1
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Peng J, Li S, Ti H. Sensitize Tumor Immunotherapy: Immunogenic Cell Death Inducing Nanosystems. Int J Nanomedicine 2024; 19:5895-5930. [PMID: 38895146 PMCID: PMC11184231 DOI: 10.2147/ijn.s457782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Low immunogenicity of tumors poses a challenge in the development of effective tumor immunotherapy. However, emerging evidence suggests that certain therapeutic approaches, such as chemotherapy, radiotherapy, and phototherapy, can induce varying degrees of immunogenic cell death (ICD). This ICD phenomenon leads to the release of tumor antigens and the maturation of dendritic cells (DCs), thereby enhancing tumor immunogenicity and promoting immune responses. However, the use of a single conventional ICD inducer often fails to achieve in situ tumor ablation and establish long-term anti-tumor immune responses. Furthermore, the induction of ICD induction varies among different approaches, and the distribution of the therapeutic agent within the body influences the level of ICD and the occurrence of toxic side effects. To address these challenges and further boost tumor immunity, researchers have explored nanosystems as inducers of ICD in combination with tumor immunotherapy. This review examines the mechanisms of ICD and different induction methods, with a specific focus on the relationship between ICD and tumor immunity. The aim is to explore the research advancements utilizing various nanomaterials to enhance the body's anti-tumor effects by inducing ICD. This paper aims to contribute to the development and clinical application of nanomaterial-based ICD inducers in the field of cancer immunotherapy by providing important theoretical guidance and practical references.
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Affiliation(s)
- Jianlan Peng
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Shiying Li
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Huihui Ti
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
- Guangdong Province Precise Medicine and Big Data Engineering Technology Research Center for Traditional Chinese Medicine, Guangzhou, People’s Republic of China
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2
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Shakiba Y, Vorobyev PO, Yusubalieva GM, Kochetkov DV, Zajtseva KV, Valikhov MP, Kalsin VA, Zabozlaev FG, Semkina AS, Troitskiy AV, Baklaushev VP, Chumakov PM, Lipatova AV. Oncolytic therapy with recombinant vaccinia viruses targeting the interleukin-15 pathway elicits a synergistic response. Mol Ther Oncolytics 2023; 29:158-168. [PMID: 37387795 PMCID: PMC10300409 DOI: 10.1016/j.omto.2023.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 05/10/2023] [Indexed: 07/01/2023] Open
Abstract
We developed recombinant variants of oncolytic vaccinia virus LIVP strain expressing interleukin-15 (IL-15) or its receptor subunit alpha (IL-15Rα) to stimulate IL-15-dependent immune cells. We evaluated their oncolytic activity either alone or in combination with each other in vitro and in vivo using the murine CT26 colon carcinoma and 4T1 breast carcinoma models. We demonstrated that the admixture of these recombinant variants could promote the generation of the IL-15/IL-15Rα complex. In vitro studies indicated that 4T1 breast cancer cells were more susceptible to the developed recombinant viruses. In vivo studies showed significant survival benefits and tumor regression in 4T1 breast cancer syngeneic mice that received a combination of LIVP-IL15-RFP with LIVP-IL15Ra-RFP. Histological analysis showed recruited lymphocytes at the tumor region, while no harmful effects to the liver or spleen of the animals were detected. Evaluating tumor-infiltrated lymphocytes represented profound activation of cytotoxic T cells and macrophages in mice receiving combination therapy. Thus, our experiments showed superior oncolytic effectiveness of simultaneous injection of LIVP-IL15-RFP and LIVP-IL15Ra-RFP in breast cancer-bearing mice. The combined therapy by these recombinant variants represents a potent and versatile approach for developing new immunotherapies for breast cancer.
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Affiliation(s)
- Yasmin Shakiba
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Pavel O. Vorobyev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Gaukhar M. Yusubalieva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, FMBA of Russia, 115682 Moscow, Russian Federation
- Federal Center of Brain Research and Neurotechnologies, FMBA of Russia, 117513 Moscow, Russian Federation
| | - Dmitry V. Kochetkov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ksenia V. Zajtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Marat P. Valikhov
- Department of Neurobiology, Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, 119034 Moscow, Russia
- Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University 117997 Moscow, Russia
| | - Vladimir A. Kalsin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, FMBA of Russia, 115682 Moscow, Russian Federation
| | - Fedor G. Zabozlaev
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, FMBA of Russia, 115682 Moscow, Russian Federation
| | - Alevtina S. Semkina
- Department of Neurobiology, Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, 119034 Moscow, Russia
- Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University 117997 Moscow, Russia
| | - Alexander V. Troitskiy
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, FMBA of Russia, 115682 Moscow, Russian Federation
| | - Vladimir P. Baklaushev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Federal Research and Clinical Center for Specialized Types of Medical Care and Medical Technologies, FMBA of Russia, 115682 Moscow, Russian Federation
- Federal Center of Brain Research and Neurotechnologies, FMBA of Russia, 117513 Moscow, Russian Federation
| | - Peter M. Chumakov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anastasia V. Lipatova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
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3
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Ghasemi Darestani N, Gilmanova AI, Al-Gazally ME, Zekiy AO, Ansari MJ, Zabibah RS, Jawad MA, Al-Shalah SAJ, Rizaev JA, Alnassar YS, Mohammed NM, Mustafa YF, Darvishi M, Akhavan-Sigari R. Mesenchymal stem cell-released oncolytic virus: an innovative strategy for cancer treatment. Cell Commun Signal 2023; 21:43. [PMID: 36829187 PMCID: PMC9960453 DOI: 10.1186/s12964-022-01012-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/10/2022] [Indexed: 02/26/2023] Open
Abstract
Oncolytic viruses (OVs) infect, multiply, and finally remove tumor cells selectively, causing no damage to normal cells in the process. Because of their specific features, such as, the ability to induce immunogenic cell death and to contain curative transgenes in their genomes, OVs have attracted attention as candidates to be utilized in cooperation with immunotherapies for cancer treatment. This treatment takes advantage of most tumor cells' inherent tendency to be infected by certain OVs and both innate and adaptive immune responses are elicited by OV infection and oncolysis. OVs can also modulate tumor microenvironment and boost anti-tumor immune responses. Mesenchymal stem cells (MSC) are gathering interest as promising anti-cancer treatments with the ability to address a wide range of cancers. MSCs exhibit tumor-trophic migration characteristics, allowing them to be used as delivery vehicles for successful, targeted treatment of isolated tumors and metastatic malignancies. Preclinical and clinical research were reviewed in this study to discuss using MSC-released OVs as a novel method for the treatment of cancer. Video Abstract.
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Affiliation(s)
| | - Anna I Gilmanova
- Department of Prosthetic Dentistry of the I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | | | - Angelina O Zekiy
- Department of Prosthetic Dentistry of the I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | | | - Saif A J Al-Shalah
- Medical Laboratories Techniques Department, Al-Mustaqbal University College, Babylon, Iraq
| | - Jasur Alimdjanovich Rizaev
- Department of Public Health and Healthcare Management, Rector, Samarkand State Medical University, Samarkand, Uzbekistan
| | | | | | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - Mohammad Darvishi
- Department of Aerospace and Subaquatic Medicine, Infectious Diseases and Tropical Medicine Research Center (IDTMRC), AJA University of Medical Sciences, Tehran, Iran.
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center, Tuebingen, Germany.,Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University, Warsaw, Poland
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4
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Revisiting the melanomagenic pathways and current therapeutic approaches. Mol Biol Rep 2022; 49:9651-9671. [DOI: 10.1007/s11033-022-07412-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 03/22/2022] [Indexed: 01/10/2023]
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5
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Stereotactic body radiation combined with oncolytic vaccinia virus induces potent anti-tumor effect by triggering tumor cell necroptosis and DAMPs. Cancer Lett 2021; 523:149-161. [PMID: 34606928 DOI: 10.1016/j.canlet.2021.09.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/12/2021] [Accepted: 09/27/2021] [Indexed: 02/07/2023]
Abstract
Radiation is an integral part of cancer therapy. With the emergence of oncolytic vaccinia virus immunotherapy, it is important to study the combination of radiation and vaccinia virus in cancer therapy. In this study, we investigated the anti-tumor effect of and immune mechanisms underlying the combination of high-dose hypofractionated stereotactic body radiotherapy (SBRT) and oncolytic vaccinia virus in preclinical murine models. The combination enhanced the in vivo anti-tumor effect and increased the numbers of splenic CD4+Ki-67+ helper T lymphocytes and CD8+Ki-67+ cytotoxic T lymphocytes. Combinational therapy also increased tumor-infiltrating CD3+CD4+ helper T lymphocytes and CD3+CD8+ cytotoxic T lymphocytes, but decreased tumor-infiltrating regulatory T cells. In addition, SBRT combined with oncolytic vaccinia virus enhanced in vitro cell death, partly through necroptosis, and subsequent release of damage-associated molecular patterns (DAMPs), and shifted the macrophage M1/M2 ratio. We concluded that SBRT combined with oncolytic vaccinia virus can trigger tumor cell necroptosis and modify macrophages through the release of DAMPs, and then generate potent anti-tumor immunity and effects. Thus, combined therapy is potentially an important strategy for clinical cancer therapy.
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6
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Mistarz A, Graczyk M, Winkler M, Singh PK, Cortes E, Miliotto A, Liu S, Long M, Yan L, Stablewski A, O'Loughlin K, Minderman H, Odunsi K, Rokita H, McGray AJR, Zsiros E, Kozbor D. Induction of cell death in ovarian cancer cells by doxorubicin and oncolytic vaccinia virus is associated with CREB3L1 activation. MOLECULAR THERAPY-ONCOLYTICS 2021; 23:38-50. [PMID: 34632049 PMCID: PMC8479291 DOI: 10.1016/j.omto.2021.04.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 04/24/2021] [Indexed: 12/12/2022]
Abstract
We have demonstrated that oncolytic vaccinia virus synergizes with doxorubicin (DOX) in inducing immunogenic cell death in platinum-resistant ovarian cancer cells and increases survival in syngeneic and xenograft tumor models. However, the mechanisms underlying the virus- and doxorubicin-mediated cancer cell death remain unknown. In this study, we investigated the effect of the oncolytic virus and doxorubicin used alone or in combination on activation of the cytoplasmic transcription factor CREB3L1 (cyclic AMP [cAMP] response element-binding protein 3-like 1) in ovarian cancer cell lines and clinical specimens. We demonstrated that doxorubicin-mediated cell death in ovarian cancer cell lines was associated with nuclear translocation of CREB3L1 and that the effect was augmented by infection with oncolytic vaccinia virus or treatment with recombinant interferon (IFN)-β used as a viral surrogate. This combination treatment was also effective in mediating nuclear translocation of CREB3L1 in cancer cells isolated from ovarian tumor biopsies at different stages of disease progression. The measurement of CREB3L1 expression in clinical specimens of ovarian cancer revealed lack of correlation with the stage of disease progression, suggesting that understanding the mechanisms of nuclear accumulation of CREB3L1 after doxorubicin treatment alone or in combination with oncolytic virotherapy may lead to the development of more effective treatment strategies against ovarian cancer.
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Affiliation(s)
- Anna Mistarz
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Matthew Graczyk
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Marta Winkler
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Prashant K Singh
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Eduardo Cortes
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Anthony Miliotto
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Song Liu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Mark Long
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Li Yan
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Aimee Stablewski
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Kieran O'Loughlin
- Department of Flow and Image Cytometry, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Hans Minderman
- Department of Flow and Image Cytometry, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Kunle Odunsi
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Hanna Rokita
- Faculty of Biochemistry, Biophysics, and Biotechnology, Jagiellonian University, Kraków, Poland
| | - A J Robert McGray
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Emese Zsiros
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Danuta Kozbor
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
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7
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Döring M, De Azevedo K, Blanco-Rodriguez G, Nadalin F, Satoh T, Gentili M, Lahaye X, De Silva NS, Conrad C, Jouve M, Centlivre M, Lévy Y, Manel N. Single-cell analysis reveals divergent responses of human dendritic cells to the MVA vaccine. Sci Signal 2021; 14:14/697/eabd9720. [PMID: 34429383 DOI: 10.1126/scisignal.abd9720] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Modified vaccinia Ankara (MVA) is a live, attenuated human smallpox vaccine and a vector for the development of new vaccines against infectious diseases and cancer. Efficient activation of the immune system by MVA partially relies on its encounter with dendritic cells (DCs). MVA infection of DCs leads to multiple outcomes, including cytokine production, activation of costimulatory molecules for T cell stimulation, and cell death. Here, we examined how these diverse responses are orchestrated in human DCs. Single-cell analyses revealed that the response to MVA infection in DCs was limited to early viral gene expression. In response to the early events in the viral cycle, we found that DCs grouped into three distinct clusters. A cluster of infected cells sensed the MVA genome by the intracellular innate immunity pathway mediated by cGAS, STING, TBK1, and IRF3 and subsequently produced inflammatory cytokines. In response to these cytokines, a cluster of noninfected bystander cells increased costimulatory molecule expression. A separate cluster of infected cells underwent caspase-dependent apoptosis. Induction of apoptosis persisted after inhibition of innate immunity pathway mediators independently of previously described IRF-dependent or replication-dependent pathways and was a response to early MVA gene expression. Together, our study identified multiple mechanisms that underlie the interactions of MVA with human DCs.
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Affiliation(s)
- Marius Döring
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France.,Vaccine Research Institute (VRI), Créteil, Paris, France
| | - Kevin De Azevedo
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Guillermo Blanco-Rodriguez
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Francesca Nadalin
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Takeshi Satoh
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France.,Vaccine Research Institute (VRI), Créteil, Paris, France
| | - Matteo Gentili
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Xavier Lahaye
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Nilushi S De Silva
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Cécile Conrad
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Mabel Jouve
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Mireille Centlivre
- Vaccine Research Institute (VRI), Créteil, Paris, France.,INSERM U955, Université Paris Est Créteil, Créteil, France
| | - Yves Lévy
- Vaccine Research Institute (VRI), Créteil, Paris, France.,INSERM U955, Université Paris Est Créteil, Créteil, France.,AP-HP, Hôpital Henri-Mondor Albert-Chenevier, Service d'Immunologie Clinique et Maladies Infectieuses, Créteil, France
| | - Nicolas Manel
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France. .,Vaccine Research Institute (VRI), Créteil, Paris, France
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8
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Zhang B, Wang X, Cheng P. Remodeling of Tumor Immune Microenvironment by Oncolytic Viruses. Front Oncol 2021; 10:561372. [PMID: 33680911 PMCID: PMC7934618 DOI: 10.3389/fonc.2020.561372] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 12/30/2020] [Indexed: 02/05/2023] Open
Abstract
Oncolytic viruses (OVs) are potential antitumor agents with unique therapeutic mechanisms. They possess the ability of direct oncolysis and the induction of antitumor immunity. OV can be genetically engineered to potentiate antitumor efficacy by remodeling the tumor immune microenvironment. The present mini review mainly describes the effect of OVs on remodeling of the tumor immune microenvironment and explores the mechanism of regulation of the host immune system and the promotion of the immune cells to destroy carcinoma cells by OVs. Furthermore, this article focuses on the utilization of OVs as vectors for the delivery of immunomodulatory cytokines or antibodies.
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Affiliation(s)
- Bin Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xilei Wang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ping Cheng
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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9
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Li Y, Shen Y, Zhao R, Samudio I, Jia W, Bai X, Liang T. Oncolytic virotherapy in hepato-bilio-pancreatic cancer: The key to breaking the log jam? Cancer Med 2020; 9:2943-2959. [PMID: 32130786 PMCID: PMC7196045 DOI: 10.1002/cam4.2949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 02/07/2023] Open
Abstract
Traditional therapies have limited efficacy in hepatocellular carcinoma, pancreatic cancer, and biliary tract cancer, especially for advanced and refractory cancers. Through a deeper understanding of antitumor immunity and the tumor microenvironment, novel immunotherapies are becoming available for cancer treatment. Oncolytic virus (OV) therapy is an emerging type of immunotherapy that has demonstrated effective antitumor efficacy in many preclinical studies and clinical studies. Thus, it may represent a potential feasible treatment for hard to treat gastrointestinal (GI) tumors. Here, we summarize the research progress of OV therapy for the treatment of hepato-bilio-pancreatic cancers. In general, most OV therapies exhibits potent, specific oncolysis both in cell lines in vitro and the animal models in vivo. Currently, several clinical trials have suggested that OV therapy may also be effective in patients with refractory hepato-bilio-pancreatic cancer. Multiple strategies such as introducing immunostimulatory genes, modifying virus capsid and combining various other therapeutic modalities have been shown enhanced specific oncolysis and synergistic anti-cancer immune stimulation. Combining OV with other antitumor therapies may become a more effective strategy than using virus alone. Nevertheless, more studies are needed to better understand the mechanisms underlying the therapeutic effects of OV, and to design appropriate dosing and combination strategies.
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Affiliation(s)
- Yuwei Li
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China.,Innovation Center for the study of Pancreatic Diseases, Hangzhou, China
| | - Yinan Shen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China.,Innovation Center for the study of Pancreatic Diseases, Hangzhou, China
| | | | | | - William Jia
- Virogin Biotech Canada Ltd, Vancouver, Canada
| | - Xueli Bai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China.,Innovation Center for the study of Pancreatic Diseases, Hangzhou, China
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Pancreatic Disease, Hangzhou, China.,Innovation Center for the study of Pancreatic Diseases, Hangzhou, China
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10
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Yang R, Wang L, Sheng J, Huang Q, Pan D, Xu Y, Yan J, Wang X, Dong Z, Yang M. Combinatory effects of vaccinia virus VG9 and the STAT3 inhibitor Stattic on cancer therapy. Arch Virol 2019; 164:1805-1814. [PMID: 31087190 DOI: 10.1007/s00705-019-04257-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 03/22/2019] [Indexed: 01/08/2023]
Abstract
The recombinant vaccinia virus VG9 and the STAT3 inhibitor Stattic were combined to kill cancer cells via both oncolytic activity and inhibition of STAT3 phosphorylation in cells. The combinatory anti-tumour activity of these compounds was superior to the activity of VG9 or Stattic alone in vivo. The inhibition of tumour growth occurred via increased apoptosis and autophagy pathways. Furthermore, the combinatory anti-tumour activity was more efficient than that of VG9 or Stattic alone on xenografts, especially in nude mice.
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Affiliation(s)
- Runlin Yang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China.
| | - Lizhen Wang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China
| | - Jie Sheng
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, 210029, China
| | - Qianhuan Huang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, 210029, China
| | - Donghui Pan
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China
| | - Yuping Xu
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China
| | - Junjie Yan
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China
| | - Xinyu Wang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China
| | - Ziyue Dong
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China
| | - Min Yang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, No. 20, Qianrong Road, Wuxi, 214063, China. .,The First School of Clinical Medicine, Nanjing Medical University, Nanjing, 210029, China. .,School of Pharmaceutical Science, Zhengzhou University, Zhengzhou, 450000, China.
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11
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Sánchez D, Cesarman-Maus G, Amador-Molina A, Lizano M. Oncolytic Viruses for Canine Cancer Treatment. Cancers (Basel) 2018; 10:cancers10110404. [PMID: 30373251 PMCID: PMC6266482 DOI: 10.3390/cancers10110404] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/16/2018] [Accepted: 10/23/2018] [Indexed: 12/17/2022] Open
Abstract
Oncolytic virotherapy has been investigated for several decades and is emerging as a plausible biological therapy with several ongoing clinical trials and two viruses are now approved for cancer treatment in humans. The direct cytotoxicity and immune-stimulatory effects make oncolytic viruses an interesting strategy for cancer treatment. In this review, we summarize the results of in vitro and in vivo published studies of oncolytic viruses in different phases of evaluation in dogs, using PubMed and Google scholar as search platforms, without time restrictions (to date). Natural and genetically modified oncolytic viruses were evaluated with some encouraging results. The most studied viruses to date are the reovirus, myxoma virus, and vaccinia, tested mostly in solid tumors such as osteosarcomas, mammary gland tumors, soft tissue sarcomas, and mastocytomas. Although the results are promising, there are issues that need addressing such as ensuring tumor specificity, developing optimal dosing, circumventing preexisting antibodies from previous exposure or the development of antibodies during treatment, and assuring a reasonable safety profile, all of which are required in order to make this approach a successful therapy in dogs.
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Affiliation(s)
- Diana Sánchez
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico.
| | - Gabriela Cesarman-Maus
- Department of Hematology, Instituto Nacional de Cancerología, Mexico City 14080, Mexico.
| | - Alfredo Amador-Molina
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico.
| | - Marcela Lizano
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico.
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12
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Tappe KA, Budida R, Stankov MV, Frenz T, R Shah H, Volz A, Sutter G, Kalinke U, Behrens GMN. Immunogenic cell death of dendritic cells following modified vaccinia virus Ankara infection enhances CD8 + T cell proliferation. Eur J Immunol 2018; 48:2042-2054. [PMID: 30259962 DOI: 10.1002/eji.201847632] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 08/09/2018] [Accepted: 09/25/2018] [Indexed: 01/13/2023]
Abstract
"Immunogenic cell death" (ICD) is associated with the emission of so-called damage-associated molecular patterns (DAMPs) which trigger the immune response against dead-cell associated antigens. The secretion of the DAMP, adenosine triphosphate (ATP) has been shown to be autophagy-dependent. Here, we demonstrate that Modified Vaccinia virus Ankara (MVA), a highly attenuated strain of vaccinia virus, induces both cell death and autophagy in murine bone marrow-derived dendritic cells (BMDCs), which in turn confer the (cross-)priming of OVA-specific cytotoxic T cells (OT-I cells). Additionally, we show that MVA infection leads to increased extracellular ATP (eATP) as well as intracellular ATP (iATP) levels, with the latter being influenced by the autophagy. Furthermore, we show that the increased eATP supports the proliferation of OT-I cells and inhibition of the P2RX7 receptors results in an abrogation of the proliferation. These data reveal novel mechanisms on how MVA enhances adaptive immunity in vaccine strategies.
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Affiliation(s)
- Kim A Tappe
- Department for Clinical Immunology and Rheumatology, Hanover Medical School, Hanover, Germany
| | - Ramachandramouli Budida
- Department for Clinical Immunology and Rheumatology, Hanover Medical School, Hanover, Germany
| | - Metodi V Stankov
- Department for Clinical Immunology and Rheumatology, Hanover Medical School, Hanover, Germany
| | - Theresa Frenz
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hanover Medical School and the Helmholtz Centre for Infection Research, Hanover, Germany
| | - Harshit R Shah
- Department for Clinical Immunology and Rheumatology, Hanover Medical School, Hanover, Germany
| | - Asisa Volz
- German Center for Infection Research (DZIF), partner site Munich, Germany.,Institute for Infectious Diseases and Zoonoses, Ludwig Maximilian University of Munich, Munich, Germany
| | - Gerd Sutter
- German Center for Infection Research (DZIF), partner site Munich, Germany.,Institute for Infectious Diseases and Zoonoses, Ludwig Maximilian University of Munich, Munich, Germany
| | - Ulrich Kalinke
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hanover Medical School and the Helmholtz Centre for Infection Research, Hanover, Germany
| | - Georg M N Behrens
- Department for Clinical Immunology and Rheumatology, Hanover Medical School, Hanover, Germany.,German Center for Infection Research (DZIF), partner site Hannover-Brunswick, Hanover, Germany
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13
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Twumasi-Boateng K, Pettigrew JL, Kwok YYE, Bell JC, Nelson BH. Oncolytic viruses as engineering platforms for combination immunotherapy. Nat Rev Cancer 2018; 18:419-432. [PMID: 29695749 DOI: 10.1038/s41568-018-0009-4] [Citation(s) in RCA: 257] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To effectively build on the recent successes of immune checkpoint blockade, adoptive T cell therapy and cancer vaccines, it is critical to rationally design combination strategies that will increase and extend efficacy to a larger proportion of patients. For example, the combination of anti-cytotoxic T lymphocyte-associated antigen 4 (CTLA4) and anti-programmed cell death protein 1 (PD1) immune checkpoint inhibitors essentially doubles the response rate in certain patients with metastatic melanoma. However, given the heterogeneity of cancer, it seems likely that even more complex combinations of immunomodulatory agents may be required to obtain consistent, durable therapeutic responses against a broad spectrum of cancers. This carries serious implications in terms of toxicities for patients, feasibility for care providers and costs for health-care systems. A compelling solution is offered by oncolytic viruses (OVs), which can be engineered to selectively replicate within and destroy tumour tissue while simultaneously augmenting antitumour immunity. In this Opinion article, we argue that the future of immunotherapy will include OVs that function as multiplexed immune-modulating platforms expressing factors such as immune checkpoint inhibitors, tumour antigens, cytokines and T cell engagers. We illustrate this concept by following the trials and tribulations of tumour-reactive T cells from their initial priming through to the execution of cytotoxic effector function in the tumour bed. We highlight the myriad opportunities for OVs to help overcome critical barriers in the T cell journey, leading to new synergistic mechanisms in the battle against cancer.
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Affiliation(s)
- Kwame Twumasi-Boateng
- Trev and Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
| | - Jessica L Pettigrew
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Y Y Eunice Kwok
- Trev and Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
| | - John C Bell
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada.
| | - Brad H Nelson
- Trev and Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada.
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada.
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.
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14
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Optimizing the Targeting of Mouse Parvovirus 1 to Murine Melanoma Selects for Recombinant Genomes and Novel Mutations in the Viral Capsid Gene. Viruses 2018; 10:v10020054. [PMID: 29385689 PMCID: PMC5850361 DOI: 10.3390/v10020054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 01/23/2018] [Accepted: 01/27/2018] [Indexed: 12/15/2022] Open
Abstract
Combining virus-enhanced immunogenicity with direct delivery of immunomodulatory molecules would represent a novel treatment modality for melanoma, and would require development of new viral vectors capable of targeting melanoma cells preferentially. Here we explore the use of rodent protoparvoviruses targeting cells of the murine melanoma model B16F10. An uncloned stock of mouse parvovirus 1 (MPV1) showed some efficacy, which was substantially enhanced following serial passage in the target cell. Molecular cloning of the genes of both starter and selected virus pools revealed considerable sequence diversity. Chimera analysis mapped the majority of the improved infectivity to the product of the major coat protein gene, VP2, in which linked blocks of amino acid changes and one or other of two apparently spontaneous mutations were selected. Intragenic chimeras showed that these represented separable components, both contributing to enhanced infection. Comparison of biochemical parameters of infection by clonal viruses indicated that the enhancement due to changes in VP2 operates after the virus has bound to the cell surface and penetrated into the cell. Construction of an in silico homology model for MPV1 allowed placement of these changes within the capsid shell, and revealed aspects of the capsid involved in infection initiation that had not been previously recognized.
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15
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Kim M, Nitschké M, Sennino B, Murer P, Schriver BJ, Bell A, Subramanian A, McDonald CE, Wang J, Cha H, Bourgeois-Daigneault MC, Kirn DH, Bell JC, De Silva N, Breitbach CJ, McDonald DM. Amplification of Oncolytic Vaccinia Virus Widespread Tumor Cell Killing by Sunitinib through Multiple Mechanisms. Cancer Res 2017; 78:922-937. [PMID: 29259007 DOI: 10.1158/0008-5472.can-15-3308] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 10/30/2017] [Accepted: 12/15/2017] [Indexed: 12/22/2022]
Abstract
Oncolytic viruses pose many questions in their use in cancer therapy. In this study, we assessed the potential of mpJX-594 (mouse-prototype JX-594), a replication-competent vaccinia virus administered by intravenous injection, to target the tumor vasculature, produce immune activation and tumor cell killing more widespread than the infection, and suppress invasion and metastasis. These actions were examined in RIP-Tag2 transgenic mice with pancreatic neuroendocrine tumors that developed spontaneously and progressed as in humans. mpJX-594 initially infected tumor vascular endothelial cells, leading to vascular pruning and prolonged leakage in tumors but not in normal organs; parallel effects were observed in U87 gliomas. Viral infection spread to tumor cells, where tumor cell killing was much more widespread than the infection. Widespread tumor cell killing at 5 days was prevented by depletion of CD8+ T lymphocytes and did not require GM-CSF, as mpJX-594 variants that expressed human, mouse, or no GM-CSF produced equivalent amounts of killing. The antivascular, antitumor, and antimetastatic effects of mpJX-594 were amplified by concurrent or sequential administration of sunitinib, a multitargeted receptor tyrosine kinase inhibitor. These effects were not mimicked by selective inhibition of VEGFR2 despite equivalent vascular pruning, but were accompanied by suppression of regulatory T cells and greater influx of activated CD8+ T cells. Together, our results showed that mpJX-594 targets tumor blood vessels, spreads secondarily to tumor cells, and produces widespread CD8+ T-cell-dependent tumor cell killing in primary tumors and metastases, and that these effects can be amplified by coadministration of sunitinib.Significance: These findings reveal multiple unrecognized features of the antitumor properties of oncolytic vaccinia viruses, all of which can be amplified by the multitargeted kinase inhibitor sunitinib. Cancer Res; 78(4); 922-37. ©2017 AACR.
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Affiliation(s)
- Minah Kim
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Maximilian Nitschké
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Barbara Sennino
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Patrizia Murer
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Brian J Schriver
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Alexander Bell
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Aishwarya Subramanian
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Corry E McDonald
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | - Jiahu Wang
- Centre for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Howard Cha
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California
| | | | - David H Kirn
- SillaJen Biotherapeutics Inc., San Francisco, California
| | - John C Bell
- Centre for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Naomi De Silva
- SillaJen Biotherapeutics Inc., San Francisco, California
| | | | - Donald M McDonald
- UCSF Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute and Department of Anatomy, University of California, San Francisco, San Francisco, California.
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16
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Veyer DL, Carrara G, Maluquer de Motes C, Smith GL. Vaccinia virus evasion of regulated cell death. Immunol Lett 2017; 186:68-80. [PMID: 28366525 DOI: 10.1016/j.imlet.2017.03.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/21/2017] [Accepted: 03/28/2017] [Indexed: 12/17/2022]
Abstract
Regulated cell death is a powerful anti-viral mechanism capable of aborting the virus replicative cycle and alerting neighbouring cells to the threat of infection. The biological importance of regulated cell death is illustrated by the rich repertoire of host signalling cascades causing cell death and by the multiple strategies exhibited by viruses to block death signal transduction and preserve cell viability. Vaccinia virus (VACV), a poxvirus and the vaccine used to eradicate smallpox, encodes multiple proteins that interfere with apoptotic, necroptotic and pyroptotic signalling. Here the current knowledge on cell death pathways and how VACV proteins interact with them is reviewed. Studying the mechanisms evolved by VACV to counteract host programmed cell death has implications for its successful use as a vector for vaccination and as an oncolytic agent against cancer.
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Affiliation(s)
- David L Veyer
- Laboratoire de Virologie, Hôpital Européen Georges Pompidou, 20 Rue Leblanc, 75015 Paris, France
| | - Guia Carrara
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom
| | | | - Geoffrey L Smith
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom.
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17
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A novel, polymer-coated oncolytic measles virus overcomes immune suppression and induces robust antitumor activity. MOLECULAR THERAPY-ONCOLYTICS 2016; 3:16022. [PMID: 27847861 PMCID: PMC5091787 DOI: 10.1038/mto.2016.22] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/06/2016] [Accepted: 06/06/2016] [Indexed: 12/16/2022]
Abstract
Although various therapies are available to treat cancers, including surgery, chemotherapy, and radiotherapy, cancer has been the leading cause of death in Japan for the last 30 years, and new therapeutic modalities are urgently needed. As a new modality, there has recently been great interest in oncolytic virotherapy, with measles virus being a candidate virus expected to show strong antitumor effects. The efficacy of virotherapy, however, was strongly limited by the host immune response in previous clinical trials. To enhance and prolong the antitumor activity of virotherapy, we combined the use of two newly developed tools: the genetically engineered measles virus (MV-NPL) and the multilayer virus-coating method of layer-by-layer deposition of ionic polymers. We compared the oncolytic effects of this polymer-coated MV-NPL with the naked MV-NPL, both in vitro and in vivo. In the presence of anti-MV neutralizing antibodies, the polymer-coated virus showed more enhanced oncolytic activity than did the naked MV-NPL in vitro. We also examined antitumor activities in virus-treated mice. Complement-dependent cytotoxicity and antitumor activities were higher in mice treated with polymer-coated MV-NPL than in mice treated with the naked virus. This novel, polymer-coated MV-NPL is promising for clinical cancer therapy in the future.
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18
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Oncolytic virus efficiency inhibited growth of tumour cells with multiple drug resistant phenotype in vivo and in vitro. J Transl Med 2016; 14:241. [PMID: 27538520 PMCID: PMC4989492 DOI: 10.1186/s12967-016-1002-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 08/05/2016] [Indexed: 12/17/2022] Open
Abstract
Background Tumour resistance to a wide range of drugs (multiple drug resistant, MDR) acquired after intensive chemotherapy is considered to be the main obstacle of the curative treatment of cancer patients. Recent work has shown that oncolytic viruses demonstrated prominent potential for effective treatment of diverse cancers. Here, we evaluated whether genetically modified vaccinia virus (LIVP-GFP) may be effective in treatment of cancers displaying MDR phenotype. Methods LIVP-GFP replication, transgene expression and cytopathic effects were analysed in human cervical carcinomas KB-3-1 (MDR−), KB-8-5 (MDR+) and in murine melanoma B-16 (MDR−), murine lymphosarcomas RLS and RLS-40 (MDR+). To investigate the efficacy of this therapy in vivo, we treated immunocompetent mice bearing murine lymphosarcoma RLS-40 (MDR+) (6- to 8-week-old female CBA mice; n = 10/group) or melanoma B-16 (MDR−) (6- to 8-week-old female C57Bl mice; n = 6/group) with LIVP-GFP (5 × 107 PFU of virus in 0.1 mL of IMDM immediately and 4 days after tumour implantation). Results We demonstrated that LIVP-GFP replication was effective in human cervical carcinomas KB-3-1 (MDR−) and KB-8-5 (MDR+) and in murine melanoma B-16 (MDR−), whereas active viral production was not detected in murine lymphosarcomas RLS and RLS-40 (MDR+). Additionally, it was found that in tumour models in immunocompetent mice under the optimized regimen intratumoural injections of LIVP-GFP significantly inhibited melanoma B16 (33 % of mice were with complete response after 90 days) and RLS-40 tumour growth (fourfold increase in tumour doubling time) as well as metastasis. Conclusion The anti-tumour activity of LIVP-GFP is a result of direct oncolysis of tumour cells in case of melanoma B-16 because the virus effectively replicates and destroys these cells, and virus-mediated activation of the host immune system followed by immunologically mediated destruction of of tumour cells in case of lymphosarcoma RLS-40. Thus, the recombinant vaccinia virus LIVP-GFP is able to inhibit the growth of malignant cells with the MDR phenotype and tumour metastasis when administered in the early stages of tumour development. Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-1002-x) contains supplementary material, which is available to authorized users.
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19
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Abstract
Oncolytic viruses (OVs) are being extensively studied for their potential roles in the development of cancer therapy regimens. In addition to their direct lytic effects, OVs can initiate and drive systemic antitumor immunity indirectly via release of tumor antigen, as well as by encoding and delivering immunostimulatory molecules. This combination makes them an effective platform for the development of immunotherapeutic strategies beyond their primary lytic function. Engineering the viruses to also express tumor-associated antigens (TAAs) allows them to simultaneously serve as therapeutic vaccines, targeting and amplifying an immune response to TAAs. Our group and others have shown that vaccinating intratumorally with a poxvirus that encodes TAAs, in addition to immune stimulatory molecules, can modulate the tumor microenvironment, overcome immune inhibitory pathways, and drive both local and systemic tumor specific immune responses.
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20
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Kim Y, Clements DR, Sterea AM, Jang HW, Gujar SA, Lee PWK. Dendritic Cells in Oncolytic Virus-Based Anti-Cancer Therapy. Viruses 2015; 7:6506-25. [PMID: 26690204 PMCID: PMC4690876 DOI: 10.3390/v7122953] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/10/2015] [Accepted: 11/27/2015] [Indexed: 12/12/2022] Open
Abstract
Dendritic cells (DCs) are specialized antigen-presenting cells that have a notable role in the initiation and regulation of innate and adaptive immune responses. In the context of cancer, appropriately activated DCs can induce anti-tumor immunity by activating innate immune cells and tumor-specific lymphocytes that target cancer cells. However, the tumor microenvironment (TME) imposes different mechanisms that facilitate the impairment of DC functions, such as inefficient antigen presentation or polarization into immunosuppressive DCs. These tumor-associated DCs thus fail to initiate tumor-specific immunity, and indirectly support tumor progression. Hence, there is increasing interest in identifying interventions that can overturn DC impairment within the TME. Many reports thus far have studied oncolytic viruses (OVs), viruses that preferentially target and kill cancer cells, for their capacity to enhance DC-mediated anti-tumor effects. Herein, we describe the general characteristics of DCs, focusing on their role in innate and adaptive immunity in the context of the TME. We also examine how DC-OV interaction affects DC recruitment, OV delivery, and anti-tumor immunity activation. Understanding these roles of DCs in the TME and OV infection is critical in devising strategies to further harness the anti-tumor effects of both DCs and OVs, ultimately enhancing the efficacy of OV-based oncotherapy.
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Affiliation(s)
- Youra Kim
- Departments of Pathology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
| | - Derek R Clements
- Departments of Pathology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
| | - Andra M Sterea
- Department of Biology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
| | - Hyun Woo Jang
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
| | - Shashi A Gujar
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
- Department of Strategy and Organizational Performance, IWK Health Centre, Halifax, NS B3K 6R8, Canada.
| | - Patrick W K Lee
- Departments of Pathology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
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21
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Oncolytic vaccinia virus synergizes with irinotecan in colorectal cancer. Mol Oncol 2015; 9:1539-52. [PMID: 26004084 DOI: 10.1016/j.molonc.2015.04.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 04/15/2015] [Accepted: 04/24/2015] [Indexed: 12/17/2022] Open
Abstract
Metastatic colorectal cancer (CRC) is complex clinical challenge for which there are limited treatment options. Chemotherapy with or without surgery provides moderate improvements in overall survival and quality of life; nevertheless the 5-year survival remains below 30%. Oncolytic vaccinia virus (VV) shows strong anti-tumour activity in models of CRC, however transient delays in disease progression are insufficient to lead to long-term survival. Here we examined the efficacy of VV with oxaliplatin or SN-38 (active metabolite of irinotecan) in CRC cell lines in vitro and VV with irinotecan in an orthotopic model of metastatic CRC. Synergistic improvements in in vitro cell killing were observed in multiple cell lines. Combination therapy was well tolerated in tumour-bearing mice and the median survival was significantly increased relative to monotherapy despite a drug-dependent decrease in the mean tumour titer. Increased apoptosis following in vitro and in vivo combination therapy was observed. In vitro cell cycle analysis showed increases in S-phase cells following infection occurred in both infected and uninfected cell populations. This corresponded to a 4-fold greater increase in apoptosis in the uninfected compared to infected cells following combination therapy. Combination treatment strategies are among the best options for patients with advanced cancers. VV is currently under clinical investigation in patients with CRC and the data presented here suggest that its combination with irinotecan may provide benefit to a subset of CRC patients. Further, investigation of this combination is necessary to determine the tumour characteristics responsible for mediating synergy.
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22
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Kochneva G, Zonov E, Grazhdantseva A, Yunusova A, Sibolobova G, Popov E, Taranov O, Netesov S, Chumakov P, Ryabchikova E. Apoptin enhances the oncolytic properties of vaccinia virus and modifies mechanisms of tumor regression. Oncotarget 2014; 5:11269-82. [PMID: 25358248 PMCID: PMC4294355 DOI: 10.18632/oncotarget.2579] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 10/08/2014] [Indexed: 12/26/2022] Open
Abstract
A recombinant vaccinia virus VVdGF-ApoS24/2 expressing apoptin selectively kills human cancer cells in vitro [Kochneva et al., 2013]. We compared the oncolytic activity of this recombinant with that of the parental strain L-IVP using a model of human A431 carcinoma xenografts in nude mice. Single intratumoral injections (2×10^7 PFU/mouse) of the viruses produced a dramatic decrease in tumor volumes, which was higher after injection of apoptin-producing virus. The tumor dried out after the injection of recombinant while injection of L-IVP strain resulted in formation of cavities filled with cell debris and liquid. Both viruses rapidly spread in xenografts and replicate exclusively in tumor cells causing their destruction within 8 days. Both viruses induced insignificant level of apoptosis in tumors. Unlike the previously described nuclear localization of apoptin in cancer cells the apoptin produced by recombinant virus was localized to the cytoplasm. The apoptin did not induce a typical apoptosis, but it rather influenced pathway of cell death and thereby caused tumor shrinkage. The replacement of destroyed cells by filamentous material is the main feature of tumor regression caused by the VVdGF-ApoS24/2 virus. The study points the presence of complicated mechanisms of apoptin effects at the background of vaccinia virus replication.
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Affiliation(s)
- Galina Kochneva
- Novosibirsk State University, Novosibirsk, Russia
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia
| | - Evgeniy Zonov
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
| | | | - Anastasiya Yunusova
- Novosibirsk State University, Novosibirsk, Russia
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
| | - Galina Sibolobova
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia
| | - Evgeniy Popov
- Novosibirsk State University, Novosibirsk, Russia
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia
| | - Oleg Taranov
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia
| | - Sergei Netesov
- Novosibirsk State University, Novosibirsk, Russia
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia
| | - Peter Chumakov
- Novosibirsk State University, Novosibirsk, Russia
- Engelhardt Institute of Molecular Biology, Moscow
| | - Elena Ryabchikova
- Novosibirsk State University, Novosibirsk, Russia
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
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Gujar SA, Lee PWK. Oncolytic virus-mediated reversal of impaired tumor antigen presentation. Front Oncol 2014; 4:77. [PMID: 24782988 PMCID: PMC3989761 DOI: 10.3389/fonc.2014.00077] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Accepted: 03/27/2014] [Indexed: 12/03/2022] Open
Abstract
Anti-tumor immunity can eliminate existing cancer cells and also maintain a constant surveillance against possible relapse. Such an antigen-specific adaptive response begins when tumor-specific T cells become activated. T-cell activation requires two signals on antigen presenting cells (APCs): antigen presentation through major histocombatibility complex (MHC) molecules and co-stimulation. In the absence of one or both these signals, T cells remain inactivated or can even become tolerized. Cancer cells and their associated microenvironment strategically hinder the processing and presentation of tumor antigens and consequently prevent the development of anti-tumor immunity. Many studies, however, demonstrate that interventions that over-turn tumor-associated immune evasion mechanisms can establish anti-tumor immune responses of therapeutic potential. One such intervention is oncolytic virus (OV)-based anti-cancer therapy. Here, we discuss how OV-induced immunological events override tumor-associated antigen presentation impairment and promote appropriate T cell–APC interaction. Detailed understanding of this phenomenon is pivotal for devising the strategies that will enhance the efficacy of OV-based anti-cancer therapy by complementing its inherent oncolytic activities with desired anti-tumor immune responses.
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Affiliation(s)
- Shashi A Gujar
- Department of Microbiology and Immunology, Dalhousie University , Halifax, NS , Canada ; Strategy and Organizational Performance, IWK Health Centre , Halifax, NS , Canada
| | - Patrick W K Lee
- Department of Microbiology and Immunology, Dalhousie University , Halifax, NS , Canada ; Department of Pathology, Dalhousie University , Halifax, NS , Canada
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24
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Whilding LM, Archibald KM, Kulbe H, Balkwill FR, Öberg D, McNeish IA. Vaccinia virus induces programmed necrosis in ovarian cancer cells. Mol Ther 2013; 21:2074-86. [PMID: 23985697 PMCID: PMC3831043 DOI: 10.1038/mt.2013.195] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Accepted: 08/14/2013] [Indexed: 12/13/2022] Open
Abstract
The mechanisms by which oncolytic vaccinia virus induces tumor cell death are poorly understood. We have evaluated cell death pathways following infection of ovarian cancer cells with both wild-type and thymidine kinase-deleted (dTK) Lister strain vaccinia. We show that death does not rely upon classical apoptosis despite the appearances of some limited apoptotic features, including phosphatidylserine externalization and appearance of sub-G1 DNA populations. Vaccinia infection induces marked lipidation of LC3 proteins, but there is no general activation of the autophagic process and cell death does not rely upon autophagy induction. We show that vaccinia induces necrotic morphology on transmission electron microscopy, accompanied by marked by reductions in intracellular adenosine triphosphate, altered mitochondrial metabolism, and release of high mobility group box 1 (HMGB1) protein. This necrotic cell death appears regulated, as infection induces formation of a receptor interacting protein (RIP1)/caspase-8 complex. In addition, pharmacological inhibition of both RIP1 and substrates downstream of RIP1, including MLKL, significantly attenuate cell death. Blockade of TNF-α, however, does not alter virus efficacy, suggesting that necrosis does not result from autocrine cytokine release. Overall, these results show that, in ovarian cancer cells, vaccinia virus causes necrotic cell death that is mediated through a programmed series of events.
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Affiliation(s)
- Lynsey M Whilding
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Kyra M Archibald
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Hagen Kulbe
- Centre for Cancer and Inflammation, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Frances R Balkwill
- Centre for Cancer and Inflammation, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Daniel Öberg
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
- Current address: Department of Medical Biochemistry and Microbiology, The Biomedical Centre, Uppsala University, Uppsala, Sweden
| | - Iain A McNeish
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
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Ottolino-Perry K, Tang N, Head R, Ng C, Arulanandam R, Angarita FA, Acuna SA, Chen Y, Bell J, Dacosta RS, McCart JA. Tumor vascularization is critical for oncolytic vaccinia virus treatment of peritoneal carcinomatosis. Int J Cancer 2013; 134:717-30. [PMID: 23893655 DOI: 10.1002/ijc.28395] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 06/25/2013] [Accepted: 07/09/2013] [Indexed: 01/18/2023]
Abstract
Peritoneal carcinomatosis (PC) represents a significant clinical challenge for which there are few treatment options. Oncolytic viruses are ideal candidates for PC treatment because of their high tumor specificity, excellent safety profile and suitability for peritoneal delivery. Here, we described the use of vvDD-SR-RFP, a recombinant vaccinia virus, in xenograft and syngeneic models of colorectal PC. Colorectal cancer cell lines were highly susceptible to vvDD-SR-RFP replication and cytotoxicity. Intraperitoneal delivery of vvDD-SR-RFP on Day 12 to mice with colorectal carcinomatosis significantly improved survival whereas survival was not improved following virus treatment on Day 8, when tumors were smaller. Immunohistochemistry revealed early tumors had a poorly distributed network of blood vessels and lower proliferation index compared to later tumors. Virus infection was also restricted to tumor rims following Day 8 treatment, whereas it was disseminated in tumors treated on Day 12. Additionally, direct infection of tumor endothelium was observed and virus infection correlated with a loss of endothelial staining and induction of cell death. Our results demonstrate that tumor vasculature has a critical role in virus delivery and tumor response. This will have significant implications in the clinical setting, both in understanding timing of therapies and in designing combination treatment strategies.
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Affiliation(s)
- Kathryn Ottolino-Perry
- Division of Experimental Therapeutics, Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
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26
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Deletion of the viral anti-apoptotic gene F1L in the HIV/AIDS vaccine candidate MVA-C enhances immune responses against HIV-1 antigens. PLoS One 2012; 7:e48524. [PMID: 23119046 PMCID: PMC3485360 DOI: 10.1371/journal.pone.0048524] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 09/26/2012] [Indexed: 01/28/2023] Open
Abstract
Vaccinia virus (VACV) encodes an anti-apoptotic Bcl-2-like protein F1 that acts as an inhibitor of caspase-9 and of the Bak/Bax checkpoint but the role of this gene in immune responses is not known. Because dendritic cells that have phagocytosed apoptotic infected cells cross-present viral antigens to cytotoxic T cells inducing an antigen-specific immunity, we hypothesized that deletion of the viral anti-apoptotic F1L gene might have a profound effect on the capacity of poxvirus vectors to activate specific immune responses to virus-expressed recombinant antigens. This has been tested in a mouse model with an F1L deletion mutant of the HIV/AIDS vaccine candidate MVA-C that expresses Env and Gag-Pol-Nef antigens (MVA-C-ΔF1L). The viral gene F1L is not required for virus replication in cultured cells and its deletion in MVA-C induces extensive apoptosis and expression of immunomodulatory genes in infected cells. Analysis of the immune responses induced in BALB/c mice after DNA prime/MVA boost revealed that, in comparison with parental MVA-C, the mutant MVA-C-ΔF1L improves the magnitude of the HIV-1-specific CD8 T cell adaptive immune responses and impacts on the CD8 T cell memory phase by enhancing the magnitude of the response, reducing the contraction phase and changing the memory differentiation pattern. These findings reveal the immunomodulatory role of F1L and that the loss of this gene is a valid strategy for the optimization of MVA as vaccine vector.
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27
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Tysome JR, Li X, Wang S, Wang P, Gao D, Du P, Chen D, Gangeswaran R, Chard LS, Yuan M, Alusi G, Lemoine NR, Wang Y. A novel therapeutic regimen to eradicate established solid tumors with an effective induction of tumor-specific immunity. Clin Cancer Res 2012; 18:6679-89. [PMID: 23091113 DOI: 10.1158/1078-0432.ccr-12-0979] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
PURPOSE The efficacy of oncolytic viruses depends on multiple actions including direct tumor lysis, modulation of tumor perfusion, and stimulation of tumor-directed immune responses. In this study, we investigated whether a sequential combination of immunologically distinct viruses might enhance antitumor efficacy through the induction of tumor-specific immunity and circumvention or mitigation of antiviral immune responses. EXPERIMENTAL DESIGN The Syrian hamster as an immune-competent model that supports replication of both adenovirus and vaccinia virus was evaluated in vitro and in vivo. The antitumor efficacy of either virus alone or sequential combination of the two viruses was examined in pancreatic and kidney cancer models. The functional mechanism of the regimen developed here was investigated by histopathology, immunohistochemistry staining, CTL assay, and T-cell depletion. RESULTS The Syrian hamster is a suitable model for assessment of oncolytic adenovirus and vaccinia virus. Three low doses of adenovirus followed by three low doses of vaccinia virus resulted in a superior antitumor efficacy to the reverse combination, or six doses of either virus alone, against pancreatic and kidney tumors in Syrian hamsters. A total of 62.5% of animals bearing either tumor type treated with the sequential combination became tumor-free, accompanied by the induction of effective tumor-specific immunity. This enhanced efficacy was ablated by CD3+ T-cell depletion but was not associated with humoral immunity against the viruses. CONCLUSION These findings show that sequential treatment of tumors with oncolytic adenovirus and vaccinia virus is a promising approach for cancer therapy and that T-cell responses play a critical role.
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Affiliation(s)
- James R Tysome
- Sino-British Research Center for Molecular Oncology, Zhengzhou University, Zhengzhou, China
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28
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Boukhebza H, Bellon N, Limacher JM, Inchauspé G. Therapeutic vaccination to treat chronic infectious diseases: current clinical developments using MVA-based vaccines. Hum Vaccin Immunother 2012; 8:1746-57. [PMID: 22894957 DOI: 10.4161/hv.21689] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A famous milestone in the vaccine field has been the first successful vaccination against smallpox, in 1798, by Edward Jenner. Using the vaccinia cowpox virus, Jenner was able to protect vaccinees from variola or smallpox. The Modified Virus Ankara (MVA) poxvirus strain has been one of the vaccines subsequently developed to prevent smallpox infection and was selected by the US government in their Biodefense strategy. Progress in molecular biology and immunology associated with MVA infection has led to the development of MVA as vaccine platform, both in the field of preventive and therapeutic vaccines. This later class of therapeutics has witnessed growing interest that has translated into an increasing number of vaccine candidates reaching the clinics. Among those, MVA-based therapeutic vaccines have addressed four major chronic infections including viral hepatitis, AIDS, human papillomavirus-linked pathologies and tuberculosis. Clinical trials encompass phase 1 and 2 and have started to show significant results and promises.
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Affiliation(s)
- Houda Boukhebza
- Transgene, Department of Infectious Diseases, Centre d'Infectiologie, Lyon, France
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29
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Schierer S, Hesse A, Knippertz I, Kaempgen E, Baur AS, Schuler G, Steinkasserer A, Nettelbeck DM. Human dendritic cells efficiently phagocytose adenoviral oncolysate but require additional stimulation to mature. Int J Cancer 2011; 130:1682-94. [PMID: 21557217 DOI: 10.1002/ijc.26176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 04/12/2011] [Indexed: 01/12/2023]
Abstract
Oncolytic adenoviruses are emerging agents for treatment of cancer by tumor-restricted virus infection and cell lysis. Clinical trials have shown that oncolytic adenoviruses are well tolerated in patients but also that their antitumor activity needs improvement. A promising strategy toward this end is to trigger systemic and prolonged antitumor immunity by adenoviral oncolysis. Antitumor immune activation depends in large part on antigen presentation and T cell activation by dendritic cells (DCs). Thus, it is likely that the interaction of lysed tumor cells with DCs is a key determinant of such "oncolytic vaccination." Our study reveals that human DCs effectively phagocytose melanoma cells at late stages of oncolytic adenovirus infection, when the cells die showing preferentially features of necrotic cell death. Maturation, migration toward CCL19 and T cell stimulatory capacity of DCs, crucial steps for immune induction, were, however, not induced by phagocytosis of oncolysate, but could be triggered by a cytokine maturation cocktail. Therefore, oncolytic adenoviruses and adenoviral oncolysate did not block DC maturation, which is in contrast to reports for other oncolytic viruses. These results represent a rationale for inserting immunostimulatory genes into oncolytic adenovirus genomes to assure critical DC maturation. Indeed, we report here that adenoviral transduction of melanoma cells with CD40L during oncolysis triggers the maturation of human DCs with T cell stimulatory capacity similar to DCs matured by cytokines. We conclude that triggering and shaping DC-induced antitumor immunity by oncolytic adenoviruses "armed" with immunostimulatory genes holds promise for improving the therapeutic outcome of viral oncolysis in patients.
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Affiliation(s)
- Stephan Schierer
- Department of Dermatology, University Hospital Erlangen, Erlangen, Germany
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30
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Flechsig C, Suezer Y, Kapp M, Tan SM, Löffler J, Sutter G, Einsele H, Grigoleit GU. Uptake of antigens from modified vaccinia Ankara virus-infected leukocytes enhances the immunostimulatory capacity of dendritic cells. Cytotherapy 2011; 13:739-52. [DOI: 10.3109/14653249.2010.549123] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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31
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Climent N, Guerra S, García F, Rovira C, Miralles L, Gómez CE, Piqué N, Gil C, Gatell JM, Esteban M, Gallart T. Dendritic cells exposed to MVA-based HIV-1 vaccine induce highly functional HIV-1-specific CD8(+) T cell responses in HIV-1-infected individuals. PLoS One 2011; 6:e19644. [PMID: 21625608 PMCID: PMC3097254 DOI: 10.1371/journal.pone.0019644] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 04/06/2011] [Indexed: 01/04/2023] Open
Abstract
Currently, MVA virus vectors carrying HIV-1 genes are being developed as HIV-1/AIDS prophylactic/therapeutic vaccines. Nevertheless, little is known about the impact of these vectors on human dendritic cells (DC) and their capacity to present HIV-1 antigens to human HIV-specific T cells. This study aimed to characterize the interaction of MVA and MVA expressing the HIV-1 genes Env-Gag-Pol-Nef of clade B (referred to as MVA-B) in human monocyte-derived dendritic cells (MDDC) and the subsequent processes of HIV-1 antigen presentation and activation of memory HIV-1-specific T lymphocytes. For these purposes, we performed ex vivo assays with MDDC and autologous lymphocytes from asymptomatic HIV-infected patients. Infection of MDDC with MVA-B or MVA, at the optimal dose of 0.3 PFU/MDDC, induced by itself a moderate degree of maturation of MDDC, involving secretion of cytokines and chemokines (IL1-ra, IL-7, TNF-α, IL-6, IL-12, IL-15, IL-8, MCP-1, MIP-1α, MIP-1β, RANTES, IP-10, MIG, and IFN-α). MDDC infected with MVA or MVA-B and following a period of 48 h or 72 h of maturation were able to migrate toward CCL19 or CCL21 chemokine gradients. MVA-B infection induced apoptosis of the infected cells and the resulting apoptotic bodies were engulfed by the uninfected MDDC, which cross-presented HIV-1 antigens to autologous CD8+ T lymphocytes. MVA-B-infected MDDC co-cultured with autologous T lymphocytes induced a highly functional HIV-specific CD8+ T cell response including proliferation, secretion of IFN-γ, IL-2, TNF-α, MIP-1β, MIP-1α, RANTES and IL-6, and strong cytotoxic activity against autologous HIV-1-infected CD4+ T lymphocytes. These results evidence the adjuvant role of the vector itself (MVA) and support the clinical development of prophylactic and therapeutic anti-HIV vaccines based on MVA-B.
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Affiliation(s)
- Núria Climent
- Service of Immunology, Hospital Clínic de Barcelona, Barcelona, Spain.
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32
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Naik JD, Twelves CJ, Selby PJ, Vile RG, Chester JD. Immune recruitment and therapeutic synergy: keys to optimizing oncolytic viral therapy? Clin Cancer Res 2011; 17:4214-24. [PMID: 21576084 DOI: 10.1158/1078-0432.ccr-10-2848] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Oncolytic viruses consist of a diverse range of DNA and RNA viruses traditionally thought to mediate their effects by exploiting aberrations in tumor pathways, allowing preferential viral replication in, and killing of, tumor cells. Clinical development has progressed to late-phase trials, potentially heralding their introduction into clinical practice. However, despite this promise, the activity of oncolytic viruses has yet to achieve the potential suggested in preclinical models. To address this disparity, we need to recognize the complex interaction among oncolytic viruses, tumor, chemotherapy, and host immune system, and appreciate that direct oncolysis may not be the only factor to play an important role in oncolytic virus-mediated antitumor efficacy. Although key in inactivating viruses, the host immune system can also act as an ally against tumors, interacting with oncolytic viruses under the right conditions to generate useful and long-lasting antitumor immunity. Preclinical data also suggest that oncolytic viruses show synergy with standard therapies, which may offer improved clinical response rates. Here, we explore clinical and preclinical data on clinically relevant oncolytic viruses, highlighting areas of progress, uncertainty, and translational opportunity, with respect to immune recruitment and therapeutic synergy.
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Affiliation(s)
- Jay D Naik
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, UK.
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33
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Preclinical studies of a modified vaccinia virus Ankara-based HIV candidate vaccine: antigen presentation and antiviral effect. J Virol 2010; 84:5314-28. [PMID: 20219934 DOI: 10.1128/jvi.02329-09] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Poxvirus-based human immunodeficiency virus (HIV) vaccine candidates are currently under evaluation in preclinical and clinical trials. Modified vaccinia virus Ankara (MVA) vectors have excellent safety and immunogenicity records, but their behavior in human cell cultures remains only partly characterized. We studied here various virological and immunological aspects of the interactions of MVA-HIV, a vaccine candidate developed by the French National Agency for AIDS Research (ANRS), with primary human cells. We report that MVA-HIV infects and drives Gag expression in primary macrophages, dendritic cells (DCs), and epithelial and muscle cells. MVA-HIV-infected DCs matured, efficiently presented Gag, Pol, and Nef antigens, and activated HIV-specific cytotoxic T lymphocytes (CTLs). As expected with this type of vector, infection was cytopathic and led to DC apoptosis. Coculture of MVA-HIV-infected epithelial cells or myotubes with DCs promoted efficient Gag antigen major histocompatibility complex class I (MHC-I) cross-presentation without inducing direct infection and death of DCs. Antigen-presenting cells (APCs) infected with MVA-HIV also activated HIV-specific CD4(+) T cells. Moreover, exposure of DCs to MVA-HIV or to MVA-HIV-infected myotubes induced type I interferon (IFN) production and inhibited subsequent HIV replication and transfer to lymphocytes. Altogether, these results show that MVA-HIV promotes efficient MHC-I and MHC-II presentation of HIV antigens by APCs without facilitating HIV replication. Deciphering the immune responses to MVA in culture experiments will help in the design of innovative vaccine strategies.
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34
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Jackaman C, Nelson DJ. Cytokine-armed vaccinia virus infects the mesothelioma tumor microenvironment to overcome immune tolerance and mediate tumor resolution. Cancer Gene Ther 2010; 17:429-40. [PMID: 20150930 DOI: 10.1038/cgt.2009.85] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Intratumoral (i.t.) administration of cytokine genes expressed by viral vectors represents a rational approach that induces cytokine secretion at the site they are needed, and i.t. vaccinia virus (VV) has shown promise in mesothelioma patients. However, we and others have shown that the mesothelioma tumor microenvironment includes macrophages, dendritic cells (DCs), and T cells. Therefore, we investigated which of these cell types are infected after exposure to VV or Fowlpox virus (FPV)-cytokine gene constructs. In vitro studies showed that mesothelioma tumor cells were resistant to FPV infection yet highly permissive to infection by VV vectors resulting in significant cytokine production and impaired proliferation. Macrophages secreted low levels of cytokine suggestive of resistance to overt infection. DCs transiently secreted virally derived cytokines, but did not mature during VV infection. VV inhibition of T cell proliferation was rescued by the interleukin (IL)-2 and IL-12 VV constructs. In vivo studies of murine mesotheliomas showed that i.t. injection of the parent VV could not hinder tumor progression. In contrast, the VV-cytokine constructs induced profound tumor regression. These data suggest that i.t. VV-cytokine gene constructs retard tumor growth by infecting mesothelioma cells and targeting the immune system through tumor-infiltrating DC and T cells.
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Affiliation(s)
- C Jackaman
- Curtin University, School of Biomedical Sciences, Bentley, Perth, Western Australia, Australia
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35
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Comparative analysis of MVA-CD40L and MVA-TRICOM vectors for enhancing the immunogenicity of chronic lymphocytic leukemia (CLL) cells. Leuk Res 2010; 34:1351-7. [PMID: 20122733 DOI: 10.1016/j.leukres.2009.12.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Revised: 12/14/2009] [Accepted: 12/19/2009] [Indexed: 11/21/2022]
Abstract
Adenoviral transduction with CD40L and poxviral transduction with B7-1, ICAM-1, and LFA-3 (TRICOM) have been used to enhance the antigen-presenting capacity of chronic lymphocytic leukemia (CLL) cells. This study compares the same vector (modified vaccinia virus strain Ankara (MVA)) encoding CD40L or TRICOM for its ability to enhance the immunogenicity of CLL cells. CLL cells from some patients showed differential responses to each vector in terms of induction of autologous T-cell responses. This study supports the rationale for the use of CLL cells modified ex vivo with pre-specified recombinant MVA vectors as a whole tumor-cell vaccine for immunotherapy in CLL patients.
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36
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Li Y, Mizokami A, Izumi K, Narimoto K, Shima T, Zhang J, Dai J, Keller ET, Namiki M. CTEN/tensin 4 expression induces sensitivity to paclitaxel in prostate cancer. Prostate 2010; 70:48-60. [PMID: 19725034 DOI: 10.1002/pros.21037] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Recently, we established paclitaxel-resistant prostate cancer cell lines (PC-3-TxR and DU145-TxR). To determine the mechanisms of paclitaxel resistance in PC-3-TxR cells, we compared the gene expression profiles between PC-3 and PC-3-TxR cells. Our results indicated that expression of the C-terminal tensin like protein (CTEN, tensin 4) gene was down-regulated by 10-fold in PC-3-TxR cells. We investigated the possibility that CTEN overexpression restores paclitaxel sensitivity. METHODS We investigated how knockdown and overexpression of CTEN in androgen-independent cell lines affect paclitaxel sensitivity by colony formation assay and growth inhibition assay. To determine the mechanisms by which CTEN affects paclitaxel sensitivity, we investigated the relationships between CTEN and F-actin or epidermal growth factor receptor (EGFR) in PC-3 cells. We also examined the association between expression of CTEN and grade of prostate cancer by immunohistochemistry using tissue microarray analysis. RESULTS Down-regulation of CTEN, which is located in the cytoskeleton, played an important role in paclitaxel resistance in PC-3-TxR cells. Knockdown of CTEN expression in PC-3 cells induced paclitaxel resistance. Overexpression of CTEN in PC-3-TxR and DU145-TxR cells restored paclitaxel sensitivity. CTEN expression was inversely correlated with F-actin and EGFR expression. Then knockdown of actin and EGFR in PC-3-TxR cells recovered paclitaxel sensitivity, indicating that CTEN down-regulation mediates paclitaxel resistance through elevation of EGFR and actin expression. Moreover, CTEN expression was inversely correlated with Gleason score. CONCLUSIONS These results strongly suggested that CTEN plays an important role in paclitaxel sensitivity and that CTEN expression level may be a prognostic predictive factor for PCa patients.
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Affiliation(s)
- YouQiang Li
- Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
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37
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Sachet M, Friedl J, Hassler M, Ploder M, Stary G, Stift A, Bergmann M. Improvement of a dendritic cell-based tumour vaccine by an influenza virus. Eur J Clin Invest 2009; 39:1000-9. [PMID: 19807781 DOI: 10.1111/j.1365-2362.2009.02210.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Induction of cytotoxic T cells by dendritic cells (DCs) is a promising approach to tumour-immunotherapy. A standardized effective preparation of DCs remains a challenge for clinical application. MATERIAL AND METHODS We assessed whether influenza A partial NS1 deletion (NS1-124) - or complete NS1 deletion (delNS1) vaccine viruses can be employed to enhance monocyte-derived dendritic cell (MODC)-based T-cell stimulation directed against malignant cells in vitro. RESULTS Infection of cultures containing human MODCs and CD3(+) T cells with NS1 deletion viruses led to an increased induction of type I interferons and IL-6 compared with infection with wild-type virus. This correlated with the fact that infection of MODCs with NS1 deletion viruses but not with wild type virus led to stimulation of a cytotoxic T-cell (CTL) response against the Panc-1 cells, which were used as cell lysate to prime the MODCs. Moreover, stimulation of MODCs with Panc-1 tumour cell lysate obtained via lysis with the complete deletion virus delNS1, but not with the partial NS1 deletion virus also enhanced the CTL response against the tumour cells. Induction of function CTL response in those assays correlated with an increased proliferation of CD8(+) T cells. CONCLUSIONS The pro-inflammatory capacity of influenza NS1 deletion vaccine viruses could serve as an adjuvant-like agent to improve preparations of MODC-based anti-cancer vaccines. The complete NS1 deletion virus appears to be more potent as adjuvant when used for production of tumour lysates.
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Affiliation(s)
- M Sachet
- Medical University of Vienna, 1090 Vienna, Austria
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38
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Prestwich RJ, Errington F, Diaz RM, Pandha HS, Harrington KJ, Melcher AA, Vile RG. The case of oncolytic viruses versus the immune system: waiting on the judgment of Solomon. Hum Gene Ther 2009; 20:1119-32. [PMID: 19630549 PMCID: PMC2829276 DOI: 10.1089/hum.2009.135] [Citation(s) in RCA: 142] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Accepted: 07/24/2009] [Indexed: 02/07/2023] Open
Abstract
The three-way interaction between oncolytic viruses, the tumor microenvironment, and the immune system is critical to the outcome of antitumor therapy. Classically, the immune system is thought to limit the efficacy of therapy, leading to viral clearance. However, preclinical and clinical data suggest that in some cases virotherapy may in fact act as cancer immunotherapy. In this review we discuss the ability of oncolytic viruses to alter the immunogenic milieu of the tumor microenvironment, and the role of innate and adaptive immunity in both restricting and augmenting therapy. Strategies to improve virotherapy by immunomodulation, including suppression or enhancement of the innate and adaptive responses, are discussed.
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Affiliation(s)
- Robin J. Prestwich
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds LS9 7TF, United Kingdom
| | - Fiona Errington
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds LS9 7TF, United Kingdom
| | - Rosa M. Diaz
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55905
- Department of Immunology, Mayo Clinic, Rochester, MN 55905
| | - Hardev S. Pandha
- Postgraduate Medical School, University of Surrey, Guildford GU2 7XX, United Kingdom
| | - Kevin J. Harrington
- Targeted Therapy Laboratory, Institute of Cancer Research, Cancer Research UK, Chester Beatty Laboratories, London SW3 6JB, United Kingdom
| | - Alan A. Melcher
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds LS9 7TF, United Kingdom
| | - Richard G. Vile
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds LS9 7TF, United Kingdom
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55905
- Department of Immunology, Mayo Clinic, Rochester, MN 55905
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Prestwich RJ, Errington F, Steele LP, Ilett EJ, Morgan RSM, Harrington KJ, Pandha HS, Selby PJ, Vile RG, Melcher AA. Reciprocal human dendritic cell-natural killer cell interactions induce antitumor activity following tumor cell infection by oncolytic reovirus. THE JOURNAL OF IMMUNOLOGY 2009; 183:4312-21. [PMID: 19734207 DOI: 10.4049/jimmunol.0901074] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Oncolytic virotherapy may mediate antitumor effects via direct oncolysis or immune-mediated tumor regression. Although the ability of oncolytic viruses to generate adaptive antitumor immunity has been characterized, their interactions with the innate immune system are relatively unclear. Using a human in vitro system, this study investigates the innate immunological consequences of reovirus therapy and its potential to activate NK cell-mediated antitumor activity. Dendritic cells (DC) loaded with reovirus-infected human melanoma Mel888 cells (DC-MelReo), but not reovirus-infected tumor cells alone, induced IFN-gamma production within the NK cell population upon coculture with PBMC, in a cell-to-cell contact-dependent manner. DC-MelReo secreted the chemokines CCL2, 3, 4, 5, 7, 8, 11, and CXCL10; these culture supernatants induced NK cell chemotaxis. Coculture of DC-MelReo with purified NK cells induced reciprocal contact-dependent phenotypic DC maturation, while DC-MelReo elicited up-regulation of the activation marker CD69 on NK cells, in a partially contact and partially IL-12 dependent manner. Significantly, DC-MelReo induced NK cell cytotoxicity toward tumor cells by a type I IFN dependent mechanism. These data demonstrate that tumor infection by reovirus can act via DC to induce NK cell recruitment, activation, and cytotoxicity, along with reciprocal DC maturation. These findings suggest that reciprocal DC-NK cell interactions, following reovirus therapy, may play an important role in altering the immune milieu of the tumor microenvironment and mediating tumor regression.
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Affiliation(s)
- Robin J Prestwich
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
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Prestwich RJ, Ilett EJ, Errington F, Diaz RM, Steele LP, Kottke T, Thompson J, Galivo F, Harrington KJ, Pandha HS, Selby PJ, Vile RG, Melcher AA. Immune-mediated antitumor activity of reovirus is required for therapy and is independent of direct viral oncolysis and replication. Clin Cancer Res 2009; 15:4374-4381. [PMID: 19509134 DOI: 10.1158/1078-0432.ccr-09-0334] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Reovirus is a naturally occurring oncolytic virus in clinical trials. Although tumor infection by reovirus can generate adaptive antitumor immunity, its therapeutic importance versus direct viral oncolysis is undefined. This study addresses the requirement for viral oncolysis and replication, and the relative importance of antitumor immunity and direct oncolysis in therapy. EXPERIMENTAL DESIGN Nonantigen specific T cells loaded with reovirus were delivered i.v. to C57BL/6 and severe combined immunodeficient mice bearing lymph node and splenic metastases from the murine melanoma, B16ova, with assessment of viral replication, metastatic clearance by tumor colony outgrowth, and immune priming. Human cytotoxic lymphocyte priming assays were done with dendritic cells loaded with Mel888 cells before the addition of reovirus. RESULTS B16ova was resistant to direct oncolysis in vitro, and failed to support reovirus replication in vitro or in vivo. Nevertheless, reovirus purged lymph node and splenic metastases in C57BL/6 mice and generated antitumor immunity. In contrast, reovirus failed to reduce tumor burden in severe combined immunodeficient mice bearing either B16ova or reovirus-sensitive B16tk metastases. In the human system, reovirus acted solely as an adjuvant when added to dendritic cells already loaded with Mel888, supporting priming of specific antitumor cytotoxic lymphocyte, in the absence of significant direct tumor oncolysis; UV-treated nonreplicating reovirus was similarly immunogenic. CONCLUSION The immune response is critical in mediating the efficacy of reovirus, and does not depend upon direct viral oncolysis or replication. The findings are of direct relevance to fulfilling the potential of this novel anticancer agent.
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Affiliation(s)
- Robin J Prestwich
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
| | - Elizabeth J Ilett
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
| | - Fiona Errington
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
| | - Rosa M Diaz
- Molecular Medicine Program, Mayo Clinic, Rochester, Minnesota
| | - Lynette P Steele
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
| | - Tim Kottke
- Molecular Medicine Program, Mayo Clinic, Rochester, Minnesota
| | - Jill Thompson
- Molecular Medicine Program, Mayo Clinic, Rochester, Minnesota
| | - Feorillo Galivo
- Molecular Medicine Program, Mayo Clinic, Rochester, Minnesota
| | - Kevin J Harrington
- Targeted Therapy Laboratory, Institute of Cancer Research, Cancer Research UK, Chester Beatty Laboratories, London, United Kingdom
| | - Hardev S Pandha
- Postgraduate Medical School, University of Surrey, Guildford, United Kingdom
| | - Peter J Selby
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
| | - Richard G Vile
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom.,Molecular Medicine Program, Mayo Clinic, Rochester, Minnesota.,Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Alan A Melcher
- Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
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Dobrosavljevic D, Brasanac D, Lukic S, Dzodic R. Molluscum contagiosum arising in melanocytic nevus and in superficial spreading melanoma. J Cutan Pathol 2009; 36:461-3. [PMID: 19278433 DOI: 10.1111/j.1600-0560.2008.01039.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Molluscum contagiosum (MC) is common skin infection caused by molluscum virus. Growth of MC inside melanocytic lesion is extremely rare. We present the case of MC in common melanocytic nevus and the first case of MC in superficial spreading malignant melanoma. Complete destruction of melanocytes and melanoma cells occurred on the site of MC infection. MC virus might be considered as a future candidate for viral oncolysis in cutaneous melanoma patients with advanced disease.
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Affiliation(s)
- Danijela Dobrosavljevic
- Institute of Dermatovenereology, Clinical Centre of Serbia and School of Medicine, University of Belgrade, Belgrade, Serbia.
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Prestwich RJ, Harrington KJ, Pandha HS, Vile RG, Melcher AA, Errington F. Oncolytic viruses: a novel form of immunotherapy. Expert Rev Anticancer Ther 2009; 8:1581-8. [PMID: 18925850 DOI: 10.1586/14737140.8.10.1581] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Oncolytic viruses are novel anticancer agents, currently under investigation in Phase I-III clinical trials. Until recently, most studies have focused on the direct antitumor properties of these viruses, although there is now an increasing body of evidence that the host immune response may be critical to the efficacy of oncolytic virotherapy. This may be mediated via innate immune effectors, adaptive antiviral immune responses eliminating infected cells or adaptive antitumor immune responses. This report summarizes preclinical and clinical evidence for the importance of immune interactions, which may be finely balanced between viral and tumor elimination. On this basis, oncolytic viruses represent a promising novel immunotherapy strategy, which may be optimally combined with existing therapeutic modalities.
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Affiliation(s)
- Robin J Prestwich
- Cancer Research UK Clinical Centre, Leeds Institute of Molecular Medicine, University of Leeds, Leeds, UK.
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Prestwich RJ, Errington F, Ilett EJ, Morgan RSM, Scott KJ, Kottke T, Thompson J, Morrison EE, Harrington KJ, Pandha HS, Selby PJ, Vile RG, Melcher AA. Tumor infection by oncolytic reovirus primes adaptive antitumor immunity. Clin Cancer Res 2009; 14:7358-66. [PMID: 19010851 DOI: 10.1158/1078-0432.ccr-08-0831] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Early clinical trials are under way exploring the direct oncolytic potential of reovirus. This study addresses whether tumor infection by reovirus is also able to generate bystander, adaptive antitumor immunity. EXPERIMENTAL DESIGN Reovirus was delivered intravenously to C57BL/6 mice bearing lymph node metastases from the murine melanoma, B16-tk, with assessment of nodal metastatic clearance, priming of antitumor immunity against the tumor-associated antigen tyrosinase-related protein-2, and cytokine responses. In an in vitro human system, the effect of reovirus infection on the ability of Mel888 melanoma cells to activate and load dendritic cells for cytotoxic lymphocyte (CTL) priming was investigated. RESULTS In the murine model, a single intravenous dose of reovirus reduced metastatic lymph node burden and induced antitumor immunity (splenocyte response to tyrosinase-related protein-2 and interleukin-12 production in disaggregated lymph nodes). In vitro human assays revealed that uninfected Mel888 cells failed to induce dendritic cell maturation or support priming of an anti-Mel888 CTL response. In contrast, reovirus-infected Mel888 cells (reo-Mel) matured dendritic cells in a reovirus dose-dependent manner. When cultured with autologous peripheral blood lymphocytes, dendritic cells loaded with reo-Mel induced lymphocyte expansion, IFN-gamma production, specific anti-Mel888 cell cytotoxicity, and cross-primed CD8+ T cells specific against the human tumor-associated antigen MART-1. CONCLUSION Reovirus infection of tumor cells reduces metastatic disease burden and primes antitumor immunity. Future clinical trials should be designed to explore both direct cytotoxic and immunotherapeutic effects of reovirus.
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Affiliation(s)
- Robin J Prestwich
- Cancer Research UK Clinical Centre, Leeds Institute of Molecular Medicine, University of Leeds, Leeds, United Kingdom
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Use of an oncolytic vaccinia virus for the treatment of canine breast cancer in nude mice: preclinical development of a therapeutic agent. Cancer Gene Ther 2008; 16:320-8. [DOI: 10.1038/cgt.2008.87] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Gauvrit A, Brandler S, Sapede-Peroz C, Boisgerault N, Tangy F, Gregoire M. Measles virus induces oncolysis of mesothelioma cells and allows dendritic cells to cross-prime tumor-specific CD8 response. Cancer Res 2008; 68:4882-92. [PMID: 18559536 DOI: 10.1158/0008-5472.can-07-6265] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite conventional medical and surgical treatments, malignant pleural mesothelioma (MPM) remains incurable. Oncovirotherapy (i.e., the use of replication-competent virus for cancer treatment) is currently explored in clinical trials. In this study, we investigated the antineoplastic potential of a new oncolytic viral agent, a live-attenuated measles virus (MV) strain derived from the Edmonston vaccine lineage (Schwarz strain). We evaluated both oncolytic activity and immunoadjuvant properties of the MV vaccine strain on mesothelioma tumor cells. Infectivity, syncytium formation, and cytolytic activity of MV were studied on a panel of mesothelioma cells derived from pleural effusions of MPM patients. We observed that MV infected preferentially MPM cell lines in comparison with nontransformed mesothelial cells, leading to an efficient killing of a significant fraction of tumor cells. A cytoreductive activity was also evidenced through formation of multinuclear cellular aggregates (syncytia). The susceptibility of MPM cell lines to measles infection was assessed by the analysis of cell surface expression of the MV vaccine receptor (CD46). We also evaluated whether MV infection of mesothelioma cells could elicit an autologous antitumor immune response. We showed that MV Schwarz strain induced apoptotic cell death of infected mesothelioma cells, which were efficiently phagocytosed by dendritic cells (DC). Loading of DCs with MV-infected MPM cells induced DC spontaneous maturation, as evidenced by the increased expression of MHC and costimulatory molecules along with the production of proinflammatory cytokines. Priming of autologous T cells by DCs loaded with MV-infected MPM cells led to a significant proliferation of tumor-specific CD8 T cells. Altogether, these data strongly support the potential of oncolytic MV as an efficient therapeutic agent for mesothelioma cancer.
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Affiliation(s)
- Anne Gauvrit
- INSERM, U601, Cancerology Research Department, Nantes, France
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Prestwich RJ, Harrington KJ, Vile RG, Melcher AA. Immunotherapeutic potential of oncolytic virotherapy. Lancet Oncol 2008; 9:610-2. [PMID: 18598928 DOI: 10.1016/s1470-2045(08)70163-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Errington F, Steele L, Prestwich R, Harrington KJ, Pandha HS, Vidal L, de Bono J, Selby P, Coffey M, Vile R, Melcher A. Reovirus activates human dendritic cells to promote innate antitumor immunity. THE JOURNAL OF IMMUNOLOGY 2008; 180:6018-26. [PMID: 18424722 DOI: 10.4049/jimmunol.180.9.6018] [Citation(s) in RCA: 137] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Oncolytic viruses can exert their antitumor activity via direct oncolysis or activation of antitumor immunity. Although reovirus is currently under clinical investigation for the treatment of localized or disseminated cancer, any potential immune contribution to its efficacy has not been addressed. This is the first study to investigate the ability of reovirus to activate human dendritic cells (DC), key regulators of both innate and adaptive immune responses. Reovirus induced DC maturation and stimulated the production of the proinflammatory cytokines IFN-alpha, TNF-alpha, IL-12p70, and IL-6. Activation of DC by reovirus was not dependent on viral replication, while cytokine production (but not phenotypic maturation) was inhibited by blockade of PKR and NF-kappaB signaling. Upon coculture with autologous NK cells, reovirus-activated DC up-regulated IFN-gamma production and increased NK cytolytic activity. Moreover, short-term coculture of reovirus-activated DC with autologous T cells also enhanced T cell cytokine secretion (IL-2 and IFN-gamma) and induced non-Ag restricted tumor cell killing. These data demonstrate for the first time that reovirus directly activates human DC and that reovirus-activated DC stimulate innate killing by not only NK cells, but also T cells, suggesting a novel potential role for T cells in oncolytic virus-induced local tumor cell death. Hence reovirus recognition by DC may trigger innate effector mechanisms to complement the virus's direct cytotoxicity, potentially enhancing the efficacy of reovirus as a therapeutic agent.
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Affiliation(s)
- Fiona Errington
- Cancer Research U.K., St. James's University Hospital, Beckett Street, Leeds
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Prestwich RJ, Errington F, Harrington KJ, Pandha HS, Selby P, Melcher A. Oncolytic viruses: do they have a role in anti-cancer therapy? Clin Med Oncol 2008; 2:83-96. [PMID: 21892269 PMCID: PMC3161683 DOI: 10.4137/cmo.s416] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Oncolytic viruses are replication competent, tumor selective and lyse cancer cells. Their potential for anti-cancer therapy is based upon the concept that selective intratumoral replication will produce a potent anti-tumor effect and possibly bystander or remote cell killing, whilst minimizing normal tissue toxicity. Viruses may be naturally oncolytic or be engineered for oncolytic activity, and possess a host of different mechanisms to provide tumor selectivity. Clinical use of live replicating viruses is associated with a unique set of safety issues. Clinical experience has so far provided evidence of limited efficacy and a favourable toxicity profile. The interaction with the host immune system is complex. An anti-viral immune response may limit efficacy by rapidly clearing the virus. However, virally-induced cell lysis releases tumor associated antigens in a 'dangerous' context, and limited evidence suggests that this can lead to the generation of a specific anti-tumor immune response. Combination therapy with chemotherapy or radiotherapy represents a promising avenue for ongoing translation of oncolytic viruses into clinical practice. Obstacles to therapy include highly effective non-specific host mechanisms to clear virus following systemic delivery, immune-mediated clearance, and intratumoral barriers limiting virus spread. A number of novel strategies are now under investigation to overcome these barriers. This review provides an overview of the potential role of oncolytic viruses, highlighting recent progress towards developing effective therapy and asks if they are a realistic therapeutic option at this stage.
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Affiliation(s)
- Robin J Prestwich
- Cancer Research UK, St James's University Hospital, Beckett Street, Leeds, LS9 7TF, UK
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