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Agrawal K, Asthana S, Kumar D. Role of Oxidative Stress in Metabolic Reprogramming of Brain Cancer. Cancers (Basel) 2023; 15:4920. [PMID: 37894287 PMCID: PMC10605619 DOI: 10.3390/cancers15204920] [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: 08/27/2023] [Revised: 09/29/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023] Open
Abstract
Brain cancer is known as one of the deadliest cancers globally. One of the causative factors is the imbalance between oxidative and antioxidant activities in the body, which is referred to as oxidative stress (OS). As part of regular metabolism, oxygen is reduced by electrons, resulting in the creation of numerous reactive oxygen species (ROS). Inflammation is intricately associated with the generation of OS, leading to the increased production and accumulation of reactive oxygen and nitrogen species (RONS). Glioma stands out as one of the most common malignant tumors affecting the central nervous system (CNS), characterized by changes in the redox balance. Brain cancer cells exhibit inherent resistance to most conventional treatments, primarily due to the distinctive tumor microenvironment. Oxidative stress (OS) plays a crucial role in the development of various brain-related malignancies, such as glioblastoma multiforme (GBM) and medulloblastoma, where OS significantly disrupts the normal homeostasis of the brain. In this review, we provide in-depth descriptions of prospective targets and therapeutics, along with an assessment of OS and its impact on brain cancer metabolism. We also discuss targeted therapies.
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Affiliation(s)
- Kirti Agrawal
- School of Health Sciences and Technology (SoHST), UPES, Dehradun 248007, India
| | - Shailendra Asthana
- Translational Health Science and Technology Institute (THSTI), Faridabad 121001, India
| | - Dhruv Kumar
- School of Health Sciences and Technology (SoHST), UPES, Dehradun 248007, India
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2
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Mamun AA, Uddin MS, Perveen A, Jha NK, Alghamdi BS, Jeandet P, Zhang HJ, Ashraf GM. Inflammation-targeted nanomedicine against brain cancer: From design strategies to future developments. Semin Cancer Biol 2022; 86:101-116. [PMID: 36084815 DOI: 10.1016/j.semcancer.2022.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 08/08/2022] [Accepted: 08/21/2022] [Indexed: 02/07/2023]
Abstract
Brain cancer is an aggressive type of cancer with poor prognosis. While the immune system protects against cancer in the early stages, the tumor exploits the healing arm of inflammatory reactions to accelerate its growth and spread. Various immune cells penetrate the developing tumor region, establishing a pro-inflammatory tumor milieu. Additionally, tumor cells may release chemokines and cytokines to attract immune cells and promote cancer growth. Inflammation and its associated mechanisms in the progression of cancer have been extensively studied in the majority of solid tumors, especially brain tumors. However, treatment of the malignant brain cancer is hindered by several obstacles, such as the blood-brain barrier, transportation inside the brain interstitium, inflammatory mediators that promote tumor growth and invasiveness, complications in administering therapies to tumor cells specifically, the highly invasive nature of gliomas, and the resistance to drugs. To resolve these obstacles, nanomedicine could be a potential strategy that has facilitated advancements in diagnosing and treating brain cancer. Due to the numerous benefits provided by their small size and other features, nanoparticles have been a prominent focus of research in the drug-delivery field. The purpose of this article is to discuss the role of inflammatory mediators and signaling pathways in brain cancer as well as the recent advances in understanding the nano-carrier approaches for enhancing drug delivery to the brain in the treatment of brain cancer.
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Affiliation(s)
- Abdullah Al Mamun
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong Special Administrative Region of China
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Asma Perveen
- Glocal School of Life Sciences, Glocal University, Mirzapur Pole, Saharanpur, Uttar Pradesh, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh 201310, India; Department of Biotechnology, School of Applied & Life Sciences, Uttaranchal University, Dehradun 248007, India
| | - Badrah S Alghamdi
- Department of Physiology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia; Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; The Neuroscience Research Unit, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Philippe Jeandet
- University of Reims Champagne-Ardenne, Research Unit, Induced Resistance and Plant Bioprotection, EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, PO Box 1039, 51687 Reims Cedex 2, France
| | - Hong-Jie Zhang
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong Special Administrative Region of China
| | - Ghulam Md Ashraf
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, University City, Sharjah 27272, United Arab Emirates.
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3
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Tian Y, Xie D, Yang L. Engineering strategies to enhance oncolytic viruses in cancer immunotherapy. Signal Transduct Target Ther 2022; 7:117. [PMID: 35387984 PMCID: PMC8987060 DOI: 10.1038/s41392-022-00951-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Oncolytic viruses (OVs) are emerging as potentially useful platforms in treatment methods for patients with tumors. They preferentially target and kill tumor cells, leaving healthy cells unharmed. In addition to direct oncolysis, the essential and attractive aspect of oncolytic virotherapy is based on the intrinsic induction of both innate and adaptive immune responses. To further augment this efficacious response, OVs have been genetically engineered to express immune regulators that enhance or restore antitumor immunity. Recently, combinations of OVs with other immunotherapies, such as immune checkpoint inhibitors (ICIs), chimeric antigen receptors (CARs), antigen-specific T-cell receptors (TCRs) and autologous tumor-infiltrating lymphocytes (TILs), have led to promising progress in cancer treatment. This review summarizes the intrinsic mechanisms of OVs, describes the optimization strategies for using armed OVs to enhance the effects of antitumor immunity and highlights rational combinations of OVs with other immunotherapies in recent preclinical and clinical studies.
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Affiliation(s)
- Yaomei Tian
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China.,College of Bioengineering, Sichuan University of Science & Engineering, No. 519, Huixing Road, 643000, Zigong, Sichuan, People's Republic of China
| | - Daoyuan Xie
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China
| | - Li Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, No. 17, Section 3, South Renmin Road, 610041, Chengdu, Sichuan, People's Republic of China.
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4
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Ye Z, Ai X, Zhao L, Fei F, Wang P, Zhou S. Phenotypic plasticity of myeloid cells in glioblastoma development, progression, and therapeutics. Oncogene 2021; 40:6059-6070. [PMID: 34556813 DOI: 10.1038/s41388-021-02010-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 08/16/2021] [Accepted: 09/06/2021] [Indexed: 02/08/2023]
Abstract
Glioblastoma (GBM) is the most common and malignant type of intracranial tumors with poor prognosis. Accumulating evidence suggests that phenotypic alterations of infiltrating myeloid cells in the tumor microenvironment are important for GBM progression. Conventional tumor immunotherapy commonly targets T-cells, while innate immunity as a therapeutic target is an emerging field. Targeting infiltrating myeloid cells that induce immune suppression in the TME provides a novel direction to improve the prognosis of patients with GBM. The factors released by tumor cells recruit myeloid cells into tumor bed and reprogram infiltrating myeloid cells into immunostimulatory/immunosuppressive phenotypes. Reciprocally, infiltrating myeloid cells, especially microglia/macrophages, regulate GBM progression and affect therapeutic efficacy. Herein, we revisited biological characteristics and functions of infiltrating myeloid cells and discussed the recent advances in immunotherapies targeting infiltrating myeloid cells in GBM. With an evolving understanding of the complex interactions between infiltrating myeloid cells and tumor cells in the tumor microenvironment, we will expand novel immunotherapeutic regimens targeting infiltrating myeloid cells in GBM treatment and improve the outcomes of GBM patients.
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Affiliation(s)
- Zengpanpan Ye
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second Hospital and Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Xiaolin Ai
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second Hospital and Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Linjie Zhao
- Division of Regenerative Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Fan Fei
- Department of Neurosurgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital; School of Medicine, University of Electronic Science and Technology of China, No.32 West Second Section First Ring Road, Chengdu, 610072, Sichuan, China.
| | - Ping Wang
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second Hospital and Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, P. R. China.
| | - Shengtao Zhou
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second Hospital and Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, P. R. China.
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5
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Agliardi G, Liuzzi AR, Hotblack A, De Feo D, Núñez N, Stowe CL, Friebel E, Nannini F, Rindlisbacher L, Roberts TA, Ramasawmy R, Williams IP, Siow BM, Lythgoe MF, Kalber TL, Quezada SA, Pule MA, Tugues S, Straathof K, Becher B. Intratumoral IL-12 delivery empowers CAR-T cell immunotherapy in a pre-clinical model of glioblastoma. Nat Commun 2021; 12:444. [PMID: 33469002 PMCID: PMC7815781 DOI: 10.1038/s41467-020-20599-x] [Citation(s) in RCA: 133] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 12/11/2020] [Indexed: 01/29/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive form of primary brain cancer, for which effective therapies are urgently needed. Chimeric antigen receptor (CAR)-based immunotherapy represents a promising therapeutic approach, but it is often impeded by highly immunosuppressive tumor microenvironments (TME). Here, in an immunocompetent, orthotopic GBM mouse model, we show that CAR-T cells targeting tumor-specific epidermal growth factor receptor variant III (EGFRvIII) alone fail to control fully established tumors but, when combined with a single, locally delivered dose of IL-12, achieve durable anti-tumor responses. IL-12 not only boosts cytotoxicity of CAR-T cells, but also reshapes the TME, driving increased infiltration of proinflammatory CD4+ T cells, decreased numbers of regulatory T cells (Treg), and activation of the myeloid compartment. Importantly, the immunotherapy-enabling benefits of IL-12 are achieved with minimal systemic effects. Our findings thus show that local delivery of IL-12 may be an effective adjuvant for CAR-T cell therapy for GBM.
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Affiliation(s)
- Giulia Agliardi
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Anna Rita Liuzzi
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland
| | - Alastair Hotblack
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Donatella De Feo
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland
| | - Nicolás Núñez
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland
| | - Cassandra L Stowe
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Ekaterina Friebel
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland
| | - Francesco Nannini
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Lukas Rindlisbacher
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland
| | - Thomas A Roberts
- Centre for Advanced Biomedical Imaging (CABI), University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Rajiv Ramasawmy
- Centre for Advanced Biomedical Imaging (CABI), University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Iwan P Williams
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Bernard M Siow
- Centre for Advanced Biomedical Imaging (CABI), University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
- The Francis Crick Institute, NW1 1AT, London, UK
| | - Mark F Lythgoe
- Centre for Advanced Biomedical Imaging (CABI), University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Tammy L Kalber
- Centre for Advanced Biomedical Imaging (CABI), University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Sergio A Quezada
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Martin A Pule
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK
| | - Sonia Tugues
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland
| | - Karin Straathof
- Research Department of Hematology, Cancer Institute, University College London, Paul O'Gorman Building, WC1E 6DD, London, UK.
- UCL Great Ormond Street Institute of Child Health Biomedical Research Centre, WC1N 1EH, London, UK.
| | - Burkhard Becher
- Institute of Experimental Immunology, University of Zurich, 8057, Zurich, Switzerland.
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6
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Liu J, Toy R, Vantucci C, Pradhan P, Zhang Z, Kuo KM, Kubelick KP, Huo D, Wen J, Kim J, Lyu Z, Dhal S, Atalis A, Ghosh-Choudhary SK, Devereaux EJ, Gumbart JC, Xia Y, Emelianov SY, Willett NJ, Roy K. Bifunctional Janus Particles as Multivalent Synthetic Nanoparticle Antibodies (SNAbs) for Selective Depletion of Target Cells. NANO LETTERS 2021; 21:875-886. [PMID: 33395313 PMCID: PMC8176937 DOI: 10.1021/acs.nanolett.0c04833] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Monoclonal antibodies (mAb) have had a transformative impact on treating cancers and immune disorders. However, their use is limited by high development time and monetary cost, manufacturing complexities, suboptimal pharmacokinetics, and availability of disease-specific targets. To address some of these challenges, we developed an entirely synthetic, multivalent, Janus nanotherapeutic platform, called Synthetic Nanoparticle Antibodies (SNAbs). SNAbs, with phage-display-identified cell-targeting ligands on one "face" and Fc-mimicking ligands on the opposite "face", were synthesized using a custom, multistep, solid-phase chemistry method. SNAbs efficiently targeted and depleted myeloid-derived immune-suppressor cells (MDSCs) from mouse-tumor and rat-trauma models, ex vivo. Systemic injection of MDSC-targeting SNAbs efficiently depleted circulating MDSCs in a mouse triple-negative breast cancer model, enabling enhanced T cell and Natural Killer cell infiltration into tumors. Our results demonstrate that SNAbs are a versatile and effective functional alternative to mAbs, with advantages of a plug-and-play, cell-free manufacturing process, and high-throughput screening (HTS)-enabled library of potential targeting ligands.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jianguo Wen
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60517, United States
| | | | | | | | | | - Shohini K Ghosh-Choudhary
- School of Medicine, University of Pittsburgh, 3550 Terrace St., Pittsburgh, Pennsylvania 15213, United States
| | - Emily J Devereaux
- Orthopaedics Department, Emory University, Atlanta, Georgia 30322, United States
- Research Service, Atlanta VA Medical Center, Decatur, Georgia 30033, United States
| | | | | | | | - Nick J Willett
- Orthopaedics Department, Emory University, Atlanta, Georgia 30322, United States
- Research Service, Atlanta VA Medical Center, Decatur, Georgia 30033, United States
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7
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Nguyen KG, Vrabel MR, Mantooth SM, Hopkins JJ, Wagner ES, Gabaldon TA, Zaharoff DA. Localized Interleukin-12 for Cancer Immunotherapy. Front Immunol 2020; 11:575597. [PMID: 33178203 PMCID: PMC7593768 DOI: 10.3389/fimmu.2020.575597] [Citation(s) in RCA: 195] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/08/2020] [Indexed: 12/30/2022] Open
Abstract
Interleukin-12 (IL-12) is a potent, pro-inflammatory type 1 cytokine that has long been studied as a potential immunotherapy for cancer. Unfortunately, IL-12's remarkable antitumor efficacy in preclinical models has yet to be replicated in humans. Early clinical trials in the mid-1990's showed that systemic delivery of IL-12 incurred dose-limiting toxicities. Nevertheless, IL-12's pleiotropic activity, i.e., its ability to engage multiple effector mechanisms and reverse tumor-induced immunosuppression, continues to entice cancer researchers. The development of strategies which maximize IL-12 delivery to the tumor microenvironment while minimizing systemic exposure are of increasing interest. Diverse IL-12 delivery systems, from immunocytokine fusions to polymeric nanoparticles, have demonstrated robust antitumor immunity with reduced adverse events in preclinical studies. Several localized IL-12 delivery approaches have recently reached the clinical stage with several more at the precipice of translation. Taken together, localized delivery systems are supporting an IL-12 renaissance which may finally allow this potent cytokine to fulfill its considerable clinical potential. This review begins with a brief historical account of cytokine monotherapies and describes how IL-12 went from promising new cure to ostracized black sheep following multiple on-study deaths. The bulk of this comprehensive review focuses on developments in diverse localized delivery strategies for IL-12-based cancer immunotherapies. Advantages and limitations of different delivery technologies are highlighted. Finally, perspectives on how IL-12-based immunotherapies may be utilized for widespread clinical application in the very near future are offered.
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Affiliation(s)
- Khue G Nguyen
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - Maura R Vrabel
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - Siena M Mantooth
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - Jared J Hopkins
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - Ethan S Wagner
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - Taylor A Gabaldon
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - David A Zaharoff
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill and North Carolina State University, Raleigh, NC, United States
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8
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Lee JC, Mehdizadeh S, Smith J, Young A, Mufazalov IA, Mowery CT, Daud A, Bluestone JA. Regulatory T cell control of systemic immunity and immunotherapy response in liver metastasis. Sci Immunol 2020; 5:5/52/eaba0759. [PMID: 33008914 DOI: 10.1126/sciimmunol.aba0759] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 09/09/2020] [Indexed: 12/18/2022]
Abstract
Patients with cancer with liver metastasis demonstrate significantly worse outcomes than those without liver metastasis when treated with anti-PD-1 immunotherapy. The mechanism of liver metastases-induced reduction in systemic antitumor immunity is unclear. Using a dual-tumor immunocompetent mouse model, we found that the immune response to tumor antigen presence within the liver led to the systemic suppression of antitumor immunity. The immune suppression was antigen specific and associated with the coordinated activation of regulatory T cells (Tregs) and modulation of intratumoral CD11b+ monocytes. The dysfunctional immune state could not be reversed by anti-PD-1 monotherapy unless Treg cells were depleted (anti-CTLA-4) or destabilized (EZH2 inhibitor). Thus, this study provides a mechanistic understanding and rationale for adding Treg and CD11b+ monocyte targeting agents in combination with anti-PD-1 to treat patients with cancer with liver metastasis.
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Affiliation(s)
- James C Lee
- Division of Hematology and Oncology, University of California, San Francisco, San Francisco, CA 94143, USA. .,Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA.,Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA.,Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Sadaf Mehdizadeh
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA.,Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Jennifer Smith
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA.,Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Arabella Young
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA.,Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA.,QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia
| | - Ilgiz A Mufazalov
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA.,Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Cody T Mowery
- Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA.,Medical Scientist Training Program, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Adil Daud
- Division of Hematology and Oncology, University of California, San Francisco, San Francisco, CA 94143, USA.,Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.,Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA.,Parker Institute for Cancer Immunotherapy, San Francisco, CA 94129, USA
| | - Jeffrey A Bluestone
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA 94143, USA. .,Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA.,Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.,Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA.,Parker Institute for Cancer Immunotherapy, San Francisco, CA 94129, USA
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9
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Ding AS, Routkevitch D, Jackson C, Lim M. Targeting Myeloid Cells in Combination Treatments for Glioma and Other Tumors. Front Immunol 2019; 10:1715. [PMID: 31396227 PMCID: PMC6664066 DOI: 10.3389/fimmu.2019.01715] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/09/2019] [Indexed: 02/06/2023] Open
Abstract
Myeloid cells constitute a significant part of the immune system in the context of cancer, exhibiting both immunostimulatory effects, through their role as antigen presenting cells, and immunosuppressive effects, through their polarization to myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages. While they are rarely sufficient to generate potent anti-tumor effects on their own, myeloid cells have the ability to interact with a variety of immune populations to aid in mounting an appropriate anti-tumor immune response. Therefore, myeloid therapies have gained momentum as a potential adjunct to current therapies such as immune checkpoint inhibitors (ICIs), dendritic cell vaccines, oncolytic viruses, and traditional chemoradiation to enhance therapeutic response. In this review, we outline critical pathways involved in the recruitment of the myeloid population to the tumor microenvironment and in their polarization to immunostimulatory or immunosuppressive phenotypes. We also emphasize existing strategies of modulating myeloid recruitment and polarization to improve anti-tumor immune responses. We then summarize current preclinical and clinical studies that highlight treatment outcomes of combining myeloid targeted therapies with other immune-based and traditional therapies. Despite promising results from reports of limited clinical trials thus far, there remain challenges in optimally harnessing the myeloid compartment as an adjunct to enhancing anti-tumor immune responses. Further large Phase II and ultimately Phase III clinical trials are needed to elucidate the treatment benefit of combination therapies in the fight against cancer.
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Affiliation(s)
| | | | | | - Michael Lim
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, United States
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10
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Won WJ, Deshane JS, Leavenworth JW, Oliva CR, Griguer CE. Metabolic and functional reprogramming of myeloid-derived suppressor cells and their therapeutic control in glioblastoma. Cell Stress 2019; 3:47-65. [PMID: 31225500 PMCID: PMC6551710 DOI: 10.15698/cst2019.02.176] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Glioblastoma, also known as glioblastoma multi-forme, is the most common and deadliest form of high-grade malignant brain tumors with limited available treatments. Within the glioblastoma tumor microenvironment (TME), tumor cells, stromal cells, and infiltrating immune cells continuously interact and exchange signals through various secreted factors including cytokines, chemokines, growth factors, and metabolites. Simultaneously, they dynamically reprogram their metabolism according to environmental energy demands such as hypoxia and neo-vascularization. Such metabolic re-programming can determine fates and functions of tumor cells as well as immune cells. Ultimately, glioma cells in the TME transform immune cells to suppress anti-tumor immune cells such as T, natural killer (NK) cells, and dendritic cells (DC), and evade immune surveillance, and even to promote angiogenesis and tumor metastasis. Glioma-associated microglia/macrophages (GAMM) and myeloid-derived suppressor cells (MDSC) are most abundantly recruited and expanded myeloid lineage cells in glioblastoma TME and mainly lead to immunosuppression. In this review, of myeloid cells we will focus on MDSC as an important driver to induce immunosuppression in glioblastoma. Here, we review current literature on immunosuppressive functions and metabolic reprogramming of MDSCs in glioblastoma and discuss their metabolic pathways as potential therapeutic targets to improve current incurable glioblastoma treatment.
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Affiliation(s)
- Woong-Jai Won
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Jessy S Deshane
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Jianmei W Leavenworth
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Claudia R Oliva
- Free Radical and Radiation Biology Program, The University of Iowa, Iowa City, IA 52242, USA
| | - Corinne E Griguer
- Free Radical and Radiation Biology Program, The University of Iowa, Iowa City, IA 52242, USA
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11
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Peñaloza HF, Alvarez D, Muñoz-Durango N, Schultz BM, González PA, Kalergis AM, Bueno SM. The role of myeloid-derived suppressor cells in chronic infectious diseases and the current methodology available for their study. J Leukoc Biol 2018; 105:857-872. [PMID: 30480847 DOI: 10.1002/jlb.mr0618-233r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/07/2018] [Accepted: 10/30/2018] [Indexed: 12/23/2022] Open
Abstract
An effective pathogen has the ability to evade the immune response. The strategies used to achieve this may be based on the direct action of virulence factors or on the induction of host factors. Myeloid-derived suppressor cells (MDSCs) are immune cells with an incredible ability to suppress the inflammatory response, which makes them excellent targets to be exploited by pathogenic bacteria, viruses, or parasites. In this review, we describe the origin and suppressive mechanisms of MDSCs, as well as their role in chronic bacterial, viral, and parasitic infections, where their expansion seems to be essential in the chronicity of the disease. We also analyze the disadvantages of current MDSC depletion strategies and the different in vitro generation methods, which can be useful tools for the deeper study of these cells in the context of microbial infections.
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Affiliation(s)
- Hernán F Peñaloza
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Diana Alvarez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natalia Muñoz-Durango
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Bárbara M Schultz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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12
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Ranjan A, Wright S, Srivastava SK. Immune consequences of penfluridol treatment associated with inhibition of glioblastoma tumor growth. Oncotarget 2018; 8:47632-47641. [PMID: 28512255 PMCID: PMC5564593 DOI: 10.18632/oncotarget.17425] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 03/13/2017] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma is the most common and lethal brain tumor associated with only 12% median survival rate of patients. Despite the development of advanced surgical, radiation or use of combinations of anti-cancer drugs, treatment for glioblastoma patients is still a challenge. The major contributing factor in glioblastoma progression and resistive nature is its ability to evade the immune surveillance. Hence, modulating the immune system in glioblastoma tumors could be an important strategy for anticancer therapeutics. Penfluridol, an antipsychotic drug has been shown to have anti-cancer properties in our recently published studies. The present study evaluates the immune response of penfluridol in glioblastoma tumors. Our results demonstrated that penfluridol treatment significantly suppressed glioblastoma tumor growth. Our current results demonstrated about 72% suppression of myeloid derived suppressor cells (MDSCs) with penfluridol treatment in mouse bearing U87MG glioblastoma tumors. MDSCs are known to increase regulatory T cells (Treg), which are immunosuppressive in nature and suppresses M1 macrophages that are tumor suppressive in nature. Our results also showed suppression of regulatory T cells as well as elevation of M1 macrophages with penfluridol treatment by 58% and 57% respectively. Decrease in CCL4 as well as IFNγ with penfluridol treatment was also observed indicating decrease in overall tumor inflammation. This is the first report demonstrating immune modulations by penfluridol treatment associated with glioblastoma tumor growth suppression prompting further investigation to establish penfluridol as a treatment option for glioblastoma patients.
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Affiliation(s)
- Alok Ranjan
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Stephen Wright
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.,Departments of Internal Medicine and Biomedical Sciences, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Sanjay K Srivastava
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.,Department of Immunotherapeutics and Biotechnology, Texas Tech University Health Sciences Center, Abilene, TX 79106, USA
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13
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Brandenburg S, Turkowski K, Mueller A, Radev YT, Seidlitz S, Vajkoczy P. Myeloid cells expressing high level of CD45 are associated with a distinct activated phenotype in glioma. Immunol Res 2018; 65:757-768. [PMID: 28367602 DOI: 10.1007/s12026-017-8915-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Glioblastoma multiforme is characterized by high accumulation of microglia/macrophages. The function of these tumor-infiltrating myeloid cells is not sufficiently elucidated. Therefore, a better understanding of the precise immune cell composition and function in brain tumors is required. In rodent glioma models, two different myeloid cell populations exist, determined by the expression level of CD45, namely CD11b+CD45low and CD11b+CD45high. Previous analyses of cytokine and marker expression profiles were almost exclusively performed on the entire myeloid cell fraction. Consequently, described pro- and anti-tumoral characteristics were not assigned to the evident subpopulations. In the present study, we used a syngeneic glioblastoma mouse model and subsequent flow cytometric analyses to demonstrate the distinct properties of CD11b+CD45high and the CD11b+CD45low cells. First, the majority of CD11b+CD45high cells expressed high level of GR1 and around 6% of IL10 representing in part features of myeloid-derived suppressor cells, while the CD11b+CD45low fraction displayed no upregulation of these molecules. Second, we detected that specifically the CD11b+CD45high population showed antigen-presenting, co-stimulatory, and inflammatory features. Here, we identified up to 80% of MHCII and approximately 50% of CD86 and TNFα-expressing cells. Investigation of MHCI and CD80 revealed a moderate upregulation. By contrast, in the CD11b+CD45low cell fraction, merely MHCII and TNFα were marginally overexpressed. In summary, these data emphasize the specific phenotype of CD11b+CD45high cells in glioma with suppressive as well as pro-inflammatory characteristics whereas the CD11b+CD45low cells were almost unaffected. Hence, primarily, the subpopulation consisting of CD45high-expressing cells is activated by the tumor and should be considered as therapeutic target.
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Affiliation(s)
- Susan Brandenburg
- Department of Experimental Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kati Turkowski
- Department of Experimental Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Annett Mueller
- Department of Experimental Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Yordan T Radev
- Department of Experimental Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sabine Seidlitz
- Department of Experimental Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Peter Vajkoczy
- Department of Experimental Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany. .,Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany.
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14
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The Process and Regulatory Components of Inflammation in Brain Oncogenesis. Biomolecules 2017; 7:biom7020034. [PMID: 28346397 PMCID: PMC5485723 DOI: 10.3390/biom7020034] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/09/2017] [Accepted: 03/22/2017] [Indexed: 12/17/2022] Open
Abstract
Central nervous system tumors comprising the primary cancers and brain metastases remain the most lethal neoplasms and challenging to treat. Substantial evidence points to a paramount role for inflammation in the pathology leading to gliomagenesis, malignant progression and tumor aggressiveness in the central nervous system (CNS) microenvironment. This review summarizes the salient contributions of oxidative stress, interleukins, tumor necrosis factor-α(TNF-α), cyclooxygenases, and transcription factors such as signal transducer and activator of transcription 3 (STAT3) and nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-κB) and the associated cross-talks to the inflammatory signaling in CNS cancers. The roles of reactive astrocytes, tumor associated microglia and macrophages, metabolic alterations, microsatellite instability, O6-methylguanine DNA methyltransferase (MGMT) DNA repair and epigenetic alterations mediated by the isocitrate dehydrogenase 1 (IDH1) mutations have been discussed. The inflammatory pathways with relevance to the brain cancer treatments have been highlighted.
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15
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In vitro exploration of a myeloid-derived suppressor cell line as vehicle for cancer gene therapy. Cancer Gene Ther 2016; 24:149-155. [PMID: 27857057 DOI: 10.1038/cgt.2016.60] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 12/12/2022]
Abstract
Recent research indicates that cell-mediated gene therapy can be an interesting method to obtain intratumoral expression of therapeutic proteins. This paper explores the possibility of using transfected myeloid-derived suppressor cells (MDSCs), derived from a murine cell line, as cellular vehicles for transporting plasmid DNA (pDNA) encoding interleukin-12 (IL-12) to tumors. Transfecting these cells via electroporation caused massive cell death. This was not due to electroporation-induced cell damage, but was mainly the result of the intracellular presence of plasmids. In contrast, pDNA transfection using Lipofectamine 2000 (LF2000) did not result in a significant loss of viability. Differences in delivery mechanism may explain the distinctive effects on cell viability. Indeed, electroporation is expected to cause a rapid and massive influx of pDNA resulting in cytosolic pDNA levels that most likely surpass the activation threshold of the intracellular DNA sensors leading to cell death. In contrast, a more sustained intracellular release of the pDNA is expected with LF2000. After lipofection with LF2000, 56% of the MDSCs were transfected and transgene expression lasted for at least 24 h. Moreover, biologically relevant amounts of IL-12 were produced by the MDSCs after lipofection with an IL-12 encoding pDNA. In addition, IL-12 transfection caused a significant upregulation of CD80 and considerably reduced the immunosuppressive capacity of the MDSCs. IL-12-transfected MDSCs were still able to migrate to tumor cells, albeit that lipofection of the MDSCs seemed to slightly decrease their migration capacity.
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16
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Henning JD, Bonachea LA, Bunker CH, Patrick AL, Jenkins FJ. Human herpesvirus 8 infection contributes to a T helper 2 immune response in men from Tobago with prostate cancer. Int J Urol 2016; 24:64-68. [PMID: 27734534 DOI: 10.1111/iju.13243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 09/19/2016] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To compare the cytokine profile between human herpesvirus 8 seropositive and seronegative men with and without prostate cancer. METHODS The study sample was obtained from the Tobago Prostate Survey, an ongoing study of prostate cancer in the Caribbean island of Tobago. Participants in the study were recruited mostly by public service announcement and by word of mouth. For analyses of circulating levels of pro-inflammatory cytokines, participants with biopsy-confirmed prostate cancer (n = 79) were compared with control participants (n = 87). RESULTS Cytokine analyses showed a T helper 2 response with suppressed T helper 1 response in prostate cancer patients, as evidenced by significantly increased levels of interleukin-13 and reduced levels of interleukin-12p70. Herpesvirus 8 seropositive men showed significantly increased levels of interleukin-13 and interleukin-10. At logistic regression analyses, interleukin-12p70 predicted prostate cancer in 94.4% of human herpesvirus 8 seropositive men. CONCLUSIONS These findings show that prostate cancer elicits an antitumor, T helper 2 response with a suppressed T helper 1 response. Human herpesvirus 8 infection results in a similar immune response supporting the hypothesis that in Tobago, human herpesvirus 8 establishes a chronic infection that can contribute to an immune response favoring the formation and survival of prostate cancer.
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Affiliation(s)
- Jill D Henning
- Department of Biology, University of Pittsburgh at Johnstown, Johnstown, Pennsylvania, USA
| | - Luis A Bonachea
- Department of Biology, University of Pittsburgh at Johnstown, Johnstown, Pennsylvania, USA
| | - Clareann H Bunker
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Alan L Patrick
- Tobago Health Studies Office, Scarborough, Tobago, Trinidad and Tobago
| | - Frank J Jenkins
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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17
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Najac C, Chaumeil MM, Kohanbash G, Guglielmetti C, Gordon JW, Okada H, Ronen SM. Detection of inflammatory cell function using (13)C magnetic resonance spectroscopy of hyperpolarized [6-(13)C]-arginine. Sci Rep 2016; 6:31397. [PMID: 27507680 PMCID: PMC4979036 DOI: 10.1038/srep31397] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/19/2016] [Indexed: 01/11/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are highly prevalent inflammatory cells that play a key role in tumor development and are considered therapeutic targets. MDSCs promote tumor growth by blocking T-cell-mediated anti-tumoral immune response through depletion of arginine that is essential for T-cell proliferation. To deplete arginine, MDSCs express high levels of arginase, which catalyzes the breakdown of arginine into urea and ornithine. Here, we developed a new hyperpolarized (13)C probe, [6-(13)C]-arginine, to image arginase activity. We show that [6-(13)C]-arginine can be hyperpolarized, and hyperpolarized [(13)C]-urea production from [6-(13)C]-arginine is linearly correlated with arginase concentration in vitro. Furthermore we show that we can detect a statistically significant increase in hyperpolarized [(13)C]-urea production in MDSCs when compared to control bone marrow cells. This increase was associated with an increase in intracellular arginase concentration detected using a spectrophotometric assay. Hyperpolarized [6-(13)C]-arginine could therefore serve to image tumoral MDSC function and more broadly M2-like macrophages.
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Affiliation(s)
- Chloé Najac
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Myriam M. Chaumeil
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Gary Kohanbash
- Department of Neurological Surgery, University of Surgery, University of California San Francisco, San Francisco, CA, USA
| | | | - Jeremy W. Gordon
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Hideho Okada
- Department of Neurological Surgery, University of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Sabrina M. Ronen
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
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18
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Immunological Evasion in Glioblastoma. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7487313. [PMID: 27294132 PMCID: PMC4884578 DOI: 10.1155/2016/7487313] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 04/19/2016] [Indexed: 12/25/2022]
Abstract
Glioblastoma is the most aggressive tumor in Central Nervous System in adults. Among its features, modulation of immune system stands out. Although immune system is capable of detecting and eliminating tumor cells mainly by cytotoxic T and NK cells, tumor microenvironment suppresses an effective response through recruitment of modulator cells such as regulatory T cells, monocyte-derived suppressor cells, M2 macrophages, and microglia as well as secretion of immunomodulators including IL-6, IL-10, CSF-1, TGF-β, and CCL2. Other mechanisms that induce immunosuppression include enzymes as indolamine 2,3-dioxygenase. For this reason it is important to develop new therapies that avoid this immune evasion to promote an effective response against glioblastoma.
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19
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Dufait I, Schwarze JK, Liechtenstein T, Leonard W, Jiang H, Escors D, De Ridder M, Breckpot K. Ex vivo generation of myeloid-derived suppressor cells that model the tumor immunosuppressive environment in colorectal cancer. Oncotarget 2016; 6:12369-82. [PMID: 25869209 PMCID: PMC4494944 DOI: 10.18632/oncotarget.3682] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 03/11/2015] [Indexed: 12/27/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are a heterogeneous population of cells that accumulate in tumor-bearing subjects and which strongly inhibit anti-cancer immune responses. To study the biology of MDSC in colorectal cancer (CRC), we cultured bone marrow cells in conditioned medium from CT26 cells, which are genetically modified to secrete high levels of granulocyte-macrophage colony-stimulating factor. This resulted in the generation of high numbers of CD11b(+) Ly6G(+) granulocytic and CD11b(+) Ly6C(+) monocytic MDSC, which closely resemble those found within the tumor but not the spleen of CT26 tumor-bearing mice. Such MDSC potently inhibited T-cell responses in vitro, a process that could be reversed upon blocking of arginase-1 or inducible nitric oxide synthase (iNOS). We confirmed that inhibition of arginase-1 or iNOS in vivo resulted in the stimulation of cytotoxic T-cell responses. A delay in tumor growth was observed upon functional repression of both enzymes. These data confirm the role of MDSC as inhibitors of T-cell-mediated immune responses in CRC. Moreover, MDSC differentiated in vitro from bone marrow cells using conditioned medium of GM-CSF-secreting CT26 cells, represent a valuable platform to study/identify drugs that counteract MDSC activities.
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Affiliation(s)
- Inès Dufait
- UZ Brussel, Department of Radiotherapy, Vrije Universiteit Brussel, Brussels, Belgium.,Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Therese Liechtenstein
- Navarrabiomed-Fundaçion Miguel Servet, Immunomodulation Group, Pamplona, Spain.,Division of Infection and Immunity, University College London, London, UK
| | - Wim Leonard
- UZ Brussel, Department of Radiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Heng Jiang
- UZ Brussel, Department of Radiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - David Escors
- Navarrabiomed-Fundaçion Miguel Servet, Immunomodulation Group, Pamplona, Spain.,Division of Infection and Immunity, University College London, London, UK
| | - Mark De Ridder
- UZ Brussel, Department of Radiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
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20
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Baker GJ, Chockley P, Zamler D, Castro MG, Lowenstein PR. Natural killer cells require monocytic Gr-1(+)/CD11b(+) myeloid cells to eradicate orthotopically engrafted glioma cells. Oncoimmunology 2016; 5:e1163461. [PMID: 27471637 DOI: 10.1080/2162402x.2016.1163461] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 10/22/2022] Open
Abstract
Malignant gliomas are resistant to natural killer (NK) cell immune surveillance. However, the mechanisms used by these cancers to suppress antitumor NK cell activity remain poorly understood. We have recently reported on a novel mechanism of innate immune evasion characterized by the overexpression of the carbohydrate-binding protein galectin-1 by both mouse and rat malignant glioma. Here, we investigate the cytokine profile of galectin-1-deficient GL26 cells and describe the process by which these tumors are targeted by the early innate immune system in RAG1(-/-) and C57BL/6J mice. Our data reveal that galectin-1 knockdown in GL26 cells heightens their inflammatory status leading to the rapid recruitment of Gr-1(+)/CD11b(+) myeloid cells and NK1.1(+) NK cells into the brain tumor microenvironment, culminating in tumor clearance. We show that immunodepletion of Gr-1(+) myeloid cells in RAG1(-/-) mice permits the growth of galectin-1-deficient glioma despite the presence of NK cells, thus demonstrating an essential role for myeloid cells in the clearance of galectin-1-deficient glioma. Further characterization of tumor-infiltrating Gr-1(+)/CD11b(+) cells reveals that these cells also express CCR2 and Ly-6C, markers consistent with inflammatory monocytes. Our results demonstrate that Gr-1(+)/CD11b(+) myeloid cells, often referred to as myeloid-derived suppressor cells (MDSCs), are required for antitumor NK cell activity against galectin-1-deficient GL26 glioma. We conclude that glioma-derived galectin-1 represents an important factor in dictating the phenotypic behavior of monocytic Gr-1(+)/CD11b(+) myeloid cells. Galectin-1 suppression may be a valuable treatment approach for clinical glioma by promoting their innate immune-mediated recognition and clearance through the concerted effort of innate myeloid and lymphoid cell lineages.
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Affiliation(s)
- Gregory J Baker
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Peter Chockley
- Graduate Program in Immunology, University of Michigan Medical School , Ann Arbor, MI, USA
| | - Daniel Zamler
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Maria G Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Pedro R Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA
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21
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Hernandez-Alcoceba R, Poutou J, Ballesteros-Briones MC, Smerdou C. Gene therapy approaches against cancer using in vivo and ex vivo gene transfer of interleukin-12. Immunotherapy 2016; 8:179-98. [PMID: 26786809 DOI: 10.2217/imt.15.109] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
IL-12 is an immunostimulatory cytokine with strong antitumor properties. Systemic administration of IL-12 in cancer patients led to severe toxic effects, prompting the development of gene therapy vectors able to express this cytokine locally in tumors. Both nonviral and viral vectors have demonstrated a high antitumor efficacy in preclinical tumor models. Some of these vectors, including DNA electroporation, adenovirus and ex vivo transduced dendritic cells, were tested in patients, showing low toxicity and moderate antitumor efficacy. IL-12 activity can be potentiated by molecules with immunostimulatory, antiangiogenic or cytotoxic activity. These combination therapies are of clinical interest because they could lower the threshold for IL-12 efficacy, increasing the therapeutic potential of gene therapy and preventing the toxicity mediated by this cytokine.
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Affiliation(s)
- Ruben Hernandez-Alcoceba
- Division of Gene Therapy, CIMA, University of Navarra, Pamplona 31008 Spain.,Instituto de Investigación Sanitaria de Navarra, c/Irunlarrea 3, Pamplona 31008, Spain
| | - Joanna Poutou
- Division of Gene Therapy, CIMA, University of Navarra, Pamplona 31008 Spain.,Instituto de Investigación Sanitaria de Navarra, c/Irunlarrea 3, Pamplona 31008, Spain
| | - María Cristina Ballesteros-Briones
- Division of Gene Therapy, CIMA, University of Navarra, Pamplona 31008 Spain.,Instituto de Investigación Sanitaria de Navarra, c/Irunlarrea 3, Pamplona 31008, Spain
| | - Cristian Smerdou
- Division of Gene Therapy, CIMA, University of Navarra, Pamplona 31008 Spain.,Instituto de Investigación Sanitaria de Navarra, c/Irunlarrea 3, Pamplona 31008, Spain
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22
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Fernández A, Oliver L, Alvarez R, Fernández LE, Lee KP, Mesa C. Adjuvants and myeloid-derived suppressor cells: enemies or allies in therapeutic cancer vaccination. Hum Vaccin Immunother 2015; 10:3251-60. [PMID: 25483674 DOI: 10.4161/hv.29847] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Adjuvants are a critical but largely overlooked and poorly understood component included in vaccine formulations to stimulate and modulate the desired immune responses to an antigen. However, unlike in the protective infectious disease vaccines, adjuvants for cancer vaccines also need to overcome the effect of tumor-induced suppressive immune populations circulating in tumor-bearing individuals. Myeloid-derived suppressor cells (MDSC) are considered to be one of the key immunosuppressive populations that inhibit tumor-specific T cell responses in cancer patients. This review focuses on the different signals for the activation of the immune system induced by adjuvants, and the close relationship to the mechanisms of recruitment and activation of MDSC. This work explores the possibility that a cancer vaccine adjuvant may either strengthen or weaken the effect of tumor-induced MDSC, and the crucial need to address this in present and future cancer vaccines.
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Key Words
- APC, antigen-presenting cells
- ARG1, arginase 1
- CTL, cytotoxic T lymphocytes
- DC, dendritic cells
- G-MDSC, granulocytic MDSC
- GM-CSF, granulocyte macrophage colony-stimulating factor
- MDSC
- MDSC, myeloid-derived suppressor cells
- Mo-MDSC, monocytic MDSC
- NK, natural killer
- NOS2, inducible nitric oxide synthase
- TAM, tumor-associated macrophages
- TLR ligands
- TLR, Toll-like receptors
- Treg, regulatory T cells
- adjuvants
- cancer
- cytokines
- immunotherapy
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Affiliation(s)
- Audry Fernández
- a Immunobiology Division; Center of Molecular Immunology ; Havana , Cuba
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23
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Liechtenstein T, Perez-Janices N, Gato M, Caliendo F, Kochan G, Blanco-Luquin I, Van der Jeught K, Arce F, Guerrero-Setas D, Fernandez-Irigoyen J, Santamaria E, Breckpot K, Escors D. A highly efficient tumor-infiltrating MDSC differentiation system for discovery of anti-neoplastic targets, which circumvents the need for tumor establishment in mice. Oncotarget 2015; 5:7843-57. [PMID: 25151659 PMCID: PMC4202165 DOI: 10.18632/oncotarget.2279] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) exhibit potent immunosuppressive activities in cancer. MDSCs infiltrate tumors and strongly inhibit cancer-specific cytotoxic T cells. Their mechanism of differentiation and identification of MDSC-specific therapeutic targets are major areas of interest. We have devised a highly efficient and rapid method to produce very large numbers of melanoma-infiltrating MDSCs ex vivo without inducing tumors in mice. These MDSCs were used to study their differentiation, immunosuppressive activities and were compared to non-neoplastic counterparts and conventional dendritic cells using unbiased systems biology approaches. Differentially activated/deactivated pathways caused by cell type differences and by the melanoma tumor environment were identified. MDSCs increased the expression of trafficking receptors to sites of inflammation, endocytosis, changed lipid metabolism, and up-regulated detoxification pathways such as the expression of P450 reductase. These studies uncovered more than 60 potential novel therapeutic targets. As a proof of principle, we demonstrate that P450 reductase is the target of pro-drugs such as Paclitaxel, which depletes MDSCs following chemotherapy in animal models of melanoma and in human patients. Conversely, P450 reductase protects MDSCs against the cytotoxic actions of other chemotherapy drugs such as Irinotecan, which is ineffective for the treatment of melanoma.
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Affiliation(s)
- Therese Liechtenstein
- Division of infection and immunity, Rayne Institute, 5 University Street, London, UK. Immunomodulation group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Noemi Perez-Janices
- Division of infection and immunity, Rayne Institute, 5 University Street, London, UK. Cancer Epigenetics group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Maria Gato
- Immunomodulation group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Fabio Caliendo
- Immunomodulation group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Grazyna Kochan
- Immunomodulation group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Idoia Blanco-Luquin
- Cancer Epigenetics group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Kevin Van der Jeught
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Laarbeeklaan, 103/E, Jette, Vrije Universiteit Brussel, Belgium
| | - Frederick Arce
- Division of infection and immunity, Rayne Institute, 5 University Street, London, UK
| | - David Guerrero-Setas
- Cancer Epigenetics group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | | | - Enrique Santamaria
- Proteomics Unit, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Laarbeeklaan, 103/E, Jette, Vrije Universiteit Brussel, Belgium
| | - David Escors
- Division of infection and immunity, Rayne Institute, 5 University Street, London, UK. Immunomodulation group, Navarrabiomed-FMS, calle Irunlarrea 3, Pamplona, Navarra, Spain
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24
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Khoury M, Sim GC, Harao M, Radvanyi L, Amini B, Benjamin RS, Pisters PWT, Pollock RE, Tseng WW. Multicystic dedifferentiated retroperitoneal liposarcoma: tumour cyst fluid analysis and implications for management. BMJ Case Rep 2015; 2015:bcr-2015-211218. [PMID: 26156843 DOI: 10.1136/bcr-2015-211218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Liposarcomas are soft tissue sarcomas of adipocyte origin. We describe a case of a dedifferentiated retroperitoneal liposarcoma with an unusual presentation on recurrence as a large, multicystic tumour. The patient was a 72-year-old woman who had undergone multiple treatments including two prior resections. For her most recent locoregional disease recurrence, the patient was offered surgical debulking for symptom palliation. At this operation, performed after two cycles of chemotherapy, the tumour cyst fluid was analysed and found to have a predominance of immune cells with no identifiable malignant cells. This case and the results of our tumour cyst fluid analysis raise several interesting considerations for the management of this unique situation in a rare disease.
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Affiliation(s)
- Mitri Khoury
- Department of Surgery, Section of Surgical Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Geok Choo Sim
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, FL
| | - Michiko Harao
- Department of Breast Surgical Oncology, Tochigi Cancer Center, Utsunomiya, Japan
| | - Laszlo Radvanyi
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, FL Lion Biotechnologies, Woodland Hills, CA
| | - Behrang Amini
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Robert S Benjamin
- Department of Sarcoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Raphael E Pollock
- Division of Surgical Oncology, The James Cancer Center, Ohio State University, Columbus, OH
| | - William W Tseng
- Department of Surgery, Section of Surgical Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA Sarcoma Program, Hoag Family Cancer Institute and Hoag Memorial Hospital Presbyterian, Newport Beach, CA
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25
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Abstract
The central nervous system (CNS) possesses powerful local and global immunosuppressive capabilities that modulate unwanted inflammatory reactions in nervous tissue. These same immune-modulatory mechanisms are also co-opted by malignant brain tumors and pose a formidable challenge to brain tumor immunotherapy. Routes by which malignant gliomas coordinate immunosuppression include the mechanical and functional barriers of the CNS; immunosuppressive cytokines and catabolites; immune checkpoint molecules; tumor-infiltrating immune cells; and suppressor immune cells. The challenges to overcoming tumor-induced immunosuppression, however, are not unique to the brain, and several analogous immunosuppressive mechanisms also exist for primary tumors outside of the CNS. Ultimately, the immune responses in the CNS are linked and complementary to immune processes in the periphery, and advances in tumor immunotherapy in peripheral sites may therefore illuminate novel approaches to brain tumor immunotherapy, and vice versa.
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Affiliation(s)
- Powell Perng
- Department of Neurosurgery, School of Medicine, Johns Hopkins University , Baltimore, MD , USA
| | - Michael Lim
- Department of Neurosurgery, School of Medicine, Johns Hopkins University , Baltimore, MD , USA
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26
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Klinke DJ. Enhancing the discovery and development of immunotherapies for cancer using quantitative and systems pharmacology: Interleukin-12 as a case study. J Immunother Cancer 2015; 3:27. [PMID: 26082838 PMCID: PMC4468964 DOI: 10.1186/s40425-015-0069-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 04/28/2015] [Indexed: 12/22/2022] Open
Abstract
Recent clinical successes of immune checkpoint modulators have unleashed a wave of enthusiasm associated with cancer immunotherapy. However, this enthusiasm is dampened by persistent translational hurdles associated with cancer immunotherapy that mirror the broader pharmaceutical industry. Specifically, the challenges associated with drug discovery and development stem from an incomplete understanding of the biological mechanisms in humans that are targeted by a potential drug and the financial implications of clinical failures. Sustaining progress in expanding the clinical benefit provided by cancer immunotherapy requires reliably identifying new mechanisms of action. Along these lines, quantitative and systems pharmacology (QSP) has been proposed as a means to invigorate the drug discovery and development process. In this review, I discuss two central themes of QSP as applied in the context of cancer immunotherapy. The first theme focuses on a network-centric view of biology as a contrast to a "one-gene, one-receptor, one-mechanism" paradigm prevalent in contemporary drug discovery and development. This theme has been enabled by the advances in wet-lab capabilities to assay biological systems at increasing breadth and resolution. The second theme focuses on integrating mechanistic modeling and simulation with quantitative wet-lab studies. Drawing from recent QSP examples, large-scale mechanistic models that integrate phenotypic signaling-, cellular-, and tissue-level behaviors have the potential to lower many of the translational hurdles associated with cancer immunotherapy. These include prioritizing immunotherapies, developing mechanistic biomarkers that stratify patient populations and that reflect the underlying strength and dynamics of a protective host immune response, and facilitate explicit sharing of our understanding of the underlying biology using mechanistic models as vehicles for dialogue. However, creating such models require a modular approach that assumes that the biological networks remain similar in health and disease. As oncogenesis is associated with re-wiring of these biological networks, I also describe an approach that combines mechanistic modeling with quantitative wet-lab experiments to identify ways in which malignant cells alter these networks, using Interleukin-12 as an example. Collectively, QSP represents a new holistic approach that may have profound implications for how translational science is performed.
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Affiliation(s)
- David J Klinke
- Department of Chemical Engineering and Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 25606 USA
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27
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Karlitepe A, Ozalp O, Avci CB. New approaches for cancer immunotherapy. Tumour Biol 2015; 36:4075-8. [PMID: 25934338 DOI: 10.1007/s13277-015-3491-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 04/23/2015] [Indexed: 11/28/2022] Open
Abstract
Immunotherapy is a promising field that offers alternative methods for treatment of cancer. The current strategy consists of cancer vaccines, monoclonal antibodies, and cellular therapies. Cancer vaccines aim to eradicate cancer cells via immune system. Thus, they may attack these cells derived from any type of cancer, besides their role in preventing cancer. Lymphocytes and dendritic cells are often used in cellular therapy. In addition, monoclonal antibodies are designed to target specific antigens found in cancer cells. Currently, at least 12 clinically approved monoclonal antibodies are being used and many cancer vaccines are being developed with ongoing phase studies for cancer therapy. Relevant studies are focused on glioma and several other cancer types. Correspondingly, the combination of effective methods may enhance the efficacy of immunotherapy. It is thought that particularly immune checkpoint inhibitors will play a crucial role in immunotherapeutic approaches.
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Affiliation(s)
- Ayfer Karlitepe
- Department of Medical Biochemistry, Medical School, Ege University, Izmir, Turkey
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28
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Liechtenstein T, Perez-Janices N, Blanco-Luquin I, Goyvaerts C, Schwarze J, Dufait I, Lanna A, Ridder MD, Guerrero-Setas D, Breckpot K, Escors D. Anti-melanoma vaccines engineered to simultaneously modulate cytokine priming and silence PD-L1 characterized using ex vivo myeloid-derived suppressor cells as a readout of therapeutic efficacy. Oncoimmunology 2014; 3:e945378. [PMID: 25954597 DOI: 10.4161/21624011.2014.945378] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 05/09/2014] [Indexed: 01/21/2023] Open
Abstract
Efficacious antitumor vaccines strongly stimulate cancer-specific effector T cells and counteract the activity of tumor-infiltrating immunosuppressive cells. We hypothesised that combining cytokine expression with silencing programmed cell death ligand 1 (PD-L1) could potentiate anticancer immune responses of lentivector vaccines. Thus, we engineered a collection of lentivectors that simultaneously co-expressed an antigen, a PD-L1-silencing shRNA, and various T cell-polarising cytokines, including interferon γ (IFNγ), transforming growth factor β (TGFβ) or interleukins (IL12, IL15, IL23, IL17A, IL6, IL10, IL4). In a syngeneic B16F0 melanoma model and using tyrosinase related protein 1 (TRP1) as a vaccine antigen, we found that simultaneous delivery of IL12 and a PD-L1-silencing shRNA was the only combination that exhibited therapeutically relevant anti-melanoma activities. Mechanistically, we found that delivery of the PD-L1 silencing construct boosted T cell numbers, inhibited in vivo tumor growth and strongly cooperated with IL12 cytokine priming and antitumor activities. Finally, we tested the capacities of our vaccines to counteract tumor-infiltrating myeloid-derived suppressor cell (MDSC) activities ex vivo. Interestingly, the lentivector co-expressing IL12 and the PD-L1 silencing shRNA was the only one that counteracted MDSC suppressive activities, potentially underlying the observed anti-melanoma therapeutic benefit. We conclude that (1) evaluation of vaccines in healthy mice has no significant predictive value for the selection of anticancer treatments; (2) B16 cells expressing xenoantigens as a tumor model are of limited value; and (3) vaccines which inhibit the suppressive effect of MDSC on T cells in our ex vivo assay show promising and relevant antitumor activities.
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Key Words
- 142 3p, target sequence for the microRNA 142 3p
- DC, dendritic cell
- G-MDSC, granulocytic MDSC
- IL, interleukin
- IiOVA, MHC II invariant chain-ovalbumin
- M-MDS, monocytic MDSC
- MDSC
- MDSC, myeloid-derived suppressor cell
- MLR, mixed lymphocyte reaction
- OVA, chicken ovalbumin
- PD-1, programmed cell death 1
- PD-L1
- PD-L1, programmed cell death 1 ligand 1
- T cell
- TAA, tumor associated antigen
- TCR, T cell receptor
- TRP1, tyrosinase related protein 1;
- TRP2, tyrosinase related protein 2
- Th, T helper lymphocyte
- immunotherapy
- melanoma
- p1, PD-L1-targeted microRNA
- shRNA, short hairpin RNA
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Affiliation(s)
- Therese Liechtenstein
- Division of infection and immunity; Rayne Institute; University College London ; London, UK ; Immunomodulation group; Navarrabiomed-Fundacion Miguel Servet ; Pamplona, Navarra, Spain
| | - Noemi Perez-Janices
- Division of infection and immunity; Rayne Institute; University College London ; London, UK ; Cancer Epigenetics group; Navarrabiomed-Fundacion Miguel Servet ; Pamplona, Navarra, Spain
| | - Idoia Blanco-Luquin
- Cancer Epigenetics group; Navarrabiomed-Fundacion Miguel Servet ; Pamplona, Navarra, Spain
| | - Cleo Goyvaerts
- Laboratory of Molecular and Cellular Therapy; Department of Physiology-Immunology; Vrije Universiteit Brussel ; Jette, Belgium
| | - Julia Schwarze
- Laboratory of Molecular and Cellular Therapy; Department of Physiology-Immunology; Vrije Universiteit Brussel ; Jette, Belgium
| | - Ines Dufait
- Laboratory of Molecular and Cellular Therapy; Department of Physiology-Immunology; Vrije Universiteit Brussel ; Jette, Belgium ; Department of Radiotherapy; Vrije Universiteit Brussel ; Jette, Belgium
| | - Alessio Lanna
- Division of infection and immunity; Rayne Institute; University College London ; London, UK
| | - Mark De Ridder
- Department of Radiotherapy; Vrije Universiteit Brussel ; Jette, Belgium
| | - David Guerrero-Setas
- Cancer Epigenetics group; Navarrabiomed-Fundacion Miguel Servet ; Pamplona, Navarra, Spain
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy; Department of Physiology-Immunology; Vrije Universiteit Brussel ; Jette, Belgium
| | - David Escors
- Division of infection and immunity; Rayne Institute; University College London ; London, UK ; Immunomodulation group; Navarrabiomed-Fundacion Miguel Servet ; Pamplona, Navarra, Spain
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29
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Bueno V, Sant'Anna OA, Lord JM. Ageing and myeloid-derived suppressor cells: possible involvement in immunosenescence and age-related disease. AGE (DORDRECHT, NETHERLANDS) 2014; 36:9729. [PMID: 25399072 PMCID: PMC4233024 DOI: 10.1007/s11357-014-9729-x] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 11/04/2014] [Indexed: 05/02/2023]
Abstract
Infections, cancer and autoimmune diseases occur more frequently in the elderly, and although many factors contribute to this, the age-related remodelling of the immune system, termed immunosenescence, plays a major role. Over the last two decades, studies have evaluated the effect of ageing on both the adaptive and innate arms of the immune system and demonstrated compromised function in several cells including lymphocytes (naïve, effector and memory), regulatory T and B cells, monocytes, neutrophils and NK cells. In addition, a well-documented feature of ageing is the increase in systemic inflammatory status (inflammageing), with raised serum levels of IL6, TNFα and CRP as well as reduced IL10. Recently, myeloid-derived suppressor cells have been the focus of many reports as these cells show immunosuppressive properties and are present in higher frequency during infections, cancer and autoimmunity. Importantly, there have been publications showing increased numbers of myeloid-derived suppressor cells in aged mice and humans. In this review, we discuss the current literature on myeloid-derived suppressor cells, their possible role in altered immune function in the elderly, and whether it may be possible to manipulate these cells to alleviate age-related immune dysfunction.
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Affiliation(s)
- Valquiria Bueno
- Department of Microbiology Immunology and Parasitology, UNIFESP Federal University of São Paulo, São Paulo, Brazil,
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