Browsing by Author "Borrego, P."
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- Entry inhibitors and Carbosilane dendrimers are potent inhibitors of cell-associated HIV-2 infectionPublication . Diniz, A. R.; Briz, V.; Borrego, P.; Palladino, C.; Rodés, C.; De la Mata, F. J.; Gómez, R.; Muñoz-Fernández, M. A.; Taveira, N."Pre-exposure prophylaxis with topical microbicides formulated with antiviral agents can prevent HIV-1 acquisition. The ideal microbicide should prevent both cell-free and cell-associated HIV-1 and HIV-2 infections in the vaginal or rectum mucosa. So far, few candidate microbicides have been tested against HIV-2. Previously, we have shown that anionic carbosilane dendrimers 2G-S16 (sulphonate), G2-NF16 (naphthylsulfonated) and G3-S16 (sulphated-end groups) have potent antiviral activity against HIV-1. In this work, we evaluated the activity of these dendrimers and the fusion inhibitors T-1249 and T20 in preventing cell-free and cellassociated HIV-2 infection."
- Envelope C2-V3-C3-specific antibodies from HIV-1 infected patients from Angola correlate with neutralization activity in plasmaPublication . Calado, R.; Duarte, J.; Diniz, A. R.; Borrego, P.; Marcelino, J. M.; Wilton, J.; Bartólo, I.; Clemente, S.; Taveira, N."Development of immunogens that induce broadly neutralizing antibodies (bNAbs) is a major goal in HIV-1 vaccine field. Recently, we found that bNAbs can be elicited in Balb/c mice against HIV-2 by using a prime-boost vaccination strategy combining recombinant Vaccinia virus expressing a truncated form of the SU glycoprotein and a polypeptide comprising the C2, V3 and C3 envelope regions. We want to test the hypothesis that a similar vaccination strategy can also be effective for HIV-1. We also want to test the hypothesis that envelope glycoproteins derived from ancestral HIV-1 isolates from Angola may induce a broader neutralizing antibody response compared to envelope glycoproteins derived from contemporaneous isolates."
- Inhibition of HIV cell-to-cell fusion by antiretroviral drugs and neutralizing antibodiesPublication . Diniz, A. R.; Borrego, P.; Bártolo, I.; Taveira, N."Inhibition of HIV cell entry by antiretroviral drugs and neutralizing antibodies (NAbs) is typically measured in assays where cell-free virions enter reporter cell lines. However, direct Env-mediated cell-to-cell transmission is a major mechanism of HIV infection that also needs to be targeted. In this work we aimed to determine the ability of anti-HIV compounds in clinical or research use to inhibit HIV mediated cell-to-cell fusion (syncytia formation)."