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Limited HIV-2 reservoirs in central-memory CD4 T-cells associated to CXCR6 co-receptor expression in attenuated HIV-2 infection

dc.rights.licenseopenen_US
dc.contributor.authorSAMRI, A.
dc.contributor.authorCHARPENTIER, C.
dc.contributor.authorDIALLO, M.
dc.contributor.authorBERTINE, M.
dc.contributor.authorEVEN, S.
dc.contributor.authorMORIN, V.
dc.contributor.authorOUDIN, A.
dc.contributor.authorPARIZOT, C.
dc.contributor.authorCOLLIN, G.
dc.contributor.authorHOSMALIN, A.
dc.contributor.authorCHEYNIER, R.
hal.structure.identifierStatistics In System biology and Translational Medicine [SISTM]
hal.structure.identifierBordeaux population health [BPH]
dc.contributor.authorTHIEBAUT, Rodolphe
dc.contributor.authorMATHERON, S.
hal.structure.identifierStatistics In System biology and Translational Medicine [SISTM]
hal.structure.identifierBordeaux population health [BPH]
dc.contributor.authorCOLLIN, Fideline
dc.contributor.authorZOOROB, R.
dc.contributor.authorBRUN-VEZINET, F.
dc.contributor.authorAUTRAN, B.
dc.date.accessioned2020-07-13T11:55:17Z
dc.date.available2020-07-13T11:55:17Z
dc.date.issued2019-05-16
dc.identifier.issn1553-7366en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10432
dc.description.abstractEnThe low pathogenicity and replicative potential of HIV-2 are still poorly understood. We investigated whether HIV-2 reservoirs might follow the peculiar distribution reported in models of attenuated HIV-1/SIV infections, i.e. limited infection of central-memory CD4 T lymphocytes (TCM). Antiretroviral-naive HIV-2 infected individuals from the ANRS-CO5 (12 non-progressors, 2 progressors) were prospectively included. Peripheral blood mononuclear cells (PBMCs) were sorted into monocytes and resting CD4 T-cell subsets (naive [TN], central- [TCM], transitional- [TTM] and effector-memory [TEM]). Reactivation of HIV-2 was tested in 30-day cultures of CD8-depleted PBMCs. HIV-2 DNA was quantified by real-time PCR. Cell surface markers, co-receptors and restriction factors were analyzed by flow-cytometry and multiplex transcriptomic study. HIV-2 DNA was undetectable in monocytes from all individuals and was quantifiable in TTM from 4 individuals (median: 2.25 log10 copies/106 cells [IQR: 1.99-2.94]) but in TCM from only 1 individual (1.75 log10 copies/106 cells). HIV-2 DNA levels in PBMCs (median: 1.94 log10 copies/106 PBMC [IQR = 1.53-2.13]) positively correlated with those in TTM (r = 0.66, p = 0.01) but not TCM. HIV-2 reactivation was observed in the cells from only 3 individuals. The CCR5 co-receptor was distributed similarly in cell populations from individuals and donors. TCM had a lower expression of CXCR6 transcripts (p = 0.002) than TTM confirmed by FACS analysis, and a higher expression of TRIM5 transcripts (p = 0.004). Thus the low HIV-2 reservoirs differ from HIV-1 reservoirs by the lack of monocytic infection and a limited infection of TCM associated to a lower expression of a potential alternative HIV-2 co-receptor, CXCR6 and a higher expression of a restriction factor, TRIM5. These findings shed new light on the low pathogenicity of HIV-2 infection suggesting mechanisms close to those reported in other models of attenuated HIV/SIV infection models.
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/us/
dc.subject.enSISTM
dc.title.enLimited HIV-2 reservoirs in central-memory CD4 T-cells associated to CXCR6 co-receptor expression in attenuated HIV-2 infection
dc.title.alternativePLoS Pathogen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1371/journal.ppat.1007758
dc.subject.halSciences du Vivant [q-bio]/Santé publique et épidémiologieen_US
dc.identifier.pubmed31095640en_US
bordeaux.journalPlos Pathogensen_US
bordeaux.pagee1007758en_US
bordeaux.volume15en_US
bordeaux.hal.laboratoriesBordeaux Population Health Research Center (BPH) - UMR 1219en_US
bordeaux.issue5en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.teamSISTM_BPH
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-03160709
hal.version1
hal.date.transferred2021-03-15T09:17:19Z
hal.exporttrue
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