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Published on: March 15, 2024
Microarray Data Analysis of Molecular Mechanism Associated with Stroke Progression
Hongmei Zhang1, Qiying Zhang2, Zuning Liao3
1Department of Neurology, Fourth People's Hospital of Jinan, No. 50 Shifan Road, Tianqiao District, Jinan, 250031, Shandong Province, China.
Abstract:
This study aimed to explore the molecular mechanism of stroke and provide a new target in the clinical management. The miRNA dataset GSE97532 (3 blood samples from middle cerebral artery occlusion (MCAO) and 3 from sham operation) and mRNA dataset GSE97533 (3 blood samples from MCAO and 3 from sham operation) were obtained from GEO database. Differentially expressed mRNA (DEGs) and miRNAs (DEMIRs) were screened out between MCAO and sham operation groups. Then, DEMIR-DEG interactions were explored and visualized using Cytoscape software. Moreover, the enrichment analysis was performed on these DEMIRs and DEGs. Furthermore, protein-protein interaction (PPI) network was constructed. Finally, the DEG-target transcription factors (TFs) were investigated using the WebGestal software. The current bioinformatics analysis revealed 38 DEMIRs and 546 DEGs between MCAO and sham operation groups. The DEMIR-DEG analysis revealed 370 relations, such as miR-107-5p-Furin. The top 10 up- and downregulated DEMIRs were mainly enriched in pathways like cAMP signaling pathway. The PPI network analysis revealed 2 modules. The target DEGs of the 10 up- and downregulated DEMIRs in 2 modules were mainly assembled in functions like ATP binding and pathway including ABC transporters. Furthermore, the DEG-TF network analysis identified 5 outstanding TFs including androgen receptor (AR). miR107-5p might take part in the progression of stroke via inhibiting the expression of Furin. TFs like AR might be used as a novel gene therapy target for stroke. Furthermore, cAMP signaling pathway and ATP binding function might be a novel breakthrough for stroke treatment.
Insights
This study identifies key molecular players in stroke, revealing miR-107-5p and androgen receptor as potential therapeutic targets for stroke treatment.
Area of Science:
- Neuroscience
- Genomics
- Bioinformatics
Background:
- Stroke is a leading cause of death and disability worldwide.
- Understanding the molecular mechanisms underlying stroke is crucial for developing effective treatments.
Purpose of the Study:
- To explore the molecular mechanisms of stroke using bioinformatics.
- To identify novel molecular targets for clinical management of stroke.
Main Methods:
- Analysis of miRNA (GSE97532) and mRNA (GSE97533) datasets from middle cerebral artery occlusion (MCAO) and sham operation models.
- Screening for differentially expressed genes (DEGs) and miRNAs (DEMIRs).
- Exploration of DEMIR-DEG interactions, pathway enrichment, protein-protein interaction (PPI) network construction, and transcription factor (TF) analysis.
Main Results:
- Identified 38 DEMIRs and 546 DEGs between MCAO and sham groups.
- Revealed 370 DEMIR-DEG interactions, including miR-107-5p-Furin.
- Top DEMIRs enriched in cAMP signaling pathway; target DEGs involved in ATP binding and ABC transporters.
- Identified androgen receptor (AR) as a key TF.
Conclusions:
- miR-107-5p may influence stroke progression by inhibiting Furin expression.
- AR and cAMP signaling pathway represent potential novel therapeutic targets for stroke.
- ATP binding functions may offer new avenues for stroke treatment.
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