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Persistent HIV-infected cells in cerebrospinal fluid are associated with poorer neurocognitive performance
Serena Spudich, … , Alyssa Vecchio, John W. Mellors
Serena Spudich, … , Alyssa Vecchio, John W. Mellors
Published July 15, 2019
Citation Information: J Clin Invest. 2019;129(8):3339-3346. https://doi.org/10.1172/JCI127413.
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Clinical Research and Public Health AIDS/HIV Immunology

Persistent HIV-infected cells in cerebrospinal fluid are associated with poorer neurocognitive performance

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Abstract

BACKGROUND Persistence of HIV in sanctuary sites despite antiretroviral therapy (ART) presents a barrier to HIV remission and may affect neurocognitive function. We assessed HIV persistence in cerebrospinal fluid (CSF) and associations with inflammation and neurocognitive performance during long-term ART.METHODS Participants enrolled in the AIDS Clinical Trials Group (ACTG) HIV Reservoirs Cohort Study (A5321) underwent concurrent lumbar puncture, phlebotomy, and neurocognitive assessment. Cell-associated HIV DNA and HIV RNA (CA-DNA, CA-RNA) were measured by quantitative PCR (qPCR). in peripheral blood mononuclear cells (PBMCs) and in cell pellets from CSF. In CSF supernatant and blood plasma, cell-free HIV RNA was quantified by qPCR with single copy sensitivity, and inflammatory biomarkers were measured by enzyme immunoassay.RESULTS Sixty-nine participants (97% male, median age 50 years, CD4 696 cells/mm3, plasma HIV RNA <100 copies/mL) were assessed after a median 8.6 years of ART. In CSF, cell-free RNA was detected in 4%, CA-RNA in 9%, and CA-DNA in 48% of participants (median level 2.1 copies/103 cells). Detection of cell-free CSF HIV RNA was associated with higher plasma HIV RNA (P = 0.007). CSF inflammatory biomarkers did not correlate with HIV persistence measures. Detection of CSF CA-DNA HIV was associated with worse neurocognitive outcomes including global deficit score (P = 0.005), even after adjusting for age and nadir CD4 count.CONCLUSION HIV-infected cells persist in CSF in almost half of individuals on long-term ART, and their detection is associated with poorer neurocognitive performance.FUNDING This observational study, AIDS Clinical Trials Group (ACTG) HIV Reservoirs Cohort Study (A5321), was supported by the National Institutes of Health (NIAID and NIMH).

Authors

Serena Spudich, Kevin R. Robertson, Ronald J. Bosch, Rajesh T. Gandhi, Joshua C. Cyktor, Hanna Mar, Bernard J. Macatangay, Christina M. Lalama, Charles Rinaldo, Ann C. Collier, Catherine Godfrey, Joseph J. Eron, Deborah McMahon, Jana L. Jacobs, Dianna Koontz, Evelyn Hogg, Alyssa Vecchio, John W. Mellors

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