1
|
Li Z, Zhang Z, Fang L, Zhao J, Niu Z, Chen H, Cao G. Tumor Microenvironment Composition and Related Therapy in Hepatocellular Carcinoma. J Hepatocell Carcinoma 2023; 10:2083-2099. [PMID: 38022729 PMCID: PMC10676104 DOI: 10.2147/jhc.s436962] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/10/2023] [Indexed: 12/01/2023] Open
Abstract
Globally, primary liver cancer is the third leading cause of cancer death, and hepatocellular carcinoma (HCC) accounts for 75%-95%. The tumor microenvironment (TME), composed of the extracellular matrix, helper cells, immune cells, cytokines, chemokines, and growth factors, promotes the immune escape, invasion, and metastasis of HCC. Tumor metastasis and postoperative recurrence are the main threats to the long-term prognosis of HCC. TME-related therapies are increasingly recognized as effective treatments. Molecular-targeted therapy, immunotherapy, and their combined therapy are the main approaches. Immunotherapy, represented by immune checkpoint inhibitors (ICIs), and targeted therapy, highlighted by tyrosine kinase inhibitors (TKIs), have greatly improved the prognosis of HCC. This review focuses on the TME compositions and emerging therapeutic approaches to TME in HCC.
Collapse
Affiliation(s)
- Zishuai Li
- Key Laboratory of Biological Defense, Ministry of Education, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Shanghai Key Laboratory of Medical Bioprotection, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, People’s Republic of China
| | - Zihan Zhang
- Department of Epidemiology, Tongji University School of Medicine Tongji University, Shanghai, 200120, People’s Republic of China
| | - Letian Fang
- Key Laboratory of Biological Defense, Ministry of Education, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Shanghai Key Laboratory of Medical Bioprotection, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, People’s Republic of China
| | - Jiayi Zhao
- Key Laboratory of Biological Defense, Ministry of Education, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Shanghai Key Laboratory of Medical Bioprotection, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, People’s Republic of China
| | - Zheyun Niu
- Department of Epidemiology, Tongji University School of Medicine Tongji University, Shanghai, 200120, People’s Republic of China
| | - Hongsen Chen
- Key Laboratory of Biological Defense, Ministry of Education, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Shanghai Key Laboratory of Medical Bioprotection, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, People’s Republic of China
| | - Guangwen Cao
- Key Laboratory of Biological Defense, Ministry of Education, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Shanghai Key Laboratory of Medical Bioprotection, Second Military Medical University, Shanghai, 200433, People’s Republic of China
- Department of Epidemiology, Second Military Medical University, Shanghai, 200433, People’s Republic of China
| |
Collapse
|
2
|
Zhang C, Sheng Y, Sun X, Wang Y. New insights for gynecological cancer therapies: from molecular mechanisms and clinical evidence to future directions. Cancer Metastasis Rev 2023; 42:891-925. [PMID: 37368179 PMCID: PMC10584725 DOI: 10.1007/s10555-023-10113-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 05/22/2023] [Indexed: 06/28/2023]
Abstract
Advanced and recurrent gynecological cancers lack effective treatment and have poor prognosis. Besides, there is urgent need for conservative treatment for fertility protection of young patients. Therefore, continued efforts are needed to further define underlying therapeutic targets and explore novel targeted strategies. Considerable advancements have been made with new insights into molecular mechanisms on cancer progression and breakthroughs in novel treatment strategies. Herein, we review the research that holds unique novelty and potential translational power to alter the current landscape of gynecological cancers and improve effective treatments. We outline the advent of promising therapies with their targeted biomolecules, including hormone receptor-targeted agents, inhibitors targeting epigenetic regulators, antiangiogenic agents, inhibitors of abnormal signaling pathways, poly (ADP-ribose) polymerase (PARP) inhibitors, agents targeting immune-suppressive regulators, and repurposed existing drugs. We particularly highlight clinical evidence and trace the ongoing clinical trials to investigate the translational value. Taken together, we conduct a thorough review on emerging agents for gynecological cancer treatment and further discuss their potential challenges and future opportunities.
Collapse
Affiliation(s)
- Chunxue Zhang
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 People’s Republic of China
- Shanghai Municipal Key Clinical Specialty, Female Tumor Reproductive Specialty, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Yaru Sheng
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 People’s Republic of China
- Shanghai Municipal Key Clinical Specialty, Female Tumor Reproductive Specialty, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Xiao Sun
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 People’s Republic of China
- Shanghai Municipal Key Clinical Specialty, Female Tumor Reproductive Specialty, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Yudong Wang
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 People’s Republic of China
- Shanghai Municipal Key Clinical Specialty, Female Tumor Reproductive Specialty, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| |
Collapse
|
3
|
Anang V, Singh A, Kottarath SK, Verma C. Receptors of immune cells mediates recognition for tumors. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 194:219-267. [PMID: 36631194 DOI: 10.1016/bs.pmbts.2022.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Over the last few decades, the immune system has been steered toward eradication of cancer cells with the help of cancer immunotherapy. T cells, B cells, monocytes/macrophages, dendritic cells, T-reg cells, and natural killer (NK) cells are some of the numerous immune cell types that play a significant part in cancer cell detection and reduction of inflammation, and the antitumor response. Briefly stated, chimeric antigen receptors, adoptive transfer and immune checkpoint modulators are currently the subjects of research focus for successful immunotherapy-based treatments for a variety of cancers. This chapter discusses ongoing investigations on the mechanisms and recent developments by which receptors of immune cells especially that of lymphocytes and monocytes/macrophages regulate the detection of immune system leading to malignancies. We will also be looking into the treatment strategies based on these mechanisms.
Collapse
Affiliation(s)
- Vandana Anang
- International Center for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | | | - Sarat Kumar Kottarath
- Department of Experimental Therapeutics, MD Anderson Cancer Center, Huston, TX, United States.
| | - Chaitenya Verma
- Department of Pathology, Wexner Medical Center, Ohio State University, Columbus, OH, United States.
| |
Collapse
|
4
|
Liu G, Chen H, Cao X, Jia L, Rui W, Zheng H, Huang D, Liu F, Liu Y, Zhao X, Lu P, Lin X. Efficacy of pp65-specific TCR-T cell therapy in treating cytomegalovirus infection after hematopoietic stem cell transplantation. Am J Hematol 2022; 97:1453-1463. [PMID: 36054234 DOI: 10.1002/ajh.26708] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/15/2022] [Accepted: 08/21/2022] [Indexed: 01/28/2023]
Abstract
Cytomegalovirus (CMV) infection remains a major cause of mortality after hematopoietic stem cell transplantation (HSCT). Current treatments, including antiviral drugs and adoptive cell therapy with CMV-specific cytotoxic T lymphocytes (CTLs), only show limited benefits in patients. T-cell receptor (TCR)-T cell therapy offers a promising option to treat CMV infections. Here, using tetramer-based screening and single-cell TCR cloning technologies, we identified various CMV antigen-specific TCRs from healthy donors, and generated TCR-T cells targeting multiple pp65 epitopes corresponding to three major HLA-A alleles. The TCR-T cells showed efficient cytotoxicity toward epitope-expressing target cells in vitro. After transfer into immune-deficient mice bearing pp65+ HLA+ tumor cells, TCR-T cells induced dramatic tumor regression and exhibited long-term persistence. In a phase I clinical trial (NCT04153279), CMV TCR-T cells were applied to treat patients with CMV reactivation after HSCT. Except one patient who withdrew at early treatment stage, all other six patients were well-tolerated and achieved complete response (CR), no more than grade 2 cytokine release syndrome (CRS) and other adverse events were observed. CMV TCR-T cells persisted up to 3 months. Among them, two patients have survived for more than 1 year. This study demonstrates the great potential in the treatment and prevention of CMV infection following HSCT or other organ transplantation.
Collapse
Affiliation(s)
- Guangna Liu
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,School of Biomedical Sciences, Hunan University, Changsha, China
| | - Hua Chen
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,BriStar Immunotech Co, Beijing, China
| | - Xingyu Cao
- Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Lemei Jia
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Wei Rui
- BriStar Immunotech Co, Beijing, China
| | | | - Daosheng Huang
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| | - Fang Liu
- BriStar Immunotech Co, Beijing, China
| | - Yue Liu
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Xueqiang Zhao
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China.,BriStar Immunotech Co, Beijing, China
| | - Peihua Lu
- Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Xin Lin
- Department of Basic Medical Sciences and Institute for Immunology, Tsinghua University School of Medicine, Beijing, China
| |
Collapse
|
5
|
Zhang Y, Liu Z, Wei W, Li Y. TCR engineered T cells for solid tumor immunotherapy. Exp Hematol Oncol 2022; 11:38. [PMID: 35725570 PMCID: PMC9210724 DOI: 10.1186/s40164-022-00291-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/09/2022] [Indexed: 11/26/2022] Open
Abstract
T cell immunotherapy remains an attractive approach for cancer immunotherapy. T cell immunotherapy mainly employs chimeric antigen receptor (CAR)- and T cell receptor (TCR)-engineered T cells. CAR-T cell therapy has been an essential breakthrough in treating hematological malignancies. TCR-T cells can recognize antigens expressed both on cell surfaces and in intracellular compartments. Although TCR-T cells have not been approved for clinical application, a number of clinical trials have been performed, particularly for solid tumors. In this article, we summarized current TCR-T cell advances and their potential advantages for solid tumor immunotherapy.
Collapse
Affiliation(s)
- Yikai Zhang
- Guangzhou Municipality Tianhe Nuoya Bio-engineering Co. Ltd, Guangzhou, 510663, China.,Guangdong Cord blood bank, Guangzhou, 510663, China.,Department of Hematology, First Affiliated Hospital, Jinan University, Guangzhou, 510632, China.,Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, 601 Huang Pu Da Dao Xi, Guangzhou, 510632, China
| | - Zhipeng Liu
- Guangzhou Municipality Tianhe Nuoya Bio-engineering Co. Ltd, Guangzhou, 510663, China.,Guangdong Cord blood bank, Guangzhou, 510663, China
| | - Wei Wei
- Guangzhou Municipality Tianhe Nuoya Bio-engineering Co. Ltd, Guangzhou, 510663, China. .,Guangdong Cord blood bank, Guangzhou, 510663, China.
| | - Yangqiu Li
- Department of Hematology, First Affiliated Hospital, Jinan University, Guangzhou, 510632, China. .,Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, 601 Huang Pu Da Dao Xi, Guangzhou, 510632, China.
| |
Collapse
|
6
|
Ding Y, Liu G, An Y. Stability and bifurcation analysis of a tumor-immune system with two delays and diffusion. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2022; 19:1154-1173. [PMID: 35135198 DOI: 10.3934/mbe.2022053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A tumor-immune system with diffusion and delays is proposed in this paper. First, we investigate the impact of delay on the stability of nonnegative equilibrium for the model with a single delay, and the system undergoes Hopf bifurcation when delay passes through some critical values. We obtain the normal form of Hopf bifurcation by applying the multiple time scales method for determining the stability and direction of bifurcating periodic solutions. Then, we study the tumor-immune model with two delays, and show the conditions under which the nontrivial equilibria are locally asymptotically stable. Thus, we can restrain the diffusion of tumor cells by controlling the time delay associated with the time of tumor cell proliferation and the time of immune cells recognizing tumor cells. Finally, numerical simulations are presented to illustrate our analytic results.
Collapse
Affiliation(s)
- Yuting Ding
- College of Science, Northeast Forestry University, Harbin, 150040, China
| | - Gaoyang Liu
- College of Science, Northeast Forestry University, Harbin, 150040, China
| | - Yong An
- College of Science, Northeast Forestry University, Harbin, 150040, China
| |
Collapse
|
7
|
Zhang Y, Yu X, Liu Q, Gong H, Chen AA, Zheng H, Zhong S, Li Y. SAGE1: a Potential Target Antigen for Lung Cancer T-Cell Immunotherapy. Mol Cancer Ther 2021; 20:2302-2313. [PMID: 34465596 DOI: 10.1158/1535-7163.mct-21-0203] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/17/2021] [Accepted: 08/25/2021] [Indexed: 12/24/2022]
Abstract
A fundamental understanding of cancer-specific antigens is crucial for successful T-cell immunotherapy. Sarcoma antigen 1 (SAGE1) is a cancer/testis antigen that has not yet been verified for T-cell immunotherapy applications. Here, we examined SAGE1 RNA expression and carried out IHC analyses, revealing that SAGE1 is expressed in 50% of non-small cell lung-cancer samples (n = 40). To verify the immunogenicity of SAGE1, we discovered a novel HLA-A*24:02 (HLA-A24)-restricted SAGE1 epitope (SAGE1597-606, VFSTAPPAFI) using mass spectrometry and identified SAGE1597-606-specific T-cell clones and T-cell receptors (TCR) from peripheral bloods of HLA-A24+ donors. The highest affinity TCR VF3 (KD = 4.3 μM) demonstrated the highest antitumor potency. Moreover, VF3-transduced T cells mediated the efficient killing of HLA-A24+/SAGE1+ tumor cells in vitro and effectively inhibited the growth of lung cancer xenografts in mice. Together, our data suggest that SAGE1 could be a target for T-cell immunotherapies against lung cancer, while its specific TCRs could be candidates for developing reagents to treat SAGE1+ tumors.
Collapse
Affiliation(s)
- Yajing Zhang
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiaohong Yu
- Xiangxue Pharmaceutical Co., Ltd., Guangzhou, Guangdong, China
| | - Qiuping Liu
- Xiangxue Pharmaceutical Co., Ltd., Guangzhou, Guangdong, China
| | - Haiping Gong
- Xiangxue Pharmaceutical Co., Ltd., Guangzhou, Guangdong, China
| | - An-An Chen
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Hongjun Zheng
- Xiangxue Pharmaceutical Co., Ltd., Guangzhou, Guangdong, China
| | - Shi Zhong
- Xiangxue Pharmaceutical Co., Ltd., Guangzhou, Guangdong, China.
| | - Yi Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.
- University of Chinese Academy of Sciences, Beijing, China
- Xiangxue Pharmaceutical Co., Ltd., Guangzhou, Guangdong, China
| |
Collapse
|
8
|
Lu F, Ma XJN, Jin WL, Luo Y, Li X. Neoantigen Specific T Cells Derived From T Cell-Derived Induced Pluripotent Stem Cells for the Treatment of Hepatocellular Carcinoma: Potential and Challenges. Front Immunol 2021; 12:690565. [PMID: 34054880 PMCID: PMC8155510 DOI: 10.3389/fimmu.2021.690565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 04/22/2021] [Indexed: 12/30/2022] Open
Abstract
Immunotherapy has become an indispensable part of the comprehensive treatment of hepatocellular carcinoma (HCC). Immunotherapy has proven effective in patients with early HCC, advanced HCC, or HCC recurrence after liver transplantation. Clinically, the most commonly used immunotherapy is immune checkpoint inhibition using monoclonal antibodies, such as CTLA-4 and PD-1. However, it cannot fundamentally solve the problems of a weakened immune system and inactivation of immune cells involved in killing tumor cells. T cells can express tumor antigen-recognizing T cell receptors (TCRs) or chimeric antigen receptors (CARs) on the cell surface through gene editing to improve the specificity and responsiveness of immune cells. According to previous studies, TCR-T cell therapy is significantly better than CAR-T cell therapy in the treatment of solid tumors and is one of the most promising immune cell therapies for solid tumors so far. However, its application in the treatment of HCC is still being researched. Technological advancements in induction and redifferentiation of induced pluripotent stem cells (iPSCs) allow us to use T cells to induce T cell-derived iPSCs (T-iPSCs) and then differentiate them into TCR-T cells. This has allowed a convenient strategy to study HCC models and explore optimal treatment strategies. This review gives an overview of the major advances in the development of protocols to generate neoantigen-specific TCR-T cells from T-iPSCs. We will also discuss their potential and challenges in the treatment of HCC.
Collapse
Affiliation(s)
- Fei Lu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xiao-Jing-Nan Ma
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, China
| | - Wei-Lin Jin
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, China.,Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yang Luo
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xun Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, China.,Hepatopancreatobiliary Surgery Institute of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, China.,Health Science Center, Lanzhou University, Lanzhou, China.,Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
| |
Collapse
|
9
|
Shofolawe-Bakare OT, Stokes LD, Hossain M, Smith AE, Werfel TA. Immunostimulatory biomaterials to boost tumor immunogenicity. Biomater Sci 2020; 8:5516-5537. [PMID: 33049007 PMCID: PMC7837217 DOI: 10.1039/d0bm01183e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cancer immunotherapy is exhibiting great promise as a new therapeutic modality for cancer treatment. However, immunotherapies are limited by the inability of some tumors to provoke an immune response. These tumors with a 'cold' immunological phenotype are characterized by low numbers of tumor-infiltrating lymphocytes, high numbers of immunosuppressive leukocytes (e.g. regulatory T cells, tumor-associated macrophages), and high production of immune-dampening signals (e.g. IL-10, TGF-β, IDO-1). Strategies to boost the aptitude of tumors to initiate an immune response (i.e. boost tumor immunogenicity) will turn 'cold' tumors 'hot' and augment the anti-tumor efficacy of current immunotherapies. Approaches to boost tumor immunogenicity already show promise; however, multifaceted delivery and immunobiology challenges exist. For instance, systemic delivery of many immune-stimulating agents causes off-target toxicity and/or the development of autoimmunity, limiting the administrable dose below the threshold needed to achieve efficacy. Moreover, once administered in vivo, molecules such as the nucleic acid-based agonists for many pattern recognition receptors are either rapidly cleared or degraded, and don't efficiently traffic to the intracellular compartments where the receptors are located. Thus, these nucleic acid-based drugs are ineffective without a delivery system. Biomaterials-based approaches aim to enhance current strategies to boost tumor immunogenicity, enable novel strategies, and spare dose-limiting toxicities. Here, we review recent progress to improve cancer immunotherapies by boosting immunogenicity within tumors using immunostimulatory biomaterials.
Collapse
|
10
|
Rafia C, Harly C, Scotet E. Beyond CAR T cells: Engineered Vγ9Vδ2 T cells to fight solid tumors. Immunol Rev 2020; 298:117-133. [DOI: 10.1111/imr.12920] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/21/2020] [Accepted: 08/28/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Chirine Rafia
- INSERMCNRSCRCINAUniversité de Nantes Nantes France
- LabEx IGO “Immunotherapy, Graft, Oncology” Nantes France
- ImCheck Therapeutics Marseille France
| | - Christelle Harly
- INSERMCNRSCRCINAUniversité de Nantes Nantes France
- LabEx IGO “Immunotherapy, Graft, Oncology” Nantes France
| | - Emmanuel Scotet
- INSERMCNRSCRCINAUniversité de Nantes Nantes France
- LabEx IGO “Immunotherapy, Graft, Oncology” Nantes France
| |
Collapse
|
11
|
Towards new horizons: characterization, classification and implications of the tumour antigenic repertoire. Nat Rev Clin Oncol 2020; 17:595-610. [PMID: 32572208 PMCID: PMC7306938 DOI: 10.1038/s41571-020-0387-x] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2020] [Indexed: 12/21/2022]
Abstract
Immune-checkpoint inhibition provides an unmatched level of durable clinical efficacy in various malignancies. Such therapies promote the activation of antigen-specific T cells, although the precise targets of these T cells remain unknown. Exploiting these targets holds great potential to amplify responses to treatment, such as by combining immune-checkpoint inhibition with therapeutic vaccination or other antigen-directed treatments. In this scenario, the pivotal hurdle remains the definition of valid HLA-restricted tumour antigens, which requires several levels of evidence before targets can be established with sufficient confidence. Suitable antigens might include tumour-specific antigens with alternative or wild-type sequences, tumour-associated antigens and cryptic antigens that exceed exome boundaries. Comprehensive antigen classification is required to enable future clinical development and the definition of innovative treatment strategies. Furthermore, clinical development remains challenging with regard to drug manufacturing and regulation, as well as treatment feasibility. Despite these challenges, treatments based on diligently curated antigens combined with a suitable therapeutic platform have the potential to enable optimal antitumour efficacy in patients, either as monotherapies or in combination with other established immunotherapies. In this Review, we summarize the current state-of-the-art approaches for the identification of candidate tumour antigens and provide a structured terminology based on their underlying characteristics. Immune-checkpoint inhibition has transformed the treatment of patients with advanced-stage cancers. Nonetheless, the specific antigens targeted by T cells that are activated or reactivated by these agents remain largely unknown. In this Review, the authors describe the characterization and classification of tumour antigens including descriptions of the most appropriate detection methods, and discuss potential regulatory issues regarding the use of tumour antigen-based therapeutics. Immune-checkpoint inhibition has profoundly changed the paradigm for the care of several malignancies. Although these therapies activate antigen-specific T cells, the precise mechanisms of action and their specific targets remain largely unknown. Anticancer immunotherapies encompass two fundamentally different therapeutic principles based on knowledge of their therapeutic targets, that either have been characterized (antigen-aware) or have remained elusive (antigen-unaware). HLA-presented tumour antigens of potential therapeutic relevance can comprise alternative or wild-type amino acid sequences and can be subdivided into different categories based on their mechanisms of formation. The available methods for the detection of HLA-presented antigens come with intrinsic challenges and limitations and, therefore, warrant multiple lines of evidence of robust tumour specificity before being considered for clinical use. Knowledge obtained using various antigen-detection strategies can be combined with different therapeutic platforms to create individualized therapies that hold great promise, including when combined with already established immunotherapies. Tailoring immunotherapies while taking into account the substantial heterogeneity of malignancies as well as that of HLA loci not only requires innovative science, but also demands innovative approaches to trial design and drug regulation.
Collapse
|