1
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Zhang J, Chen J, Lin K. Immunogenic cell death-based oncolytic virus therapy: a sharp sword of tumor immunotherapy. Eur J Pharmacol 2024:176913. [PMID: 39154830 DOI: 10.1016/j.ejphar.2024.176913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/30/2024] [Accepted: 08/15/2024] [Indexed: 08/20/2024]
Abstract
Tumor immunotherapy, especially immune checkpoint inhibitors (ICIs), has been applied in clinical practice, but low response to immune therapies remains a thorny issue. Oncolytic viruses (OVs) are considered promising for cancer treatment because they can selectively target and destroy tumor cells followed by spreading to nearby tumor tissues for a new round of infection. Immunogenic cell death (ICD), which is the major mechanism of OVs' anticancer effects, is induced by endoplasmic reticulum stress and reactive oxygen species overload after virus infection and release specific damage-associated molecular patterns (DAMPs) in different types of tumor cells to transform the tumor microenvironment from "cold" to "hot". In this paper, we broadly define ICD as those types of cell death that is immunogenic, and describe their signaling pathways respectively. Focusing on ICD, we also elucidate the advantages and disadvantages of recent combination therapies and their future prospects.
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Affiliation(s)
- Jingyu Zhang
- The First Affiliated Hospital of Wenzhou Medical University, The First Clinical College of Wenzhou Medical University, Wenzhou, 325001, China
| | - Jiahe Chen
- The First Affiliated Hospital of Wenzhou Medical University, The First Clinical College of Wenzhou Medical University, Wenzhou, 325001, China
| | - Kezhi Lin
- Wenzhou Key Laboratory of Cancer-related Pathogens and Immunity, Experiential Center of Basic Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325001, China.
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2
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Raja K. Comments on "Oncolytic virotherapy for oral squamous cell carcinoma using replication-competent viruses". Oral Oncol 2024; 155:106897. [PMID: 38901367 DOI: 10.1016/j.oraloncology.2024.106897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/22/2024]
Affiliation(s)
- Kannan Raja
- Center for Global Health Research, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai 602105, India.
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3
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Kiaheyrati N, Babaei A, Ranji R, Bahadoran E, Taheri S, Farokhpour Z. Cancer therapy with the viral and bacterial pathogens: The past enemies can be considered the present allies. Life Sci 2024; 349:122734. [PMID: 38788973 DOI: 10.1016/j.lfs.2024.122734] [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: 03/02/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024]
Abstract
Cancer continues to be one of the leading causes of mortality worldwide despite significant advancements in cancer treatment. Many difficulties have arisen as a result of the detrimental consequences of chemotherapy and radiotherapy as a common cancer therapy, such as drug inability to penetrate deep tumor tissue, and also the drug resistance in tumor cells continues to be a major concern. These obstacles have increased the need for the development of new techniques that are more selective and effective against cancer cells. Bacterial-based therapies and the use of oncolytic viruses can suppress cancer in comparison to other cancer medications. The tumor microenvironment is susceptible to bacterial accumulation and proliferation, which can trigger immune responses against the tumor. Oncolytic viruses (OVs) have also gained considerable attention in recent years because of their potential capability to selectively target and induce apoptosis in cancer cells. This review aims to provide a comprehensive summary of the latest literature on the role of bacteria and viruses in cancer treatment, discusses the limitations and challenges, outlines various strategies, summarizes recent preclinical and clinical trials, and emphasizes the importance of optimizing current strategies for better clinical outcomes.
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Affiliation(s)
- Niloofar Kiaheyrati
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran; Department of Microbiology and Immunology, School of Medicine, Qazvin University of Medical Science, Qazvin, Iran
| | - Abouzar Babaei
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran; Department of Microbiology and Immunology, School of Medicine, Qazvin University of Medical Science, Qazvin, Iran.
| | - Reza Ranji
- Department of Genetics, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ensiyeh Bahadoran
- School of Medicine, Qazvin University of Medical Science, Qazvin, Iran
| | - Shiva Taheri
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Zahra Farokhpour
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
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4
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Yang A, Wang X, Jin L, Luo H, Yang Z, Yang N, Lin X, Yang Y, Zhao X, He Z. Human umbilical cord mesenchymal stem cell exosomes deliver potent oncolytic reovirus to acute myeloid leukemia cells. Virology 2024; 598:110171. [PMID: 39018682 DOI: 10.1016/j.virol.2024.110171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 07/02/2024] [Accepted: 07/08/2024] [Indexed: 07/19/2024]
Abstract
In addition to chemotherapy, oncolytic viruses are an efficient treatment for acute myeloid leukemia (AML). Like other oncolytic viruses, the anti-tumor efficacy of reovirus when administered intravenously is reduced due to the presence of neutralizing antibodies. In this study, we evaluated the role of exosomes in human umbilical cord-derived mesenchymal stem cells (UC-MSCs) to deliver reovirus to AML cells. We show that UC-MSCs loaded with reovirus can deliver reovirus to tumor cells without cellular contact. We further demonstrate that the exosome inhibitor, GW4869, inhibits the release of exosomes as well as inhibited the transfer of reovirus from UC-MSCs to tumor cells. Mechanistically, we show that exosomes derived from reovirus-infected UC-MSCs (MSCREO-EXOs) have a tumor lysis effect and transmit reovirus to tumor cells mainly through clathrin-mediated endocytosis (CME) and macropinocytosis. In addition, we demonstrate the feasibility of using MSC-derived exosomes (MSC-EXOs) as a reovirus carrier to exert an anti-tumor effect on AML cells. Collectively, our data indicate that UC-MSCs transfer reovirus to AML cells via exosome release and prompt further study of MSC-EXOs as a potential reovirus carrier to treat AML.
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Affiliation(s)
- Anqing Yang
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xianyao Wang
- Department of Immunology, College of Basic Medical Sciences, Zunyi Medical University, Zunyi, Gui-zhou, China
| | - Lu Jin
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Heyong Luo
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhiru Yang
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Na Yang
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiaojin Lin
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Biology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yuxin Yang
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xing Zhao
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.
| | - Zhixu He
- Stem Cell and Tissue Engineering Research Center/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Immunology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Key Laboratory of Adult Stem Cell Translational Research, Chinese Academy of Medical Sciences, Guiyang, China.
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5
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Stergiopoulos GM, Concilio SC, Galanis E. An Update on the Clinical Status, Challenges, and Future Directions of Oncolytic Virotherapy for Malignant Gliomas. Curr Treat Options Oncol 2024; 25:952-991. [PMID: 38896326 DOI: 10.1007/s11864-024-01211-6] [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] [Accepted: 04/24/2024] [Indexed: 06/21/2024]
Abstract
OPINION STATEMENT Malignant gliomas are common central nervous system tumors that pose a significant clinical challenge due to the lack of effective treatments. Glioblastoma (GBM), a grade 4 malignant glioma, is the most prevalent primary malignant brain tumor and is associated with poor prognosis. Current clinical trials are exploring various strategies to combat GBM, with oncolytic viruses (OVs) appearing particularly promising. In addition to ongoing and recently completed clinical trials, one OV (Teserpaturev, Delytact®) received provisional approval for GBM treatment in Japan. OVs are designed to selectively target and eliminate cancer cells while promoting changes in the tumor microenvironment that can trigger and support long-lasting anti-tumor immunity. OVs offer the potential to remodel the tumor microenvironment and reverse systemic immune exhaustion. Additionally, an increasing number of OVs are armed with immunomodulatory payloads or combined with immunotherapy approaches in an effort to promote anti-tumor responses in a tumor-targeted manner. Recently completed oncolytic virotherapy trials can guide the way for future treatment individualization through patient preselection, enhancing the likelihood of achieving the highest possible clinical success. These trials also offer valuable insight into the numerous challenges inherent in malignant glioma treatment, some of which OVs can help overcome.
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Affiliation(s)
| | | | - Evanthia Galanis
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Oncology, Mayo Clinic, Rochester, MN, USA.
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Liu D, Yu L, Rong H, Liu L, Yin J. Engineering Microorganisms for Cancer Immunotherapy. Adv Healthc Mater 2024; 13:e2304649. [PMID: 38598792 DOI: 10.1002/adhm.202304649] [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: 12/28/2023] [Revised: 04/02/2024] [Indexed: 04/12/2024]
Abstract
Cancer immunotherapy presents a promising approach to fight against cancer by utilizing the immune system. Recently, engineered microorganisms have emerged as a potential strategy in cancer immunotherapy. These microorganisms, including bacteria and viruses, can be designed and modified using synthetic biology and genetic engineering techniques to target cancer cells and modulate the immune system. This review delves into various microorganism-based therapies for cancer immunotherapy, encompassing strategies for enhancing efficacy while ensuring safety and ethical considerations. The development of these therapies holds immense potential in offering innovative personalized treatments for cancer.
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Affiliation(s)
- Dingkang Liu
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, No. 639 Longmian Avenue, Nanjing, 211198, China
| | - Lichao Yu
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, No. 639 Longmian Avenue, Nanjing, 211198, China
| | - Haibo Rong
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing, 210009, China
| | - Lubin Liu
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, No. 120 Longshan Road, Chongqing, 401147, China
| | - Jun Yin
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, No. 639 Longmian Avenue, Nanjing, 211198, China
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7
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Li D, Mo R, Li X, Cheng R, Xie J, Li H, Yang Y, Li S, Li H, Yan Z, Wei S, Idris A, Li X, Feng R. Mammalian orthoreovirus capsid protein σ3 antagonizes RLR-mediated antiviral responses by degrading MAVS. mSphere 2024; 9:e0023624. [PMID: 38757961 PMCID: PMC11332348 DOI: 10.1128/msphere.00236-24] [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: 03/21/2024] [Accepted: 04/02/2024] [Indexed: 05/18/2024] Open
Abstract
Mammalian orthoreovirus (MRV) outer capsid protein σ3 is a multifunctional protein containing a double-stranded RNA-binding domain, which facilitates viral entry and assembly. We reasoned that σ3 has an innate immune evasion function. Here, we show that σ3 protein localizes in the mitochondria and interacts with mitochondrial antiviral signaling protein (MAVS) to activate the intrinsic mitochondria-mediated apoptotic pathway. Consequently, σ3 protein promotes the degradation of MAVS through the intrinsic caspase-9/caspase-3 apoptotic pathway. Moreover, σ3 protein can also inhibit the expression of the components of the RNA-sensing retinoic acid-inducible gene (RIG)-like receptor (RLR) signaling pathway to block antiviral type I interferon responses. Mechanistically, σ3 inhibits RIG-I and melanoma differentiation-associated gene 5 expression is independent of its inhibitory effect on MAVS. Overall, we demonstrate that the MRV σ3 protein plays a vital role in negatively regulating the RLR signaling pathway to inhibit antiviral responses. This enables MRV to evade host defenses to facilitate its own replication providing a target for the development of effective antiviral drugs against MRV. IMPORTANCE Mammalian orthoreovirus (MRV) is an important zoonotic pathogen, but the regulatory role of its viral proteins in retinoic acid-inducible gene-like receptor (RLR)-mediated antiviral responses is still poorly understood. Herein, we show that MRV σ3 protein co-localizes with mitochondrial antiviral signaling protein (MAVS) in the mitochondria and promotes the mitochondria-mediated intrinsic apoptotic pathway to cleave and consequently degrade MAVS. Furthermore, tryptophan at position 133 of σ3 protein plays a key role in the degradation of MAVS. Importantly, we show that MRV outer capsid protein σ3 is a key factor in antagonizing RLR-mediated antiviral responses, providing evidence to better unravel the infection and transmission mechanisms of MRV.
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Affiliation(s)
- Dianyu Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Rongqian Mo
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Xiaoyi Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Rongrong Cheng
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Jingying Xie
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Hongshan Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Yanmei Yang
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Shasha Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Huixia Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Engineering Research Center of Key Technology and Industrialization of Cell-based Vaccine, Ministry of Education, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
| | - Zhenfang Yan
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Suocheng Wei
- College of Life science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Adi Idris
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Xiangrong Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Engineering Research Center of Key Technology and Industrialization of Cell-based Vaccine, Ministry of Education, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
| | - Ruofei Feng
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
- Engineering Research Center of Key Technology and Industrialization of Cell-based Vaccine, Ministry of Education, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
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8
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Baabdulla AA, Hillen T. Oscillations in a Spatial Oncolytic Virus Model. Bull Math Biol 2024; 86:93. [PMID: 38896363 DOI: 10.1007/s11538-024-01322-z] [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: 12/19/2023] [Accepted: 05/31/2024] [Indexed: 06/21/2024]
Abstract
Virotherapy treatment is a new and promising target therapy that selectively attacks cancer cells without harming normal cells. Mathematical models of oncolytic viruses have shown predator-prey like oscillatory patterns as result of an underlying Hopf bifurcation. In a spatial context, these oscillations can lead to different spatio-temporal phenomena such as hollow-ring patterns, target patterns, and dispersed patterns. In this paper we continue the systematic analysis of these spatial oscillations and discuss their relevance in the clinical context. We consider a bifurcation analysis of a spatially explicit reaction-diffusion model to find the above mentioned spatio-temporal virus infection patterns. The desired pattern for tumor eradication is the hollow ring pattern and we find exact conditions for its occurrence. Moreover, we derive the minimal speed of travelling invasion waves for the cancer and for the oncolytic virus. Our numerical simulations in 2-D reveal complex spatial interactions of the virus infection and a new phenomenon of a periodic peak splitting. An effect that we cannot explain with our current methods.
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Affiliation(s)
- Arwa Abdulla Baabdulla
- Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Canada.
| | - Thomas Hillen
- Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Canada
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9
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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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10
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Zheng R, Liu X, Zhang Y, Liu Y, Wang Y, Guo S, Jin X, Zhang J, Guan Y, Liu Y. Frontiers and future of immunotherapy for pancreatic cancer: from molecular mechanisms to clinical application. Front Immunol 2024; 15:1383978. [PMID: 38756774 PMCID: PMC11096556 DOI: 10.3389/fimmu.2024.1383978] [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: 02/08/2024] [Accepted: 04/22/2024] [Indexed: 05/18/2024] Open
Abstract
Pancreatic cancer is a highly aggressive malignant tumor, that is becoming increasingly common in recent years. Despite advances in intensive treatment modalities including surgery, radiotherapy, biological therapy, and targeted therapy, the overall survival rate has not significantly improved in patients with pancreatic cancer. This may be attributed to the insidious onset, unknown pathophysiology, and poor prognosis of the disease. It is therefore essential to identify and develop more effective and safer treatments for pancreatic cancer. Tumor immunotherapy is the new and fourth pillar of anti-tumor therapy after surgery, radiotherapy, and chemotherapy. Significant progress has made in the use of immunotherapy for a wide variety of malignant tumors in recent years; a breakthrough has also been made in the treatment of pancreatic cancer. This review describes the advances in immune checkpoint inhibitors, cancer vaccines, adoptive cell therapy, oncolytic virus, and matrix-depletion therapies for the treatment of pancreatic cancer. At the same time, some new potential biomarkers and potential immunotherapy combinations for pancreatic cancer are discussed. The molecular mechanisms of various immunotherapies have also been elucidated, and their clinical applications have been highlighted. The current challenges associated with immunotherapy and proposed strategies that hold promise in overcoming these limitations have also been discussed, with the aim of offering new insights into immunotherapy for pancreatic cancer.
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Affiliation(s)
- Rui Zheng
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Xiaobin Liu
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Yufu Zhang
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Yan’an University, Yan’an, Shaanxi, China
| | - Yongxian Liu
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Yaping Wang
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Shutong Guo
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Xiaoyan Jin
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Jing Zhang
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Yuehong Guan
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
| | - Yusi Liu
- Department of Medical Immunology, Medical College of Yan’an University, Yanan, Shaanxi, China
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11
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Calderón-Peláez MA, Maradei Anaya SJ, Bedoya-Rodríguez IJ, González-Ipuz KG, Vera-Palacios D, Buitrago IV, Castellanos JE, Velandia-Romero ML. Zika Virus: A Neurotropic Warrior against High-Grade Gliomas-Unveiling Its Potential for Oncolytic Virotherapy. Viruses 2024; 16:561. [PMID: 38675903 PMCID: PMC11055012 DOI: 10.3390/v16040561] [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: 01/12/2024] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 04/28/2024] Open
Abstract
Gliomas account for approximately 75-80% of all malignant primary tumors in the central nervous system (CNS), with glioblastoma multiforme (GBM) considered the deadliest. Despite aggressive treatment involving a combination of chemotherapy, radiotherapy, and surgical intervention, patients with GBM have limited survival rates of 2 to 5 years, accompanied by a significant decline in their quality of life. In recent years, novel management strategies have emerged, such as immunotherapy, which includes the development of vaccines or T cells with chimeric antigen receptors, and oncolytic virotherapy (OVT), wherein wild type (WT) or genetically modified viruses are utilized to selectively lyse tumor cells. In vitro and in vivo studies have shown that the Zika virus (ZIKV) can infect glioma cells and induce a robust oncolytic activity. Consequently, interest in exploring this virus as a potential oncolytic virus (OV) for high-grade gliomas has surged. Given that ZIKV actively circulates in Colombia, evaluating its neurotropic and oncolytic capabilities holds considerable national and international importance, as it may emerge as an alternative for treating highly complex gliomas. Therefore, this literature review outlines the generalities of GBM, the factors determining ZIKV's specific tropism for nervous tissue, and its oncolytic capacity. Additionally, we briefly present the progress in preclinical studies supporting the use of ZIKV as an OVT for gliomas.
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Affiliation(s)
- María-Angélica Calderón-Peláez
- Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia; (M.-A.C.-P.); (S.J.M.A.); (J.E.C.)
| | - Silvia Juliana Maradei Anaya
- Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia; (M.-A.C.-P.); (S.J.M.A.); (J.E.C.)
| | | | - Karol Gabriela González-Ipuz
- Semillero ViroLogic 2020–2022, Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia
| | - Daniela Vera-Palacios
- Semillero ViroLogic 2020–2022, Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia
| | - Isabella Victoria Buitrago
- Semillero ViroLogic 2020–2022, Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia
| | - Jaime E. Castellanos
- Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia; (M.-A.C.-P.); (S.J.M.A.); (J.E.C.)
| | - Myriam L. Velandia-Romero
- Virology Group, Vice-Chancellor of Research, Universidad El Bosque, Bogotá 110121, Colombia; (M.-A.C.-P.); (S.J.M.A.); (J.E.C.)
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12
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Lim Y, Park J, Lim JE, Park M, Koh SK, Lee M, Kim SK, Lee SH, Song KH, Park DG, Kim HY, Jeong BC, Cho D. Evaluating a combination treatment of NK cells and reovirus against bladder cancer cells using an in vitro assay to simulate intravesical therapy. Sci Rep 2024; 14:7390. [PMID: 38548803 PMCID: PMC10979019 DOI: 10.1038/s41598-024-56297-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 03/05/2024] [Indexed: 04/01/2024] Open
Abstract
Intravesical treatment using either reovirus or natural killer (NK) cells serves as an efficient strategy for the treatment of bladder cancer cells (BCCs); however, corresponding monotherapies have often shown modest cytotoxicity. The potential of a locoregional combination using high-dose reovirus and NK cell therapy in an intravesical approach has not yet been studied. In this study, we evaluated the effectiveness of reoviruses and expanded NK cells (eNK) as potential strategies for the treatment of bladder cancer. The anti-tumor effects of mono-treatment with reovirus type 3 Dearing strain (RC402 and RP116) and in combination with interleukin (IL)-18/-21-pretreated eNK cells were investigated on BCC lines (5637, HT-1376, and 253J-BV) using intravesical therapy to simulate in vitro model. RP116 and IL-18/-21-pretreated eNK cells exhibited effective cytotoxicity against grade 1 carcinoma (5637 cells) when used alone, but not against HT-1376 (grade 2 carcinoma) and 253J-BV cells (derived from a metastatic site). Notably, combining RP116 with IL-18/-21-pretreated eNK cells displayed effective cytotoxicity against both HT-1376 and 253J-BV cells. Our findings underscore the potential of a combination therapy using reoviruses and NK cells as a promising strategy for treating bladder cancer.
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Affiliation(s)
- Yuree Lim
- Department of Biopharmaceutical Convergence, Sungkyunkwan University (SKKU), Suwon, Korea
| | - Jeehun Park
- Department of Molecular Bioscience, College of Biomedical Science, Kangwon National University, Chuncheon, Korea
| | - Joung Eun Lim
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Minji Park
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Seung Kwon Koh
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Mijeong Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Sang-Ki Kim
- Department of Companion & Laboratory Animal Science, Kongju National University, Yesan, Korea
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | | | - Dong Guk Park
- ViroCure Inc., Seoul, Republic of Korea
- Department of Surgery, School of Medicine, Dankook University, Cheonan, South Korea
| | - Hyun-Young Kim
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Byong Chang Jeong
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.
| | - Duck Cho
- Department of Biopharmaceutical Convergence, Sungkyunkwan University (SKKU), Suwon, Korea.
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea.
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13
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Chowaniec H, Ślubowska A, Mroczek M, Borowczyk M, Braszka M, Dworacki G, Dobosz P, Wichtowski M. New hopes for the breast cancer treatment: perspectives on the oncolytic virus therapy. Front Immunol 2024; 15:1375433. [PMID: 38576614 PMCID: PMC10991781 DOI: 10.3389/fimmu.2024.1375433] [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: 01/23/2024] [Accepted: 03/11/2024] [Indexed: 04/06/2024] Open
Abstract
Oncolytic virus (OV) therapy has emerged as a promising frontier in cancer treatment, especially for solid tumours. While immunotherapies like immune checkpoint inhibitors and CAR-T cells have demonstrated impressive results, their limitations in inducing complete tumour regression have spurred researchers to explore new approaches targeting tumours resistant to current immunotherapies. OVs, both natural and genetically engineered, selectively replicate within cancer cells, inducing their lysis while sparing normal tissues. Recent advancements in clinical research and genetic engineering have enabled the development of targeted viruses that modify the tumour microenvironment, triggering anti-tumour immune responses and exhibiting synergistic effects with other cancer therapies. Several OVs have been studied for breast cancer treatment, including adenovirus, protoparvovirus, vaccinia virus, reovirus, and herpes simplex virus type I (HSV-1). These viruses have been modified or engineered to enhance their tumour-selective replication, reduce toxicity, and improve oncolytic properties.Newer generations of OVs, such as Oncoviron and Delta-24-RGD adenovirus, exhibit heightened replication selectivity and enhanced anticancer effects, particularly in breast cancer models. Clinical trials have explored the efficacy and safety of various OVs in treating different cancers, including melanoma, nasopharyngeal carcinoma, head and neck cancer, and gynecologic malignancies. Notably, Talimogene laherparepvec (T-VEC) and Oncorine have. been approved for advanced melanoma and nasopharyngeal carcinoma, respectively. However, adverse effects have been reported in some cases, including flu-like symptoms and rare instances of severe complications such as fistula formation. Although no OV has been approved specifically for breast cancer treatment, ongoing preclinical clinical trials focus on four groups of viruses. While mild adverse effects like low-grade fever and nausea have been observed, the effectiveness of OV monotherapy in breast cancer remains insufficient. Combination strategies integrating OVs with chemotherapy, radiotherapy, or immunotherapy, show promise in improving therapeutic outcomes. Oncolytic virus therapy holds substantial potential in breast cancer treatment, demonstrating safety in trials. Multi-approach strategies combining OVs with conventional therapies exhibit more promising therapeutic effects than monotherapy, signalling a hopeful future for OV-based breast cancer treatments.
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Affiliation(s)
- Hanna Chowaniec
- Department of Immunology, Poznan University of Medical Sciences, Poznan, Poland
| | - Antonina Ślubowska
- Department of Biostatistics and Research Methodology, Faculty of Medicine, Collegium Medicum, Cardinal Stefan Wyszynski University of Warsaw, Warsaw, Poland
| | - Magdalena Mroczek
- Department of Neurology, University Hospital Basel, Univeristy of Basel, Basel, Switzerland
| | - Martyna Borowczyk
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Małgorzata Braszka
- Faculty of Medical Sciences, University College London Medical School, London, United Kingdom
| | - Grzegorz Dworacki
- Department of Immunology, Poznan University of Medical Sciences, Poznan, Poland
- Chair of Patomorphology and Clinical Immunology, Poznań University of Medical Sciences, Poznan, Poland
| | - Paula Dobosz
- University Centre of Cancer Diagnostics, Poznan University of Medical Sciences, Poznan, Poland
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Mateusz Wichtowski
- Surgical Oncology Clinic, Institute of Oncology, Poznan University of Medical Sciences, Poznan, Poland
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14
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Zhao B, Hu L, Kaundal S, Neetu N, Lee CH, Somoulay X, Sankaran B, Taylor GM, Dermody TS, Venkataram Prasad BV. Structure of orthoreovirus RNA chaperone σNS, a component of viral replication factories. Nat Commun 2024; 15:2460. [PMID: 38503747 PMCID: PMC10950856 DOI: 10.1038/s41467-024-46627-8] [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: 08/25/2023] [Accepted: 02/29/2024] [Indexed: 03/21/2024] Open
Abstract
The mammalian orthoreovirus (reovirus) σNS protein is required for formation of replication compartments that support viral genome replication and capsid assembly. Despite its functional importance, a mechanistic understanding of σNS is lacking. We conducted structural and biochemical analyses of a σNS mutant that forms dimers instead of the higher-order oligomers formed by wildtype (WT) σNS. The crystal structure shows that dimers interact with each other using N-terminal arms to form a helical assembly resembling WT σNS filaments in complex with RNA observed using cryo-EM. The interior of the helical assembly is of appropriate diameter to bind RNA. The helical assembly is disrupted by bile acids, which bind to the same site as the N-terminal arm. This finding suggests that the N-terminal arm functions in conferring context-dependent oligomeric states of σNS, which is supported by the structure of σNS lacking an N-terminal arm. We further observed that σNS has RNA chaperone activity likely essential for presenting mRNA to the viral polymerase for genome replication. This activity is reduced by bile acids and abolished by N-terminal arm deletion, suggesting that the activity requires formation of σNS oligomers. Our studies provide structural and mechanistic insights into the function of σNS in reovirus replication.
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Affiliation(s)
- Boyang Zhao
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Liya Hu
- Verna and Marrs Mclean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, TX, USA
| | - Soni Kaundal
- Verna and Marrs Mclean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, TX, USA
| | - Neetu Neetu
- Verna and Marrs Mclean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, TX, USA
| | - Christopher H Lee
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburg, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburg, PA, USA
| | - Xayathed Somoulay
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburg, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburg, PA, USA
| | - Banumathi Sankaran
- Berkeley Center for Structural Biology, Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley Laboratory, Berkeley, CA, USA
| | - Gwen M Taylor
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburg, PA, USA
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburg, PA, USA
| | - Terence S Dermody
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburg, PA, USA.
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburg, PA, USA.
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburg, PA, USA.
| | - B V Venkataram Prasad
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA.
- Verna and Marrs Mclean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, TX, USA.
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15
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Groeneveldt C, Kinderman P, Griffioen L, Rensing O, Labrie C, van den Wollenberg DJ, Hoeben RC, Coffey M, Loghmani H, Verdegaal EM, Welters MJ, van der Burg SH, van Hall T, van Montfoort N. Neutralizing Antibodies Impair the Oncolytic Efficacy of Reovirus but Permit Effective Combination with T cell-Based Immunotherapies. Cancer Immunol Res 2024; 12:334-349. [PMID: 38194598 PMCID: PMC10911706 DOI: 10.1158/2326-6066.cir-23-0480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/31/2023] [Accepted: 01/05/2024] [Indexed: 01/11/2024]
Abstract
Reovirus type 3 Dearing (Reo), manufactured for clinical application as pelareorep, is an attractive anticancer agent under evaluation in multiple phase 2 clinical trials for the treatment of solid tumors. It elicits its anticancer efficacy by inducing both oncolysis and intratumoral T-cell influx. Because most people have been preexposed to Reo, neutralizing antibodies (NAb) are prevalent in patients with cancer and might present a barrier to effective Reo therapy. Here, we tested serum of patients with cancer and healthy controls (n = 100) and confirmed that Reo NAbs are present in >80% of individuals. To investigate the effect of NAbs on both the oncolytic and the immunostimulatory efficacy of Reo, we established an experimental mouse model with Reo preexposure. The presence of preexposure-induced NAbs reduced Reo tumor infection and prevented Reo-mediated control of tumor growth after intratumoral Reo administration. In B cell-deficient mice, the lack of NAbs provided enhanced tumor growth control after Reo monotherapy, indicating that NAbs limit the oncolytic capacity of Reo. In immunocompetent mice, intratumoral T-cell influx was not affected by the presence of preexposure-induced NAbs and consequently, combinatorial immunotherapy strategies comprising Reo and T-cell engagers or checkpoint inhibitors remained effective in these settings, also after a clinically applied regimen of multiple intravenous pelareorep administrations. Altogether, our data indicate that NAbs hamper the oncolytic efficacy of Reo, but not its immunotherapeutic capacity. Given the high prevalence of seropositivity for Reo in patients with cancer, our data strongly advocate for the application of Reo as part of T cell-based immunotherapeutic strategies.
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Affiliation(s)
- Christianne Groeneveldt
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Priscilla Kinderman
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Lisa Griffioen
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Olivia Rensing
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Camilla Labrie
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Rob C. Hoeben
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Matt Coffey
- Oncolytics Biotech Incorporated, Calgary, Canada
| | | | - Els M.E. Verdegaal
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Marij J.P. Welters
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Sjoerd H. van der Burg
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Thorbald van Hall
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Nadine van Montfoort
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands
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16
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Volovat SR, Scripcariu DV, Vasilache IA, Stolniceanu CR, Volovat C, Augustin IG, Volovat CC, Ostafe MR, Andreea-Voichița SG, Bejusca-Vieriu T, Lungulescu CV, Sur D, Boboc D. Oncolytic Virotherapy: A New Paradigm in Cancer Immunotherapy. Int J Mol Sci 2024; 25:1180. [PMID: 38256250 PMCID: PMC10816814 DOI: 10.3390/ijms25021180] [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: 11/19/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Oncolytic viruses (OVs) are emerging as potential treatment options for cancer. Natural and genetically engineered viruses exhibit various antitumor mechanisms. OVs act by direct cytolysis, the potentiation of the immune system through antigen release, and the activation of inflammatory responses or indirectly by interference with different types of elements in the tumor microenvironment, modification of energy metabolism in tumor cells, and antiangiogenic action. The action of OVs is pleiotropic, and they show varied interactions with the host and tumor cells. An important impediment in oncolytic virotherapy is the journey of the virus into the tumor cells and the possibility of its binding to different biological and nonbiological vectors. OVs have been demonstrated to eliminate cancer cells that are resistant to standard treatments in many clinical trials for various cancers (melanoma, lung, and hepatic); however, there are several elements of resistance to the action of viruses per se. Therefore, it is necessary to evaluate the combination of OVs with other standard treatment modalities, such as chemotherapy, immunotherapy, targeted therapies, and cellular therapies, to increase the response rate. This review provides a comprehensive update on OVs, their use in oncolytic virotherapy, and the future prospects of this therapy alongside the standard therapies currently used in cancer treatment.
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Affiliation(s)
- Simona Ruxandra Volovat
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania; (S.R.V.); (M.-R.O.); (S.-G.A.-V.); (T.B.-V.)
| | - Dragos Viorel Scripcariu
- Department of Surgery, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania;
| | - Ingrid Andrada Vasilache
- Department of Obstetrics and Gynecology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Cati Raluca Stolniceanu
- Department of Biophysics and Medical Physics—Nuclear Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania;
| | - Constantin Volovat
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania; (S.R.V.); (M.-R.O.); (S.-G.A.-V.); (T.B.-V.)
| | | | | | - Madalina-Raluca Ostafe
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania; (S.R.V.); (M.-R.O.); (S.-G.A.-V.); (T.B.-V.)
| | - Slevoacă-Grigore Andreea-Voichița
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania; (S.R.V.); (M.-R.O.); (S.-G.A.-V.); (T.B.-V.)
| | - Toni Bejusca-Vieriu
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania; (S.R.V.); (M.-R.O.); (S.-G.A.-V.); (T.B.-V.)
| | | | - Daniel Sur
- 11th Department of Medical Oncology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania;
| | - Diana Boboc
- Department of Medical Oncology-Radiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Str., 700115 Iasi, Romania; (S.R.V.); (M.-R.O.); (S.-G.A.-V.); (T.B.-V.)
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17
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Cristi F, Walters M, Narayan N, Agopsowicz K, Hitt MM, Shmulevitz M. Improved oncolytic activity of a reovirus mutant that displays enhanced virus spread due to reduced cell attachment. Mol Ther Oncolytics 2023; 31:100743. [PMID: 38033400 PMCID: PMC10685048 DOI: 10.1016/j.omto.2023.100743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
Wild-type reovirus serotype 3 Dearing (T3wt), a non-pathogenic intestinal virus, has shown promise as a cancer therapy in clinical trials, but it would benefit from an increased potency. Given that T3wt is naturally adapted to the intestinal environment (rather than tumors), we genetically modified reovirus to improve its infectivity in cancer cells. Various reovirus mutants were created, and their oncolytic potency was evaluated in vitro using plaque size as a measure of virus fitness in cancer cells. Notably, Super Virus 5 (SV5), carrying five oncolytic mutations, displayed the largest plaques in breast cancer cells among the mutants tested, indicating the potential for enhancing oncolytic potency through the combination of mutations. Furthermore, in a HER2+ murine breast cancer model, mice treated with SV5 exhibited superior tumor reduction and increased survival compared with those treated with PBS or T3wt. Intriguingly, SV5 did not replicate faster than T3wt in cultured cells but demonstrated a farther spread relative to T3wt, attributed to its reduced attachment to cancer cells. These findings highlight the significance of increased virus spread as a crucial mechanism for improving oncolytic virus activity. Thus, genetic modifications of reovirus hold the potential for augmenting its efficacy in cancer therapy.
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Affiliation(s)
- Francisca Cristi
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton AB T6G 2E1, Canada
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton AB T6G 2E1, Canada
- Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton AB T6G 2E1, Canada
| | - Maiah Walters
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton AB T6G 2E1, Canada
| | - Nashae Narayan
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton AB T6G 2E1, Canada
| | - Kate Agopsowicz
- Department of Oncology, University of Alberta, Edmonton AB T6G 1Z2, Canada
- Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton AB T6G 2E1, Canada
| | - Mary M. Hitt
- Department of Oncology, University of Alberta, Edmonton AB T6G 1Z2, Canada
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton AB T6G 2E1, Canada
- Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton AB T6G 2E1, Canada
| | - Maya Shmulevitz
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton AB T6G 2E1, Canada
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton AB T6G 2E1, Canada
- Cancer Research Institute of Northern Alberta, University of Alberta, Edmonton AB T6G 2E1, Canada
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18
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Seyed-Khorrami SM, Azadi A, Rastegarvand N, Habibian A, Soleimanjahi H, Łos MJ. A promising future in cancer immunotherapy: Oncolytic viruses. Eur J Pharmacol 2023; 960:176063. [PMID: 37797673 DOI: 10.1016/j.ejphar.2023.176063] [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: 06/09/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023]
Abstract
Alongside the conventional methods, attention has been drawn to the use of immunotherapy-based methods for cancer treatment. Immunotherapy has developed as a therapeutic option that can be more specific with better outcomes in tumor treatment. It can boost or regulate the immune system behind the targeted virotherapy. Virotherapy is a kind of oncolytic immunotherapy that investigated broadly in cancer treatment in recent decades, due to its several advantages. According to recent advance in the field of understanding cancer cell biology and its occurrence, as well as increasing the knowledge about conditionally replicating oncolytic viruses and their destructive function in the tumor cells, nowadays, it is possible to apply this strategy in the treatment of malignancies. Relying on achievements in clinical trials of oncolytic viruses, we can certainly expect that this therapeutic perception can play a more central role in cancer treatment. In cancer treatment, combination therapy using oncolytic viruses alongside standard cancer treatment methods and other immunotherapy-based treatments can expect more promising results in the future.
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Affiliation(s)
| | - Arezou Azadi
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nasrin Rastegarvand
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ala Habibian
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hoorieh Soleimanjahi
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Marek J Łos
- Biotechnology Center, Silesian University of Technology, 8 Krzywousty St., 44-100, Gliwice, Poland; LinkoCare Life Sciences AB, Linkoping, Sweden.
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19
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Chen C, Jung A, Yang A, Monroy I, Zhang Z, Chaurasiya S, Deshpande S, Priceman S, Fong Y, Park AK, Woo Y. Chimeric Antigen Receptor-T Cell and Oncolytic Viral Therapies for Gastric Cancer and Peritoneal Carcinomatosis of Gastric Origin: Path to Improving Combination Strategies. Cancers (Basel) 2023; 15:5661. [PMID: 38067366 PMCID: PMC10705752 DOI: 10.3390/cancers15235661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 02/12/2024] Open
Abstract
Precision immune oncology capitalizes on identifying and targeting tumor-specific antigens to enhance anti-tumor immunity and improve the treatment outcomes of solid tumors. Gastric cancer (GC) is a molecularly heterogeneous disease where monoclonal antibodies against human epidermal growth factor receptor 2 (HER2), vascular endothelial growth factor (VEGF), and programmed cell death 1 (PD-1) combined with systemic chemotherapy have improved survival in patients with unresectable or metastatic GC. However, intratumoral molecular heterogeneity, variable molecular target expression, and loss of target expression have limited antibody use and the durability of response. Often immunogenically "cold" and diffusely spread throughout the peritoneum, GC peritoneal carcinomatosis (PC) is a particularly challenging, treatment-refractory entity for current systemic strategies. More adaptable immunotherapeutic approaches, such as oncolytic viruses (OVs) and chimeric antigen receptor (CAR) T cells, have emerged as promising GC and GCPC treatments that circumvent these challenges. In this study, we provide an up-to-date review of the pre-clinical and clinical efficacy of CAR T cell therapy for key primary antigen targets and provide a translational overview of the types, modifications, and mechanisms for OVs used against GC and GCPC. Finally, we present a novel, summary-based discussion on the potential synergistic interplay between OVs and CAR T cells to treat GCPC.
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Affiliation(s)
- Courtney Chen
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Audrey Jung
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Annie Yang
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Isabel Monroy
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA; (I.M.); (S.P.)
| | - Zhifang Zhang
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Shyambabu Chaurasiya
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Supriya Deshpande
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Saul Priceman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA; (I.M.); (S.P.)
- Cancer Immunotherapeutics Program, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Yuman Fong
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
| | - Anthony K. Park
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA; (I.M.); (S.P.)
- Cancer Immunotherapeutics Program, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Yanghee Woo
- Department of Surgery, City of Hope, Duarte, CA 91010, USA; (C.C.); (A.J.); (A.Y.); (Z.Z.); (S.C.); (S.D.); (Y.F.)
- Cancer Immunotherapeutics Program, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
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20
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Lin QF, Wong CXL, Eaton HE, Pang X, Shmulevitz M. Reovirus genomic diversity confers plasticity for protease utility during adaptation to intracellular uncoating. J Virol 2023; 97:e0082823. [PMID: 37747236 PMCID: PMC10617468 DOI: 10.1128/jvi.00828-23] [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: 06/01/2023] [Accepted: 07/27/2023] [Indexed: 09/26/2023] Open
Abstract
IMPORTANCE Reoviruses infect many mammals and are widely studied as a model system for enteric viruses. However, most of our reovirus knowledge comes from laboratory strains maintained on immortalized L929 cells. Herein, we asked whether naturally circulating reoviruses possess the same genetic and phenotypic characteristics as laboratory strains. Naturally circulating reoviruses obtained from sewage were extremely diverse genetically. Moreover, sewage reoviruses exhibited poor fitness on L929 cells and relied heavily on gut proteases for viral uncoating and productive infection compared to laboratory strains. We then examined how naturally circulating reoviruses might adapt to cell culture conditions. Within three passages, virus isolates from the parental sewage population were selected, displaying improved fitness and intracellular uncoating in L929 cells. Remarkably, selected progeny clones were present at 0.01% of the parental population. Altogether, using reovirus as a model, our study demonstrates how the high genetic diversity of naturally circulating viruses results in rapid adaptation to new environments.
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Affiliation(s)
- Qi Feng Lin
- Department of Medical Microbiology and Immunology, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
| | - Casey X. L. Wong
- Department of Medical Microbiology and Immunology, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
| | - Heather E. Eaton
- Department of Medical Microbiology and Immunology, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
| | - Xiaoli Pang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
- Public Health Laboratories (ProvLab), Alberta Precision Laboratories (APL), Edmonton, Alberta, Canada
| | - Maya Shmulevitz
- Department of Medical Microbiology and Immunology, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
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21
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de Amorim DB, Ribeiro PR, Bandinelli MB, Echenique JVZ, Bianchi MV, Almeida PR, Spilki FR, Baumbach LF, Sonne L. B-cell small lymphocytic lymphoma in a free-ranging South American fur seal (Arctocephalus australis). DISEASES OF AQUATIC ORGANISMS 2023; 156:1-6. [PMID: 37823559 DOI: 10.3354/dao03757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Lymphomas are malignant neoplasms of the hematopoietic system arising from lymphocytes with highly variable biologic behavior. B-cell small lymphocytic lymphoma (B-SLL) is a non-Hodgkin lymphoma infrequently described in domestic and wild animals. The present study describes a case of B-SLL in a free-ranging adult male Arctocephalus australis in Brazil. The main necropsy findings included poor body condition, generalized lymphadenomegaly, severe and diffuse splenomegaly, and multiple, white to yellow nodules in the kidneys and small intestine. Histologically, these organs were partially or totally effaced by neoplastic small lymphocytes arranged in sheets, with moderate anisocytosis and anisokaryosis and a low mitotic count. These cells diffusely immunolabeled for CD79α and CD20, and were negative for CD3. A diagnosis of multicentric B-SLL was established and to the authors' knowledge, it has not been previously described in this genus.
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Affiliation(s)
- Derek B de Amorim
- Programa de Pós-graduação em Ciências Veterinárias (PPGCV) Faculdade de Veterinária, (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91540-000, Brazil
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22
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Karandikar PV, Suh L, Gerstl JVE, Blitz SE, Qu QR, Won SY, Gessler FA, Arnaout O, Smith TR, Peruzzi PP, Yang W, Friedman GK, Bernstock JD. Positioning SUMO as an immunological facilitator of oncolytic viruses for high-grade glioma. Front Cell Dev Biol 2023; 11:1271575. [PMID: 37860820 PMCID: PMC10582965 DOI: 10.3389/fcell.2023.1271575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/18/2023] [Indexed: 10/21/2023] Open
Abstract
Oncolytic viral (OV) therapies are promising novel treatment modalities for cancers refractory to conventional treatment, such as glioblastoma, within the central nervous system (CNS). Although OVs have received regulatory approval for use in the CNS, efficacy is hampered by obstacles related to delivery, under-/over-active immune responses, and the "immune-cold" nature of most CNS malignancies. SUMO, the Small Ubiquitin-like Modifier, is a family of proteins that serve as a high-level regulator of a large variety of key physiologic processes including the host immune response. The SUMO pathway has also been implicated in the pathogenesis of both wild-type viruses and CNS malignancies. As such, the intersection of OV biology with the SUMO pathway makes SUMOtherapeutics particularly interesting as adjuvant therapies for the enhancement of OV efficacy alone and in concert with other immunotherapeutic agents. Accordingly, the authors herein provide: 1) an overview of the SUMO pathway and its role in CNS malignancies; 2) describe the current state of CNS-targeted OVs; and 3) describe the interplay between the SUMO pathway and the viral lifecycle and host immune response.
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Affiliation(s)
- Paramesh V. Karandikar
- T. H. Chan School of Medicine, University of Massachusetts, Worcester, MA, United States
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Lyle Suh
- T. H. Chan School of Medicine, University of Massachusetts, Worcester, MA, United States
| | - Jakob V. E. Gerstl
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Sarah E. Blitz
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Qing Rui Qu
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Sae-Yeon Won
- Department of Neurosurgery, University of Rostock, Rostock, Germany
| | | | - Omar Arnaout
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Timothy R. Smith
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Pier Paolo Peruzzi
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Wei Yang
- Department of Anesthesiology, Multidisciplinary Brain Protection Program, Duke University Medical Center, Durham, NC, United States
| | - Gregory K. Friedman
- Department of Neuro-Oncology, Division of Cancer Medicine, MD Anderson Cancer Center, Houston, TX, United States
| | - Joshua D. Bernstock
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, United States
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23
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Onnockx S, Baldo A, Pauwels K. Oncolytic Viruses: An Inventory of Shedding Data from Clinical Trials and Elements for the Environmental Risk Assessment. Vaccines (Basel) 2023; 11:1448. [PMID: 37766125 PMCID: PMC10535390 DOI: 10.3390/vaccines11091448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/18/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Attenuated and/or genetically modified oncolytic viruses (OV) gain increasing interest as a promising approach for cancer therapy. Beside the assessment of subject safety, quality and efficacy aspects of medicinal products for human use, genetically modified viruses are also governed by EU regulatory frameworks requiring an environmental risk assessment (ERA). An important element to be assessed as part of the ERA is the incidence of exposure to OV of individuals, other than the trial subjects, and the environment. The evidence-based evaluation of shedding data is considered to be decisive in that context, as it may impact the OV capacity to be transmitted. This is particularly true for OV still able to (conditionally) replicate as opposed to replication-defective viral vectors commonly used in gene therapy or vaccination. To our knowledge, this article presents the most extensive and up-to-date review of shedding data reported with OV employed in clinics. Besides the identification of a topical need for improving the collection of shedding data, this article aims at providing an aid to the design of an appropriate shedding study, thereby relying on and further complementing principles described in existing guidelines issued by European and international institutions.
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Affiliation(s)
- Sheela Onnockx
- Sciensano, Service Biosafety and Biotechnology, Rue Juliette Wytsmanstraat 14, B-1050 Brussels, Belgium; (A.B.); (K.P.)
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24
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Zhao B, Hu L, Kuandal S, Neetu N, Lee C, Somoulay X, Sankaran B, Taylor GM, Dermody TS, Prasad BVV. Structure of Orthoreovirus RNA Chaperone σNS, a Component of Viral Replication Factories. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.31.551319. [PMID: 37577609 PMCID: PMC10418060 DOI: 10.1101/2023.07.31.551319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
The reovirus σNS RNA-binding protein is required for formation of intracellular compartments during viral infection that support viral genome replication and capsid assembly. Despite its functional importance, a mechanistic understanding of σNS is lacking. We conducted structural and biochemical analyses of an R6A mutant of σNS that forms dimers instead of the higher-order oligomers formed by wildtype (WT) σNS. The crystal structure of selenomethionine-substituted σNS-R6A reveals that the mutant protein forms a stable antiparallel dimer, with each subunit having a well-folded central core and a projecting N-terminal arm. The dimers interact with each other by inserting the N-terminal arms into a hydrophobic pocket of the neighboring dimers on either side to form a helical assembly that resembles filaments of WT σNS in complex with RNA observed using cryo-EM. The interior of the crystallographic helical assembly is positively charged and of appropriate diameter to bind RNA. The helical assembly is disrupted by bile acids, which bind to the same hydrophobic pocket as the N-terminal arm, as demonstrated in the crystal structure of σNS-R6A in complex with bile acid, suggesting that the N-terminal arm functions in conferring context-dependent oligomeric states of σNS. This idea is supported by the structure of σNS lacking the N-terminal arm. We discovered that σNS displays RNA helix destabilizing and annealing activities, likely essential for presenting mRNA to the viral RNA-dependent RNA polymerase for genome replication. The RNA chaperone activity is reduced by bile acids and abolished by N-terminal arm deletion, suggesting that the activity requires formation of σNS oligomers. Our studies provide structural and mechanistic insights into the function of σNS in reovirus replication.
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25
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Muthukutty P, Yoo SY. Oncolytic Virus Engineering and Utilizations: Cancer Immunotherapy Perspective. Viruses 2023; 15:1645. [PMID: 37631987 PMCID: PMC10459766 DOI: 10.3390/v15081645] [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: 07/03/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Oncolytic viruses have positively impacted cancer immunotherapy over the past 20 years. Both natural and genetically modified viruses have shown promising results in treating various cancers. Various regulatory authorities worldwide have approved four commercial oncolytic viruses, and more are being developed to overcome this limitation and obtain better anti-tumor responses in clinical trials at various stages. Faster advancements in translating research into the commercialization of cancer immunotherapy and a comprehensive understanding of the modification strategies will widen the current knowledge of future technologies related to the development of oncolytic viruses. In this review, we discuss the strategies of virus engineering and the progress of clinical trials to achieve virotherapeutics.
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Affiliation(s)
| | - So Young Yoo
- BIO-IT Foundry Technology Institute, Pusan National University, Busan 46241, Republic of Korea
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26
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Gross EG, Hamo MA, Estevez-Ordonez D, Laskay NMB, Atchley TJ, Johnston JM, Markert JM. Oncolytic virotherapies for pediatric tumors. Expert Opin Biol Ther 2023; 23:987-1003. [PMID: 37749907 PMCID: PMC11309584 DOI: 10.1080/14712598.2023.2245326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/03/2023] [Indexed: 09/27/2023]
Abstract
INTRODUCTION Many pediatric patients with malignant tumors continue to suffer poor outcomes. The current standard of care includes maximum safe surgical resection followed by chemotherapy and radiation which may be associated with considerable long-term morbidity. The emergence of oncolytic virotherapy (OVT) may provide an alternative or adjuvant treatment for pediatric oncology patients. AREAS COVERED We reviewed seven virus types that have been investigated in past or ongoing pediatric tumor clinical trials: adenovirus (AdV-tk, Celyvir, DNX-2401, VCN-01, Ad-TD-nsIL-12), herpes simplex virus (G207, HSV-1716), vaccinia (JX-594), reovirus (pelareorep), poliovirus (PVSRIPO), measles virus (MV-NIS), and Senecavirus A (SVV-001). For each virus, we discuss the mechanism of tumor-specific replication and cytotoxicity as well as key findings of preclinical and clinical studies. EXPERT OPINION Substantial progress has been made in the past 10 years regarding the clinical use of OVT. From our review, OVT has favorable safety profiles compared to chemotherapy and radiation treatment. However, the antitumor effects of OVT remain variable depending on tumor type and viral agent used. Although the widespread adoption of OVT faces many challenges, we are optimistic that OVT will play an important role alongside standard chemotherapy and radiotherapy for the treatment of malignant pediatric solid tumors in the future.
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Affiliation(s)
- Evan G Gross
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mohammad A Hamo
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Nicholas MB Laskay
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Travis J Atchley
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - James M Johnston
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
- Division of Pediatric Neurosurgery, Children’s of Alabama, Birmingham, AL, USA
| | - James M Markert
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
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27
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Shang P, Simpson JD, Taylor GM, Sutherland DM, Welsh OL, Aravamudhan P, Natividade RDS, Schwab K, Michel JJ, Poholek AC, Wu Y, Rajasundaram D, Koehler M, Alsteens D, Dermody TS. Paired immunoglobulin-like receptor B is an entry receptor for mammalian orthoreovirus. Nat Commun 2023; 14:2615. [PMID: 37147336 PMCID: PMC10163058 DOI: 10.1038/s41467-023-38327-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 04/25/2023] [Indexed: 05/07/2023] Open
Abstract
Mammalian orthoreovirus (reovirus) infects most mammals and is associated with celiac disease in humans. In mice, reovirus infects the intestine and disseminates systemically to cause serotype-specific patterns of disease in the brain. To identify receptors conferring reovirus serotype-dependent neuropathogenesis, we conducted a genome-wide CRISPRa screen and identified paired immunoglobulin-like receptor B (PirB) as a receptor candidate. Ectopic expression of PirB allowed reovirus binding and infection. PirB extracelluar D3D4 region is required for reovirus attachment and infectivity. Reovirus binds to PirB with nM affinity as determined by single molecule force spectroscopy. Efficient reovirus endocytosis requires PirB signaling motifs. In inoculated mice, PirB is required for maximal replication in the brain and full neuropathogenicity of neurotropic serotype 3 (T3) reovirus. In primary cortical neurons, PirB expression contributes to T3 reovirus infectivity. Thus, PirB is an entry receptor for reovirus and contributes to T3 reovirus replication and pathogenesis in the murine brain.
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Affiliation(s)
- Pengcheng Shang
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Joshua D Simpson
- Louvain Institute of Biomolecular Science and Technology, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Gwen M Taylor
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Danica M Sutherland
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Olivia L Welsh
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Pavithra Aravamudhan
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Rita Dos Santos Natividade
- Louvain Institute of Biomolecular Science and Technology, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Kristina Schwab
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Joshua J Michel
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Amanda C Poholek
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Yijen Wu
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Dhivyaa Rajasundaram
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Melanie Koehler
- Leibniz Institute for Food Systems Biology at the Technical University Munich, Freising, Germany
| | - David Alsteens
- Louvain Institute of Biomolecular Science and Technology, Université catholique de Louvain, Louvain-la-Neuve, Belgium
- WELBIO Department, WEL Research Institute, Wavre, Belgium
| | - Terence S Dermody
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Institute of Infection, Inflammation, and Immunity, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA.
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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28
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Lin D, Shen Y, Liang T. Oncolytic virotherapy: basic principles, recent advances and future directions. Signal Transduct Target Ther 2023; 8:156. [PMID: 37041165 PMCID: PMC10090134 DOI: 10.1038/s41392-023-01407-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/05/2023] [Accepted: 03/14/2023] [Indexed: 04/13/2023] Open
Abstract
Oncolytic viruses (OVs) have attracted growing awareness in the twenty-first century, as they are generally considered to have direct oncolysis and cancer immune effects. With the progress in genetic engineering technology, OVs have been adopted as versatile platforms for developing novel antitumor strategies, used alone or in combination with other therapies. Recent studies have yielded eye-catching results that delineate the promising clinical outcomes that OVs would bring about in the future. In this review, we summarized the basic principles of OVs in terms of their classifications, as well as the recent advances in OV-modification strategies based on their characteristics, biofunctions, and cancer hallmarks. Candidate OVs are expected to be designed as "qualified soldiers" first by improving target fidelity and safety, and then equipped with "cold weapons" for a proper cytocidal effect, "hot weapons" capable of activating cancer immunotherapy, or "auxiliary weapons" by harnessing tactics such as anti-angiogenesis, reversed metabolic reprogramming and decomposing extracellular matrix around tumors. Combinations with other cancer therapeutic agents have also been elaborated to show encouraging antitumor effects. Robust results from clinical trials using OV as a treatment congruously suggested its significance in future application directions and challenges in developing OVs as novel weapons for tactical decisions in cancer treatment.
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Affiliation(s)
- Danni Lin
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, Zhejiang, China
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yinan Shen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, Zhejiang, China
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases, Hangzhou, Zhejiang, China.
- The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Hangzhou, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, Zhejiang, China.
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29
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Siew ZY, Loh A, Segeran S, Leong PP, Voon K. Oncolytic Reoviruses: Can These Emerging Zoonotic Reoviruses Be Tamed and Utilized? DNA Cell Biol 2023. [PMID: 37015068 DOI: 10.1089/dna.2022.0561] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023] Open
Abstract
Orthoreovirus is a nonenveloped double-stranded RNA virus under the Reoviridae family. This group of viruses, especially mammalian orthoreovirus (MRV), are reported with great therapeutic values due to their oncolytic effects. In this review, the life cycle and oncolytic effect of MRV and a few emerging reoviruses were summarized. This article also highlights the challenges and strategies of utilizing MRV and the emerging reoviruses, avian orthoreovirus (ARV) and pteropine orthoreovirus (PRV), as oncolytic viruses (OVs). Besides, the emergence of potential ARV and PRV as OVs were discussed in comparison to MRV. Finally, the risk of reovirus as zoonosis or reverse zoonosis (zooanthroponosis) were debated, and concerns were raised in this article, which warrant continue surveillance of reovirus (MRV, ARV, and PRV) in animals, humans, and the environment.
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Affiliation(s)
- Zhen Yun Siew
- School of Pharmacy, University of Nottingham Malaysia, Semenyih, Malaysia
| | - Alson Loh
- School of Postgraduate Studies, International Medical University, Kuala Lumpur, Malaysia
| | - Sharrada Segeran
- School of Medicine, Australian National University, Canberra, Australia
| | - Pooi Pooi Leong
- Faculty of Medicine and Health Sciences, Universiti of Tunku Abdul Rahman, Kajang, Malaysia
| | - Kenny Voon
- School of Pharmacy, University of Nottingham Malaysia, Semenyih, Malaysia
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p38 Mitogen-Activated Protein Kinase Signaling Enhances Reovirus Replication by Facilitating Efficient Virus Entry, Capsid Uncoating, and Postuncoating Steps. J Virol 2023; 97:e0000923. [PMID: 36744961 PMCID: PMC9972948 DOI: 10.1128/jvi.00009-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Mammalian orthoreovirus serotype 3 Dearing is an oncolytic virus currently undergoing multiple clinical trials as a potential cancer therapy. Previous clinical trials have emphasized the importance of prescreening patients for prognostic markers to improve therapeutic success. However, only generic cancer markers such as epidermal growth factor receptor (EGFR), Hras, Kras, Nras, Braf, and p53 are currently utilized, with limited benefit in predicting therapeutic efficacy. This study aimed to investigate the role of p38 mitogen-activated protein kinase (MAPK) signaling during reovirus infection. Using a panel of specific p38 MAPK inhibitors and an inactive inhibitor analogue, p38 MAPK signaling was found to be essential for establishment of reovirus infection by enhancing reovirus endocytosis, facilitating efficient reovirus uncoating at the endo-lysosomal stage, and augmenting postuncoating replication steps. Using a broad panel of human breast cancer cell lines, susceptibility to reovirus infection corresponded with virus binding and uncoating efficiency, which strongly correlated with status of the p38β isoform. Together, results suggest p38β isoform as a potential prognostic marker for early stages of reovirus infection that are crucial to successful reovirus infection. IMPORTANCE The use of Pelareorep (mammalian orthoreovirus) as a therapy for metastatic breast cancer has shown promising results in recent clinical trials. However, the selection of prognostic markers to stratify patients has had limited success due to the fact that these markers are upstream receptors and signaling pathways that are present in a high percentage of cancers. This study demonstrates that the mechanism of action of p38 MAPK signaling plays a key role in establishment of reovirus infection at both early entry and late replication steps. Using a panel of breast cancer cell lines, we found that the expression levels of the MAPK11 (p38β) isoform are a strong determinant of reovirus uncoating and infection establishment. Our findings suggest that selecting prognostic markers that target key steps in reovirus replication may improve patient stratification during oncolytic reovirus therapy.
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Groeneveldt C, van Ginkel JQ, Kinderman P, Sluijter M, Griffioen L, Labrie C, van den Wollenberg DJ, Hoeben RC, van der Burg SH, ten Dijke P, Hawinkels LJ, van Hall T, van Montfoort N. Intertumoral Differences Dictate the Outcome of TGF-β Blockade on the Efficacy of Viro-Immunotherapy. CANCER RESEARCH COMMUNICATIONS 2023; 3:325-337. [PMID: 36860656 PMCID: PMC9973387 DOI: 10.1158/2767-9764.crc-23-0019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023]
Abstract
The absence of T cells in the tumor microenvironment of solid tumors is a major barrier to cancer immunotherapy efficacy. Oncolytic viruses, including reovirus type 3 Dearing (Reo), can recruit CD8+ T cells to the tumor and thereby enhance the efficacy of immunotherapeutic strategies that depend on high T-cell density, such as CD3-bispecific antibody (bsAb) therapy. TGF-β signaling might represent another barrier to effective Reo&CD3-bsAb therapy due to its immunoinhibitory characteristics. Here, we investigated the effect of TGF-β blockade on the antitumor efficacy of Reo&CD3-bsAb therapy in the preclinical pancreatic KPC3 and colon MC38 tumor models, where TGF-β signaling is active. TGF-β blockade impaired tumor growth in both KPC3 and MC38 tumors. Furthermore, TGF-β blockade did not affect reovirus replication in both models and significantly enhanced the Reo-induced T-cell influx in MC38 colon tumors. Reo administration decreased TGF-β signaling in MC38 tumors but instead increased TGF-β activity in KPC3 tumors, resulting in the accumulation of α-smooth muscle actin (αSMA+) fibroblasts. In KPC3 tumors, TGF-β blockade antagonized the antitumor effect of Reo&CD3-bsAb therapy, even though T-cell influx and activity were not impaired. Moreover, genetic loss of TGF-β signaling in CD8+ T cells had no effect on therapeutic responses. In contrast, TGF-β blockade significantly improved therapeutic efficacy of Reo&CD3-bsAb in mice bearing MC38 colon tumors, resulting in a 100% complete response. Further understanding of the factors that determine this intertumor dichotomy is required before TGF-β inhibition can be exploited as part of viroimmunotherapeutic combination strategies to improve their clinical benefit. Significance Blockade of the pleiotropic molecule TGF-β can both improve and impair the efficacy of viro-immunotherapy, depending on the tumor model. While TGF-β blockade antagonized Reo&CD3-bsAb combination therapy in the KPC3 model for pancreatic cancer, it resulted in 100% complete responses in the MC38 colon model. Understanding factors underlying this contrast is required to guide therapeutic application.
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Affiliation(s)
- Christianne Groeneveldt
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Jurriaan Q. van Ginkel
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Priscilla Kinderman
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Marjolein Sluijter
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Lisa Griffioen
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Camilla Labrie
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Rob C. Hoeben
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Sjoerd H. van der Burg
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Peter ten Dijke
- Department of Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Lukas J.A.C. Hawinkels
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Thorbald van Hall
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, the Netherlands
| | - Nadine van Montfoort
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands.,Corresponding Author: Nadine van Montfoort, Leiden University Medical Center, Albinusdreef 2, Leiden 2333 ZA, the Netherlands. Phone: 317-1526-4726; E-mail:
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Holay N, Kennedy BE, Murphy JP, Konda P, Giacomantonio M, Brauer-Chapin T, Paulo JA, Kumar V, Kim Y, Elaghil M, Sisson G, Clements D, Richardson C, Gygi SP, Gujar S. After virus exposure, early bystander naïve CD8 T cell activation relies on NAD + salvage metabolism. Front Immunol 2023; 13:1047661. [PMID: 36818473 PMCID: PMC9932030 DOI: 10.3389/fimmu.2022.1047661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 12/20/2022] [Indexed: 02/04/2023] Open
Abstract
CD8 T cells play a central role in antiviral immunity. Type I interferons are among the earliest responders after virus exposure and can cause extensive reprogramming and antigen-independent bystander activation of CD8 T cells. Although bystander activation of pre-existing memory CD8 T cells is known to play an important role in host defense and immunopathology, its impact on naïve CD8 T cells remains underappreciated. Here we report that exposure to reovirus, both in vitro or in vivo, promotes bystander activation of naïve CD8 T cells within 24 hours and that this distinct subtype of CD8 T cell displays an innate, antiviral, type I interferon sensitized signature. The induction of bystander naïve CD8 T cells is STAT1 dependent and regulated through nicotinamide phosphoribosyl transferase (NAMPT)-mediated enzymatic actions within NAD+ salvage metabolic biosynthesis. These findings identify a novel aspect of CD8 T cell activation following virus infection with implications for human health and physiology.
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Affiliation(s)
- Namit Holay
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
| | - Barry E. Kennedy
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- IMV Inc, Halifax, NS, Canada
| | - J. Patrick Murphy
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- Department of Biology, University of Prince Edward Island, Charlottetown, PEI, Canada
| | - Prathyusha Konda
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | | | - Tatjana Brauer-Chapin
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, MA, United States
| | - Joao A. Paulo
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, MA, United States
| | | | - Youra Kim
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
| | - Mariam Elaghil
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- IMV Inc, Halifax, NS, Canada
| | - Gary Sisson
- Department of Biology, University of Prince Edward Island, Charlottetown, PEI, Canada
| | - Derek Clements
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, United States
| | - Christopher Richardson
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
- Canadian Centre for Vaccinology, IWK Health Centre, Goldbloom Pavilion, Halifax, NS, Canada
- Department of Pediatrics, Dalhousie University, Halifax, NS, Canada
| | - Steven P. Gygi
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, MA, United States
| | - Shashi Gujar
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
- Department of Biology, Dalhousie University, Halifax, NS, Canada
- Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
- Cancer Immunotherapy: Innovation & Global Partnerships, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
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Groeneveldt C, van den Ende J, van Montfoort N. Preexisting immunity: Barrier or bridge to effective oncolytic virus therapy? Cytokine Growth Factor Rev 2023; 70:1-12. [PMID: 36732155 DOI: 10.1016/j.cytogfr.2023.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/01/2023]
Abstract
Oncolytic viruses (OVs) represent a highly promising treatment strategy for a wide range of cancers, by mediating both the direct killing of tumor cells as well as mobilization of antitumor immune responses. As many OVs circulate in the human population, preexisting OV-specific immune responses are prevalent. Indeed, neutralizing antibodies (NAbs) are abundantly present in the human population for commonly used OVs, such as Adenovirus type 5 (Ad5), Herpes Simplex Virus-1 (HSV-1), Vaccinia virus, Measles virus, and Reovirus. This review discusses (pre)clinical evidence regarding the effect of preexisting immunity against OVs on two distinct aspects of OV therapy; OV infection and spread, as well as the immune response induced upon OV therapy. Combined, this review provides evidence that consideration of preexisting immunity is crucial in realizing the full potential of the highly promising therapeutic implementation of OVs. Future investigation of current gaps in knowledge highlighted in this review should yield a more complete understanding of this topic, ultimately allowing for better and more personalized OV therapies.
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Affiliation(s)
- Christianne Groeneveldt
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands.
| | - Jasper van den Ende
- Master Infection & Immunity, Utrecht University, 3584 CS Utrecht, the Netherlands
| | - Nadine van Montfoort
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, 2333 ZA, Leiden, the Netherlands
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van den Wollenberg DJM, Kemp V, Rabelink MJWE, Hoeben RC. Reovirus Type 3 Dearing Variants Do Not Induce Necroptosis in RIPK3-Expressing Human Tumor Cell Lines. Int J Mol Sci 2023; 24:ijms24032320. [PMID: 36768641 PMCID: PMC9916669 DOI: 10.3390/ijms24032320] [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: 11/27/2022] [Revised: 01/12/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
Reoviruses are used as oncolytic viruses to destroy tumor cells. The concomitant induction of anti-tumor immune responses enhances the efficacy of therapy in tumors with low amounts of immune infiltrates before treatment. The reoviruses should provoke immunogenic cell death (ICD) to stimulate a tumor cell-directed immune response. Necroptosis is considered a major form of ICD, and involves receptor-interacting protein kinase 1 (RIPK1), RIPK3 and phosphorylation of mixed-lineage kinase domain-like protein (MLKL). This leads to cell membrane disintegration and the release of damage-associated molecular patterns that can activate immune responses. Reovirus Type 3 Dearing (T3D) can induce necroptosis in mouse L929 fibroblast cells and mouse embryonic fibroblasts. Most human tumor cell lines have a defect in RIPK3 expression and consequently fail to induce necroptosis as measured by MLKL phosphorylation. We used the human colorectal adenocarcinoma HT29 cell line as a model to study necroptosis in human cells since this cell line has frequently been described in necroptosis-related studies. To stimulate MLKL phosphorylation and induce necroptosis, HT29 cells were treated with a cocktail consisting of TNFα, the SMAC mimetic BV6, and the caspase inhibitor Z-VAD-FMK. While this treatment induced necroptosis, three different reovirus T3D variants, i.e., the plasmid-based reverse genetics generated virus (T3DK), the wild-type reovirus T3D isolate R124, and the junction adhesion molecule-A-independent reovirus mutant (jin-1) failed to induce necroptosis in HT29 cells. In contrast, these viruses induced MLKL phosphorylation in murine L929 cells, albeit with varying efficiencies. Our study shows that while reoviruses efficiently induce necroptosis in L929 cells, this is not a common phenotype in human cell lines. This study emphasizes the difficulties of translating the results of ICD studies from murine cells to human cells.
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Basu R, Moles CM. Rational selection of an ideal oncolytic virus to address current limitations in clinical translation. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2023. [PMID: 37541726 DOI: 10.1016/bs.ircmb.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Oncolytic virus therapy (OVT) is a promising modality that leverages the propensity of natural or engineered viruses to selectively replicate in and kill cancer cells. Over the past decade, (pre)clinical studies have focused on the development and testing of adenovirus, herpes simplex virus, and vaccinia virus-based vectors. These studies have identified barriers to success confronting the field. Here, we propose a set of selection criteria or ideal properties of a successful oncolytic virus, which include lack of pathogenicity, low seroprevalence, selectivity (infection and replication), transgene carrying capacity, and genome stability. We use these requirements to analyze the oncolytic virus landscape, and then identify a potentially optimal species for platform development - vesicular stomatitis virus.
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36
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In situ structures of polymerase complex of mammalian reovirus illuminate RdRp activation and transcription regulation. Proc Natl Acad Sci U S A 2022; 119:e2203054119. [PMID: 36469786 PMCID: PMC9897473 DOI: 10.1073/pnas.2203054119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Mammalian reovirus (reovirus) is a multilayered, turreted member of Reoviridae characterized by transcription of dsRNA genome within the innermost capsid shell. Here, we present high-resolution in situ structures of reovirus transcriptase complex in an intact double-layered virion, and in the uncoated single-layered core particles in the unloaded, reloaded, pre-elongation, and elongation states, respectively, obtained by cryo-electron microscopy and sub-particle reconstructions. At the template entry of RNA-dependent RNA polymerase (RdRp), the RNA-loading region gets flexible after uncoating resulting in the unloading of terminal genomic RNA and inactivity of transcription. However, upon adding transcriptional substrates, the RNA-loading region is recovered leading the RNAs loaded again. The priming loop in RdRp was found to play a critical role in regulating transcription, which hinders the elongation of transcript in virion and triggers the rearrangement of RdRp C-terminal domain (CTD) during elongation, resulting in splitting of template-transcript hybrid and opening of transcript exit. With the integration of these structures, a transcriptional model of reovirus with five states is proposed. Our structures illuminate the RdRp activation and regulation of the multilayered turreted reovirus.
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Hu H, Xia Q, Hu J, Wang S. Oncolytic Viruses for the Treatment of Bladder Cancer: Advances, Challenges, and Prospects. J Clin Med 2022; 11:jcm11236997. [PMID: 36498574 PMCID: PMC9738443 DOI: 10.3390/jcm11236997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/16/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Bladder cancer is one of the most prevalent cancers. Despite recent advancements in bladder cancer therapy, new strategies are still required for improving patient outcomes, particularly for those who experienced Bacille Calmette-Guerin failure and those with locally advanced or metastatic bladder cancer. Oncolytic viruses are either naturally occurring or purposefully engineered viruses that have the ability to selectively infect and lyse tumor cells while avoiding harming healthy cells. In light of this, oncolytic viruses serve as a novel and promising immunotherapeutic strategy for bladder cancer. A wide diversity of viruses, including adenoviruses, herpes simplex virus, coxsackievirus, Newcastle disease virus, vesicular stomatitis virus, alphavirus, and vaccinia virus, have been studied in many preclinical and clinical studies for their potential as oncolytic agents for bladder cancer. This review aims to provide an overview of the advances in oncolytic viruses for the treatment of bladder cancer and highlights the challenges and research directions for the future.
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Affiliation(s)
| | | | - Jia Hu
- Correspondence: (J.H.); (S.W.)
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38
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Current landscape and perspective of oncolytic viruses and their combination therapies. Transl Oncol 2022; 25:101530. [PMID: 36095879 PMCID: PMC9472052 DOI: 10.1016/j.tranon.2022.101530] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 08/29/2022] [Accepted: 09/02/2022] [Indexed: 11/24/2022] Open
Abstract
Oncolytic virotherapy has become an important branch of cancer immunotherapy in clinical practice. Multiple viruses can be engineered to be OVs and armed with anticancer genes to enhance their efficacy. OVs can reshape TME and produce synergistic anticancer efficacy when combined with other therapies. Safety and effectiveness are the main direction of future research and development of OVs.
Oncolytic virotherapy has become an important strategy in cancer immunotherapy. Oncolytic virus (OV) can reshape the tumor microenvironment (TME) through its replication-mediated oncolysis and transgene-produced anticancer effect, inducing an antitumor immune response and creating favorable conditions for the combination of other therapeutic measures. Extensive preclinical and clinical data have suggested that OV-based combination therapy has definite efficacy and promising prospects. Recently, several clinical trials of oncolytic virotherapy combined with immunotherapy have made breakthroughs. This review comprehensively elaborates the OV types and their targeting mechanisms, the selection of anticancer genes armed in OVs, and the therapeutic modes of action and strategies of OVs to provide a theoretical basis for the better design and construction of OVs and the optimization of OV-based therapeutic strategies.
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Augustine T, John P, Friedman T, Jiffry J, Guzik H, Mannan R, Gupta R, Delano C, Mariadason JM, Zang X, Maitra R, Goel S. Potentiating effect of reovirus on immune checkpoint inhibition in microsatellite stable colorectal cancer. Front Oncol 2022; 12:1018767. [PMID: 36387154 PMCID: PMC9642964 DOI: 10.3389/fonc.2022.1018767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/28/2022] [Indexed: 09/27/2023] Open
Abstract
The majority of colorectal cancers (CRCs) are microsatellite stable (MSS) and resistant to immunotherapy. The current study explores the possibility of using oncolytic reovirus to sensitize MSS CRC to immune checkpoint inhibition. While reovirus reduced metabolic activity among KRAS Mut cells, microarray/computational analysis revealed microsatellite status-oriented activation of immune-response pathways. Reovirus plus anti-PD-1 treatment increased cell death among MSS cells ex vivo. Reduced tumorigenicity and proliferative index, and increased apoptosis were evident among CT26 [MSS, KRAS Mut], but not in MC38 [microsatellite unstable/MSI, KRAS Wt] syngeneic mouse models under combinatorial treatment. PD-L1-PD-1 signaling axis were differentially altered among CT26/MC38 models. Combinatorial treatment activated the innate immune system, pattern recognition receptors, and antigen presentation markers. Furthermore, we observed the reduction of immunosuppressive macrophages and expansion of effector T cell subsets, as well as reduction in T cell exhaustion. The current investigation sheds light on the immunological mechanisms of the reovirus-anti-PD-1 combination to reduce the growth of MSS CRC.
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Affiliation(s)
- Titto Augustine
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Peter John
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Tyler Friedman
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Neuroscience, Florida State University, Tallahassee, FL, United States
| | - Jeeshan Jiffry
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Hillary Guzik
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Rifat Mannan
- Department of Pathology, City of Hope, Duarte, CA, United States
| | - Riya Gupta
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Computer Science, Columbia University, New York, NY, United States
| | - Catherine Delano
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
| | - John M. Mariadason
- Gastrointestinal Cancers Program and Oncogenic Transcription Laboratory, Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Melbourne, VIC, Australia
| | - Xingxing Zang
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Urology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Radhashree Maitra
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Medical Oncology, Montefiore Medical Center, Bronx, NY, United States
- Department of Biology, Yeshiva University, New York, NY, United States
| | - Sanjay Goel
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
- Department of Medical Oncology, Montefiore Medical Center, Bronx, NY, United States
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Wang H, Shi F, Zheng S, Zhao M, Pan Z, Xiong L, Zheng L. Feasibility of hepatocellular carcinoma treatment based on the tumor microenvironment. Front Oncol 2022; 12:896662. [PMID: 36176401 PMCID: PMC9513472 DOI: 10.3389/fonc.2022.896662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
The incidence of liver cancer is extremely high worldwide and poses a serious threat to human life and health. But at present, apart from radiotherapy, chemotherapy, liver transplantation, and early resection, sorafenib was the main systemic therapy proven to have clinical efficacy for unresectable liver cancer (HCC) until 2017. Despite the emerging immunotherapy in the past decade with immune inhibitors such as PD - 1 being approved and applied to clinical treatment, there are still some patients with no response. This review aims to elucidate the mechanisms underlying the tumor microenvironment of hepatocellular carcinoma and thus analyze the effectiveness of targeting the tumor microenvironment to improve the therapeutic efficacy of hepatocellular carcinoma, including the effectiveness and feasibility of immunotherapy, tumor oncolytic viruses and anti-vascular proliferation therapy.
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Affiliation(s)
- Haiqiang Wang
- Department of Internal Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Fan Shi
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Shudan Zheng
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Mei Zhao
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zimeng Pan
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Li Xiong
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Lihong Zheng
- Department of Internal Medicine, Fourth Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- *Correspondence: Lihong Zheng,
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Recombinant Viral Vectors for Therapeutic Programming of Tumour Microenvironment: Advantages and Limitations. Biomedicines 2022; 10:biomedicines10092142. [PMID: 36140243 PMCID: PMC9495732 DOI: 10.3390/biomedicines10092142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Viral vectors have been widely investigated as tools for cancer immunotherapy. Although many preclinical studies demonstrate significant virus-mediated tumour inhibition in synergy with immune checkpoint molecules and other drugs, the clinical success of viral vector applications in cancer therapy currently is limited. A number of challenges have to be solved to translate promising vectors to clinics. One of the key elements of successful virus-based cancer immunotherapy is the understanding of the tumour immune state and the development of vectors to modify the immunosuppressive tumour microenvironment (TME). Tumour-associated immune cells, as the main component of TME, support tumour progression through multiple pathways inducing resistance to treatment and promoting cancer cell escape mechanisms. In this review, we consider DNA and RNA virus vectors delivering immunomodulatory genes (cytokines, chemokines, co-stimulatory molecules, antibodies, etc.) and discuss how these viruses break an immunosuppressive cell development and switch TME to an immune-responsive “hot” state. We highlight the advantages and limitations of virus vectors for targeted therapeutic programming of tumour immune cell populations and tumour stroma, and propose future steps to establish viral vectors as a standard, efficient, safe, and non-toxic cancer immunotherapy approach that can complement other promising treatment strategies, e.g., checkpoint inhibitors, CAR-T, and advanced chemotherapeutics.
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42
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Yun CO, Hong J, Yoon AR. Current clinical landscape of oncolytic viruses as novel cancer immunotherapeutic and recent preclinical advancements. Front Immunol 2022; 13:953410. [PMID: 36091031 PMCID: PMC9458317 DOI: 10.3389/fimmu.2022.953410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/03/2022] [Indexed: 12/12/2022] Open
Abstract
Oncolytic viruses (OVs) have been gaining attention in the pharmaceutical industry as a novel immunotherapeutic and therapeutic adjuvant due to their ability to induce and boost antitumor immunity through multiple mechanisms. First, intrinsic mechanisms of OVs that enable exploitation of the host immune system (e.g., evading immune detection) can nullify the immune escape mechanism of tumors. Second, many types of OVs have been shown to cause direct lysis of tumor cells, resulting in an induction of tumor-specific T cell response mediated by release of tumor-associated antigens and danger signal molecules. Third, armed OV-expressing immune stimulatory therapeutic genes could be highly expressed in tumor tissues to further improve antitumor immunity. Last, these OVs can inflame cold tumors and their microenvironment to be more immunologically favorable for other immunotherapeutics. Due to these unique characteristics, OVs have been tested as an adjuvant of choice in a variety of therapeutics. In light of these promising attributes of OVs in the immune-oncology field, the present review will examine OVs in clinical development and discuss various strategies that are being explored in preclinical stages for the next generation of OVs that are optimized for immunotherapy applications.
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Affiliation(s)
- Chae-Ok Yun
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, South Korea
- Institute of Nano Science and Technology (INST), Hanyang University, Seoul, South Korea
- Hanyang Institute of Bioscience and Biotechnology (HY-IBB), Hanyang University, Seoul, South Korea
- GeneMedicine CO., Ltd., Seoul, South Korea
| | | | - A-Rum Yoon
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, South Korea
- Institute of Nano Science and Technology (INST), Hanyang University, Seoul, South Korea
- Hanyang Institute of Bioscience and Biotechnology (HY-IBB), Hanyang University, Seoul, South Korea
- *Correspondence: A-Rum Yoon,
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Giotta Lucifero A, Luzzi S. Emerging immune-based technologies for high-grade gliomas. Expert Rev Anticancer Ther 2022; 22:957-980. [PMID: 35924820 DOI: 10.1080/14737140.2022.2110072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The selection of a tailored and successful strategy for high-grade gliomas (HGGs) treatment is still a concern. The abundance of aberrant mutations within the heterogenic genetic landscape of glioblastoma strongly influences cell expansion, proliferation, and therapeutic resistance. Identification of immune evasion pathways opens the way to novel immune-based strategies. This review intends to explore the emerging immunotherapies for HGGs. The immunosuppressive mechanisms related to the tumor microenvironment and future perspectives to overcome glioma immunity barriers are also debated. AREAS COVERED An extensive literature review was performed on the PubMed/Medline and ClinicalTrials.gov databases. Only highly relevant articles in English and published in the last 20 years were selected. Data about immunotherapies coming from preclinical and clinical trials were summarized. EXPERT OPINION The overall level of evidence about the efficacy and safety of immunotherapies for HGGs is noteworthy. Monoclonal antibodies have been approved as second-line treatment, while peptide vaccines, viral gene strategies, and adoptive technologies proved to boost a vivid antitumor immunization. Malignant brain tumor-treating fields are ever-changing in the upcoming years. Constant refinements and development of new routes of drug administration will permit to design of novel immune-based treatment algorithms thus improving the overall survival.
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Affiliation(s)
- Alice Giotta Lucifero
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Sabino Luzzi
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.,Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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Groeneveldt C, Kinderman P, van Stigt Thans JJC, Labrie C, Griffioen L, Sluijter M, van den Wollenberg DJM, Hoeben RC, den Haan JMM, van der Burg SH, van Hall T, van Montfoort N. Preinduced reovirus-specific T-cell immunity enhances the anticancer efficacy of reovirus therapy. J Immunother Cancer 2022; 10:jitc-2021-004464. [PMID: 35853671 PMCID: PMC9301813 DOI: 10.1136/jitc-2021-004464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Many solid tumors do not respond to immunotherapy due to their immunologically cold tumor microenvironment (TME). We and others found that oncolytic viruses (OVs), including reovirus type 3 Dearing, can enhance the efficacy of immunotherapy by recruiting CD8+ T cells to the TME. A significant part of the incoming CD8+ T cells is directed toward reovirus itself, which may be detrimental to the efficacy of OVs. However, here we aim to exploit these incoming virus-specific T cells as anticancer effector cells. METHODS We performed an in-depth characterization of the reovirus-induced T-cell response in immune-competent mice bearing pancreatic KPC3 tumors. The immunodominant CD8+ T-cell epitope of reovirus was identified using epitope prediction algorithms and peptide arrays, and the quantity and quality of reovirus-specific T cells after reovirus administration were assessed using high-dimensional flow cytometry. A synthetic long peptide (SLP)-based vaccination strategy was designed to enhance the intratumoral frequency of reovirus-specific CD8+ T cells. RESULTS Reovirus administration did not induce tumor-specific T cells but rather induced high frequencies of reovirus-specific CD8+ T cells directed to the immunodominant epitope. Priming of reovirus-specific T cells required a low-frequent population of cross-presenting dendritic cells which was absent in Batf3-/- mice. While intratumoral and intravenous reovirus administration induced equal systemic frequencies of reovirus-specific T cells, reovirus-specific T cells were highly enriched in the TME exclusively after intratumoral administration. Here, they displayed characteristics of potent effector cells with high expression of KLRG1, suggesting they may be responsive against local reovirus-infected cells. To exploit these reovirus-specific T cells as anticancer effector cells, we designed an SLP-based vaccination strategy to induce a strong T-cell response before virotherapy. These high frequencies of circulating reovirus-specific T cells were reactivated on intratumoral reovirus administration and significantly delayed tumor growth. CONCLUSIONS These findings provide proof of concept that OV-specific T cells, despite not being tumor-specific, can be exploited as potent effector cells for anticancer treatment when primed before virotherapy. This is an attractive strategy for low-immunogenic tumors lacking tumor-specific T cells.
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Affiliation(s)
- Christianne Groeneveldt
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | - Priscilla Kinderman
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Camilla Labrie
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | - Lisa Griffioen
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | - Marjolein Sluijter
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Rob C Hoeben
- Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Joke M M den Haan
- Molecular Cell Biology and Immunlogy, Amsterdam UMC - Location VUMC, Amsterdam, The Netherlands
| | - Sjoerd H van der Burg
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | - Thorbald van Hall
- Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, The Netherlands
| | - Nadine van Montfoort
- Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
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Brown M. Engaging Pattern Recognition Receptors in Solid Tumors to Generate Systemic Antitumor Immunity. Cancer Treat Res 2022; 183:91-129. [PMID: 35551657 DOI: 10.1007/978-3-030-96376-7_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Malignant tumors frequently exploit innate immunity to evade immune surveillance. The priming, function, and polarization of antitumor immunity fundamentally depends upon context provided by the innate immune system, particularly antigen presenting cells. Such context is determined in large part by sensing of pathogen specific and damage associated features by pathogen recognition receptors (PRRs). PRR activation induces the delivery of T cell priming cues (e.g. chemokines, co-stimulatory ligands, and cytokines) from antigen presenting cells, playing a decisive role in the cancer immunity cycle. Indeed, endogenous PRR activation within the tumor microenvironment (TME) has been shown to generate spontaneous antitumor T cell immunity, e.g., cGAS-STING mediated activation of antigen presenting cells after release of DNA from dying tumor cells. Thus, instigating intratumor PRR activation, particularly with the goal of generating Th1-promoting inflammation that stokes endogenous priming of antitumor CD8+ T cells, is a growing area of clinical investigation. This approach is analogous to in situ vaccination, ultimately providing a personalized antitumor response against relevant tumor associated antigens. Here I discuss clinical stage intratumor modalities that function via activation of PRRs. These approaches are being tested in various solid tumor contexts including melanoma, colorectal cancer, glioblastoma, head and neck squamous cell carcinoma, bladder cancer, and pancreatic cancer. Their mechanism (s) of action relative to other immunotherapy approaches (e.g., antigen-defined cancer vaccines, CAR T cells, dendritic cell vaccines, and immune checkpoint blockade), as well as their potential to complement these approaches are also discussed. Examples to be reviewed include TLR agonists, STING agonists, RIG-I agonists, and attenuated or engineered viruses and bacterium. I also review common key requirements for effective in situ immune activation, discuss differences between various strategies inclusive of mechanisms that may ultimately limit or preclude antitumor efficacy, and provide a summary of relevant clinical data.
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Affiliation(s)
- Michael Brown
- Department of Neurosurgery, Duke University, Durham, NC, USA.
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Wantoch M, Wilson EB, Droop AP, Phillips SL, Coffey M, El‐Sherbiny YM, Holmes TD, Melcher AA, Wetherill LF, Cook GP. Oncolytic virus treatment differentially affects the CD56 dim and CD56 bright NK cell subsets in vivo and regulates a spectrum of human NK cell activity. Immunology 2022; 166:104-120. [PMID: 35156714 PMCID: PMC10357483 DOI: 10.1111/imm.13453] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 01/10/2022] [Indexed: 11/30/2022] Open
Abstract
Natural killer (NK) cells protect against intracellular infection and cancer. These properties are exploited in oncolytic virus (OV) therapy, where antiviral responses enhance anti-tumour immunity. We have analysed the mechanism by which reovirus, an oncolytic dsRNA virus, modulates human NK cell activity. Reovirus activates NK cells in a type I interferon (IFN-I) dependent manner, inducing STAT1 and STAT4 signalling in both CD56dim and CD56bright NK cell subsets. Gene expression profiling revealed the dominance of IFN-I responses and identified induction of genes associated with NK cell cytotoxicity and cell cycle progression, with distinct responses in the CD56dim and CD56bright subsets. However, reovirus treatment inhibited IL-15 induced NK cell proliferation in an IFN-I dependent manner and was associated with reduced AKT signalling. In vivo, human CD56dim and CD56bright NK cells responded with similar kinetics to reovirus treatment, but CD56bright NK cells were transiently lost from the peripheral circulation at the peak of the IFN-I response, suggestive of their redistribution to secondary lymphoid tissue. Coupled with the direct, OV-mediated killing of tumour cells, the activation of both CD56dim and CD56bright NK cells by antiviral pathways induces a spectrum of activity that includes the NK cell-mediated killing of tumour cells and modulation of adaptive responses via the trafficking of IFN-γ expressing CD56bright NK cells to lymph nodes.
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Affiliation(s)
- Michelle Wantoch
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
- Present address:
Wellcome‐MRC Cambridge Stem Cell InstituteUniversity of CambridgeCambridgeUK
| | - Erica B. Wilson
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
| | - Alastair P. Droop
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
- Present address:
Wellcome Trust Sanger InstituteCambridgeUK
| | - Sarah L. Phillips
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
| | | | - Yasser M. El‐Sherbiny
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
- Present address:
School of Science and TechnologyNottingham Trent UniversityNottinghamUK
- Present address:
Clinical Pathology DepartmentFaculty of MedicineMansoura UniversityMansouraEgypt
| | - Tim D. Holmes
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
- Present address:
Department of Clinical ScienceUniversity of BergenBergenNorway
| | - Alan A. Melcher
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
- Present address:
Institute of Cancer ResearchLondonUK
| | - Laura F. Wetherill
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
| | - Graham P. Cook
- Leeds Institute of Medical Research, School of Medicine, University of LeedsLeedsUK
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47
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Ghajar-Rahimi G, Kang KD, Totsch SK, Gary S, Rocco A, Blitz S, Kachurak K, Chambers MR, Li R, Beierle EA, Bag A, Johnston JM, Markert JM, Bernstock JD, Friedman GK. Clinical advances in oncolytic virotherapy for pediatric brain tumors. Pharmacol Ther 2022; 239:108193. [PMID: 35487285 DOI: 10.1016/j.pharmthera.2022.108193] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/10/2022] [Accepted: 04/21/2022] [Indexed: 10/18/2022]
Abstract
Malignant brain tumors constitute nearly one-third of cancer diagnoses in children and have recently surpassed hematologic malignancies as the most lethal neoplasm in the pediatric population. Outcomes for children with brain tumors are unacceptably poor and current standards of care-surgical resection, chemotherapy, and radiation-are associated with significant long-term morbidity. Oncolytic virotherapy has emerged as a promising immunotherapy for the treatment of brain tumors. While the majority of brain tumor clinical trials utilizing oncolytic virotherapy have been in adults, five viruses are being tested in pediatric brain tumor clinical trials: herpes simplex virus (G207), reovirus (pelareorep/Reolysin), measles virus (MV-NIS), poliovirus (PVSRIPO), and adenovirus (DNX-2401, AloCELYVIR). Herein, we review past and current pediatric immunovirotherapy brain tumor trials including the relevant preclinical and clinical research that contributed to their development. We describe mechanisms by which the viruses may overcome barriers in treating pediatric brain tumors, examine challenges associated with achieving effective, durable responses, highlight unique aspects and successes of the trials, and discuss future directions of immunovirotherapy research for the treatment of pediatric brain tumors.
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Affiliation(s)
- Gelare Ghajar-Rahimi
- Medical Scientist Training Program, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kyung-Don Kang
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stacie K Totsch
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Sam Gary
- Medical Scientist Training Program, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Abbey Rocco
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Kara Kachurak
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - M R Chambers
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rong Li
- Department of Pathology, University of Alabama at Birmingham, and Children's of Alabama, Birmingham, AL, USA
| | - Elizabeth A Beierle
- Division of Pediatric Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Asim Bag
- Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - James M Johnston
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - James M Markert
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Joshua D Bernstock
- Department of Neurosurgery, Brigham and Women's Hospital and Boston Children's Hospital, Harvard University, Boston, MA, USA.
| | - Gregory K Friedman
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA; Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA.
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48
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Cristi F, Gutiérrez T, Hitt MM, Shmulevitz M. Genetic Modifications That Expand Oncolytic Virus Potency. Front Mol Biosci 2022; 9:831091. [PMID: 35155581 PMCID: PMC8826539 DOI: 10.3389/fmolb.2022.831091] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/06/2022] [Indexed: 12/20/2022] Open
Abstract
Oncolytic viruses (OVs) are a promising type of cancer therapy since they selectively replicate in tumor cells without damaging healthy cells. Many oncolytic viruses have progressed to human clinical trials, however, their performance as monotherapy has not been as successful as expected. Importantly, recent literature suggests that the oncolytic potential of these viruses can be further increased by genetically modifying the viruses. In this review, we describe genetic modifications to OVs that improve their ability to kill tumor cells directly, to dismantle the tumor microenvironment, or to alter tumor cell signaling and enhance anti-tumor immunity. These advances are particularly important to increase virus spread and reduce metastasis, as demonstrated in animal models. Since metastasis is the principal cause of mortality in cancer patients, having OVs designed to target metastases could transform cancer therapy. The genetic alterations reported to date are only the beginning of all possible improvements to OVs. Modifications described here could be combined together, targeting multiple processes, or with other non-viral therapies with potential to provide a strong and lasting anti-tumor response in cancer patients.
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Affiliation(s)
- Francisca Cristi
- Shmulevitz Laboratory, Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Tomás Gutiérrez
- Goping Laboratory, Department of Biochemistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Mary M. Hitt
- Hitt Laboratory, Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Mary M. Hitt, ; Maya Shmulevitz,
| | - Maya Shmulevitz
- Shmulevitz Laboratory, Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Mary M. Hitt, ; Maya Shmulevitz,
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49
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Andretta E, Costa C, Longobardi C, Damiano S, Giordano A, Pagnini F, Montagnaro S, Quintiliani M, Lauritano C, Ciarcia R. Potential Approaches Versus Approved or Developing Chronic Myeloid Leukemia Therapy. Front Oncol 2022; 11:801779. [PMID: 34993151 PMCID: PMC8724906 DOI: 10.3389/fonc.2021.801779] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 11/12/2021] [Indexed: 12/22/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) have revolutionized the treatment of patients with chronic myeloid leukemia (CML). However, continued use of these inhibitors has contributed to the increase in clinical resistance and the persistence of resistant leukemic stem cells (LSCs). So, there is an urgent need to introduce additional targeted and selective therapies to eradicate quiescent LSCs, and to avoid the relapse and disease progression. Here, we focused on emerging BCR-ABL targeted and non-BCR-ABL targeted drugs employed in clinical trials and on alternative CML treatments, including antioxidants, oncolytic virus, engineered exosomes, and natural products obtained from marine organisms that could pave the way for new therapeutic approaches for CML patients.
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Affiliation(s)
- Emanuela Andretta
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
| | - Caterina Costa
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Consiglia Longobardi
- Department of Mental, Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Largo Madonna delle Grazie, Naples, Italy
| | - Sara Damiano
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
| | - Antonio Giordano
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Francesco Pagnini
- Unit of Radiology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Serena Montagnaro
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
| | | | - Chiara Lauritano
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Roberto Ciarcia
- Department of Veterinary Medicine and Animal Productions, University of Naples "Federico II", Naples, Italy
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50
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Vorobyev PO, Babaeva FE, Panova AV, Shakiba J, Kravchenko SK, Soboleva AV, Lipatova AV. Oncolytic Viruses in the Therapy of Lymphoproliferative Diseases. Mol Biol 2022; 56:684-695. [PMID: 36217339 PMCID: PMC9534467 DOI: 10.1134/s0026893322050144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 11/23/2022]
Abstract
Cancer is a leading causes of death. Despite significant success in the treatment of lymphatic system tumors, the problems of relapse, drug resistance and effectiveness of therapy remain relevant. Oncolytic viruses are able to replicate in tumor cells and destroy them without affecting normal, healthy tissues. By activating antitumor immunity, viruses are effective against malignant neoplasms of various nature. In lymphoproliferative diseases with a drug-resistant phenotype, many cases of remissions have been described after viral therapy. The current level of understanding of viral biology and the discovery of host cell interaction mechanisms made it possible to create unique strains with high oncoselectivity widely used in clinical practice in recent years.
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Affiliation(s)
- P. O. Vorobyev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - F. E. Babaeva
- National Medical Research Center for Hematology, Ministry of Health of Russia, 125167 Moscow, Russia
| | - A. V. Panova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 117971 Moscow, Russia
| | - J. Shakiba
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - S. K. Kravchenko
- National Medical Research Center for Hematology, Ministry of Health of Russia, 125167 Moscow, Russia
| | - A. V. Soboleva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - A. V. Lipatova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
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