151
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Galindo-Villegas J, García-Alcazar A, Meseguer J, Mulero V. Aluminum adjuvant potentiates gilthead seabream immune responses but induces toxicity in splenic melanomacrophage centers. FISH & SHELLFISH IMMUNOLOGY 2019; 85:31-43. [PMID: 29510253 DOI: 10.1016/j.fsi.2018.02.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 02/24/2018] [Accepted: 02/27/2018] [Indexed: 06/08/2023]
Abstract
A key goal of a successful vaccine formulation is the strong induction of persistent protective immune responses without producing side-effects. Adjuvants have been proved to be successful in several species at inducing increased immune responses against poorly immunogenic antigens. Fish are not the exception and promising results of adjuvanted vaccine formulations in many species are needed. In this study, over a period of 300 days, we characterized the apparent damage and immune response in gilthead seabream immunized by intraperitoneal injection with the model antigen keyhole limpet hemocyanin (KLH) alone or formulated with Montanide ISA water-in-oil (761 or 763), or Imject™ aluminum hydroxide (aluminium), as adjuvants. Throughout the trial, external tissue damage was examined visually, but no change was observed. Internally, severe adhesions, increased fat tissue, and hepatomegaly were recorded, but, without impairing animal health. At 120 days post priming (dpp), histopathological evaluations of head-kidney, spleen and liver revealed the presence of altered melanomacrophage centers (MMC) in HK and spleen, but not in liver. Surprisingly, in all aluminium treated fish, classical stains unmasked a toxic effect on splenic-MMC, unequivocally characterized by a strong cell depletion. Furthermore, at 170 dpp transmission electron microscopy confirmed this data. Paradoxically, at the same time powerful immune responses were recorded in most vaccinated groups, including the aluminium treatment. Whatever the case, despite the observed adhesions and MMC depletion, fish physiology was not affected, and most side-effects were resolved after 300 dpp. Therefore, our data support adjuvant inclusion, but strongly suggest that use of aluminium must be further explored in detail before it might benefit the rational design of new vaccination strategies in aquaculture.
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Affiliation(s)
- Jorge Galindo-Villegas
- Department of Cell Biology and Histology, Faculty of Biology, Institute of Biomedical Research of Murcia-Arrixaca, Campus Universitario de Espinardo, University of Murcia, 30100 Murcia, Spain.
| | | | - José Meseguer
- Department of Cell Biology and Histology, Faculty of Biology, Institute of Biomedical Research of Murcia-Arrixaca, Campus Universitario de Espinardo, University of Murcia, 30100 Murcia, Spain
| | - Victoriano Mulero
- Department of Cell Biology and Histology, Faculty of Biology, Institute of Biomedical Research of Murcia-Arrixaca, Campus Universitario de Espinardo, University of Murcia, 30100 Murcia, Spain.
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152
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Beeson JG, Kurtovic L, Dobaño C, Opi DH, Chan JA, Feng G, Good MF, Reiling L, Boyle MJ. Challenges and strategies for developing efficacious and long-lasting malaria vaccines. Sci Transl Med 2019; 11:11/474/eaau1458. [DOI: 10.1126/scitranslmed.aau1458] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/05/2018] [Accepted: 11/02/2018] [Indexed: 12/24/2022]
Abstract
Although there has been major recent progress in malaria vaccine development, substantial challenges remain for achieving highly efficacious and durable vaccines against Plasmodium falciparum and Plasmodium vivax malaria. Greater knowledge of mechanisms and key targets of immunity are needed to accomplish this goal, together with new strategies for generating potent, long-lasting, functional immunity against multiple antigens. Implementation considerations in endemic areas will ultimately affect vaccine effectiveness, so innovations to simplify and enhance delivery are also needed. Whereas challenges remain, recent exciting progress and emerging knowledge promise hope for the future of malaria vaccines.
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153
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Ampomah PB, Kong WT, Zharkova O, Chua SCJH, Perumal Samy R, Lim LHK. Annexins in Influenza Virus Replication and Pathogenesis. Front Pharmacol 2018; 9:1282. [PMID: 30498445 PMCID: PMC6249340 DOI: 10.3389/fphar.2018.01282] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 10/18/2018] [Indexed: 12/26/2022] Open
Abstract
Influenza A viruses (IAVs) are important human respiratory pathogens which cause seasonal or periodic endemic infections. IAV can result in severe or fatal clinical complications including pneumonia and respiratory distress syndrome. Treatment of IAV infections is complicated because the virus can evade host immunity through antigenic drifts and antigenic shifts, to establish infections making new treatment options desirable. Annexins (ANXs) are a family of calcium and phospholipid binding proteins with immunomodulatory roles in viral infections, lung injury, and inflammation. A current understanding of the role of ANXs in modulating IAV infection and host responses will enable the future development of more effective antiviral therapies. This review presents a comprehensive understanding of the advances made in the field of ANXs, in particular, ANXA1 and IAV research and highlights the importance of ANXs as a suitable target for IAV therapy.
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Affiliation(s)
- Patrick Baah Ampomah
- Department of Physiology, NUS Immunology Program, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Wan Ting Kong
- Department of Physiology, NUS Immunology Program, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Olga Zharkova
- Department of Physiology, NUS Immunology Program, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Sonja C. J. H. Chua
- Department of Physiology, NUS Immunology Program, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - R. Perumal Samy
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lina H. K. Lim
- Department of Physiology, NUS Immunology Program, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore
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154
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Guo Y, Lei K, Tang L. Neoantigen Vaccine Delivery for Personalized Anticancer Immunotherapy. Front Immunol 2018; 9:1499. [PMID: 30013560 PMCID: PMC6036114 DOI: 10.3389/fimmu.2018.01499] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 06/15/2018] [Indexed: 12/22/2022] Open
Abstract
Cancer neoantigens derived from random somatic mutations in tumor tissue represent an attractive type of targets for the cancer immunotherapies including cancer vaccine. Vaccination against the tumor-specific neoantigens minimizes the potential induction of central and peripheral tolerance as well as the risk of autoimmunity. Neoantigen-based cancer vaccines have recently showed marked therapeutic potential in both preclinical and early-phase clinical studies. However, significant challenges remain in the effective and faithful identification of immunogenic neoepitopes and the efficient and safe delivery of the subunit vaccine components for eliciting potent and robust anticancer T cell responses. In this mini review, we provide a brief overview of the recent advances in the development of neoantigen-based cancer vaccines focusing on various vaccine delivery strategies for targeting and modulating antigen-presenting cells. We discuss current delivery approaches, including direct injection, ex vivo-pulsed dendritic cell vaccination, and biomaterial-assisted vaccination for enhancing the efficiency of neoantigen vaccines and present a perspective on future directions.
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Affiliation(s)
- Yugang Guo
- Institute of Bioengineering, École polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Kewen Lei
- Institute of Materials Science and Engineering, École polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Li Tang
- Institute of Bioengineering, École polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Institute of Materials Science and Engineering, École polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
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155
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Harnessing T Follicular Helper Cell Responses for HIV Vaccine Development. Viruses 2018; 10:v10060336. [PMID: 29921828 PMCID: PMC6024737 DOI: 10.3390/v10060336] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 06/15/2018] [Accepted: 06/16/2018] [Indexed: 12/12/2022] Open
Abstract
Passive administration of broadly neutralizing antibodies (bNAbs) capable of recognizing a broad range of viral strains to non-human primates has led to protection from infection with chimeric SIV/HIV virus (SHIV). This data suggests that generating protective antibody responses could be an effective strategy for an HIV vaccine. However, classic vaccine approaches have failed so far to induce such protective antibodies in HIV vaccine trials. HIV-specific bNAbs identified in natural infection show high levels of somatic hypermutations, demonstrating that they underwent extensive affinity maturation. It is likely that to gain ability to recognize diverse viral strains, vaccine-induced humoral responses will also require complex, iterative maturation. T follicular helper cells (Tfh) are a specialized CD4+ T cell subset that provides help to B cells in the germinal center for the generation of high-affinity and long-lasting humoral responses. It is therefore probable that the quality and quantity of Tfh responses upon vaccination will impact development of bNAbs. Here, we review studies that advanced our understanding of Tfh differentiation, function and regulation. We discuss correlates of Tfh responses and bNAb development in natural HIV infection. Finally, we highlight recent strategies to optimize Tfh responses upon vaccination and their impact on prophylactic HIV vaccine research.
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156
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Immunization Strategies Against Clostridium difficile. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1050:197-225. [PMID: 29383671 DOI: 10.1007/978-3-319-72799-8_12] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
C. difficile infection (CDI) is an important healthcare- but also community-associated disease. CDI is considered a public health threat and an economic burden. A major problem is the high rate of recurrences. Besides classical antibiotic treatments, new therapeutic strategies are needed to prevent infection, to treat patients and prevent recurrences. If fecal transplantation has been recommended to treat recurrences, another key approach is to restore immunity against C. difficile and its virulence factors. Here, after a summary concerning the virulence factors, the host immune response against C. difficile and its role in the outcome of disease, we review the different approaches of passive immunotherapies and vaccines developed against CDI. Passive immunization strategies are designed in function of the target antigen, the antibody-based product and its administration route. Similarly, for active immunization strategies, vaccine antigens can target toxins or surface proteins and immunization can be performed by parenteral or mucosal routes. For passive immunization and vaccination as well, we first present immunization assays performed in animal models and second in humans and associated clinical trials. The different studies are presented according to the mode of administration either parenteral or mucosal and the target antigens, either toxins or colonization factors.
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157
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Chen Z, Lv Y, Qi J, Zhu Q, Lu Y, Wu W. Overcoming or circumventing the stratum corneum barrier for efficient transcutaneous immunization. Drug Discov Today 2018; 23:181-186. [DOI: 10.1016/j.drudis.2017.09.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/20/2017] [Accepted: 09/27/2017] [Indexed: 10/18/2022]
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158
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Weissmueller NT, Marsay L, Schiffter HA, Carlisle RC, Rollier CS, Prud’homme RK, Pollard AJ. Alternative vaccine administration by powder injection: Needle-free dermal delivery of the glycoconjugate meningococcal group Y vaccine. PLoS One 2017; 12:e0183427. [PMID: 28837693 PMCID: PMC5570268 DOI: 10.1371/journal.pone.0183427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 08/03/2017] [Indexed: 11/30/2022] Open
Abstract
Powder-injectors use gas propulsion to deposit lyophilised drug or vaccine particles in the epidermal and sub epidermal layers of the skin. We prepared dry-powder (Tg = 45.2 ± 0.5°C) microparticles (58.1 μm) of a MenY-CRM197 glyconjugate vaccine (0.5% wt.) for intradermal needle-free powder injection (NFPI). SFD used ultrasound atomisation of the liquid vaccine-containing excipient feed, followed by lyophilisation above the glass transition temperature (Tg' = - 29.9 ± 0.3°C). This resulted in robust particles (density~ 0.53 ±0.09 g/cm3) with a narrow volume size distribution (mean diameter 58.1 μm, and span = 1.2), and an impact parameter (ρvr ~ 11.5 kg/m·s) sufficient to breach the Stratum corneum (sc). The trehalose, manitol, dextran (10 kDa), dextran (150 kDa) formulation, or TMDD (3:3:3:1), protected the MenY-CRM197 glyconjugate during SFD with minimal loss, no detectable chemical degradation or physical aggregation. In a capsular group Y Neisseria meningitidis serum bactericidal assay (SBA) with human serum complement, the needle free vaccine, which contained no alum adjuvant, induced functional protective antibody responses in vivo of similar magnitude to the conventional vaccine injected by hypodermic needle and syringe and containing alum adjuvant. These results demonstrate that needle-free vaccination is both technically and immunologically valid, and could be considered for vaccines in development.
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Affiliation(s)
- Nikolas T. Weissmueller
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford and the NIHR Oxford Biomedical Research Institute, Oxford, Oxfordshire, United Kingdom
- Department of Biological and Chemical Engineering, Princeton University, Princeton, New Jersey, United States of America
- Institute of Biomedical Engineering, Biomedical Ultrasonics, Biotherapy & Biopharmaceuticals Laboratory (BUBBL), Oxford, Oxfordshire, United Kingdom
| | - Leanne Marsay
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford and the NIHR Oxford Biomedical Research Institute, Oxford, Oxfordshire, United Kingdom
| | - Heiko A. Schiffter
- Institute of Biomedical Engineering, Biomedical Ultrasonics, Biotherapy & Biopharmaceuticals Laboratory (BUBBL), Oxford, Oxfordshire, United Kingdom
| | - Robert C. Carlisle
- Institute of Biomedical Engineering, Biomedical Ultrasonics, Biotherapy & Biopharmaceuticals Laboratory (BUBBL), Oxford, Oxfordshire, United Kingdom
| | - Christine S. Rollier
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford and the NIHR Oxford Biomedical Research Institute, Oxford, Oxfordshire, United Kingdom
| | - Robert K. Prud’homme
- Department of Biological and Chemical Engineering, Princeton University, Princeton, New Jersey, United States of America
| | - Andrew J. Pollard
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford and the NIHR Oxford Biomedical Research Institute, Oxford, Oxfordshire, United Kingdom
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159
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Roy A, Risalde MA, Casal C, Romero B, de Juan L, Menshawy AM, Díez-Guerrier A, Juste RA, Garrido JM, Sevilla IA, Gortázar C, Domínguez L, Bezos J. Oral Vaccination with Heat-Inactivated Mycobacterium bovis Does Not Interfere with the Antemortem Diagnostic Techniques for Tuberculosis in Goats. Front Vet Sci 2017; 4:124. [PMID: 28824927 PMCID: PMC5545688 DOI: 10.3389/fvets.2017.00124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/20/2017] [Indexed: 12/13/2022] Open
Abstract
Vaccination against tuberculosis (TB) is prohibited in cattle or other species subjected to specific TB eradication campaigns, due to the interference that it may cause with the official diagnostic tests. However, immunization with a heat-inactivated (HI) Mycobacterium bovis vaccine via the oral route has been suggested to overcome this issue. In this study, the main goal was to assess the interference of the HI vaccine by different routes of administration using a previous vaccination and re-vaccination (boosting) protocol. TB-free kid goats were divided into three groups: oral (n = 16), intramuscular (IM; n = 16), and control (n = 16). Results showed that there was a significant difference in the percentage of animals positive to the single intradermal test (SIT) and blood based interferon-gamma release assay (IGRA) caused by vaccination when performed in the IM group compared to the oral group (p < 0.001). Nevertheless, no positivity to the SIT or IGRA test was observed in orally vaccinated goats regardless of the different interpretation criteria applied. None of the groups presented positive antibody titers using an in-house ELISA and samples collected 2 months after the boost. These results suggest the potential usefulness of the HI vaccine by the oral route in goats to minimize the interference on diagnostic tests (skin and IGRA tests) and reducing the necessity of defined antigens to replace the traditional purified protein derivatives for diagnosis. Finally, the results pave the way to future efficacy studies in goats using different routes of HI vaccination.
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Affiliation(s)
- Alvaro Roy
- CZ Veterinaria S.A., Porriño, Pontevedra, Spain
| | - María A Risalde
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Carmen Casal
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Beatriz Romero
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Lucía de Juan
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Faculty of Veterinary Medicine, Department of Animal Health, Complutense University of Madrid, Madrid, Spain
| | - Ahmed M Menshawy
- Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Alberto Díez-Guerrier
- Faculty of Veterinary Medicine, Department of Animal Health, Complutense University of Madrid, Madrid, Spain.,MAEVA SERVET S.L., Madrid, Spain
| | - Ramon A Juste
- Servicio Regional de Investigación y Desarrollo Agrario (SERIDA), Villaviciosa, Spain
| | - Joseba M Garrido
- Animal Health Department, NEIKER-Tecnalia, Derio, Bizkaia, Spain
| | - Iker A Sevilla
- Animal Health Department, NEIKER-Tecnalia, Derio, Bizkaia, Spain
| | - Christian Gortázar
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Faculty of Veterinary Medicine, Department of Animal Health, Complutense University of Madrid, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,MAEVA SERVET S.L., Madrid, Spain
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160
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Zhang P, Andorko JI, Jewell CM. Impact of dose, route, and composition on the immunogenicity of immune polyelectrolyte multilayers delivered on gold templates. Biotechnol Bioeng 2016; 114:423-431. [PMID: 27567213 PMCID: PMC6033025 DOI: 10.1002/bit.26083] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/08/2016] [Accepted: 08/21/2016] [Indexed: 01/01/2023]
Abstract
Biomaterial vaccines offer new capabilities that can be exploited for both infectious disease and cancer. We recently developed a novel vaccine platform based on self‐assembly of immune signals into immune polyelectrolyte multilayers (iPEMs). These iPEM vaccines are electrostatically assembled from peptide antigens and nucleic acid‐based toll‐like receptor agonists (TLRas) that serve as molecular adjuvants. Gold nanoparticles (AuNPs) coated with iPEMs stimulate effector cytokine secretion in vitro and expand antigen‐specific T cells in mice. Here we investigated how the dose, injection route, and choice of molecular adjuvant impacts the ability of iPEMs to generate T cell immunity and anti‐tumor response in mice. Three injection routes—intradermal, subcutaneous, and intramuscular—and three iPEM dosing levels were employed. Intradermal injection induced the most potent antigen‐specific T cell responses and, for all routes, the level of response was dose‐dependent. We further discovered that these vaccines generate durable memory, indicated by potent, antigen‐specific CD8+ T cell recall responses in mice challenged with vaccine 49 days after a prime‐boost immunization regimen. In a common exogenous antigen melanoma model, iPEM vaccines slowed or stopped tumor growth more effectively than equivalent ad‐mixed formulations. Further, iPEMs containing CpG—a TLR9a—were more potent compared with iPEMs containing polyIC, a TLR3a. These findings demonstrate the ability of iPEMs to enhance response to several different classes of vaccine cargos, supporting iPEMs as a simple vaccine platform that mimics attractive features of other nanoparticles using immune signals that can be self‐assembled or coated on substrates. Biotechnol. Bioeng. 2017;114: 423–431. © 2016 The Authors. Biotechnology and Bioengineering Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Peipei Zhang
- Fischell Department of Bioengineering, University of Maryland, 2212 Jeong H. Kim Engineering Building, 8228 Paint Branch Drive, College Park, Maryland 20742
| | - James I Andorko
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Christopher M Jewell
- Fischell Department of Bioengineering, University of Maryland, 2212 Jeong H. Kim Engineering Building, 8228 Paint Branch Drive, College Park, Maryland 20742.,Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland.,Marlene and Stewart Greenebaum Cancer Center, Baltimore, Maryland.,United States Department of Veterans Affairs, Baltimore, Maryland
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