27.02.2024 | Review
HIV-1 Myeloid Reservoirs — Contributors to Viral Persistence and Pathogenesis
verfasst von:
Edna A. Ferreira, Janice E. Clements, Rebecca T. Veenhuis
Erschienen in:
Current HIV/AIDS Reports
|
Ausgabe 2/2024
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Abstract
Purpose of Review
HIV reservoirs are the main barrier to cure. CD4+ T cells have been extensively studied as the primary HIV-1 reservoir. However, there is substantial evidence that HIV-1-infected myeloid cells (monocytes/macrophages) also contribute to viral persistence and pathogenesis.
Recent Findings
Recent studies in animal models and people with HIV-1 demonstrate that myeloid cells are cellular reservoirs of HIV-1. HIV-1 genomes and viral RNA have been reported in circulating monocytes and tissue-resident macrophages from the brain, urethra, gut, liver, and spleen. Importantly, viral outgrowth assays have quantified persistent infectious virus from monocyte-derived macrophages and tissue-resident macrophages.
Summary
The myeloid cell compartment represents an important target of HIV-1 infection. While myeloid reservoirs may be more difficult to measure than CD4+ T cell reservoirs, they are long-lived, contribute to viral persistence, and, unless specifically targeted, will prevent an HIV-1 cure.