1
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Du L, Gong Y, Zhang X, Sun J, Gao F, Shen M, Bai H, Yang T, Cheng X, Li S, Peng J, Liu Z, Ding S, Chen J, Cheng W. PD-L1 siRNA hitched polyethyleneimine-elastase constituting nanovesicle induces tumor immunogenicity and PD-L1 silencing for synergistic antitumor immunotherapy. J Nanobiotechnology 2024; 22:442. [PMID: 39068444 PMCID: PMC11282766 DOI: 10.1186/s12951-024-02700-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 07/03/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND PD-1/PD-L1 blockade has become a powerful method to treat malignant tumors. However, a large proportion of patients still do not benefit from this treatment, due to low tumor immunogenicity and low tumor penetration of the agents. Recently, neutrophil elastase has been shown to induce robust tumor immunogenicity, while the insufficient enzyme activity at the tumor site restricted its anti-tumor application. Here, we designed polyethyleneimine-modified neutrophil elastase (PEI-elastase) loaded with PD-L1small interfering RNA (PD-L1 siRNA) for improving enzymatic activity and delivering siRNA to tumor, which was expected to solve the above-mentioned problems. RESULTS We first demonstrated that PEI-elastase possessed high enzymatic activity, which was also identified as an excellent gene-delivery material. Then, we synthesized anti-tumor lipopolymer (P-E/S Lip) by encapsulating PEI-elastase and PD-L1siRNA with pH-responsive anionic liposomes. The P-E/S Lip could be rapidly cleaved in tumor acidic environment, leading to exposure of the PEI-elastase/PD-L1 siRNA. Consequently, PEI-elastase induced powerful tumor immunogenicity upon direct tumor killing with minimal toxicity to normal cells. In parallel, PEI-elastase delivered PD-L1siRNA into the tumor and reduced PD-L1 expression. Orthotopic tumor administration of P-E/S Lip not only attenuated primary tumor growth, but also produced systemic anti-tumor immune response to inhibit growth of distant tumors and metastasis. Moreover, intravenous administration of P-E/S Lip into mice bearing subcutaneous tumors leaded to an effective inhibition of established B16-F10 tumor and 4T1 tumor, with histological analyses indicating an absence of detectable toxicity. CONCLUSIONS In our study, a protease-based nanoplatform was used to cooperatively provoke robust tumor immunogenicity and down-regulate PD-L1 expression, which exhibited great potential as a combination therapy for precisely treating solid tumors.
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Affiliation(s)
- Li Du
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Biobank, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yao Gong
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Xiaoying Zhang
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Jide Sun
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Fengxia Gao
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Meiying Shen
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Huili Bai
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Tiantian Yang
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Xiaoxue Cheng
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Siqiao Li
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Jian Peng
- Biobank, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zhangling Liu
- Biobank, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Junman Chen
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China.
| | - Wei Cheng
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
- Biobank, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Fang L, Liu K, Liu C, Wang X, Ma W, Xu W, Wu J, Sun C. Tumor accomplice: T cell exhaustion induced by chronic inflammation. Front Immunol 2022; 13:979116. [PMID: 36119037 PMCID: PMC9479340 DOI: 10.3389/fimmu.2022.979116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
The development and response to treatment of tumor are modulated by inflammation, and chronic inflammation promotes tumor progression and therapy resistance. This article summarizes the dynamic evolution of inflammation from acute to chronic in the process of tumor development, and its effect on T cells from activation to the promotion of exhaustion. We review the mechanisms by which inflammatory cells and inflammatory cytokines regulate T cell exhaustion and methods for targeting chronic inflammation to improve the efficacy of immunotherapy. It is great significance to refer to the specific state of inflammation and T cells at different stages of tumor development for accurate clinical decision-making of immunotherapy and improving the efficiency of tumor immunotherapy.
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Affiliation(s)
- Liguang Fang
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Kunjing Liu
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Cun Liu
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
| | - Xiaomin Wang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Wenzhe Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, Macao SAR, China
| | - Wenhua Xu
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Jibiao Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Changgang Sun
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
- *Correspondence: Changgang Sun,
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3
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Barati M, Mirzavi F, Atabaki M, Bibak B, Mohammadi M, Jaafari MR. A review of PD-1/PD-L1 siRNA delivery systems in immune T cells and cancer cells. Int Immunopharmacol 2022; 111:109022. [PMID: 35987146 DOI: 10.1016/j.intimp.2022.109022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/20/2022] [Accepted: 06/30/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Programmed cell death 1 (PD-1) is a member of the CD28/CTLA-4 family of inhibitory immunological checkpoint receptors that's also widely produced by exhausted T lymphocytes in an immunosuppressive tumor microenvironment. PD-1 binds to programmed death ligand (PD-L1) and suppresses anti-cancer activity of T lymphocytes. We examined the current literature on how siRNA delivery systems can be used to target PD-1 and PD-L1, as well as the anti-cancer mechanisms and challenges associated with siRNA molecules. We look at studies that use program death 1 siRNA or program death 1 ligand siRNA to treat cancer. Several databases have been used for this purpose, including NCBI, Scopus, and Google Scholar. KEY FINDINGS This study looked at several methods for delivering siRNA to immune cells and cancer cells. According to these findings, suppressing PD-1 in T cells increases T lymphocyte activity. PD-L1 suppression in DCs improves antigen presentation and co-stimulatory signals on their surface, resulting in T cell activation. Chemotherapy resistance and cancer cell suppression of T cells are reduced when PD-L1/2 is suppressed in cancer cells. CONCLUSION The findings of this study indicated that several strategies for siRNA transfection to immune and cancer cells have been evaluated in recent decades, some of which effectively transfect siRNA to target cells, and defined PD-1 siRNA as a promising strategy for cancer treatment.
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Affiliation(s)
- Mehdi Barati
- Department of Pathobiology and Laboratory Sciences, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Farshad Mirzavi
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Mahdi Atabaki
- Clinical Immunology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Bahram Bibak
- Department of Physiology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mojgan Mohammadi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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4
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Guo Y, Zhang Q, Zhu Q, Gao J, Zhu X, Yu H, Li Y, Zhang C. Copackaging photosensitizer and PD-L1 siRNA in a nucleic acid nanogel for synergistic cancer photoimmunotherapy. SCIENCE ADVANCES 2022; 8:eabn2941. [PMID: 35442728 PMCID: PMC9020667 DOI: 10.1126/sciadv.abn2941] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/03/2022] [Indexed: 05/27/2023]
Abstract
Packaging multiple drugs into a nanocarrier with rational design to achieve synergistic cancer therapy remains a challenge due to the intrinsically varied pharmacodynamics of therapeutic agents. Especially difficult is combining small-molecule drugs and macromolecular biologics. Here, we successfully graft pheophorbide A (PPA) photosensitizers on DNA backbone at predesigned phosphorothioate modification sites. The synthesized four PPA-grafted DNAs are assembled into a tetrahedron framework, which further associates with a programmed death ligand-1 (PD-L1) small interfering RNA (siRNA) linker through supramolecular self-assembly to form an siRNA and PPA copackaged nanogel. With dual therapeutic agents inside, the nanogel can photodynamically kill tumor cells and induce remarkable immunogenic cell death. Also, it simultaneously silences the PD-L1 expression of the tumor cells, which substantially promotes the antitumor immune response and leads to an enhanced antitumor efficacy in a synergistic fashion.
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Affiliation(s)
- Yuanyuan Guo
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 600 Yi Shan Road, Shanghai 200233, China
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qiushuang Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qiwen Zhu
- State Key Laboratory of Drug Research and Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jing Gao
- State Key Laboratory of Drug Research and Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Haijun Yu
- State Key Laboratory of Drug Research and Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yuehua Li
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 600 Yi Shan Road, Shanghai 200233, China
| | - Chuan Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Van Hoeck J, Braeckmans K, De Smedt SC, Raemdonck K. Non-viral siRNA delivery to T cells: Challenges and opportunities in cancer immunotherapy. Biomaterials 2022; 286:121510. [DOI: 10.1016/j.biomaterials.2022.121510] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 03/17/2022] [Accepted: 04/01/2022] [Indexed: 12/12/2022]
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Monty MA, Islam MA, Nan X, Tan J, Tuhin IJ, Tang X, Miao M, Wu D, Yu L. Emerging role of RNA interference in immune cells engineering and its therapeutic synergism in immunotherapy. Br J Pharmacol 2021; 178:1741-1755. [PMID: 33608889 DOI: 10.1111/bph.15414] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 02/09/2021] [Accepted: 02/09/2021] [Indexed: 12/12/2022] Open
Abstract
RNAi effectors (e.g. siRNA, shRNA and miRNA) can trigger the silencing of specific genes causing alteration of genomic functions becoming a new therapeutic area for the treatment of infectious diseases, neurodegenerative disorders and cancer. In cancer treatment, RNAi effectors showed potential immunomodulatory actions by down-regulating immuno-suppressive proteins, such as PD-1 and CTLA-4, which restrict immune cell function and present challenges in cancer immunotherapy. Therefore, compared with extracellular targeting by antibodies, RNAi-mediated cell-intrinsic disruption of inhibitory pathways in immune cells could promote an increased anti-tumour immune response. Along with non-viral vectors, DNA-based RNAi strategies might be a more promising method for immunomodulation to silence multiple inhibitory pathways in T cells than immune checkpoint blockade antibodies. Thus, in this review, we discuss diverse RNAi implementation strategies, with recent viral and non-viral mediated RNAi synergism to immunotherapy that augments the anti-tumour immunity. Finally, we provide the current progress of RNAi in clinical pipeline.
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Affiliation(s)
- Masuma Akter Monty
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Md Ariful Islam
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xu Nan
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Jingwen Tan
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Israth Jahan Tuhin
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Xiaowen Tang
- The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Miao Miao
- The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Depei Wu
- The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lei Yu
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
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7
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Qi T, Fu J, Zhang W, Cui W, Xu X, Yue J, Wang Q, Tian X. Mutation of PD-1 immune receptor tyrosine-based switch motif (ITSM) enhances the antitumor activity of cytotoxic T cells. Transl Cancer Res 2020; 9:6811-6819. [PMID: 35117290 PMCID: PMC8798335 DOI: 10.21037/tcr-20-2118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/09/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND Programmed cell death protein 1 (PD-1), as an immune checkpoint cell membrane receptor, negatively regulates T cell activation via its immune receptor, the tyrosine-based switch motif (ITSM). The purpose of this research was to evaluate the antitumor activity T cells with the ITSM mutation of PD-1 on non-small cell lung cancer (NSCLC) in vitro and in vivo. METHODS In this study, the tyrosine of ITSM in cytotoxic T cells was mutated using the adenine base editor (ABE)-xCas9 system to evaluate its effect on the antitumor activity of T cells against NSCLC. RESULTS Results showed that the PD-1-deficient T cells enhanced the death of the cocultured NSCLC cells compared with the normal T cells and saline solution. PD-1-deficient T cells also changed the interleukin 2(IL-2), interferon γ (IFN-γ), tumor necrosis factor α (TNF-α), and granulocyte-macrophage colony-stimulating factor (GM-CSF) secretion of T cells compared with those of the normal T cells. The effectiveness of ITSM mutation in enhancing the antitumor activity of PD-1-deficient T cells was verified in vivo by using a mouse xenograft model. The xenografted mice treated with PD-1-deficient T cells demonstrated repressed tumor growth of the NSCLC cells compared with those treated with normal T cells and saline solution. CONCLUSIONS The mutation of ITSM in cytotoxic T cell via the ABE-xCas9 system can significantly enhance the antitumor activity of T cells.
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Affiliation(s)
- Tongbing Qi
- Key Laboratory of Biomedical Engineering & Technology of Shandong High School, Qilu Medical University, Zibo, China
| | - Juan Fu
- Shandong Bio-focus Gene Science and Technology Ltd., Zibo, China
| | - Wen Zhang
- Clinical laboratory of Zibo Central Hospital, Zibo, China
| | - Weitong Cui
- Key Laboratory of Biomedical Engineering & Technology of Shandong High School, Qilu Medical University, Zibo, China
| | - Xiaosong Xu
- Shandong Bio-focus Gene Science and Technology Ltd., Zibo, China
| | - Jianmei Yue
- Department of Endocrinology, the First Hospital of Zibo City, Qilu Medical University, Zibo, China
| | - Qinglu Wang
- Key Laboratory of Biomedical Engineering & Technology of Shandong High School, Qilu Medical University, Zibo, China
| | - Xuewen Tian
- College of Sports and Health, Shandong Sport University, Jinan, China
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8
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Sui X, Jin T, Liu T, Wu S, Wu Y, Tang Z, Ren Y, Ni D, Yao Z, Zhang H. Tumor Immune Microenvironments (TIMEs): Responsive Nanoplatforms for Antitumor Immunotherapy. Front Chem 2020; 8:804. [PMID: 33094098 PMCID: PMC7508192 DOI: 10.3389/fchem.2020.00804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/30/2020] [Indexed: 12/31/2022] Open
Abstract
Interest in cancer immunotherapy has rapidly risen since it offers many advantages over traditional approaches, such as high efficiency and prevention of metastasis. Efforts have primarily focused on two major strategies for regulating the body's antitumor immune response mechanisms: “enhanced immunotherapy” that aims to amplify the immune activation, and “normalized immunotherapy” that corrects the defective immune mechanism in the tumor immune microenvironments (TIMEs), which returns to the normal immune trajectory. However, due to the complexity and heterogeneity of the TIMEs, and lack of visualization research on the immunotherapy process, cancer immunotherapy has not been widely used in clinical setting. Recently, through the design and modification of nanomaterials, intelligent TIME-responsive nanoplatforms were developed from which encouraging results in many aspects of immunotherapy have been achieved. In this mini review, the status of designed nanomaterials for nanoplatform-based immune regulation of TIMEs has been emphasized, particularly with respect to the aforementioned approaches. It is envisaged that future prospects will focus on a combination of multiple immunotherapies for more efficient cancer inhibition and elimination.
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Affiliation(s)
- Xueqing Sui
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Teng Jin
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tonghui Liu
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shiman Wu
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yue Wu
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhongmin Tang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Yan Ren
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Dalong Ni
- Departments of Radiology, Medical Physics, and Pharmaceutical Sciences, University of Wisconsin - Madison, Madison, WI, United States
| | - Zhenwei Yao
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Hua Zhang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
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Abstract
Adoptive immunotherapy with engineered T cells is at the forefront of cancer treatment. T cells can be engineered to express T-cell receptors (TCRs) specific for tumor-associated antigens (TAAs) derived from intracellular or cell surface proteins. T cells engineered with TCRs (TCR-T) allow for targeting diverse types of TAAs, including proteins overexpressed in malignant cells, those with lineage-restricted expression, cancer-testis antigens, and neoantigens created from abnormal, malignancy-restricted proteins. Minor histocompatibility antigens can also serve as TAAs for TCR-T to treat relapsed hematologic malignancies after allogeneic hematopoietic cell transplantation. Moreover, TCR constructs can be modified to improve safety and enhance function and persistence of TCR-T. Transgenic T-cell receptor therapies targeting 3 different TAAs are in early-phase clinical trials for treatment of hematologic malignancies. Preclinical studies of TCR-T specific for many other TAAs are underway and offer great promise as safe and effective therapies for a wide range of cancers.
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Affiliation(s)
- Melinda A Biernacki
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Medicine, University of Washington, Seattle, WA
| | - Michelle Brault
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Marie Bleakley
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Pediatrics, University of Washington, Seattle, WA
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10
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Payandeh Z, Khalili S, Somi MH, Mard-Soltani M, Baghbanzadeh A, Hajiasgharzadeh K, Samadi N, Baradaran B. PD-1/PD-L1-dependent immune response in colorectal cancer. J Cell Physiol 2020; 235:5461-5475. [PMID: 31960962 DOI: 10.1002/jcp.29494] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 01/09/2020] [Indexed: 12/19/2022]
Abstract
Colorectal cancer (CRC) is still considered as the third most frequent cancer in the world. Microsatellite instability (MSI), inflammation, and microRNAs have been demonstrated as the main contributing factors in CRC. Subtype 1 CRC is defined by NK cells infiltration, induction of Th1 lymphocyte and cytotoxic T cell responses as well as upregulation of immune checkpoint proteins including programmed cell death-1 (PD-1). Based on the diverse features of CRC, such as the stage and localization of the tumor, several treatment approaches are available. However, the efficiency of these treatments may be decreased due to the development of diverse resistance mechanisms. It has been proven that monoclonal antibodies (mAbs) can increase the effectiveness of CRC treatments. Nowadays, several mAbs including nivolumab and pembrolizumab have been approved for the treatment of CRC. Immune checkpoint receptors including PD-1 can be inhibited by these antibodies. Combination therapy gives an opportunity for advanced treatment for CRC patients. In this review, an update has been provided on the molecular mechanisms involved in MSI colorectal cancer immune microenvironment by focusing on PD-ligand 1 (PD-L1) and treatment of patients with advanced immunotherapy, which were examined in the different clinical trial phases. Considering induced expression of PD-L1 by conventional chemotherapeutics, we have summarized the role of PD-L1 in CRC, the chemotherapy effects on the PD-1/PD-L1 axis and novel combined approaches to enhance immunotherapy of CRC by focusing on PD-L1.
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Affiliation(s)
- Zahra Payandeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Khalili
- Department of Biology Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran
| | - Mohammad Hossein Somi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maysam Mard-Soltani
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Dezful University of Medical Sciences, Dezful, Iran
| | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Nasser Samadi
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical, Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Sioud M. Unleashing the Therapeutic Potential of Dendritic and T Cell Therapies Using RNA Interference. Methods Mol Biol 2020; 2115:259-280. [PMID: 32006406 DOI: 10.1007/978-1-0716-0290-4_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Therapeutic dendritic cell (DC) cancer vaccines work to boost the body's immune system to fight a cancer. Although this type of immunotherapy often leads to the activation of tumor-specfic T cells, clinical responses are fairly low, arguing for the need to improve the design of DC-based vaccines. Recent studies revealed a promising strategy of combining DC vaccines with small interfering RNAs (siRNAs) targeting immunosuppressive signals such as checkpoint receptors. Similarly, incorporating checkpoint siRNA blockers in adoptive T-cell therapy to amplify cytotoxic T lymphocyte responses is now being tested in the clinic. The development of the next generation of cancer immunotherapies using siRNA technology will hopefuly benefit patients with various cancer types including those who did not respond to current therapies. This review highlights the latest advances in RNA interference technology to improve the therapeutic efficacy of DC cancer vaccines and T cell therapy.
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Affiliation(s)
- Mouldy Sioud
- Department of Immunology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Ullernchausseen 70, Oslo, Norway.
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12
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Zhang M, Liu K, Wang M. Development of cancer immunotherapy based on PD-1/PD-L1 pathway blockade. RSC Adv 2019; 9:33903-33911. [PMID: 35528929 PMCID: PMC9073714 DOI: 10.1039/c9ra04590b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/16/2019] [Indexed: 12/29/2022] Open
Abstract
Programmed death receptor 1 (PD-1)/programmed death ligand 1 (PD-L1) blockade therapy has achieved considerable success in various tumours. However, only a fraction of patients benefit from its clinical application, and some patients might be suffer from tumour resistance against PD-1/PD-L1 blockade therapy after the original response. In this review, we summarized the main reasons that caused the low response rate of PD-/PD-L1 blockade therapy: firstly, the off-target of PD-1/PD-L1 blocking agents, which is also the main factor of the side effect of autoimmune disorders; secondly, the insufficient infiltration of T cells in a tumour microenvironment; thirdly, the low immunogenicity of tumor cells; fourth, other immunosuppressive components impairing the therapeutic efficacy of the immunotherapy based on the PD-/PD-L1 blockade, and introducing some updated the delivery system of PD-1/PD-L1 blocking agents and the combination therapy based on PD-1/PD-L1 inhibitors and other therapeutics that can complement and promote each other to achieve improved immune response.
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Affiliation(s)
- Min Zhang
- College of Food Science and Technology, Shanghai Ocean University 999 Hucheng Ring Road Shanghai 201306 China
| | - Kehai Liu
- College of Food Science and Technology, Shanghai Ocean University 999 Hucheng Ring Road Shanghai 201306 China
| | - Mingfu Wang
- College of Food Science and Technology, Shanghai Ocean University 999 Hucheng Ring Road Shanghai 201306 China
- University Hong Kong, School of Biological Sciences Pokfulam Road Hong Kong 999077 China
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13
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Liu J, Zhang R, Xu ZP. Nanoparticle-Based Nanomedicines to Promote Cancer Immunotherapy: Recent Advances and Future Directions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900262. [PMID: 30908864 DOI: 10.1002/smll.201900262] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/21/2019] [Indexed: 05/27/2023]
Abstract
Cancer immunotherapy is a promising cancer terminator by directing the patient's own immune system in the fight against this challenging disorder. Despite the monumental therapeutic potential of several immunotherapy strategies in clinical applications, the efficacious responses of a wide range of immunotherapeutic agents are limited in virtue of their inadequate accumulation in the tumor tissue and fatal side effects. In the last decades, increasing evidences disclose that nanotechnology acts as an appealing solution to address these technical barriers via conferring rational physicochemical properties to nanomaterials. In this Review, an imperative emphasis will be drawn from the current understanding of the effect of a nanosystem's structure characteristics (e.g., size, shape, surface charge, elasticity) and its chemical modification on its transport and biodistribution behavior. Subsequently, rapid-moving advances of nanoparticle-based cancer immunotherapies are summarized from traditional vaccine strategies to recent novel approaches, including delivery of immunotherapeutics (such as whole cancer cell vaccines, immune checkpoint blockade, and immunogenic cell death) and engineered immune cells, to regulate tumor microenvironment and activate cellular immunity. The future prospects may involve in the rational combination of a few immunotherapies for more efficient cancer inhibition and elimination.
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Affiliation(s)
- Jianping Liu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
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14
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Hartley J, Abken H. Chimeric antigen receptors designed to overcome transforming growth factor-β-mediated repression in the adoptive T-cell therapy of solid tumors. Clin Transl Immunology 2019; 8:e1064. [PMID: 31236274 PMCID: PMC6589154 DOI: 10.1002/cti2.1064] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 12/16/2022] Open
Abstract
Adoptive cell therapy with chimeric antigen receptor (CAR)-engineered T cells produced lasting remissions in the treatment of advanced, so far refractory B-cell malignancies; however, the elimination of solid tumors remains so far elusive. The low efficacy of CAR T cells is thought to be due to the immune-repressive milieu within the tumor lesion, predominantly mediated by transforming growth factor-β (TGF-β) that represses effector T-cell activities and drives differentiation towards regulatory T cells (Tregs). Seeking to boost antitumor immunity, TGF-β is currently targeted by different means in pre-clinical studies. While a recent clinical trial showed the utility of shielding CAR T cells from TGF-β repression, further strategies in counteracting TGF-β in the adoptive cell therapy warrant exploration. We here discuss the most recent advances in the field and draw future developments to make CAR T-cell therapy more potent in the treatment of solid cancer.
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Affiliation(s)
- Jordan Hartley
- RCI Regensburg Centre for Interventional Immunology Chair Genetic Immunotherapy University Hospital Regensburg Regensburg Germany
| | - Hinrich Abken
- RCI Regensburg Centre for Interventional Immunology Chair Genetic Immunotherapy University Hospital Regensburg Regensburg Germany
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15
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Simon B, Harrer DC, Schuler-Thurner B, Schaft N, Schuler G, Dörrie J, Uslu U. The siRNA-mediated downregulation of PD-1 alone or simultaneously with CTLA-4 shows enhanced in vitro CAR-T-cell functionality for further clinical development towards the potential use in immunotherapy of melanoma. Exp Dermatol 2019; 27:769-778. [PMID: 29704887 DOI: 10.1111/exd.13678] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2018] [Indexed: 12/20/2022]
Abstract
Chimeric antigen receptor (CAR)-T cells have been used successfully for cancer immunotherapy. While substantial tumor regression was observed in leukaemia and lymphoma, CAR therapy of solid tumors needs further improvement. A major obstacle to the efficiency of engineered T cells is posed by triggering of inhibitory receptors, for example programmed cell death protein 1 (PD-1) and cytotoxic T lymphocyte-associated protein 4 (CTLA-4), leading to an impaired antitumor activity. To boost CAR-T-cell function, we co-electroporated T cells with both, mRNA encoding a CAR specific for chondroitin sulphate proteoglycan 4 (CSPG4) and small-interfering RNAs (siRNAs) to downregulate PD-1 (siPD-1) and CTLA-4 (siCTLA-4). Flow cytometry revealed that activation-induced upregulation of both PD-1 and CTLA-4 was suppressed when compared to CAR-T cells electroporated with negative control siRNA. The siRNA transfection showed no influence on CAR expression of engineered T cells. Functionality assays were performed using PD-L1- and CD80-transfected melanoma cells endogenously expressing CSPG4. CAR-T cells transfected with siPD-1 alone showed improvement in cytokine secretion. Additionally, CAR-T cells transfected with either siPD-1 alone or together with siCTLA-4 exhibited a significantly increased cytotoxicity. No or only little effects were observed when CAR-T cells were co-transfected with siCTLA-4 only. Taken together, it is feasible to optimize CAR-T cells by co-transfection of CAR-encoding mRNA and siRNAs to downregulate inhibitory receptors. Our in vitro data indicate an improvement of the functionality of these CAR-T cells, suggesting that this strategy could represent a novel method to enhance CAR-T-cell immunotherapy of cancer.
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Affiliation(s)
- Bianca Simon
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany.,Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Dennis C Harrer
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Beatrice Schuler-Thurner
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Niels Schaft
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Gerold Schuler
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jan Dörrie
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ugur Uslu
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
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16
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Sioud M. Releasing the Immune System Brakes Using siRNAs Enhances Cancer Immunotherapy. Cancers (Basel) 2019; 11:cancers11020176. [PMID: 30717461 PMCID: PMC6406640 DOI: 10.3390/cancers11020176] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 12/12/2022] Open
Abstract
Therapeutic dendritic cell (DC) cancer vaccines rely on the immune system to eradicate tumour cells. Although tumour antigen-specific T cell responses have been observed in most studies, clinical responses are fairly low, arguing for the need to improve the design of DC-based vaccines. The incorporation of small interfering RNAs (siRNAs) against immunosuppressive factors in the manufacturing process of DCs can turn the vaccine into potent immune stimulators. Additionally, siRNA modification of ex vivo-expanded T cells for adoptive immunotherapy enhanced their killing potency. Most of the siRNA-targeted immune inhibitory factors have been successful in that their blockade produced the strongest cytotoxic T cell responses in preclinical and clinical studies. Cancer patients treated with the siRNA-modified DC vaccines showed promising clinical benefits providing a strong rationale for further development of these immunogenic vaccine formulations. This review covers the progress in combining siRNAs with DC vaccines or T cell therapy to boost anti-tumour immunity.
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Affiliation(s)
- Mouldy Sioud
- Department of Immunology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Montebello, N-0310 Oslo, Norway.
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17
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Luo M, Fu L. The effect of chemotherapy on programmed cell death 1/programmed cell death 1 ligand axis: some chemotherapeutical drugs may finally work through immune response. Oncotarget 2018; 7:29794-803. [PMID: 26919108 PMCID: PMC5045434 DOI: 10.18632/oncotarget.7631] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/15/2016] [Indexed: 12/20/2022] Open
Abstract
Most tumors are immunogenic which would trigger some immune response. Chemotherapy also has immune potentiating mechanisms of action. But it is unknown whether the immune response is associated with the efficacy of chemotherapy and the development of chemoresistance. Recently, there is a growing interest in immunotherapy, among which the co-inhibitory molecules, programmed cell death 1/programmed cell death 1 ligand (PD-1/PD-L1) leads to immune evasion. Since some reports showed that conventional chemotherapeutics can induce the expression of PD-L1, we try to summarize the effect of chemotherapy on PD-1/PD-L1 axis and some potential molecules relevant to PD-1/PD-L1 in chemoresistance in this review.
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Affiliation(s)
- Min Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Liwu Fu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute, Sun Yat-Sen University Cancer Center, Guangzhou, China
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18
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Stark FC, Weeratna RD, Deschatelets L, Gurnani K, Dudani R, McCluskie MJ, Krishnan L. An Archaeosome-Adjuvanted Vaccine and Checkpoint Inhibitor Therapy Combination Significantly Enhances Protection from Murine Melanoma. Vaccines (Basel) 2017; 5:E38. [PMID: 29072624 PMCID: PMC5748605 DOI: 10.3390/vaccines5040038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 10/03/2017] [Accepted: 10/20/2017] [Indexed: 12/30/2022] Open
Abstract
Archaeosomes constitute archaeal lipid vesicle vaccine adjuvants that evoke a strong CD8⁺ T cell response to antigenic cargo. Therapeutic treatment of murine B16-ovalbumin (B16-OVA) melanoma with archaeosome-OVA eliminates small subcutaneous solid tumors; however, they eventually resurge despite an increased frequency of circulating and tumor infiltrating OVA-CD8⁺ T cells. Herein, a number of different approaches were evaluated to improve responses, including dose number, interval, and the combination of vaccine with checkpoint inhibitors. Firstly, we found that tumor protection could not be enhanced by repetitive and/or delayed boosting to maximize the CD8⁺ T cell number and/or phenotype. The in vivo cytotoxicity of vaccine-induced OVA-CD8⁺ T cells was impaired in tumor-bearing mice. Additionally, tumor-infiltrating OVA-CD8⁺ T cells had an increased expression of programmed cell death protein-1 (PD-1) compared to other organ compartments, suggesting impaired function. Combination therapy of tumor-bearing mice with the vaccine archaeosome-OVA, and α-CTLA-4 administered concurrently as well as α-PD-1 and an α-PD-L1 antibody administered starting 9 days after tumor challenge given on a Q3Dx4 schedule (days 9, 12, 15 and 18), significantly enhanced survival. Following multi-combination therapy ~70% of mice had rapid tumor recession, with no detectable tumor mass after >80 days in comparison to a median survival of 17-22 days for untreated or experimental groups receiving single therapies. Overall, archaeosomes offer a powerful platform for delivering cancer antigens when used in combination with checkpoint inhibitor immunotherapies.
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Affiliation(s)
- Felicity C Stark
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
| | - Risini D Weeratna
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
| | - Lise Deschatelets
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
| | - Komal Gurnani
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
| | - Renu Dudani
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
| | - Michael J McCluskie
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
| | - Lakshmi Krishnan
- National Research Council of Canada-Human Health Therapeutics, 1200 Montreal Rd., Ottawa, ON K1A 0R6, Canada.
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19
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Irving M, Vuillefroy de Silly R, Scholten K, Dilek N, Coukos G. Engineering Chimeric Antigen Receptor T-Cells for Racing in Solid Tumors: Don't Forget the Fuel. Front Immunol 2017; 8:267. [PMID: 28421069 PMCID: PMC5376574 DOI: 10.3389/fimmu.2017.00267] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 02/23/2017] [Indexed: 12/20/2022] Open
Abstract
T-cells play a critical role in tumor immunity. Indeed, the presence of tumor-infiltrating lymphocytes is a predictor of favorable patient prognosis for many indications and is a requirement for responsiveness to immune checkpoint blockade therapy targeting programmed cell death 1. For tumors lacking immune infiltrate, or for which antigen processing and/or presentation has been downregulated, a promising immunotherapeutic approach is chimeric antigen receptor (CAR) T-cell therapy. CARs are hybrid receptors that link the tumor antigen specificity and affinity of an antibody-derived single-chain variable fragment with signaling endodomains associated with T-cell activation. CAR therapy targeting CD19 has yielded extraordinary clinical responses against some hematological tumors. Solid tumors, however, remain an important challenge to CAR T-cells due to issues of homing, tumor vasculature and stromal barriers, and a range of obstacles in the tumor bed. Protumoral immune infiltrate including T regulatory cells and myeloid-derived suppressor cells have been well characterized for their ability to upregulate inhibitory receptors and molecules that hinder effector T-cells. A critical role for metabolic barriers in the tumor microenvironment (TME) is emerging. High glucose consumption and competition for key amino acids by tumor cells can leave T-cells with insufficient energy and biosynthetic precursors to support activities such as cytokine secretion and lead to a phenotypic state of anergy or exhaustion. CAR T-cell expansion protocols that promote a less differentiated phenotype, combined with optimal receptor design and coengineering strategies, along with immunomodulatory therapies that also promote endogenous immunity, offer great promise in surmounting immunometabolic barriers in the TME and curing solid tumors.
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Affiliation(s)
- Melita Irving
- The Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland
| | | | - Kirsten Scholten
- The Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland
| | - Nahzli Dilek
- Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - George Coukos
- The Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland.,Department of Oncology, University Hospital of Lausanne (CHUV), Lausanne, Switzerland
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20
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Beavis PA, Slaney CY, Kershaw MH, Gyorki D, Neeson PJ, Darcy PK. Reprogramming the tumor microenvironment to enhance adoptive cellular therapy. Semin Immunol 2016; 28:64-72. [DOI: 10.1016/j.smim.2015.11.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 10/29/2015] [Accepted: 11/04/2015] [Indexed: 12/22/2022]
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21
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Su S, Hu B, Shao J, Shen B, Du J, Du Y, Zhou J, Yu L, Zhang L, Chen F, Sha H, Cheng L, Meng F, Zou Z, Huang X, Liu B. CRISPR-Cas9 mediated efficient PD-1 disruption on human primary T cells from cancer patients. Sci Rep 2016; 6:20070. [PMID: 26818188 PMCID: PMC4730182 DOI: 10.1038/srep20070] [Citation(s) in RCA: 210] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 12/15/2015] [Indexed: 12/20/2022] Open
Abstract
Strategies that enhance the function of T cells are critical for immunotherapy. One negative regulator of T-cell activity is ligand PD-L1, which is expressed on dentritic cells (DCs) or some tumor cells, and functions through binding of programmed death-1 (PD-1) receptor on activated T cells. Here we described for the first time a non-viral mediated approach to reprogram primary human T cells by disruption of PD-1. We showed that the gene knockout of PD-1 by electroporation of plasmids encoding sgRNA and Cas9 was technically feasible. The disruption of inhibitory checkpoint gene PD-1 resulted in significant reduction of PD-1 expression but didn't affect the viability of primary human T cells during the prolonged in vitro culture. Cellular immune response of the gene modified T cells was characterized by up-regulated IFN-γ production and enhanced cytotoxicity. These results suggest that we have demonstrated an approach for efficient checkpoint inhibitor disruption in T cells, providing a new strategy for targeting checkpoint inhibitors, which could potentialy be useful to improve the efficacy of T-cell based adoptive therapies.
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Affiliation(s)
- Shu Su
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Bian Hu
- MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, National Resource Center for Mutant Mice, Nanjing 210061, China
| | - Jie Shao
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Juan Du
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Yinan Du
- MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, National Resource Center for Mutant Mice, Nanjing 210061, China
| | - Jiankui Zhou
- MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, National Resource Center for Mutant Mice, Nanjing 210061, China
| | - Lixia Yu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Lianru Zhang
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Fangjun Chen
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Huizi Sha
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Lei Cheng
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Fanyan Meng
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Zhengyun Zou
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
| | - Xingxu Huang
- MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, National Resource Center for Mutant Mice, Nanjing 210061, China
- School of Life Science and Technology, ShanghaiTech University, 100 Haike Rd., Pudong New Area, Shanghai 201210, China
| | - Baorui Liu
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing 210008, China
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22
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Haji-Fatahaliha M, Hosseini M, Akbarian A, Sadreddini S, Jadidi-Niaragh F, Yousefi M. CAR-modified T-cell therapy for cancer: an updated review. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1339-49. [PMID: 26068778 DOI: 10.3109/21691401.2015.1052465] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The use of chimeric antigen receptor (CAR)-modified T cells is a promising approach for cancer immunotherapy. These genetically modified receptors contain an antigen-binding moiety, a hinge region, a transmembrane domain, and an intracellular costimulatory domain resulting in T-cell activation subsequent to antigen binding. Optimal tumor removal through CAR-modified T cells requires suitable target antigen selection, co-stimulatory signaling domain, and the ability of CAR T cells to traffic, persist, and retain antitumor function after adoptive transfer. There are several elements which can improve antitumor function of CAR T cells, including signaling, conditioning chemotherapy and irradiation, tumor burden of the disease, T-cell phenotype, and supplementary cytokine usage. This review outlines four generations of CAR. The pre-clinical and clinical studies showed that this technique has a great potential for treatment of solid and hematological malignancies. The main purpose of the current review is to focus on the pre-clinical and clinical developments of CAR-based immunotherapy.
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Affiliation(s)
- Mostafa Haji-Fatahaliha
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Immunology , Faculty of Medicine, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Maryam Hosseini
- b Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Immunology , Faculty of Medicine, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Asiye Akbarian
- d Department of Microbiology , Faculty of Medicine, Tehran University of Medical Sciences , Tehran , Iran
| | - Sanam Sadreddini
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Immunology , Faculty of Medicine, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Farhad Jadidi-Niaragh
- e Department of Immunology , School of Public Health, Tehran University of Medical Sciences , Tehran , Iran
| | - Mehdi Yousefi
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Immunology , Faculty of Medicine, Tabriz University of Medical Sciences , Tabriz , Iran
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Abstract
Signaling through programmed death 1 (PD-1) expressed by activated T lymphocytes inhibits their function and is a major mechanism for suppressing antitumor T cell responses in the tumor microenvironment. Recent clinical trials show that blockade of the B7-H1(programmed death ligand 1 [PD-L1])/PD-1 pathway with anti-PD-1 or anti-PD-L1 is active in several malignancies and produces durable responses in a subset of patients. Clinical response to these agents may be limited by other mechanisms of T-lymphocyte suppression in the tumor microenvironment, or absence of a significant tumor-specific T cell response in the tumor. Combinations with other therapies are likely to address at least several of the major mechanisms of resistance, supported by abundant preclinical data in animal tumor model systems. The combination of anti-PD-1 with anti-CTLA-4 demonstrated promising activity in metastatic melanoma and is being tested in multiple other malignancies. Other combinations based on PD-1/PD-L1 blockade are either in early clinical development or in planning stages. Many of the combinations based on PD-1/PD-L1 blockade are expected to produce a higher incidence of autoimmune-like toxicities, but clinical experience with agents such as ipilimumab suggests that toxicities will be manageable and reversible and the overall risk-benefit ratio will be acceptable.
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24
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Ankri C, Shamalov K, Horovitz-Fried M, Mauer S, Cohen CJ. Human T Cells Engineered To Express a Programmed Death 1/28 Costimulatory Retargeting Molecule Display Enhanced Antitumor Activity. THE JOURNAL OF IMMUNOLOGY 2013; 191:4121-9. [DOI: 10.4049/jimmunol.1203085] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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25
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Bendle GM, Linnemann C, Bies L, Song JY, Schumacher TNM. Blockade of TGF-β Signaling Greatly Enhances the Efficacy of TCR Gene Therapy of Cancer. THE JOURNAL OF IMMUNOLOGY 2013; 191:3232-9. [DOI: 10.4049/jimmunol.1301270] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Abstract
T cells have the capacity to eradicate diseased cells, but tumours present considerable challenges that render T cells ineffectual. Cancer cells often make themselves almost 'invisible' to the immune system, and they sculpt a microenvironment that suppresses T cell activity, survival and migration. Genetic engineering of T cells can be used therapeutically to overcome these challenges. T cells can be taken from the blood of cancer patients and then modified with genes encoding receptors that recognize cancer-specific antigens. Additional genes can be used to enable resistance to immunosuppression, to extend survival and to facilitate the penetration of engineered T cells into tumours. Using genetic modification, highly active, self-propagating 'slayers' of cancer cells can be generated.
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Affiliation(s)
- Michael H Kershaw
- Cancer Immunology Research Program, Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria 3010, Australia. michael.kershaw@ petermac.org
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27
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Wu YL, Liang J, Zhang W, Tanaka Y, Sugiyama H. Immunotherapies: the blockade of inhibitory signals. Int J Biol Sci 2012; 8:1420-30. [PMID: 23197939 PMCID: PMC3509335 DOI: 10.7150/ijbs.5273] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Accepted: 11/06/2012] [Indexed: 12/30/2022] Open
Abstract
T lymphocytes require signaling by the T cell receptor and by nonclonotypic cosignaling receptors. The costimulatory and inhibitory signals profoundly influence the course of immune responses by amplifying or reducing the transcriptional effects of T cell receptor triggering. The inhibitory receptors such as CTLA-4, PD-1, and BTLA have recently drawn much attention as potential targets for immunotherapies. This review focuses on the progress that has been made with the mentioned receptors in the field of immunotherapies for autoimmune diseases, malignancies, infectious diseases, and transplantation.
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MESH Headings
- Abatacept
- Animals
- Antigens, Differentiation/chemistry
- Antigens, Differentiation/genetics
- Antigens, Differentiation/immunology
- B7-H1 Antigen/antagonists & inhibitors
- B7-H1 Antigen/metabolism
- B7-H1 Antigen/physiology
- CD28 Antigens/immunology
- CD28 Antigens/metabolism
- CTLA-4 Antigen/chemistry
- CTLA-4 Antigen/genetics
- CTLA-4 Antigen/immunology
- Immunoconjugates/pharmacology
- Immunoconjugates/therapeutic use
- Immunosuppressive Agents/pharmacology
- Immunosuppressive Agents/therapeutic use
- Immunotherapy/trends
- Mice
- Programmed Cell Death 1 Receptor
- Receptors, Immunologic/chemistry
- Receptors, Immunologic/genetics
- Receptors, Immunologic/immunology
- Receptors, Tumor Necrosis Factor, Member 14/metabolism
- Receptors, Tumor Necrosis Factor, Member 14/physiology
- Signal Transduction/drug effects
- Transplantation Immunology
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Affiliation(s)
- Yan-Ling Wu
- 1. Virus Inspection Department of Zhejiang Provincial Center for Disease Control and Prevention, 630 Xincheng Road, Hangzhou, 310051, China
| | - Jing Liang
- 2. Department of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Wen Zhang
- 2. Department of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Yoshimasa Tanaka
- 3. Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Hiroshi Sugiyama
- 4. Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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Seliger B, Quandt D. The expression, function, and clinical relevance of B7 family members in cancer. Cancer Immunol Immunother 2012; 61:1327-41. [PMID: 22695874 PMCID: PMC11028783 DOI: 10.1007/s00262-012-1293-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 05/27/2012] [Indexed: 02/07/2023]
Abstract
The modulation and suppression of anti-tumor immune responses is a characteristic feature of tumor cells to escape immune surveillance. Members of the B7 family are involved in this process, since the level of activation of the anti-tumor immune response depends on the balance between co-stimulatory and co-inhibitory signals. Some molecules are often overexpressed in tumors, which has been associated with the pathogenesis and progression of malignancies as well as their immunological and non-immunological functions. The B7 homologs play a key role in the maintenance of self-tolerance and the regulation of both innate and adaptive immunity in tumor-bearing hosts. Furthermore, the blockade of negative signals mediated by the interaction of co-inhibitory ligands and counter-receptors of the B7 family is currently being studied as a potential immunotherapeutic strategy for the treatment of cancer in humans.
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Affiliation(s)
- Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 2, Halle (Saale), Germany.
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29
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Genetic engineering with T cell receptors. Adv Drug Deliv Rev 2012; 64:756-62. [PMID: 22178904 DOI: 10.1016/j.addr.2011.11.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Accepted: 11/21/2011] [Indexed: 01/08/2023]
Abstract
In the past two decades, human gene transfer research has been translated from a laboratory technology to clinical evaluation. The success of adoptive transfer of tumor-reactive lymphocytes to treat the patients with metastatic melanoma has led to new strategies to redirect normal T cells to recognize tumor antigens by genetic engineering with tumor antigen-specific T cell receptor (TCR) genes. This new strategy can generate large numbers of defined antigen-specific cells for therapeutic application. Much progress has been made to TCR gene transfer systems by optimizing gene expression and gene transfer protocols. Vector and protein modifications have enabled excellent expression of introduced TCR chains in human lymphocytes with reduced mis-pairing between the introduced and endogenous TCR chains. Initial clinical studies have demonstrated that TCR gene-engineered T cells could mediate tumor regression in vivo. In this review, we discuss the progress and prospects of TCR gene-engineered T cells as a therapeutic strategy for treating patients with melanoma and other cancers.
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Grzywnowicz M, Giannopoulos K. Znaczenie receptora programowanej śmierci 1 oraz jego ligandów w układzie immunologicznym oraz nowotworach. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/s0001-5814(12)32008-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Shirakura Y, Mizuno Y, Wang L, Imai N, Amaike C, Sato E, Ito M, Nukaya I, Mineno J, Takesako K, Ikeda H, Shiku H. T-cell receptor gene therapy targeting melanoma-associated antigen-A4 inhibits human tumor growth in non-obese diabetic/SCID/γcnull mice. Cancer Sci 2012; 103:17-25. [PMID: 21951605 PMCID: PMC11164177 DOI: 10.1111/j.1349-7006.2011.02111.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Adoptive cell therapy with lymphocytes that have been genetically engineered to express tumor-reactive T-cell receptors (TCR) is a promising approach for cancer immunotherapy. We have been exploring the development of TCR gene therapy targeting cancer/testis antigens, including melanoma-associated antigen (MAGE) family antigens, that are ideal targets for adoptive T-cell therapy. The efficacy of TCR gene therapy targeting MAGE family antigens, however, has not yet been evaluated in vivo. Here, we demonstrate the in vivo antitumor activity in immunodeficient non-obese diabetic/SCID/γc(null) (NOG) mice of human lymphocytes genetically engineered to express TCR specific for the MAGE-A4 antigen. Polyclonal T cells derived from human peripheral blood mononuclear cells were transduced with the αβ TCR genes specific for MAGE-A4, then adoptively transferred into NOG mice inoculated with MAGE-A4 expressing human tumor cell lines. The transferred T cells maintained their effector function in vivo, infiltrated into tumors, and inhibited tumor growth in an antigen-specific manner. The combination of adoptive cell therapy with antigen peptide vaccination enhanced antitumor activity, with improved multifunctionality of the transferred cells. These data suggest that TCR gene therapy with MAGE-A4-specific TCR is a promising strategy to treat patients with MAGE-A4-expressing tumors; in addition, the acquisition of multifunctionality in vivo is an important factor to predict the quality of the T-cell response during adoptive therapy with human lymphocytes.
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MESH Headings
- Animals
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- CD8-Positive T-Lymphocytes/immunology
- Combined Modality Therapy
- Cytotoxicity, Immunologic/immunology
- Esophageal Neoplasms/immunology
- Esophageal Neoplasms/therapy
- Female
- Flow Cytometry
- Genetic Therapy
- Genetic Vectors/therapeutic use
- HLA-A Antigens/genetics
- HLA-A Antigens/immunology
- Humans
- Immunoenzyme Techniques
- Immunotherapy, Adoptive
- Leukocytes, Mononuclear/immunology
- Lung Neoplasms/immunology
- Lung Neoplasms/therapy
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Retroviridae
- Transduction, Genetic
- Vaccines, Subunit/therapeutic use
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Affiliation(s)
- Yoshitaka Shirakura
- Department of Cancer Vaccine, Mie University Graduate School of Medicine, Tsu, Japan
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Ikeda H, Shiku H. Antigen-receptor gene-modified T cells for treatment of glioma. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2012; 746:202-15. [PMID: 22639170 DOI: 10.1007/978-1-4614-3146-6_16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Immunological effector cells and molecules have been shown to access intracranial tumor sites despite the existence of blood brain barrier (BBB) or immunosuppressive mechanisms associated with brain tumors. Recent progress in T-cell biology and tumor immunology made possible to develop strategies of tumor-associated antigen-specific immunotherapeutic approaches such as vaccination with defined antigens and adoptive T-cell therapy with antigen-specific T cells including gene-modified T cells for the treatment of patients with brain tumors. An array of recent reports on the trials of active and passive immunotherapy for patients with brain tumors have documented safety and some preliminary clinical efficacy, although the ultimate judgment for clinical benefits awaits rigorous evaluation in trials of later phases. Nevertheless, treatment with lymphocytes that are engineered to express tumor-specific receptor genes is a promising immunotherapy against glioma, based on the significant efficacy reported in the trials for patients with other types of malignancy. Overcoming the relative difficulty to apply immunotherapeutic approach to intracranial region, current advances in the understanding of human tumor immunology and the gene-therapy methodology will address the development of effective immunotherapy of brain tumors.
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Affiliation(s)
- Hiroaki Ikeda
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Japan.
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Merhavi-Shoham E, Haga-Friedman A, Cohen CJ. Genetically modulating T-cell function to target cancer. Semin Cancer Biol 2011; 22:14-22. [PMID: 22210183 DOI: 10.1016/j.semcancer.2011.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 12/15/2011] [Indexed: 12/14/2022]
Abstract
The adoptive transfer of tumor-specific T-lymphocytes holds promise for the treatment of metastatic cancer. Genetic modulation of T-lymphocytes using TCR transfer with tumor-specific TCR genes is an attractive strategy to generate anti-tumor response, especially against large solid tumors. Recently, several clinical trials have demonstrated the therapeutic potential of this approach which lead to impressive tumor regression in cancer patients. Still, several factors may hinder the clinical benefit of this approach, such as the type of cells to modulate, the vector configuration or the safety of the procedure. In the present review we will aim at giving an overview of the recent developments related to the immune modulation of the anti-tumor adaptive response using genetically engineered lymphocytes and will also elaborate the development of other genetic modifications to enhance their anti-tumor immune response.
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Affiliation(s)
- Efrat Merhavi-Shoham
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 52900, Israel
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Iwamura K, Kato T, Miyahara Y, Naota H, Mineno J, Ikeda H, Shiku H. siRNA-mediated silencing of PD-1 ligands enhances tumor-specific human T-cell effector functions. Gene Ther 2011; 19:959-66. [DOI: 10.1038/gt.2011.185] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Hasan A, Ghebeh H, Lehe C, Ahmad R, Dermime S. Therapeutic targeting of B7-H1 in breast cancer. Expert Opin Ther Targets 2011; 15:1211-25. [PMID: 21870995 DOI: 10.1517/14728222.2011.613826] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Breast cancer is the most common form of malignancy occurring in women worldwide. B7-H1 is a co-inhibitory molecule expressed by several types of tumors, including breast cancer. The aberrant expression of B7-H1 in breast cancer cells has been determined, its role in recruiting regulatory T cells into the tumor microenvironment has been elucidated and a strong link to B7-H1 induction in highly proliferative breast cancer has been provided. It has also been demonstrated that doxorubicin, a drug commonly used for breast cancer treatment, downregulates the cell surface expression of B7-H1 and upregulates its nuclear expression, which therefore suggests an anti-apoptotic role of B7-H1 in breast cancer. AREAS COVERED This review illustrates the various factors involved in the induction of B7-H1 and its role in immune evasion and chemoresistance. It also provides potential therapeutic strategies for targeting B7-H1 in breast cancer. EXPERT OPINION B7-H1 should be considered as a potential therapeutic target for breast cancer. Indeed, there is increasing evidence for the potential efficacy of B7-H1 blockade in the prevention of immune evasion by cancer cells. Additionally, B7-H1 targeting can be used in conjunction with other therapeutic modalities for improved efficacy and reduced toxicity. We expect that B7-H1 blockade in combination with other therapeutics will be a prime therapeutic strategy in the future.
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Affiliation(s)
- Amal Hasan
- Dasman Diabetes Institute , Immunology & Innovative Cell Therapy Unit , Department of Biomedical Research , Dasman , Kuwait
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Abstract
T-cell receptor (TCR) gene therapy aims to induce immune reactivity against tumors by introducing genes encoding a tumor-reactive TCR into patient T cells. This approach has been extensively tested in preclinical mouse models, and initial clinical trials have demonstrated the feasibility and potential of TCR gene therapy as a cancer treatment. However, data obtained from preclinical and clinical studies suggest that both the therapeutic efficacy and the safety of TCR gene therapy can be and needs to be further enhanced. This review highlights those strategies that can be followed to develop TCR gene therapy into a clinically relevant treatment option for cancer patients.
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Nesbeth Y, Conejo-Garcia JR. Harnessing the effect of adoptively transferred tumor-reactive T cells on endogenous (host-derived) antitumor immunity. Clin Dev Immunol 2010; 2010:139304. [PMID: 21076522 PMCID: PMC2975067 DOI: 10.1155/2010/139304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Accepted: 08/05/2010] [Indexed: 12/21/2022]
Abstract
Adoptive T cell transfer therapy, the ex vivo activation, expansion, and subsequent administration of tumor-reactive T cells, is already the most effective therapy against certain types of cancer. However, recent evidence in animal models and clinical trials suggests that host conditioning interventions tailored for some of the most aggressive and frequent epithelial cancers will be needed to maximize the benefit of this approach. Similarly, the subsets, stage of differentiation, and ex vivo expansion procedure of tumor-reactive T cells to be adoptively transferred influence their in vivo effectiveness and may need to be adapted for different types of cancer and host conditioning interventions. The effects of adoptively transferred tumor-reactive T cells on the mechanisms of endogenous (host-derived) antitumor immunity, and how to maximize their combined effects, are further discussed.
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Affiliation(s)
- Yolanda Nesbeth
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, NH 03756, USA
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Abstract
Programmed cell death-1 (PD-1) is a member of the CD28 superfamily that delivers negative signals upon interaction with its two ligands, PD-L1 or PD-L2. PD-1 and its ligands are broadly expressed and exert a wider range of immunoregulatory roles in T cells activation and tolerance compared with other CD28 members. Subsequent studies show that PD-1-PD-L interaction regulates the induction and maintenance of peripheral tolerance and protect tissues from autoimmune attack. PD-1 and its ligands are also involved in attenuating infectious immunity and tumor immunity, and facilitating chronic infection and tumor progression. The biological significance of PD-1 and its ligand suggests the therapeutic potential of manipulation of PD-1 pathway against various human diseases. In this review, we summarize our current understanding of PD-1 and its ligands ranging from discovery to clinical significance.
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