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Different kinetics of viral replication and DNA integration in the main HIV-1 cellular reservoirs in the presence and absence of integrase inhibitors.
Surdo, Matteo; Cortese, Maria Francesca; Orlandi, Chiara; Di Santo, Fabiola; Aquaro, Stefano; Magnani, Mauro; Perno, Carlo Federico; Casabianca, Anna; Ceccherini-Silberstein, Francesca.
Afiliación
  • Surdo M; Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. Electronic address: matteo.surdo@uniroma2.it.
  • Cortese MF; Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. Electronic address: maria.cortese@vhir.org.
  • Orlandi C; Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Urbino, PU, Italy. Electronic address: chiara.orlandi@uniurb.it.
  • Di Santo F; Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. Electronic address: fabioladisanto@yahoo.it.
  • Aquaro S; Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, CS, Italy. Electronic address: stefano.aquaro@unical.it.
  • Magnani M; Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Urbino, PU, Italy. Electronic address: mauro.magnani@uniurb.it.
  • Perno CF; Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. Electronic address: carlo.perno@unimi.it.
  • Casabianca A; Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Urbino, PU, Italy. Electronic address: anna.casabianca@uniurb.it.
  • Ceccherini-Silberstein F; Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. Electronic address: ceccherini@med.uniroma2.it.
Antiviral Res ; 160: 165-174, 2018 12.
Article en En | MEDLINE | ID: mdl-30420339
To compare the kinetics of integration, p24 production and equilibrium of the different HIV-DNA forms in human primary cells in the presence/absence of integrase-inhibitors (INIs) in vitro. Monocyte-derived-macrophages (MDMs), CD4+ T-cells and peripheral blood mononuclear cells (PBMCs) were infected with HIV-1 in the presence/absence of raltegravir and dolutegravir. HIV-DNA levels and p24 production were measured by qPCR and ELISA assays, respectively. In the absence of INIs, levels of HIV-DNA forms were initially very low, with an increase in the integration process starting at 3 dpi. HIV-DNA increased more slowly in MDMs than it did in CD4+ T-cells and PMBCs peaking at 21 dpi with a mean of 1580 (±890) and 615 (±37) copies/103 cells for proviral and unintegrated HIV-DNA, and 455,972 (±213,255) pg/mL of p24 at the same time point. In CD4+ T-cells the proviral HIV-DNA increased together with unintegrated HIV-DNA peaking at 7 dpi (583 ±â€¯261 and 338 ±â€¯254 copies/103 cells) when the p24 was 218,000 (±75,600) pg/mL. A similar trend was observed in PBMCs (494 ±â€¯361 and 350 ±â€¯123 copies/103 cells for proviral and unintegrated HIV-DNA, and p24 production of 149,400 ±â€¯131,800 pg/mL). Both INIs inhibited viral replication and integration in all the cell types that were tested, especially starting at 3 dpi. However, a small but measurable amount of HIV-DNA (<5 copies/103 cells) was still observed in treated-MDMs up to 30 dpi. In conclusion, our study showed differences in HIV-DNA kinetic integration between CD4+ T-cells and MDMs, which could explain the divergent kinetics of viral-replication. Both INIs inhibited HIV-1 integration and replication with no difference found between CD4+ T-cells and MDMs. However, residual HIV-DNA remained detectable up to 30 dpi in INI-treated MDMs although complete inhibition of HIV replication was achieved. The clinical significance of this minor DNA persistence deserves further investigation considering the role of macrophages as reservoirs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Replicación Viral / Linfocitos T CD4-Positivos / VIH-1 / Integración Viral / Inhibidores de Integrasa VIH / Macrófagos Límite: Humans Idioma: En Revista: Antiviral Res Año: 2018 Tipo del documento: Article Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Replicación Viral / Linfocitos T CD4-Positivos / VIH-1 / Integración Viral / Inhibidores de Integrasa VIH / Macrófagos Límite: Humans Idioma: En Revista: Antiviral Res Año: 2018 Tipo del documento: Article Pais de publicación: Países Bajos