1
|
Umer BA, Noyce RS, Kieser Q, Favis NA, Shenouda MM, Rans KJ, Middleton J, Hitt MM, Evans DH. Oncolytic vaccinia virus immunotherapy antagonizes image-guided radiotherapy in mouse mammary tumor models. PLoS One 2024; 19:e0298437. [PMID: 38498459 PMCID: PMC10947714 DOI: 10.1371/journal.pone.0298437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 01/23/2024] [Indexed: 03/20/2024] Open
Abstract
Ionizing radiation (IR) and oncolytic viruses are both used to treat cancer, and the effectiveness of both agents depends upon stimulating an immune response against the tumor. In this study we tested whether combining image guided ionizing radiation (IG-IR) with an oncolytic vaccinia virus (VACV) could yield a better therapeutic response than either treatment alone. ΔF4LΔJ2R VACV grew well on irradiated human and mouse breast cancer cells, and the virus can be combined with 4 or 8 Gy of IR to kill cells in an additive or weakly synergistic manner. To test efficacy in vivo we used immune competent mice bearing orthotopic TUBO mammary tumors. IG-IR worked well with 10 Gy producing 80% complete responses, but this was halved when the tumors were treated with VACV starting 2 days after IG-IR. VACV monotherapy was ineffective in this model. The antagonism was time dependent as waiting for 21 days after IG-IR eliminated the inhibitory effect but without yielding any further benefits over IR alone. In irradiated tumors, VACV replication was also lower, suggesting that irradiation created an environment that did not support infection as well in vivo as in vitro. A study of how four different treatment regimens affected the immune composition of the tumor microenvironment showed that treating irradiated tumors with VACV altered the immunological profiles in tumors exposed to IR or VACV alone. We detected more PD-1 and PD-L1 expression in tumors exposed to IR+VACV but adding an αPD-1 antibody to the protocol did not change the way VACV interferes with IG-IR therapy. VACV encodes many immunosuppressive gene products that may interfere with the ability of radiotherapy to induce an effective anti-tumor immune response through the release of danger-associated molecular patterns. These data suggest that infecting irradiated tumors with VACV, too soon after exposure, may interfere in the innate and linked adaptive immune responses that are triggered by radiotherapy to achieve a beneficial impact.
Collapse
Affiliation(s)
- Brittany A. Umer
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Ryan S. Noyce
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
- Li Ka Shing Institute for Virology, University of Alberta, Edmonton, Alberta, Canada
| | - Quinten Kieser
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Nicole A. Favis
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Mira M. Shenouda
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Kim J. Rans
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Jackie Middleton
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Mary M. Hitt
- Li Ka Shing Institute for Virology, University of Alberta, Edmonton, Alberta, Canada
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - David H. Evans
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
- Li Ka Shing Institute for Virology, University of Alberta, Edmonton, Alberta, Canada
| |
Collapse
|
2
|
Zhu Z, McGray AJR, Jiang W, Lu B, Kalinski P, Guo ZS. Improving cancer immunotherapy by rationally combining oncolytic virus with modulators targeting key signaling pathways. Mol Cancer 2022; 21:196. [PMID: 36221123 PMCID: PMC9554963 DOI: 10.1186/s12943-022-01664-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 09/26/2022] [Indexed: 11/10/2022] Open
Abstract
Oncolytic viruses (OVs) represent a new class of multi-modal immunotherapies for cancer, with OV-elicited antitumor immunity being key to their overall therapeutic efficacy. Currently, the clinical effectiveness of OV as monotherapy remains limited, and thus investigators have been exploring various combinations with other anti-cancer agents and demonstrated improved therapeutic efficacy. As cancer cells have evolved to alter key signaling pathways for enhanced cell proliferation, cancer progression and metastasis, these cellular and molecular changes offer promising targets for rational cancer therapy design. In this regard, key molecules in relevant signaling pathways for cancer cells or/and immune cells, such as EGFR-KRAS (e.g., KRASG12C), PI3K-AKT-mTOR, ERK-MEK, JAK-STAT, p53, PD-1-PD-L1, and epigenetic, or immune pathways (e.g., histone deacetylases, cGAS-STING) are currently under investigation and have the potential to synergize with OV to modulate the immune milieu of the tumor microenvironment (TME), thereby improving and sustaining antitumor immunity. As many small molecule modulators of these signaling pathways have been developed and have shown strong therapeutic potential, here we review key findings related to both OV-mediated immunotherapy and the utility of small molecule modulators of signaling pathways in immuno-oncology. Then, we focus on discussion of the rationales and potential strategies for combining OV with selected modulators targeting key cellular signaling pathways in cancer or/and immune cells to modulate the TME and enhance antitumor immunity and therapeutic efficacy. Finally, we provide perspectives and viewpoints on the application of novel experimental systems and technologies that can propel this exciting branch of medicine into a bright future.
Collapse
Affiliation(s)
- Zhi Zhu
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - A J Robert McGray
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Weijian Jiang
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Binfeng Lu
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Pawel Kalinski
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
| | - Zong Sheng Guo
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA. .,Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
| |
Collapse
|
3
|
Kontermann RE, Ungerechts G, Nettelbeck DM. Viro-antibody therapy: engineering oncolytic viruses for genetic delivery of diverse antibody-based biotherapeutics. MAbs 2021; 13:1982447. [PMID: 34747345 PMCID: PMC8583164 DOI: 10.1080/19420862.2021.1982447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cancer therapeutics approved for clinical application include oncolytic viruses and antibodies, which evolved by nature, but were improved by molecular engineering. Both facilitate outstanding tumor selectivity and pleiotropic activities, but also face challenges, such as tumor heterogeneity and limited tumor penetration. An innovative strategy to address these challenges combines both agents in a single, multitasking therapeutic, i.e., an oncolytic virus engineered to express therapeutic antibodies. Such viro-antibody therapies genetically deliver antibodies to tumors from amplified virus genomes, thereby complementing viral oncolysis with antibody-defined therapeutic action. Here, we review the strategies of viro-antibody therapy that have been pursued exploiting diverse virus platforms, antibody formats, and antibody-mediated modes of action. We provide a comprehensive overview of reported antibody-encoding oncolytic viruses and highlight the achievements of 13 years of viro-antibody research. It has been shown that functional therapeutic antibodies of different formats can be expressed in and released from cancer cells infected with different oncolytic viruses. Virus-encoded antibodies have implemented direct tumor cell killing, anti-angiogenesis, or activation of adaptive immune responses to kill tumor cells, tumor stroma cells or inhibitory immune cells. Importantly, numerous reports have shown therapeutic activity complementary to viral oncolysis for these modalities. Also, challenges for future research have been revealed. Established engineering technologies for both oncolytic viruses and antibodies will enable researchers to address these challenges, facilitating the development of effective viro-antibody therapeutics.
Collapse
Affiliation(s)
- Roland E Kontermann
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany.,Stuttgart Research Center Systems Biology, University of Stuttgart, Stuttgart, Germany
| | - Guy Ungerechts
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Medical Oncology, National Center for Tumor Diseases (NCT) and University Hospital Heidelberg, Heidelberg, Germany.,Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Dirk M Nettelbeck
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany
| |
Collapse
|
4
|
Santos Apolonio J, Lima de Souza Gonçalves V, Cordeiro Santos ML, Silva Luz M, Silva Souza JV, Rocha Pinheiro SL, de Souza WR, Sande Loureiro M, de Melo FF. Oncolytic virus therapy in cancer: A current review. World J Virol 2021; 10:229-255. [PMID: 34631474 PMCID: PMC8474975 DOI: 10.5501/wjv.v10.i5.229] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/19/2021] [Accepted: 08/09/2021] [Indexed: 02/06/2023] Open
Abstract
In view of the advancement in the understanding about the most diverse types of cancer and consequently a relentless search for a cure and increased survival rates of cancer patients, finding a therapy that is able to combat the mechanism of aggression of this disease is extremely important. Thus, oncolytic viruses (OVs) have demonstrated great benefits in the treatment of cancer because it mediates antitumor effects in several ways. Viruses can be used to infect cancer cells, especially over normal cells, to present tumor-associated antigens, to activate "danger signals" that generate a less immune-tolerant tumor microenvironment, and to serve transduction vehicles for expression of inflammatory and immunomodulatory cytokines. The success of therapies using OVs was initially demonstrated by the use of the genetically modified herpes virus, talimogene laherparepvec, for the treatment of melanoma. At this time, several OVs are being studied as a potential treatment for cancer in clinical trials. However, it is necessary to be aware of the safety and possible adverse effects of this therapy; after all, an effective treatment for cancer should promote regression, attack the tumor, and in the meantime induce minimal systemic repercussions. In this manuscript, we will present a current review of the mechanism of action of OVs, main clinical uses, updates, and future perspectives on this treatment.
Collapse
Affiliation(s)
- Jonathan Santos Apolonio
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| | | | - Maria Luísa Cordeiro Santos
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Marcel Silva Luz
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| | - João Victor Silva Souza
- Universidade Estadual do Sudoeste da Bahia, Campus Vitória da Conquista, Vitória da Conquista 45083-900, Bahia, Brazil
| | - Samuel Luca Rocha Pinheiro
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Wedja Rafaela de Souza
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Matheus Sande Loureiro
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| | - Fabrício Freire de Melo
- Universidade Federal da Bahia, Instituto Multidisciplinar em Saúde, Vitória da Conquista 45029-094, Bahia, Brazil
| |
Collapse
|
5
|
Wan PKT, Ryan AJ, Seymour LW. Beyond cancer cells: Targeting the tumor microenvironment with gene therapy and armed oncolytic virus. Mol Ther 2021; 29:1668-1682. [PMID: 33845199 PMCID: PMC8116634 DOI: 10.1016/j.ymthe.2021.04.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/08/2021] [Accepted: 04/06/2021] [Indexed: 01/17/2023] Open
Abstract
Cancer gene therapies are usually designed either to express wild-type copies of tumor suppressor genes or to exploit tumor-associated phenotypic changes to endow selective cytotoxicity. However, these approaches become less relevant to cancers that contain many independent mutations, and the situation is made more complex by our increased understanding of clonal evolution of tumors, meaning that different metastases and even regions of the same tumor mass have distinct mutational and phenotypic profiles. In contrast, the relatively genetically stable tumor microenvironment (TME) therefore provides an appealing therapeutic target, particularly since it plays an essential role in promoting cancer growth, immune tolerance, and acquired resistance to many therapies. Recently, a variety of different TME-targeted gene therapy and armed oncolytic strategies have been explored, with particular success observed in strategies targeting the cancer stroma, reducing tumor vasculature, and repolarizing the immunosuppressive microenvironment. Herein, we review the progress of these TME-targeting approaches and try to highlight those showing the greatest promise.
Collapse
Affiliation(s)
| | - Anderson J Ryan
- Department Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | | |
Collapse
|
6
|
Cao GD, He XB, Sun Q, Chen S, Wan K, Xu X, Feng X, Li PP, Chen B, Xiong MM. The Oncolytic Virus in Cancer Diagnosis and Treatment. Front Oncol 2020; 10:1786. [PMID: 33014876 PMCID: PMC7509414 DOI: 10.3389/fonc.2020.01786] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 08/11/2020] [Indexed: 12/28/2022] Open
Abstract
Cancer has always been an enormous threat to human health and survival. Surgery, radiotherapy, and chemotherapy could improve the survival of cancer patients, but most patients with advanced cancer usually have a poor survival or could not afford the high cost of chemotherapy. The emergence of oncolytic viruses provided a new strategy for us to alleviate or even cure malignant tumors. An oncolytic virus can be described as a genetically engineered or naturally existing virus that can selectively replicate in cancer cells and then kill them without damaging the healthy cells. There have been many kinds of oncolytic viruses, such as herpes simplex virus, adenovirus, and Coxsackievirus. Moreover, they have different clinical applications in cancer treatment. This review focused on the clinical application of oncolytic virus and predicted the prospect by analyzing the advantages and disadvantages of oncolytic virotherapy.
Collapse
Affiliation(s)
- Guo-dong Cao
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xiao-bo He
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Qiang Sun
- Jiangsu Key Laboratory of Biological Cancer, Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Sihan Chen
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ke Wan
- Department of Oncology, Anhui Medical University, Hefei, China
| | - Xin Xu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xudong Feng
- Department of Infectious Disease, Zhejiang University, Hangzhou, China
| | - Peng-ping Li
- Department of General Surgery, The First People’s Hospital of Xiaoshan District, Hangzhou, China
| | - Bo Chen
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mao-ming Xiong
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| |
Collapse
|
7
|
Kanthou C, Tozer G. Targeting the vasculature of tumours: combining VEGF pathway inhibitors with radiotherapy. Br J Radiol 2019; 92:20180405. [PMID: 30160184 PMCID: PMC6435061 DOI: 10.1259/bjr.20180405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/11/2018] [Accepted: 08/15/2018] [Indexed: 12/20/2022] Open
Abstract
The development of blood vessels by the process of angiogenesis underpins the growth and metastasis of many tumour types. Various angiogenesis inhibitors targeted against vascular endothelial growth factor A (VEGF-A) and its receptors have entered the clinic more than a decade ago. However, despite substantial clinical improvements, their overall efficacy proved to be significantly lower than many of the pre-clinical studies had predicted. Antiangiogenic agents have been combined with chemotherapy, radiotherapy and more recently immunotherapy in many pre-clinical and clinical studies in an effort to improve their efficacy. To date, only their use alongside chemotherapy is approved as part of standard treatment protocols. Most pre-clinical studies have reported improved tumour control from the addition of antiangiogenic therapies to radiotherapy and progress has been made in unravelling the complex mechanisms through which VEGF inhibition potentiates radiotherapy responses. However, the efficacy of this combination is variable, and many questions still remain as to how best to administer the two modalities to achieve optimal response and minimal toxicity. One important limiting factor is that, unlike some other targeted therapies, antiangiogenic agents are not administered to selected patient populations, since biomarkers for identifying responders have not yet been established. Here, we outline VEGF biology and review current approaches that aim to identify biomarkers for stratifying patients for treatment with angiogenesis inhibitors. We also discuss current progress in elucidating mechanisms of interaction between radiotherapy and VEGF inhibitors. Ongoing clinical trials will determine whether these combinations will ultimately improve treatment outcomes for cancer patients.
Collapse
Affiliation(s)
- Chryso Kanthou
- Department of Oncology and Metabolism, Tumour Microcirculation Group, University of Sheffield, School of Medicine, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Gillian Tozer
- Department of Oncology and Metabolism, Tumour Microcirculation Group, University of Sheffield, School of Medicine, Beech Hill Road, Sheffield, S10 2RX, UK
| |
Collapse
|
8
|
Martin NT, Bell JC. Oncolytic Virus Combination Therapy: Killing One Bird with Two Stones. Mol Ther 2018; 26:1414-1422. [PMID: 29703699 PMCID: PMC5986726 DOI: 10.1016/j.ymthe.2018.04.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 03/29/2018] [Accepted: 04/01/2018] [Indexed: 02/08/2023] Open
Abstract
Over the last 60 years an eclectic collection of microbes has been tested in a variety of pre-clinical models as anti-cancer agents. At the forefront of this research are a number of virus-based platforms that have shown exciting activity in a variety of pre-clinical models and are collectively referred to as oncolytic viruses. Our true understanding of the potential and limitations of this therapeutic modality has been substantially advanced through clinical studies carried out over the last 25 years. Perhaps not surprising, as with all other cancer therapeutics, it has become clear that current oncolytic virus therapeutics on their own are unlikely to be effective in the majority of patients. The greatest therapeutic gains will therefore be made through thoughtful combination strategies built upon an understanding of cancer biology.
Collapse
Affiliation(s)
- Nikolas Tim Martin
- Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - John Cameron Bell
- Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada.
| |
Collapse
|
9
|
Hollevoet K, Declerck PJ. State of play and clinical prospects of antibody gene transfer. J Transl Med 2017; 15:131. [PMID: 28592330 PMCID: PMC5463339 DOI: 10.1186/s12967-017-1234-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 05/31/2017] [Indexed: 12/31/2022] Open
Abstract
Recombinant monoclonal antibodies (mAbs) are one of today's most successful therapeutic classes in inflammatory diseases and oncology. A wider accessibility and implementation, however, is hampered by the high product cost and prolonged need for frequent administration. The surge in more effective mAb combination therapies further adds to the costs and risk of toxicity. To address these issues, antibody gene transfer seeks to administer to patients the mAb-encoding nucleotide sequence, rather than the mAb protein. This allows the body to produce its own medicine in a cost- and labor-effective manner, for a prolonged period of time. Expressed mAbs can be secreted systemically or locally, depending on the production site. The current review outlines the state of play and clinical prospects of antibody gene transfer, thereby highlighting recent innovations, opportunities and remaining hurdles. Different expression platforms and a multitude of administration sites have been pursued. Viral vector-mediated mAb expression thereby made the most significant strides. Therapeutic proof of concept has been demonstrated in mice and non-human primates, and intramuscular vectored mAb therapy is under clinical evaluation. However, viral vectors face limitations, particularly in terms of immunogenicity. In recent years, naked DNA has gained ground as an alternative. Attained serum mAb titers in mice, however, remain far below those obtained with viral vectors, and robust pharmacokinetic data in larger animals is limited. The broad translatability of DNA-based antibody therapy remains uncertain, despite ongoing evaluation in patients. RNA presents another emerging platform for antibody gene transfer. Early reports in mice show that mRNA may be able to rival with viral vectors in terms of generated serum mAb titers, although expression appears more short-lived. Overall, substantial progress has been made in the clinical translation of antibody gene transfer. While challenges persist, clinical prospects are amplified by ongoing innovations and the versatility of antibody gene transfer. Clinical introduction can be expedited by selecting the platform approach currently best suited for the mAb or disease of interest. Innovations in expression platform, administration and antibody technology are expected to further improve overall safety and efficacy, and unlock the vast clinical potential of antibody gene transfer.
Collapse
Affiliation(s)
- Kevin Hollevoet
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven - University of Leuven, Campus Gasthuisberg O&N 2, P.B. 820, Herestraat 49, 3000 Leuven, Belgium
| | - Paul J. Declerck
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven - University of Leuven, Campus Gasthuisberg O&N 2, P.B. 820, Herestraat 49, 3000 Leuven, Belgium
| |
Collapse
|
10
|
Abstract
Oncolytic virotherapy, a type of nanomedicine in which oncolytic viruses (OVs) are used to selectively infect and lyse cancer cells, is an emerging field in cancer therapy. Some OVs exhibit a specific tropism for cancer cells, whereas others require genetic modification to enhance their binding with and entry into cancer cells. OVs both kill tumor cells and induce the host’s immune response against tumor cells. Armed with antitumor cellular molecules, antibodies, and/or in combination with anticancer drugs, OVs can accelerate the lysis of cancer cells. Among the OVs, vaccinia virus has been the focus of preclinical and clinical research because of its many favorable properties. In this review, the basic mechanisms of action of OVs are presented, including their entry, survival, tumor lysis, and immune activation, and the latest research in vaccinia virus-based virotherapy and its status as an anticancer nanomedicine in prospective clinical trials are discussed.
Collapse
Affiliation(s)
| | - Jeong Heo
- Department of Internal Medicine, College of Medicine, Medical Research Institute, Pusan National University, Busan
| | - So Young Yoo
- BIO-IT Foundry Technology Institute; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| |
Collapse
|
11
|
Unlocking the promise of oncolytic virotherapy in glioma: combination with chemotherapy to enhance efficacy. Ther Deliv 2016; 6:453-68. [PMID: 25996044 DOI: 10.4155/tde.14.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Malignant glioma is a relentless burden to both patients and clinicians, and calls for innovation to overcome the limitations in current management. Glioma therapy using viruses has been investigated to accentuate the nature of a virus, killing a host tumor cell during its replication. As virus mediated approaches progress with promising therapeutic advantages, combination therapy with chemotherapy and oncolytic viruses has emerged as a more synergistic and possibly efficacious therapy. Here, we will review malignant glioma as well as prior experience with oncolytic viruses, chemotherapy and combination of the two, examining how the combination can be optimized in the future.
Collapse
|
12
|
Vacchelli E, Bloy N, Aranda F, Buqué A, Cremer I, Demaria S, Eggermont A, Formenti SC, Fridman WH, Fucikova J, Galon J, Spisek R, Tartour E, Zitvogel L, Kroemer G, Galluzzi L. Trial Watch: Immunotherapy plus radiation therapy for oncological indications. Oncoimmunology 2016; 5:e1214790. [PMID: 27757313 DOI: 10.1080/2162402x.2016.1214790] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 07/15/2016] [Indexed: 02/08/2023] Open
Abstract
Malignant cells succumbing to some forms of radiation therapy are particularly immunogenic and hence can initiate a therapeutically relevant adaptive immune response. This reflects the intrinsic antigenicity of malignant cells (which often synthesize a high number of potentially reactive neo-antigens) coupled with the ability of radiation therapy to boost the adjuvanticity of cell death as it stimulates the release of endogenous adjuvants from dying cells. Thus, radiation therapy has been intensively investigated for its capacity to improve the therapeutic profile of several anticancer immunotherapies, including (but not limited to) checkpoint blockers, anticancer vaccines, oncolytic viruses, Toll-like receptor (TLR) agonists, cytokines, and several small molecules with immunostimulatory effects. Here, we summarize recent preclinical and clinical advances in this field of investigation.
Collapse
Affiliation(s)
- Erika Vacchelli
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Center de Recherche des Cordeliers, Paris, France; Gustave Roussy Cancer Campus, Villejuif, France
| | - Norma Bloy
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Center de Recherche des Cordeliers, Paris, France; Gustave Roussy Cancer Campus, Villejuif, France
| | - Fernando Aranda
- Group of Immune receptors of the Innate and Adaptive System, Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS) , Barcelona, Spain
| | - Aitziber Buqué
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Center de Recherche des Cordeliers, Paris, France; Gustave Roussy Cancer Campus, Villejuif, France
| | - Isabelle Cremer
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 13, Center de Recherche des Cordeliers, Paris, France
| | - Sandra Demaria
- Department of Radiation Oncology, Weill Cornell Medical College , New York, NY, USA
| | | | | | - Wolf Hervé Fridman
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 13, Center de Recherche des Cordeliers, Paris, France
| | - Jitka Fucikova
- Sotio, Prague, Czech Republic; Department of Immunology, 2nd Faculty of Medicine and University Hospital Motol, Charles University, Prague, Czech Republic
| | - Jérôme Galon
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Laboratory of Integrative Cancer Immunology, Center de Recherche des Cordeliers, Paris, France
| | - Radek Spisek
- Sotio, Prague, Czech Republic; Department of Immunology, 2nd Faculty of Medicine and University Hospital Motol, Charles University, Prague, Czech Republic
| | - Eric Tartour
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; INSERM, U970, Paris, France; Paris-Cardiovascular Research Center (PARCC), Paris, France; Service d'Immunologie Biologique, Hôpital Européen Georges Pompidou (HEGP), AP-HP, Paris, France
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus, Villejuif, France; INSERM, U1015, CICBT1428, Villejuif, France
| | - Guido Kroemer
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Center de Recherche des Cordeliers, Paris, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France; Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Lorenzo Galluzzi
- INSERM, U1138, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Center de Recherche des Cordeliers, Paris, France; Gustave Roussy Cancer Campus, Villejuif, France; Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| |
Collapse
|
13
|
Adelfinger M, Bessler S, Frentzen A, Cecil A, Langbein-Laugwitz J, Gentschev I, Szalay AA. Preclinical Testing Oncolytic Vaccinia Virus Strain GLV-5b451 Expressing an Anti-VEGF Single-Chain Antibody for Canine Cancer Therapy. Viruses 2015. [PMID: 26205404 PMCID: PMC4517140 DOI: 10.3390/v7072811] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Virotherapy on the basis of oncolytic vaccinia virus (VACV) strains is a novel approach for canine cancer therapy. Here we describe, for the first time, the characterization and the use of VACV strain GLV-5b451 expressing the anti-vascular endothelial growth factor (VEGF) single-chain antibody (scAb) GLAF-2 as therapeutic agent against different canine cancers. Cell culture data demonstrated that GLV-5b451 efficiently infected and destroyed all four tested canine cancer cell lines including: mammary carcinoma (MTH52c), mammary adenoma (ZMTH3), prostate carcinoma (CT1258), and soft tissue sarcoma (STSA-1). The GLV-5b451 virus-mediated production of GLAF-2 antibody was observed in all four cancer cell lines. In addition, this antibody specifically recognized canine VEGF. Finally, in canine soft tissue sarcoma (CSTS) xenografted mice, a single systemic administration of GLV-5b451 was found to be safe and led to anti-tumor effects resulting in the significant reduction and substantial long-term inhibition of tumor growth. A CD31-based immuno-staining showed significantly decreased neo-angiogenesis in GLV-5b451-treated tumors compared to the controls. In summary, these findings indicate that GLV-5b451 has potential for use as a therapeutic agent in the treatment of CSTS.
Collapse
Affiliation(s)
- Marion Adelfinger
- Department of Biochemistry, Theodor-Boveri-Institute, University of Wuerzburg, D-97074 Wuerzburg, Germany.
| | - Simon Bessler
- Department of Biochemistry, Theodor-Boveri-Institute, University of Wuerzburg, D-97074 Wuerzburg, Germany.
| | - Alexa Frentzen
- Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA.
| | - Alexander Cecil
- Department of Biochemistry, Theodor-Boveri-Institute, University of Wuerzburg, D-97074 Wuerzburg, Germany.
- Department of Bioinformatics, Theodor-Boveri-Institute, University of Wuerzburg, Biocenter, D-97074 Wuerzburg, Germany.
| | - Johanna Langbein-Laugwitz
- Department of Biochemistry, Theodor-Boveri-Institute, University of Wuerzburg, D-97074 Wuerzburg, Germany.
| | - Ivaylo Gentschev
- Department of Biochemistry, Theodor-Boveri-Institute, University of Wuerzburg, D-97074 Wuerzburg, Germany.
- Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA.
| | - Aladar A Szalay
- Department of Biochemistry, Theodor-Boveri-Institute, University of Wuerzburg, D-97074 Wuerzburg, Germany.
- Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA.
- Department of Radiation Oncology, Rebecca & John Moores Comprehensive Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA.
| |
Collapse
|
14
|
Kober C, Rohn S, Weibel S, Geissinger U, Chen NG, Szalay AA. Microglia and astrocytes attenuate the replication of the oncolytic vaccinia virus LIVP 1.1.1 in murine GL261 gliomas by acting as vaccinia virus traps. J Transl Med 2015; 13:216. [PMID: 26149494 PMCID: PMC4492094 DOI: 10.1186/s12967-015-0586-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 06/25/2015] [Indexed: 01/21/2023] Open
Abstract
Background Oncolytic virotherapy is a novel approach for the treatment of glioblastoma multiforme (GBM) which is still a fatal disease. Pathologic features of GBM are characterized by the infiltration with microglia/macrophages and a strong interaction between immune- and glioma cells. The aim of this study was to determine the role of microglia and astrocytes for oncolytic vaccinia virus (VACV) therapy of GBM. Methods VACV LIVP 1.1.1 replication in C57BL/6 and Foxn1nu/nu mice with and without GL261 gliomas was analyzed. Furthermore, immunohistochemical analysis of microglia and astrocytes was investigated in non-, mock-, and LIVP 1.1.1-infected orthotopic GL261 gliomas in C57BL/6 mice. In cell culture studies virus replication and virus-mediated cell death of GL261 glioma cells was examined, as well as in BV-2 microglia and IMA2.1 astrocytes with M1 or M2 phenotypes. Co-culture experiments between BV-2 and GL261 cells and apoptosis/necrosis studies were performed. Organotypic slice cultures with implanted GL261 tumor spheres were used as additional cell culture system. Results We discovered that orthotopic GL261 gliomas upon intracranial virus delivery did not support replication of LIVP 1.1.1, similar to VACV-infected brains without gliomas. In addition, recruitment of Iba1+ microglia and GFAP+ astrocytes to orthotopically implanted GL261 glioma sites occurred already without virus injection. GL261 cells in culture showed high virus replication, while replication in BV-2 and IMA2.1 cells was barely detectable. The reduced viral replication in BV-2 cells might be due to rapid VACV-induced apoptotic cell death. In BV-2 and IMA 2.1 cells with M1 phenotype a further reduction of virus progeny and virus-mediated cell death was detected. Application of BV-2 microglial cells with M1 phenotype onto organotypic slice cultures with implanted GL261 gliomas resulted in reduced infection of BV-2 cells, whereas GL261 cells were well infected. Conclusion Our results indicate that microglia and astrocytes, dependent on their activation state, may preferentially clear viral particles by immediate uptake after delivery. By acting as VACV traps they further reduce efficient virus infection of the tumor cells. These findings demonstrate that glia cells need to be taken into account for successful GBM therapy development.
Collapse
Affiliation(s)
- Christina Kober
- Department of Biochemistry, Biocenter, University of Wuerzburg, Am Hubland, 97074, Würzburg, Germany.
| | - Susanne Rohn
- Department of Biochemistry, Biocenter, University of Wuerzburg, Am Hubland, 97074, Würzburg, Germany.
| | - Stephanie Weibel
- Department of Biochemistry, Biocenter, University of Wuerzburg, Am Hubland, 97074, Würzburg, Germany. .,Department of Anesthesia and Critical Care, University Hospital of Wuerzburg, Oberduerrbacher Str. 6, 97080, Würzburg, Germany.
| | - Ulrike Geissinger
- Genelux Corporation, San Diego Science Center, 3030 Bunker Hill Street, San Diego, CA, 92109, USA.
| | - Nanhai G Chen
- Department of Radiation Medicine and Applied Sciences, Rebecca and John Moores Comprehensive Cancer Center, University of California, San Diego, CA, 92093, USA. .,Genelux Corporation, San Diego Science Center, 3030 Bunker Hill Street, San Diego, CA, 92109, USA.
| | - Aladar A Szalay
- Department of Biochemistry, Biocenter, University of Wuerzburg, Am Hubland, 97074, Würzburg, Germany. .,Rudolf Virchow Center for Experimental Biomedicine and Institute for Molecular Infection Biology, University of Wuerzburg, 97080, Würzburg, Germany. .,Department of Radiation Medicine and Applied Sciences, Rebecca and John Moores Comprehensive Cancer Center, University of California, San Diego, CA, 92093, USA. .,Genelux Corporation, San Diego Science Center, 3030 Bunker Hill Street, San Diego, CA, 92109, USA.
| |
Collapse
|
15
|
Sampath P, Thorne SH. Novel therapeutic strategies in human malignancy: combining immunotherapy and oncolytic virotherapy. Oncolytic Virother 2015; 4:75-82. [PMID: 27512672 PMCID: PMC4918382 DOI: 10.2147/ov.s54738] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Results from randomized clinical trials over the last several years have finally begun to demonstrate the potential of oncolytic viral therapies to treat a variety of cancers. One reason for these successes has been the realization that this platform is most effective when considered primarily as an immunotherapy. Cancer immunotherapy has also made dramatic strides recently with antibodies capable of blocking immune checkpoint inhibitors and adoptive T-cell therapies, notably CAR T-cells, leading a panel of novel and highly clinically effective therapies. It is clear therefore that an understanding of how and when these complementary approaches can most effectively be combined offers the real hope of moving beyond simply treating the disease and toward starting to talk about curative therapies. In this review we discuss approaches to combining these therapeutic platforms, both through engineering the viral vectors to more beneficially interact with the host immune response during therapy, as well as through the direct combinations of different therapeutics. This primarily, but not exclusively focuses on strains of oncolytic vaccinia virus. Some of the results reported to date, primarily in pre-clinical models but also in early clinical trials, are dramatic and hold great promise for the future development of similar therapies and their translation into cancer therapies.
Collapse
Affiliation(s)
- Padma Sampath
- Department of Surgery, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steve H Thorne
- Department of Surgery, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|
16
|
Huang T, Wang H, Chen NG, Frentzen A, Minev B, Szalay AA. Expression of anti-VEGF antibody together with anti-EGFR or anti-FAP enhances tumor regression as a result of vaccinia virotherapy. MOLECULAR THERAPY-ONCOLYTICS 2015; 2:15003. [PMID: 27119102 PMCID: PMC4782963 DOI: 10.1038/mto.2015.3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 12/20/2014] [Indexed: 01/09/2023]
Abstract
The tumor microenvironment plays an important role in tumor growth and progression. Here we demonstrate that vaccinia virus-mediated, constitutively expressed intratumoral antibodies against vascular endothelial growth factor (VEGF), epidermal growth factor receptor (EGFR), and fibroblast activation protein (FAP) significantly improved tumor regression and oncolytic virotherapy through suppression of angiogenesis, cell proliferation, and stromagenesis in virus-colonized tumors. In contrast to the tumor growth inhibition by the three tumor growth-inhibiting antibodies individually, when two of the three antibodies were expressed simultaneously by single vaccinia virus strains tumor regression was further enhanced. These findings strongly indicate that interference with the two tumor growth-stimulating mechanisms did in fact result in enhanced therapeutic efficacy in tumor xenograft models and may lead to an effective therapy in patients with cancer.
Collapse
Affiliation(s)
- Ting Huang
- Department of Biochemistry, Rudolph Virchow Center for Experimental Biomedicine, Institute for Molecular Infection Biology, University of Würzburg , Würzburg, Germany
| | - Huiqiang Wang
- Genelux Corporation, San Diego Science Center , San Diego, California, USA
| | - Nanhai G Chen
- Genelux Corporation, San Diego Science Center, San Diego, California, USA; Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California, San Diego, California, USA
| | - Alexa Frentzen
- Genelux Corporation, San Diego Science Center , San Diego, California, USA
| | - Boris Minev
- Genelux Corporation, San Diego Science Center, San Diego, California, USA; Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California, San Diego, California, USA; Division of Neurosurgery, University of California, San Diego, California, USA
| | - Aladar A Szalay
- Department of Biochemistry, Rudolph Virchow Center for Experimental Biomedicine, Institute for Molecular Infection Biology, University of Würzburg, Würzburg, Germany; Genelux Corporation, San Diego Science Center, San Diego, California, USA; Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California, San Diego, California, USA
| |
Collapse
|
17
|
Abstract
Current standard treatments of cancer can prolong survival of many cancer patients but usually do not effectively cure the disease. Oncolytic virotherapy is an emerging therapeutic for the treatment of cancer that exploits replication-competent viruses to selectively infect and destroy cancerous cells while sparing normal cells and tissues. Clinical and/or preclinical studies on oncolytic viruses have revealed that the candidate viruses being tested in trials are remarkably safe and offer potential for treating many classes of currently incurable cancers. Among these candidates are vaccinia and myxoma viruses, which belong to the family Poxviridae and possess promising oncolytic features. This article describes poxviruses that are being developed for oncolytic virotherapy and summarizes the outcomes of both clinical and preclinical studies. Additionally, studies demonstrating superior efficacy when poxvirus oncolytic virotherapy is combined with conventional therapies are described.
Collapse
Affiliation(s)
- Winnie M. Chan
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, Florida 32610
| | - Grant McFadden
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, Florida 32610
| |
Collapse
|
18
|
Adelfinger M, Gentschev I, Grimm de Guibert J, Weibel S, Langbein-Laugwitz J, Härtl B, Escobar HM, Nolte I, Chen NG, Aguilar RJ, Yu YA, Zhang Q, Frentzen A, Szalay AA. Evaluation of a new recombinant oncolytic vaccinia virus strain GLV-5b451 for feline mammary carcinoma therapy. PLoS One 2014; 9:e104337. [PMID: 25093734 PMCID: PMC4122492 DOI: 10.1371/journal.pone.0104337] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 07/13/2014] [Indexed: 12/11/2022] Open
Abstract
Virotherapy on the basis of oncolytic vaccinia virus (VACV) infection is a promising approach for cancer therapy. In this study we describe the establishment of a new preclinical model of feline mammary carcinoma (FMC) using a recently established cancer cell line, DT09/06. In addition, we evaluated a recombinant vaccinia virus strain, GLV-5b451, expressing the anti-vascular endothelial growth factor (VEGF) single-chain antibody (scAb) GLAF-2 as an oncolytic agent against FMC. Cell culture data demonstrate that GLV-5b451 virus efficiently infected, replicated in and destroyed DT09/06 cancer cells. In the selected xenografts of FMC, a single systemic administration of GLV-5b451 led to significant inhibition of tumor growth in comparison to untreated tumor-bearing mice. Furthermore, tumor-specific virus infection led to overproduction of functional scAb GLAF-2, which caused drastic reduction of intratumoral VEGF levels and inhibition of angiogenesis. In summary, here we have shown, for the first time, that the vaccinia virus strains and especially GLV-5b451 have great potential for effective treatment of FMC in animal model.
Collapse
Affiliation(s)
- Marion Adelfinger
- Department of Biochemistry, University of Wuerzburg, Wuerzburg, Germany
| | - Ivaylo Gentschev
- Department of Biochemistry, University of Wuerzburg, Wuerzburg, Germany
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
| | | | - Stephanie Weibel
- Department of Biochemistry, University of Wuerzburg, Wuerzburg, Germany
| | | | - Barbara Härtl
- Department of Biochemistry, University of Wuerzburg, Wuerzburg, Germany
- Genelux GmbH, Bernried, Germany
| | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine, Hannover, Germany
- Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine University of Rostock, Rostock, Germany
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine, Hannover, Germany
| | - Nanhai G. Chen
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
- Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Richard J. Aguilar
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
| | - Yong A. Yu
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
- Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Qian Zhang
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
- Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Alexa Frentzen
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
| | - Aladar A. Szalay
- Department of Biochemistry, University of Wuerzburg, Wuerzburg, Germany
- Genelux Corporation, San Diego Science Center, San Diego, California, United States of America
- Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine University of Rostock, Rostock, Germany
- Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California San Diego, La Jolla, California, United States of America
- Rudolf Virchow Center for Experimental Biomedicine, University of Wuerzburg, Wuerzburg, Germany
- Institute for Molecular Infection Biology, University of Wuerzburg, Wuerzburg, Germany
- * E-mail:
| |
Collapse
|
19
|
Ruiz-Hernández E, Hess M, Melen GJ, Theek B, Talelli M, Shi Y, Ozbakir B, Teunissen EA, Ramírez M, Moeckel D, Kiessling F, Storm G, Scheeren HW, Hennink WE, Szalay AA, Stritzker J, Lammers T. PEG-pHPMAm-based polymeric micelles loaded with doxorubicin-prodrugs in combination antitumor therapy with oncolytic vaccinia viruses. Polym Chem 2014:1674-1681. [PMID: 24518685 DOI: 10.1039/c3py01097j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An enzymatically activatable prodrug of doxorubicin was covalently coupled, using click-chemistry, to the hydrophobic core of poly(ethylene glycol)-b-poly[N-(2-hydroxypropyl)-methacrylamide-lactate] micelles. The release and cytotoxic activity of the prodrug was evaluated in vitro in A549 non-small-cell lung cancer cells after adding β-glucuronidase, an enzyme which is present intracellularly in lysosomes and extracellularly in necrotic areas of tumor lesions. The prodrug-containing micelles alone and in combination with standard and β-glucuronidase-producing oncolytic vaccinia viruses were also evaluated in vivo, in mice bearing A549 xenograft tumors. When combined with the oncolytic viruses, the micelles completely blocked tumor growth. Moreover, a significantly better antitumor efficacy as compared to virus treatment alone was observed when β-glucuronidase virus treated tumor-bearing mice received the prodrug-containing micelles. These findings show that combining tumor-targeted drug delivery systems with oncolytic vaccinia viruses holds potential for improving anticancer therapy.
Collapse
Affiliation(s)
- Eduardo Ruiz-Hernández
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Michael Hess
- Department of Biochemistry, Biocenter, University of Würzburg, 97074 Würzburg, Germany
| | - Gustavo J Melen
- Department of Hematooncology & Stem Cell Transplantation Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Benjamin Theek
- Department of Experimental Molecular Imaging, University Clinic and Helmholtz Center for Biomedical Engineering, Aachen, Germany
| | - Marina Talelli
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.,Department of Inorganic and Bioinorganic Chemistry, Facultad de Farmacia, Universidad Complutense de Madrid, Spain
| | - Yang Shi
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Burcin Ozbakir
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Erik A Teunissen
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Manuel Ramírez
- Department of Hematooncology & Stem Cell Transplantation Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Diana Moeckel
- Department of Experimental Molecular Imaging, University Clinic and Helmholtz Center for Biomedical Engineering, Aachen, Germany
| | - Fabian Kiessling
- Department of Experimental Molecular Imaging, University Clinic and Helmholtz Center for Biomedical Engineering, Aachen, Germany
| | - Gert Storm
- Department of Controlled Drug Delivery, Targeted Therapeutics Section, University of Twente and MIRA Institute for Biomedical Engineering and Technical Medicine, Enschede, The Netherlands
| | - Hans W Scheeren
- Department of Organic Chemistry, Radboud Univ Nijmegen, Heyendaalse weg 135, 6525 AJ Nijmegen, The Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Aladar A Szalay
- Department of Biochemistry, Biocenter, University of Würzburg, 97074 Würzburg, Germany.,Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA.,Department of Radiation Oncology, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Jochen Stritzker
- Department of Biochemistry, Biocenter, University of Würzburg, 97074 Würzburg, Germany.,Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA
| | - Twan Lammers
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.,Department of Experimental Molecular Imaging, University Clinic and Helmholtz Center for Biomedical Engineering, Aachen, Germany.,Department of Controlled Drug Delivery, Targeted Therapeutics Section, University of Twente and MIRA Institute for Biomedical Engineering and Technical Medicine, Enschede, The Netherlands
| |
Collapse
|
20
|
Sampath P, Thorne SH. Arming viruses in multi-mechanistic oncolytic viral therapy: current research and future developments, with emphasis on poxviruses. Oncolytic Virother 2013; 3:1-9. [PMID: 27512659 PMCID: PMC4918358 DOI: 10.2147/ov.s36703] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The field of oncolytic virology has made great strides in recent years. However, one key finding has been that the use of viral agents that replicate selectively in tumors is usually insufficient to achieve anything beyond small and transient responses. Instead, like most cancer therapies, oncolytic viruses are most effective in combination with other therapies, which is where they have proven therapeutic effects in clinical and preclinical studies. In cases of some of the smaller RNA viruses, effects can only be achieved through combination regimens with chemotherapy, radiotherapy, or targeted conventional therapies. However, larger DNA viruses are able to express one or more transgenes; thus, therapeutic mechanisms can be built into the viral vector itself. The incorporated approaches into arming oncolytic viruses through transgene expression will be the main focus of this review, including use of immune activators, prodrug converting enzymes, anti-angiogenic factors, and targeting of the stroma. This will focus on poxviruses as model systems with large cloning capacities, which have routinely been used as transgene expression vectors in different settings, including vaccine and oncolytic viral therapy.
Collapse
Affiliation(s)
- Padma Sampath
- Department of Surgery, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steve H Thorne
- Department of Surgery, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|