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Establishment of Ferroptosis-Related Key Gene Signature and Its Validation in Compression-Induced Intervertebral Disc
Jiangbo Guo1,2, Yilin Yang1,2, Junjie Niu1,2
1Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China.
Oxidative Medicine and Cellular Longevity
|February 23, 2023
Summary
This study identifies six key ferroptosis genes involved in intervertebral disc degeneration (IDD). These findings offer potential new therapeutic targets for preventing and treating IDD by understanding cell death mechanisms.
Area of Science:
- Biomedical research
- Genomics
- Cell biology
Background:
- Intervertebral disc degeneration (IDD) involves cell death and loss of nucleus pulposus cell function.
- Ferroptosis, a distinct cell death pathway, is implicated in IDD but requires further investigation.
- Identifying key ferroptosis genes in IDD is crucial for developing targeted therapies.
Purpose of the Study:
- To identify key ferroptosis-related genes in human intervertebral disc degeneration (IDD).
- To explore the role of ferroptosis in IDD pathogenesis and its correlation with immune infiltration.
- To provide potential therapeutic targets for IDD treatment.
Main Methods:
- Bioinformatic analysis of human IDD mRNA microarray data from Gene Expression Omnibus (GEO) and ferroptosis genes from FerrDb.
- Identification of ferroptosis-related differentially expressed genes (FerrDEGs) and key gene signatures.
- Enrichment analysis, protein-protein interaction network construction, immune cell correlation analysis, and ceRNA network analysis.
- Validation of key ferroptosis gene expression in a rat model of compression-induced IDD.
Main Results:
- Identified 40 ferroptosis-related differentially expressed genes (FerrDEGs) in IDD.
- Discovered six key ferroptosis gene signatures: ATF3, EIF2S1, AR, NQO1, TXNIP, and AKR1C3.
- ATF3 and EIF2S1 demonstrated a strong correlation with immune cell function, potentially driving IDD development.
- Expression of key ferroptosis genes was confirmed in a rat IDD model.
Conclusions:
- Ferroptosis plays a significant role in the mechanism of intervertebral disc degeneration (IDD).
- The identified key ferroptosis genes, particularly ATF3 and EIF2S1, represent promising therapeutic targets for IDD.
- This study provides a foundation for further research into ferroptosis mechanisms in IDD and offers new avenues for prevention and treatment.
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