Antigen Presenting Cell-Mediated HIV-1 Trans Infection in the Establishment and Maintenance of the Viral Reservoir
Main Article Content
Abstract
Despite potent antiretroviral therapy (ART), an HIV-1 reservoir persists that represents a major barrier to a cure. Understanding the mechanisms by which the HIV-1 reservoir is established and maintained is critical for the discovery of effective treatments to significantly reduce or eliminate the viral reservoir. In addition to cis infection, in which HIV-1 directly infects target CD4+ T cells, cell-to-cell transmission, or trans infection, can also occur. HIV-1 trans infection is significantly more efficient than cis infection, mostly due to the occurrence of multiple infections per cell during transfer. Additionally, trans infection is efficient even in the presence of ART and/or neutralizing antibodies. Cell-to-cell transmission is mediated by CD4+ T cells and professional antigen presenting cells (APC). Here we focus on APC, i.e., myeloid dendritic cells, B lymphocytes, and monocytes/macrophages, that bind, internalize, and transfer HIV-1 to target CD4+ T cells via various proposed mechanisms. We assess the potential impact of trans infection on the establishment and maintenance of the HIV-1 reservoir including its role in disease progression. We consider the natural interactions between APC and CD4+ T cells in vivo that HIV-1 may hijack, allowing for the highly efficient trans infection of CD4+ T cells, maintaining the viral reservoirs in tissue despite undetectable plasma viral loads in peripheral blood. We propose that these modes of viral pathogenesis need to be addressed in potential cure strategies to ensure eradication of the viral reservoir.
Article Details
How to Cite
GERBERICK, Abigail; RINALDO, Charles R; SLUIS-CREMER, Nicolas.
Antigen Presenting Cell-Mediated HIV-1 Trans Infection in the Establishment and Maintenance of the Viral Reservoir.
Medical Research Archives, [S.l.], v. 11, n. 7.1, july 2023.
ISSN 2375-1924.
Available at: <https://esmed.org/MRA/mra/article/view/4064>. Date accessed: 21 nov. 2024.
doi: https://doi.org/10.18103/mra.v11i7.1.4064.
Section
Research Articles
The Medical Research Archives grants authors the right to publish and reproduce the unrevised contribution in whole or in part at any time and in any form for any scholarly non-commercial purpose with the condition that all publications of the contribution include a full citation to the journal as published by the Medical Research Archives.
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