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Lin C, Teng W, Tian Y, Li S, Xia N, Huang C. Immune landscape and response to oncolytic virus-based immunotherapy. Front Med 2024; 18:411-429. [PMID: 38453818 DOI: 10.1007/s11684-023-1048-0] [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: 07/19/2023] [Accepted: 11/15/2023] [Indexed: 03/09/2024]
Abstract
Oncolytic virus (OV)-based immunotherapy has emerged as a promising strategy for cancer treatment, offering a unique potential to selectively target malignant cells while sparing normal tissues. However, the immunosuppressive nature of tumor microenvironment (TME) poses a substantial hurdle to the development of OVs as effective immunotherapeutic agents, as it restricts the activation and recruitment of immune cells. This review elucidates the potential of OV-based immunotherapy in modulating the immune landscape within the TME to overcome immune resistance and enhance antitumor immune responses. We examine the role of OVs in targeting specific immune cell populations, including dendritic cells, T cells, natural killer cells, and macrophages, and their ability to alter the TME by inhibiting angiogenesis and reducing tumor fibrosis. Additionally, we explore strategies to optimize OV-based drug delivery and improve the efficiency of OV-mediated immunotherapy. In conclusion, this review offers a concise and comprehensive synopsis of the current status and future prospects of OV-based immunotherapy, underscoring its remarkable potential as an effective immunotherapeutic agent for cancer treatment.
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Affiliation(s)
- Chaolong Lin
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen, 361102, China
| | - Wenzhong Teng
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen, 361102, China
| | - Yang Tian
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen, 361102, China
| | - Shaopeng Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen, 361102, China
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen, 361102, China.
| | - Chenghao Huang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen, 361102, China.
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2
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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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Higgins TA, Patton DJ, Shimko-Lofano IM, Eller TL, Molinari R, Sandey M, Ismail A, Smith BF, Agarwal P. The Development and Characterization of a Next-Generation Oncolytic Virus Armed with an Anti-PD-1 sdAb for Osteosarcoma Treatment In Vitro. Cells 2024; 13:351. [PMID: 38391964 PMCID: PMC10886739 DOI: 10.3390/cells13040351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/22/2024] [Accepted: 02/15/2024] [Indexed: 02/24/2024] Open
Abstract
Osteosarcoma (OS) is a primary bone malignancy characterized by an aggressive nature, limited treatment options, low survival rate, and poor patient prognosis. Conditionally replicative adenoviruses (CRAds) armed with immune checkpoint inhibitors hold great potential for enhanced therapeutic efficacy. The present study aims to investigate the anti-tumor efficacy of CAV2-AU-M2, a CAV2-based CRAd armed with an anti-PD-1 single-domain antibody (sdAb), against OS cell lines in vitro. The infection, conditional replication, cytopathic effects, and cytotoxicity of CAV2-AU-M2 were tested in four different OS cell lines in two-dimensional (2D) and three-dimensional (3D) cell cultures. CAV2-AU-M2 showed selective replication in the OS cells and induced efficient tumor cell lysis and death. Moreover, CAV2-AU-M2 produced an anti-PD-1 sdAb that demonstrated effective binding to the PD-1 receptors. This study demonstrated the first CRAd armed with an anti-PD-1 sdAb. This combined approach of two distinct immunotherapies is intended to enhance the anti-tumor immune response in the tumor microenvironment.
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Affiliation(s)
- Theresa A. Higgins
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
| | - Daniel J. Patton
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
| | - Isabella M. Shimko-Lofano
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
| | - Timothy L. Eller
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
| | - Roberto Molinari
- Department of Mathematics and Statistics, College of Sciences and Mathematics, Auburn University, Auburn, AL 36849, USA;
| | - Maninder Sandey
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
| | - Aliaa Ismail
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
- Department of Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 8366004, Egypt
| | - Bruce F. Smith
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
| | - Payal Agarwal
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA; (T.A.H.); (D.J.P.); (I.M.S.-L.); (T.L.E.); (M.S.); (A.I.); (B.F.S.)
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
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Chen L, Zuo M, Zhou Q, Wang Y. Oncolytic virotherapy in cancer treatment: challenges and optimization prospects. Front Immunol 2023; 14:1308890. [PMID: 38169820 PMCID: PMC10758479 DOI: 10.3389/fimmu.2023.1308890] [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: 10/07/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
Oncolytic viruses (OVs) are emerging cancer therapeutics that offer a multifaceted therapeutic platform for the benefits of replicating and lysing tumor cells, being engineered to express transgenes, modulating the tumor microenvironment (TME), and having a tolerable safety profile that does not overlap with other cancer therapeutics. The mechanism of OVs combined with other antitumor agents is based on immune-mediated attack resistance and might benefit patients who fail to achieve durable responses after immune checkpoint inhibitor (ICI) treatment. In this Review, we summarize data on the OV mechanism and limitations of monotherapy, which are currently in the process of combination partner development, especially with ICIs. We discuss some of the hurdles that have limited the preclinical and clinical development of OVs. We also describe the available data and provide guidance for optimizing OVs in clinical practice, as well as a summary of approved and promising novel OVs with clinical indications.
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Affiliation(s)
- Lingjuan Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, China
| | - Mengsi Zuo
- Department of Oncology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Qin Zhou
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), College of Bioengineering, Hubei University of Technology, Wuhan, China
| | - Yang Wang
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), College of Bioengineering, Hubei University of Technology, Wuhan, China
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Xu F, Wang X, Huang Y, Zhang X, Sun W, Du Y, Xu Z, Kou H, Zhu S, Liu C, Wei X, Li X, Jiang Q, Xu Y. Prostate cancer cell-derived exosomal IL-8 fosters immune evasion by disturbing glucolipid metabolism of CD8 + T cell. Cell Rep 2023; 42:113424. [PMID: 37963015 DOI: 10.1016/j.celrep.2023.113424] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/12/2023] [Accepted: 10/27/2023] [Indexed: 11/16/2023] Open
Abstract
Depletion of CD8+ T cells is a major obstacle in immunotherapy; however, the relevant mechanisms remain largely unknown. Here, we showed that prostate cancer (PCa) cell-derived exosomes hamper CD8+ T cell function by transporting interleukin-8 (IL-8). Compared to the low IL-8 levels detected in immune cells, PCa cells secreted the abundance of IL-8 and further accumulated in exosomes. The delivery of PCa cell-derived exosomes into CD8+ T cells exhausted the cells through enhanced starvation. Mechanistically, exosomal IL-8 overactivated PPARα in recipient cells, thereby decreasing glucose utilization by downregulating GLUT1 and HK2 but increasing fatty acid catabolism via upregulation of CPT1A and ACOX1. PPARα further activates uncoupling protein 1 (UCP1), leading to fatty acid catabolism for thermogenesis rather than ATP synthesis. Consequently, inhibition of PPARα and UCP1 restores CD8+ T cell proliferation by counteracting the effect of exosomal IL-8. This study revealed that the tumor exosome-activated IL-8-PPARα-UCP1 axis harms tumor-infiltrating CD8+ T cells by interfering with energy metabolism.
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Affiliation(s)
- Fan Xu
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China; Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting Road, Nanjing 210009, P.R. China
| | - Xiumei Wang
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China; Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing 210006, P.R. China
| | - Ying Huang
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China
| | - Xiaoqian Zhang
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China
| | - Wenbo Sun
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting Road, Nanjing 210009, P.R. China
| | - Yuanyuan Du
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting Road, Nanjing 210009, P.R. China
| | - Zhi Xu
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China
| | - Hengyuan Kou
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China; Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P.R. China
| | - Shuyi Zhu
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China; Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P.R. China
| | - Caidong Liu
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing 210006, P.R. China
| | - Xiaowei Wei
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing 210006, P.R. China
| | - Xiao Li
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting Road, Nanjing 210009, P.R. China.
| | - Qin Jiang
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China.
| | - Yong Xu
- Research Center, Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing 210029, P.R. China; Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting Road, Nanjing 210009, P.R. China.
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Ghasemi M, Abbasi L, Ghanbari Naeini L, Kokabian P, Nameh Goshay Fard N, Givtaj N. Dendritic cells and natural killer cells: The road to a successful oncolytic virotherapy. Front Immunol 2023; 13:950079. [PMID: 36703982 PMCID: PMC9871831 DOI: 10.3389/fimmu.2022.950079] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 09/02/2022] [Indexed: 01/11/2023] Open
Abstract
Every type of cancer tissue is theoretically more vulnerable to viral infection. This natural proclivity has been harnessed as a new anti-cancer therapy by employing oncolytic viruses (OVs) to selectively infect and destroy cancer cells while providing little or no harm with no toxicity to the host. Whereas the primary oncolytic capabilities of OVs initially sparked the greatest concern, the predominant focus of research is on the association between OVs and the host immune system. Numerous OVs are potent causal agents of class I MHC pathway-related chemicals, enabling early tumor/viral immune recognition and cytokine-mediated response. The modified OVs have been studied for their ability to bind to dendritic cells (DCs) by expressing growth factors, chemokines, cytokines, and defensins inside the viral genome. OVs, like reovirus, can directly infect DCs, causing them to release chemokines and cytokines that attract and excite natural killer (NK) cells. In addition, OVs can directly alter cancer cells' sensitivity to NK by altering the expression levels of NK cell activators and inhibitors on cancerous cells. Therefore, NK cells and DCs in modulating the therapeutic response should be considered when developing and improving future OV-based therapeutics, whether modified to express transgenes or used in combination with other drugs/immunotherapies. Concerning the close relationship between NK cells and DCs in the potential of OVs to kill tumor cells, we explore how DCs and NK cells in tumor microenvironment affect oncolytic virotherapy and summarize additional information about the interaction mentioned above in detail in this work.
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Affiliation(s)
- Matin Ghasemi
- Faculty of Medicine, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Laleh Abbasi
- Guilan University of Medical Sciences, Rasht, Iran
| | | | - Pajman Kokabian
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Najmeh Nameh Goshay Fard
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nozar Givtaj
- Rajaei Cardiovascular, Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran,*Correspondence: Nozar Givtaj,
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7
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Wang G, Liu Y, Liu S, Lin Y, Hu C. Oncolyic Virotherapy for Prostate Cancer: Lighting a Fire in Winter. Int J Mol Sci 2022; 23:ijms232012647. [PMID: 36293504 PMCID: PMC9603894 DOI: 10.3390/ijms232012647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 11/11/2022] Open
Abstract
As the most common cancer of the genitourinary system, prostate cancer (PCa) is a global men's health problem whose treatments are an urgent research issue. Treatment options for PCa include active surveillance (AS), surgery, endocrine therapy, chemotherapy, radiation therapy, immunotherapy, etc. However, as the cancer progresses, the effectiveness of treatment options gradually decreases, especially in metastatic castration-resistant prostate cancer (mCRPC), for which there are fewer therapeutic options and which have a shorter survival period and worse prognosis. For this reason, oncolytic viral therapy (PV), with its exceptional properties of selective tumor killing, relatively good safety in humans, and potential for transgenic delivery, has attracted increasing attention as a new form of anti-tumor strategy for PCa. There is growing evidence that OV not only kills tumor cells directly by lysis but can also activate anticancer immunity by acting on the tumor microenvironment (TME), thereby preventing tumor growth. In fact, evidence of the efficacy of this strategy has been observed since the late 19th century. However, subsequently, interest waned. The renewed interest in this therapy was due to advances in biotechnological methods and innovations at the end of the 20th century, which was also the beginning of PCa therapy with OV. Moreover, in combination with chemotherapy, radiotherapy, gene therapy or immunotherapy, OV viruses can have a wide range of applications and can provide an effective therapeutic result in the treatment of PCa.
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Affiliation(s)
- Gongwei Wang
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Ying Liu
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Shuoru Liu
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Yuan Lin
- Department of Pharmacology, Sun Yat-sen University, Guangzhou 528478, China
| | - Cheng Hu
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
- Correspondence:
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8
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Tian Y, Xie D, Yang L. Engineering strategies to enhance oncolytic viruses in cancer immunotherapy. Signal Transduct Target Ther 2022; 7:117. [PMID: 35387984 PMCID: PMC8987060 DOI: 10.1038/s41392-022-00951-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Oncolytic viruses (OVs) are emerging as potentially useful platforms in treatment methods for patients with tumors. They preferentially target and kill tumor cells, leaving healthy cells unharmed. In addition to direct oncolysis, the essential and attractive aspect of oncolytic virotherapy is based on the intrinsic induction of both innate and adaptive immune responses. To further augment this efficacious response, OVs have been genetically engineered to express immune regulators that enhance or restore antitumor immunity. Recently, combinations of OVs with other immunotherapies, such as immune checkpoint inhibitors (ICIs), chimeric antigen receptors (CARs), antigen-specific T-cell receptors (TCRs) and autologous tumor-infiltrating lymphocytes (TILs), have led to promising progress in cancer treatment. This review summarizes the intrinsic mechanisms of OVs, describes the optimization strategies for using armed OVs to enhance the effects of antitumor immunity and highlights rational combinations of OVs with other immunotherapies in recent preclinical and clinical studies.
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Affiliation(s)
- Yaomei Tian
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China.,College of Bioengineering, Sichuan University of Science & Engineering, No. 519, Huixing Road, 643000, Zigong, Sichuan, People's Republic of China
| | - Daoyuan Xie
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China
| | - Li Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China.
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9
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Deng H, Xiao B, Huang Y, Weng K, Chen J, Li K, Wu H, Luo S, Hao W. The Combined Use of Orf Virus and PAK4 Inhibitor Exerts Anti-tumor Effect in Breast Cancer. Front Microbiol 2022; 13:845259. [PMID: 35401439 PMCID: PMC8984157 DOI: 10.3389/fmicb.2022.845259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/24/2022] [Indexed: 12/24/2022] Open
Abstract
The parapoxvirus Orf virus (ORFV) has long been recognized as one of the valuable vectors in researches of oncolytic virus. In order to develop a potential therapeutic strategy for breast cancer based on the oncolytic virotherapy via ORFV, firstly we explore the oncolytic effects of ORFV. Our research showed that ORFV exerts anti-tumor effects in vitro by inducing breast cancer cell G2/M phase arrest and cell apoptosis. In vivo experiments were carried out, in which we treated 4T1 tumor-bearing BALB/C mice via intratumoral injection of ORFV. ORFV can exert anti-tumor activity by regulating tumor microenvironment (TME) and inducing a host immune response plus directly oncolytic effect. The CRISPR-Cas9 knockout library targeting 507 kinases was used to screen out PAK4, which is beneficial to the anti-tumor effect of ORFV on breast cancer cells. PF-3758309 is a potent PAK4-targeted inhibitor. Co-using of ORFV and PF-3758309 as a combination treatment produces its anti-tumor effects through inhibition of cell viability, induction of apoptosis and suppression of cell migration and invasion in vitro. The results of in vivo experiments showed that the tumor growth of mice in the combination treatment group was significantly inhibited, which proved that the combination treatment exerts an effective anti-tumor effect in vivo. In summary, we have clarified the oncolytic effect of ORFV on breast cancer, and found that the combination of ORFV and PAK4 inhibitor can effectively improve the oncolytic effect of ORFV. We hope our research could provide a new idea for the development of new treatment strategies for breast cancer.
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Affiliation(s)
- Hao Deng
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
| | - Bin Xiao
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | - Yinger Huang
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
| | - Kongyan Weng
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
- Department of Transfusion Medicine, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jialing Chen
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
| | - Kun Li
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
| | - Hongfeng Wu
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
| | - Shuhong Luo
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Department of Laboratory Medicine, School of Medicine, Foshan University, Foshan, China
- *Correspondence: Shuhong Luo,
| | - Wenbo Hao
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
- Key Laboratory of Antibody Engineering of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Southern Medical University, Guangzhou, China
- Wenbo Hao,
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10
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van de Merbel AF, van der Horst G, van der Mark MH, Bots STF, van den Wollenberg DJM, de Ridder CMA, Stuurman D, Aalders T, Erkens-Schulz S, van Montfoort N, Karthaus WR, Mehra N, Smits M, Schalken JA, van Weerden WM, Hoeben RC, van der Pluijm G. Reovirus mutant jin-3 exhibits lytic and immune-stimulatory effects in preclinical human prostate cancer models. Cancer Gene Ther 2022; 29:793-802. [PMID: 34135475 PMCID: PMC9209329 DOI: 10.1038/s41417-021-00360-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/08/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023]
Abstract
Treatment of castration-resistant prostate cancer remains a challenging clinical problem. Despite the promising effects of immunotherapy in other solid cancers, prostate cancer has remained largely unresponsive. Oncolytic viruses represent a promising therapeutic avenue, as oncolytic virus treatment combines tumour cell lysis with activation of the immune system and mounting of effective anti-tumour responses. Mammalian Orthoreoviruses are non-pathogenic human viruses with a preference of lytic replication in human tumour cells. In this study, we evaluated the oncolytic efficacy of the bioselected oncolytic reovirus mutant jin-3 in multiple human prostate cancer models. The jin-3 reovirus displayed efficient infection, replication, and anti-cancer responses in 2D and 3D prostate cancer models, as well as in ex vivo cultured human tumour slices. In addition, the jin-3 reovirus markedly reduced the viability and growth of human cancer cell lines and patient-derived xenografts. The infection induced the expression of mediators of immunogenic cell death, interferon-stimulated genes, and inflammatory cytokines. Taken together, our data demonstrate that the reovirus mutant jin-3 displays tumour tropism, and induces potent oncolytic and immunomodulatory responses in human prostate cancer models. Therefore, jin-3 reovirus represents an attractive candidate for further development as oncolytic agent for treatment of patients with aggressive localised or advanced prostate cancer.
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Affiliation(s)
- Arjanneke F. van de Merbel
- grid.10419.3d0000000089452978Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
| | - Geertje van der Horst
- grid.10419.3d0000000089452978Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
| | - Maaike H. van der Mark
- grid.10419.3d0000000089452978Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
| | - Selas T. F. Bots
- grid.10419.3d0000000089452978Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Diana J. M. van den Wollenberg
- grid.10419.3d0000000089452978Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Corrina M. A. de Ridder
- grid.5645.2000000040459992XDepartment of Experimental Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Debra Stuurman
- grid.5645.2000000040459992XDepartment of Experimental Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Tilly Aalders
- grid.10417.330000 0004 0444 9382Department of Urology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Sigrun Erkens-Schulz
- grid.5645.2000000040459992XDepartment of Experimental Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Nadine van Montfoort
- grid.10419.3d0000000089452978Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Wouter R. Karthaus
- grid.51462.340000 0001 2171 9952Human Pathology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Niven Mehra
- grid.10417.330000 0004 0444 9382Department of Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Minke Smits
- grid.10417.330000 0004 0444 9382Department of Medical Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jack A. Schalken
- grid.10417.330000 0004 0444 9382Department of Urology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wytske M. van Weerden
- grid.5645.2000000040459992XDepartment of Experimental Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Rob C. Hoeben
- grid.10419.3d0000000089452978Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Gabri van der Pluijm
- grid.10419.3d0000000089452978Department of Urology, Leiden University Medical Center, Leiden, The Netherlands
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11
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Ban W, Guan J, Huang H, He Z, Sun M, Liu F, Sun J. Emerging systemic delivery strategies of oncolytic viruses: A key step toward cancer immunotherapy. NANO RESEARCH 2022; 15:4137-4153. [PMID: 35194488 PMCID: PMC8852960 DOI: 10.1007/s12274-021-4031-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 05/16/2023]
Abstract
Oncolytic virotherapy (OVT) is a novel type of immunotherapy that induces anti-tumor responses through selective self-replication within cancer cells and oncolytic virus (OV)-mediated immunostimulation. Notably, talimogene laherparepvec (T-Vec) developed by the Amgen company in 2015, is the first FDA-approved OV product to be administered via intratumoral injection and has been the most successful OVT treatment. However, the systemic administration of OVs still faces huge challenges, including in vivo pre-existing neutralizing antibodies and poor targeting delivery efficacy. Recently, state-of-the-art progress has been made in the development of systemic delivery of OVs, which demonstrates a promising step toward broadening the scope of cancer immunotherapy and improving the clinical efficacy of OV delivery. Herein, this review describes the general characteristics of OVs, focusing on the action mechanisms of OVs as well as the advantages and disadvantages of OVT. The emerging multiple systemic administration approaches of OVs are summarized in the past five years. In addition, the combination treatments between OVT and traditional therapies (chemotherapy, thermotherapy, immunotherapy, and radiotherapy, etc.) are highlighted. Last but not least, the future prospects and challenges of OVT are also discussed, with the aim of facilitating medical researchers to extensively apply the OVT in the cancer therapy.
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Affiliation(s)
- Weiyue Ban
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Jianhuan Guan
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Hanwei Huang
- Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University; Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, China Medical University, Ministry of Education, Shenyang, 110016 China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Mengchi Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
| | - Funan Liu
- Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University; Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, China Medical University, Ministry of Education, Shenyang, 110016 China
| | - Jin Sun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016 China
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12
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Mao C, Ding Y, Xu N. A Double-Edged Sword Role of Cytokines in Prostate Cancer Immunotherapy. Front Oncol 2021; 11:688489. [PMID: 34868907 PMCID: PMC8635015 DOI: 10.3389/fonc.2021.688489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 10/25/2021] [Indexed: 01/02/2023] Open
Abstract
Prostate cancer (PC) is one of the most common malignancies among men and is the second leading cause of cancer death. PC immunotherapy has taken relatively successful steps in recent years, and these treatments are still being developed and tested. Evidence suggests that immunotherapy using cytokines as essential mediators in the immune system may help treat cancer. It has been shown that cytokines play an important role in anti-tumor defense. On the other hand, other cytokines can also favor the tumor and suppress anti-tumor responses. Moreover, the dose of cytokine in cancer cytokine-based immunotherapy, as well as the side effects of high doses, can also affect the outcomes of treatment. Cytokines can also be determinative in the outcome of other immunotherapy methods used in PC. In this review, the role of cytokines in the pathogenesis of cancer and their impacts on the main types of immunotherapies in the treatment of PC are discussed.
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Affiliation(s)
- Chenyu Mao
- Department of Medical Oncology Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yongfeng Ding
- Department of Medical Oncology Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Nong Xu
- Department of Medical Oncology Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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13
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Senekal NS, Mahasa KJ, Eladdadi A, de Pillis L, Ouifki R. Natural Killer Cells Recruitment in Oncolytic Virotherapy: A Mathematical Model. Bull Math Biol 2021; 83:75. [PMID: 34008149 DOI: 10.1007/s11538-021-00903-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 04/20/2021] [Indexed: 01/17/2023]
Abstract
In this paper, we investigate how natural killer (NK) cell recruitment to the tumor microenvironment (TME) affects oncolytic virotherapy. NK cells play a major role against viral infections. They are, however, known to induce early viral clearance of oncolytic viruses, which hinders the overall efficacy of oncolytic virotherapy. Here, we formulate and analyze a simple mathematical model of the dynamics of the tumor, OV and NK cells using currently available preclinical information. The aim of this study is to characterize conditions under which the synergistic balance between OV-induced NK responses and required viral cytopathicity may or may not result in a successful treatment. In this study, we found that NK cell recruitment to the TME must take place neither too early nor too late in the course of OV infection so that treatment will be successful. NK cell responses are most influential at either early (partly because of rapid response of NK cells to viral infections or antigens) or later (partly because of antitumoral ability of NK cells) stages of oncolytic virotherapy. The model also predicts that: (a) an NK cell response augments oncolytic virotherapy only if viral cytopathicity is weak; (b) the recruitment of NK cells modulates tumor growth; and (c) the depletion of activated NK cells within the TME enhances the probability of tumor escape in oncolytic virotherapy. Taken together, our model results demonstrate that OV infection is crucial, not just to cytoreduce tumor burden, but also to induce the stronger NK cell response necessary to achieve complete or at least partial tumor remission. Furthermore, our modeling framework supports combination therapies involving NK cells and OV which are currently used in oncolytic immunovirotherapy to treat several cancer types.
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Affiliation(s)
- Noma Susan Senekal
- Department of Mathematics and Computer Science, National University of Lesotho, Roma, Maseru, Lesotho.
| | - Khaphetsi Joseph Mahasa
- Department of Mathematics and Computer Science, National University of Lesotho, Roma, Maseru, Lesotho
| | | | | | - Rachid Ouifki
- Department of Mathematics and Applied Mathematics, University of Pretoria, Pretoria, South Africa
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14
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Annels NE, Simpson GR, Denyer M, Arif M, Coffey M, Melcher A, Harrington K, Vile R, Pandha H. Oncolytic Reovirus-Mediated Recruitment of Early Innate Immune Responses Reverses Immunotherapy Resistance in Prostate Tumors. Mol Ther Oncolytics 2021; 20:434-446. [PMID: 33665363 PMCID: PMC7900644 DOI: 10.1016/j.omto.2020.09.010] [Citation(s) in RCA: 13] [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: 04/29/2020] [Accepted: 09/30/2020] [Indexed: 02/07/2023] Open
Abstract
Prostate cancers are considered "cold" tumors characterized by minimal T cell infiltrates, absence of a type I interferon (IFN) signature, and the presence of immunosuppressive cells. This non-inflamed phenotype is likely responsible for the lack of sensitivity of prostate cancer patients to immune checkpoint blockade (ICB) therapy. Oncolytic virus therapy can potentially overcome this resistance to immunotherapy in prostate cancers by transforming cold tumors into "hot," immune cell-infiltrated tumors. We investigated whether the combination of intratumoral oncolytic reovirus, followed by targeted blockade of Programmed cell death protein 1 (PD-1) checkpoint inhibition and/or the immunomodulatory CD73/Adenosine system can enhance anti-tumor immunity. Treatment of subcutaneous TRAMP-C2 prostate tumors with combined intratumoral reovirus and anti-PD-1 or anti-CD73 antibody significantly enhanced survival of mice compared with reovirus or either antibody therapy alone. Only combination therapy led to rejection of pre-established tumors and protection from tumor re-challenge. This therapeutic effect was dependent on CD4+ T cells and natural killer (NK) cells. NanoString immune profiling of tumors confirmed that reovirus increased tumor immune cell infiltration and revealed an upregulation of the immune-regulatory receptor, B- and T-lymphocyte attenuator (BTLA). This expression of BTLA on innate antigen-presenting cells (APCs) and its ligand, Herpesvirus entry mediator (HVEM), on T cells from reovirus-infected tumors was in keeping with a role for the HVEM-BTLA pathway in promoting the potent anti-tumor memory response observed.
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Affiliation(s)
- Nicola E. Annels
- Targeted Cancer Therapy, Department of Clinical and Experimental Medicine, Leggett Building, University of Surrey, Guildford, Surrey GU2 7WG, UK
| | - Guy R. Simpson
- Targeted Cancer Therapy, Department of Clinical and Experimental Medicine, Leggett Building, University of Surrey, Guildford, Surrey GU2 7WG, UK
| | - Mick Denyer
- Targeted Cancer Therapy, Department of Clinical and Experimental Medicine, Leggett Building, University of Surrey, Guildford, Surrey GU2 7WG, UK
| | - Mehreen Arif
- Targeted Cancer Therapy, Department of Clinical and Experimental Medicine, Leggett Building, University of Surrey, Guildford, Surrey GU2 7WG, UK
| | - Matt Coffey
- Oncolytics Biotech, Inc., 210, 1167 Kensington Crescent NW Calgary, AB T2N 1X7, Canada
| | - Alan Melcher
- Translational Immunotherapy Team, The Institute of Cancer Research, 237 Fulham Road, London SW6 6JB, UK
| | - Kevin Harrington
- Targeted Therapy Team, The Institute of Cancer Research, 237 Fulham Road, London SW6 6JB, UK
| | - Richard Vile
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Hardev Pandha
- Targeted Cancer Therapy, Department of Clinical and Experimental Medicine, Leggett Building, University of Surrey, Guildford, Surrey GU2 7WG, UK
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15
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Gebremeskel S, Nelson A, Walker B, Oliphant T, Lobert L, Mahoney D, Johnston B. Natural killer T cell immunotherapy combined with oncolytic vesicular stomatitis virus or reovirus treatments differentially increases survival in mouse models of ovarian and breast cancer metastasis. J Immunother Cancer 2021; 9:e002096. [PMID: 33722907 PMCID: PMC7970295 DOI: 10.1136/jitc-2020-002096] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Oncolytic viruses reduce tumor burden in animal models and have generated promising results in clinical trials. However, it is likely that oncolytic viruses will be more effective when used in combination with other therapies. Current therapeutic approaches, including chemotherapeutics, come with dose-limiting toxicities. Another option is to combine oncolytic viruses with immunotherapeutic approaches. METHODS Using experimental models of metastatic 4T1 breast cancer and ID8 ovarian peritoneal carcinomatosis, we examined natural killer T (NKT) cell-based immunotherapy in combination with recombinant oncolytic vesicular stomatitis virus (VSV) or reovirus. 4T1 mammary carcinoma cells or ID8 ovarian cancer cells were injected into syngeneic mice. Tumor-bearing mice were treated with VSV or reovirus followed by activation of NKT cells via the intravenous administration of autologous dendritic cells loaded with the glycolipid antigen α-galactosylceramide. The effects of VSV and reovirus on immunogenic cell death (ICD), cell viability and immunogenicity were tested in vitro. RESULTS VSV or reovirus treatments followed by NKT cell activation mediated greater survival in the ID8 model than individual therapies. The regimen was less effective when the treatment order was reversed, delivering virus treatments after NKT cell activation. In the 4T1 model, VSV combined with NKT cell activation increased overall survival and decreased metastatic burden better than individual treatments. In contrast, reovirus was not effective on its own or in combination with NKT cell activation. In vitro, VSV killed a panel of tumor lines better than reovirus. VSV infection also elicited greater increases in mRNA transcripts for proinflammatory cytokines, chemokines, and antigen presentation machinery compared with reovirus. Oncolytic VSV also induced the key hallmarks of ICD (calreticulin mobilization, plus release of ATP and HMGB1), while reovirus only mobilized calreticulin. CONCLUSION Taken together, these results demonstrate that oncolytic VSV and NKT cell immunotherapy can be effectively combined to decrease tumor burden in models of metastatic breast and ovarian cancers. Oncolytic VSV and reovirus induced differential responses in our models which may relate to differences in virus activity or tumor susceptibility.
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Affiliation(s)
- Simon Gebremeskel
- Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Adam Nelson
- Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Brynn Walker
- Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Tora Oliphant
- Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Lynnea Lobert
- Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Douglas Mahoney
- Department of Microbiology, Immunology & Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Brent Johnston
- Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
- Beatrice Hunter Cancer Research Institute, Halifax, Nova Scotia, Canada
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16
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Hu HJ, Liang X, Li HL, Du CM, Hao JL, Wang HY, Gu JF, Ni AM, Sun LY, Xiao J, Hu JQ, Yuan H, Dai YS, Jin XT, Zhang KJ, Liu XY. The armed oncolytic adenovirus ZD55-IL-24 eradicates melanoma by turning the tumor cells from the self-state into the nonself-state besides direct killing. Cell Death Dis 2020; 11:1022. [PMID: 33257647 PMCID: PMC7705698 DOI: 10.1038/s41419-020-03223-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 02/07/2023]
Abstract
ZD55-IL-24 is similar but superior to the oncolytic adenovirus ONYX-015, yet the exact mechanism underlying the observed therapeutic effect is still not well understood. Here we sought to elucidate the underlying antitumor mechanism of ZD55-IL-24 in both immunocompetent and immunocompromised mouse model. We find that ZD55-IL-24 eradicates established melanoma in B16-bearing immunocompetent mouse model not through the classic direct killing pathway, but mainly through the indirect pathway of inducing systemic antitumor immunity. Inconsistent with the current prevailing view, our further results suggest that ZD55-IL-24 can induce antitumor immunity in B16-bearing immunocompetent mouse model in fact not due to its ability to lyse tumor cells and release the essential elements, such as tumor-associated antigens (TAAs), but due to its ability to put a “nonself” label in tumor cells and then turn the tumor cells from the “self” state into the “nonself” state without tumor cell death. The observed anti-melanoma efficacy of ZD55-IL-24 in B16-bearing immunocompetent mouse model was practically caused only by the viral vector. In addition, we also notice that ZD55-IL-24 can inhibit tumor growth in B16-bearing immunocompetent mouse model through inhibiting angiogenesis, despite it plays only a minor role. In contrast to B16-bearing immunocompetent mouse model, ZD55-IL-24 eliminates established melanoma in A375-bearing immunocompromised mouse model mainly through the classic direct killing pathway, but not through the antitumor immunity pathway and anti-angiogenesis pathway. These findings let us know ZD55-IL-24 more comprehensive and profound, and provide a sounder theoretical foundation for its future modification and drug development.
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Affiliation(s)
- Hai-Jun Hu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiu Liang
- School of Life Sciences and Technology, Tongji University, 200092, Shanghai, China
| | - Hai-Lang Li
- Department of Pharmacy, Xiamen Medical College, 361023, Xiamen, China
| | - Chun-Ming Du
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Jia-Li Hao
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Huai-Yuan Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jin-Fa Gu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Ai-Min Ni
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Lan-Ying Sun
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Jing Xiao
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jin-Qing Hu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Hao Yuan
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Yan-Song Dai
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Xiao-Ting Jin
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Kang-Jian Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China.
| | - Xin-Yuan Liu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, 200031, Shanghai, China.
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17
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Müller L, Berkeley R, Barr T, Ilett E, Errington-Mais F. Past, Present and Future of Oncolytic Reovirus. Cancers (Basel) 2020; 12:E3219. [PMID: 33142841 PMCID: PMC7693452 DOI: 10.3390/cancers12113219] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022] Open
Abstract
Oncolytic virotherapy (OVT) has received significant attention in recent years, especially since the approval of talimogene Laherparepvec (T-VEC) in 2015 by the Food and Drug administration (FDA). Mechanistic studies of oncolytic viruses (OVs) have revealed that most, if not all, OVs induce direct oncolysis and stimulate innate and adaptive anti-tumour immunity. With the advancement of tumour modelling, allowing characterisation of the effects of tumour microenvironment (TME) components and identification of the cellular mechanisms required for cell death (both direct oncolysis and anti-tumour immune responses), it is clear that a "one size fits all" approach is not applicable to all OVs, or indeed the same OV across different tumour types and disease locations. This article will provide an unbiased review of oncolytic reovirus (clinically formulated as pelareorep), including the molecular and cellular requirements for reovirus oncolysis and anti-tumour immunity, reports of pre-clinical efficacy and its overall clinical trajectory. Moreover, as it is now abundantly clear that the true potential of all OVs, including reovirus, will only be reached upon the development of synergistic combination strategies, reovirus combination therapeutics will be discussed, including the limitations and challenges that remain to harness the full potential of this promising therapeutic agent.
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18
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Zhou X, Qu M, Tebon P, Jiang X, Wang C, Xue Y, Zhu J, Zhang S, Oklu R, Sengupta S, Sun W, Khademhosseini A. Screening Cancer Immunotherapy: When Engineering Approaches Meet Artificial Intelligence. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001447. [PMID: 33042756 PMCID: PMC7539186 DOI: 10.1002/advs.202001447] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/16/2020] [Indexed: 02/05/2023]
Abstract
Immunotherapy is a class of promising anticancer treatments that has recently gained attention due to surging numbers of FDA approvals and extensive preclinical studies demonstrating efficacy. Nevertheless, further clinical implementation has been limited by high variability in patient response to different immunotherapeutic agents. These treatments currently do not have reliable predictors of efficacy and may lead to side effects. The future development of additional immunotherapy options and the prediction of patient-specific response to treatment require advanced screening platforms associated with accurate and rapid data interpretation. Advanced engineering approaches ranging from sequencing and gene editing, to tumor organoids engineering, bioprinted tissues, and organs-on-a-chip systems facilitate the screening of cancer immunotherapies by recreating the intrinsic and extrinsic features of a tumor and its microenvironment. High-throughput platform development and progress in artificial intelligence can also improve the efficiency and accuracy of screening methods. Here, these engineering approaches in screening cancer immunotherapies are highlighted, and a discussion of the future perspectives and challenges associated with these emerging fields to further advance the clinical use of state-of-the-art cancer immunotherapies are provided.
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Affiliation(s)
- Xingwu Zhou
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
- Department of Chemical and Biomolecular EngineeringHenry Samueli School of Engineering and Applied SciencesUniversity of California, Los AngelesLos AngelesCA90095USA
| | - Moyuan Qu
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengdu610041China
| | - Peyton Tebon
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
| | - Xing Jiang
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
- School of NursingNanjing University of Chinese MedicineNanjing210023China
| | - Canran Wang
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
| | - Yumeng Xue
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
| | - Jixiang Zhu
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
- Department of Biomedical EngineeringSchool of Basic Medical SciencesGuangzhou Medical UniversityGuangzhou511436China
| | - Shiming Zhang
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
| | - Rahmi Oklu
- Minimally Invasive Therapeutics LaboratoryDivision of Vascular and Interventional RadiologyMayo ClinicPhoenixAZ85054USA
| | - Shiladitya Sengupta
- Harvard–Massachusetts Institute of Technology Division of Health Sciences and TechnologyHarvard Medical SchoolBostonMA02115USA
| | - Wujin Sun
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
| | - Ali Khademhosseini
- Department of BioengineeringUniversity of California, Los AngelesLos AngelesCA90095USA
- Center for Minimally Invasive TherapeuticsCalifornia NanoSystems InstituteUniversity of California, Los AngelesLos AngelesCA90095USA
- Department of Chemical and Biomolecular EngineeringHenry Samueli School of Engineering and Applied SciencesUniversity of California, Los AngelesLos AngelesCA90095USA
- Jonsson Comprehensive Cancer CenterUniversity of California, Los AngelesLos AngelesCA90095USA
- Department of RadiologyDavid Geffen School of MedicineUniversity of California, Los AngelesLos AngelesCA90095USA
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
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19
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Closely related reovirus lab strains induce opposite expression of RIG-I/IFN-dependent versus -independent host genes, via mechanisms of slow replication versus polymorphisms in dsRNA binding σ3 respectively. PLoS Pathog 2020; 16:e1008803. [PMID: 32956403 PMCID: PMC7529228 DOI: 10.1371/journal.ppat.1008803] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 10/01/2020] [Accepted: 07/13/2020] [Indexed: 12/28/2022] Open
Abstract
The Dearing isolate of Mammalian orthoreovirus (T3D) is a prominent model of virus-host relationships and a candidate oncolytic virotherapy. Closely related laboratory strains of T3D, originating from the same ancestral T3D isolate, were recently found to exhibit significantly different oncolytic properties. Specifically, the T3DPL strain had faster replication kinetics in a panel of cancer cells and improved tumor regression in an in vivo melanoma model, relative to T3DTD. In this study, we discover that T3DPL and T3DTD also differentially activate host signalling pathways and downstream gene transcription. At equivalent infectious dose, T3DTD induces higher IRF3 phosphorylation and expression of type I IFNs and IFN-stimulated genes (ISGs) than T3DPL. Using mono-reassortants with intermediate replication kinetics and pharmacological inhibitors of reovirus replication, IFN responses were found to inversely correlate with kinetics of virus replication. In other words, slow-replicating T3D strains induce more IFN signalling than fast-replicating T3D strains. Paradoxically, during co-infections by T3DPL and T3DTD, there was still high IRF3 phosphorylation indicating a phenodominant effect by the slow-replicating T3DTD. Using silencing and knock-out of RIG-I to impede IFN, we found that IFN induction does not affect the first round of reovirus replication but does prevent cell-cell spread in a paracrine fashion. Accordingly, during co-infections, T3DPL continues to replicate robustly despite activation of IFN by T3DTD. Using gene expression analysis, we discovered that reovirus can also induce a subset of genes in a RIG-I and IFN-independent manner; these genes were induced more by T3DPL than T3DTD. Polymorphisms in reovirus σ3 viral protein were found to control activation of RIG-I/ IFN-independent genes. Altogether, the study reveals that single amino acid polymorphisms in reovirus genomes can have large impact on host gene expression, by both changing replication kinetics and by modifying viral protein activity, such that two closely related T3D strains can induce opposite cytokine landscapes.
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20
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Marotel M, Hasim MS, Hagerman A, Ardolino M. The two-faces of NK cells in oncolytic virotherapy. Cytokine Growth Factor Rev 2020; 56:59-68. [PMID: 32586674 DOI: 10.1016/j.cytogfr.2020.06.005] [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] [Received: 05/19/2020] [Accepted: 06/04/2020] [Indexed: 12/17/2022]
Abstract
Oncolytic viruses (OVs) are immunotherapeutics capable of directly killing cancer cells and with potent immunostimulatory properties. OVs exert their antitumor effect, at least partially, by activating the antitumor immune response, of which NK cells are an important component. However, if on the one hand increasing evidence revealed that NK cells are important mediators of oncolytic virotherapy, on the other hand, NK cells have evolved to fight viral infections, and therefore they can have a detrimental effect for the efficacy of OVs. In this review, we will discuss the dichotomy between the antitumor and antiviral functions of NK cells related to oncolytic virotherapy. We will also review NK cell-based and OV-based therapies, engineered OVs aimed at enhancing immune stimulation, and combination therapies involving OVs and NK cells currently used in cancer immunotherapy.
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Affiliation(s)
- M Marotel
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Canada; Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Canada
| | - M S Hasim
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Canada; Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Canada
| | - A Hagerman
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Canada; Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Canada; University of Ottawa, Department of Biochemistry, Microbiology and Immunology, Ottawa, Canada
| | - M Ardolino
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Canada; Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Canada; University of Ottawa, Department of Biochemistry, Microbiology and Immunology, Ottawa, Canada.
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21
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Boettcher AN, Usman A, Morgans A, VanderWeele DJ, Sosman J, Wu JD. Past, Current, and Future of Immunotherapies for Prostate Cancer. Front Oncol 2019; 9:884. [PMID: 31572678 PMCID: PMC6749031 DOI: 10.3389/fonc.2019.00884] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/27/2019] [Indexed: 12/22/2022] Open
Abstract
Prostate cancer (PCa) is the most common cancer in men, and the second leading cause of cancer related death in men in Western countries. The standard therapy for metastatic PCa is androgen suppression therapy (AST). Men undergoing AST eventually develop metastatic castration-resistant prostate cancer (mCRPC), of which there are limited treatment options available. Immunotherapy has presented substantial benefits for many types of cancer, but only a marginal benefit for mCRPC, at least in part, due to the immunosuppressive tumor microenvironment (TME). Current clinical trials are investigating monotherapies or combination therapies involving adoptive cellular therapy, viral, DNA vaccines, oncolytic viruses, and immune checkpoint inhibitors (ICI). Immunotherapies are also being combined with chemotherapy, radiation, and AST. Additionally, preclinical investigations show promise with the recent description of alternative ways to circumvent the immunosuppressive nature of the prostate tumor microenvironment, including harnessing the immune stimulatory NKG2D pathway, inhibiting myeloid derived suppressor cells, and utilizing immunomodulatory oncolytic viruses. Herein we provide an overview of recent preclinical and clinical developments in cancer immunotherapies and discuss the perspectives for future immunotherapies in PCa.
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Affiliation(s)
- Adeline N Boettcher
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Ahmed Usman
- Department of Hematology and Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Alicia Morgans
- Department of Hematology and Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - David J VanderWeele
- Department of Hematology and Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Jeffrey Sosman
- Department of Hematology and Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Jennifer D Wu
- Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States.,Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
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22
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Mast Cells and Natural Killer Cells-A Potentially Critical Interaction. Viruses 2019; 11:v11060514. [PMID: 31167464 PMCID: PMC6631774 DOI: 10.3390/v11060514] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells play critical roles in host defense against infectious agents or neoplastic cells. NK cells provide a rapid innate immune response including the killing of target cells without the need for priming. However, activated NK cells can show improved effector functions. Mast cells are also critical for early host defense against a variety of pathogens and are predominately located at mucosal surfaces and close to blood vessels. Our group has recently shown that virus-infected mast cells selectively recruit NK cells and positively modulate their functions through mechanisms dependent on soluble mediators, such as interferons. Here, we review the possible consequences of this interaction in both host defense and pathologies involving NK cell and mast cell activation.
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23
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Treatment of Metastatic Disease through Natural Killer Cell Modulation by Infected Cell Vaccines. Viruses 2019; 11:v11050434. [PMID: 31083491 PMCID: PMC6563237 DOI: 10.3390/v11050434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/02/2019] [Accepted: 05/10/2019] [Indexed: 12/28/2022] Open
Abstract
Oncolytic viruses (OVs) are a form of immunotherapy that release tumor antigens in the context of highly immunogenic viral signals following tumor-targeted infection and destruction. Emerging preclinical and clinical evidence suggests that this in situ vaccine effect is critical for successful viro-immunotherapy. In this review, we discuss the application of OV as an infected cell vaccine (ICV) as one method of enhancing the potency and breadth of anti-tumoral immunity. We focus on understanding and manipulating the critical role of natural killer (NK) cells and their interactions with other immune cells to promote a clinical outcome. With a synergistic tumor killing and immune activating mechanism, ICVs represent a valuable new addition to the cancer fighting toolbox with the potential to treat malignant disease.
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24
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Mardiana S, Lai J, House IG, Beavis PA, Darcy PK. Switching on the green light for chimeric antigen receptor T-cell therapy. Clin Transl Immunology 2019; 8:e1046. [PMID: 31073403 PMCID: PMC6500780 DOI: 10.1002/cti2.1046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 12/18/2022] Open
Abstract
Adoptive cellular therapy involving genetic modification of T cells with chimeric antigen receptor (CAR) transgene offers a promising strategy to broaden the efficacy of this approach for the effective treatment of cancer. Although remarkable antitumor responses have been observed following CAR T‐cell therapy in a subset of B‐cell malignancies, this has yet to be extended in the context of solid cancers. A number of promising strategies involving reprogramming the tumor microenvironment, increasing the specificity and safety of gene‐modified T cells and harnessing the endogenous immune response have been tested in preclinical models that may have a significant impact in patients with solid cancers. This review will discuss these exciting new developments and the challenges that must be overcome to deliver a more sustained and potent therapeutic response.
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Affiliation(s)
- Sherly Mardiana
- Cancer Immunology Program Peter MacCallum Cancer Centre Melbourne VIC Australia.,Sir Peter MacCallum Department of Oncology The University of Melbourne Parkville VIC Australia
| | - Junyun Lai
- Cancer Immunology Program Peter MacCallum Cancer Centre Melbourne VIC Australia.,Sir Peter MacCallum Department of Oncology The University of Melbourne Parkville VIC Australia
| | - Imran Geoffrey House
- Cancer Immunology Program Peter MacCallum Cancer Centre Melbourne VIC Australia.,Sir Peter MacCallum Department of Oncology The University of Melbourne Parkville VIC Australia
| | - Paul Andrew Beavis
- Cancer Immunology Program Peter MacCallum Cancer Centre Melbourne VIC Australia.,Sir Peter MacCallum Department of Oncology The University of Melbourne Parkville VIC Australia
| | - Phillip Kevin Darcy
- Cancer Immunology Program Peter MacCallum Cancer Centre Melbourne VIC Australia.,Sir Peter MacCallum Department of Oncology The University of Melbourne Parkville VIC Australia.,Department of Pathology University of Melbourne Parkville VIC Australia.,Department of Immunology Monash University Clayton VIC Australia
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25
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Rosewell Shaw A, Suzuki M. Oncolytic Viruses Partner With T-Cell Therapy for Solid Tumor Treatment. Front Immunol 2018; 9:2103. [PMID: 30298067 PMCID: PMC6160535 DOI: 10.3389/fimmu.2018.02103] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/28/2018] [Indexed: 12/11/2022] Open
Abstract
Adoptive T-cell immunotherapies, including chimeric antigen receptor-modified T-cells (CAR-T cells), have revolutionized cancer treatment, especially for hematologic malignancies. Clinical success of CAR-T cell monotherapy in solid tumors however, has been only modest. Oncolytic viruses provide direct cancer cell lysis, stimulate systemic immune responses, and have the capacity to provide therapeutic transgenes. Oncolytic virotherapy has shown great promise in many preclinical solid tumor models and the first oncolytic virus has been approved by the FDA for the treatment of advanced melanoma. As monotherapies for solid tumors, oncolytic virotherapy provides only moderate anti-tumor effects. However, due to their complementary modes of action, oncolytic virus and T-cell therapies can be combined to overcome the inherent limitations of each agent. This review focuses on the aspects of oncolytic viruses that enable them to synergize with adoptive T-cell immunotherapies to enhance anti-tumor effects for solid tumors.
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Affiliation(s)
- Amanda Rosewell Shaw
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States.,Baylor College of Medicine, Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX, United States
| | - Masataka Suzuki
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States.,Baylor College of Medicine, Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX, United States
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26
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Hoare J, Campbell N, Carapuça E. Oncolytic virus immunotherapies in ovarian cancer: moving beyond adenoviruses. Porto Biomed J 2018; 3:e7. [PMID: 31595233 PMCID: PMC6726300 DOI: 10.1016/j.pbj.0000000000000007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/04/2018] [Indexed: 12/22/2022] Open
Abstract
Ovarian cancer is the 5th most common cancer in UK women with a high relapse rate. The overall survival for ovarian cancer has remained low for decades prompting a real need for new therapies. Recurrent ovarian cancer remains confined in the peritoneal cavity in >80% of the patients, providing an opportunity for locoregional administration of novel therapeutics, including gene and viral therapy approaches. Immunotherapy is an expanding field, and includes oncolytic viruses as well as monoclonal antibodies, immune checkpoint inhibitors, and therapeutic vaccines. Oncolytic viruses cause direct cancer cell cytolysis and immunogenic cell death and subsequent release of tumor antigens that will prime for a potent tumor-specific immunity. This effect may be further enhanced when the viruses are engineered to express, or coadministered with, immunostimulatory molecules. Currently, the most commonly used and well-characterized vectors utilized for virotherapy purposes are adenoviruses. They have been shown to work synergistically with traditional chemotherapy and radiotherapy and have met with success in clinical trials. However, pre-existing immunity and poor in vivo models limit our ability to fully investigate the potential of oncolytic adenovirus as effective immunotherapies which in turn fosters the need to develop alternative viral vectors. In this review we cover recent advances in adenovirus-based oncolytic therapies targeting ovarian cancer and recent advances in mapping immune responses to oncolytic virus therapies in ovarian cancer.
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Affiliation(s)
- Joseph Hoare
- Centre for Molecular Oncology, Barts Cancer Institute - a CRUK Centre of Excellence, Queen Mary University of London, London, United Kingdom
| | - Nicola Campbell
- Centre for Molecular Oncology, Barts Cancer Institute - a CRUK Centre of Excellence, Queen Mary University of London, London, United Kingdom
| | - Elisabete Carapuça
- Centre for Molecular Oncology, Barts Cancer Institute - a CRUK Centre of Excellence, Queen Mary University of London, London, United Kingdom
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27
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Chaurasiya S, Chen NG, Fong Y. Oncolytic viruses and immunity. Curr Opin Immunol 2018; 51:83-90. [PMID: 29550660 DOI: 10.1016/j.coi.2018.03.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 01/24/2018] [Accepted: 03/01/2018] [Indexed: 12/20/2022]
Abstract
Initially, direct oncolysis was thought to be the sole mechanism through which oncolytic viruses (OVs) exert their anti-tumor effect, and the immune system was perceived as the major obstacle in oncolytic virotherapy. Over the last decade, there has been a lot of debate on whether the immune system is a friend or foe of OVs. However, we are now at a stage where the initial thinking has been reversed as a result of compelling evidence that the immune system plays a critical role in the success of oncolytic virotherapy. In this review we discuss the importance of the involvement of innate and adaptive immunity for therapeutic efficacy of OVs, and the rational combination of OVs with other immunotherapies for further enhancement of overall therapeutic outcome.
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Affiliation(s)
| | - Nanhai G Chen
- Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA; Center for Gene Therapy, Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA; Gene Editing and Viral Vector Core, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Yuman Fong
- Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA; Center for Gene Therapy, Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA.
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28
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Abstract
The clinical effectiveness of immunotherapies for prostate cancer remains subpar compared with that for other cancers. The goal of most immunotherapies is the activation of immune effectors, such as T cells and natural killer cells, as the presence of these activated mediators positively correlates with patient outcomes. Clinical evidence shows that prostate cancer is immunogenic, accessible to the immune system, and can be targeted by antitumour immune responses. However, owing to the detrimental effects of prostate-cancer-associated immunosuppression, even the newest immunotherapeutic approaches fail to initiate the clinically desired antitumour immune reaction. Oncolytic viruses, originally used for their preferential cancer-killing activity, are now being recognized for their ability to overturn cancer-associated immune evasion and promote otherwise absent antitumour immunity. This oncolytic-virus-induced subversion of tumour-associated immunosuppression can potentiate the effectiveness of current immunotherapeutics, including immune checkpoint inhibitors (for example, antibodies against programmed cell death protein 1 (PD1), programmed cell death 1 ligand 1 (PDL1), and cytotoxic T lymphocyte antigen 4 (CTLA4)) and chemotherapeutics that induce immunogenic cell death (for example, doxorubicin and oxaliplatin). Importantly, oncolytic-virus-induced antitumour immunity targets existing prostate cancer cells and also establishes long-term protection against future relapse. Hence, the strategic use of oncolytic viruses as monotherapies or in combination with current immunotherapies might result in the next breakthrough in prostate cancer immunotherapy.
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29
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Gujar S, Pol JG, Kim Y, Lee PW, Kroemer G. Antitumor Benefits of Antiviral Immunity: An Underappreciated Aspect of Oncolytic Virotherapies. Trends Immunol 2017; 39:209-221. [PMID: 29275092 DOI: 10.1016/j.it.2017.11.006] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 02/06/2023]
Abstract
Oncolytic viruses (OVs) represent a new class of cancer immunotherapeutics. Administration of OVs to cancer-bearing hosts induces two distinct immunities: antiviral and antitumor. While antitumor immunity is beneficial, antiviral immune responses are often considered detrimental for the efficacy of OV-based therapy. The existing dogma postulates that anti-OV immune responses restrict viral replication and spread, and thus reduce direct OV-mediated killing of cancer cells. Accordingly, a myriad of therapeutic strategies aimed at mitigating anti-OV immune responses is presently being tested. Here, we advocate that OV-induced antiviral immune responses hold intrinsic anticancer benefits and are essential for establishing clinically desired antitumor immunity. Thus, to achieve the optimal efficacy of OV-based cancer immunotherapies, strategic management of anti-OV immune responses is of critical importance.
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Affiliation(s)
- Shashi Gujar
- Department of Pathology, Dalhousie University, Halifax, NS, Canada; Department of Microbiology and Immunology, Dalhousie University, NS, Canada; Department of Biology, Dalhousie University, NS, Canada; Centre for Innovative and Collaborative Health Sciences Research, Quality and System Performance, IWK Health Centre, Halifax, NS, Canada; These authors contributed equally to this work
| | - Jonathan G Pol
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France; INSERM, U1138, Paris, France; Equipe 11 labellisée par la Ligue Nationale Contre le Cancer, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; These authors contributed equally to this work
| | - Youra Kim
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
| | - Patrick W Lee
- Department of Pathology, Dalhousie University, Halifax, NS, Canada; Department of Microbiology and Immunology, Dalhousie University, NS, Canada; Share senior co-authorship.
| | - Guido Kroemer
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France; INSERM, U1138, Paris, France; Equipe 11 labellisée par la Ligue Nationale Contre le Cancer, Centre de Recherche des Cordeliers, Paris, France; Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France; Université Pierre et Marie Curie/Paris VI, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden; Share senior co-authorship.
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30
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Zhao X, Ouyang W, Chester C, Long S, Wang N, He Z. Cytokine-induced killer cell delivery enhances the antitumor activity of oncolytic reovirus. PLoS One 2017; 12:e0184816. [PMID: 28922411 PMCID: PMC5602626 DOI: 10.1371/journal.pone.0184816] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 08/31/2017] [Indexed: 02/07/2023] Open
Abstract
Oncolytic viruses (OV) have recently emerged as a promising therapeutic modality in cancer treatment. OV selectively infect and kill tumor cells, while sparing untransformed cells. The direct cytotoxic effects combined with the capacity to trigger an immune response make OV an appealing combination partner in the burgeoning field of cancer immunotherapy. One of the leading OV therapeutic candidates is the double-stranded RNA virus reovirus. In order to improve the oncolytic activity of reovirus and allow for systemic administration despite the prevalence of neutralizing antibodies, cytokine-induced killer (CIK) cells were explored as cell carriers for reovirus delivery. In this study, CIK cells were successfully loaded with reovirus ex vivo, and viral replication was limited in CIK cells. Confocal microscopy and flow cytometry demonstrated that CIK cells retained reovirus on the surface. Moreover, CIK cells could promote reovirus infection of tumor cells in the presence of neutralizing antibodies; meanwhile, cytotoxicity of CIK cells was increased after loading with reovirus. These findings support further investigation of reovirus and CIK combination for antitumor therapy.
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Affiliation(s)
- Xing Zhao
- Stem Cell and Tissue Engineering Research Center, Guizhou Medical University, Guiyang, Guizhou, China
- Department of Immunology, Guizhou Medical University, Guiyang, Guizhou, China
| | - Weiwei Ouyang
- Department of Thoracic Oncology, Affiliated Hospital of Guizhou Medical University, and Guizhou Cancer Hospital, Guiyang, Guizhou, China
| | - Cariad Chester
- Department of Medicine, Division of Oncology, Stanford University, Stanford, California, United States of America
| | - Shiqi Long
- Department of Immunology, Guizhou Medical University, Guiyang, Guizhou, China
| | - Nianxue Wang
- Department of Immunology, Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhixu He
- Stem Cell and Tissue Engineering Research Center, Guizhou Medical University, Guiyang, Guizhou, China
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31
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NKp46 Recognizes the Sigma1 Protein of Reovirus: Implications for Reovirus-Based Cancer Therapy. J Virol 2017; 91:JVI.01045-17. [PMID: 28724773 DOI: 10.1128/jvi.01045-17] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 07/12/2017] [Indexed: 12/22/2022] Open
Abstract
The recent approval of oncolytic virus for therapy of melanoma patients has increased the need for precise evaluation of the mechanisms by which oncolytic viruses affect tumor growth. Here we show that the human NK cell-activating receptor NKp46 and the orthologous mouse protein NCR1 recognize the reovirus sigma1 protein in a sialic-acid-dependent manner. We identify sites of NKp46/NCR1 binding to sigma1 and show that sigma1 binding by NKp46/NCR1 leads to NK cell activation in vitro Finally, we demonstrate that NCR1 activation is essential for reovirus-based therapy in vivo Collectively, we have identified sigma1 as a novel ligand for NKp46/NCR1 and demonstrated that NKp46/NCR1 is needed both for clearance of reovirus infection and for reovirus-based tumor therapy.IMPORTANCE Reovirus infects much of the population during childhood, causing mild disease, and hence is considered to be efficiently controlled by the immune system. Reovirus also specifically infects tumor cells, leading to tumor death, and is currently being tested in human clinical trials for cancer therapy. The mechanisms by which our immune system controls reovirus infection and tumor killing are not well understood. We report here that natural killer (NK) cells recognize a viral protein named sigma1 through the NK cell-activating receptor NKp46. Using several mouse tumor models, we demonstrate the importance of NK cells in protection from reovirus infection and in reovirus killing of tumors in vivo Collectively, we identify a new ligand for the NKp46 receptor and provide evidence for the importance of NKp46 in the control of reovirus infections and in reovirus-based cancer therapy.
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32
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Jaime-Ramirez AC, Yu JG, Caserta E, Yoo JY, Zhang J, Lee TJ, Hofmeister C, Lee JH, Kumar B, Pan Q, Kumar P, Baiocchi R, Teknos T, Pichiorri F, Kaur B, Old M. Reolysin and Histone Deacetylase Inhibition in the Treatment of Head and Neck Squamous Cell Carcinoma. Mol Ther Oncolytics 2017; 5:87-96. [PMID: 28812060 PMCID: PMC5440762 DOI: 10.1016/j.omto.2017.05.002] [Citation(s) in RCA: 21] [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: 01/04/2017] [Accepted: 05/03/2017] [Indexed: 02/09/2023] Open
Abstract
Oncolytic viruses (OVs) are emerging as powerful anti-cancer agents and are currently being tested for their safety and efficacy in patients. Reovirus (Reolysin), a naturally occurring non-pathogenic, double-stranded RNA virus, has natural oncolytic activity and is being tested in phase I-III clinical trials in a variety of tumor types. With its recent US Food and Drug Administration (FDA) orphan drug designation for several tumor types, Reolysin is a potential therapeutic agent for various cancers, including head and neck squamous cell carcinomas (HNSCCs), which have a 5-year survival of ∼55%. Histone deacetylase inhibitors (HDACis) comprise a structurally diverse class of compounds with targeted anti-cancer effects. The first FDA-approved HDACi, vorinostat (suberoylanilide hydroxamic acid [SAHA]), is currently being tested in patients with head and neck cancer. Recent findings indicate that HDAC inhibition in myeloma cells results in the upregulation of the Reolysin entry receptor, junctional adhesion molecule 1 (JAM-1), facilitating reovirus infection and tumor cell killing both in vitro and in vivo. In this study, we tested the anti-tumor efficacy of HDAC inhibitors AR-42 or SAHA in conjunction with Reolysin in HNSCCs. While HDAC inhibition increased JAM-1 and reovirus entry, the impact of this combination therapy was tested on the development of anti-tumor immune responses.
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Affiliation(s)
| | - Jun-Ge Yu
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Enrico Caserta
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Ji Young Yoo
- Department of Neurological Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Jianying Zhang
- Biomedical Informatics Department, Center for Biostatistics, Wexner Medical Center, The Ohio State University, Columbus, OH 43210, USA
| | - Tae Jin Lee
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Craig Hofmeister
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - John H. Lee
- Department of Otolaryngology/Head and Neck Surgery, Sanford Health, Sioux Falls, SD 57105, USA
| | - Bhavna Kumar
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Quintin Pan
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Pawan Kumar
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Robert Baiocchi
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Theodoros Teknos
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Flavia Pichiorri
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Balveen Kaur
- Department of Neurological Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Matthew Old
- Department of Otolaryngology-Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
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Fujita K, Nakai Y, Kawashima A, Ujike T, Nagahara A, Nakajima T, Inoue T, Lee CM, Uemura M, Miyagawa Y, Kaneda Y, Nonomura N. Phase I/II clinical trial to assess safety and efficacy of intratumoral and subcutaneous injection of HVJ-E in castration-resistant prostate cancer patients. Cancer Gene Ther 2017; 24:277-281. [PMID: 28497777 PMCID: PMC5562845 DOI: 10.1038/cgt.2017.15] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/01/2017] [Accepted: 03/04/2017] [Indexed: 12/27/2022]
Abstract
Inactivated Sendai virus particles (hemagglutinating virus of Japan envelope (HVJ-E)) have a novel antitumor effect: HVJ-E fused to prostate cancer cells via cell surface receptor causes apoptosis of prostate cancer cells in vitro and in vivo. HVJ-E also induces antitumor immunity by activating natural killer (NK) cells and cytotoxic T cells and suppressing regulatory T cells in vivo. We conducted an open-label, single-arm, phase I/II clinical trial in patients with castration-resistant prostate cancer (CRPC) to determine the safety and efficacy of intratumoral and subcutaneous injection of HVJ-E. Patients with CRPC who were docetaxel-resistant or could not receive docetaxel treatment were eligible. HVJ-E was injected directly into the prostate on day 1 and subcutaneously on days 5, 8 and 12 in two 28-day treatment cycles using a 3+3 dose-escalation design. The primary end points were to evaluate safety and tolerability of HVJ-E. The secondary end points were to analyze tumor immunity and antitumor effect. The study is registered at UMIN Clinical Trials Registry, number UMIN000006142. Seven patients were enrolled, and six patients received HVJ-E. Grade 2 or 3 adverse events (Common Terminology Criteria for Adverse Events Ver. 4.0) were urinary retention and lymphopenia from which the patients recovered spontaneously. No Grade 4 adverse events were observed. Radiographically, three patients had stable disease in the low-dose group, and one patient had stable disease and two had progressive disease in the high-dose group. The prostate-specific antigen (PSA) declined from 14 to 1.9 ng ml-1 in one patient in the low-dose group after two cycles of HVJ-E treatment, and the PSA response rate was 16.6%. NK cell activity was elevated from day 12 to day 28 after HVJ-E administration, whereas serum interleukin-6, interferon (IFN)-α, IFN-β and IFN-γ levels were not affected by HVJ-E treatment. Intratumoral and subcutaneous injections of HVJ-E are feasible and PSA response was observed in a subgroup of CRPC patients.
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Affiliation(s)
- K Fujita
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Nakai
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - A Kawashima
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - T Ujike
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - A Nagahara
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | | | - T Inoue
- Department of Medical Innovation, Osaka University Graduate School of Medicine, Suita, Japan
| | - C M Lee
- Department of Medical Innovation, Osaka University Graduate School of Medicine, Suita, Japan
| | - M Uemura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Miyagawa
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Kaneda
- Division of Gene Therapy Science, Osaka University Graduate School of Medicine, Suita, Japan
| | - N Nonomura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
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Intraperitoneal immunotherapy: historical perspectives and modern therapy. Cancer Gene Ther 2016; 23:373-381. [PMID: 27834358 DOI: 10.1038/cgt.2016.49] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 09/12/2016] [Accepted: 09/19/2016] [Indexed: 12/18/2022]
Abstract
Intraperitoneal immunotherapy represents a novel strategy for the management of peritoneal metastases (PM). Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) has remained the gold standard of treatment for patients with PM, yet despite optimal treatment, recurrence rates remain high and long-term survival poor. From Coley's toxins to immune checkpoint inhibitors, the wide variety of anticancer immunotherapeutic strategies are now garnering attention for control of regional disease of the peritoneal cavity. Early studies with vaccine-based therapies, adoptive cell transfer, immune checkpoint inhibitors, and chimeric T cells with tumor-specific antigen receptors (CAR-T cells) are being performed, showing promise for control of peritoneal spread and induction of lasting anticancer immunity. In addition, catumaxomab, a trifunctional antibody, has been approved for intraperitoneal immunotherapy in Europe for the control of malignant ascites in patients with epithelial cell adhesion molecule positive cancers. We review a brief history of immunotherapy and current modalities under investigation for intraperitoneal use in the treatment of PM.
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Capitalizing on Cancer Specific Replication: Oncolytic Viruses as a Versatile Platform for the Enhancement of Cancer Immunotherapy Strategies. Biomedicines 2016; 4:biomedicines4030021. [PMID: 28536388 PMCID: PMC5344262 DOI: 10.3390/biomedicines4030021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/16/2016] [Accepted: 08/16/2016] [Indexed: 02/07/2023] Open
Abstract
The past decade has seen considerable excitement in the use of biological therapies in treating neoplastic disease. In particular, cancer immunotherapy and oncolytic virotherapy have emerged as two frontrunners in this regard with the first FDA approvals for agents in both categories being obtained in the last 5 years. It is becoming increasingly apparent that these two approaches are not mutually exclusive and that much of the therapeutic benefit obtained from the use of oncolytic viruses (OVs) is in fact the result of their immunotherapeutic function. Indeed, OVs have been shown to recruit and activate an antitumor immune response and much of the current work in this field centers around increasing this activity through strategies such as engineering genes for immunomodulators into OV backbones. Because of their broad immunostimulatory functions, OVs can also be rationally combined with a variety of other immunotherapeutic approaches including cancer vaccination strategies, adoptive cell transfer and checkpoint blockade. Therefore, while they are important therapeutics in their own right, the true power of OVs may lie in their ability to enhance the effectiveness of a wide range of immunotherapies.
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Randomized Phase 2 Trial of the Oncolytic Virus Pelareorep (Reolysin) in Upfront Treatment of Metastatic Pancreatic Adenocarcinoma. Mol Ther 2016; 24:1150-1158. [PMID: 27039845 PMCID: PMC4923331 DOI: 10.1038/mt.2016.66] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 03/24/2016] [Indexed: 12/13/2022] Open
Abstract
Pelareorep causes oncolysis in tumor cells with activated Ras. We hypothesized that pelareorep would have efficacy and immunomodulatory activity in metastatic pancreatic adenocarcinoma (MPA) when combined with carboplatin and paclitaxel. A randomized phase 2 study (NCT01280058) was conducted in treatment-naive patients with MPA randomized to two treatment arms: paclitaxel/carboplatin + pelareorep (Arm A, n = 36 evaluable patients) versus paclitaxel/carboplatin (Arm B, n = 37 evaluable patients). There was no difference in progression-free survival (PFS) between the arms (Arm A PFS = 4.9 months, Arm B PFS = 5.2 months, P = 0.6), and Kirsten rat sarcoma viral oncogene (KRAS) status did not impact outcome. Quality-adjusted Time without Symptoms or Toxicity analysis revealed that the majority of PFS time was without toxicity or progression (4.3 months). Patient immunophenotype appeared important, as soluble immune biomarkers were associated with treatment outcome (fractalkine, interleukin (IL)-6, IL-8, regulated on activation, normal T cell expressed and secreted (RANTES), and vascular endothelial growth factor (VEGF)). Increased circulating T and natural killer (NK)-cell subsets were also significantly associated with treatment outcome. Addition of pelareorep was associated with higher levels of 14 proinflammatory plasma cytokines/chemokines and cells with an immunosuppressive phenotype (Tregs, cytotoxic T lymphocyte associated protein 4 (CTLA4)(+) T cells). Overall, pelareorep was safe but does not improve PFS when administered with carboplatin/paclitaxel, regardless of KRAS mutational status. Immunologic studies suggest that chemotherapy backbone improves immune reconstitution and that targeting remaining immunosuppressive mediators may improve oncolytic virotherapy.
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Abstract
Oncolytic virotherapy is a cancer treatment in which replication-competent viruses are used that specifically infect, replicate in and lyse malignant tumour cells, while minimizing harm to normal cells. Anecdotal evidence of the effectiveness of this strategy has existed since the late nineteenth century, but advances and innovations in biotechnological methods in the 1980s and 1990s led to a renewed interest in this type of therapy. Multiple clinical trials investigating the use of agents constructed from a wide range of viruses have since been performed, and several of these enrolled patients with urological malignancies. Data from these clinical trials and from preclinical studies revealed a number of challenges to the effectiveness of oncolytic virotherapy that have prompted the development of further sophisticated strategies. Urological cancers have a range of distinctive features, such as specific genetic mutations and cell surface markers, which enable improving both effectiveness and safety of oncolytic virus treatments. The strategies employed in creating advanced oncolytic agents include alteration of the virus tropism, regulating transcription and translation of viral genes, combination with chemotherapy, radiotherapy or gene therapy, arming viruses with factors that stimulate the immune response against tumour cells and delivery technologies to ensure that the viral agent reaches its target tissue.
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Affiliation(s)
- Zahid Delwar
- Department of Surgery, University of British Columbia, 2211 Wesbrook Mall, Vancouver, British Columbia V6T 2B5, Canada
| | - Kaixin Zhang
- Department of Urology, University of British Columbia, Level 6, 2775 Laurel Street, Vancouver, British Columbia V5Z 1M9, Canada
| | - Paul S Rennie
- Prostate Research Centre, Vancouver General Hospital, 2660 Oak Street, Vancouver, British Columbia V6H 3Z6, Canada
| | - William Jia
- Department of Surgery, University of British Columbia, 2211 Wesbrook Mall, Vancouver, British Columbia V6T 2B5, Canada
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Lawson KA, Mostafa AA, Shi ZQ, Spurrell J, Chen W, Kawakami J, Gratton K, Thakur S, Morris DG. Repurposing Sunitinib with Oncolytic Reovirus as a Novel Immunotherapeutic Strategy for Renal Cell Carcinoma. Clin Cancer Res 2016; 22:5839-5850. [PMID: 27220962 DOI: 10.1158/1078-0432.ccr-16-0143] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/11/2016] [Accepted: 04/18/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE In addition to their direct cytopathic effects, oncolytic viruses are capable of priming antitumor immune responses. However, strategies to enhance the immunotherapeutic potential of these agents are lacking. Here, we investigated the ability of the multi-tyrosine kinase inhibitor and first-line metastatic renal cell carcinoma (RCC) agent, sunitinib, to augment the antitumor immune response generated by oncolytic reovirus. EXPERIMENTAL DESIGN In vitro, oncolysis and chemokine production were assessed in a panel of human and murine RCC cell lines after exposure to reovirus, sunitinib, or their combination. In vivo, the RENCA syngeneic murine model of RCC was employed to determine therapeutic and tumor-specific immune responses after treatment with reovirus (intratumoral), sunitinib, or their combination. Parallel investigations employing the KLN205 syngeneic murine model of lung squamous cell carcinoma (NSCLC) were conducted for further validation. RESULTS Reovirus-mediated oncolysis and chemokine production was observed following RCC infection. Reovirus monotherapy reduced tumor burden and was capable of generating a systemic adaptive antitumor immune response evidenced by increased numbers of tumor-specific CD8+ IFNγ-producing cells. Coadministration of sunitinib with reovirus further reduced tumor burden resulting in improved survival, decreased accumulation of immune suppressor cells, and the establishment of protective immunity upon tumor rechallenge. Similar results were observed for KLN205 tumor-bearing mice, highlighting the potential broad applicability of this approach. CONCLUSIONS The ability to repurpose sunitinib for augmentation of reovirus' immunotherapeutic efficacy positions this novel combination therapy as an attractive strategy ready for clinical testing against a range of histologies, including RCC and NSCLC. Clin Cancer Res; 22(23); 5839-50. ©2016 AACR.
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Affiliation(s)
- Keith A Lawson
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Ahmed A Mostafa
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Zhong Qiao Shi
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Jason Spurrell
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Wenqian Chen
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Jun Kawakami
- Southern Alberta Institute of Urology, University of Calgary, Calgary, Alberta, Canada
| | - Kathy Gratton
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Satbir Thakur
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.,Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Donald G Morris
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada. .,Tom Baker Cancer Centre, Calgary, Alberta, Canada
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Zhao X, Chester C, Rajasekaran N, He Z, Kohrt HE. Strategic Combinations: The Future of Oncolytic Virotherapy with Reovirus. Mol Cancer Ther 2016; 15:767-73. [PMID: 27197256 DOI: 10.1158/1535-7163.mct-15-0695] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/11/2015] [Indexed: 11/16/2022]
Abstract
The dominant cancer treatment modalities such as chemotherapy, radiotherapy, and even targeted kinase inhibitors and mAbs are limited by low efficacy, toxicity, and treatment-resistant tumor subclones. Oncolytic viral therapy offers a novel therapeutic strategy that has the potential to dramatically improve clinical outcomes. Reovirus, a double-stranded benign human RNA virus, is a leading candidate for therapeutic development and currently in phase III trials. Reovirus selectively targets transformed cells with activated Ras signaling pathways; Ras genes are some of the most frequently mutated oncogenes in human cancer and it is estimated that at least 30% of all human tumors exhibit aberrant Ras signaling. By targeting Ras-activated cells, reovirus can directly lyse cancer cells, disrupt tumor immunosuppressive mechanisms, reestablish multicellular immune surveillance, and generate robust antitumor responses. Reovirus therapy is currently being tested in combination with radiotherapy, chemotherapy, immunotherapy, and surgery. In this review, we discuss the current successes of these combinatorial therapeutic strategies and emphasize the importance of prioritizing combination oncolytic viral therapy as reovirus-based treatments progress in clinical development. Mol Cancer Ther; 15(5); 767-73. ©2016 AACR.
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Affiliation(s)
- Xing Zhao
- Department of Medicine, Division of Oncology, Stanford University, Stanford, California. Tissue Engineering and Stem Cells Research Center, Department of Immunology, Guizhou Medical University, Guizhou, China
| | - Cariad Chester
- Department of Medicine, Division of Oncology, Stanford University, Stanford, California. Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, California.
| | | | - ZhiXu He
- Tissue Engineering and Stem Cells Research Center, Department of Immunology, Guizhou Medical University, Guizhou, China.
| | - Holbrook E Kohrt
- Department of Medicine, Division of Oncology, Stanford University, Stanford, California
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40
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Gong J, Sachdev E, Mita AC, Mita MM. Clinical development of reovirus for cancer therapy: An oncolytic virus with immune-mediated antitumor activity. World J Methodol 2016; 6:25-42. [PMID: 27019795 PMCID: PMC4804250 DOI: 10.5662/wjm.v6.i1.25] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/26/2016] [Accepted: 02/17/2016] [Indexed: 02/06/2023] Open
Abstract
Reovirus is a double-stranded RNA virus with demonstrated oncolysis or preferential replication in cancer cells. The oncolytic properties of reovirus appear to be dependent, in part, on activated Ras signaling. In addition, Ras-transformation promotes reovirus oncolysis by affecting several steps of the viral life cycle. Reovirus-mediated immune responses can present barriers to tumor targeting, serve protective functions against reovirus systemic toxicity, and contribute to therapeutic efficacy through antitumor immune-mediated effects via innate and adaptive responses. Preclinical studies have demonstrated the broad anticancer activity of wild-type, unmodified type 3 Dearing strain reovirus (Reolysin®) across a spectrum of malignancies. The development of reovirus as an anticancer agent and available clinical data reported from 22 clinical trials will be reviewed.
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42
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Mohamed A, Johnston RN, Shmulevitz M. Potential for Improving Potency and Specificity of Reovirus Oncolysis with Next-Generation Reovirus Variants. Viruses 2015; 7:6251-78. [PMID: 26633466 PMCID: PMC4690860 DOI: 10.3390/v7122936] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 11/10/2015] [Accepted: 11/18/2015] [Indexed: 12/16/2022] Open
Abstract
Viruses that specifically replicate in tumor over normal cells offer promising cancer therapies. Oncolytic viruses (OV) not only kill the tumor cells directly; they also promote anti-tumor immunotherapeutic responses. Other major advantages of OVs are that they dose-escalate in tumors and can be genetically engineered to enhance potency and specificity. Unmodified wild type reovirus is a propitious OV currently in phase I–III clinical trials. This review summarizes modifications to reovirus that may improve potency and/or specificity during oncolysis. Classical genetics approaches have revealed reovirus variants with improved adaptation towards tumors or with enhanced ability to establish specific steps of virus replication and cell killing among transformed cells. The recent emergence of a reverse genetics system for reovirus has provided novel strategies to fine-tune reovirus proteins or introduce exogenous genes that could promote oncolytic activity. Over the next decade, these findings are likely to generate better-optimized second-generation reovirus vectors and improve the efficacy of oncolytic reotherapy.
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Affiliation(s)
- Adil Mohamed
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada.
| | - Randal N Johnston
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
| | - Maya Shmulevitz
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada.
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Downregulation of key regulatory proteins in androgen dependent prostate tumor cells by oncolytic reovirus. Virology 2015; 485:153-61. [PMID: 26264969 DOI: 10.1016/j.virol.2015.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 07/08/2015] [Accepted: 07/09/2015] [Indexed: 11/21/2022]
Abstract
As prostate tumor cell growth depends on hormones, androgen ablation is an effective therapy for prostate cancer (PCa). However, progression of PCa cells to androgen independent growth (castrate resistant prostate cancer, CRPC) results in relapse and mortality. Hypoxia, a microenvironment of low oxygen that modifies the activity of PCa regulatory proteins including the androgen receptor (AR), plays a critical role in progression to CRPC. Therapies targeting hypoxia and the AR may lengthen the time to CRPC progression thereby increasing survival time of PCa patients. Mammalian Orthoreovirus (MRV) has shown promise for the treatment of prostate tumors in vitro and in vivo. In this study, we found that MRV infection induces downregulation of proteins implicated in CRPC progression, interferes with hypoxia-induced AR activity, and induces apoptosis in androgen dependent cells. This suggests MRV possesses traits that could be exploited to create novel therapies for the inhibition of progression to CRPC.
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44
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Rajasekaran N, Chester C, Yonezawa A, Zhao X, Kohrt HE. Enhancement of antibody-dependent cell mediated cytotoxicity: a new era in cancer treatment. Immunotargets Ther 2015; 4:91-100. [PMID: 27471715 PMCID: PMC4918249 DOI: 10.2147/itt.s61292] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The therapeutic efficacy of some anti-tumor monoclonal antibodies (mAbs) depends on the capacity of the mAb to recognize the tumor-associated antigen and induce cytotoxicity via a network of immune effector cells. This process of antibody-dependent cell-mediated cytotoxicity (ADCC) against tumor cells is triggered by the interaction of the fragment crystallizable (Fc) portion of the mAb with the Fc receptors on effector cells like natural killer cells, macrophages, γδ T cells, and dendritic cells. By augmenting ADCC, the antitumor activity of mAbs can be significantly increased. Currently, identifying and developing therapeutic agents that enhance ADCC is a growing area of research. Combining existing tumor-targeting mAbs and ADCC-promoting agents that stimulate effector cells will translate to greater clinical responses. In this review, we discuss strategies for enhancing ADCC and emphasize the potential of combination treatments that include US Food and Drug Administration-approved mAbs and immunostimulatory therapeutics.
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Affiliation(s)
- Narendiran Rajasekaran
- Division of Oncology, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - Cariad Chester
- Division of Oncology, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - Atsushi Yonezawa
- Division of Oncology, Stanford School of Medicine, Stanford University, Stanford, CA, USA
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Xing Zhao
- Division of Oncology, Stanford School of Medicine, Stanford University, Stanford, CA, USA
- Tissue Engineering and Stem Cells Research Center, Department of Immunology, Guiyang Medical University, Guiyang, Guizhou Province, People’s Republic of China
| | - Holbrook E Kohrt
- Division of Oncology, Stanford School of Medicine, Stanford University, Stanford, CA, USA
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Alvarez-Breckenridge CA, Choi BD, Suryadevara CM, Chiocca EA. Potentiating oncolytic viral therapy through an understanding of the initial immune responses to oncolytic viral infection. Curr Opin Virol 2015; 13:25-32. [PMID: 25846988 DOI: 10.1016/j.coviro.2015.03.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 03/17/2015] [Accepted: 03/19/2015] [Indexed: 10/23/2022]
Abstract
Despite the challenge of implementing oncolytic viral therapy into mainstream clinical use, the obstacles of early clinical trials have outlined numerous areas requiring additional investigation. In particular, the role of innate and adaptive immunity has received significant attention in this context. It is increasingly clear that a one-sided approach of either immune suppression or robust immune cell activation is not the answer for clinical success. Rather, recent studies are increasingly demonstrating the delicate balance between both anti-viral immune suppression and immune mediated tumor killing. In this review we focus on aspects of innate immune cell activation following oncolytic viral infection and how this response has the potential of bridging to the broader goal of viral mediated immunotherapy.
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Affiliation(s)
| | - Bryan D Choi
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Carter M Suryadevara
- Duke Brain Tumor Immunotherapy Program, Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - E Antonio Chiocca
- Department of Neurosurgery, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
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Abstract
Natural killer (NK) cells constitute a subtype of lymphocytes that initiate innate immune responses against tumors and virus-infected cells. The ability of NK cells to kill target cells or to produce cytokines depends on the balance between signals from activating and inhibitory cell-surface receptors. Therapies with NK cells involve activation of endogenous NK cells and/or exogenous transfer by hematopoietic stem cell transplantation/adoptive cell therapy. To exploit the diverse functional abilities of NK cells for cancer immunotherapy, it is important to understand NK cell biology and the underlying regulatory mechanisms. The state of immune suppression prevalent in malignancies creates the need for innovative therapies. Oncolytic viruses are novel anticancer agents showing selective tropism for tumor cells and lacking pathogenicity in humans, but the use of oncolytic virotherapy (OVT) presents multiple challenges. An increasing body of evidence suggests that the host immune response may critically influence the outcome of OVT. Classically, the immune system is thought to limit the efficacy of therapy through virus clearance mediated by innate immune effectors or through adaptive antiviral immune responses eliminating infected cells. Effective strategies do need to be designed in OVT to circumvent the early antiviral activity of NK cells and to augment late NK-cell-mediated antitumor responses. The intrinsic immunostimulating capacity of oncolytic viruses and the possibility of engineering them to express heterologous immunostimulatory molecules (eg, cytokines) support the use of these agents to enhance antitumor immune responses besides inducing direct oncolytic effects. OVT has indeed shown promising therapeutic outcomes in various clinical trials. Here, we review the biology of NK cells, strategies involving NK cells for achieving cancer therapy, and, more particularly, the emerging role of NK cells in OVT.
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Affiliation(s)
- Rauf Bhat
- Division of Tumor Virology, German Cancer Research Center, Heidelberg, Germany
| | - Jean Rommelaere
- Division of Tumor Virology, German Cancer Research Center, Heidelberg, Germany
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Clements DR, Sterea AM, Kim Y, Helson E, Dean CA, Nunokawa A, Coyle KM, Sharif T, Marcato P, Gujar SA, Lee PWK. Newly recruited CD11b+, GR-1+, Ly6C(high) myeloid cells augment tumor-associated immunosuppression immediately following the therapeutic administration of oncolytic reovirus. THE JOURNAL OF IMMUNOLOGY 2015; 194:4397-412. [PMID: 25825443 DOI: 10.4049/jimmunol.1402132] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 03/04/2015] [Indexed: 12/31/2022]
Abstract
Tumor-associated immunosuppression aids cancer cells to escape immune-mediated attack and subsequent elimination. Recently, however, many oncolytic viruses, including reovirus, have been reported to overturn such immunosuppression and promote the development of a clinically desired antitumor immunity, which is known to promote favorable patient outcomes. Contrary to this existing paradigm, in this article we demonstrate that reovirus augments tumor-associated immunosuppression immediately following its therapeutic administration. Our data show that reovirus induces preferential differentiation of highly suppressive CD11b(+), Gr-1(+), Ly6C(high) myeloid cells from bone marrow hematopoietic progenitor cells. Furthermore, reovirus administration in tumor-bearing hosts drives time-dependent recruitment of CD11b(+), Gr-1(+), Ly6C(high) myeloid cells in the tumor milieu, which is further supported by virus-induced increased expression of numerous immune factors involved in myeloid-derived suppressor cell survival and trafficking. Most importantly, CD11b(+), Gr-1(+), Ly6C(high) myeloid cells specifically potentiate the suppression of T cell proliferation and are associated with the absence of IFN-γ response in the tumor microenvironment early during oncotherapy. Considering that the qualitative traits of a specific antitumor immunity are largely dictated by the immunological events that precede its development, our findings are of critical importance and must be considered while devising complementary interventions aimed at promoting the optimum efficacy of oncolytic virus-based anticancer immunotherapies.
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Affiliation(s)
- Derek R Clements
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Andra M Sterea
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Youra Kim
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Erin Helson
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Cheryl A Dean
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Anna Nunokawa
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Krysta Mila Coyle
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Tanveer Sharif
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Paola Marcato
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Shashi A Gujar
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and Strategy and Organizational Performance, Izaak Walton Killiam Health Centre, Halifax, Nova Scotia, Canada B3K 6R8
| | - Patrick W K Lee
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
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Chakrabarty R, Tran H, Selvaggi G, Hagerman A, Thompson B, Coffey M. The oncolytic virus, pelareorep, as a novel anticancer agent: a review. Invest New Drugs 2015; 33:761-74. [PMID: 25693885 DOI: 10.1007/s10637-015-0216-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/04/2015] [Indexed: 12/23/2022]
Abstract
Pelareorep (REOLYSIN®) is an investigational new drug, a proprietary formulation consisting of a live, replication-competent, naturally occurring Reovirus Type 3 Dearing strain. Through several preclinical studies it was determined that reovirus can exhibit profound cytotoxic effects on cancer cells predominantly with an activated RAS-signalling pathway. Moreover, it was discovered that reoviruses can "hitchhike" on peripheral blood mononuclear cells and dendritic cells, thereby evading neutralizing antibodies of the host immune system. Cell carriage, targeted delivery, triggering host immune response and other inherent characteristics of the reovirus led to its further advancement into cancer therapy. When injected into Sprague-Dawley rats, the viral routes of clearance, predominantly through the spleen and liver, remained consistent with earlier studies. Toxicology findings were considered incidental and not associated with pelareorep when tested in animal models. Pelareorep demonstrated a high level of homogeneity at the amino acid level and genetic stability when compared to the master and working virus banks. The drug is manufactured in a 100 L bioreactor after which it is purified and formulated for use in pre-clinical, clinical and research studies. Over the past few decades, we have witnessed a paradigm shift from conventional therapy to the conceivable use of oncolytic viruses for the treatment of cancer. This review will detail pre-clinical evidence of anticancer activity of pelareorep that has led to extensive clinical development. Several Phase I-II clinical trials have been completed or are ongoing in cancer patients on a broad spectrum of solid tumors and hematologic malignancies.
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Affiliation(s)
- Romit Chakrabarty
- Oncolytics Biotech Inc., 210, 1167 Kensington Cr. NW, Calgary, AB, T2N 1X7, Canada
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Predicting immunogenic tumour mutations by combining mass spectrometry and exome sequencing. Nature 2015; 515:572-6. [PMID: 25428506 DOI: 10.1038/nature14001] [Citation(s) in RCA: 859] [Impact Index Per Article: 95.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 10/28/2014] [Indexed: 12/12/2022]
Abstract
Human tumours typically harbour a remarkable number of somatic mutations. If presented on major histocompatibility complex class I molecules (MHCI), peptides containing these mutations could potentially be immunogenic as they should be recognized as 'non-self' neo-antigens by the adaptive immune system. Recent work has confirmed that mutant peptides can serve as T-cell epitopes. However, few mutant epitopes have been described because their discovery required the laborious screening of patient tumour-infiltrating lymphocytes for their ability to recognize antigen libraries constructed following tumour exome sequencing. We sought to simplify the discovery of immunogenic mutant peptides by characterizing their general properties. We developed an approach that combines whole-exome and transcriptome sequencing analysis with mass spectrometry to identify neo-epitopes in two widely used murine tumour models. Of the >1,300 amino acid changes identified, ∼13% were predicted to bind MHCI, a small fraction of which were confirmed by mass spectrometry. The peptides were then structurally modelled bound to MHCI. Mutations that were solvent-exposed and therefore accessible to T-cell antigen receptors were predicted to be immunogenic. Vaccination of mice confirmed the approach, with each predicted immunogenic peptide yielding therapeutically active T-cell responses. The predictions also enabled the generation of peptide-MHCI dextramers that could be used to monitor the kinetics and distribution of the anti-tumour T-cell response before and after vaccination. These findings indicate that a suitable prediction algorithm may provide an approach for the pharmacodynamic monitoring of T-cell responses as well as for the development of personalized vaccines in cancer patients.
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Abstract
Current mainstays in cancer treatment such as chemotherapy, radiation therapy, hormonal manipulation, and even targeted therapies such as Trastuzumab (herceptin) for breast cancer or Iressa (gefitinib) for non-small cell lung cancer among others are limited by lack of efficacy, cellular resistance, and toxicity. Dose escalation and combination therapies designed to overcome resistance and increase efficacy are limited by a narrow therapeutic index. Oncolytic viruses are one such group of new biological therapeutics that appears to have a wide spectrum of anticancer activity with minimal human toxicity. Since the malignant phenotype of tumors is the culmination of multiple mutations that occur in genes eventually leading to aberrant signaling pathways, oncolytic viruses either natural or engineered specifically target tumor cells taking advantage of this abnormal cellular signaling for their replication. Reovirus is one such naturally occurring double-stranded RNA virus that exploits altered signaling pathways (including Ras) in a myriad of cancers. The ability of reovirus to infect and lyse tumors under in vitro, in vivo, and ex vivo conditions has been well documented previously by us and others. The major mechanism of reovirus oncolysis of cancer cells has been shown to occur through apoptosis with autophagy taking place during this process in certain cancers. In addition, the synergistic antitumor effects of reovirus in combination with radiation or chemotherapy have also been demonstrated for reovirus resistant and moderately sensitive tumors. Recent progress in our understanding of viral immunology in the tumor microenvironment has diverted interest in exploring immunologic mechanisms to overcome resistance exhibited by chemotherapeutic drugs in cancer. Thus, currently several investigations are focusing on immune potentiating of reovirus for maximal tumor targeting. This chapter therefore has concentrated on immunologic cell death induction with reovirus as a novel approach to cancer therapy used under in vitro and in vivo conditions, as well as in a clinical setting. Reovirus phase I clinical trials have shown indications of efficacy, and several phase II/III trials are ongoing at present. Reovirus's extensive preclinical efficacy, replication competency, and low toxicity profile in humans have placed it as an attractive anticancer therapeutic for ongoing clinical testing that are highlighted in this chapter.
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