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Endowing universal CAR T-cell with immune-evasive properties using TALEN-gene editing. Nat Commun 2022; 13:3453. [PMID: 35773273 PMCID: PMC9247096 DOI: 10.1038/s41467-022-30896-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/24/2022] [Indexed: 12/29/2022] Open
Abstract
Universal CAR T-cell therapies are poised to revolutionize cancer treatment and to improve patient outcomes. However, realizing these advantages in an allogeneic setting requires universal CAR T-cells that can kill target tumor cells, avoid depletion by the host immune system, and proliferate without attacking host tissues. Here, we describe the development of a novel immune-evasive universal CAR T-cells scaffold using precise TALEN-mediated gene editing and DNA matrices vectorized by recombinant adeno-associated virus 6. We simultaneously disrupt and repurpose the endogenous TRAC and B2M loci to generate TCRαβ- and HLA-ABC-deficient T-cells expressing the CAR construct and the NK-inhibitor named HLA-E. This highly efficient gene editing process enables the engineered T-cells to evade NK cell and alloresponsive T-cell attacks and extend their persistence and antitumor activity in the presence of cytotoxic levels of NK cell in vivo and in vitro, respectively. This scaffold could enable the broad use of universal CAR T-cells in allogeneic settings and holds great promise for clinical applications.
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Kath J, Du W, Pruene A, Braun T, Thommandru B, Turk R, Sturgeon ML, Kurgan GL, Amini L, Stein M, Zittel T, Martini S, Ostendorf L, Wilhelm A, Akyüz L, Rehm A, Höpken UE, Pruß A, Künkele A, Jacobi AM, Volk HD, Schmueck-Henneresse M, Stripecke R, Reinke P, Wagner DL. Pharmacological interventions enhance virus-free generation of TRAC-replaced CAR T cells. Mol Ther Methods Clin Dev 2022; 25:311-330. [PMID: 35573047 PMCID: PMC9062427 DOI: 10.1016/j.omtm.2022.03.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/29/2022] [Indexed: 12/30/2022]
Abstract
Chimeric antigen receptor (CAR) redirected T cells are potent therapeutic options against hematological malignancies. The current dominant manufacturing approach for CAR T cells depends on retroviral transduction. With the advent of gene editing, insertion of a CD19-CAR into the T cell receptor (TCR) alpha constant (TRAC) locus using adeno-associated viruses for gene transfer was demonstrated, and these CD19-CAR T cells showed improved functionality over their retrovirally transduced counterparts. However, clinical-grade production of viruses is complex and associated with extensive costs. Here, we optimized a virus-free genome-editing method for efficient CAR insertion into the TRAC locus of primary human T cells via nuclease-assisted homology-directed repair (HDR) using CRISPR-Cas and double-stranded template DNA (dsDNA). We evaluated DNA-sensor inhibition and HDR enhancement as two pharmacological interventions to improve cell viability and relative CAR knockin rates, respectively. While the toxicity of transfected dsDNA was not fully prevented, the combination of both interventions significantly increased CAR knockin rates and CAR T cell yield. Resulting TRAC-replaced CD19-CAR T cells showed antigen-specific cytotoxicity and cytokine production in vitro and slowed leukemia progression in a xenograft mouse model. Amplicon sequencing did not reveal significant indel formation at potential off-target sites with or without exposure to DNA-repair-modulating small molecules. With TRAC-integrated CAR+ T cell frequencies exceeding 50%, this study opens new perspectives to exploit pharmacological interventions to improve non-viral gene editing in T cells.
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Affiliation(s)
- Jonas Kath
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Weijie Du
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Alina Pruene
- Regenerative Immune Therapies Applied, Clinics of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Region, Germany
| | - Tobias Braun
- Regenerative Immune Therapies Applied, Clinics of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Region, Germany
| | | | - Rolf Turk
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | | | - Gavin L. Kurgan
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | - Leila Amini
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Maik Stein
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Tatiana Zittel
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Stefania Martini
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Lennard Ostendorf
- Department of Nephrology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
- Deutsches Rheuma-Forschungszentrum (DRFZ), A Leibniz Institute, Berlin, Germany
| | | | | | - Armin Rehm
- Department of Translational Tumorimmunology, Max-Delbrück-Center for Molecular Medicine (MDC), 13125 Berlin, Germany
| | - Uta E. Höpken
- Department of Microenvironmental Regulation in Autoimmunity and Cancer, Max-Delbrück-Center for Molecular Medicine (MDC), 13125 Berlin, Germany
| | - Axel Pruß
- Institute of Transfusion Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Annette Künkele
- Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
- Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- German Cancer Consortium (DKTK), 10117 Berlin, Germany
| | | | - Hans-Dieter Volk
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
- Institute of Medical Immunology, Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Michael Schmueck-Henneresse
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Renata Stripecke
- Regenerative Immune Therapies Applied, Clinics of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Region, Germany
- Clinic I for Internal Medicine, Cancer Center Cologne Essen, University Hospital Cologne, Cologne, Germany
| | - Petra Reinke
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Dimitrios L. Wagner
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
- Institute of Transfusion Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
- Institute of Medical Immunology, Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
- Corresponding author Dimitrios Laurin Wagner, MD, PhD, Berlin Center for Advanced Therapies (BeCAT) BIH Center for Regenerative Therapies (BCRT) Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany.
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53
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Yu J, Li T, Han H, Zeng F, Wu Z, Zhang J, Chen Y, Sheng B, Deng S, Zhu P. Establishment of a 10-gene prognostic model for gastric cancer based on the tumor immune microenvironment. Anal Biochem 2022; 654:114794. [DOI: 10.1016/j.ab.2022.114794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/06/2022] [Accepted: 06/14/2022] [Indexed: 11/01/2022]
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CRISPR/Cas9 application in cancer therapy: a pioneering genome editing tool. Cell Mol Biol Lett 2022; 27:35. [PMID: 35508982 PMCID: PMC9066929 DOI: 10.1186/s11658-022-00336-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/13/2022] [Indexed: 12/20/2022] Open
Abstract
The progress of genetic engineering in the 1970s brought about a paradigm shift in genome editing technology. The clustered regularly interspaced short palindromic repeats/CRISPR associated protein 9 (CRISPR/Cas9) system is a flexible means to target and modify particular DNA sequences in the genome. Several applications of CRISPR/Cas9 are presently being studied in cancer biology and oncology to provide vigorous site-specific gene editing to enhance its biological and clinical uses. CRISPR's flexibility and ease of use have enabled the prompt achievement of almost any preferred alteration with greater efficiency and lower cost than preceding modalities. Also, CRISPR/Cas9 technology has recently been applied to improve the safety and efficacy of chimeric antigen receptor (CAR)-T cell therapies and defeat tumor cell resistance to conventional treatments such as chemotherapy and radiotherapy. The current review summarizes the application of CRISPR/Cas9 in cancer therapy. We also discuss the present obstacles and contemplate future possibilities in this context.
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55
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Vasic D, Lee JB, Leung Y, Khatri I, Na Y, Abate-Daga D, Zhang L. Allogeneic double-negative CAR-T cells inhibit tumor growth without off-tumor toxicities. Sci Immunol 2022; 7:eabl3642. [PMID: 35452255 DOI: 10.1126/sciimmunol.abl3642] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The development of autologous chimeric antigen receptor T (CAR-T) cell therapies has revolutionized cancer treatment. Nevertheless, the delivery of CAR-T cell therapy faces challenges, including high costs, lengthy production times, and manufacturing failures. To overcome this, attempts have been made to develop allogeneic CAR-T cells using donor-derived conventional CD4+ or CD8+ T cells (Tconvs), but severe graft-versus-host disease (GvHD) and host immune rejection have made this challenging. CD3+CD4-CD8- double-negative T cells (DNTs) are a rare subset of mature T cells shown to fulfill the requirements of an off-the-shelf cellular therapy, including scalability, cryopreservability, donor-independent anticancer function, resistance to rejection, and no observed off-tumor toxicity including GvHD. To overcome the challenges faced with CAR-Tconvs, we evaluated the feasibility, safety, and efficacy of using healthy donor-derived allogeneic DNTs as a CAR-T cell therapy platform. We successfully transduced DNTs with a second-generation anti-CD19-CAR (CAR19) without hampering their endogenous characteristics or off-the-shelf properties. CAR19-DNTs induced antigen-specific cytotoxicity against B cell acute lymphoblastic leukemia (B-ALL). In addition, CAR19-DNTs showed effective infiltration and tumor control against lung cancer genetically modified to express CD19 in xenograft models. CAR19-DNT efficacy was comparable with that of CAR19-Tconvs. However, unlike CAR19-Tconvs, CAR19-DNTs did not cause alloreactivity or xenogeneic GvHD-related mortality in xenograft models. These studies demonstrate the potential of using allogeneic DNTs as a platform for CAR technology to provide a safe, effective, and patient-accessible CAR-T cell treatment option.
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Affiliation(s)
- Daniel Vasic
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Jong Bok Lee
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Yuki Leung
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Ismat Khatri
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Yoosu Na
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Daniel Abate-Daga
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Li Zhang
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
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56
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Tang TCY, Xu N, Nordon R, Haber M, Micklethwaite K, Dolnikov A. Donor T cells for CAR T cell therapy. Biomark Res 2022; 10:14. [PMID: 35365224 PMCID: PMC8973942 DOI: 10.1186/s40364-022-00359-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/26/2022] [Indexed: 01/01/2023] Open
Abstract
Adoptive cell therapy using patient-derived chimeric receptor antigen (CAR) T cells redirected against tumor cells has shown remarkable success in treating hematologic cancers. However, wider accessibility of cellular therapies for all patients is needed. Manufacture of patient-derived CAR T cells is limited by prolonged lymphopenia in heavily pre-treated patients and risk of contamination with tumor cells when isolating T cells from patient blood rich in malignant blasts. Donor T cells provide a good source of immune cells for adoptive immunotherapy and can be used to generate universal off-the-shelf CAR T cells that are readily available for administration into patients as required. Genome editing tools such as TALENs and CRISPR-Cas9 and non-gene editing methods such as short hairpin RNA and blockade of protein expression are currently used to enhance CAR T cell safety and efficacy by abrogating non-specific toxicity in the form of graft versus host disease (GVHD) and preventing CAR T cell rejection by the host.
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Affiliation(s)
- Tiffany C Y Tang
- Graduate School of Biomedical Engineering, Faculty of Engineering, UNSW Sydney, Sydney, NSW, Australia. .,Children's Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Sydney, NSW, Australia.
| | - Ning Xu
- Children's Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Sydney, NSW, Australia.,School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, Sydney, NSW, Australia
| | - Robert Nordon
- Graduate School of Biomedical Engineering, Faculty of Engineering, UNSW Sydney, Sydney, NSW, Australia
| | - Michelle Haber
- Children's Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Sydney, NSW, Australia.,School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, Sydney, NSW, Australia.,Kids Cancer Center, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Kenneth Micklethwaite
- Blood Transplant and Cell Therapies Program, Department of Hematology, Westmead Hospital, Sydney, NSW, Australia.,Blood Transplant and Cell Therapies Laboratory, NSW Health Pathology, ICPMR Westmead, Sydney, NSW, Australia.,Westmead Institute for Medical Research, Sydney, NSW, Australia.,Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Alla Dolnikov
- Children's Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Sydney, NSW, Australia.,School of Women's and Children's Health, Faculty of Medicine, UNSW Sydney, Sydney, NSW, Australia.,Kids Cancer Center, Sydney Children's Hospital, Sydney, NSW, Australia
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57
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He X, Zeng XX. Immunotherapy and CRISPR Cas Systems: Potential Cure of COVID-19? Drug Des Devel Ther 2022; 16:951-972. [PMID: 35386853 PMCID: PMC8979261 DOI: 10.2147/dddt.s347297] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/16/2022] [Indexed: 12/15/2022] Open
Abstract
The COVID-19 has plunged the world into a pandemic that affected millions. The continually emerging new variants of concern raise the question as to whether the existing vaccines will continue to provide sufficient protection for individuals from SARS-CoV-2 during natural infection. This narrative review aims to briefly outline various immunotherapeutic options and discuss the potential of clustered regularly interspaced short palindromic repeat (CRISPR Cas system technology against COVID-19 treatment as specific cure. As the development of vaccine, convalescent plasma, neutralizing antibodies are based on the understanding of human immune responses against SARS-CoV-2, boosting human body immune responses in case of SARS-CoV-2 infection, immunotherapeutics seem feasible as specific cure against COVID-19 if the present challenges are overcome. In cell based therapeutics, apart from the high costs, risks and side effects, there are technical problems such as the production of sufficient potent immune cells and antibodies under limited time to treat the COVID-19 patients in mild conditions prior to progression into a more severe case. The CRISPR Cas technology could be utilized to refine the specificity and safety of CAR-T cells, CAR-NK cells and neutralizing antibodies against SARS-CoV-2 during various stages of the COVID-19 disease progression in infected individuals. Moreover, CRISPR Cas technology are proposed in hypotheses to degrade the viral RNA in order to terminate the infection caused by SARS-CoV-2. Thus personalized cocktails of immunotherapeutics and CRISPR Cas systems against COVID-19 as a strategy might prevent further disease progression and circumvent immunity escape.
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Affiliation(s)
- Xuesong He
- Department of Cardiology, Changzhou Jintan First People’s Hospital, Changzhou City, Jiangsu Province, 213200, People’s Republic of China
| | - Xiao Xue Zeng
- Department of Health Management, Centre of General Practice, The Seventh Affiliated Hospital, Southern Medical University, Foshan City, Guangdong Province, 528000, People’s Republic of China
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Abstract
The therapeutic armamentarium has significantly expanded since the approval of various CD19-targeting chimeric antigen receptor T cell (CAR-T) therapies in non-Hodgkin lymphoma (NHL). These CAR-Ts are patient-specific and require a complex, resource, and time-consuming process. While this appears promising, autologous CAR-Ts are limited due to the lack of accessibility, manufacturing delays, and variable product quality. To overcome these, allogeneic (allo) CARs from healthy donors appear appealing. These can be immediately available as “off the shelf” ready-to-use products of standardized and superior quality exempt from the effects of an immunosuppressive tumor microenvironment and prior treatments, and potentially with lower healthcare utilization using industrialized scale production. Allogeneic CARs, however, are not devoid of complications and require genomic editing, especially with αβ T cells to avoid graft versus host disease (GvHD) and allo-rejection by the recipient’s immune system. Tools for genomic editing such as TALEN and CRISPR provide promise to develop truly “off the shelf” universal CARs and further advance the field of cellular immunotherapy. Several allogeneic CARs are currently in early phase clinical trials, and preliminary data is encouraging. Longer follow-up is required to truly assess the feasibility and safety of these techniques in the patients. This review focuses on the strategies for developing allogeneic CARs along with cell sources and clinical experience thus far in lymphoma.
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59
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Smirnov S, Petukhov A, Levchuk K, Kulemzin S, Staliarova A, Lepik K, Shuvalov O, Zaritskey A, Daks A, Fedorova O. Strategies to Circumvent the Side-Effects of Immunotherapy Using Allogeneic CAR-T Cells and Boost Its Efficacy: Results of Recent Clinical Trials. Front Immunol 2022; 12:780145. [PMID: 34975869 PMCID: PMC8714645 DOI: 10.3389/fimmu.2021.780145] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 11/22/2021] [Indexed: 12/27/2022] Open
Abstract
Despite the outstanding results of treatment using autologous chimeric antigen receptor T cells (CAR-T cells) in hematological malignancies, this approach is endowed with several constraints. In particular, profound lymphopenia in some patients and the inability to manufacture products with predefined properties or set of cryopreserved batches of cells directed to different antigens in advance. Allogeneic CAR-T cells have the potential to address these issues but they can cause life-threatening graft-versus-host disease or have shorter persistence due to elimination by the host immune system. Novel strategies to create an “off the shelf” allogeneic product that would circumvent these limitations are an extensive area of research. Here we review CAR-T cell products pioneering an allogeneic approach in clinical trials.
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Affiliation(s)
- Sergei Smirnov
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia
| | - Alexey Petukhov
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia.,Institute of Cytology, Laboratory of Gene Expression Regulation, Russian Academy of Sciences, Saint Petersburg, Russia
| | - Ksenia Levchuk
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia
| | - Sergey Kulemzin
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia.,Institute of Molecular and Cellular Biology SB Russian Academy of Science (RAS), Department of Molecular Immunology, Laboratory of Immunogenetics, Novosibirsk, Russia
| | - Alena Staliarova
- Belarusian Research Center for Pediatric Oncology, Hematology and Immunology, Oncological Department 3, Borovliani, Minsk Region, Belarus
| | - Kirill Lepik
- RM Gorbacheva Research Institute of Pediatric Oncology, Hematology and Transplantation, Chemotherapy and Bone Marrow Transplantation Department, Saint Petersburg, Russia.,Pavlov University, Department of Hematology, Transfusiology and Transplantology, Saint Petersburg, Russia
| | - Oleg Shuvalov
- Institute of Cytology, Laboratory of Gene Expression Regulation, Russian Academy of Sciences, Saint Petersburg, Russia
| | - Andrey Zaritskey
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia
| | - Alexandra Daks
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia.,Institute of Cytology, Laboratory of Gene Expression Regulation, Russian Academy of Sciences, Saint Petersburg, Russia
| | - Olga Fedorova
- Almazov National Medical Research Centre, Personalized Medicine Centre, Saint Petersburg, Russia.,Institute of Cytology, Laboratory of Gene Expression Regulation, Russian Academy of Sciences, Saint Petersburg, Russia
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Yang J, Li Y, Ye J, Wang J, Lu H, Yao X. Characterization of the TCR β Chain Repertoire in Peripheral Blood from Hepatitis B Vaccine Responders and Non-Responders. J Inflamm Res 2022; 15:939-951. [PMID: 35210805 PMCID: PMC8856041 DOI: 10.2147/jir.s347702] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/26/2022] [Indexed: 02/05/2023] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Jiezuan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Infectious Diseases, Hangzhou, People’s Republic of China
- Correspondence: Jiezuan Yang, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Infectious Diseases, 79 Qingchun Road, Hangzhou, 310003, People’s Republic of China, Tel +86 571 87236756, Email
| | - Yongtao Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Infectious Diseases, Hangzhou, People’s Republic of China
| | - Jing Ye
- Department of Surgical ICU, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People’s Republic of China
| | - Ju Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Infectious Diseases, Hangzhou, People’s Republic of China
| | - Haifeng Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Infectious Diseases, Hangzhou, People’s Republic of China
| | - Xinsheng Yao
- Department of Immunology, Research Center for Medicine & Biology, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, People’s Republic of China
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61
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CRISPR/Cas9 genome-edited universal CAR T cells in patients with relapsed and refractory lymphoma. Blood Adv 2022; 6:2695-2699. [PMID: 35008103 PMCID: PMC9043938 DOI: 10.1182/bloodadvances.2021006232] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/27/2021] [Indexed: 11/20/2022] Open
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62
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Murty T, Mackall CL. Gene editing to enhance the efficacy of cancer cell therapies. Mol Ther 2021; 29:3153-3162. [PMID: 34673274 PMCID: PMC8571170 DOI: 10.1016/j.ymthe.2021.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 12/18/2022] Open
Abstract
Adoptive T cell therapies have shown impressive signals of activity, but their clinical impact could be enhanced by technologies to increase T cell potency and diminish the cost and labor involved in manufacturing these products. Gene editing platforms are under study in this arena to (1) enhance immune cell potency by knocking out molecules that inhibit immune responses; (2) deliver genetic payloads into precise genomic locations and thereby enhance safety and/or improve the gene expression profile by leveraging physiologic promoters, enhancers, and repressors; and (3) enable off-the-shelf therapies by preventing alloreactivity and immune rejection. This review discusses gene editing approaches that have been the best studied in the context of human T cells and adoptive T cell therapies, summarizing their current status and near-term potential for translation.
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Affiliation(s)
- Tara Murty
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA; Program in Biophysics, Stanford University, Stanford, CA, USA; Medical Scientist Training Program, Stanford University, Stanford, CA, USA
| | - Crystal L Mackall
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA; Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA; Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
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63
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Lin H, Cheng J, Mu W, Zhou J, Zhu L. Advances in Universal CAR-T Cell Therapy. Front Immunol 2021; 12:744823. [PMID: 34691052 PMCID: PMC8526896 DOI: 10.3389/fimmu.2021.744823] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/13/2021] [Indexed: 12/27/2022] Open
Abstract
Chimeric antigen receptor T (CAR-T) cell therapy achieved extraordinary achievements results in antitumor treatments, especially against hematological malignancies, where it leads to remarkable, long-term antineoplastic effects with higher target specificity. Nevertheless, some limitations persist in autologous CAR-T cell therapy, such as high costs, long manufacturing periods, and restricted cell sources. The development of a universal CAR-T (UCAR-T) cell therapy is an attractive breakthrough point that may overcome most of these drawbacks. Here, we review the progress and challenges in CAR-T cell therapy, especially focusing on comprehensive comparison in UCAR-T cell therapy to original CAR-T cell therapy. Furthermore, we summarize the developments and concerns about the safety and efficiency of UCAR-T cell therapy. Finally, we address other immune cells, which might be promising candidates as a complement for UCAR-T cells. Through a detailed overview, we describe the current landscape and explore the prospect of UCAR-T cell therapy.
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Affiliation(s)
- Haolong Lin
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiali Cheng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Mu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianfeng Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Zhu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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64
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Current Perspectives on the Use of off the Shelf CAR-T/NK Cells for the Treatment of Cancer. Cancers (Basel) 2021; 13:cancers13081926. [PMID: 33923528 PMCID: PMC8074108 DOI: 10.3390/cancers13081926] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/01/2021] [Accepted: 04/13/2021] [Indexed: 12/27/2022] Open
Abstract
Simple Summary CAR T cells are a type of immunotherapy whereby a patient’s own cells are genetically modified to recognise and kill the patient’s own cancer cells. Currently, each patient has CAR T cells made from their own blood cells. This type of therapy has had a big impact on the treatment of blood cancers, however making an individual treatment from each patient is expensive and labour intensive. This review discusses the potential of making CAR T cells more widely available by producing them in large numbers from healthy donors. Abstract CAR T cells have revolutionised the treatment of haematological malignancies. Despite this, several obstacles still prohibit their widespread use and efficacy. One of these barriers is the use of autologous T cells as the carrier of the CAR. The individual production of CAR T cells results in large variation in the product, greater wait times for treatment and higher costs. To overcome this several novel approaches have emerged that utilise allogeneic cells, so called “off the shelf” CAR T cells. In this Review, we describe the different approaches that have been used to produce allogeneic CAR T to date, as well as their current pre-clinical and clinical progress.
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65
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Martínez Bedoya D, Dutoit V, Migliorini D. Allogeneic CAR T Cells: An Alternative to Overcome Challenges of CAR T Cell Therapy in Glioblastoma. Front Immunol 2021; 12:640082. [PMID: 33746981 PMCID: PMC7966522 DOI: 10.3389/fimmu.2021.640082] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/08/2021] [Indexed: 12/18/2022] Open
Abstract
Chimeric antigen receptor (CAR) T cell therapy has emerged as one of the major breakthroughs in cancer immunotherapy in the last decade. Outstanding results in hematological malignancies and encouraging pre-clinical anti-tumor activity against a wide range of solid tumors have made CAR T cells one of the most promising fields for cancer therapies. CAR T cell therapy is currently being investigated in solid tumors including glioblastoma (GBM), a tumor for which survival has only modestly improved over the past decades. CAR T cells targeting EGFRvIII, Her2, or IL-13Rα2 have been tested in GBM, but the first clinical trials have shown modest results, potentially due to GBM heterogeneity and to the presence of an immunosuppressive microenvironment. Until now, the use of autologous T cells to manufacture CAR products has been the norm, but this approach has several disadvantages regarding production time, cost, manufacturing delay and dependence on functional fitness of patient T cells, often reduced by the disease or previous therapies. Universal “off-the-shelf,” or allogeneic, CAR T cells is an alternative that can potentially overcome these issues, and allow for multiple modifications and CAR combinations to target multiple tumor antigens and avoid tumor escape. Advances in genome editing tools, especially via CRISPR/Cas9, might allow overcoming the two main limitations of allogeneic CAR T cells product, i.e., graft-vs.-host disease and host allorejection. Here, we will discuss how allogeneic CAR T cells could allow for multivalent approaches and alteration of the tumor microenvironment, potentially allowing the development of next generation therapies for the treatment of patients with GBM.
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Affiliation(s)
- Darel Martínez Bedoya
- Center for Translational Research in Onco-Hematology, University of Geneva, Geneva, Switzerland.,Swiss Cancer Center Léman, Lausanne, Switzerland.,Brain Tumor and Immune Cell Engineering Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Valérie Dutoit
- Center for Translational Research in Onco-Hematology, University of Geneva, Geneva, Switzerland.,Swiss Cancer Center Léman, Lausanne, Switzerland.,Brain Tumor and Immune Cell Engineering Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Denis Migliorini
- Center for Translational Research in Onco-Hematology, University of Geneva, Geneva, Switzerland.,Swiss Cancer Center Léman, Lausanne, Switzerland.,Brain Tumor and Immune Cell Engineering Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Department of Oncology, Geneva University Hospitals (HUG), Geneva, Switzerland
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66
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Mo F, Mamonkin M, Brenner MK, Heslop HE. Taking T-Cell Oncotherapy Off-the-Shelf. Trends Immunol 2021; 42:261-272. [PMID: 33536140 PMCID: PMC7914205 DOI: 10.1016/j.it.2021.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 12/27/2022]
Abstract
Banked allogeneic or 'off-the-shelf' (OTS) T cells from healthy human donors are being developed to address the limitations of autologous cell therapies. Potential challenges of OTS T cell therapies are associated with their allogeneic origin and the possibility of graft-versus-host disease (GvHD) and host-versus-graft immune reactions. While the risk of GvHD from OTS T cells has been proved to be manageable in clinical studies, approaches to prevent immune rejection of OTS cells are at an earlier stage of development. We provide an overview of strategies to generate OTS cell therapies and mitigate alloreactivity-associated adverse events, with a focus on recent advances for preventing immune rejection.
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Affiliation(s)
- Feiyan Mo
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA; Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Maksim Mamonkin
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA; Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX, USA; Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Malcolm K Brenner
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA; Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Helen E Heslop
- Center for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital and Houston Methodist Hospital, Houston, TX, USA; Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA.
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67
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Abstract
ABSTRACT Banked chimeric antigen receptor (CAR) T cells immediately available for off-the-shelf (OTS) application can solve key limitations of patient-specific CAR T-cell products while retaining their potency. The allogeneic nature of OTS cell therapies requires additional measures to minimize graft-versus-host disease and host-versus-graft immune rejection in immunocompetent recipients. In this review, we discuss engineering and manufacturing strategies aimed at minimizing unwanted interactions between allogeneic CAR T cells and the host. Overcoming these limitations will improve safety and antitumor potency of OTS CAR T cells and facilitate their wider use in cancer therapy.
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Affiliation(s)
- Norihiro Watanabe
- From the Center for Cell and Gene Therapy, Baylor College of Medicine; Houston Methodist Hospital; and Texas Children's Hospital, Houston, TX
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68
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Wagner DL, Fritsche E, Pulsipher MA, Ahmed N, Hamieh M, Hegde M, Ruella M, Savoldo B, Shah NN, Turtle CJ, Wayne AS, Abou-El-Enein M. Immunogenicity of CAR T cells in cancer therapy. Nat Rev Clin Oncol 2021; 18:379-393. [PMID: 33633361 PMCID: PMC8923136 DOI: 10.1038/s41571-021-00476-2] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2021] [Indexed: 12/14/2022]
Abstract
Patient-derived T cells genetically reprogrammed to express CD19-specific chimeric antigen receptors (CARs) have shown remarkable clinical responses and are commercially available for the treatment of patients with certain advanced-stage B cell malignancies. Nonetheless, several trials have revealed pre-existing and/or treatment-induced immune responses to the mouse-derived single-chain variable fragments included in these constructs. These responses might have contributed to both treatment failure and the limited success of redosing strategies observed in some patients. Data from early phase clinical trials suggest that CAR T cells are also associated with immunogenicity-related events in patients with solid tumours. Generally, the clinical implications of anti-CAR immune responses are poorly understood and highly variable between different CAR constructs and malignancies. These observations highlight an urgent need to uncover the mechanisms of immunogenicity in patients receiving CAR T cells and develop validated assays to enable clinical detection. In this Review, we describe the current clinical evidence of anti-CAR immune responses and discuss how new CAR T cell technologies might impact the risk of immunogenicity. We then suggest ways to reduce the risks of anti-CAR immune responses to CAR T cell products that are advancing towards the clinic. Finally, we summarize measures that investigators could consider in order to systematically monitor and better comprehend the possible effects of immunogenicity during trials involving CAR T cells as well as in routine clinical practice.
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Affiliation(s)
- Dimitrios L Wagner
- Berlin Center for Advanced Therapies (BeCAT) and Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin, Germany.,Institute of Transfusion Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Enrico Fritsche
- Berlin Center for Advanced Therapies (BeCAT) and Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Michael A Pulsipher
- Section of Transplantation and Cellular Therapy, Children's Hospital Los Angeles Cancer and Blood Disease Institute, USC Keck School of Medicine, Los Angeles, CA, USA
| | - Nabil Ahmed
- Texas Children's Cancer and Hematology Centers, Texas Children's Hospital, Houston, TX, USA.,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
| | - Mohamad Hamieh
- Center for Cell Engineering and Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Meenakshi Hegde
- Texas Children's Cancer and Hematology Centers, Texas Children's Hospital, Houston, TX, USA.,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
| | - Marco Ruella
- Center for Cellular Immunotherapies, University of Pennsylvania Philadelphia, Philadelphia, PA, USA.,Division of Hematology and Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Barbara Savoldo
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Nirali N Shah
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Cameron J Turtle
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA, USA.,Department of Medicine, University of Washington, Seattle, WA, USA
| | - Alan S Wayne
- Cancer and Blood Disease Institute, Division of Hematology-Oncology, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mohamed Abou-El-Enein
- Berlin Center for Advanced Therapies (BeCAT) and Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin, Germany. .,Division of Medical Oncology, Department of Medicine, and Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. .,Joint USC/CHLA Cell Therapy Program, University of Southern California, and Children's Hospital Los Angeles, Los Angeles, CA, USA.
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69
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Abstract
Genetically engineered T cell immunotherapies have provided remarkable clinical success to treat B cell acute lymphoblastic leukaemia by harnessing a patient's own T cells to kill cancer, and these approaches have the potential to provide therapeutic benefit for numerous other cancers, infectious diseases and autoimmunity. By introduction of either a transgenic T cell receptor or a chimeric antigen receptor, T cells can be programmed to target cancer cells. However, initial studies have made it clear that the field will need to implement more complex levels of genetic regulation of engineered T cells to ensure both safety and efficacy. Here, we review the principles by which our knowledge of genetics and genome engineering will drive the next generation of adoptive T cell therapies.
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70
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Caldwell KJ, Gottschalk S, Talleur AC. Allogeneic CAR Cell Therapy-More Than a Pipe Dream. Front Immunol 2021; 11:618427. [PMID: 33488631 PMCID: PMC7821739 DOI: 10.3389/fimmu.2020.618427] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 11/30/2020] [Indexed: 12/27/2022] Open
Abstract
Adoptive cellular immunotherapy using immune cells expressing chimeric antigen receptors (CARs) has shown promise, particularly for the treatment of hematological malignancies. To date, the majority of clinically evaluated CAR cell products have been derived from autologous immune cells. While this strategy can be effective it also imposes several constraints regarding logistics. This includes i) availability of center to perform leukapheresis, ii) necessity for shipment to and from processing centers, and iii) time requirements for product manufacture and clinical release testing. In addition, previous cytotoxic therapies can negatively impact the effector function of autologous immune cells, which may then affect efficacy and/or durability of resultant CAR products. The use of allogeneic CAR cell products generated using cells from healthy donors has the potential to overcome many of these limitations, including through generation of “off the shelf” products. However, allogeneic CAR cell products come with their own challenges, including potential to induce graft-versus-host-disease, as well as risk of immune-mediated rejection by the host. Here we will review promises and challenges of allogeneic CAR immunotherapies, including those being investigated in preclinical models and/or early phase clinical studies.
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Affiliation(s)
- Kenneth J Caldwell
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Stephen Gottschalk
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Aimee C Talleur
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
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71
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Zhang S, Shen J, Li D, Cheng Y. Strategies in the delivery of Cas9 ribonucleoprotein for CRISPR/Cas9 genome editing. Theranostics 2021; 11:614-648. [PMID: 33391496 PMCID: PMC7738854 DOI: 10.7150/thno.47007] [Citation(s) in RCA: 168] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/31/2020] [Indexed: 12/26/2022] Open
Abstract
CRISPR/Cas9 genome editing has gained rapidly increasing attentions in recent years, however, the translation of this biotechnology into therapy has been hindered by efficient delivery of CRISPR/Cas9 materials into target cells. Direct delivery of CRISPR/Cas9 system as a ribonucleoprotein (RNP) complex consisting of Cas9 protein and single guide RNA (sgRNA) has emerged as a powerful and widespread method for genome editing due to its advantages of transient genome editing and reduced off-target effects. In this review, we summarized the current Cas9 RNP delivery systems including physical approaches and synthetic carriers. The mechanisms and beneficial roles of these strategies in intracellular Cas9 RNP delivery were reviewed. Examples in the development of stimuli-responsive and targeted carriers for RNP delivery are highlighted. Finally, the challenges of current Cas9 RNP delivery systems and perspectives in rational design of next generation materials for this promising field will be discussed.
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Affiliation(s)
- Song Zhang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jiangtao Shen
- The Second People's Hospital of Taizhou affiliated to Yangzhou University, Taizhou, 225500, China
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China
| | - Yiyun Cheng
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China
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72
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Abstract
Immunotherapy has made a profound impact in the treatment of cancer in the last decade. Insights from the study of the intricate relationships between immune cells and cancer have led to the clinical development of strategies that redirect the power of the immune system to target and eliminate cancer. Today, immunotherapy represents a rapidly expanding and transformative force comprising multiple modalities.
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Affiliation(s)
| | - Katayoun Rezvani
- Department of Stem Cell Transplant and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
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