Vaccination against heterologous R5 clade C SHIV: prevention of infection and correlates of protection

A safe, efficacious vaccine is required to stop the AIDS pandemic. Disappointing results from the STEP trial implied a need to include humoral anti-HIV-1 responses, a notion supported by RV144 trial data even though correlates of protection are unknown. We vaccinated rhesus macaques with recombinant...

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Veröffentlicht in:PloS one 2011-07, Vol.6 (7), p.e22010-e22010
Hauptverfasser: Lakhashe, Samir K, Wang, Wendy, Siddappa, Nagadenahalli B, Hemashettar, Girish, Polacino, Patricia, Hu, Shiu-Lok, Villinger, François, Else, James G, Novembre, Francis J, Yoon, John K, Lee, Sandra J, Montefiori, David C, Ruprecht, Ruth M, Rasmussen, Robert A
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container_issue 7
container_start_page e22010
container_title PloS one
container_volume 6
creator Lakhashe, Samir K
Wang, Wendy
Siddappa, Nagadenahalli B
Hemashettar, Girish
Polacino, Patricia
Hu, Shiu-Lok
Villinger, François
Else, James G
Novembre, Francis J
Yoon, John K
Lee, Sandra J
Montefiori, David C
Ruprecht, Ruth M
Rasmussen, Robert A
description A safe, efficacious vaccine is required to stop the AIDS pandemic. Disappointing results from the STEP trial implied a need to include humoral anti-HIV-1 responses, a notion supported by RV144 trial data even though correlates of protection are unknown. We vaccinated rhesus macaques with recombinant simian immunodeficiency virus (SIV) Gag-Pol particles, HIV-1 Tat and trimeric clade C (HIV-C) gp160, which induced cross-neutralizing antibodies (nAbs) and robust cellular immune responses. After five low-dose mucosal challenges with a simian-human immunodeficiency virus (SHIV) that encoded a heterologous R5 HIV-C envelope (22.1% divergence from the gp160 immunogen), 94% of controls became viremic, whereas one third of vaccinees remained virus-free. Upon high-dose SHIV rechallenge, all controls became infected, whereas some vaccinees remained aviremic. Peak viremia was inversely correlated with both cellular immunity (p
doi_str_mv 10.1371/journal.pone.0022010
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Wang, Wendy ; Siddappa, Nagadenahalli B ; Hemashettar, Girish ; Polacino, Patricia ; Hu, Shiu-Lok ; Villinger, François ; Else, James G ; Novembre, Francis J ; Yoon, John K ; Lee, Sandra J ; Montefiori, David C ; Ruprecht, Ruth M ; Rasmussen, Robert A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c691t-78cd7f98bc52cfa5072d8b74faeb0ca90192d9106318852eed0274908d04d2823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Acquired immune deficiency syndrome</topic><topic>AIDS</topic><topic>AIDS vaccines</topic><topic>Animals</topic><topic>Antibodies</topic><topic>Antigens</topic><topic>Antiviral agents</topic><topic>Biology</topic><topic>Cell-mediated immunity</topic><topic>Coding</topic><topic>Correlation</topic><topic>Divergence</topic><topic>Epidemics</topic><topic>Fusion Proteins, gag-pol - immunology</topic><topic>Gag protein</topic><topic>Glycoprotein gp160</topic><topic>Health aspects</topic><topic>HIV</topic><topic>HIV Envelope Protein gp160 - immunology</topic><topic>HIV Infections - immunology</topic><topic>HIV Infections - prevention &amp; 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subjects Acquired immune deficiency syndrome
AIDS
AIDS vaccines
Animals
Antibodies
Antigens
Antiviral agents
Biology
Cell-mediated immunity
Coding
Correlation
Divergence
Epidemics
Fusion Proteins, gag-pol - immunology
Gag protein
Glycoprotein gp160
Health aspects
HIV
HIV Envelope Protein gp160 - immunology
HIV Infections - immunology
HIV Infections - prevention & control
HIV-1 - immunology
Human immunodeficiency virus
Humans
Immune response (humoral)
Immunity
Infant
Macaca mulatta
Medicine
Mucosa
Pandemics
Simian Immunodeficiency Virus - immunology
tat Gene Products, Human Immunodeficiency Virus - immunology
Tat protein
Vaccination
Vaccination - methods
Vaccines
Vaccines, Synthetic - immunology
Viral Vaccines - immunology
Viremia
Viremia - prevention & control
Viruses
title Vaccination against heterologous R5 clade C SHIV: prevention of infection and correlates of protection
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