iScience (Apr 2024)

Identification and verification of the role of key metabolites and metabolic pathways on ASFV replication

  • Zunji Shi,
  • Xing Yang,
  • Xijuan Shi,
  • Dajun Zhang,
  • Dengshuai Zhao,
  • Yu Hao,
  • Jinke Yang,
  • Xintian Bie,
  • Wenqian Yan,
  • Guohui Chen,
  • Lingling Chen,
  • Xiangtao Liu,
  • Haixue Zheng,
  • Keshan Zhang

Journal volume & issue
Vol. 27, no. 4
p. 109345

Abstract

Read online

Summary: African swine fever virus (ASFV) infection usually causes viremia within a few days. However, the metabolic changes in pig serum after ASFV infection remain unclear. In this study, serum samples collected from ASFV-infected pigs at different times were analyzed using pseudotargeted metabolomics method. Metabolomic analysis revealed the dopaminergic synapse pathway has the highest rich factor in both ASFV5 and ASFV10 groups. By disrupting the dopamine synaptic pathway, dopamine receptor antagonists inhibited ASFV replication and L-dopa promoted ASFV replication. In addition, guanosine, one of the top20 changed metabolites in both ASFV5 and ASFV10 groups suppressed the replication of ASFV. Taken together, this study revealed the changed serum metabolite profiles of ASFV-infected pigs at various times after infection and verified the effect of the changed metabolites and metabolic pathways on ASFV replication. These findings may contribute to understanding the pathogenic mechanisms of ASFV and the development of target drugs to control ASF.

Keywords