Chandipura virus changes cellular miRNome in human microglial cells

Area of Science:

• Neurovirology
• Molecular Biology
• Immunology

Background:

• Chandipura virus (CHPV) is a neurotropic virus causing human encephalitis.
• MicroRNAs (miRNAs) are critical regulators in viral pathogenesis.
• Understanding miRNA roles in CHPV infection is crucial for neuroinflammation research.

Purpose of the Study:

• Investigate the role of differentially expressed miRNAs (DEMs) during CHPV infection in human microglial cells.
• Identify specific miRNA-mRNA interactions contributing to CHPV-induced neuroinflammation.

Main Methods:

• Deep sequencing of CHPV-infected human microglial cells to identify DEMs.
• Target gene prediction, Gene Ontology (GO) term, and pathway enrichment analysis.
• Weighted Gene Coexpression Network Analysis (WGCNA) and miRNA-mRNA interaction network construction.

Main Results:

• Identified 12 differentially expressed miRNAs (DEMs) in CHPV-infected cells.
• Enriched genes were associated with interferon response and cytokine/chemokine signaling.
• WGCNA revealed modules linked to neuroinflammation, with key miRNA-mRNA pairs identified (e.g., hsa-miR-542-3p/FAF1).

Conclusions:

• Specific miRNAs and their mRNA targets play a significant role in CHPV-induced neuroinflammation.
• The identified miRNA-mRNA interactions provide potential therapeutic targets for CHPV encephalitis.