PUBLICATION

Silencing Asian Seabass gab3 Inhibits Nervous Necrosis Virus Replication

Authors
Yang, Z., Yu, Y., Wang, L., Wong, S.M., Yue, G.H.
ID
ZDB-PUB-221018-42
Date
2022
Source
Marine biotechnology (New York, N.Y.)   24(6): 1084-1093 (Journal)
Registered Authors
Yue, Gen Hua
Keywords
CRISPR-Cas9, GAB3, Knockdown, NNV, Resistance
MeSH Terms
  • Animals
  • Bass*/genetics
  • Fish Diseases*
  • Necrosis
  • Nodaviridae*/physiology
  • Perciformes*
  • RNA Virus Infections*/genetics
  • Virus Replication
  • Zebrafish
PubMed
36227511 Full text @ Mar. Biotechnol.
Abstract
The nervous necrosis virus (NNV) causes the viral nervous necrosis (VNN) disease in aquatic animals and has been a major threat in aquaculture. Thus, it is essential for the development of a prevention method to minimize economic losses caused by NNV such as the identification of NNV resistance genes and application of these genes in molecular breeding to increase disease resistance. gab3 is an important NNV resistance gene in Asian seabass. However, the mechanism of gab3 in NNV resistance has not been elucidated. In this study, knockdown of gab3 in NNV-infected Asian seabass cells resulted in a significant decrease in viral RNA and virus titers. Knockout of gab3 in zebrafish led to an increased survival rate and resistant time after NNV infection. Cellular localization of the GAB3 and NNV by immunofluorescence staining showed that the GAB3 was translocated from the nucleus to the cytoplasm, and finally reached the cell membrane of SB cells after 48 h post NNV infection. Our study suggests that gab3 plays an important role in NNV replication and silencing gab3 can inhibit virus replication.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping