Alpha-synuclein and RNA viruses: Exploring the neuronal nexus.

Alpha-synuclein (α-syn), known for its pivotal role in Parkinson's disease, has recently emerged as a significant player in neurotropic RNA virus infections. Upregulation of α-syn in various viral infections has been found to impact neuroprotective functions by regulating neurotransmitter synthesis, vesicle trafficking, and synaptic vesicle recycling. This review focuses on the multifaceted role of α-syn in controlling viral replication by modulating chemoattractant properties towards microglial cells, virus-induced ER stress signaling, anti-oxidative proteins expression. Furthermore, the text underlines the α-syn-mediated regulation of interferon-stimulated genes. The review may help suggest potential therapeutic avenues for mitigating the impact of RNA viruses on the central nervous system by exploiting α-syn neuroprotective biology. • Modulation of viral replication via synaptic plasticity. • Modulation of interferon (IFN) stimulated genes by alpha-synuclein. • Role of alpha-synuclein as a chemoattractant. • Alpha-Synuclein mediated Stress pathways and its regulation. [ABSTRACT FROM AUTHOR]