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Wallace R, Bliss CM, Parker AL. The Immune System-A Double-Edged Sword for Adenovirus-Based Therapies. Viruses 2024; 16:973. [PMID: 38932265 PMCID: PMC11209478 DOI: 10.3390/v16060973] [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: 05/25/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Pathogenic adenovirus (Ad) infections are widespread but typically mild and transient, except in the immunocompromised. As vectors for gene therapy, vaccine, and oncology applications, Ad-based platforms offer advantages, including ease of genetic manipulation, scale of production, and well-established safety profiles, making them attractive tools for therapeutic development. However, the immune system often poses a significant challenge that must be overcome for adenovirus-based therapies to be truly efficacious. Both pre-existing anti-Ad immunity in the population as well as the rapid development of an immune response against engineered adenoviral vectors can have detrimental effects on the downstream impact of an adenovirus-based therapeutic. This review focuses on the different challenges posed, including pre-existing natural immunity and anti-vector immunity induced by a therapeutic, in the context of innate and adaptive immune responses. We summarise different approaches developed with the aim of tackling these problems, as well as their outcomes and potential future applications.
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Affiliation(s)
- Rebecca Wallace
- Division of Cancer and Genetics, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK; (R.W.); (C.M.B.)
| | - Carly M. Bliss
- Division of Cancer and Genetics, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK; (R.W.); (C.M.B.)
- Systems Immunity University Research Institute, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK
| | - Alan L. Parker
- Division of Cancer and Genetics, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK; (R.W.); (C.M.B.)
- Systems Immunity University Research Institute, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK
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2
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Araújo NM, Rubio IGS, Toneto NPA, Morale MG, Tamura RE. The use of adenoviral vectors in gene therapy and vaccine approaches. Genet Mol Biol 2022; 45:e20220079. [PMID: 36206378 PMCID: PMC9543183 DOI: 10.1590/1678-4685-gmb-2022-0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 07/12/2022] [Indexed: 11/04/2022] Open
Abstract
Adenovirus was first identified in the 1950s and since then this pathogenic group
of viruses has been explored and transformed into a genetic transfer vehicle.
Modification or deletion of few genes are necessary to transform it into a
conditionally or non-replicative vector, creating a versatile tool capable of
transducing different tissues and inducing high levels of transgene expression.
In the early years of vector development, the application in monogenic diseases
faced several hurdles, including short-term gene expression and even a fatality.
On the other hand, an adenoviral delivery strategy for treatment of cancer was
the first approved gene therapy product. There is an increasing interest in
expressing transgenes with therapeutic potential targeting the cancer hallmarks,
inhibiting metastasis, inducing cancer cell death or modulating the immune
system to attack the tumor cells. Replicative adenovirus as vaccines may be even
older and date to a few years of its discovery, application of non-replicative
adenovirus for vaccination against different microorganisms has been
investigated, but only recently, it demonstrated its full potential being one of
the leading vaccination tools for COVID-19. This is not a new vector nor a new
technology, but the result of decades of careful and intense work in this
field.
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Affiliation(s)
- Natália Meneses Araújo
- Universidade Federal de São Paulo, Laboratório de Biologia Molecular
do Câncer, São Paulo, SP, Brazil.
| | - Ileana Gabriela Sanchez Rubio
- Universidade Federal de São Paulo, Laboratório de Biologia Molecular
do Câncer, São Paulo, SP, Brazil. ,Universidade Federal de São Paulo, Departamento de Ciências
Biológicas, Diadema, SP, Brazil. ,Universidade Federal de São Paulo, Laboratório de Ciências
Moleculares da Tireóide, Diadema, SP, Brazil.
| | | | - Mirian Galliote Morale
- Universidade Federal de São Paulo, Laboratório de Biologia Molecular
do Câncer, São Paulo, SP, Brazil. ,Universidade Federal de São Paulo, Departamento de Ciências
Biológicas, Diadema, SP, Brazil. ,Universidade Federal de São Paulo, Laboratório de Ciências
Moleculares da Tireóide, Diadema, SP, Brazil.
| | - Rodrigo Esaki Tamura
- Universidade Federal de São Paulo, Laboratório de Biologia Molecular
do Câncer, São Paulo, SP, Brazil. ,Universidade Federal de São Paulo, Departamento de Ciências
Biológicas, Diadema, SP, Brazil.
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3
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Senevirathne A, Park JY, Hewawaduge C, Perumalraja K, Lee JH. Eukaryotic expression system complemented with expressivity of Semliki Forest Virus's RdRp and invasiveness of engineered Salmonella demonstrate promising potential for bacteria mediated gene therapy. Biomaterials 2021; 279:121226. [PMID: 34736150 DOI: 10.1016/j.biomaterials.2021.121226] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 09/29/2021] [Accepted: 10/22/2021] [Indexed: 10/20/2022]
Abstract
This study describes an efficient eukaryotic expression system (pJHL204) built into the Salmonella delivery system to enhance the essential efficacy and effectiveness of conventional DNA therapy. The expression system utilizes RNA-dependent RNA polymerase activity (RdRp) of Semiliki Forest Virus attributing to dramatic antigen expression by cytoplasmic mRNA amplification. Functional characterization of the pJHL204 by in vitro and in vivo transfection studies revealed the improved expression of mRNA at least 150 folds than the RdRp mutant plasmid under in vitro conditions. Using green fluorescence protein (GFP) and mCherry as bait proteins this system was extensively characterized for plasmid delivery capacity, antigen expression, and safety using in vivo and in vitro models by employing flow cytometry, fluorescence microscopy, and immunohistochemical staining. Employment of Salmonella as a carrier significantly extends plasmid in vivo survivability and prolongs the effective duration until the elimination of the Salmonella carrier strain in the host. The strategy can be easily adapted for P2A connected multiple antigen delivery in a single vector system due to the significantly high cargo capacity of Salmonella. A mouse challenge study was carried out utilizing P2A connected H1N1 hemagglutinin (HA) and neuraminidase (NA) via the Salmonella carrier strain JOL2500 significantly reduced viral activity and protected mice against the H1N1 challenge and demonstrates potential to redefine in vivo DNA therapy as a reliable and safe system to treat human diseases using useful microbes like Salmonella.
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Affiliation(s)
- Amal Senevirathne
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Iksan, Republic of Korea
| | - Ji-Young Park
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Iksan, Republic of Korea
| | - Chamith Hewawaduge
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Iksan, Republic of Korea
| | - Kirthika Perumalraja
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Iksan, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Iksan, Republic of Korea.
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4
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Elkashif A, Alhashimi M, Sayedahmed EE, Sambhara S, Mittal SK. Adenoviral vector-based platforms for developing effective vaccines to combat respiratory viral infections. Clin Transl Immunology 2021; 10:e1345. [PMID: 34667600 PMCID: PMC8510854 DOI: 10.1002/cti2.1345] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 02/06/2023] Open
Abstract
Since the development of the first vaccine against smallpox over two centuries ago, vaccination strategies have been at the forefront of significantly impacting the incidences of infectious diseases globally. However, the increase in the human population, deforestation and climate change, and the rise in worldwide travel have favored the emergence of new viruses with the potential to cause pandemics. The ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic is a cruel reminder of the impact of novel pathogens and the suboptimal capabilities of conventional vaccines. Therefore, there is an urgent need to develop new vaccine strategies that allow the production of billions of doses in a short duration and are broadly protective against emerging and re-emerging infectious diseases. Extensive knowledge of the molecular biology and immunology of adenoviruses (Ad) has favored Ad vectors as platforms for vaccine design. The Ad-based vaccine platform represents an attractive strategy as it induces robust humoral and cell-mediated immune responses and can meet the global demand in a pandemic situation. This review describes the status of Ad vector-based vaccines in preclinical and clinical studies for current and emerging respiratory viruses, particularly coronaviruses, influenza viruses and respiratory syncytial viruses.
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Affiliation(s)
- Ahmed Elkashif
- Department of Comparative PathobiologyPurdue Institute for Inflammation, Immunology and Infectious Disease, and Purdue University Center for Cancer ResearchCollege of Veterinary MedicinePurdue UniversityWest LafayetteINUSA
| | - Marwa Alhashimi
- Department of Comparative PathobiologyPurdue Institute for Inflammation, Immunology and Infectious Disease, and Purdue University Center for Cancer ResearchCollege of Veterinary MedicinePurdue UniversityWest LafayetteINUSA
| | - Ekramy E Sayedahmed
- Department of Comparative PathobiologyPurdue Institute for Inflammation, Immunology and Infectious Disease, and Purdue University Center for Cancer ResearchCollege of Veterinary MedicinePurdue UniversityWest LafayetteINUSA
| | | | - Suresh K Mittal
- Department of Comparative PathobiologyPurdue Institute for Inflammation, Immunology and Infectious Disease, and Purdue University Center for Cancer ResearchCollege of Veterinary MedicinePurdue UniversityWest LafayetteINUSA
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5
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Tessarollo NG, Domingues ACM, Antunes F, da Luz JCDS, Rodrigues OA, Cerqueira OLD, Strauss BE. Nonreplicating Adenoviral Vectors: Improving Tropism and Delivery of Cancer Gene Therapy. Cancers (Basel) 2021; 13:1863. [PMID: 33919679 PMCID: PMC8069790 DOI: 10.3390/cancers13081863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
Recent preclinical and clinical studies have used viral vectors in gene therapy research, especially nonreplicating adenovirus encoding strategic therapeutic genes for cancer treatment. Adenoviruses were the first DNA viruses to go into therapeutic development, mainly due to well-known biological features: stability in vivo, ease of manufacture, and efficient gene delivery to dividing and nondividing cells. However, there are some limitations for gene therapy using adenoviral vectors, such as nonspecific transduction of normal cells and liver sequestration and neutralization by antibodies, especially when administered systemically. On the other hand, adenoviral vectors are amenable to strategies for the modification of their biological structures, including genetic manipulation of viral proteins, pseudotyping, and conjugation with polymers or biological membranes. Such modifications provide greater specificity to the target cell and better safety in systemic administration; thus, a reduction of antiviral host responses would favor the use of adenoviral vectors in cancer immunotherapy. In this review, we describe the structural and molecular features of nonreplicating adenoviral vectors, the current limitations to their use, and strategies to modify adenoviral tropism, highlighting the approaches that may allow for the systemic administration of gene therapy.
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Affiliation(s)
| | | | | | | | | | | | - Bryan E. Strauss
- Viral Vector Laboratory, Center for Translational Investigation in Oncology, Cancer Institute of São Paulo/LIM24, University of São Paulo School of Medicine, São Paulo 01246-000, Brazil; (N.G.T.); (A.C.M.D.); (F.A.); (J.C.d.S.d.L.); (O.A.R.); (O.L.D.C.)
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6
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Long-term maintenance of lung resident memory T cells is mediated by persistent antigen. Mucosal Immunol 2021; 14:92-99. [PMID: 32518368 PMCID: PMC7726002 DOI: 10.1038/s41385-020-0309-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 04/20/2020] [Accepted: 05/10/2020] [Indexed: 02/04/2023]
Abstract
Tissue-resident memory T cells (TRM) in the lungs are pivotal for protection against repeated infection with respiratory viruses. However, the gradual loss of these cells over time and the associated decline in clinical protection represent a serious limit in the development of efficient T cell based vaccines against respiratory pathogens. Here, using an adenovirus expressing influenza nucleoprotein (AdNP), we show that CD8 TRM in the lungs can be maintained for at least 1 year post vaccination. Our results reveal that lung TRM continued to proliferate in situ 8 months after AdNP vaccination. Importantly, this required airway vaccination and antigen persistence in the lung, as non-respiratory routes of vaccination failed to support long-term lung TRM maintenance. In addition, parabiosis experiments show that in AdNP vaccinated mice, the lung TRM pool is also sustained by continual replenishment from circulating memory CD8 T cells that differentiate into lung TRM, a phenomenon not observed in influenza-infected parabiont partners. Concluding, these results demonstrate key requirements for long-lived cellular immunity to influenza virus, knowledge that could be utilized in future vaccine design.
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7
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van der Gracht ET, Schoonderwoerd MJ, van Duikeren S, Yilmaz AN, Behr FM, Colston JM, Lee LN, Yagita H, van Gisbergen KP, Hawinkels LJ, Koning F, Klenerman P, Arens R. Adenoviral vaccines promote protective tissue-resident memory T cell populations against cancer. J Immunother Cancer 2020; 8:e001133. [PMID: 33293355 PMCID: PMC7725098 DOI: 10.1136/jitc-2020-001133] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Adenoviral vectors emerged as important platforms for cancer immunotherapy. Vaccination with adenoviral vectors is promising in this respect, however, their specific mechanisms of action are not fully understood. Here, we assessed the development and maintenance of vaccine-induced tumor-specific CD8+ T cells elicited upon immunization with adenoviral vectors. METHODS Adenoviral vaccine vectors encoding the full-length E7 protein from human papilloma virus (HPV) or the immunodominant epitope from E7 were generated, and mice were immunized intravenously with different quantities (107, 108 or 109 infectious units). The magnitude, kinetics and tumor protection capacity of the induced vaccine-specific T cell responses were evaluated. RESULTS The adenoviral vaccines elicited inflationary E7-specific memory CD8+ T cell responses in a dose-dependent manner. The magnitude of these vaccine-specific CD8+ T cells in the circulation related to the development of E7-specific CD8+ tissue-resident memory T (TRM) cells, which were maintained for months in multiple tissues after vaccination. The vaccine-specific CD8+ T cell responses conferred long-term protection against HPV-induced carcinomas in the skin and liver, and this protection required the induction and accumulation of CD8+ TRM cells. Moreover, the formation of CD8+ TRM cells could be enhanced by temporal targeting CD80/CD86 costimulatory interactions via CTLA-4 blockade early after immunization. CONCLUSIONS Together, these data show that adenoviral vector-induced CD8+ T cell inflation promotes protective TRM cell populations, and this can be enhanced by targeting CTLA-4.
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Affiliation(s)
| | - Mark Ja Schoonderwoerd
- Department of Gasteroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Suzanne van Duikeren
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ayse N Yilmaz
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Felix M Behr
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Julia M Colston
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Lian N Lee
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Hideo Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Klaas Pjm van Gisbergen
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Lukas Jac Hawinkels
- Department of Gasteroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Frits Koning
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul Klenerman
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Ramon Arens
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
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8
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Coughlan L. Factors Which Contribute to the Immunogenicity of Non-replicating Adenoviral Vectored Vaccines. Front Immunol 2020; 11:909. [PMID: 32508823 PMCID: PMC7248264 DOI: 10.3389/fimmu.2020.00909] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/20/2020] [Indexed: 01/12/2023] Open
Abstract
Adenoviral vectors are a safe and potently immunogenic vaccine delivery platform. Non-replicating Ad vectors possess several attributes which make them attractive vaccines for infectious disease, including their capacity for high titer growth, ease of manipulation, safety, and immunogenicity in clinical studies, as well as their compatibility with clinical manufacturing and thermo-stabilization procedures. In general, Ad vectors are immunogenic vaccines, which elicit robust transgene antigen-specific cellular (namely CD8+ T cells) and/or humoral immune responses. A large number of adenoviruses isolated from humans and non-human primates, which have low seroprevalence in humans, have been vectorized and tested as vaccines in animal models and humans. However, a distinct hierarchy of immunological potency has been identified between diverse Ad vectors, which unfortunately limits the potential use of many vectors which have otherwise desirable manufacturing characteristics. The precise mechanistic factors which underlie the profound disparities in immunogenicity are not clearly defined and are the subject of ongoing, detailed investigation. It has been suggested that a combination of factors contribute to the potent immunogenicity of particular Ad vectors, including the magnitude and duration of vaccine antigen expression following immunization. Furthermore, the excessive induction of Type I interferons by some Ad vectors has been suggested to impair transgene expression levels, dampening subsequent immune responses. Therefore, the induction of balanced, but not excessive stimulation of innate signaling is optimal. Entry factor binding or receptor usage of distinct Ad vectors can also affect their in vivo tropism following administration by different routes. The abundance and accessibility of innate immune cells and/or antigen-presenting cells at the site of injection contributes to early innate immune responses to Ad vaccination, affecting the outcome of the adaptive immune response. Although a significant amount of information exists regarding the tropism determinants of the common human adenovirus type-5 vector, very little is known about the receptor usage and tropism of rare species or non-human Ad vectors. Increased understanding of how different facets of the host response to Ad vectors contribute to their immunological potency will be essential for the development of optimized and customized Ad vaccine platforms for specific diseases.
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9
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Neukirch L, Fougeroux C, Andersson AMC, Holst PJ. The potential of adenoviral vaccine vectors with altered antigen presentation capabilities. Expert Rev Vaccines 2020; 19:25-41. [PMID: 31889453 DOI: 10.1080/14760584.2020.1711054] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Introduction: Despite their appeal as vaccine vectors, adenoviral vectors are yet unable to induce protective immune responses against some weakly immunogenic antigens. Additionally, the maximum doses of adenovirus-based vaccines are limited by vector-induced toxicity, causing vector elimination and diminished immune responses against the target antigen. In order to increase immune responses to the transgene, while maintaining a moderate vector dose, new technologies for improved transgene presentation have been developed for adenoviral vaccine vectors.Areas covered: This review provides an overview of different genetic-fusion adjuvants that aim to improve antigen presentation in the context of adenoviral vector-based vaccines. The influence on both T cell and B cell responses are discussed, with a main focus on two technologies: MHC class II-associated invariant chain and virus-like-vaccines.Expert opinion: Different strategies have been tested to improve adenovirus-based vaccinations with varying degrees of success. The reviewed genetic adjuvants were designed to increase antigen processing and MHC presentation, or promote humoral immune responses with an improved conformational antigen display. While none of the introduced technologies is universally applicable, this review shall give an overview to identify potential improvements for future vaccination approaches.
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Affiliation(s)
- Lasse Neukirch
- Clinical Cooperation Unit "Applied Tumor Immunity", National Center for Tumor Diseases and German Cancer Research Center, Heidelberg, Germany.,Center for Medical Parasitology, Department of International Health, Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Cyrielle Fougeroux
- Center for Medical Parasitology, Department of International Health, Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Marie Carola Andersson
- Center for Medical Parasitology, Department of International Health, Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.,InProTher ApS, Copenhagen, Denmark
| | - Peter Johannes Holst
- Center for Medical Parasitology, Department of International Health, Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.,InProTher ApS, Copenhagen, Denmark
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10
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Zaric M, Becker PD, Hervouet C, Kalcheva P, Doszpoly A, Blattman N, A O' Neill L, Yus BI, Cocita C, Kwon SY, Baker AH, Lord GM, Klavinskis LS. Skin immunisation activates an innate lymphoid cell-monocyte axis regulating CD8 + effector recruitment to mucosal tissues. Nat Commun 2019; 10:2214. [PMID: 31101810 PMCID: PMC6525176 DOI: 10.1038/s41467-019-09969-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 04/08/2019] [Indexed: 02/07/2023] Open
Abstract
CD8+ T cells provide a critical defence from pathogens at mucosal epithelia including the female reproductive tract (FRT). Mucosal immunisation is considered essential to initiate this response, however this is difficult to reconcile with evidence that antigen delivered to skin can recruit protective CD8+ T cells to mucosal tissues. Here we dissect the underlying mechanism. We show that adenovirus serotype 5 (Ad5) bio-distributes at very low level to non-lymphoid tissues after skin immunisation. This drives the expansion and activation of CD3- NK1.1+ group 1 innate lymphoid cells (ILC1) within the FRT, essential for recruitment of CD8+ T-cell effectors. Interferon gamma produced by activated ILC1 is critical to licence CD11b+Ly6C+ monocyte production of CXCL9, a chemokine required to recruit skin primed CXCR3+ CD8+T-cells to the FRT. Our findings reveal a novel role for ILC1 to recruit effector CD8+ T-cells to prevent virus spread and establish immune surveillance at barrier tissues.
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Affiliation(s)
- Marija Zaric
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | - Pablo D Becker
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | - Catherine Hervouet
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | - Petya Kalcheva
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | - Andor Doszpoly
- Centre for Cardiovascular Sciences, Queens Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Negin Blattman
- Biodesign Institute, Centre for Infectious Disease and Vaccinology, Arizona State University, Tempe, AZ, 85287, USA
| | - Lauren A O' Neill
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | - Barbara Ibarzo Yus
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | - Clement Cocita
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK
| | | | - Andrew H Baker
- Centre for Cardiovascular Sciences, Queens Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Graham M Lord
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK.,Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - Linda S Klavinskis
- School of Immunobiology and Microbial Sciences, King's College London, London, SE1 9RT, UK.
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11
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Replication deficient human adenovirus vector serotype 19a/64: Immunogenicity in mice and female cynomolgus macaques. Vaccine 2018; 36:6212-6222. [PMID: 30190120 DOI: 10.1016/j.vaccine.2018.07.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 07/19/2018] [Accepted: 07/30/2018] [Indexed: 01/03/2023]
Abstract
The human adenovirus type 19a/64 (hAd19a) is a rare serotype in the human population that transduces human dendritic cells (DCs) and human muscle cells more efficiently than the well-characterized human adenovirus type 5 (hAd5). To further characterize the potential of this vector as a vaccine we designed replication deficient hAd19a, hAd5 and MVA vectors expressing a papillomavirus (PV) antigen fused to the human MHC class II associated invariant chain T cell adjuvant (hIi) and investigated their immunogenicity in vivo in mice and cynomolgus macaques. We initially showed that the hIi encoded in the hAd5 enhanced PV specific CD8+ T cell responses in mice. The T cell responses induced after hAd19a vaccination was similar to those induced by hAd5 vaccination. The hAd19a induced responses were not reduced in presence of preexisting Ad5 immunity in mice. In macaques both vaccines were equally potent at inducing CD8+ T cells after MVA boost, while the level of CD4+ T cell responses were found to be broader in hAd19a primed animals. These data demonstrate the potential of hAd19a as an alternative vector to hAd5 to elicit potent T cell responses to PV.
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12
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Jahn ML, Steffensen MA, Christensen JP, Thomsen AR. Analysis of adenovirus-induced immunity to infection with Listeria monocytogenes: Fading protection coincides with declining CD8 T cell numbers and phenotypic changes. Vaccine 2018; 36:2825-2832. [PMID: 29627230 DOI: 10.1016/j.vaccine.2018.03.080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 03/23/2018] [Accepted: 03/28/2018] [Indexed: 01/09/2023]
Abstract
Defining correlates of T cell mediated protection is important in order to accelerate the development of efficient T cell based vaccines conferring long-term immunity. Extensive studies have provided important insight regarding the characteristics and functional properties of the effector and memory CD8 T cells induced by viral vector based vaccines. However, long-term protection has been difficult to achieve with T cell inducing vaccines, and the determinants underlying this loss in protection over time are still not fully defined. In this study we analyzed different parameters of the CD8 T cell response as a function of time after vaccination with a human serotype 5 adenovector expressing the glycoprotein (GP) of LCMV tethered to the MHC class II-associated invariant chain. Using this vector we have previously found that CD8 T cells mediate protection from challenge with GP-expressing Listeria monocytogenes at 60 days post vaccination, but only little protection after further 60 days, and we now confirm this observation. A comparison of vaccine-primed CD8 T cells early and late after vaccination revealed a minor decline in the overall numbers of antigen specific memory CD8 T cells during this interval. More importantly, we also observed phenotypic changes over time with a distinct decline in the frequency and number of KLRG1+ CD8 T cells, and, notably, adoptive transfer studies confirmed that memory CD8 T cells expressing KLRG1 are central to protection from systemic L. monocytogenes infection. Together these findings imply that multiple factors including changes in memory T cell numbers and phenotypic composition over time influence the longevity of CD8 T-cell mediated protection.
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Affiliation(s)
- Marie Louise Jahn
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Allan Randrup Thomsen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.
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13
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Li G, Zhu Y, Shao D, Chang H, Zhang X, Zhou D, Gao Y, Lan K, Deng Q. Recombinant covalently closed circular DNA of hepatitis B virus induces long-term viral persistence with chronic hepatitis in a mouse model. Hepatology 2018; 67:56-70. [PMID: 28749559 DOI: 10.1002/hep.29406] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 06/01/2017] [Accepted: 07/24/2017] [Indexed: 12/30/2022]
Abstract
UNLABELLED Covalently closed circular DNA of hepatitis B virus (HBV) is critical for viral persistence in vivo. We recently reported a technique involving recombinant covalently closed circular DNA (rcccDNA) of HBV by site-specific DNA recombination. Using hydrodynamic injection, rcccDNA induces a temporarily prolonged HBV antigenemia in immunocompetent mice, similar to acute resolving HBV infection. In this study, we simulated the pathophysiological impact of chronic hepatitis to reproduce rcccDNA persistence in mouse models. We showed that rcccDNA achieved long-lasting persistence in the presence of a compromised immune response or when transcriptional activity was repressed. To closely mimic chronic hepatitis, we used a replication-defective recombinant adenoviral vector to deliver rcccDNA to the liver, which led to prominent HBV persistence throughout the experiment duration (>62 weeks) in transgenic mice expressing Cre recombinase under the albumin promoter. A sustained necroinflammatory response and fibrosis were identified in mouse livers, with dysplastic lesions commonly seen during the late stage of viral persistence, analogous to the progressive pathology of clinical chronic hepatitis. CONCLUSION rcccDNA was intrinsically stable in vivo, enabling long-term persistence in the context of chronic hepatitis, and viral persistence, in turn, may promote progression of chronic liver disease; our study also presented a surrogate model of HBV cccDNA persistence in mice that could advance our understanding of the pathogenesis of chronic hepatitis B. (Hepatology 2018;67:56-70).
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Affiliation(s)
- Gaiyun Li
- CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE & MOH), School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yuanfei Zhu
- Key Laboratory of Medical Molecular Virology (MOE & MOH), School of Basic Medical Sciences, Fudan University, Shanghai, China.,Department of Hepatopathy, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dianhui Shao
- CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai, China
| | - Hao Chang
- CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE & MOH), School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xiaoming Zhang
- CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai, China
| | - Dongming Zhou
- CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai, China
| | - Yueqiu Gao
- Department of Hepatopathy, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Lan
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China
| | - Qiang Deng
- CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE & MOH), School of Basic Medical Sciences, Fudan University, Shanghai, China
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14
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Rojas JM, Avia M, Pascual E, Sevilla N, Martín V. Vaccination with recombinant adenovirus expressing peste des petits ruminants virus-F or -H proteins elicits T cell responses to epitopes that arises during PPRV infection. Vet Res 2017; 48:79. [PMID: 29157291 PMCID: PMC5697415 DOI: 10.1186/s13567-017-0482-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 10/26/2017] [Indexed: 12/22/2022] Open
Abstract
Peste des petits ruminants virus (PPRV) causes an economically important disease that limits productivity in small domestic ruminants and often affects the livestock of the poorest populations in developing countries. Animals that survive PPRV develop strong cellular and humoral responses, which are probably necessary for protection. Vaccination should thus aim at mimicking these natural responses. Immunization strategies against this morbillivirus using recombinant adenoviruses expressing PPRV-F or -H proteins can protect PPRV-challenged animals and permit differentiation of infected from vaccinated animals. Little is known of the T cell repertoire these recombinant vaccines induce. In the present work, we identified several CD4+ and CD8+ T cell epitopes in sheep infected with PPRV. We also show that recombinant adenovirus vaccination induced T cell responses to the same epitopes, and led to memory T cell differentiation. T cells primed by these recombinant adenovirus vaccines expanded after PPRV challenge and probably contributed to protection. These data validate the use of recombinant adenovirus expressing PPRV genes as DIVA strategies to control this highly contagious disease.
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Affiliation(s)
- José Manuel Rojas
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, Spain
| | - Miguel Avia
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, Spain
| | - Elena Pascual
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, Spain
| | - Noemí Sevilla
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, Spain
| | - Verónica Martín
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, Spain.
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15
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Rojas JM, Rodríguez-Calvo T, Sevilla N. Recall T cell responses to bluetongue virus produce a narrowing of the T cell repertoire. Vet Res 2017; 48:38. [PMID: 28662714 PMCID: PMC5492282 DOI: 10.1186/s13567-017-0444-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 06/26/2017] [Indexed: 11/12/2022] Open
Abstract
In most viral infections, recall T cell responses are critical for protection. The magnitude of these secondary responses can also affect the CD8 and CD4 epitope repertoire diversity. Bluetongue virus (BTV) infection in sheep elicits a T cell response that contributes to viremia control and could be relevant for cross-protection between BTV serotypes. Here, we characterized CD4+ and CD8+ T cell responses during primary and recall responses. During primary immune responses, both CD4+ and CD8+ T cell populations expanded by 14 days post-infection (dpi). CD4+ T cell populations showed a lower peak of expansion and prolonged contraction phase compared to CD8+ T cell populations. Recall responses to BTV challenge led to BTV-specific expansion and activation of CD8+ but not of CD4+ T cells. The evolution of the BTV-specific TCR repertoire was also characterized in response to VP7 peptide stimulation. Striking differences in repertoire development were noted over the time-course of infection. During primary responses, a broader repertoire was induced for MHC-I and MHC-II epitopes. However, during memory responses, a narrowed repertoire was activated towards a dominant motif in VP7 comprising amino acids 139–291. Monocytes were also examined, and expanded during acute infection resolution. In addition, pro-inflammatory cytokine levels increased after BTV inoculation and persisted throughout the experiment, indicative of a prolonged inflammatory state during BTV infections. These findings could have implications for vaccine design as the narrowing memory T cell repertoire induced after BTV re-infection could lead to the development of protective immunodominant TCR repertoires that differs between individual sheep.
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Affiliation(s)
- José-Manuel Rojas
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación Agraria y Alimentaria, Ctra Algete a El Casar km 8, Valdeolmos, 28130, Madrid, Spain
| | - Teresa Rodríguez-Calvo
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación Agraria y Alimentaria, Ctra Algete a El Casar km 8, Valdeolmos, 28130, Madrid, Spain.,Institute of Diabetes Research, Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany
| | - Noemí Sevilla
- Centro de Investigación en Sanidad Animal (CISA-INIA), Instituto Nacional de Investigación Agraria y Alimentaria, Ctra Algete a El Casar km 8, Valdeolmos, 28130, Madrid, Spain.
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16
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Ragonnaud E, Pedersen AG, Holst PJ. Breadth of T Cell Responses After Immunization with Adenovirus Vectors Encoding Ancestral Antigens or Polyvalent Papillomavirus Antigens. Scand J Immunol 2017; 85:182-190. [DOI: 10.1111/sji.12522] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 01/13/2017] [Indexed: 12/28/2022]
Affiliation(s)
- E. Ragonnaud
- Department of International Health Immunology and Microbiology; Center for Medical Parasitology; Copenhagen Denmark
| | - A. G. Pedersen
- Department of Systems Biology; Technical University of Denmark; Lyngby Denmark
| | - P. J. Holst
- Department of International Health Immunology and Microbiology; Center for Medical Parasitology; Copenhagen Denmark
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17
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Nazerai L, Bassi MR, Uddback IEM, Holst PJ, Christensen JP, Thomsen AR. Early life vaccination: Generation of adult-quality memory CD8+ T cells in infant mice using non-replicating adenoviral vectors. Sci Rep 2016; 6:38666. [PMID: 27929135 PMCID: PMC5144143 DOI: 10.1038/srep38666] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 11/14/2016] [Indexed: 12/02/2022] Open
Abstract
Intracellular pathogens represent a serious threat during early life. Importantly, even though the immune system of newborns may be characterized as developmentally immature, with a propensity to develop Th2 immunity, significant CD8+ T-cell responses may still be elicited in the context of optimal priming. Replication deficient adenoviral vectors have been demonstrated to induce potent CD8+ T-cell response in mice, primates and humans. The aim of the present study was therefore to assess whether replication-deficient adenovectors could overcome the risk of overwhelming antigen stimulation during the first period of life and provide a pertinent alternative in infant vaccinology. To address this, infant mice were vaccinated with three different adenoviral vectors and the CD8+ T-cell response after early life vaccination was explored. We assessed the frequency, polyfunctionality and in vivo cytotoxicity of the elicited memory CD8+ T cells, as well as the potential of these cells to respond to secondary infections and confer protection. We further tested the impact of maternal immunity against our replication-deficient adenoviral vector during early life vaccination. Overall, our results indicate that memory CD8+ T cells induced by adenoviral vectors in infant mice are of good quality and match those elicited in the adult host.
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Affiliation(s)
- Loulieta Nazerai
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Maria R Bassi
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Ida E M Uddback
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Peter J Holst
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Jan P Christensen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Allan R Thomsen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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18
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Li XZ, Lv L, Zhang X, Anchang KY, Abdullahi AY, Tu L, Wang X, Xia L, Zhang XX, Feng W, Lu C, Li S, Yuan ZG. Recombinant canine adenovirus type-2 expressing TgROP16 provides partial protection against acute Toxoplasma gondii infection in mice. INFECTION GENETICS AND EVOLUTION 2016; 45:447-453. [PMID: 27742446 DOI: 10.1016/j.meegid.2016.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 10/07/2016] [Accepted: 10/10/2016] [Indexed: 02/08/2023]
Abstract
We previously demonstrated that the survival time of BALB/c mice challenged with Toxoplasma gondii RH strain was prolonged by immunising the mice with a eukaryotic vector expressing the protein ROP16 of T. gondii. Building upon previous findings, we are exploring improved vaccination strategies to enhance protection. In this work, a novel recombinant canine adenovirus type 2 expressing ROP16 (CAV-2-ROP16) of T. gondii was constructed and identified to express ROP16 in Madin-Darby canine kidney cells (MDCK) cells by western blot (WB) and indirect immunofluorescence (IFA) assays. Intramuscular immunisation of BALB/c mice with CAV-2-ROP16 was performed to evaluate the humoral and cellular immune responses. This vaccination triggered significant humoral and cellular responses, including ROP16-stimulated lymphoproliferation (P<0.05). Compared to control groups, the CAV-2-ROP16 immunised mice had high production of IFN-γ, IL-2 and IL-12 (P<0.05), with a predominance of IgG2a production, but not IL-10 (P>0.05), revealing that a predominant Th1-type response had developed. The cell-mediated cytotoxic activity with high levels of IFN-γ and TNF-α was significantly increased in both CD4+ and CD8+ T-cell compartments in the mice immunised with CAV-2-ROP16 (P<0.05), compared to three control groups. In addition, when immunised mice were challenged with the RH strain of T. gondii, they showed a significantly increased survival rate (25%) 80days post infection compared with control mice that all died within seven days (P<0.05). The 25% protection rate elicited by the recombinant virus CAV-2-ROP16 has not been achieved in the field of anti-T. gondii vaccination until now. Our work presents the successful use of recombinant virus CAV-2-ROP16 in vaccination protocols to protect against intraperitoneal challenge with the virulent RH strain of T. gondii. This system was shown to be extremely efficient in eliciting humoral and cellular immune responses that led to a significant improvement in survival time in mice.
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Affiliation(s)
- Xiu-Zhen Li
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Lin Lv
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Xu Zhang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Kenneth Yongabi Anchang
- Phytobiotechnology Research Foundation Institute (PRF), Catholic University of Cameroon, 999108 Bamenda, Cameroon
| | - Auwalu Yusuf Abdullahi
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Liqing Tu
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Xiaohu Wang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province 510642, PR China
| | - Lijun Xia
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Xiu-Xiang Zhang
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Weili Feng
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Chunxia Lu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Shoujun Li
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China
| | - Zi-Guo Yuan
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, 483 Wushan Rd, Tianhe District, Guangzhou 510642, PR China; College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, PR China.
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19
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Wang R, Xu A, Zhang X, Wu J, Freywald A, Xu J, Xiang J. Novel exosome-targeted T-cell-based vaccine counteracts T-cell anergy and converts CTL exhaustion in chronic infection via CD40L signaling through the mTORC1 pathway. Cell Mol Immunol 2016; 14:529-545. [PMID: 27264687 DOI: 10.1038/cmi.2016.23] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/25/2016] [Accepted: 03/25/2016] [Indexed: 12/16/2022] Open
Abstract
CD8+ cytotoxic T lymphocyte (CTL) exhaustion is a chief issue for ineffective virus elimination in chronic infectious diseases. We generated novel ovalbumin (OVA)-specific OVA-Texo and HIV-specific Gag-Texo vaccines inducing therapeutic immunity. To assess their therapeutic effect in chronic infection, we developed a new chronic infection model by i.v. infecting C57BL/6 mice with the OVA-expressing adenovirus AdVova. During chronic AdVova infection, mouse CTLs were found to express the inhibitory molecules programmed cell-death protein-1 (PD-1) and lymphocyte-activation gene-3 (LAG-3) and to be functionally exhausted, showing a significant deficiency in T-cell proliferation, IFN-γ production and cytolytic effects. Naive CD8+ T cells upregulated inhibitory PD-ligand 1 (PD-L1), B- and T-lymphocyte attenuator and T-cell anergy-associated molecules (Grail and Itch) while down-regulating the proliferative response upon stimulation in mice with chronic infection. Remarkably, the OVA-Texo vaccine counteracted T-cell anergy and converted CTL exhaustion. The latter was associated with (i) the upregulation of a marker for CTL functionality, diacetylated histone-H3 (diAcH3), (ii) a fourfold increase in CTLs, occurring independent of host DCs or CD4+ T cells, and (iii) the restoration of CTL IFN-γ production and cytotoxicity. In vivo OVA-Texo-stimulated CTLs upregulated the activities of the mTORC1 pathway-related molecules Akt, S6, eIF4E and T-bet, and treatment of the CTLs with an mTORC1 inhibitor, rapamycin, significantly reduced the OVA-Texo-induced increase in CTLs. Interestingly, OVA-Texo-mediated CD40L signaling played a critical role in the observed immunological effects. Importantly, the Gag-Texo vaccine induced Gag-specific therapeutic immunity in chronic infection. Therefore, this study should have a serious impact on the development of new therapeutic vaccines for human immunodeficiency virus (HIV-1) infection.
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Affiliation(s)
- Rong Wang
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, Saskatchewan, Canada S7N4H4.,School of Public Health, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E5
| | - Aizhang Xu
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, Saskatchewan, Canada S7N4H4
| | - Xueying Zhang
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, Saskatchewan, Canada S7N4H4.,School of Public Health, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E5
| | - Jie Wu
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, Saskatchewan, Canada S7N4H4
| | - Andrew Freywald
- Department of Pathology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E5
| | - Jianqing Xu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Jim Xiang
- Cancer Research Cluster, Saskatchewan Cancer Agency, Saskatoon, Saskatchewan, Canada S7N4H4.,School of Public Health, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E5.,Department of Oncology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E5
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20
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Ragonnaud E, Andersson AMC, Pedersen AE, Laursen H, Holst PJ. An adenoviral cancer vaccine co-encoding a tumor associated antigen together with secreted 4-1BBL leads to delayed tumor progression. Vaccine 2016; 34:2147-56. [PMID: 27004934 DOI: 10.1016/j.vaccine.2015.06.087] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/19/2015] [Accepted: 06/22/2015] [Indexed: 01/24/2023]
Abstract
Previous studies have shown promising results when using an agonistic anti-4-1BB antibody treatment against established tumors. While this is promising, this type of treatment can induce severe side effects. Therefore, we decided to incorporate the membrane form of 4-1BB ligand (4-1BBL) in a replicative deficient adenovirus vaccine expressing the invariant chain (Ii) adjuvant fused to a tumor associated antigen (TAA). The Ii adjuvant increases and prolongs TAA specific CD8+ T cells as previously shown and local expression of 4-1BBL was chosen to avoid the toxicity associated with systemic antibody administration. Furthermore, adenovirus encoded 4-1BBL expression has previously been successfully used to enhance responses toward Plasmodium falciparum and Influenza A antigens. We showed that the incorporation of 4-1BBL in the adenovirus vector led to surface expression of 4-1BBL on antigen presenting cells, but it did not enhance T cell responses in mice towards the Ii linked antigen. In tumor-bearing mice, our vaccine was found to decrease the frequency of TAA specific CD8+ T cells, but this difference did not alter the therapeutic efficacy. In order to reconcile our findings with the previous reports of increased anti-cancer efficacy using systemically delivered 4-1BB agonists, we incorporated a secreted version of 4-1BBL (Fc-4-1BBL) in our vaccine and co-expressed it with the Ii linked to TAA. In tumor bearing mice, this vaccine initially delayed tumor growth and slightly increased survival compared to the vaccine expressing the membrane form of 4-1BBL. Accordingly, secreted 4-1BBL co-encoded with the Ii linked antigen may offer a simplification compared to administration of drug and vaccine separately.
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Affiliation(s)
- Emeline Ragonnaud
- Center for Medical Parasitology, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
| | - Anne-Marie C Andersson
- Center for Medical Parasitology, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Anders Elm Pedersen
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Henriette Laursen
- Center for Medical Parasitology, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Peter J Holst
- Center for Medical Parasitology, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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21
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Colston JM, Bolinger B, Cottingham MG, Gilbert S, Klenerman P. Modification of Antigen Impacts on Memory Quality after Adenovirus Vaccination. THE JOURNAL OF IMMUNOLOGY 2016; 196:3354-63. [PMID: 26944930 DOI: 10.4049/jimmunol.1502687] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 02/12/2016] [Indexed: 11/19/2022]
Abstract
The establishment of robust T cell memory is critical for the development of novel vaccines for infections and cancers. Classical memory generated by CD8(+)T cells is characterized by contracted populations homing to lymphoid organs. T cell memory inflation, as seen for example after CMV infection, is the maintenance of expanded, functional, tissue-associated effector memory cell pools. Such memory pools may also be induced after adenovirus vaccination, and we recently defined common transcriptional and phenotypic features of these populations in mice and humans. However, the rules that govern which epitopes drive memory inflation compared with classical memory are not fully defined, and thus it is not currently possible to direct this process. We used our adenoviral model of memory inflation to first investigate the role of the promoter and then the role of the epitope context in determining memory formation. Specifically, we tested the hypothesis that conventional memory could be converted to inflationary memory by simple presentation of the Ag in the form of minigene vectors. When epitopes from LacZ and murine CMV that normally induce classical memory responses were presented as minigenes, they induced clear memory inflation. These data demonstrate that, regardless of the transgene promoter, the polypeptide context of a CD8(+)T cell epitope may determine whether classical or inflating memory responses are induced. The ability to direct this process by the use of minigenes is relevant to the design of vaccines and understanding of immune responses to pathogens.
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Affiliation(s)
- Julia M Colston
- Nuffield Department of Medicine, Peter Medawar Building for Pathogen Research, University of Oxford, Oxford OX1 3SY, United Kingdom; and
| | - Beatrice Bolinger
- Nuffield Department of Medicine, Peter Medawar Building for Pathogen Research, University of Oxford, Oxford OX1 3SY, United Kingdom; and
| | | | - Sarah Gilbert
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, United Kindgom
| | - Paul Klenerman
- Nuffield Department of Medicine, Peter Medawar Building for Pathogen Research, University of Oxford, Oxford OX1 3SY, United Kingdom; and
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22
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Xiang K, Ying G, Yan Z, Shanshan Y, Lei Z, Hongjun L, Maosheng S. Progress on adenovirus-vectored universal influenza vaccines. Hum Vaccin Immunother 2016; 11:1209-22. [PMID: 25876176 DOI: 10.1080/21645515.2015.1016674] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Influenza virus (IFV) infection causes serious health problems and heavy financial burdens each year worldwide. The classical inactivated influenza virus vaccine (IIVV) and live attenuated influenza vaccine (LAIV) must be updated regularly to match the new strains that evolve due to antigenic drift and antigenic shift. However, with the discovery of broadly neutralizing antibodies that recognize conserved antigens, and the CD8(+) T cell responses targeting viral internal proteins nucleoprotein (NP), matrix protein 1 (M1) and polymerase basic 1 (PB1), it is possible to develop a universal influenza vaccine based on the conserved hemagglutinin (HA) stem, NP, and matrix proteins. Recombinant adenovirus (rAd) is an ideal influenza vaccine vector because it has an ideal stability and safety profile, induces balanced humoral and cell-mediated immune responses due to activation of innate immunity, provides 'self-adjuvanting' activity, can mimic natural IFV infection, and confers seamless protection against mucosal pathogens. Moreover, this vector can be developed as a low-cost, rapid-response vaccine that can be quickly manufactured. Therefore, an adenovirus vector encoding conserved influenza antigens holds promise in the development of a universal influenza vaccine. This review will summarize the progress in adenovirus-vectored universal flu vaccines and discuss future novel approaches.
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Key Words
- ADCC, antibody-dependent cell-mediated cytotoxicity
- APC, antigen-presenting cell
- Ad: adenovirus
- CAR, Coxsackie-Adenovirus Receptor
- CTLs, cytotoxic T lymphocytes
- DC, lung dendritic cells
- DVD, drug–vaccine duo
- FcγRs, Fc receptors for IgG
- HA, hemagglutinin
- HDAd, helper-dependent adenoviral
- HEK293, human embryonic kidney 293 cell
- HI, hemagglutination inhibition
- HLA, human leukocyte antigen
- IF-γ, interferon-γ
- IFV, Influenza virus
- IIVV, inactivated influenza virus vaccine
- IL-2, interleukin-2
- ITRs, inverted terminal repeats
- LAIV, live attenuated influenza vaccine
- M1, matrix protein 1
- M2, matrix protein 2
- MHC-I, major histocompatibility complex class I
- NA, neuraminidase
- NP, nucleoprotein
- RCA, replication competent adenovirus
- VAERD, vaccine-associated enhanced respiratory disease
- adenovirus vector
- broadly neutralizing antibodies
- cellular immunity
- flu, influenza
- hemagglutinin
- humoral immunity
- influenza
- mAbs, monoclonal antibodies
- mucosal immunity
- rAd, recombinant adenovirus
- universal vaccine
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Affiliation(s)
- Kui Xiang
- a Department of Molecular Biology; Institute of Medical Biology; Chinese Academy of Medical Sciences; Peking Union Medical College ; Kunming , Yunnan , PR China
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Adenovirus Specific Pre-Immunity Induced by Natural Route of Infection Does Not Impair Transduction by Adenoviral Vaccine Vectors in Mice. PLoS One 2015; 10:e0145260. [PMID: 26679149 PMCID: PMC4682971 DOI: 10.1371/journal.pone.0145260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 11/30/2015] [Indexed: 11/19/2022] Open
Abstract
Recombinant human adenovirus serotype 5 (HAd5V) vectors are gold standards of T-cell immunogenicity as they efficiently induce also humoral responses to exogenous antigens, in particular when used in prime-boost protocols. Some investigators have shown that pre-existing immunity to adenoviruses interferes with transduction by adenoviral vectors, but the actual extent of this interference is not known since it has been mostly studied in mice using unnatural routes of infection and virus doses. Here we studied the effects of HAd5V-specific immune responses induced by intranasal infection on the transduction efficiency of recombinant adenovirus vectors. Of interest, when HAd5V immunity was induced in mice by the natural respiratory route, the pre-existing immunity against HAd5V did not significantly interfere with the B and T-cell immune responses against the transgene products induced after a prime/boost inoculation protocol with a recombinant HAd5V-vector, as measured by ELISA and in vivo cytotoxic T-cell assays, respectively. We also correlated the levels of HAd5V-specific neutralizing antibodies (Ad5NAbs) induced in mice with the levels of Ad5NAb titers found in humans. The data indicate that approximately 60% of the human serum samples tested displayed Ad5NAb levels that could be overcome with a prime-boost vaccination protocol. These results suggest that recombinant HAd5V vectors are potentially useful for prime-boost vaccination strategies, at least when pre-existing immunity against HAd5V is at low or medium levels.
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A Toxoplasma gondii vaccine encoding multistage antigens in conjunction with ubiquitin confers protective immunity to BALB/c mice against parasite infection. Parasit Vectors 2015; 8:498. [PMID: 26420606 PMCID: PMC4588682 DOI: 10.1186/s13071-015-1108-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/22/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Toxoplasma gondii is a widely prevalent intracellular parasite which infects almost all warm-blooded animals including humans and causes serious zoonotic toxoplasmosis. DNA vaccines have proved effective in the protection against parasites. However, the problems of weak immunity and inefficient delivery of DNA vaccine remain major issues. Therefore, comprehensive antigens derived from all stages of the parasite, effective adjuvants and delivery systems should be considered in the vaccine construction. METHODS SAG3101-144,ROP18347-396, MIC6288-347, GRA7182-224, MAG158-125, BAG1156-211 and SPA142-200, derived from antigens in tachyzoite, bradyzoite and sporozoite stages of T. gondii were screened based on CD8(+) T cell epitope binding affinity to HLA and H-2. We constructed a recombinant DNA vaccine and an adenovirus vaccine encoding multi-stage antigen of T. gondii linked to ubiquitin molecules and vaccinated BALB/c mice with different strategies. Antibodies, cytokines, splenocytes proliferation, as well as the percentage of CD4(+) and CD8(+) T cells in immunized mouse were analyzed by the Enzyme-Linked Immunosorbent Assays (ELISA), Flow Cytometry (FCM). Protective efficacy was evaluated by challenging immunized mice with type I and type II parasite. RESULTS Our results indicated that the DNA vaccine had the advantage of inducing a stronger humoral response, whereas the adenovirus-vectored vaccine effectively improved the cellular immune response. Priming with DNA vaccine and boosting with adenovirus-vectored vaccine induced Th1-type immune responses with highest levels of IgG2a and secretion of cytokines IL-2 and IFN-γ. Effective protection against type I and type II parasite with an increase in survival rate and a decrease in brain cyst burden was achieved in immunized mice. CONCLUSIONS Priming vaccination with DNA vaccine and boosting with the recombinant adenovirus vaccine encoding ubiquitin conjugated multi-stage antigens of T. gondii was proved to be a potential strategy against the infection of type I and type II parasite.
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Becker PD, Hervouet C, Mason GM, Kwon SY, Klavinskis LS. Skin vaccination with live virus vectored microneedle arrays induce long lived CD8(+) T cell memory. Vaccine 2015; 33:4691-8. [PMID: 25917679 DOI: 10.1016/j.vaccine.2015.04.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 03/27/2015] [Accepted: 04/02/2015] [Indexed: 01/31/2023]
Abstract
A simple dissolvable microneedle array (MA) platform has emerged as a promising technology for vaccine delivery, due to needle-free injection with a formulation that preserves the immunogenicity of live viral vectored vaccines dried in the MA matrix. While recent studies have focused largely on design parameters optimized to induce primary CD8(+) T cell responses, the hallmark of a vaccine is synonymous with engendering long-lasting memory. Here, we address the capacity of dried MA vaccination to programme phenotypic markers indicative of effector/memory CD8(+) T cell subsets and also responsiveness to recall antigen benchmarked against conventional intradermal (ID) injection. We show that despite a slightly lower frequency of dividing T cell receptor transgenic CD8(+) T cells in secondary lymphoid tissue at an early time point, the absolute number of CD8(+) T cells expressing an effector memory (CD62L(-)CD127(+)) and central memory (CD62L(+)CD127(+)) phenotype during peak expansion were comparable after MA and ID vaccination with a recombinant human adenovirus type 5 vector (AdHu5) encoding HIV-1 gag. Similarly, both vaccination routes generated CD8(+) memory T cell subsets detected in draining LNs for at least two years post-vaccination capable of responding to secondary antigen. These data suggest that CD8(+) T cell effector/memory generation and long-term memory is largely unaffected by physical differences in vaccine delivery to the skin via dried MA or ID suspension.
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Affiliation(s)
- Pablo D Becker
- Peter Gorer Department of Immunobiology, Faculty of Life Sciences and Medicine, Kings's College London, London SE1 9RT, United Kingdom.
| | - Catherine Hervouet
- Peter Gorer Department of Immunobiology, Faculty of Life Sciences and Medicine, Kings's College London, London SE1 9RT, United Kingdom.
| | - Gavin M Mason
- Peter Gorer Department of Immunobiology, Faculty of Life Sciences and Medicine, Kings's College London, London SE1 9RT, United Kingdom.
| | | | - Linda S Klavinskis
- Peter Gorer Department of Immunobiology, Faculty of Life Sciences and Medicine, Kings's College London, London SE1 9RT, United Kingdom.
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Holst PJ, Jensen BAH, Ragonnaud E, Thomsen AR, Christensen JP. Targeting of non-dominant antigens as a vaccine strategy to broaden T-cell responses during chronic viral infection. PLoS One 2015; 10:e0117242. [PMID: 25679375 PMCID: PMC4334508 DOI: 10.1371/journal.pone.0117242] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 12/22/2014] [Indexed: 12/26/2022] Open
Abstract
In this study, we compared adenoviral vaccine vectors with the capacity to induce equally potent immune responses against non-dominant and immunodominant epitopes of murine lymphocytic choriomeningitis virus (LCMV). Our results demonstrate that vaccination targeting non-dominant epitopes facilitates potent virus-induced T-cell responses against immunodominant epitopes during subsequent challenge with highly invasive virus. In contrast, when an immunodominant epitope was included in the vaccine, the T-cell response associated with viral challenge remained focussed on that epitope. Early after challenge with live virus, the CD8+ T cells specific for vaccine-encoded epitopes, displayed a phenotype typically associated with prolonged/persistent antigenic stimulation marked by high levels of KLRG-1, as compared to T cells reacting to epitopes not included in the vaccine. Notably, this association was lost over time in T cells specific for the dominant T cell epitopes, and these cells were fully capable of expanding in response to a new viral challenge. Overall, our data suggests a potential for broadening of the antiviral CD8+ T-cell response by selecting non-dominant antigens to be targeted by vaccination. In addition, our findings suggest that prior adenoviral vaccination is not likely to negatively impact the long-term and protective immune response induced and maintained by a vaccine-attenuated chronic viral infection.
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Affiliation(s)
- Peter J. Holst
- Department of International Health, Immunology and Microbiology, University of Copenhagen, The Panum Institute, Copenhagen, Denmark
- Centre for Medical Parasitology, Department of International Health, Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Benjamin A. H. Jensen
- Department of International Health, Immunology and Microbiology, University of Copenhagen, The Panum Institute, Copenhagen, Denmark
| | - Emeline Ragonnaud
- Centre for Medical Parasitology, Department of International Health, Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Allan R. Thomsen
- Department of International Health, Immunology and Microbiology, University of Copenhagen, The Panum Institute, Copenhagen, Denmark
| | - Jan P. Christensen
- Department of International Health, Immunology and Microbiology, University of Copenhagen, The Panum Institute, Copenhagen, Denmark
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Coughlan L, Mullarkey C, Gilbert S. Adenoviral vectors as novel vaccines for influenza. ACTA ACUST UNITED AC 2015; 67:382-99. [PMID: 25560474 DOI: 10.1111/jphp.12350] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 10/05/2014] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Influenza is a viral respiratory disease causing seasonal epidemics, with significant annual illness and mortality. Emerging viruses can pose a major pandemic threat if they acquire the capacity for sustained human-to-human transmission. Vaccination reduces influenza-associated mortality and is critical in minimising the burden on the healthcare system. However, current vaccines are not always effective in at-risk populations and fail to induce long-lasting protective immunity against a range of viruses. KEY FINDINGS The development of 'universal' influenza vaccines, which induce heterosubtypic immunity capable of reducing disease severity, limiting viral shedding or protecting against influenza subtypes with pandemic potential, has gained interest in the research community. To date, approaches have focused on inducing immune responses to conserved epitopes within the stem of haemagglutinin, targeting the ectodomain of influenza M2e or by stimulating cellular immunity to conserved internal antigens, nucleoprotein or matrix protein 1. SUMMARY Adenoviral vectors are potent inducers of T-cell and antibody responses and have demonstrated safety in clinical applications, making them an excellent choice of vector for delivery of vaccine antigens. In order to circumvent pre-existing immunity in humans, serotypes from non-human primates have recently been investigated. We will discuss the pre-clinical development of these novel vectors and their advancement to clinical trials.
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Nielsen KN, Steffensen MA, Christensen JP, Thomsen AR. Priming of CD8 T cells by adenoviral vectors is critically dependent on B7 and dendritic cells but only partially dependent on CD28 ligation on CD8 T cells. THE JOURNAL OF IMMUNOLOGY 2014; 193:1223-32. [PMID: 24951814 DOI: 10.4049/jimmunol.1400197] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Adenoviral vectors have long been forerunners in the development of effective CD8 T cell-based vaccines; therefore, it is imperative that we understand the factors controlling the induction of robust and long-lasting transgene-specific immune responses by these vectors. In this study, we investigated the organ sites, molecules, and cell subsets that play a critical role in the priming of transgene-specific CD8 T cells after vaccination with a replication-deficient adenoviral vector. Using a human adenovirus serotype 5 (Ad5) vector and genetically engineered mice, we found that CD8(+) and/or CD103(+) dendritic cells in the draining lymph node played a critical role in the priming of Ad5-induced CD8 T cell responses. Moreover, we found that CD80/86, but not CD28, was essential for efficient generation of both primary effectors and memory CD8 T cells. Interestingly, the lack of CD28 expression resulted in a delayed primary response, whereas memory CD8 T cells generated in CD28-deficient mice appeared almost normal in terms of both phenotype and effector cytokine profile, but they exhibited a significantly reduced proliferative capacity upon secondary challenge while retaining immediate in vivo effector capabilities: in vivo cytotoxicity and short-term in vivo protective capacity. Overall, our data point to an absolute requirement for professional APCs and the expression of the costimulatory molecules CD80/86 for efficient CD8 T cell priming by adenoviral vectors. Additionally, our results suggest the existence of an alternative receptor for CD80/86, which may substitute, in part, for CD28.
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Affiliation(s)
- Karen N Nielsen
- Department of International Health, Immunology, and Microbiology, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Maria A Steffensen
- Department of International Health, Immunology, and Microbiology, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Jan P Christensen
- Department of International Health, Immunology, and Microbiology, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Allan R Thomsen
- Department of International Health, Immunology, and Microbiology, University of Copenhagen, DK-2200 Copenhagen, Denmark
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Majhen D, Calderon H, Chandra N, Fajardo CA, Rajan A, Alemany R, Custers J. Adenovirus-based vaccines for fighting infectious diseases and cancer: progress in the field. Hum Gene Ther 2014; 25:301-17. [PMID: 24580050 DOI: 10.1089/hum.2013.235] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The field of adenovirology is undergoing rapid change in response to increasing appreciation of the potential advantages of adenoviruses as the basis for new vaccines and as vectors for gene and cancer therapy. Substantial knowledge and understanding of adenoviruses at a molecular level has made their manipulation for use as vaccines and therapeutics relatively straightforward in comparison with other viral vectors. In this review we summarize the structure and life cycle of the adenovirus and focus on the use of adenovirus-based vectors in vaccines against infectious diseases and cancers. Strategies to overcome the problem of preexisting antiadenovirus immunity, which can hamper the immunogenicity of adenovirus-based vaccines, are discussed. When armed with tumor-associated antigens, replication-deficient and oncolytic adenoviruses can efficiently activate an antitumor immune response. We present concepts on how to use adenoviruses as therapeutic cancer vaccines and consider some of the strategies used to further improve antitumor immune responses. Studies that explore the prospect of adenoviruses as vaccines against infectious diseases and cancer are underway, and here we give an overview of the latest developments.
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Singh S, Vedi S, Li W, Samrat SK, Kumar R, Agrawal B. Recombinant adenoviral vector expressing HCV NS4 induces protective immune responses in a mouse model of Vaccinia-HCV virus infection: a dose and route conundrum. Vaccine 2014; 32:2712-21. [PMID: 24631092 DOI: 10.1016/j.vaccine.2014.02.080] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 02/19/2014] [Accepted: 02/26/2014] [Indexed: 12/18/2022]
Abstract
Hepatitis C virus (HCV) leads to chronic infection in the majority of infected patients presumably due to failure or inefficiency of the immune responses generated. Both antibody and cellular immune responses have been suggested to be important in viral clearance. Non-replicative adenoviral vectors expressing antigens of interest are considered as attractive vaccine vectors for a number of pathogens. In this study, we sought to evaluate cellular and humoral immune responses against HCV NS4 protein using recombinant adenovirus as a vaccine vector expressing NS4 antigen. We have also measured the effect of antigen doses and routes of immunization on the quality and extent of the immune responses, especially their role in viral load reduction, in a recombinant Vaccinia-HCV (Vac-HCV) infection mouse model. Our results show that an optimum dose of adenovirus vector (2×10(7)pfu/mouse) administered intramuscularly (i.m.) induces high T cell proliferation, granzyme B-expressing CD8(+) T cells, pro-inflammatory cytokines such as IFN-γ, TNF-α, IL-2 and IL-6, and antibody responses that can significantly reduce the Vac-HCV viral load in the ovaries of female C57BL/6 mice. Our results demonstrate that recombinant adenovirus vector can induce both humoral and cellular protective immunity against HCV-NS4 antigen, and that immunity is intricately controlled by route and dose of immunizing vector.
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Affiliation(s)
- Shakti Singh
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Satish Vedi
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Wen Li
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Subodh Kumar Samrat
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Rakesh Kumar
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Babita Agrawal
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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Lukashevich IS, Shirwan H. Adenovirus-Based Vectors for the Development of Prophylactic and Therapeutic Vaccines. NOVEL TECHNOLOGIES FOR VACCINE DEVELOPMENT 2014. [PMCID: PMC7121347 DOI: 10.1007/978-3-7091-1818-4_8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Emerging and reemerging infectious diseases as well as cancer pose great global health impacts on the society. Vaccines have emerged as effective treatments to prevent or reduce the burdens of already developed diseases. This is achieved by means of activating various components of the immune system to generate systemic inflammatory reactions targeting infectious agents or diseased cells for control/elimination. DNA virus-based genetic vaccines gained significant attention in the past decades owing to the development of DNA manipulation technologies, which allowed engineering of recombinant viral vectors encoding sequences for foreign antigens or their immunogenic epitopes as well as various immunomodulatory molecules. Despite tremendous progress in the past 50 years, many hurdles still remain for achieving the full clinical potential of viral-vectored vaccines. This chapter will present the evolution of vaccines from “live” or “attenuated” first-generation agents to recombinant DNA and viral-vectored vaccines. Particular emphasis will be given to human adenovirus (Ad) for the development of prophylactic and therapeutic vaccines. Ad biological properties related to vaccine development will be highlighted along with their advantages and potential hurdles to be overcome. In particular, we will discuss (1) genetic modifications in the Ad capsid protein to reduce the intrinsic viral immunogenicity, (2) antigen capsid incorporation for effective presentation of foreign antigens to the immune system, (3) modification of the hexon and fiber capsid proteins for Ad liver de-targeting and selective retargeting to cancer cells, (4) Ad-based vaccines carrying “arming” transgenes with immunostimulatory functions as immune adjuvants, and (5) oncolytic Ad vectors as a new therapeutic approach against cancer. Finally, the combination of adenoviral vectors with other non-adenoviral vector systems, the prime/boost strategy of immunization, clinical trials involving Ad-based vaccines, and the perspectives for the field development will be discussed.
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Affiliation(s)
- Igor S Lukashevich
- Department of Pharmacology and Toxicolog Department of Microbiology and Immunolog, University of Louisville, Louisville, Kentucky USA
| | - Haval Shirwan
- Department of Microbiology and Immunolog, University of Louisville, Louisville, Kentucky USA
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Zhang D, Zheng L, Shi H, Chen X, Wan Y, Zhang H, Li M, Lu L, Luo S, Yin T, Lin H, He S, Luo Y, Yang L. Suppression of peritoneal tumorigenesis by placenta-derived mesenchymal stem cells expressing endostatin on colorectal cancer. Int J Med Sci 2014; 11:870-9. [PMID: 25013366 PMCID: PMC4081308 DOI: 10.7150/ijms.8758] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 05/11/2014] [Indexed: 02/05/2023] Open
Abstract
MSCs-based therapy for cancer is a relatively new but rapidly growing area of research. Human term placenta, an attractive source of MSCs (PMSCs), appears to have great advantage due to its easy access without invasive procedures, its lack of ethical issues and its high-throughput and young age. In the present study, we isolated MSCs from placenta and characterized their morphology and differentiation capacities. We next investigated the underlying antitumor effects and the potential mechanism of PMSCs to express endostatin using adenoviral transduction (Ad-Endo) in a colorectal peritoneal carcinomatosis (CRPC) mouse model. For in vitro experiments, the migratory potential of Ad-Endo-PMSCs towards tumor cells was demonstrated using a double-chamber assay, and the anti-angiogenesis ability of endostatin from engineered PMSCs was evaluated using the tube formation assay. For the in vivo study, mice harboring CT26 colorectal cancer indicated a significant reduction in tumor nodules and a prolongation of survival following Ad-Endo-PMSCs therapy. These observations were associated with significantly decreased tumor cell proliferation and blood vessel counts as well as increased tumor cell apoptosis. These data suggested the potential of PMSCs-based gene therapy for the targeted delivery of therapeutic proteins in cancer.
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Affiliation(s)
- Dongmei Zhang
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Lan Zheng
- 2. Department of Obstetrics and Gynecology, Second West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
| | - Huashan Shi
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Xiancheng Chen
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Yang Wan
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Hailong Zhang
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Meng Li
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Lian Lu
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Shuntao Luo
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Tao Yin
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Honggang Lin
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Shasha He
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Yan Luo
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Li Yang
- 1. State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
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Adenoviral delivery of recombinant hepatitis B virus expressing foreign antigenic epitopes for immunotherapy of persistent viral infection. J Virol 2013; 88:3004-15. [PMID: 24371056 DOI: 10.1128/jvi.02756-13] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
UNLABELLED We previously reported a proof-of-concept study for curing chronic hepatitis B virus (HBV) infection using a foreign-antigen recombinant HBV (rHBV) as a gene therapy vector. Targeted elimination of wild-type HBV (wtHBV)-infected cells could be achieved by functionally activating an in situ T-cell response against the foreign antigen. However, as chronic HBV infection spreads to all hepatocytes, specific targeting of virus-infected cells is thought to be less critical. It is also feared that rHBV may not induce active immunization in a setting resembling natural infection. For this immunotherapeutic approach to be practically viable, in the present study, we used a recombinant adenovirus (rAd) vector for rHBV delivery. The rAd vector allowed efficient transduction of wtHBV-producing HepG2 cells, with transferred rHBV undergoing dominant viral replication. Progeny rHBV virions proved to be infectious, as demonstrated in primary tupaia hepatocytes. These results greatly expanded the antiviral capacity of the replication-defective rAd/rHBV in wtHBV-infected liver tissue. With prior priming in the periphery, transduction with rAd/rHBV attracted a substantial influx of the foreign-antigen-specific T-effector cells into the liver. Despite the fully activated T-cell response, active expression of rHBV was observed for a prolonged time, which is essential for rHBV to achieve sustained expansion. In a mouse model of HBV persistence established by infection with a recombinant adeno-associated virus carrying the wtHBV genome, rAd/rHBV-based immunotherapy elicited a foreign-antigen-specific T-cell response that triggered effective viral clearance and subsequent seroconversion to HBV. It therefore represents an efficient strategy to overcome immune tolerance, thereby eliminating chronic HBV infection. IMPORTANCE Adenovirus-delivered rHBV activated a foreign-antigen-specific T-cell response that abrogated HBV persistence in a mouse model. Our study provides further evidence of the potential of foreign-antigen-based immunotherapy for the treatment of chronic HBV infection.
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Jensen S, Steffensen MA, Jensen BAH, Schlüter D, Christensen JP, Thomsen AR. Adenovirus-Based Vaccine againstListeria monocytogenes: Extending the Concept of Invariant Chain Linkage. THE JOURNAL OF IMMUNOLOGY 2013; 191:4152-64. [DOI: 10.4049/jimmunol.1301290] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Tamminga C, Sedegah M, Maiolatesi S, Fedders C, Reyes S, Reyes A, Vasquez C, Alcorta Y, Chuang I, Spring M, Kavanaugh M, Ganeshan H, Huang J, Belmonte M, Abot E, Belmonte A, Banania J, Farooq F, Murphy J, Komisar J, Richie NO, Bennett J, Limbach K, Patterson NB, Bruder JT, Shi M, Miller E, Dutta S, Diggs C, Soisson LA, Hollingdale MR, Epstein JE, Richie TL. Human adenovirus 5-vectored Plasmodium falciparum NMRC-M3V-Ad-PfCA vaccine encoding CSP and AMA1 is safe, well-tolerated and immunogenic but does not protect against controlled human malaria infection. Hum Vaccin Immunother 2013; 9:2165-77. [PMID: 23899517 PMCID: PMC3906401 DOI: 10.4161/hv.24941] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background: In a prior study, a DNA prime / adenovirus boost vaccine (DNA/Ad) expressing P. falciparum circumsporozoite protein (CSP) and apical membrane antigen-1 (AMA1) (NMRC-M3V-D/Ad-PfCA Vaccine) induced 27% protection against controlled human malaria infection (CHMI). To investigate the contribution of DNA priming, we tested the efficacy of adenovirus vaccine alone (NMRC-M3V-Ad-PfCA ) in a Phase 1 clinical trial. Methodology/Principal Findings: The regimen was a single intramuscular injection with two non-replicating human serotype 5 adenovectors encoding CSP and AMA1, respectively. One x 1010 particle units of each construct were combined prior to administration. The regimen was safe and well-tolerated. Four weeks later, 18 study subjects received P. falciparum CHMI administered by mosquito bite. None were fully protected although one showed delayed onset of parasitemia. Antibody responses were low, with geometric mean CSP ELISA titer of 381 (range < 50–1626) and AMA1 ELISA of 4.95 µg/mL (range 0.2–38). Summed ex vivo IFN-γ ELISpot responses to overlapping peptides were robust, with geometric mean spot forming cells/million peripheral blood mononuclear cells [sfc/m] for CSP of 273 (range 38–2550) and for AMA1 of 1303 (range 435–4594). CD4+ and CD8+ T cell IFN-γ responses to CSP were positive by flow cytometry in 25% and 56% of the research subjects, respectively, and to AMA1 in 94% and 100%, respectively. Significance: In contrast to DNA/Ad, Ad alone did not protect against CHMI despite inducing broad, cell-mediated immunity, indicating that DNA priming is required for protection by the adenovirus-vectored vaccine. ClinicalTrials.gov Identifier: NCT00392015.
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Affiliation(s)
| | | | | | | | - Sharina Reyes
- Naval Medical Research Center; Silver Spring, MD USA
| | | | | | | | - Ilin Chuang
- Naval Medical Research Center; Silver Spring, MD USA
| | - Michele Spring
- Armed Forces Research Institute of Medical Sciences; Bangkok, Thailand
| | | | | | - Jun Huang
- Naval Medical Research Center; Silver Spring, MD USA
| | | | - Esteban Abot
- Naval Medical Research Center; Silver Spring, MD USA
| | | | | | - Fouzia Farooq
- Naval Medical Research Center; Silver Spring, MD USA
| | | | - Jack Komisar
- Walter Reed Army Institute of Research; Silver Spring, MD USA
| | - Nancy O Richie
- Walter Reed Army Institute of Research; Silver Spring, MD USA
| | - Jason Bennett
- Walter Reed Army Institute of Research; Silver Spring, MD USA
| | - Keith Limbach
- Naval Medical Research Center; Silver Spring, MD USA
| | | | | | - Meng Shi
- Walter Reed Army Institute of Research; Silver Spring, MD USA
| | | | - Sheetij Dutta
- Walter Reed Army Institute of Research; Silver Spring, MD USA
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Lin LCW, Flesch IEA, Tscharke DC. Immunodomination during peripheral vaccinia virus infection. PLoS Pathog 2013; 9:e1003329. [PMID: 23633956 PMCID: PMC3635974 DOI: 10.1371/journal.ppat.1003329] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 03/14/2013] [Indexed: 11/20/2022] Open
Abstract
Immunodominance is a fundamental property of CD8(+) T cell responses to viruses and vaccines. It had been observed that route of administration alters immunodominance after vaccinia virus (VACV) infection, but only a few epitopes were examined and no mechanism was provided. We re-visited this issue, examining a panel of 15 VACV epitopes and four routes, namely intradermal (i.d.), subcutaneous (s.c.), intraperitoneal (i.p.) and intravenous (i.v.) injection. We found that immunodominance is sharpened following peripheral routes of infection (i.d. and s.c.) compared with those that allow systemic virus dissemination (i.p. and i.v.). This increased immunodominance was demonstrated with native epitopes of VACV and with herpes simplex virus glycoprotein B when expressed from VACV. Responses to some subdominant epitopes were altered by as much as fourfold. Tracking of virus, examination of priming sites, and experiments restricting virus spread showed that priming of CD8(+) T cells in the spleen was necessary, but not sufficient to broaden responses. Further, we directly demonstrated that immunodomination occurs more readily when priming is mainly in lymph nodes. Finally, we were able to reduce immunodominance after i.d., but not i.p. infection, using a VACV expressing the costimulators CD80 (B7-1) and CD86 (B7-2), which is notable because VACV-based vaccines incorporating these molecules are in clinical trials. Taken together, our data indicate that resources for CD8(+) T cell priming are limiting in local draining lymph nodes, leading to greater immunodomination. Further, we provide evidence that costimulation can be a limiting factor that contributes to immunodomination. These results shed light on a possible mechanism of immunodomination and highlight the need to consider multiple epitopes across the spectrum of immunogenicities in studies aimed at understanding CD8(+) T cell immunity to viruses.
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Affiliation(s)
- Leon C. W. Lin
- Division of Biomedical Science and Biochemistry, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Inge E. A. Flesch
- Division of Biomedical Science and Biochemistry, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - David C. Tscharke
- Division of Biomedical Science and Biochemistry, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
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Bolinger B, Sims S, O’Hara G, de Lara C, Tchilian E, Firner S, Engeler D, Ludewig B, Klenerman P. A new model for CD8+ T cell memory inflation based upon a recombinant adenoviral vector. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2013; 190:4162-74. [PMID: 23509359 PMCID: PMC3672979 DOI: 10.4049/jimmunol.1202665] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
CD8(+) T cell memory inflation, first described in murine CMV (MCMV) infection, is characterized by the accumulation of high-frequency, functional Ag-specific CD8(+) T cell pools with an effector-memory phenotype and enrichment in peripheral organs. Although persistence of Ag is considered essential, the rules underpinning memory inflation are still unclear. The MCMV model is, however, complicated by the virus's low-level persistence and stochastic reactivation. We developed a new model of memory inflation based on a β-galactosidase (βgal)-recombinant adenovirus vector. After i.v. administration in C57BL/6 mice, we observed marked memory inflation in the βgal96 epitope, whereas a second epitope, βgal497, undergoes classical memory formation. The inflationary T cell responses show kinetics, distribution, phenotype, and functions similar to those seen in MCMV and are reproduced using alternative routes of administration. Memory inflation in this model is dependent on MHC class II. As in MCMV, only the inflating epitope showed immunoproteasome independence. These data define a new model for memory inflation, which is fully replication independent, internally controlled, and reproduces the key immunologic features of the CD8(+) T cell response. This model provides insight into the mechanisms responsible for memory inflation and, because it is based on a vaccine vector, also is relevant to novel T cell-inducing vaccines in humans.
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Affiliation(s)
- Beatrice Bolinger
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Stuart Sims
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Geraldine O’Hara
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Catherine de Lara
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Elma Tchilian
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Sonja Firner
- Institute of Immunobiology, Cantonal Hospital St. Gallen, CH-9007 St. Gallen, Switzerland
| | - Daniel Engeler
- Institute of Immunobiology, Cantonal Hospital St. Gallen, CH-9007 St. Gallen, Switzerland
| | - Burkhard Ludewig
- Institute of Immunobiology, Cantonal Hospital St. Gallen, CH-9007 St. Gallen, Switzerland
| | - Paul Klenerman
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
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Zong S, Kron MW, Epp C, Engler T, Bujard H, Kochanek S, Kreppel F. ΔE1 and high-capacity adenoviral vectors expressing full-length codon-optimized merozoite surface protein 1 for vaccination against Plasmodium falciparum. J Gene Med 2013; 13:670-9. [PMID: 22095915 DOI: 10.1002/jgm.1627] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The merozoite surface protein (MSP)-1 of Plasmodium falciparum, the causative agent of malaria tropica, is considered to be a promising vaccine candidate. Although its stable cloning and expression has been difficult in the past, adenoviral vectors expressing the complex protein are described in the present study. METHODS Codon-optimized msp-1 was used to construct a set of first generation (ΔE1Ad) and high-capacity adenovirus (HC-Ad) vectors, and cellular and humoral immune responses induced by the vectors were characterized in detail in mice. RESULTS Generation of stable ΔE1Ad and HC-Ad vectors expressing full-length MSP-1 and their production to high vector titers was found to be feasible. Epitope identification and analysis of frequencies of specific CD8 T-cells revealed that MSP-1 expressing HC-Ad vectors induced higher frequencies of interferon-γ + CD8 T-cells than ΔE1 vectors. Irrespective of the vector format, higher titers of MSP-1 specific antibodies were generated by Ad vectors expressing MSP-1 from a chicken β-actin (CAG) promoter comprising the cytomegalovirus early enhancer element and the chicken β-actin promoter. CONCLUSIONS The findings of the present study suggest that Ad vectors expressing full-length codon-optimized MSP-1 are promising candidate vaccines against P. falciparum infections. Use of the HC-Ad vector type for delivery, as well as the CAG promoter to control MSP-1 expression, may further increase the efficacy of this vaccine candidate.
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Affiliation(s)
- Shan Zong
- Department of Gene Therapy, University of Ulm, Ulm, Germany
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Qualitative and quantitative analysis of adenovirus type 5 vector-induced memory CD8 T cells: not as bad as their reputation. J Virol 2013; 87:6283-95. [PMID: 23536658 DOI: 10.1128/jvi.00465-13] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
It has been reported that adenovirus (Ad)-primed CD8 T cells may display a distinct and partially exhausted phenotype. Given the practical implications of this claim, we decided to analyze in detail the quality of Ad-primed CD8 T cells by directly comparing these cells to CD8 T cells induced through infection with lymphocytic choriomeningitis virus (LCMV). We found that localized immunization with intermediate doses of Ad vector induces a moderate number of functional CD8 T cells which qualitatively match those found in LCMV-infected mice. The numbers of these cells may be efficiently increased by additional adenoviral boosting, and, importantly, the generated secondary memory cells cannot be qualitatively differentiated from those induced by primary infection with replicating virus. Quantitatively, DNA priming prior to Ad vaccination led to even higher numbers of memory cells. In this case, the vaccination led to the generation of a population of memory cells characterized by relatively low CD27 expression and high CD127 and killer cell lectin-like receptor subfamily G member 1 (KLRG1) expression. These memory CD8 T cells were capable of proliferating in response to viral challenge and protecting against infection with live virus. Furthermore, viral challenge was followed by sustained expansion of the memory CD8 T-cell population, and the generated memory cells did not appear to have been driven toward exhaustive differentiation. Based on these findings, we suggest that adenovirus-based prime-boost regimens (including Ad serotype 5 [Ad5] and Ad5-like vectors) represent an effective means to induce a substantially expanded, long-lived population of high-quality transgene-specific memory CD8 T cells.
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Abstract
The emergence of a highly pathogenic avian influenza virus H5N1 has increased the potential for a new pandemic to occur. This event highlights the necessity for developing a new generation of influenza vaccines to counteract influenza disease. These vaccines must be manufactured for mass immunization of humans in a timely manner. Poultry should be included in this policy, since persistent infected flocks are the major source of avian influenza for human infections. Recombinant adenoviral vectored H5N1 vaccines are an attractive alternative to the currently licensed influenza vaccines. This class of vaccines induces a broadly protective immunity against antigenically distinct H5N1, can be manufactured rapidly, and may allow mass immunization of human and poultry. Recombinant adenoviral vectors derived from both human and non-human adenoviruses are currently being investigated and appear promising both in nonclinical and clinical studies. This review will highlight the current status of various adenoviral vectored H5N1 vaccines and will outline novel approaches for the future.
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Steffensen MA, Jensen BAH, Holst PJ, Bassi MR, Christensen JP, Thomsen AR. Pre-existing vector immunity does not prevent replication deficient adenovirus from inducing efficient CD8 T-cell memory and recall responses. PLoS One 2012; 7:e34884. [PMID: 22514686 PMCID: PMC3326056 DOI: 10.1371/journal.pone.0034884] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Accepted: 03/08/2012] [Indexed: 12/22/2022] Open
Abstract
Adenoviral vectors have shown a great potential for vaccine development due to their inherent ability to induce potent and protective CD8 T-cell responses. However, a critical issue regarding the use of these vectors is the existence of inhibitory immunity against the most commonly used Ad5 vector in a large part of the human population. We have recently developed an improved adenoviral vaccine vector system in which the vector expresses the transgene tethered to the MHC class II associated invariant chain (Ii). To further evaluate the potential of this system, the concept of pre-existing inhibitory immunity to adenoviral vectors was revisited to investigate whether the inhibition previously seen with the Ad5 vector also applied to the optimized vector system. We found this to be the case, and antibodies dominated as the mechanism underlying inhibitory vector immunity. However, presence of CD8 T cells directed against epitopes in the adenoviral vector seemed to correlate with repression of the induced response in re-vaccinated B-cell deficient mice. More importantly, despite a repressed primary effector CD8 T-cell response in Ad5-immune animals subjected to vaccination, memory T cells were generated that provided the foundation for an efficient recall response and protection upon subsequent viral challenge. Furthermore, the transgene specific response could be efficiently boosted by homologous re-immunization. Taken together, these studies indicate that adenoviral vectors can be used to induce efficient CD8 T-cell memory even in individuals with pre-existing vector immunity.
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Affiliation(s)
- Maria Abildgaard Steffensen
- Institute of International Health, Immunology, and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | | | - Peter Johannes Holst
- Institute of International Health, Immunology, and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Maria Rosaria Bassi
- Institute of International Health, Immunology, and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Jan Pravsgaard Christensen
- Institute of International Health, Immunology, and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Allan Randrup Thomsen
- Institute of International Health, Immunology, and Microbiology, University of Copenhagen, Copenhagen, Denmark
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Sutherland RM, Londrigan SL, Brady JL, Azher H, Carrington EM, Zhan Y, Vega-Ramos J, Villadangos JA, Lew AM. Shutdown of immunological priming and presentation after in vivo administration of adenovirus. Gene Ther 2011; 19:1095-100. [DOI: 10.1038/gt.2011.187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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miRNA-mediated silencing in hepatocytes can increase adaptive immune responses to adenovirus vector-delivered transgenic antigens. Mol Ther 2011; 19:1547-57. [PMID: 21556053 DOI: 10.1038/mt.2011.83] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Adenovirus vectors based on human serotype 5 can induce potent CD8 T cell responses to vector-encoded transgenic antigens. However, the individual contribution of different cell types expressing antigen upon adenovirus vector injection to the generation of antigen-directed adaptive immune responses is poorly understood so far. We investigated the role of hepatocytes, skeletal muscle, and hematopoietic cells for the induction of cellular and humoral immune responses by miRNA-mediated tissue-specific silencing of antigen expression. Using hepatitis B small surface antigen (HBsAg) as the vector-encoded transgene we show that adenovirus vector dissemination from an intramuscular (i.m.) injection site into the liver followed by HBsAg expression in hepatocytes can limit early priming of CD8 T cells and the generation of anti-HBsAg antibody responses. However, hepatocyte-specific miRNA122a-mediated silencing of HBsAg expression overcame these limitations. Early clonal expansion of K(b)/S(190-197)-specific CD8 T cells was significantly enhanced and improved polyfunctionality of CD8 T cells was found. Furthermore, miRNA122a-mediated antigen silencing induced significantly higher anti-HBsAg antibody titers allowing an up to 100-fold vector dose reduction. These results indicate that miRNA-mediated regulation of antigen expression in the context of adenovirus vectors can significantly improve transgene product-directed immune responses. This finding could be of interest for future adenovirus vaccine vector development.
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Mendes EA, Caetano BC, Penido MLO, Bruna-Romero O, Gazzinelli RT. MyD88-dependent protective immunity elicited by adenovirus 5 expressing the surface antigen 1 from Toxoplasma gondii is mediated by CD8(+) T lymphocytes. Vaccine 2011; 29:4476-84. [PMID: 21549794 DOI: 10.1016/j.vaccine.2011.04.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 04/07/2011] [Accepted: 04/15/2011] [Indexed: 10/18/2022]
Abstract
Toxoplasma gondii is an intracellular parasite widely spread around the world. The surface antigens (SAG) 1, 2 and 3 are the main proteins expressed on the surface of T. gondii tachyzoites. Replication-defective adenovirus serotype 5 (rAd5) is one of the most potent recombinant viral vectors for eliciting T cell-mediated immunity in mice and humans. Here we show that vaccination with rAd5 expressing SAG1 (AdSAG1), but neither SAG2 nor SAG3, induces protective immunity in the highly susceptible C57BL/6 mice challenged with T. gondii. Furthermore, we evaluated different immunological components involved on viral induced protective immunity. We observed that host protection elicited by AdSAG1 is highly dependent on IL-12, IFN-γ and CD8(+) T lymphocytes. Importantly, the induction of protective immunity (T cell-derived IFN-γ) was also dependent on Myeloid Differentiation Factor 88 (MyD88), and thus, likely to involve Toll-like Receptors. We conclude that protective parasite specific-CD8(+) T cells are elicited by a mechanism that involves MyD88-dependent induction of IL-12.
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Affiliation(s)
- Erica A Mendes
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
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Hangalapura BN, Oosterhoff D, Gupta T, de Groot J, Wijnands PGJTB, van Beusechem VW, den Haan J, Tüting T, van den Eertwegh AJM, Curiel DT, Scheper RJ, de Gruijl TD. Delivery route, MyD88 signaling and cross-priming events determine the anti-tumor efficacy of an adenovirus based melanoma vaccine. Vaccine 2011; 29:2313-21. [PMID: 21272606 DOI: 10.1016/j.vaccine.2011.01.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Revised: 12/30/2010] [Accepted: 01/11/2011] [Indexed: 02/06/2023]
Abstract
Adenovirus (Ad)-based vaccines are considered for cancer immunotherapy, yet, detailed knowledge on their mechanism of action and optimal delivery route for anti-tumor efficacy is lacking. Here, we compared the anti-tumor efficacy of an Ad-based melanoma vaccine after intradermal, intravenous, intranasal or intraperitoneal delivery in the B16F10 melanoma model. The intradermal route induced superior systemic anti-melanoma immunity which was MyD88 signaling-dependent. Predominant transduction of non-professional antigen-presenting cells at the dermal vaccination sites and draining lymph nodes, suggested a role for cross-presentation, which was confirmed in vitro. We conclude that the dermis provides an optimal route of entry for Ad-based vaccines for high-efficacy systemic anti-tumor immunization and that this immunization likely involves cross-priming events in the draining lymph nodes.
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Affiliation(s)
- Basav N Hangalapura
- Department of Medical Oncology, VU University Medical Center and Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
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Abstract
PURPOSE OF REVIEW Following the evidence that T-cell responses are crucial in the control of HIV-1 infection, vaccines targeting T-cell responses were tested in recent clinical trials. However, these vaccines showed a lack of efficacy. This review attempts to define the qualitative and quantitative features that are desirable for T-cell-induced responses by vaccines. We also describe strategies that could lead to achievement of this goal. RECENT FINDINGS Using the yellow fever vaccine as a benchmark of an efficient vaccine, recent studies identified factors of immune protection and more importantly innate immune pathways needed for the establishment of long-term protective adaptive immunity. SUMMARY To prevent or control HIV-1 infection, a vaccine must induce efficient and persistent antigen-specific T cells endowed with mucosal homing capacity. Such cells should have the capability to counteract HIV-1 diversity and its rapid spread from the initial site of infection. To achieve this goal, the activation of a diversified innate immune response is critical. New systems biology approaches will provide more precise correlates of immune protection that will pave the way for new approaches in T-cell-based vaccines.
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Mikkelsen M, Holst PJ, Bukh J, Thomsen AR, Christensen JP. Enhanced and Sustained CD8+T Cell Responses with an Adenoviral Vector-Based Hepatitis C Virus Vaccine Encoding NS3 Linked to the MHC Class II Chaperone Protein Invariant Chain. THE JOURNAL OF IMMUNOLOGY 2011; 186:2355-64. [DOI: 10.4049/jimmunol.1001877] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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48
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Millward JM, Holst PJ, Høgh-Petersen M, Thomsen AR, Christensen JP, Owens T. The murine gammaherpesvirus-68 chemokine-binding protein M3 inhibits experimental autoimmune encephalomyelitis. J Neuroimmunol 2010; 224:45-50. [DOI: 10.1016/j.jneuroim.2010.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Accepted: 05/04/2010] [Indexed: 12/23/2022]
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