1
|
Design Strategies and Precautions for Using Vaccinia Virus in Tumor Virotherapy. Vaccines (Basel) 2022; 10:vaccines10091552. [PMID: 36146629 PMCID: PMC9504998 DOI: 10.3390/vaccines10091552] [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: 07/15/2022] [Revised: 08/27/2022] [Accepted: 09/10/2022] [Indexed: 11/17/2022] Open
Abstract
Oncolytic virotherapy has emerged as a novel form of cancer immunotherapy. Oncolytic viruses (OVs) can directly infect and lyse the tumor cells, and modulate the beneficial immune microenvironment. Vaccinia virus (VACV) is a promising oncolytic vector because of its high safety, easy gene editing, and tumor intrinsic selectivity. To further improve the safety, tumor-targeting ability, and OV-induced cancer-specific immune activation, various approaches have been used to modify OVs. The recombinant oncolytic VACVs with deleting viral virulence factors and/or arming various therapeutic genes have displayed better therapeutic effects in multiple tumor models. Moreover, the combination of OVs with other cancer immunotherapeutic approaches, such as immune checkpoint inhibitors and CAR-T cells, has the potential to improve the outcome in cancer patients. This will open up new possibilities for the application of OVs in cancer treatment, especially for personalized cancer therapies.
Collapse
|
2
|
McCann K, von Witzleben A, Thomas J, Wang C, Wood O, Singh D, Boukas K, Bendjama K, Silvestre N, Nielsen FC, Thomas G, Sanchez-Elsner T, Greenbaum J, Schoenberger S, Peters B, Vijayanand P, Savelyeva N, Ottensmeier C. Targeting the tumor mutanome for personalized vaccination in a TMB low non-small cell lung cancer. J Immunother Cancer 2022; 10:e003821. [PMID: 35361728 PMCID: PMC8971766 DOI: 10.1136/jitc-2021-003821] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Cancer is characterized by an accumulation of somatic mutations, of which a significant subset can generate cancer-specific neoepitopes that are recognized by autologous T cells. Such neoepitopes are emerging as important targets for cancer immunotherapy, including personalized cancer vaccination strategies. METHODS We used whole-exome and RNA sequencing analysis to identify potential neoantigens for a patient with non-small cell lung cancer. Thereafter, we assessed the autologous T-cell reactivity to the candidate neoantigens using a long peptide approach in a cultured interferon gamma ELISpot and tracked the neoantigen-specific T-cells in the tumor by T-cell receptor (TCR) sequencing. In parallel, identified gene variants were incorporated into a Modified Vaccinia Ankara-based vaccine, which was evaluated in the human leucocyte antigen A*0201 transgenic mouse model (HHD). RESULTS Sequencing revealed a tumor with a low mutational burden: 2219 sequence variants were identified from the primary tumor, of which 23 were expressed in the transcriptome, involving 18 gene products. We could demonstrate spontaneous T-cell responses to 5/18 (28%) mutated gene variants, and further analysis of the TCR repertoire of neoantigen-specific CD4+ and CD8+ T cells revealed TCR clonotypes that were expanded in both blood and tumor tissue. Following vaccination of HHD mice, de novo T-cell responses were generated to 4/18 (22%) mutated gene variants; T cells reactive against two variants were also evident in the autologous setting. Subsequently, we determined the major histocompatibility complex restriction of the T-cell responses and used in silico prediction tools to determine the likely neoepitopes. CONCLUSIONS Our study demonstrates the feasibility of efficiently identifying tumor-specific neoantigens that can be targeted by vaccination in tumors with a low mutational burden, promising successful clinical exploitation, with trials currently underway.
Collapse
Affiliation(s)
- Katy McCann
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
| | - Adrian von Witzleben
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
- Department of Otorhinolaryngology, Head & Neck Surgery, University of Ulm, Ulm, Germany
| | - Jaya Thomas
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
| | - Chuan Wang
- Head and Neck Centre, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Oliver Wood
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
| | - Divya Singh
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
| | - Konstantinos Boukas
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
| | - Kaidre Bendjama
- Research and Development Department, Transgene, Illkirch-Graffenstaden, France
| | - Nathalie Silvestre
- Research and Development Department, Transgene, Illkirch-Graffenstaden, France
| | | | - Gareth Thomas
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Tilman Sanchez-Elsner
- Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Jason Greenbaum
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California, USA
| | - Stephen Schoenberger
- Laboratory of Cellular Immunology, La Jolla Institute for Immunology, La Jolla, California, USA
| | - Bjoern Peters
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California, USA
| | | | - Natalia Savelyeva
- Head and Neck Centre, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Christian Ottensmeier
- Cancer Research UK Southampton Experimental Cancer Medicine Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton, UK
- Head and Neck Centre, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
- La Jolla Institute for Immunology, La Jolla, California, USA
| |
Collapse
|
3
|
Del Médico Zajac MP, Molinari P, Gravisaco MJ, Maizon DO, Morón G, Gherardi MM, Calamante G. MVAΔ008 viral vector encoding the model protein OVA induces improved immune response against the heterologous antigen and equal levels of protection in a mice tumor model than the conventional MVA. Mol Immunol 2021; 139:115-122. [PMID: 34481269 DOI: 10.1016/j.molimm.2021.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 11/18/2022]
Abstract
Modified vaccinia Ankara virus (MVA) is extensively used as a vaccine vector. We have previously observed that MVAΔ008, an MVA lacking the gene that codes for interleukin-18 binding protein, significantly increases CD8+ and CD4+ T-cell responses to vaccinia virus (VACV) epitopes and recombinant HIV antigens. However, the efficacy of this vector against pathogens or tumor cells remains unclear. Thus, the aim of this study was to evaluate the cellular immune response and the protection induced by recombinant MVAs encoding the model antigen ovalbumin (OVA). We used the MO5 melanoma tumor model (OVA-expressing tumor) as an approach for evaluating the vector-induced efficacy. Our results show that MVAΔ008-OVA (optimized vector) induced higher in vivo specific cytotoxicity and ex vivo T-cell IFN-γ responses against OVA than the conventional MVA vector. Importantly, the recombinant vectors were capable of controlling MO5 tumor growth. Indeed, the administration of MVAΔ008-OVA or MVA-OVA in prophylactic and therapeutic schemes provided total protection and longer survival of mice, respectively. Overall, our results demonstrate the improved immunogenicity and the protective capacity of MVAΔ008 against a heterologous model antigen. These findings suggest that MVAΔ008 constitutes an excellent candidate for vaccine development against pathogens or cancer therapy.
Collapse
Affiliation(s)
- María Paula Del Médico Zajac
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de investigaciones Científicas y Técnicas (CONICET), Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Hurlingham, Buenos Aires, Argentina.
| | - Paula Molinari
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de investigaciones Científicas y Técnicas (CONICET), Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Hurlingham, Buenos Aires, Argentina.
| | - María José Gravisaco
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de investigaciones Científicas y Técnicas (CONICET), Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Hurlingham, Buenos Aires, Argentina.
| | - Daniel Omar Maizon
- Estación Experimental Agropecuaria Anguil "Ing. Agr. Guillermo Covas", INTA. Ruta Nac. Nro 5 km 580, Anguil (6300), La Pampa, Argentina.
| | - Gabriel Morón
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
| | - María Magdalena Gherardi
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Facultad de Medicina, Universidad de Buenos Aires-CONICET, Ciudad de Buenos Aires, 1121, Argentina.
| | - Gabriela Calamante
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de investigaciones Científicas y Técnicas (CONICET), Nicolás Repetto y De Los Reseros S/N° (B1686IGC), Hurlingham, Buenos Aires, Argentina.
| |
Collapse
|
4
|
Prow NA, Jimenez Martinez R, Hayball JD, Howley PM, Suhrbier A. Poxvirus-based vector systems and the potential for multi-valent and multi-pathogen vaccines. Expert Rev Vaccines 2018; 17:925-934. [PMID: 30300041 DOI: 10.1080/14760584.2018.1522255] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION With the increasing number of vaccines and vaccine-preventable diseases, the pressure to generate multi-valent and multi-pathogen vaccines grows. Combining individual established vaccines to generate single-shot formulations represents an established path, with significant ensuing public health and cost benefits. Poxvirus-based vector systems have the capacity for large recombinant payloads and have been widely used as platforms for the development of recombinant vaccines encoding multiple antigens, with considerable clinical trials activity and a number of registered and licensed products. AREAS COVERED Herein we discuss design strategies, production processes, safety issues, regulatory hurdles and clinical trial activities, as well as pertinent new technologies such as systems vaccinology and needle-free delivery. Literature searches used PubMed, Google Scholar and clinical trials registries, with a focus on the recombinant vaccinia-based systems, Modified Vaccinia Ankara and the recently developed Sementis Copenhagen Vector. EXPERT COMMENTARY Vaccinia-based platforms show considerable promise for the development of multi-valent and multi-pathogen vaccines, especially with recent developments in vector technologies and manufacturing processes. New methodologies for defining immune correlates and human challenge models may also facilitate bringing such vaccines to market.
Collapse
Affiliation(s)
- Natalie A Prow
- a Inflammation Biology , QIMR Berghofer Medical Research Institute , Brisbane , Australia.,b Inflammation Biology , Australian Infectious Disease Research Centre , Brisbane , Australia
| | - Rocio Jimenez Martinez
- a Inflammation Biology , QIMR Berghofer Medical Research Institute , Brisbane , Australia
| | - John D Hayball
- c Experimental Therapeutics Laboratory, School of Pharmacy & Medical Sciences , University of South Australia Cancer Research Institute , Adelaide , Australia
| | - Paul M Howley
- d Inflammation Biology , Sementis Ltd , Berwick , Australia
| | - Andreas Suhrbier
- a Inflammation Biology , QIMR Berghofer Medical Research Institute , Brisbane , Australia.,b Inflammation Biology , Australian Infectious Disease Research Centre , Brisbane , Australia
| |
Collapse
|