Septin 2 interacts with dengue virus replication complex proteins and participates in virus replication in mosquito cells.
Virology
; 570: 67-80, 2022 05.
Article
en En
| MEDLINE
| ID: mdl-35390695
Septins are a family of GTP-binding proteins identified in insects and mammals. Septins are components of the cytoskeleton and participate in cytokinesis, chromosomal segregation, intracellular vesicular traffic, and response to pathogens. Human septin 6 was identified as necessary for hepatitis C virus replication. Information about host factors necessary for flavivirus replication in mosquitoes is scarce. Thus, the role of septins in the replicative cycle of dengue virus in Aedes spp. derived cells was investigated. Through bioinformatic analysis, sequences of septin-like proteins were identified. Infected mosquito cells showed increased expression of Sep2. Colocalization analysis, proximity ligation and immunoprecipitation assays indicated that Sep2 interacts with proteins E, NS3 and NS5, but not NS1. Immunoelectron microscopy evidenced the presence of AalSep2 in replicative complexes. Finally, silencing of Sep2 expression resulted in a significant decrease in virus progeny, indicating that Sep2 is a host factor participating in dengue virus replication in mosquito cells.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Replicación Viral
/
Aedes
/
Dengue
/
Flavivirus
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Virology
Año:
2022
Tipo del documento:
Article
País de afiliación:
México
Pais de publicación:
Estados Unidos