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Analysis and experimental validation of genes and their transcription factor prediction in contused rat spinal cord
Zhongju Shi1, Tuo Fang1, Baoyou Fan1
1Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin, P.R. China.
Abstract:
The intermediate phase of spinal cord injury (SCI) serves as an important target site for therapeutic mediation of SCI. However, there is a lack of insight into the mechanism of the intermediate phase of SCI. The present study aimed to investigate the molecular mechanism and the feasible treatment targets in the intermediate phase of SCI. We downloaded GSE2599 from GEO and identified 416 significant differentially expressed genes (DEGs), including 206 downregulated and 210 upregulated DEGs. Further enrichment analysis of DEGs revealed that many important biological processes and signal pathways were triggered in the injured spinal cord. Furthermore, a protein-protein interaction (PPI) network was constructed and the top 10 high-degree hub nodes were identified. Furthermore, 27 predicted transcription factors (TFs) and 136 predicted motifs were identified. We then selected insulin-like growth factor 1 (IGF1) and its predicted transcription factor, transcription factor A, mitochondrial (TFAM) for further investigation. We speculated and preliminarily confirmed that TFAM may regulate gene transcription of IGF1 and effected alterations in the function recovery of rats after SCI. These findings together provide novel information that may improve our understanding of the pathophysiological processes during the intermediate phase of SCI.
Insights
Investigating the intermediate phase of spinal cord injury (SCI), this study identified key genes and pathways. TFAM may regulate IGF1, impacting functional recovery after SCI.
Area of Science:
- Neuroscience
- Genomics
- Molecular Biology
Background:
- The intermediate phase of spinal cord injury (SCI) is a critical period for therapeutic intervention.
- Understanding the molecular mechanisms during this phase is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the molecular mechanisms underlying the intermediate phase of SCI.
- To identify potential therapeutic targets for SCI treatment.
Main Methods:
- Utilized gene expression data (GSE2599) to identify differentially expressed genes (DEGs).
- Performed enrichment analysis, constructed a protein-protein interaction (PPI) network, and identified transcription factors (TFs) and motifs.
- Focused on insulin-like growth factor 1 (IGF1) and transcription factor A, mitochondrial (TFAM) for further investigation.
Main Results:
- Identified 416 significant DEGs (206 downregulated, 210 upregulated) in SCI.
- Revealed significant biological processes and signaling pathways involved in SCI.
- Identified TFAM as a potential regulator of IGF1, influencing functional recovery in SCI rat models.
Conclusions:
- TFAM's regulation of IGF1 offers a novel insight into SCI pathophysiology.
- These findings provide potential therapeutic targets for improving functional recovery after SCI.
