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Synergetic contributions of Seneca Valley virus 3 C and 3D proteins to induction of ferroptosis for viral replication
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Synergetic contributions of Seneca Valley virus 3 C and 3D proteins to induction of ferroptosis for viral replication
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Journal Article
Synergetic contributions of Seneca Valley virus 3 C and 3D proteins to induction of ferroptosis for viral replication
2025
Overview
Seneca Valley virus (SVV) infection leads to severe vesicular diseases in pigs, posing a significant threat to the global swine industry. Ferroptosis, a novel form of non-apoptotic cell death, is characterized by iron-dependent phospholipid peroxidation. However, the role of ferroptosis in SVV replication remains poorly understood. In this study, we demonstrate that SVV infection induces ferroptosis, as evidenced by lipid peroxidation, reactive oxygen species (ROS) accumulation, and glutathione (GSH) depletion. The GPX4 and nuclear receptor coactivator 4 (NCOA4)-mediated ferritinophagy are key contributors to ferroptosis induction. Furthermore, our findings reveal that the SVV 3 C proteinase (3C
pro
) targets the GPX4 for degradation, thereby promoting ferroptosis. Simultaneously, the SVV 3D protein enhances the NCOA4-FTH1 interaction, leading to increased ferritin degradation and subsequent ferritinophagy. Notably, inhibition of ferroptosis significantly reduces SVV replication and its associated inflammatory effects. Collectively, these results elucidate the intricate molecular mechanisms underlying SVV-induced ferroptosis, highlighting the synergistic roles of 3C
pro
and 3D in activating ferroptotic pathways and presenting potential targets for therapeutic intervention in SVV infections.
Publisher
Springer International Publishing,Springer Nature B.V,Springer
Subject
/ Biomedical and Life Sciences
/ Ferritin
/ GPX4
/ Humans
/ Lipids
/ NCOA4
/ Nuclear Receptor Coactivators - metabolism
/ Original
/ Phospholipid Hydroperoxide Glutathione Peroxidase - metabolism
/ Picornaviridae Infections - metabolism
/ Picornaviridae Infections - virology
/ Plasmids
/ Proteins
/ Reactive Oxygen Species - metabolism
/ Swine
/ Viruses
