PUBLICATION

An imidazole coumarin derivative enhances the antiviral response to spring viremia of carp virus infection in zebrafish

Authors
Liu, L., Hu, Y., Lu, J., Wang, G.
ID
ZDB-PUB-190119-9
Date
2019
Source
Virus research   263: 112-118 (Journal)
Registered Authors
Keywords
Coumarin, IFN, Oxidative stress, SVCV, response
MeSH Terms
  • Animals
  • Antiviral Agents/administration & dosage*
  • Antiviral Agents/chemistry
  • Antiviral Agents/pharmacokinetics
  • Coumarins/administration & dosage*
  • Coumarins/chemistry
  • Coumarins/pharmacokinetics
  • Disease Models, Animal
  • Half-Life
  • Imidazoles/administration & dosage*
  • Imidazoles/chemistry
  • Immunity, Innate/drug effects
  • Immunologic Factors/administration & dosage*
  • Immunologic Factors/chemistry
  • Immunologic Factors/pharmacokinetics
  • Rhabdoviridae/isolation & purification*
  • Rhabdoviridae Infections/drug therapy*
  • Rhabdoviridae Infections/virology
  • Survival Analysis
  • Treatment Outcome
  • Viral Load
  • Zebrafish
PubMed
30658072 Full text @ Virus Res.
Abstract
As an efficient pathogen resulting in economic impact in aquaculture, spring viremia of carp virus (SVCV) causes devastating disease in cyprinids. Based on the previous study that 7-(6-(2-methyl-imidazole))-coumarin (D5) exhibited anti-SVCV activity in fish cells, we hypothesized that D5 may be useful as a potential therapeutic agent for controlling SVCV infection in vivo. In this study, we verified that D5 inhibited SVCV replication in zebrafish, with reducing 22.5% mortality of SVCV-infected fish. Further data suggested that coumarin D5 was more stable with a prolonged inhibitory half-life in the early stage of virus infection (1 to 4 days). Consistent with above results, D5 decreased the viral titer in fish body and repressed SVCV glycoprotein gene expression in virus sensitive tissues (kidney and spleen) in the early stage of virus infection. In addition, the results replied that D5 elicited an innate immune response in non-viral infected zebrafish by up-regulating the expression of interferon genes (IFNγ, IFNφ1, IFNφ2 and RIG-1). D5 also enhanced the levels of antioxidant-related gene transcription and enzyme activities in SVCV-infected zebrafish, suggesting that D5 exhibited an antioxidant protection on fish by keeping the balance of redox state. Therefore, D5 is a potential therapeutic agent for the devastating fish rhabdovirus infections.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping