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Updated: Oct 4, 2025
Detection of MicroRNAs in Microglia by Real-time PCR in Normal CNS and During Neuroinflammation
Published on: July 23, 2012
Identification of miRNAs and their potential effects on multiple sclerosis related pathways using ın silico analysis
Burcin Erkal1, Senay Vural Korkut1
1Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul, Turkey.
Background:
MicroRNAs (miRNAs) regulate gene expression post-transcriptionally via mRNA degradation. As a result, they have an impact on a variety of pathways in organisms that are important for both health and disease. miRNAs can be used as potential diagnostic, prognostic and therapeutic biomarkers for immune and nervous system-related diseases such as MS.
Method:
Differentially expressed miRNAs from peripheral blood samples of patient and control groups were selected from NCBI GEO Datasets using GEO2R. Common miRNAs and their related pathways were analyzed using miRNet, miRWalk, DIANA mirpath, KEGG pathway. Target genes and their protein-protein interactions were also evaluated using STRING and GeneMANIA.
Results:
We found 12 common miRNAs, four of which were determined to be more important in MS-related pathways such as the immune and neural signaling networks. These include pathways neurotrophin, JAK-STAT, B cell receptor, ErbB, MAPK, Fc gamma R-mediated phagocytosis, Chemokine and T cell receptor signaling pathways. Moreover, target gene analyses were performed and MAPK1, PIK3CD, PIK3R1, PIK3R2, PIK3R3, PIK3R5, AKT2, SOS2, RAF1 genes were found. Further analysis showed that the identified genes and related pathways have interactions at multiple points, and that the overlapping points are commonly found in the PI3K-Akt signaling pathway.
Conclusion:
In this paper, MS-related miRNAs and their potential effects on related pathways were evaluated. This study can be used for understanding MS pathogenesis and provides new tools for the discovery of new therapies.
Insights
MicroRNAs (miRNAs) are key regulators of gene expression and potential biomarkers for multiple sclerosis (MS). This study identified crucial miRNAs and pathways involved in MS pathogenesis, offering new therapeutic targets.
Area of Science:
- Genomics
- Molecular Biology
- Biomarker Discovery
Background:
- MicroRNAs (miRNAs) post-transcriptionally regulate gene expression, influencing health and disease pathways.
- miRNAs show potential as diagnostic, prognostic, and therapeutic biomarkers for immune and nervous system diseases, including multiple sclerosis (MS).
Purpose of the Study:
- To evaluate MS-related microRNAs (miRNAs) and their impact on associated biological pathways.
- To identify potential biomarkers and therapeutic targets for understanding MS pathogenesis.
Main Methods:
- Differentially expressed miRNAs were identified from peripheral blood samples using NCBI GEO Datasets and GEO2R.
- Pathway analysis was conducted using miRNet, miRWalk, DIANA mirpath, and KEGG.
- Target gene and protein-protein interaction analyses were performed using STRING and GeneMANIA.
Main Results:
- Twelve common miRNAs were identified, with four significantly associated with MS-related immune and neural signaling pathways.
- Key pathways implicated include neurotrophin, JAK-STAT, B cell receptor, ErbB, MAPK, Fc gamma R-mediated phagocytosis, Chemokine, and T cell receptor signaling.
- Target gene analysis revealed MAPK1, PIK3CD, PIK3R1, PIK3R2, PIK3R3, PIK3R5, AKT2, SOS2, and RAF1, with significant overlap in the PI3K-Akt signaling pathway.
Conclusions:
- This study elucidates MS-related miRNAs and their functional pathways.
- The findings provide insights into MS pathogenesis and suggest novel tools for therapeutic development.
