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Srivastava S, Singh S, Singh A. Augmenting the landscape of chimeric antigen receptor T-cell therapy. Expert Rev Anticancer Ther 2024; 24:755-773. [PMID: 38912754 DOI: 10.1080/14737140.2024.2372330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/21/2024] [Indexed: 06/25/2024]
Abstract
INTRODUCTION The inception of recombinant DNA technology and live cell genomic alteration have paved the path for the excellence of cell and gene therapies and often provided the first curative treatment for many indications. The approval of the first Chimeric Antigen Receptor (CAR) T-cell therapy was one of the breakthrough innovations that became the headline in 2017. Currently, the therapy is primarily restricted to a few nations, and the market is growing at a CAGR (current annual growth rate) of 11.6% (2022-2032), as opposed to the established bio-therapeutic market at a CAGR of 15.9% (2023-2030). The limited technology democratization is attributed to its autologous nature, lack of awareness, therapy inclusion criteria, high infrastructure cost, trained personnel, complex manufacturing processes, regulatory challenges, recurrence of the disease, and long-term follow-ups. AREAS COVERED This review discusses the vision and strategies focusing on the CAR T-cell therapy democratization with mitigation plans. Further, it also covers the strategies to leverage the mRNA-based CAR T platform for building an ecosystem to ensure availability, accessibility, and affordability to the community. EXPERT OPINION mRNA-guided CAR T cell therapy is a rapidly growing area wherein a collaborative approach among the stakeholders is needed for its success.
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Affiliation(s)
| | - Sanjay Singh
- mRNA Department, Gennova Biopharmaceuticals Ltd. ITBT Park, Pune, India
| | - Ajay Singh
- mRNA Department, Gennova Biopharmaceuticals Ltd. ITBT Park, Pune, India
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Li Y, Hu Z, Li Y, Wu X. Charting new paradigms for CAR-T cell therapy beyond current Achilles heels. Front Immunol 2024; 15:1409021. [PMID: 38751430 PMCID: PMC11094207 DOI: 10.3389/fimmu.2024.1409021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 04/18/2024] [Indexed: 05/18/2024] Open
Abstract
Chimeric antigen receptor-T (CAR-T) cell therapy has made remarkable strides in treating hematological malignancies. However, the widespread adoption of CAR-T cell therapy is hindered by several challenges. These include concerns about the long-term and complex manufacturing process, as well as efficacy factors such as tumor antigen escape, CAR-T cell exhaustion, and the immunosuppressive tumor microenvironment. Additionally, safety issues like the risk of secondary cancers post-treatment, on-target off-tumor toxicity, and immune effector responses triggered by CAR-T cells are significant considerations. To address these obstacles, researchers have explored various strategies, including allogeneic universal CAR-T cell development, infusion of non-activated quiescent T cells within a 24-hour period, and in vivo induction of CAR-T cells. This review comprehensively examines the clinical challenges of CAR-T cell therapy and outlines strategies to overcome them, aiming to chart pathways beyond its current Achilles heels.
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Affiliation(s)
- Ying Li
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenhua Hu
- Department of Health and Nursing, Nanfang College of Sun Yat-sen University, Guangzhou, China
| | - Yuanyuan Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyan Wu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Jiang W, Wang PY, Zhou Q, Lin QT, Yao Y, Huang X, Tan X, Yang S, Ye W, Yang Y, Bao YJ. Tri©DB: an integrated platform of knowledgebase and reporting system for cancer precision medicine. J Transl Med 2023; 21:885. [PMID: 38057859 PMCID: PMC10702018 DOI: 10.1186/s12967-023-04773-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND With the development of cancer precision medicine, a huge amount of high-dimensional cancer information has rapidly accumulated regarding gene alterations, diseases, therapeutic interventions and various annotations. The information is highly fragmented across multiple different sources, making it highly challenging to effectively utilize and exchange the information. Therefore, it is essential to create a resource platform containing well-aggregated, carefully mined, and easily accessible data for effective knowledge sharing. METHODS In this study, we have developed "Consensus Cancer Core" (Tri©DB), a new integrative cancer precision medicine knowledgebase and reporting system by mining and harmonizing multifaceted cancer data sources, and presenting them in a centralized platform with enhanced functionalities for accessibility, annotation and analysis. RESULTS The knowledgebase provides the currently most comprehensive information on cancer precision medicine covering more than 40 annotation entities, many of which are novel and have never been explored previously. Tri©DB offers several unique features: (i) harmonizing the cancer-related information from more than 30 data sources into one integrative platform for easy access; (ii) utilizing a variety of data analysis and graphical tools for enhanced user interaction with the high-dimensional data; (iii) containing a newly developed reporting system for automated annotation and therapy matching for external patient genomic data. Benchmark test indicated that Tri©DB is able to annotate 46% more treatments than two officially recognized resources, oncoKB and MCG. Tri©DB was further shown to have achieved 94.9% concordance with administered treatments in a real clinical trial. CONCLUSIONS The novel features and rich functionalities of the new platform will facilitate full access to cancer precision medicine data in one single platform and accommodate the needs of a broad range of researchers not only in translational medicine, but also in basic biomedical research. We believe that it will help to promote knowledge sharing in cancer precision medicine. Tri©DB is freely available at www.biomeddb.org , and is hosted on a cutting-edge technology architecture supporting all major browsers and mobile handsets.
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Affiliation(s)
- Wei Jiang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Peng-Ying Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Qi Zhou
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Qiu-Tong Lin
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Yao Yao
- Wuxi Shengrui Bio-Pharmaceuticals Co., Ltd, Wuxi, 214174, Jiangsu, China
| | - Xun Huang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Xiaoming Tan
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Shihui Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Weicai Ye
- School of Computer Science and Engineering, Sun Yat-Sen University, Guangzhou, 510000, China
- Guangdong Province Key Laboratory of Computational Science, and National Engineering Laboratory for Big Data Analysis and Application, Sun Yat-Sen University, Guangzhou, 510000, China
| | - Yuedong Yang
- School of Computer Science and Engineering, Sun Yat-Sen University, Guangzhou, 510000, China.
| | - Yun-Juan Bao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China.
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Lyu M, Chen J, Peng Y, Han F, Gong L, Guo J, Tian L, Gao Y. The global patent landscape of mRNA for diagnosis and therapy. Nat Biotechnol 2023; 41:1193-1199. [PMID: 37699990 DOI: 10.1038/s41587-023-01925-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Affiliation(s)
- Mengru Lyu
- Department of Clinical Pharmacy and Pharmaceutical Management, School of Pharmacy, Fudan University, Shanghai, China
- Department of Clinical Pharmacy, School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Jiyuan Chen
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yeheng Peng
- Department of Clinical Pharmacy and Pharmaceutical Management, School of Pharmacy, Fudan University, Shanghai, China
| | - Fang Han
- Department of Clinical Pharmacy, School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Luyao Gong
- Department of Clinical Pharmacy and Pharmaceutical Management, School of Pharmacy, Fudan University, Shanghai, China
| | - Jingfei Guo
- Department of Clinical Pharmacy, School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Lijuan Tian
- Department of Clinical Pharmacy, School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Yuan Gao
- Department of Clinical Pharmacy and Pharmaceutical Management, School of Pharmacy, Fudan University, Shanghai, China.
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Na YR, Kim SW, Seok SH. A new era of macrophage-based cell therapy. Exp Mol Med 2023; 55:1945-1954. [PMID: 37653035 PMCID: PMC10545778 DOI: 10.1038/s12276-023-01068-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 09/02/2023] Open
Abstract
Macrophages are essential innate immune cells found throughout the body that have protective and pathogenic functions in many diseases. When activated, macrophages can mediate the phagocytosis of dangerous cells or materials and participate in effective tissue regeneration by providing growth factors and anti-inflammatory molecules. Ex vivo-generated macrophages have thus been used in clinical trials as cell-based therapies, and based on their intrinsic characteristics, they outperformed stem cells within specific target diseases. In addition to the old methods of generating naïve or M2 primed macrophages, the recently developed chimeric antigen receptor-macrophages revealed the potential of genetically engineered macrophages for cell therapy. Here, we review the current developmental status of macrophage-based cell therapy. The findings of important clinical and preclinical trials are updated, and patent status is investigated. Additionally, we discuss the limitations and future directions of macrophage-based cell therapy, which will help broaden the potential utility and clinical applications of macrophages.
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Affiliation(s)
- Yi Rang Na
- Translational Immunology Laboratory, Department of Transdisciplinary Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Sang Wha Kim
- Macrophage Laboratory, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Seung Hyeok Seok
- Macrophage Laboratory, Department of Microbiology and Immunology, and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul, 110-799, South Korea.
- Department of Biomedical Sciences and Seoul National University College of Medicine, Seoul, Republic of Korea.
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea.
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Balke-Want H, Keerthi V, Gkitsas N, Mancini AG, Kurgan GL, Fowler C, Xu P, Liu X, Asano K, Patel S, Fisher CJ, Brown AK, Tunuguntla RH, Patel S, Sotillo E, Mackall CL, Feldman SA. Homology-independent targeted insertion (HITI) enables guided CAR knock-in and efficient clinical scale CAR-T cell manufacturing. Mol Cancer 2023; 22:100. [PMID: 37365642 DOI: 10.1186/s12943-023-01799-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 06/02/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND Chimeric Antigen Receptor (CAR) T cells are now standard of care (SOC) for some patients with B cell and plasma cell malignancies and could disrupt the therapeutic landscape of solid tumors. However, access to CAR-T cells is not adequate to meet clinical needs, in part due to high cost and long lead times for manufacturing clinical grade virus. Non-viral site directed CAR integration can be accomplished using CRISPR/Cas9 and double-stranded DNA (dsDNA) or single-stranded DNA (ssDNA) via homology-directed repair (HDR), however yields with this approach have been limiting for clinical application (dsDNA) or access to large yields sufficient to meet the manufacturing demands outside early phase clinical trials is limited (ssDNA). METHODS We applied homology-independent targeted insertion (HITI) or HDR using CRISPR/Cas9 and nanoplasmid DNA to insert an anti-GD2 CAR into the T cell receptor alpha constant (TRAC) locus and compared both targeted insertion strategies in our system. Next, we optimized post-HITI CRISPR EnrichMENT (CEMENT) to seamlessly integrate it into a 14-day process and compared our knock-in with viral transduced anti-GD2 CAR-T cells. Finally, we explored the off-target genomic toxicity of our genomic engineering approach. RESULTS Here, we show that site directed CAR integration utilizing nanoplasmid DNA delivered via HITI provides high cell yields and highly functional cells. CEMENT enriched CAR T cells to approximately 80% purity, resulting in therapeutically relevant dose ranges of 5.5 × 108-3.6 × 109 CAR + T cells. CRISPR knock-in CAR-T cells were functionally comparable with viral transduced anti-GD2 CAR-T cells and did not show any evidence of off-target genomic toxicity. CONCLUSIONS Our work provides a novel platform to perform guided CAR insertion into primary human T-cells using nanoplasmid DNA and holds the potential to increase access to CAR-T cell therapies.
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Affiliation(s)
- Hyatt Balke-Want
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Vimal Keerthi
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Nikolaos Gkitsas
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | | | - Gavin L Kurgan
- Integrated DNA Technologies, Inc, Coralville, IA, 52241, USA
| | - Carley Fowler
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Peng Xu
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Xikun Liu
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Kyle Asano
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Sunny Patel
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Christopher J Fisher
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Annie K Brown
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Ramya H Tunuguntla
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Shabnum Patel
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Elena Sotillo
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA
| | - Crystal L Mackall
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA.
| | - Steven A Feldman
- Stanford Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University, Stanford, CA, USA.
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Li Q, Xu J, Sun Q, Zhang Z, Hu Y, Yao H. The global patent landscape of HER2-targeted biologics. Nat Biotechnol 2023; 41:756-764. [PMID: 37316732 DOI: 10.1038/s41587-023-01814-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Qingjian Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Breast Tumor Centre, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jiaqi Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Qianshu Sun
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Zebang Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Breast Tumor Centre, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuanjia Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China.
- Department of Public Health and Medicinal Administration, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.
| | - Herui Yao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Breast Tumor Centre, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
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Shi C, Zhang Q, Yao Y, Zeng F, Du C, Nijiati S, Wen X, Zhang X, Yang H, Chen H, Guo Z, Zhang X, Gao J, Guo W, Chen X, Zhou Z. Targeting the activity of T cells by membrane surface redox regulation for cancer theranostics. NATURE NANOTECHNOLOGY 2023; 18:86-97. [PMID: 36536041 DOI: 10.1038/s41565-022-01261-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 10/12/2022] [Indexed: 06/17/2023]
Abstract
T cells play a determining role in the immunomodulation and prognostic evaluation of cancer treatments relying on immune activation. While specific biomarkers determine the population and distribution of T cells in tumours, the in situ activity of T cells is less studied. Here we designed T-cell-targeting fusogenic liposomes to regulate and quantify the activity of T cells by exploiting their surface redox status as a chemical target. The T-cell-targeting fusogenic liposomes equipped with 2,2,6,6-tetramethylpiperidine (TEMP) groups neutralize reactive oxygen species protecting T cells from oxidation-induced loss of activity. Meanwhile, the production of paramagnetic 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO) radicals allows magnetic resonance imaging quantification of the T cell activity. In multiple mouse models, the T-cell-targeting fusogenic liposomes led to efficient tumour inhibition and to early prediction of radiotherapy outcomes. This study uses a chemical targeting strategy to measure the in situ activity of T cells for cancer theranostics and may provide further understanding on engineering T cells for cancer treatment.
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Affiliation(s)
- Changrong Shi
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Qianyu Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Yuying Yao
- Department of Minimally Invasive Interventional Radiology, State Key Laboratory of Respiratory Disease, School of Biomedical Engineering & the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Fantian Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Chao Du
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Sureya Nijiati
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Xuejun Wen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Xinyi Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Hongzhang Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Haoting Chen
- Department of Minimally Invasive Interventional Radiology, State Key Laboratory of Respiratory Disease, School of Biomedical Engineering & the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Weisheng Guo
- Department of Minimally Invasive Interventional Radiology, State Key Laboratory of Respiratory Disease, School of Biomedical Engineering & the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore, Singapore.
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research (A*STAR), Singapore, Singapore.
| | - Zijian Zhou
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen, China.
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Li X, Dai H, Wang Y, Wu Z, Wang H, Qian W, Liang A, Han W. Regional empowerment through decentralised governance under a centralised regulatory system facilitates the development of cellular therapy in China. THE LANCET HAEMATOLOGY 2022; 9:e942-e954. [DOI: 10.1016/s2352-3026(22)00331-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/22/2022] [Accepted: 10/07/2022] [Indexed: 11/30/2022]
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Chen Y, Xiong SH, Li F, Kong XJ, Ouyang DF, Zheng Y, Yu H, Hu YJ. Delivery of therapeutic small interfering RNA: The current patent-based landscape. MOLECULAR THERAPY - NUCLEIC ACIDS 2022; 29:150-161. [PMID: 35847171 PMCID: PMC9263868 DOI: 10.1016/j.omtn.2022.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 06/15/2022] [Indexed: 11/17/2022]
Abstract
Implementing small interfering RNA (siRNA) is a promising therapy because it silences disease-related genes theoretically. However, the efficient delivery of siRNA is challenging, which limits its therapeutic applications. Various pharmaceutical delivery systems containing key technologies have been developed and patented, which are of great concern to developers in the field. Despite numerous studies devoted to siRNA-delivery technologies, few researchers have systematically examined relevant patents. Patents, as bridges connecting academic progress with applicable innovation, encapsulate cumulative technological innovations and provide valuable information for academic research and commercial development. This study aims to analyze advances in therapeutic siRNA delivery technology from a patent perspective. A total of 11,509 patent documents from 3,309 patent families were collected, classified into 10 technological categories, and comprehensively analyzed. An overall patent landscape of siRNA delivery was presented from the temporal, spatial, organizational, and technological dimensions. This work is expected to help researchers and developers in the field of siRNA delivery form a basis for decision-making by combining our findings with supplementary data.
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12
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Kong X, Zuo H, Huang HD, Zhang Q, Chen J, He C, Hu Y. STING as an emerging therapeutic target for drug discovery: Perspectives from the global patent landscape. J Adv Res 2022; 44:119-133. [PMID: 35636721 PMCID: PMC9936525 DOI: 10.1016/j.jare.2022.05.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 04/15/2022] [Accepted: 05/15/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The STimulator of INterferon Genes (STING) plays an essential role in the innate immune system by inducing the expression of type I interferons (IFNs) and inflammatory cytokines upon sensing cytosolic DNA. Although modulating STING has shown promise as a potential treatment for cancers and inflammatory and autoimmune diseases in substantial pre-clinical studies, current preliminary clinical results of STING agonists have demonstrated limited anti-tumor efficacy. Currently, there is ongoing R&D targeting STING and focusing on the delivery of next-generation therapeutics. Whereas no comprehensive analysis on the STING patent landscape has been conducted to fill the gap between basic research progress and drug development and commercialization. AIM OF REVIEW This study summarized the current agents in the clinical stage and global patenting profiles to help identify the current status, development trends, and emerging technologies of the nascent field of STING modulation. KEY SCIENTIFIC CONCEPTS OF REVIEW Rapidly increasing R&D efforts and outcomes targeting STING were indicated by the recently increasing number and pharmacologic classes of drug candidates in clinic as well as in emergent technological patenting activities. Despite the overall fragmental ownership of patents, several pioneers that have advanced the clinical evaluation of novel STING agonists have established the basis of STING-relevant inventions through their influential patents in the field. These patents also facilitated progress on novel STING modulators, relevant delivery systems, pharmaceutical compositions, and combination strategies with the potential for further enhancing therapeutic outcomes by targeting STING.
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Affiliation(s)
- Xiangjun Kong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China,Department of Public Health and Medicinal Administration, Faculty of Health Sciences, University of Macau, Macao 999078, China
| | - Huali Zuo
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong-Shenzhen, Shenzhen 518172, China,School of Life and Health Sciences, The Chinese University of Hong Kong-Shenzhen, Shenzhen 518172, China,School of Computer Science and Technology, University of Science and Technology of China, Hefei 230027, China
| | - Hsien-Da Huang
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong-Shenzhen, Shenzhen 518172, China,School of Life and Health Sciences, The Chinese University of Hong Kong-Shenzhen, Shenzhen 518172, China
| | - Qianru Zhang
- School of Pharmacy, Key Lab of the Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Guizhou 563000, China
| | - Jiayu Chen
- Department of Biochemistry and Molecular Biology, Zunyi Medical University, Guizhou 563000, China
| | - Chengwei He
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Yuanjia Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China; Department of Public Health and Medicinal Administration, Faculty of Health Sciences, University of Macau, Macao 999078, China.
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Nguyen A, Johanning G, Shi Y. Emerging Novel Combined CAR-T Cell Therapies. Cancers (Basel) 2022; 14:cancers14061403. [PMID: 35326556 PMCID: PMC8945996 DOI: 10.3390/cancers14061403] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 12/08/2022] Open
Abstract
Simple Summary As a result of FDA approval of CAR-T cell treatments in the last few years, this immunotherapy has provided further direction to precision medicine through its combination with other therapeutic approaches. In the past year, several review articles have been published focusing on advances in this fast-developing field, especially with respect to efforts to overcome hurdles associated with applying CAR-T cells in solid tumors. This review paper focuses on combining CAR-T cell therapy with small molecule drugs, up-to-date progress in CAR-T cell therapy research, and advances in combined CAR-T immunotherapy with other treatments targeting solid tumors. Abstract Chimeric antigen receptors (CAR) T cells are T cells engineered to express membrane receptors with high specificity to recognize specific target antigens presented by cancer cells and are co-stimulated with intracellular signals to increase the T cell response. CAR-T cell therapy is emerging as a novel therapeutic approach to improve T cell specificity that will lead to advances in precision medicine. CAR-T cells have had impressive outcomes in hematological malignancies. However, there continue to be significant limitations of these therapeutic responses in targeting solid malignancies such as heterogeneous antigens in solid tumors, tumor immunosuppressive microenvironment, risk of on-target/off-tumor, infiltrating CAR-T cells, immunosuppressive checkpoint molecules, and cytokines. This review paper summarizes recent approaches and innovations through combination therapies of CAR-T cells and other immunotherapy or small molecule drugs to counter the above disadvantages to potentiate the activity of CAR-T cells.
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Affiliation(s)
- Anh Nguyen
- College of Graduate Studies, California Northstate University, Elk Grove, CA 95757, USA;
| | | | - Yihui Shi
- College of Medicine, California Northstate University, Elk Grove, CA 95757, USA
- Correspondence:
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A cell-based phenotypic library selection and screening approach for the de novo discovery of novel functional chimeric antigen receptors. Sci Rep 2022; 12:1136. [PMID: 35064152 PMCID: PMC8782825 DOI: 10.1038/s41598-022-05058-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 01/03/2022] [Indexed: 11/16/2022] Open
Abstract
Anti-tumor therapies that seek to exploit and redirect the cytotoxic killing and effector potential of autologous or syngeneic T cells have shown extraordinary promise and efficacy in certain clinical settings. Such cells, when engineered to express synthetic chimeric antigen receptors (CARs) acquire novel targeting and activation properties which are governed and orchestrated by, typically, antibody fragments specific for a tumor antigen of interest. However, it is becoming increasingly apparent that not all antibodies are equal in this regard, with a growing appreciation that ‘optimal’ CAR performance requires a consideration of multiple structural and contextual parameters. Thus, antibodies raised by classical approaches and intended for other applications often perform poorly or not at all when repurposed as CARs. With this in mind, we have explored the potential of an in vitro phenotypic CAR library discovery approach that tightly associates antibody-driven bridging of tumor and effector T cells with an informative and functionally relevant CAR activation reporter signal. Critically, we demonstrate the utility of this enrichment methodology for ‘real world’ de novo discovery by isolating several novel anti-mesothelin CAR-active scFv candidates.
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Mohyuddin GR, Atieh T, Ahmed N, Sborov D, McClune B, Abdallah AO, Goodman AM, Aziz M, Allen I, Prasad V. Intention to treat versus modified intention-to-treat analysis in B-cell maturation antigen and CD19 chimeric antigen receptor trials: A systematic review and meta-analysis. Eur J Cancer 2021; 156:164-174. [PMID: 34454318 DOI: 10.1016/j.ejca.2021.07.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/22/2021] [Accepted: 07/27/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Chimeric antigen receptor T-cell therapy (CART) has revolutionised treatment of haematological malignancies; however, current reporting uses a modified intention-to-treat analysis (mITT) which over-estimates efficacy. We assessed what proportion of CD19 and B-cell maturation antigen (BCMA) CART trials report the number of patients not receiving CART after being enrolled by performing meta-analysis of the mITT and intention-to-treat (iTT) overall response rate (ORR). METHODS PubMed/MEDLINE, EMBASE and Cochrane databases were searched. All prospective clinical trials of CD19 and BCMA-targeting CART enrolling two or greater patients from 1st January 2013 to 1st November 2020 were included. RESULTS A total of 28 BCMA CART and 74 CD19 CART trials were identified. These included 10 BCMA CART (35.7%) and 52 (70.2%) CD19 CART trials reporting total number of patients enrolled and number of patients treated with CART. For this cohort of trials, the mITT ORR for BCMA CART was 78.0% (95% confidence interval (CI) = 67.0-89.0%), and the iTT ORR was 70.0% (95% CI = 59.0-80.0%). For CD19 leukaemia CART, the mITT ORR was 87.2% (95% CI = 83.1-91.2), and the iTT ORR was 74.9 (95% CI = 64.8-85.0). For CD19 lymphoma CART, the mITT ORR was 70.7% (95% CI = 63.9-77.5), and the iTT ORR was 58.7% (95% CI = 49.7-67.7). CONCLUSION Across BCMA and CD19 CART trials, there is a difference of up to 8-12% in the ORR between modified and iTT analyses and a paucity of information regarding reasons why patients did not receive the intended study treatment.
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Affiliation(s)
| | - Tahani Atieh
- Division of Hematological Malignancies and Cellular Therapeutics, University of Kansas, United States
| | - Nausheen Ahmed
- Division of Hematological Malignancies and Cellular Therapeutics, University of Kansas, United States
| | - Douglas Sborov
- Division of Hematology and Hematological Malignancies, University of Utah, United States
| | - Brian McClune
- Division of Hematology and Hematological Malignancies, University of Utah, United States
| | - Al-Ola Abdallah
- Division of Hematological Malignancies and Cellular Therapeutics, University of Kansas, United States
| | - Aaron M Goodman
- Division of Blood and Marrow Transplantation, University of California San Diego, United States
| | - Muhammad Aziz
- Department of Gastroenterology, University of Toledo, United States
| | - Isabel Allen
- Division of Epidemiology and Biostatistics, University of California San Francisco, United States
| | - Vinay Prasad
- Divisions of Hematology & Medical Oncology, University of California San Francisco, United States
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Banerjee R, Prasad V. Characteristics of Registered Studies of Chimeric Antigen Receptor Therapies: A Systematic Review. JAMA Netw Open 2021; 4:e2115668. [PMID: 34236412 PMCID: PMC8267610 DOI: 10.1001/jamanetworkopen.2021.15668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
IMPORTANCE Hundreds of chimeric antigen receptor (CAR) therapies are under investigation for hematologic malignant cancers and solid malignant tumors. As the field of modern CAR therapy enters its second decade, clinical trials that demonstrate the efficacy of CAR therapies using randomized clinical trials (RCTs) and/or investigate methods to optimize patient outcomes with commercially available CAR therapies are increasingly important. OBJECTIVE To analyze the landscape of registered CAR-related trials with dual focuses on trial methods and intent. EVIDENCE REVIEW This systematic review identified 1304 ongoing or upcoming CAR-related trials registered at ClinicalTrials.gov as of December 22, 2020, and excluded 513 trials that did not pertain to cell-based therapy. Both CAR-related and trial-related variables, including target antigens and countries of origin, were recorded. Trials were categorized as non-RCTs that compared CAR with non-CAR therapies or RCTs in which every arm received CAR therapy. Trial intent was separately categorized as demonstrating the efficacy of a CAR therapy, optimizing patient outcomes with established CAR therapies using adjunctive non-CAR modalities, or miscellaneous. FINDINGS Of 778 relevant trials, 587 (75%) involved blood cancers, whereas 182 (23%) involved solid tumor cancers; the remaining 9 (1%) involved nonmalignant diseases. A total of 433 trials (56%) were from China and 288 from the US (37%). Ten RCTs (1%) compared CAR therapies with non-CAR therapies, including phase 3 RCTs for 4 of 5 CAR therapies (80%) that are currently commercially available. Twenty-eight studies (4%) sought to optimize outcomes with established CAR therapies using non-CAR drugs or radiotherapy, whereas 3 studies (0.4%) sought to optimize supportive care during CAR therapy. CONCLUSIONS AND RELEVANCE This systematic review found that randomized and optimization-focused trials are comparatively rare within the landscape of ongoing and upcoming CAR-related trials. As the field of modern CAR therapy enters its second decade, additional studies of these characteristics are necessary to strengthen the evidence base for CAR therapy and improve patient outcomes.
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Affiliation(s)
- Rahul Banerjee
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco
| | - Vinay Prasad
- Department of Epidemiology and Biostatistics, San Francisco General Hospital, San Francisco, California
- Department of Hematology Oncology, University of California, San Francisco
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Yuan Y, Fu Q, Zhang Y, Xu D, Wu Y, Qiu Q, Zhou W. CAR-based cell therapy: evaluation with bibliometrics and patent analysis. Hum Vaccin Immunother 2021; 17:4374-4382. [PMID: 34184975 DOI: 10.1080/21645515.2021.1947100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Chimeric antigen receptors-based cell therapies have shown impressive preclinical and clinical success and revolutionized biomedicine. However, the link between science and invention, the impact of international cooperation, and the influence and prestige of CARs research have not been explored. This study analyzed the landscape of peer-reviewed articles and patents related to CARs. A total of 5,681 publications were analyzed using bibliometrics and machine learning-based text mining to assess publication metrics, subject areas, and research hotspots. 5,010 Inpadoc families were also analyzed for patent filing trends, priority countries, and applicant and inventor rankings. The results show that CARs research has the following distinctive features: high research prestige among research community; strong global geographical bias in both academic output and patenting patterns; strong links between science and invention, but significant differences among countries; and an inverse relationship between country size and international collaboration rates.
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Affiliation(s)
- Yajun Yuan
- Zhejiang Academy of Science and Technology Information, Hangzhou, China
| | - Qihan Fu
- School of Medicine, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Yaqun Zhang
- Library of Zhejiang University, Hangzhou, China
| | - Danhai Xu
- Zhejiang Academy of Science and Technology Information, Hangzhou, China
| | - Yeqing Wu
- Zhejiang Academy of Science and Technology Information, Hangzhou, China
| | - Qiufei Qiu
- Zhejiang Academy of Science and Technology Information, Hangzhou, China
| | - Wuyuan Zhou
- Zhejiang Academy of Science and Technology Information, Hangzhou, China
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