ArticleVirulence2026
PLIN3-triggered lipophagic flux releases FFAs to facilitate CSFV propagation.
Article in Virulence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Viruses hijack host metabolic resources for replication. Previous studies have shown that classical swine fever virus (CSFV) infection induces host lipid metabolic reprogramming.However, research into the exact regulatory mechanisms between CSFV and lipid metabolism remains limited. Lipophagy refers to the degradation of lipid droplet contents to release free fatty acids(FFAs), CSFV induces autophagy to promote its replication, the regulatory mechanism between CSFV and lipophagy is unclear. In this study, we found that lipid droplets(LDs) initially accumulate and then decrease following CSFV infection. Autophagy activity was negatively correlated with lipid drople levels. Subsequent experiments revealed that CSFV induces lipophagy in Hepatic stellate cells(HSCs)and upregulates perilipin3(PLIN3) expression, a LD-associated protein that facilitates viral replication. Further studies demonstrated that PLIN3 activates the AMPK signaling pathway to promote lipophagy-mediated FFAs release. This FFA increase could be blocked by autophagy inhibitors. Notably, exogenous FFA addition reversed the shPLIN3-induced impairment of CSFV replication. Overall, this finding provides new insights into the mechanisms of virus-host lipid metabolism interactions.
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