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Stergiopoulos GM, Concilio SC, Galanis E. An Update on the Clinical Status, Challenges, and Future Directions of Oncolytic Virotherapy for Malignant Gliomas. Curr Treat Options Oncol 2024; 25:952-991. [PMID: 38896326 DOI: 10.1007/s11864-024-01211-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2024] [Indexed: 06/21/2024]
Abstract
OPINION STATEMENT Malignant gliomas are common central nervous system tumors that pose a significant clinical challenge due to the lack of effective treatments. Glioblastoma (GBM), a grade 4 malignant glioma, is the most prevalent primary malignant brain tumor and is associated with poor prognosis. Current clinical trials are exploring various strategies to combat GBM, with oncolytic viruses (OVs) appearing particularly promising. In addition to ongoing and recently completed clinical trials, one OV (Teserpaturev, Delytact®) received provisional approval for GBM treatment in Japan. OVs are designed to selectively target and eliminate cancer cells while promoting changes in the tumor microenvironment that can trigger and support long-lasting anti-tumor immunity. OVs offer the potential to remodel the tumor microenvironment and reverse systemic immune exhaustion. Additionally, an increasing number of OVs are armed with immunomodulatory payloads or combined with immunotherapy approaches in an effort to promote anti-tumor responses in a tumor-targeted manner. Recently completed oncolytic virotherapy trials can guide the way for future treatment individualization through patient preselection, enhancing the likelihood of achieving the highest possible clinical success. These trials also offer valuable insight into the numerous challenges inherent in malignant glioma treatment, some of which OVs can help overcome.
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Affiliation(s)
| | | | - Evanthia Galanis
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Oncology, Mayo Clinic, Rochester, MN, USA.
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Mei S, Peng S, Vong EG, Zhan J. A dual-functional oncolytic adenovirus ZD55-aPD-L1 scFv armed with PD-L1 inhibitor potentiates its antitumor activity. Int Immunopharmacol 2024; 128:111579. [PMID: 38278066 DOI: 10.1016/j.intimp.2024.111579] [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: 11/28/2023] [Revised: 01/15/2024] [Accepted: 01/20/2024] [Indexed: 01/28/2024]
Abstract
BACKGROUND Clinical data indicate that a substantial portion of cancer patients, though eligible for immune checkpoint inhibitor (ICI) therapy, cannot fully benefit from ICI monotherapy due to the poor immunogenicity of tumors and lack of tumor-infiltrating lymphocytes within the 'cold' tumor microenvironment (TME). In addition to poor antibody penetrance into the TME, systemic delivery of ICIs is associated with immune-related adverse events (irAEs) among recipients, some of which are life-threatening. Oncolytic virotherapy is a potentially viable approach to improving the efficacy of ICI therapy because of their ability to selectively replicate and lyse tumor cells, release tumor-associated antigens (TAAs), induce inflammatory response and promote lymphocyte infiltration in tumors. METHODS A recombinant oncolytic adenoviruses (OAd), denoted ZD55-aPD-L1 scFv, which carried the expression cassette for anti-PD-L1 scFv was constructed by molecular cloning. Western blot and ELISA assay were performed to detect aPD-L1 scFv expression. Flow cytometry were used to analyse PD-L1 expression and count tumor cells. Co-culture assay of human peripheral blood mononuclear cells (PBMCs) with tumor cells in vitro and triple-negative breast cancer (TNBC) MDA-MB-231 tumor-bearing model in vivo were evaluated the antitumor effects of recombinant oncolytic adenoviruses ZD55-aPD-L1 scFv. RESULTS We found that cells infected with recombinant oncolytic adenovirus ZD55-aPD-L1 scFv can effectively express aPD-L1 scFv, which function similarly to its full-length anti-PD-L1 antibody. PBMCs have inherently very limited killing effect on tumor cells even with administration of anti-PD-L1 antibody as observed from our in vitro co-cultures. Treatment consisting of ZD55 alone or ZD55 combined with anti-PD-L1 antibody yielded mediocre antitumor efficacy in subsequent in vitro and in vivo investigations, but were all substantially surpassed by the synergistic antitumor effects observed with ZD55-aPD-L1 scFv treatment. We show that the concomitant direct oncolysis by the recombinant OAd and localized autocrine/paracrine interception of PD-1:PD-L1 checkpoint interaction mediated by ZD55-aPD-L1 scFv-infected cells is exceedingly superior to co-administration of ZD55 and anti-PD-L1 antibody in the human TNBC mice model. CONCLUSIONS Our results provided evidence for the development of novel strategies, in this case an anti-PD-L1 scFv-armed OAd, to bolster immune responses to 'cold' tumors and to improve therapeutic responsiveness to ICIs.
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Affiliation(s)
- Shengsheng Mei
- Department of Biochemistry, Cancer Institute of the Second Affiliated Hospital (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), School of Medicine, Zhejiang University, Hangzhou, China
| | - Shanshan Peng
- Department of Biochemistry, Cancer Institute of the Second Affiliated Hospital (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), School of Medicine, Zhejiang University, Hangzhou, China
| | - Eu Gene Vong
- Department of Biochemistry, Cancer Institute of the Second Affiliated Hospital (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinbiao Zhan
- Department of Biochemistry, Cancer Institute of the Second Affiliated Hospital (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), School of Medicine, Zhejiang University, Hangzhou, China.
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Chen L, Zuo M, Zhou Q, Wang Y. Oncolytic virotherapy in cancer treatment: challenges and optimization prospects. Front Immunol 2023; 14:1308890. [PMID: 38169820 PMCID: PMC10758479 DOI: 10.3389/fimmu.2023.1308890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
Oncolytic viruses (OVs) are emerging cancer therapeutics that offer a multifaceted therapeutic platform for the benefits of replicating and lysing tumor cells, being engineered to express transgenes, modulating the tumor microenvironment (TME), and having a tolerable safety profile that does not overlap with other cancer therapeutics. The mechanism of OVs combined with other antitumor agents is based on immune-mediated attack resistance and might benefit patients who fail to achieve durable responses after immune checkpoint inhibitor (ICI) treatment. In this Review, we summarize data on the OV mechanism and limitations of monotherapy, which are currently in the process of combination partner development, especially with ICIs. We discuss some of the hurdles that have limited the preclinical and clinical development of OVs. We also describe the available data and provide guidance for optimizing OVs in clinical practice, as well as a summary of approved and promising novel OVs with clinical indications.
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Affiliation(s)
- Lingjuan Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, China
| | - Mengsi Zuo
- Department of Oncology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Qin Zhou
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), College of Bioengineering, Hubei University of Technology, Wuhan, China
| | - Yang Wang
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), College of Bioengineering, Hubei University of Technology, Wuhan, China
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Sugimura N, Kubota E, Mori Y, Aoyama M, Tanaka M, Shimura T, Tanida S, Johnston RN, Kataoka H. Reovirus combined with a STING agonist enhances anti-tumor immunity in a mouse model of colorectal cancer. Cancer Immunol Immunother 2023; 72:3593-3608. [PMID: 37526659 DOI: 10.1007/s00262-023-03509-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/24/2023] [Indexed: 08/02/2023]
Abstract
Reovirus, a naturally occurring oncolytic virus, initiates the lysis of tumor cells while simultaneously releasing tumor antigens or proapoptotic cytokines in the tumor microenvironment to augment anticancer immunity. However, reovirus has developed a strategy to evade antiviral immunity via its inhibitory effect on interferon production, which negatively affects the induction of antitumor immune responses. The mammalian adaptor protein Stimulator of Interferon Genes (STING) was identified as a key regulator that orchestrates immune responses by sensing cytosolic DNA derived from pathogens or tumors, resulting in the production of type I interferon. Recent studies reported the role of STING in innate immune responses to RNA viruses leading to the restriction of RNA virus replication. In the current study, we found that reovirus had a reciprocal reaction with a STING agonist regarding type I interferon responses in vitro; however, we found that the combination of reovirus and STING agonist enhanced anti-tumor immunity by enhancing cytotoxic T cell trafficking into tumors, leading to significant tumor regression and survival benefit in a syngeneic colorectal cancer model. Our data indicate the combination of reovirus and a STING agonist to enhance inflammation in the tumor microenvironment might be a strategy to improve oncolytic reovirus immunotherapy.
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Affiliation(s)
- Naomi Sugimura
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Eiji Kubota
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Mizuho-Ku, Nagoya, 467-8601, Japan.
| | - Yoshinori Mori
- Department of Gastroenterology, Nagoya City University West Medical Center, Kita-Ku, Nagoya, 462-8508, Japan
| | - Mineyoshi Aoyama
- Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, Mizuho-Ku, Nagoya, 467-8603, Japan
| | - Mamoru Tanaka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Takaya Shimura
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Mizuho-Ku, Nagoya, 467-8601, Japan
| | - Satoshi Tanida
- Department of Gastroenterology, Gamagori Municipal Hospital, Hirata-Cho, Gamagori, 443-8501, Japan
| | - Randal N Johnston
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Hiromi Kataoka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Mizuho-Ku, Nagoya, 467-8601, Japan
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Wan PKT, Fernandes RA, Seymour LW. Oncolytic viruses and antibodies: are they more successful when delivered separately or when engineered as a single agent? J Immunother Cancer 2023; 11:e006518. [PMID: 37541690 PMCID: PMC10407364 DOI: 10.1136/jitc-2022-006518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 08/06/2023] Open
Abstract
Oncolytic viruses (OVs) provide the promise of tumor-selective cytotoxicity coupled with amplification of the therapeutic agent (the virus) in situ within the tumor improving its therapeutic index. Despite this promise, however, single agent-treatments have not been as successful as combination therapies, particularly combining with checkpoint inhibitor antibodies. The antibodies may be delivered by two approaches, either encoded within the OV genome to restrict antibody production to sites of active virus infection or alternatively given alongside OVs as separate treatments. Both approaches have shown promising therapeutic outcomes, and this leads to an interesting question of whether one approach is potentially better than the other. In this review, we provide a brief summary of the combination OV-antibody therapies that target tumor cells, tumor microenvironment and immune cells to help define key parameters influencing which approach is superior, thereby improving insight into the rational design of OV treatment strategies.
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Dong H, Li M, Yang C, Wei W, He X, Cheng G, Wang S. Combination therapy with oncolytic viruses and immune checkpoint inhibitors in head and neck squamous cell carcinomas: an approach of complementary advantages. Cancer Cell Int 2023; 23:1. [PMID: 36604694 PMCID: PMC9814316 DOI: 10.1186/s12935-022-02846-x] [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: 10/11/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Squamous cell carcinomas are the most common head and neck malignancies. Significant progress has been made in standard therapeutic methods combining surgery, radiation, and chemotherapy. Nevertheless, the 5-year survival rate remains at 40-50%. Immune checkpoint inhibitors (ICIs) are a new strategy for treating head and neck squamous cell carcinomas (HNSCCs). Still, the overall response and effective rates are poor, as HNSCCs are 'cold' tumors with an immunosuppressive tumor microenvironment (TME), limiting ICI's beneficial effects. In this case, transforming the tumor suppression microenvironment before using ICIs could be helpful. Oncolytic viruses (OVs) can transform cold tumors into hot tumors, improving the situation. Talimogene laherparepvec (T-VEC), oncolytic immunotherapy authorized for advanced melanoma, also showed good safety and antitumor activity in treating head and neck cancer and pancreatic cancer. In combination with pembrolizumab, T-Vec may have more anticancer efficacy than either drug alone. Therefore, understanding the mechanisms underpinning OVs and their potential synergism with ICIs could benefit patients with HNSCC.
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Affiliation(s)
- Hui Dong
- grid.252957.e0000 0001 1484 5512Department of Stomatology, Bengbu Medical College, 2600 Donghai Avenue, Bengbu, 233030 China ,grid.417401.70000 0004 1798 6507Department of Stomatology, Center for Plastic and Reconstructive Surgery, Cancer Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang China
| | - Mengli Li
- grid.252957.e0000 0001 1484 5512Department of Stomatology, Bengbu Medical College, 2600 Donghai Avenue, Bengbu, 233030 China ,grid.417401.70000 0004 1798 6507Department of Stomatology, Center for Plastic and Reconstructive Surgery, Cancer Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang China
| | - Chen Yang
- grid.417401.70000 0004 1798 6507Department of Ultrasound Medicine, Cancer Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang China
| | - Wei Wei
- grid.506977.a0000 0004 1757 7957Postgraduate Training Base of Jinzhou Medical University (Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang People’s Republic of China
| | - Xianglei He
- grid.417401.70000 0004 1798 6507Department of Pathology, Cancer Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang China
| | - Gang Cheng
- grid.252957.e0000 0001 1484 5512Department of Stomatology, Bengbu Medical College, 2600 Donghai Avenue, Bengbu, 233030 China ,grid.417401.70000 0004 1798 6507Department of Stomatology, Center for Plastic and Reconstructive Surgery, Cancer Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang China
| | - Shibing Wang
- grid.417401.70000 0004 1798 6507Cancer Center, Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, 310014 Zhejiang China
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Ghorbankhani GA, Mohammadi A, Kazemipur N, Morovati S, Gharesi Fard B, Nazifi Habibabadi S, Hashempour Sadeghian M. Apoptotic activity of Newcastle disease virus in comparison with nisin A in MDA-MB-231 cell line. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2023; 14:29-37. [PMID: 36816859 PMCID: PMC9906615 DOI: 10.30466/vrf.2022.542258.3297] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/13/2022] [Indexed: 02/24/2023]
Abstract
Given the development of drug-resistant cancer cells, designing alternative approaches for cancer treatment seems essential. In this study, we evaluated the anti-tumor effects of nisin A and Newcastle disease virus (NDV) on triple-negative MDA-MB-231 cell line. The MDA-MB-231 cell line was separately and in combination subjected to the different concentrations of a Vero-adapted NDV (JF820294.1) and nisin A. The oncolytic effects of these treatments were analyzed by different cytotoxic and apoptosis techniques including trypan blue staining, MTT assay, acridine orange (EB/AO) staining, colony assay and flow cytometry over time. Nisin A at doses of more than 20.00 μg mL-1 could represent the anti-viral effects and interfere with the oncolytic activity of NDV. Moreover, the analyses indicated that the anti-proliferative and cytotoxic features of combination therapy were stronger than those of individual NDV groups. However, the most apoptotic effect was seen in NDV experimental groups. Taken together, the results from cytotoxicity tests, flow cytometry and colony assay showed that either of the oncolytic agents had significant effects at low concentrations 72 hr post-treatment. Thereby, they had the potential to be used as new approaches in cancer treatment.
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Affiliation(s)
| | - Ali Mohammadi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran; ,Correspondence Ali Mohammadi. DVM, PhD, Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran. E-mail:
| | - Nasrin Kazemipur
- Department of Basic Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran;
| | - Solmaz Morovati
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran;
| | - Behrouz Gharesi Fard
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Saeed Nazifi Habibabadi
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
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Optimal timing of PD-1 blockade in combination with oncolytic virus therapy. Semin Cancer Biol 2022; 86:971-980. [PMID: 34033895 DOI: 10.1016/j.semcancer.2021.05.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/13/2021] [Accepted: 05/18/2021] [Indexed: 01/27/2023]
Abstract
Anti-PD-1 and oncolytic viruses (OVs) have non-overlapping anti-tumor mechanisms, since each agent works at different steps of the cancer-immunity cycle. Evidence suggests that OVs improve therapeutic responses to anti-PD-1 therapy by reversing immunosuppressive factors, increasing the number and diversity of infiltrating lymphocytes, and promoting PD-L1 expression in both injected and non-injected tumors. Many studies in preclinical models suggest that the timing of anti-PD-1 administration influences the therapeutic success of the combination therapy (anti-PD-1 + OV). Therefore, determining the appropriate sequencing of agents is of critical importance to designing a rationale OV-based combinational clinical trial. Currently, the combination of anti-PD-1 and OVs are being delivered using various schedules, and we have classified the timing of administration of anti-PD-1 and OVs into five categories: (i) anti-PD-1 lead-in → OV; (ii) concurrent administration; (iii) OV lead-in → anti-PD-1; (iv) concurrent therapy lead-in → anti-PD-1; and (v) OV lead-in → concurrent therapy. Based on the reported preclinical and clinical literature, the most promising treatment strategy to date is hypothesized to be OV lead-in → concurrent therapy. In the OV lead-in → concurrent therapy approach, initial OV treatment results in T cell priming and infiltration into tumors and an immunologically hot tumor microenvironment (TME), which can be counterbalanced by engagement of PD-L1 to PD-1 receptor on immune cells, leading to T cell exhaustion. Therefore, after initial OV therapy, concurrent use of both OV and anti-PD-1 is critical through which OV maintains T cell priming and an immunologically hot TME, whereas PD-1 blockade helps to overcome PD-L1/PD-1-mediated T cell exhaustion. It is important to note that the hypothetical conclusion drawn in this review is based on thorough literature review on current understanding of OV + anti-PD-1 combination therapies and rhythm of treatment-induced cancer-immunity cycle. A variety of confounding factors such as tumor types, OV types, presence or absence of cytokine transgenes carried by an OV, timing of treatment initiation, varying dosages and treatment frequencies/duration of OV and anti-PD-1, etc. may affect the validity of our conclusion that will need to be further examined by future research (such as side-by-side comparative studies using all five treatment schedules in a given tumor model).
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Zhang H, Xie W, Zhang Y, Dong X, Liu C, Yi J, Zhang S, Wen C, Zheng L, Wang H. Oncolytic adenoviruses synergistically enhance anti-PD-L1 and anti-CTLA-4 immunotherapy by modulating the tumour microenvironment in a 4T1 orthotopic mouse model. Cancer Gene Ther 2022; 29:456-465. [PMID: 34561555 PMCID: PMC9113929 DOI: 10.1038/s41417-021-00389-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/25/2021] [Accepted: 09/09/2021] [Indexed: 02/02/2023]
Abstract
Effective therapeutic strategies for triple-negative breast cancer (TNBC) are still lacking. Clinical data suggest that a large number of TNBC patients cannot benefit from single immune checkpoint inhibitor (ICI) treatment due to the immunosuppressive tumour microenvironment (TME). Therefore, combination immunotherapy is an alternative approach to overcome this limitation. In this article, we combined two kinds of oncolytic adenoviruses with ICIs to treat TNBC in an orthotopic mouse model. Histopathological analysis and immunohistochemistry as well as multiplex immunofluorescence were used to analyse the TME. The immunophenotype of the peripheral blood and spleen was detected by using flow cytometry. Oncolytic adenovirus-mediated immune activity in a coculture system of lytic supernatant and splenocytes supported the study of the mechanism of combination therapy in vitro. Our results showed that the combination of oncolytic adenoviruses with anti-programmed cell death-ligand 1 (anti-PD-L1) and anti-cytotoxic T lymphocyte-associated antigen-4 (anti-CTLA-4) (aPC) can significantly inhibit tumour growth and prolong survival in a TNBC model. The combination therapy synergistically enhanced the antitumour effect by recruiting CD8+ T and T memory cells, reducing the number of regulatory T cells and tumour-associated macrophages, and promoting the polarization of macrophages from the M2 to the M1 phenotype to regulate the TME. The rAd.GM regimen performed better than the rAd.Null treatment. Furthermore, aPC efficiently blocked oncolytic virus-induced upregulation of PD-L1 and CTLA-4. These findings indicate that oncolytic adenoviruses can reprogramme the immunosuppressive TME, while ICIs can prevent immune escape after oncolytic virus therapy by reducing the expression of immune checkpoint molecules. Our results provide a mutually reinforcing strategy for clinical combination immunotherapy.
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Affiliation(s)
- Huan Zhang
- grid.256607.00000 0004 1798 2653Department of Breast, Bone and Soft Tissue Oncology, The Affiliated Tumour Hospital of Guangxi Medical University, Nanning, P.R. China
| | - Weimin Xie
- grid.256607.00000 0004 1798 2653Department of Breast, Bone and Soft Tissue Oncology, The Affiliated Tumour Hospital of Guangxi Medical University, Nanning, P.R. China
| | - Yuning Zhang
- Department of Experimental Haematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China
| | - Xiwen Dong
- Department of Experimental Haematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China
| | - Chao Liu
- Department of Experimental Haematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China
| | - Jing Yi
- Department of Experimental Haematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China
| | - Shun Zhang
- Department of Experimental Medical Science & Key Laboratory of Diagnosis and Treatment of Digestive System Tumours of Zhejiang Province, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang PR China
| | - Chunkai Wen
- grid.256607.00000 0004 1798 2653Department of Breast, Bone and Soft Tissue Oncology, The Affiliated Tumour Hospital of Guangxi Medical University, Nanning, P.R. China
| | - Li Zheng
- grid.419611.a0000 0004 0457 9072State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing, P.R. China
| | - Hua Wang
- Department of Experimental Haematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China
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Chen Y, Hu S, Shu Y, Qi Z, Zhang B, Kuang Y, Ma J, Cheng P. Antifibrotic Therapy Augments the Antitumor Effects of Vesicular Stomatitis Virus Via Reprogramming Tumor Microenvironment. Hum Gene Ther 2021; 33:237-249. [PMID: 34405694 DOI: 10.1089/hum.2021.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Solid tumors are characterized by abundant extracellular matrix originating from cancer-associated fibroblasts (CAFs). High collagen content can trigger the collapse of vascular system in the tumor and form physical barrier that eventually impedes the penetration of drug particles and cytotoxic immune cells. Moreover, CAFs is able to promote the enrichment of tumor-associated macrophages (TAMs) and differentiation of myeloid-derived suppressor cells (MDSCs) that work in concert to develop a highly immunosuppressive tumor microenvironment (TME). In this study, we investigated if halofuginone, an antifibrotic drug, can augment the therapeutic effects of oncolytic vesicular stomatitis virus (VSV). The results revealed that halofuginone significantly disrupts the collagen network in tumors and promotes the distribution of VSV and infiltration of CD8+ T cells (p < 0.0001). Combined treatment of VSV and halofuginone also modulates the immunosuppressive TME via deletion of TAM, MDSCs, and regulatory T cells (Tregs). Collectively, the combination therapy remarkably inhibits the tumor growth in multiple murine models and prolongs survival of mice. The results demonstrate the clinical potential of halofuginone in combination with oncolytic virus.
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Affiliation(s)
- Yanwei Chen
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Shichuan Hu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Yongheng Shu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Zhongbing Qi
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Bin Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Yueting Kuang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Jinhu Ma
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Ping Cheng
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
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Appleton E, Hassan J, Chan Wah Hak C, Sivamanoharan N, Wilkins A, Samson A, Ono M, Harrington KJ, Melcher A, Wennerberg E. Kickstarting Immunity in Cold Tumours: Localised Tumour Therapy Combinations With Immune Checkpoint Blockade. Front Immunol 2021; 12:754436. [PMID: 34733287 PMCID: PMC8558396 DOI: 10.3389/fimmu.2021.754436] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/29/2021] [Indexed: 12/28/2022] Open
Abstract
Cancer patients with low or absent pre-existing anti-tumour immunity ("cold" tumours) respond poorly to treatment with immune checkpoint inhibitors (ICPI). In order to render these patients susceptible to ICPI, initiation of de novo tumour-targeted immune responses is required. This involves triggering of inflammatory signalling, innate immune activation including recruitment and stimulation of dendritic cells (DCs), and ultimately priming of tumour-specific T cells. The ability of tumour localised therapies to trigger these pathways and act as in situ tumour vaccines is being increasingly explored, with the aspiration of developing combination strategies with ICPI that could generate long-lasting responses. In this effort, it is crucial to consider how therapy-induced changes in the tumour microenvironment (TME) act both as immune stimulants but also, in some cases, exacerbate immune resistance mechanisms. Increasingly refined immune monitoring in pre-clinical studies and analysis of on-treatment biopsies from clinical trials have provided insight into therapy-induced biomarkers of response, as well as actionable targets for optimal synergy between localised therapies and ICB. Here, we review studies on the immunomodulatory effects of novel and experimental localised therapies, as well as the re-evaluation of established therapies, such as radiotherapy, as immune adjuvants with a focus on ICPI combinations.
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Affiliation(s)
- Elizabeth Appleton
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Jehanne Hassan
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Charleen Chan Wah Hak
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
| | - Nanna Sivamanoharan
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
| | - Anna Wilkins
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
| | - Adel Samson
- Leeds Institute of Medical Research at St. James, University of Leeds, Leeds, United Kingdom
| | - Masahiro Ono
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Kevin J. Harrington
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
| | - Alan Melcher
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
| | - Erik Wennerberg
- Department of Radiotherapy and Imaging, Institute of Cancer Research (ICR), London, United Kingdom
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12
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Jung BK, Ko HY, Kang H, Hong J, Ahn HM, Na Y, Kim H, Kim JS, Yun CO. Relaxin-expressing oncolytic adenovirus induces remodeling of physical and immunological aspects of cold tumor to potentiate PD-1 blockade. J Immunother Cancer 2021; 8:jitc-2020-000763. [PMID: 32753544 PMCID: PMC7406118 DOI: 10.1136/jitc-2020-000763] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2020] [Indexed: 02/07/2023] Open
Abstract
Background Currently, several antibody (Ab)-based therapies have shown excellent therapeutic effects in the clinic. Nonetheless, Ab penetration into tumor tissues is limited due to abnormal vasculature, tumor interstitial pressure, and excessive extracellular matrix (ECM) accumulation, thus demanding novel strategies to overcome these barriers. Methods The intratumoral distribution of therapeutic Abs were detected by fluorescence microscopy or positron emission tomography in both human gastric xenograft and syngeneic pancreatic hamster tumor models. The antitumor efficacy by combination of oncolytic adenovirus (Ad), which coexpresses relaxin (RLX), interleukin (IL)-12, and granulocyte macrophage colony-stimulating factor (GM-CSF) (oAd/IL12/GM-RLX) and antibody against the programmed cell death protein 1 (αPD-1) was examined in hamster subcutaneous and orthotopic pancreatic tumor models. The immunological aspects of these combination therapy regimen were assessed by flow cytometry or immunohistochemistry in subcutaneous hamster tumor models. Results Relaxin-expressing oncolytic Ad effectively degraded tumor ECM and enhanced the tumor penetration of trastuzumab in comparison with trastuzumab monotherapy. Based on these results, an oAd/IL12/GM-RLX was used to enhance the potency of immune checkpoint blockade. The combination of the oAd/IL12/GM-RLX and αPD-1 promoted a concomitant degradation of the tumor ECM and amelioration of the immunosuppressive tumor niches, ultimately enhanced intratumoral infiltration of both αPD-1 and activated T cells. Of note, the combination therapy was able to elicit a potent and durable antitumor immune response against cold tumors that were refractory to immune checkpoint inhibitor monotherapy. Conclusions Our findings are the first to demonstrate that expression of four genes (IL-12p35, IL-12p40, GM-CSF, and RLX) mediated by a single oncolytic Ad vector can promote remodeling of both physical and immunological aspects of the tumor niches to overcome the major limitations of Ab-based therapies that have emerged in recent clinical trials.
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Affiliation(s)
- Bo-Kyeong Jung
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea (the Republic of)
| | - Hae Young Ko
- Division of RI Application, Korea Institute of Radiological and Medical Sciences, Seoul, Korea (the Republic of)
| | - Hyunji Kang
- Division of RI Application, Korea Institute of Radiological and Medical Sciences, Seoul, Korea (the Republic of)
| | - JinWoo Hong
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea (the Republic of).,Department of Research and Development, GeneMedicine Co., Ltd, Seoul, Korea (the Republic of)
| | - Hyo Min Ahn
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea (the Republic of).,Department of Research and Development, GeneMedicine Co., Ltd, Seoul, Korea (the Republic of)
| | - Youjin Na
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea (the Republic of)
| | - Hyeongi Kim
- Division of RI Application, Korea Institute of Radiological and Medical Sciences, Seoul, Korea (the Republic of)
| | - Jin Su Kim
- Division of RI Application, Korea Institute of Radiological and Medical Sciences, Seoul, Korea (the Republic of) .,Radiological and Medico-Oncological Sciences, University of science and technology (UST), Seoul, Korea (the Republic of)
| | - Chae-Ok Yun
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea (the Republic of) .,Department of Research and Development, GeneMedicine Co., Ltd, Seoul, Korea (the Republic of).,Institute of Nano Science and Technology (INST), Hanyang University, Seoul, Korea (the Republic of)
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13
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Hu HJ, Liang X, Li HL, Wang HY, Gu JF, Sun LY, Xiao J, Hu JQ, Ni AM, Liu XY. Enhanced anti-melanoma efficacy through a combination of the armed oncolytic adenovirus ZD55-IL-24 and immune checkpoint blockade in B16-bearing immunocompetent mouse model. Cancer Immunol Immunother 2021; 70:3541-3555. [PMID: 33903973 PMCID: PMC8571158 DOI: 10.1007/s00262-021-02946-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 04/14/2021] [Indexed: 12/22/2022]
Abstract
Although the recent treatment in melanoma through the use of anti-PD-1 immunotherapy is successful, the efficacy of this approach remains to be improved. Here, we explore the feasibility of combination strategy with the armed oncolytic adenovirus ZD55-IL-24 and PD-1 blockade. We find that combination therapy with localized ZD55-IL-24 and systemic PD-1 blockade leads to synergistic inhibition of both local and distant established tumors in B16-bearing immunocompetent mouse model. Our further mechanism investigation reveals that synergistic therapeutic effect is associated with marked promotion of tumor immune infiltration and recognition in both local and distant tumors as well as spleens. PD-1 blockade has no obvious effect on promotion of tumor immune infiltration and recognition. Localized therapy with ZD55-IL-24, however, can help PD-1 blockade to overcome the limitation of relatively low tumor immune infiltration and recognition. This study provides a rationale for investigation of such combination therapy in the clinic.
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Affiliation(s)
- Hai-Jun Hu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xiu Liang
- School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Hai-Lang Li
- Department of Pharmacy, Xiamen Medical College, Xiamen, 361023, China
| | - Huai-Yuan Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin-Fa Gu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Lan-Ying Sun
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jing Xiao
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin-Qing Hu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ai-Min Ni
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Xin-Yuan Liu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.
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14
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Kottke T, Tonne J, Evgin L, Driscoll CB, van Vloten J, Jennings VA, Huff AL, Zell B, Thompson JM, Wongthida P, Pulido J, Schuelke MR, Samson A, Selby P, Ilett E, McNiven M, Roberts LR, Borad MJ, Pandha H, Harrington K, Melcher A, Vile RG. Oncolytic virotherapy induced CSDE1 neo-antigenesis restricts VSV replication but can be targeted by immunotherapy. Nat Commun 2021; 12:1930. [PMID: 33772027 PMCID: PMC7997928 DOI: 10.1038/s41467-021-22115-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 02/25/2021] [Indexed: 01/06/2023] Open
Abstract
In our clinical trials of oncolytic vesicular stomatitis virus expressing interferon beta (VSV-IFNβ), several patients achieved initial responses followed by aggressive relapse. We show here that VSV-IFNβ-escape tumors predictably express a point-mutated CSDE1P5S form of the RNA-binding Cold Shock Domain-containing E1 protein, which promotes escape as an inhibitor of VSV replication by disrupting viral transcription. Given time, VSV-IFNβ evolves a compensatory mutation in the P/M Inter-Genic Region which rescues replication in CSDE1P5S cells. These data show that CSDE1 is a major cellular co-factor for VSV replication. However, CSDE1P5S also generates a neo-epitope recognized by non-tolerized T cells. We exploit this predictable neo-antigenesis to drive, and trap, tumors into an escape phenotype, which can be ambushed by vaccination against CSDE1P5S, preventing tumor escape. Combining frontline therapy with escape-targeting immunotherapy will be applicable across multiple therapies which drive tumor mutation/evolution and simultaneously generate novel, targetable immunopeptidomes associated with acquired treatment resistance.
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Affiliation(s)
- Timothy Kottke
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Jason Tonne
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Laura Evgin
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Jacob van Vloten
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Victoria A Jennings
- Chester Beatty Laboratories, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK
| | - Amanda L Huff
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Brady Zell
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Jill M Thompson
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Jose Pulido
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Adel Samson
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK
| | - Peter Selby
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK
| | - Elizabeth Ilett
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK
| | - Mark McNiven
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Lewis R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Mitesh J Borad
- Division of Hematology/Oncology, Mayo Clinic, Scottsdale, AZ, USA
| | - Hardev Pandha
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Kevin Harrington
- Chester Beatty Laboratories, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Alan Melcher
- Chester Beatty Laboratories, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Richard G Vile
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.
- Leeds Institute of Medical Research, University of Leeds, Leeds, UK.
- Department of Immunology, Mayo Clinic, Rochester, MN, USA.
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15
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Briolay T, Petithomme T, Fouet M, Nguyen-Pham N, Blanquart C, Boisgerault N. Delivery of cancer therapies by synthetic and bio-inspired nanovectors. Mol Cancer 2021; 20:55. [PMID: 33761944 PMCID: PMC7987750 DOI: 10.1186/s12943-021-01346-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/05/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND As a complement to the clinical development of new anticancer molecules, innovations in therapeutic vectorization aim at solving issues related to tumor specificity and associated toxicities. Nanomedicine is a rapidly evolving field that offers various solutions to increase clinical efficacy and safety. MAIN: Here are presented the recent advances for different types of nanovectors of chemical and biological nature, to identify the best suited for translational research projects. These nanovectors include different types of chemically engineered nanoparticles that now come in many different flavors of 'smart' drug delivery systems. Alternatives with enhanced biocompatibility and a better adaptability to new types of therapeutic molecules are the cell-derived extracellular vesicles and micro-organism-derived oncolytic viruses, virus-like particles and bacterial minicells. In the first part of the review, we describe their main physical, chemical and biological properties and their potential for personalized modifications. The second part focuses on presenting the recent literature on the use of the different families of nanovectors to deliver anticancer molecules for chemotherapy, radiotherapy, nucleic acid-based therapy, modulation of the tumor microenvironment and immunotherapy. CONCLUSION This review will help the readers to better appreciate the complexity of available nanovectors and to identify the most fitting "type" for efficient and specific delivery of diverse anticancer therapies.
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Affiliation(s)
- Tina Briolay
- Université de Nantes, Inserm, CRCINA, F-44000, Nantes, France
| | | | - Morgane Fouet
- Université de Nantes, Inserm, CRCINA, F-44000, Nantes, France
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16
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Moaven O, W Mangieri C, A Stauffer J, Anastasiadis PZ, Borad MJ. Evolving Role of Oncolytic Virotherapy: Challenges and Prospects in Clinical Practice. JCO Precis Oncol 2021; 5:PO.20.00395. [PMID: 34250386 DOI: 10.1200/po.20.00395] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/04/2021] [Accepted: 01/27/2021] [Indexed: 12/23/2022] Open
Abstract
Selective oncotropism and cytolytic activity against tumors have made certain viruses subject to investigation as novel treatment modalities. However, monotherapy with oncolytic viruses (OVs) has shown limited success and modest clinical benefit. The capacity to genetically engineer OVs makes them a desirable platform to design complementary treatment modalities to overcome the existing treatment options' shortcomings. In recent years, our knowledge of interactions of the tumors with the immune system has expanded profoundly. There is a growing body of literature supporting immunomodulatory roles for OVs. The concept of bioengineering these platforms to induce the desired immune response and complement the current immunotherapeutic modalities to make immune-resistant tumors responsive to immunotherapy is under investigation in preclinical and early clinical trials. This review provides an overview of attempts to optimize oncolytic virotherapy as essential components of the multimodality anticancer therapeutic approach and discusses the challenges in translation to clinical practice.
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Affiliation(s)
- Omeed Moaven
- Section of Surgical Oncology, Department of Surgery, Mayo Clinic Florida, Jacksonville, FL
| | - Christopher W Mangieri
- Section of Surgical Oncology, Department of Surgery, Wake Forest University, Winston-Salem, NC
| | - John A Stauffer
- Section of Surgical Oncology, Department of Surgery, Mayo Clinic Florida, Jacksonville, FL
| | | | - Mitesh J Borad
- Division of Medical Oncology, Department of Medicine, Mayo Clinic Arizona, Scottsdale, AZ
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17
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Jenner AL, Cassidy T, Belaid K, Bourgeois-Daigneault MC, Craig M. In silico trials predict that combination strategies for enhancing vesicular stomatitis oncolytic virus are determined by tumor aggressivity. J Immunother Cancer 2021; 9:jitc-2020-001387. [PMID: 33608375 PMCID: PMC7898884 DOI: 10.1136/jitc-2020-001387] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2020] [Indexed: 12/19/2022] Open
Abstract
Background Immunotherapies, driven by immune-mediated antitumorigenicity, offer the potential for significant improvements to the treatment of multiple cancer types. Identifying therapeutic strategies that bolster antitumor immunity while limiting immune suppression is critical to selecting treatment combinations and schedules that offer durable therapeutic benefits. Combination oncolytic virus (OV) therapy, wherein complementary OVs are administered in succession, offer such promise, yet their translation from preclinical studies to clinical implementation is a major challenge. Overcoming this obstacle requires answering fundamental questions about how to effectively design and tailor schedules to provide the most benefit to patients. Methods We developed a computational biology model of combined oncolytic vaccinia (an enhancer virus) and vesicular stomatitis virus (VSV) calibrated to and validated against multiple data sources. We then optimized protocols in a cohort of heterogeneous virtual individuals by leveraging this model and our previously established in silico clinical trial platform. Results Enhancer multiplicity was shown to have little to no impact on the average response to therapy. However, the duration of the VSV injection lag was found to be determinant for survival outcomes. Importantly, through treatment individualization, we found that optimal combination schedules are closely linked to tumor aggressivity. We predicted that patients with aggressively growing tumors required a single enhancer followed by a VSV injection 1 day later, whereas a small subset of patients with the slowest growing tumors needed multiple enhancers followed by a longer VSV delay of 15 days, suggesting that intrinsic tumor growth rates could inform the segregation of patients into clinical trials and ultimately determine patient survival. These results were validated in entirely new cohorts of virtual individuals with aggressive or non-aggressive subtypes. Conclusions Based on our results, improved therapeutic schedules for combinations with enhancer OVs can be studied and implemented. Our results further underline the impact of interdisciplinary approaches to preclinical planning and the importance of computational approaches to drug discovery and development.
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Affiliation(s)
- Adrianne L Jenner
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, Canada.,Department of Mathematics and Statistics, Université de Montréal, Montreal, Quebec, Canada
| | - Tyler Cassidy
- Department of Mathematics and Statistics, McGill University, Montreal, Quebec, Canada.,Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Katia Belaid
- Department of Mathematics and Statistics, Université de Montréal, Montreal, Quebec, Canada.,Statistique et Informatique Décisionnelle, Université Toulouse III Paul Sabatier, Toulouse, Occitanie, France
| | - Marie-Claude Bourgeois-Daigneault
- Institut du Cancer de Montréal, CHUM, Montreal, Quebec, Canada.,Department of Microbiology, Infectious diseases and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Morgan Craig
- Sainte-Justine University Hospital Research Centre, Montreal, Quebec, Canada .,Department of Mathematics and Statistics, Université de Montréal, Montreal, Quebec, Canada
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18
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Burman B, Pesci G, Zamarin D. Newcastle Disease Virus at the Forefront of Cancer Immunotherapy. Cancers (Basel) 2020; 12:cancers12123552. [PMID: 33260685 PMCID: PMC7761210 DOI: 10.3390/cancers12123552] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/23/2022] Open
Abstract
Preclinical and clinical studies dating back to the 1950s have demonstrated that Newcastle disease virus (NDV) has oncolytic properties and can potently stimulate antitumor immune responses. NDV selectively infects, replicates within, and lyses cancer cells by exploiting defective antiviral defenses in cancer cells. Inflammation within the tumor microenvironment in response to NDV leads to the recruitment of innate and adaptive immune effector cells, presentation of tumor antigens, and induction of immune checkpoints. In animal models, intratumoral injection of NDV results in T cell infiltration of both local and distant non-injected tumors, demonstrating the potential of NDV to activate systemic adaptive antitumor immunity. The combination of intratumoral NDV with systemic immune checkpoint blockade leads to regression of both injected and distant tumors, an effect further potentiated by introduction of immunomodulatory transgenes into the viral genome. Clinical trials with naturally occurring NDV administered intravenously demonstrated durable responses across numerous cancer types. Based on these studies, further exploration of NDV is warranted, and clinical studies using recombinant NDV in combination with immune checkpoint blockade have been initiated.
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Affiliation(s)
- Bharat Burman
- Department of Medicine, Gynecologic Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (B.B.); (G.P.)
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Giulio Pesci
- Department of Medicine, Gynecologic Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (B.B.); (G.P.)
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Dmitriy Zamarin
- Department of Medicine, Gynecologic Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (B.B.); (G.P.)
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Department of Medicine, Weill-Cornell Medical College, New York, NY 10065, USA
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Correspondence:
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19
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Oncolytic Adenovirus in Cancer Immunotherapy. Cancers (Basel) 2020; 12:cancers12113354. [PMID: 33202717 PMCID: PMC7697649 DOI: 10.3390/cancers12113354] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023] Open
Abstract
Tumor-selective replicating "oncolytic" viruses are novel and promising tools for immunotherapy of cancer. However, despite their first success in clinical trials, previous experience suggests that currently used oncolytic virus monotherapies will not be effective enough to achieve complete tumor responses and long-term cure in a broad spectrum of cancers. Nevertheless, there are reasonable arguments that suggest advanced oncolytic viruses will play an essential role as enablers of multi-stage immunotherapies including established systemic immunotherapies. Oncolytic adenoviruses (oAds) display several features to meet this therapeutic need. oAds potently lyse infected tumor cells and induce a strong immunogenic cell death associated with tumor inflammation and induction of antitumor immune responses. Furthermore, established and versatile platforms of oAds exist, which are well suited for the incorporation of heterologous genes to optimally exploit and amplify the immunostimulatory effect of viral oncolysis. A considerable spectrum of functional genes has already been integrated in oAds to optimize particular aspects of immune stimulation including antigen presentation, T cell priming, engagement of additional effector functions, and interference with immunosuppression. These advanced concepts have the potential to play a promising future role as enablers of multi-stage immunotherapies involving adoptive cell transfer and systemic immunotherapies.
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20
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Zhang B, Cheng P. Improving antitumor efficacy via combinatorial regimens of oncolytic virotherapy. Mol Cancer 2020; 19:158. [PMID: 33172438 PMCID: PMC7656670 DOI: 10.1186/s12943-020-01275-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023] Open
Abstract
As a promising therapeutic strategy, oncolytic virotherapy has shown potent anticancer efficacy in numerous pre-clinical and clinical trials. Oncolytic viruses have the capacity for conditional-replication within carcinoma cells leading to cell death via multiple mechanisms, including direct lysis of neoplasms, induction of immunogenic cell death, and elicitation of innate and adaptive immunity. In addition, these viruses can be engineered to express cytokines or chemokines to alter tumor microenvironments. Combination of oncolytic virotherapy with other antitumor therapeutic modalities, such as chemotherapy and radiation therapy as well as cancer immunotherapy can be used to target a wider range of tumors and promote therapeutic efficacy. In this review, we outline the basic biological characteristics of oncolytic viruses and the underlying mechanisms that support their use as promising antitumor drugs. We also describe the enhanced efficacy attributed to virotherapy combined with other drugs for the treatment of cancer.
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Affiliation(s)
- Bin Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17 People's South Road, Chengdu, 610041, PR China
| | - Ping Cheng
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17 People's South Road, Chengdu, 610041, PR China.
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21
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Mochizuki Y, Tazawa H, Demiya K, Kure M, Kondo H, Komatsubara T, Sugiu K, Hasei J, Yoshida A, Kunisada T, Urata Y, Kagawa S, Ozaki T, Fujiwara T. Telomerase-specific oncolytic immunotherapy for promoting efficacy of PD-1 blockade in osteosarcoma. Cancer Immunol Immunother 2020; 70:1405-1417. [PMID: 33151368 DOI: 10.1007/s00262-020-02774-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 10/19/2020] [Indexed: 12/20/2022]
Abstract
Immune checkpoint inhibitors including anti-programmed cell death 1 (PD-1) antibody have recently improved clinical outcome in certain cancer patients; however, osteosarcoma (OS) patients are refractory to PD-1 blockade. Oncolytic virotherapy has emerged as novel immunogenic therapy to augment antitumor immune response. We developed a telomerase-specific replication-competent oncolytic adenovirus OBP-502 that induces lytic cell death via binding to integrins. In this study, we assessed the combined effect of PD-1 blockade and OBP-502 in OS cells. The expression of coxsackie and adenovirus receptor (CAR), integrins αvβ3 and αvβ5, and programmed cell death ligand 1 (PD-L1) was analyzed in two murine OS cells (K7M2, NHOS). The cytopathic activity of OBP-502 in both cells was analyzed using the XTT assay. OBP-502-induced immunogenic cell death was assessed by analyzing the level of extracellular ATP and high-mobility group box protein B1 (HMGB1). Subcutaneous tumor models for K7M2 and NHOS cells were used to evaluate the antitumor effect and number of tumor-infiltrating CD8+ cells in combination therapy. K7M2 and NHOS cells showed high expression of integrins αvβ3 and αvβ5, but not CAR. OBP-502 significantly suppressed the viability of both cells, in which PD-L1 expression and the release of ATP and HMGB1 were significantly increased. Intratumoral injection of OBP-502 significantly augmented the efficacy of PD-1 blockade on subcutaneous K2M2 and NHOS tumor models via enhancement of tumor-infiltrating CD8+ T cells. Our results suggest that telomerase-specific oncolytic virotherapy is a promising antitumor strategy to promote the efficacy of PD-1 blockade in OS.
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Affiliation(s)
- Yusuke Mochizuki
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Hiroshi Tazawa
- Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan. .,Center for Innovative Clinical Medicine, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Koji Demiya
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Miho Kure
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Hiroya Kondo
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Tadashi Komatsubara
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Kazuhisa Sugiu
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Joe Hasei
- Sports Medicine, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-8558, Japan
| | - Aki Yoshida
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Toshiyuki Kunisada
- Medical Materials for Musculoskeletal Reconstruction, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Yasuo Urata
- Oncolys BioPharma, Inc, Tokyo, 105-0001, Japan
| | - Shunsuke Kagawa
- Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan.,Minimally Invasive Therapy Center, Okayama University Hospital, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Departments of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Toshiyoshi Fujiwara
- Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
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22
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Abstract
Tumors represent a hostile environment for the effector cells of cancer immunosurveillance. Immunosuppressive receptors and soluble or membrane-bound ligands are abundantly exposed and released by malignant entities and their stromal accomplices. As a consequence, executioners of antitumor immunity inefficiently navigate across cancer tissues and fail to eliminate malignant targets. By inducing immunogenic cancer cell death, oncolytic viruses profoundly reshape the tumor microenvironment. They trigger the local spread of danger signals and tumor-associated (as well as viral) antigens, thus attracting antigen-presenting cells, promoting the activation and expansion of lymphocytic populations, facilitating their infiltration in the tumor bed, and reinvigorating cytotoxic immune activity. The present review recapitulates key chemokines, growth factors and other cytokines that orchestrate this ballet of antitumoral leukocytes upon oncolytic virotherapy.
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Affiliation(s)
- Jonathan G Pol
- Centre de Recherche des Cordeliers, Equipe 11 labellisée par la Ligue Nationale contre le Cancer, INSERM, Sorbonne Université, Université de Paris, Paris, France; Gustave Roussy Cancer Campus, Metabolomics and Cell Biology Platforms, Villejuif, France.
| | - Samuel T Workenhe
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Prathyusha Konda
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
| | - Shashi Gujar
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada; Department of Pathology, Dalhousie University, Halifax, NS, Canada; Department of Biology, Dalhousie University, Halifax, NS, Canada; Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe 11 labellisée par la Ligue Nationale contre le Cancer, INSERM, Sorbonne Université, Université de Paris, Paris, France; Gustave Roussy Cancer Campus, Metabolomics and Cell Biology Platforms, Villejuif, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China; Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden.
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23
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Müller L, Berkeley R, Barr T, Ilett E, Errington-Mais F. Past, Present and Future of Oncolytic Reovirus. Cancers (Basel) 2020; 12:E3219. [PMID: 33142841 PMCID: PMC7693452 DOI: 10.3390/cancers12113219] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022] Open
Abstract
Oncolytic virotherapy (OVT) has received significant attention in recent years, especially since the approval of talimogene Laherparepvec (T-VEC) in 2015 by the Food and Drug administration (FDA). Mechanistic studies of oncolytic viruses (OVs) have revealed that most, if not all, OVs induce direct oncolysis and stimulate innate and adaptive anti-tumour immunity. With the advancement of tumour modelling, allowing characterisation of the effects of tumour microenvironment (TME) components and identification of the cellular mechanisms required for cell death (both direct oncolysis and anti-tumour immune responses), it is clear that a "one size fits all" approach is not applicable to all OVs, or indeed the same OV across different tumour types and disease locations. This article will provide an unbiased review of oncolytic reovirus (clinically formulated as pelareorep), including the molecular and cellular requirements for reovirus oncolysis and anti-tumour immunity, reports of pre-clinical efficacy and its overall clinical trajectory. Moreover, as it is now abundantly clear that the true potential of all OVs, including reovirus, will only be reached upon the development of synergistic combination strategies, reovirus combination therapeutics will be discussed, including the limitations and challenges that remain to harness the full potential of this promising therapeutic agent.
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24
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Cook M, Chauhan A. Clinical Application of Oncolytic Viruses: A Systematic Review. Int J Mol Sci 2020; 21:ijms21207505. [PMID: 33053757 PMCID: PMC7589713 DOI: 10.3390/ijms21207505] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 02/07/2023] Open
Abstract
Leveraging the immune system to thwart cancer is not a novel strategy and has been explored via cancer vaccines and use of immunomodulators like interferons. However, it was not until the introduction of immune checkpoint inhibitors that we realized the true potential of immunotherapy in combating cancer. Oncolytic viruses are one such immunotherapeutic tool that is currently being explored in cancer therapeutics. We present the most comprehensive systematic review of all oncolytic viruses in Phase 1, 2, and 3 clinical trials published to date. We performed a systematic review of all published clinical trials indexed in PubMed that utilized oncolytic viruses. Trials were reviewed for type of oncolytic virus used, method of administration, study design, disease type, primary outcome, and relevant adverse effects. A total of 120 trials were found; 86 trials were available for our review. Included were 60 phase I trials, five phase I/II combination trials, 19 phase II trials, and two phase III clinical trials. Oncolytic viruses are feverously being evaluated in oncology with over 30 different types of oncolytic viruses being explored either as a single agent or in combination with other antitumor agents. To date, only one oncolytic virus therapy has received an FDA approval but advances in bioengineering techniques and our understanding of immunomodulation to heighten oncolytic virus replication and improve tumor kill raises optimism for its future drug development.
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Affiliation(s)
- Mary Cook
- Department of Internal Medicine, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland Medical Center, 22 S. Greene Street, Baltimore, MD 21201, USA;
| | - Aman Chauhan
- Department of Internal Medicine-Medical Oncology, University of Kentucky, Lexington, KY 40536, USA
- Markey Cancer Center, University of Kentucky, 800 Rose Street, Lexington, KY 40536, USA
- Correspondence: ; Tel.: +504-278-0134
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25
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Lundstrom K. Self-Amplifying RNA Viruses as RNA Vaccines. Int J Mol Sci 2020; 21:ijms21145130. [PMID: 32698494 PMCID: PMC7404065 DOI: 10.3390/ijms21145130] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 01/04/2023] Open
Abstract
Single-stranded RNA viruses such as alphaviruses, flaviviruses, measles viruses and rhabdoviruses are characterized by their capacity of highly efficient self-amplification of RNA in host cells, which make them attractive vehicles for vaccine development. Particularly, alphaviruses and flaviviruses can be administered as recombinant particles, layered DNA/RNA plasmid vectors carrying the RNA replicon and even RNA replicon molecules. Self-amplifying RNA viral vectors have been used for high level expression of viral and tumor antigens, which in immunization studies have elicited strong cellular and humoral immune responses in animal models. Vaccination has provided protection against challenges with lethal doses of viral pathogens and tumor cells. Moreover, clinical trials have demonstrated safe application of RNA viral vectors and even promising results in rhabdovirus-based phase III trials on an Ebola virus vaccine. Preclinical and clinical applications of self-amplifying RNA viral vectors have proven efficient for vaccine development and due to the presence of RNA replicons, amplification of RNA in host cells will generate superior immune responses with significantly reduced amounts of RNA delivered. The need for novel and efficient vaccines has become even more evident due to the global COVID-19 pandemic, which has further highlighted the urgency in challenging emerging diseases.
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26
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Chiu M, Armstrong EJL, Jennings V, Foo S, Crespo-Rodriguez E, Bozhanova G, Patin EC, McLaughlin M, Mansfield D, Baker G, Grove L, Pedersen M, Kyula J, Roulstone V, Wilkins A, McDonald F, Harrington K, Melcher A. Combination therapy with oncolytic viruses and immune checkpoint inhibitors. Expert Opin Biol Ther 2020; 20:635-652. [PMID: 32067509 DOI: 10.1080/14712598.2020.1729351] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 02/10/2020] [Indexed: 12/21/2022]
Abstract
Introduction: Immune checkpoint inhibitors (ICI) have dramatically improved the outcome for cancer patients across multiple tumor types. However the response rates to ICI monotherapy remain relatively low, in part due to some tumors cultivating an inherently 'cold' immune microenvironment. Oncolytic viruses (OV) have the capability to promote a 'hotter' immune microenvironment which can improve the efficacy of ICI.Areas covered: In this article we conducted a literature search through Pubmed/Medline to identify relevant articles in both the pre-clinical and clinical settings for combining OVs with ICIs and discuss the impact of this approach on treatment as well as changes within the tumor microenvironment. We also explore the future directions of this novel combination strategy.Expert opinion: The imminent results of the Phase 3 study combining pembrolizumab with or without T-Vec injection are eagerly awaited. OV/ICI combinations remain one of the most promising avenues to explore in the success of cancer immunotherapy.
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Affiliation(s)
- Matthew Chiu
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - Edward John Lloyd Armstrong
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - Vicki Jennings
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Shane Foo
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Eva Crespo-Rodriguez
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Galabina Bozhanova
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | | | - Martin McLaughlin
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - David Mansfield
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Gabriella Baker
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Lorna Grove
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Malin Pedersen
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Joan Kyula
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Victoria Roulstone
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | - Anna Wilkins
- Tumour Cell Biology Laboratory, The Francis Crick Institute, London, UK
| | | | - Kevin Harrington
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - Alan Melcher
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
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27
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Shi T, Song X, Wang Y, Liu F, Wei J. Combining Oncolytic Viruses With Cancer Immunotherapy: Establishing a New Generation of Cancer Treatment. Front Immunol 2020; 11:683. [PMID: 32411132 PMCID: PMC7198760 DOI: 10.3389/fimmu.2020.00683] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/26/2020] [Indexed: 12/12/2022] Open
Abstract
The recent successes of tumor immunotherapy approaches, such as immune checkpoint blockade (ICB) and chimeric antigen receptor T cell (CAR-T) therapy, have revolutionized cancer treatment, improving efficacy and extending treatment to a larger proportion of cancer patients. However, due to high heterogeneity of cancer, poor tumor cell targeting, and the immunosuppressive status of the tumor microenvironment (TME), combinatorial agents are required to obtain more effective and consistent therapeutic responses in a wide range of cancers. Oncolytic viruses (OVs) are able to selectively replicate in and destroy tumor cells and subsequently induce systematic anti-tumor immune responses. Thus, they are ideal for combining with cancer immunotherapy. In this review, we discuss the current understanding of OVs, as well as the latest preclinical and clinical progress of combining OVs with cancer immunotherapies, including ICB, CAR-T therapy, bispecific T cell engagers (BiTEs), and cancer vaccines. Moreover, we consider future directions for applying OVs to personalized cancer immunotherapies, which could potentially launch a new generation of cancer treatments.
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Affiliation(s)
- Tao Shi
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, China
| | - Xueru Song
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, China
| | - Yue Wang
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, China
| | - Fangcen Liu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, China
| | - Jia Wei
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, China
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28
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Oncolytic immunotherapy and bortezomib synergy improves survival of refractory multiple myeloma in a preclinical model. Blood Adv 2020; 3:797-812. [PMID: 30850386 DOI: 10.1182/bloodadvances.2018025593] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 01/14/2019] [Indexed: 02/06/2023] Open
Abstract
The oncolytic reovirus (RV) has demonstrated clinical efficacy and minimal toxicity in a variety of cancers, including multiple myeloma (MM). MM is a malignancy of plasma cells that is considered treatable but incurable because of the 90% relapse rate that is primarily from drug resistance. The systemic nature of MM and the antitumor immunosuppression by its tumor microenvironment presents an ongoing therapeutic challenge. In the present study, we demonstrate that RV synergizes with the standard-of-care MM drug bortezomib (BTZ) and, importantly, enhances its therapeutic potential in therapy-resistant human MM cell lines in vitro. Using the syngeneic Vk*MYC BTZ-resistant immunocompetent transplantable MM murine model, we also demonstrate that mice harboring BTZ-insensitive MM tumors respond to the RV/BTZ combination treatment in terms of decreased tumor burden and improved overall survival (P < .00001). We demonstrate that BTZ augments RV replication in tumor-associated endothelial cells and myeloma cells, leading to enhanced viral delivery and thereby stimulating cytokine release, immune activity, apoptosis, and reduction of the MM-associated immune suppression. We conclude that combined RV/BTZ is an attractive therapeutic strategy with no safety signals for the treatment of MM.
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29
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Taefehshokr N, Baradaran B, Baghbanzadeh A, Taefehshokr S. Promising approaches in cancer immunotherapy. Immunobiology 2020; 225:151875. [DOI: 10.1016/j.imbio.2019.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/03/2019] [Accepted: 11/25/2019] [Indexed: 02/06/2023]
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30
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Lemos de Matos A, Franco LS, McFadden G. Oncolytic Viruses and the Immune System: The Dynamic Duo. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 17:349-358. [PMID: 32071927 PMCID: PMC7015832 DOI: 10.1016/j.omtm.2020.01.001] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oncolytic viruses (OVs) constitute a new and promising immunotherapeutic approach toward cancer treatment. This therapy takes advantage of the natural propensity of most tumor cells to be infected by specific OVs. Besides the direct killing potential (oncolysis), what makes OV administration attractive for the present cancer immunotherapeutic scenario is the capacity to induce two new overlapping, but distinct, immunities: anti-tumoral and anti-viral. OV infection and oncolysis naturally elicit both innate and adaptive immune responses (required for long-term anti-tumoral immunity); at the same time, the viral infection prompts an anti-viral response. In this review, we discuss the dynamic interaction between OVs and the triggered responses of the immune system. The anti-OV immunological events that lead to viral clearance and the strategies to deal with such potential loss of the therapeutic virus are discussed. Additionally, we review the immune stimulatory actions induced by OVs through different inherent strategies, such as modulation of the tumor microenvironment, the role of immunogenic cell death, and the consequences of genetically modifying OVs by arming them with therapeutic transgenes. An understanding of the balance between the OV-induced anti-tumoral versus anti-viral immunities will provide insight when choosing the appropriate virotherapy for any specific cancer.
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Affiliation(s)
- Ana Lemos de Matos
- Biodesign Center for Immunotherapy, Vaccines, and Virotherapy (B-CIVV), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Lina S Franco
- Biodesign Center for Immunotherapy, Vaccines, and Virotherapy (B-CIVV), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Grant McFadden
- Biodesign Center for Immunotherapy, Vaccines, and Virotherapy (B-CIVV), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
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31
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Mahalingam D, Wilkinson GA, Eng KH, Fields P, Raber P, Moseley JL, Cheetham K, Coffey M, Nuovo G, Kalinski P, Zhang B, Arora SP, Fountzilas C. Pembrolizumab in Combination with the Oncolytic Virus Pelareorep and Chemotherapy in Patients with Advanced Pancreatic Adenocarcinoma: A Phase Ib Study. Clin Cancer Res 2019; 26:71-81. [PMID: 31694832 DOI: 10.1158/1078-0432.ccr-19-2078] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/16/2019] [Accepted: 10/09/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE Pelareorep is an intravenously delivered oncolytic reovirus that can induce a T-cell-inflamed phenotype in pancreatic ductal adenocarcinoma (PDAC). Tumor tissues from patients treated with pelareorep have shown reovirus replication, T-cell infiltration, and upregulation of PD-L1. We hypothesized that pelareorep in combination with pembrolizumab and chemotherapy in patients with PDAC would be safe and effective. PATIENTS AND METHODS A phase Ib single-arm study enrolled patients with PDAC who progressed after first-line treatment. Patients received pelareorep, pembrolizumab, and either 5-fluorouracil, gemcitabine, or irinotecan until disease progression or unacceptable toxicity. Study objectives included safety and dose-limiting toxicities, tumor response, evaluation for reovirus replication, and immune analysis in peripheral blood and tumor biopsies. RESULTS Eleven patients were enrolled. Disease control was achieved in three of the 10 efficacy-evaluable patients. One patient achieved partial response for 17.4 months. Two additional patients achieved stable disease, lasting 9 and 4 months, respectively. Treatment was well tolerated, with mostly grade 1 or 2 treatment-related adverse events, including flu-like symptoms. Viral replication was observed in on-treatment tumor biopsies. T-cell receptor sequencing from peripheral blood revealed the creation of new T-cell clones during treatment. High peripheral clonality and changes in the expression of immune genes were observed in patients with clinical benefit. CONCLUSIONS Pelareorep and pembrolizumab added to chemotherapy did not add significant toxicity and showed encouraging efficacy. Further evaluation of pelareorep and anti-PD-1 therapy is ongoing in follow-up studies. This research highlights the potential utility of several pretreatment and on-treatment biomarkers for pelareorep therapy warranting further investigation.
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Affiliation(s)
- Devalingam Mahalingam
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois. .,Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas
| | | | - Kevin H Eng
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Paul Fields
- Adaptive Biotechnologies, Seattle, Washington
| | | | - Jennifer L Moseley
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas
| | | | - Matt Coffey
- Oncolytics Biotech Inc, Calgary, Alberta, Canada
| | - Gerard Nuovo
- Ohio State University Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, Ohio
| | - Pawel Kalinski
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Bin Zhang
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois
| | - Sukeshi Patel Arora
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas
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32
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Schirrmacher V, van Gool S, Stuecker W. Breaking Therapy Resistance: An Update on Oncolytic Newcastle Disease Virus for Improvements of Cancer Therapy. Biomedicines 2019; 7:E66. [PMID: 31480379 PMCID: PMC6783952 DOI: 10.3390/biomedicines7030066] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 12/11/2022] Open
Abstract
Resistance to therapy is a major obstacle to cancer treatment. It may exist from the beginning, or it may develop during therapy. The review focusses on oncolytic Newcastle disease virus (NDV) as a biological agent with potential to break therapy resistance. This avian virus combines, upon inoculation into non-permissive hosts such as human, 12 described anti-neoplastic effects with 11 described immune stimulatory properties. Fifty years of clinical application of NDV give witness to the high safety profile of this biological agent. In 2015, an important milestone was achieved, namely the successful production of NDV according to Good Manufacturing Practice (GMP). Based on this, IOZK in Cologne, Germany, obtained a GMP certificate for the production of a dendritic cell vaccine loaded with tumor antigens from a lysate of patient-derived tumor cells together with immunological danger signals from NDV for intracutaneous application. This update includes single case reports and retrospective analyses from patients treated at IOZK. The review also presents future perspectives, including the concept of in situ vaccination and the combination of NDV or other oncolytic viruses with checkpoint inhibitors.
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Affiliation(s)
| | - Stefaan van Gool
- Immune-Oncological Center Cologne (IOZK), D-50674 Cologne, Germany
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33
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Marchini A, Daeffler L, Pozdeev VI, Angelova A, Rommelaere J. Immune Conversion of Tumor Microenvironment by Oncolytic Viruses: The Protoparvovirus H-1PV Case Study. Front Immunol 2019; 10:1848. [PMID: 31440242 PMCID: PMC6692828 DOI: 10.3389/fimmu.2019.01848] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 07/23/2019] [Indexed: 12/21/2022] Open
Abstract
Cancer cells utilize multiple mechanisms to evade and suppress anticancer immune responses creating a “cold” immunosuppressive tumor microenvironment. Oncolytic virotherapy is emerging as a promising approach to revert tumor immunosuppression and enhance the efficacy of other forms of immunotherapy. Growing evidence indicates that oncolytic viruses (OVs) act in a multimodal fashion, inducing immunogenic cell death and thereby eliciting robust anticancer immune responses. In this review, we summarize information about OV-mediated immune conversion of the tumor microenvironment. As a case study we focus on the rodent protoparvovirus H-1PV and its dual role as an oncolytic and immune modulatory agent. Potential strategies to improve H-1PV anticancer efficacy are also discussed.
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Affiliation(s)
- Antonio Marchini
- Laboratory of Oncolytic Virus Immuno-Therapeutics, Luxembourg Institute of Health, Luxembourg, Luxembourg.,Laboratory of Oncolytic Virus Immuno-Therapeutics, German Cancer Research Center, Heidelberg, Germany
| | - Laurent Daeffler
- Université de Strasbourg, IPHC, Strasbourg, France.,CNRS, UMR7178, Strasbourg, France
| | - Vitaly I Pozdeev
- Laboratory of Oncolytic Virus Immuno-Therapeutics, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Assia Angelova
- Infection, Inflammation and Cancer Program, German Cancer Research Center, Heidelberg, Germany
| | - Jean Rommelaere
- Infection, Inflammation and Cancer Program, German Cancer Research Center, Heidelberg, Germany
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34
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Zhang Y, Zhang H, Wei M, Mou T, Shi T, Ma Y, Cai X, Li Y, Dong J, Wei J. Recombinant Adenovirus Expressing a Soluble Fusion Protein PD-1/CD137L Subverts the Suppression of CD8 + T Cells in HCC. Mol Ther 2019; 27:1906-1918. [PMID: 31466933 DOI: 10.1016/j.ymthe.2019.07.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/23/2019] [Accepted: 07/31/2019] [Indexed: 12/26/2022] Open
Abstract
Oncolytic viruses are an excellent platform for developing effective strategies in cancer immunotherapy. Several challenges remain in the use of viro-immunotherapy for cancer, such as the lack of costimulatory signals and negative regulation of immune checkpoints. In this study, we designed a novel adenovirus expressing a soluble fusion protein, programmed cell death protein 1 (PD-1)/CD137L, which contains the extracellular domains of PD-1 and CD137L at each terminus (Ad5-PC). Ad5-PC preserved the costimulatory activity of CD137L and facilitated the persistence of activated CD8+ T cells. Ad5-PC induced strikingly increased antitumor activity in both ascitic and subcutaneous hepatocellular carcinoma (HCC) tumor models, with 70% and 60% long-term cure rates, respectively. The improved antitumor effect of Ad5-PC was attributed to the sustained high-level lymphocyte activation and interferon (IFN)-γ production in the tumor microenvironment, and was essentially dependent on CD8+ T cells rather than natural killer (NK) cells. Moreover, Ad5-huPC-expressing human soluble PD-1/CD137L fusion protein was effective in suppressing tumor growth and improving survival in a humanized mouse model. We confirmed that Ad5-PC induced tumor-specific and systematic protection against tumor rechallenges at both in situ and distant sites. Thus, Ad5-PC harnesses several distinct functions to efficiently overcome several major hurdles of viro-immunotherapy.
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Affiliation(s)
- Yonghui Zhang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China; Henan Key Laboratory of Stem Cell Differentiation and Modification, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, Henan 450003, China
| | - Hailin Zhang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Mei Wei
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Tao Mou
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Tao Shi
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Yanyu Ma
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Xinyu Cai
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Yunzheng Li
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Jie Dong
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China.
| | - Jiwu Wei
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China.
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35
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Ajina A, Maher J. Synergistic combination of oncolytic virotherapy with CAR T-cell therapy. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2019; 164:217-292. [PMID: 31383406 DOI: 10.1016/bs.pmbts.2019.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
For patients with advanced hematological malignancies the therapeutic landscape has been transformed by the emergence of adoptive cell transfer utilizing autologous chimeric antigen receptor (CAR)-redirected T-cells. However, solid tumors have proved far more resistant to this approach. Here, we summarize the numerous challenges faced by CAR T-cells designed to target solid tumors, highlighting, in particular, issues related to impaired trafficking, expansion, and persistence. In parallel, we draw attention to exciting developments in the burgeoning field of oncolytic virotherapy and posit strategies for the synergistic combination of oncolytic viruses with CAR T-cells to improve outcomes for patients with advanced solid tumors.
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Affiliation(s)
- Adam Ajina
- King's College London, Division of Cancer Studies, Guy's Hospital, London, United Kingdom.
| | - John Maher
- King's College London, Division of Cancer Studies, Guy's Hospital, London, United Kingdom; Department of Clinical Immunology and Allergy, King's College Hospital NHS Foundation Trust, London, United Kingdom; Department of Immunology, Eastbourne Hospital, East Sussex, United Kingdom
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36
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Sivanandam V, LaRocca CJ, Chen NG, Fong Y, Warner SG. Oncolytic Viruses and Immune Checkpoint Inhibition: The Best of Both Worlds. MOLECULAR THERAPY-ONCOLYTICS 2019; 13:93-106. [PMID: 31080879 PMCID: PMC6503136 DOI: 10.1016/j.omto.2019.04.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cancer immunotherapy and the emergence of immune checkpoint inhibitors have markedly changed the treatment paradigm for many cancers. They function to disrupt cancer cell evasion of the immune response and activate sustained anti-tumor immunity. Oncolytic viruses have also emerged as an additional therapeutic agent for cancer treatment. These viruses are designed to target and kill tumor cells while leaving the normal cells unharmed. As part of this process, oncolytic virus infection stimulates anti-cancer immune responses that augment the efficacy of checkpoint inhibition. These viruses have the capability of transforming a “cold” tumor microenvironment with few immune effector cells into a “hot” environment with increased immune cell and cytokine infiltration. For this reason, there are multiple ongoing clinical trials that combine oncolytic virotherapy and immune checkpoint inhibitors. This review will detail the key oncolytic viruses in preclinical and clinical studies and highlight the results of their testing with checkpoint inhibitors.
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Affiliation(s)
- Venkatesh Sivanandam
- Department of Surgery, City of Hope National Medical Center, Duarte, CA 91010, USA
| | | | - Nanhai G Chen
- Department of Surgery, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Yuman Fong
- Department of Surgery, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Susanne G Warner
- Department of Surgery, City of Hope National Medical Center, Duarte, CA 91010, USA
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37
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Martinez-Quintanilla J, Seah I, Chua M, Shah K. Oncolytic viruses: overcoming translational challenges. J Clin Invest 2019; 129:1407-1418. [PMID: 30829653 DOI: 10.1172/jci122287] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Oncolytic virotherapy (OVT) is a promising approach in which WT or engineered viruses selectively replicate and destroy tumor cells while sparing normal ones. In the last two decades, different oncolytic viruses (OVs) have been modified and tested in a number of preclinical studies, some of which have led to clinical trials in cancer patients. These clinical trials have revealed several critical limitations with regard to viral delivery, spread, resistance, and antiviral immunity. Here, we focus on promising research strategies that have been developed to overcome the aforementioned obstacles. Such strategies include engineering OVs to target a broad spectrum of tumor cells while evading the immune system, developing unique delivery mechanisms, combining other immunotherapeutic agents with OVT, and using clinically translatable mouse tumor models to potentially translate OVT more readily into clinical settings.
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Affiliation(s)
| | - Ivan Seah
- Center for Stem Cell Therapeutics and Imaging and
| | - Melissa Chua
- Center for Stem Cell Therapeutics and Imaging and.,Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Khalid Shah
- Center for Stem Cell Therapeutics and Imaging and.,Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA
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38
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Chon HJ, Lee WS, Yang H, Kong SJ, Lee NK, Moon ES, Choi J, Han EC, Kim JH, Ahn JB, Kim JH, Kim C. Tumor Microenvironment Remodeling by Intratumoral Oncolytic Vaccinia Virus Enhances the Efficacy of Immune-Checkpoint Blockade. Clin Cancer Res 2018; 25:1612-1623. [PMID: 30538109 DOI: 10.1158/1078-0432.ccr-18-1932] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 10/22/2018] [Accepted: 12/06/2018] [Indexed: 02/04/2023]
Abstract
PURPOSE Cancer immunotherapy is a potent treatment modality, but its clinical benefit depends on the tumor's immune profile. Here, we used mJX-594 (JX), a targeted and GM-CSF-armed oncolytic vaccinia virus, as a strategy to remodel the tumor microenvironment (TME) and subsequently increase sensitivity to αPD-1 and/or αCTLA-4 immunotherapy. EXPERIMENTAL DESIGN The remodeling of the TME was determined using histologic, flow-cytometric, and NanoString immune profiling analyses. JX was intratumorally injected into implanted Renca kidney tumors or MMTV-PyMT transgenic mouse breast cancers with or without αPD-1 and/or αCTLA-4. Various combination regimens were used to evaluate immunotherapeutic anticancer responses. RESULTS Intratumoral injection of JX remodeled the TME through dynamic changes in the immune system, as shown by increased tumor-infiltrating T cells and upregulation of immune-related gene signatures. This remodeling induced conversion of a noninflamed tumor into an inflamed tumor. JX virotherapy led to enhanced abscopal effects in distant tumors, with increased intratumoral infiltration of CD8+ T cells. A depletion study revealed that GM-CSF is an indispensable regulator of anticancer efficacy of JX. Dual-combination therapy with intratumoral JX and systemic αPD-1 or αCTLA-4 further enhanced the anticancer immune response, regardless of various treatment schedules. Of note, triple combination immunotherapy with JX, αPD-1, and αCTLA-4 elicited the most potent anticancer immunity and induced complete tumor regression and long-term overall survival. CONCLUSIONS Our results show that intratumoral JX treatment induces dramatic remodeling of the TME and more potently suppresses cancer progression with immune-checkpoint blockades by overcoming resistance to immunotherapy.
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Affiliation(s)
- Hong Jae Chon
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea.,Yonsei Graduate School, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won Suk Lee
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
| | - Hannah Yang
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
| | - So Jung Kong
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
| | - Na Keum Lee
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
| | | | - Jiwon Choi
- SillaJen, Inc., Seoul, Republic of Korea
| | - Eun Chun Han
- Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
| | - Joo Hoon Kim
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
| | - Joong Bae Ahn
- Yonsei Graduate School, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo Hang Kim
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Chan Kim
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea. .,Laboratory of Translational Immuno-Oncology, Seongnam, Republic of Korea
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39
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PTEN expression by an oncolytic herpesvirus directs T-cell mediated tumor clearance. Nat Commun 2018; 9:5006. [PMID: 30479334 PMCID: PMC6258708 DOI: 10.1038/s41467-018-07344-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 10/22/2018] [Indexed: 12/19/2022] Open
Abstract
Engineered oncolytic viruses are used clinically to destroy cancer cells and have the ability to boost anticancer immunity. Phosphatase and tensin homolog deleted on chromosome 10 loss is common across a broad range of malignancies, and is implicated in immune escape. The N-terminally extended isoform, phosphatase and tensin homolog deleted on chromosome 10 alpha (PTENα), regulates cellular functions including protein kinase B signaling and mitochondrial adenosine triphosphate production. Here we constructed HSV-P10, a replicating, PTENα expressing oncolytic herpesvirus, and demonstrate that it inhibits PI3K/AKT signaling, increases cellular adenosine triphosphate secretion, and reduces programmed death-ligand 1 expression in infected tumor cells, thus priming an adaptive immune response and overcoming tumor immune escape. A single dose of HSV-P10 resulted in long term survivors in mice bearing intracranial tumors, priming anticancer T-cell immunity leading to tumor rejection. This implicates HSV-P10 as an oncolytic and immune stimulating therapeutic for anticancer therapy. Oncolytic viruses are a promising therapeutic approach for cancer treatment. The authors demonstrate the efficacy of an engineered HSV-1 expressing PTENα as an oncolytic and immune stimulating therapy against brain cancer metastases.
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40
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Pol JG, Lévesque S, Workenhe ST, Gujar S, Le Boeuf F, Clements DR, Fahrner JE, Fend L, Bell JC, Mossman KL, Fucikova J, Spisek R, Zitvogel L, Kroemer G, Galluzzi L. Trial Watch: Oncolytic viro-immunotherapy of hematologic and solid tumors. Oncoimmunology 2018; 7:e1503032. [PMID: 30524901 PMCID: PMC6279343 DOI: 10.1080/2162402x.2018.1503032] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 07/15/2018] [Indexed: 02/08/2023] Open
Abstract
Oncolytic viruses selectively target and kill cancer cells in an immunogenic fashion, thus supporting the establishment of therapeutically relevant tumor-specific immune responses. In 2015, the US Food and Drug Administration (FDA) approved the oncolytic herpes simplex virus T-VEC for use in advanced melanoma patients. Since then, a plethora of trials has been initiated to assess the safety and efficacy of multiple oncolytic viruses in patients affected with various malignancies. Here, we summarize recent preclinical and clinical progress in the field of oncolytic virotherapy.
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Affiliation(s)
- Jonathan G. Pol
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM, Paris, France
- Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
| | - Sarah Lévesque
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM, Paris, France
- Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
| | - Samuel T. Workenhe
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Shashi Gujar
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
- Department of Microbiology and Immunology, Dalhousie University, NS, Canada
- Department of Biology, Dalhousie University, NS, Canada
- Centre for Innovative and Collaborative Health Sciences Research, Quality and System Performance, IWK Health Centre, Halifax, NS, Canada
| | - Fabrice Le Boeuf
- Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | | | - Jean-Eudes Fahrner
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM, Villejuif, France
- Transgene S.A., Illkirch-Graffenstaden, France
| | | | - John C. Bell
- Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Karen L. Mossman
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Jitka Fucikova
- Sotio a.c., Prague, Czech Republic
- Department of Immunology, 2nd Faculty of Medicine, University Hospital Motol, Charles University, Prague, Czech Republic
| | - Radek Spisek
- Sotio a.c., Prague, Czech Republic
- Department of Immunology, 2nd Faculty of Medicine, University Hospital Motol, Charles University, Prague, Czech Republic
| | - Laurence Zitvogel
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM, Villejuif, France
| | - Guido Kroemer
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM, Paris, France
- Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, Paris, France
- Department of Women’s and Children’s Health, Karolinska University Hospital, Stockholm, Sweden
| | - Lorenzo Galluzzi
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
- Sandra and Edward Meyer Cancer Center, New York, NY, USA
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41
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Bourhill T, Mori Y, Rancourt DE, Shmulevitz M, Johnston RN. Going (Reo)Viral: Factors Promoting Successful Reoviral Oncolytic Infection. Viruses 2018; 10:E421. [PMID: 30103501 PMCID: PMC6116061 DOI: 10.3390/v10080421] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 02/06/2023] Open
Abstract
Oncolytic viruses show intriguing potential as cancer therapeutic agents. These viruses are capable of selectively targeting and killing cancerous cells while leaving healthy cells largely unaffected. The use of oncolytic viruses for cancer treatments in selected circumstances has recently been approved by the Food and Drug Administration (FDA) of the US and work is progressing on engineering viral vectors for enhanced selectivity, efficacy and safety. However, a better fundamental understanding of tumour and viral biology is essential for the continued advancement of the oncolytic field. This knowledge will not only help to engineer more potent and effective viruses but may also contribute to the identification of biomarkers that can determine which patients will benefit most from this treatment. A mechanistic understanding of the overlapping activity of viral and standard chemotherapeutics will enable the development of better combinational approaches to improve patient outcomes. In this review, we will examine each of the factors that contribute to productive viral infections in cancerous cells versus healthy cells. Special attention will be paid to reovirus as it is a well-studied virus and the only wild-type virus to have received orphan drug designation by the FDA. Although considerable insight into reoviral biology exists, there remain numerous deficiencies in our understanding of the factors regulating its successful oncolytic infection. Here we will discuss what is known to regulate infection as well as speculate about potential new mechanisms that may enhance successful replication. A joint appreciation of both tumour and viral biology will drive innovation for the next generation of reoviral mediated oncolytic therapy.
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Affiliation(s)
- Tarryn Bourhill
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
| | - Yoshinori Mori
- Department of Gastroenterology, Nagoya City West Medical Center, Kita-Ku, Nagoya 467-8601, Japan.
| | - Derrick E Rancourt
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
| | - Maya Shmulevitz
- Department of Medical Microbiology and Immunology, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB T6G 2E1, Canada.
| | - Randal N Johnston
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
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42
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Chen CY, Hutzen B, Wedekind MF, Cripe TP. Oncolytic virus and PD-1/PD-L1 blockade combination therapy. Oncolytic Virother 2018; 7:65-77. [PMID: 30105219 PMCID: PMC6074764 DOI: 10.2147/ov.s145532] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Oncolytic viruses are lytic for many types of cancers but are attenuated or replication-defective in normal tissues. Aside from tumor lysis, oncolytic viruses can induce host immune responses against cancer cells and may thus be viewed as a form of immunotherapy. Although recent successes with checkpoint inhibitors have shown that enhancing antitumor immunity can be effective, the dynamic nature of the immunosuppressive tumor microenvironment presents significant hurdles to the broader application of these therapies. Targeting one immune-suppressive pathway may not be sufficient to eliminate tumors. Here we focus on the development of the combination of oncolytic virotherapy with checkpoint inhibitors designed to target the programmed cell death protein 1 and programmed cell death ligand 1 signaling axis. We also discuss future directions for the clinical application of this novel combination therapy.
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Affiliation(s)
- Chun-Yu Chen
- Department of Pediatrics, Center for Childhood Cancer and Blood Diseases, Nationwide Children's Hospital,
| | - Brian Hutzen
- Department of Pediatrics, Center for Childhood Cancer and Blood Diseases, Nationwide Children's Hospital,
| | - Mary F Wedekind
- Department of Pediatrics, Center for Childhood Cancer and Blood Diseases, Nationwide Children's Hospital, .,Division of Hematology/Oncology/Blood and Marrow Transplantation, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA,
| | - Timothy P Cripe
- Department of Pediatrics, Center for Childhood Cancer and Blood Diseases, Nationwide Children's Hospital, .,Division of Hematology/Oncology/Blood and Marrow Transplantation, Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA,
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43
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Twumasi-Boateng K, Pettigrew JL, Kwok YYE, Bell JC, Nelson BH. Oncolytic viruses as engineering platforms for combination immunotherapy. Nat Rev Cancer 2018; 18:419-432. [PMID: 29695749 DOI: 10.1038/s41568-018-0009-4] [Citation(s) in RCA: 257] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To effectively build on the recent successes of immune checkpoint blockade, adoptive T cell therapy and cancer vaccines, it is critical to rationally design combination strategies that will increase and extend efficacy to a larger proportion of patients. For example, the combination of anti-cytotoxic T lymphocyte-associated antigen 4 (CTLA4) and anti-programmed cell death protein 1 (PD1) immune checkpoint inhibitors essentially doubles the response rate in certain patients with metastatic melanoma. However, given the heterogeneity of cancer, it seems likely that even more complex combinations of immunomodulatory agents may be required to obtain consistent, durable therapeutic responses against a broad spectrum of cancers. This carries serious implications in terms of toxicities for patients, feasibility for care providers and costs for health-care systems. A compelling solution is offered by oncolytic viruses (OVs), which can be engineered to selectively replicate within and destroy tumour tissue while simultaneously augmenting antitumour immunity. In this Opinion article, we argue that the future of immunotherapy will include OVs that function as multiplexed immune-modulating platforms expressing factors such as immune checkpoint inhibitors, tumour antigens, cytokines and T cell engagers. We illustrate this concept by following the trials and tribulations of tumour-reactive T cells from their initial priming through to the execution of cytotoxic effector function in the tumour bed. We highlight the myriad opportunities for OVs to help overcome critical barriers in the T cell journey, leading to new synergistic mechanisms in the battle against cancer.
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Affiliation(s)
- Kwame Twumasi-Boateng
- Trev and Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
| | - Jessica L Pettigrew
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Y Y Eunice Kwok
- Trev and Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
| | - John C Bell
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada.
| | - Brad H Nelson
- Trev and Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada.
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada.
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.
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44
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Emerging functional markers for cancer stem cell-based therapies: Understanding signaling networks for targeting metastasis. Semin Cancer Biol 2018; 53:90-109. [PMID: 29966677 DOI: 10.1016/j.semcancer.2018.06.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/20/2018] [Accepted: 06/28/2018] [Indexed: 12/18/2022]
Abstract
Metastasis is one of the most challenging issues in cancer patient management, and effective therapies to specifically target disease progression are missing, emphasizing the urgent need for developing novel anti-metastatic therapeutics. Cancer stem cells (CSCs) gained fast attention as a minor population of highly malignant cells within liquid and solid tumors that are responsible for tumor onset, self-renewal, resistance to radio- and chemotherapies, and evasion of immune surveillance accelerating recurrence and metastasis. Recent progress in the identification of their phenotypic and molecular characteristics and interactions with the tumor microenvironment provides great potential for the development of CSC-based targeted therapies and radical improvement in metastasis prevention and cancer patient prognosis. Here, we report on newly uncovered signaling mechanisms controlling CSC's aggressiveness and treatment resistance, and CSC-specific agents and molecular therapeutics, some of which are currently under investigation in clinical trials, gearing towards decisive functional CSC intrinsic or surface markers. One special research focus rests upon subverted regulatory pathways such as insulin-like growth factor 1 receptor signaling and its interactors in metastasis-initiating cell populations directly related to the gain of stem cell- and EMT-associated properties, as well as key components of the E2F transcription factor network regulating metastatic progression, microenvironmental changes, and chemoresistance. In addition, the study provides insight into systems biology tools to establish complex molecular relationships behind the emergence of aggressive phenotypes from high-throughput data that rely on network-based analysis and their use to investigate immune escape mechanisms or predict clinical outcome-relevant CSC receptor signaling signatures. We further propose that customized vector technologies could drastically enhance systemic drug delivery to target sites, and summarize recent progress and remaining challenges. This review integrates available knowledge on CSC biology, computational modeling approaches, molecular targeting strategies, and delivery techniques to envision future clinical therapies designed to conquer metastasis-initiating cells.
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45
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Oseledchyk A, Ricca JM, Gigoux M, Ko B, Redelman-Sidi G, Walther T, Liu C, Iyer G, Merghoub T, Wolchok JD, Zamarin D. Lysis-independent potentiation of immune checkpoint blockade by oncolytic virus. Oncotarget 2018; 9:28702-28716. [PMID: 29983890 PMCID: PMC6033351 DOI: 10.18632/oncotarget.25614] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 05/31/2018] [Indexed: 12/21/2022] Open
Abstract
Intratumoral therapy with oncolytic viruses is increasingly being explored as a strategy to potentiate an immune response against cancer, but it remains unknown whether such therapy should be restricted to cancers sensitive to virus-mediated lysis. Using Newcastle Disease Virus (NDV) as a model, we explore immunogenic potential of an oncolytic virus in bladder cancer, where existing immunotherapy with PD-1 and PD-L1-targeting antibodies to date has shown suboptimal response rates. Infection of human and mouse bladder cancer cells with NDV resulted in immunogenic cell death, activation of innate immune pathways, and upregulation of MHC and PD-L1 in all tested cell lines, including the cell lines completely resistant to NDV-mediated lysis. In a bilateral flank NDV-lysis-resistant syngeneic murine bladder cancer model, intratumoral therapy with NDV led to an increase of immune infiltration in both treated and distant tumors and a shift from an inhibitory to effector T cell phenotype. Consequently, combination of intratumoral NDV with systemic PD-1 or CTLA-4 blockade led to improved local and abscopal tumor control and overall survival. These findings encourage future clinical trials combining intratumoral NDV therapy with systemic immunomodulatory agents and underscore the rationale for such treatments irrespective of tumor cell sensitivity to NDV-mediated lysis.
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Affiliation(s)
- Anton Oseledchyk
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jacob M Ricca
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mathieu Gigoux
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Brian Ko
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gil Redelman-Sidi
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Weill Cornell Medical College, New York, NY, USA
| | - Tyler Walther
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cailian Liu
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gopa Iyer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Weill Cornell Medical College, New York, NY, USA
| | - Taha Merghoub
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Weill Cornell Medical College, New York, NY, USA.,Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jedd D Wolchok
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Weill Cornell Medical College, New York, NY, USA.,Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Dmitriy Zamarin
- Ludwig Collaborative Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Swim Across America Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Weill Cornell Medical College, New York, NY, USA.,Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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46
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Mostafa AA, Meyers DE, Thirukkumaran CM, Liu PJ, Gratton K, Spurrell J, Shi Q, Thakur S, Morris DG. Oncolytic Reovirus and Immune Checkpoint Inhibition as a Novel Immunotherapeutic Strategy for Breast Cancer. Cancers (Basel) 2018; 10:cancers10060205. [PMID: 29914097 PMCID: PMC6025420 DOI: 10.3390/cancers10060205] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/08/2018] [Accepted: 06/08/2018] [Indexed: 02/07/2023] Open
Abstract
As the current efficacy of oncolytic viruses (OVs) as monotherapy is limited, exploration of OVs as part of a broader immunotherapeutic treatment strategy for cancer is necessary. Here, we investigated the ability for immune checkpoint blockade to enhance the efficacy of oncolytic reovirus (RV) for the treatment of breast cancer (BrCa). In vitro, oncolysis and cytokine production were assessed in human and murine BrCa cell lines following RV exposure. Furthermore, RV-induced upregulation of tumor cell PD-L1 was evaluated. In vivo, the immunocompetent, syngeneic EMT6 murine model of BrCa was employed to determine therapeutic and tumor-specific immune responses following treatment with RV, anti-PD-1 antibodies or in combination. RV-mediated oncolysis and cytokine production were observed following BrCa cell infection and RV upregulated tumor cell expression of PD-L1. In vivo, RV monotherapy significantly reduced disease burden and enhanced survival in treated mice, and was further enhanced by PD-1 blockade. RV therapy increased the number of intratumoral regulatory T cells, which was reversed by the addition of PD-1 blockade. Finally, dual treatment led to the generation of a systemic adaptive anti-tumor immune response evidenced by an increase in tumor-specific IFN-γ producing CD8+ T cells, and immunity from tumor re-challenge. The combination of PD-1 blockade and RV appears to be an efficacious immunotherapeutic strategy for the treatment of BrCa, and warrants further investigation in early-phase clinical trials.
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Affiliation(s)
- Ahmed A Mostafa
- Department of Pathology and Laboratory Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada.
- Histocompatibility and Immunogenetics, Calgary Lab Services, 3535 Research Road NW, Calgary, AB T2L 2K8, Canada.
| | - Daniel E Meyers
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
- Tom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
| | - Chandini M Thirukkumaran
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
- Tom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
| | - Peter J Liu
- Faculty of Medicine, University of Toronto, King's College Circle, Toronto, ON M5S 1A8, Canada.
| | - Kathy Gratton
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
| | - Jason Spurrell
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
- Tom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
| | - Qiao Shi
- Tom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
| | - Satbir Thakur
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
- Tom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
| | - Don G Morris
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
- Tom Baker Cancer Centre, 1331 29 Street NW, Calgary, AB T2N 4N2, Canada.
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47
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Phillips MB, Stuart JD, Rodríguez Stewart RM, Berry JT, Mainou BA, Boehme KW. Current understanding of reovirus oncolysis mechanisms. Oncolytic Virother 2018; 7:53-63. [PMID: 29942799 PMCID: PMC6005300 DOI: 10.2147/ov.s143808] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mammalian orthoreovirus (reovirus) is under development as a cancer virotherapy. Clinical trials demonstrate that reovirus-based therapies are safe and tolerated in patients with a wide variety of cancers. Although reovirus monotherapy has proven largely ineffective, reovirus sensitizes cancer cells to existing chemotherapeutic agents and radiation. Clinical trials are underway to test the efficacy of reovirus in combination with chemotherapeutic and radiation regimens and to evaluate the effectiveness of reovirus in conjunction with immunotherapies. Central to the use of reovirus to treat cancer is its capacity to directly kill cancer cells and alter the cellular environment to augment other therapies. Apoptotic cell death is a prominent mechanism of reovirus cancer cell killing. However, reoviruses can also kill cancer cells through nonapoptotic mechanisms. Here, we describe mechanisms of reovirus cancer cell killing, highlight how reovirus is used in combination with existing cancer treatments, and discuss what is known as to how reovirus modulates cancer immunotherapy.
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Affiliation(s)
- Matthew B Phillips
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Atlanta, GA, USA
| | - Johnasha D Stuart
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Atlanta, GA, USA
| | | | | | | | - Karl W Boehme
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Atlanta, GA, USA
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48
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Martin NT, Bell JC. Oncolytic Virus Combination Therapy: Killing One Bird with Two Stones. Mol Ther 2018; 26:1414-1422. [PMID: 29703699 PMCID: PMC5986726 DOI: 10.1016/j.ymthe.2018.04.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 03/29/2018] [Accepted: 04/01/2018] [Indexed: 02/08/2023] Open
Abstract
Over the last 60 years an eclectic collection of microbes has been tested in a variety of pre-clinical models as anti-cancer agents. At the forefront of this research are a number of virus-based platforms that have shown exciting activity in a variety of pre-clinical models and are collectively referred to as oncolytic viruses. Our true understanding of the potential and limitations of this therapeutic modality has been substantially advanced through clinical studies carried out over the last 25 years. Perhaps not surprising, as with all other cancer therapeutics, it has become clear that current oncolytic virus therapeutics on their own are unlikely to be effective in the majority of patients. The greatest therapeutic gains will therefore be made through thoughtful combination strategies built upon an understanding of cancer biology.
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Affiliation(s)
- Nikolas Tim Martin
- Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - John Cameron Bell
- Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada.
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49
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de Graaf JF, de Vor L, Fouchier RAM, van den Hoogen BG. Armed oncolytic viruses: A kick-start for anti-tumor immunity. Cytokine Growth Factor Rev 2018; 41:28-39. [PMID: 29576283 PMCID: PMC7108398 DOI: 10.1016/j.cytogfr.2018.03.006] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 03/17/2018] [Indexed: 12/16/2022]
Abstract
Oncolytic viruses (OVs), viruses that specifically result in killing tumor cells, represent a promising class of cancer therapy. Recently, the focus in the OV therapy field has shifted from their direct oncolytic effect to their immune stimulatory effect. OV therapy can function as a "kick start" for the antitumor immune response by releasing tumor associated antigens and release of inflammatory signals. Combining OVs with immune modulators could enhance the efficacy of both immune and OV therapies. Additionally, genetic engineering of OVs allows local expression of immune therapeutics, thereby reducing related toxicities. Different options to modify the tumor microenvironment in combination with OV therapy have been explored. The possibilities and obstacles of these combinations will be discussed in this review.
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Affiliation(s)
- J F de Graaf
- Department of Viroscience, Erasmus MC, Rotterdam, The Netherlands.
| | - L de Vor
- Department of Viroscience, Erasmus MC, Rotterdam, The Netherlands.
| | - R A M Fouchier
- Department of Viroscience, Erasmus MC, Rotterdam, The Netherlands.
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50
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Zemp F, Rajwani J, Mahoney DJ. Rhabdoviruses as vaccine platforms for infectious disease and cancer. Biotechnol Genet Eng Rev 2018; 34:122-138. [PMID: 29781359 DOI: 10.1080/02648725.2018.1474320] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The family Rhabdoviridae (RV) comprises a large, genetically diverse collection of single-stranded, negative sense RNA viruses from the order Mononegavirales. Several RV members are being developed as live-attenuated vaccine vectors for the prevention or treatment of infectious disease and cancer. These include the prototype recombinant Vesicular Stomatitis Virus (rVSV) and the more recently developed recombinant Maraba Virus, both species within the genus Vesiculoviridae. A relatively strong safety profile in humans, robust immunogenicity and genetic malleability are key features that make the RV family attractive vaccine platforms. Currently, the rVSV vector is in preclinical development for vaccination against numerous high-priority infectious diseases, with clinical evaluation underway for HIV/AIDS and Ebola virus disease. Indeed, the success of the rVSV-ZEBOV vaccine during the 2014-15 Ebola virus outbreak in West Africa highlights the therapeutic potential of rVSV as a vaccine vector for acute, life-threatening viral illnesses. The rVSV and rMaraba platforms are also being tested as 'oncolytic' cancer vaccines in a series of phase 1-2 clinical trials, after being proven effective at eliciting immune-mediated tumour regression in preclinical mouse models. In this review, we discuss the biological and genetic features that make RVs attractive vaccine platforms and the development and ongoing testing of rVSV and rMaraba strains as vaccine vectors for infectious disease and cancer.
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Affiliation(s)
- Franz Zemp
- a Alberta Children's Hospital Research Institute , Calgary , Canada.,b Charbonneau Cancer Research Institute , Calgary , Canada
| | - Jahanara Rajwani
- a Alberta Children's Hospital Research Institute , Calgary , Canada.,b Charbonneau Cancer Research Institute , Calgary , Canada.,d Department of Biochemistry and Molecular Biology, Faculty of Medicine , University of Calgary , Calgary , Canada
| | - Douglas J Mahoney
- a Alberta Children's Hospital Research Institute , Calgary , Canada.,b Charbonneau Cancer Research Institute , Calgary , Canada.,c Department of Microbiology, Immunology and Infectious Disease , Faculty of Medicine , University of Calgary , Calgary , Canada.,d Department of Biochemistry and Molecular Biology, Faculty of Medicine , University of Calgary , Calgary , Canada
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