Contact-dependent inhibition of HIV-1 replication in ex vivo human tonsil cultures by polymorphonuclear neutrophils.
Cell Rep Med
; 2(6): 100317, 2021 06 15.
Article
en En
| MEDLINE
| ID: mdl-34195682
ABSTRACT
Polymorphonuclear neutrophils (PMNs), the most abundant white blood cells, are recruited rapidly to sites of infection to exert potent anti-microbial activity. Information regarding their role in infection with human immunodeficiency virus (HIV) is limited. Here we report that addition of PMNs to HIV-infected cultures of human tonsil tissue or peripheral blood mononuclear cells causes immediate and long-lasting suppression of HIV-1 spread and virus-induced depletion of CD4 T cells. This inhibition of HIV-1 spread strictly requires PMN contact with infected cells and is not mediated by soluble factors. 2-Photon (2PM) imaging visualized contacts of PMNs with HIV-1-infected CD4 T cells in tonsil tissue that do not result in lysis or uptake of infected cells. The anti-HIV activity of PMNs also does not involve degranulation, formation of neutrophil extracellular traps, or integrin-dependent cell communication. These results reveal that PMNs efficiently blunt HIV-1 replication in primary target cells and tissue by an unconventional mechanism.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Tonsila Palatina
/
Leucocitos Mononucleares
/
Linfocitos T CD4-Positivos
/
VIH-1
/
Neutrófilos
Límite:
Humans
Idioma:
En
Año:
2021
Tipo del documento:
Article