1
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Moodie Z, Li SS, Giorgi EE, Williams LD, Dintwe O, Carpp LN, Chen S, Seaton KE, Sawant SS, Zhang L, Heptinstall J, Liu S, Grunenberg N, Tomaka F, Rerks-Ngarm S, Pitisuttithum P, Nitayaphan S, Ake JA, Vasan S, Pantaleo G, Frank I, Baden LR, Goepfert PA, Keefer M, Chirenje M, Hosseinipour MC, Mngadi K, Laher F, Garrett N, Bekker LG, De Rosa S, Andersen-Nissen E, Kublin JG, Lu S, Gilbert PB, Gray GE, Corey L, McElrath MJ, Tomaras GD. A polyvalent DNA prime with matched polyvalent protein/GLA-SE boost regimen elicited the most robust and broad IgG and IgG3 V1V2 binding antibody and CD4+ T cell responses among 13 HIV vaccine trials. Emerg Microbes Infect 2025; 14:2485317. [PMID: 40190112 PMCID: PMC11980190 DOI: 10.1080/22221751.2025.2485317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2025] [Revised: 03/12/2025] [Accepted: 03/23/2025] [Indexed: 04/11/2025]
Abstract
Developing an effective HIV vaccine is a momentous challenge. An exceptionally wide range of candidate HIV vaccines have been tested, yet many were poorly immunogenic, and of the select few that advanced into efficacy trials, only one demonstrated any efficacy. Here we report the results of the largest-scale cross-protocol immunogenicity comparison to date: 13 HIV vaccine trials (including 36 vaccine regimens) conducted across nine countries worldwide, strengthened by standardized trial designs, validated assays in centralized laboratories, and harmonized immunogenicity endpoints - providing an objective approach to identify the HIV vaccine candidate(s) with the best immunogenicity. A polyvalent DNA prime + protein boost regimen (HVTN 124) including Env immunogens of four subtypes, matched between prime and boost, achieved the best anti-V1V2 antibody responses by a large margin and also induced high CD4+ T-cell responses - two key immune responses implicated in HIV vaccine protection. Our results provide strong support to test this promising HIV vaccine design in more advanced phase clinical trials and will also guide the future design of additional HIV vaccines.Trial registration: ClinicalTrials.gov identifier: NCT01799954..Trial registration: ClinicalTrials.gov identifier: NCT02109354..Trial registration: ClinicalTrials.gov identifier: NCT02404311..Trial registration: ClinicalTrials.gov identifier: NCT02207920..Trial registration: ClinicalTrials.gov identifier: NCT02296541..Trial registration: ClinicalTrials.gov identifier: NCT03284710..Trial registration: ClinicalTrials.gov identifier: NCT02915016..Trial registration: ClinicalTrials.gov identifier: NCT02997969..Trial registration: ClinicalTrials.gov identifier: NCT03122223..Trial registration: ClinicalTrials.gov identifier: NCT03409276..Trial registration: ClinicalTrials.gov identifier: NCT02968849..Trial registration: ClinicalTrials.gov identifier: NCT03060629..Trial registration: ClinicalTrials.gov identifier: NCT00223080..
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Affiliation(s)
- Zoe Moodie
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Shuying Sue Li
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Elena E. Giorgi
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - LaTonya D. Williams
- Center for Human Systems Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - One Dintwe
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Cape Town HVTN Immunology Laboratory, Hutchinson Centre Research Institute of South Africa, Cape Town, South Africa
| | - Lindsay N. Carpp
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Shiyu Chen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Kelly E. Seaton
- Center for Human Systems Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Sheetal S. Sawant
- Center for Human Systems Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Lu Zhang
- Center for Human Systems Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Jack Heptinstall
- Center for Human Systems Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | | | - Nicole Grunenberg
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Frank Tomaka
- Department of Research & Development, Janssen Vaccines and Prevention/Johnson & Johnson, Titusville, NJ, USA
| | | | - Punnee Pitisuttithum
- Vaccine Trials Center, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Sorachai Nitayaphan
- Royal Thai Army, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Julie A. Ake
- U.S. Military HIV Research Program, CIDR, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Sandhya Vasan
- U.S. Military HIV Research Program, CIDR, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Giuseppe Pantaleo
- Service of Immunology and Allergy, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Ian Frank
- Infectious Diseases Division, Perelman School of Medicine, University of Pennsylvania, PA, USA
| | - Lindsey R. Baden
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Paul A. Goepfert
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael Keefer
- Department of Medicine, University of Rochester, Rochester, NY, USA
| | - Mike Chirenje
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Mina C. Hosseinipour
- UNC-Project Malawi, Lilongwe, Malawi
- Department of Medicine, UNC School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kathryn Mngadi
- Clinical Research Division, Aurum Institute, Johannesburg, South Africa
| | - Fatima Laher
- Perinatal HIV Research Unit (PHRU), Wits Health Consortium, Faculty of Health Sciences, University of the Witwatersrand, Soweto, Johannesburg, South Africa
| | - Nigel Garrett
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Stephen De Rosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Erica Andersen-Nissen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Cape Town HVTN Immunology Laboratory, Hutchinson Centre Research Institute of South Africa, Cape Town, South Africa
| | - James G. Kublin
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Shan Lu
- Worcester HIV Vaccine, Worcester, MA, USA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Peter B. Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Glenda E. Gray
- Perinatal HIV Research Unit (PHRU), Wits Health Consortium, Faculty of Health Sciences, University of the Witwatersrand, Soweto, Johannesburg, South Africa
- South African Medical Research Council, Cape Town, South Africa
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - M. Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Georgia D. Tomaras
- Center for Human Systems Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
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2
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Adepoju VA, Udah DC, Onyezue OI, Adnani QES, Jamil S, Bin Ali MN. Navigating the Complexities of HIV Vaccine Development: Lessons from the Mosaico Trial and Next-Generation Development Strategies. Vaccines (Basel) 2025; 13:274. [PMID: 40266130 PMCID: PMC11946271 DOI: 10.3390/vaccines13030274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2024] [Revised: 10/06/2024] [Accepted: 10/31/2024] [Indexed: 04/24/2025] Open
Abstract
Background/Objectives: The development of an effective HIV vaccine has faced persistent challenges, as evidenced by the recent discontinuation of the Mosaico phase 3 trial. This study aims to critically examine the obstacles encountered in HIV vaccine development, with a focus on the Mosaico trial, which tested the Ad26.Mos4.HIV vaccine among 3,900 participants across multiple countries. We also explore emerging vaccine technologies and their potential in overcoming these challenges, while reflecting on lessons from previous trials to inform future strategies. Methods: We reviewed the Mosaico trial's approach, which involved testing the efficacy of the Ad26.Mos4.HIV vaccine. We compared the outcomes of the Mosaico trial with other major HIV vaccine trials, including HVTN 702, Imbokodo, and RV144. We explored the limitations of the immune responses elicited by the Mosaico vaccine. The review focused on the generation of broadly neutralizing antibodies (bNAbs) and the challenges related to antigenic diversity and B-cell engagement. Emerging vaccine technologies, such as virus-like particles (VLPs), nanoparticles, SOSIP trimers, and mRNA platforms, were also analysed for their scalability, immune durability, and potential to advance HIV vaccine development. Results: The Mosaico trial was discontinued due to insufficient efficacy in reducing HIV acquisition, primarily due to the inability of the vaccine to induce bNAbs, which are crucial for targeting the diverse HIV-1 strains. A major challenge was the inadequate engagement of germline B-cell precursors, compounded by the antigenic diversity of the virus. The analysis showed that emerging vaccine platforms, such as VLPs, nanoparticles, SOSIP trimers, and mRNA-based approaches, hold promise but present challenges related to scalability and the durability of immune responses. The role of T cells and adjuvants in enhancing vaccine efficacy was also highlighted as critical for integrating both humoral and cellular immunity. Conclusions: The Mosaico trial, as well as other major HIV vaccine trials, underscores the need for a multi-pronged approach that incorporates both antibody and T-cell responses to tackle the complexities of HIV-1. Future efforts in HIV vaccine development must focus on inducing bNAbs, generating robust T-cell responses, and utilizing scalable vaccine platforms. The integration of artificial intelligence (AI) into vaccine design offers new opportunities to optimize immunogenic targets, which could significantly improve the potential for durable and broad immune protection. The development of a successful HIV vaccine by 2030 is achievable but relies on leverage on advanced technologies including artificial intelligence, innovation and insights from past trial data.
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Affiliation(s)
- Victor Abiola Adepoju
- Department of HIV and Infectious Diseases, Jhpiego (An Affiliate of Johns Hopkins University), Abuja 900911, Nigeria
| | - Donald C. Udah
- JSI Research & Training Institute Inc. (JSI), Abuja 900911, Nigeria;
| | - Okechukwu Innocent Onyezue
- Department of HIV Prevention and Community Directorate, APIN Public Health Initiatives, Abuja 900911, Nigeria;
| | | | - Safayet Jamil
- Department of Public Health, Daffodil International University, Dhaka 1216, Bangladesh;
- Department of Public and Community Health, Faculty of Medicine and Health Sciences, Frontier University Garowe, Puntland 00252, Somalia
| | - Mohammed Nadir Bin Ali
- Department of Computing and Information System, Daffodil International University, Dhaka 1216, Bangladesh;
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3
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Ovchinnikov V, Karplus M. Phenomenological Modeling of Antibody Response from Vaccine Strain Composition. Antibodies (Basel) 2025; 14:6. [PMID: 39846614 PMCID: PMC11755667 DOI: 10.3390/antib14010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2024] [Revised: 01/11/2025] [Accepted: 01/14/2025] [Indexed: 01/24/2025] Open
Abstract
The elicitation of broadly neutralizing antibodies (bnAbs) is a major goal of vaccine design for highly mutable pathogens, such as influenza, HIV, and coronavirus. Although many rational vaccine design strategies for eliciting bnAbs have been devised, their efficacies need to be evaluated in preclinical animal models and in clinical trials. To improve outcomes for such vaccines, it would be useful to develop methods that can predict vaccine efficacies against arbitrary pathogen variants. As a step in this direction, here, we describe a simple biologically motivated model of antibody reactivity elicited by nanoparticle-based vaccines using only antigen amino acid sequences, parametrized with a small sample of experimental antibody binding data from influenza or SARS-CoV-2 nanoparticle vaccinations. Results: The model is able to recapitulate the experimental data to within experimental uncertainty, is relatively insensitive to the choice of the parametrization/training set, and provides qualitative predictions about the antigenic epitopes exploited by the vaccine, which are testable by experiment. For the mosaic nanoparticle vaccines considered here, model results suggest indirectly that the sera obtained from vaccinated mice contain bnAbs, rather than simply different strain-specific Abs. Although the present model was motivated by nanoparticle vaccines, we also apply it to a mutlivalent mRNA flu vaccination study, and demonstrate good recapitulation of experimental results. This suggests that the model formalism is, in principle, sufficiently flexible to accommodate different vaccination strategies. Finally, we show how the model could be used to rank the efficacies of vaccines with different antigen compositions. Conclusions: Overall, this study suggests that simple models of vaccine efficacy parametrized with modest amounts of experimental data could be used to compare the effectiveness of designed vaccines.
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Affiliation(s)
- Victor Ovchinnikov
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Martin Karplus
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
- Laboratoire de Chimie Biophysique, ISIS, Université de Strasbourg, 67000 Strasbourg, France
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4
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Swanson OM, Zhang QE, Van Itallie E, Tian M, Brown AR, Harris C, Kapingidza AB, Rhodes B, Smith LM, Venkatayogi S, Cronin K, Frazier M, Parks R, Bar M, Jiang C, Martin Beem JS, Cheng HL, Davis J, McGovern K, Newman A, Edwards RJ, Cain D, Alam SM, Wiehe K, Saunders KO, Acharya P, Alt F, Haynes BF, Azoitei ML. An engineered immunogen activates diverse HIV broadly neutralizing antibody precursors and promotes acquisition of improbable mutations. Sci Transl Med 2025; 17:eadr2218. [PMID: 39772772 DOI: 10.1126/scitranslmed.adr2218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 09/24/2024] [Accepted: 12/04/2024] [Indexed: 01/11/2025]
Abstract
Elicitation of HIV broadly neutralizing antibodies (bnAbs) by vaccination first requires the activation of diverse precursors, followed by successive boosts that guide these responses to enhanced breadth through the acquisition of somatic mutations. Because HIV bnAbs contain mutations in their B cell receptors (BCRs) that are rarely generated during conventional B cell maturation, HIV vaccine immunogens must robustly engage and expand B cells with BCRs that contain these improbable mutations. Here, we engineered an immunogen that activates diverse precursors of an HIV V3-glycan bnAb and promotes their acquisition of a functionally critical improbable mutation. This immunogen was validated biochemically, structurally, and in three different humanized immunoglobulin mouse models that were designed to test HIV immunogens. These results provide a blueprint for rationally designing priming immunogens that explicitly target the elicitation of antibodies with functional yet improbable mutations.
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Affiliation(s)
- Olivia M Swanson
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Qianyi E Zhang
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Elizabeth Van Itallie
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ming Tian
- Boston Children's Hospital, Harvard Medical School and HHMI, Boston, MA 02115, USA
| | - Alecia R Brown
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Caitlin Harris
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | | | - Brianna Rhodes
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Lena M Smith
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Sravani Venkatayogi
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kenneth Cronin
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - McKenzie Frazier
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Rob Parks
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Maggie Bar
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Chuancang Jiang
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Joshua S Martin Beem
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Hwei-Ling Cheng
- Boston Children's Hospital, Harvard Medical School and HHMI, Boston, MA 02115, USA
| | - Jillian Davis
- Boston Children's Hospital, Harvard Medical School and HHMI, Boston, MA 02115, USA
| | - Kelly McGovern
- Boston Children's Hospital, Harvard Medical School and HHMI, Boston, MA 02115, USA
| | - Amanda Newman
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Robert J Edwards
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Derek Cain
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - S Munir Alam
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kevin Wiehe
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kevin O Saunders
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Microbiology and Molecular Genetics, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, USA
| | - Priyamvada Acharya
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, USA
| | - Fred Alt
- Boston Children's Hospital, Harvard Medical School and HHMI, Boston, MA 02115, USA
| | - Barton F Haynes
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Integrative Immunology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Mihai L Azoitei
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
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5
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Walimbwa SI, Maly P, Kafkova LR, Raska M. Beyond glycan barriers: non-cognate ligands and protein mimicry approaches to elicit broadly neutralizing antibodies for HIV-1. J Biomed Sci 2024; 31:83. [PMID: 39169357 PMCID: PMC11337606 DOI: 10.1186/s12929-024-01073-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 08/12/2024] [Indexed: 08/23/2024] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) vaccine immunogens capable of inducing broadly neutralizing antibodies (bNAbs) remain obscure. HIV-1 evades immune responses through enormous diversity and hides its conserved vulnerable epitopes on the envelope glycoprotein (Env) by displaying an extensive immunodominant glycan shield. In elite HIV-1 viremic controllers, glycan-dependent bNAbs targeting conserved Env epitopes have been isolated and are utilized as vaccine design templates. However, immunological tolerance mechanisms limit the development of these antibodies in the general population. The well characterized bNAbs monoclonal variants frequently exhibit extensive levels of somatic hypermutation, a long third heavy chain complementary determining region, or a short third light chain complementarity determining region, and some exhibit poly-reactivity to autoantigens. This review elaborates on the obstacles to engaging and manipulating the Env glycoprotein as an effective immunogen and describes an alternative reverse vaccinology approach to develop a novel category of bNAb-epitope-derived non-cognate immunogens for HIV-1 vaccine design.
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Affiliation(s)
- Stephen Ian Walimbwa
- Department of Immunology, University Hospital Olomouc, Zdravotníků 248/7, 77900, Olomouc, Czech Republic.
| | - Petr Maly
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Průmyslová 595, 252 50, Vestec, Czech Republic
| | - Leona Raskova Kafkova
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, 779 00, Olomouc, Czech Republic
| | - Milan Raska
- Department of Immunology, University Hospital Olomouc, Zdravotníků 248/7, 77900, Olomouc, Czech Republic.
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, 779 00, Olomouc, Czech Republic.
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6
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Gai Y, Gao N, Mou Z, Yang C, Wang L, Ji W, Gu T, Yu B, Wang C, Yu X, Gao F. Recapitulation of HIV-1 Neutralization Breadth in Plasma by the Combination of Two Broadly Neutralizing Antibodies from Different Lineages in the Same SHIV-Infected Rhesus Macaque. Int J Mol Sci 2024; 25:7200. [PMID: 39000308 PMCID: PMC11240982 DOI: 10.3390/ijms25137200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/18/2024] [Accepted: 06/28/2024] [Indexed: 07/16/2024] Open
Abstract
Viral infection generally induces polyclonal neutralizing antibody responses. However, how many lineages of antibody responses can fully represent the neutralization activities in sera has not been well studied. Using the newly designed stable HIV-1 Env trimer as hook, we isolated two distinct broadly neutralizing antibodies (bnAbs) from Chinese rhesus macaques infected with SHIV1157ipd3N4 for 5 years. One lineage of neutralizing antibodies (JT15 and JT16) targeted the V2-apex in the Env trimers, similar to the J038 lineage bnAbs identified in our previous study. The other lineage neutralizing antibody (JT18) targeted the V3 crown region in the Env, which strongly competed with human 447-52D. Each lineage antibody neutralized a different set of viruses. Interestingly, when the two neutralizing antibodies from different lineages isolated from the same macaque were combined, the mixture had a neutralization breath very similar to that from the cognate sera. Our study demonstrated that a minimum of two different neutralizing antibodies can fully recapitulate the serum neutralization breadth. This observation can have important implications in AIDS vaccine design.
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Affiliation(s)
- Yanxin Gai
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Nan Gao
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Zhaoyang Mou
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Chumeng Yang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Libian Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Wanshan Ji
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Tiejun Gu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Bin Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Chu Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Xianghui Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Feng Gao
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China
- Institute of Molecular and Medical Virology, School of Medicine, Jinan University, Guangzhou 510632, China
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Jinan University, Ministry of Education, Guangzhou 510632, China
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7
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Pegu A, Lovelace SE, DeMouth ME, Cully MD, Morris DJ, Li Y, Wang K, Schmidt SD, Choe M, Liu C, Chen X, Viox E, Rowshan A, Taft JD, Zhang B, Xu K, Duan H, Ou L, Todd JP, Kong R, Li H, Shaw GM, Doria-Rose NA, Kwong PD, Koup RA, Mascola JR. Antibodies targeting the fusion peptide on the HIV envelope provide protection to rhesus macaques against mucosal SHIV challenge. Sci Transl Med 2024; 16:eadh9039. [PMID: 38232141 DOI: 10.1126/scitranslmed.adh9039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 11/15/2023] [Indexed: 01/19/2024]
Abstract
The fusion peptide (FP) on the HIV-1 envelope (Env) trimer can be targeted by broadly neutralizing antibodies (bNAbs). Here, we evaluated the ability of a human FP-directed bNAb, VRC34.01, along with two vaccine-elicited anti-FP rhesus macaque mAbs, DFPH-a.15 and DF1W-a.01, to protect against simian-HIV (SHIV)BG505 challenge. VRC34.01 neutralized SHIVBG505 with a 50% inhibitory concentration (IC50) of 0.58 μg/ml, whereas DF1W-a.01 and DFPH-a.15 were 4- or 30-fold less potent, respectively. VRC34.01 was infused into four rhesus macaques at a dose of 10 mg/kg and four rhesus macaques at a dose of 2.5 mg/kg. The animals were intrarectally challenged 5 days later with SHIVBG505. In comparison with all 12 control animals that became infected, all four animals infused with VRC34.01 (10 mg/kg) and three out of four animals infused with VRC34.01 (2.5 mg/kg) remained uninfected. Because of the lower potency of DF1W-a.01 and DFPH-a.15 against SHIVBG505, we infused both Abs at a higher dose of 100 mg/kg into four rhesus macaques each, followed by SHIVBG505 challenge 5 days later. Three of four animals that received DF1W-a.01 were protected against infection, whereas all animals that received DFPH-a.15 were protected. Overall, the protective serum neutralization titers observed in these animals were similar to what has been observed for other bNAbs in similar SHIV infection models and in human clinical trials. In conclusion, FP-directed mAbs can thus provide dose-dependent in vivo protection against mucosal SHIV challenges, supporting the development of prophylactic vaccines targeting the HIV-1 Env FP.
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Affiliation(s)
- Amarendra Pegu
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Sarah E Lovelace
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Megan E DeMouth
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Michelle D Cully
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Daniel J Morris
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yingying Li
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Keyun Wang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Stephen D Schmidt
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Misook Choe
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Cuiping Liu
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Xuejun Chen
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Elise Viox
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Ariana Rowshan
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Justin D Taft
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Baoshan Zhang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Kai Xu
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Hongying Duan
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Li Ou
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - John-Paul Todd
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Rui Kong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Hui Li
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - George M Shaw
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nicole A Doria-Rose
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Peter D Kwong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Richard A Koup
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - John R Mascola
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
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8
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Zhang X, Zhou Z. The Mechanism of bnAb Production and Its Application in Mutable Virus Broad-Spectrum Vaccines: Inspiration from HIV-1 Broad Neutralization Research. Vaccines (Basel) 2023; 11:1143. [PMID: 37514959 PMCID: PMC10384589 DOI: 10.3390/vaccines11071143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/19/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
Elite controllers among HIV-1-infected individuals have demonstrated a stronger ability to control the viral load in their bodies. Scientists have isolated antibodies with strong neutralizing ability from these individuals, which can neutralize HIV-1 variations; these are known as broadly neutralizing antibodies. The nucleic acid of some viruses will constantly mutate during replication (such as SARS-CoV-2), which will reduce the protective ability of the corresponding vaccines. The immune escape caused by this mutation is the most severe challenge faced by humans in the battle against the virus. Therefore, developing broad-spectrum vaccines that can induce broadly neutralizing antibodies against various viruses and their mutated strains is the best way to combat virus mutations. Exploring the mechanism by which the human immune system produces broadly neutralizing antibodies and its induction strategies is crucial in the design process of broad-spectrum vaccines.
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Affiliation(s)
- Xinyu Zhang
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
- Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, No. 31 Huatuo Street, Daxing District, Beijing 102629, China
- College of Life Science, Jilin University, Changchun 130012, China
| | - Zehua Zhou
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
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9
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Henderson R, Zhou Y, Stalls V, Wiehe K, Saunders KO, Wagh K, Anasti K, Barr M, Parks R, Alam SM, Korber B, Haynes BF, Bartesaghi A, Acharya P. Structural basis for breadth development in the HIV-1 V3-glycan targeting DH270 antibody clonal lineage. Nat Commun 2023; 14:2782. [PMID: 37188681 PMCID: PMC10184639 DOI: 10.1038/s41467-023-38108-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 04/14/2023] [Indexed: 05/17/2023] Open
Abstract
Antibody affinity maturation enables adaptive immune responses to a wide range of pathogens. In some individuals broadly neutralizing antibodies develop to recognize rapidly mutating pathogens with extensive sequence diversity. Vaccine design for pathogens such as HIV-1 and influenza has therefore focused on recapitulating the natural affinity maturation process. Here, we determine structures of antibodies in complex with HIV-1 Envelope for all observed members and ancestral states of the broadly neutralizing HIV-1 V3-glycan targeting DH270 antibody clonal B cell lineage. These structures track the development of neutralization breadth from the unmutated common ancestor and define affinity maturation at high spatial resolution. By elucidating contacts mediated by key mutations at different stages of antibody development we identified sites on the epitope-paratope interface that are the focus of affinity optimization. Thus, our results identify bottlenecks on the path to natural affinity maturation and reveal solutions for these that will inform immunogen design aimed at eliciting a broadly neutralizing immune response by vaccination.
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Affiliation(s)
- Rory Henderson
- Department of Medicine and Immunology, Duke University School of Medicine, Durham, NC, USA.
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA.
| | - Ye Zhou
- Department of Computer Science, Duke University, Durham, NC, USA
| | - Victoria Stalls
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Kevin Wiehe
- Department of Medicine and Immunology, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Kevin O Saunders
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Kshitij Wagh
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM, USA
- New Mexico Consortium, Los Alamos, NM, USA
| | - Kara Anasti
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Maggie Barr
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Robert Parks
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - S Munir Alam
- Department of Medicine and Immunology, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Bette Korber
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM, USA
- New Mexico Consortium, Los Alamos, NM, USA
| | - Barton F Haynes
- Department of Medicine and Immunology, Duke University School of Medicine, Durham, NC, USA.
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA.
| | - Alberto Bartesaghi
- Department of Computer Science, Duke University, Durham, NC, USA.
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA.
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA.
| | - Priyamvada Acharya
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA.
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA.
- Department of Biochemistry, Duke University School of Medicine, Durham, NC, USA.
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10
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Gristick HB, Hartweger H, Loewe M, van Schooten J, Ramos V, Oliviera TY, Nishimura Y, Koranda NS, Wall A, Yao KH, Poston D, Gazumyan A, Wiatr M, Horning M, Keeffe JR, Hoffmann MA, Yang Z, Abernathy ME, Dam KMA, Gao H, Gnanapragasam PN, Kakutani LM, Pavlovitch-Bedzyk AJ, Seaman MS, Howarth M, McGuire AT, Stamatatos L, Martin MA, West AP, Nussenzweig MC, Bjorkman PJ. CD4 binding site immunogens elicit heterologous anti-HIV-1 neutralizing antibodies in transgenic and wild-type animals. Sci Immunol 2023; 8:eade6364. [PMID: 36763635 PMCID: PMC10202037 DOI: 10.1126/sciimmunol.ade6364] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/20/2023] [Indexed: 02/12/2023]
Abstract
Passive transfer of broadly neutralizing anti-HIV-1 antibodies (bNAbs) protects against infection, and therefore, eliciting bNAbs by vaccination is a major goal of HIV-1 vaccine efforts. bNAbs that target the CD4 binding site (CD4bs) on HIV-1 Env are among the most broadly active, but to date, responses elicited against this epitope in vaccinated animals have lacked potency and breadth. We hypothesized that CD4bs bNAbs resembling the antibody IOMA might be easier to elicit than other CD4bs antibodies that exhibit higher somatic mutation rates, a difficult-to-achieve mechanism to accommodate Env's N276gp120 N-glycan, and rare five-residue light chain complementarity-determining region 3. As an initial test of this idea, we developed IOMA germline-targeting Env immunogens and evaluated a sequential immunization regimen in transgenic mice expressing germline-reverted IOMA. These mice developed CD4bs epitope-specific responses with heterologous neutralization, and cloned antibodies overcame neutralization roadblocks, including accommodating the N276gp120 glycan, with some neutralizing selected HIV-1 strains more potently than IOMA. The immunization regimen also elicited CD4bs-specific responses in mice containing polyclonal antibody repertoires as well as rabbits and rhesus macaques. Thus, germline targeting of IOMA-class antibody precursors represents a potential vaccine strategy to induce CD4bs bNAbs.
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Affiliation(s)
- Harry B. Gristick
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Harald Hartweger
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Maximilian Loewe
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Jelle van Schooten
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Victor Ramos
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Thiago Y. Oliviera
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Yoshiaki Nishimura
- Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases,National Institutes of Health, Bethesda, MD 20892, USA
| | - Nicholas S. Koranda
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Abigail Wall
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Global Health, University of Washington, Seattle, WA
| | - Kai-Hui Yao
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Daniel Poston
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Anna Gazumyan
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Marie Wiatr
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Marcel Horning
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
| | - Jennifer R. Keeffe
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Magnus A.G. Hoffmann
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Zhi Yang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Morgan E. Abernathy
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Kim-Marie A. Dam
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Han Gao
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | | | - Leesa M. Kakutani
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | | | - Michael S. Seaman
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Mark Howarth
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Andrew T. McGuire
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Global Health, University of Washington, Seattle, WA
| | - Leonidas Stamatatos
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Global Health, University of Washington, Seattle, WA
| | - Malcolm A. Martin
- Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases,National Institutes of Health, Bethesda, MD 20892, USA
| | - Anthony P. West
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Michel C. Nussenzweig
- Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA
- Howard Hughes Medical Institute, The Rockefeller University, New York, NY 10065, USA
| | - Pamela J. Bjorkman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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11
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New vector and vaccine platforms: mRNA, DNA, viral vectors. Curr Opin HIV AIDS 2022; 17:338-344. [DOI: 10.1097/coh.0000000000000763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Scheepers C, Kgagudi P, Mzindle N, Gray ES, Moyo-Gwete T, Lambson BE, Oosthuysen B, Mabvakure B, Garrett NJ, Abdool Karim SS, Morris L, Moore PL. Dependence on a variable residue limits the breadth of an HIV MPER neutralizing antibody, despite convergent evolution with broadly neutralizing antibodies. PLoS Pathog 2022; 18:e1010450. [PMID: 36054228 PMCID: PMC9477419 DOI: 10.1371/journal.ppat.1010450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 09/15/2022] [Accepted: 08/14/2022] [Indexed: 11/18/2022] Open
Abstract
Broadly neutralizing antibodies (bNAbs) that target the membrane-proximal external region (MPER) of HIV gp41 envelope, such as 4E10, VRC42.01 and PGZL1, can neutralize >80% of viruses. These three MPER-directed monoclonal antibodies share germline antibody genes (IGHV1-69 and IGKV3-20) and form a bNAb epitope class. Furthermore, convergent evolution within these two lineages towards a 111.2GW111.3 motif in the CDRH3 is known to enhance neutralization potency. We have previously isolated an MPER neutralizing antibody, CAP206-CH12, that uses these same germline heavy and light chain genes but lacks breadth (neutralizing only 6% of heterologous viruses). Longitudinal sequencing of the CAP206-CH12 lineage over three years revealed similar convergent evolution towards 111.2GW111.3 among some lineage members. Mutagenesis of CAP206-CH12 from 111.2GL111.3 to 111.2GW111.3 and the introduction of the double GWGW motif into CAP206-CH12 modestly improved neutralization potency (2.5–3-fold) but did not reach the levels of potency of VRC42.01, 4E10 or PGZL1. To explore the lack of potency/breadth, viral mutagenesis was performed to map the CAP206-CH12 epitope. This indicated that CAP206-CH12 is dependent on D674, a highly variable residue at the solvent-exposed elbow of MPER. In contrast, VRC42.01, PGZL1 and 4E10 were dependent on highly conserved residues (W672, F673, T676, and W680) facing the hydrophobic patch of the MPER. Therefore, while CAP206-CH12, VRC42.01, PGZL1 and 4E10 share germline genes and show some evidence of convergent evolution, their dependence on different amino acids, which impacts orientation of binding to the MPER, result in differences in breadth and potency. These data have implications for the design of HIV vaccines directed at the MPER epitope. Germline-targeting immunogens are a promising HIV vaccine design strategy. This approach is reliant on the identification of broadly neutralizing antibody (bNAb) classes, which use the same germline antibody genes to target the same viral epitopes. Here, we compare four HIV Envelope MPER-directed antibodies (4E10, VRC42.01, PGZL1 and CAP206-CH12) that despite having shared antibody genes, show distinct neutralization profiles. We show that CAP206-CH12 is dependent on a highly variable residue in the MPER, which results in low neutralization breadth. In contrast, the 4E10, PGZL1 and VRC42.01 mAbs are dependent on highly conserved residues in the MPER, resulting in exceptional neutralization breadth. Our data suggest that while shared germline genes within bNAb epitope classes are required, in some cases these are not sufficient to produce neutralization breadth, and MPER immunogens will need to trigger responses to conserved sites.
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Affiliation(s)
- Cathrine Scheepers
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Prudence Kgagudi
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Nonkululeko Mzindle
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Elin S. Gray
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
| | - Thandeka Moyo-Gwete
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Bronwen E. Lambson
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Brent Oosthuysen
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Batsirai Mabvakure
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Nigel J. Garrett
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), KwaZulu-Natal, South Africa
| | - Salim S. Abdool Karim
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), KwaZulu-Natal, South Africa
- Department of Epidemiology, Columbia University, New York City, New York, United States of America
| | - Lynn Morris
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), KwaZulu-Natal, South Africa
- * E-mail: (LM); (PLM)
| | - Penny L. Moore
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), KwaZulu-Natal, South Africa
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
- * E-mail: (LM); (PLM)
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13
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Byrne PO, McLellan JS. Principles and practical applications of structure-based vaccine design. Curr Opin Immunol 2022; 77:102209. [PMID: 35598506 PMCID: PMC9611442 DOI: 10.1016/j.coi.2022.102209] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 12/16/2022]
Abstract
Viral proteins fold into a variety of
structures as they perform their functions. Structure-based vaccine
design aims to exploit knowledge of an antigen’s architecture to
stabilize it in a vulnerable conformation. We summarize the general
principles of structure-based vaccine design, with a focus on the major
types of sequence modifications: proline, disulfide, cavity-filling,
electrostatic and hydrogen-bond substitution, as well as domain deletion.
We then review recent applications of these principles to vaccine-design
efforts across five viral families: Coronaviridae,
Orthomyxoviridae, Paramyxoviridae, Pneumoviridae, and
Filoviridae. Outstanding challenges include
continued application of proven design principles to pathogens of
interest, as well as development of new strategies for those pathogens
that resist traditional techniques.
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14
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Saag M. Wonder of wonders, miracle of miracles: the unprecedented speed of COVID-19 science. Physiol Rev 2022; 102:1569-1577. [PMID: 35446679 PMCID: PMC9169823 DOI: 10.1152/physrev.00010.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
- Michael Saag
- University of Alabama at Birmingham, Birmingham, Alabama
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15
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Hartweger H, Nussenzweig MC. CRISPR comes a-knock-in to reprogram antibodies in vivo. Nat Biotechnol 2022; 40:1183-1184. [PMID: 35681058 DOI: 10.1038/s41587-022-01299-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Harald Hartweger
- Laboratory for Molecular Immunology, Rockefeller University, New York, NY, USA.
| | - Michel C Nussenzweig
- Laboratory for Molecular Immunology, Rockefeller University, New York, NY, USA.,Howard Hughes Medical Institute, Rockefeller University, New York, NY, USA
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