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Updated: Aug 5, 2026
09:31
Generation of Induced-pluripotent Stem Cells Using Fibroblast-like Synoviocytes Isolated from Joints of Rheumatoid Arthritis Patients
Published on: October 16, 2016
Integrated Bulk and Single-Cell Transcriptomic Analysis Identifies a Reproducible SASP-Related Three-Gene Panel and
Jiang Zhang1, Ming Li1, Xuancheng Jin1
1Shenzhen University Health Science Center, Shenzhen University, Shenzhen 518060, China.
Genes
|July 28, 2026
Summary
Researchers identified a panel of three genes (RCAN1, IRF1, and CFB) as reproducible biomarkers related to the senescence-associated secretory phenotype in rheumatoid arthritis (RA). CFB was highlighted as a key fibroblast-associated marker for potential diagnostic use in RA.
Area of Science:
- Immunology and Rheumatology
- Molecular Biology and Genetics
- Cellular Senescence
Background:
- Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by synovial inflammation and fibroblast activation.
- Senescence-associated secretory phenotype (SASP) transcriptional programs are implicated in RA pathogenesis.
- Identifying reliable biomarkers for RA is crucial for understanding disease mechanisms and developing targeted therapies.
Purpose of the Study:
- To integrate bulk transcriptomic data with single-nucleus gene expression data in RA.
- To identify reproducible SASP-related candidate biomarkers.
- To prioritize fibroblast-associated signals within the RA synovial microenvironment.
Main Methods:
- Utilized SASP-score correlation, differential expression, and cross-cohort analyses on transcriptomic datasets (GSE89408, GSE77298, GSE243917).
- Performed single-nucleus transcriptomic characterization and predicted regulatory network analysis.
- Validated candidate gene expression using RT-qPCR in RA-related cell samples.
Main Results:
- Fibroblasts exhibited high SASP-related transcriptional scores in RA.
- A panel of RCAN1, IRF1, and CFB was identified as reproducibly elevated and associated with RA.
- The RCAN1/IRF1/CFB panel demonstrated strong predictive performance (AUC) in multiple cohorts, with CFB showing significant fibroblast association.
Conclusions:
- RCAN1, IRF1, and CFB constitute a reproducible SASP-related biomarker panel for rheumatoid arthritis.
- CFB is prioritized as a key fibroblast-associated marker.
- Further studies are needed to validate these findings at the protein level and in functional assays.
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