Inhibition of miR-274-3p increases BmCPV replication by regulating the expression of BmCPV NS5 gene in Bombyx mori.
Virus Genes
; 53(4): 643-649, 2017 Aug.
Article
de En
| MEDLINE
| ID: mdl-28493152
ABSTRACT
Bombyx mori cytoplasmic polyhedrosis virus (BmCPV) is one of the major pathogens that pose a big challenge to the sericulture industry. Growing evidences have shown that microRNAs play key roles in the regulations of host-pathogen interactions in insects. MicroRNAs have been found in silkworms, whether and how they affect the silkworm-BmCPV interactions are still unknown. Here we investigate the effect of miR-274-3p on the BmCPV replication in the BmCPV-infected silkworm larvae. In our study, BmCPV Nonstructural protein 5 (NS5) was identified to be the target of miR-274-3p based on bioinformatics analysis and luciferase reporter assay. The abundance of NS5 was significantly increased in the presence of miR-274-3p inhibitor based on the qRT-PCR and Western blotting results. Further, qRT-PCR results revealed that the expression of polyhedrin gene of BmCPV in the larvae after applying miR-274-3p inhibitor was significantly increased comparing with that of larvae with negative control. Our results suggest that inhibition of miR-274-3p could facilitate BmCPV replication by up-regulating BmCPV NS5 gene expression and are insightful for further exploring the interactions between silkworm and BmCPV.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Reoviridae
/
Bombyx
/
Réplication virale
/
Protéines virales non structurales
/
MicroARN
/
Interactions hôte-pathogène
Limites:
Animals
Langue:
En
Journal:
Virus Genes
Sujet du journal:
BIOLOGIA MOLECULAR
/
VIROLOGIA
Année:
2017
Type de document:
Article
Pays d'affiliation:
Chine