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Profiles of human serum antibody responses elicited by three leading HIV vaccines focusing on the induction of Env-specific antibodies.

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Date
2010-11-09
Authors
Vaine, Michael
Wang, Shixia
Liu, Qin
Arthos, James
Montefiori, David
Goepfert, Paul
McElrath, M Juliana
Lu, Shan
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Abstract
In the current report, we compared the specificities of antibody responses in sera from volunteers enrolled in three US NIH-supported HIV vaccine trials using different immunization regimens. HIV-1 Env-specific binding antibody, neutralizing antibody, antibody-dependent cell-mediated cytotoxicity (ADCC), and profiles of antibody specificity were analyzed for human immune sera collected from vaccinees enrolled in the NIH HIV Vaccine Trial Network (HVTN) Study #041 (recombinant protein alone), HVTN Study #203 (poxviral vector prime-protein boost), and the DP6-001 study (DNA prime-protein boost). Vaccinees from HVTN Study #041 had the highest neutralizing antibody activities against the sensitive virus along with the highest binding antibody responses, particularly those directed toward the V3 loop. DP6-001 sera showed a higher frequency of positive neutralizing antibody activities against more resistant viral isolate with a significantly higher CD4 binding site (CD4bs) antibody response compared to both HVTN studies #041 and #203. No differences were found in CD4-induced (CD4i) antibody responses, ADCC activity, or complement activation by Env-specific antibody among these sera. Given recent renewed interest in realizing the importance of antibody responses for next generation HIV vaccine development, different antibody profiles shown in the current report, based on the analysis of a wide range of antibody parameters, provide critical biomarker information for the selection of HIV vaccines for more advanced human studies and, in particular, those that can elicit antibodies targeting conformational-sensitive and functionally conserved epitopes.
Type
Journal article
Subject
AIDS Vaccines
Antibodies, Neutralizing
Antibody Specificity
Antibody-Dependent Cell Cytotoxicity
Enzyme-Linked Immunosorbent Assay
HIV Antibodies
HIV Envelope Protein gp120
HIV Infections
HIV-1
Humans
Permalink
https://hdl.handle.net/10161/4583
Published Version (Please cite this version)
10.1371/journal.pone.0013916
Publication Info
Vaine, Michael; Wang, Shixia; Liu, Qin; Arthos, James; Montefiori, David; Goepfert, Paul; ... Lu, Shan (2010). Profiles of human serum antibody responses elicited by three leading HIV vaccines focusing on the induction of Env-specific antibodies. PLoS One, 5(11). pp. e13916. 10.1371/journal.pone.0013916. Retrieved from https://hdl.handle.net/10161/4583.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Montefiori

David Charles Montefiori

Professor in Surgery
Dr. Montefiori is Professor and Director of the Laboratory for AIDS Vaccine Research and Development in the Department of Surgery, Division of Surgical Sciences, Duke University Medical Center. His major research interests are viral immunology and AIDS vaccine development, with a special emphasis on neutralizing antibodies. One of his highest priorities is to identify immunogens that generate broadly cross-reactive neutralizing antibodies for inclusion in HIV vaccines.  Many aspects of the
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