| Autor: |
Tatjana Reif, Gerhard Dyckhoff, Ralph Hohenberger, Carl-Christian Kolbe, Henning Gruell, Florian Klein, Eicke Latz, Bettina Stolp, Oliver T. Fackler |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Cell Reports Medicine, Vol 2, Iss 6, Pp 100317- (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2666-3791 |
| DOI: |
10.1016/j.xcrm.2021.100317 |
| Popis: |
Summary: 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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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