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Rivera J, Digklia A, Christou AS, Anibal J, Vallis KA, Wood BJ, Stride E. A Review of Ultrasound-Mediated Checkpoint Inhibitor Immunotherapy. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:1-7. [PMID: 37798210 DOI: 10.1016/j.ultrasmedbio.2023.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 08/11/2023] [Accepted: 08/26/2023] [Indexed: 10/07/2023]
Abstract
Over the past decade, immunotherapy has emerged as a major modality in cancer medicine. However, despite its unprecedented success, immunotherapy currently benefits only a subgroup of patients, may induce responses of limited duration and is associated with potentially treatment-limiting side effects. In addition, responses to immunotherapeutics are sometimes diminished by the emergence of a complex array of resistance mechanisms. The efficacy of immunotherapy depends on dynamic interactions between tumour cells and the immune landscape in the tumour microenvironment. Ultrasound, especially in conjunction with cavitation-promoting agents such as microbubbles, can assist in the uptake and/or local release of immunotherapeutic agents at specific target sites, thereby increasing treatment efficacy and reducing systemic toxicity. There is also increasing evidence that ultrasound and/or cavitation may themselves directly stimulate a beneficial immune response. In this review, we summarize the latest developments in the use of ultrasound and cavitation agents to promote checkpoint inhibitor immunotherapy.
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Affiliation(s)
- Jocelyne Rivera
- Center for Interventional Oncology, Interventional Radiology, National Institutes of Health Clinical Center, National Cancer Institute, Bethesda, MD, USA; Botnar Research Centre, Institute of Biomedical Engineering, University of Oxford, Oxford, UK
| | - Antonia Digklia
- Department of Oncology, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne, Switzerland
| | - Anna S Christou
- Center for Interventional Oncology, Interventional Radiology, National Institutes of Health Clinical Center, National Cancer Institute, Bethesda, MD, USA
| | - James Anibal
- Center for Interventional Oncology, Interventional Radiology, National Institutes of Health Clinical Center, National Cancer Institute, Bethesda, MD, USA; Computational Health Informatics Lab, Institute of Biomedical Engineering, University of Oxford, Oxford, UK
| | | | - Bradford J Wood
- Center for Interventional Oncology, Interventional Radiology, National Institutes of Health Clinical Center, National Cancer Institute, Bethesda, MD, USA
| | - Eleanor Stride
- Botnar Research Centre, Institute of Biomedical Engineering, University of Oxford, Oxford, UK.
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Veinalde R, Pidelaserra-Martí G, Moulin C, Tan CL, Schäfer TE, Kang N, Ball CR, Leichsenring J, Stenzinger A, Kaderali L, Jäger D, Ungerechts G, Engeland CE. Virotherapy combined with anti-PD-1 transiently reshapes the tumor immune environment and induces anti-tumor immunity in a preclinical PDAC model. Front Immunol 2023; 13:1096162. [PMID: 36726983 PMCID: PMC9886093 DOI: 10.3389/fimmu.2022.1096162] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/12/2022] [Indexed: 01/18/2023] Open
Abstract
Introduction Pancreatic ductal adenocarcinoma (PDAC) is largely refractory to cancer immunotherapy with PD-1 immune checkpoint blockade (ICB). Oncolytic virotherapy has been shown to synergize with ICB. In this work, we investigated the combination of anti-PD-1 and oncolytic measles vaccine in an immunocompetent transplantable PDAC mouse model. Methods We characterized tumor-infiltrating T cells by immunohistochemistry, flow cytometry and T cell receptor sequencing. Further, we performed gene expression profiling of tumor samples at baseline, after treatment, and when tumors progressed. Moreover, we analyzed systemic anti-tumor and anti-viral immunity. Results Combination treatment significantly prolonged survival compared to monotherapies. Tumor-infiltrating immune cells were increased after virotherapy. Gene expression profiling revealed a unique, but transient signature of immune activation after combination treatment. However, systemic anti-tumor immunity was induced by virotherapy and remained detectable even when tumors progressed. Anti-PD-1 treatment did not impact anti-viral immunity. Discussion Our results indicate that combined virotherapy and ICB induces anti-tumor immunity and reshapes the tumor immune environment. However, further refinement of this approach may be required to develop its full potential and achieve durable efficacy.
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Affiliation(s)
- Rūta Veinalde
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Gemma Pidelaserra-Martí
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany,Faculty of Health, School of Medicine, Center for Biomedical Research and Education (ZBAF), Institute of Virology and Microbiology, Witten/Herdecke University, Witten, Germany,Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Coline Moulin
- Faculty of Health, School of Medicine, Center for Biomedical Research and Education (ZBAF), Institute of Virology and Microbiology, Witten/Herdecke University, Witten, Germany,Ecole Normale Supérieure de Lyon, Lyon, France
| | - Chin Leng Tan
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany,Clinical Cooperation Unit Neuroimmunology and Brain Tumor Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Theresa E. Schäfer
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Na Kang
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Claudia R. Ball
- Department of Translational Medical Oncology, National Center for Tumor Diseases Dresden (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany,Center for Personalized Oncology, National Center for Tumor Diseases (NCT) Dresden and University Hospital Carl Gustav Carus, Faculty of Medicine and Technische Universität Dresden, Dresden, Germany
| | - Jonas Leichsenring
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany,Institut für Pathologie, Zytologie und molekulare Diagnostik, Regiomed Klinikum Coburg, Coburg, Germany
| | | | - Lars Kaderali
- Institute for Bioinformatics, University Medicine Greifswald, Greifswald, Germany
| | - Dirk Jäger
- Clinical Cooperation Unit Applied Tumor Immunity, German Cancer Research Center (DKFZ), Heidelberg, Germany,Department of Medical Oncology, University Hospital Heidelberg, Heidelberg, Germany and National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany
| | - Guy Ungerechts
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany,Department of Medical Oncology, University Hospital Heidelberg, Heidelberg, Germany and National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany
| | - Christine E. Engeland
- Clinical Cooperation Unit Virotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany,Faculty of Health, School of Medicine, Center for Biomedical Research and Education (ZBAF), Institute of Virology and Microbiology, Witten/Herdecke University, Witten, Germany,Department of Medical Oncology, University Hospital Heidelberg, Heidelberg, Germany and National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany,*Correspondence: Christine E. Engeland, ;
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Delic M, Boeswald V, Goepfert K, Pabst P, Moehler M. In vitro Characterization of Enhanced Human Immune Responses by GM-CSF Encoding HSV-1-Induced Melanoma Cells. Onco Targets Ther 2022; 15:1291-1307. [PMID: 36310770 PMCID: PMC9606445 DOI: 10.2147/ott.s350136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 09/23/2022] [Indexed: 01/24/2023] Open
Abstract
PURPOSE We studied the innate and adaptive immune response against melanoma cells after JS-1 (wild-type herpes simplex virus 1, wt HSV-1) or Talimogene laherparepvec (T-VEC) infection and evaluated the antitumoral efficacy in human melanoma cells. We analyzed the putative synergistic biological and immunological effects of JS-1 or T-VEC combined with cytostatic drugs in human tumor and immune cells. T-VEC is a genetically modified strain of HSV-1. Genetic modifications (insertion of the granulocyte-macrophage colony-stimulating factor (GM-CSF) gene) were made to attenuate the virus and increase selectivity for cancer cells. In addition to the direct oncolytic effect, we investigated the immune stimulatory effects of T-VEC by comparing it with JS-1. JS-1 is identical T-VEC except for the inserted GM-CSF gene. MATERIALS AND METHODS We analyzed the effects of T-VEC and JS-1 with cytostatic drugs in human tumor-immune cell coculture experiments. After coculture, the surface markers CD80, CD83 and CD86 were measured by fluorescence-activated cell sorting and the cytokines, interleukin (IL)-2, IL-6, tumor necrosis factor (TNF)-α and GM-CSF, by enzyme-linked immunosorbent assays. Furthermore, we analyzed the potential of the viruses to induce T cell activation, measured on the basis of CD4, CD8 and CD69. Analysis of these markers and cytokines allows for conclusions to be drawn concerning the maturation of dendritic cells (DCs) and the immunostimulatory effects of the treatment. RESULTS We documented increased activation of human cytotoxic T lymphocytes after infection by both HSV-1 strains and treatment with cytostatic drugs without significant differences between T-VEC and JS-1. CONCLUSION We demonstrated an immune response as a result of infection with both viruses, but T-VEC was in vitro not stronger than JS-1. The immunostimulatory effects of the viruses could be partially increased by chemotherapy, providing a rationale for future preclinical studies designed to explore T-VEC in combined regimens.
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Affiliation(s)
- Maike Delic
- University Medical Center of the Johannes Gutenberg University Mainz, 1st Department of Internal Medicine, Mainz, Germany,Correspondence: Maike Delic, University Medical Center of the Johannes Gutenberg University Mainz, 1st Department of Internal Medicine, Langenbeckstrasse 1, Mainz, 55131, Germany, Tel +49 6131 179803, Fax +49 6131 179657, Email
| | - Veronika Boeswald
- University Medical Center of the Johannes Gutenberg University Mainz, 1st Department of Internal Medicine, Mainz, Germany
| | - Katrin Goepfert
- University Medical Center of the Johannes Gutenberg University Mainz, 1st Department of Internal Medicine, Mainz, Germany
| | - Petra Pabst
- University Medical Center of the Johannes Gutenberg University Mainz, 1st Department of Internal Medicine, Mainz, Germany
| | - Markus Moehler
- University Medical Center of the Johannes Gutenberg University Mainz, 1st Department of Internal Medicine, Mainz, Germany
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Revisiting the melanomagenic pathways and current therapeutic approaches. Mol Biol Rep 2022; 49:9651-9671. [DOI: 10.1007/s11033-022-07412-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 03/22/2022] [Indexed: 01/10/2023]
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Oncolytic measles vaccines encoding PD-1 and PD-L1 checkpoint blocking antibodies to increase tumor-specific T cell memory. Mol Ther Oncolytics 2022; 24:43-58. [PMID: 34977341 PMCID: PMC8693420 DOI: 10.1016/j.omto.2021.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/27/2021] [Indexed: 12/12/2022] Open
Abstract
PD-1/PD-L1 checkpoint blockade has achieved unprecedented success in cancer immunotherapy. Nevertheless, many immune-excluded tumors are resistant to therapy. Combination with oncolytic virotherapy may overcome resistance by inducing acute inflammation, immune cell recruitment, and remodeling of the tumor immune environment. Here, we assessed the combination of oncolytic measles vaccine (MV) vectors and PD-1/PD-L1 blockade. In the MC38cea model of measles virus oncolysis, MV combined with anti-PD-1 and MV vectors encoding anti-PD-1 or anti-PD-L1 antibodies achieved modest survival benefits compared with control MV or vectors encoding the antibody constant regions only. Analyses of tumor samples and tumor-draining lymph nodes revealed slight increases in intratumoral T cell effector cytokines as well as a shift toward an effector memory phenotype in the T cell compartment. Importantly, increased IFN-γ recall responses were observed in tumor rechallenge experiments with mice in complete tumor remission after treatment with MV encoding anti-PD-1 or anti-PD-L1 compared with control MV. These results prompted us to generate MV encoding the clinically approved agents pembrolizumab and nivolumab. Previously, we have generated MV encoding atezolizumab. We demonstrated the functionality of the novel vectors in vitro. We envision these vectors as therapeutics that induce and support durable anti-tumor immune memory.
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Lin W, Cai XD. Current Strategies for Cancer Cell-Derived Extracellular Vesicles for Cancer Therapy. Front Oncol 2021; 11:758884. [PMID: 34804956 PMCID: PMC8602829 DOI: 10.3389/fonc.2021.758884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 10/14/2021] [Indexed: 12/15/2022] Open
Abstract
Cancer cell-derived extracellular vesicles (CEVs), a novel type of therapeutic agent in cancer treatment, can be prepared from the autocrine secretion of various cancer cells, the direct extraction of cancer cells and the combination of cancer cell-derived membranes with advanced materials. With various bioactive molecules, exosomes are produced by cells for intercellular communication. Although cancer cell-derived exosomes are known to inhibit tumor apoptosis and promote the progression of cancer, researchers have developed various innovative strategies to prepare anti-tumor vesicles from cancer cells. With current strategies for anti-tumor vesicles, four different kinds of CEVs are classified including irradiated CEVs, advanced materials combined CEVs, chemotherapeutic drugs loaded CEVs and genetically engineered CEVs. In this way, CEVs can not only be the carriers for anti-tumor drugs to the target tumor area but also act as immune-active agents. Problems raised in the strategies mainly concerned with the preparation, efficacy and application. In this review, we classified and summarized the current strategies for utilizing the anti-tumor potential of CEVs. Additionally, the challenges and the prospects of this novel agent have been discussed.
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Affiliation(s)
- Weijian Lin
- Department of Oncology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xing-Dong Cai
- Department of Respiratory, The First Affiliated Hospital of Jinan University, Guangzhou, China
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Virotherapy in Germany-Recent Activities in Virus Engineering, Preclinical Development, and Clinical Studies. Viruses 2021; 13:v13081420. [PMID: 34452286 PMCID: PMC8402873 DOI: 10.3390/v13081420] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 02/06/2023] Open
Abstract
Virotherapy research involves the development, exploration, and application of oncolytic viruses that combine direct killing of cancer cells by viral infection, replication, and spread (oncolysis) with indirect killing by induction of anti-tumor immune responses. Oncolytic viruses can also be engineered to genetically deliver therapeutic proteins for direct or indirect cancer cell killing. In this review—as part of the special edition on “State-of-the-Art Viral Vector Gene Therapy in Germany”—the German community of virotherapists provides an overview of their recent research activities that cover endeavors from screening and engineering viruses as oncolytic cancer therapeutics to their clinical translation in investigator-initiated and sponsored multi-center trials. Preclinical research explores multiple viral platforms, including new isolates, serotypes, or fitness mutants, and pursues unique approaches to engineer them towards increased safety, shielded or targeted delivery, selective or enhanced replication, improved immune activation, delivery of therapeutic proteins or RNA, and redirecting antiviral immunity for cancer cell killing. Moreover, several oncolytic virus-based combination therapies are under investigation. Clinical trials in Germany explore the safety and potency of virotherapeutics based on parvo-, vaccinia, herpes, measles, reo-, adeno-, vesicular stomatitis, and coxsackie viruses, including viruses encoding therapeutic proteins or combinations with immune checkpoint inhibitors. These research advances represent exciting vantage points for future endeavors of the German virotherapy community collectively aimed at the implementation of effective virotherapeutics in clinical oncology.
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Zhang Y, Li Y, Chen K, Qian L, Wang P. Oncolytic virotherapy reverses the immunosuppressive tumor microenvironment and its potential in combination with immunotherapy. Cancer Cell Int 2021; 21:262. [PMID: 33985527 PMCID: PMC8120729 DOI: 10.1186/s12935-021-01972-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023] Open
Abstract
It has been intensively reported that the immunosuppressive tumor microenvironment (TME) results in tumor resistance to immunotherapy, especially immune checkpoint blockade and chimeric T cell antigen therapy. As an emerging therapeutic agent, oncolytic viruses (OVs) can specifically kill malignant cells and modify immune and non-immune TME components through their intrinsic properties or genetically incorporated with TME regulators. Strategies of manipulating OVs against the immunosuppressive TME include serving as a cancer vaccine, expressing proinflammatory factors and immune checkpoint inhibitors, and regulating nonimmune stromal constituents. In this review, we summarized the mechanisms and applications of OVs against the immunosuppressive TME, and strategies of OVs in combination with immunotherapy. We also introduced future directions to achieve efficient clinical translation including optimization of preclinical models that simulate the human TME and achieving systemic delivery of OVs.
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Affiliation(s)
- Yalei Zhang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ye Li
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China
| | - Kun Chen
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ling Qian
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Peng Wang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
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Lin W, Zhao Y, Zhong L. Current strategies of virotherapy in clinical trials for cancer treatment. J Med Virol 2021; 93:4668-4692. [PMID: 33738818 DOI: 10.1002/jmv.26947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/12/2021] [Accepted: 03/15/2021] [Indexed: 12/19/2022]
Abstract
As a novel immune-active agent for cancer treatment, viruses have the ability of infecting and replicating in tumor cells. The safety and efficacy of viruses has been tested and confirmed in preclinical and clinical trials. In the last decade, virotherapy has been adopted as a monotherapy or combined therapy with immunotherapy, chemotherapy, or radiotherapy, showing promising outcomes against cancer. In this review, the current strategies of viruses used in clinical trials are classified and described. Besides this, the challenge and future prospects of virotherapy in the management for cancer patients are discussed in this review.
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Affiliation(s)
- Weijian Lin
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, China
| | - Yongxiang Zhao
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, China
| | - Liping Zhong
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, China
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Angelova A, Ferreira T, Bretscher C, Rommelaere J, Marchini A. Parvovirus-Based Combinatorial Immunotherapy: A Reinforced Therapeutic Strategy against Poor-Prognosis Solid Cancers. Cancers (Basel) 2021; 13:342. [PMID: 33477757 PMCID: PMC7832409 DOI: 10.3390/cancers13020342] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 02/08/2023] Open
Abstract
Resistance to anticancer treatments poses continuing challenges to oncology researchers and clinicians. The underlying mechanisms are complex and multifactorial. However, the immunologically "cold" tumor microenvironment (TME) has recently emerged as one of the critical players in cancer progression and therapeutic resistance. Therefore, TME modulation through induction of an immunological switch towards inflammation ("warming up") is among the leading approaches in modern oncology. Oncolytic viruses (OVs) are seen today not merely as tumor cell-killing (oncolytic) agents, but also as cancer therapeutics with multimodal antitumor action. Due to their intrinsic or engineered capacity for overcoming immune escape mechanisms, warming up the TME and promoting antitumor immune responses, OVs hold the potential for creating a proinflammatory background, which may in turn facilitate the action of other (immunomodulating) drugs. The latter provides the basis for the development of OV-based immunostimulatory anticancer combinations. This review deals with the smallest among all OVs, the H-1 parvovirus (H-1PV), and focuses on H-1PV-based combinatorial approaches, whose efficiency has been proven in preclinical and/or clinical settings. Special focus is given to cancer types with the most devastating impact on life expectancy that urgently call for novel therapies.
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Affiliation(s)
- Assia Angelova
- German Cancer Research Center (DKFZ), Research Program Infection, Inflammation and Cancer, Clinical Cooperation Unit Virotherapy, Im Neuenheimer Feld 242, 69120 Heidelberg, Germany;
| | - Tiago Ferreira
- German Cancer Research Center (DKFZ), Laboratory of Oncolytic-Virus-Immunotherapeutics (LOVIT), Im Neuenheimer Feld 242, 69120 Heidelberg, Germany; (T.F.); (C.B.); (A.M.)
| | - Clemens Bretscher
- German Cancer Research Center (DKFZ), Laboratory of Oncolytic-Virus-Immunotherapeutics (LOVIT), Im Neuenheimer Feld 242, 69120 Heidelberg, Germany; (T.F.); (C.B.); (A.M.)
| | - Jean Rommelaere
- German Cancer Research Center (DKFZ), Research Program Infection, Inflammation and Cancer, Clinical Cooperation Unit Virotherapy, Im Neuenheimer Feld 242, 69120 Heidelberg, Germany;
| | - Antonio Marchini
- German Cancer Research Center (DKFZ), Laboratory of Oncolytic-Virus-Immunotherapeutics (LOVIT), Im Neuenheimer Feld 242, 69120 Heidelberg, Germany; (T.F.); (C.B.); (A.M.)
- Luxembourg Institute of Health (LIH), Laboratory of Oncolytic-Virus-Immunotherapeutics (LOVIT), 84 rue Val Fleuri, L-1526 Luxembourg, Luxembourg
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Ai L, Chen J, Yan H, He Q, Luo P, Xu Z, Yang X. Research Status and Outlook of PD-1/PD-L1 Inhibitors for Cancer Therapy. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:3625-3649. [PMID: 32982171 PMCID: PMC7490077 DOI: 10.2147/dddt.s267433] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/09/2020] [Indexed: 12/14/2022]
Abstract
PD-1/PD-L1 inhibitors are a group of immune checkpoint inhibitors as front-line treatment of multiple types of cancer. However, the serious immune-related adverse reactions limited the clinical application of PD-1/PD-L1 monoclonal antibodies, despite the promising curative effects. Therefore, it is urgent to develop novel inhibitors, such as small molecules, peptides or macrocycles, targeting the PD-1/PD-L1 axis to meet the increasing clinical demands. Our review discussed the mechanism of action of PD-1/PD-L1 inhibitors and presented clinical trials of currently approved PD-1/PD-L1 targeted drugs and the incidence of related adverse reactions, helping clinicians pay more attention to them, better formulate their intervention and resolution strategies. At last, some new inhibitors whose patent have been published are listed, which provide development ideas and judgment basis for the efficacy and safety of novel PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Leilei Ai
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jian Chen
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Hao Yan
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qiaojun He
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Peihua Luo
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Zhifei Xu
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaochun Yang
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
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Hartley A, Kavishwar G, Salvato I, Marchini A. A Roadmap for the Success of Oncolytic Parvovirus-Based Anticancer Therapies. Annu Rev Virol 2020; 7:537-557. [PMID: 32600158 DOI: 10.1146/annurev-virology-012220-023606] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Autonomous rodent protoparvoviruses (PVs) are promising anticancer agents due to their excellent safety profile, natural oncotropism, and oncosuppressive activities. Viral infection can trigger immunogenic cell death, activating the immune system against the tumor. However, the efficacy of this treatment in recent clinical trials is moderate compared with results seen in preclinical work. Various strategies have been employed to improve the anticancer activities of oncolytic PVs, including development of second-generation parvoviruses with enhanced oncolytic and immunostimulatory activities and rational combination of PVs with other therapies. Understanding the cellular factors involved in the PV life cycle is another important area of investigation. Indeed, these studies may lead to the identification of biomarkers that would allow a more personalized use of PV-based therapies. This review focuses on this work and the challenges that still need to be overcome to move PVs forward into clinical practice as an effective therapeutic option for cancer patients.
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Affiliation(s)
- Anna Hartley
- Laboratory of Oncolytic Virus Immuno-Therapeutics, German Cancer Research Center, 69120 Heidelberg, Germany;
| | - Gayatri Kavishwar
- Laboratory of Oncolytic Virus Immuno-Therapeutics, German Cancer Research Center, 69120 Heidelberg, Germany;
| | - Ilaria Salvato
- Laboratory of Oncolytic Virus Immuno-Therapeutics, Luxembourg Institute of Health, L-1526 Luxembourg, Luxembourg;
| | - Antonio Marchini
- Laboratory of Oncolytic Virus Immuno-Therapeutics, German Cancer Research Center, 69120 Heidelberg, Germany; .,Laboratory of Oncolytic Virus Immuno-Therapeutics, Luxembourg Institute of Health, L-1526 Luxembourg, Luxembourg;
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