Title | Diverse Impacts of HIV Latency-Reversing Agents on CD8+ T-Cell Function: Implications for HIV Cure. |
Publication Type | Journal Article |
Year of Publication | 2018 |
Authors | Clutton GTyndale, R Jones B |
Journal | Front Immunol |
Volume | 9 |
Pagination | 1452 |
Date Published | 2018 |
ISSN | 1664-3224 |
Abstract | Antiretroviral therapy regimens durably suppress HIV replication, but do not cure infection. This is partially attributable to the persistence of long-lived pools of resting CD4+ T-cells harboring latent replication-competent virus. Substantial clinical and pre-clinical research is currently being directed at purging this viral reservoir by combining pharmacological latency reversal with immune effectors, such as HIV-specific CD8+ T-cells, capable of eliminating reactivated targets-the so-called "shock-and-kill" approach. However, several studies indicate that the latency-reversing agents (LRAs) may affect CD8+ T-cell function. The current review aims to frame recent advances, and ongoing challenges, in implementing "shock-and-kill" strategies from the perspective of effectively harnessing CD8+ T-cells. We review and contextualize findings indicating that LRAs often have unintended impacts on CD8+ T-cell function, both detrimental and beneficial. We identify and attempt to bridge the gap between viral reactivation, as measured by the detection of RNA or protein, and bona fide presentation of viral antigens to CD8+ T-cells. Finally, we highlight factors on the effector (CD8+) and target (CD4+) cell sides that contribute to whether or not infected-cell recognition results in killing/elimination. These perspectives may contribute to an integrated view of "shock-and-kill," with implications for therapeutic development. |
DOI | 10.3389/fimmu.2018.01452 |
Alternate Journal | Front Immunol |
PubMed ID | 29988382 |
PubMed Central ID | PMC6023971 |
Grant List | UM1 AI126619 / AI / NIAID NIH HHS / United States P30 AI117970 / AI / NIAID NIH HHS / United States P30 AI027763 / AI / NIAID NIH HHS / United States R01 CA031798 / CA / NCI NIH HHS / United States UM1 AI126617 / AI / NIAID NIH HHS / United States R21 MH112224 / MH / NIMH NIH HHS / United States R01 AI111860 / AI / NIAID NIH HHS / United States |