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Stergiopoulos GM, Concilio SC, Galanis E. An Update on the Clinical Status, Challenges, and Future Directions of Oncolytic Virotherapy for Malignant Gliomas. Curr Treat Options Oncol 2024:10.1007/s11864-024-01211-6. [PMID: 38896326 DOI: 10.1007/s11864-024-01211-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2024] [Indexed: 06/21/2024]
Abstract
OPINION STATEMENT Malignant gliomas are common central nervous system tumors that pose a significant clinical challenge due to the lack of effective treatments. Glioblastoma (GBM), a grade 4 malignant glioma, is the most prevalent primary malignant brain tumor and is associated with poor prognosis. Current clinical trials are exploring various strategies to combat GBM, with oncolytic viruses (OVs) appearing particularly promising. In addition to ongoing and recently completed clinical trials, one OV (Teserpaturev, Delytact®) received provisional approval for GBM treatment in Japan. OVs are designed to selectively target and eliminate cancer cells while promoting changes in the tumor microenvironment that can trigger and support long-lasting anti-tumor immunity. OVs offer the potential to remodel the tumor microenvironment and reverse systemic immune exhaustion. Additionally, an increasing number of OVs are armed with immunomodulatory payloads or combined with immunotherapy approaches in an effort to promote anti-tumor responses in a tumor-targeted manner. Recently completed oncolytic virotherapy trials can guide the way for future treatment individualization through patient preselection, enhancing the likelihood of achieving the highest possible clinical success. These trials also offer valuable insight into the numerous challenges inherent in malignant glioma treatment, some of which OVs can help overcome.
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Affiliation(s)
| | | | - Evanthia Galanis
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Oncology, Mayo Clinic, Rochester, MN, USA.
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2
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Rojas JJ, Van Hoecke L, Conesa M, Bueno-Merino C, Del Canizo A, Riederer S, Barcia M, Brosinski K, Lehmann MH, Volz A, Saelens X, Sutter G. A new MVA ancestor-derived oncolytic vaccinia virus induces immunogenic tumor cell death and robust antitumor immune responses. Mol Ther 2024:S1525-0016(24)00316-2. [PMID: 38734899 DOI: 10.1016/j.ymthe.2024.05.014] [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: 10/10/2023] [Revised: 04/10/2024] [Accepted: 05/09/2024] [Indexed: 05/13/2024] Open
Abstract
Vaccinia viruses (VACVs) are versatile therapeutic agents and different features of various VACV strains allow for a broad range of therapeutic applications. Modified VACV Ankara (MVA) is a particularly altered VACV strain that is highly immunogenic, incapable of replicating in mammalian hosts, and broadly used as a safe vector for vaccination. Alternatively, Western Reserve (WR) or Copenhagen (Cop) are VACV strains that efficiently replicate in cancer cells and, therefore, are used to develop oncolytic viruses. However, the immune evasion capacity of WR or Cop hinders their ability to elicit antitumor immune responses, which is crucial for efficacy in the clinic. Here, we describe a new VACV strain named Immune-Oncolytic VACV Ankara (IOVA), which combines efficient replication in cancer cells with induction of immunogenic tumor cell death (ICD). IOVA was engineered from an MVA ancestor and shows superior cytotoxicity in tumor cells. In addition, the IOVA genome incorporates mutations that lead to massive fusogenesis of tumor cells, which contributes to improved antitumor effects. In syngeneic mouse tumor models, the induction of ICD results in robust antitumor immunity directed against tumor neo-epitopes and eradication of large established tumors. These data present IOVA as an improved immunotherapeutic oncolytic vector.
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Affiliation(s)
- Juan J Rojas
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona - UB, 08907 L'Hospitalet de Llobregat, Spain; Immunity, Inflammation, and Cancer Group, Oncobell Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, 08908 L'Hospitalet de Llobregat, Spain; Division of Virology, Institute for Infection Medicine and Zoonoses, Department of Veterinary Sciences, LMU Munich, 85764 Oberschleiβheim, Germany.
| | - Lien Van Hoecke
- VIB Center for Inflammation Research, VIB, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Miquel Conesa
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona - UB, 08907 L'Hospitalet de Llobregat, Spain; Immunity, Inflammation, and Cancer Group, Oncobell Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, 08908 L'Hospitalet de Llobregat, Spain
| | - Carmen Bueno-Merino
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona - UB, 08907 L'Hospitalet de Llobregat, Spain; Immunity, Inflammation, and Cancer Group, Oncobell Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, 08908 L'Hospitalet de Llobregat, Spain
| | - Ana Del Canizo
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona - UB, 08907 L'Hospitalet de Llobregat, Spain; Immunity, Inflammation, and Cancer Group, Oncobell Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, 08908 L'Hospitalet de Llobregat, Spain
| | - Stephanie Riederer
- Division of Virology, Institute for Infection Medicine and Zoonoses, Department of Veterinary Sciences, LMU Munich, 85764 Oberschleiβheim, Germany
| | - Maria Barcia
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona - UB, 08907 L'Hospitalet de Llobregat, Spain; Immunity, Inflammation, and Cancer Group, Oncobell Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, 08908 L'Hospitalet de Llobregat, Spain
| | - Katrin Brosinski
- Division of Virology, Institute for Infection Medicine and Zoonoses, Department of Veterinary Sciences, LMU Munich, 85764 Oberschleiβheim, Germany
| | - Michael H Lehmann
- Division of Virology, Institute for Infection Medicine and Zoonoses, Department of Veterinary Sciences, LMU Munich, 85764 Oberschleiβheim, Germany
| | - Asisa Volz
- Division of Virology, Institute for Infection Medicine and Zoonoses, Department of Veterinary Sciences, LMU Munich, 85764 Oberschleiβheim, Germany; Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Xavier Saelens
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; VIB Center for Medical Biotechnology, VIB, 9052 Ghent, Belgium; Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium
| | - Gerd Sutter
- Division of Virology, Institute for Infection Medicine and Zoonoses, Department of Veterinary Sciences, LMU Munich, 85764 Oberschleiβheim, Germany; German Center for Infection Research (DZIF), Partner Site Munich, 80539 Munich, Germany
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3
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Lê H, Deforges J, Cutolo P, Lamarque A, Hua G, Lindner V, Jain S, Balloul JM, Benkirane-Jessel N, Quéméneur E. Patient-derived tumoroids and proteomic signatures: tools for early drug discovery. Front Immunol 2024; 15:1379613. [PMID: 38698850 PMCID: PMC11063793 DOI: 10.3389/fimmu.2024.1379613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/14/2024] [Indexed: 05/05/2024] Open
Abstract
Onco-virotherapy is an emergent treatment for cancer based on viral vectors. The therapeutic activity is based on two different mechanisms including tumor-specific oncolysis and immunostimulatory properties. In this study, we evaluated onco-virotherapy in vitro responses on immunocompetent non-small cell lung cancer (NSCLC) patient-derived tumoroids (PDTs) and healthy organoids. PDTs are accurate tools to predict patient's clinical responses at the in vitro stage. We showed that onco-virotherapy could exert specific antitumoral effects by producing a higher number of viral particles in PDTs than in healthy organoids. In the present work, we used multiplex protein screening, based on proximity extension assay to highlight different response profiles. Our results pointed to the increase of proteins implied in T cell activation, such as IFN-γ following onco-virotherapy treatment. Based on our observation, oncolytic viruses-based therapy responders are dependent on several factors: a high PD-L1 expression, which is a biomarker of greater immune response under immunotherapies, and the number of viral particles present in tumor tissue, which is dependent to the metabolic state of tumoral cells. Herein, we highlight the use of PDTs as an alternative in vitro model to assess patient-specific responses to onco-virotherapy at the early stage of the preclinical phases.
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Affiliation(s)
- Hélène Lê
- Transgene S.A., Illkirch–Graffenstaden, France
- INSERM UMR1260, Regenerative Nanomedicine, Strasbourg, France
| | | | | | | | - Guoqiang Hua
- INSERM UMR1260, Regenerative Nanomedicine, Strasbourg, France
| | - Véronique Lindner
- INSERM UMR1260, Regenerative Nanomedicine, Strasbourg, France
- Department of Pathology, Hopitaux Universitaires de Strasbourg, Strasbourg, France
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4
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Kurokawa C, Agrawal S, Mitra A, Galvani E, Burke S, Varshine A, Rothstein R, Schifferli K, Monks NR, Foloppe J, Silvestre N, Quemeneur E, Demeusoit C, Kleinpeter P, Sapra P, Barrett C, Hammond SA, Kelly EJ, Laliberte J, Durham NM, Oberst M, Broggi MA. Mediation of antitumor activity by AZD4820 oncolytic vaccinia virus encoding IL-12. MOLECULAR THERAPY. ONCOLOGY 2024; 32:200758. [PMID: 38596304 PMCID: PMC10869731 DOI: 10.1016/j.omton.2023.200758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/26/2023] [Accepted: 11/22/2023] [Indexed: 04/11/2024]
Abstract
Oncolytic viruses are engineered to selectively kill tumor cells and have demonstrated promising results in early-phase clinical trials. To further modulate the innate and adaptive immune system, we generated AZD4820, a vaccinia virus engineered to express interleukin-12 (IL-12), a potent cytokine involved in the activation of natural killer (NK) and T cells and the reprogramming of the tumor immune microenvironment. Testing in cultured human tumor cell lines demonstrated broad in vitro oncolytic activity and IL-12 transgene expression. A surrogate virus expressing murine IL-12 demonstrated antitumor activity in both MC38 and CT26 mouse syngeneic tumor models that responded poorly to immune checkpoint inhibition. In both models, AZD4820 significantly upregulated interferon-gamma (IFN-γ) relative to control mice treated with oncolytic vaccinia virus (VACV)-luciferase. In the CT26 study, 6 of 10 mice had a complete response after treatment with AZD4820 murine surrogate, whereas control VACV-luciferase-treated mice had 0 of 10 complete responders. AZD4820 treatment combined with anti-PD-L1 blocking antibody augmented tumor-specific T cell immunity relative to monotherapies. These findings suggest that vaccinia virus delivery of IL-12, combined with immune checkpoint blockade, elicits antitumor immunity in tumors that respond poorly to immune checkpoint inhibitors.
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Affiliation(s)
- Cheyne Kurokawa
- Virology and Vaccine Discovery, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Sonia Agrawal
- Translational Medicine, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Abhisek Mitra
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Elena Galvani
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Cambridge, UK
| | - Shannon Burke
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Cambridge, UK
| | - Ankita Varshine
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Raymond Rothstein
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Kevin Schifferli
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Noel R. Monks
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Johann Foloppe
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | | | - Eric Quemeneur
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | | | | | - Puja Sapra
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Carl Barrett
- Translational Medicine, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Scott A. Hammond
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Elizabeth J. Kelly
- Clinical Virology, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Jason Laliberte
- Virology and Vaccine Discovery, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Nicholas M. Durham
- Translational Medicine, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Michael Oberst
- Biologics Engineering and Targeted Delivery, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Maria A.S. Broggi
- Translational Medicine, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
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5
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Obrador E, Moreno-Murciano P, Oriol-Caballo M, López-Blanch R, Pineda B, Gutiérrez-Arroyo JL, Loras A, Gonzalez-Bonet LG, Martinez-Cadenas C, Estrela JM, Marqués-Torrejón MÁ. Glioblastoma Therapy: Past, Present and Future. Int J Mol Sci 2024; 25:2529. [PMID: 38473776 DOI: 10.3390/ijms25052529] [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: 12/23/2023] [Revised: 02/10/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
Glioblastoma (GB) stands out as the most prevalent and lethal form of brain cancer. Although great efforts have been made by clinicians and researchers, no significant improvement in survival has been achieved since the Stupp protocol became the standard of care (SOC) in 2005. Despite multimodality treatments, recurrence is almost universal with survival rates under 2 years after diagnosis. Here, we discuss the recent progress in our understanding of GB pathophysiology, in particular, the importance of glioma stem cells (GSCs), the tumor microenvironment conditions, and epigenetic mechanisms involved in GB growth, aggressiveness and recurrence. The discussion on therapeutic strategies first covers the SOC treatment and targeted therapies that have been shown to interfere with different signaling pathways (pRB/CDK4/RB1/P16ink4, TP53/MDM2/P14arf, PI3k/Akt-PTEN, RAS/RAF/MEK, PARP) involved in GB tumorigenesis, pathophysiology, and treatment resistance acquisition. Below, we analyze several immunotherapeutic approaches (i.e., checkpoint inhibitors, vaccines, CAR-modified NK or T cells, oncolytic virotherapy) that have been used in an attempt to enhance the immune response against GB, and thereby avoid recidivism or increase survival of GB patients. Finally, we present treatment attempts made using nanotherapies (nanometric structures having active anti-GB agents such as antibodies, chemotherapeutic/anti-angiogenic drugs or sensitizers, radionuclides, and molecules that target GB cellular receptors or open the blood-brain barrier) and non-ionizing energies (laser interstitial thermal therapy, high/low intensity focused ultrasounds, photodynamic/sonodynamic therapies and electroporation). The aim of this review is to discuss the advances and limitations of the current therapies and to present novel approaches that are under development or following clinical trials.
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Affiliation(s)
- Elena Obrador
- Scientia BioTech S.L., 46002 Valencia, Spain
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
| | | | - María Oriol-Caballo
- Scientia BioTech S.L., 46002 Valencia, Spain
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
| | - Rafael López-Blanch
- Scientia BioTech S.L., 46002 Valencia, Spain
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
| | - Begoña Pineda
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
| | | | - Alba Loras
- Department of Medicine, Jaume I University of Castellon, 12071 Castellon, Spain
| | - Luis G Gonzalez-Bonet
- Department of Neurosurgery, Castellon General University Hospital, 12004 Castellon, Spain
| | | | - José M Estrela
- Scientia BioTech S.L., 46002 Valencia, Spain
- Department of Physiology, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
- Department of Physiology, Faculty of Pharmacy, University of Valencia, 46100 Burjassot, Spain
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6
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Ageenko A, Vasileva N, Richter V, Kuligina E. Combination of Oncolytic Virotherapy with Different Antitumor Approaches against Glioblastoma. Int J Mol Sci 2024; 25:2042. [PMID: 38396720 PMCID: PMC10889383 DOI: 10.3390/ijms25042042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Glioblastoma is one of the most malignant and aggressive tumors of the central nervous system. Despite the standard therapy consisting of maximal surgical resection and chemo- and radiotherapy, the median survival of patients with this diagnosis is about 15 months. Oncolytic virus therapy is one of the promising areas for the treatment of malignant neoplasms. In this review, we have focused on emphasizing recent achievements in virotherapy, both as a monotherapy and in combination with other therapeutic schemes to improve survival rate and quality of life among patients with glioblastoma.
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Affiliation(s)
- Alisa Ageenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrentiev Ave. 8, 630090 Novosibirsk, Russia
| | - Natalia Vasileva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrentiev Ave. 8, 630090 Novosibirsk, Russia
- LLC "Oncostar", R&D Department, Ingenernaya Street 23, 630090 Novosibirsk, Russia
| | - Vladimir Richter
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrentiev Ave. 8, 630090 Novosibirsk, Russia
| | - Elena Kuligina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Akad. Lavrentiev Ave. 8, 630090 Novosibirsk, Russia
- LLC "Oncostar", R&D Department, Ingenernaya Street 23, 630090 Novosibirsk, Russia
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Shah S. Novel Therapies in Glioblastoma Treatment: Review of Glioblastoma; Current Treatment Options; and Novel Oncolytic Viral Therapies. Med Sci (Basel) 2023; 12:1. [PMID: 38249077 PMCID: PMC10801585 DOI: 10.3390/medsci12010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/15/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024] Open
Abstract
One of the most prevalent primary malignant brain tumors is glioblastoma (GB). About 6 incidents per 100,000 people are reported annually. Most frequently, these tumors are linked to a poor prognosis and poor quality of life. There has been little advancement in the treatment of GB. In recent years, some innovative medicines have been tested for the treatment of newly diagnosed cases of GB and recurrent cases of GB. Surgery, radiotherapy, and alkylating chemotherapy are all common treatments for GB. A few of the potential alternatives include immunotherapy, tumor-treating fields (TTFs), and medications that target specific cellular receptors. To provide new multimodal therapies that focus on the molecular pathways implicated in tumor initiation and progression in GB, novel medications, delivery technologies, and immunotherapy approaches are being researched. Of these, oncolytic viruses (OVs) are among the most recent. Coupling OVs with certain modern treatment approaches may have significant benefits for GB patients. Here, we discuss several OVs and how they work in conjunction with other therapies, as well as virotherapy for GB. The study was based on the PRISMA guidelines. Systematic retrieval of information was performed on PubMed. A total of 307 articles were found in a search on oncolytic viral therapies for glioblastoma. Out of these 83 articles were meta-analyses, randomized controlled trials, reviews, and systematic reviews. A total of 42 articles were from the years 2018 to 2023. Appropriate studies were isolated, and important information from each of them was understood and entered into a database from which the information was used in this article. One of the most prevalent malignant brain tumors is still GB. Significant promise and opportunity exist for oncolytic viruses in the treatment of GB and in boosting immune response. Making the most of OVs in the treatment of GB requires careful consideration and evaluation of a number of its application factors.
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Affiliation(s)
- Siddharth Shah
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA
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Remy C, Pintado E, Dunlop M, Schön S, Kleinpeter P, Rozanes H, Fend L, Brandely R, Geist M, Suhner D, Winter E, Silvestre N, Huguet C, Fitzgerald P, Quéméneur E, Marchand JB. Design and selection of anti-PD-L1 single-domain antibody and tumor necrosis factor superfamily ligands for an optimal vectorization in an oncolytic virus. Front Bioeng Biotechnol 2023; 11:1247802. [PMID: 38053848 PMCID: PMC10694795 DOI: 10.3389/fbioe.2023.1247802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/24/2023] [Indexed: 12/07/2023] Open
Abstract
Arming oncolytic viruses with transgenes encoding immunomodulators improves their therapeutic efficacy by enhancing and/or sustaining the innate and adaptive anti-tumoral immune responses. We report here the isolation, selection, and vectorization of a blocking anti-human PDL1 single-domain antibody (sdAb) isolated from PDL1-immunized alpacas. Several formats of this sdAb were vectorized into the vaccinia virus (VV) and evaluated for their programmed cell death protein 1 (PD1)/PD1 ligand (PDL1) blocking activity in the culture medium of tumor cells infected in vitro. In those conditions, VV-encoded homodimeric sdAb generated superior PDL1 blocking activity compared to a benchmark virus encoding full-length avelumab. The sdAb was further used to design simple, secreted, and small tumor necrosis factor superfamily (TNFSF) fusions with the ability to engage their cognate receptors (TNFRSF) only in the presence of PDL1-positive cells. Finally, PDL1-independent alternatives of TNFRSF agonists were also constructed by fusing different variants of surfactant protein-D (SP-D) oligomerization domains with TNFSF ectodomains. An optimal SP-D-CD40L fusion with an SP-D collagen domain reduced by 80% was identified by screening with a transfection/infection method where poxvirus transfer plasmids and vaccinia virus were successively introduced into the same cell. However, once vectorized in VV, this construct had a much lower CD40 agonist activity compared to the SP-D-CD40L construct, which is completely devoid of the collagen domain that was finally selected. This latest result highlights the importance of working with recombinant viruses early in the payload selection process. Altogether, these results bring several complementary solutions to arm oncolytic vectors with powerful immunomodulators to improve their immune-based anti-tumoral activity.
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Buntval K, Dobrovolny HM. Modeling of oncolytic viruses in a heterogeneous cell population to predict spread into non-cancerous cells. Comput Biol Med 2023; 165:107362. [PMID: 37633084 DOI: 10.1016/j.compbiomed.2023.107362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 08/06/2023] [Accepted: 08/12/2023] [Indexed: 08/28/2023]
Abstract
New cancer treatment modalities that limit patient discomfort need to be developed. One possible new therapy is the use of oncolytic (cancer-killing) viruses. It is only recently that our ability to manipulate viral genomes has allowed us to consider deliberately infecting cancer patients with viruses. One key consideration is to ensure that the virus exclusively targets cancer cells and does not harm nearby non-cancerous cells. Here, we use a mathematical model of viral infection to determine the characteristics a virus would need to have in order to eradicate a tumor, but leave non-cancerous cells untouched. We conclude that the virus must differ in its ability to infect the two different cell types, with the infection rate of non-cancerous cells needing to be less than one hundredth of the infection rate of cancer cells. Differences in viral production rate or infectious cell death rate alone are not sufficient to protect non-cancerous cells.
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Affiliation(s)
- Karan Buntval
- SUNY Upstate Medical University, Syracuse, NY, United States of America; Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX, United States of America
| | - Hana M Dobrovolny
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX, United States of America.
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Béguin J, Laloy E, Cochin S, Gantzer M, Farine I, Pichon C, Moreau B, Foloppe J, Balloul JM, Machon C, Guitton J, Tierny D, Klonjkowski B, Quéméneur E, Maurey C, Erbs P. Oncolytic virotherapy with intratumoral injection of vaccinia virus TG6002 and 5-fluorocytosine administration in dogs with malignant tumors. Mol Ther Oncolytics 2023; 30:103-116. [PMID: 37635744 PMCID: PMC10448017 DOI: 10.1016/j.omto.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/17/2023] [Indexed: 08/29/2023] Open
Abstract
TG6002 is an oncolytic vaccinia virus expressing FCU1 protein, which converts 5-fluorocytosine into 5-fluorouracil. The study objectives were to assess tolerance, viral replication, 5-fluorouracil synthesis, and tumor microenvironment modifications to treatment in dogs with spontaneous malignant tumors. Thirteen dogs received one to three weekly intratumoral injections of TG6002 and 5-fluorocytosine. The viral genome was assessed in blood and tumor biopsies by qPCR. 5-Fluorouracil concentrations were measured in serum and tumor biopsies by liquid chromatography or high-resolution mass spectrometry. Histological and immunohistochemical analyses were performed. The viral genome was detected in blood (7/13) and tumor biopsies (4/11). Viral replication was suspected in 6/13 dogs. The median intratumoral concentration of 5-fluorouracil was 314 pg/mg. 5-Fluorouracil was not detected in the blood. An increase in necrosis (6/9) and a downregulation of intratumoral regulatory T lymphocytes (6/6) were observed. Viral replication, 5-fluorouracil synthesis, and tumor microenvironment changes were more frequently observed with higher TG6002 doses. This study confirmed the replicative properties, targeted chemotherapy synthesis, and reversion of the immunosuppressive tumor microenvironment in dogs with spontaneous malignant tumors treated with TG6002 and 5-fluorocytosine.
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Affiliation(s)
- Jérémy Béguin
- Transgene, 67405 Illkirch-Graffenstaden, France
- UMR Virologie, INRAE, École Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, 94700 Maisons-Alfort, France
- Department of Internal Medicine, École Nationale Vétérinaire d’Alfort, Université Paris-Est, 94700 Maisons-Alfort, France
| | - Eve Laloy
- UMR Virologie, INRAE, École Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, 94700 Maisons-Alfort, France
- Anatomical Pathology Unit, Biopôle, École Nationale Vétérinaire d’Alfort, Université Paris-Est, 94700 Maisons-Alfort, France
| | | | | | | | | | | | | | | | - Christelle Machon
- Service de Biochimie et pharmacotoxicologie, Hôpital Lyon-Sud, Hospices Civils de Lyon, 69310, France
| | - Jérôme Guitton
- Service de Biochimie et pharmacotoxicologie, Hôpital Lyon-Sud, Hospices Civils de Lyon, 69310, France
| | | | - Bernard Klonjkowski
- UMR Virologie, INRAE, École Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, 94700 Maisons-Alfort, France
| | | | - Christelle Maurey
- Department of Internal Medicine, École Nationale Vétérinaire d’Alfort, Université Paris-Est, 94700 Maisons-Alfort, France
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11
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Houel A, Foloppe J, Dieu-Nosjean MC. Harnessing the power of oncolytic virotherapy and tertiary lymphoid structures to amplify antitumor immune responses in cancer patients. Semin Immunol 2023; 69:101796. [PMID: 37356421 DOI: 10.1016/j.smim.2023.101796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 06/14/2023] [Accepted: 06/14/2023] [Indexed: 06/27/2023]
Abstract
Tertiary lymphoid structures (TLS) are ectopic aggregates of immune cells that develop in non-lymphoid tissues under persistent inflammation. Since their presence has been associated with a better prognosis in cancer patients, modulating TLS formation is being part of new challenges in immunotherapy. Although mechanisms underlying TLS genesis are still not fully understood, different strategies have been developed in preclinical models to induce their formation and ultimately enhance antitumor responses. Herein, we will discuss a new approach that would consist in using oncolytic viruses (OV). These viruses have the unique feature to preferentially infect, replicate in and kill cancer cells. Their immunoadjuvant property, their use as a vector of therapeutic molecules and their selectivity for cancer cells, make them an attractive strategy to induce TLS in the tumor microenvironment. This review will examine the current knowledge about TLS neogenesis, approaches for inducing them, and relevance of using OV for this purpose, especially in combination with immunotherapy such as immune checkpoint blockade.
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Affiliation(s)
- Ana Houel
- UMRS1135 Sorbonne Université, Paris, France; Inserm U1135, Paris, France; Team " Immune Microenvironment and Immunotherapy ", Centre of Immunology and Microbial Infections (Cimi), Faculté de Médecine Sorbonne Université, Paris, France; Transgene, Illkirch-Graffenstaden, France
| | | | - Marie-Caroline Dieu-Nosjean
- UMRS1135 Sorbonne Université, Paris, France; Inserm U1135, Paris, France; Team " Immune Microenvironment and Immunotherapy ", Centre of Immunology and Microbial Infections (Cimi), Faculté de Médecine Sorbonne Université, Paris, France.
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12
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Li M, Zhang M, Ye Q, Liu Y, Qian W. Preclinical and clinical trials of oncolytic vaccinia virus in cancer immunotherapy: a comprehensive review. Cancer Biol Med 2023; 20:j.issn.2095-3941.2023.0202. [PMID: 37615308 PMCID: PMC10546091 DOI: 10.20892/j.issn.2095-3941.2023.0202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/19/2023] [Indexed: 08/25/2023] Open
Abstract
Oncolytic virotherapy has emerged as a promising treatment for human cancers owing to an ability to elicit curative effects via systemic administration. Tumor cells often create an unfavorable immunosuppressive microenvironment that degrade viral structures and impede viral replication; however, recent studies have established that viruses altered via genetic modifications can serve as effective oncolytic agents to combat hostile tumor environments. Specifically, oncolytic vaccinia virus (OVV) has gained popularity owing to its safety, potential for systemic delivery, and large gene insertion capacity. This review highlights current research on the use of engineered mutated viruses and gene-armed OVVs to reverse the tumor microenvironment and enhance antitumor activity in vitro and in vivo, and provides an overview of ongoing clinical trials and combination therapies. In addition, we discuss the potential benefits and drawbacks of OVV as a cancer therapy, and explore different perspectives in this field.
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Affiliation(s)
- Mengyuan Li
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Minghuan Zhang
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Qian Ye
- Hangzhou Rong-Gu Biotechnology Limited Company, Hangzhou 310056, China
| | - Yunhua Liu
- Department of Pathology & Pathophysiology and Department of Surgical Oncology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Wenbin Qian
- Department of Hematology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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13
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Kumari S, Gupta R, Ambasta RK, Kumar P. Multiple therapeutic approaches of glioblastoma multiforme: From terminal to therapy. Biochim Biophys Acta Rev Cancer 2023; 1878:188913. [PMID: 37182666 DOI: 10.1016/j.bbcan.2023.188913] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/24/2023] [Accepted: 05/10/2023] [Indexed: 05/16/2023]
Abstract
Glioblastoma multiforme (GBM) is an aggressive brain cancer showing poor prognosis. Currently, treatment methods of GBM are limited with adverse outcomes and low survival rate. Thus, advancements in the treatment of GBM are of utmost importance, which can be achieved in recent decades. However, despite aggressive initial treatment, most patients develop recurrent diseases, and the overall survival rate of patients is impossible to achieve. Currently, researchers across the globe target signaling events along with tumor microenvironment (TME) through different drug molecules to inhibit the progression of GBM, but clinically they failed to demonstrate much success. Herein, we discuss the therapeutic targets and signaling cascades along with the role of the organoids model in GBM research. Moreover, we systematically review the traditional and emerging therapeutic strategies in GBM. In addition, we discuss the implications of nanotechnologies, AI, and combinatorial approach to enhance GBM therapeutics.
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Affiliation(s)
- Smita Kumari
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, India
| | - Rohan Gupta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, India
| | - Rashmi K Ambasta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, India
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, India.
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14
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Fudaba H, Wakimoto H. Oncolytic virus therapy for malignant gliomas: entering the new era. Expert Opin Biol Ther 2023; 23:269-282. [PMID: 36809883 DOI: 10.1080/14712598.2023.2184256] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
INTRODUCTION To overcome the challenge of treating malignant brain tumors, oncolytic viruses (OVs) represent an innovative therapeutic approach, featuring unique mechanisms of action. The recent conditional approval of the oncolytic herpes simplex virus G47Δ as a therapeutic for malignant brain tumors marked a significant milestone in the long history of OV development in neuro-oncology. AREAS COVERED This review summarizes the results of recently completed and active clinical studies that investigate the safety and efficacy of different OV types in patients with malignant gliomas. The changing landscape of the OV trial design includes expansion of subjects to newly diagnosed tumors and pediatric populations. A variety of delivery methods and new routes of administration are vigorously tested to optimize tumor infection and overall efficacy. New therapeutic strategies such as combination with immunotherapies are proposed that take advantage of the characteristics of OV therapy as an immunotherapy. Preclinical studies of OV have been active and aim to translate new OV strategies to the clinic. EXPERT OPINION For the next decade, clinical trials and preclinical and translational research will continue to drive the development of innovative OV treatments for malignant gliomas and benefit patients and define new OV biomarkers.
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Affiliation(s)
- Hirotaka Fudaba
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Department of Neurosurgery, Oita University Faculty of Medicine, Yufu, Japan
| | - Hiroaki Wakimoto
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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15
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Recent Developments in Glioblastoma Therapy: Oncolytic Viruses and Emerging Future Strategies. Viruses 2023; 15:v15020547. [PMID: 36851761 PMCID: PMC9958853 DOI: 10.3390/v15020547] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/24/2023] [Accepted: 02/10/2023] [Indexed: 02/18/2023] Open
Abstract
Glioblastoma is the most aggressive form of malignant brain tumor. Standard treatment protocols and traditional immunotherapy are poorly effective as they do not significantly increase the long-term survival of glioblastoma patients. Oncolytic viruses (OVs) may be an effective alternative approach. Combining OVs with some modern treatment options may also provide significant benefits for glioblastoma patients. Here we review virotherapy for glioblastomas and describe several OVs and their combination with other therapies. The personalized use of OVs and their combination with other treatment options would become a significant area of research aiming to develop the most effective treatment regimens for glioblastomas.
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16
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Jiang Y, Zhang H, Wang J, Chen J, Guo Z, Liu Y, Hua H. Exploiting RIG-I-like receptor pathway for cancer immunotherapy. J Hematol Oncol 2023; 16:8. [PMID: 36755342 PMCID: PMC9906624 DOI: 10.1186/s13045-023-01405-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
RIG-I-like receptors (RLRs) are intracellular pattern recognition receptors that detect viral or bacterial infection and induce host innate immune responses. The RLRs family comprises retinoic acid-inducible gene 1 (RIG-I), melanoma differentiation-associated gene 5 (MDA5) and laboratory of genetics and physiology 2 (LGP2) that have distinctive features. These receptors not only recognize RNA intermediates from viruses and bacteria, but also interact with endogenous RNA such as the mislocalized mitochondrial RNA, the aberrantly reactivated repetitive or transposable elements in the human genome. Evasion of RLRs-mediated immune response may lead to sustained infection, defective host immunity and carcinogenesis. Therapeutic targeting RLRs may not only provoke anti-infection effects, but also induce anticancer immunity or sensitize "immune-cold" tumors to immune checkpoint blockade. In this review, we summarize the current knowledge of RLRs signaling and discuss the rationale for therapeutic targeting RLRs in cancer. We describe how RLRs can be activated by synthetic RNA, oncolytic viruses, viral mimicry and radio-chemotherapy, and how the RNA agonists of RLRs can be systemically delivered in vivo. The integration of RLRs agonism with RNA interference or CAR-T cells provides new dimensions that complement cancer immunotherapy. Moreover, we update the progress of recent clinical trials for cancer therapy involving RLRs activation and immune modulation. Further studies of the mechanisms underlying RLRs signaling will shed new light on the development of cancer therapeutics. Manipulation of RLRs signaling represents an opportunity for clinically relevant cancer therapy. Addressing the challenges in this field will help develop future generations of cancer immunotherapy.
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Affiliation(s)
- Yangfu Jiang
- Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Hongying Zhang
- Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiao Wang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Jinzhu Chen
- Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zeyu Guo
- Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yongliang Liu
- Laboratory of Oncogene, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hui Hua
- Laboratory of Stem Cell Biology, West China Hospital, Sichuan University, Chengdu, 610041, China.
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17
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Varela ML, Comba A, Faisal SM, Argento A, Franson A, Barissi MN, Sachdev S, Castro MG, Lowenstein PR. Gene Therapy for High Grade Glioma: The Clinical Experience. Expert Opin Biol Ther 2023; 23:145-161. [PMID: 36510843 PMCID: PMC9998375 DOI: 10.1080/14712598.2022.2157718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
INTRODUCTION High-grade gliomas (HGG) are the most common malignant primary brain tumors in adults, with a median survival of ~18 months. The standard of care (SOC) is maximal safe surgical resection, and radiation therapy with concurrent and adjuvant temozolomide. This protocol remains unchanged since 2005, even though HGG median survival has marginally improved. AREAS COVERED Gene therapy was developed as a promising approach to treat HGG. Here, we review completed and ongoing clinical trials employing viral and non-viral vectors for adult and pediatric HGG, as well as the key supporting preclinical data. EXPERT OPINION These therapies have proven safe, and pre- and post-treatment tissue analyses demonstrated tumor cell lysis, increased immune cell infiltration, and increased systemic immune function. Although viral therapy in clinical trials has not yet significantly extended the survival of HGG, promising strategies are being tested. Oncolytic HSV vectors have shown promising results for both adult and pediatric HGG. A recently published study demonstrated that HG47Δ improved survival in recurrent HGG. Likewise, PVSRIPO has shown survival improvement compared to historical controls. It is likely that further analysis of these trials will stimulate the development of new administration protocols, and new therapeutic combinations that will improve HGG prognosis.
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Affiliation(s)
- Maria Luisa Varela
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Andrea Comba
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Syed M Faisal
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Anna Argento
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Andrea Franson
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Marcus N Barissi
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Sean Sachdev
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL USA
| | - Maria G Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Pedro R Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, MI, United States
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18
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Whelan JT, Singaravelu R, Wang F, Pelin A, Tamming LA, Pugliese G, Martin NT, Crupi MJF, Petryk J, Austin B, He X, Marius R, Duong J, Jones C, Fekete EEF, Alluqmani N, Chen A, Boulton S, Huh MS, Tang MY, Taha Z, Scut E, Diallo JS, Azad T, Lichty BD, Ilkow CS, Bell JC. CRISPR-mediated rapid arming of poxvirus vectors enables facile generation of the novel immunotherapeutic STINGPOX. Front Immunol 2023; 13:1050250. [PMID: 36713447 PMCID: PMC9880309 DOI: 10.3389/fimmu.2022.1050250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/05/2022] [Indexed: 01/15/2023] Open
Abstract
Poxvirus vectors represent versatile modalities for engineering novel vaccines and cancer immunotherapies. In addition to their oncolytic capacity and immunogenic influence, they can be readily engineered to express multiple large transgenes. However, the integration of multiple payloads into poxvirus genomes by traditional recombination-based approaches can be highly inefficient, time-consuming and cumbersome. Herein, we describe a simple, cost-effective approach to rapidly generate and purify a poxvirus vector with multiple transgenes. By utilizing a simple, modular CRISPR/Cas9 assisted-recombinant vaccinia virus engineering (CARVE) system, we demonstrate generation of a recombinant vaccinia virus expressing three distinct transgenes at three different loci in less than 1 week. We apply CARVE to rapidly generate a novel immunogenic vaccinia virus vector, which expresses a bacterial diadenylate cyclase. This novel vector, STINGPOX, produces cyclic di-AMP, a STING agonist, which drives IFN signaling critical to the anti-tumor immune response. We demonstrate that STINGPOX can drive IFN signaling in primary human cancer tissue explants. Using an immunocompetent murine colon cancer model, we demonstrate that intratumoral administration of STINGPOX in combination with checkpoint inhibitor, anti-PD1, promotes survival post-tumour challenge. These data demonstrate the utility of CRISPR/Cas9 in the rapid arming of poxvirus vectors with therapeutic payloads to create novel immunotherapies.
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Affiliation(s)
- Jack T. Whelan
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Ragunath Singaravelu
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada,Public Health Agency of Canada, Ottawa, ON, Canada
| | - Fuan Wang
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, ON, Canada,MG DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Adrian Pelin
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Levi A. Tamming
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Giuseppe Pugliese
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Nikolas T. Martin
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Mathieu J. F. Crupi
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Julia Petryk
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Bradley Austin
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Xiaohong He
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Ricardo Marius
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Jessie Duong
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Carter Jones
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Emily E. F. Fekete
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Nouf Alluqmani
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Andrew Chen
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Stephen Boulton
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Michael S. Huh
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Matt Y. Tang
- Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Zaid Taha
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Elena Scut
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Jean-Simon Diallo
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Taha Azad
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Brian D. Lichty
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, ON, Canada,MG DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada,*Correspondence: John C. Bell, ; Carolina S. Ilkow, ; Brian D. Lichty,
| | - Carolina S. Ilkow
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada,*Correspondence: John C. Bell, ; Carolina S. Ilkow, ; Brian D. Lichty,
| | - John C. Bell
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada,Centre for Innovation Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada,*Correspondence: John C. Bell, ; Carolina S. Ilkow, ; Brian D. Lichty,
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19
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Bo L, Tianming L, Fengliang F, Wenping L, Jinzuo H, Dongbo X, Biao M, Haijun S. Global trends of Vaccinia oncolytic virus therapy over the past two decades: Bibliometric and visual analysis. Front Immunol 2023; 14:1063548. [PMID: 36817418 PMCID: PMC9932265 DOI: 10.3389/fimmu.2023.1063548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Background In recent years, the vaccinia oncolytic virus has entered the clinical trial stage of examination and shown good progress. It has many advantages, such as good safety, high oncolytic efficiency, and the regulation ability of the tumor microenvironment, and is expected to be successfully used in the clinical treatment of tumors in the future. However, no bibliometric analysis has so far been performed that generalizes horizontally across this field. Therefore, this study aims to assess the research status and trends in this field from a global perspective to help guide future research priorities. Methods In this study, the literature related to vaccinia oncolytic virus published in English on Web of Science from 2002 to 2022 was retrieved, and the bibliometric indicators were analyzed using the Histcite. Pro 2.0 tool, while VOSviewer was used to visualize the research trends and hotspots in this field. Results In total, 408 related studies were included. In the past 20 years, the number of related publications in this field has increased year by year, and breakthroughs were made in this field in 2008 and 2013. The research has grown rapidly since 2008, and will likely continue to expand in the years to come. The United States plays a leading role in this area. "MOLECULAR THERAPY-ONCOLYTICS", "MOLECULAR THERAPY" and "JOURNAL OF TRANSLATIONAL MEDICINE" are core journals that publish high-quality literature on the latest advances in the field. Some authors with numerous high-quality publications include Bell JC and Szalay AA. At present, the research hotspot in this field focus on the clinical application of vaccinia oncolytic virus. Conclusion Overall, the number of vaccinia oncolytic virus-related studies is growing rapidly, in relation to which the United States is the most influential country. The clinical application of vaccinia oncolytic virus will affect the crucial development of future research.
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Affiliation(s)
- Liu Bo
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Liu Tianming
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Fan Fengliang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Liang Wenping
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Han Jinzuo
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xue Dongbo
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ma Biao
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Sun Haijun
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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20
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Wei M, Zuo S, Chen Z, Qian P, Zhang Y, Kong L, Gao H, Wei J, Dong J. Oncolytic vaccinia virus expressing a bispecific T-cell engager enhances immune responses in EpCAM positive solid tumors. Front Immunol 2022; 13:1017574. [PMID: 36451817 PMCID: PMC9702515 DOI: 10.3389/fimmu.2022.1017574] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/26/2022] [Indexed: 10/27/2023] Open
Abstract
Insufficient intratumoral T-cell infiltration and lack of tumor-specific immune surveillance in tumor microenvironment (TME) hinder the progression of cancer immunotherapy. In this study, we explored a recombinant vaccinia virus encoding an EpCAM BiTE (VV-EpCAM BiTE) to modulate the immune suppressive microenvironment to enhance antitumor immunity in several solid tumors. VV-EpCAM BiTE effectively infected, replicated and lysed malignant cells. The EpCAM BiTE secreted from infected malignants effectively mediated the binding of EpCAM-positive tumor cells and CD3ϵ on T cells, which led to activation of naive T-cell and the release of cytokines, such as IFN-γ and IL-2. Intratumoral administration of VV-EpCAM BiTE significantly enhanced antitumor activity in malignancies with high other than with low EpCAM expression level. In addition, immune cell infiltration was significantly increased in TME upon VV-EpCAM BiTE treatment, CD8+ T cell exhaustion was reduced and T-cell-mediated immune activation was markedly enhanced. Taken together, VV-EpCAM BiTE sophistically combines the antitumor advantages of bispecific antibodies and oncolytic viruses, which provides preclinical evidence for the therapeutic potential of VV-EpCAM BiTE.
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Affiliation(s)
- Min Wei
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Shuguang Zuo
- Liuzhou Key Laboratory of Molecular Diagnosis, Guangxi Key Laboratory of Molecular Diagnosis and Application, Affiliated Liutie Central Hospital of Guangxi Medical University, Liuzhou, Guangxi, China
| | - Zhimin Chen
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
| | - Peng Qian
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Yenan Zhang
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Lingkai Kong
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Honglan Gao
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
| | - Jiwu Wei
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Jie Dong
- Affiliated Yancheng No.1 People’s Hospital, Medical School of Nanjing University, Yancheng, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
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21
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Zhou C, Chen Q, Chen Y, Qin CF. Oncolytic Zika Virus: New Option for Glioblastoma Treatment. DNA Cell Biol 2022. [DOI: 10.1089/dna.2022.0375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Chao Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- Key Laboratory of Immune Microenvironment and Disease, Department of Immunology, Nanjing Medical University, Nanjing, China
| | - Qi Chen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yun Chen
- Key Laboratory of Immune Microenvironment and Disease, Department of Immunology, Nanjing Medical University, Nanjing, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
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22
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Shoaf ML, Desjardins A. Oncolytic Viral Therapy for Malignant Glioma and Their Application in Clinical Practice. Neurotherapeutics 2022; 19:1818-1831. [PMID: 35674873 PMCID: PMC9723031 DOI: 10.1007/s13311-022-01256-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2022] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma is the most common primary malignant brain tumor in adults and outcomes remain poor despite the current standard of care multimodal therapy. Oncolytic virotherapy utilizes engineered viruses to exert an anti-tumor effect via both direct oncolysis and stimulation of an immune response within the tumor microenvironment, turning tumors from "cold" to "hot." This has shown promise as a novel therapeutic modality and attempts to circumvent the challenges associated with traditional treatments. Many oncolytic viruses have been investigated in completed and ongoing clinical trials and while safety has been demonstrated, clinical outcomes have been variable, often with only a subgroup of patients showing a significant response. This review summarizes these studies, addresses relevant technical aspects of oncolytic virus administration, and highlights practical considerations to assist providers in appropriately caring for patients treated with oncolytic virotherapy. Additionally, future directions within the field that may help to maximize efficacy of this modality are discussed.
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Affiliation(s)
- Madison L Shoaf
- Department of Neurosurgery, Duke University Medical Center, PO Box 3624, Durham, NC, 27710, USA
| | - Annick Desjardins
- Department of Neurosurgery, Duke University Medical Center, PO Box 3624, Durham, NC, 27710, USA.
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23
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Boutin L, Mosca E, Iseni F. Efficient Method for Generating Point Mutations in the Vaccinia Virus Genome Using CRISPR/Cas9. Viruses 2022; 14:v14071559. [PMID: 35891539 PMCID: PMC9321979 DOI: 10.3390/v14071559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 12/04/2022] Open
Abstract
The vaccinia virus (VACV) was previously used as a vaccine for smallpox eradication. Nowadays, recombinant VACVs are developed as vaccine platforms for infectious disease prevention and cancer treatment. The conventional method for genome editing of the VACV is based on homologous recombination, which is poorly efficient. Recently, the use of CRISPR/Cas9 technology was shown to greatly improve the speed and efficiency of the production of recombinant VACV expressing a heterologous gene. However, the ability to rapidly recover viruses bearing single nucleotide substitutions is still challenging. Notwithstanding, ongoing studies on the VACV and its interaction with the host cell could benefit from viral gene targeted mutagenesis. Here, we present a modified version of the CRISPR/Cas9 system for the rapid selection of mutant VACV carrying point mutations. For this purpose, we introduced a silent mutation into the donor gene (which will replace the wildtype gene) that serves a double function: it is located in the PAM (NGG) sequence, which is essential for Cas9 cleavage, and it alters a restriction site. This silent mutation, once introduced into the VACV genome, allows for rapid selection and screening of mutant viruses carrying a mutation of interest in the targeted gene. As a proof of concept, we produced several recombinant VACVs, with mutations in the E9L gene, upon which, phenotypic analysis was performed.
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24
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Mencattini A, Lansche C, Veith I, Erbs P, Balloul JM, Quemeneur E, Descroix S, Mechta-Grigoriou F, Zalcman G, Zaupa C, Parrini MC, Martinelli E. Direct imaging and automatic analysis in tumor-on-chip reveal cooperative antitumoral activity of immune cells and oncolytic vaccinia virus. Biosens Bioelectron 2022; 215:114571. [DOI: 10.1016/j.bios.2022.114571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/28/2022] [Accepted: 07/10/2022] [Indexed: 11/02/2022]
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25
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Combination therapy with CAR T cells and oncolytic viruses: a new era in cancer immunotherapy. Cancer Gene Ther 2022; 29:647-660. [PMID: 34158626 DOI: 10.1038/s41417-021-00359-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/16/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy is an encouraging and fast-growing platform used for the treatment of various types of tumors in human body. Despite the recent success of CAR T-cell therapy in hematologic malignancies, especially in B-cell lymphoma and acute lymphoblastic leukemia, the application of this treatment approach in solid tumors faced several obstacles resulted from the heterogeneous expression of antigens as well as the induction of immunosuppressive tumor microenvironment. Oncolytic virotherapy (OV) is a new cancer treatment modality by the use of competent or genetically engineered viruses to replicate in tumor cells selectively. OVs represent potential candidates to synergize the current setbacks of CAR T-cell application in solid tumors and then and overcome them. As well, the application of OVs gives researches the ability to engineer the virus with payloads in the way that it selectively deliver a specific therapeutic agents in tumor milieu to reinforce the cytotoxic activity of CAR T cells. Herein, we made a comprehensive review on the outcomes resulted from the combination of CAR T-cell immunotherapy and oncolytic virotherapy for the treatment of solid cancers. In the current study, we also provided brief details on some challenges that remained in this field and attempted to shed a little light on the future perspectives.
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26
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Ramos RN, Tosch C, Kotsias F, Claudepierre MC, Schmitt D, Remy-Ziller C, Hoffmann C, Ricordel M, Nourtier V, Farine I, Laruelle L, Hortelano J, Spring-Giusti C, Sedlik C, Le Tourneau C, Hoffmann C, Silvestre N, Erbs P, Bendjama K, Thioudellet C, Quemeneur E, Piaggio E, Rittner K. Pseudocowpox virus, a novel vector to enhance the therapeutic efficacy of antitumor vaccination. Clin Transl Immunology 2022; 11:e1392. [PMID: 35573979 PMCID: PMC9081486 DOI: 10.1002/cti2.1392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 01/11/2022] [Accepted: 04/16/2022] [Indexed: 11/11/2022] Open
Abstract
Objective Antitumor viral vaccines, and more particularly poxviral vaccines, represent an active field for clinical development and translational research. To improve the efficacy and treatment outcome, new viral vectors are sought, with emphasis on their abilities to stimulate innate immunity, to display tumor antigens and to induce a specific T‐cell response. Methods We screened for a new poxviral backbone with improved innate and adaptive immune stimulation using IFN‐α secretion levels in infected PBMC cultures as selection criteria. Assessment of virus effectiveness was made in vitro and in vivo. Results The bovine pseudocowpox virus (PCPV) stood out among several poxviruses for its ability to induce significant secretion of IFN‐α. PCPV produced efficient activation of human monocytes and dendritic cells, degranulation of NK cells and reversed MDSC‐induced T‐cell suppression, without being offensive to activated T cells. A PCPV‐based vaccine, encoding the HPV16 E7 protein (PCPV‐E7), stimulated strong antigen‐specific T‐cell responses in TC1 tumor‐bearing mice. Complete regression of tumors was obtained in a CD8+ T‐cell‐dependent manner after intratumoral injection of PCPV‐E7, followed by intravenous injection of the cancer vaccine MVA‐E7. PCPV also proved active when injected repeatedly intratumorally in MC38 tumor‐bearing mice, generating tumor‐specific T‐cell responses without encoding a specific MC38 antigen. From a translational perspective, we demonstrated that PCPV‐E7 effectively stimulated IFN‐γ production by T cells from tumor‐draining lymph nodes of HPV+‐infected cancer patients. Conclusion We propose PCPV as a viral vector suitable for vaccination in the field of personalised cancer vaccines, in particular for heterologous prime‐boost regimens.
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Affiliation(s)
- Rodrigo Nalio Ramos
- Institut Curie INSERM U932, and Centre d'Investigation Clinique Biotherapie CICBT 1428 PSL Research University Paris France.,Present address: Laboratório de Investigação Médica em Patogênese e Terapia dirigida em Onco-Imuno-Hematologia Hospital das Clínicas Faculdade de Medicina da Universidade de São Paulo (HCFMUSP) São Paulo Brazil.,Present address: Instituto D'Or de Ensino e Pesquisa São Paulo Brazil
| | | | - Fiorella Kotsias
- Institut Curie INSERM U932, and Centre d'Investigation Clinique Biotherapie CICBT 1428 PSL Research University Paris France
| | | | | | | | | | | | | | | | | | | | | | - Christine Sedlik
- Institut Curie INSERM U932, and Centre d'Investigation Clinique Biotherapie CICBT 1428 PSL Research University Paris France
| | - Christophe Le Tourneau
- Department of Drug Development and Innovation (D3i) Institut Curie Paris and Saint-Cloud France
| | - Caroline Hoffmann
- Institut Curie INSERM U932, and Centre d'Investigation Clinique Biotherapie CICBT 1428 PSL Research University Paris France.,Department of Surgical Oncology Institut Curie PSL Research University Paris France
| | | | | | | | | | | | - Eliane Piaggio
- Institut Curie INSERM U932, and Centre d'Investigation Clinique Biotherapie CICBT 1428 PSL Research University Paris France
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Naumenko VA, Stepanenko AA, Lipatova AV, Vishnevskiy DA, Chekhonin VP. Infection of non-cancer cells: A barrier or support for oncolytic virotherapy? MOLECULAR THERAPY - ONCOLYTICS 2022; 24:663-682. [PMID: 35284629 PMCID: PMC8898763 DOI: 10.1016/j.omto.2022.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oncolytic viruses are designed to specifically target cancer cells, sparing normal cells. Although numerous studies demonstrate the ability of oncolytic viruses to infect a wide range of non-tumor cells, the significance of this phenomenon for cancer virotherapy is poorly understood. To fill the gap, we summarize the data on infection of non-cancer targets by oncolytic viruses with a special focus on tumor microenvironment and secondary lymphoid tissues. The review aims to address two major questions: how do attenuated viruses manage to infect normal cells, and whether it is of importance for oncolytic virotherapy.
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Affiliation(s)
- Victor A. Naumenko
- V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow 119034, Russia
- Corresponding author Victor A. Naumenko, PhD, V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow 119034, Russia.
| | - Aleksei A. Stepanenko
- V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow 119034, Russia
- Department of Medical Nanobiotechnology, N.I Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Anastasiia V. Lipatova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Daniil A. Vishnevskiy
- V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow 119034, Russia
| | - Vladimir P. Chekhonin
- V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow 119034, Russia
- Department of Medical Nanobiotechnology, N.I Pirogov Russian National Research Medical University, Moscow 117997, Russia
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28
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Semmrich M, Marchand JB, Fend L, Rehn M, Remy C, Holmkvist P, Silvestre N, Svensson C, Kleinpeter P, Deforges J, Junghus F, Cleary KL, Bodén M, Mårtensson L, Foloppe J, Teige I, Quéméneur E, Frendéus B. Vectorized Treg-depleting αCTLA-4 elicits antigen cross-presentation and CD8+ T cell immunity to reject ‘cold’ tumors. J Immunother Cancer 2022; 10:jitc-2021-003488. [PMID: 35058324 PMCID: PMC8783833 DOI: 10.1136/jitc-2021-003488] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2021] [Indexed: 12/12/2022] Open
Abstract
BackgroundImmune checkpoint blockade (ICB) is a clinically proven concept to treat cancer. Still, a majority of patients with cancer including those with poorly immune infiltrated ‘cold’ tumors are resistant to currently available ICB therapies. Cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) is one of few clinically validated targets for ICB, but toxicities linked to efficacy in approved αCTLA-4 regimens have restricted their use and precluded full therapeutic dosing. At a mechanistic level, accumulating preclinical and clinical data indicate dual mechanisms for αCTLA-4; ICB and regulatory T cell (Treg) depletion are both thought to contribute efficacy and toxicity in available, systemic, αCTLA-4 regimens. Accordingly, strategies to deliver highly effective, yet safe αCTLA-4 therapies have been lacking. Here we assess and identify spatially restricted exposure to a novel strongly Treg-depleting, checkpoint-blocking, vectorized αCTLA-4, as a highly efficacious and potentially safe strategy to target CTLA-4.MethodsA novel human IgG1 CTLA-4 antibody (4-E03) was identified using function-first screening for monoclonal antibodies (mAbs) and targets associated with superior Treg-depleting activity. A tumor-selective oncolytic vaccinia vector was then engineered to encode this novel, strongly Treg-depleting, checkpoint-blocking, αCTLA-4 antibody or a matching surrogate antibody, and Granulocyte-macrophage colony-stimulating factor (GM-CSF) (VVGM-αCTLA-4).ResultsThe identified 4-E03 antibody showed significantly stronger Treg depletion, but equipotent checkpoint blockade, compared with clinically validated αCTLA-4 ipilimumab against CTLA-4-expressing Treg cells in a humanized mouse model in vivo. Intratumoral administration of VVGM-αCTLA-4 achieved tumor-restricted CTLA-4 receptor saturation and Treg depletion, which elicited antigen cross-presentation and stronger systemic expansion of tumor-specific CD8+ T cells and antitumor immunity compared with systemic αCTLA-4 antibody therapy. Efficacy correlated with FcγR-mediated intratumoral Treg depletion. Remarkably, in a clinically relevant mouse model resistant to systemic ICB, intratumoral VVGM-αCTLA-4 synergized with αPD-1 to reject cold tumors.ConclusionOur findings demonstrate in vivo proof of concept for spatial restriction of Treg depletion-optimized immune checkpoint blocking, vectorized αCTLA-4 as a highly effective and safe strategy to target CTLA-4. A clinical trial evaluating intratumoral VVGM-αhCTLA-4 (BT-001) alone and in combination with αPD-1 in metastatic or advanced solid tumors has commenced.
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Affiliation(s)
- Monika Semmrich
- Department of Research, BioInvent International AB, Lund, Sweden
| | | | - Laetitia Fend
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | - Matilda Rehn
- Department of Research, BioInvent International AB, Lund, Sweden
| | - Christelle Remy
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | - Petra Holmkvist
- Department of Research, BioInvent International AB, Lund, Sweden
| | | | - Carolin Svensson
- Department of Research, BioInvent International AB, Lund, Sweden
| | | | - Jules Deforges
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | - Fred Junghus
- Department of Research, BioInvent International AB, Lund, Sweden
| | - Kirstie L Cleary
- Antibody and Vaccine Group, Centre for Cancer Immunology, Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Mimoza Bodén
- Department of Research, BioInvent International AB, Lund, Sweden
| | - Linda Mårtensson
- Department of Research, BioInvent International AB, Lund, Sweden
| | - Johann Foloppe
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | - Ingrid Teige
- Department of Research, BioInvent International AB, Lund, Sweden
| | - Eric Quéméneur
- Department of Research, Transgene SA, Illkirch-Graffenstaden, France
| | - Björn Frendéus
- Department of Research, BioInvent International AB, Lund, Sweden
- Antibody and Vaccine Group, Centre for Cancer Immunology, Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, UK
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29
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Mahmoud AB, Ajina R, Aref S, Darwish M, Alsayb M, Taher M, AlSharif SA, Hashem AM, Alkayyal AA. Advances in immunotherapy for glioblastoma multiforme. Front Immunol 2022; 13:944452. [PMID: 36311781 PMCID: PMC9597698 DOI: 10.3389/fimmu.2022.944452] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 09/23/2022] [Indexed: 02/05/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive malignant brain tumor of the central nervous system and has a very poor prognosis. The current standard of care for patients with GBM involves surgical resection, radiotherapy, and chemotherapy. Unfortunately, conventional therapies have not resulted in significant improvements in the survival outcomes of patients with GBM; therefore, the overall mortality rate remains high. Immunotherapy is a type of cancer treatment that helps the immune system to fight cancer and has shown success in different types of aggressive cancers. Recently, healthcare providers have been actively investigating various immunotherapeutic approaches to treat GBM. We reviewed the most promising immunotherapy candidates for glioblastoma that have achieved encouraging results in clinical trials, focusing on immune checkpoint inhibitors, oncolytic viruses, nonreplicating viral vectors, and chimeric antigen receptor (CAR) immunotherapies.
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Affiliation(s)
- Ahmad Bakur Mahmoud
- College of Applied Medical Sciences, Taibah University, Almadinah Almunwarah, Saudi Arabia
- Strategic Research and Innovation Laboratories, Taibah University, Almadinah Almunwarah, Saudi Arabia
- King Abdullah International Medical Research Centre, King Saud University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
- *Correspondence: Ahmad Bakur Mahmoud, ; Almohanad A. Alkayyal,
| | - Reham Ajina
- King Abdullah International Medical Research Centre, King Saud University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Sarah Aref
- King Abdullah International Medical Research Centre, King Saud University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Manar Darwish
- Strategic Research and Innovation Laboratories, Taibah University, Almadinah Almunwarah, Saudi Arabia
| | - May Alsayb
- College of Applied Medical Sciences, Taibah University, Almadinah Almunwarah, Saudi Arabia
| | - Mustafa Taher
- College of Applied Medical Sciences, Taibah University, Almadinah Almunwarah, Saudi Arabia
- Strategic Research and Innovation Laboratories, Taibah University, Almadinah Almunwarah, Saudi Arabia
| | - Shaker A. AlSharif
- King Fahad Hospital, Ministry of Health, Almadinah Almunwarah, Saudi Arabia
| | - Anwar M. Hashem
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center; King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Almohanad A. Alkayyal
- Department of Medical Laboratory Technology, University of Tabuk, Tabuk, Saudi Arabia
- Immunology Research Program, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- *Correspondence: Ahmad Bakur Mahmoud, ; Almohanad A. Alkayyal,
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30
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He X, Zhao W, Huang J, Xu J, Niu S, Zhang Q, Zhang N, Jin H, Shen G. Characteristics and trends of globally registered glioma clinical trials in the past 16 years. Ther Adv Neurol Disord 2022; 15:17562864221114355. [PMID: 35923217 PMCID: PMC9340892 DOI: 10.1177/17562864221114355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/29/2022] [Indexed: 11/15/2022] Open
Abstract
Background: Advancement in the treatment of glioma has been vacant since temozolomide has proved its therapeutic value in glioblastoma in 2005. Aim: To help investigators understand the landscape of glioma clinical research, we analyzed the characteristics and trends of globally registered glioma trials in the past decades. Methods: This is a cross-sectional analysis of glioma trials registered on ClinicalTrials.gov between January 2006 and December 2021. Characteristics regarding phase, enrollment number, study design and type, funding source, tumor site, pathology, patient status, age of population, trial purpose, and participating country were abstracted, and chronological shifts were analyzed. Results: There were 1531 registered glioma trials involved 58 participating countries. The trial purpose concerning surgery, radiotherapy, chemotherapy, targeted therapy, tumor-treating fields, immunotherapy, other antiglioma therapy and non-antiglioma research trial accounts for 3.5%, 6.5%, 9.5%, 28.9%, 2.0%, 16.4%, 12.5%, and 20.6%, respectively. In the past 16 years, the numbers of chemotherapy and targeted therapy trials declined; tumor-treating fields and immune checkpoint inhibitor application trials sprang at the latter half period; Immunotherapy, other antiglioma therapy and non-antiglioma research trials escalated (all above ptrend < 0.005). The trend also showed the phased trials registered diminishingly and that the trials which focused on glioblastoma registered incrementally (those two ptrend < 0.05). Among 784 drug therapy trials, it was included 45 cytotoxic drugs, 186 targeted drugs, 19 immune checkpoint inhibitors, 78 other drugs, and five immunomodulatory drugs. Two trials belonged to Bayesian adaptive randomized design. By the end of December 2021, 309 trials had publications. Only everolimus and tumor-treating fields exhibited meaningful survival benefit in specific glioma patients in phase 3 trials. Conclusion: Meaningful effective treatments regarding drugs or methods for glioma were difficult to be found. Bayesian adaptive platform trials may accelerate clinical research in glioma. Development of novel treatment modalities for glioma is still challenged.
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Affiliation(s)
- Xiaofang He
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Wenbin Zhao
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jianwen Huang
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jia Xu
- Department of Emergency, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Shaoqing Niu
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Qun Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Nu Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou, P.R. China
| | - Huawei Jin
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, No.58, Zhongshan Road 2, Guangzhou 510080, Guangdong Province, P.R. China
| | - Guoping Shen
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, No.58, Zhongshan Road 2, Guangzhou 510080, Guangdong Province, P.R. China
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Yang L, Gu X, Yu J, Ge S, Fan X. Oncolytic Virotherapy: From Bench to Bedside. Front Cell Dev Biol 2021; 9:790150. [PMID: 34901031 PMCID: PMC8662562 DOI: 10.3389/fcell.2021.790150] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/12/2021] [Indexed: 01/23/2023] Open
Abstract
Oncolytic viruses are naturally occurring or genetically engineered viruses that can replicate preferentially in tumor cells and inhibit tumor growth. These viruses have been considered an effective anticancer strategy in recent years. They mainly function by direct oncolysis, inducing an anticancer immune response and expressing exogenous effector genes. Their multifunctional characteristics indicate good application prospects as cancer therapeutics, especially in combination with other therapies, such as radiotherapy, chemotherapy and immunotherapy. Therefore, it is necessary to comprehensively understand the utility of oncolytic viruses in cancer therapeutics. Here, we review the characteristics, antitumor mechanisms, clinical applications, deficiencies and associated solutions, and future prospects of oncolytic viruses.
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Affiliation(s)
- Ludi Yang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Xiang Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jie Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
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32
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Virotherapy in Germany-Recent Activities in Virus Engineering, Preclinical Development, and Clinical Studies. Viruses 2021; 13:v13081420. [PMID: 34452286 PMCID: PMC8402873 DOI: 10.3390/v13081420] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 02/06/2023] Open
Abstract
Virotherapy research involves the development, exploration, and application of oncolytic viruses that combine direct killing of cancer cells by viral infection, replication, and spread (oncolysis) with indirect killing by induction of anti-tumor immune responses. Oncolytic viruses can also be engineered to genetically deliver therapeutic proteins for direct or indirect cancer cell killing. In this review—as part of the special edition on “State-of-the-Art Viral Vector Gene Therapy in Germany”—the German community of virotherapists provides an overview of their recent research activities that cover endeavors from screening and engineering viruses as oncolytic cancer therapeutics to their clinical translation in investigator-initiated and sponsored multi-center trials. Preclinical research explores multiple viral platforms, including new isolates, serotypes, or fitness mutants, and pursues unique approaches to engineer them towards increased safety, shielded or targeted delivery, selective or enhanced replication, improved immune activation, delivery of therapeutic proteins or RNA, and redirecting antiviral immunity for cancer cell killing. Moreover, several oncolytic virus-based combination therapies are under investigation. Clinical trials in Germany explore the safety and potency of virotherapeutics based on parvo-, vaccinia, herpes, measles, reo-, adeno-, vesicular stomatitis, and coxsackie viruses, including viruses encoding therapeutic proteins or combinations with immune checkpoint inhibitors. These research advances represent exciting vantage points for future endeavors of the German virotherapy community collectively aimed at the implementation of effective virotherapeutics in clinical oncology.
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Oncolytic Viruses for Malignant Glioma: On the Verge of Success? Viruses 2021; 13:v13071294. [PMID: 34372501 PMCID: PMC8310195 DOI: 10.3390/v13071294] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma is one of the most difficult tumor types to treat with conventional therapy options like tumor debulking and chemo- and radiotherapy. Immunotherapeutic agents like oncolytic viruses, immune checkpoint inhibitors, and chimeric antigen receptor T cells have revolutionized cancer therapy, but their success in glioblastoma remains limited and further optimization of immunotherapies is needed. Several oncolytic viruses have demonstrated the ability to infect tumors and trigger anti-tumor immune responses in malignant glioma patients. Leading the pack, oncolytic herpesvirus, first in its class, awaits an approval for treating malignant glioma from MHLW, the federal authority of Japan. Nevertheless, some major hurdles like the blood–brain barrier, the immunosuppressive tumor microenvironment, and tumor heterogeneity can engender suboptimal efficacy in malignant glioma. In this review, we discuss the current status of malignant glioma therapies with a focus on oncolytic viruses in clinical trials. Furthermore, we discuss the obstacles faced by oncolytic viruses in malignant glioma patients and strategies that are being used to overcome these limitations to (1) optimize delivery of oncolytic viruses beyond the blood–brain barrier; (2) trigger inflammatory immune responses in and around tumors; and (3) use multimodal therapies in combination to tackle tumor heterogeneity, with an end goal of optimizing the therapeutic outcome of oncolytic virotherapy.
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Hill C, Grundy M, Bau L, Wallington S, Balkaran J, Ramos V, Fisher K, Seymour L, Coussios C, Carlisle R. Polymer stealthing and mucin-1 retargeting for enhanced pharmacokinetics of an oncolytic vaccinia virus. Mol Ther Oncolytics 2021; 21:47-61. [PMID: 33869742 PMCID: PMC8026752 DOI: 10.1016/j.omto.2021.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 03/14/2021] [Indexed: 11/20/2022] Open
Abstract
Vaccinia virus (VV) is a powerful tool for cancer treatment with the potential for tumor tropism, efficient cell-to-cell spread, rapid replication in cancer cells, and stimulation of anti-tumor immunity. It has a well-defined safety profile and is being assessed in late-stage clinical trials. However, VV clinical utility is limited by rapid bloodstream neutralization and poor penetration into tumors. These factors have often restricted its route of delivery to intratumoral or intrahepatic artery injection and may impede repeat dosing. Chemical stealthing improves the pharmacokinetics of non-enveloped viruses, but it has not yet been applied to enveloped viruses such as VV. In the present study, amphiphilic polymer was used to coat VV, leading to reduced binding of a neutralizing anti-VV antibody (81.8% of polymer-coated VV [PCVV] staining positive versus 97.1% of VV [p = 0.0038]). Attachment of anti-mucin-1 (aMUC1) targeting antibody, to give aMUC1-PCVV, enabled binding of the construct to MUC1. In high MUC1 expressing CAPAN-2 cells, infection with PCVV was reduced compared to VV, while infection was restored with aMUC1-PCVV. Pharmacokinetics of aMUC1-PCVV, PCVV, and VV were evaluated. After intravenous (i.v.) injection of 1 × 108 viral genomes (VG) or 5 × 108 VG, circulation time for PCVV and aMUC1-PCVV was increased, with ~5-fold higher circulating dose at 5 min versus VV.
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Affiliation(s)
- Claudia Hill
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Megan Grundy
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Luca Bau
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Sheena Wallington
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Joel Balkaran
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Victor Ramos
- Grup d’Enginyeria de Materials, Institut Quimic de Sarria, Universitat Ramon Llull, Barcelona, Spain
| | - Kerry Fisher
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - Len Seymour
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - Constantin Coussios
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
| | - Robert Carlisle
- Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
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Béguin J, Kohlhauer M, Laloy E, Degorce F, Moreau B, Quéméneur É, Erbs P, Klonjkowski B, Maurey C. Pharmacokinetics and tolerance of repeated oral administration of 5-fluorocytosine in healthy dogs. BMC Vet Res 2021; 17:220. [PMID: 34154593 PMCID: PMC8218522 DOI: 10.1186/s12917-021-02927-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/19/2021] [Indexed: 11/10/2022] Open
Abstract
Background 5-fluorocytosine is a pyrimidine and a fluorinated cytosine analog mainly used as an antifungal agent. It is a precursor of 5-fluorouracil, which possesses anticancer properties. To reduce systemic toxicity of 5-fluorouracil during chemotherapy, 5- fluorocytosine can be used as a targeted anticancer agent. Expression of cytosine deaminase by a viral vector within a tumor allows targeted chemotherapy by converting 5-fluorocytosine into the cytotoxic chemotherapeutic agent 5-fluorouracil. However, little is known about the tolerance of 5-fluorocytosine in dogs after prolonged administration. Results In three healthy Beagle dogs receiving 100 mg/kg of 5-fluorocytosine twice daily for 14 days by oral route, non-compartmental pharmacokinetics revealed a terminal elimination half-life of 164.5 ± 22.5 min at day 1 and of 179.2 ± 11.5 min, after 7 days of administration. Clearance was significantly decreased between day 1 and day 7 with 0.386 ± 0.031 and 0.322 ± 0.027 ml/min/kg, respectively. Maximal plasma concentration values were below 100 µg/ml, which is considered within the therapeutic margin for human patients. 5-fluorouracil plasma concentration was below the limit of detection at all time points. The main adverse events consisted of depigmented, ulcerated, exudative, and crusty cutaneous lesions 10 to 13 days after beginning 5-fluorocytosine administration. The lesions were localized to the nasal planum, the lips, the eyelids, and the scrotum. Histological analyses were consistent with a cutaneous lupoid drug reaction. Complete healing was observed 15 to 21 days after cessation of 5-fluorocytosine. No biochemical or hematological adverse events were noticed. Conclusions Long term administration of 5-fluorocytosine was associated with cutaneous toxicity in healthy dogs. It suggests that pharmacotherapy should be adjusted to reduce the toxicity of 5-fluorocytosine in targeted chemotherapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-02927-5.
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Affiliation(s)
- Jérémy Béguin
- UMR Virologie, INRAE, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France. .,Department of Internal Medicine, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France. .,Transgene, Illkirch-Graffenstaden, Strasbourg, France.
| | - Matthias Kohlhauer
- U955 - IMRB Inserm, École Nationale Vétérinaire d'Alfort, UPEC, F-94700, Maisons-Alfort, France.,Pharmacology-Toxicology Unit, École Nationale Vétérinaire d'Alfort, Université Paris-Est, F-94700, Maisons-Alfort, France
| | - Eve Laloy
- Anatomical Pathology Unit, Biopôle Alfort, École Nationale Vétérinaire d'Alfort, Université Paris-Est, F-94700, Maisons-Alfort, France
| | - Frédérique Degorce
- Laboratoire d'Anatomie Pathologique Vétérinaire du Sud-Ouest, Toulouse, France
| | | | | | - Philippe Erbs
- Transgene, Illkirch-Graffenstaden, Strasbourg, France
| | - Bernard Klonjkowski
- UMR Virologie, INRAE, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Christelle Maurey
- Department of Internal Medicine, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
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Chianese A, Santella B, Ambrosino A, Stelitano D, Rinaldi L, Galdiero M, Zannella C, Franci G. Oncolytic Viruses in Combination Therapeutic Approaches with Epigenetic Modulators: Past, Present, and Future Perspectives. Cancers (Basel) 2021; 13:cancers13112761. [PMID: 34199429 PMCID: PMC8199618 DOI: 10.3390/cancers13112761] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/28/2021] [Accepted: 05/29/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Cancer rates have been accelerating significantly in recent years. Despite notable advances having been made in cancer therapy, and numerous studies being currently conducted in clinical trials, research is always looking for new treatment. Novel and promising anticancer therapies comprise combinations of oncolytic viruses and epigenetic modulators, including chromatin modifiers, such as DNA methyltransferase and histone deacetylases, and microRNA. Combinatorial treatments have several advantages: they enhance viral entry, replication, and spread between proximal cells and, moreover, they strengthen the immune response. In this review we summarize the main combination of therapeutic approaches, giving an insight into past, present, and future perspectives. Abstract According to the World Cancer Report, cancer rates have been increased by 50% with 15 million new cases in the year 2020. Hepatocellular carcinoma (HCC) is the only one of the most common tumors to cause a huge increase in mortality with a survival rate between 40% and 70% at 5 years, due to the high relapse and limitations associated with current therapies. Despite great progress in medicine, oncological research is always looking for new therapies: different technologies have been evaluated in clinical trials and others have been already used in clinics. Among them, oncolytic virotherapy represents a therapeutic option with a widespread possibility of approaches and applications. Oncolytic viruses are naturally occurring, or are engineered, viruses characterized by the unique features of preferentially infecting, replicating, and lysing malignant tumor cells, as well as activating the immune response. The combination of oncolytic virotherapy and chemical drugs are arousing great interest in the tumor treatment. In this scenario, novel and promising anticancer therapies comprise combinations of oncolytic viruses and epigenetic modulators or inhibitors of the signalling pathways. Combination treatments are required to improve the immune response and allow viral entry, replication, and diffusion between proximal cells. In this review, we summarize all combination therapies associated with virotherapy, including co-administered inhibitors of chromatin modifiers (combination strategies) and inserted target sites for miRNAs (recombination or arming strategies).
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Affiliation(s)
- Annalisa Chianese
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.C.); (A.A.); (D.S.); (M.G.)
| | - Biagio Santella
- Section of Microbiology and Virology, University Hospital “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Annalisa Ambrosino
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.C.); (A.A.); (D.S.); (M.G.)
| | - Debora Stelitano
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.C.); (A.A.); (D.S.); (M.G.)
| | - Luca Rinaldi
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Massimiliano Galdiero
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.C.); (A.A.); (D.S.); (M.G.)
- Section of Microbiology and Virology, University Hospital “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Carla Zannella
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.C.); (A.A.); (D.S.); (M.G.)
- Correspondence: (C.Z.); (G.F.)
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy
- Correspondence: (C.Z.); (G.F.)
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Kurosaki H, Nakatake M, Sakamoto T, Kuwano N, Yamane M, Ishii K, Fujiwara Y, Nakamura T. Anti-Tumor Effects of MAPK-Dependent Tumor-Selective Oncolytic Vaccinia Virus Armed with CD/UPRT against Pancreatic Ductal Adenocarcinoma in Mice. Cells 2021; 10:cells10050985. [PMID: 33922406 PMCID: PMC8145488 DOI: 10.3390/cells10050985] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023] Open
Abstract
Engineered vaccinia virus serves as an oncolytic virus for cancer virotherapy. We evaluated the oncolytic characteristics of VGF- and O1-deleted recombinant mitogen-activated protein kinase (MAPK)-dependent vaccinia virus (MDRVV). We found that compared with viruses with the deletion of either gene alone, MDRVV is more attenuated in normal cells and can replicate in cancer cells that exhibit constitutive ERK1/2 activation in the MAPK pathway. We armed MDRVV with a bifunctional fusion gene encoding cytosine deaminase and uracil phosphoribosyltransferase (CD/UPRT), which converts 5-fluorocytosine (5-FC) into chemotherapeutic agents, and evaluated its oncolytic activity alone or in combination with 5-FC in human pancreatic cancer cell lines, tumor mouse models of peritoneal dissemination and liver metastasis, and ex vivo-infected live pancreatic cancer patient-derived tissues. CD/UPRT-armed MDRVV alone could efficiently eliminate pancreatic cancers, and its antitumor effects were partially enhanced in combination with 5-FC in vitro and in vivo. Moreover, the replication of MDRVV was detected in tumor cells of patient-derived, surgically resected tissues, which showed enlarged nuclei and high expression of pERK1/2 and Ki-67, and not in stromal cells. Our findings suggest that systemic injections of CD/UPRT-armed MDRVV alone or in combination with 5-FC are promising therapeutic strategies for pancreatic ductal adenocarcinoma.
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Affiliation(s)
- Hajime Kurosaki
- Division of Molecular Medicine, Department of Genomic Medicine and Regenerative Therapy, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (H.K.); (M.N.); (N.K.); (M.Y.); (K.I.)
| | - Motomu Nakatake
- Division of Molecular Medicine, Department of Genomic Medicine and Regenerative Therapy, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (H.K.); (M.N.); (N.K.); (M.Y.); (K.I.)
| | - Teruhisa Sakamoto
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan; (T.S.); (Y.F.)
| | - Nozomi Kuwano
- Division of Molecular Medicine, Department of Genomic Medicine and Regenerative Therapy, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (H.K.); (M.N.); (N.K.); (M.Y.); (K.I.)
| | - Masato Yamane
- Division of Molecular Medicine, Department of Genomic Medicine and Regenerative Therapy, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (H.K.); (M.N.); (N.K.); (M.Y.); (K.I.)
| | - Kenta Ishii
- Division of Molecular Medicine, Department of Genomic Medicine and Regenerative Therapy, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (H.K.); (M.N.); (N.K.); (M.Y.); (K.I.)
| | - Yoshiyuki Fujiwara
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan; (T.S.); (Y.F.)
| | - Takafumi Nakamura
- Division of Molecular Medicine, Department of Genomic Medicine and Regenerative Therapy, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (H.K.); (M.N.); (N.K.); (M.Y.); (K.I.)
- Correspondence: ; Tel.: +81-859-38-7550; Fax: +81-859-38-6422
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Wu TM, Liu JB, Liu Y, Shi Y, Li W, Wang GR, Ma YS, Fu D. Power and Promise of Next-Generation Sequencing in Liquid Biopsies and Cancer Control. Cancer Control 2021; 27:1073274820934805. [PMID: 32806937 PMCID: PMC7791471 DOI: 10.1177/1073274820934805] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Traditional methods of cancer treatment are usually based on the morphological
and histological diagnosis of tumors, and they are not optimized according to
the specific situation. Precision medicine adjusts the existing treatment
regimen based on the patient’s genomic information to make it most suitable for
patients. Detection of genetic mutations in tumors is the basis of precise
cancer medicine. Through the analysis of genetic mutations in patients with
cancer, we can tailor the treatment plan for each patient with cancer to
maximize the curative effect, minimize damage to healthy tissues, and optimize
resources. In recent years, next-generation sequencing technology has developed
rapidly and has become the core technology of precise targeted therapy and
immunotherapy for cancer. From early cancer screening to treatment guidance for
patients with advanced cancer, liquid biopsy is increasingly used in cancer
management. This is as a result of the development of better noninvasive,
repeatable, sensitive, and accurate tools used in early screening, diagnosis,
evaluation, and monitoring of patients. Cell-free DNA, which is a new
noninvasive molecular pathological detection method, often carries
tumor-specific gene changes. It plays an important role in optimizing treatment
and evaluating the efficacy of different treatment options in clinical trials,
and it has broad clinical applications.
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Affiliation(s)
- Ting-Miao Wu
- Department of Radiology, 12485The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ji-Bin Liu
- Cancer Institute, 377323Nantong Tumor Hospital, Nantong, China
| | - Yu Liu
- National Engineering Laboratory for Rice and By-product Deep Processing, College of Food Science and Engineering, 12571Central South University of Forestry and Technology, Chaha, China
| | - Yi Shi
- National Engineering Laboratory for Rice and By-product Deep Processing, College of Food Science and Engineering, 12571Central South University of Forestry and Technology, Chaha, China
| | - Wen Li
- National Engineering Laboratory for Rice and By-product Deep Processing, College of Food Science and Engineering, 12571Central South University of Forestry and Technology, Chaha, China
| | - Gao-Ren Wang
- Cancer Institute, 377323Nantong Tumor Hospital, Nantong, China
| | - Yu-Shui Ma
- Cancer Institute, 377323Nantong Tumor Hospital, Nantong, China.,Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, 12476Tongji University School of Medicine, Shanghai, China
| | - Da Fu
- Department of Radiology, 12485The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China.,Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, 12476Tongji University School of Medicine, Shanghai, China
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Stavrakaki E, Dirven CMF, Lamfers MLM. Personalizing Oncolytic Virotherapy for Glioblastoma: In Search of Biomarkers for Response. Cancers (Basel) 2021; 13:cancers13040614. [PMID: 33557101 PMCID: PMC7913874 DOI: 10.3390/cancers13040614] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/29/2021] [Accepted: 01/29/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Glioblastoma (GBM) is the most frequent and aggressive primary brain tumor. Despite multimodal treatment, the prognosis of GBM patients remains very poor. Oncolytic virotherapy is being evaluated as novel treatment for this patient group and clinical trials testing oncolytic viruses have shown impressive responses, albeit in a small subset of GBM patients. Obtaining insight into specific tumor- or patient-related characteristics of the responding patients, may in the future improve response rates. In this review we discuss factors related to oncolytic activity of the most widely applied oncolytic virus strains as well as potential biomarkers and future assays that may allow us to predict response to these agents. Such biomarkers and tools may in the future enable personalizing oncolytic virotherapy for GBM patients. Abstract Oncolytic virus (OV) treatment may offer a new treatment option for the aggressive brain tumor glioblastoma. Clinical trials testing oncolytic viruses in this patient group have shown promising results, with patients achieving impressive long-term clinical responses. However, the number of responders to each OV remains low. This is thought to arise from the large heterogeneity of these tumors, both in terms of molecular make-up and their immune-suppressive microenvironment, leading to variability in responses. An approach that may improve response rates is the personalized utilization of oncolytic viruses against Glioblastoma (GBM), based on specific tumor- or patient-related characteristics. In this review, we discuss potential biomarkers for response to different OVs as well as emerging ex vivo assays that in the future may enable selection of optimal OV for a specific patient and design of stratified clinical OV trials for GBM.
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Monie DD, Bhandarkar AR, Parney IF, Correia C, Sarkaria JN, Vile RG, Li H. Synthetic and systems biology principles in the design of programmable oncolytic virus immunotherapies for glioblastoma. Neurosurg Focus 2021; 50:E10. [PMID: 33524942 DOI: 10.3171/2020.12.focus20855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/04/2020] [Indexed: 12/11/2022]
Abstract
Oncolytic viruses (OVs) are a class of immunotherapeutic agents with promising preclinical results for the treatment of glioblastoma (GBM) but have shown limited success in recent clinical trials. Advanced bioengineering principles from disciplines such as synthetic and systems biology are needed to overcome the current challenges faced in developing effective OV-based immunotherapies for GBMs, including off-target effects and poor clinical responses. Synthetic biology is an emerging field that focuses on the development of synthetic DNA constructs that encode networks of genes and proteins (synthetic genetic circuits) to perform novel functions, whereas systems biology is an analytical framework that enables the study of complex interactions between host pathways and these synthetic genetic circuits. In this review, the authors summarize synthetic and systems biology concepts for developing programmable, logic-based OVs to treat GBMs. Programmable OVs can increase selectivity for tumor cells and enhance the local immunological response using synthetic genetic circuits. The authors discuss key principles for developing programmable OV-based immunotherapies, including how to 1) select an appropriate chassis, a vector that carries a synthetic genetic circuit, and 2) design a synthetic genetic circuit that can be programmed to sense key signals in the GBM microenvironment and trigger release of a therapeutic payload. To illustrate these principles, some original laboratory data are included, highlighting the need for systems biology studies, as well as some preliminary network analyses in preparation for synthetic biology applications. Examples from the literature of state-of-the-art synthetic genetic circuits that can be packaged into leading candidate OV chassis are also surveyed and discussed.
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Affiliation(s)
- Dileep D Monie
- Departments of1Immunology.,6Mayo Clinic Alix School of Medicine.,7Mayo Clinic Graduate School of Biomedical Sciences; and Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | | | | | - Cristina Correia
- 5Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic
| | | | | | - Hu Li
- 5Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic
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Béguin J, Gantzer M, Farine I, Foloppe J, Klonjkowski B, Maurey C, Quéméneur É, Erbs P. Safety, biodistribution and viral shedding of oncolytic vaccinia virus TG6002 administered intravenously in healthy beagle dogs. Sci Rep 2021; 11:2209. [PMID: 33500518 PMCID: PMC7838210 DOI: 10.1038/s41598-021-81831-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/11/2021] [Indexed: 01/30/2023] Open
Abstract
Oncolytic virotherapy is an emerging strategy that uses replication-competent viruses to kill tumor cells. We have reported the oncolytic effects of TG6002, a recombinant oncolytic vaccinia virus, in preclinical human xenograft models and canine tumor explants. To assess the safety, biodistribution and shedding of TG6002 administered by the intravenous route, we conducted a study in immune-competent healthy dogs. Three dogs each received a single intravenous injection of TG6002 at 105 PFU/kg, 106 PFU/kg or 107 PFU/kg, and one dog received three intravenous injections at 107 PFU/kg. The injections were well tolerated without any clinical, hematological or biochemical adverse events. Viral genomes were only detected in blood at the earliest sampling time point of one-hour post-injection at 107 PFU/kg. Post mortem analyses at day 35 allowed detection of viral DNA in the spleen of the dog which received three injections at 107 PFU/kg. Viral genomes were not detected in the urine, saliva or feces of any dogs. Seven days after the injections, a dose-dependent antibody mediated immune response was identified. In conclusion, intravenous administration of TG6002 shows a good safety profile, supporting the initiation of clinical trials in canine cancer patients as well as further development as a human cancer therapy.
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Affiliation(s)
- Jérémy Béguin
- Transgene, Illkirch-Graffenstaden, France
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
- Department of Internal Medicine, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France
| | | | | | | | - Bernard Klonjkowski
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Christelle Maurey
- Department of Internal Medicine, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France
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Coënon L, Battistoni A, Poupée-Beaugé A, Germon S, Dimier-Poisson I. [Antitumoral microorganisms: The Swiss army knife of immunotherapy]. Med Sci (Paris) 2021; 37:47-52. [PMID: 33492218 DOI: 10.1051/medsci/2020259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Research on viruses, bacteria and protozoa-based immunotherapy has been on the rise for several years. The antitumoral efficacy of these microorganisms relies on three main mechanisms: Destruction of tumor cells, stimulation of the immune response and reprogramming of the tumor microenvironment. In order to optimize their immunotherapeutic action, these microorganisms can be genetically engineered to enhance their tumor-targeting efficacy or to vectorize immunostimulating molecules and/or antibodies. To this aim, molecular engineering allows the design of new antibody formats optimizing their functions. From whole antibodies to tandem single-chain variable fragments, various antibody formats can be vectorized by microorganisms to target receptors such as immune checkpoints or recruit immune effector cells within the tumor. Such possibilities broaden the arsenal of immunotherapeutic cancer treatment. This review focuses on these innovations and their advantages for immunotherapy.
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Affiliation(s)
- Loïs Coënon
- Équipe BioMAP, Université de Tours, INRAe, 31 avenue Monge, 37200 Tours, France
| | - Arthur Battistoni
- Équipe BioMAP, Université de Tours, INRAe, 31 avenue Monge, 37200 Tours, France
| | | | - Stéphanie Germon
- Équipe BioMAP, Université de Tours, INRAe, 31 avenue Monge, 37200 Tours, France
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Nair S, Mazzoccoli L, Jash A, Govero J, Bais SS, Hu T, Fontes-Garfias CR, Shan C, Okada H, Shresta S, Rich JN, Shi PY, Diamond MS, Chheda MG. Zika virus oncolytic activity requires CD8+ T cells and is boosted by immune checkpoint blockade. JCI Insight 2021; 6:144619. [PMID: 33232299 PMCID: PMC7821591 DOI: 10.1172/jci.insight.144619] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a fatal human cancer in part because GBM stem cells are resistant to therapy and recurrence is inevitable. Previously, we demonstrated Zika virus (ZIKV) targets GBM stem cells and prevents death of mice with gliomas. Here, we evaluated the immunological basis of ZIKV-mediated protection against GBM. Introduction of ZIKV into the brain tumor increased recruitment of CD8+ T and myeloid cells to the tumor microenvironment. CD8+ T cells were required for ZIKV-dependent tumor clearance because survival benefits were lost with CD8+ T cell depletion. Moreover, while anti–PD-1 antibody monotherapy moderately improved tumor survival, when coadministered with ZIKV, survival increased. ZIKV-mediated tumor clearance also resulted in durable protection against syngeneic tumor rechallenge, which also depended on CD8+ T cells. To address safety concerns, we generated an immune-sensitized ZIKV strain, which was effective alone or in combination with immunotherapy. Thus, oncolytic ZIKV treatment can be leveraged by immunotherapies, which may prompt combination treatment paradigms for adult patients with GBM.
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Affiliation(s)
- Sharmila Nair
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Luciano Mazzoccoli
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Arijita Jash
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jennifer Govero
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Sachendra S Bais
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Tong Hu
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Camila R Fontes-Garfias
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Chao Shan
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Hideho Okada
- Department of Neurological Surgery and.,Parker Institute for Cancer Immunotherapy, University of California San Francisco, San Francisco, California, USA
| | - Sujan Shresta
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California, USA
| | - Jeremy N Rich
- Division of Regenerative Medicine, Department of Medicine, and.,Department of Neurosciences, University of California School of Medicine, San Diego, La Jolla, California, USA.,Sanford Consortium for Regenerative Medicine, La Jolla, California, USA
| | - Pei-Yong Shi
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.,Department of Pharmacology and Toxicology and.,Sealy Center for Structural Biology and Molecular Biophysics and Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, Texas, USA
| | - Michael S Diamond
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.,Department of Pathology & Immunology.,Department of Molecular Microbiology.,The Andrew M. and Jane M. Bursky Center for Human Immunology & Immunotherapy Programs, and
| | - Milan G Chheda
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.,Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
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44
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Mozhei O, G. Teschemacher A, Kasparov S. Viral Vectors as Gene Therapy Agents for Treatment of Glioblastoma. Cancers (Basel) 2020; 12:E3724. [PMID: 33322507 PMCID: PMC7764372 DOI: 10.3390/cancers12123724] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 01/02/2023] Open
Abstract
In this review, we scrutinize the idea of using viral vectors either as cytotoxic agents or gene delivery tools for treatment of glioblastoma multiforme (GBM) in light of the experience that our laboratory has accumulated over ~20 years when using similar vectors in experimental neuroscience. We review molecular strategies and current clinical trials and argue that approaches which are based on targeting a specific biochemical pathway or a characteristic mutation are inherently prone to failure because of the high genomic instability and clonal selection characteristics of GBM. For the same reasons, attempts to develop a viral system which selectively transduces only GBM cells are also unlikely to be universally successful. One of the common gene therapy approaches is to use cytotoxic viruses which replicate and cause preferential lysis of the GBM cells. This strategy, in addition to its reliance on the specific biochemical makeup of the GBM cells, bears a risk of necrotic cell death accompanied by release of large quantities of pro-inflammatory molecules. On the other hand, engaging the immune system in the anti-GBM response seems to be a potential avenue to explore further. We suggest that a plausible strategy is to focus on viral vectors which efficiently transduce brain cells via a non-selective, ubiquitous mechanism and which target (ideally irreversibly) processes that are critical only for dividing tumor cells and are dispensable for quiescent brain cells.
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Affiliation(s)
- Oleg Mozhei
- School of Life Sciences, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia
| | - Anja G. Teschemacher
- School of Physiology, Neuroscience and Pharmacology, University of Bristol, Bristol BS8 1TD, UK;
| | - Sergey Kasparov
- School of Life Sciences, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia
- School of Physiology, Neuroscience and Pharmacology, University of Bristol, Bristol BS8 1TD, UK;
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Sasso E, D'Alise AM, Zambrano N, Scarselli E, Folgori A, Nicosia A. New viral vectors for infectious diseases and cancer. Semin Immunol 2020; 50:101430. [PMID: 33262065 DOI: 10.1016/j.smim.2020.101430] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/23/2020] [Accepted: 11/16/2020] [Indexed: 12/12/2022]
Abstract
Since the discovery in 1796 by Edward Jenner of vaccinia virus as a way to prevent and finally eradicate smallpox, the concept of using a virus to fight another virus has evolved into the current approaches of viral vectored genetic vaccines. In recent years, key improvements to the vaccinia virus leading to a safer version (Modified Vaccinia Ankara, MVA) and the discovery that some viruses can be used as carriers of heterologous genes encoding for pathological antigens of other infectious agents (the concept of 'viral vectors') has spurred a new wave of clinical research potentially providing for a solution for the long sought after vaccines against major diseases such as HIV, TB, RSV and Malaria, or emerging infectious diseases including those caused by filoviruses and coronaviruses. The unique ability of some of these viral vectors to stimulate the cellular arm of the immune response and, most importantly, T lymphocytes with cell killing activity, has also reawakened the interest toward developing therapeutic vaccines against chronic infectious diseases and cancer. To this end, existing vectors such as those based on Adenoviruses have been improved in immunogenicity and efficacy. Along the same line, new vectors that exploit viruses such as Vesicular Stomatitis Virus (VSV), Measles Virus (MV), Lymphocytic choriomeningitis virus (LCMV), cytomegalovirus (CMV), and Herpes Simplex Virus (HSV), have emerged. Furthermore, technological progress toward modifying their genome to render some of these vectors incompetent for replication has increased confidence toward their use in infant and elderly populations. Lastly, their production process being the same for every product has made viral vectored vaccines the technology of choice for rapid development of vaccines against emerging diseases and for 'personalised' cancer vaccines where there is an absolute need to reduce time to the patient from months to weeks or days. Here we review the recent developments in viral vector technologies, focusing on novel vectors based on primate derived Adenoviruses and Poxviruses, Rhabdoviruses, Paramixoviruses, Arenaviruses and Herpesviruses. We describe the rationale for, immunologic mechanisms involved in, and design of viral vectored gene vaccines under development and discuss the potential utility of these novel genetic vaccine approaches in eliciting protection against infectious diseases and cancer.
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Affiliation(s)
- Emanuele Sasso
- Nouscom srl, Via di Castel Romano 100, 00128 Rome, Italy; Ceinge-Biotecnologie Avanzate S.C. A.R.L., via Gaetano Salvatore 486, 80145 Naples, Italy.
| | | | - Nicola Zambrano
- Ceinge-Biotecnologie Avanzate S.C. A.R.L., via Gaetano Salvatore 486, 80145 Naples, Italy; Department of Molecular Medicine and Medical Biotechnology, University Federico II, Via Pansini 5, 80131 Naples, Italy.
| | | | | | - Alfredo Nicosia
- Ceinge-Biotecnologie Avanzate S.C. A.R.L., via Gaetano Salvatore 486, 80145 Naples, Italy; Department of Molecular Medicine and Medical Biotechnology, University Federico II, Via Pansini 5, 80131 Naples, Italy.
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Gallardo F, Schmitt D, Brandely R, Brua C, Silvestre N, Findeli A, Foloppe J, Top S, Kappler-Gratias S, Quentin-Froignant C, Morin R, Lagarde JM, Bystricky K, Bertagnoli S, Erbs P. Fluorescent Tagged Vaccinia Virus Genome Allows Rapid and Efficient Measurement of Oncolytic Potential and Discovery of Oncolytic Modulators. Biomedicines 2020; 8:biomedicines8120543. [PMID: 33256205 PMCID: PMC7760631 DOI: 10.3390/biomedicines8120543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
As a live biologic agent, oncolytic vaccinia virus has the ability to target and selectively amplify at tumor sites. We have previously reported that deletion of thymidine kinase and ribonucleotide reductase genes in vaccinia virus can increase the safety and efficacy of the virus. Here, to allow direct visualization of the viral genome in living cells, we incorporated the ANCH target sequence and the OR3-Santaka gene in the double-deleted vaccinia virus. Infection of human tumor cells with ANCHOR3-tagged vaccinia virus enables visualization and quantification of viral genome dynamics in living cells. The results show that the ANCHOR technology permits the measurement of the oncolytic potential of the double deleted vaccinia virus. Quantitative analysis of infection kinetics and of viral DNA replication allow rapid and efficient identification of inhibitors and activators of oncolytic activity. Our results highlight the potential application of the ANCHOR technology to track vaccinia virus and virtually any kind of poxvirus in living cells.
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Affiliation(s)
- Franck Gallardo
- NeoVirTech SAS, 31106 Toulouse, France; (S.T.); (S.K.-G.); (C.Q.-F.)
- Correspondence: (F.G.); (P.E.)
| | - Doris Schmitt
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
| | - Renée Brandely
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
| | - Catherine Brua
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
| | - Nathalie Silvestre
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
| | - Annie Findeli
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
| | - Johann Foloppe
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
| | - Sokunthea Top
- NeoVirTech SAS, 31106 Toulouse, France; (S.T.); (S.K.-G.); (C.Q.-F.)
| | | | | | - Renaud Morin
- Imactiv-3D SAS, 31106 Toulouse, France; (R.M.); (J.-M.L.)
| | | | - Kerstin Bystricky
- Centre de Biologie Intégrative (CBI), Laboratoire de Biologie Moléculaire Eucaryote (LBME), University of Toulouse, UPS, CNRS, 31400 Toulouse, France;
- Institut Universitaire de France (IUF), 75231 Paris, France
| | | | - Philippe Erbs
- Transgene SA, 67405 Illkirch-Graffenstaden, France; (D.S.); (R.B.); (C.B.); (N.S.); (A.F.); (J.F.)
- Correspondence: (F.G.); (P.E.)
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47
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Oncolytic Viruses as a Platform for the Treatment of Malignant Brain Tumors. Int J Mol Sci 2020; 21:ijms21207449. [PMID: 33050329 PMCID: PMC7589928 DOI: 10.3390/ijms21207449] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/07/2020] [Accepted: 10/07/2020] [Indexed: 12/11/2022] Open
Abstract
Malignant brain tumors remain incurable diseases. Although much effort has been devoted to improving patient outcome, multiple factors such as the high tumor heterogeneity, the strong tumor-induced immunosuppressive microenvironment, and the low mutational burden make the treatment of these tumors especially challenging. Thus, novel therapeutic strategies are urgent. Oncolytic viruses (OVs) are biotherapeutics that have been selected or engineered to infect and selectively kill cancer cells. Increasingly, preclinical and clinical studies demonstrate the ability of OVs to recruit T cells and induce durable immune responses against both virus and tumor, transforming a “cold” tumor microenvironment into a “hot” environment. Besides promising clinical results as a monotherapy, OVs can be powerfully combined with other cancer therapies, helping to overcome critical barriers through the creation of synergistic effects in the fight against brain cancer. Although many questions remain to be answered to fully exploit the therapeutic potential of OVs, oncolytic virotherapy will clearly be part of future treatments for patients with malignant brain tumors.
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Delaunay T, Nader J, Grard M, Farine I, Hedwig V, Foloppe J, Blondy T, Violland M, Pouliquen D, Grégoire M, Boisgerault N, Erbs P, Fonteneau JF. High Oncolytic Activity of a Double-Deleted Vaccinia Virus Copenhagen Strain against Malignant Pleural Mesothelioma. MOLECULAR THERAPY-ONCOLYTICS 2020; 18:573-578. [PMID: 32995481 PMCID: PMC7501423 DOI: 10.1016/j.omto.2020.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 08/19/2020] [Indexed: 12/01/2022]
Abstract
Malignant pleural mesothelioma (MPM) is a cancer of the pleura that lacks efficient treatment. Oncolytic immunotherapy using oncolytic vaccinia virus (VV) may represent an alternative therapeutic approach for the treatment of this malignancy. Here, we studied the oncolytic activity of VV thymidine kinase (TK)-ribonucleotide reductase (RR)-/green fluorescent protein (GFP) against MPM. This virus is a VV from the Copenhagen strain that is deleted of two genes encoding the TK (J2R) and the RR (I4L) and that express the GFP. First, we show in vitro that VVTK-RR-/GFP efficiently infects and kills the twenty-two human MPM cell lines used in this study. We also show that the virus replicates in all eight tested MPM cell lines, however, with approximately a 10-fold difference in the amplification level from one cell line to another. Then, we studied the therapeutic efficiency of VVTK-RR-/GFP in non-obese diabetic (NOD) severe combined immunodeficient (SCID) mice that bear peritoneal human MPM tumors. One intraperitoneal infection of VVTK-RR-/GFP reduces the tumor burden and significantly increases mice survival compared to untreated animals. Thus, VVTK-RR- may be a promising oncolytic virus (OV) for the oncolytic immunotherapy of MPM.
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Affiliation(s)
- Tiphaine Delaunay
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | - Joelle Nader
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | - Marion Grard
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | | | | | | | - Thibaut Blondy
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | - Mathilde Violland
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | - Daniel Pouliquen
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | - Marc Grégoire
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | - Nicolas Boisgerault
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
| | | | - Jean-François Fonteneau
- CRCINA, INSERM, Université d'Angers, Université de Nantes, 44007 Nantes, France.,Labex IGO, Immunology Graft Oncology, 44007 Nantes, France
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Béguin J, Foloppe J, Maurey C, Laloy E, Hortelano J, Nourtier V, Pichon C, Cochin S, Cordier P, Huet H, Quemeneur E, Klonjkowski B, Erbs P. Preclinical Evaluation of the Oncolytic Vaccinia Virus TG6002 by Translational Research on Canine Breast Cancer. MOLECULAR THERAPY-ONCOLYTICS 2020; 19:57-66. [PMID: 33072863 PMCID: PMC7533293 DOI: 10.1016/j.omto.2020.08.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 08/29/2020] [Indexed: 12/12/2022]
Abstract
Oncolytic virotherapy is a promising therapeutic approach for the treatment of cancer. TG6002 is a recombinant oncolytic vaccinia virus deleted in the thymidine kinase and ribonucleotide reductase genes and armed with the suicide gene FCU1, which encodes a bifunctional chimeric protein that efficiently catalyzes the direct conversion of the nontoxic 5-fluorocytosine into the toxic metabolite 5-fluorouracil. In translational research, canine tumors and especially mammary cancers are relevant surrogates for human cancers and can be used as preclinical models. Here, we report that TG6002 is able to replicate in canine tumor cell lines and is oncolytic in such cells cultured in 2D or 3D as well as canine mammary tumor explants. Furthermore, intratumoral injections of TG6002 lead to inhibition of the proliferation of canine tumor cells grafted into mice. 5-fluorocytosine treatment of mice significantly improves the anti-tumoral activity of TG6002 infection, a finding that can be correlated with its conversion into 5-fluorouracil within infected fresh canine tumor biopsies. In conclusion, our study suggests that TG6002 associated with 5-fluorocytosine is a promising therapy for human and canine cancers.
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Affiliation(s)
- Jérémy Béguin
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, Maisons-Alfort 94700, France
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
- Service de Médecine Interne, Ecole Nationale Vétérinaire d’Alfort, Université Paris-Est, Maisons-Alfort, 94700, France
- Corresponding author: Jérémy Béguin, UMR Virologie, INRA, Ecole Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, 7 Avenue du Général de Gaulle, Maisons-Alfort 94700, France.
| | - Johann Foloppe
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Christelle Maurey
- Service de Médecine Interne, Ecole Nationale Vétérinaire d’Alfort, Université Paris-Est, Maisons-Alfort, 94700, France
| | - Eve Laloy
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, Maisons-Alfort 94700, France
- Laboratoire d’Anatomo-cytopathologie, Biopôle Alfort, Ecole Nationale Vétérinaire d’Alfort, Université Paris-Est, Maisons-Alfort 94700, France
| | - Julie Hortelano
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Virginie Nourtier
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Christelle Pichon
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Sandrine Cochin
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Pascale Cordier
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Hélène Huet
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, Maisons-Alfort 94700, France
- Laboratoire d’Anatomo-cytopathologie, Biopôle Alfort, Ecole Nationale Vétérinaire d’Alfort, Université Paris-Est, Maisons-Alfort 94700, France
| | - Eric Quemeneur
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
| | - Bernard Klonjkowski
- UMR Virologie, INRA, Ecole Nationale Vétérinaire d’Alfort, ANSES, Université Paris-Est, Maisons-Alfort 94700, France
| | - Philippe Erbs
- Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France
- Corresponding author: Philippe Erbs, Transgene S.A., 400 Boulevard Gonthier d’Andernach, Parc d’innovation, CS80166, Illkirch-Graffenstaden Cedex 67405, France.
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50
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Safety studies and viral shedding of intramuscular administration of oncolytic vaccinia virus TG6002 in healthy beagle dogs. BMC Vet Res 2020; 16:307. [PMID: 32843040 PMCID: PMC7446062 DOI: 10.1186/s12917-020-02524-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/14/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Cancer is a leading cause of mortality for both humans and dogs. As spontaneous canine cancers appear to be relevant models of human cancers, developing new therapeutic approaches could benefit both species. Oncolytic virotherapy is a promising therapeutic approach in cancer treatment. TG6002 is a recombinant oncolytic vaccinia virus deleted in the thymidine kinase and ribonucleotide reductase genes and armed with the suicide gene FCU1 that encodes a protein which catalyses the conversion of the non-toxic 5-fluorocytosine into the toxic metabolite 5-fluorouracil. Previous studies have shown the ability of TG6002 to infect and replicate in canine tumor cell lines, and demonstrated its oncolytic potency in cell lines, xenograft models and canine mammary adenocarcinoma explants. Moreover, 5-fluorouracil synthesis has been confirmed in fresh canine mammary adenocarcinoma explants infected with TG6002 with 5-fluorocytosine. This study aims at assessing the safety profile and viral shedding after unique or repeated intramuscular injections of TG6002 in seven healthy Beagle dogs. RESULTS Repeated intramuscular administrations of TG6002 at the dose of 5 × 107 PFU/kg resulted in no clinical or biological adverse effects. Residual TG6002 in blood, saliva, urine and feces of treated dogs was not detected by infectious titer assay nor by qPCR, ensuring the safety of the virus in the dogs and their environment. CONCLUSIONS These results establish the good tolerability of TG6002 in healthy dogs with undetectable viral shedding after multiple injections. This study supports the initiation of further studies in canine cancer patients to evaluate the oncolytic potential of TG6002 and provides critical data for clinical development of TG6002 as a human cancer therapy.
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