Efforts to eliminate the latent reservoir in resting CD4+ T cells: strategies for curing HIV-1 infection
نویسندگان
چکیده
Since the introduction of the first antiretroviral drug, zidovudine, in 1987, over 25 different antiretroviral agents from six different drug classes have been approved for the treatment of HIV-1 infection. Today, combination antiretroviral therapy (ART) is extremely effective in suppressing HIV-1 replication, providing durable control of the virus in adherent patients. However, despite the effectiveness of ART in blocking viral replication, HIV-1 infection cannot be cured by ART alone because HIV-1 establishes a state of latent infection in a small pool of resting, memory CD4+ T cells. Some new developments in the search for a cure are discussed.
منابع مشابه
Human immunodeficiency virus type 1 can establish latent infection in resting CD4+ T cells in the absence of activating stimuli.
Resting CD4(+) T cells are the best-defined reservoir of latent human immunodeficiency virus type 1 (HIV-1) infection, but how the reservoir is formed is unclear. Understanding how the reservoir of latently infected cells forms is critical because it is a major barrier to curing HIV infection. The system described here may provide an in vitro model of latent HIV-1 infection in resting CD4(+) T ...
متن کاملUpdate on HIV reservoirs
The stable latent reservoir for HIV-1 in resting memory CD4 T cells is a major barrier to curing HIV-1/AIDS. Studies on HIV-1 latency focused on regulation and reactivation of viral gene expression in the cells in which viral latent infection is already established. However, it is not well understood how virus becomes latent. In this study, we found that in a subset of memory precursor CD4 T ce...
متن کاملDisulfiram reactivates latent HIV-1 in a Bcl-2-transduced primary CD4+ T cell model without inducing global T cell activation.
Highly active antiretroviral therapy (HAART) can reduce plasma HIV-1 levels to below the detection limit. However, due to the latent reservoir in resting CD4(+) cells, HAART is not curative. Elimination of this reservoir is critical to curing HIV-1 infection. Agents that reactivate latent HIV-1 through nonspecific T cell activation are toxic. Here we demonstrate in a primary CD4(+) T cell model...
متن کاملStimulation of HIV-1-specific cytolytic T lymphocytes facilitates elimination of latent viral reservoir after virus reactivation.
Highly active antiretroviral therapy (HAART) suppresses HIV-1 replication but cannot eliminate the virus because HIV-1 establishes latent infection. Interruption of HAART leads to a rapid rebound of viremia, so life-long treatment is required. Efforts to purge the latent reservoir have focused on reactivating latent proviruses without inducing global T cell activation. However, the killing of t...
متن کاملLatency and viral persistence in HIV-1 infection.
HIV-1 infection can be controlled with combinations of antiretroviral drugs, an approach known as highly active antiretroviral therapy (HAART). In patients who respond well to HAART, viremia decreases to below the limits of detection, disease progression stops, and reconstitution of the immune system begins. For the first time since the beginning of the epidemic, the possibility of curing HIV-1...
متن کامل