GSE224758

Gene expression profiling of colon biopsies from ulcerative colitis patients and healthy volunteers

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

16 case / 6 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

Genome-wide transcriptional profiling of colonic biopsies endoscopically acquired from the rectosigmoid area of healthy donors and UC patients.

Overall design

Biopsies were sampled from 6 healthy donors who lacked completely mucosal inflammation both histologically and endoscopically and from 16 UC patients with evidence of active disease.

Source Evidence

4 sources
Source Contribution Status
GEO

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

Sample records
22 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.

5 linked publications 5 DOIs

Related publications

  1. METTL3/YTHDF1 drives M1 macrophage polarization and aggravates ulcerative colitis progression by regulating m6A modification of SerpinB5 mRNA and FBXO32-dependent NF-κB pathway. Journal of gastroenterology, 2026
  2. An Integrative analysis of single-cell RNA-seq, transcriptome and Mendelian randomization for the Identification and validation of NAD(+) Metabolism-Related biomarkers in ulcerative colitis. International immunopharmacology, 2025
  3. CTLA-4 expressing innate lymphoid cells modulate mucosal homeostasis in a microbiota dependent manner. Nature communications, 2024
  4. From Gene Expression to Candidate Biomarkers in Ulcerative Colitis: Aquaporin-9 in Neutrophil Extracellular Traps Formation Pathways. Iranian journal of medical sciences, 2026
  5. Predicting novel biomarkers for early diagnosis and dynamic severity monitoring of human ulcerative colitis. Frontiers in genetics, 2024
Available

Metadata Quality Components

Analysis Readiness

Ready after review
100% 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

10/10 pts

No dataset warnings are present.

Metadata normalization

10/10 pts

Metadata quality is high enough to support downstream handoff.

Blockers

No readiness blockers detected.

Next Steps

  • Verify the proposed sample assignments and case-versus-control comparison against the GEO metadata before using them in DESeq2 or another differential-expression tool.
  • Confirm processed count files and sample identifiers match the exported metadata.

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

Standard analyst review

Proceed only after the analyst confirms grouping, exclusions, and source files.

By Siftome standards, no expert review was triggered.

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

  • Disease context Ulcerative colitis Disease context came from Normalization rules.
  • Likely case group Ulcerative colitis 16 samples
  • Likely control group Healthy control 6 samples

Ranking Facts

Supporting evidence

  • Comparison: Disease/model vs control. Specimen: Biopsy. Comparison suitability: 0%.
  • Prioritized assay: bulk RNA-seq is the active assay expectation.
  • Interpreted disease metadata: Ulcerative colitis.
  • Processed data is available for downstream review.
  • External evidence: PubMed links 5 publications; 5 DOIs available: PMID 39144720, PMID 39496592, PMID 39647286, PMID 41485180, PMID 42370017.
  • Publication context: Predicting novel biomarkers for early diagnosis and dynamic severity monitoring of human ulcerative colitis.. Frontiers in genetics, 2024. PMID 39144720. DOI 10.3389/fgene.2024.1429482.
  • Publication context: CTLA-4 expressing innate lymphoid cells modulate mucosal homeostasis in a microbiota dependent manner.. Nature communications, 2024. PMID 39496592. DOI 10.1038/s41467-024-51719-6.
  • Publication context: An Integrative analysis of single-cell RNA-seq, transcriptome and Mendelian randomization for the Identification and validation of NAD(+) Metabolism-Related biomarkers in ulcerative colitis.. International immunopharmacology, 2025. PMID 39647286. DOI 10.1016/j.intimp.2024.113765.
  • Publication context: 2 additional linked PubMed publications are available.

Cautions

  • Disease/control design without a tumor/normal comparison is outside tumor/normal triage.
  • Overall score capped because comparison suitability is weak for the selected search intent.
  • Comparison suitability score is below the Phase 1 recommended threshold.

Dataset Warnings

No dataset warnings

Normalized Fields

108 fields

Sample Group Preview

22 rows shown
Show Hide
Study totals: Case 16 | Control 6 | Unassigned 0 | Excluded 0 | Ambiguous 0 22 rows shown
Group Role Accession Title Source / characteristics Reason
Ulcerative colitis Case GSM7031376 Ulcerative colitis colon biopsy, rep 1 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031377 Ulcerative colitis colon biopsy, rep 2 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031378 Ulcerative colitis colon biopsy, rep 3 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031382 Ulcerative colitis colon biopsy, rep 4 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031383 Ulcerative colitis colon biopsy, rep 5 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031384 Ulcerative colitis colon biopsy, rep 6 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031385 Ulcerative colitis colon biopsy, rep 7 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031386 Ulcerative colitis colon biopsy, rep 8 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031387 Ulcerative colitis colon biopsy, rep 9 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031391 Ulcerative colitis colon biopsy, rep 10 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031392 Ulcerative colitis colon biopsy, rep 11 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031393 Ulcerative colitis colon biopsy, rep 12 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031394 Ulcerative colitis colon biopsy, rep 13 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031395 Ulcerative colitis colon biopsy, rep 14 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031396 Ulcerative colitis colon biopsy, rep 15 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Ulcerative colitis Case GSM7031397 Ulcerative colitis colon biopsy, rep 16 Colon Tissue: Colon; Condition: Active ulcerative colitis Case marker detected.
Healthy control Control GSM7031379 Healthy colon biopsy, rep 1 Colon Tissue: Colon; Condition: Healthy Sample-local control marker detected.
Healthy control Control GSM7031380 Healthy colon biopsy, rep 2 Colon Tissue: Colon; Condition: Healthy Sample-local control marker detected.
Healthy control Control GSM7031381 Healthy colon biopsy, rep 3 Colon Tissue: Colon; Condition: Healthy Sample-local control marker detected.
Healthy control Control GSM7031388 Healthy colon biopsy, rep 4 Colon Tissue: Colon; Condition: Healthy Sample-local control marker detected.
Healthy control Control GSM7031389 Healthy colon biopsy, rep 5 Colon Tissue: Colon; Condition: Healthy Sample-local control marker detected.
Healthy control Control GSM7031390 Healthy colon biopsy, rep 6 Colon Tissue: Colon; Condition: Healthy Sample-local control marker detected.

Use as Discovery Cohort

External Validation Finder

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