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<p>Bovine herpesvirus 1 (BoHV-1) productive infection stimulates β-catenin-dependent transcription to facilitate virus replication. Phosphoglycerate kinase 1 (PGK1), which catalyses the initial step of ATP production during glycolysis, also has a mitochondrial form that is implicated in tissue injury across various diseases. However, the relationship between BoHV-1 replication and the PGK1 signalling pathway is not yet fully understood. In this study, we discovered that PGK1 signalling significantly influences BoHV-1 replication, with the virus infection leading to a marked increase in the accumulation of PGK1 proteins in mitochondria. Overexpression of β-catenin reduces PGK1 steady-state protein levels while overexpressing PGK1 boosts β-catenin protein expression—a phenomenon that reverses upon virus infection. Importantly, consistent with PGK1’s vital role in virus replication, PGK1 stimulates β-catenin-dependent transcriptional activity, partly by promoting the nuclear accumulation of transcriptionally active β-catenin and phospho-β-catenin (S552) in virus-infected cells. In summary, our findings suggest for the first time that PGK1 signalling may be involved in BoHV-1 replication and contribute to virus pathogenicity.</p>

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PGK1 enhances productive bovine herpesvirus 1 infection by stimulating β-catenin-dependent transcription

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月7日

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  • Xuan Li,
  • Wenyuan Gu,
  • Shitao Li,
  • Filomena Fiorito,
  • Xiuyan Ding,
  • Liqian Zhu

摘要

Bovine herpesvirus 1 (BoHV-1) productive infection stimulates β-catenin-dependent transcription to facilitate virus replication. Phosphoglycerate kinase 1 (PGK1), which catalyses the initial step of ATP production during glycolysis, also has a mitochondrial form that is implicated in tissue injury across various diseases. However, the relationship between BoHV-1 replication and the PGK1 signalling pathway is not yet fully understood. In this study, we discovered that PGK1 signalling significantly influences BoHV-1 replication, with the virus infection leading to a marked increase in the accumulation of PGK1 proteins in mitochondria. Overexpression of β-catenin reduces PGK1 steady-state protein levels while overexpressing PGK1 boosts β-catenin protein expression—a phenomenon that reverses upon virus infection. Importantly, consistent with PGK1’s vital role in virus replication, PGK1 stimulates β-catenin-dependent transcriptional activity, partly by promoting the nuclear accumulation of transcriptionally active β-catenin and phospho-β-catenin (S552) in virus-infected cells. In summary, our findings suggest for the first time that PGK1 signalling may be involved in BoHV-1 replication and contribute to virus pathogenicity.