Malaria abrogates O'nyong-nyong virus pathologies by restricting virus infection in nonimmune cells.
Life Sci Alliance
; 5(4)2022 04.
Article
em En
| MEDLINE
| ID: mdl-35039441
O'nyongnyong virus (ONNV) is a re-emerging alphavirus previously known to be transmitted by main malaria vectors, thus suggesting the possibility of coinfections with arboviruses in co-endemic areas. However, the pathological outcomes of such infections remain unknown. Using murine coinfection models, we demonstrated that a preexisting blood-stage Plasmodium infection suppresses ONNV-induced pathologies. We further showed that suppression of viremia and virus dissemination are dependent on Plasmodium-induced IFNγ and are associated with reduced infection of CD45- cells at the site of virus inoculation. We further proved that treatment with IFNγ or plasma samples from Plasmodium vivax-infected patients containing IFNγ are able to restrict ONNV infection in human fibroblast, synoviocyte, skeletal muscle, and endothelial cell lines. Mechanistically, the role of IFNγ in restricting ONNV infection was confirmed in in vitro infection assays through the generation of an IFNγ receptor 1 α chain (IFNγR1)-deficient cell line.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Infecções por Alphavirus
/
Coinfecção
/
Vírus O'nyong-nyong
/
Malária
Limite:
Animals
Idioma:
En
Revista:
Life Sci Alliance
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Singapura