1
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Stergiopoulos GM, Iankov I, Galanis E. Personalizing Oncolytic Immunovirotherapy Approaches. Mol Diagn Ther 2024; 28:153-168. [PMID: 38150172 DOI: 10.1007/s40291-023-00689-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2023] [Indexed: 12/28/2023]
Abstract
Development of successful cancer therapeutics requires exploration of the differences in genetics, metabolism, and interactions with the immune system among malignant and normal cells. The clinical observation of spontaneous tumor regression following natural infection with microorganism has created the premise of their use as cancer therapeutics. Oncolytic viruses (OVs) originate from viruses with attenuated virulence in humans, well-characterized vaccine strains of known human pathogens, or engineered replication-deficient viral vectors. Their selectivity is based on receptor expression level and post entry restriction factors that favor replication in the tumor, while keeping the normal cells unharmed. Clinical trials have demonstrated a wide range of patient responses to virotherapy, with subgroups of patients significantly benefiting from OV administration. Tumor-specific gene signatures, including antiviral interferon-stimulated gene (ISG) expression profile, have demonstrated a strong correlation with tumor permissiveness to infection. Furthermore, the combination of OVs with immunotherapeutics, including anticancer vaccines and immune checkpoint inhibitors [ICIs, such as anti-PD-1/PD-L1 or anti-CTLA-4 and chimeric antigen receptor (CAR)-T or CAR-NK cells], could synergistically improve the therapeutic outcome. Creating response prediction algorithms represents an important step for the transition to individualized immunovirotherapy approaches in the clinic. Integrative predictors could include tumor mutational burden (TMB), inflammatory gene signature, phenotype of tumor-infiltrating lymphocytes, tumor microenvironment (TME), and immune checkpoint receptor expression on both immune and target cells. Additionally, the gut microbiota has recently been recognized as a systemic immunomodulatory factor and could further be used in the optimization of individualized immunovirotherapy algorithms.
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Affiliation(s)
| | - Ianko Iankov
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.
| | - Evanthia Galanis
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Oncology, Mayo Clinic, Rochester, MN, USA.
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2
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Tripodi L, Feola S, Granata I, Whalley T, Passariello M, Capasso C, Coluccino L, Vitale M, Scalia G, Gentile L, De Lorenzo C, Guarracino MR, Castaldo G, D’Argenio V, Szomolay B, Cerullo V, Pastore L. Bifidobacterium affects antitumor efficacy of oncolytic adenovirus in a mouse model of melanoma. iScience 2023; 26:107668. [PMID: 37720092 PMCID: PMC10502363 DOI: 10.1016/j.isci.2023.107668] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/13/2023] [Accepted: 08/16/2023] [Indexed: 09/19/2023] Open
Abstract
Gut microbiota plays a key role in modulating responses to cancer immunotherapy in melanoma patients. Oncolytic viruses (OVs) represent emerging tools in cancer therapy, inducing a potent immunogenic cancer cell death (ICD) and recruiting immune cells in tumors, poorly infiltrated by T cells. We investigated whether the antitumoral activity of oncolytic adenovirus Ad5D24-CpG (Ad-CpG) was gut microbiota-mediated in a syngeneic mouse model of melanoma and observed that ICD was weakened by vancomycin-mediated perturbation of gut microbiota. Ad-CpG efficacy was increased by oral supplementation with Bifidobacterium, reducing melanoma progression and tumor-infiltrating regulatory T cells. Fecal microbiota was enriched in bacterial species belonging to the Firmicutes phylum in mice treated with both Bifidobacterium and Ad-CpG; furthermore, our data suggest that molecular mimicry between melanoma and Bifidobacterium-derived epitopes may favor activation of cross-reactive T cells and constitutes one of the mechanisms by which gut microbiota modulates OVs response.
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Affiliation(s)
- Lorella Tripodi
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Sara Feola
- Drug Research Program (DRP), ImmunoViroTherapy Lab (IVT), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5E, 00790 Helsinki, Finland
| | - Ilaria Granata
- Institute for High-Performance Computing and Networking National Research Council Branch of Naples, 509066 Naples, Naples, Italy
| | - Thomas Whalley
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, Wales, UK
| | - Margherita Passariello
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Cristian Capasso
- Drug Research Program (DRP), ImmunoViroTherapy Lab (IVT), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5E, 00790 Helsinki, Finland
| | - Ludovica Coluccino
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Maria Vitale
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
| | - Giulia Scalia
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
| | - Laura Gentile
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
| | - Claudia De Lorenzo
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Mario Rosario Guarracino
- University of Cassino and Southern Lazio Department of Economics and Law, 154984 Cassino, Frosinone, Italy
| | - Giuseppe Castaldo
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Valeria D’Argenio
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Department of Human Sciences and Quality of Life Promotion, San Raffaele Open University, Rome, Italy
| | - Barbara Szomolay
- Division of Infection and Immunity and Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF14 4XN, Wales, UK
| | - Vincenzo Cerullo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
- Drug Research Program (DRP), ImmunoViroTherapy Lab (IVT), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5E, 00790 Helsinki, Finland
| | - Lucio Pastore
- CEINGE Biotecnologie Avanzate Franco Salvatore s.c.a.r.l, Napoli, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy
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3
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Bahreyni A, Liu H, Mohamud Y, Xue YC, Fan YM, Zhang YL, Luo H. A combination of genetically engineered oncolytic virus and melittin-CpG for cancer viro-chemo-immunotherapy. BMC Med 2023; 21:193. [PMID: 37226233 DOI: 10.1186/s12916-023-02901-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/12/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Immunotherapy has emerged as an efficient therapeutic approach for cancer management. However, stimulation of host immune system against cancer cells often fails to achieve promising clinical outcomes mainly owing to the immunosuppressive characteristics of the tumor microenvironment (TME). Combination therapeutics that can trigger sustained immunogenic cell death (ICD) have provided new opportunities for cancer treatment. METHODS In this study, we designed and applied an ICD inducer regimen, including a genetically engineered oncolytic virus (miRNA-modified coxsackieviruses B3, miR-CVB3), a pore-forming lytic peptide (melittin, found in bee venom), and a synthetic toll-like receptor 9 ligand (CpG oligodeoxynucleotides), for breast cancer and melanoma treatment. We compared the anti-tumor efficacy of miR-CVB3 and CpG-melittin (CpGMel) alone and in combination (miR-CVB3 + CpGMel) and investigated possible mechanisms involved. RESULTS We demonstrated that miR-CVB3 + CpGMel had no major impact on viral growth, while enhancing the cellular uptake of CpGMel in vitro. We further showed that combination therapy led to significant increases in tumor cell death and release of damage-associated molecular patterns compared with individual treatment. In vivo studies in 4T1 tumor-bearing Balb/c mice revealed that both primary and distant tumors were significantly suppressed, and the survival rate was significantly prolonged after administration of miR-CVB3 + CpGMel compared with single treatment. This anti-tumor effect was accompanied by increased ICD and immune cell infiltration into the TME. Safety analysis showed no significant pathological abnormalities in Balb/c mice. Furthermore, the developed therapeutic regimen also demonstrated a great anti-tumor activity in B16F10 melanoma tumor-bearing C57BL/6 J mice. CONCLUSIONS Overall, our findings indicate that although single treatment using miR-CVB3 or CpGMel can efficiently delay tumor growth, combining oncolytic virus-based therapy can generate even stronger anti-tumor immunity, leading to a greater reduction in tumor size.
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Affiliation(s)
- Amirhossein Bahreyni
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Huitao Liu
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Experimental Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Yasir Mohamud
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Yuan Chao Xue
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada
| | - Yiyun Michelle Fan
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Cellular and Physiological Sciences, University of British Columbia, Endowment Lands, Canada
| | - Yizhuo Lyanne Zhang
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada
- Department of Cellular and Physiological Sciences, University of British Columbia, Endowment Lands, Canada
| | - Honglin Luo
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada.
- Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, BC, V6Z 1Y6, Canada.
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4
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Liu J, Piranlioglu R, Ye F, Shu K, Lei T, Nakashima H. Immunosuppressive cells in oncolytic virotherapy for glioma: challenges and solutions. Front Cell Infect Microbiol 2023; 13:1141034. [PMID: 37234776 PMCID: PMC10206241 DOI: 10.3389/fcimb.2023.1141034] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Glioblastoma is a highly aggressive form of brain cancer characterized by the abundance of myeloid lineage cells in the tumor microenvironment. Tumor-associated macrophages and microglia (TAM) and myeloid-derived suppressor cells (MDSCs), play a pivotal role in promoting immune suppression and tumor progression. Oncolytic viruses (OVs) are self-amplifying cytotoxic agents that can stimulate local anti-tumor immune responses and have the potential to suppress immunosuppressive myeloid cells and recruit tumor-infiltrating T lymphocytes (TILs) to the tumor site, leading to an adaptive immune response against tumors. However, the impact of OV therapy on the tumor-resident myeloid population and the subsequent immune responses are not yet fully understood. This review provides an overview of how TAM and MDSC respond to different types of OVs, and combination therapeutics that target the myeloid population to promote anti-tumor immune responses in the glioma microenvironment.
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Affiliation(s)
- Junfeng Liu
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Raziye Piranlioglu
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Fei Ye
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Shu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Lei
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hiroshi Nakashima
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
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Omole RK, Oluwatola O, Akere MT, Eniafe J, Agboluaje EO, Daramola OB, Ayantunji YJ, Omotade TI, Torimiro N, Ayilara MS, Adeyemi OI, Salinsile OS. Comprehensive assessment on the applications of oncolytic viruses for cancer immunotherapy. Front Pharmacol 2022; 13:1082797. [PMID: 36569326 PMCID: PMC9772532 DOI: 10.3389/fphar.2022.1082797] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/24/2022] [Indexed: 12/13/2022] Open
Abstract
The worldwide burden of cancers is increasing at a very high rate, including the aggressive and resistant forms of cancers. Certain levels of breakthrough have been achieved with the conventional treatment methods being used to treat different forms of cancers, but with some limitations. These limitations include hazardous side effects, destruction of non-tumor healthy cells that are rapidly dividing and developing, tumor resistance to anti-cancer drugs, damage to tissues and organs, and so on. However, oncolytic viruses have emerged as a worthwhile immunotherapeutic option for the treatment of different types of cancers. In this treatment approach, oncolytic viruses are being modeled to target cancer cells with optimum cytotoxicity and spare normal cells with optimal safety, without the oncolytic viruses themselves being killed by the host immune defense system. Oncolytic viral infection of the cancer cells are also being genetically manipulated (either by removal or addition of certain genes into the oncolytic virus genome) to make the tumor more visible and available for attack by the host immune cells. Hence, different variants of these viruses are being developed to optimize their antitumor effects. In this review, we examined how grave the burden of cancer is on a global level, particularly in sub-Saharan Africa, major conventional therapeutic approaches to the treatment of cancer and their individual drawbacks. We discussed the mechanisms of action employed by these oncolytic viruses and different viruses that have found their relevance in the fight against various forms of cancers. Some pre-clinical and clinical trials that involve oncolytic viruses in cancer management were reported. This review also examined the toxicity and safety concerns surrounding the adoption of oncolytic viro-immunotherapy for the treatment of cancers and the likely future directions for researchers and general audience who wants updated information.
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Affiliation(s)
- Richard Kolade Omole
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria,Microbiology Unit, Department of Applied Sciences, Osun State College of Technology, Esa-Oke, Nigeria,*Correspondence: Richard Kolade Omole,
| | - Oluwaseyi Oluwatola
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, United States,Department of Immunology, Moffit Cancer Center, Tampa, FL, United States
| | - Millicent Tambari Akere
- Department of Medicinal and Biological Chemistry, University of Toledo, Toledo, OH, United States
| | - Joseph Eniafe
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | | | | | - Yemisi Juliet Ayantunji
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria,Advanced Space Technology Applications Laboratory, Cooperative Information Network, National Space Research and Development Agency, Ile-Ife, Nigeria
| | | | - Nkem Torimiro
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Modupe Stella Ayilara
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho, South Africa
| | - Oluwole Isaac Adeyemi
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
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Beasley GM, Brown MC, Farrow NE, Landa K, Al-Rohil RN, Selim MA, Therien AD, Jung SH, Gao J, Boczkowski D, Holl EK, Salama AKS, Bigner DD, Gromeier M, Nair SK. Multimodality analysis confers a prognostic benefit of a T-cell infiltrated tumor microenvironment and peripheral immune status in patients with melanoma. J Immunother Cancer 2022; 10:e005052. [PMID: 36175036 PMCID: PMC9528663 DOI: 10.1136/jitc-2022-005052] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND We previously reported results from a phase 1 study testing intratumoral recombinant poliovirus, lerapolturev, in 12 melanoma patients. All 12 patients received anti-PD-1 systemic therapy before lerapolturev, and 11 of these 12 patients also received anti-PD-1 after lerapolturev. In preclinical models lerapolturev induces intratumoral innate inflammation that engages antitumor T cells. In the current study, prelerapolturev and postlerapolturev tumor biopsies and blood were evaluated for biomarkers of response. METHODS The following analyses were performed on tumor tissue (n=11): (1) flow cytometric assessment of immune cell density, (2) NanoString Digital Spatial profiling of protein and the transcriptome, and (3) bulk RNA sequencing. Immune cell phenotypes and responsiveness to in vitro stimulation, including in vitro lerapolturev challenge, were measured in peripheral blood (n=12). RESULTS Three patients who received anti-PD-1 therapy within 30 days of lerapolturev have a current median progression-free survival (PFS) of 2.3 years and had higher CD8+T cell infiltrates in prelerapolturev tumor biopsies relative to that of 7 patients with median PFS of 1.6 months and lower CD8+T cell infiltrates in prelerapolturev tumor biopsies. In peripheral blood, four patients with PFS 2.3 years (including three that received anti-PD-1 therapy within 30 days before lerapolturev and had higher pretreatment tumor CD8+T cell infiltrates) had significantly higher effector memory (CD8+, CCR7-, CD45RA-) but lower CD8+PD-1+ and CD4+PD-1+ cells compared with eight patients with median PFS 1.6 months. In addition, pretreatment blood from the four patients with median PFS 2.3 years had more potent antiviral responses to in vitro lerapolturev challenge compared with eight patients with median PFS 1.6 months. CONCLUSION An inflamed pretreatment tumor microenvironment, possibly induced by prior anti-PD-1 therapy and a proficient peripheral blood pretreatment innate immune response (antiviral/interferon signaling) to lerapolturev was associated with long term PFS after intratumoral lerapolturev in a small cohort of patients. These findings imply a link between intratumoral T cell inflammation and peripheral immune function. TRIAL REGISTRATION NUMBER NCT03712358.
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Affiliation(s)
- Georgia M Beasley
- Department of Surgery, Duke University, Durham, North Carolina, USA
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | - Michael C Brown
- Department of Neurosurgery, Duke University, Durham, North Carolina, USA
| | - Norma E Farrow
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | - Karenia Landa
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | - Rami N Al-Rohil
- Department of Pathology, Duke University, Durham, North Carolina, USA
| | | | - Aaron D Therien
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | - Sin-Ho Jung
- Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina, USA
| | - Junheng Gao
- Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina, USA
| | - David Boczkowski
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | - Eda K Holl
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | - April K S Salama
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | - Darell D Bigner
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Neurosurgery, Duke University, Durham, North Carolina, USA
- Department of Pathology, Duke University, Durham, North Carolina, USA
| | - Matthias Gromeier
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Neurosurgery, Duke University, Durham, North Carolina, USA
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - Smita K Nair
- Department of Surgery, Duke University, Durham, North Carolina, USA
- Department of Neurosurgery, Duke University, Durham, North Carolina, USA
- Department of Pathology, Duke University, Durham, North Carolina, USA
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7
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Spunde K, Korotkaja K, Zajakina A. Recombinant Viral Vectors for Therapeutic Programming of Tumour Microenvironment: Advantages and Limitations. Biomedicines 2022; 10:2142. [PMID: 36140243 PMCID: PMC9495732 DOI: 10.3390/biomedicines10092142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Viral vectors have been widely investigated as tools for cancer immunotherapy. Although many preclinical studies demonstrate significant virus-mediated tumour inhibition in synergy with immune checkpoint molecules and other drugs, the clinical success of viral vector applications in cancer therapy currently is limited. A number of challenges have to be solved to translate promising vectors to clinics. One of the key elements of successful virus-based cancer immunotherapy is the understanding of the tumour immune state and the development of vectors to modify the immunosuppressive tumour microenvironment (TME). Tumour-associated immune cells, as the main component of TME, support tumour progression through multiple pathways inducing resistance to treatment and promoting cancer cell escape mechanisms. In this review, we consider DNA and RNA virus vectors delivering immunomodulatory genes (cytokines, chemokines, co-stimulatory molecules, antibodies, etc.) and discuss how these viruses break an immunosuppressive cell development and switch TME to an immune-responsive "hot" state. We highlight the advantages and limitations of virus vectors for targeted therapeutic programming of tumour immune cell populations and tumour stroma, and propose future steps to establish viral vectors as a standard, efficient, safe, and non-toxic cancer immunotherapy approach that can complement other promising treatment strategies, e.g., checkpoint inhibitors, CAR-T, and advanced chemotherapeutics.
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Affiliation(s)
| | | | - Anna Zajakina
- Cancer Gene Therapy Group, Latvian Biomedical Research and Study Centre, Ratsupites Str. 1, k.1, LV-1067 Riga, Latvia
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8
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Ding L, Chakrabarti J, Sheriff S, Li Q, Hong HNT, Sontz RA, Mendoza ZE, Schreibeis A, Helmrath MA, Zavros Y, Merchant JL. Toll-like Receptor 9 Pathway Mediates Schlafen +-MDSC Polarization During Helicobacter-induced Gastric Metaplasias. Gastroenterology 2022; 163:411-425.e4. [PMID: 35487288 PMCID: PMC9329252 DOI: 10.1053/j.gastro.2022.04.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS A subset of myeloid-derived suppressor cells (MDSCs) that express murine Schlafen4 (SLFN4) or its human ortholog SLFN12L polarize in the Helicobacter-inflamed stomach coincident with intestinal or spasmolytic polypeptide-expressing metaplasia. We propose that individuals with a more robust response to damage-activated molecular patterns and increased Toll-like receptor 9 (TLR9) expression are predisposed to the neoplastic complications of Helicobacter infection. METHODS A mouse or human Transwell co-culture system composed of dendritic cells (DCs), 2-dimensional gastric epithelial monolayers, and Helicobacter were used to dissect the cellular source of interferon-α (IFNα) in the stomach by flow cytometry. Conditioned media from the co-cultures polarized primary myeloid cells. MDSC activity was determined by T-cell suppression assays. In human subjects with intestinal metaplasia or gastric cancer, the rs5743836 TLR9T>C variant was genotyped and linked to TLR9, IFNα, and SLFN12L expression by immunohistochemistry. Nuclear factor-κB binding to the TLR9 C allele was determined by electrophoretic mobility shift assays. RESULTS Helicobacter infection induced gastric epithelial and plasmacytoid DC expression of TLR9 and IFNα. Co-culturing primary mouse or human cells with DCs and Helicobacter induced TLR9, IFNα secretion, and SLFN+-MDSC polarization. Neutralizing IFNα in vivo mitigated Helicobacter-induced spasmolytic polypeptide-expressing metaplasia. The TLR9 minor C allele creates a nuclear factor-κB binding site associated with higher levels of TLR9, IFNα, and SLFN12L in Helicobacter-infected stomachs that correlated with a greater incidence of metaplasias and cancer. CONCLUSIONS TLR9 plays an essential role in the production of IFNα and polarization of SLFN+ MDSCs on Helicobacter infection. Subjects carrying the rs5743836 TLR9 minor C allele are predisposed to neoplastic complications if chronically infected.
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Affiliation(s)
- Lin Ding
- Dept. of Medicine-Gastroenterology & Hepatology, University of Arizona, Tucson
| | | | - Sulaiman Sheriff
- Dept. of Medicine-Gastroenterology & Hepatology, University of Arizona, Tucson
| | - Qian Li
- Dept. of Gastroenterology, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Hahn Nguyen Thi Hong
- Dinh Tien Hoang Institute of Medicine, Vietnam Union of Science and Technology Association, Institute of Biotechnology, Hanoi, Vietnam
| | - Ricky A Sontz
- Dept. of Medicine-Gastroenterology & Hepatology, University of Arizona, Tucson
| | - Zoe E Mendoza
- Dept. of Medicine-Gastroenterology & Hepatology, University of Arizona, Tucson
| | - Amanda Schreibeis
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Michael A. Helmrath
- Division of Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Yana Zavros
- Dept. of Cellular & Molecular Medicine, University of Arizona, Tucson
| | - Juanita L Merchant
- Department of Medicine-Gastroenterology & Hepatology, University of Arizona, Tucson, Arizona.
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9
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Microbial-Derived Toll-like Receptor Agonism in Cancer Treatment and Progression. Cancers (Basel) 2022; 14:cancers14122923. [PMID: 35740589 PMCID: PMC9221178 DOI: 10.3390/cancers14122923] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/02/2022] [Accepted: 06/13/2022] [Indexed: 01/05/2023] Open
Abstract
Simple Summary Toll like receptors (TLRs) are a group of transmembrane receptors belonging to the class of pattern recognition receptors (PRR), which are involved in recognition of pathogen associated molecular patterns (PAMPs), inducing immune response. During the past decade, a number of preclinical and clinical breakthroughs in the field of TLR agonists has immerged in cancer research and some of these agents have performed exceptionally well in clinical trials. Based on evidence from scientific studies, we draw attention to several microbial based TLR agonists and discuss their relevance in various cancer and explore various microbial based TLR agonists for developing effective immunotherapeutic strategies against cancer. Abstract Toll-like receptors (TLRs) are typical transmembrane proteins, which are essential pattern recognition receptors in mediating the effects of innate immunity. TLRs recognize structurally conserved molecules derived from microbes and damage-associated molecular pattern molecules that play an important role in inflammation. Since the first discovery of the Toll receptor by the team of J. Hoffmann in 1996, in Drosophila melanogaster, numerous TLRs have been identified across a wide range of invertebrate and vertebrate species. TLR stimulation leads to NF-κB activation and the subsequent production of pro-inflammatory cytokines and chemokines, growth factors and anti-apoptotic proteins. The expression of TLRs has also been observed in many tumors, and their stimulation results in tumor progression or regression, depending on the TLR and tumor type. The anti-tumoral effects can result from the activation of anti-tumoral immune responses and/or the direct induction of tumor cell death. The pro-tumoral effects may be due to inducing tumor cell survival and proliferation or by acting on suppressive or inflammatory immune cells in the tumor microenvironment. The aim of this review is to draw attention to the effects of TLR stimulation in cancer, the activation of various TLRs by microbes in different types of tumors, and, finally, the role of TLRs in anti-cancer immunity and tumor rejection.
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Chiaro J, Kasanen HH, Whalley T, Capasso C, Grönholm M, Feola S, Peltonen K, Hamdan F, Hernberg M, Mäkelä S, Karhapää H, Brown PE, Martins B, Fusciello M, Ylösmäki EO, Greco D, Kreutzman AS, Mustjoki S, Szomolay B, Cerullo V. Viral Molecular Mimicry Influences the Antitumor Immune Response in Murine and Human Melanoma. Cancer Immunol Res 2021; 9:981-993. [PMID: 34103348 PMCID: PMC8974425 DOI: 10.1158/2326-6066.cir-20-0814] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/29/2021] [Accepted: 06/03/2021] [Indexed: 01/07/2023]
Abstract
Molecular mimicry is one of the leading mechanisms by which infectious agents can induce autoimmunity. Whether a similar mechanism triggers an antitumor immune response is unexplored, and the role of antiviral T cells infiltrating the tumor has remained anecdotal. To address these questions, we first developed a bioinformatic tool to identify tumor peptides with high similarity to viral epitopes. Using peptides identified by this tool, we demonstrated that, in mice, preexisting immunity toward specific viral epitopes enhanced the efficacy of cancer immunotherapy via molecular mimicry in different settings. To understand whether this mechanism could partly explain immunotherapy responsiveness in humans, we analyzed a cohort of patients with melanoma undergoing anti-PD1 treatment who had a high IgG titer for cytomegalovirus (CMV). In this cohort of patients, we showed that high levels of CMV-specific antibodies were associated with prolonged progression-free survival and found that, in some cases, peripheral blood mononuclear cells (PBMC) could cross-react with both melanoma and CMV homologous peptides. Finally, T-cell receptor sequencing revealed expansion of the same CD8+ T-cell clones when PBMCs were expanded with tumor or homologous viral peptides. In conclusion, we have demonstrated that preexisting immunity and molecular mimicry could influence the response to immunotherapies. In addition, we have developed a free online tool that can identify tumor antigens and neoantigens highly similar to pathogen antigens to exploit molecular mimicry and cross-reactive T cells in cancer vaccine development.
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Affiliation(s)
- Jacopo Chiaro
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Henna H.E. Kasanen
- TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,Hematology Research Unit Helsinki, Department of Hematology, University of Helsinki and Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland.,Department of Clinical Chemistry, University of Helsinki, Helsinki, Finland
| | - Thomas Whalley
- Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, United Kingdom.,Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Cristian Capasso
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Mikaela Grönholm
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,iCAN Digital Precision Cancer Medicine Flagship, University of Helsinki, Helsinki, Finland
| | - Sara Feola
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Karita Peltonen
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Firas Hamdan
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Micaela Hernberg
- TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,Department of Oncology, Comprehensive Cancer Center, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Siru Mäkelä
- TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,Department of Oncology, Comprehensive Cancer Center, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Hanna Karhapää
- TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,Department of Oncology, Comprehensive Cancer Center, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Paul E. Brown
- Warwick Systems Biology Centre, University of Warwick, Coventry, United Kingdom
| | - Beatriz Martins
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Manlio Fusciello
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Erkko O. Ylösmäki
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland
| | - Dario Greco
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anna S. Kreutzman
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,Hematology Research Unit Helsinki, Department of Hematology, University of Helsinki and Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland.,Department of Clinical Chemistry, University of Helsinki, Helsinki, Finland
| | - Satu Mustjoki
- TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,Hematology Research Unit Helsinki, Department of Hematology, University of Helsinki and Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland.,Department of Clinical Chemistry, University of Helsinki, Helsinki, Finland.,Warwick Systems Biology Centre, University of Warwick, Coventry, United Kingdom.,HiLIFE Helsinki Institute of Life Science, Helsinki, Finland
| | - Barbara Szomolay
- Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, United Kingdom.,Cardiff University School of Medicine, Cardiff, United Kingdom
| | - Vincenzo Cerullo
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,TRIMM, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,iCAN Digital Precision Cancer Medicine Flagship, University of Helsinki, Helsinki, Finland.,HiLIFE Helsinki Institute of Life Science, Helsinki, Finland.,Department of Molecular Medicine and Medical Biotechnology and CEINGE, Naples University Federico II, Naples, Italy.,Corresponding Author: Vincenzo Cerullo, Laboratory of ImmunoViroTherapy, Drug Research Program, University of Helsinki, PO Box 56, Helsinki 00790, Finland. Phone: 358 29 4159328; E-mail:
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11
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Farrera-Sal M, Moya-Borrego L, Bazan-Peregrino M, Alemany R. Evolving Status of Clinical Immunotherapy with Oncolytic Adenovirus. Clin Cancer Res 2021; 27:2979-2988. [PMID: 33526422 DOI: 10.1158/1078-0432.ccr-20-1565] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/02/2020] [Accepted: 01/15/2021] [Indexed: 11/16/2022]
Abstract
Cancer immunotherapy targeting immune checkpoint inhibitors shows efficacy in several human cancers, but "cold tumors" that lack immune cells are typically unresponsive. Among the potential therapeutic approaches that could "heat" or promote lymphocyte infiltration of cold tumors, oncolytic viruses have attracted interest for their lytic and immunogenic mechanisms of action. In this article, we review the use of oncolytic adenoviruses in cancer immunotherapy, with a particular focus on preclinical and clinical data of oncolytic adenovirus-triggered immune responses against tumor antigens. We also discuss parameters to consider in clinical trial design and the combination of oncolytic adenoviruses with conventional treatments or other immunotherapies.
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Affiliation(s)
- Martí Farrera-Sal
- ProCure Program, IDIBELL-Institut Català d'Oncologia, Barcelona, Spain.,VCN Biosciences SL, Barcelona, Spain
| | | | | | - Ramon Alemany
- ProCure Program, IDIBELL-Institut Català d'Oncologia, Barcelona, Spain.
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12
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Beasley GM, Nair SK, Farrow NE, Landa K, Selim MA, Wiggs CA, Jung SH, Bigner DD, True Kelly A, Gromeier M, Salama AK. Phase I trial of intratumoral PVSRIPO in patients with unresectable, treatment-refractory melanoma. J Immunother Cancer 2021; 9:jitc-2020-002203. [PMID: 33875611 PMCID: PMC8057552 DOI: 10.1136/jitc-2020-002203] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND While programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1) antagonists have improved the prognosis for many patients with melanoma, around 60% fail therapy. PVSRIPO is a non-neurovirulent rhinovirus:poliovirus chimera that facilitates an antitumor immune response following cell entry via the poliovirus receptor CD155, which is expressed on tumor and antigen-presenting cells. Preclinical studies show that oncolytic virus plus anti-PD-1 therapy leads to a greater antitumor response than either agent alone, warranting clinical investigation. METHODS An open-label phase I trial of intratumoral PVSRIPO in patients with unresectable melanoma (American Joint Committee on Cancer V.7 stage IIIB, IIIC, or IV) was performed. Eligible patients had disease progression on anti-PD-1 and V-raf murine sarcoma viral oncogene homolog B (BRAF)/mitogen activated protein kinase kinase (MEK) inhibitors (if BRAF mutant). The primary objective was to characterize the safety and tolerability of PVSRIPO. Twelve patients in four cohorts received a total of 1, 2 or 3 injections of PVSRIPO monotherapy, with 21 days between injections. RESULTS PVSRIPO injections were well tolerated with no serious adverse events (SAEs) or dose-limiting toxicities (DLTs) reported. All adverse events (AEs) were grade (G) 1 or G2 (G1 pruritus most common at 58%); all but two PVSRIPO-treatment related AEs were localized to the injected or adjacent lesions (n=1 G1 hot flash, n=1 G1 fatigue). Four out of 12 patients (33%) achieved an objective response per immune-related response criteria (two observations, 4 weeks apart), including 4/6 (67%) who received three injections. In the four patients with in-transit disease, a pathological complete response (pCR) was observed in two (50%) patients. Following study completion, 11/12 patients (92%) reinitiated immune checkpoint inhibitor-based therapy, and 6/12 patients (50%) remained without progression at a median follow-up time of 18 months. CONCLUSION Intratumoral PVSRIPO was well tolerated. Despite the limited number of PVSRIPO treatments relative to the overall lesion burden (67% patients>5 lesions), intratumoral PVSRIPO showed promising antitumor activity, with pCR in injected as well as non-injected lesions in select patients. TRIAL REGISTRATION NUMBER NCT03712358.
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Affiliation(s)
- Georgia M Beasley
- Department of Surgery, Duke University, Durham, North Carolina, USA .,Duke Cancer Institute, Duke University, Durham, NC, USA
| | - Smita K Nair
- Department of Surgery, Duke University, Durham, North Carolina, USA.,Duke Cancer Institute, Duke University, Durham, NC, USA.,Department of Pathology, Duke University, Durham, North Carolina, USA.,Department of Neurosurgery, Duke University, Durham, NC, USA
| | - Norma E Farrow
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | - Karenia Landa
- Department of Surgery, Duke University, Durham, North Carolina, USA
| | | | | | - Sin-Ho Jung
- Duke Cancer Institute, Duke University, Durham, NC, USA.,Department of Biostatistics and Bioinformatics, Duke University, Durham, NC, USA
| | - Darell D Bigner
- Duke Cancer Institute, Duke University, Durham, NC, USA.,Department of Pathology, Duke University, Durham, North Carolina, USA.,Department of Neurosurgery, Duke University, Durham, NC, USA
| | | | - Matthias Gromeier
- Duke Cancer Institute, Duke University, Durham, NC, USA.,Department of Neurosurgery, Duke University, Durham, NC, USA.,Department of Molecular Genetics and Biology, Duke University, Durham, NC, USA.,Department of Medicine, Duke Univeristy, Durham, NC, USA
| | - April Ks Salama
- Duke Cancer Institute, Duke University, Durham, NC, USA.,Department of Medicine, Duke Univeristy, Durham, NC, USA
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13
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Role of Myeloid Cells in Oncolytic Reovirus-Based Cancer Therapy. Viruses 2021; 13:v13040654. [PMID: 33920168 PMCID: PMC8070345 DOI: 10.3390/v13040654] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 12/11/2022] Open
Abstract
Oncolytic reovirus preferentially targets and kills cancer cells via the process of oncolysis, and additionally drives clinically favorable antitumor T cell responses that form protective immunological memory against cancer relapse. This two-prong attack by reovirus on cancers constitutes the foundation of its use as an anticancer oncolytic agent. Unfortunately, the efficacy of these reovirus-driven antitumor effects is influenced by the highly suppressive tumor microenvironment (TME). In particular, the myeloid cell populations (e.g., myeloid-derived suppressive cells and tumor-associated macrophages) of highly immunosuppressive capacities within the TME not only affect oncolysis but also actively impair the functioning of reovirus-driven antitumor T cell immunity. Thus, myeloid cells within the TME play a critical role during the virotherapy, which, if properly understood, can identify novel therapeutic combination strategies potentiating the therapeutic efficacy of reovirus-based cancer therapy.
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14
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Zhang B, Wang X, Cheng P. Remodeling of Tumor Immune Microenvironment by Oncolytic Viruses. Front Oncol 2021; 10:561372. [PMID: 33680911 PMCID: PMC7934618 DOI: 10.3389/fonc.2020.561372] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 12/30/2020] [Indexed: 02/05/2023] Open
Abstract
Oncolytic viruses (OVs) are potential antitumor agents with unique therapeutic mechanisms. They possess the ability of direct oncolysis and the induction of antitumor immunity. OV can be genetically engineered to potentiate antitumor efficacy by remodeling the tumor immune microenvironment. The present mini review mainly describes the effect of OVs on remodeling of the tumor immune microenvironment and explores the mechanism of regulation of the host immune system and the promotion of the immune cells to destroy carcinoma cells by OVs. Furthermore, this article focuses on the utilization of OVs as vectors for the delivery of immunomodulatory cytokines or antibodies.
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Affiliation(s)
- Bin Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xilei Wang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ping Cheng
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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15
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Zhou H, Jiang M, Yuan H, Ni W, Tai G. Dual roles of myeloid-derived suppressor cells induced by Toll-like receptor signaling in cancer. Oncol Lett 2020; 21:149. [PMID: 33552267 PMCID: PMC7798029 DOI: 10.3892/ol.2020.12410] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 12/03/2020] [Indexed: 12/16/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are one of the major components of the tumor microenvironment (TME), and are the main mediators of tumor-induced immunosuppression. Recent studies have reported that the survival, differentiation and immunosuppressive activity of MDSCs are affected by the Toll-like receptor (TLR) signaling pathway. However, the regulatory effect of TLR signaling on MDSCs remains controversial. TLR-induced MDSC can acquire different immunosuppressive activities to influence the immune response that can be either beneficial or detrimental to cancer immunotherapy. The present review summarizes the effects of TLR signals on the number, phenotype and inhibitory activity of MDSCs, and their role in cancer immunotherapy, which cannot be ignored if effective cancer immunotherapies are to be developed for the immunosuppression of the TME.
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Affiliation(s)
- Hongyue Zhou
- Department of Immunology, College of Basic Medical Science, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Mengyu Jiang
- Department of Immunology, College of Basic Medical Science, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Hongyan Yuan
- Department of Immunology, College of Basic Medical Science, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Weihua Ni
- Department of Immunology, College of Basic Medical Science, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Guixiang Tai
- Department of Immunology, College of Basic Medical Science, Jilin University, Changchun, Jilin 130021, P.R. China
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16
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Keshavarz A, Pourbagheri-Sigaroodi A, Zafari P, Bagheri N, Ghaffari SH, Bashash D. Toll-like receptors (TLRs) in cancer; with an extensive focus on TLR agonists and antagonists. IUBMB Life 2020; 73:10-25. [PMID: 33217774 DOI: 10.1002/iub.2412] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/01/2020] [Accepted: 11/01/2020] [Indexed: 12/19/2022]
Abstract
At the forefront of the battle against pathogens or any endogenously released molecules, toll-like receptors (TLRs) play an important role as the most noble pattern recognition receptors. The ability of these receptors in distinguishing "self" and "non-self" antigens is a cornerstone in the innate immunity system; however, misregulation links inflammatory responses to the development of human cancers. It has been known for some time that aberrant expression and regulation of TLRs not only endows cancer cells an opportunity to escape from the immune system but also supports them through enhancing proliferation and angiogenesis. Over the past decades, cancer research studies have witnessed a number of preclinical and clinical breakthroughs in the field of TLR modulators and some of the agents have exceptionally performed well in advanced clinical trials. In the present review, we have provided a comprehensive review of different TLR agonists and antagonists and discuss their limitations, toxicities, and challenges to outline their future incorporation in cancer treatment strategies.
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Affiliation(s)
- Ali Keshavarz
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atieh Pourbagheri-Sigaroodi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parisa Zafari
- Department of Immunology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Nader Bagheri
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Seyed H Ghaffari
- Hematology, Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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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: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [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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18
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Hu PY, Fan XM, Zhang YN, Wang SB, Wan WJ, Pan HY, Mou XZ. The limiting factors of oncolytic virus immunotherapy and the approaches to overcome them. Appl Microbiol Biotechnol 2020; 104:8231-8242. [PMID: 32816087 DOI: 10.1007/s00253-020-10802-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 06/22/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023]
Abstract
Oncolytic virus (OV) immunotherapy is characterized by viruses which specifically target cancer cells and cause their cytolysis. They provide a unique and promising new tool for the eradication of cancer as they interact with and affect the tumor microenvironment (TME), vasculature, and immune system. Advancements of genetic engineering have allowed for these viruses to be armed in such a way to have enhanced targeting, strong immunomodulation properties, and an ability to modify the TME. However, there are still major limitations in their use, mostly due to difficulties in delivering the viral particles to the tumors and in ensuring that the immunomodulatory properties are able to stimulate the host immune response to mount a complete response. Using novel delivery systems and using OVs as a complementary therapy in a combinatorial treatment have shown some significant successes. In this review, we discuss the major issues and difficulties in using OVs as anti-tumor agents and some of the strategies put in place so far to overcome these limitations. KEY POINTS: • Oncolytic viruses (OVs) infect cancer cells and cause their cytolysis. • The major limitations in using OVs as anti-tumor therapy were discussed. • The potential strategies to overcome these limitations were summarized.
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Affiliation(s)
- Pei-Yang Hu
- Department of Traumatology, Tiantai People's Hospital of Zhejiang Province (Tiantai Branch of Zhejiang People's Hospital), Taizhou, 317200, China
| | - Xiao-Ming Fan
- Department of Ultrasound, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China
| | - You-Ni Zhang
- Department of Traumatology, Tiantai People's Hospital of Zhejiang Province (Tiantai Branch of Zhejiang People's Hospital), Taizhou, 317200, China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China
| | - Shi-Bing Wang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China
| | - Wei-Jie Wan
- Shandong Xiandai University, Jinan, 250104, China
| | - Hong-Ying Pan
- Department of Infectious Diseases, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China.
| | - Xiao-Zhou Mou
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China. .,Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, 310014, China.
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19
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Burchett R, Walsh S, Wan Y, Bramson JL. A rational relationship: Oncolytic virus vaccines as functional partners for adoptive T cell therapy. Cytokine Growth Factor Rev 2020; 56:149-159. [PMID: 32665126 DOI: 10.1016/j.cytogfr.2020.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 07/02/2020] [Indexed: 01/02/2023]
Abstract
Tumours employ a variety of immune-evasion and suppression mechanisms to impair development of functional tumor-specific T cells and subvert T cell-mediated immunity in the tumour microenvironment. Adoptive T cell therapy (ACT) aims to overcome these barriers and overwhelm tumor defenses with a bolus of T cells that were selectively expanded ex vivo. Although this strategy has been effective in liquid tumors and melanomas, many tumors appear to be resistant to ACT. Several factors are thought to play into this resistance, including poor engraftment and persistence of transferred cells, tumour cell heterogeneity and antigen loss, poor immune cell recruitment and infiltration into the tumour, and susceptibility to local immunosuppression in the tumor microenvironment. Oncolytic viruses (OV) have been identified as powerful stimulators of the anti-tumour immune response. As such, OVs are inherently well-positioned to act in synergy with ACT to bolster the anti-tumour T cell response. Further, OV vaccines, wherein tumour-associated antigens are encoded into the viral backbone, have proven to be remarkable in boosting antigen-specific T cell response. Pre-clinical studies have revealed remarkable therapeutic outcomes when OV vaccines are paired with ACT. In this scenario, OV vaccines are thought to function in a "push and pull" manner, where push refers to expanding T cells in the periphery and pull refers to recruiting those cells into the tumour that has been rendered amenable to T cell attack by the actions of the OV. In this review, we discuss barriers that limit eradication of tumors by T cells, highlight attributes of OVs that break down these barriers and present strategies for rational combinations of ACT with OV vaccines.
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Affiliation(s)
- Rebecca Burchett
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Scott Walsh
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Yonghong Wan
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Jonathan L Bramson
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada.
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20
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Hemminki O, Dos Santos JM, Hemminki A. Oncolytic viruses for cancer immunotherapy. J Hematol Oncol 2020; 13:84. [PMID: 32600470 PMCID: PMC7325106 DOI: 10.1186/s13045-020-00922-1] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/17/2020] [Indexed: 12/24/2022] Open
Abstract
In this review, we discuss the use of oncolytic viruses in cancer immunotherapy treatments in general, with a particular focus on adenoviruses. These serve as a model to elucidate how versatile viruses are, and how they can be used to complement other cancer therapies to gain optimal patient benefits. Historical reports from over a hundred years suggest treatment efficacy and safety with adenovirus and other oncolytic viruses. This is confirmed in more contemporary patient series and multiple clinical trials. Yet, while the first viruses have already been granted approval from several regulatory authorities, room for improvement remains. As good safety and tolerability have been seen, the oncolytic virus field has now moved on to increase efficacy in a wide array of approaches. Adding different immunomodulatory transgenes to the viruses is one strategy gaining momentum. Immunostimulatory molecules can thus be produced at the tumor with reduced systemic side effects. On the other hand, preclinical work suggests additive or synergistic effects with conventional treatments such as radiotherapy and chemotherapy. In addition, the newly introduced checkpoint inhibitors and other immunomodulatory drugs could make perfect companions to oncolytic viruses. Especially tumors that seem not to be recognized by the immune system can be made immunogenic by oncolytic viruses. Logically, the combination with checkpoint inhibitors is being evaluated in ongoing trials. Another promising avenue is modulating the tumor microenvironment with oncolytic viruses to allow T cell therapies to work in solid tumors. Oncolytic viruses could be the next remarkable wave in cancer immunotherapy.
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Affiliation(s)
- Otto Hemminki
- Division of Urologic Oncology, Department of Surgical Oncology, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada. .,Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland. .,Department of Urology, Helsinki University Hospital, Helsinki, Finland.
| | - João Manuel Dos Santos
- Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland.,TILT Biotherapeutics Ltd, Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Translational Immunology Research Program, University of Helsinki, Helsinki, Finland. .,TILT Biotherapeutics Ltd, Helsinki, Finland. .,Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland.
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21
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Trus I, Berube N, Jiang P, Rak J, Gerdts V, Karniychuk U. Zika Virus with Increased CpG Dinucleotide Frequencies Shows Oncolytic Activity in Glioblastoma Stem Cells. Viruses 2020; 12:v12050579. [PMID: 32466170 PMCID: PMC7290362 DOI: 10.3390/v12050579] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 12/31/2022] Open
Abstract
We studied whether cytosine phosphate–guanine (CpG) recoding in a viral genome may provide oncolytic candidates with reduced infection kinetics in nonmalignant brain cells, but with high virulence in glioblastoma stem cells (GSCs). As a model, we used well-characterized CpG-recoded Zika virus vaccine candidates that previously showed genetic stability and safety in animal models. In vitro, one of the CpG-recoded Zika virus variants had reduced infection kinetics in nonmalignant brain cells but high infectivity and oncolytic activity in GSCs as represented by reduced cell proliferation. The recoded virus also efficiently replicated in GSC-derived tumors in ovo with a significant reduction of tumor growth. We also showed that some GSCs may be resistant to Zika virus oncolytic activity, emphasizing the need for personalized oncolytic therapy or a strategy to overcome resistance in GSCs. Collectively, we demonstrated the potential of the CpG recoding approach for oncolytic virus development that encourages further research towards a better understanding of host–tumor–CpG-recoded virus interactions.
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Affiliation(s)
- Ivan Trus
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (I.T.); (N.B.); (V.G.)
| | - Nathalie Berube
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (I.T.); (N.B.); (V.G.)
| | - Peng Jiang
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854-8082, USA;
| | - Janusz Rak
- The Research Institute of the McGill University Health Centre, Montreal, QC H3H 2R9, Canada;
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (I.T.); (N.B.); (V.G.)
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
| | - Uladzimir Karniychuk
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (I.T.); (N.B.); (V.G.)
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
- School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada
- Correspondence:
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22
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Li L, Liu S, Han D, Tang B, Ma J. Delivery and Biosafety of Oncolytic Virotherapy. Front Oncol 2020; 10:475. [PMID: 32373515 PMCID: PMC7176816 DOI: 10.3389/fonc.2020.00475] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/16/2020] [Indexed: 12/19/2022] Open
Abstract
In recent years, oncolytic virotherapy has emerged as a promising anticancer therapy. Oncolytic viruses destroy cancer cells, without damaging normal tissues, through virus self-replication and antitumor immunity responses, showing great potential for cancer treatment. However, the clinical guidelines for administering oncolytic virotherapy remain unclear. Delivery routes for oncolytic virotherapy to patients vary in existing studies, depending on the tumor sites and the objective of studies. Moreover, the biosafety of oncolytic virotherapy, including mainly uncontrolled adverse events and long-term complications, remains a serious concern that needs to be accurately measured. This review provides a comprehensive and detailed overview of the delivery and biosafety of oncolytic virotherapy.
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Affiliation(s)
- Lizhi Li
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Shixin Liu
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Duoduo Han
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Bin Tang
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Jian Ma
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, National Health Commission Key Laboratory of Carcinogenesis, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Changsha, China
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23
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Garofalo M, Grazioso G, Cavalli A, Sgrignani J. How Computational Chemistry and Drug Delivery Techniques Can Support the Development of New Anticancer Drugs. Molecules 2020; 25:E1756. [PMID: 32290224 PMCID: PMC7180704 DOI: 10.3390/molecules25071756] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 01/17/2023] Open
Abstract
The early and late development of new anticancer drugs, small molecules or peptides can be slowed down by some issues such as poor selectivity for the target or poor ADME properties. Computer-aided drug design (CADD) and target drug delivery (TDD) techniques, although apparently far from each other, are two research fields that can give a significant contribution to overcome these problems. Their combination may provide mechanistic understanding resulting in a synergy that makes possible the rational design of novel anticancer based therapies. Herein, we aim to discuss selected applications, some also from our research experience, in the fields of anticancer small organic drugs and peptides.
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Affiliation(s)
- Mariangela Garofalo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Giovanni Grazioso
- Department of Pharmaceutical Sciences, University of Milano, 20133 Milan, Italy
| | - Andrea Cavalli
- Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
- Institute for Research in Biomedicine (IRB), Università della Svizzera Italiana (USI), 6500 Bellinzona, Switzerland
| | - Jacopo Sgrignani
- Institute for Research in Biomedicine (IRB), Università della Svizzera Italiana (USI), 6500 Bellinzona, Switzerland
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24
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Artificially cloaked viral nanovaccine for cancer immunotherapy. Nat Commun 2019; 10:5747. [PMID: 31848338 PMCID: PMC6917704 DOI: 10.1038/s41467-019-13744-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/14/2019] [Indexed: 12/19/2022] Open
Abstract
Virus-based cancer vaccines are nowadays considered an interesting approach in the field of cancer immunotherapy, despite the observation that the majority of the immune responses they elicit are against the virus and not against the tumor. In contrast, targeting tumor associated antigens is effective, however the identification of these antigens remains challenging. Here, we describe ExtraCRAd, a multi-vaccination strategy focused on an oncolytic virus artificially wrapped with tumor cancer membranes carrying tumor antigens. We demonstrate that ExtraCRAd displays increased infectivity and oncolytic effect in vitro and in vivo. We show that this nanoparticle platform controls the growth of aggressive melanoma and lung tumors in vivo both in preventive and therapeutic setting, creating a highly specific anti-cancer immune response. In conclusion, ExtraCRAd might serve as the next generation of personalized cancer vaccines with enhanced features over standard vaccination regimens, representing an alternative way to target cancer. Cancer therapy using oncolytic virus has shown pre-clinical and clinical efficacy. Here, the authors report ExtraCRAd, an oncolytic virus cloaked with tumour cell membrane and report its therapeutic effects in vitro and in vivo in multiple mouse tumour models.
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25
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Shaw AR, Suzuki M. Immunology of Adenoviral Vectors in Cancer Therapy. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 15:418-429. [PMID: 31890734 PMCID: PMC6909129 DOI: 10.1016/j.omtm.2019.11.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Adenoviruses are a commonly utilized virus for gene therapy platforms worldwide. Since adenovirus components are characterized as highly immunogenic, their immunogenicity inhibits the widespread use of adenoviral vectors to treat genetic disorders. However, stimulation of the immune response can be exploited for cancer immunotherapy platforms, and thus adenoviral vectors are used for therapeutic gene transfer, vaccines, and oncolytic agents in the cancer gene therapy field. It is now accepted that the generation of anti-tumor immune responses induced by oncolytic adenovirus treatments is critical for their anti-tumor efficacy. As such, in cancer immunotherapy with adenoviral vectors, a balance must be struck between induction of anti-adenoviral and anti-tumor immune responses. The recent trend in adenoviral-based cancer gene therapy is the development of adenoviral vectors to enhance immune responses and redirect them toward tumors. This review focuses on anti-adenoviral immunity and how adenovirotherapies skew the immune response toward an anti-tumor response.
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Affiliation(s)
- Amanda Rosewell Shaw
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA.,Baylor College of Medicine, Center for Cell Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX, USA
| | - Masataka Suzuki
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA.,Baylor College of Medicine, Center for Cell Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Houston, TX, USA
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26
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Lopes A, Feola S, Ligot S, Fusciello M, Vandermeulen G, Préat V, Cerullo V. Oncolytic adenovirus drives specific immune response generated by a poly-epitope pDNA vaccine encoding melanoma neoantigens into the tumor site. J Immunother Cancer 2019; 7:174. [PMID: 31291991 PMCID: PMC6621971 DOI: 10.1186/s40425-019-0644-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 06/19/2019] [Indexed: 02/08/2023] Open
Abstract
Background DNA vaccines against cancer held great promises due to the generation of a specific and long-lasting immune response. However, when used as a single therapy, they are not able to drive the generated immune response into the tumor, because of the immunosuppressive microenvironment, thus limiting their use in humans. To enhance DNA vaccine efficacy, we combined a new poly-epitope DNA vaccine encoding melanoma tumor associated antigens and B16F1-specific neoantigens with an oncolytic virus administered intratumorally. Methods Genomic analysis were performed to find specific mutations in B16F1 melanoma cells. The antigen gene sequences were designed according to these mutations prior to the insertion in the plasmid vector. Mice were injected with B16F1 tumor cells (n = 7–9) and therapeutically vaccinated 2, 9 and 16 days after the tumor injection. The virus was administered intratumorally at day 10, 12 and 14. Immune cell infiltration analysis and cytokine production were performed by flow cytometry, PCR and ELISPOT in the tumor site and in the spleen of animals, 17 days after the tumor injection. Results The combination of DNA vaccine and oncolytic virus significantly increased the immune activity into the tumor. In particular, the local intratumoral viral therapy increased the NK infiltration, thus increasing the production of different cytokines, chemokines and enzymes involved in the adaptive immune system recruitment and cytotoxic activity. On the other side, the DNA vaccine generated antigen-specific T cells in the spleen, which migrated into the tumor when recalled by the local viral therapy. The complementarity between these strategies explains the dramatic tumor regression observed only in the combination group compared to all the other control groups. Conclusions This study explores the immunological mechanism of the combination between an oncolytic adenovirus and a DNA vaccine against melanoma. It demonstrates that the use of a rational combination therapy involving DNA vaccination could overcome its poor immunogenicity. In this way, it will be possible to exploit the great potential of DNA vaccination, thus allowing a larger use in the clinic. Electronic supplementary material The online version of this article (10.1186/s40425-019-0644-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alessandra Lopes
- Université Catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, B-1200, Brussels, Belgium
| | - Sara Feola
- University of Helsinki, Biocenter 2, Viikinkari 5E, Helsinki, Finland
| | - Sophie Ligot
- Université Catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, B-1200, Brussels, Belgium
| | - Manlio Fusciello
- University of Helsinki, Biocenter 2, Viikinkari 5E, Helsinki, Finland
| | - Gaëlle Vandermeulen
- Université Catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, B-1200, Brussels, Belgium
| | - Véronique Préat
- Université Catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, B-1200, Brussels, Belgium.
| | - Vincenzo Cerullo
- University of Helsinki, Biocenter 2, Viikinkari 5E, Helsinki, Finland.
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27
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Jennings VA, Scott GB, Rose AMS, Scott KJ, Migneco G, Keller B, Reilly K, Donnelly O, Peach H, Dewar D, Harrington KJ, Pandha H, Samson A, Vile RG, Melcher AA, Errington-Mais F. Potentiating Oncolytic Virus-Induced Immune-Mediated Tumor Cell Killing Using Histone Deacetylase Inhibition. Mol Ther 2019; 27:1139-1152. [PMID: 31053413 PMCID: PMC6554638 DOI: 10.1016/j.ymthe.2019.04.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/08/2019] [Accepted: 04/08/2019] [Indexed: 02/09/2023] Open
Abstract
A clinical oncolytic herpes simplex virus (HSV) encoding granulocyte-macrophage colony-stimulating factor (GM-CSF), talimogene laherparepvec, causes regression of injected and non-injected melanoma lesions in patients and is now licensed for clinical use in advanced melanoma. To date, limited data are available regarding the mechanisms of human anti-tumor immune priming, an improved understanding of which could inform the development of future combination strategies with improved efficacy. This study addressed direct oncolysis and innate and adaptive human immune-mediated effects of a closely related HSV encoding GM-CSF (HSVGM-CSF) alone and in combination with histone deacetylase inhibition. We found that HSVGM-CSF supported activation of anti-melanoma immunity via monocyte-mediated type I interferon production, which activates NK cells, and viral maturation of immature dendritic cells (iDCs) into potent antigen-presenting cells for cytotoxic T lymphocyte (CTL) priming. Addition of the histone deacetylase inhibitor valproic acid (VPA) to HSVGM-CSF treatment of tumor cells increased viral replication, viral GM-CSF production, and oncolysis and augmented the development of anti-tumor immunity. Mechanistically, VPA increased expression of activating ligands for NK cell recognition and induced expression of tumor-associated antigens, supporting innate NK cell killing and CTL priming. These data support the clinical combination of talimogene laherparepvec with histone deacetylase inhibition to enhance oncolysis and anti-tumor immunity.
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Affiliation(s)
- Victoria A Jennings
- The Institute of Cancer Research, Division of Radiotherapy and Imaging, Chester Beatty Laboratories, London SW3 6JB, UK; Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Gina B Scott
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Ailsa M S Rose
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Karen J Scott
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Gemma Migneco
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Brian Keller
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Katrina Reilly
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Oliver Donnelly
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | - Howard Peach
- St James's University Hospital, Leeds LS9 7TF, UK
| | - Donald Dewar
- St James's University Hospital, Leeds LS9 7TF, UK
| | - Kevin J Harrington
- The Institute of Cancer Research, Division of Radiotherapy and Imaging, Chester Beatty Laboratories, London SW3 6JB, UK
| | - Hardev Pandha
- Leggett Building, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7WG, UK
| | - Adel Samson
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
| | | | - Alan A Melcher
- The Institute of Cancer Research, Division of Radiotherapy and Imaging, Chester Beatty Laboratories, London SW3 6JB, UK.
| | - Fiona Errington-Mais
- Section of Infection and Immunity, Leeds Institute of Medical Research, University of Leeds, Beckett Street, Leeds LS9 7TF, UK
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28
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Abstract
Toll-like receptors (TLRs) are associated with tumor growth and immunosuppression, as well as apoptosis and immune system activation. TLRs can activate apoptosis and innate and adaptive immunity pathways, which can be pharmacologically targeted for the development of anticancer oncotherapies. Several studies and clinical trials indicate that TLR agonists are promising adjuvants or elements of novel therapies, particularly when used in conjunction with chemotherapy or radiotherapy. An increasing number of studies suggest that the activation of TLRs in various cancer types is related to oncotherapy; however, before this finding can be applied to clinical practice, additional studies are required. Research suggests that TLR agonists may have potential applications in cancer therapy; nevertheless, because TLR signaling can also promote tumorigenesis, a critical and comprehensive evaluation of TLR action is warranted. This review focuses on recent studies that have assessed the strengths and weaknesses of utilizing TLR agonists as potential anticancer agents.
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Affiliation(s)
- Caiqi Liu
- Department of Gastroenterology, Second Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
| | - Ci Han
- Department of Critical Care Medicine, Third Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
| | - Jinfeng Liu
- Department of Pain, Second Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
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29
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Falanga AP, Cerullo V, Marzano M, Feola S, Oliviero G, Piccialli G, Borbone N. Peptide Nucleic Acid-Functionalized Adenoviral Vectors Targeting G-Quadruplexes in the P1 Promoter of Bcl-2 Proto-Oncogene: A New Tool for Gene Modulation in Anticancer Therapy. Bioconjug Chem 2019; 30:572-582. [PMID: 30620563 DOI: 10.1021/acs.bioconjchem.8b00674] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The B-cell lymphoma 2 (Bcl-2) gene encodes for an antiapoptotic protein associated with the onset of many human tumors. Several oligonucleotides (ONs) and ON analogues are under study as potential tools to counteract the Bcl-2 expression. Among these are Peptide Nucleic Acids (PNAs). The absence of charges on PNA backbones allows the formation of PNA/DNA complexes provided with higher stability than the corresponding natural DNA/DNA counterparts. To date, the use of PNAs in antigene or antisense strategies is strongly limited by their inability to efficiently cross the cellular membranes. With the aim of downregulating the expression of Bcl-2, we propose here a novel antigene approach which uses oncolytic adenoviral vectors (OAds) as a new cancer cell-targeted PNA delivery system. The ability of oncolytic Ad5D24 vectors to selectively infect and kill cancer cells was exploited to transfect with high efficiency and selectivity a short cytosine-rich PNA complementary to the longest loop of the main G-quadruplex formed by the 23-base-long bcl2midG4 sequence located 52-30 bp upstream of the P1 promoter of Bcl-2 gene. Physico-chemical and biological investigations confirmed the ability of the PNA-conjugated Ad5D24 vectors to load and transfect their PNA cargo into human A549 and MDA-MB-436 cancer cell lines, as well as the synergistic (OAd+PNA) cytotoxic effect against the same cell lines. This approach holds promise for safer chemotherapy because of reduced toxicity to healthy tissues and organs.
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Affiliation(s)
- Andrea Patrizia Falanga
- Department of Pharmacy , University of Naples Federico II , Via Domenico Montesano 49 , 80131 Naples , Italy
| | - Vincenzo Cerullo
- Department of Molecular Medicine and Medical Biotechnologies , University of Naples Federico II , Via Sergio Pansini 5 , 80131 Naples , Italy
| | - Maria Marzano
- Department of Pharmacy , University of Naples Federico II , Via Domenico Montesano 49 , 80131 Naples , Italy
| | | | - Giorgia Oliviero
- Department of Molecular Medicine and Medical Biotechnologies , University of Naples Federico II , Via Sergio Pansini 5 , 80131 Naples , Italy
| | - Gennaro Piccialli
- Department of Pharmacy , University of Naples Federico II , Via Domenico Montesano 49 , 80131 Naples , Italy
| | - Nicola Borbone
- Department of Pharmacy , University of Naples Federico II , Via Domenico Montesano 49 , 80131 Naples , Italy
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30
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Extracellular vesicles enhance the targeted delivery of immunogenic oncolytic adenovirus and paclitaxel in immunocompetent mice. J Control Release 2019; 294:165-175. [DOI: 10.1016/j.jconrel.2018.12.022] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 11/30/2018] [Accepted: 12/12/2018] [Indexed: 02/07/2023]
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31
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Locy H, de Mey S, de Mey W, De Ridder M, Thielemans K, Maenhout SK. Immunomodulation of the Tumor Microenvironment: Turn Foe Into Friend. Front Immunol 2018; 9:2909. [PMID: 30619273 PMCID: PMC6297829 DOI: 10.3389/fimmu.2018.02909] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 11/27/2018] [Indexed: 12/23/2022] Open
Abstract
Immunotherapy, where the patient's own immune system is exploited to eliminate tumor cells, has become one of the most prominent new cancer treatment options in the last decade. The main hurdle for classical cancer vaccines is the need to identify tumor- and patient specific antigens to include in the vaccine. Therefore, in situ vaccination represents an alternative and promising approach. This type of immunotherapy involves the direct intratumoral administration of different immunomodulatory agents and uses the tumor itself as the source of antigen. The ultimate aim is to convert an immunodormant tumor microenvironment into an immunostimulatory one, enabling the immune system to eradicate all tumor lesions in the body. In this review we will give an overview of different strategies, which can be exploited for the immunomodulation of the tumor microenvironment and their emerging role in the treatment of cancer patients.
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Affiliation(s)
- Hanne Locy
- Laboratory of Molecular and Cellular Therapy (LMCT), Vrije Universiteit Brussel, Brussels, Belgium
| | - Sven de Mey
- Department of Radiotherapy, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Wout de Mey
- Laboratory of Molecular and Cellular Therapy (LMCT), Vrije Universiteit Brussel, Brussels, Belgium
| | - Mark De Ridder
- Department of Radiotherapy, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kris Thielemans
- Laboratory of Molecular and Cellular Therapy (LMCT), Vrije Universiteit Brussel, Brussels, Belgium
| | - Sarah K. Maenhout
- Laboratory of Molecular and Cellular Therapy (LMCT), Vrije Universiteit Brussel, Brussels, Belgium
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32
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NF-κB Signaling in Targeting Tumor Cells by Oncolytic Viruses-Therapeutic Perspectives. Cancers (Basel) 2018; 10:cancers10110426. [PMID: 30413032 PMCID: PMC6265863 DOI: 10.3390/cancers10110426] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/04/2018] [Accepted: 11/06/2018] [Indexed: 12/14/2022] Open
Abstract
In recent years, oncolytic virotherapy became a promising therapeutic approach, leading to the introduction of a novel generation of anticancer drugs. However, despite evoking an antitumor response, introducing an oncolytic virus (OV) to the patient is still inefficient to overcome both tumor protective mechanisms and the limitation of viral replication by the host. In cancer treatment, nuclear factor (NF)-κB has been extensively studied among important therapeutic targets. The pleiotropic nature of NF-κB transcription factor includes its involvement in immunity and tumorigenesis. Therefore, in many types of cancer, aberrant activation of NF-κB can be observed. At the same time, the activity of NF-κB can be modified by OVs, which trigger an immune response and modulate NF-κB signaling. Due to the limitation of a monotherapy exploiting OVs only, the antitumor effect can be enhanced by combining OV with NF-κB-modulating drugs. This review describes the influence of OVs on NF-κB activation in tumor cells showing NF-κB signaling as an important aspect, which should be taken into consideration when targeting tumor cells by OVs.
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33
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Garofalo M, Saari H, Somersalo P, Crescenti D, Kuryk L, Aksela L, Capasso C, Madetoja M, Koskinen K, Oksanen T, Mäkitie A, Jalasvuori M, Cerullo V, Ciana P, Yliperttula M. Antitumor effect of oncolytic virus and paclitaxel encapsulated in extracellular vesicles for lung cancer treatment. J Control Release 2018; 283:223-234. [PMID: 29864473 DOI: 10.1016/j.jconrel.2018.05.015] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 05/10/2018] [Accepted: 05/14/2018] [Indexed: 01/08/2023]
Abstract
Standard of care for cancer is commonly a combination of surgery with radiotherapy or chemoradiotherapy. However, in some advanced cancer patients this approach might still remaininefficient and may cause many side effects, including severe complications and even death. Oncolytic viruses exhibit different anti-cancer mechanisms compared with conventional therapies, allowing the possibility for improved effect in cancer therapy. Chemotherapeutics combined with oncolytic viruses exhibit stronger cytotoxic responses and oncolysis. Here, we have investigated the systemic delivery of the oncolytic adenovirus and paclitaxel encapsulated in extracellular vesicles (EV) formulation that, in vitro, significantly increased the transduction ratio and the infectious titer when compared with the virus and paclitaxel alone. We demonstrated that the obtained EV formulation reduced the in vivo tumor growth in animal xenograft model of human lung cancer. Indeed, we found that combined treatment of oncolytic adenovirus and paclitaxel encapsulated in EV has enhanced anticancer effects both in vitro and in vivo in lung cancer models. Transcriptomic comparison carried out on the explanted xenografts from the different treatment groups revealed that only 5.3% of the differentially expressed genes were overlapping indicating that a de novo genetic program is triggered by the presence of the encapsulated paclitaxel: this novel genetic program might be responsible of the observed enhanced antitumor effect. Our work provides a promising approach combining anticancer drugs and viral therapies by intravenous EV delivery as a strategy for the lung cancer treatment.
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Affiliation(s)
- M Garofalo
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland; Department of Oncology and Hemato-Oncology, Center of Excellence on Neurodegenerative Diseases, University of Milan, Via Balzaretti 9, Milan 20133, Italy.
| | - H Saari
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland
| | - P Somersalo
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland; Department of Oncology and Hemato-Oncology, Center of Excellence on Neurodegenerative Diseases, University of Milan, Via Balzaretti 9, Milan 20133, Italy
| | - D Crescenti
- Department of Oncology and Hemato-Oncology, Center of Excellence on Neurodegenerative Diseases, University of Milan, Via Balzaretti 9, Milan 20133, Italy
| | - L Kuryk
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland; National Institute of Public Health - National Institute of Hygiene, Department of Virology, 24 Chocimska str, 00-791 Warsaw, Poland; Targovax Oy, R&D, Clinical Science, R&D, Saukonpaadenranta 2, 00180 Helsinki, Finland
| | - L Aksela
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland
| | - C Capasso
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland
| | - M Madetoja
- Made Consulting, Tykistökatu 4 B, FI-20520 Turku, Finland
| | - K Koskinen
- Biological and Environmental Science, Nanoscience Center, University of Jyväskylä, Survontie 9C, 40500, Finland
| | - T Oksanen
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland
| | - A Mäkitie
- Department of Otorhinolaryngology - Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, P.O.Box 263, FI_00029 HUS, Helsinki, Finland
| | - M Jalasvuori
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland; Biological and Environmental Science, Nanoscience Center, University of Jyväskylä, Survontie 9C, 40500, Finland
| | - V Cerullo
- Laboratory of ImmunoViroTherapy, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland
| | - P Ciana
- Department of Oncology and Hemato-Oncology, Center of Excellence on Neurodegenerative Diseases, University of Milan, Via Balzaretti 9, Milan 20133, Italy
| | - M Yliperttula
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Viikinkaari 5, Helsinki 00790, Finland.
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Hemminki O, Oksanen M, Taipale K, Liikanen I, Koski A, Joensuu T, Kanerva A, Hemminki A. Oncograms Visualize Factors Influencing Long-Term Survival of Cancer Patients Treated with Adenoviral Oncolytic Immunotherapy. MOLECULAR THERAPY-ONCOLYTICS 2018; 9:41-50. [PMID: 29989063 PMCID: PMC6035494 DOI: 10.1016/j.omto.2018.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/17/2018] [Indexed: 02/07/2023]
Abstract
The first US Food and Drug Administration (FDA)- and EMA-approved oncolytic virus has been available since 2015. However, there are no markers available that would predict benefit for the individual patient. During 2007–2012, we treated 290 patients with advanced chemotherapy-refractory cancers, using 10 different oncolytic adenoviruses. Treatments were given in a Finnish Medicines Agency (FIMEA)-regulated individualized patient treatment program (the Advanced Therapy Access Program [ATAP]), which required long-term follow-up of patients, which is presented here. Focusing on the longest surviving patients, some key clinical and biological features are presented as “oncograms.” Some key attributes that could be captured in the oncogram are suggested to predict treatment response and survival after oncolytic adenovirus treatment. The oncogram includes immunological laboratory parameters assessed in peripheral blood (leukocytes, neutrophil-to-lymphocyte ratio, interleukin-8 [IL-8], HMGB1, anti-viral neutralizing antibody status), features of the patient (gender, performance status), tumor features (histological tumor type, tumor load, region of metastases), and oncolytic virus-specific features (arming of the virus). The retrospective approach used here facilitates verification in a prospective controlled trial setting. To our knowledge, the oncogram is the first holistic attempt to identify the patients most likely to benefit from adenoviral oncolytic virotherapy.
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Affiliation(s)
- Otto Hemminki
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Department of Urology, Helsinki University Hospital, Helsinki, Finland
| | - Minna Oksanen
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Kristian Taipale
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Ilkka Liikanen
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anniina Koski
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | | | - Anna Kanerva
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Department of Obstetrics and Gynecology, Helsinki University Hospital, Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Docrates Hospital, Helsinki, Finland.,TILT Biotherapeutics Ltd., Helsinki, Finland.,Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
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35
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Cervera-Carrascon V, Siurala M, Santos JM, Havunen R, Tähtinen S, Karell P, Sorsa S, Kanerva A, Hemminki A. TNFa and IL-2 armed adenoviruses enable complete responses by anti-PD-1 checkpoint blockade. Oncoimmunology 2018; 7:e1412902. [PMID: 29721366 DOI: 10.1080/2162402x.2017.1412902] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/02/2017] [Accepted: 11/20/2017] [Indexed: 02/07/2023] Open
Abstract
Releasing the patient's immune system against their own malignancy by the use of checkpoint inhibitors is delivering promising results. However, only a subset of patients currently benefit from them. One major limitation of these therapies relates to the inability of T cells to detect or penetrate into the tumor resulting in unresponsiveness to checkpoint inhibition. Virotherapy is an attractive tool for enabling checkpoint inhibitors as viruses are naturally recognized by innate defense elements which draws the attention of the immune system. Besides their intrinsic immune stimulating properties, the adenoviruses used here are armed to express tumor necrosis factor alpha (TNFa) and interleukin-2 (IL-2). These cytokines result in immunological danger signaling and multiple appealing T-cell effects, including trafficking, activation and propagation. When these viruses were injected into B16.OVA melanoma tumors in animals concomitantly receiving programmed cell-death protein 1 (PD-1) blocking antibodies both tumor growth control (p < 0.0001) and overall survival (p < 0.01) were improved. In this set-up, the addition of adoptive cell therapy with OT-I lymphocytes did not increase efficacy further. When virus injections were initiated before antibody treatment in a prime-boost approach, 100% of tumors regressed completely and all mice survived. Viral expression of IL2 and TNFa altered the cytokine balance in the tumor microenvironment towards Th1 and increased the intratumoral proportion of CD8+ and conventional CD4+ T cells. These preclinical studies provide the rationale and schedule for a clinical trial where oncolytic adenovirus coding for TNFa and IL-2 (TILT-123) is used in melanoma patients receiving an anti-PD-1 antibody.
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Affiliation(s)
- V Cervera-Carrascon
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - M Siurala
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - J M Santos
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - R Havunen
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - S Tähtinen
- Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - P Karell
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Uusima, Finland
| | - S Sorsa
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - A Kanerva
- Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland.,Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Uusima, Finland
| | - A Hemminki
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland.,Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Uusima, Finland
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36
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Katayama Y, Tachibana M, Kurisu N, Oya Y, Terasawa Y, Goda H, Kobiyama K, Ishii KJ, Akira S, Mizuguchi H, Sakurai F. Oncolytic Reovirus Inhibits Immunosuppressive Activity of Myeloid-Derived Suppressor Cells in a TLR3-Dependent Manner. THE JOURNAL OF IMMUNOLOGY 2018; 200:2987-2999. [PMID: 29555782 DOI: 10.4049/jimmunol.1700435] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 02/21/2018] [Indexed: 12/24/2022]
Abstract
Oncolytic reovirus, which possesses 10 segments of dsRNA genome, mediates antitumor effects via not only virus replication in a tumor cell-specific manner, but also activation of antitumor immunity; however, the mechanism(s) of reovirus-induced activation of antitumor immunity have not been fully elucidated. Recent studies have demonstrated that overcoming an immunosuppressive environment in tumor-bearing hosts is important to achieve efficient activation of antitumor immunity. Among the various types of cells involved in immunosuppression, it has been revealed that myeloid-derived suppressor cells (MDSCs) are significantly increased in tumor-bearing hosts and play crucial roles in the immunosuppression in tumor-bearing hosts. In this study, we examined whether reovirus inhibits the immunosuppressive activity of MDSCs, resulting in efficient activation of immune cells after in vivo administration. The results showed that splenic MDSCs recovered from PBS-treated tumor-bearing mice significantly suppressed the Ag-specific proliferation of CD8+ T cells. In contrast, the suppressive activity of MDSCs on T cell proliferation was significantly reduced after reovirus administration. Reovirus also inhibited the immunosuppressive activity of MDSCs in IFN-β promoter stimulator-1 knockout (KO) mice and in wild-type mice. In contrast, the immunosuppressive activity of MDSCs in TLR-3 KO mice was not significantly altered by reovirus treatment. The activation levels of CD4+ and CD8+ T cells were significantly lower in TLR3 KO mice than in wild-type mice after reovirus administration. These results indicate that reovirus inhibits the immunosuppressive activity of MDSCs in a TLR3, but not IFN-β promoter stimulator-1, signaling-dependent manner.
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Affiliation(s)
- Yuki Katayama
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masashi Tachibana
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Nozomi Kurisu
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yukako Oya
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuichi Terasawa
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiroshi Goda
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kouji Kobiyama
- Laboratory of Adjuvant Innovation, Center for Vaccine and Adjuvant Research, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka 567-0085, Japan.,Laboratory of Vaccine Science, World Premier International Research Center Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ken J Ishii
- Laboratory of Adjuvant Innovation, Center for Vaccine and Adjuvant Research, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka 567-0085, Japan.,Laboratory of Vaccine Science, World Premier International Research Center Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shizuo Akira
- Laboratory of Host Defense, World Premier International Research Center Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan.,Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiroyuki Mizuguchi
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan.,Laboratory of Hepatocyte Differentiation, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka 567-0085, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Osaka 565-0871, Japan; and
| | - Fuminori Sakurai
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan; .,Laboratory of Regulatory Sciences for Oligonucleotide Therapeutics, Clinical Drug Development Unit, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
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37
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Taipale K, Tähtinen S, Havunen R, Koski A, Liikanen I, Pakarinen P, Koivisto-Korander R, Kankainen M, Joensuu T, Kanerva A, Hemminki A. Interleukin 8 activity influences the efficacy of adenoviral oncolytic immunotherapy in cancer patients. Oncotarget 2018; 9:6320-6335. [PMID: 29464075 PMCID: PMC5814215 DOI: 10.18632/oncotarget.23967] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 12/12/2017] [Indexed: 12/20/2022] Open
Abstract
After the landmark approval of T-VEC, oncolytic viruses are finding their way to the clinics. However, response rates have still room for improvement, and unfortunately there are currently no available markers to predict responses for oncolytic immunotherapy. Interleukin 8 (IL-8) production is upregulated in many cancers and it also connects to several pathways that have been shown to impair the efficacy of adenoviral immunotherapy. We studied the role of IL-8 in 103 cancer patients treated with oncolytic adenoviruses. We found high baseline serum IL-8 concentration to be independently associated with poor prognosis (p<0.001). Further, normal baseline IL-8 was associated with improved prognostic potential of calculation of the neutrophil-to-lymphocyte ratio (p<0.001). Interestingly, a decrease in IL-8 concentration after treatment with oncolytic adenovirus predicted better overall survival (p<0.001) and higher response rate, although this difference was not significant (p=0.066). We studied the combination of adenovirus and IL-8 neutralizing antibody ex vivo in single cell suspensions and in co-cultures of tumor-associated CD15+ neutrophils and CD3+ tumor-infiltrating lymphocytes derived from fresh patient tumor samples. These results indicate a role for IL-8 as a biomarker in oncolytic virotherapy, but additionally provide a rationale for targeting IL-8 to improve treatment efficacy. In conclusion, curtailing the activity of IL-8 systemically or locally in the tumor microenvironment could improve anti-tumor immune responses resulting in enhanced efficacy of adenoviral immunotherapy of cancer.
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Affiliation(s)
- Kristian Taipale
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland
| | - Siri Tähtinen
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland
| | - Riikka Havunen
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland
| | - Anniina Koski
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland.,Department of Neurosurgery, HUCH, Helsinki, Finland
| | - Ilkka Liikanen
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland
| | - Päivi Pakarinen
- Department of Obstetrics and Gynecology, HUCH, Helsinki, Finland
| | | | - Matti Kankainen
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | | | - Anna Kanerva
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland.,Department of Obstetrics and Gynecology, HUCH, Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, University of Helsinki, Faculty of Medicine, Helsinki, Finland.,Docrates Cancer Center, Helsinki, Finland.,TILT Biotherapeutics Ltd., Helsinki, Finland.,Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
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38
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Affiliation(s)
- Thaiz Rivera Vargas
- Centre de Recherche; INSERM U1231; Facultés de Médecine et de Pharmacie; Dijon France
- Faculté de Médecine; Université de Bourgogne Franche comté; Dijon France
| | - Lionel Apetoh
- Centre de Recherche; INSERM U1231; Facultés de Médecine et de Pharmacie; Dijon France
- Faculté de Médecine; Université de Bourgogne Franche comté; Dijon France
- Centre Georges François Leclerc; Dijon France
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39
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Yin J, Markert JM, Leavenworth JW. Modulation of the Intratumoral Immune Landscape by Oncolytic Herpes Simplex Virus Virotherapy. Front Oncol 2017; 7:136. [PMID: 28695111 PMCID: PMC5483455 DOI: 10.3389/fonc.2017.00136] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 06/09/2017] [Indexed: 12/28/2022] Open
Abstract
Vaccines and immunotherapeutic approaches to cancers with the advent of immune checkpoint inhibitors and chimeric antigen receptor-modified T cells have recently demonstrated preclinical success and entered clinical trials. Despite advances in these approaches and combinatorial therapeutic regimens, depending on the nature of the cancer and the immune and metabolic landscape within the tumor microenvironment, current immunotherapeutic modalities remain inadequate. Recent clinical trials have demonstrated clear evidence of significant, and sometimes dramatic, antitumor activity, and long-term survival effects of a variety of oncolytic viruses (OVs), particularly oncolytic herpes simplex virus (oHSV). Acting as a multifaceted gene therapy vector and potential adjuvant-like regimens, oHSV can carry genes encoding immunostimulatory molecules in its genome. The oncolytic effect of oHSV and the inflammatory response that the virus stimulates provide a one-two punch at attacking tumors. However, mechanisms underlying oHSV-induced restoration of intratumoral immunosuppression demand extensive research in order to further improve its therapeutic efficacy. In this review, we discuss the current OV-based therapy, with a focus on the unique aspects of oHSV-initiated antiviral and antitumor immune responses, arising from virus-mediated immunological cell death to intratumoral innate and adaptive immunity.
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Affiliation(s)
- Jie Yin
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, United States.,Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - James M Markert
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, United States.,Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States.,Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jianmei W Leavenworth
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, United States.,Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
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40
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Capasso C, Magarkar A, Cervera-Carrascon V, Fusciello M, Feola S, Muller M, Garofalo M, Kuryk L, Tähtinen S, Pastore L, Bunker A, Cerullo V. A novel in silico framework to improve MHC-I epitopes and break the tolerance to melanoma. Oncoimmunology 2017; 6:e1319028. [PMID: 28932628 DOI: 10.1080/2162402x.2017.1319028] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/05/2017] [Accepted: 04/07/2017] [Indexed: 12/21/2022] Open
Abstract
Tolerance toward tumor antigens, which are shared by normal tissues, have often limited the efficacy of cancer vaccines. However, wild type epitopes can be tweaked to activate cross-reactive T-cell clones, resulting in antitumor activity. The design of these analogs (i.e., heteroclitic peptides) can be difficult and time-consuming since no automated in silico tools are available. Hereby we describe the development of an in silico framework to improve the selection of heteroclitic peptides. The Epitope Discovery and Improvement System (EDIS) was first validated by studying the model antigen SIINFEKL. Based on artificial neural network (ANN) predictions, we selected two mutant analogs that are characterized by an increased MHC-I binding affinity (SIINFAKL) or increased TCR stimulation (SIIWFEKL). Therapeutic vaccination using optimized peptides resulted in enhanced antitumor activity and against B16.OVA melanomas in vivo. The translational potential of the EDIS platform was further demonstrated by studying the melanoma-associated antigen tyrosinase related protein 2 (TRP2). Following therapeutic immunization with the EDIS-derived epitope SVYDFFAWL, a significant reduction in the growth of established B16.F10 tumors was observed, suggesting a break in the tolerance toward the wild type epitope. Finally, we tested a multi vaccine approach, demonstrating that combination of wild type and mutant epitopes targeting both TRP2 and OVA antigens increases the antitumor response. In conclusion, by taking advantage of available prediction servers and molecular dynamics simulations, we generated an innovative platform for studying the initial sequences and selecting lead candidates with improved immunological features. Taken together, EDIS is the first automated algorithm-driven platform to speed up the design of heteroclitic peptides that can be publicly queried online.
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Affiliation(s)
- Cristian Capasso
- Laboratory of Immunovirotherapy, Drug Research Program, University of Helsinki, Helsinki, Finland
| | - Aniket Magarkar
- Centre for Drug Research at the Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague 6, Czech Republic
| | - Victor Cervera-Carrascon
- TILT Biotherapeutics, Helsinki, Finland.,Cancer Gene Therapy Group, Department of Oncology, Faculty of Medicine, University Helsinki, Helsinki, Finland
| | - Manlio Fusciello
- Laboratory of Immunovirotherapy, Drug Research Program, University of Helsinki, Helsinki, Finland
| | - Sara Feola
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Martin Muller
- Department of Pharmacy - Center for Drug Research, Pharmaceutical Biology, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Mariangela Garofalo
- Centre for Drug Research at the Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | | | - Siri Tähtinen
- Laboratory of Immunovirotherapy, Drug Research Program, University of Helsinki, Helsinki, Finland
| | - Lucio Pastore
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy.,CEINGE-Biotecnologie Avanzate S.C. a R.L., Naples, Italy
| | - Alex Bunker
- Laboratory of Immunovirotherapy, Drug Research Program, University of Helsinki, Helsinki, Finland
| | - Vincenzo Cerullo
- Laboratory of Immunovirotherapy, Drug Research Program, University of Helsinki, Helsinki, Finland
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41
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Berkey SE, Thorne SH, Bartlett DL. Oncolytic Virotherapy and the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1036:157-172. [PMID: 29275471 DOI: 10.1007/978-3-319-67577-0_11] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oncolytic viral therapy is a promising approach to treat many malignancies, including breast, colorectal, hepatocellular, and melanoma. The best results are seen when using "targeted and armed" viruses. These are viruses that have been genetically modified to selectively replicate within cancer cells and express specific transgenes that alter the tumor microenvironment to inhibit tumor progression. The products of these transgenes induce cell death, make the virus less virulent, compromise tumor vascularity, and are capable of modulating or enhancing the immune system-such as cytokines and chemokines. In addition, oncolytic viruses can induce anti-vascular effects and disrupt the extracellular matrix to improve viral spread within the tumor. Oncolytic viruses also improve crosstalk between fibroblasts, cytokine-induced killer cells, and cancer cells within the microenvironment, leading to enhanced tumor cell death.
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Affiliation(s)
- Sara E Berkey
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Steve H Thorne
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - David L Bartlett
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
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42
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Abstract
Toll-like receptors (TLRs), as the most important pattern recognition receptors in innate immunity, play a pivotal role in inducing immune response through recognition of microbial invaders or specific agonists. Recent studies have suggested that TLRs could serve as important regulators in the development of a variety of cancer. However, increasing evidences have shown that TLRs may display quite opposite outcomes in cancer development. Although several potential therapeutic Toll-like receptor ligands have been found, the mechanism and therapy prospect of TLRs in cancer development has to be further elucidated to accelerate the clinical application. By performing a systematic review of the present findings on TLRs in cancer immunology, we attempted to evaluate the therapeutic potential of TLRs in cancer therapy and elucidate the potential mechanism of cancer progress regulated by TLR signaling and the reported targets on TLRs for clinical application. An electronic databases search was conducted in PubMed, Chinese Scientific Journal Database, and Chinese Biomedical Literature Database from their inception to February 1, 2016. The following keywords were used to search the databases: Toll-like receptors, cancer therapy, therapeutic target, innate immunity. Of 244 studies that were identified, 97 nonrelevant studies were excluded. In total, 147 full-text articles were assessed, and from these, 54 were excluded as they did not provide complete key information. Thus, 93 studies were considered eligible and included in the analysis. According to the data from the included trials, 14 TLR ligands (77.8%) from 82 studies have been demonstrated to display antitumor property in various cancers, whereas 4 ligands (22.2%) from 11 studies promote tumors. Among them, only 3 TLR ligands have been approved for cancer therapy, and 9 ligands were in clinical trials. In addition, the potential mechanism of recently reported targets on TLRs for clinical application was also evaluated in this review. We show that targeting TLRs in cancer immunotherapy is a promising strategy for cancer therapy, and the specific TLR ligands, either alone or combination, exhibit antitumor potential.
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Zamarin D, Pesonen S. Replication-Competent Viruses as Cancer Immunotherapeutics: Emerging Clinical Data. Hum Gene Ther 2016; 26:538-49. [PMID: 26176173 PMCID: PMC4968310 DOI: 10.1089/hum.2015.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Replication-competent (oncolytic) viruses (OV) as cancer immunotherapeutics have gained an increasing level of attention over the last few years while the clinical evidence of virus-mediated antitumor immune responses is still anecdotal. Multiple clinical studies are currently ongoing and more immunomonitoring results are expected within the next five years. All viruses can be recognized by the immune system and are therefore potential candidates for immune therapeutics. However, each virus activates innate immune system by using different combination of recognition receptors/pathways which leads to qualitatively different adaptive immune responses. This review summarizes immunological findings in cancer patients following treatment with replication-competent viruses.
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Affiliation(s)
- Dmitriy Zamarin
- 1 Memorial Sloan Kettering Cancer Center , New York, New York
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Abstract
Oncolytic viruses (OVs) comprise an emerging cancer therapeutic modality whose activity involves both direct tumor cell lysis and the induction of immunogenic cell death (ICD). Cellular proteins released from the OV-lysed tumor cells, known as damage-associated molecular patterns and tumor-associated antigens, activate dendritic cells and elicit adaptive antitumor immunity. Interaction with the innate immune system and the development of long-lasting immune memory also contribute to OV-induced cell death. The degree to which the ICD component contributes to the clinical efficacy of OV therapy is still unclear. Modulation of a range of immune interactions may be beneficial or detrimental in nature and the interactions depend on the specific tumor, the site and extent of the disease, the immunosuppressive tumor microenvironment, the OV platform, the dose, time, and delivery conditions, as well as individual patient responses. To enhance the contribution of ICD, OVs have been engineered to express immunostimulatory genes and strategies have been developed to combine OV therapy with chemo- and immune-based therapeutic regimens. However, these approaches carry the risk that they may also be tolerogenic depending on their levels and the presence of other cytokines, their direct antiviral effects, and the timing and conditions of their expression. The contribution of autophagy to adaptive immunity, the ability of the OVs to kill cancer stem cells, and the patient’s baseline immune status are additional considerations. This review focuses on the complex and as yet poorly understood balancing act that dictates the outcome of OV therapy. We summarize current understanding of the OVs’ function in eliciting antitumor immunity and its relationship to therapeutic efficacy. Also discussed are the criteria involved in restraining antiviral immune responses and minimizing pathology while promoting antitumor immunity to override immune tolerance.
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Affiliation(s)
- Laure Aurelian
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
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Allan KJ, Stojdl DF, Swift SL. High-throughput screening to enhance oncolytic virus immunotherapy. Oncolytic Virother 2016; 5:15-25. [PMID: 27579293 PMCID: PMC4996253 DOI: 10.2147/ov.s66217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
High-throughput screens can rapidly scan and capture large amounts of information across multiple biological parameters. Although many screens have been designed to uncover potential new therapeutic targets capable of crippling viruses that cause disease, there have been relatively few directed at improving the efficacy of viruses that are used to treat disease. Oncolytic viruses (OVs) are biotherapeutic agents with an inherent specificity for treating malignant disease. Certain OV platforms – including those based on herpes simplex virus, reovirus, and vaccinia virus – have shown success against solid tumors in advanced clinical trials. Yet, many of these OVs have only undergone minimal engineering to solidify tumor specificity, with few extra modifications to manipulate additional factors. Several aspects of the interaction between an OV and a tumor-bearing host have clear value as targets to improve therapeutic outcomes. At the virus level, these include delivery to the tumor, infectivity, productivity, oncolysis, bystander killing, spread, and persistence. At the host level, these include engaging the immune system and manipulating the tumor microenvironment. Here, we review the chemical- and genome-based high-throughput screens that have been performed to manipulate such parameters during OV infection and analyze their impact on therapeutic efficacy. We further explore emerging themes that represent key areas of focus for future research.
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Affiliation(s)
- K J Allan
- Children's Hospital of Eastern Ontario (CHEO) Research Institute; Department of Biology, Microbiology and Immunology
| | - David F Stojdl
- Children's Hospital of Eastern Ontario (CHEO) Research Institute; Department of Biology, Microbiology and Immunology; Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada
| | - S L Swift
- Children's Hospital of Eastern Ontario (CHEO) Research Institute
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46
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Hammerich L, Bhardwaj N, Kohrt HE, Brody JD. In situ vaccination for the treatment of cancer. Immunotherapy 2016; 8:315-30. [DOI: 10.2217/imt.15.120] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Vaccination has had a tremendous impact on human health by harnessing the immune system to prevent and eradicate infectious diseases and this same approach might be used in cancer therapy. Cancer vaccine development has been slowed hindered by the paucity of universal tumor-associated antigens and the difficulty in isolating and preparing individualized vaccines ex vivo. Another approach has been to initiate or stimulate an immune response in situ (at the tumor site) and thus exploit the potentially numerous tumor-associated antigens there. Here, we review the many approaches that have attempted to accomplish effective in situ vaccination, using intratumoral administration of immunomodulators to increase the numbers or activation state of either antigen present cells or T cells within the tumor.
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Affiliation(s)
- Linda Hammerich
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Nina Bhardwaj
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Holbrook E Kohrt
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Joshua D Brody
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Siurala M, Vähä-Koskela M, Havunen R, Tähtinen S, Bramante S, Parviainen S, Mathis JM, Kanerva A, Hemminki A. Syngeneic syrian hamster tumors feature tumor-infiltrating lymphocytes allowing adoptive cell therapy enhanced by oncolytic adenovirus in a replication permissive setting. Oncoimmunology 2016; 5:e1136046. [PMID: 27467954 DOI: 10.1080/2162402x.2015.1136046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/18/2015] [Accepted: 12/18/2015] [Indexed: 12/24/2022] Open
Abstract
Adoptive transfer of tumor-infiltrating lymphocytes (TIL) has shown promising yet sometimes suboptimal results in clinical trials for advanced cancer, underscoring the need for approaches improving efficacy and safety. Six implantable syngeneic tumor cell lines of the Syrian hamster were used to initiate TIL cultures. TIL generated from tumor fragments cultured in human interleukin-2 (IL-2) for 10 d were adoptively transferred into tumor-bearing hamsters with concomitant intratumoral injections of oncolytic adenovirus (Ad5-D24) for the assessment of antitumor efficacy. Pancreatic cancer (HapT1) and melanoma (RPMI 1846) TIL exhibited potent and tumor-specific cytotoxicity in effector-to-target (E/T) assays. MHC Class I blocking abrogated the cell killing of RPMI 1846 TIL, indicating cytotoxic CD8(+) T-cell activity. When TIL were combined with Ad5-D24 in vitro, HapT1 tumor cell killing was significantly enhanced over single agents. In vivo, the intratumoral administration of HapT1 TIL and Ad5-D24 resulted in improved tumor growth control compared with either treatment alone. Additionally, splenocytes derived from animals treated with the combination of Ad5-D24 and TIL killed autologous tumor cells more efficiently than monotherapy-derived splenocytes, suggesting that systemic antitumor immunity was induced. For the first time, TIL of the Syrian hamster have been cultured, characterized and used therapeutically together with oncolytic adenovirus for enhancing the efficacy of TIL therapy. Our results support human translation of oncolytic adenovirus as an enabling technology for adoptive T-cell therapy of solid tumors.
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Affiliation(s)
- Mikko Siurala
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; TILT Biotherapeutics Ltd, Helsinki, Finland
| | - Markus Vähä-Koskela
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Riikka Havunen
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Siri Tähtinen
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Simona Bramante
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki , Helsinki, Finland
| | - Suvi Parviainen
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; TILT Biotherapeutics Ltd, Helsinki, Finland
| | - J Michael Mathis
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University , Baton Rouge, LA, USA
| | - Anna Kanerva
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Department of Obstetrics and Gynecology, Helsinki University Central Hospital (HUCH), Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Department of Pathology, Faculty of Medicine, University of Helsinki, Helsinki, Finland; TILT Biotherapeutics Ltd, Helsinki, Finland; Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland
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48
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Garofalo M, Iovine B, Kuryk L, Capasso C, Hirvinen M, Vitale A, Yliperttula M, Bevilacqua MA, Cerullo V. Oncolytic Adenovirus Loaded with L-carnosine as Novel Strategy to Enhance the Antitumor Activity. Mol Cancer Ther 2016; 15:651-60. [PMID: 26861248 DOI: 10.1158/1535-7163.mct-15-0559] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 01/30/2016] [Indexed: 11/16/2022]
Abstract
Oncolytic viruses are able to specifically replicate, infect, and kill only cancer cells. Their combination with chemotherapeutic drugs has shown promising results due to the synergistic action of virus and drugs; the combinatorial therapy is considered a potential clinically relevant approach for cancer. In this study, we optimized a strategy to absorb peptides on the viral capsid, based on electrostatic interaction, and used this strategy to deliver an active antitumor drug. We used L-carnosine, a naturally occurring histidine dipeptide with a significant antiproliferative activity. An ad hoc modified, positively charged L-carnosine was combined with the capsid of an oncolytic adenovirus to generate an electrostatic virus-carnosine complex. This complex showed enhanced antitumor efficacy in vitro and in vivo in different tumor models. In HCT-116 colorectal and A549 lung cancer cell lines, the complex showed higher transduction ratio and infectious titer compared with an uncoated oncolytic adenovirus. The in vivo efficacy of the complex was tested in lung and colon cancer xenograft models, showing a significant reduction in tumor growth. Importantly, we investigated the molecular mechanisms underlying the effects of complex on tumor growth reduction. We found that complex induces apoptosis in both cell lines, by using two different mechanisms, enhancing viral replication and affecting the expression of Hsp27. Our system could be used in future studies also for delivery of other bioactive drugs. Mol Cancer Ther; 15(4); 651-60. ©2016 AACR.
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Affiliation(s)
- Mariangela Garofalo
- Laboratory of ImmunoViroTherapy, Centre for Drug Research (CDR), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland. Department of Molecular Medicine and Medical Biotechnology, University Federico II of Naples, Naples, Italy
| | - Barbara Iovine
- Department of Molecular Medicine and Medical Biotechnology, University Federico II of Naples, Naples, Italy
| | - Lukasz Kuryk
- Laboratory of ImmunoViroTherapy, Centre for Drug Research (CDR), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland. Oncos Therapeutics Ltd., Helsinki, Finland. Department of Virology, National Institute of Public Health-National Institute of Hygiene, Warsaw, Poland
| | - Cristian Capasso
- Laboratory of ImmunoViroTherapy, Centre for Drug Research (CDR), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Mari Hirvinen
- Laboratory of ImmunoViroTherapy, Centre for Drug Research (CDR), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Andrea Vitale
- Department of Movement Sciences and Wellness (DiSMEB), University of Naples Parthenope and CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Marjo Yliperttula
- Division of Pharmaceutical Biosciences and Centre for Drug Research, University of Helsinki, Helsinki, Finland
| | - Maria Assunta Bevilacqua
- Department of Molecular Medicine and Medical Biotechnology, University Federico II of Naples, Naples, Italy
| | - Vincenzo Cerullo
- Laboratory of ImmunoViroTherapy, Centre for Drug Research (CDR), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.
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49
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Wang YG, Huang PP, Zhang R, Ma BY, Zhou XM, Sun YF. Targeting adeno-associated virus and adenoviral gene therapy for hepatocellular carcinoma. World J Gastroenterol 2016; 22:326-337. [PMID: 26755879 PMCID: PMC4698495 DOI: 10.3748/wjg.v22.i1.326] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 09/14/2015] [Accepted: 09/30/2015] [Indexed: 02/06/2023] Open
Abstract
Human hepatocellular carcinoma (HCC) heavily endangers human heath worldwide. HCC is one of most frequent cancers in China because patients with liver disease, such as chronic hepatitis, have the highest cancer susceptibility. Traditional therapeutic approaches have limited efficacy in advanced liver cancer, and novel strategies are urgently needed to improve the limited treatment options for HCC. This review summarizes the basic knowledge, current advances, and future challenges and prospects of adeno-associated virus (AAV) and adenoviruses as vectors for gene therapy of HCC. This paper also reviews the clinical trials of gene therapy using adenovirus vectors, immunotherapy, toxicity and immunological barriers for AAV and adenoviruses, and proposes several alternative strategies to overcome the therapeutic barriers to using AAV and adenoviruses as vectors.
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50
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Hemminki O, Parviainen S, Juhila J, Turkki R, Linder N, Lundin J, Kankainen M, Ristimäki A, Koski A, Liikanen I, Oksanen M, Nettelbeck DM, Kairemo K, Partanen K, Joensuu T, Kanerva A, Hemminki A. Immunological data from cancer patients treated with Ad5/3-E2F-Δ24-GMCSF suggests utility for tumor immunotherapy. Oncotarget 2015; 6:4467-81. [PMID: 25714011 PMCID: PMC4414204 DOI: 10.18632/oncotarget.2901] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 12/14/2014] [Indexed: 11/25/2022] Open
Abstract
Oncolytic viruses that selectively replicate in tumor cells can be used for treatment of cancer. Accumulating data suggests that virus induced oncolysis can enhance anti-tumor immunity and break immune tolerance. To capitalize on the immunogenic nature of oncolysis, we generated a quadruple modified oncolytic adenovirus expressing granulocyte-macrophage colony-stimulating factor (GMCSF). Ad5/3-E2F-Δ24-GMCSF (CGTG-602) was engineered to contain a tumor specific E2F1 promoter driving an E1 gene deleted at the retinoblastoma protein binding site (“Δ24”). The fiber features a knob from serotype 3 for enhanced gene delivery to tumor cells. The virus was tested preclinically in vitro and in vivo and then 13 patients with solid tumors refractory to standard therapies were treated. Treatments were well tolerated and frequent tumor- and adenovirus-specific T-cell immune responses were seen. Overall, with regard to tumor marker or radiological responses, signs of antitumor efficacy were seen in 9/12 evaluable patients (75%). The radiological disease control rate with positron emission tomography was 83% while the response rate (including minor responses) was 50%. Tumor biopsies indicated accumulation of immunological cells, especially T-cells, to tumors after treatment. RNA expression analyses of tumors indicated immunological activation and metabolic changes secondary to virus replication.
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Affiliation(s)
- Otto Hemminki
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Suvi Parviainen
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Juuso Juhila
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Riku Turkki
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Nina Linder
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland
| | - Johan Lundin
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland.,Division of Global Health/IHCAR, Karolinska Institutet, Stockholm, Sweden
| | | | - Ari Ristimäki
- Department of Pathology, HUSLAB and Haartman Institute, Helsinki, University Central Hospital and Genome-Scale Biology, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - Anniina Koski
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Ilkka Liikanen
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Minna Oksanen
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland
| | | | | | | | | | - Anna Kanerva
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland.,Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Finland
| | - Akseli Hemminki
- Cancer Gene Therapy Group, Transplantation Laboratory & Haartman Institute, University of Helsinki, Helsinki, Finland.,Docrates Cancer Center, Helsinki, Finland.,TILT Biotherapeutics Ltd, Helsinki, Finland
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