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Published on: June 10, 2025
Identification and validation of platelet activation-related signatures in ulcerative colitis: a study based on
Lu Zhao1, Yang Liu2,3, Shuqing Wang4
1Digestive Disease Center, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
Frontiers in Immunology
|July 6, 2026
Summary
Platelet activation plays a role in ulcerative colitis (UC). Researchers identified SPARC, TIMP1, and SERPINA1 as key genes linked to UC, offering potential diagnostic and therapeutic insights.
Area of Science:
- Gastroenterology
- Immunology
- Molecular Biology
Background:
- Platelet activation (PA) is a critical link between thrombosis and inflammation.
- Ulcerative colitis (UC) involves complex immune dysregulation.
- Understanding PA-related genes in UC is crucial for therapeutic development.
Purpose of the Study:
- Identify key platelet activation-related genes (PARGs) in ulcerative colitis (UC).
- Explore the transcriptional associations of these genes with immune-stromal dysregulation in UC.
- Validate the identified genes as potential biomarkers for UC diagnosis and therapy.
Main Methods:
- Transcriptomic data analysis from UC patient cohorts (GEO database).
- Application of machine learning algorithms (WGCNA, LASSO, SVM-RFE, random forest) to identify key PARGs.
- Single-cell RNA sequencing (scRNA-seq) for gene expression localization and validation via qRT-PCR in a mouse model.
Main Results:
- Identified 22 PARGs in UC, associated with ECM remodeling and immune cell recruitment.
- Refined key genes to SPARC, TIMP1, and SERPINA1 using machine learning, showing high diagnostic accuracy (AUC > 0.8).
- Found SPARC, TIMP1, and SERPINA1 predominantly expressed in intestinal fibroblasts, correlating with pathogenic immune cell infiltration.
Conclusions:
- Platelet activation is implicated in the pathogenesis of UC.
- SPARC, TIMP1, and SERPINA1 are identified as potential diagnostic biomarkers for UC.
- These findings offer insights into UC diagnosis and the development of novel therapeutic strategies.
