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Cross-subtype antibody and cellular immune responses induced by a polyvalent DNA prime–protein boost HIV-1 vaccine in healthy human volunteers

Abstract An optimally effective AIDS vaccine would likely require the induction of both neutralizing antibody and cell-mediated immune responses, which has proven difficult to obtain in previous clinical trials. Here we report on the induction of human immunodeficiency virus type-1 (HIV-1)-specific...

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Published in:Vaccine 2008-07, Vol.26 (31), p.3947-3957
Main Authors: Wang, Shixia, Kennedy, Jeffrey S, West, Kim, Montefiori, David C, Coley, Scott, Lawrence, John, Shen, Siyuan, Green, Sharone, Rothman, Alan L, Ennis, Francis A, Arthos, James, Pal, Ranajit, Markham, Phillip, Lu, Shan
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cited_by cdi_FETCH-LOGICAL-c4630-6d7893471bb0674e545a377dd9b89cc261b0d81d068500dd6982d7d1f9923d093
cites cdi_FETCH-LOGICAL-c4630-6d7893471bb0674e545a377dd9b89cc261b0d81d068500dd6982d7d1f9923d093
container_end_page 3957
container_issue 31
container_start_page 3947
container_title Vaccine
container_volume 26
creator Wang, Shixia
Kennedy, Jeffrey S
West, Kim
Montefiori, David C
Coley, Scott
Lawrence, John
Shen, Siyuan
Green, Sharone
Rothman, Alan L
Ennis, Francis A
Arthos, James
Pal, Ranajit
Markham, Phillip
Lu, Shan
description Abstract An optimally effective AIDS vaccine would likely require the induction of both neutralizing antibody and cell-mediated immune responses, which has proven difficult to obtain in previous clinical trials. Here we report on the induction of human immunodeficiency virus type-1 (HIV-1)-specific immune responses in healthy adult volunteers that received the multi-gene, polyvalent, DNA prime–protein boost HIV-1 vaccine formulation, DP6-001, in a Phase I clinical trial. Robust cross-subtype HIV-1-specific T cell responses were detected in IFN-γ ELISPOT assays. Furthermore, we detected high titer serum antibody responses that recognized a wide range of primary HIV-1 Env antigens and also neutralized pseudotyped viruses that express the primary Env antigens from multiple HIV-1 subtypes. These findings demonstrate that the DNA prime–protein boost approach is an effective immunization method to elicit both humoral and cell-mediated immune responses in humans, and that a polyvalent Env formulation could generate broad immune responses against HIV-1 viruses with diverse genetic backgrounds.
doi_str_mv 10.1016/j.vaccine.2007.12.060
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Here we report on the induction of human immunodeficiency virus type-1 (HIV-1)-specific immune responses in healthy adult volunteers that received the multi-gene, polyvalent, DNA prime–protein boost HIV-1 vaccine formulation, DP6-001, in a Phase I clinical trial. Robust cross-subtype HIV-1-specific T cell responses were detected in IFN-γ ELISPOT assays. Furthermore, we detected high titer serum antibody responses that recognized a wide range of primary HIV-1 Env antigens and also neutralized pseudotyped viruses that express the primary Env antigens from multiple HIV-1 subtypes. These findings demonstrate that the DNA prime–protein boost approach is an effective immunization method to elicit both humoral and cell-mediated immune responses in humans, and that a polyvalent Env formulation could generate broad immune responses against HIV-1 viruses with diverse genetic backgrounds.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>18724414</pmid><doi>10.1016/j.vaccine.2007.12.060</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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subjects Acquired immune deficiency syndrome
Adolescent
Adult
AIDS
AIDS Vaccines - immunology
Allergy and Immunology
Antigens
Clinical trials
Cross Reactions
Deoxyribonucleic acid
DNA
DNA vaccine
Female
HIV
HIV Antibodies - blood
HIV-1
HIV-1 - immunology
Human Experimentation
Human immunodeficiency virus
Humans
Immunization
Immunization, Secondary
Interferon-gamma - metabolism
Male
Middle Aged
Neutralization Tests
Phase I clinical trial
Plasmids
Prime–boost
Proteins
Recombinant protein vaccine
Studies
T-Lymphocytes - immunology
Vaccines
Vaccines, DNA - immunology
Vaccines, Subunit - immunology
title Cross-subtype antibody and cellular immune responses induced by a polyvalent DNA prime–protein boost HIV-1 vaccine in healthy human volunteers
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