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HIV-1 Envelope Glycoproteins from Diverse Clades Differentiate Antibody Responses and Durability among Vaccinees.

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Date
2018-04
Authors
Yates, Nicole L
deCamp, Allan C
Korber, Bette T
Liao, Hua-Xin
Irene, Carmela
Pinter, Abraham
Peacock, James
Harris, Linda J
Sawant, Sheetal
Hraber, Peter
Shen, Xiaoying
Rerks-Ngarm, Supachai
Pitisuttithum, Punnee
Nitayapan, Sorachai
Berman, Phillip W
Robb, Merlin L
Pantaleo, Giuseppe
Zolla-Pazner, Susan
Haynes, Barton F
Alam, S Munir
Montefiori, David C
Tomaras, Georgia D
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Abstract
Induction of broadly cross-reactive antiviral humoral responses with the capacity to target globally diverse circulating strains is a key goal for HIV-1 immunogen design. A major gap in the field is the identification of diverse HIV-1 envelope antigens to evaluate vaccine regimens for binding antibody breadth. In this study, we define unique antigen panels to map HIV-1 vaccine-elicited antibody breadth and durability. Diverse HIV-1 envelope glycoproteins were selected based on genetic and geographic diversity to cover the global epidemic, with a focus on sexually acquired transmitted/founder viruses with a tier 2 neutralization phenotype. Unique antigenicity was determined by nonredundancy (Spearman correlation), and antigens were clustered using partitioning around medoids (PAM) to identify antigen diversity. Cross-validation demonstrated that the PAM method was better than selection by reactivity and random selection. Analysis of vaccine-elicited V1V2 binding antibody in longitudinal samples from the RV144 clinical trial revealed the striking heterogeneity among individual vaccinees in maintaining durable responses. These data support the idea that a major goal for vaccine development is to improve antibody levels, breadth, and durability at the population level. Elucidating the level and durability of vaccine-elicited binding antibody breadth needed for protection is critical for the development of a globally efficacious HIV vaccine.IMPORTANCE The path toward an efficacious HIV-1 vaccine will require characterization of vaccine-induced immunity that can recognize and target the highly genetically diverse virus envelope glycoproteins. Antibodies that target the envelope glycoproteins, including diverse sequences within the first and second hypervariable regions (V1V2) of gp120, were identified as correlates of risk for the one partially efficacious HIV-1 vaccine. To build upon this discovery, we experimentally and computationally evaluated humoral responses to define envelope glycoproteins representative of the antigenic diversity of HIV globally. These diverse envelope antigens distinguished binding antibody breadth and durability among vaccine candidates, thus providing insights for advancing the most promising HIV-1 vaccine candidates.
Type
Journal article
Subject
Animals
Macaca mulatta
Humans
HIV-1
HIV Infections
HIV Envelope Protein gp120
AIDS Vaccines
HIV Antibodies
Genetic Variation
Permalink
https://hdl.handle.net/10161/17674
Published Version (Please cite this version)
10.1128/JVI.01843-17
Publication Info
Yates, Nicole L; deCamp, Allan C; Korber, Bette T; Liao, Hua-Xin; Irene, Carmela; Pinter, Abraham; ... Tomaras, Georgia D (2018). HIV-1 Envelope Glycoproteins from Diverse Clades Differentiate Antibody Responses and Durability among Vaccinees. Journal of virology, 92(8). 10.1128/JVI.01843-17. Retrieved from https://hdl.handle.net/10161/17674.
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

Alam

S. Munir Alam

Professor in Medicine
Research Interests.  The Alam laboratory’s primary research is focused on understanding the biophysical properties of antigen-antibody binding and the molecular events of early B cell activation using the HIV-1 broadly neutralizing antibody (bnAb) lineage models. We are studying how HIV-1 Envelope proteins of varying affinities are sensed by B cells expressing HIV-1 bnAbs or their germline antigen receptors and initiate early signaling events for their activation. In the lon
Haynes

Barton Ford Haynes

Frederic M. Hanes Distinguished Professor of Medicine
The Haynes lab is studying host innate and adaptive immune responses to the human immunodeficiency virus (HIV), tuberculosis (TB), and influenza in order to find the enabling technology to make preventive vaccines against these three major infectious diseases. Mucosal Immune Responses in Acute HIV Infection The Haynes lab is working to determine why broadly neutralizing antibodies are rarely made in acute HIV infection (AHI), currently a major obstacle in the de
Liao

Hua-Xin Liao

Adjunct Professor in the Department of Medicine
Dr. Liao is a Professor of Medicine and Research Director of Duke Human Vaccine Institute. Dr. Liao is a MD virologistt rained in China. In early 1980’s, Dr. Liao made major contributions to the first isolation of epidemic hemorrhagic fever virus (hataanvirus) from Apodemus agraius using tissue culture in China. The successful identification and isolation of Hataanvirus enabled the early diagnosis and treatment of the disease, and advancement of HFRS research towards prevention by de
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
Shen

Xiaoying Shen

Associate Professor in Surgery
Tomaras

Georgia Doris Tomaras

Professor in Surgery
Dr. Georgia Tomaras is a tenured Professor of Surgery, Professor of Immunology, Professor of Molecular Genetics and Microbiology and is a Fellow of the American Academy of Microbiology (AAM) and a Fellow of the American Association for the Advancement of Science (AAAS).  Dr. Tomaras is Co-Director of the Center for Human Systems Immunology (CHSI) Duke University and Director of the Duke Center for AIDS Research (CFAR). Her national and international leadership roles i
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