UC; Disease activity: Inactive Case marker detected.
Ulcerative colitis Case GSM1187618 UC_inactive_2 [mRNA] Colonic mucosal biopsy from UC patient with inactive disease Tissue: Colon; Disease: UC; Disease activity: Inactive Case marker detected.
Ulcerative colitis Case GSM1187619 UC_inactive_3 [mRNA] Colonic mucosal biopsy from UC patient with inactive disease Tissue: Colon; Disease: UC; Disease activity: Inactive Case marker detected.
Ulcerative colitis Case GSM1187620 UC_inactive_4 [mRNA] Colonic mucosal biopsy from UC patient with inactive disease Tissue: Colon; Disease: UC; Disease activity: Inactive Case marker detected.
Ulcerative colitis Case GSM1187621 UC_inactive_5 [mRNA] Colonic mucosal biopsy from UC patient with inactive disease Tissue: Colon; Disease: UC; Disease activity: Inactive Case marker detected.
Ulcerative colitis Case GSM1187622 UC_inactive_6 [mRNA] Colonic mucosal biopsy from UC patient with inactive disease Tissue: Colon; Disease: UC; Disease activity: Inactive Case marker detected.
Control Control GSM1187602 Control_1 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187603 Control_2 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187604 Control_3 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187605 Control_4 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187606 Control_5 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187607 Control_7 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187608 Control_8 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.
Control Control GSM1187609 Control_10 [mRNA] Colonic mucosal biopsy from control individual Tissue: Colon; Disease: Control; Disease activity: Not applicable Sample-local control marker detected.

Use as Discovery Cohort

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Carry Siftome's disease, organism, specimen, assay, data type, and accession into a validation project. Uncertain fields remain Unknown.