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Using Human Differentially Expressed Gene Lists to Perform Downstream Pathway Enrichment Analysis and Target Prioritization
Published on: October 3, 2025
783
Study on the differentially expressed genes and signaling pathways in dermatomyositis using integrated bioinformatics
Wei Liu1,2, Wen-Jia Zhao1, Yuan-Hao Wu1,2
1First Teaching Hospital of Tianjin University of Traditional Chinese Medicine.
Medicine
|August 28, 2020
Summary
This study identifies key genes and pathways involved in dermatomyositis pathogenesis using bioinformatics. Findings offer insights into molecular mechanisms for early detection and treatment of this connective tissue disease.
Area of Science:
- Immunology
- Genetics
- Bioinformatics
Background:
- Dermatomyositis is a complex connective tissue disease with an unclear pathogenesis.
- Understanding the molecular mechanisms is crucial for diagnosis and treatment.
Purpose of the Study:
- To explore and predict major disease-related genes in dermatomyositis.
- To identify the underlying pathogenic molecular mechanisms using bioinformatics.
Main Methods:
- Utilized gene expression data from the Gene Expression Omnibus database (GDS1956, GDS2153, GDS2855, GDS3417).
- Performed differential gene expression analysis, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis.
- Constructed protein-protein interaction networks using STRING database.
Main Results:
- Identified 4097 differentially expressed genes (DEGs), with 2213 upregulated and 1884 downregulated.
- GO analysis revealed enrichment in viral response, type I interferon signaling, and RNA binding.
- KEGG analysis highlighted pathways including toll-like receptor signaling, cytosolic DNA-sensing, and complement/coagulation cascades.
- Identified 13 key genes (e.g., XAF1, TLR3, STAT1) as critical nodes in the protein-protein interaction network.
Conclusions:
- Integrated bioinformatics analysis reveals key DEGs and pathways in dermatomyositis.
- Findings provide insights into the molecular mechanisms of dermatomyositis development.
- This research has implications for early detection, prophylaxis, and targeted therapies for dermatomyositis.
