Article ; Online: Strategies to target the central nervous system HIV reservoir.
Current opinion in HIV and AIDS
2024 Volume 19, Issue 3, Page(s) 133–140
Abstract: Purpose of the review: The central nervous system (CNS) is an hotspot for HIV persistence and may be a major obstacle to overcome for curative strategies. The peculiar anatomical, tissular and cellular characteristics of the HIV reservoir in the CNS may ...
| Abstract | Purpose of the review: The central nervous system (CNS) is an hotspot for HIV persistence and may be a major obstacle to overcome for curative strategies. The peculiar anatomical, tissular and cellular characteristics of the HIV reservoir in the CNS may need to be specifically addressed to achieve a long-term HIV control without ART. In this review, we will discuss the critical challenges that currently explored curative strategies may face in crossing the blood-brain barrier (BBB), targeting latent HIV in brain-resident myeloid reservoirs, and eliminating the virus without eliciting dangerous neurological adverse events. Recent findings: Latency reversing agents (LRA), broadly neutralizing monoclonal antibodies (bNabs), chimeric antigen receptor (CAR) T-cells, and adeno-associated virus 9-vectored gene-therapies cross the BBB with varying efficiency. Although brain penetration is poor for bNAbs, viral vectors for in vivo gene-editing, certain LRAs, and CAR T-cells may reach the cerebral compartment more efficiently. All these approaches, however, may encounter difficulties in eliminating HIV-infected perivascular macrophages and microglia. Safety, including local neurological adverse effects, may also be a concern, especially if high doses are required to achieve optimal brain penetration and efficient brain cell targeting. Summary: Targeting the CNS remains a potential problem for the currently investigated HIV curing strategies. In vivo evidence on CNS effectiveness is limited for most of the investigated strategies, and additional studies should be focused on evaluating the interplay between the cerebral HIV reservoir and treatment aiming to achieve an ART-free cure. |
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| MeSH term(s) | Humans ; Virus Latency ; HIV Infections/drug therapy ; Broadly Neutralizing Antibodies/pharmacology ; HIV-1/physiology ; Central Nervous System ; CD4-Positive T-Lymphocytes |
| Chemical Substances | Broadly Neutralizing Antibodies |
| Language | English |
| Publishing date | 2024-02-29 |
| Publishing country | United States |
| Document type | Review ; Journal Article |
| ZDB-ID | 2502511-9 |
| ISSN | 1746-6318 ; 1746-630X |
| ISSN (online) | 1746-6318 |
| ISSN | 1746-630X |
| DOI | 10.1097/COH.0000000000000847 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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