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© Michaela Muller-Trutwin
HIV
Publication : PloS one

Impact of early cART on HIV blood and semen compartments at the time of primary infection

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in PloS one - 14 Jul 2017

Chéret A, Durier C, Mélard A, Ploquin M, Heitzmann J, Lécuroux C, Avettand-Fenoël V, David L, Pialoux G, Chennebault JM, Müller-Trutwin M, Goujard C, Rouzioux C, Meyer L,

Link to Pubmed [PMID] – 28708873

PLoS ONE 2017;12(7):e0180191

BACKGROUND: HIV-infected cells in semen facilitate viral transmission. We studied the establishment of HIV reservoirs in semen and blood during PHI, along with systemic immune activation and the impact of early cART.

METHODS: Patients in the ANRS-147-OPTIPRIM trial received two years of early cART. Nineteen patients of the trial were analyzed, out of which 8 had acute PHI (WB ≤1 Ab). We quantified total cell-associated (ca) HIV-DNA in blood and semen and HIV-RNA in blood and semen plasma samples, collected during PHI and at 24 months of treatment.

RESULTS: At enrollment, HIV-RNA load was higher in blood than in semen (median 5.66 vs 4.22 log10 cp/mL, p<0.0001). Semen HIV-RNA load correlated strongly with blood HIV-RNA load (r = 0.81, p = 0.02, the CD4 cell count (r = -0.98, p<0.0001), and the CD4/CD8 ratio (r = -0.85, p<0.01) in acute infection but not in later stages of PHI. Median blood and seminal cellular HIV-DNA levels were 3.59 and 0.31 log10cp/106 cells, respectively. HIV-DNA load peaked in semen later than in blood and then correlated with blood IP10 level (r = 0.62, p = 0.04). HIV-RNA was undetectable in blood and semen after two years of effective cART. Semen HIV-DNA load declined similarly, except in one patient who had persistently high IP-10 and IL-6 levels and used recreational drugs.

CONCLUSIONS: HIV reservoir cells are found in semen during PHI, with gradual compartmentalization. Its size was linked to the plasma IP-10 level. Early treatment purges both the virus and infected cells, reducing the high risk of transmission during PHI.

CLINICAL TRIALS REGISTRATION: NCT01033760.

https://www.ncbi.nlm.nih.gov/pubmed/28708873