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Vannini A, Parenti F, Barboni C, Forghieri C, Leoni V, Sanapo M, Bressanin D, Zaghini A, Campadelli-Fiume G, Gianni T. Efficacy of Systemically Administered Retargeted Oncolytic Herpes Simplex Viruses-Clearance and Biodistribution in Naïve and HSV-Preimmune Mice. Cancers (Basel) 2023; 15:4042. [PMID: 37627072 PMCID: PMC10452237 DOI: 10.3390/cancers15164042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
We investigated the anticancer efficacy, blood clearance, and tissue biodistribution of systemically administered retargeted oncolytic herpes simplex viruses (ReHVs) in HSV-naïve and HSV-preimmunized (HSV-IMM) mice. Efficacy was tested against lung tumors formed upon intravenous administration of cancer cells, a model of metastatic disease, and against subcutaneous distant tumors. In naïve mice, HER2- and hPSMA-retargeted viruses, both armed with mIL-12, were highly effective, even when administered to mice with well-developed tumors. Efficacy was higher for combination regimens with immune checkpoint inhibitors. A significant amount of infectious virus persisted in the blood for at least 1 h. Viral genomes, or fragments thereof, persisted in the blood and tissues for days. Remarkably, the only sites of viral replication were the lungs of tumor-positive mice and the subcutaneous tumors. No replication was detected in other tissues, strengthening the evidence of the high cancer specificity of ReHVs, a property that renders ReHVs suitable for systemic administration. In HSV-IMM mice, ReHVs administered at late times failed to exert anticancer efficacy, and the circulating virus was rapidly inactivated. Serum stability and in vivo whole blood stability assays highlighted neutralizing antibodies as the main factor in virus inactivation. Efforts to deplete mice of the neutralizing antibodies are ongoing.
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Affiliation(s)
- Andrea Vannini
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Federico Parenti
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
| | - Catia Barboni
- Department of Veterinary Medical Sciences, University of Bologna, 40126 Bologna, Italy; (C.B.); (A.Z.)
| | - Cristina Forghieri
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
| | - Valerio Leoni
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
| | - Mara Sanapo
- Animal Facility Unit, Biogem, 83031 Ariano Irpino, Italy;
| | - Daniela Bressanin
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
| | - Anna Zaghini
- Department of Veterinary Medical Sciences, University of Bologna, 40126 Bologna, Italy; (C.B.); (A.Z.)
| | - Gabriella Campadelli-Fiume
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
| | - Tatiana Gianni
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (C.F.)
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Zhu X, Fan C, Xiong Z, Chen M, Li Z, Tao T, Liu X. Development and application of oncolytic viruses as the nemesis of tumor cells. Front Microbiol 2023; 14:1188526. [PMID: 37440883 PMCID: PMC10335770 DOI: 10.3389/fmicb.2023.1188526] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/18/2023] [Indexed: 07/15/2023] Open
Abstract
Viruses and tumors are two pathologies that negatively impact human health, but what occurs when a virus encounters a tumor? A global consensus among cancer patients suggests that surgical resection, chemotherapy, radiotherapy, and other methods are the primary means to combat cancer. However, with the innovation and development of biomedical technology, tumor biotherapy (immunotherapy, molecular targeted therapy, gene therapy, oncolytic virus therapy, etc.) has emerged as an alternative treatment for malignant tumors. Oncolytic viruses possess numerous anti-tumor properties, such as directly lysing tumor cells, activating anti-tumor immune responses, and improving the tumor microenvironment. Compared to traditional immunotherapy, oncolytic virus therapy offers advantages including high killing efficiency, precise targeting, and minimal side effects. Although oncolytic virus (OV) therapy was introduced as a novel approach to tumor treatment in the 19th century, its efficacy was suboptimal, limiting its widespread application. However, since the U.S. Food and Drug Administration (FDA) approved the first OV therapy drug, T-VEC, in 2015, interest in OV has grown significantly. In recent years, oncolytic virus therapy has shown increasingly promising application prospects and has become a major research focus in the field of cancer treatment. This article reviews the development, classification, and research progress of oncolytic viruses, as well as their mechanisms of action, therapeutic methods, and routes of administration.
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Affiliation(s)
- Xiao Zhu
- Zhejiang Provincial People's Hospital Affiliated to Hangzhou Medical College, Hangzhou Medical College, Hangzhou, China
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
- Department of Biological and Chemical Sciences, New York Institute of Technology—Manhattan Campus, New York, NY, United States
| | - Chenyang Fan
- Department of Clinical Medicine, Medicine and Technology, School of Zunyi Medical University, Zunyi, China
| | - Zhuolong Xiong
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Mingwei Chen
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Zesong Li
- Guangdong Provincial Key Laboratory of Systems Biology and Synthetic Biology for Urogenital Tumors, Shenzhen Key Laboratory of Genitourinary Tumor, Department of Urology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital(Shenzhen Institute of Translational Medicine), Shenzhen, China
| | - Tao Tao
- Department of Gastroenterology, Zibo Central Hospital, Zibo, China
| | - Xiuqing Liu
- Department of Clinical Laboratory, Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, China
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Vannini A, Parenti F, Forghieri C, Barboni C, Zaghini A, Campadelli-Fiume G, Gianni T. Innovative retargeted oncolytic herpesvirus against nectin4-positive cancers. Front Mol Biosci 2023; 10:1149973. [PMID: 37251078 PMCID: PMC10213976 DOI: 10.3389/fmolb.2023.1149973] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023] Open
Abstract
Nectin4 is a recently discovered tumor associated antigen expressed in cancers that constitute relevant unmet clinical needs, including the undruggable triple negative breast cancer, pancreatic ductal carcinoma, bladder/urothelial cancer, cervical cancer, lung carcinoma and melanoma. So far, only one nectin4-specific drug-Enfortumab Vedotin-has been approved and the clinical trials that test novel therapeutics are only five. Here we engineered R-421, an innovative retargeted onco-immunotherapeutic herpesvirus highly specific for nectin4 and unable to infect through the natural herpes receptors, nectin1 or herpesvirus entry mediator. In vitro, R-421 infected and killed human nectin4-positive malignant cells and spared normal cells, e.g., human fibroblasts. Importantly from a safety viewpoint, R-421 failed to infect malignant cells that do not harbor nectin4 gene amplification/overexpression, whose expression level was moderate-to-low. In essence, there was a net threshold value below which cells were spared from infection, irrespective of whether they were malignant or normal; the only cells that R-421 targeted were the malignant overexpressing ones. In vivo, R-421 decreased or abolished the growth of murine tumors made transgenic for human nectin4 and conferred sensitivity to immune checkpoint inhibitors in combination therapies. Its efficacy was augmented by the cyclophosphamide immunomodulator and decreased by depletion of CD8-positive lymphocytes, arguing that it was in part T cell-mediated. R-421 elicited in-situ vaccination that protected from distant challenge tumors. This study provides proof-of-principle specificity and efficacy data justifying nectin4-retargeted onco-immunotherapeutic herpesvirus as an innovative approach against a number of difficult-to-drug clinical indications.
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Affiliation(s)
- Andrea Vannini
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Federico Parenti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Cristina Forghieri
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Catia Barboni
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Anna Zaghini
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | | | - Tatiana Gianni
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
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Malik S, Sah R, Ahsan O, Muhammad K, Waheed Y. Insights into the Novel Therapeutics and Vaccines against Herpes Simplex Virus. Vaccines (Basel) 2023; 11:vaccines11020325. [PMID: 36851203 PMCID: PMC9959597 DOI: 10.3390/vaccines11020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/21/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Herpes simplex virus (HSV) is a great concern of the global health community due to its linked infection of inconspicuous nature and resultant serious medical consequences. Seropositive patients may develop ocular disease or genital herpes as characteristic infectious outcomes. Moreover, the infectious nature of HSV is so complex that the available therapeutic options have been modified in certain ways to cure it. However, no permanent and highly effective cure has been discovered. This review generates insights into the available prophylactic and therapeutic interventions against HSV. A methodological research approach is used for study design and data complication. Only the latest data from publications are acquired to shed light on updated therapeutic approaches. These studies indicate that the current antiviral therapeutics can suppress the symptoms and control viral transmission up to a certain level, but cannot eradicate the natural HSV infection and latency outcomes. Most trials that have entered the clinical phase are made part of this review to understand what is new within the field. Some vaccination approaches are also discussed. Moreover, some novel therapeutic options that are currently in research annals are given due consideration for future development. The data can enable the scientific community to direct their efforts to fill the gaps that remain unfilled in terms of therapies for HSV. The need is to integrate scientific efforts to produce a proper cure against HSV to control the virus spread, resistance, and mutation in future disease management.
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Affiliation(s)
- Shiza Malik
- Bridging Health Foundation, Rawalpindi 46000, Pakistan
| | - Ranjit Sah
- Department of Microbiology, Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu 44600, Nepal
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Center, Dr. D. Y. Patil Vidyapeeth, Pune 411018, Maharashtra, India
| | - Omar Ahsan
- Department of Medicine, School of Health Sciences, Foundation University Islamabad, DHA Phase I, Islamabad 44000, Pakistan
| | - Khalid Muhammad
- Department of Biology, College of Science, UAE University, Al Ain 15551, United Arab Emirates
| | - Yasir Waheed
- Office of Research, Innovation, and Commercialization (ORIC), Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad 44000, Pakistan
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos 1401, Lebanon
- Correspondence:
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Vannini A, Parenti F, Bressanin D, Barboni C, Zaghini A, Campadelli-Fiume G, Gianni T. Towards a Precision Medicine Approach and In Situ Vaccination against Prostate Cancer by PSMA-Retargeted oHSV. Viruses 2021; 13:v13102085. [PMID: 34696515 PMCID: PMC8541339 DOI: 10.3390/v13102085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 11/28/2022] Open
Abstract
Prostate specific membrane antigen (PSMA) is a specific high frequency cell surface marker of prostate cancers. Theranostic approaches targeting PSMA show no major adverse effects and rule out off-tumor toxicity. A PSMA-retargeted oHSV (R-405) was generated which both infected and was cytotoxic exclusively for PSMA-positive cells, including human prostate cancer LNCaP and 22Rv1 cells, and spared PSMA-negative cells. R-405 in vivo efficacy against LLC1-PSMA and Renca-PSMA tumors consisted of inhibiting primary tumor growth, establishing long-term T immune response, immune heating of the microenvironment, de-repression of the anti-tumor immune phenotype, and sensitization to checkpoint blockade. The in situ vaccination protected from distant challenge tumors, both PSMA-positive and PSMA-negative, implying that it was addressed also to LLC1 tumor antigens. PSMA-retargeted oHSVs are a precision medicine tool worth being additionally investigated in the immunotherapeutic and in situ vaccination landscape against prostate cancers.
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Affiliation(s)
- Andrea Vannini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (D.B.)
| | - Federico Parenti
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (D.B.)
| | - Daniela Bressanin
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (D.B.)
| | - Catia Barboni
- Department of Veterinary Medical Sciences, University of Bologna, 40126 Bologna, Italy; (C.B.); (A.Z.)
| | - Anna Zaghini
- Department of Veterinary Medical Sciences, University of Bologna, 40126 Bologna, Italy; (C.B.); (A.Z.)
| | - Gabriella Campadelli-Fiume
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (D.B.)
- Correspondence: (G.C.-F.); (T.G.); Tel.: +39-0512094733 (G.C.-F.); +39-0512094750 (T.G.)
| | - Tatiana Gianni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (A.V.); (F.P.); (D.B.)
- Correspondence: (G.C.-F.); (T.G.); Tel.: +39-0512094733 (G.C.-F.); +39-0512094750 (T.G.)
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6
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Genotype of Immunologically Hot or Cold Tumors Determines the Antitumor Immune Response and Efficacy by Fully Virulent Retargeted oHSV. Viruses 2021; 13:v13091747. [PMID: 34578328 PMCID: PMC8473155 DOI: 10.3390/v13091747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/19/2021] [Accepted: 08/27/2021] [Indexed: 01/23/2023] Open
Abstract
We report on the efficacy of the non-attenuated HER2-retargeted oHSV named R-337 against the immunologically hot CT26-HER2 tumor, and an insight into the basis of the immune protection. Preliminarily, we conducted an RNA immune profiling and immune cell content characterization of CT26-HER2 tumor in comparison to the immunologically cold LLC1-HER2 tumor. CT26-HER2 tumor was implanted into HER2-transgenic BALB/c mice. Hallmarks of R-337 effects were the protection from primary tumor, long-term adaptive vaccination directed to both HER2 and CT26-wt cell neoantigens. The latter effect differentiated R-337 from OncoVEXGM-CSF. As to the basis of the immune protection, R-337 orchestrated several changes to the tumor immune profile, which cumulatively reversed the immunosuppression typical of this tumor (graphical abstract). Thus, Ido1 (inhibitor of T cell anticancer immunity) levels and T regulatory cell infiltration were decreased; Cd40 and Cd27 co-immunostimulatory markers were increased; the IFNγ cascade was activated. Of note was the dampening of IFN-I response, which we attribute to the fact that R-337 is fully equipped with genes that contrast the host innate response. The IFN-I shut-down likely favored viral replication and the expression of the mIL-12 payload, which, in turn, boosted the antitumor response. The results call for a characterization of tumor immune markers to employ oncolytic herpesviruses more precisely.
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Appolloni I, Alessandrini F, Menotti L, Avitabile E, Marubbi D, Piga N, Ceresa D, Piaggio F, Campadelli-Fiume G, Malatesta P. Specificity, Safety, Efficacy of EGFRvIII-Retargeted Oncolytic HSV for Xenotransplanted Human Glioblastoma. Viruses 2021; 13:1677. [PMID: 34578259 PMCID: PMC8473268 DOI: 10.3390/v13091677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/04/2021] [Accepted: 08/16/2021] [Indexed: 11/27/2022] Open
Abstract
Glioblastoma is a lethal primary brain tumor lacking effective therapy. The secluded onset site, combined with the infiltrative properties of this tumor, require novel targeted therapies. In this scenario, the use of oncolytic viruses retargeted to glioblastoma cells and able to spread across the tumor cells represent an intriguing treatment strategy. Here, we tested the specificity, safety and efficacy of R-613, the first oncolytic HSV fully retargeted to EGFRvIII, a variant of the epidermal growth factor receptor carrying a mutation typically found in glioblastoma. An early treatment with R-613 on orthotopically transplanted EGFRvIII-expressing human glioblastoma significantly increased the median survival time of mice. In this setting, the growth of human glioblastoma xenotransplants was monitored by a secreted luciferase reporter and showed that R-613 is able to substantially delay the development of the tumor masses. When administered as late treatment to a well-established glioblastomas, R-613 appeared to be less effective. Notably the uninfected tumor cells derived from the explanted tumor masses were still susceptible to R-613 infection ex vivo, thus suggesting that multiple treatments could enhance R-613 therapeutic efficacy, making R-613 a promising oncolytic HSV candidate for glioblastoma treatment.
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Affiliation(s)
- Irene Appolloni
- Department of Experimental Medicine (DIMES), University of Genova, 16132 Genova, Italy; (I.A.); (D.M.); (N.P.); (F.P.)
| | | | - Laura Menotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy; (L.M.); (E.A.)
| | - Elisa Avitabile
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy; (L.M.); (E.A.)
| | - Daniela Marubbi
- Department of Experimental Medicine (DIMES), University of Genova, 16132 Genova, Italy; (I.A.); (D.M.); (N.P.); (F.P.)
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (F.A.); (D.C.)
| | - Noemi Piga
- Department of Experimental Medicine (DIMES), University of Genova, 16132 Genova, Italy; (I.A.); (D.M.); (N.P.); (F.P.)
| | - Davide Ceresa
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (F.A.); (D.C.)
| | - Francesca Piaggio
- Department of Experimental Medicine (DIMES), University of Genova, 16132 Genova, Italy; (I.A.); (D.M.); (N.P.); (F.P.)
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (F.A.); (D.C.)
| | - Gabriella Campadelli-Fiume
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy;
| | - Paolo Malatesta
- Department of Experimental Medicine (DIMES), University of Genova, 16132 Genova, Italy; (I.A.); (D.M.); (N.P.); (F.P.)
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (F.A.); (D.C.)
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Dailey KM, Allgood JE, Johnson PR, Ostlie MA, Schaner KC, Brooks BD, Brooks AE. The next frontier of oncotherapy: accomplishing clinical translation of oncolytic bacteria through genetic engineering. Future Microbiol 2021; 16:341-368. [PMID: 33754804 DOI: 10.2217/fmb-2020-0245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The development of a 'smart' drug capable of distinguishing tumor from host cells has been sought for centuries, but the microenvironment of solid tumors continues to confound therapeutics. Solid tumors present several challenges for current oncotherapeutics, including aberrant vascularization, hypoxia, necrosis, abnormally high pH and local immune suppression. While traditional chemotherapeutics are limited by such an environment, oncolytic microbes are drawn to it - having an innate ability to selectively infect, colonize and eradicate solid tumors. Development of an oncolytic species would represent a shift in the cancer therapeutic paradigm, with ramifications reaching from the medical into the socio-economic. Modern genetic engineering techniques could be implemented to customize 'Frankenstein' bacteria with advantageous characteristics from several species.
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Affiliation(s)
- Kaitlin M Dailey
- Cellular & Molecular Biology Program, North Dakota State University, Fargo, ND 58103, USA.,Pharmaceutical Sciences Department, North Dakota State University, Fargo, ND 58103, USA
| | - JuliAnne E Allgood
- Department of Neuroscience, University of Wyoming, Laramie, WY 82071, USA
| | - Paige R Johnson
- Pharmaceutical Sciences Department, North Dakota State University, Fargo, ND 58103, USA
| | - Mackenzie A Ostlie
- Pharmaceutical Sciences Department, North Dakota State University, Fargo, ND 58103, USA
| | - Kambri C Schaner
- Pharmaceutical Sciences Department, North Dakota State University, Fargo, ND 58103, USA
| | | | - Amanda E Brooks
- Cellular & Molecular Biology Program, North Dakota State University, Fargo, ND 58103, USA.,Pharmaceutical Sciences Department, North Dakota State University, Fargo, ND 58103, USA.,Office of Research & Scholarly Activity. Rocky Vista University, Ivins, UT 84738, USA
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9
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He G, Ding J, Zhang Y, Cai M, Yang J, Cho WC, Zheng Y. microRNA-21: a key modulator in oncogenic viral infections. RNA Biol 2021; 18:809-817. [PMID: 33499700 DOI: 10.1080/15476286.2021.1880756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Oncogenic viruses are associated with approximately 15% of human cancers. In viral infections, microRNAs play an important role in host-pathogen interactions. miR-21 is a highly conserved non-coding RNA that not only regulates the development of oncogenic viral diseases, but also responds to the regulation of intracellular signal pathways. Oncogenic viruses, including HBV, HCV, HPV, and EBV, co-evolve with their hosts and cause persistent infections. The upregulation of host miR-21 manipulates key cellular pathways to evade host immune responses and then promote viral replication. Thus, a better understanding of the role of miR-21 in viral infections may help us to develop effective genetically-engineered oncolytic virus-based therapies against cancer.
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Affiliation(s)
- Guitian He
- State Key Laboratory of Veterinary Etiological Biology' and 'Key Laboratory of Veterinary Parasitology of Gansu Province, CAAS, Lanzhou, China
| | - Juntao Ding
- College of Life Science and Technology, College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Yong'e Zhang
- State Key Laboratory of Veterinary Etiological Biology' and 'Key Laboratory of Veterinary Parasitology of Gansu Province, CAAS, Lanzhou, China
| | - Mengting Cai
- State Key Laboratory of Veterinary Etiological Biology' and 'Key Laboratory of Veterinary Parasitology of Gansu Province, CAAS, Lanzhou, China
| | - Jing Yang
- State Key Laboratory of Veterinary Etiological Biology' and 'Key Laboratory of Veterinary Parasitology of Gansu Province, CAAS, Lanzhou, China
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, China
| | - Yadong Zheng
- State Key Laboratory of Veterinary Etiological Biology' and 'Key Laboratory of Veterinary Parasitology of Gansu Province, CAAS, Lanzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou China
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10
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Cheng AZ, Moraes SN, Shaban NM, Fanunza E, Bierle CJ, Southern PJ, Bresnahan WA, Rice SA, Harris RS. APOBECs and Herpesviruses. Viruses 2021; 13:v13030390. [PMID: 33671095 PMCID: PMC7998176 DOI: 10.3390/v13030390] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 12/14/2022] Open
Abstract
The apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like (APOBEC) family of DNA cytosine deaminases provides a broad and overlapping defense against viral infections. Successful viral pathogens, by definition, have evolved strategies to escape restriction by the APOBEC enzymes of their hosts. HIV-1 and related retroviruses are thought to be the predominant natural substrates of APOBEC enzymes due to obligate single-stranded (ss)DNA replication intermediates, abundant evidence for cDNA strand C-to-U editing (genomic strand G-to-A hypermutation), and a potent APOBEC degradation mechanism. In contrast, much lower mutation rates are observed in double-stranded DNA herpesviruses and the evidence for APOBEC mutation has been less compelling. However, recent work has revealed that Epstein-Barr virus (EBV), Kaposi’s sarcoma-associated herpesvirus (KSHV), and herpes simplex virus-1 (HSV-1) are potential substrates for cellular APOBEC enzymes. To prevent APOBEC-mediated restriction these viruses have repurposed their ribonucleotide reductase (RNR) large subunits to directly bind, inhibit, and relocalize at least two distinct APOBEC enzymes—APOBEC3B and APOBEC3A. The importance of this interaction is evidenced by genetic inactivation of the EBV RNR (BORF2), which results in lower viral infectivity and higher levels of C/G-to-T/A hypermutation. This RNR-mediated mechanism therefore likely functions to protect lytic phase viral DNA replication intermediates from APOBEC-catalyzed DNA C-to-U deamination. The RNR-APOBEC interaction defines a new pathogen-host conflict that the virus must win in real-time for transmission and pathogenesis. However, partial losses over evolutionary time may also benefit the virus by providing mutational fuel for adaptation.
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Affiliation(s)
- Adam Z. Cheng
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; (S.N.M.); (N.M.S.); (E.F.)
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Center for Genome Engineering, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: (A.Z.C.); (R.S.H.)
| | - Sofia N. Moraes
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; (S.N.M.); (N.M.S.); (E.F.)
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Center for Genome Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Nadine M. Shaban
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; (S.N.M.); (N.M.S.); (E.F.)
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Center for Genome Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Elisa Fanunza
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; (S.N.M.); (N.M.S.); (E.F.)
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Center for Genome Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Craig J. Bierle
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Peter J. Southern
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Wade A. Bresnahan
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Stephen A. Rice
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Reuben S. Harris
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; (S.N.M.); (N.M.S.); (E.F.)
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN 55455, USA; (C.J.B.); (P.J.S.); (W.A.B.); (S.A.R.)
- Center for Genome Engineering, University of Minnesota, Minneapolis, MN 55455, USA
- Howard Hughes Medical Institute, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: (A.Z.C.); (R.S.H.)
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11
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Dogrammatzis C, Waisner H, Kalamvoki M. "Non-Essential" Proteins of HSV-1 with Essential Roles In Vivo: A Comprehensive Review. Viruses 2020; 13:E17. [PMID: 33374862 PMCID: PMC7824580 DOI: 10.3390/v13010017] [Citation(s) in RCA: 11] [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: 11/24/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 12/19/2022] Open
Abstract
Viruses encode for structural proteins that participate in virion formation and include capsid and envelope proteins. In addition, viruses encode for an array of non-structural accessory proteins important for replication, spread, and immune evasion in the host and are often linked to virus pathogenesis. Most virus accessory proteins are non-essential for growth in cell culture because of the simplicity of the infection barriers or because they have roles only during a state of the infection that does not exist in cell cultures (i.e., tissue-specific functions), or finally because host factors in cell culture can complement their absence. For these reasons, the study of most nonessential viral factors is more complex and requires development of suitable cell culture systems and in vivo models. Approximately half of the proteins encoded by the herpes simplex virus 1 (HSV-1) genome have been classified as non-essential. These proteins have essential roles in vivo in counteracting antiviral responses, facilitating the spread of the virus from the sites of initial infection to the peripheral nervous system, where it establishes lifelong reservoirs, virus pathogenesis, and other regulatory roles during infection. Understanding the functions of the non-essential proteins of herpesviruses is important to understand mechanisms of viral pathogenesis but also to harness properties of these viruses for therapeutic purposes. Here, we have provided a comprehensive summary of the functions of HSV-1 non-essential proteins.
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Affiliation(s)
| | | | - Maria Kalamvoki
- Department of Microbiology, Molecular Genetics, and Immunology, University of Kansas Medical Center, Kansas City, KS 66160, USA; (C.D.); (H.W.)
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12
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Abstract
Since the cloning of the herpes simplex virus (HSV) genome as BAC (bacterial artificial chromosome), the genetic engineering of the viral genome has become readily feasible. The advantage is that the modification of the animal virus genome is carried out in bacteria, with no replication or production of viral progeny, and is separated from the reconstitution or regeneration of the recombinant virus in mammalian cells. This allows an easy engineering of essential genes, as well. Many technologies have been developed for herpesvirus BAC engineering. In our hands the most powerful is galK recombineering that exploits a single marker (galK) for positive and negative selection and PCR amplicons for seamless modification in the desired genome locus. Here we describe the engineering of the HSV recombinant BAC 115 by the insertion of a heterologous cassette for the expression of murine interleukin 12 (mIL12) in the intergenic sequence between US1 and US2 ORFs.
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13
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Precision Approaches in the Management of Colorectal Cancer: Current Evidence and Latest Advancements Towards Individualizing the Treatment. Cancers (Basel) 2020; 12:cancers12113481. [PMID: 33238500 PMCID: PMC7700522 DOI: 10.3390/cancers12113481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/11/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
The genetic and molecular underpinnings of metastatic colorectal cancer have been studied for decades, and the applicability of these findings in clinical decision making continues to evolve. Advancements in translating molecular studies have provided a basis for tailoring chemotherapeutic regimens in metastatic colorectal cancer (mCRC) treatment, which have informed multiple practice guidelines. Various genetic and molecular pathways have been identified as clinically significant in the pathogenesis of metastatic colorectal cancer. These include rat sarcoma (RAS), epithelial growth factor receptor (EGFR), vascular endothelial growth factor VEGF, microsatellite instability, mismatch repair, and v-raf murine sarcoma viral oncogene homolog b1 (BRAF) with established clinical implications. RAS mutations and deficiencies in the mismatch repair pathway guide decisions regarding the administration of anti-EGFR-based therapies and immunotherapy, respectively. Furthermore, there are several emerging pathways and therapeutic modalities that have not entered mainstream use in mCRC treatment and are ripe for further investigation. The well-established data in the arena of targeted therapies provide evidence-based support for the use or avoidance of various therapeutic regimens in mCRC treatment, while the emerging pathways and platforms offer a glimpse into the future of transforming a precision approach into a personalized treatment.
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14
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Menotti L, Avitabile E. Herpes Simplex Virus Oncolytic Immunovirotherapy: The Blossoming Branch of Multimodal Therapy. Int J Mol Sci 2020; 21:ijms21218310. [PMID: 33167582 PMCID: PMC7664223 DOI: 10.3390/ijms21218310] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 02/06/2023] Open
Abstract
Oncolytic viruses are smart therapeutics against cancer due to their potential to replicate and produce the needed therapeutic dose in the tumor, and to their ability to self-exhaust upon tumor clearance. Oncolytic virotherapy strategies based on the herpes simplex virus are reaching their thirties, and a wide variety of approaches has been envisioned and tested in many different models, and on a range of tumor targets. This huge effort has culminated in the primacy of an oncolytic HSV (oHSV) being the first oncolytic virus to be approved by the FDA and EMA for clinical use, for the treatment of advanced melanoma. The path has just been opened; many more cancer types with poor prognosis await effective and innovative therapies, and oHSVs could provide a promising solution, especially as combination therapies and immunovirotherapies. In this review, we analyze the most recent advances in this field, and try to envision the future ahead of oHSVs.
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15
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Shi F, Xin VW, Liu XQ, Wang YY, Zhang Y, Cheng JT, Cai WQ, Xiang Y, Peng XC, Wang X, Xin HW. Identification of 22 Novel Motifs of the Cell Entry Fusion Glycoprotein B of Oncolytic Herpes Simplex Viruses: Sequence Analysis and Literature Review. Front Oncol 2020; 10:1386. [PMID: 32974139 PMCID: PMC7466406 DOI: 10.3389/fonc.2020.01386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 06/30/2020] [Indexed: 12/27/2022] Open
Abstract
Objective: Herpes simplex viruses (HSVs) are widely spread throughout the world, causing infections from oral, and genital mucous membrane ulcerations to severe viral encephalitis. Glycoprotein B (gB) was the first HSV envelope glycoprotein identified to induce cell fusion. This glycoprotein initiates viral entry and thereby determines the infectivity of HSV, as well as oncolytic HSV (oHSV). Clarifying its molecular characterization and enlarging its motif reservoir will help to engineer oHSV and in cancer treatment applications. Only in recent years has the importance of gB been acknowledged in HSV infection and oHSV engineering. Although gB-modified oHSVs have been developed, the detailed molecular biology of gB needs to be illustrated more clearly in order to construct more effective oHSVs. Method: Here, we performed a systematic comparative sequence analysis of gBs from the 9 HSV-1 and 2 HSV-2 strains, including HSV-1-LXMW, which was isolated by our lab. Online software was implemented to predict gB secondary structure and motifs. Based on extensive literature reviews, a functional analysis of the predicted motifs was performed. Results: Here, we reported the DNA and predicted amino acid sequences of our recently isolated HSV-1-LXMW and found that the strain was evolutionarily close to HSV-1 strains F, H129, and SC16 based on gB analysis. The 22 novel motifs of HSV gB were identified for the first time. An amino acid sequence alignment of the 11 HSV strains showed that the gB motifs are conserved among HSV strains, suggesting that they are functional in vivo. Additionally, we found that certain amino acids within the 13 motifs out of the 22 were reported to be functional in vivo. Furthermore, the gB mutants and gB-engineered oHSVs were also summarized. Conclusion: Our identification of the 22 novel motifs shed light on HSV gB biology and provide new options for gB engineering to improve the efficiency and safety of oHSVs.
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Affiliation(s)
- Fang Shi
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Gastroenterology, Huanggang Central Hospital, Huanggang, China
| | - Victoria W Xin
- Department of Biology, School of Humanities and Sciences, Stanford University, Stanford, CA, United States
| | - Xiao-Qin Liu
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Ying-Ying Wang
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Ying Zhang
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Jun-Ting Cheng
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Wen-Qi Cai
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Ying Xiang
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Xiao-Chun Peng
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Pathophysiology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Xianwang Wang
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Laboratory Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Hong-Wu Xin
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,Lianjiang People's Hospital, Guangdong, China
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16
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Abdoli S, Roohvand F, Teimoori-Toolabi L, Shayan S, Shokrgozar MA. Cytotoxic effect of dual fluorescent-labeled oncolytic herpes simplex virus type 1 on mouse tumorigenic cell lines. Res Pharm Sci 2019; 14:27-35. [PMID: 30936930 PMCID: PMC6407334 DOI: 10.4103/1735-5362.251850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The increasing incidences of cancer at the global scale have recently resulted in the invention of various biotechnology approaches among which the oncolytic virotherapy is a new strategy for the treatment of multiple tumors. Herpes simplex virus (HSV) based vectors are one of the most studied oncolytic agents, worldwide. Moreover, syngeneic animal models are the principal parts of the oncolytic virotherapies investigation. The effects of a dual fluorescent γ34.5 deleted vector-HSV-GR- on three mouse tumor cell lines were studied in this work. We previously generated a dual fluorescent labeled oncolytic HSV-HSV-GR- (both copies of γ34.5 were inactivated by insertion of two distinct fluorescent dyes, GFP and mCherry) in our laboratory; subsequently, they were used as oncolytic viruses. The three 4T1, TC-1, and CT26 cell lines were infected with HSV-GR. The infection efficacy and the elimination potency of HSV-GR were analyzed by photomicrography and flow cytometry methods. HSV-GR showed a significant efficiency to infect the cell lines examined. Flow cytometry analyses demonstrated that HSV-GR infected 89.3%, 86.1%, and 92.4% of 4T1, TC-1, and CT26 cells, respectively. Moreover, propidium iodide (PI) staining of infected cells indicated that HSV-GR could kill 27.9%, 21.2%, and 21.3% of 4T1, TC-1, and CT26 cells, respectively. Interestingly, HSV-GR infected cells were capable of expressing both GFP and mCherry at the same time. The promising effects of the oncolytic virus HSV-GR in the mouse syngeneic tumor cell system have shed more light on the therapeutic potential of this anti-cancer approach.
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Affiliation(s)
- Shahriyar Abdoli
- Department of Virology, Pasteur Institute of Iran, Tehran, I.R. Iran
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran, Tehran, I.R. Iran
| | - Ladan Teimoori-Toolabi
- Molecular Medicine Department, Biotechnology Research center, Pasteur Institute of Iran, Tehran, I.R. Iran
| | - Sara Shayan
- Department of Virology, Pasteur Institute of Iran, Tehran, I.R. Iran
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17
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Eradication of glioblastoma by immuno-virotherapy with a retargeted oncolytic HSV in a preclinical model. Oncogene 2019; 38:4467-4479. [PMID: 30755732 DOI: 10.1038/s41388-019-0737-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 01/20/2023]
Abstract
Oncolytic herpes simplex viruses are proving to be effective in clinical trials against a number of cancers. Here, R-115, an oncolytic herpes simplex virus retargeted to human erbB-2, fully virulent in its target cells, and armed with murine interleukin-12 was evaluated in a murine model of glioblastoma. We show that a single R-115 injection in established tumors resulted, in about 30% of animals, in the complete eradication of the tumor, otherwise invariably lethal. The treatment also induced a significant improvement in the overall median survival time of mice and a resistance to recurrence from the same neoplasia. Such a high degree of protection was unprecedented; it was not observed before following treatments with the commonly used, mutated/attenuated oncolytic viruses. This is the first study providing the evidence of benefits offered by a fully virulent, retargeted, and armed herpes simplex virus in the treatment of glioblastoma and paves the way for clinical translation.
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18
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Marzulli M, Mazzacurati L, Zhang M, Goins WF, Hatley ME, Glorioso JC, Cohen JB. A Novel Oncolytic Herpes Simplex Virus Design based on the Common Overexpression of microRNA-21 in Tumors. ACTA ACUST UNITED AC 2018; 3. [PMID: 30465046 PMCID: PMC6241327 DOI: 10.13188/2381-3326.1000007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Background Recognition sequences for microRNAs (miRs) that are down-regulated in tumor cells have recently been used to render lytic viruses tumor-specific. Since different tumor types down-regulate different miRs, this strategy requires virus customization to the target tumor. We have explored a feature that is shared by many tumor types, the up-regulation of miR-21, as a means to generate an oncolytic herpes simplex virus (HSV) that is applicable to a broad range of cancers. Methods We assembled an expression construct for a dominant-negative (dn) form of the essential HSV replication factor UL9 and inserted tandem copies of the miR-21 recognition sequence (T21) in the 3' untranslated region. Bacterial Artificial Chromosome (BAC) recombineering was used to introduce the dnUL9 construct with or without T21 into the HSV genome. Virus was produced by transfection and replication was assessed in different tumor and control cell lines. Results Virus production was conditional on the presence of the T21 sequence. The dnUL9-T21 virus replicated efficiently in tumor cell lines, less efficiently in cells that contained reduced miR-21 activity, and not at all in the absence of miR-21. Conclusion miR-21-sensitive expression of a dominant-negative inhibitor of HSV replication allows preferential destruction of tumor cells in vitro. This observation provides a basis for further development of a widely applicable oncolytic HSV.
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Affiliation(s)
- M Marzulli
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh
| | - L Mazzacurati
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh
| | - M Zhang
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh
| | - W F Goins
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh
| | - M E Hatley
- Department of Oncology, St. Jude Children's Research Hospital, USA
| | - J C Glorioso
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh
| | - J B Cohen
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh
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19
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Leoni V, Vannini A, Gatta V, Rambaldi J, Sanapo M, Barboni C, Zaghini A, Nanni P, Lollini PL, Casiraghi C, Campadelli-Fiume G. A fully-virulent retargeted oncolytic HSV armed with IL-12 elicits local immunity and vaccine therapy towards distant tumors. PLoS Pathog 2018; 14:e1007209. [PMID: 30080893 PMCID: PMC6095629 DOI: 10.1371/journal.ppat.1007209] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 08/16/2018] [Accepted: 07/11/2018] [Indexed: 12/12/2022] Open
Abstract
Oncolytic herpes simplex viruses (oHSVs) showed efficacy in clinical trials and practice. Most of them gain cancer-specificity from deletions/mutations in genes that counteract the host response, and grow selectively in cancer cells defective in anti-viral response. Because of the deletions/mutations, they are frequently attenuated or over-attenuated. We developed next-generation oHSVs, which carry no deletion/mutation, gain cancer-specificity from specific retargeting to tumor cell receptors-e.g. HER2 (human epidermal growth factor receptor 2)-hence are fully-virulent in the targeted cancer cells. The type of immunotherapy they elicit was not predictable, since non-attenuated HSVs induce and then dampen the innate response, whereas deleted/attenuated viruses fail to contrast it, and since the retargeted oHSVs replicate efficiently in tumor cells, but spare other cells in the tumor. We report on the first efficacy study of HER2-retargeted, fully-virulent oHSVs in immunocompetent mice. Their safety profile was very high. Both the unarmed R-LM113 and the IL-12-armed R-115 inhibited the growth of the primary HER2-Lewis lung carcinoma-1 (HER2-LLC1) tumor, R-115 being constantly more efficacious. All the mice that did not die because of the primary treated tumors, were protected from the growth of contralateral untreated tumors. The long-term survivors were protected from a second contralateral tumor, providing additional evidence for an abscopal immunotherapeutic effect. Analysis of the local response highlighted that particularly R-115 unleashed the immunosuppressive tumor microenvironment, i.e. induced immunomodulatory cytokines, including IFNγ, T-bet which promoted Th1 polarization. Some of the tumor infiltrating cells, e.g. CD4+, CD335+ cells were increased in the tumors of all responders mice, irrespective of which virus was employed, whereas CD8+, Foxp3+, CD141+ were increased and CD11b+ cells were decreased preferentially in R-115-treated mice. The durable response included a breakage of tolerance towards both HER2 and the wt tumor cells, and underscored a systemic immunotherapeutic vaccine response.
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Affiliation(s)
- Valerio Leoni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Andrea Vannini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Valentina Gatta
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Julie Rambaldi
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Mara Sanapo
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Catia Barboni
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Anna Zaghini
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Patrizia Nanni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Pier-Luigi Lollini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Costanza Casiraghi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Gabriella Campadelli-Fiume
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
- * E-mail:
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20
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Menotti L, Avitabile E, Gatta V, Malatesta P, Petrovic B, Campadelli-Fiume G. HSV as A Platform for the Generation of Retargeted, Armed, and Reporter-Expressing Oncolytic Viruses. Viruses 2018; 10:E352. [PMID: 29966356 PMCID: PMC6070899 DOI: 10.3390/v10070352] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 12/28/2022] Open
Abstract
Previously, we engineered oncolytic herpes simplex viruses (o-HSVs) retargeted to the HER2 (epidermal growth factor receptor 2) tumor cell specific receptor by the insertion of a single chain antibody (scFv) to HER2 in gD, gH, or gB. Here, the insertion of scFvs to three additional cancer targets—EGFR (epidermal growth factor receptor), EGFRvIII, and PSMA (prostate specific membrane antigen)—in gD Δ6–38 enabled the generation of specifically retargeted o-HSVs. Viable recombinants resulted from the insertion of an scFv in place of aa 6–38, but not in place of aa 61–218. Hence, only the gD N-terminus accepted all tested scFv inserts. Additionally, the insertion of mIL12 in the US1-US2 intergenic region of the HER2- or EGFRvIII-retargeted o-HSVs, and the further insertion of Gaussia Luciferase, gave rise to viable recombinants capable of secreting the cytokine and the reporter. Lastly, we engineered two known mutations in gB; they increased the ability of an HER2-retargeted recombinant to spread among murine cells. Altogether, current data show that the o-HSV carrying the aa 6–38 deletion in gD serves as a platform for the specific retargeting of o-HSV tropism to a number of human cancer targets, and the retargeted o-HSVs serve as simultaneous vectors for two molecules.
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Affiliation(s)
- Laura Menotti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40126, Italy.
| | - Elisa Avitabile
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40126, Italy.
| | - Valentina Gatta
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40126, Italy.
| | - Paolo Malatesta
- Department of Experimental Medicine, University of Genoa, Genoa 16132, Italy.
- Ospedale Policlinico San Martino-IRCCS per l'Oncologia, Genoa 16132, Italy.
| | - Biljana Petrovic
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40126, Italy.
| | - Gabriella Campadelli-Fiume
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40126, Italy.
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21
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Campadelli-Fiume G. Spotlight on… Gabriella Campadelli-Fiume. FEMS Microbiol Lett 2018; 365:5002024. [PMID: 29873707 PMCID: PMC5967523 DOI: 10.1093/femsle/fny019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 01/26/2018] [Indexed: 12/02/2022] Open
Affiliation(s)
- Gabriella Campadelli-Fiume
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via San Giacomo, 12 40126 Bologna, Italy
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22
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Dual Ligand Insertion in gB and gD of Oncolytic Herpes Simplex Viruses for Retargeting to a Producer Vero Cell Line and to Cancer Cells. J Virol 2018; 92:JVI.02122-17. [PMID: 29263257 PMCID: PMC5827396 DOI: 10.1128/jvi.02122-17] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 12/07/2017] [Indexed: 01/03/2023] Open
Abstract
Oncolytic viruses gain cancer specificity in several ways. Like the majority of viruses, they grow better in cancer cells that are defective in mounting the host response to viruses. Often, they are attenuated by deletion or mutation of virulence genes that counteract the host response or are naturally occurring oncolytic mutants. In contrast, retargeted viruses are not attenuated or deleted; their cancer specificity rests on a modified, specific tropism for cancer receptors. For herpes simplex virus (HSV)-based oncolytics, the detargeting-retargeting strategies employed so far were based on genetic modifications of gD. Recently, we showed that even gH or gB can serve as retargeting tools. To enable the growth of retargeted HSVs in cells that can be used for clinical-grade virus production, a double-retargeting strategy has been developed. Here we show that several sites in the N terminus of gB are suitable to harbor the 20-amino-acid (aa)-long GCN4 peptide, which readdresses HSV tropism to Vero cells expressing the artificial GCN4 receptor and thus enables virus cultivation in the producer noncancer Vero-GCN4R cell line. The gB modifications can be combined with a minimal detargeting modification in gD, consisting in the deletion of two residues, aa 30 and 38, and replacement of aa 38 with the scFv to human epidermal growth factor receptor 2 (HER2), for retargeting to the cancer receptor. The panel of recombinants was analyzed comparatively in terms of virus growth, cell-to-cell spread, cytotoxicity, and in vivo antitumor efficacy to define the best double-retargeting strategy. IMPORTANCE There is increasing interest in oncolytic viruses, following FDA and the European Medicines Agency (EMA) approval of HSV OncovexGM-CSF, and, mainly, because they greatly boost the immune response to the tumor and can be combined with immunotherapeutic agents, particularly checkpoint inhibitors. A strategy to gain cancer specificity and avoid virus attenuation is to retarget the virus tropism to cancer-specific receptors of choice. Cultivation of fully retargeted viruses is challenging, since they require cells that express the cancer receptor. We devised a strategy for their cultivation in producer noncancer Vero cell derivatives. Here, we developed a double-retargeting strategy, based on insertion of one ligand in gB for retargeting to a Vero cell derivative and of anti-HER2 ligand in gD for cancer retargeting. These modifications were combined with a minimally destructive detargeting strategy. This study and its companion paper explain the clinical-grade cultivation of retargeted oncolytic HSVs and promote their translation to the clinic.
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Tumour-specific triple-regulated oncolytic herpes virus to target glioma. Oncotarget 2017; 7:28658-69. [PMID: 27070093 PMCID: PMC5053753 DOI: 10.18632/oncotarget.8637] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 03/16/2016] [Indexed: 01/04/2023] Open
Abstract
Oncolytic herpes simplex virus type 1 (oHSV-1) therapy is an emerging treatment modality that selectively destroys cancer. Here we report use of a glioma specific HSV-1 amplicon virus (SU4-124 HSV-1) to selectively target tumour cells. To achieve transcriptional regulation of the SU4-124 HSV-1 virus, the promoter for the essential HSV-1 gene ICP4 was replaced with a tumour specific survivin promoter. Translational regulation was achieved by incorporating 5 copies of microRNA 124 target sequences into the 3'UTR of the ICP4 gene. Additionally, a 5'UTR of rat fibroblast growth factor -2 was added in front of the viral ICP4 gene open reading frame. Our results confirmed enhanced expression of survivin and eIF4E in different glioma cells and increased micro-RNA124 expression in normal human and mouse brain tissue. SU4-124 HSV-1 had an increased ICP4 expression and virus replication in different glioma cells compared to normal neuronal cells. SU4-124 HSV-1 exerted a strong antitumour effect against a panel of glioma cell lines. Intracranial injection of SU4-124 HSV-1 did not reveal any sign of toxicity on day 15 after the injection. Moreover, a significantly enhanced antitumour effect with the intratumourally injected SU4-124 HSV-1 virus was demonstrated in mice bearing human glioma U87 tumours, whereas viral DNA was almost undetectable in normal organs. Our study indicates that incorporation of multiple cancer-specific regulators in an HSV-1 system significantly enhances both cancer specificity and oncolytic activity.
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Role of autophagy in oncolytic herpes simplex virus type 1-induced cell death in squamous cell carcinoma cells. Cancer Gene Ther 2017; 24:393-400. [PMID: 28984290 DOI: 10.1038/cgt.2017.33] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 08/03/2017] [Indexed: 12/30/2022]
Abstract
Herpes simplex virus type 1 (HSV-1) is one of the most widely studied viruses for oncolytic virotherapy. In squamous cell carcinoma (SCC) cells, the role of autophagy induced by neurovirulence gene-deficient HSV-1s in programmed cell death has not yet been elucidated. The oncolytic HSV-1 strain RH2, which lacks the γ34.5 gene and induces the fusion of human SCC cells, was used. RH2 replicated and induced cell death in SCC cells. RH2 infection was accompanied by the aggregation of microtubule-associated protein 1 light chain 3 (LC3) in the cytoplasm, the conversion of LC3-I to LC3-II and the formation of double-membrane vacuoles containing cell contents. No significant changes were observed in the expression of Bcl-2 or Bax, while a slight decrease was observed in that of Beclin 1. The autophagy inhibitors, 3-methyladenine (3-MA) and bafilomycin A1, did not affect viral replication, but significantly inhibited the cytotoxicity of RH2. The caspase-3 inhibitor z-DEVD-fmk and caspase-1 inhibitor z-YVAD-fmk also reduced the cytotoxicity of RH2. These results demonstrated that γ34.5 gene-deficient HSV-1 RH2 induced autophagic cell death in SCC cells as well as pyroptosis and apoptosis.
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Abdoli S, Roohvand F, Teimoori-Toolabi L, Shokrgozar MA, Bahrololoumi M, Azadmanesh K. Construction of Various γ34.5 Deleted Fluorescent-Expressing Oncolytic herpes Simplex type 1 (oHSV) for Generation and Isolation of HSV-Based Vectors. IRANIAN BIOMEDICAL JOURNAL 2017; 21:206-17. [PMID: 28525954 PMCID: PMC5459936 DOI: 10.18869/acadpub.ibj.21.4.206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Background Oncolytic herpes simplex virus (oHSV)-based vectors lacking γ34.5 gene, are considered as ideal templates to construct efficient vectors for (targeted) cancer gene therapy. Herein, we reported the construction of three single/dually-flourescence labeled and γ34.5-deleted, recombinant HSV-1 vectors for rapid generation and easy selection/isolation of different HSV-Based vectors. Methods Generation of recombinant viruses was performed with conventional homologous recombination methods using green fluorescent protein (GFP) and BleCherry harboring shuttle vectors. Viruses were isolated by direct fluorescence observation and standard plaque purifying methods and confirmed by PCR and sequencing and flow cytometry. XTT and plaque assay titration were performed on Vero, U87MG, and T98 GBM cell lines. Results We generated three recombinant viruses, HSV-GFP, HSV-GR (Green-Red), and HSV-Red. The HSV-GFP showed two log higher titer (1010 PFU) than wild type (108 PFU). In contrast, HSV-GR and HSV-Red showed one log lower titer (107 PFU) than parental HSV. Cytotoxicity analysis showed that HSV-GR and HSV-Red can lyse target tumor cells at multiplicity of infection of 10 and 1 (P<0.001). Moreover, HSV-GFP showed higher infection potency (98%) in comparison with HSV-GR (82%). Conclusion Our oHSVs provide a simple and an efficient platform for construction and rapid isolation of 2nd and 3rd generation oHSVs by replacing the inserted dyes with transgenes and also for rapid identification via fluorescence activated cell sorting. These vectors can also be used for tracing the efficacy of therapeutic agents on target cells, imaging of neural or tumoral cells in vitro/in vivo and as oncolytic agents in cancer therapy.
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Affiliation(s)
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Ladan Teimoori-Toolabi
- Molecular Medicine Department, Biotechnology Research center, Pasteur institute of Iran, Tehran, Iran
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Adler B, Sattler C, Adler H. Herpesviruses and Their Host Cells: A Successful Liaison. Trends Microbiol 2017; 25:229-241. [DOI: 10.1016/j.tim.2016.11.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/08/2016] [Accepted: 11/15/2016] [Indexed: 12/11/2022]
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Hoffner B, Iodice GM, Gasal E. Administration and Handling of Talimogene Laherparepvec: An Intralesional Oncolytic Immunotherapy for Melanoma. Oncol Nurs Forum 2017; 43:219-26. [PMID: 26906132 DOI: 10.1188/16.onf.219-226] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE/OBJECTIVES To describe the administration and handling requirements of oncolytic viruses in the context of talimogene laherparepvec (Imlygic™), a first-in-class oncolytic immunotherapy.
. DATA SOURCES Study procedures employed in clinical trials, in particular the OPTiM study.
. DATA SYNTHESIS Evaluation of nursing considerations for administration of talimogene laherparepvec.
. CONCLUSIONS Talimogene laherparepvec is administered through a series of intralesional injections into cutaneous, subcutaneous, or nodal tumors (with ultrasound guidance as needed) during an outpatient clinic visit. A single insertion point is recommended; however, multiple insertion points are acceptable if the tumor radius exceeds the needle's radial reach. Talimogene laherparepvec must be evenly distributed throughout the tumor through each insertion site. Talimogene laherparepvec requires storage at -90°C to -70°C and, once thawed, should be administered immediately or stored in its original vial and carton and protected from light in a refrigerator (2°C to 8°C).
. IMPLICATIONS FOR NURSING Because talimogene laherparepvec can be administered in the outpatient setting, nurses will be pivotal for appropriate integration and administration of this unique and effective therapy.
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Yoo J, Kistler CA, Yan L, Dargan A, Siddiqui AA. Endoscopic ultrasound in pancreatic cancer: innovative applications beyond the basics. J Gastrointest Oncol 2016; 7:1019-1029. [PMID: 28078128 PMCID: PMC5177581 DOI: 10.21037/jgo.2016.08.07] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/06/2016] [Indexed: 12/16/2022] Open
Abstract
Endoscopic ultrasound (EUS) has become a mainstay in assisting in the diagnosis and staging of pancreatic cancer. In addition, EUS provides a modality to treat chronic pain through celiac plexus neurolysis. Currently, there is growing data and utilization of EUS in more diverse and innovative applications aimed at providing more sophisticated diagnostic, prognostic and therapeutic options for patients with pancreatic cancer. EUS delivery of chemotherapy, viral and biological vectors and fiducial markers may eventually revolutionize the way clinicians approach the care of a patient with pancreatic cancer.
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Affiliation(s)
- Joseph Yoo
- Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - C. Andrew Kistler
- Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
- Division of Gastroenterology and Hepatology, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Linda Yan
- Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Andrew Dargan
- Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Ali A. Siddiqui
- Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
- Division of Gastroenterology and Hepatology, Thomas Jefferson University Hospital, Philadelphia, PA, USA
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Presage of oncolytic virotherapy for oral cancer with herpes simplex virus. JAPANESE DENTAL SCIENCE REVIEW 2016; 53:53-60. [PMID: 28479936 PMCID: PMC5405200 DOI: 10.1016/j.jdsr.2016.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 10/02/2016] [Accepted: 10/08/2016] [Indexed: 12/30/2022] Open
Abstract
A virus is a pathogenic organism that causes a number of infectious diseases in humans. The oral cavity is the site at which viruses enter and are excreted from the human body. Herpes simplex virus type 1 (HSV-1) produces the primary infectious disease, gingivostomatitis, and recurrent disease, labial herpes. HSV-1 is one of the most extensively investigated viruses used for cancer therapy. In principle, HSV-1 infects epithelial cells and neuronal cells and exhibits cytotoxicity due to its cytopathic effects on these cells. If the replication of the virus occurs in tumor cells, but not normal cells, the virus may be used as an antitumor agent. Therefore, HSV-1 genes have been modified by genetic engineering, and in vitro and in vivo studies with the oncolytic virus have demonstrated its efficiency against head and neck cancer including oral cancer. The oncolytic abilities of other viruses such as adenovirus and reovirus have also been demonstrated. In clinical trials, HSV-1 is the top runner and is now available for the treatment of patients with advanced melanoma. Thus, melanoma in the oral cavity is the target of oncolytic HSV-1. Oncolytic virotherapy is a hopeful and realistic modality for the treatment of oral cancer.
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Leoni V, Gatta V, Palladini A, Nicoletti G, Ranieri D, Dall'Ora M, Grosso V, Rossi M, Alviano F, Bonsi L, Nanni P, Lollini PL, Campadelli-Fiume G. Systemic delivery of HER2-retargeted oncolytic-HSV by mesenchymal stromal cells protects from lung and brain metastases. Oncotarget 2016; 6:34774-87. [PMID: 26430966 PMCID: PMC4741489 DOI: 10.18632/oncotarget.5793] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/04/2015] [Indexed: 01/01/2023] Open
Abstract
Fully retargeted oncolytic herpes simplex viruses (o-HSVs) gain cancer-specificity from redirection of tropism to cancer-specific receptors, and are non-attenuated. To overcome the hurdles of systemic delivery, and enable oncolytic viruses (o-viruses) to reach metastatic sites, carrier cells are being exploited. Mesenchymal stromal cells (MSCs) were never tested as carriers of retargeted o-viruses, given their scarse-null expression of the cancer-specific receptors. We report that MSCs from different sources can be forcedly infected with a HER2-retargeted oncolytic HSV. Progeny virus spread from MSCs to cancer cells in vitro and in vivo. We evaluated the organ distribution and therapeutic efficacy in two murine models of metastatic cancers, following a single i.v. injection of infected MSCs. As expected, the highest concentration of carrier-cells and of viral genomes was in the lungs. Viral genomes persisted throughout the body for at least two days. The growth of ovarian cancer lung metastases in nude mice was strongly inhibited, and the majority of treated mice appeared metastasis-free. The treatment significantly inhibited also breast cancer metastases to the brain in NSG mice, and reduced by more than one-half the metastatic burden in the brain.
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Affiliation(s)
- Valerio Leoni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Valentina Gatta
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Arianna Palladini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Giordano Nicoletti
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Dario Ranieri
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Massimiliano Dall'Ora
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Valentina Grosso
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Martina Rossi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Francesco Alviano
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Laura Bonsi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Patrizia Nanni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Pier-Luigi Lollini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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Buijs PRA, Verhagen JHE, van Eijck CHJ, van den Hoogen BG. Oncolytic viruses: From bench to bedside with a focus on safety. Hum Vaccin Immunother 2016; 11:1573-84. [PMID: 25996182 DOI: 10.1080/21645515.2015.1037058] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Oncolytic viruses are a relatively new class of anti-cancer immunotherapy agents. Several viruses have undergone evaluation in clinical trials in the last decades, and the first agent is about to be approved to be used as a novel cancer therapy modality. In the current review, an overview is presented on recent (pre)clinical developments in the field of oncolytic viruses that have previously been or currently are being evaluated in clinical trials. Special attention is given to possible safety issues like toxicity, environmental shedding, mutation and reversion to wildtype virus.
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Key Words
- CAR, Coxsackie Adenovirus receptor
- CD, cytosine deaminase
- CEA, carcinoembryonic antigen
- CVA, Coxsackievirus type A
- DAF, decay accelerating factor
- DNA, DNA
- EEV, extracellular enveloped virus
- EGF, epidermal growth factor
- EGF-R, EGF receptor
- EMA, European Medicines Agency
- FDA, Food and Drug Administration
- GBM, glioblastoma multiforme
- GM-CSF, granulocyte-macrophage colony-stimulating factor
- HA, hemagglutinin
- HAdV, Human (mast)adenovirus
- HER2, human epidermal growth factor receptor 2
- HSV, herpes simplex virus
- ICAM-1, intercellular adhesion molecule 1
- IFN, interferon
- IRES, internal ribosome entry site
- KRAS, Kirsten rat sarcoma viral oncogene homolog
- Kb, kilobase pairs
- MeV, Measles virus
- MuLV, Murine leukemia virus
- NDV, Newcastle disease virus
- NIS, sodium/iodide symporter
- NSCLC, non-small cell lung carcinoma
- OV, oncolytic virus
- PEG, polyethylene glycol
- PKR, protein kinase R
- PV, Polio virus
- RCR, replication competent retrovirus
- RCT, randomized controlled trial
- RGD, arginylglycylaspartic acid (Arg-Gly-Asp)
- RNA, ribonucleic acid
- Rb, retinoblastoma
- SVV, Seneca Valley virus
- TGFα, transforming growth factor α
- VGF, Vaccinia growth factor
- VSV, Vesicular stomatitis virus
- VV, Vaccinia virus
- cancer
- crHAdV, conditionally replicating HAdV
- dsDNA, double stranded DNA
- dsRNA, double stranded RNA
- environment
- hIFNβ, human IFN β
- immunotherapy
- mORV, Mammalian orthoreovirus
- mORV-T3D, mORV type 3 Dearing
- oHSV, oncolytic HSV
- oncolytic virotherapy
- oncolytic virus
- rdHAdV, replication-deficient HAdV
- review
- safety
- shedding
- ssRNA, single stranded RNA
- tk, thymidine kinase
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Affiliation(s)
- Pascal R A Buijs
- a Department of Surgery; Erasmus MC; University Medical Center ; Rotterdam , The Netherlands
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Takasu A, Masui A, Hamada M, Imai T, Iwai S, Yura Y. Immunogenic cell death by oncolytic herpes simplex virus type 1 in squamous cell carcinoma cells. Cancer Gene Ther 2016; 23:107-13. [PMID: 26987291 DOI: 10.1038/cgt.2016.8] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/15/2016] [Accepted: 02/19/2016] [Indexed: 02/06/2023]
Abstract
Molecules essential for the induction of immunogenic cell death (ICD) are called damage-associated molecular patterns (DAMPs). The effects of oncolytic herpes simplex virus type 1 (HSV-1) on the production of DAMPs were examined in squamous cell carcinoma (SCC) cells. The cytopathic effects of HSV-1 RH2 were observed in mouse SCCVII cells infected at a high multiplicity of infection (MOI), and the amounts of viable cells were decreased. After being infected with RH2, ATP and high mobility group box 1 (HMGB1) were released extracellulary, while calreticulin (CRT) translocated to the cell membrane. A flow-cytometric analysis revealed an increase in the number of annexin-V and propidium iodide (PI)-stained cells; and the amount of cleaved poly (ADP-ribose) polymerase (PARP) was increased. The killing effect of RH2 was reduced by pan-caspase inhibitor z-VAD-fmk and the caspase-1 inhibitor z-YVAD-fmk, suggesting the involvement of apoptosis and pyroptosis. In C3H mice bearing synergic SCCVII tumors, the growth of tumors injected with the supernatant of RH2-infected cells was less than that of tumors injected with phosphate-buffered saline (PBS). These results indicate that oncolytic HSV-1 RH2 produces DAMPs from SCC cells to induce cell death. This may contribute to the enhancement of tumor immunity by oncolytic HSV-1.
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Affiliation(s)
- A Takasu
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - A Masui
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - M Hamada
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - T Imai
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - S Iwai
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Y Yura
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
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Ibrahim AM, Wang YH. Viro-immune therapy: A new strategy for treatment of pancreatic cancer. World J Gastroenterol 2016; 22:748-763. [PMID: 26811622 PMCID: PMC4716074 DOI: 10.3748/wjg.v22.i2.748] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/26/2015] [Accepted: 12/14/2015] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an almost uniformly lethal disease with less than 5% survival at five years. This is largely due to metastatic disease, which is already present in the majority of patients when diagnosed. Even when the primary cancer can be removed by radical surgery, local recurrence occurs within one year in 50%-80% of cases. Therefore, it is imperative to develop new approaches for the treatment of advanced cancer and the prevention of recurrence after surgery. Tumour-targeted oncolytic viruses (TOVs) have become an attractive therapeutic agent as TOVs can kill cancer cells through multiple mechanisms of action, especially via virus-induced engagement of the immune response specifically against tumour cells. To attack tumour cells effectively, tumour-specific T cells need to overcome negative regulatory signals that suppress their activation or that induce tolerance programmes such as anergy or exhaustion in the tumour microenvironment. In this regard, the recent breakthrough in immunotherapy achieved with immune checkpoint blockade agents, such as anti-cytotoxic T-lymphocyte-associate protein 4, programmed death 1 (PD-1) or PD-L1 antibodies, has demonstrated the possibility of relieving immune suppression in PDAC. Therefore, the combination of oncolytic virotherapy and immune checkpoint blockade agents may synergistically function to enhance the antitumour response, lending the opportunity to be the future for treatment of pancreatic cancer.
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Lerma L, Alcalá S, Piñero C, Torres M, Martin B, Lim F, Sainz B, Tabarés E. Expression of the immediate early IE180 protein under the control of the hTERT and CEA tumor-specific promoters in recombinant pseudorabies viruses: Effects of IE180 protein on promoter activity and apoptosis induction. Virology 2015; 488:9-19. [PMID: 26590793 DOI: 10.1016/j.virol.2015.10.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/20/2015] [Accepted: 10/29/2015] [Indexed: 10/22/2022]
Abstract
Since the pseudorabies virus (PRV) genome encodes for a single immediate-early protein, IE180, we reasoned that this strong transactivating protein could represent a key regulatory switch that could be genetically manipulated in order to alter its tropism towards cancer cells. We therefore initiated studies to test whether the human telomerase reverse transcriptase (hTERT) and carcinoembryonic antigen (CEA) tumor promoters could functionally replace the IE180 promoter. We show that both promoters can functionally substitute the IE180 promoter in plasmid constructs and recombinant viruses, and observed that IE180 differentially auto-regulated each promoter tested, with PRV IE180 negatively regulating the hTERT promoter but positively hyper-activating the CEA promoter. Interestingly, we also observed that the recombinant PRV-TER and PRV-CEA viruses preferentially replicated in diverse cancer cell lines compared to control non-cancer cells, and the PRV-CEA was capable of additionally inducing a profound apoptotic phenotype which we correlated to the overexpression of IE180.
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Affiliation(s)
- L Lerma
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - S Alcalá
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - C Piñero
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - M Torres
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - B Martin
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - F Lim
- Centro de Biología Molecular, CSIC-UAM, Cantoblanco, Madrid 28049, Spain
| | - B Sainz
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - E Tabarés
- Departamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid 28029, Spain.
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Dual silencing of Bcl-2 and Survivin by HSV-1 vector shows better antitumor efficacy in higher PKR phosphorylation tumor cells in vitro and in vivo. Cancer Gene Ther 2015; 22:380-6. [DOI: 10.1038/cgt.2015.30] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 11/08/2022]
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Le-Trilling VTK, Trilling M. Attack, parry and riposte: molecular fencing between the innate immune system and human herpesviruses. ACTA ACUST UNITED AC 2015; 86:1-13. [DOI: 10.1111/tan.12594] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- V. T. K. Le-Trilling
- Institute for Virology; University Hospital Essen, University Duisburg-Essen; Essen Germany
| | - M. Trilling
- Institute for Virology; University Hospital Essen, University Duisburg-Essen; Essen Germany
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The Engineering of a Novel Ligand in gH Confers to HSV an Expanded Tropism Independent of gD Activation by Its Receptors. PLoS Pathog 2015; 11:e1004907. [PMID: 25996983 PMCID: PMC4440635 DOI: 10.1371/journal.ppat.1004907] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 04/22/2015] [Indexed: 01/08/2023] Open
Abstract
Herpes simplex virus (HSV) enters cells by means of four essential glycoproteins - gD, gH/gL, gB, activated in a cascade fashion by gD binding to one of its receptors, nectin1 and HVEM. We report that the engineering in gH of a heterologous ligand – a single-chain antibody (scFv) to the cancer-specific HER2 receptor – expands the HSV tropism to cells which express HER2 as the sole receptor. The significance of this finding is twofold. It impacts on our understanding of HSV entry mechanism and the design of retargeted oncolytic-HSVs. Specifically, entry of the recombinant viruses carrying the scFv-HER2–gH chimera into HER2+ cells occurred in the absence of gD receptors, or upon deletion of key residues in gD that constitute the nectin1/HVEM binding sites. In essence, the scFv in gH substituted for gD-mediated activation and rendered a functional gD non-essential for entry via HER2. The activation of the gH moiety in the chimera was carried out by the scFv in cis, not in trans as it occurs with wt-gD. With respect to the design of oncolytic-HSVs, previous retargeting strategies were based exclusively on insertion in gD of ligands to cancer-specific receptors. The current findings show that (i) gH accepts a heterologous ligand. The viruses retargeted via gH (ii) do not require the gD-dependent activation, and (iii) replicate and kill cells at high efficiency. Thus, gH represents an additional tool for the design of fully-virulent oncolytic-HSVs retargeted to cancer receptors and detargeted from gD receptors. To enter cells, all herpesviruses use the core fusion glycoproteins gH/gL and gB, in addition to species-specific glycoproteins responsible for specific tropism, etc. In HSV, the additional glycoprotein is the essential gD. We engineered in gH a heterologous ligand to the HER2 cancer receptor. The recombinant viruses entered cells through HER2, independently of gD activation by its receptors, or despite deletion of key residues that are part of the receptors’ binding sites in gD. The ligand activated gH in cis. Cumulatively, the receptor-binding and activating functions of gD were no longer essential and were replaced by the heterologous ligand in gH. Relevance to translational medicine rests in the fact that gH can serve as a tool to retarget HSV tropism to cancer-specific receptors. This expands the toolkit for the design of fully-virulent oncolytic-HSVs.
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Wang JN, Xu LH, Zeng WG, Hu P, Rabkin SD, Liu RR. Treatment of Human Thyroid Carcinoma Cells with the G47delta Oncolytic Herpes Simplex Virus. Asian Pac J Cancer Prev 2015; 16:1241-5. [DOI: 10.7314/apjcp.2015.16.3.1241] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Bhimrao SK, Maguire J, Garnis C, Tang P, Lea J, Akagami R, Westerberg BD. Lack of Association between Human Herpesvirus and Vestibular Schwannoma. Otolaryngol Head Neck Surg 2015; 152:513-7. [DOI: 10.1177/0194599814563517] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective To assess for the presence of human herpesvirus (HHV) using immunohistochemical and polymerase chain reaction (PCR) assay in surgically excised vestibular schwannoma (VS) samples. Study Design Cross-sectional study. Setting A retrospective laboratory-based study of tumors from patients with vestibular schwannoma. Subjects and Methods Tissue microarrays (TMAs) representing sporadic and NF2-associated VS from 121 patients, as well as appropriate positive and negative controls, were studied. TMA sections were immunostained using antibodies directed against HHV-1, HHV-2, HHV-3, HHV-4, HHV-5, and HHV-8. PCR was used for the detection of all 8 known human herpesviruses. Results There was no detectable HHV (HHV-1, HHV-2, HHV-3, HHV-4, HHV-5, HHV-8) by immunohistochemistry in any of the 121 cases of sporadic and NF2 cases analyzed. These data were further validated by DNA sequence analyses using PCR in a subset of the VS samples, all of which were found to be negative for all HHV. Conclusions The data offer no support for an association between HHV and the development of sporadic or NF2-associated VS in humans.
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Affiliation(s)
- Sanjiv K. Bhimrao
- Division of Otolaryngology–Head and Neck Surgery, University of British Columbia, Vancouver, Canada
| | - John Maguire
- Department of Pathology and Laboratory Medicine, Division of Neuropathology, University of British Columbia, Vancouver, Canada
| | - Cathie Garnis
- Division of Otolaryngology–Head and Neck Surgery, University of British Columbia, Vancouver, Canada
| | - Patrick Tang
- Department of Pathology and Laboratory Medicine, British Columbia Centre for Disease Control, University of British Columbia, Vancouver, Canada
| | - Jane Lea
- Division of Otolaryngology–Head and Neck Surgery, University of British Columbia, Vancouver, Canada
| | - Ryojo Akagami
- Division of Neurosurgery, University of British Columbia, Vancouver, Canada
| | - Brian D. Westerberg
- Division of Otolaryngology–Head and Neck Surgery, University of British Columbia, Vancouver, Canada
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Ishihara M, Seo N, Mitsui J, Muraoka D, Tanaka M, Mineno J, Ikeda H, Shiku H. Systemic CD8+ T cell-mediated tumoricidal effects by intratumoral treatment of oncolytic herpes simplex virus with the agonistic monoclonal antibody for murine glucocorticoid-induced tumor necrosis factor receptor. PLoS One 2014; 9:e104669. [PMID: 25105508 PMCID: PMC4126744 DOI: 10.1371/journal.pone.0104669] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 07/11/2014] [Indexed: 02/07/2023] Open
Abstract
Oncolytic virotherapy combined with immunomodulators is a novel noninvasive strategy for cancer treatment. In this study, we examined the tumoricidal effects of oncolytic HF10, a naturally occurring mutant of herpes simplex virus type-1, combined with an agonistic DTA-1 monoclonal antibody specific for the glucocorticoid-induced tumor necrosis factor receptor. Two murine tumor models were used to evaluate the therapeutic efficacies of HF10 virotherapy combined with DTA-1. The kinetics and immunological mechanisms of DTA-1 in HF10 infection were examined using flow cytometry and immunohistochemistry. Intratumoral administration of HF10 in combination with DTA-1 at a low dose resulted in a more vigorous attenuation of growth of the untreated contralateral as well as the treated tumors than treatment with either HF10 or DTA-1 alone. An accumulation of CD8+ T cells, including tumor- and herpes simplex virus type-1-specific populations, and a decrease in the number of CD4+ Foxp3+ T regulatory cells were seen in both HF10- and DTA-1-treated tumors. Studies using Fc-digested DTA-1 and Fcγ receptor knockout mice demonstrated the direct participation of DTA-1 in regulatory T cell depletion by antibody-dependent cellular cytotoxicity primarily via macrophages. These results indicated the potential therapeutic efficacy of a glucocorticoid-induced tumor necrosis factor receptor-specific monoclonal antibody in oncolytic virotherapy at local tumor sites.
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Affiliation(s)
- Mikiya Ishihara
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan
| | - Naohiro Seo
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan
- * E-mail: (NS); (HS)
| | - Jun Mitsui
- Department of Gastroenterological Surgery II, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - Daisuke Muraoka
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan
| | - Maki Tanaka
- Gene Medicine Business Unit, Takara Bio Inc., Shiga, Japan
| | - Junichi Mineno
- Gene Medicine Business Unit, Takara Bio Inc., Shiga, Japan
| | - Hiroaki Ikeda
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan
| | - Hiroshi Shiku
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan
- * E-mail: (NS); (HS)
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Cody JJ, Markert JM, Hurst DR. Histone deacetylase inhibitors improve the replication of oncolytic herpes simplex virus in breast cancer cells. PLoS One 2014; 9:e92919. [PMID: 24651853 PMCID: PMC3961437 DOI: 10.1371/journal.pone.0092919] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/26/2014] [Indexed: 02/06/2023] Open
Abstract
New therapies are needed for metastatic breast cancer patients. Oncolytic herpes simplex virus (oHSV) is an exciting therapy being developed for use against aggressive tumors and established metastases. Although oHSV have been demonstrated safe in clinical trials, a lack of sufficient potency has slowed the clinical application of this approach. We utilized histone deacetylase (HDAC) inhibitors, which have been noted to impair the innate antiviral response and improve gene transcription from viral vectors, to enhance the replication of oHSV in breast cancer cells. A panel of chemically diverse HDAC inhibitors were tested at three different doses (<, = , and >LD50) for their ability to modulate the replication of oHSV in breast cancer cells. Several of the tested HDAC inhibitors enhanced oHSV replication at low multiplicity of infection (MOI) following pre-treatment of the metastatic breast cancer cell line MDA-MB-231 and the oHSV-resistant cell line 4T1, but not in the normal breast epithelial cell line MCF10A. Inhibitors of class I HDACs, including pan-selective compounds, were more effective for increasing oHSV replication compared to inhibitors that selectively target class II HDACs. These studies demonstrate that select HDAC inhibitors increase oHSV replication in breast cancer cells and provides support for pre-clinical evaluation of this combination strategy.
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Affiliation(s)
- James J. Cody
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - James M. Markert
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Douglas R. Hurst
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
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Ady JW, Heffner J, Klein E, Fong Y. Oncolytic viral therapy for pancreatic cancer: current research and future directions. Oncolytic Virother 2014; 3:35-46. [PMID: 27512661 PMCID: PMC4918362 DOI: 10.2147/ov.s53858] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The development of targeted agents and chemotherapies for pancreatic cancer has only modestly affected clinical outcome and not changed 5-year survival. Fortunately the genetic and molecular mechanisms underlying pancreatic cancer are being rapidly uncovered and are providing opportunities for novel targeted therapies. Oncolytic viral therapy is one of the most promising targeted agents for pancreatic cancer. This review will look at the current state of the development of these self-replicating nanoparticles in the treatment of pancreatic cancer.
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Affiliation(s)
- Justin W Ady
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Jacqueline Heffner
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Elizabeth Klein
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Yuman Fong
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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Hughes T, Coffin RS, Lilley CE, Ponce R, Kaufman HL. Critical analysis of an oncolytic herpesvirus encoding granulocyte-macrophage colony stimulating factor for the treatment of malignant melanoma. Oncolytic Virother 2014; 3:11-20. [PMID: 27512660 PMCID: PMC4918360 DOI: 10.2147/ov.s36701] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Oncolytic viruses that selectively lyse tumor cells with minimal damage to normal cells are a new area of therapeutic development in oncology. An attenuated herpesvirus encoding the granulocyte-macrophage colony stimulating factor (GM-CSF), known as talimogene laherparepvec (T-VEC), has been identified as an attractive oncolytic virus for cancer therapy based on preclinical tumor studies and results from early-phase clinical trials and a large randomized Phase III study in melanoma. In this review, we discuss the basic biology of T-VEC, describe the role of GM-CSF as an immune adjuvant, summarize the preclinical data, and report the outcomes of published clinical trials using T-VEC. The emerging data suggest that T-VEC is a safe and potentially effective antitumor therapy in malignant melanoma and represents the first oncolytic virus to demonstrate therapeutic activity against human cancer in a randomized, controlled Phase III study.
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Affiliation(s)
- Tasha Hughes
- Departments of General Surgery and Immunology and Microbiology, Rush University Medical Center, Chicago IL, USA
| | - Robert S Coffin
- BioVex, Inc, a subsidiary of Amgen, Inc, Sherman Oaks, CA, USA
| | | | - Rafael Ponce
- BioVex, Inc, a subsidiary of Amgen, Inc, Sherman Oaks, CA, USA
| | - Howard L Kaufman
- Departments of General Surgery and Immunology and Microbiology, Rush University Medical Center, Chicago IL, USA
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Braidwood L, Graham SV, Graham A, Conner J. Oncolytic herpes viruses, chemotherapeutics, and other cancer drugs. Oncolytic Virother 2013; 2:57-74. [PMID: 27512658 PMCID: PMC4918355 DOI: 10.2147/ov.s52601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Oncolytic viruses are emerging as a potential new way of treating cancers. They are selectively replication-competent viruses that propagate only in actively dividing tumor cells but not in normal cells and, as a result, destroy the tumor cells by consequence of lytic infection. At least six different oncolytic herpes simplex viruses (oHSVs) have undergone clinical trials worldwide to date, and they have demonstrated an excellent safety profile and intimations of efficacy. The first pivotal Phase III trial with an oHSV, talimogene laherparepvec (T-Vec [OncoVex(GM-CSF)]), is almost complete, with extremely positive early results reported. Intuitively, therapeutically beneficial interactions between oHSV and chemotherapeutic and targeted therapeutic drugs would be limited as the virus requires actively dividing cells for maximum replication efficiency and most anticancer agents are cytotoxic or cytostatic. However, combinations of such agents display a range of responses, with antagonistic, additive, or, perhaps most surprisingly, synergistic enhancement of antitumor activity. When synergistic interactions in cancer cell killing are observed, chemotherapy dose reductions that achieve the same overall efficacy may be possible, resulting in a valuable reduction of adverse side effects. Therefore, the combination of an oHSV with "standard-of-care" drugs makes a logical and reasonable approach to improved therapy, and the addition of a targeted oncolytic therapy with "standard-of-care" drugs merits further investigation, both preclinically and in the clinic. Numerous publications report such studies of oncolytic HSV in combination with other drugs, and we review their findings here. Viral interactions with cellular hosts are complex and frequently involve intracellular signaling networks, thus creating diverse opportunities for synergistic or additive combinations with many anticancer drugs. We discuss potential mechanisms that may lead to synergistic interactions.
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Affiliation(s)
- Lynne Braidwood
- Virttu Biologics Ltd, Department of Neurology, Southern General Hospital, Glasgow, UK
| | - Sheila V Graham
- MRC-University of Glasgow Centre for Virus Research, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Jarrett Building, University of Glasgow, Glasgow, UK
| | - Alex Graham
- Virttu Biologics Ltd, Department of Neurology, Southern General Hospital, Glasgow, UK
| | - Joe Conner
- Virttu Biologics Ltd, Department of Neurology, Southern General Hospital, Glasgow, UK
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Lazear E, Whitbeck JC, Zuo Y, Carfí A, Cohen GH, Eisenberg RJ, Krummenacher C. Induction of conformational changes at the N-terminus of herpes simplex virus glycoprotein D upon binding to HVEM and nectin-1. Virology 2013; 448:185-95. [PMID: 24314649 DOI: 10.1016/j.virol.2013.10.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 09/07/2013] [Accepted: 10/12/2013] [Indexed: 11/15/2022]
Abstract
Herpes simplex virus entry is initiated by glycoprotein D (gD) binding to a cellular receptor, such as HVEM or nectin-1. gD is activated by receptor-induced displacement of the C-terminus from the core of the glycoprotein. Binding of HVEM requires the formation of an N-terminal hairpin loop of gD; once formed this loop masks the nectin-1 binding site on the core of gD. We found that HVEM and nectin-1 exhibit non-reciprocal competition for binding to gD. The N-terminus of gD does not spontaneously form a stable hairpin in the absence of receptor and HVEM does not appear to rely on a pre-existing hairpin for binding to gD(3C-38C) mutants. However, HVEM function is affected by mutations that impair optimal hairpin formation. Furthermore, nectin-1 induces a new conformation of the N-terminus of gD. We conclude that the conformation of the N-terminus of gD is actively modified by the direct action of both receptors.
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Affiliation(s)
- Eric Lazear
- Department of Microbiology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Li H, Nakashima H, Decklever TD, Nace RA, Russell SJ. HSV-NIS, an oncolytic herpes simplex virus type 1 encoding human sodium iodide symporter for preclinical prostate cancer radiovirotherapy. Cancer Gene Ther 2013; 20:478-85. [PMID: 23868101 PMCID: PMC3747331 DOI: 10.1038/cgt.2013.43] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 06/14/2013] [Indexed: 12/15/2022]
Abstract
Several clinical trials have shown that oncolytic herpes simplex virus type 1 (oHSV-1) can be safely administered to patients. However, virus replication in tumor tissue has generally not been monitored in these oHSV clinical trials, and the data suggest that its oncolytic potency needs to be improved. To facilitate noninvasive monitoring of the in vivo spread of an oHSV and to increase its antitumor efficacy, the gene coding for human sodium iodide symporter (NIS) was incorporated into a recombinant oHSV genome and the corresponding virus (oHSV-NIS) rescued in our laboratory. Our data demonstrate that a human prostate cancer cell line, LNCap, efficiently concentrates radioactive iodine after the cells have been infected in vitro or in vivo. In vivo replication of oHSV-NIS in tumors was noninvasively monitored by computed tomography/single-photon emission computed tomography imaging of the biodistribution of pertechnetate and was confirmed. LNCap xenografts in nude mice were eradicated by intratumoral administration of oHSV-NIS. Systemic administration of oHSV-NIS prolonged the survival of tumor-bearing mice, and the therapeutic effect was further enhanced by administration of 131I after the intratumoral spread of the virus had peaked. oHSV-NIS has the potential to substantially enhance the outcomes of standard therapy for patients with prostate cancer.
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Affiliation(s)
- H Li
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Nygårdas M, Paavilainen H, Müther N, Nagel CH, Röyttä M, Sodeik B, Hukkanen V. A herpes simplex virus-derived replicative vector expressing LIF limits experimental demyelinating disease and modulates autoimmunity. PLoS One 2013; 8:e64200. [PMID: 23700462 PMCID: PMC3659099 DOI: 10.1371/journal.pone.0064200] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 04/09/2013] [Indexed: 12/29/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1) has properties that can be exploited for the development of gene therapy vectors. The neurotropism of HSV enables delivery of therapeutic genes to the nervous system. Using a bacterial artificial chromosome (BAC), we constructed an HSV-1(17+)-based replicative vector deleted of the neurovirulence gene γ134.5, and expressing leukemia inhibitory factor (LIF) as a transgene for treatment of experimental autoimmune encephalomyelitis (EAE). EAE is an inducible T-cell mediated autoimmune disease of the central nervous system (CNS) and is used as an animal model for multiple sclerosis. Demyelination and inflammation are hallmarks of both diseases. LIF is a cytokine that has the potential to limit demyelination and oligodendrocyte loss in CNS autoimmune diseases and to affect the T-cell mediated autoimmune response. In this study SJL/J mice, induced for EAE, were treated with a HSV-LIF vector intracranially and the subsequent changes in disease parameters and immune responses during the acute disease were investigated. Replicating HSV-LIF and its DNA were detected in the CNS during the acute infection, and the vector spread to the spinal cord but was non-virulent. The HSV-LIF significantly ameliorated the EAE and contributed to a higher number of oligodendrocytes in the brains when compared to untreated mice. The HSV-LIF therapy also induced favorable changes in the expression of immunoregulatory cytokines and T-cell population markers in the CNS during the acute disease. These data suggest that BAC-derived HSV vectors are suitable for gene therapy of CNS disease and can be used to test the therapeutic potential of immunomodulatory factors for treatment of EAE.
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Affiliation(s)
- Michaela Nygårdas
- Department of Virology, University of Turku, Turku, Finland
- * E-mail: (MN); (VH)
| | | | - Nadine Müther
- Institute of Virology, Hannover Medical School, Hannover, Germany
| | | | - Matias Röyttä
- Department of Pathology, University of Turku, Turku, Finland
| | - Beate Sodeik
- Institute of Virology, Hannover Medical School, Hannover, Germany
| | - Veijo Hukkanen
- Department of Virology, University of Turku, Turku, Finland
- * E-mail: (MN); (VH)
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Advance in herpes simplex viruses for cancer therapy. SCIENCE CHINA-LIFE SCIENCES 2013; 56:298-305. [PMID: 23564184 DOI: 10.1007/s11427-013-4466-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 02/27/2013] [Indexed: 02/07/2023]
Abstract
Oncolytic virotherapy is an attractive approach that uses live viruses to selectively kill cancer cells. Oncolytic viruses can be genetically engineered to induce cell lyses through virus replication and cytotoxic protein expression. Herpes simplex virus (HSV) has become one of the most widely clinically used oncolytic agent. Various types of HSV have been studied in basic or clinical research. Combining oncolytic virotherapy with chemotherapy or radiotherapy generally produces synergic action with unclear molecular mechanisms. Arming HSV with therapeutic transgenes is a promising strategy and can be used to complement conventional therapies. As an efficient gene delivery system, HSV has been successfully used to deliver various immunomodulatory molecules. Arming HSV with therapeutic genes merits further investigation for potential clinical application.
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Nanni P, Gatta V, Menotti L, De Giovanni C, Ianzano M, Palladini A, Grosso V, Dall'Ora M, Croci S, Nicoletti G, Landuzzi L, Iezzi M, Campadelli-Fiume G, Lollini PL. Preclinical therapy of disseminated HER-2⁺ ovarian and breast carcinomas with a HER-2-retargeted oncolytic herpesvirus. PLoS Pathog 2013; 9:e1003155. [PMID: 23382683 PMCID: PMC3561254 DOI: 10.1371/journal.ppat.1003155] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 12/10/2012] [Indexed: 12/16/2022] Open
Abstract
Oncolytic viruses aim to specifically kill tumor cells. A major challenge is the effective targeting of disseminated tumors in vivo. We retargeted herpes simplex virus (HSV) tropism to HER-2 oncoprotein p185, overexpressed in ovary and breast cancers. The HER-2-retargeted R-LM249 exclusively infects and kills tumor cells expressing high levels of human HER-2. Here, we assessed the efficacy of systemically i.p. delivered R-LM249 against disseminated tumors in mouse models that recapitulate tumor spread to the peritoneum in women. The human ovarian carcinoma SK-OV-3 cells implanted intraperitoneally (i.p.) in immunodeficient Rag2⁻/⁻;Il2rg⁻/⁻ mice gave rise to a progressive peritoneal carcinomatosis which mimics the fatal condition in advanced human patients. I.p. administration of R-LM249 strongly inhibited carcinomatosis, resulting in 60% of mice free from peritoneal diffusion, and 95% reduction in the total weight of neoplastic nodules. Intraperitoneal metastases are a common outcome in breast cancer: i.p. administration of R-LM249 strongly inhibited the growth of ovarian metastases of HER-2+ MDA-MB-453 breast cells. Brain metastases were also reduced. Cumulatively, upon i.p. administration the HER-2-redirected oncolytic HSV effectively reduced the growth of ovarian and breast carcinoma disseminated to the peritoneal cavity.
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Affiliation(s)
- Patrizia Nanni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Valentina Gatta
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Laura Menotti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Carla De Giovanni
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Marianna Ianzano
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Arianna Palladini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Valentina Grosso
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Massimiliano Dall'Ora
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Stefania Croci
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | | | | | - Manuela Iezzi
- CESI Aging Research Center, G. D'Annunzio University, Chieti, Italy
| | - Gabriella Campadelli-Fiume
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
- * E-mail:
| | - Pier-Luigi Lollini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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Xu C, Li H, Su C, Li Z. Viral therapy for pancreatic cancer: tackle the bad guys with poison. Cancer Lett 2013; 333:1-8. [PMID: 23354590 DOI: 10.1016/j.canlet.2013.01.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/15/2013] [Accepted: 01/18/2013] [Indexed: 12/15/2022]
Abstract
Pancreatic cancer is one of the most devastating diseases with very poor prognosis. Only a small proportion is curable by surgical resection, whilst standard chemotherapy for patients with advanced disease has only modest effect with substantial toxicity. Therefore, there is an urgent need for the development of novel therapeutic approaches to improve the patient outcome. Recently the viral therapy is emerging as a novel effective therapeutic approach for cancer with the potential to selectively treat both primary tumor and metastatic lesions. This review provides an overview of the current status of viral treatment for pancreatic cancer, both in the laboratories and in clinical settings.
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Affiliation(s)
- Can Xu
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
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