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Gujar S, Pol JG, Kumar V, Lizarralde-Guerrero M, Konda P, Kroemer G, Bell JC. Tutorial: design, production and testing of oncolytic viruses for cancer immunotherapy. Nat Protoc 2024:10.1038/s41596-024-00985-1. [PMID: 38769145 DOI: 10.1038/s41596-024-00985-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 02/12/2024] [Indexed: 05/22/2024]
Abstract
Oncolytic viruses (OVs) represent a novel class of cancer immunotherapy agents that preferentially infect and kill cancer cells and promote protective antitumor immunity. Furthermore, OVs can be used in combination with established or upcoming immunotherapeutic agents, especially immune checkpoint inhibitors, to efficiently target a wide range of malignancies. The development of OV-based therapy involves three major steps before clinical evaluation: design, production and preclinical testing. OVs can be designed as natural or engineered strains and subsequently selected for their ability to kill a broad spectrum of cancer cells rather than normal, healthy cells. OV selection is further influenced by multiple factors, such as the availability of a specific viral platform, cancer cell permissivity, the need for genetic engineering to render the virus non-pathogenic and/or more effective and logistical considerations around the use of OVs within the laboratory or clinical setting. Selected OVs are then produced and tested for their anticancer potential by using syngeneic, xenograft or humanized preclinical models wherein immunocompromised and immunocompetent setups are used to elucidate their direct oncolytic ability as well as indirect immunotherapeutic potential in vivo. Finally, OVs demonstrating the desired anticancer potential progress toward translation in patients with cancer. This tutorial provides guidelines for the design, production and preclinical testing of OVs, emphasizing considerations specific to OV technology that determine their clinical utility as cancer immunotherapy agents.
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Affiliation(s)
- Shashi Gujar
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
- Beatrice Hunter Cancer Research Institute, Halifax, Nova Scotia, Canada
| | - Jonathan G Pol
- INSERM, U1138, Paris, France
- Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Université Paris Cité, Paris, France
- Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, UMS AMICCa, Gustave Roussy, Villejuif, France
| | - Vishnupriyan Kumar
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada
- Beatrice Hunter Cancer Research Institute, Halifax, Nova Scotia, Canada
| | - Manuela Lizarralde-Guerrero
- INSERM, U1138, Paris, France
- Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Université Paris Cité, Paris, France
- Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, UMS AMICCa, Gustave Roussy, Villejuif, France
- Ecole Normale Supérieure de Lyon, Lyon, France
| | - Prathyusha Konda
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Harvard University, Boston, MA, USA
| | - Guido Kroemer
- INSERM, U1138, Paris, France.
- Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.
- Université Paris Cité, Paris, France.
- Sorbonne Université, Paris, France.
- Metabolomics and Cell Biology Platforms, UMS AMICCa, Gustave Roussy, Villejuif, France.
- Institut Universitaire de France, Paris, France.
- Institut du Cancer Paris CARPEM, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.
| | - John C Bell
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada.
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
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Romanishin A, Vasilev A, Khasanshin E, Evtekhov A, Pusynin E, Rubina K, Kakotkin V, Agapov M, Semina E. Oncolytic viral therapy for gliomas: Advances in the mechanisms and approaches to delivery. Virology 2024; 593:110033. [PMID: 38442508 DOI: 10.1016/j.virol.2024.110033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/04/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024]
Abstract
Glioma is a diverse category of tumors originating from glial cells encompasses various subtypes, based on the specific type of glial cells involved. The most aggressive is glioblastoma multiforme (GBM), which stands as the predominant primary malignant tumor within the central nervous system in adults. Despite the application of treatment strategy, the median survival rate for GBM patients still hovers around 15 months. Oncolytic viruses (OVs) are artificially engineered viruses designed to selectively target and induce apoptosis in cancer cells. While clinical trials have demonstrated encouraging results with intratumoral OV injections for some cancers, applying this approach to GBM presents unique challenges. Here we elaborate on current trends in oncolytic viral therapy and their delivery methods. We delve into the various methods of delivering OVs for therapy, exploring their respective advantages and disadvantages and discussing how selecting the optimal delivery method can enhance the efficacy of this innovative treatment approach.
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Affiliation(s)
- A Romanishin
- Institute of Medicine and Life Science, Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russia.
| | - A Vasilev
- Institute of Medicine and Life Science, Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russia
| | - E Khasanshin
- Kaliningrad Regional Hospital, Kaliningrad, 236016, Russia
| | - A Evtekhov
- Kaliningrad Regional Hospital, Kaliningrad, 236016, Russia
| | - E Pusynin
- Kaliningrad Regional Hospital, Kaliningrad, 236016, Russia
| | - K Rubina
- Faculty of Medicine, Lomonosov Moscow State University, Lomonosovsky Ave., 27/1, 119991, Moscow, Russia
| | - V Kakotkin
- Institute of Medicine and Life Science, Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russia
| | - M Agapov
- Institute of Medicine and Life Science, Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russia; Faculty of Medicine, Lomonosov Moscow State University, Lomonosovsky Ave., 27/1, 119991, Moscow, Russia
| | - E Semina
- Institute of Medicine and Life Science, Immanuel Kant Baltic Federal University, Kaliningrad, 236041, Russia; Faculty of Medicine, Lomonosov Moscow State University, Lomonosovsky Ave., 27/1, 119991, Moscow, Russia
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3
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Mirbahari SN, Da Silva M, Zúñiga AIM, Kooshki Zamani N, St-Laurent G, Totonchi M, Azad T. Recent progress in combination therapy of oncolytic vaccinia virus. Front Immunol 2024; 15:1272351. [PMID: 38558795 PMCID: PMC10979700 DOI: 10.3389/fimmu.2024.1272351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
In recent years, oncolytic viruses have emerged as promising agents for treating various cancers. An oncolytic virus is a non-pathogenic virus that, due to genetic manipulation, tends to replicate in and cause lysis of cancerous cells while leaving healthy cells unaffected. Among these viruses, vaccinia virus is an attractive platform for use as an oncolytic platform due to its 190 Kb genome with a high capacity for encoding therapeutic payloads. Combining oncolytic VV therapy with other conventional cancer treatments has been shown to be synergistic and more effective than monotherapies. Additionally, OVV can be used as a vector to deliver therapeutic payloads, alone or in combination with other treatments, to increase overall efficacy. Here, we present a comprehensive analysis of preclinical and clinical studies that have evaluated the efficacy of oncolytic vaccinia viruses in cancer immunotherapy. We discuss the outcomes of these studies, including tumor regression rates, overall survival benefits, and long-term responses. Moreover, we provide insights into the challenges and limitations associated with oncolytic vaccinia virus- based therapies, including immune evasion mechanisms, potential toxicities, and the development of resistance.
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Affiliation(s)
- Seyedeh Nasim Mirbahari
- Faculty of Sciences and Advanced Technologies in Biology, University of Science and Culture, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Miles Da Silva
- Department of Microbiology and Immunology, University of British Colombia, Vancouver, BC, Canada
- Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, ON, Canada
| | - Abril Ixchel Muñoz Zúñiga
- Department of Microbiology and Infectious Diseases, Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du CHUS, Sherbrooke, QC, Canada
| | - Nika Kooshki Zamani
- Department of Microbiology and Infectious Diseases, Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du CHUS, Sherbrooke, QC, Canada
| | - Gabriel St-Laurent
- Department of Microbiology and Infectious Diseases, Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du CHUS, Sherbrooke, QC, Canada
| | - Mehdi Totonchi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Taha Azad
- Department of Microbiology and Infectious Diseases, Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du CHUS, Sherbrooke, QC, Canada
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4
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Xu L, Sun H, Lemoine NR, Xuan Y, Wang P. Oncolytic vaccinia virus and cancer immunotherapy. Front Immunol 2024; 14:1324744. [PMID: 38283361 PMCID: PMC10811104 DOI: 10.3389/fimmu.2023.1324744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024] Open
Abstract
Oncolytic virotherapy (OVT) is a promising form of cancer treatment that uses genetically engineered viruses to replicate within cancer cells and trigger anti-tumor immune response. In addition to killing cancer cells, oncolytic viruses can also remodel the tumor microenvironment and stimulate a long-term anti-tumor immune response. Despite achieving positive results in cellular and organismal studies, there are currently only a few approved oncolytic viruses for clinical use. Vaccinia virus (VACV) has emerged as a potential candidate due to its ability to infect a wide range of cancer cells. This review discusses the mechanisms, benefits, and clinical trials of oncolytic VACVs. The safety and efficacy of different viral backbones are explored, as well as the effects of oncolytic VACVs on the tumor microenvironment. The potential combination of oncolytic VACVs with immunotherapy or traditional therapies is also highlighted. The review concludes by addressing prospects and challenges in the field of oncolytic VACVs, with the aim of promoting further research and application in cancer therapy.
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Affiliation(s)
- Lihua Xu
- Sino-British Research Centre for Molecular Oncology, National Centre for International Research in Cell and Gene Therapy, State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Huihui Sun
- Sino-British Research Centre for Molecular Oncology, National Centre for International Research in Cell and Gene Therapy, State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Nicholas R. Lemoine
- Sino-British Research Centre for Molecular Oncology, National Centre for International Research in Cell and Gene Therapy, State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
- Centre for Biomarkers & Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Yujing Xuan
- Sino-British Research Centre for Molecular Oncology, National Centre for International Research in Cell and Gene Therapy, State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Pengju Wang
- Sino-British Research Centre for Molecular Oncology, National Centre for International Research in Cell and Gene Therapy, State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
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Freyn AW, Atyeo C, Earl PL, Americo JL, Chuang GY, Natarajan H, Frey TR, Gall JG, Moliva JI, Hunegnaw R, Asthagiri Arunkumar G, Ogega CO, Nasir A, Santos G, Levin RH, Meni A, Jorquera PA, Bennett H, Johnson JA, Durney MA, Stewart-Jones G, Hooper JW, Colpitts TM, Alter G, Sullivan NJ, Carfi A, Moss B. An mpox virus mRNA-lipid nanoparticle vaccine confers protection against lethal orthopoxviral challenge. Sci Transl Med 2023; 15:eadg3540. [PMID: 37792954 DOI: 10.1126/scitranslmed.adg3540] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 08/18/2023] [Indexed: 10/06/2023]
Abstract
Mpox virus (MPXV) caused a global outbreak in 2022. Although smallpox vaccines were rapidly deployed to curb spread and disease among those at highest risk, breakthrough disease was noted after complete immunization. Given the threat of additional zoonotic events and the virus's evolving ability to drive human-to-human transmission, there is an urgent need for an MPXV-specific vaccine that confers protection against evolving MPXV strains and related orthopoxviruses. Here, we demonstrate that an mRNA-lipid nanoparticle vaccine encoding a set of four highly conserved MPXV surface proteins involved in virus attachment, entry, and transmission can induce MPXV-specific immunity and heterologous protection against a lethal vaccinia virus (VACV) challenge. Compared with modified vaccinia virus Ankara (MVA), which forms the basis for the current MPXV vaccine, immunization with an mRNA-based MPXV vaccine generated superior neutralizing activity against MPXV and VACV and more efficiently inhibited spread between cells. We also observed greater Fc effector TH1-biased humoral immunity to the four MPXV antigens encoded by the vaccine, as well as to the four VACV homologs. Single MPXV antigen-encoding mRNA vaccines provided partial protection against VACV challenge, whereas multivalent vaccines combining mRNAs encoding two, three, or four MPXV antigens protected against disease-related weight loss and death equal or superior to MVA vaccination. These data demonstrate that an mRNA-based MPXV vaccine confers robust protection against VACV.
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Affiliation(s)
| | | | - Patricia L Earl
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
| | - Jeffrey L Americo
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
| | | | | | | | - Jason G Gall
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
| | - Juan I Moliva
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
| | - Ruth Hunegnaw
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
| | | | | | | | | | | | | | | | | | | | | | | | - Jay W Hooper
- Virology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, 21702 MD, USA
| | | | | | - Nancy J Sullivan
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
| | | | - Bernard Moss
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, 20892 MD, USA
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Wang X, Shen Y, Wan X, Hu X, Cai WQ, Wu Z, Xin Q, Liu X, Gui J, Xin HY, Xin HW. Oncolytic virotherapy evolved into the fourth generation as tumor immunotherapy. J Transl Med 2023; 21:500. [PMID: 37491263 PMCID: PMC10369732 DOI: 10.1186/s12967-023-04360-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/16/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND Oncolytic virotherapy (OVT) is a promising anti-tumor modality that utilizes oncolytic viruses (OVs) to preferentially attack cancers rather than normal tissues. With the understanding particularly in the characteristics of viruses and tumor cells, numerous innovative OVs have been engineered to conquer cancers, such as Talimogene Laherparepvec (T-VEC) and tasadenoturev (DNX-2401). However, the therapeutic safety and efficacy must be further optimized and balanced to ensure the superior safe and efficient OVT in clinics, and reasonable combination therapy strategies are also important challenges worthy to be explored. MAIN BODY Here we provided a critical review of the development history and status of OVT, emphasizing the mechanisms of enhancing both safety and efficacy. We propose that oncolytic virotherapy has evolved into the fourth generation as tumor immunotherapy. Particularly, to arouse T cells by designing OVs expressing bi-specific T cell activator (BiTA) is a promising strategy of killing two birds with one stone. Amazing combination of therapeutic strategies of OVs and immune cells confers immense potential for managing cancers. Moreover, the attractive preclinical OVT addressed recently, and the OVT in clinical trials were systematically reviewed. CONCLUSION OVs, which are advancing into clinical trials, are being envisioned as the frontier clinical anti-tumor agents coming soon.
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Affiliation(s)
- Xianwang Wang
- Department of Biochemistry and Molecular Biology, Health Science Center, Yangtze University, Jingzhou, 434023, Hubei, China.
| | - Yihua Shen
- The Second School of Clinical Medicine, Yangtze University, Jingzhou, 434023, Hubei, China
| | - Xingxia Wan
- College of Arts and Sciences, Yangtze University, Jingzhou, 434023, Hubei, China
| | - Xiaoqing Hu
- The Second School of Clinical Medicine, Yangtze University, Jingzhou, 434023, Hubei, China
| | - Wen-Qi Cai
- Xinzhou Traditional Chinese Medicine Hospital, Zhongnan Hospital of Wuhan University (Xinzhou), Wuhan, 430000, Hubei, China
| | - Zijun Wu
- The Second School of Clinical Medicine, Yangtze University, Jingzhou, 434023, Hubei, China
| | - Qiang Xin
- School of Graduate Students, Inner Mongolia Medical University, Inner Mongolian Autonomous Region, Hohhot, 010110, China
| | - Xiaoqing Liu
- College of Arts and Sciences, Yangtze University, Jingzhou, 434023, Hubei, China
| | - Jingang Gui
- Laboratory of Tumor Immunology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Hong-Yi Xin
- The Doctoral Scientific Research Center, People's Hospital of Lianjiang, Guangdong, 524400, China.
- The Doctoral Scientific Research Center, Affiliated People's Hospital of Lianjiang, Guangdong Medical University, Guangdong, 524400, China.
| | - Hong-Wu Xin
- Department of Biochemistry and Molecular Biology, Health Science Center, Yangtze University, Jingzhou, 434023, Hubei, China.
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Extracellular Vesicles: a Trojan Horse Delivery Method for Systemic Administration of Oncolytic Viruses. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2023. [DOI: 10.1007/s40883-023-00295-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Lee N, Jeon YH, Yoo J, Shin SK, Lee S, Park MJ, Jung BJ, Hong YK, Lee DS, Oh K. Generation of novel oncolytic vaccinia virus with improved intravenous efficacy through protection against complement-mediated lysis and evasion of neutralization by vaccinia virus-specific antibodies. J Immunother Cancer 2023; 11:jitc-2022-006024. [PMID: 36717184 PMCID: PMC9887704 DOI: 10.1136/jitc-2022-006024] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Oncolytic virus immunotherapy has revolutionized cancer immunotherapy by efficiently inducing both oncolysis and systemic immune activation. Locoregional administration has been used for oncolytic virus therapy, but its applications to deep-seated cancers have been limited. Although systemic delivery of the oncolytic virus would maximize viral immunotherapy's potential, this remains a hurdle due to the rapid removal of the administered virus by the complement and innate immune system. Infected cells produce some vaccinia viruses as extracellular enveloped virions, which evade complement attack and achieve longer survival by expressing host complement regulatory proteins (CRPs) on the host-derived envelope. Here, we generated SJ-600 series oncolytic vaccinia viruses that can mimic complement-resistant extracellular enveloped virions by incorporating human CRP CD55 on the intracellular mature virion (IMV) membrane. METHODS The N-terminus of the human CD55 protein was fused to the transmembrane domains of the six type I membrane proteins of the IMV; the resulting recombinant viruses were named SJ-600 series viruses. The SJ-600 series viruses also expressed human granulocyte-macrophage colony-stimulating factor (GM-CSF) to activate dendritic cells. The viral thymidine kinase (J2R) gene was replaced by genes encoding the CD55 fusion proteins and GM-CSF. RESULTS SJ-600 series viruses expressing human CD55 on the IMV membrane showed resistance to serum virus neutralization. SJ-607 virus, which showed the highest CD55 expression and the highest resistance to serum complement-mediated lysis, exhibited superior anticancer activity in three human cancer xenograft models, compared with the control Pexa-Vec (JX-594) virus, after single-dose intravenous administration. The SJ-607 virus administration elicited neutralizing antibody formation in two immunocompetent mouse strains like the control JX-594 virus. Remarkably, we found that the SJ-607 virus evades neutralization by vaccinia virus-specific antibodies. CONCLUSION Our new oncolytic vaccinia virus platform, which expresses human CD55 protein on its membrane, prolonged viral survival by protecting against complement-mediated lysis and by evading neutralization by vaccinia virus-specific antibodies; this may provide a continuous antitumor efficacy until a complete remission has been achieved. Such a platform may expand the target cancer profile to include deep-seated cancers and widespread metastatic cancers.
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Affiliation(s)
- Namhee Lee
- Research Center, SillaJen, Inc, Seongnam, Gyeonggi-do, Republic of Korea
| | - Yun-Hui Jeon
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea,Wide River Institute of Immunology, Seoul National University, Gangwon, Republic of Korea
| | - Jiyoon Yoo
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea,Wide River Institute of Immunology, Seoul National University, Gangwon, Republic of Korea
| | - Suk-kyung Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea,Wide River Institute of Immunology, Seoul National University, Gangwon, Republic of Korea
| | - Songyi Lee
- Research Center, SillaJen, Inc, Seongnam, Gyeonggi-do, Republic of Korea
| | - Mi-Ju Park
- Research Center, SillaJen, Inc, Seongnam, Gyeonggi-do, Republic of Korea
| | - Byung-Jin Jung
- Research Center, SillaJen, Inc, Seongnam, Gyeonggi-do, Republic of Korea
| | - Yun-Kyoung Hong
- Research Center, SillaJen, Inc, Seongnam, Gyeonggi-do, Republic of Korea
| | - Dong-Sup Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea,Wide River Institute of Immunology, Seoul National University, Gangwon, Republic of Korea
| | - Keunhee Oh
- Research Center, SillaJen, Inc, Seongnam, Gyeonggi-do, Republic of Korea
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Nguyen DH, Herrmann T, Härtl B, Draganov D, Minev I, Neuharth F, Gomez A, Alamillo A, Schneider LE, Kleinholz D, Minev B, Santidrian AF. Development of Allogeneic Stem Cell-Based Platform for Delivery and Potentiation of Oncolytic Virotherapy. Cancers (Basel) 2022; 14:cancers14246136. [PMID: 36551636 PMCID: PMC9777144 DOI: 10.3390/cancers14246136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/30/2022] [Accepted: 12/05/2022] [Indexed: 12/15/2022] Open
Abstract
We describe the repurposing and optimization of the TK-positive (thymidine kinase) vaccinia virus strain ACAM1000/ACAM2000™ as an oncolytic virus. This virus strain has been widely used as a smallpox vaccine and was also used safely in our recent clinical trial in patients with advanced solid tumors and Acute Myeloid Leukemia (AML). The vaccinia virus was amplified in CV1 cells and named CAL1. CAL1 induced remarkable oncolysis in various human and mouse cancer cells and preferentially amplified in cancer cells, supporting the use of this strain as an oncolytic virus. However, the therapeutic potential of CAL1, as demonstrated with other oncolytic viruses, is severely restricted by the patients' immune system. Thus, to develop a clinically relevant oncolytic virotherapy agent, we generated a new off-the-shelf therapeutic called Supernova1 (SNV1) by loading CAL1 virus into allogeneic adipose-derived mesenchymal stem cells (AD-MSC). Culturing the CAL1-infected stem cells allows the expression of virally encoded proteins and viral amplification prior to cryopreservation. We found that the CAL1 virus loaded into AD-MSC was resistant to humoral inactivation. Importantly, the virus-loaded stem cells (SNV1) released larger number of infectious viral particles and virally encoded proteins, leading to augmented therapeutic efficacy in vitro and in animal tumor models.
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Affiliation(s)
- Duong Hoang Nguyen
- Calidi Biotherapeutics, San Diego, CA 92037, USA
- Correspondence: (D.H.N.); (A.F.S.); Tel.: +1-858-794-9600 (A.F.S.)
| | | | | | | | | | | | | | | | | | | | - Boris Minev
- Calidi Biotherapeutics, San Diego, CA 92037, USA
- Department of Radiation Medicine and Applied Sciences, University of California, San Diego, CA 92093, USA
| | - Antonio F. Santidrian
- Calidi Biotherapeutics, San Diego, CA 92037, USA
- Correspondence: (D.H.N.); (A.F.S.); Tel.: +1-858-794-9600 (A.F.S.)
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10
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Samoranos KT, Krisiewicz AL, Karpinecz BC, Glover PA, Gale TV, Chehadeh C, Ashshan S, Koya R, Chung EY, Lim HL. pH Sensitive Erythrocyte-Derived Membrane for Acute Systemic Retention and Increased Infectivity of Coated Oncolytic Vaccinia Virus. Pharmaceutics 2022; 14:pharmaceutics14091810. [PMID: 36145558 PMCID: PMC9504069 DOI: 10.3390/pharmaceutics14091810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 12/01/2022] Open
Abstract
Oncolytic viruses have emerged as a promising modality in cancer treatment given their high synergy with highly efficient immune checkpoint inhibitors. However, their potency is limited by their rapid in vivo clearance. To overcome this, we coated oncolytic vaccinia viruses (oVV) with erythrocyte-derived membranes (EDMs), hypothesizing that they would not only remain in systemic circulation for longer as erythrocytes would when administered intravenously, but also respond to environmental pH cues due to their membrane surface sialic acid residues. For this, we developed a model based on DLVO theory to show that the acidic moieties on the surface of EDM confers it the ability to respond to pH-based stimuli. We corroborate our modeling results through in vitro cell culture models and show that EDM-coated oVV infects cancer cells faster under acidic conditions akin to the tumor microenvironment. When EDM-coated oVVs were intravenously injected into wild-type mice, they exhibited prolonged circulation at higher concentrations when compared to the unprocessed oVV. Furthermore, when EDM-coated oVV was directly injected into xenografted tumors, we observed that they were suppressed earlier than the tumors that received regular oVV, suggesting that the EDM coating does not hinder oVV infectivity. Overall, we found that EDM was able to serve as a multi-functional encapsulant that allowed the payload to remain in circulation at higher concentrations when administered intravenously while simultaneously exhibiting pH-responsive properties.
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Affiliation(s)
| | | | | | | | | | | | | | - Richard Koya
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Eddie Y. Chung
- Coastar Therapeutics Inc., San Diego, CA 92121, USA
- Correspondence: (E.Y.C.); (H.L.L.)
| | - Han L. Lim
- Coastar Therapeutics Inc., San Diego, CA 92121, USA
- Correspondence: (E.Y.C.); (H.L.L.)
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11
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Mealiea D, McCart JA. Cutting both ways: the innate immune response to oncolytic virotherapy. Cancer Gene Ther 2022; 29:629-646. [PMID: 34453122 DOI: 10.1038/s41417-021-00351-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/09/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023]
Abstract
Oncolytic viruses (OVs), above and beyond infecting and lysing malignant cells, interact with the immune system in complex ways that have important therapeutic significance. While investigation into these interactions is still in its early stages, important insights have been made over the past two decades that will help improve the clinical efficacy of OV-based management strategies in cancer care moving forward. The inherent immunosuppression that defines the tumor microenvironment can be modified by OV infection, and the subsequent recruitment and activation of innate immune cells, in particular, is central to this. Indeed, neutrophils, macrophages, natural killer cells, and dendritic cells, as well as other populations such as myeloid-derived suppressor cells, are key to the immune escape that allows tumors to survive, but their natural response to infection can be exploited by virotherapy. While stimulation of innate immune cells by OVs can initiate antitumor responses, related antiviral activity can limit virus spread and direct cytopathogenic effects. In this review, we highlight how each innate immune cell population influences this balance of antitumor and antiviral forces during virotherapy, some of the important molecular pathways that have been identified, and specific therapeutic targets that have emerged through this work. We discuss the importance of OV-based combination therapies in optimizing antiviral and antitumor innate immune responses stimulated by virotherapy toward tumor eradication, and how these processes vary depending on the tumor and OV in question. Rather than concentrating on a particular OV species in the review, we present the range of effects that have been documented across OV types to emphasize the context-specific nature of these interactions and how this is important in the design of future OV-based treatment approaches.
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Affiliation(s)
- David Mealiea
- Department of Surgery, University of Toronto, Toronto, ON, Canada. .,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.
| | - J Andrea McCart
- Department of Surgery, University of Toronto, Toronto, ON, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
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12
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Staedtke V, Gray-Bethke T, Liu G, Liapi E, Riggins GJ, Bai RY. Neutrophil depletion enhanced the Clostridium novyi-NT therapy in mouse and rabbit tumor models. Neurooncol Adv 2022; 4:vdab184. [PMID: 35118381 PMCID: PMC8807082 DOI: 10.1093/noajnl/vdab184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Hypoxia is a prominent feature of solid tumors and can function as fertile environment for oncolytic anaerobic bacteria such as Clostridium novyi-NT (C. novyi-NT) where it can induce tumor destruction in mice and patients. However, two major obstacles have limited its use, namely the host inflammatory response and the incomplete clearance of normoxic tumor areas. METHODS In this study, we first used a subcutaneous tumor model of a glioblastoma (GBM) cell line in immunocompetent mice to investigate the local distribution of tumor hypoxia, kinetics of C. novyi-NT germination and spread, and the local host immune response. We subsequently applied the acquired knowledge to develop a C. novyi-NT therapy in an orthotopic rabbit brain tumor model. RESULTS We found that local accumulation of granular leukocytes, mainly neutrophils, could impede the spread of bacteria through the tumor and prevent complete oncolysis. Depletion of neutrophils via anti-Ly6G antibody or bone marrow suppression using hydroxyurea significantly improved tumor clearance. We then applied this approach to rabbits implanted with an aggressive intracranial brain tumor and achieved long-term survival in majority of the animals without apparent toxicity. CONCLUSION These results indicated that depleting neutrophils can greatly enhance the safety and efficacy of C. novyi-NT cancer therapy for brain tumors.
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Affiliation(s)
- Verena Staedtke
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Tyler Gray-Bethke
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Guanshu Liu
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Eleni Liapi
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Gregory J Riggins
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ren-Yuan Bai
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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13
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Bhatt DK, Wekema L, Carvalho Barros LR, Chammas R, Daemen T. A systematic analysis on the clinical safety and efficacy of onco-virotherapy. MOLECULAR THERAPY-ONCOLYTICS 2021; 23:239-253. [PMID: 34761104 PMCID: PMC8551473 DOI: 10.1016/j.omto.2021.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/13/2021] [Accepted: 09/29/2021] [Indexed: 12/12/2022]
Abstract
Several onco-virotherapy candidates have been developed and clinically evaluated for the treatment of cancer, and several are approved for clinical use. In this systematic review we explored the clinical impact of onco-virotherapy compared to other cancer therapies by analyzing factors such as trial design, patient background, therapy design, delivery strategies, and study outcomes. For this purpose, we retrieved clinical studies from three platforms: ClinicalTrials.gov, PubMed, and EMBASE. We found that most studies were performed in patients with advanced and metastatic tumors, using a broad range of genetically engineered vectors and mainly administered intratumorally. Therapeutic safety was the most frequently assessed outcome, while relatively few studies focused on immunological antitumor responses. Moreover, only 59 out of 896 clinical studies were randomized controlled trials reporting comparative data. This systemic review thus reveals the need of more, and better controlled, clinical studies to increase our understanding on the application of onco-virotherapy either as a single treatment or in combination with other cancer immunotherapies.
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Affiliation(s)
- Darshak K Bhatt
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands.,Center for Translational Research in Oncology, Instituto do Câncer do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, CEP 01246-000, Brazil
| | - Lieske Wekema
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Luciana Rodrigues Carvalho Barros
- Center for Translational Research in Oncology, Instituto do Câncer do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, CEP 01246-000, Brazil
| | - Roger Chammas
- Center for Translational Research in Oncology, Instituto do Câncer do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, CEP 01246-000, Brazil
| | - Toos Daemen
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, the Netherlands
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14
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The Use of Oncolytic Viruses in the Treatment of Multiple Myeloma. Cancers (Basel) 2021; 13:cancers13225687. [PMID: 34830842 PMCID: PMC8616105 DOI: 10.3390/cancers13225687] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/27/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Multiple myeloma is a type of blood cancer caused by the uncontrolled growth of antibody producing B cells (known as plasma cells) that reside in the bone marrow. It is classed as a largely incurable cancer as whilst patients respond well to initial chemotherapy treatments, unfortunately after periods of disease remission, relapse usually occurs with the emergence of chemotherapy resistance. Therefore, there is a need for new approaches that not only reduce tumour load but also prevent tumour relapse. Oncolytic viruses (OVs) (tumour killing viruses) are being explored as a therapy for various cancers, including multiple myeloma. This review discusses the use of OVs in myeloma in preclinical model systems and early phase clinical trials, and discusses some of the hurdles involved in the translation to myeloma patients. Abstract Multiple myeloma accounts for 1% of all new cancers worldwide. It is the second most common haematological malignancy and has a low five-year survival rate (53.2%). Myeloma remains an incurable disease and is caused by the growth of malignant plasma cells in the bone marrow. Current anti-myeloma therapies (conventional chemotherapies, immunomodulatory drugs i.e., thalidomide and its’ analogues, proteasome inhibitors, monoclonal antibodies, and radiotherapy) initially substantially debulk tumour burden, but after a period of remission ‘plateau phase’ disease invariably relapses due to tumour recrudescence from foci of minimal residual disease (MRD) and accumulating drug resistance. Therefore, there is a compelling clinical need for the development of novel treatment regimens to target MRD and effectively eliminate all remaining tumour cells. This review will discuss the potential use of oncolytic virus (OV) therapies in the treatment of myeloma. Specifically, it will focus on preclinical studies using DNA viruses (adenovirus (Ad), vaccinia virus (VV), myxoma virus (MYXV), and herpes simplex virus (HSV)), RNA viruses (reovirus (reo), coxsackie virus, measles virus (MV) and bovine viral diarrhoea virus (BVDV), and vesicular stomatitis virus (VSV)), and on four types of viruses (VV, reo, MV-NIS and VSV-IFNβ-NIS) that have been assessed clinically in a small number of myeloma patients.
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15
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Baatartsogt N, Kashiwakura Y, Hayakawa M, Kamoshita N, Hiramoto T, Mizukami H, Ohmori T. A sensitive and reproducible cell-based assay via secNanoLuc to detect neutralizing antibody against adeno-associated virus vector capsid. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2021; 22:162-171. [PMID: 34485602 PMCID: PMC8397836 DOI: 10.1016/j.omtm.2021.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/04/2021] [Indexed: 12/19/2022]
Abstract
Most gene therapy clinical trials that systemically administered adeno-associated virus (AAV) vector enrolled only patients without anti-AAV-neutralizing antibodies. However, laboratory tests to measure neutralizing antibodies varied among clinical trials and have not been standardized. In this study, we attempted to improve the sensitivity and reproducibility of a cell-based assay to detect neutralizing antibodies and to determine the detection threshold to predict treatment efficacy. Application of the secreted type of NanoLuc and AAV receptor-expressing cells reduced the multiplicity of infection (MOI) for AAV transduction and improved the sensitivity to detect neutralizing antibodies with a low coefficient of variation, whereas the detection threshold could not be improved by the reduction of MOI to <100. After human immunoglobulin administration into mice at various doses, treatment with high-dose AAV8 vector enabled evasion of the inhibitory effect of neutralizing antibodies. Conversely, gene transduction was slightly influenced in the mice treated with low-dose AAV8 vector, even when neutralizing antibodies were determined to be negative in the assay. In conclusion, we developed a reliable and sensitive cell-based assay to measure neutralizing antibodies against AAV and found that the appropriate MOI to detect marginal neutralizing antibodies was 100. Other factors, including noninhibitory antibodies, marginally influence in vivo transduction at low vector doses.
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Affiliation(s)
- Nemekhbayar Baatartsogt
- Department of Biochemistry, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Yuji Kashiwakura
- Department of Biochemistry, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Morisada Hayakawa
- Department of Biochemistry, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Nobuhiko Kamoshita
- Department of Biochemistry, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Takafumi Hiramoto
- Department of Biochemistry, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Hiroaki Mizukami
- Division of Genetic Therapeutics, Center for Molecular Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Tsukasa Ohmori
- Department of Biochemistry, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
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16
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Kemler I, Karamched B, Neuhauser C, Dingli D. Quantitative imaging and dynamics of tumor therapy with viruses. FEBS J 2021; 288:6273-6285. [PMID: 34213827 DOI: 10.1111/febs.16102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/07/2021] [Accepted: 07/01/2021] [Indexed: 12/27/2022]
Abstract
Cancer therapy remains challenging due to the myriad presentations of the disease and the vast genetic diversity of tumors that continuously evolve and often become resistant to therapy. Viruses can be engineered to specifically infect, replicate, and kill tumor cells (tumor virotherapy). Moreover, the viruses can be "armed" with therapeutic genes to enhance their oncolytic effect. Using viruses to treat cancer is exciting and novel and in principle can be used for a broad variety of tumors. However, the approach is distinctly different from other cancer therapies since success depends on establishment of an infection within the tumor and ongoing propagation of the oncolytic virus within the tumor itself. Therefore, the target itself amplifies the therapy. This introduces complex dynamics especially when the immune system is taken into consideration as well as the physical and other biological barriers to virus growth. Understanding these dynamics not only requires mathematical and computational models but also approaches for the noninvasive monitoring of the virus and tumor populations. In this perspective, we discuss strategies and current results to achieve this important goal of understanding these dynamics in pursuit of optimization of oncolytic virotherapy.
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Affiliation(s)
- Iris Kemler
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Bhargav Karamched
- Department of Mathematics and Institute of Molecular Biophysics, Florida State University, Tallahassee, FL, USA
| | | | - David Dingli
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.,Division of Hematology and Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
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17
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Hill C, Grundy M, Bau L, Wallington S, Balkaran J, Ramos V, Fisher K, Seymour L, Coussios C, Carlisle R. Polymer stealthing and mucin-1 retargeting for enhanced pharmacokinetics of an oncolytic vaccinia virus. Mol Ther Oncolytics 2021; 21:47-61. [PMID: 33869742 PMCID: PMC8026752 DOI: 10.1016/j.omto.2021.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 03/14/2021] [Indexed: 11/20/2022] Open
Abstract
Vaccinia virus (VV) is a powerful tool for cancer treatment with the potential for tumor tropism, efficient cell-to-cell spread, rapid replication in cancer cells, and stimulation of anti-tumor immunity. It has a well-defined safety profile and is being assessed in late-stage clinical trials. However, VV clinical utility is limited by rapid bloodstream neutralization and poor penetration into tumors. These factors have often restricted its route of delivery to intratumoral or intrahepatic artery injection and may impede repeat dosing. Chemical stealthing improves the pharmacokinetics of non-enveloped viruses, but it has not yet been applied to enveloped viruses such as VV. In the present study, amphiphilic polymer was used to coat VV, leading to reduced binding of a neutralizing anti-VV antibody (81.8% of polymer-coated VV [PCVV] staining positive versus 97.1% of VV [p = 0.0038]). Attachment of anti-mucin-1 (aMUC1) targeting antibody, to give aMUC1-PCVV, enabled binding of the construct to MUC1. In high MUC1 expressing CAPAN-2 cells, infection with PCVV was reduced compared to VV, while infection was restored with aMUC1-PCVV. Pharmacokinetics of aMUC1-PCVV, PCVV, and VV were evaluated. After intravenous (i.v.) injection of 1 × 108 viral genomes (VG) or 5 × 108 VG, circulation time for PCVV and aMUC1-PCVV was increased, with ~5-fold higher circulating dose at 5 min versus VV.
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Affiliation(s)
- Claudia Hill
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Megan Grundy
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Luca Bau
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Sheena Wallington
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Joel Balkaran
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Victor Ramos
- Grup d’Enginyeria de Materials, Institut Quimic de Sarria, Universitat Ramon Llull, Barcelona, Spain
| | - Kerry Fisher
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - Len Seymour
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - Constantin Coussios
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Robert Carlisle
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
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18
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Zhang Y, Li Y, Chen K, Qian L, Wang P. Oncolytic virotherapy reverses the immunosuppressive tumor microenvironment and its potential in combination with immunotherapy. Cancer Cell Int 2021; 21:262. [PMID: 33985527 PMCID: PMC8120729 DOI: 10.1186/s12935-021-01972-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023] Open
Abstract
It has been intensively reported that the immunosuppressive tumor microenvironment (TME) results in tumor resistance to immunotherapy, especially immune checkpoint blockade and chimeric T cell antigen therapy. As an emerging therapeutic agent, oncolytic viruses (OVs) can specifically kill malignant cells and modify immune and non-immune TME components through their intrinsic properties or genetically incorporated with TME regulators. Strategies of manipulating OVs against the immunosuppressive TME include serving as a cancer vaccine, expressing proinflammatory factors and immune checkpoint inhibitors, and regulating nonimmune stromal constituents. In this review, we summarized the mechanisms and applications of OVs against the immunosuppressive TME, and strategies of OVs in combination with immunotherapy. We also introduced future directions to achieve efficient clinical translation including optimization of preclinical models that simulate the human TME and achieving systemic delivery of OVs.
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Affiliation(s)
- Yalei Zhang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ye Li
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China
| | - Kun Chen
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ling Qian
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Peng Wang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
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19
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Yang C, Hua N, Xie S, Wu Y, Zhu L, Wang S, Tong X. Oncolytic viruses as a promising therapeutic strategy for hematological malignancies. Biomed Pharmacother 2021; 139:111573. [PMID: 33894623 DOI: 10.1016/j.biopha.2021.111573] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/23/2021] [Accepted: 03/31/2021] [Indexed: 12/16/2022] Open
Abstract
The incidence of hematological malignancies such as multiple myeloma, leukemia, and lymphoma has increased over time. Although bone marrow transplantation, immunotherapy and chemotherapy have led to significant improvements in efficacy, poor prognosis in elderly patients, recurrence and high mortality among hematological malignancies remain major challenges, and innovative therapeutic strategies should be explored. Besides directly lyse tumor cells, oncolytic viruses can activate immune responses or be engineered to express therapeutic factors to increase antitumor efficacy, and have gradually been recognized as an appealing approach for fighting cancers. An increasing number of studies have applied oncolytic viruses in hematological malignancies and made progress. In particular, strategies combining immunotherapy and oncolytic virotherapy are emerging. Various phase I clinical trials of oncolytic reovirus with lenalidomide or programmed death 1(PD-1) immune checkpoint inhibitors in multiple myeloma are ongoing. Moreover, preclinical studies of combinations with chimeric antigen receptor T (CAR-T) cells are underway. Thus, oncolytic virotherapy is expected to be a promising approach to cure hematological malignancies. This review summarizes progress in oncolytic virus research in hematological malignancies. After briefly reviewing the development and oncolytic mechanism of oncolytic viruses, we focus on delivery methods of oncolytic viruses, especially systemic delivery that is suitable for hematological tumors. We then discuss the main types of oncolytic viruses applied for hematological malignancies and related clinical trials. In addition, we present several ways to improve the antitumor efficacy of oncolytic viruses. Finally, we discuss current challenges and provide suggestions for future studies.
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Affiliation(s)
- Chen Yang
- Molecular diagnosis laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China; Department of Clinical Medicine, Qingdao University, Qingdao, PR China
| | - Nanni Hua
- Molecular diagnosis laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China; The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310000, PR China
| | - Shufang Xie
- Molecular diagnosis laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China; The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310000, PR China
| | - Yi Wu
- Phase I clinical research center, Zhejiang Provincial People's Hospital,Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China
| | - Lifeng Zhu
- Molecular diagnosis laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China
| | - Shibing Wang
- Molecular diagnosis laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China; The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital ,Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, PR China.
| | - Xiangmin Tong
- Molecular diagnosis laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, PR China; The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital ,Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, PR China.
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20
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Malik A, Thanekar U, Amarachintha S, Mourya R, Nalluri S, Bondoc A, Shivakumar P. "Complimenting the Complement": Mechanistic Insights and Opportunities for Therapeutics in Hepatocellular Carcinoma. Front Oncol 2021; 10:627701. [PMID: 33718121 PMCID: PMC7943925 DOI: 10.3389/fonc.2020.627701] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/22/2020] [Indexed: 12/15/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary malignancy of the liver and a leading cause of death in the US and worldwide. HCC remains a global health problem and is highly aggressive with unfavorable prognosis. Even with surgical interventions and newer medical treatment regimens, patients with HCC have poor survival rates. These limited therapeutic strategies and mechanistic understandings of HCC immunopathogenesis urgently warrant non-palliative treatment measures. Irrespective of the multitude etiologies, the liver microenvironment in HCC is intricately associated with chronic necroinflammation, progressive fibrosis, and cirrhosis as precedent events along with dysregulated innate and adaptive immune responses. Central to these immunological networks is the complement cascade (CC), a fundamental defense system inherent to the liver which tightly regulates humoral and cellular responses to noxious stimuli. Importantly, the liver is the primary source for biosynthesis of >80% of complement components and expresses a variety of complement receptors. Recent studies implicate the complement system in liver inflammation, abnormal regenerative responses, fibrosis, carcinogenesis, and development of HCC. Although complement activation differentially promotes immunosuppressive, stimulant, and angiogenic microenvironments conducive to HCC development, it remains under-investigated. Here, we review derangement of specific complement proteins in HCC in the context of altered complement regulatory factors, immune-activating components, and their implications in disease pathogenesis. We also summarize how complement molecules regulate cancer stem cells (CSCs), interact with complement-coagulation cascades, and provide therapeutic opportunities for targeted intervention in HCC.
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Affiliation(s)
- Astha Malik
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Unmesha Thanekar
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Surya Amarachintha
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Reena Mourya
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Shreya Nalluri
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Alexander Bondoc
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Pranavkumar Shivakumar
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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21
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Jin KT, Du WL, Liu YY, Lan HR, Si JX, Mou XZ. Oncolytic Virotherapy in Solid Tumors: The Challenges and Achievements. Cancers (Basel) 2021; 13:cancers13040588. [PMID: 33546172 PMCID: PMC7913179 DOI: 10.3390/cancers13040588] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/26/2021] [Accepted: 01/30/2021] [Indexed: 12/14/2022] Open
Abstract
Oncolytic virotherapy (OVT) is a promising approach in cancer immunotherapy. Oncolytic viruses (OVs) could be applied in cancer immunotherapy without in-depth knowledge of tumor antigens. The capability of genetic modification makes OVs exciting therapeutic tools with a high potential for manipulation. Improving efficacy, employing immunostimulatory elements, changing the immunosuppressive tumor microenvironment (TME) to inflammatory TME, optimizing their delivery system, and increasing the safety are the main areas of OVs manipulations. Recently, the reciprocal interaction of OVs and TME has become a hot topic for investigators to enhance the efficacy of OVT with less off-target adverse events. Current investigations suggest that the main application of OVT is to provoke the antitumor immune response in the TME, which synergize the effects of other immunotherapies such as immune-checkpoint blockers and adoptive cell therapy. In this review, we focused on the effects of OVs on the TME and antitumor immune responses. Furthermore, OVT challenges, including its moderate efficiency, safety concerns, and delivery strategies, along with recent achievements to overcome challenges, are thoroughly discussed.
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Affiliation(s)
- Ke-Tao Jin
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China; (K.-T.J.); (Y.-Y.L.)
| | - Wen-Lin Du
- Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, China;
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Yu-Yao Liu
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China; (K.-T.J.); (Y.-Y.L.)
| | - Huan-Rong Lan
- Department of Breast and Thyroid Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China;
| | - Jing-Xing Si
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, China
- Correspondence: (J.-X.S.); (X.-Z.M.); Tel./Fax: +86-571-85893781 (J.-X.S.); +86-571-85893985 (X.-Z.M.)
| | - Xiao-Zhou Mou
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, China
- Correspondence: (J.-X.S.); (X.-Z.M.); Tel./Fax: +86-571-85893781 (J.-X.S.); +86-571-85893985 (X.-Z.M.)
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22
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Béguin J, Gantzer M, Farine I, Foloppe J, Klonjkowski B, Maurey C, Quéméneur É, Erbs P. Safety, biodistribution and viral shedding of oncolytic vaccinia virus TG6002 administered intravenously in healthy beagle dogs. Sci Rep 2021; 11:2209. [PMID: 33500518 PMCID: PMC7838210 DOI: 10.1038/s41598-021-81831-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/11/2021] [Indexed: 01/30/2023] Open
Abstract
Oncolytic virotherapy is an emerging strategy that uses replication-competent viruses to kill tumor cells. We have reported the oncolytic effects of TG6002, a recombinant oncolytic vaccinia virus, in preclinical human xenograft models and canine tumor explants. To assess the safety, biodistribution and shedding of TG6002 administered by the intravenous route, we conducted a study in immune-competent healthy dogs. Three dogs each received a single intravenous injection of TG6002 at 105 PFU/kg, 106 PFU/kg or 107 PFU/kg, and one dog received three intravenous injections at 107 PFU/kg. The injections were well tolerated without any clinical, hematological or biochemical adverse events. Viral genomes were only detected in blood at the earliest sampling time point of one-hour post-injection at 107 PFU/kg. Post mortem analyses at day 35 allowed detection of viral DNA in the spleen of the dog which received three injections at 107 PFU/kg. Viral genomes were not detected in the urine, saliva or feces of any dogs. Seven days after the injections, a dose-dependent antibody mediated immune response was identified. In conclusion, intravenous administration of TG6002 shows a good safety profile, supporting the initiation of clinical trials in canine cancer patients as well as further development as a human cancer therapy.
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Affiliation(s)
- Jérémy Béguin
- Transgene, Illkirch-Graffenstaden, France
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
- Department of Internal Medicine, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France
| | | | | | | | - Bernard Klonjkowski
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Christelle Maurey
- Department of Internal Medicine, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France
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Fusciello M, Ylösmäki E, Cerullo V. Viral Nanoparticles: Cancer Vaccines and Immune Modulators. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1295:317-325. [PMID: 33543466 DOI: 10.1007/978-3-030-58174-9_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In the last decades, viruses have gained great interest in the field of immuno-oncology (I-O) for their ability of interacting both with the immune system and the tumour microenvironment. Those pathogens have naturally evolved and been evolutionary to specifically infect hosts, replicate, deliver their genome, and spread. These properties, initially considered a disadvantage, have been investigated and edited to turn viruses into precious allies for molecular biology serving as gene therapy vectors, adjuvants for the immune system, drug cargos, and, lately, anticancer therapeutics. As anticancer drug, one interesting option is viral engineering. Modification of either the viral genome or the outer shell of viruses can change infectivity and tissue targeting and add new functions to the viral particle. Remarkably, in the field of cancer virotherapy, scientists realized that a specific viral genomic depletion would turn the normal tropism of viruses to conditionally replicate in cancer cells only. This category of viruses, named 'Oncolytic viruses', have been investigated and used for cancer treatment in the past decades resulting in the approval of the first oncolytic virus, a herpes simplex virus expressing a stimulating factor, named T-Vec, in 2015. As such, oncolytic viruses achieved positive outcome but still are not able to completely eradicate the disease. This has brought the scientific community to edit those agents, adding to their ability to directly lysate cancer cells, few modifications to mainly boost their interaction with the immune system. Viruses experienced then a renaissance not only as infecting agent but as nanoparticle and cancer vaccines too. These strategies bring new life to the concept of using viruses as viral particles for therapeutic applications.
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Affiliation(s)
- Manlio Fusciello
- Drug Research Program, Division of Pharmaceutical Biosciences and Digital Precision Cancer Medicine Flagship (iCAN), Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Erkko Ylösmäki
- Drug Research Program, Division of Pharmaceutical Biosciences and Digital Precision Cancer Medicine Flagship (iCAN), Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Vincenzo Cerullo
- Drug Research Program, Division of Pharmaceutical Biosciences and Digital Precision Cancer Medicine Flagship (iCAN), Faculty of Pharmacy, University of Helsinki, Helsinki, Finland. .,Department of Molecular Medicine and Medical Biotechnology and CEINGE, Naples University Federico II, Naples, Italy.
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24
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Howard F, Muthana M. Designer nanocarriers for navigating the systemic delivery of oncolytic viruses. Nanomedicine (Lond) 2020; 15:93-110. [PMID: 31868115 DOI: 10.2217/nnm-2019-0323] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Nanotechnology is paving the way for new carrier systems designed to overcome the greatest challenges of oncolytic virotherapy; systemic administration and subsequent implications of immune responses and specific cell binding and entry. Systemic administration of oncolytic agents is vital for disseminated neoplasms, however transition of nanoparticles (NP) to virotherapy has yielded modest results. Their success relies on how they navigate the merry-go-round of often-contradictory phases of NP delivery: circulatory longevity, tissue permeation and cellular interaction, with many studies postulating design features optimal for each phase. This review discusses the optimal design of NPs for the transport of oncolytic viruses within these phases, to determine whether improved virotherapeutic efficacy lies in the pharmacokinetic/pharmacodynamics characteristics of the NP-oncolytic viruses complexes rather than manipulation of the virus and targeting ligands.
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25
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Cook M, Chauhan A. Clinical Application of Oncolytic Viruses: A Systematic Review. Int J Mol Sci 2020; 21:ijms21207505. [PMID: 33053757 PMCID: PMC7589713 DOI: 10.3390/ijms21207505] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 02/07/2023] Open
Abstract
Leveraging the immune system to thwart cancer is not a novel strategy and has been explored via cancer vaccines and use of immunomodulators like interferons. However, it was not until the introduction of immune checkpoint inhibitors that we realized the true potential of immunotherapy in combating cancer. Oncolytic viruses are one such immunotherapeutic tool that is currently being explored in cancer therapeutics. We present the most comprehensive systematic review of all oncolytic viruses in Phase 1, 2, and 3 clinical trials published to date. We performed a systematic review of all published clinical trials indexed in PubMed that utilized oncolytic viruses. Trials were reviewed for type of oncolytic virus used, method of administration, study design, disease type, primary outcome, and relevant adverse effects. A total of 120 trials were found; 86 trials were available for our review. Included were 60 phase I trials, five phase I/II combination trials, 19 phase II trials, and two phase III clinical trials. Oncolytic viruses are feverously being evaluated in oncology with over 30 different types of oncolytic viruses being explored either as a single agent or in combination with other antitumor agents. To date, only one oncolytic virus therapy has received an FDA approval but advances in bioengineering techniques and our understanding of immunomodulation to heighten oncolytic virus replication and improve tumor kill raises optimism for its future drug development.
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Affiliation(s)
- Mary Cook
- Department of Internal Medicine, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland Medical Center, 22 S. Greene Street, Baltimore, MD 21201, USA;
| | - Aman Chauhan
- Department of Internal Medicine-Medical Oncology, University of Kentucky, Lexington, KY 40536, USA
- Markey Cancer Center, University of Kentucky, 800 Rose Street, Lexington, KY 40536, USA
- Correspondence: ; Tel.: +504-278-0134
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Hammad M, Cornejo YR, Batalla-Covello J, Majid AA, Burke C, Liu Z, Yuan YC, Li M, Dellinger TH, Lu J, Chen NG, Fong Y, Aboody KS, Mooney R. Neural Stem Cells Improve the Delivery of Oncolytic Chimeric Orthopoxvirus in a Metastatic Ovarian Cancer Model. Mol Ther Oncolytics 2020; 18:326-334. [PMID: 32775617 PMCID: PMC7394740 DOI: 10.1016/j.omto.2020.07.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/01/2020] [Indexed: 12/22/2022] Open
Abstract
Oncolytic virotherapy represents a promising approach for treating recurrent and/or drug-resistant ovarian cancer. However, its successful application in the clinic has been hampered by rapid immune-mediated clearance, which reduces viral delivery to the tumor. Patient-derived mesenchymal stem cells that home to tumors have been used as viral delivery tools, but variability associated with autologous cell isolations limits the clinical applicability of this approach. We previously developed an allogeneic, clonal neural stem cell (NSC) line (HB1.F3.CD21) that can be used to deliver viral cargo. Here, we demonstrate that this NSC line can improve the delivery of a thymidine kinase gene-deficient conditionally replication-competent orthopoxvirus, CF33, in a preclinical cisplatin-resistant peritoneal ovarian metastases model. Overall, our findings provide the basis for using off-the-shelf allogeneic cell-based delivery platforms for oncolytic viruses, thus providing a more efficient delivery alternative compared with the free virus administration approach.
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Affiliation(s)
- Mohamed Hammad
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
| | - Yvonne R. Cornejo
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
- Irell & Manella Graduate School for Biological Sciences at the Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Jennifer Batalla-Covello
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
- Irell & Manella Graduate School for Biological Sciences at the Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Asma Abdul Majid
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
| | - Connor Burke
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
| | - Zheng Liu
- Translational Bioinformatics Division, Center for Informatics, City of Hope, Duarte, CA 91010, USA
| | - Yate-Ching Yuan
- Translational Bioinformatics Division, Center for Informatics, City of Hope, Duarte, CA 91010, USA
| | - Min Li
- Department of Information Sciences, Division of Biostatistics at the Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Thanh H. Dellinger
- Division of Gynecologic Surgery, Department of Surgery, City of Hope, Duarte, CA 91010, USA
| | - Jianming Lu
- Department of Surgery, City of Hope, Duarte, CA 91010, USA
| | - Nanhai G. Chen
- Department of Surgery, City of Hope, Duarte, CA 91010, USA
- Center for Gene Therapy, City of Hope, Duarte, CA 91010, USA
| | - Yuman Fong
- Department of Surgery, City of Hope, Duarte, CA 91010, USA
- Center for Gene Therapy, City of Hope, Duarte, CA 91010, USA
| | - Karen S. Aboody
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
- Division of Neurosurgery, City of Hope, Duarte, CA 91010, USA
| | - Rachael Mooney
- Department of Developmental and Stem Cell Biology, City of Hope, Duarte, CA 91010, USA
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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.
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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
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28
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Kloker LD, Berchtold S, Smirnow I, Beil J, Krieg A, Sipos B, Lauer UM. Oncolytic vaccinia virus GLV-1h68 exhibits profound antitumoral activities in cell lines originating from neuroendocrine neoplasms. BMC Cancer 2020; 20:628. [PMID: 32631270 PMCID: PMC7339398 DOI: 10.1186/s12885-020-07121-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 06/29/2020] [Indexed: 02/07/2023] Open
Abstract
Background Oncolytic virotherapy is an upcoming treatment option for many tumor entities. But so far, a first oncolytic virus only was approved for advanced stages of malignant melanomas. Neuroendocrine tumors (NETs) constitute a heterogenous group of tumors arising from the neuroendocrine system at diverse anatomic sites. Due to often slow growth rates and (in most cases) endocrine non-functionality, NETs are often detected only in a progressed metastatic situation, where therapy options are still severely limited. So far, immunotherapies and especially immunovirotherapies are not established as novel treatment modalities for NETs. Methods In this immunovirotherapy study, pancreatic NET (BON-1, QGP-1), lung NET (H727, UMC-11), as well as neuroendocrine carcinoma (NEC) cell lines (HROC-57, NEC-DUE1) were employed. The well characterized genetically engineered vaccinia virus GLV-1 h68, which has already been investigated in various clinical trials, was chosen as virotherapeutical treatment modality. Results Profound oncolytic efficiencies were found for NET/NEC tumor cells. Besides, NET/NEC tumor cell bound expression of GLV-1 h68-encoded marker genes was observed also. Furthermore, a highly efficient production of viral progenies was detected by sequential virus quantifications. Moreover, the mTOR inhibitor everolimus, licensed for treatment of metastatic NETs, was not found to interfere with GLV-1 h68 replication, making a combinatorial treatment of both feasible. Conclusions In summary, the oncolytic vaccinia virus GLV-1 h68 was found to exhibit promising antitumoral activities, replication capacities and a potential for future combinatorial approaches in cell lines originating from neuroendocrine neoplasms. Based on these preliminary findings, virotherapeutic effects now have to be further evaluated in animal models for treatment of Neuroendocrine neoplasms (NENs).
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Affiliation(s)
- Linus D Kloker
- Department of Internal Medicine VIII, Department of Medical Oncology and Pneumology, University Hospital Tuebingen, University of Tuebingen, Otfried-Mueller-Strasse 10, 72076, Tuebingen, Baden-Wuerttemberg, Germany
| | - Susanne Berchtold
- Department of Internal Medicine VIII, Department of Medical Oncology and Pneumology, University Hospital Tuebingen, University of Tuebingen, Otfried-Mueller-Strasse 10, 72076, Tuebingen, Baden-Wuerttemberg, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 72076, Tuebingen, Germany
| | - Irina Smirnow
- Department of Internal Medicine VIII, Department of Medical Oncology and Pneumology, University Hospital Tuebingen, University of Tuebingen, Otfried-Mueller-Strasse 10, 72076, Tuebingen, Baden-Wuerttemberg, Germany
| | - Julia Beil
- Department of Internal Medicine VIII, Department of Medical Oncology and Pneumology, University Hospital Tuebingen, University of Tuebingen, Otfried-Mueller-Strasse 10, 72076, Tuebingen, Baden-Wuerttemberg, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 72076, Tuebingen, Germany
| | - Andreas Krieg
- Department of Surgery (A), Heinrich-Heine-University and University Hospital Duesseldorf, 40225, Duesseldorf, Germany
| | - Bence Sipos
- Department of Internal Medicine VIII, Department of Medical Oncology and Pneumology, University Hospital Tuebingen, University of Tuebingen, Otfried-Mueller-Strasse 10, 72076, Tuebingen, Baden-Wuerttemberg, Germany
| | - Ulrich M Lauer
- Department of Internal Medicine VIII, Department of Medical Oncology and Pneumology, University Hospital Tuebingen, University of Tuebingen, Otfried-Mueller-Strasse 10, 72076, Tuebingen, Baden-Wuerttemberg, Germany. .,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 72076, Tuebingen, Germany.
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Abstract
The optimal clinical exploitation of viruses as gene therapy or oncolytic vectors will require them to be administered intravenously. Strategies must therefore be deployed to enable viruses to survive the harsh neutralizing environment of the bloodstream and achieve deposition within and throughout target tissues or tumor deposits. This chapter describes the genetic and chemical engineering approaches that are being developed to overcome these challenges.
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Affiliation(s)
- Claudia A P Hill
- Institute of Biomedical Engineering, University of Oxford, Oxford, UK
| | - Luca Bau
- Institute of Biomedical Engineering, University of Oxford, Oxford, UK
| | - Robert Carlisle
- Institute of Biomedical Engineering, University of Oxford, Oxford, UK.
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30
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Pipperger L, Koske I, Wild N, Müllauer B, Krenn D, Stoiber H, Wollmann G, Kimpel J, von Laer D, Bánki Z. Xenoantigen-Dependent Complement-Mediated Neutralization of Lymphocytic Choriomeningitis Virus Glycoprotein-Pseudotyped Vesicular Stomatitis Virus in Human Serum. J Virol 2019; 93:e00567-19. [PMID: 31243134 PMCID: PMC6714799 DOI: 10.1128/jvi.00567-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/18/2019] [Indexed: 01/09/2023] Open
Abstract
Neutralization by antibodies and complement limits the effective dose and thus the therapeutic efficacy of oncolytic viruses after systemic application. We and others previously showed that pseudotyping of oncolytic rhabdoviruses such as maraba virus and vesicular stomatitis virus (VSV) with the lymphocytic choriomeningitis virus glycoprotein (LCMV-GP) results in only a weak induction of neutralizing antibodies. Moreover, LCMV-GP-pseudotyped VSV (VSV-GP) was significantly more stable in normal human serum (NHS) than VSV. Here, we demonstrate that depending on the cell line used for virus production, VSV-GP showed different complement sensitivities in nonimmune NHS. The NHS-mediated titer reduction of VSV-GP was dependent on activation of the classical complement pathway, mainly by natural IgM antibodies against xenoantigens such as galactose-α-(1,3)-galactose (α-Gal) or N-glycolylneuraminic acid (Neu5Gc) expressed on nonhuman production cell lines. VSV-GP produced on human cell lines was stable in NHS. However, VSV-GP generated in transduced human cells expressing α-Gal became sensitive to NHS. Furthermore, GP-specific antibodies induced complement-mediated neutralization of VSV-GP independently of the producer cell line, suggesting that complement regulatory proteins potentially acquired by the virus during the budding process are not sufficient to rescue the virus from antibody-dependent complement-mediated lysis. Thus, our study points to the importance of a careful selection of cell lines for viral vector production for clinical use.IMPORTANCE Systemic application aims to deliver oncolytic viruses to tumors as well as to metastatic lesions. However, we found that xenoantigens incorporated onto the viral surface from nonhuman production cell lines are recognized by natural antibodies in human serum and that the virus is thereby inactivated by complement lysis. Hence, to maximize the effective dose, careful selection of cell lines for virus production is crucial.
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Affiliation(s)
- Lisa Pipperger
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Iris Koske
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Nicole Wild
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Brigitte Müllauer
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Daniela Krenn
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Heribert Stoiber
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Guido Wollmann
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
- Christian Doppler Laboratory for Viral Immunotherapy of Cancer, Medical University of Innsbruck, Innsbruck, Austria
| | - Janine Kimpel
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Dorothee von Laer
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Zoltán Bánki
- Division of Virology, Medical University of Innsbruck, Innsbruck, Austria
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31
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Minev BR, Lander E, Feller JF, Berman M, Greenwood BM, Minev I, Santidrian AF, Nguyen D, Draganov D, Killinc MO, Vyalkova A, Kesari S, McClay E, Carabulea G, Marincola FM, Butterfield LH, Szalay AA. First-in-human study of TK-positive oncolytic vaccinia virus delivered by adipose stromal vascular fraction cells. J Transl Med 2019; 17:271. [PMID: 31426803 PMCID: PMC6699108 DOI: 10.1186/s12967-019-2011-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 07/31/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND ACAM2000, a thymidine kinase (TK)-positive strain of vaccinia virus, is the current smallpox vaccine in the US. Preclinical testing demonstrated potent oncolytic activity of ACAM2000 against several tumor types. This Phase I clinical trial of ACAM2000 delivered by autologous adipose stromal vascular fraction (SVF) cells was conducted to determine the safety and feasibility of such a treatment in patients with advanced solid tumors or acute myeloid leukemia (AML). METHODS Twenty-four patients with solid tumors and two patients with AML participated in this open-label, non-randomized dose-escalation trial. All patients were treated with SVF derived from autologous fat and incubated for 15 min to 1 h with ACAM2000 before application. Six patients received systemic intravenous application only, one patient received intra-tumoral application only, 15 patients received combination intravenous with intra-tumoral deployment, 3 patients received intravenous and intra-peritoneal injection and 1 patient received intravenous, intra-tumoral and intra-peritoneal injections. Safety at each dose level of ACAM2000 (1.4 × 106 plaque-forming units (PFU) to 1.8 × 107 PFU) was evaluated. Blood samples for PK assessments, flow cytometry and cytokine analysis were collected at baseline and 1 min, 1 h, 1 day, 1 week, 1 month, 3 months and 6 months following treatment. RESULTS No serious toxicities (> grade 2) were reported. Seven patients reported an adverse event (AE) in this study: self-limiting skin rashes, lasting 7 to 18 days-an expected adverse reaction to ACAM2000. No AEs leading to study discontinuation were reported. Viral DNA was detected in all patients' blood samples immediately following treatment. Interestingly, in 8 patients viral DNA disappeared 1 day and re-appeared 1 week post treatment, suggesting active viral replication at tumor sites, and correlating with longer survival of these patients. No major increase in cytokine levels or correlation between cytokine levels and skin rashes was noted. We were able to assess some initial efficacy signals, especially when the ACAM2000/SVF treatment was combined with checkpoint inhibition. CONCLUSIONS Treatment with ACAM2000/SVF in patients with advanced solid tumors or AML is safe and well tolerated, and several patients had signals of an anticancer effect. These promising initial clinical results merit further investigation of therapeutic utility. Trial registration Retrospectively registered (ISRCTN#10201650) on October 22, 2018.
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Affiliation(s)
- Boris R Minev
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA. .,Department of Radiation Medicine and Applied Sciences, Moores UCSD Cancer Center, San Diego, USA.
| | | | | | | | | | - Ivelina Minev
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA
| | - Antonio F Santidrian
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA
| | - Duong Nguyen
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA
| | - Dobrin Draganov
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA
| | - Mehmet O Killinc
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA
| | - Anna Vyalkova
- Institute of Biochemistry, University of Wurzburg, Würzburg, Germany
| | - Santosh Kesari
- Department of Translational Neurosciences and Neurotherapeutics, John Wayne Cancer Institute, Santa Monica, USA
| | - Edward McClay
- California Cancer Associates for Research and Excellence, San Diego, USA
| | | | | | | | - Aladar A Szalay
- Calidi Biotherapeutics, 10210 Campus Point Drive, Suite 150, San Diego, CA, 92121, USA.,Department of Radiation Medicine and Applied Sciences, Moores UCSD Cancer Center, San Diego, USA.,Institute of Biochemistry, University of Wurzburg, Würzburg, Germany
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Ajina A, Maher J. Synergistic combination of oncolytic virotherapy with CAR T-cell therapy. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2019; 164:217-292. [PMID: 31383406 DOI: 10.1016/bs.pmbts.2019.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
For patients with advanced hematological malignancies the therapeutic landscape has been transformed by the emergence of adoptive cell transfer utilizing autologous chimeric antigen receptor (CAR)-redirected T-cells. However, solid tumors have proved far more resistant to this approach. Here, we summarize the numerous challenges faced by CAR T-cells designed to target solid tumors, highlighting, in particular, issues related to impaired trafficking, expansion, and persistence. In parallel, we draw attention to exciting developments in the burgeoning field of oncolytic virotherapy and posit strategies for the synergistic combination of oncolytic viruses with CAR T-cells to improve outcomes for patients with advanced solid tumors.
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Affiliation(s)
- Adam Ajina
- King's College London, Division of Cancer Studies, Guy's Hospital, London, United Kingdom.
| | - John Maher
- King's College London, Division of Cancer Studies, Guy's Hospital, London, United Kingdom; Department of Clinical Immunology and Allergy, King's College Hospital NHS Foundation Trust, London, United Kingdom; Department of Immunology, Eastbourne Hospital, East Sussex, United Kingdom
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33
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Affiliation(s)
- Claudia Hill
- Institute of Biomedical Engineering, University of Oxford, Oxford, UK
| | - Robert Carlisle
- Institute of Biomedical Engineering, University of Oxford, Oxford, UK
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34
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Pio R, Ajona D, Ortiz-Espinosa S, Mantovani A, Lambris JD. Complementing the Cancer-Immunity Cycle. Front Immunol 2019; 10:774. [PMID: 31031765 PMCID: PMC6473060 DOI: 10.3389/fimmu.2019.00774] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 03/25/2019] [Indexed: 12/12/2022] Open
Abstract
Reactivation of cytotoxic CD8+ T-cell responses has set a new direction for cancer immunotherapy. Neutralizing antibodies targeting immune checkpoint programmed cell death protein 1 (PD-1) or its ligand (PD-L1) have been particularly successful for tumor types with limited therapeutic options such as melanoma and lung cancer. However, reactivation of T cells is only one step toward tumor elimination, and a substantial fraction of patients fails to respond to these therapies. In this context, combination therapies targeting more than one of the steps of the cancer-immune cycle may provide significant benefits. To find the best combinations, it is of upmost importance to understand the interplay between cancer cells and all the components of the immune response. This review focuses on the elements of the complement system that come into play in the cancer-immunity cycle. The complement system, an essential part of innate immunity, has emerged as a major regulator of cancer immunity. Complement effectors such as C1q, anaphylatoxins C3a and C5a, and their receptors C3aR and C5aR1, have been associated with tolerogenic cell death and inhibition of antitumor T-cell responses through the recruitment and/or activation of immunosuppressive cell subpopulations such as myeloid-derived suppressor cells (MDSCs), regulatory T cells (Tregs), or M2 tumor-associated macrophages (TAMs). Evidence is provided to support the idea that complement blocks many of the effector routes associated with the cancer-immunity cycle, providing the rationale for new therapeutic combinations aimed to enhance the antitumor efficacy of anti-PD-1/PD-L1 checkpoint inhibitors.
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Affiliation(s)
- Ruben Pio
- Program in Solid Tumors (CIMA) and Department of Biochemistry and Genetics (School of Medicine), University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Daniel Ajona
- Program in Solid Tumors (CIMA) and Department of Biochemistry and Genetics (School of Medicine), University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Sergio Ortiz-Espinosa
- Program in Solid Tumors (CIMA) and Department of Biochemistry and Genetics (School of Medicine), University of Navarra, Pamplona, Spain
| | - Alberto Mantovani
- Humanitas Clinical and Research Center, Humanitas University, Milan, Italy
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - John D. Lambris
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, United States
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35
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Berkeley RA, Steele LP, Mulder AA, van den Wollenberg DJM, Kottke TJ, Thompson J, Coffey M, Hoeben RC, Vile RG, Melcher A, Ilett EJ. Antibody-Neutralized Reovirus Is Effective in Oncolytic Virotherapy. Cancer Immunol Res 2018; 6:1161-1173. [PMID: 30209061 DOI: 10.1158/2326-6066.cir-18-0309] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 11/16/2022]
Abstract
Immunotherapy is showing promise for otherwise incurable cancers. Oncolytic viruses (OVs), developed as direct cytotoxic agents, mediate their antitumor effects via activation of the immune system. However, OVs also stimulate antiviral immune responses, including the induction of OV-neutralizing antibodies. Current dogma suggests that the presence of preexisting antiviral neutralizing antibodies in patients, or their development during viral therapy, is a barrier to systemic OV delivery, rendering repeat systemic treatments ineffective. However, we have found that human monocytes loaded with preformed reovirus-antibody complexes, in which the reovirus is fully neutralized, deliver functional replicative reovirus to tumor cells, resulting in tumor cell infection and lysis. This delivery mechanism is mediated, at least in part, by antibody receptors (in particular FcγRIII) that mediate uptake and internalization of the reovirus/antibody complexes by the monocytes. This finding has implications for oncolytic virotherapy and for the design of clinical OV treatment strategies. Cancer Immunol Res; 6(10); 1161-73. ©2018 AACR.
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Affiliation(s)
- Robert A Berkeley
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, United Kingdom
| | - Lynette P Steele
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, United Kingdom
| | - Aat A Mulder
- Leiden University Medical Centre, Department of Molecular Cell Biology, Leiden, the Netherlands
| | | | | | - Jill Thompson
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Matthew Coffey
- Oncolytics Biotech Incorporated, Calgary, Alberta, Canada
| | - Rob C Hoeben
- Leiden University Medical Centre, Department of Molecular Cell Biology, Leiden, the Netherlands
| | - Richard G Vile
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Alan Melcher
- Institute of Cancer Research, London, United Kingdom
| | - Elizabeth J Ilett
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, United Kingdom.
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36
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Forbes NS, Coffin RS, Deng L, Evgin L, Fiering S, Giacalone M, Gravekamp C, Gulley JL, Gunn H, Hoffman RM, Kaur B, Liu K, Lyerly HK, Marciscano AE, Moradian E, Ruppel S, Saltzman DA, Tattersall PJ, Thorne S, Vile RG, Zhang HH, Zhou S, McFadden G. White paper on microbial anti-cancer therapy and prevention. J Immunother Cancer 2018; 6:78. [PMID: 30081947 PMCID: PMC6091193 DOI: 10.1186/s40425-018-0381-3] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/27/2018] [Indexed: 12/13/2022] Open
Abstract
In this White Paper, we discuss the current state of microbial cancer therapy. This paper resulted from a meeting ('Microbial Based Cancer Therapy') at the US National Cancer Institute in the summer of 2017. Here, we define 'Microbial Therapy' to include both oncolytic viral therapy and bacterial anticancer therapy. Both of these fields exploit tumor-specific infectious microbes to treat cancer, have similar mechanisms of action, and are facing similar challenges to commercialization. We designed this paper to nucleate this growing field of microbial therapeutics and increase interactions between researchers in it and related fields. The authors of this paper include many primary researchers in this field. In this paper, we discuss the potential, status and opportunities for microbial therapy as well as strategies attempted to date and important questions that need to be addressed. The main areas that we think will have the greatest impact are immune stimulation, control of efficacy, control of delivery, and safety. There is much excitement about the potential of this field to treat currently intractable cancer. Much of the potential exists because these therapies utilize unique mechanisms of action, difficult to achieve with other biological or small molecule drugs. By better understanding and controlling these mechanisms, we will create new therapies that will become integral components of cancer care.
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Affiliation(s)
- Neil S Forbes
- grid.266683.f0000 0001 2184 9220Department of Chemical EngineeringUniversity of Massachusetts 159 Goessmann Hall 01003 Amherst MA USA
| | | | - Liang Deng
- 0000 0001 2171 9952grid.51462.34Department of Medicine, Memorial Sloan Kettering Cancer Center 10065 New York NY USA
| | - Laura Evgin
- 0000 0004 0459 167Xgrid.66875.3aMayo Clinic Rochester USA
| | - Steve Fiering
- 0000 0001 2179 2404grid.254880.3Geisel School of Medicine at Dartmouth Hanover USA
| | | | - Claudia Gravekamp
- 0000000121791997grid.251993.5Albert Einstein College of Medicine Bronx USA
| | - James L Gulley
- 0000 0004 1936 8075grid.48336.3aNational Cancer Institute, National Institutes of Health Bethesda USA
| | | | - Robert M Hoffman
- 0000 0001 2107 4242grid.266100.3UC, San Diego San Diego USA
- 0000 0004 0461 1271grid.417448.aAntiCancer Inc. San Diego USA
| | - Balveen Kaur
- 0000000121548364grid.55460.32University of Texas Austin USA
| | - Ke Liu
- 0000 0001 2243 3366grid.417587.8Center for Biologics Evaluation and ResearchUS Food and Drug Administration Silver Spring USA
| | | | - Ariel E Marciscano
- 0000 0004 1936 8075grid.48336.3aNational Cancer Institute, National Institutes of Health Bethesda USA
| | | | - Sheryl Ruppel
- 0000 0004 4665 8158grid.419407.fLeidos Biomedical Research, Inc. Frederick USA
| | - Daniel A Saltzman
- 0000000419368657grid.17635.36University of Minnesota Minneapolis USA
| | | | - Steve Thorne
- 0000 0004 1936 9000grid.21925.3dUniversity of Pittsburgh Pittsburgh USA
| | - Richard G Vile
- 0000 0004 0459 167Xgrid.66875.3aMayo Clinic Rochester USA
| | | | - Shibin Zhou
- 0000 0001 2171 9311grid.21107.35Johns Hopkins University Baltimore USA
| | - Grant McFadden
- 0000 0001 2151 2636grid.215654.1Center for Immunotherapy, Vaccines and Virotherapy , Biodesign InstituteArizona State University 727 E Tyler Street, Room A330E 85281 Tempe AZ USA
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37
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Oncolytic Viruses as Therapeutic Tools for Pediatric Brain Tumors. Cancers (Basel) 2018; 10:cancers10070226. [PMID: 29987215 PMCID: PMC6071081 DOI: 10.3390/cancers10070226] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/04/2018] [Indexed: 12/18/2022] Open
Abstract
In recent years, we have seen an important progress in our comprehension of the molecular basis of pediatric brain tumors (PBTs). However, they still represent the main cause of death by disease in children. Due to the poor prognosis of some types of PBTs and the long-term adverse effects associated with the traditional treatments, oncolytic viruses (OVs) have emerged as an interesting therapeutic option since they displayed safety and high tolerability in pre-clinical and clinical levels. In this review, we summarize the OVs evaluated in different types of PBTs, mostly in pre-clinical studies, and we discuss the possible future direction of research in this field. In this sense, one important aspect of OVs antitumoral effect is the stimulation of an immune response against the tumor which is necessary for a complete response in preclinical immunocompetent models and in the clinic. The role of the immune system in the response of OVs needs to be evaluated in PBTs and represents an experimental challenge due to the limited immunocompetent models of these diseases available for pre-clinical research.
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38
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Lauer UM, Schell M, Beil J, Berchtold S, Koppenhöfer U, Glatzle J, Königsrainer A, Möhle R, Nann D, Fend F, Pfannenberg C, Bitzer M, Malek NP. Phase I Study of Oncolytic Vaccinia Virus GL-ONC1 in Patients with Peritoneal Carcinomatosis. Clin Cancer Res 2018; 24:4388-4398. [PMID: 29773661 DOI: 10.1158/1078-0432.ccr-18-0244] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/05/2018] [Accepted: 05/14/2018] [Indexed: 11/16/2022]
Abstract
Purpose: Peritoneal carcinomatosis is common in advanced tumor stages or disease recurrence arising from gastrointestinal cancers, gynecologic malignancies, or primary peritoneal carcinoma. Because current therapies are mostly ineffective, new therapeutic approaches are needed. Here, we report on a phase I study designed to assess safety, MTD, and antitumor activity of intraperitoneal administration of oncolytic vaccinia virus GL-ONC1 in advanced stage peritoneal carcinomatosis patients.Patients and Methods: GL-ONC1 was administered intraperitoneally every 4 weeks for up to four cycles at three different dose levels (107-109 pfu) following a standard 3+3 dose escalation design. GL-ONC1 was infused via an indwelling catheter that enabled repetitive analyses of peritoneal fluid biopsies. The primary study objective was safety of GL-ONC1 according to Common Terminology Criteria for Adverse Events, version 4.0 (CTCAEv4.0).Results: Patients with advanced-stage peritoneal carcinomatosis (n = 7) or advanced peritoneal mesothelioma (n = 2) received 24 doses of GL-ONC1. Adverse events were limited to grades 1-3, including transient flu-like symptoms and increased abdominal pain, resulting from treatment-induced peritonitis. No DLT was reported, and the MTD was not reached. Furthermore, no signs of viral shedding were observed. Importantly, in 8 of 9 study patients, effective intraperitoneal infections, in-patient replication of GL-ONC1, and subsequent oncolysis were demonstrated in cycle 1. All patients developed neutralizing activities against GL-ONC1.Conclusions: GL-ONC1 was well tolerated when administered into the peritoneal cavity of patients with advanced stage peritoneal carcinomatosis. Efficient tumor cell infection, in-patient virus replication, and oncolysis were limited to treatment cycle 1 (ClinicalTrials.gov number, NCT01443260). Clin Cancer Res; 24(18); 4388-98. ©2018 AACR.
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Affiliation(s)
- Ulrich M Lauer
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany. .,German Cancer Consortium (DKTK), DKFZ partner site Tübingen, Tübingen, Germany
| | - Martina Schell
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany
| | - Julia Beil
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany.,German Cancer Consortium (DKTK), DKFZ partner site Tübingen, Tübingen, Germany
| | - Susanne Berchtold
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany.,German Cancer Consortium (DKTK), DKFZ partner site Tübingen, Tübingen, Germany
| | - Ursula Koppenhöfer
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany
| | - Jörg Glatzle
- Department of General, Visceral and Transplant Surgery, University Hospital, Tübingen, Germany
| | - Alfred Königsrainer
- Department of General, Visceral and Transplant Surgery, University Hospital, Tübingen, Germany
| | - Robert Möhle
- Department of Internal Medicine II, Medical University Hospital, Tübingen, Germany
| | - Dominik Nann
- Institute of Pathology, University Hospital, Tübingen, Germany
| | - Falko Fend
- Institute of Pathology, University Hospital, Tübingen, Germany
| | - Christina Pfannenberg
- Department of Diagnostic and Interventional Radiology, University Hospital, Tübingen, Germany
| | - Michael Bitzer
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany
| | - Nisar P Malek
- Department of Gastroenterology, Hepatology, Infectious Diseases, Medical University Hospital, Tübingen, Germany
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Abstract
Multiple myeloma (MM) is a clonal malignancy of plasma cells that is newly diagnosed in ~30,000 patients in the US each year. While recently developed therapies have improved the prognosis for MM patients, relapse rates remain unacceptably high. To overcome this challenge, researchers have begun to investigate the therapeutic potential of oncolytic viruses as a novel treatment option for MM. Preclinical work with these viruses has demonstrated that their infection can be highly specific for MM cells and results in impressive therapeutic efficacy in a variety of preclinical models. This has led to the recent initiation of several human trials. This review summarizes the current state of oncolytic therapy as a therapeutic option for MM and highlights a variety of areas that need to be addressed as the field moves forward.
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Affiliation(s)
- Eric Bartee
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
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40
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Fitzpatrick Z, Leborgne C, Barbon E, Masat E, Ronzitti G, van Wittenberghe L, Vignaud A, Collaud F, Charles S, Simon Sola M, Jouen F, Boyer O, Mingozzi F. Influence of Pre-existing Anti-capsid Neutralizing and Binding Antibodies on AAV Vector Transduction. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2018; 9:119-129. [PMID: 29766022 PMCID: PMC5948224 DOI: 10.1016/j.omtm.2018.02.003] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 02/08/2018] [Indexed: 12/30/2022]
Abstract
Pre-existing immunity to adeno-associated virus (AAV) is highly prevalent in humans and can profoundly impact transduction efficiency. Despite the relevance to AAV-mediated gene transfer, relatively little is known about the fate of AAV vectors in the presence of neutralizing antibodies (NAbs). Similarly, the effect of binding antibodies (BAbs), with no detectable neutralizing activity, on AAV transduction is ill defined. Here, we delivered AAV8 vectors to mice carrying NAbs and demonstrated that AAV particles are taken up by both liver parenchymal and non-parenchymal cells; viral particles are then rapidly cleared, without resulting in transgene expression. In vitro, imaging of hepatocytes exposed to AAV vectors pre-incubated with either NAbs or BAbs revealed that virus is taken up by cells in both cases. Whereas no successful transduction was observed when AAV was pre-incubated with NAbs, an increased capsid internalization and transgene expression was observed in the presence of BAbs. Accordingly, AAV8 vectors administered to mice passively immunized with anti-AAV8 BAbs showed a more efficient liver transduction and a unique vector biodistribution profile compared to mice immunized with NAbs. These results highlight a virtually opposite effect of neutralizing and binding antibodies on AAV vectors transduction.
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Affiliation(s)
- Zachary Fitzpatrick
- University Pierre and Marie Curie - Paris 6 and INSERM U974, 75005 Paris, France.,Genethon and INSERM U951, 91000 Evry, France
| | | | | | - Elisa Masat
- University Pierre and Marie Curie - Paris 6 and INSERM U974, 75005 Paris, France
| | | | | | | | | | | | - Marcelo Simon Sola
- University Pierre and Marie Curie - Paris 6 and INSERM U974, 75005 Paris, France.,Genethon and INSERM U951, 91000 Evry, France
| | - Fabienne Jouen
- Department of Immunology and Biotherapy, Normandie University, UNIROUEN, INSERM, U1234, 76000 Rouen University Hospital, Rouen, France
| | - Olivier Boyer
- Department of Immunology and Biotherapy, Normandie University, UNIROUEN, INSERM, U1234, 76000 Rouen University Hospital, Rouen, France
| | - Federico Mingozzi
- University Pierre and Marie Curie - Paris 6 and INSERM U974, 75005 Paris, France.,Genethon and INSERM U951, 91000 Evry, France
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41
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Ajina A, Maher J. Prospects for combined use of oncolytic viruses and CAR T-cells. J Immunother Cancer 2017; 5:90. [PMID: 29157300 PMCID: PMC5696728 DOI: 10.1186/s40425-017-0294-6] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 10/17/2017] [Indexed: 12/18/2022] Open
Abstract
With the approval of talimogene laherparepvec (T-VEC) for inoperable locally advanced or metastatic malignant melanoma in the USA and Europe, oncolytic virotherapy is now emerging as a viable therapeutic option for cancer patients. In parallel, following the favourable results of several clinical trials, adoptive cell transfer using chimeric antigen receptor (CAR)-redirected T-cells is anticipated to enter routine clinical practice for the management of chemotherapy-refractory B-cell malignancies. However, CAR T-cell therapy for patients with advanced solid tumours has proved far less successful. This Review draws upon recent advances in the design of novel oncolytic viruses and CAR T-cells and provides a comprehensive overview of the synergistic potential of combination oncolytic virotherapy with CAR T-cell adoptive cell transfer for the management of solid tumours, drawing particular attention to the methods by which recombinant oncolytic viruses may augment CAR T-cell trafficking into the tumour microenvironment, mitigate or reverse local immunosuppression and enhance CAR T-cell effector function and persistence.
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Affiliation(s)
- Adam Ajina
- Department of Oncology, Royal Free London NHS Foundation Trust, London, UK
| | - John Maher
- King’s College London, CAR Mechanics Group, School of Cancer and Pharmaceutical Sciences, Guy’s Hospital Campus, Great Maze Pond, London, SE1 9RT UK
- Department of Clinical Immunology and Allergy, King’s College Hospital NHS Foundation Trust, London, UK
- Department of Immunology, Eastbourne Hospital, East Sussex, UK
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42
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Hummel J, Bienzle D, Morrison A, Cieplak M, Stephenson K, DeLay J, Woods JP, Lichty BD, Bridle BW. Maraba virus-vectored cancer vaccines represent a safe and novel therapeutic option for cats. Sci Rep 2017; 7:15738. [PMID: 29146945 PMCID: PMC5691073 DOI: 10.1038/s41598-017-15992-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 10/31/2017] [Indexed: 12/14/2022] Open
Abstract
Direct killing of malignant cells combined with induction of tumour-specific immune responses makes oncolytic vaccines attractive for cancer therapy. We previously developed a heterologous cancer immunization strategy that utilized a replication-defective adenovirus-vectored primary vaccine encoding a tumour antigen followed by boosting with a replication-competent Maraba virus expressing the same antigen. To assess the safety of oncolytic Maraba virus-based booster vaccines and inform the design of clinical trials, we conducted translational studies in cats, which have immune systems that are similar to people and spontaneously develop cancers of comparable types and etiologies. A dose of Maraba virus up to 2.5 × 1011 pfu per cat was well-tolerated, with adverse effects limited to mild, transient pyrexia, weight loss, neutropenia, lymphopenia and thrombocytopenia. Maraba viral genomes were present in some urine, stool and most plasma samples up to one week post-infection, but no infectious viruses were recovered. Post-mortem analysis showed one heart, one lung and all spleen samples contained Maraba virus genomes. No replication-competent viruses were recovered from any tissues. Post-mortem histopathological analyses revealed hyperplasia of lymphoid tissues, but no abnormal lesions were attributed to vaccination. This study demonstrated that Maraba virus-vectored cancer vaccines were well-tolerated and supports their use in treating cats.
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Affiliation(s)
- Jeff Hummel
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, L8S 4L8, Canada
- CANSWERS, Clinical Trial Division, Georgetown, Ontario, L7G 5L8, Canada
| | - Dorothee Bienzle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Annette Morrison
- Central Animal Facility, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Michelle Cieplak
- Central Animal Facility, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Kyle Stephenson
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, L8S 4L8, Canada
| | - Josepha DeLay
- Animal Health Laboratory, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - J Paul Woods
- Department of Clinical Studies, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Brian D Lichty
- McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, L8S 4L8, Canada
| | - Byram W Bridle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, N1G 2W1, Canada.
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43
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Mell LK, Brumund KT, Daniels GA, Advani SJ, Zakeri K, Wright ME, Onyeama SJ, Weisman RA, Sanghvi PR, Martin PJ, Szalay AA. Phase I Trial of Intravenous Oncolytic Vaccinia Virus (GL-ONC1) with Cisplatin and Radiotherapy in Patients with Locoregionally Advanced Head and Neck Carcinoma. Clin Cancer Res 2017; 23:5696-5702. [PMID: 28679776 DOI: 10.1158/1078-0432.ccr-16-3232] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/21/2017] [Accepted: 06/27/2017] [Indexed: 11/16/2022]
Abstract
Purpose: Preclinical models have shown that the effectiveness of GL-ONC1, a modified oncolytic vaccinia virus, is enhanced by radiation and chemotherapy. The purpose of this study was to determine the safety of GL-ONC1 when delivered intravenously with chemoradiotherapy to patients with primary, nonmetastatic head and neck cancer.Experimental Design: Patients with locoregionally advanced unresected, nonmetastatic carcinoma of the head/neck, excluding stage III-IVA p16-positive oropharyngeal cancers, were treated with escalating doses and cycles of intravenous GL-ONC1, along with radiotherapy and chemotherapy. The primary aims were to define the MTD and dose-limiting toxicities, and to recommend a dose for phase II trials.Results: Between May 2012 and December 2014, 19 patients were enrolled. The most frequent adverse reactions included grade 1-2 rigors, fever, fatigue, and rash. Grade 3 adverse reactions included hypotension, mucositis, nausea, and vomiting. In 2 patients, the rash was confirmed as viral in origin by fluorescence imaging and viral plaque assay. In 4 patients, viral presence in tumor was confirmed on midtreatment biopsy by quantitative PCR. In 1 patient, live virus was confirmed in a tongue tumor 7 days after receiving the first dose of virus. The MTD was not reached. With median follow-up of 30 months, 1-year (2-year) progression-free survival and overall survival were 74.4% (64.1%) and 84.6% (69.2%), respectively.Conclusions: Delivery of GL-ONC1 is safe and feasible in patients with locoregionally advanced head/neck cancer undergoing standard chemoradiotherapy. A phase II study is warranted to further investigate this novel treatment strategy. Clin Cancer Res; 23(19); 5696-702. ©2017 AACR.
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Affiliation(s)
- Loren K Mell
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California.
| | - Kevin T Brumund
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of California San Diego, La Jolla, California
| | - Gregory A Daniels
- Center for Personalized Cancer Therapy, and Division of Hematology and Oncology, UCSD Moores Cancer Center, La Jolla, California
| | - Sunil J Advani
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California
| | - Kaveh Zakeri
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California
| | - Mary E Wright
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California
| | - Sara-Jane Onyeama
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California
| | - Robert A Weisman
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of California San Diego, La Jolla, California
| | - Parag R Sanghvi
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California
| | - Peter J Martin
- Department of Otolaryngology, Kaiser Permanente, San Diego, California
| | - Aladar A Szalay
- Center for Translational Radiation Medicine and Imaging, Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California
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Illingworth S, Di Y, Bauzon M, Lei J, Duffy MR, Alvis S, Champion B, Lieber A, Hermiston T, Seymour LW, Beadle J, Fisher K. Preclinical Safety Studies of Enadenotucirev, a Chimeric Group B Human-Specific Oncolytic Adenovirus. Mol Ther Oncolytics 2017; 5:62-74. [PMID: 28480328 PMCID: PMC5415321 DOI: 10.1016/j.omto.2017.03.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 03/18/2017] [Indexed: 11/26/2022] Open
Abstract
Enadenotucirev is an oncolytic group B adenovirus identified by a process of bio-selection for the ability to selectively propagate in and rapidly kill carcinoma cells. It is resistant to inactivation by human blood components, potentially enabling intravenous dosing in patients with metastatic cancer. However, there are no known permissive animal models described for group B adenoviruses that could facilitate a conventional approach to preclinical safety studies. In this manuscript, we describe our tailored preclinical strategy designed to evaluate the key biological properties of enadenotucirev. As enadenotucirev does not replicate in animal cells, a panel of primary human cells was used to evaluate enadenotucirev replication selectivity in vitro, demonstrating that virus genome levels were >100-fold lower in normal cells relative to tumor cells. Acute intravenous tolerability in mice was used to assess virus particle-mediated toxicology and effects on innate immunity. These studies showed that particle toxicity could be ameliorated by dose fractionation, using an initial dose of virus to condition the host such that cytokine responses to subsequent doses were significantly attenuated. This, in turn, supported the initiation of a phase I intravenous clinical trial with a starting dose of 1 × 1010 virus particles given on days 1, 3, and 5.
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Affiliation(s)
| | - Ying Di
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - Maxine Bauzon
- Coagulant Therapeutics, 455 Mission Bay Boulevard South, San Francisco, CA 94158, USA
| | - Janet Lei
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | | | - Simon Alvis
- PsiOxus Therapeutics Ltd., Abingdon OX14 4SD, UK
| | | | - André Lieber
- Division of Medical Genetics, University of Washington, Seattle, WA 98195, USA
| | - Terry Hermiston
- Coagulant Therapeutics, 455 Mission Bay Boulevard South, San Francisco, CA 94158, USA
| | - Len W. Seymour
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - John Beadle
- PsiOxus Therapeutics Ltd., Abingdon OX14 4SD, UK
| | - Kerry Fisher
- PsiOxus Therapeutics Ltd., Abingdon OX14 4SD, UK
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
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Guo ZS, Liu Z, Kowalsky S, Feist M, Kalinski P, Lu B, Storkus WJ, Bartlett DL. Oncolytic Immunotherapy: Conceptual Evolution, Current Strategies, and Future Perspectives. Front Immunol 2017; 8:555. [PMID: 28555136 PMCID: PMC5430078 DOI: 10.3389/fimmu.2017.00555] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/25/2017] [Indexed: 12/17/2022] Open
Abstract
The concept of oncolytic virus (OV)-mediated cancer therapy has been shifted from an operational virotherapy paradigm to an immunotherapy. OVs often induce immunogenic cell death (ICD) of cancer cells, and they may interact directly with immune cells as well to prime antitumor immunity. We and others have developed a number of strategies to further stimulate antitumor immunity and to productively modulate the tumor microenvironment (TME) for potent and sustained antitumor immune cell activity. First, OVs have been engineered or combined with other ICD inducers to promote more effective T cell cross-priming, and in many cases, the breaking of functional immune tolerance. Second, OVs may be armed to express Th1-stimulatory cytokines/chemokines or costimulators to recruit and sustain the potent antitumor immunity into the TME to focus their therapeutic activity within the sites of disease. Third, combinations of OV with immunomodulatory drugs or antibodies that recondition the TME have proven to be highly promising in early studies. Fourth, combinations of OVs with other immunotherapeutic regimens (such as prime-boost cancer vaccines, CAR T cells; armed with bispecific T-cell engagers) have also yielded promising preliminary findings. Finally, OVs have been combined with immune checkpoint blockade, with robust antitumor efficacy being observed in pilot evaluations. Despite some expected hurdles for the rapid translation of OV-based state-of-the-art protocols, we believe that a cohort of these novel approaches will join the repertoire of standard cancer treatment options in the near future.
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Affiliation(s)
- Zong Sheng Guo
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Zuqiang Liu
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Stacy Kowalsky
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mathilde Feist
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Surgery, CCM/CVK, Charité – Universitaetsmedizin Berlin, Berlin, Germany
| | - Pawel Kalinski
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Binfeng Lu
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Walter J. Storkus
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - David L. Bartlett
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Bommareddy PK, Patel A, Hossain S, Kaufman HL. Talimogene Laherparepvec (T-VEC) and Other Oncolytic Viruses for the Treatment of Melanoma. Am J Clin Dermatol 2017; 18:1-15. [PMID: 27988837 DOI: 10.1007/s40257-016-0238-9] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Many mammalian viruses have properties that can be commandeered for the treatment of cancer. These characteristics include preferential infection and replication in tumor cells, the initiation of tumor cell lysis, and the induction of innate and adaptive anti-tumor immunity. Furthermore, viruses can be genetically engineered to reduce pathogenicity and increase immunogenicity resulting in minimally toxic therapeutic agents. Talimogene laherparepvec (T-VEC; Imlygic™), is a genetically modified herpes simplex virus, type 1, and is the first oncolytic virus therapy to be approved for the treatment of advanced melanoma by the US FDA. T-VEC is attenuated by the deletion of the herpes neurovirulence viral genes and enhanced for immunogenicity by the deletion of the viral ICP47 gene. Immunogenicity is further supported by expression of the human granulocyte-macrophage colony-stimulating factor (GM-CSF) gene, which helps promote the priming of T cell responses. T-VEC demonstrated significant improvement in durable response rate, objective response rate, and progression-free survival in a randomized phase III clinical trial for patients with advanced melanoma. This review will discuss the optimal selection of patients for such treatment and describe how therapy is optimally delivered. We will also discuss future directions for oncolytic virus immunotherapy, which will likely include combination T-VEC clinical trials, expansion of T-VEC to other types of non-melanoma skin cancers, and renewed efforts at oncolytic virus drug development with other viruses.
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Falls T, Roy DG, Bell JC, Bourgeois-Daigneault MC. Murine Tumor Models for Oncolytic Rhabdo-Virotherapy. ILAR J 2017; 57:73-85. [PMID: 27034397 DOI: 10.1093/ilar/ilv048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The preclinical optimization and validation of novel treatments for cancer therapy requires the use of laboratory animals. Although in vitro experiments using tumor cell lines and ex vivo treatment of patient tumor samples provide a remarkable first-line tool for the initial study of tumoricidal potential, tumor-bearing animals remain the primary option to study delivery, efficacy, and safety of therapies in the context of a complete tumor microenvironment and functional immune system. In this review, we will describe the use of murine tumor models for oncolytic virotherapy using vesicular stomatitis virus. We will discuss studies using immunocompetent and immunodeficient models with respect to toxicity and therapeutic treatments, as well as the various techniques and tools available to study cancer therapy with Rhabdoviruses.
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Affiliation(s)
- Theresa Falls
- Theresa Falls is a research technician at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada. Dominic Guy Roy is a Ph.D candidate at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a Ph.D candidate in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. John Cameron Bell is a senior researcher at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and professor in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. Marie-Claude Bourgeois-Daigneault is a postdoctoral fellow at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a postdoctoral fellow in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada
| | - Dominic Guy Roy
- Theresa Falls is a research technician at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada. Dominic Guy Roy is a Ph.D candidate at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a Ph.D candidate in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. John Cameron Bell is a senior researcher at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and professor in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. Marie-Claude Bourgeois-Daigneault is a postdoctoral fellow at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a postdoctoral fellow in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada
| | - John Cameron Bell
- Theresa Falls is a research technician at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada. Dominic Guy Roy is a Ph.D candidate at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a Ph.D candidate in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. John Cameron Bell is a senior researcher at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and professor in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. Marie-Claude Bourgeois-Daigneault is a postdoctoral fellow at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a postdoctoral fellow in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada
| | - Marie-Claude Bourgeois-Daigneault
- Theresa Falls is a research technician at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada. Dominic Guy Roy is a Ph.D candidate at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a Ph.D candidate in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. John Cameron Bell is a senior researcher at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and professor in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada. Marie-Claude Bourgeois-Daigneault is a postdoctoral fellow at the Centre for Innovative Cancer Research at Ottawa Hospital Research Institute in Ottawa, Canada, and a postdoctoral fellow in the Biochemistry, Microbiology, and Immunology Department at the University of Ottawa in Ottawa, Canada
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48
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Taking a Stab at Cancer; Oncolytic Virus-Mediated Anti-Cancer Vaccination Strategies. Biomedicines 2017; 5:biomedicines5010003. [PMID: 28536346 PMCID: PMC5423491 DOI: 10.3390/biomedicines5010003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 12/20/2016] [Accepted: 12/22/2016] [Indexed: 12/14/2022] Open
Abstract
Vaccines have classically been used for disease prevention. Modern clinical vaccines are continuously being developed for both traditional use as well as for new applications. Typically thought of in terms of infectious disease control, vaccination approaches can alternatively be adapted as a cancer therapy. Vaccines targeting cancer antigens can be used to induce anti-tumour immunity and have demonstrated therapeutic efficacy both pre-clinically and clinically. Various approaches now exist and further establish the tremendous potential and adaptability of anti-cancer vaccination. Classical strategies include ex vivo-loaded immune cells, RNA- or DNA-based vaccines and tumour cell lysates. Recent oncolytic virus development has resulted in a surge of novel viruses engineered to induce powerful tumour-specific immune responses. In addition to their use as cancer vaccines, oncolytic viruses have the added benefit of being directly cytolytic to cancer cells and thus promote antigen recognition within a highly immune-stimulating tumour microenvironment. While oncolytic viruses are perfectly equipped for efficient immunization, this complicates their use upon previous exposure. Indeed, the host's anti-viral counter-attacks often impair multiple-dosing regimens. In this review we will focus on the use of oncolytic viruses for anti-tumour vaccination. We will explore different strategies as well as ways to circumvent some of their limitations.
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Evgin L, Ilkow CS, Bourgeois-Daigneault MC, de Souza CT, Stubbert L, Huh MS, Jennings VA, Marguerie M, Acuna SA, Keller BA, Lefebvre C, Falls T, Le Boeuf F, Auer RA, Lambris JD, McCart JA, Stojdl DF, Bell JC. Complement inhibition enables tumor delivery of LCMV glycoprotein pseudotyped viruses in the presence of antiviral antibodies. MOLECULAR THERAPY-ONCOLYTICS 2016; 3:16027. [PMID: 27909702 PMCID: PMC5111574 DOI: 10.1038/mto.2016.27] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 12/28/2022]
Abstract
The systemic delivery of therapeutic viruses, such as oncolytic viruses or vaccines, is limited by the generation of neutralizing antibodies. While pseudotyping of rhabdoviruses with the lymphocytic choriomeningitis virus glycoprotein has previously allowed for multiple rounds of delivery in mice, this strategy has not translated to other animal models. For the first time, we provide experimental evidence that antibodies generated against the lymphocytic choriomeningitis virus glycoprotein mediate robust complement-dependent viral neutralization via activation of the classical pathway. We show that this phenotype can be capitalized upon to deliver maraba virus pseudotyped with the lymphocytic choriomeningitis virus glycoprotein in a Fischer rat model in the face of neutralizing antibody through the use of complement modulators. This finding changes the understanding of the humoral immune response to arenaviruses, and also describes methodology to deliver viral vectors to their therapeutic sites of action without the interference of neutralizing antibody.
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Affiliation(s)
- Laura Evgin
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Carolina S Ilkow
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - Marie-Claude Bourgeois-Daigneault
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Lawton Stubbert
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - Michael S Huh
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - Victoria A Jennings
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - Monique Marguerie
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Sergio A Acuna
- Toronto General Research Institute, University Health Network , Toronto, Ontario, Canada
| | - Brian A Keller
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Charles Lefebvre
- Children's Hospital of Eastern Ontario Research Institute , Ottawa, Ontario, Canada
| | - Theresa Falls
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - Fabrice Le Boeuf
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - Rebecca A Auer
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute , Ottawa, Ontario, Canada
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, University of Pennsylvania , Philadelphia, Pennsylvania, USA
| | - J Andrea McCart
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada; Department of Surgery, Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada
| | - David F Stojdl
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada; Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - John C Bell
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
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50
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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.
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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
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