GSE134087

Analysis of differential expression profiles of Long noncoding RNA in peripheral blood of patients with active rheumatoid arthritis

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

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

we studied the expression profile of lncRNA in peripheral blood of patients with active RA LncRNA and mRNA expression in peripheral blood from two activity RA patients and two healthy donors were analyzed with microarray profiling. peripheral blood of five active RA patients and five healthy control members were collected. Quantitative real-time PCR was further used to screen and verify the expression of lncRNA to verify the expression of the selected lncRNA; perform bioinformatics analysis to study the potential function of the differentially expressed genes, construct a receiver operating characteristic (ROC) curve to evaluate the clinical diagnostic value of the identified lncRNA, and use correlation analysis to explore the relationship between aberrantly expressed lncRNA that may have diagnostic value and clinical indicators.

Overall design

Two RA patients were used as the RA group, and two healthy people were used as the control group, and 6 ml of peripheral blood were collected respectively.,then perform LncRNAs chips by Arraystar Human LncRNAs chip (Arraystar)

Source Evidence

4 sources
Source Contribution Status
GEO

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

Sample records
4 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.

2 linked publications 2 DOIs

Primary publication

  1. Differential long non-coding RNA expression profiles in the peripheral blood and CD4(+) T cells of patients with active rheumatoid arthritis. Experimental and therapeutic medicine, 2020

Related publications

  1. Identification and preliminary validation of synovial tissue-specific genes and their-mediated biological mechanisms in rheumatoid arthritis. International immunopharmacology, 2023
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.

Small cohort warning is present.

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 Rheumatoid arthritis Disease context came from Normalization rules.
  • Likely case group Rheumatoid arthritis 2 samples
  • Likely control group Healthy control 2 samples

Intent Interpretation

  • Downgrade or exclusion reason Downgraded for tissue search because it is a biofluid cohort. Derived from current-intent ranking reasons.

Ranking Facts

Supporting evidence

  • Comparison: Patient biofluid vs healthy control. Specimen: Biofluid. Comparison suitability: 0%.
  • Interpreted disease metadata: Rheumatoid arthritis.
  • Processed data is available for downstream review.
  • External evidence: PubMed links 2 publications; 2 DOIs available: PMID 32509015, PMID 36940554.
  • Publication context: Differential long non-coding RNA expression profiles in the peripheral blood and CD4(+) T cells of patients with active rheumatoid arthritis.. Experimental and therapeutic medicine, 2020. PMID 32509015. DOI 10.3892/etm.2020.8681.
  • Publication context: Identification and preliminary validation of synovial tissue-specific genes and their-mediated biological mechanisms in rheumatoid arthritis.. International immunopharmacology, 2023. PMID 36940554. DOI 10.1016/j.intimp.2023.109997.

Cautions

  • Downgraded for tissue search because it is a biofluid cohort.
  • Downgraded assay: microarray cohorts are separated from the RNA-seq intent.
  • Blood, plasma, or serum cohort downgraded because this ranking targets tissue tumor-vs-normal comparisons.
  • Microarray expression context downgraded below primary bulk RNA-seq for the default tissue ranking.
  • Overall score capped because comparison suitability is weak for the selected search intent.
  • Overall score capped because fewer than six samples are too small for top-ranked cohort confidence.
  • 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

24 fields

Sample Group Preview

4 rows shown
Show Hide
Study totals: Case 2 | Control 2 | Unassigned 0 | Excluded 0 | Ambiguous 0 4 rows shown
Group Role Accession Title Source / characteristics Reason
Rheumatoid arthritis Case GSM3936838 Peripheral blood_RA_rep1-1 Peripheral blood_RA_rep1-1 Tissue: Whole blood; Gender: Male; Diagnosis: Rheumatoid arthritis Explicit sample label case marker detected.
Rheumatoid arthritis Case GSM3936839 Peripheral blood_RA_rep1-2 Peripheral blood_RA_rep1-2 Tissue: Whole blood; Gender: Female; Diagnosis: Rheumatoid arthritis Explicit sample label case marker detected.
Healthy control Control GSM3936840 Peripheral blood_HC_rep1-1 Peripheral blood_HC_rep1-1 Tissue: Whole blood; Gender: Male; Diagnosis: Healthy control Sample-local control marker detected.
Healthy control Control GSM3936841 Peripheral blood_HC_rep1-2 Peripheral blood_HC_rep1-2 Tissue: Whole blood; Gender: Female; Diagnosis: Healthy control 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.