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CNS Persistence of HIV-1 in Children: the Untapped Reservoir
Ann Chahroudi1, Thor A Wagner2, Deborah Persaud3
1Emory University School of Medicine, Atlanta, GA, USA.
Insights
The central nervous system (CNS) is a reservoir for HIV-1 in children infected perinatally. Targeting this reservoir is crucial for developing remission strategies and improving neurocognitive outcomes in youth.
Area of Science:
- Neuroscience
- Immunology
- Virology
Background:
- Perinatal HIV-1 infection impacts brain development.
- HIV-1 establishes a reservoir in the CNS, complicating treatment.
- Neurocognitive impairment persists despite antiretroviral therapy (ART).
Purpose of the Study:
- To review current literature on HIV-1 and the CNS in perinatally infected children.
- To understand HIV-1 persistence in the CNS for remission strategies.
- To improve long-term neurocognitive outcomes in perinatally HIV-1-infected youth.
Main Methods:
- Literature review of studies on HIV-1 and CNS in perinatal infection.
- Analysis of findings on HIV-1 compartmentalization between plasma and cerebrospinal fluid (CSF).
- Examination of reported cases of CSF viral escape.
Main Results:
- HIV-1-associated encephalopathy is common in perinatally infected children.
- CNS viral compartmentalization suggests a reservoir, even in ART-naïve individuals.
- CSF viral escape is observed, but requires further investigation with robust parameters.
Conclusions:
- The CNS is a significant HIV-1 reservoir in perinatally infected children.
- Targeting the CNS reservoir is essential for effective HIV-1 remission strategies.
- Further research is needed to understand CNS HIV-1 persistence and improve neurocognitive outcomes.
Purpose Of Review:
The central nervous system (CNS) represents a potential HIV-1 reservoir that may need to be specifically targeted by remission strategies. Perinatally HIV-1-infected children and youth are exposed to HIV-1 at a critical period of brain development. This review summarizes the current literature regarding HIV-1 and the CNS in perinatal infection.
Recent Findings:
HIV-1-associated encephalopathy is prevalent with perinatal infection and neurocognitive impairment persists even following antiretroviral treatment (ART)-mediated suppression of viremia. Compartmentalization of HIV-1 between plasma and CSF of ART-naïve, perinatally infected children suggests the presence of a CNS reservoir; however, similar studies have not yet been conducted with ART suppression. CSF viral escape where CSF and plasma virus concentrations are discordant has been reported in this population, but larger studies with well-defined virologic and immunologic parameters are needed. A better understanding of HIV-1 persistence in the CNS with perinatal infection is essential for improving long-term neurocognitive outcomes and for designing strategies to induce HIV-1 remission in this population.
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