Exploring the role of EBV in multiple sclerosis pathogenesis through EBV interactome.

Area of Science:

• Neuroimmunology
• Virology
• Genetics

Background:

• Epstein-Barr virus (EBV) is a known risk factor for multiple sclerosis (MS), but its precise role in pathogenesis remains unclear.
• Cytomegalovirus (CMV) exhibits a protective association with MS, contrasting with EBV's risk factor status.
• Understanding the molecular interplay between viruses and the immune system is crucial for elucidating MS pathophysiology.

Purpose of the Study:

• To identify genes associated with MS that overlap with the Epstein-Barr virus (EBV) interactome.
• To investigate the expression patterns of these overlapping genes in various immune and glial cell subtypes.
• To explore the potential roles of EBV and CMV in MS pathogenesis.

Main Methods:

• Utilized P-HIPSTer, Genome-Wide Association Studies (GWAS), and the Human Protein Atlas (HPA) for data acquisition.
• Employed R packages (geneOverlap, dplyr) to identify overlapping genes between EBV interactome and MS-associated genes.
• Conducted pathway analysis (Metascape) and gene expression analysis (GTEx, transcriptomics) on publicly available datasets.

Main Results:

• Identified a core set of 21 genes significantly shared across EBV interactome, MS genes, and immune/glial cells.
• Pathway analysis highlighted immune system activation and the prolactin signaling pathway.
• Observed differential gene expression in specific cell types: BCL2 and MINK1 upregulated in astrocytes and microglia, respectively, while AHI1 was downregulated in MS.

Conclusions:

• The study provides novel insights into the interactions between EBV, CMV, and host cells in the context of MS.
• Findings may illuminate previously unknown molecular mechanisms contributing to MS development and progression.
• Highlights the potential of targeting viral-host interactions for future therapeutic strategies in MS.